JP6822298B2 - Vehicle slide rail device - Google Patents

Description

The present invention relates to a vehicle slide rail device. Specifically, it has a slide rail whose seat position can be adjusted by releasing the lock mechanism and a memory member which can memorize the position before the change of the seat position by mechanical engagement, and the seat position by hitting the memory member. The present invention relates to a slide rail device for a vehicle having a memory mechanism that operates to return the device to the storage position before the change.

Conventionally, as a mechanism for connecting a vehicle seat in a slidable state with respect to a floor, the one described in Patent Document 1 below is known. That is, a slide rail that can adjust the seat position by releasing the lock mechanism, and a memory mechanism that memorizes the position before the change of the seat position by mechanical engagement and returns it to the storage position before the change. , Is provided. The lock mechanism is held in a locked state in the initial state, and can be switched to an unlocked state in which the seat position can be adjusted by operating the release lever. The memory mechanism is operated by a memory lever provided separately from the release lever described above.

Specifically, the above-mentioned memory mechanism performs the above-mentioned release operation of the lock mechanism by the above-mentioned operation of the memory lever, and leaves the memory member engaged with the slide position where the release operation is performed. , The seat position can be changed by pulling the trigger for detecting the contact with the memory member away from the memory member. Then, the above-mentioned memory mechanism returns the seat position to the storage position before the change after the above-mentioned change of the seat position, so that the above-mentioned trigger is applied to the memory member left in the above-mentioned storage position, and the lock mechanism Is pushed and moved to return to the locked state. The above-mentioned memory mechanism is normally operated so that the memory member is removed from the position storage state by the release lever when the release lever is operated to change the seat position, so that the seat position can be changed and moved. Along with this, it is taken to change the memory position.

JP-A-2010-125917

In the above-mentioned prior art, an engaging groove for engaging the memory member is provided facing a through hole that opens in a shape extending in the sliding direction of the memory rail that slidably supports the memory member. Therefore, there is a possibility that another member passing through the through hole may interfere with the engaging groove due to the installation. The present invention was devised to solve the above problems, and the problem to be solved by the present invention is a memory rail that slidably guides a memory member that stores a position before the seat position is changed. On the other hand, the engaging portion for engaging the memory member is formed in a shape that is unlikely to be caught by the slide member that slides through the through hole formed in the memory rail.

In order to solve the above problems, the vehicle slide rail device of the present invention takes the following means.

The first invention has a slide rail whose seat position can be adjusted by an release operation of a lock mechanism and a memory member which can store a position before a change of the seat position by mechanical engagement, and hits the memory member. It is a slide rail device for a vehicle having a memory mechanism that operates to return the seat position to the storage position before the change. The memory mechanism has a memory rail that movably guides the memory member in the adjustable sliding direction of the seat position. The memory rail has a through hole extending in the sliding direction so as to open in a direction intersecting the sliding direction of the memory member, and an engaging portion for engaging the memory member by moving it in the intersecting direction. The engaging portion is formed in an extra-regional region deviated in the hole width direction so as to leave a space in the hole width direction between the memory rail through hole forming region and the through hole.

According to the first invention, the through hole is made straight in the slide direction by forming the engaging portion for engaging the memory member in the extra-regional region deviating from the through hole of the memory rail in the hole width direction. The shape can be formed without unevenness on both extending sides. Therefore, the slide member that slides through the through hole of the memory rail can be smoothly slid without being hooked on both sides of the through hole.

The second invention has the following configuration in the first invention described above. The through hole is a guide hole that guides the memory member from both sides so as to be slidable.

According to the second invention, the memory member can be guided so as to be smoothly slid along the through hole of the memory rail.

It is a side view which showed the operation outline by operation of the getting-on / off lever of the slide rail device for a vehicle of Example 1. FIG. It is a side view which showed the adjustment operation of a seat position by operation of a loop handle. It is a side view which showed the state which the seat position was locked by returning the operation of a boarding / alighting lever. It is a perspective view which showed the whole structure of the slide rail device for a vehicle. It is an exploded perspective view of the rail structure on the left side. It is a perspective view which visualized and represented the inside of the rail structure on the left side. FIG. 6 is a perspective view of FIG. 6 viewed from the opposite side. It is an exploded perspective view which showed the state which the operation mechanism was removed from the rail structure on the left side. FIG. 8 is an exploded perspective view of FIG. 8 viewed from the opposite side. It is an exploded perspective view which showed the state which the memory piece was removed from a memory rail. It is an exploded perspective view of the operation mechanism. 11 is an exploded perspective view of FIG. 11 as viewed from the opposite side. It is a schematic diagram which showed the initial state of the slide rail device for a vehicle. It is a schematic diagram which emphasized the initial state of the operation system moved by the operation of a loop handle. FIG. 14 is a schematic view showing a state in which the loop handle is operated and the slide lock is released from FIG. It is the schematic which showed the state which the loop handle was further operated to the limit position from FIG. It is a schematic diagram showing the state which moved the seat position backward while operating the loop handle of FIG. It is a schematic diagram showing the state in which the operation of the loop handle is returned at the moving position of FIG. 17 and the slide is locked. It is a schematic diagram which emphasized the initial state of the operation system moved by the operation of a boarding / alighting lever. FIG. 19 is a schematic view showing a state in which the slide lock is released in a form in which the boarding / alighting lever is operated to leave the memory piece. FIG. 5 is a schematic view showing a state in which the seat position is moved backward while leaving the memory piece in the operating state of the boarding / alighting lever of FIG. It is a schematic diagram showing the state in which the operation of the boarding / alighting lever is returned at the moving position of FIG. 21 and the slide is locked. It is a schematic diagram showing the state in which the boarding / alighting lever was re-operated at the moving position of FIG. 22 and the slide lock was released. FIG. 3 is a schematic view showing a state in which the seat position is moved forward while the boarding / alighting lever of FIG. 23 is in operation, and the trigger link hits the memory piece and is pushed around. FIG. 6 is a schematic view showing a state in which the seat position is slide-locked to the storage position before the change by the operation of FIG. 24. FIG. 5 is a schematic view showing a state in which the trigger link rides on the memory piece by moving the seat position forward while keeping the operating state of the boarding / alighting lever of FIG. 20. FIG. 26 is a schematic view showing a state in which the trigger link gets over the memory piece to the front side due to the further forward movement of the seat position. FIG. 6 is a schematic view showing a state in which the seat position is moved backward from the moving position of FIG. 27 and the trigger link rides on the memory piece in a bent shape. FIG. 28 is a schematic view showing a state in which the trigger link pushes the memory piece to the rear side and pulls out to the rear side due to the further backward movement of the seat position. FIG. 5 is a schematic view showing a state in which the loop handle is operated at the moving position of FIG. 22 to release the slide lock. FIG. 3 is a schematic view showing a state in which the seat position is moved forward while the loop handle of FIG. 30 is in operation and the link is pressed against the memory piece. FIG. 31 is a schematic view showing a state in which the accompanying link is pushed and tilted to a position where the memory piece bottoms out due to further forward movement of the seat position. From FIG. 32, it is a schematic view showing a state in which the accompanying link is returned to the pushing portion of the memory piece by further moving the seat position forward.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

<< ● About the outline configuration of the slide rail device M >>
First, the configuration of the seat 1 to which the slide rail device M (slide rail device for vehicles) of the first embodiment is applied will be described with reference to FIGS. 1 to 33. As shown in FIG. 1, the seat 1 of this embodiment is configured as a driver's seat of a right-hand drive vehicle. The seat 1 includes a seat back 2 serving as a backrest portion of a seated occupant, a seat cushion 3 serving as a seating portion, and a headrest 4 serving as a headrest portion.

The seat cushion 3 described above is in a state of being connected to the floor F of the vehicle via a pair of left and right slide rails 10 constituting the slide rail device M described above. Further, the seat back 2 is connected to the rear end portion of the seat cushion 3 described above with a recliner (not shown) interposed therebetween. Further, the headrest 4 is mounted on the upper part of the seat back 2.

In the following description, when each direction such as front-back, up-down, left-right, etc. is shown, it means each direction shown in each figure. Further, the term "seat width direction" refers to the width direction (left-right direction) of the seat 1, and the term "vehicle width direction" refers to the width direction (left-right direction) of the vehicle. Therefore, the term "inside in the vehicle width direction" refers to the left side of the seat 1, that is, the side with the passenger seat (not shown), and the term "outside in the vehicle width direction" refers to the right side of the seat 1, that is, not shown. It points to the side with the entrance / exit door.

In the initial state of the seat 1 described above, the slides of the slide rails 10 described above are locked by urging, and the position in the front-rear direction on the floor F (hereinafter, “seat position”) is fixed. It is held in. As shown in FIG. 2, each of the above-mentioned slide rails 10 is released from the slide-locked state all at once by the operation of pulling up the loop handle 5 provided at the lower front portion of the seat cushion 3 by the user. Therefore, the seat position can be switched to a state in which the seat position can be adjusted in the front-rear direction. Then, each slide rail 10 is returned to the state in which the slide is locked at that position by returning the operation of the loop handle 5 after adjusting the seat position.

Further, as shown in FIG. 1, the above-mentioned slide rails 10 are also subjected to an operation in which the boarding / alighting lever 6 provided on the outer side (right side) of the seat cushion 3 in the vehicle width direction is pulled up by the user. The slide-locked state of is released all at once (circled number 1). However, in that case, even if the seat position of each slide rail 10 is lowered to the rear side while maintaining the operating state of the boarding / alighting lever 6, the operation mechanism 30 provided in the slide rail device M described later will be used. Due to the function, the seat back 2 can be lowered only to the boarding / alighting support position near the rear most where the position in the front-rear direction overlaps with the B-pillar BP of the vehicle (circled number 2).

Specifically, each of the above-mentioned slide rails 10 is lowered to the above-mentioned boarding / alighting support position near the rear most, so that the slide lock is performed at that position even if the above-mentioned operating state of the boarding / alighting lever 6 is maintained. It is designed to be switched to the state where it is. Therefore, the seat position is pulled down to the rear side while the boarding / alighting lever 6 is operated, and the movement is stopped, so that the seat position reaches the boarding / alighting support position near the rear most and a wide boarding / alighting space is created. It is possible to make the user recognize that the secured state has been reached.

Further, the slide rails 10 described above are slide-locked again by the user pulling up the boarding / alighting lever 6 again from the state where the seat position is lowered to the boarding / alighting support position near the rear most as described above. The previous state is released all at once (circled number 3). Then, each slide rail 10 moves the seat position to the front side while maintaining the operation state of the above-mentioned boarding / alighting lever 6, and by the action of the operation mechanism 30 provided in the slide rail device M described later. When the seat position reaches the position before it was lowered to the rear, that is, the position when the boarding / alighting lever 6 was first operated and lowered to the rear, those slides were returned to the locked state. Yes (circled number 4).

That is, when the boarding / alighting lever 6 is operated to change the seat position, the slide rail device M can store the position before the seat position is changed when the boarding / alighting lever 6 is operated. By returning to that position after changing the seat position, when the seat position reaches the above storage position, the slide is switched to the locked state and the seat position is changed to the storage position before the change. It can be easily restored to. Therefore, after a person sits on the seat 1 at the boarding / alighting support position near the rear most described above, the person operates the boarding / alighting lever 6 again to move the seat position forward to get on and off the seat position. By operating the lever 6, it is possible to return to the storage position before lowering to the rear side at once, and to return to the state locked at that position.

Further, as shown in FIG. 3, each of the slide rails 10 described above is solved at an intermediate position between the storage position before the change and the boarding / alighting support position near the rear most when the operation of the boarding / alighting lever 6 described above is performed in FIG. When it is broken, it can be switched to the slide-locked state at each unlocked position. Then, each slide rail 10 is again operated with the boarding / alighting lever 6 at each of the slide-locked positions, so that the seat position is again set between the storage position before the change and the boarding / alighting support position described in FIG. It is possible to switch to a state where it can be adjusted freely with. Then, each slide rail 10 is slid-locked at the same position by moving the seat position to the storage position before the change described in FIG. 1 while maintaining the operation state of the boarding / alighting lever 6 described above. It is supposed to be returned to.

《▲ Specific configuration of slide rail 10》
Hereinafter, specific configurations of each of the slide rail 10, the memory mechanism 20, and the operation mechanism 30 constituting the above-mentioned slide rail device M will be described in detail. First, the configuration of each slide rail 10 will be described with reference to FIGS. 4 to 5. That is, each slide rail 10 has a lower rail 11 mounted on the floor F and an upper rail 12 mounted on the lower part of the seat cushion 3 while being assembled so as to be slidable in the front-rear direction with respect to the lower rail 11. It is configured to have a lock spring 13 for locking the slide between the rails 11 and 12. Since the basic structure of each slide rail 10 is substantially the same on the left and right sides of each other, the detailed configurations of the slide rails 10 are slides arranged inside (left side) in the vehicle width direction shown in FIG. It will be described as a representative by the configuration of the rail 10. Here, the lock spring 13 described above corresponds to the "lock mechanism" of the present invention.

As shown in FIG. 5, the above-mentioned lower rail 11 is formed by bending a plate material such as a steel plate extending in a long shape in the front-rear direction of a vehicle into a substantially U-shape in the short direction. The lower rail 11 described above is in a state in which each end portion on the front and rear sides thereof is integrally fastened and fixed on the floor F by a fastening structure such as a bolt (not shown). The lower rail 11 described above is formed in a rail shape in which the cross-sectional shape thereof is substantially uniform in the front-rear direction.

Specifically, the above-mentioned lower rail 11 has a bottom surface portion 11A set on the floor F with its surface facing upward, and an inverted U-shape extending upward from both left and right side portions of the bottom surface portion 11A and facing inward of each other. It is formed in a cross-sectional shape having a pair of left and right lower side fin portions 11B having a shape that is bent back and extends. In the lower rail 11 described above, each end portion on the front and rear sides of the bottom surface portion 11A described above is set in a state of surface contact from above on the floor F, and bolts (not shown) or the like inserted from above are fastened. Due to the structure, it is integrally fastened on the floor F.

On the left and right lower side fin portions 11B of the lower rail 11 described above, the corresponding lock portions 13C of the lock spring 13 described later are respectively attached from the lower side to the respective edge portions of the tip bent back in an inverted U shape. A lock groove 11C is formed that can be inserted and engaged. A plurality of these lock grooves 11C are arranged at equal intervals in the front-rear direction in a shape that opens downward along each edge portion of the tip that is folded back and hangs down inside each lower side fin portion 11B. It is said to be in a formed state. The lock grooves 11C formed in the lower fin portion 11B are formed side by side at positions symmetrical with each other.

Similar to the lower rail 11 described above, the upper rail 12 is formed by bending a plate material such as a steel plate extending in the front-rear direction of the vehicle in a substantially Ω shape in the lateral direction. The above-mentioned upper rail 12 is inserted into the lower rail 11 from the opening end on either side of the above-mentioned lower rail 11 in the longitudinal direction, so that the upper rail 12 can be assembled so as to be slidable in the longitudinal direction with respect to the lower rail 11. ing. Specifically, the upper rail 12 is attached from the top plate portion 12A and the left and right side portions of the top plate portion 12A, which are attached with the cross-sectional shape of the upper rail 12 facing upward to the lower portion of the seat cushion 3 described above. It is formed in a cross-sectional shape having a pair of left and right upper-side fin portions 12B having a shape that extends downward and is bent back in a U shape toward the outside opposite to each other. The top plate portion 12A of the upper rail 12 described above is formed with a through hole 12Aa for passing the components of the memory mechanism 20 and the operation mechanism 30, which will be described later, in the height direction.

In the above-mentioned upper rail 12, the shape of each edge of the left and right upper-side fin portions 12B bent back in a U shape with respect to the above-mentioned lower rail 11 is the reverse of the left and right lower-side fin portions 11B of the lower rail 11. It is inserted and assembled in the longitudinal direction so as to engage with each part bent back in a U shape. By being assembled in this way, the upper rail 12 is in the height direction with respect to the lower rail 11 due to the engagement of the left and right upper side fin portions 12B and the lower side fin portion 11B with respect to the lower rail 11. It is said that it is assembled in a state where it is prevented from coming off in the direction of the seat width. Specifically, the above-mentioned upper rail 12 is in the height direction and the seat width direction with respect to the lower rail 11 via a resin shoe and a steel ball (rolling body) (not shown) assembled between the above-mentioned upper rail 11 and the above-mentioned lower rail 11. It is said that they are assembled so that they can slide smoothly in the front-back direction while suppressing backlash.

The lock spring 13 is formed by bending a wire rod such as steel into a substantially U-shape in a plan view extending in a long shape in the front-rear direction. The lock spring 13 described above is formed as a folded-back portion in which the rear end portion 13B is folded back in a substantially U-shape in a plan view. Then, the lock spring 13 is bent in a wavy shape toward the outside in the seat width direction at the middle portion of each line portion extending from the folded rear end portion 13B to the front side in pairs on the left and right. The lock portion 13C is formed. Further, each of the front end portions 13A of each wire portion of the lock spring 13 described above has a shape bent so as to project outward in the seat width direction.

In the lock spring 13 described above, each portion of the front end portion 13A of each of the above-mentioned wire portions bent outward in the seat width direction is formed on a standing wall portion of the front region of each upper side fin portion 12B of the above-mentioned upper rail 12. It is set in a state where it is inserted into each through hole 12Ba formed while being elastically squeezed from the inside and rotatably pin-connected. Further, the lock spring 13 described above is formed by having the folded portions on both corners of the rear end portion 13B described above being cut inward from the standing wall portion of the rear region of each upper side fin portion 12B of the upper rail 12 described above. It is set in a state where it is hooked from the upper side and rotatably pin-connected to each hook piece 12Bb.

Further, in the lock spring 13 described above, the left and right lock portions 13C described above penetrate in the seat width direction formed in the vertical wall portion of the central region in the front-rear direction of the left and right upper side fin portions 12B of the upper rail 12 described above, respectively. It is assembled as being passed through each through groove 12C while being elastically squeezed from the inside. Each of the above-mentioned through grooves 12C has a shape having a comb-shaped slit through which each of the lock portions 13C of the lock spring 13 passed through them can be individually elongated toward the upper side.

As described above, the lock spring 13 has a free state because the front end portion 13A and the rear end portion 13B are pin-connected to the upper rail 12 so as to be rotatable in the height direction at both ends. Then, by the restoring action of the spring-forced force itself, each of the above-mentioned lock portions 13C is passed from the lower side into each of the slits extending in a comb shape in each through groove 12C of the upper rail 12 from the front and rear sides. It is designed to be held in a supported state.

In the lock spring 13 described above, the sliding position of the upper rail 12 in the front-rear direction with respect to the lower rail 11 is formed in each slit of the through groove 12C formed in the upper side fin portion 12B on each side and the lower side fin portion 11B on each side. By aligning the lock grooves 11C so as to be aligned with each other in the vehicle width direction, the slits of the through grooves 12C and the lock grooves 11C are passed from the lower side by a spring urging force. It has become.

As a result, the slide of the upper rail 12 in the front-rear direction with respect to the lower rail 11 is held in a locked state via each lock portion 13C of the lock spring 13 described above. In the state where the slide of the upper rail 12 with respect to the lower rail 11 is locked, the lock portion 13C of the lock spring 13 is the lower rail 11 in each of the drawings of FIGS. 13, 14, 18, 19, 22, and 25. It is represented as a state in which the lock groove 11C is inserted from below.

The lock portion 13C of the lock spring 13 described above is pushed downward by the operation of the loop handle 5 (see FIGS. 14 to 18) or the boarding / alighting lever 6 (FIG. 19 to 25) described above. It is bent so that it can be removed downward from the lock groove 11C of the lower rail 11. By the above operation, the slide lock state of the upper rail 12 via the lock spring 13 is released, and the upper rail 12 can be slid in the front-rear direction with respect to the lower rail 11. After that, when the operation of the loop handle 5 or the boarding / alighting lever 6 was released, the lock spring 13 entered the lock groove 11C of the lower rail 11 again by the force of the spring as shown in FIG. 13 to lock the slide. It is supposed to be returned to the state.

At that time, when the slide position of the upper rail 12 is such that the lock groove 11C of the lower rail 11 is not located at the position where the lock portion 13C of the lock spring 13 is to be restored, that is, the shelf surface between the lock grooves 11C is located. The lock portion 13C is returned only to the position where it hits the shelf surface, and is not in the slide lock state. However, by shifting the slide position of the upper rail 12 from the slide position to either the front or rear side, the lock portion 13C is aligned with the lock groove 11C of the lower rail 11 and enters the lock groove 11C (slide lock). It can be switched to the state).

The above is the specific configuration of each slide rail 10 shown in FIG. Of the slide rails 10, those arranged inside (left side) in the vehicle width direction are further assembled with a memory mechanism 20 and an operation mechanism 30, which will be described later. With the above configuration, the inner slide rail 10 in the vehicle width direction is unlocked by the above-mentioned operation mechanism 30 by operating the above-mentioned boarding / alighting lever 6. ..

On the other hand, the slide rail 10 arranged on the outer side (right side) in the vehicle width direction can receive the above-mentioned operating force of the boarding / alighting lever 6 on the upper rail 12 via the rod 35 of the operating mechanism 30 described later. A release arm (not shown) assembled in the state is provided. With the above configuration, the lock release operation of the lock spring 13 is synchronously performed on the outer slide rail 10 in the vehicle width direction via the release arm (not shown) described above by operating the boarding / alighting lever 6. It has become like.

Further, a tension spring 14 is further hooked between the upper rail 12 and the lower rail 11 on the slide rail 10 arranged on the outer side (right side) in the vehicle width direction described above. With the above configuration, both slide rails 10 are always in a state in which a force in a direction in which the upper rail 12 is moved forward with respect to the lower rail 11 is applied by the spring urging force exerted by the tension spring 14 described above. There is. With the above configuration, each of the slide rails 10 can slide the upper rails 12 to the front side with a light force with respect to the lower rails 11 by releasing the slide-locked state. ..

Further, the slide rail 10 arranged on the inner side (left side) in the vehicle width direction has a seat position when the slide rail 10 is slid to the rear side in a state of being unlocked by the operation of the boarding / alighting lever 6 described above. Is attached with a stopper bracket 15 that can be locked at the boarding / alighting support position near the rear most described above in FIG. As shown in FIG. 5, the stopper bracket 15 described above is formed of a plate material such as steel that is bent into a substantially L shape, and the bottom plate portion and the standing plate portion thereof are formed with the bottom surface portion 11A of the lower rail 11. It is in a state of being externally attached to the lower rail 11 so as to be in contact with the outer surface portion of the lower side fin portion 11B on the left side.

In the stopper bracket 15 described above, the slide rail 10 on the inner side in the vehicle width direction is released from the locked state of the slide and slides to the rear side, so that the stopper bracket 15 slides to the rear side in the vehicle width direction at the upper edge portion of the standing plate portion. The locking surface portion 15A formed so as to project outward in the shape of a lid is applied to the trigger link 22A of the memory mechanism 20 described later from the rear side, and the trigger link 22A is pushed and turned to the front side to get on and off. The release state of the slide lock of the slide rail 10 accompanying the operation of the lever 6 is canceled, and the slide rail 10 is slide-locked at that position.

<< ▲ About the specific configuration of the memory mechanism 20 >>
Next, a specific configuration of the memory mechanism 20 will be described. As shown in FIGS. 5 to 7, the memory mechanism 20 is roughly divided into a memory body 21 assembled on the lower rail 11 side of the slide rail 10 and a detection operating body 22 assembled on the upper rail 12 side. Has been done.

As shown in FIGS. 19 to 22, the former memory body 21 remains in a fixed position on the lower rail 11 when the seat position is lowered to the rear side by the operation of the boarding / alighting lever 6 described above, and before the seat position is changed. It functions as a member that stores the position. The latter detection operating body 22 lowers the seat position to the rear side by operating the boarding / alighting lever 6 described above, and then again sets the seat position to the memory body 21 by operating the boarding / alighting lever 6 as shown in FIGS. 23 to 25. When returning to the remaining storage position, the memory body 21 is pressed against the memory body 21 from the rear side and rotates to lock the seat position at that position.

<< ■ About the specific configuration of the memory body 21 >>
Subsequently, the specific configuration of the memory body 21 described above will be described with reference to FIGS. 5 to 10. The memory body 21 always engages with the memory rail 21A extending in the front-rear direction, the memory piece 21B slidably attached to the memory rail 21A in the front-rear direction, and the memory piece 21B. It is configured to have a leaf spring 21C that urges the spring to be combined in the upward direction. Here, the memory piece 21B corresponds to the "memory member" of the present invention.

<< Configuration of memory rail 21A >>
In the memory rail 21A described above, as shown in FIGS. 5 to 7 and 10, a plate material such as steel extending in a long shape in the front-rear direction is bent in a substantially U-shape in the short direction. Further, each upper edge portion of the bent tip is bent inwardly toward each other in an eaves shape. With the above configuration, the memory rail 21A has a slit-shaped guide hole 21Aa formed at the center of the top plate portion in the seat width direction so as to extend straight in the front-rear direction in a streak shape. The memory rail 21A described above is provided with its front and rear end portions fixed integrally on the bottom surface portion 11A of the lower rail 11 described above by fastening with screws.

As shown in FIG. 10, in the memory rail 21A described above, by inserting the memory piece 21B into the rail from either the front or rear opening end portion, the mounted portion 21Bb of the memory piece 21B is moved upward from the guide hole 21Aa. The memory piece 21B is assembled so as to be enclosed in the upper and lower sides and the left and right sides, respectively. By the above assembly, the memory rail 21A can slide the memory piece 21B in the front-rear direction along the guide hole 21Aa in a state where the mounted portion 21Bb of the memory piece 21B is guided from both the left and right sides by the guide hole 21Aa. It is designed to be supported as a guided state.

A plurality of engaging holes 21Ab penetrating in a substantially rectangular shape in the height direction are provided at equal intervals in the front-rear direction on the left and right side edges of the top plate portion in which the guide holes 21Aa of the memory rail 21A are formed. It is formed side by side. These engaging holes 21Ab form each engaging claw 21Ba2 formed so as to project upward on both left and right side portions on the front end side of the memory piece 21B assembled in the memory rail 21A described above from the lower side. By fitting, the slide of the memory piece 21B in the front-rear direction with respect to the memory rail 21A is held in a locked state. The pitch at which the slide in the front-rear direction of the memory piece 21B described above is locked with respect to the memory rail 21A is set to be the same as the pitch at which the slide in the front-rear direction of the slide rail 10 is locked. Here, the guide hole 21Aa described above corresponds to the "through hole" of the present invention, and each engaging hole 21Ab corresponds to the "engaging portion" of the present invention.

<< Configuration of memory piece 21B >>
The memory piece 21B includes a seat surface portion 21Ba having a substantially flat plate shape that is long in the front-rear direction, and a mounted portion 21Bb that protrudes rearward from the central portion of the rear portion of the seat surface portion 21Ba. It is configured to have a posture holding portion 21Bc for holding a bottomed posture formed by the bottom surface shape of the seat surface portion 21Ba and the mounted portion 21Bb. The seat surface portion 21Ba described above has a stepped surface portion located on the front side of the mounted portion 21Bb, and the leg piece 38D of the rotating member 38 of the operation mechanism 30 described later shown in FIGS. It is formed as a pushing portion 21Ba1 that is pushed in from above.

Further, as shown in FIG. 10, standing plate-shaped engaging claws 21Ba2 are formed on both the left and right side portions on the front end side of the above-mentioned seat surface portion 21Ba, respectively, in a shape of being bent upward. There is. The engaging claws 21Ba2 are fitted into the engaging holes 21Ab formed at locations separated from the guide holes 21Aa of the memory rail 21A on both the left and right sides from below, whereby the memory of the memory piece 21B is stored. It functions as a lock portion that locks the slide in the front-rear direction with respect to the rail 21A.

The mounted portion 21Bb is configured to have a shape extending in an arm shape toward the rear side at a position protruding upward from the above-mentioned seat surface portion 21Ba. As shown in FIGS. 6 to 7 and 13, the above-mentioned mounted portion 21Bb is provided with a leg piece 38D of a triggering member 38 of the operation mechanism 30 described later on the front portion thereof, and a rear portion thereof described later. The leg side link 22Ab of the trigger link 22A of the memory mechanism 20 is provided as being attached. With the above configuration, in the initial state shown in FIG. 13, the mounted portion 21Bb is held in a state of being sandwiched from the front and rear sides by the leg piece 38D of the accompanying member 38 and the leg side link 22Ab of the trigger link 22A. It has become so. The above-mentioned mounted portion 21Bb is formed as a curved surface 21Bb1 in which the upper surface region of a portion extending beyond the seat surface portion 21Ba to the rear side is curved downward in a concave curved surface shape.

As shown in FIG. 13, the posture holding portion 21Bc has a seat width protruding from the fulcrum 21Bc1 formed of the rear lower corner surface of the mounted portion 21Bb described above and the pushing portion 21Ba1 of the seating surface portion 21Ba described above. It is composed of a fulcrum 21Bc2 extending in a streak shape in the direction. As shown in FIG. 32, the above-mentioned posture holding portion 21Bc is the above-mentioned both fulcrum points when the above-mentioned mounted portion 21Bb is pushed downward by the accompanying member 38 of the operation mechanism 30 described later. By bottoming the 21Bc1, 21Bc2 on the bottom surface of the memory rail 21A, the posture of the memory piece 21B is maintained in a forward tilted posture in which each engaging claw 21Ba2 does not disengage from each engaging hole 21Ab of the memory rail 21A. It functions as a holding unit for this purpose.

<< About the configuration of leaf spring 21C >>
As shown in FIGS. 10 and 13, the leaf spring 21C is bent into a shape in which the side view is substantially a crested mountain shape, and the top plate portion thereof is the push-in portion 21Ba1 and the mounted portion 21Bb of the seat surface portion 21Ba described above. It is said that it is assembled so that it is integrally applied to the bottom area that straddles a part of. In the state where the memory piece 21B described above is assembled in the memory rail 21A, the leaf spring 21C has a front leg 21Ca extending diagonally forward and downward from the seat surface portion 21Ba and a rear leg 21C extending diagonally downward rearward. The legs 21Cb are set so as to be elastically pressed against the bottom surface of the memory rail 21A, respectively. With the above configuration, the leaf spring 21C constantly exerts a force that elastically pushes up the seat surface portion 21Ba upward by the spring urging force, and engages each engaging claw 21Ba2 of the memory piece 21B with each engagement of the memory rail 21A. It is elastically fitted into the hole 21Ab and held in that state.

<< Operation of memory body 21 >>
As shown in FIG. 13, in the memory body 21 described above, in the initial state in which the seat position described above is placed in a certain storage position before the change of the memory piece 21B, each engaging claw 21Ba2 of the memory piece 21B described above is a memory. The position of the memory piece 21B in the front-rear direction is held in a fixed state as it is fitted into each engagement hole 21Ab of the rail 21A. Then, as shown in FIGS. 14 to 18, when the loop handle 5 is operated from the initial state to adjust the seat position, the memory piece 21B described above engages with the memory rail 21A. It is removed from the combined state and moved in the direction of movement of the seat position.

Specifically, in the memory body 21 described above, the loop handle 5 described above is pulled up from the initial state shown in FIG. 14 to the shape shown in FIGS. 15 to 16, so that the memory piece 21B described above may perform an operation described later. The rotating member 38 of the mechanism 30 pushes the leaf spring 21C downward against the spring urging force of the leaf spring 21C. As a result, each engaging claw 21Ba2 of the memory piece 21B is removed downward from each engaging hole 21Ab of the memory rail 21A, and the memory piece 21B can move in the front-rear direction with respect to the memory rail 21A. Can be switched to.

Therefore, as shown in FIG. 17, the seat position is lowered to the rear side while maintaining the operating state of the loop handle 5, so that the member is taken to the mounted portion 21Bb of the memory piece 21B. A pressing force from the front side is applied from 38, and the memory piece 21B is pushed and moved to a position corresponding to the moving position of the seat position. Further, when the seat position is moved to the front side while maintaining the operation state of the loop handle 5 described above, the memory piece 21B described above is pressed against the mounted portion 21Bb described above from the rear side. The trigger link 22A receives a pressing force from the rear side and is pushed to a position corresponding to the moving position of the seat position.

Then, as shown in FIG. 18, the memory body 21 described above is released from the upper side of the memory piece 21B by the rotating member 38 described above when the operation of the loop handle 5 is returned at the moving position described above. Then, the memory piece 21B is in an engaged state in which each engaging claw 21Ba2 is fitted into each corresponding engaging hole 21Ab of the memory rail 21A at the moving position by the spring urging force of the leaf spring 21C described above. By the above engagement, the position of the memory piece 21B in the front-rear direction with respect to the memory rail 21A is returned to a fixed state.

On the other hand, in the memory body 21 described above, as shown in FIGS. 19 to 25, when the boarding / alighting lever 6 is operated to adjust the seat position from the initial state described above, the memory piece 21B described above is connected to the memory rail 21A. It is designed to be left in place in a way that allows the movement of the seat position to escape without being disengaged from the engaged state. Specifically, in the memory body 21 described above, when the boarding / alighting lever 6 described above is operated from the initial state shown in FIG. 19 to the shape shown in FIG. 20, the traveling member 38 described above lowers the memory piece 21B. The memory piece 21B is pulled up to a position higher than the mounted portion 21Bb by being operated so as to be pulled up instead of being pushed into the memory piece 21B.

Therefore, as shown in FIG. 21, the memory piece 21B follows the movement of the seat position even if the seat position is lowered to the rear side while maintaining the operating state of the boarding / alighting lever 6 from the above operating state. Is left in place. Therefore, in the memory body 21 described above, as shown in FIG. 22, even if the operation of the boarding / alighting lever 6 is returned at the moving position of the seat position described above, the memory piece 21B is left behind at the position before the seat position is changed. It is supposed to be held as a state.

In the memory body 21 described above, as shown in FIG. 23, even if the boarding / alighting lever 6 is operated again at the position where the seat position is changed to the rear side, the memory piece 21B is in the position before the seat position is changed. It is retained as being left behind. Then, as shown in FIG. 24, the memory body 21 described above is lifted by the memory piece 21B by returning the seat position to the front side while maintaining the operating state of the boarding / alighting lever 6. The trigger link 22A of the detection operating body 22, which will be described later, is pressed against the portion 21Bb from the rear side, and the trigger link 22A is pushed around as the seat position is returned to the front side.

As shown in FIG. 25, the memory body 21 is moved by the above-mentioned operation to cancel the operation state of the boarding / alighting lever 6 through the operation of the detection operation body 22. At a position where the mounted portion 21Bb is overtaken on the front side, the vehicle is dropped into the front portion of the mounted portion 21Bb and returned to the same state as the initial state attached.

On the other hand, in the memory body 21 described above, the loop handle 5 is operated as shown in FIG. 30 from a state in which the seat position is moved backward by operating the boarding / alighting lever 6 described above, leaving the memory piece 21B described above in FIG. 22. When the seat position may be returned to the front side in that operating state, as shown in FIG. 31, the above-mentioned rotating member 38, which is in the operating state pushed down by the operation of the loop handle 5, is a memory piece. The memory piece 21B is pressed against the mounted portion 21Bb of the 21B from the rear side, and the memory piece 21B is pushed and tilted in a rearward downward shape against the spring urging force of the leaf spring 21C.

Due to the backward tilting, the memory piece 21B is in a state of accepting the forward movement of the companion member 38 in a form in which the companion member 38 rides on the mounted portion 21Bb. Then, in the memory piece 21B, the rear end of the mounted portion 21Bb is pushed down by the riding of the traveling member 38 onto the mounted portion 21Bb with the progress of the forward movement of the seat position. The rear fulcrum 21Bc1 forming the bottom-side posture holding portion 21Bc is first tilted so as to bottom out on the bottom surface of the memory rail 21A.

Then, as shown in FIG. 32, the memory piece 21B described above is at the maximum on the center side due to the progress of the forward movement of the traveling member 38 on the mounted portion 21Bb accompanying the forward movement of the seat position. The fulcrum 21Bc2 is also sunk to a position where it bottoms out on the bottom surface of the memory rail 21A. However, even if the memory piece 21B described above is submerged as described above, the engaging claws 21Ba2 on the front end side thereof are connected to the memory rail 21A due to the bottoming of both fulcrums 21Bc1, 21Bc2 of the posture holding portion 21Bc described above. It is possible to maintain the posture state in which the engagement holes 21Ab are inserted.

In the memory body 21 described above, as shown in FIG. 33, the traveling member 38 moves the mounted portion 21Bb of the memory piece 21B to the front side by the riding movement of the traveling member 38 due to the backward tilting of the memory piece 21B described above. By moving to the overcoming position, the memory piece 21B is lifted upward by the spring urging force of the leaf spring 21C, and the relative movement causes the companion member 38 to drop into the front portion of the mounted portion 21Bb. It is designed to return to the normal state.

More specifically, the memory piece 21B described above is in an operating state in which the memory piece 21B is pushed downward in a straight posture while the entire memory piece 21B is returned to the backward tilted posture by the accompanying rotating member 38 which is in the pushing-down operation state. Then, it is returned to the same state as shown in FIG. 15, which is operated so as to be disengaged from the engagement state with the memory rail 21A by the traveling member 38.

<< ■ About the specific configuration of the detection operating body 22 >>
Next, a specific configuration of the detection operating body 22 will be described. As shown in FIGS. 6 to 9 and 13, the detection operating body 22 is assembled and provided on the base bracket 31 of the operation mechanism 30 described later, which is assembled on the upper rail 12 of the slide rail 10 described above. Specifically, the detection operating body 22 described above is rotatably pin-connected to the upper region of the base bracket 31 and the trigger link 22A rotatably pin-connected to the rear region of the base bracket 31 described above. It is configured to have a cancel link 22B and an operation link 22C for transmitting and operating the rotation of the trigger link 22A to the cancel link 22B.

<< About the configuration of trigger link 22A >>
The trigger link 22A described above has a link shape having a long shape in the height direction, and an intermediate portion in the height direction is an axis whose axis is directed in the seat width direction with respect to the base bracket 31 described above. It is provided as a state in which the pins are rotatably connected by the pins 22Aa. More specifically, the trigger link 22A described above extends in a form of being curved upward and frontward from the connection point between the leg side link 22Ab extending downward from the connection point with the shaft pin 22Aa and the shaft pin 22Aa. It is composed of two links, a head side link 22Ac to be output.

The leg-side link 22Ab described above is always counterclockwise with respect to the paper surface of FIG. 13 around the shaft pin 22Aa due to the urging force of a spring (not shown) applied between the leg-side link 22Ab and the head-side link 22Ac described above. It is said to be in a rotationally urged state. Due to the above urging, the leg-side link 22Ab is always in a state in which the rotational posture with respect to the head-side link 22Ac is locked at the rotation position where the leg-side link 22Ab is abutted against the locking piece 22Ac1 formed so as to project from the head-side link 22Ac. It is supposed to be held as.

The head side link 22Ac is always rotationally urged in the clockwise direction toward the paper surface of FIG. 13 around the shaft pin 22Aa by the urging force of a spring (not shown) hooked between the head side link 22Ac and the base bracket 31 described above. It is said that it is in a state of being. Due to the above urging, the head side link 22Ac is always integrated with the same head side link 22Ac in the rotation direction, and the lower end portion of the above-mentioned leg side link 22Ab is the mounted portion 21Bb of the above-mentioned memory piece 21B. The rotational posture with respect to the base bracket 31 is held in a locked state at the rotational position where the base bracket 31 is pressed against the base bracket 31 and locked.

The trigger link 22A having the above configuration has an elongated hole in which a shaft pin 22Ca that rotatably connects the upper end of the head side link 22Ac and the rear end of the operation link 22C described later extends in an arc shape formed on the base bracket 31. Since it is configured to be passed through the 31C, it is configured to be able to rotate with respect to the base bracket 31 within a range in which the shaft pin 22Ca described above can pass through the elongated hole 31C. The elongated hole 31C described above is formed in a curved shape in an arc shape drawn around a shaft pin 22Aa which is a rotation center of the trigger link 22A described above.

<< About the configuration of cancel link 22B >>
The cancel link 22B is provided in a state in which the upper end portion is rotatably pin-connected by a shaft pin 22Ba whose axis is oriented in the seat width direction in the upper region of the base bracket 31 which is on the front side of the trigger link 22A described above. There is. The cancel link 22B described above is rotatably connected to a portion extending from the connecting portion with the shaft pin 22Ba to the lower front side by a shaft pin 22Bb1 in which the kick cam 22Bb further directs the axis in the seat width direction. It is said that it has been configured.

The kick cam 22Bb described above is always rotated counterclockwise toward the paper surface of FIG. 13 around the shaft pin 22Bb1 by the urging force of a spring (not shown) hooked between the kick cam 22Bb and the cancel link 22B described above. It is said to be in a state of being forced. Due to the above urging, the kick cam 22Bb is always rotated so that the locking piece 22Bb2 formed so as to project from the outer peripheral portion in the seat width direction is abutted against the locking projecting piece 22Bc formed so as to project from the cancel link 22B. At the position, the rotational posture with respect to the cancel link 22B is held in a locked state.

The kick cam 22Bb described above has a kick protrusion 22Bb3 that protrudes from the cancel link 22B so as to extend its shape further forward and downward in a state where the rotational posture with respect to the cancel link 22B described above is locked. It is said that. As shown in FIG. 21, the kick cam 22Bb is engaged with the operation mechanism 30 described later on the movement locus of the cancel link 22B when the cancellation link 22B is rotated in the counterclockwise direction shown around the shaft pin 22Ba. When the kicked pin 33C of the decam 33 is positioned, the cancel link 22B is rotated in the clockwise direction shown with respect to the cancel link 22B about the shaft pin 22Bb1 so as to avoid interference with the kicked pin 33C. It is designed to function to escape the rotational movement of.

However, as shown in FIG. 24, when the kick cam 22Bb is rotated so as to be returned in the clockwise direction shown around the shaft pin 22Ba from the position where the cancel link 22B has been rotationally moved, as shown in FIG. The kick pin 33C of the engagement / disengagement cam 33 of the operation mechanism 30 described later, which is located on the movement locus, is pushed and kicked by the integral rotation with the cancel link 22B, and the engagement / disengagement cam 33 is engaged with the operation cam 34. It is designed to work to remove it from the combined state.

The cancel link 22B having the above configuration has an elongated hole 31D in which a shaft pin 22Cb for rotatably connecting an intermediate portion in the link length direction and a front end of an operation link 22C described later is formed in a base bracket 31 in an arc shape. The configuration is such that the shaft pin 22Cb can be rotated with respect to the base bracket 31 within a range in which the shaft pin 22Cb can pass through the elongated hole 31D. The elongated hole 31D described above is formed in a curved shape in an arc shape drawn at the center of the shaft pin 22Ba, which is the center of rotation of the cancel link 22B described above.

<< Configuration of operation link 22C >>
As shown in FIG. 13, the operation link 22C has a link shape having a long shape in the front-rear direction. The operation link 22C is rotatably pin-connected by a shaft pin 22Ca whose rear end is oriented in the seat width direction with respect to the upper end of the head side link 22Ac of the trigger link 22A described above. Further, the operation link 22C is in a state in which the front end thereof is rotatably connected by a shaft pin 22Cb whose axis is directed in the seat width direction with respect to the intermediate portion in the link length direction of the cancel link 22B described above.

With the above configuration, the operation link 22C connects the above-mentioned trigger link 22A and the cancel link 22B in a state in which power can be transmitted, and when the rotational posture of the trigger link 22A is locked in the initial state, the cancel link 22B The rotation posture is also locked in the initial state. Then, as shown in FIG. 21, the operation link 22C is separated from the contact state with the memory piece 21B by the backward movement of the seat position and rotated in the clockwise direction shown by the shaft pin 22Aa. By moving, the amount of rotational movement is transmitted to the cancel link 22B, and the cancel link 22B is rotated around the shaft pin 22Ba in the counterclockwise direction shown in the drawing.

Further, as shown in FIG. 24, in the operation link 22C, the trigger link 22A described above is pressed against the memory piece 21B again from the rear side by the forward movement of the seat position from the retracted position, and is centered on the shaft pin 22Aa. By rotating in the counterclockwise direction shown in the figure, the amount of rotational movement is transmitted to the cancel link 22B, and the cancel link 22B is rotated in the clockwise direction shown in the drawing around the shaft pin 22Ba.

<< Operation of detection operating body 22 >>
In the detection operating body 22 described above, as shown in FIG. 13, in the initial state in which the seat position described above is placed in a certain storage position before the change of the memory piece 21B, the leg side link 22Ab of the trigger link 22A described above is described above. The head side link 22Ac and the leg side link 22Ab centered on the shaft pin 22Aa are pressed against the rear surface portion of the mounted portion 21Bb of the memory piece 21B by the spring-forced force (not shown). The integrated clockwise rotational movement is held in a state of being stopped at an intermediate position.

As shown in FIGS. 14 to 18, the above-mentioned detection operating body 22 is not operated at all even if the above-mentioned loop handle 5 is operated, and the state changes between before and after the operation of the loop handle 5. There is no such thing. However, as shown in FIGS. 19 to 25, when the boarding / alighting lever 6 is operated to adjust the seat position, the above-mentioned detection operating body 22 moves the seat position leaving the memory piece 21B. Along with this, it is moved so as to detect a state of being separated from the memory piece 21B and a state of being pressed against the memory piece 21B.

Specifically, the detection operating body 22 described above is not particularly operated even if the boarding / alighting lever 6 described above is operated from the initial state shown in FIG. 19 to the shape shown in FIG. 20. However, as shown in FIG. 21, the above-mentioned detection operating body 22 is moved to the rear side by operating the above-mentioned boarding / alighting lever 6 leaving the memory piece 21B, and thus the leg side of the above-mentioned trigger link 22A. The link 22Ab is removed from the contact state with the rear surface portion of the mounted portion 21Bb of the memory piece 21B, and the head side link 22Ac and the leg side link 22Ab are integrated by a spring-forced force (not shown). The leg side link 22Ab is turned clockwise around the shaft pin 22Aa so as to kick it forward.

The rotational movement by the spring-forced force in the clockwise direction shown around the shaft pin 22Aa of the trigger link 22A described above is the elongated hole 31C through which the shaft pin 22Ca connected to the upper end of the head side link 22Ac described above is passed. It is locked by hitting the rear end and being stopped. Then, by the rotational movement of the trigger link 22A, the cancel link 22B is rotationally operated so as to be pulled in the counterclockwise direction shown around the shaft pin 22Ba via the operation link 22C connected to the trigger link 22A.

At that time, the cancel link 22B with respect to the kick pin 33C of the engagement / disengagement cam 33 of the operation mechanism 30, which will be described later, is in a state of protruding to a position on the movement locus with the operation of the boarding / alighting lever 6 described above. , The kicking piece 22Bb3 of the kick cam 22Bb is rotated so as to be pressed from above. However, in the above-mentioned cancel link 22B, when the kicking tip 22Bb3 of the kick cam 22Bb is pressed against the kicked pin 33C of the engagement / disengagement cam 33 from the rotation direction, the kick cam 22Bb is opposed to the cancel link 22B by the shaft pin 22Bb1. It is possible to rotate in the clockwise direction shown in the figure against the spring-forced force (not shown) around the center to a position where the kick pin 33C can be removed while avoiding contact with the kick pin 33C. ..

Then, when the above-mentioned cancel link 22B is rotated to a position where it passes through the above-mentioned kicked pin 33C, the above-mentioned kick cam 22Bb is applied to the locking projecting piece 22Bc of the cancel link 22B by a spring urging force (not shown). It is designed to return to the posture state of. As shown in FIG. 22, the above-mentioned detection operating body 22 is not particularly operated even if the operation of the boarding / alighting lever 6 is returned at that position after the above-mentioned seat position is moved backward. Further, as shown in FIG. 23, the above-mentioned detection operating body 22 is not particularly operated even if the boarding / alighting lever 6 is operated again at the position where the above-mentioned seat position is changed to the rear side.

However, as shown in FIG. 24, in the detection operating body 22 described above, the seat position is returned to the front side while maintaining the operating state of the boarding / alighting lever 6, so that the leg side link 22Ab of the trigger link 22A described above is released. It is operated so as to be pressed against the mounted portion 21Bb of the memory piece 21B from the rear side and pushed around the shaft pin 22Aa in the counterclockwise direction shown as the movement of returning the seat position to the front side. ..

By the above operation, the detection operating body 22 transmits the rotation of the trigger link 22A described above to the cancel link 22B via the operation link 22C, and the cancel link 22B is pushed in the clockwise direction shown around the shaft pin 22Ba. Rotate. By this rotation, the cancel link 22B is pressed from below with the kicking tip 22Bb3 of the kicking cam 22Bb against the kicked pin 33C of the above-mentioned engagement / disengaging cam 33 projecting at a position on the movement locus.

In that case, even if the above-mentioned kick cam 22Bb is pressed against the kicked pin 33C from below, the cancel link 22B is counterclockwise shown around the shaft pin 22Bb1 with respect to the cancel link 22B. It is designed to maintain an integral state with the cancel link 22B without rotating in the direction. Therefore, as the rotational movement of the cancel link 22B progresses, the kicking tip 22Bb3 of the kicking cam 22Bb pushes and kicks the kicked pin 33C to disengage the engaging and disengaging cam 33 from the engagement state with the operation cam 34 described later. It is designed to be operated.

By the above operation, the detection operating body 22 cancels the release state of the slide lock of the slide rail 10 by the operation mechanism 30 described later, which is maintained by the operation state of the boarding / alighting lever 6 described above, and as shown in FIG. The lock spring 13 is locked to return the slide rail 10 to the slide-locked state. By the above operation, the detection operating body 22 is returned to the same state as the initial state in which the leg side link 22Ab of the trigger link 22A described above is pressed against the mounted portion 21Bb of the memory piece 21B from the rear side.

The above-described detection operating body 22 operates so as to unlock and return the lock spring 13 by pressing the trigger link 22A against the mounted portion 21Bb of the memory piece 21B from the rear side as described above. By retracting the seat position to the boarding / alighting support position near the rear most as described above, the head side link 22Ac of the trigger link 22A described above in FIG. 24 projects like an eaves of the stopper bracket 15 described above in FIG. It is applied to the 15A from the front side, and similarly, the lock spring 13 is operated to lock back.

The detection operating body 22 configured as described above is further moved to the rear side from the state where the seat position is placed in the storage position before the change of the memory piece 21B shown in FIG. 20 by the operation of the boarding / alighting lever 6 described above. Instead, as shown in FIG. 26, when the trigger link 22A is moved to the front side, the movement can be released without overloading the trigger link 22A pressed against the memory piece 21B from the rear side. It is equipped with an avoidance mechanism 22M.

Specifically, the above-mentioned overload avoidance mechanism 22M is a memory as shown in FIG. 26 from the position in the initial state (see FIG. 20) in which the above-mentioned trigger link 22A is pressed against the memory piece 21B from the rear side. The trigger link 22A and the cancel link 22B that rotates in response to the rotation of the trigger link 22A when an input of a force that is pressed against the piece 21B from the rear side and is pushed around the shaft pin 22Aa in the counterclockwise direction is received. And, respectively, are configured by a mechanism that allows the above-mentioned input to escape in the rotational direction against the spring-forced force (not shown).

Each relief rotation of the trigger link 22A and the cancel link 22B described above reaches the front end of the elongated hole 31C through which the shaft pin 22Ca connected to the upper end of the head side link 22Ac of the trigger link 22A described above is passed. The long hole 31D through which the shaft pin 22Cb connected to the intermediate portion of the cancel link 22B in the link length direction is passed, while allowing the rotation of the trigger link 22A to escape from the initial position. The rotation of the cancel link 22B from the initial position can be escaped until it reaches the upper end of the link.

By the overload avoidance mechanism 22M described above, the detection operating body 22 rides on the memory piece 21B in a forward leaning posture with the trigger link 22A moving forward from the initial position of the seat position described above. It slides on the piece 21B to a position where it gets over the front side. Then, as shown in FIG. 27, when the trigger link 22A gets over the memory piece 21B to the front side, the rotational posture of the trigger link 22A with respect to the memory piece 21B due to a spring-forced force (not shown). The leg side link 22Ab is returned to the shape of kicking it forward, which is the same as the state shown in FIG. 21 in which the contact from the rear side is removed.

Further, in the detection operating body 22 described above, the trigger link 22A shown in FIG. 27 is located in a state where the trigger link 22A exceeds the memory piece 21B to the front side, and the seat position of the trigger link 22A is the memory piece 21B as shown in FIG. 28. Even when it is moved to the rear side so as to return to the rear side, it is provided with a relief mechanism 22N that can escape the movement without overloading the trigger link 22A pressed from the front side against the memory piece 21B described above. ing.

Specifically, the above-mentioned relief mechanism 22N receives an input of a force in which the above-mentioned trigger link 22A is pressed against the memory piece 21B from the front side and is pushed around the shaft pin 22Aa in the clockwise direction shown in the drawing. At that time, the leg side link 22Ab of the trigger link 22A is configured by a mechanism that allows the leg side link 22Ab to escape in the direction of rotation that receives the above input independently against the spring-forced force (not shown) in the form of leaving the head side link 22Ac. There is.

That is, in the above-mentioned trigger link 22A, the locking piece 22Ac1 of the above-mentioned leg-side link 22Ab is the locking piece 22Ac1 of the above-mentioned head-side link 22Ac with respect to the rotation in the counterclockwise direction shown around the shaft pin 22Aa with respect to the head-side link 22Ac. It is said that the leg side link 22Ab is hooked between the head side link 22Ac and the head side link 22Ac for rotation in the opposite direction. It is possible to rotate while leaving the head side link 22Ac against the spring-forced force of.

Therefore, due to the relief mechanism 22N having the above configuration, the detection operating body 22 causes the leg side link 22Ab of the trigger link 22A to be placed on the memory piece 21B with respect to the head side link 22Ac as the seat position moves backward. It slides on the memory piece 21B to the rear side in a shape that bends in a middle-folded shape and rides on the memory piece 21B. Then, as shown in FIG. 29, the detection operating body 22 is in a state where the leg-side link 22Ab of the trigger link 22A is mounted on the mounted portion 21Bb of the memory piece 21B, and the memory is described. The piece 21B is pushed and tilted backward in the same manner as described above in FIG. 31 against the spring urging force of the leaf spring 21C by the action of the force pushed from above the piece 21B.

Then, as shown in FIG. 29, the leg-side link 22Ab of the trigger link 22A described above corresponds to FIG. 20 before moving the seat position forward due to the movement of the memory piece 21B being pushed and tilted backward. A position where the amount of movement to return to the position exceeds the mounted portion 21Bb by rotating in the counterclockwise direction shown around the shaft pin 22Aa while sliding on the curved surface 21Bb1 of the mounted portion 21Bb of the memory piece 21B. It is rotated to the same state as the initial state pressed from the rear side against the mounted portion 21Bb of the memory piece 21B.

<< ▲ About the concrete configuration of the operation mechanism 30 >>
Next, a specific configuration of the operation mechanism 30 will be described. As shown in FIGS. 5 to 9 and 13, the operation mechanism 30 is a base bracket 31 as a base assembled on the upper rail 12 of the slide rail 10 arranged inside (left side) in the vehicle width direction described above. It is installed by assembling to.

The operation mechanism 30 described above releases the lock spring 13 of the slide rail 10 from the locked state and the memory piece 21B from the engaged state with the memory rail 21A by operating the loop handle 5 described above as shown in FIGS. 14 to 18. While leaving the above-mentioned memory piece 21B engaged with the memory rail 21A by the operation of the release operation mechanism 30A that switches to the state of being pulled in the sliding direction and the above-mentioned boarding / alighting lever 6 as shown in FIGS. 19 to 25. It has a memory operating mechanism 30B that operates the lock spring 13 of the slide rail 10 so as to release it from the locked state.

Specifically, as shown in FIGS. 6 to 7, 11 and 13, the operation mechanism 30 is rotatably pinned to the base bracket 31 as the base and the front lower region of the base bracket 31. The connected release arm 32, the engagement / disengagement cam 33 rotatably pinned to the middle portion in the length direction of the release arm 32, and the front lower side region of the base bracket 31 can rotate coaxially with the release arm 32. An operation cam 34 pin-connected to the rod 35 connected to the operation cam 34 so as to be integrally rotatable around the same operation cam 34, and a rotatably pin to the front region of the base bracket 31. Assuming that the pulling operation link 36 is connected, the pressure receiving member 37 is pin-connected to the rear end of the pulling operation link 36, and the pressure receiving member 37 is elastically connected via a spring (not shown). It is configured to have a rotating member 38 provided in a state of being guided so as to be movable only in the height direction with respect to the base bracket 31.

<< About the configuration of the base bracket 31 >>
As shown in FIGS. 8 to 9, the above-mentioned base bracket 31 is formed by combining a plurality of plate materials such as steel, and is bent into a substantially L-shaped plate shape having a bottom plate portion and a standing plate portion. It is said to have a good shape. The base bracket 31 described above is in a state in which the bottom plate portion thereof is bolted onto the top plate portion 12A of the upper rail 12 described above and is integrally fixed.

<< About the configuration of the release arm 32 >>
As shown in FIGS. 8 to 9, 11 and 13, the release arm 32 has an arm shape having an elongated shape in the height direction, and the lower end thereof is on the left side of the rod 35 described later. The end is rotatably pin-connected to the base bracket 31. It is provided in a state where it is rotatably pin-connected to the operation shaft 35A by being passed in the axial direction through an operation shaft 35A whose axis is oriented in the seat width direction. There is. The release arm 32 is always rotationally urged in the counterclockwise direction shown in FIG. 13 around the operation shaft 35A by the urging force of a spring (not shown) hooked between the release arm 32 and the base bracket 31 described above. It is said that it is in a state of being. Due to the above urging, the release arm 32 is always at a rotational position where it abuts against the locking piece 31A formed on the front edge of the base bracket 31 so as to project in the seat width direction. The rotational posture with respect to 31 is held as a locked state.

The tip of the cable 32A that transmits the operating force from the boarding / alighting lever 6 is connected to the upper end of the release arm 32 described above. The cable 32A described above has a double cable structure in which a linear inner cable is passed inside a tubular outer cable, and the tip of the outer cable is integrally hooked to the rear side region of the base bracket 31. It is said that the tip of the inner cable that is fixed and extended from the inner cable is connected to the upper end of the release arm 32.

As shown in FIGS. 14 to 18, the release arm 32 having the above configuration is not operated at all even if the loop handle 5 described above is operated, and the state of the release arm 32 changes between before and after the operation of the loop handle 5. There is no such thing. However, as shown in FIG. 19, the release arm 32 described above is operated via the cable 32A described above by operating the boarding / alighting lever 6 connected to the upper end thereof via the cable 32A. In response to the transmission of the operating force, the operating shaft 35A is rotated in the clockwise direction shown in the drawing.

While the boarding / alighting lever 6 is being operated, the release arm 32 described above continues to receive its operating force via the cable 32A described above, and as shown in FIG. 21, the rotationally operated position. It is supposed to be kept in the state. Then, as shown in FIG. 22, the release arm 32 is released from the traction operation state by the cable 32A described above by returning the operation of the boarding / alighting lever 6 described above, and is described above by a spring urging force (not shown). It is designed to return to the initial state where it is abutted against the locking piece 31A.

<< About the configuration of the engagement cam 33 >>
As shown in FIG. 13, the engaging / disengaging cam 33 is rotatably connected to the intermediate portion of the release arm 32 in the length direction by a shaft pin 33A whose axis is directed in the seat width direction. .. The above-mentioned engagement / disengagement cam 33 is always rotated clockwise with respect to the release arm 32 about the shaft pin 33A by a spring-forced force (not shown) applied to the above-mentioned release arm 32. It is said to be in a state of being forced. Due to the above urging, the engagement / disengagement cam 33 always bends the push-projection piece 33B formed in a shape protruding rearward and downward from the shaft pin 33A into an arc shape of the operation cam 34 described later. It is held as being pressed against the outer peripheral surface.

As shown in FIG. 20, in the engagement / disengagement cam 33 having the above configuration, the release arm 32 described above is rotated around the operation shaft 35A by the operation of the boarding / alighting lever 6 in the clockwise direction shown in the drawing, whereby the push-projection piece 33B Is operated to rotate integrally with the release arm 32 via the shaft pin 33A while being pressed onto the outer peripheral surface of the operation cam 34. Then, due to the above rotation, the engaging / disengaging cam 33 presses the pushing projection piece 33B against the pressed portion 34A formed so as to project on the outer peripheral surface of the operating cam 34, and the operating cam 34 is centered on the operating shaft 35A. It is designed to be pushed in the clockwise direction shown in the figure.

Further, in the above-mentioned engagement / disengagement cam 33, the shaft pin 33A, which is the center of rotation thereof, is pressed against the lower surface of the pull-up operation link 36, which will be described later, with the rotation of the pull-up operation link 36 at the center of rotation. The shaft pin 36A on the front side is operated so as to be pulled up in the counterclockwise direction shown in the drawing. The above-mentioned engagement / disengagement cam 33 is always held at the above-mentioned rotationally operated position while the above-mentioned boarding / alighting lever 6 is being operated, and the above-mentioned operation cam 34 and the above-mentioned pull-up operation link 36 are pushed around. It is designed to be held in.

However, as shown in FIG. 24, the above-mentioned engagement / disengagement cam 33 is returned from the changed position in which the seat position is retracted from the memory piece 21B by the operation of the boarding / alighting lever 6 from the rotationally operated state. The cancel link 22B of the detection operating body 22 described above is operated so as to be pushed up from below, and the shaft pin 33A is sandwiched between the kick projecting pieces 22Bb3 of the kick cam 22Bb attached to the tip of the cancel link 22B. The kicked pin 33C provided so as to project in the seat width direction from the position opposite to the push-projection piece 33B is pushed upward and kicked upward, and the shaft pin 33A is centered on the release arm 32. It is rotated so that it is pushed in the clockwise direction.

By the above rotation operation, the engagement / disengagement cam 33 causes the push protrusion 33B on the lower end side of the engaging / disengagement cam 33 to be brought into contact with the pressed portion 34A of the operation cam 34 while maintaining the pulling state of the pulling operation link 36 by the shaft pin 33A which is the center of rotation. It is operated so as to be removed from the abutting state of the above, and is released from the engaged state with the operation cam 34. As a result, the engaging / disengaging cam 33 releases the pushing / turning state of the operating cam 34, and as shown in FIG. 25, before the operating cam 34 is pushed around the operating shaft 35A by a spring-forced force (not shown). It is designed to return to the initial position.

The kicked pin 33C of the above-mentioned engagement / disengagement cam 33 is passed through a long hole 32B extending in an arc shape formed through the above-mentioned release arm 32, and a portion passing through the same long hole 32B is a cancel link 22B. It is configured to extend in the seat width direction so that it can be pushed and kicked from below by the kicking piece 22Bb3 of the kick cam 22Bb. The elongated hole 32B described above is formed in a curved shape in an arc shape drawn around a shaft pin 33A which is a rotation center of the engaging / disengaging cam 33 described above.

<< Configuration of operation cam 34 >>
As shown in FIGS. 8 to 9, 11 and 13, the operation cam 34 is an operation shaft whose axis is oriented in the seat width direction in which the left end of the rod 35, which will be described later, is rotatably pinned to the base bracket 31. It is passed through the 35A in the axial direction and is integrally connected to the operation shaft 35A. The operation cam 34 is integrated with the operation shaft 35A by the urging force of a spring (not shown) that is always engaged with the base bracket 31 described above, and is shown in FIG. 13 centering on the operation shaft 35A. It is said to be in a state of being rotationally urged in the counterclockwise direction.

Due to the above-mentioned urging, the operation cam 34 always has a pressed portion 34A formed so as to project on the outer peripheral surface thereof, and a slight gap in the rotation direction between the operation cam 34 and the push-projection piece 33B of the above-mentioned engagement / disengagement cam 33. It is held as a locked state in the state of the rotational position where the cam is vacant. In the above state, the operation cam 34 is in a state in which the operation projectile 34B formed so as to project from the outer peripheral surface located on the clockwise side of the pressed portion 34A is slightly lifted from the upper surface of the loop handle 5. It is supposed to be held as.

As shown in FIG. 20, the operation cam 34 having the above configuration is operated by the release arm 32 described above by rotating the release arm 32 around the operation shaft 35A in the clockwise direction shown by the operation of the boarding / alighting lever 6. The pushed-out piece 33B of the pushed-moved engagement / disengagement cam 33 is pressed against the pressed portion 34A, and is integrally pushed with the operating shaft 35A in the clockwise direction shown in the drawing. By the above rotation, the operation cam 34 is operated so as to press the operation projecting piece 34B against the upper surface of the loop handle 5 from above and push down the loop handle 5.

As a result, the operation cam 34 operates the loop handle 5 in the same manner as when operating itself as shown in FIG. 15, and pushes down the lock spring 13 via the loop handle 5 to release the lock spring 13 from the locked state. ing. As shown in FIG. 21, the operation cam 34 pushes down the loop handle 5 by receiving the transmission of the operating force from the release arm 32 via the engagement / disengagement cam 33 described above while the boarding / alighting lever 6 is being operated. It is designed to be held in the operating state.

However, the operation cam 34 is returned to the initial position state by returning the operation of the boarding / alighting lever 6 as shown in FIG. 22. Further, as shown in FIG. 24, the operation cam 34 described above is a detection operating body 22 described above by returning the seat position from the position retracted by the operation of the boarding / alighting lever 6 to the position where the memory piece 21B is placed. Even when the above-mentioned engagement / disengagement cam 33 is pushed and kicked so as to be disengaged from the engagement state with the operation cam 34 by the operation, it is returned to the initial position state by the spring urging force (not shown). ..

<< About the composition of the rod 35 >>
As shown in FIG. 4, the rod 35 is integrally connected to an operating shaft 35A whose left end is rotatably pinned to the front lower region of the base bracket 31 and is oriented in the seat width direction. Along with being connected, the right end is integrally connected to an operating shaft 35B that is rotatably pin-connected to a support bracket 16 mounted on the upper rail 12 on the same side and is oriented in the axial direction in the seat width direction. It is said that it is in a state of being. With the above configuration, the rod 35 is integrally connected to the left operation shaft 35A and the right operation shaft 35B, respectively, and the operation cam 34 shown in FIG. 20 is integrally connected to the left operation shaft 35A. Is configured to be able to transmit the rotationally operated movement to the right operating shaft 35B.

The right operation shaft 35B shown in FIG. 4 described above is pressed against the upper surface of the loop handle 5 on the same side by performing an integral rotation operation with the left operation shaft 35A to push the loop handle 5. An arm member (not shown) that pushes down is integrally connected. With the above configuration, the operation of the boarding / alighting lever 6 described above in FIG. 20 is performed to rotate the operation shaft 35A on the left side, so that the operation shaft 35B on the right side shown in FIG. 4 is also rotated at the same time. Therefore, the loop handles 5 attached to the slide rails 10 on each side are operated so as to be pushed down all at once. As a result, the lock springs 13 of the slide rails 10 on each side are operated so as to be pushed down all at once, and the slide lock state of the slide rails 10 on each side is released all at once. Further, the operation shaft 35B on the right side is returned all at once as the rotation operation of the operation shaft 35A on the left side is returned.

<< About the configuration of the pulling operation link 36 >>
As shown in FIGS. 8 to 9, 11 and 13, the pulling operation link 36 has an arm shape having a long shape in the front-rear direction, and its front end portion has an axis oriented in the seat width direction. It is provided in a state of being rotatably pin-connected to the front side region of the base bracket 31 by the shaft pin 36A. The pulling operation link 36 projects in the seat width direction connected to the upper end portion of the carrying member 38, which will be described later, in the elongated hole 36B extending in the front-rear direction formed in the rear end portion so as to penetrate in the seat width direction. The shaft pin 38B is in a state of being passed through, and is always shown in FIG. 13 by the action of a force that elastically supports the accompanying rotating member 38 with respect to the base bracket 31 via the pressure receiving member 37 described later. It is kept in the initial position.

As shown in FIG. 15, the above-mentioned pull-up operation link 36 allows the movement of the accompanying rotation member 38 when the above-mentioned loop handle 5 is operated so that the accompanying rotation member 38 described later is pushed down. As described above, the shaft pin 38B is slid backward in the elongated hole 36B and pushed slightly downward. However, as shown in FIG. 20, the lifting operation link 36 is operated by operating the above-mentioned boarding / alighting lever 6 to rotate the release arm 32 around the operation shaft 35A in the clockwise direction shown in the drawing. The lower surface of the shaft pin 33A, which is the center of rotation of the engagement / disengagement cam 33 connected to 32, is pressed from below, and is rotated around the shaft pin 36A in the counterclockwise direction shown in the drawing.

By the above rotation, the pulling operation link 36 operates so as to pull up the shaft pin 38B passed through the elongated hole 36B on the rear end side, and moves the companion member 38 upward against the spring-forced force (not shown). The leg piece 38D on the lower end side of the rotating member 38 is pulled up to a position higher than the mounted portion 21Bb of the memory piece 21B. On the lower surface of the above-mentioned pulling operation link 36, a relief surface 36C curved in an arc shape is formed in an intermediate region thereof. The relief surface 36C is the rotation center of the engagement / disengagement cam 33 when the pulling operation link 36 described above pulls the rotating member 38 to a position higher than the mounted portion 21Bb of the memory piece 21B. It is formed in a region to which the shaft pin 33A is applied.

The relief surface 36C is the rotation center of the engagement / disengagement cam 33 when the pulling operation link 36 described above pulls the rotating member 38 to a position higher than the mounted portion 21Bb of the memory piece 21B. It is formed so as to be curved in an arc shape drawn around the shaft pin 33A. With such a configuration, the pulling operation link 36 further advances the rotational movement of the release arm 32 after the pulling member 38 is pulled up to a position higher than the mounted portion 21Bb of the memory piece 21B. Even if it is not operated in a form that can be pulled up any more, it is possible to release an excessive amount of operation movement so that the rotating member 38 is not pulled up too much.

<< About the configuration of the pressure receiving member 37 >>
As shown in FIGS. 8 to 9, 11 and 13, the pressure receiving member 37 is formed in a plate shape having an elongated shape in the height direction, and is formed in the height direction with respect to the base bracket 31 described above. It is provided as a guided state so that it can slide straight. Specifically, the pressure receiving member 37 described above has a shaft support pin extending in the seat width direction fixed to the base bracket 31 in an elongated hole 37A formed in the middle portion in the height direction and extending straight in the height direction. It is said that 31E has been passed through. Further, the pressure receiving member 37 described above is in a state in which a guide piece 31B bent so as to project from the base bracket 31 in the seat width direction is applied to the side surface on the rear side thereof.

With the above configuration, the pressure receiving member 37 receives the guide by the shaft support pin 31E and the guide piece 31B described above, and is supported so as to be able to slide straight in the height direction with respect to the base bracket 31 along the guide. It is said to be in a state of being. The pressure receiving member 37 described above is constantly moved and urged in a direction in which it is lifted straight upward with respect to the base bracket 31 by a spring urging force (not shown) applied between the pressure receiving member 37 and the base bracket 31 described above. It is in a state.

By the above urging, as shown in FIG. 13, the pressure receiving member 37 is always held in the initial position where the lower end of the elongated hole 37A abuts on the shaft support pin 31E described above and is locked. There is. The pressure receiving member 37 described above is formed with a pressure receiving piece 37C that projects from the front lower side corner portion toward the front lower side in a hook shape. As shown in FIG. 14, the pressure receiving piece 37C described above projects from the pressure receiving member 37 described above into a region directly below the rear end portion of the loop handle 5 described above, and is initially before the loop handle 5 is operated. In the state, a slight gap in the height direction is provided between the loop handle 5 and the loop handle 5.

As shown in FIG. 15, the pressure receiving member 37 described above is operated so that the loop handle 5 described above is operated to push down the rear end portion, so that the pressure receiving piece 37C is pressed from above by the rear end portion. Therefore, it is operated so as to be pushed downward against the above-mentioned spring-forced force (not shown). By the above operation, the pressure receiving member 37 pushes down the accompanying rotating member 38 described later, which is elastically connected to the pressure receiving member 37 via a spring (not shown), and described above via the accompanying rotating member 38. The memory piece 21B is operated so as to be pushed downward.

Further, the pressure receiving member 37 described above is operated so as to push down the rotating member 38 by the operation of the loop handle 5 described above, and the memory piece 21B bottoms out so that the rotating member 38 cannot be pushed down any more (FIG. FIG. When the loop handle 5 is further operated to the limit position from the position (15 position state), as shown in FIG. 16, the excessive operation movement amount pushed down by the loop handle 5 is transferred to the rotating member 38. It can be released by the deflection of the above-mentioned spring (not shown) intervening between the and.

As shown in FIG. 17, the pressure receiving member 37 described above is pushed down by the loop handle 5 while the loop handle 5 is being operated, and the memory piece 21B is pushed down via the rotating member 38. It is supposed to be kept as it is. Then, as shown in FIG. 18, the pressure receiving member 37 described above is returned to the initial position state by returning the operation of the loop handle 5 described above.

<< About the configuration of the carrying member 38 >>
As shown in FIGS. 8 to 9, 11 and 13, the guide member 38 is formed in a plate shape having an elongated shape in the height direction, and is formed in the above-mentioned pressure receiving member 37 and the seat width direction ( It is assembled so as to be overlapped in the plate thickness direction), and is provided in a state of being guided so that it can slide straight in the height direction with respect to the base bracket 31 like the pressure receiving member 37. Specifically, the above-mentioned carrying member 38 extends in the direction of the seat width fixed to the above-mentioned base bracket 31 in the elongated hole 38A formed in the middle portion in the height direction and extending straight in the height direction. The shaft support pin 31E is in a state of being passed together with the elongated hole 37A of the pressure receiving member 37.

Further, the above-mentioned carrying member 38 is in a state in which a guide piece 31B bent so as to project from the above-mentioned base bracket 31 in the seat width direction is applied to the rear side portion together with the pressure receiving member 37. .. According to the above configuration, the rotating member 38 receives the guide by the shaft support pin 31E and the guide piece 31B described above, and slides straight along the pressure receiving member 37 with respect to the base bracket 31 in the height direction. It is said to be supported in a shape that can be formed.

The above-mentioned rotating member 38 is always moved and urged in a direction of being pushed down with respect to the pressure-receiving member 37 by the urging force of a tension spring (not shown) engaged with the above-mentioned pressure-receiving member 37. It is said that. Due to the above urging, as shown in FIG. 13, the locking projection 38C protruding from the upper end portion to the rear side of the accompanying member 38 is always bent from the upper end rear portion of the pressure receiving member 37 in the seat width direction. It is held in the initial position where it is locked by hitting the locking piece 37B overhanging from above.

In the state of the initial position, the seat position of the rotating member 38 is the memory piece 21B, assuming that the leg piece 38D on the lower end side thereof is dropped to a position lower than the upper surface of the mounted portion 21Bb of the memory piece 21B described above. In the initial state where the leg piece 38D on the lower end side is placed in the storage position before the change, the leg piece 38D is held as being dropped into the shape of being attached to the front part of the mounted portion 21Bb of the memory piece 21B. There is.

The above-mentioned traveling member 38 is operated so that the loop handle 5 described above is pushed downward via the pressure receiving member 37 described above by being operated as shown in FIG. 15 from the initial state shown in FIG. To. As a result, the rotating member 38 pushes down the memory piece 21B by applying a pushing force from above to the pushing portion 21Ba1 of the memory piece 21B by the leg piece 38D on the lower end side thereof. In the above-described rotating member 38, even if the loop handle 5 is further operated to the limit position from the pushed down operation state, as shown in FIG. 16, the pressure receiving member 37 pushed down by the loop handle 5 is the rotating member. By extending the tension spring (not shown) described above with the 38 and moving the spring so as to release an excessive amount of operation movement, an excessive load is not received.

As shown in FIG. 17, the above-mentioned rotating member 38 is held in an operating state in which the memory piece 21B is pushed down by the pressing force received from the above-mentioned pressure receiving member 37 while the above-mentioned loop handle 5 is operated. It has become so. Then, as shown in FIG. 18, the above-mentioned rotating member 38 is returned to the initial position state by returning the operation of the above-mentioned loop handle 5.

Further, as shown in FIG. 19, the above-mentioned carrying member 38 has an upper end portion connected to the rear end portion of the above-mentioned pulling operation link 36, and the pulling operation link 36 is a boarding / alighting lever as shown in FIG. By being pulled up by the operation of No. 6, the bottom surface of the leg piece 38D on the lower end side thereof is pulled up to a position where the upper surface of the mounted portion 21Bb of the memory piece 21B is extended upward. Specifically, in the above-mentioned carrying member 38, the shaft pin 38B connected to the upper end portion thereof extends in the seat width direction is formed in the elongated hole 36B formed at the rear end portion of the pulling operation link 36 in the front-rear direction. It is said that it has been passed through.

According to the above configuration, the pull-up operation link 36 is operated so that the pull-up operation link 36 is pushed up by the shaft pin 33A of the engagement / disengagement cam 33 by the operation of the boarding / alighting lever 6, so that the pull-down operation of the loop handle 5 described above is performed. While the pressure receiving member 37 is pushed down, the pressure receiving member 37 is pulled up by the pulling operation link 36 against the urging force of the tension spring (not shown) hooked between the pressure receiving member 37 and the pressure receiving member 37. There is.

Since the above-mentioned pulling operation link 36 is held in the pulled-up operation state while the above-mentioned boarding / alighting lever 6 is operated, the above-mentioned leg piece 38D is released from the memory piece 21B. It is designed to be held in the raised operating state. Therefore, by moving the seat position backward while keeping the operation state of the boarding / alighting lever 6, as shown in FIG. 21, the compassion member 38 does not pull the memory piece 21B in the moving direction, and the memory piece 21B Is left in a state of being engaged with the memory rail 21A, and the memory piece 21B is moved over the rear side.

Then, as shown in FIG. 22, the above-mentioned carrying member 38 is returned to the initial position state by returning the operation of the above-mentioned boarding / alighting lever 6 to release the above-mentioned pulling operation state by the pulling operation link 36. It is supposed to be dropped. Further, as shown in FIG. 23, the above-mentioned rotating member 38 is again operated by the boarding / alighting lever 6 from the position where the seat position is moved, so that the mounted portion 21Bb of the memory piece 21B again. It is designed to be operated in a state where it is pulled up to a high position. Therefore, as shown in FIG. 24, by returning the seat position to the storage position where the memory piece 21B was placed before the seat position was moved backward while the operation state of the boarding / alighting lever 6 was maintained, the rotating member 38 was the memory piece. The mounted portion 21Bb of the 21B is returned to a position where it has passed over the front side.

The leg piece 38D on the lower end side of the rotating member 38 described above has an inclined surface 38Da whose front lower corner surface is chamfered diagonally. According to the above configuration, as shown in FIG. 31, the leg piece 38D of the rotating member 38 is pushed down by the operation of the loop handle 5 from the position where the seat position is retracted from the remaining storage position of the memory piece 21B. Even if the memory piece 21B is pressed against the mounted portion 21Bb from the rear side, the contact with the mounted portion 21Bb from the rear side is diagonally released by the contact with the inclined surface 38Da, and the surface on the mounted portion 21Bb is appropriate. It is designed so that it can be returned to a position where it gets over and crosses the mounted portion 21Bb to the front side.

《● Explanation of overall operation》
The slide rail device M configured as described above can adjust the seat position as follows by operating the boarding / alighting lever 6 described above in FIG. 1 and the loop handle 5 described above in FIG. It is designed to be moved to the state. In the following description, as shown in FIG. 13, a state in which the seat position is placed in a certain storage position of the memory piece 21B before the change will be described as an initial state.

《● Movement of each part when operating the loop handle 5》
First, with reference to FIGS. 14 to 18, the movement of each part when the loop handle 5 is operated from the initial state will be described. That is, when the loop handle 5 is pulled up from the initial state shown in FIG. 14, as shown in FIG. 15, the lock spring 13 is pushed down by the rear end portion of the loop handle 5 to be released from the locked state and to receive pressure. The member 37 is also pushed down, and the memory piece 21B is pushed down via the rotating member 38 to be disengaged from the engagement state with the memory rail 21A. The loop handle 5 can be operated up to the limit position shown in FIG. 16, but even if the loop handle 5 is operated up to this position, the pressure receiving member 37 and the rotating member 38 are overloaded due to excessive operation as described above. Is designed not to hang.

Next, by moving the seat position backward as shown in FIG. 17 while the loop handle 5 is being operated, the leg piece 38D of the companion member 38 is mounted while the memory piece 21B is being pushed down. By pressing the raised portion 21Bb to the rear side, the memory piece 21B is moved to the moving position of the seat position in a form of being dragged by the rotating member 38. When moving the seat position forward, the leg-side link 22Ab of the trigger link 22A presses the mounted portion 21Bb of the memory piece 21B forward, so that the memory piece 21B is moved to the moving position of the seat position. It is supposed to go.

Then, when the seat position is moved to an arbitrary position, the operation of the loop handle 5 is returned as shown in FIG. 18, so that the lock spring 13 returns to the locked state and the pressure receiving member 37 and the rotating member 38 are also in the initial positions. The memory piece 21B is returned to the same state as the initial state at the state where the memory piece 21B is engaged with the memory rail 21A at that position, that is, at the position where the seat position is changed.

《● Movement of each part when operating the boarding / alighting lever 6》
Next, with reference to FIGS. 19 to 25, the movement of each part when the boarding / alighting lever 6 is operated from the initial state will be described. That is, when the boarding / alighting lever 6 is operated from the initial state shown in FIG. 19, the rear end portion of the loop handle 5 is pushed down via the operation cam 34 by the operation of the release arm 32 as shown in FIG. The lock spring 13 is pushed down by the rear end portion of the loop handle 5 to be released from the locked state, and the pressure receiving member 37 is also pushed down. However, on the other hand, the pulling operation link 36 is pulled up by the shaft pin 33A which is the rotation center of the engagement / disengagement cam 33 connected to the release arm 32, and the carrying member 38 is the mounted portion of the memory piece 21B. It is operated so as to be pulled up to a position higher than 21Bb. Therefore, even if the boarding / alighting lever 6 is operated, the memory piece 21B is held in a state of being engaged with the memory rail 21A.

Next, by moving the seat position backward as shown in FIG. 21 while operating the boarding / alighting lever 6, the memory piece 21B described above is left in the initial position and the rotating member 38 is moved to the memory piece 21B. It gets over the mounted portion 21Bb to the rear side. Then, due to the above movement, the trigger link 22A is separated from the state where the trigger link 22A is pressed against the mounted portion 21Bb of the memory piece 21B from the rear side, and the leg side link 22Ab is kicked out to the front side by a spring urging force (not shown). It is switched to the posture to be.

Then, when the seat position is moved to an arbitrary position, the lock spring 13 is returned to the locked state by returning the operation of the boarding / alighting lever 6 as shown in FIG. 22, and the pressure receiving member 37 and the carrying member 38 are also in the initial positions. It will be in the state of being returned to. Next, when the boarding / alighting lever 6 is operated again from the moving position as shown in FIG. 23, the rear end portion of the loop handle 5 is pushed down by the operation of the release arm 32 as in the previous operation. The lock spring 13 is released from the locked state, and the carrying member 38 is pulled up to a position higher than the mounted portion 21Bb of the memory piece 21B.

Next, in the above-mentioned operating state, as shown in FIG. 24, the seat position is returned from the retracted position to the position where the memory piece 21B is placed, so that the above-mentioned rotating member 38 is the memory piece 21B. The trigger link 22A is pressed against the mounted portion 21Bb of the memory piece 21B from the rear side while getting over the mounted portion 21Bb to the front side, whereby the cancel link 22B is engaged and disengaged by the kick cam 22Bb on the tip side. Is kicked so as to be disengaged from the engaged state with the operation cam 34.

By the kicking operation, as shown in FIG. 25, even if the boarding / alighting lever 6 is maintained in the operating state, the operating cam 34 is returned to the initial position by a spring-bearing force (not shown), and the same operation is performed. The operating state of the loop handle 5 pushed and moved by the cam 34 is returned, and the lock spring 13 returns to the locked state. By the above operation, the seat position can be changed even if the boarding / alighting lever 6 is still in the operated state by a simple operation of moving the seat position toward the memory position before the change while the boarding / alighting lever 6 is operated. When the memory piece 21B reaches the remaining storage position, it is returned to the slide-locked state, and the memory piece 21B is returned to the storage position before the change. Therefore, by returning the operation of the boarding / alighting lever 6 after that, the release lever is returned to the initial position state, and the slide rail device M is returned to the same state as the initial state.

When the seat position is moved backward after the operation of the boarding / alighting lever 6 shown in FIG. 21 above, the head side link 22Ac of the trigger link 22A described above is moved back to the boarding / alighting support position near the rear most as it is. When pressed from the front side against the locking surface portion 15A of the stopper bracket 15 described above in FIG. 5, the trigger link 22A operates in the same manner as shown in FIGS. 24 to 25, and the seat position is slid-locked at that position. It is designed to operate to make it work. By the above operation, the seat position can be easily retracted to the boarding / alighting support position near the rear most and locked, and the boarding / alighting space can be widened to appropriately support the boarding / alighting operation.

《● Summary》
Summarizing the above, the slide rail device M of this embodiment has the following configuration. That is, the slide rail (slide rail 10) whose seat position can be adjusted by the release operation of the lock mechanism (lock spring 13) and the memory member (memory piece 21B) which can store the position before the change of the seat position by mechanical engagement. A memory mechanism (memory mechanism 20) that operates to return the seat position to the storage position before the change by hitting the memory member (memory piece 21B), and a slide rail device for a vehicle (slide rail device). M).

The memory mechanism (memory mechanism 20) has a memory rail (memory rail 21A) that guides the memory member (memory piece 21B) so as to be movable in the sliding direction in which the seat position is adjusted. A through hole (guide hole 21Aa) in which the memory rail (memory rail 21A) opens in a direction (upward direction) intersecting the sliding direction of the memory member (memory piece 21B) and extends in the sliding direction, and a memory member. It has an engaging portion (engagement hole 21Ab) for engaging (memory piece 21B) by moving it in the intersecting direction. The engaging portion (engagement hole 21Ab) is located between the formation region of the through hole (guide hole 21Aa) of the memory rail (memory rail 21A) and the through hole (guide hole 21Aa) in the hole width direction (seat width direction). It is formed in an extra-regional region deviated in the hole width direction (seat width direction) at intervals.

In this way, the engaging portion (engagement hole 21Ab) for engaging the memory member (memory piece 21B) is formed in the hole width direction (seat width direction) from the through hole (guide hole 21Aa) of the memory rail (memory rail 21A). ), The through hole (guide hole 21Aa) can be formed into a shape having no unevenness on both sides extending straight in the slide direction. Therefore, the slide members (leading member 38 and the trigger link 22A) that slide through the through holes (guide holes 21Aa) of the memory rail (memory rail 21A) are hooked on both sides of the through holes (guide holes 21Aa). It can be slid smoothly without any.

Further, the through hole (guide hole 21Aa) is a guide hole that guides the memory member (memory piece 21B) from both sides so as to be slidable. With such a configuration, the memory member (memory piece 21B) can be guided so as to be smoothly slid along the through hole (guide hole 21Aa) of the memory rail (memory rail 21A). ..

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Although the embodiment of the present invention has been described above using one embodiment, the present invention can be implemented in various forms other than the above embodiment. For example, the configuration of the slide rail device for vehicles of the present invention is provided for seats other than the driver's seat of an automobile, seats applied to vehicles other than automobiles such as railways, and various vehicles such as aircraft and ships. It can be widely applied to various sheets. Further, the slide rail may change the seat position in the vehicle width direction. Further, the slide rail is used for connecting a seat back to a vehicle body such as a side wall of a vehicle so that the backrest angle can be adjusted, as disclosed in documents such as Japanese Patent Application Laid-Open No. 2010-274738. It may be the one used.

Further, the lock mechanism of the slide rail is a type in which the spring itself attached to the upper rail (movable side rail) as shown in the above embodiment enters into the lock groove of the lower rail (fixed side rail) by urging and locks. Not limited to the configuration. For example, even if the lock claw attached to the upper rail enters into the lock groove of the lower rail by a spring-forced force and locks as disclosed in documents such as Japanese Patent Application Laid-Open No. 2014-189218. Good.

Further, the memory mechanism is used not only for storing the position before the change of the seat position and moving the seat position in the direction of retracting from the same storage position, but also for moving the seat position forward from the storage position. It may be.

Further, the through hole formed in the memory rail may be a shape that opens in a direction intersecting the sliding direction of the memory member and extends in the sliding direction, and has a configuration of a lateral opening in addition to an upward opening. It doesn't matter. Further, the through hole formed in the memory rail does not necessarily have to be configured as a guide hole for guiding the memory member from both sides so as to be slidable, and the memory member is guided at another place to perform the memory. It may simply serve to pass the member through a state in which it can be moved in the sliding direction.

Further, the engaging portion formed on the memory rail may be any one that moves the memory member in a direction intersecting the sliding direction in which the through hole extends to engage the memory member, and moves the memory member upward to engage the memory member. In addition to the one, it may be moved sideways to engage. Further, the engaging portion formed on the memory rail may have a shape that allows the memory member to be engaged, and may have a convex shape or a tooth shape in addition to a hole shape or a concave shape.

1 Seat 2 Seat back 3 Seat cushion 4 Headrest 5 Loop handle 6 Boarding / alighting lever 10 Slide rail 11 Lower rail 11A Bottom part 11B Lower side fin part 11C Lock groove 12 Upper rail 12A Top plate part 12Aa Through hole 12B Upper side fin part 12B Hook piece 12C Through groove 13 Lock spring (lock mechanism)
13A Front end 13B Rear end 13C Lock part 14 Tension spring 15 Stopper bracket 15A Locking surface part 16 Support bracket 20 Memory mechanism 21 Memory body 21A Memory rail 21Aa Guide hole (through hole)
21Ab Engagement hole (engagement part)
21B memory piece (memory member)
21Ba Seat surface 21Ba1 Pushing part 21Ba2 Engagement claw 21Bb Riding part 21Bb1 Curved surface 21Bc Attitude holding part 21Bc1 fulcrum 21Bc2 fulcrum 21C Leaf spring 21Ca Front leg 21Cb Rear leg 22A Axle 22A Side link 22Ac1 Locking piece 22B Cancel link 22Ba Shaft pin 22Bb Kick cam 22Bb1 Shaft pin 22Bb2 Locking piece 22Bb3 Kicking piece 22Bc Locking piece 22C Operation link 22Ca Shaft pin 22Cb Shaft pin 22M Overload avoidance mechanism 22N Mechanism 30A Release operation mechanism 30B Memory operation mechanism 31 Base bracket 31A Locking piece 31B Guide piece 31C Long hole 31D Long hole 31E Shaft support pin 32 Release arm 32A Cable 32B Long hole 33 Detachment cam 33A Shaft pin 33B Pushing piece 33C Kick pin 34 Operation cam 34A Pressed part 34B Operation projectile 35 Rod 35A Operation shaft 35B Operation shaft 36 Pull-up operation link 36A Shaft pin 36B Long hole 36C Relief surface 37 Pressure receiving member 37A Long hole 37B Locking piece 37C Pressure receiving piece 38 Member 38A Long hole 38B Shaft pin 38C Locking protrusion 38D Leg piece 38Da Inclined surface F Floor BP B Pillar M Slide rail device for vehicles (slide rail device)

Claims (1)

It has a slide rail whose seat position can be adjusted by releasing the lock mechanism and a memory member which can store the position before the change of the seat position by mechanical engagement, and the seat position is reached by contact with the memory member. A vehicle slide rail device having a memory mechanism that operates to return the device to the storage position before the change.
The memory mechanism has a memory rail that movably guides the memory member in the adjusted sliding direction of the seat position.
A through hole as a guide hole for guiding the memory member from both sides so that the memory rail opens in a direction intersecting the sliding direction of the memory member and extends in the sliding direction, and the memory. It has an engaging portion for engaging the member by moving it in the opening direction of the through hole .
A vehicle slide rail device in which the engaging portion is formed in an extra-regional region deviated in the hole width direction so as to leave a space in the hole width direction between the through-hole forming region of the memory rail and the through-hole.

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