JPH0270542A - Seat slide device with memory - Google Patents

Abstract

PURPOSE:To enable easy alighting and boarding by permitting the backward movement of a seat by the first step operation of a lock release operation lever, and permitting the fore and aft movement of the seat by a second step operation. CONSTITUTION:A left and right pair of slide devices 1 (one side illustration is omitted) is installed on a body floor. The rotation operation of a lock release operation lever 8 against a lock spring 9 causes a lock plate 7 to be rotated with an axis pin 6 as a supporting point. This causes the lock nail 7a of the plate 7 to be separated from a lock hole 3a to become a lock release condition, and a seat together with an upper rail 4 can be movably adjusted fore and aft. And the release of the lever 8 at the optimum seat position selected by a seated person by the deat adjustment causes the plate 7 to be rotatedly returned by the energized force of the spring 9. This causes the nail 7a to be engaged with the hole 3a at the said position to enable the said seat together with the rail 4 to be positioningly locked. The memory mechanism 10 of a seat position is attached to such slide device 1.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a seat slide device with memory that supports a vehicle seat so that it can be slid forward and backward.

(Prior Art) Conventionally, a vehicle seat is generally mounted and supported on a vehicle body floor via a slide device.

Then, by operating the lock release operation lever of the slide device and releasing the lock by the lock pawl, the seat can be slid back and forth to obtain the optimal seating position, and then the lock release operation lever can be released. The lock pawl automatically returns to the seat positioning lock state.

(Problem to be Solved by the Invention) In recent years, due to improvements in the physique of passengers and sporty riding postures, when getting on and off, especially on the driver's seat side, the space between the handles and the like is narrow and interferes with each other, making it difficult to get on and off. Problems such as abrasion of the epidermis have arisen.

Therefore, some people operate the lock release operation lever of the slide device to release the lock when getting on and off the vehicle, and then move the seat to the rearmost position to get on and off the vehicle. However, in such cases, when returning the seat to its original position after getting in the vehicle (seating), the sliding device of general vehicle seats does not have a memory function, so it must be reset each time.
! I have to adjust the settings, and the operation is troublesome and troublesome.
There was an inconvenience that it was difficult to return to the original optimum position after starting from -.

An electric seat slide device can automatically return the seat to its original position and solve the above problem, but in this case, the seat movement speed is slow, causing irritation to the occupants, and the structure is complicated, resulting in increased weight. In addition, there was a problem in that it caused high costs and was difficult to install in general vehicles.

The present invention has been developed in view of the above circumstances, and can be easily applied by modifying the conventional slide device a little, and does not cause an increase in weight or cost.The present invention also makes it easy to get on and off the seat by unlocking the seat and moving it to the rearmost position. To provide a very simple and impractical seat slide device with a memory that can return a seat to its original optimal position in one go even if it is moved, without having to readjust it every time. With the goal.

[Structure of the invention]

(Means for Solving the Problems) In order to achieve the above object, the seat slide device with memory according to the present invention has a sliding device that supports a vehicle seat. The seat is configured to include a memory mechanism that allows the seat to move rearward while holding the position in memory, and releases the memory by operating the second stage of the lock release operation lever to allow the seat to move back and forth. Features.

(Function) With the above configuration, in the seat slide device with memory of the present invention, by operating the first stage of the lock release operation lever of the slide device, the lock by the lock claw of the slide device is released, and the seat is moved rearward as it is. This allows passengers to get on and off the vehicle easily. At this time, the memory mechanism retains the original seat position in memory, and if the seat that has been moved backwards is returned to the front, it can be returned to the original seat position in one go, and then the lock release operation can be performed. If you release the lever, the position will return to its original locked state, eliminating the need for readjustment. Further, by operating the second stage of the lock release operation lever, the lock by the lock pawl is released and the memory mechanism is released from memory. In this state, the seat can be slid in either direction. In other words, the seat position can be changed and adjusted, and by releasing the lock release operation lever after adjusting the seat position, the seat position can be locked and stored in memory at the changed position.

(Embodiment) A first embodiment of the present invention will be described below with reference to FIGS. 1 to 5. In the figure, 1 indicates a slide device for a vehicle seat (not shown). The slide device 1 itself is substantially the same as the conventional one, and includes a lower rail 3 fixed to the vehicle floor by a pair of front and rear fasteners 2 such as bolts, and an upper rail 4 slidably fitted onto the lower rail 3 so as to be movable back and forth. A lock plate 7 is fixed to a bracket 5 welded to the upper surface of the upper rail 4 so as to be horizontally rotatable via an axis pin 6, and a lock plate 7 is integrally connected to the lock plate 7 and extends forward. The extended lock release operation lever 8, the lock claw 7a integrally protruding from the rear end side of the lock plate 7, and the lock claw 7a are attached to the side wall of the lower rail 3 by a small length in the longitudinal direction. The lock spring 9 is always biased in the direction of fitting into a plurality of lock holes 3a formed at intervals.

A pair of left and right slide devices 1 (one side not shown) is installed on the vehicle floor. Note that the slide device on the side not shown does not have a lock release operation lever 8 and has a structure in which the lock plate 7 is interlocked with that of the slide device 1 shown in the figure via an interlocking bar or the like, or the lower rail 3 and the upper rail 4 This structure has no locking member at all. Then, a seat (not shown) is mounted and supported on the upper rails 4 of the left and right slide devices, and in this state, when the lock release operation lever 8 is rotated against the lock spring 9, the lock plate 7 releases the shaft pin 6. When the seat rotates around the fulcrum, the lock pawl 7a separates from the lock hole 3a and becomes unlocked, allowing the seat to be moved forward and backward together with the upper rail 4 and adjusted, and by this adjustment, the optimum seat position for the seated person is selected. When the lock release operation lever 8 is released, the lock plate 7 is rotated back due to the biasing force of the lock spring 9, and the lock claw 7a is fitted into the lock hole 3a at the corresponding position, thereby locking the seat together with the upper rail 4. The position can be locked.

A seat position memory mechanism 10 is attached to such a slide device 1. This memory mechanism 1
0 is - guide rail 11 and this guide rail 1
1, and a locking step 11 of the guide rail 11 that is incorporated into the sliding body 12 so as to be movable back and forth.
It consists of a stopper 13 that locks on the stopper 13, a pressing spring 14 of the stopper 13, and a return spring 15 that constantly pulls and biases the sliding body 12 rearward.

The guide rail 11 is shaped like an elongated rectangular bar, and has a large number of concave locking steps 11a formed at small intervals in the longitudinal direction (front-back direction) on the negative side. The front and rear ends of this guide rail 11 are fitted into the square holes of the mounting frames 16 and 17, and fixed with the fixing pins 18. In this state, the front and rear mounting frames 1
By fixing one end side of 6.17 to the lower rail 3 of the slide device 1, the guide rail 11 is arranged in parallel with the lower rail 3 of the slide device 1 with a gap therebetween.

Note that the front and rear mounting frames 16 and 17 have one end attached to the lower rail 3.
The lower rail 3 is fitted into the front and rear fasteners 2 of the lower rail 3, and is fixed in line with the lower rail 3 so as to be sandwiched between the lower rail 3 and the vehicle floor.

The sliding body 12 has a substantially rectangular parallelepiped shape, and has a sliding square hole 12a that penetrates in the front-rear direction and slides into the shaft 11, and a stopper installation hole 12b that penetrates in both directions at right angles to the sliding square hole 12a. The stopper 13 is slidably installed in this stopper installation hole 12b. This stopper 13 has a slightly oblong plate shape and has a locking hole 13a in the center thereof into which the guide rail 11 fits. During normal times, this stopper 13 is pressed down by a pressing spring 14 from one side of the sliding body 12 (the side opposite to the sliding device), and the locking hole 13a engages with one locking step 11a of the guide rail 11. When the stopper 13 is pushed from the other side (sliding device side) and moves to one side against the pressing spring 14, the locking hole 1
3a is disengaged from the locking stepped portion 11a of the guide rail 11, allowing the sliding body 12 to move back and forth.

As a device that pushes the stopper 13 from the other side,
An arc plate-shaped stopper release protrusion 19 is erected on the ring lock claw side of the lock plate 7 of the slide device 1.

This stopper release protrusion 19 is inserted into the stopper 19 when the lock release operation lever 8 is rotated in the first stage (rotation operation from the slide lock position A in FIG. 3 to the slide lock release position B in FIG. 5). The guide rail 11 is moved by pushing the stopper 13 to one side by the second rotation operation of the lock release operation lever 8 (rotation operation from the slide lock release position B to the position C). The locking step 11 of
a to allow the sliding body 12 to move back and forth.

Further, a tongue-like blocking piece 20 is erected at a portion slightly rearward of the stopper release protrusion 19 of the lock plate 7, and this prevents the rotation of the lock release operation levers 8 B and C from the rear end surface of the sliding body 12. In this position, it abuts from behind and is prevented from moving forward beyond the sliding body 12.

The pressing spring 14 is a plate spring and is attached to one side surface of the sliding body 12 by screwing its rear end.

Also, a return spring 1 pulls and urges the sliding body 12 backward.
Reference numeral 5 denotes a coil spring, the front end of which is secured to an L-shaped spring receiver 21 protruding from the front end of one side of the sliding body 12 with a screw, and the rear end thereof is secured to the rear mounting frame 17. It is provided.

In order to rotate the lock release operation lever 8, either the first stage rotation operation (rotation operation from the position to the position B) or the second stage rotation operation (rotation operation from the position B to the position B) is used. A mounting plate 22 is provided on the upper surface of the upper rail 4 near the front end so that the operator can easily determine whether the rotation operation is from position C to position C.
An elastic body 23 such as rubber is provided through the elastic body 23, and the lock release operation lever 8 is moved to the second stage rotation operation (from position B to position C).
It is designed to improve the sense of moderation when rotating to the position (rotation operation).

The operation of the seat slide device with memory of the first embodiment described above will now be described. First of all, usually Figures 1 and 3
As shown in the figure, the lock release operation lever 8 of the slide device 1 is pulled by the lock spring 9 and is in the lock position A. In this state, the lock claw 7a fits into the lock hole 3a to position and lock the seat together with the upper rail 4. If the lock release operation lever 8 is rotated in the first stage from the position A to the position B against the lock spring 9, the lock plate 7 will be in the state shown by the solid line in FIG. The lock pawl 7a is removed from the lock hole 3a and becomes unlocked. If the seat is pushed rearward in this state, the seat will slide back to the rearmost position together with the upper rail 4, allowing the occupant to get on and off with ease.

At this time, the memory mechanism 10 maintains the original seat position in memory. In other words, even if the lock release operation lever 8 is rotated to the first stage as described above, one stopper release protrusion does not come into contact with the stop flange 13, and the stopper 13 is locked to the lock step 11a of the guide rail 11. The sliding body 12 is held at the same position without moving back and forth.

With this, if the occupant moves the seat that has moved backward as it is to the front after getting on and off, the blocking piece 20 provided on the lock plate 7 will
hits, and further progress is restricted. The seat returns to its original seat position at once, and when the lock release operation lever 8 is released, the lock plate 7 is rotated by the tensile force of the lock spring 9, and the lock pawl 7a is fitted into the original lock hole 3a. As a result, the position is returned to its original locked state, and there is no need to readjust the seat back and forth.

In addition, when it is desired to change or adjust the seat position due to a change of occupants, etc., the lock release operating lever 8 is further rotated from the first stage rotational operation position B to the second stage rotational operation position C. move it.

As a result, the lock plate 7 rotates as shown by the imaginary line in FIG. 5, and the lock claw 7a disengages from the lock hole 3a to become unlocked, and the memory mechanism 10 also releases the memory. In other words, the second rotation of the lock release operation lever 8 causes the stopper release/removal protrusion 19 to push the stopper 13 of the memory mechanism 10 against the spring 14, thereby causing the stopper 13 to lock the idle rail 11. It comes off from the stepped portion 13a and becomes in a state where the sliding body 12 is allowed to move back and forth. In this state, when the seat holder moves forward according to his/her preference, the blocking piece 20 moves the sliding body 1 by the same stroke.
If you push the seat forward and move the seat backward, the blocking piece 2 will move by the same stroke.
0 escapes and the return spring 15 causes the sliding body 12 to move rearward. This will allow you to slide the seat in either direction. This means that you can change and adjust the seat position. Change the seat position [! When the rear lock release operation lever 8 is released, the operation lever 8 is automatically returned to the position A by the lock spring 9, and the lock claw 7a fits into the lock hole 3a to position and lock the seat at the changed position. Stopper 13 of memory mechanism 10
is pushed by the pressing spring 14 and is locked to the locking step portion 11a of the guide rail 11, and the sliding body 12 is positioned at the change position to perform memory retention.

Next, a second embodiment of the present invention will be described with reference to FIGS. 6 to 10. In the drawings, the same reference numerals are used to denote the same components as those shown in FIGS. 1 to 5 of the first embodiment to simplify the explanation.

Here, an example is shown in which a slide device 31 using a rotationally operated lock release operation lever 38 and a memory mechanism 10 are combined, and this memory mechanism 10 itself is the same as that of the previous embodiment. The slide device 31 is a lip groove steel lower rail 3.
3 and a hat-shaped steel upper rail 34 are slidably fitted,
Two front and rear brackets 35 and 36 are welded and fixed to the upper surface of the upper rail 34.
A rotationally operated lock release operation lever 38 is provided in the loop-shaped part of the
The round bar-shaped shaft portion 38a is passed through and rotatably supported. A lock plate 37 is fixed and vertically provided in the middle of the shaft portion 38a, and a pair of front and rear lock claws 37a are bent at the lower end of the lock plate 37, and a twisted lock plate 37 is formed at the rear end of the shaft portion 38a. A lock spring 39, which is a coil spring, is arranged to lock the shaft portion '38a.
The lock pawl 37a is always biased in the direction of fitting into the lock hole 33a of the side wall of the lower rail 33.

When the lock release operation lever 38 is rotated against the lock spring 39, the lock plate 37 rotates together with the shaft portion 38a, and the lock claw 37 at the lower end rotates.
a disengages from the lock hole 33a and enters the unlocked state, and the seat (not shown) mounted and supported on the upper rail 34 can be moved and adjusted forward and backward together with the upper rail 34, and by this adjustment, the seat is placed in the optimal seat position for the seated person. When the lock release operation lever 38 is released when the lock release operation lever 38 is selected, the rotation returns due to the biasing force of the lock spring 39, and the lock pawl 37a fits into the lock hole 33a at the corresponding position to position the seat together with the upper rail 4. It can be locked.

A memory mechanism 10 similar to the embodiment described above is attached to such a slide device 31, and the lock plate 37 of the slide device 31 itself serves as a stopper release means for pushing the stopper 13 of the memory mechanism 10 against the pressing spring 14. The base of the lower end lock pawl 37a of the lock plate 37 pushes and moves the stopper 13 by the second rotation operation of the lock release operation lever 38 shown in FIG. It is designed to be canceled. Also, when the sheet is moved forward, the sliding body 12
A blocking piece 40 that contacts the rear end surface is provided to protrude from the rear end of the lock plate 37.

In the case of this second embodiment as well, either the first stage rotation operation (rotation operation from position A to position B) or the second stage rotation operation (rotation operation from position B) of the lock release operation lever 38 is performed. 6 and 7, the bracket 3 is
6. An elastic body 43 made of rubber or the like is provided on the upper surface of the device via a mounting plate 42, and the blocking piece 40 is connected to the lock release operation lever 3.
This is to provide a sense of moderation during the second stage rotation operation (rotation operation from position B to position C).

Even with the seat slide device with memory having the configuration of the second embodiment, the same effects as those of the first embodiment can be obtained.

Furthermore, a third embodiment of the present invention will be explained with reference to FIGS. 11 to 15. In addition, in the drawings, FIGS. 1 to 5 of the first embodiment are shown.
Components that overlap with those shown in the figures and FIGS. 6 to 10 of the second embodiment are given the same reference numerals to simplify the explanation.

Here, the slide device 31 is similar to the second embodiment, and has a structure using a rotationally operated lock release operation lever 38, and is rotatably provided with a lock plate 37 having a lock claw 37a. However, this lock plate 37 does not have the blocking piece 40 as in the second embodiment.

A seat position memory mechanism 50 is provided for such a slide device 31. The memory mechanism 50 here is basically substantially the same as that in the previous embodiment, and includes one guide rail 51, a sliding body 52 that is slidably fitted on the second guide rail 51 so as to be able to move back and forth, and the second guide rail 51. A stopper 53 that is slidably fitted into the elongated holes 51a on both sides and the hole 52a of the sliding body 52 and is locked to the locking step 51b of the guide rail 51, the presser spring 54 of this stopper 53, and the sliding body 5.
It is comprised of a return spring 55 etc. that always pulls and urges 2 backward.

Here, the guide rail 11 is channel-shaped with a U-shaped cross section, and long holes 51a are formed in the rising plate portions of both sides in the longitudinal direction (back and forth direction).
A plurality of concave locking step portions 51b are cut out at the upper edge of the inverted rising plate portion at intervals in the longitudinal direction. This guide rail 51 is attached to the front and rear mounting frames 16 and 17.
It is fixed to the lower rail 3 of the slide device 31 and arranged in parallel with a space therebetween.

The sliding body 12 has a substantially rectangular parallelepiped shape that slides into the guide rail 51 so as to be movable back and forth, and has a flat stopper mounting hole 52a penetrating it in the left-right direction.

The stopper 53 is a long hole 51a of the guide rail 51.
A plate inserted into the hole 52a of the sliding body 52 through the
Inverted plate-shaped u1 stop portions 53a are erected on both sides of the proximal end, and a blocking piece 53b is integrally formed so as to extend the front half of the distal end. During normal operation, this stopper 53 is pushed in from one side (the side opposite to the slide device) by a presser spring 54 screwed onto the top surface of the slider 52, so that the locking portion 53a engages with the locking stepped portion 51b of the guide rail 51. At the same time, the forward and backward movement of the sliding body 52 is controlled, and conversely, the stopper is controlled by the lock plate 37 as the lock release operation lever 38 of the slide device 1 is rotated to the second stage shown in FIG. 15(c). 53 is pushed from the slide device side and pushed back to one side against the pushing spring 54,
The locking portion 53a is disengaged from the locking step portion 51b of the guide rail 51, allowing the sliding body 52 to move back and forth. In addition, in the first rotation operation of the lock release operation lever 38, that is, the rotation operation from the slide lock position A in FIG. 15(a) to the slide lock release position B in FIG. 15(b), the stopper 53 is It will not be pushed back by the lock plate 37. Further, the lock plate 37 comes into contact with the blocking piece 53b extending from the tip of the stopper 53 from behind when the lock release operating lever 38 is in the rotational positions B and C, and is prevented from moving forward. It is now possible to do so.

The return spring 55 that pulls and biases the sliding body 12 rearward is a coil spring as in the previous embodiment, and its front end is engaged with an L-shaped spring receiver 56 that is screwed onto the upper surface of the sliding body 52 and protrudes. The rear end is fixed to the rear mounting frame 17.

The memory-equipped seat slide device having the configuration of the third embodiment also provides the same effects as those of the first and second embodiments.

In addition, by providing a return spring (not shown) that always urges the seat forward via the upper rails 4 and 34 in the slide device 1° 31 in each of the above embodiments, the seat can be slid back to allow passengers to get on the vehicle. Afterward, by simply operating the lock release operating levers 8 and 38, the seat can automatically move forward and return to the memory position, which is convenient.

〔Effect of the invention〕

Since the present invention is constructed as described above, it can be easily applied to the conventional slide device by making a little modification, and it does not increase the weight or cost.In addition, the present invention can be easily applied to the conventional slide device by slightly modifying the slide device. Even if the seat is moved up to a certain point, the seat can be returned to its original optimal position in one go, and there is no need to readjust the seat every time.A very simple and impractical seat slide device with a memory can be obtained.

[Brief explanation of the drawing]

1 to 5 show a first embodiment of the present invention,
Fig. 1 is a partially omitted perspective view, Fig. 2 is an exploded perspective view, Fig. 3 is a plan view, Fig. 4 is a partially cross-sectional view taken along the line IV-IV in Fig. 3, and Fig. 5 is a partially omitted perspective view. The figure is a plan view showing the operating state, FIGS. 6 to 10 show a second embodiment of the present invention, FIG. 6 is a partially omitted perspective view, and FIG. 7 is an exploded perspective view.
8 is a plan view, FIG. 9 is a partially cross-sectional view taken along the line IX-IX in FIG. Figures 11 to 15 show a third embodiment of the present invention, with Figure 11 being a partially omitted perspective view, Figure 12 being an exploded perspective view, Figure 13 being a plan view, and Figure 14 being an exploded perspective view. 13 is a partially cross-sectional view taken along line X--X in FIG. 13, and FIGS. 15(a), 15(b), and (c) are sectional views showing the operating state, respectively. 1.31...Sliding device, 8.38...Lock release operation lever 10.50...Memory mechanism, 11°51...Guide rail, lla, 51b...Locking step portion, 12. 52...Sliding body, 13.53...Stopper.

Claims (3)

[Claims] (1) A slide device that supports a vehicle seat is configured to allow the seat to move rearward while the seat position is held in memory by operating the first stage of the lock release operation lever, and the lock release operation lever is A seat slide device with a memory, comprising a memory mechanism that releases the memory by a second stage operation and allows the seat to move back and forth. (2) The seat slide device with memory according to claim 1, wherein the lock release operation lever is of a horizontal rotation operation type or a rotation operation type. (3) The memory mechanism includes a guide rail with a large number of locking steps arranged in parallel with the slide device, a sliding body slidably fitted onto the guide rail so as to be able to move back and forth, and a locking step on the guide rail. It is locked to restrict the back and forth movement of the sliding body, and in response to the operation of the second stage of the lock release operation lever of the slide device, it is disengaged from the locking stepped portion of the guide rail and allows the sliding body to move back and forth. 2. The seat slide device with memory according to claim 1, further comprising a stopper for releasing the memory.