JP7216272B2 - Seat storage structure - Google Patents

Description

The present invention relates to a seat storage structure for storing a vehicle seat in a storage recess provided in the floor of a vehicle body.

2. Description of the Related Art There is known a seat storage structure in which a vehicle seat having a seat cushion and a seat back can be stored in a storage recess formed in a floor (for example, Japanese Unexamined Patent Application Publication No. 2002-100003). In the seat storage structure of Patent Document 1, the storage recess is positioned behind the vehicle seat when in use. A vehicle seat is provided with a link member that connects the rear portion of the seat cushion with the floor and functions as a rear leg. One end of the link is connected to the rear portion of the seat cushion so as to be rotatable about the vehicle width direction. Also, the other end of the link is connected to the floor so as to be rotatable about the vehicle width direction. At the time of storage, after the seat back is laid down on the seat surface of the seat cushion and overlapped, one end side and the other end side of the link are rotated. As a result, the vehicle seat is stored in the storage recess with the seat cushion upside down.

Japanese Patent Application Laid-Open No. 2001-328473

In such a seat storage structure, in order to effectively utilize the space in the vehicle compartment, it is desirable to provide the storage recess as close to the vehicle seat as possible. In the vehicle seat disclosed in Patent Document 1, the seat cushion rotates around the other end of the link when stored, and moves rearward in accordance with the length of the link member. Due to the limitation, it is difficult to bring the storage recess close to the vehicle seat in a position where the user can sit. Moreover, if the link member is shortened, the height of the seat cushion from the floor becomes low, which poses a problem that it becomes difficult to sit on the seat.

In view of the above background, the present invention includes a vehicle seat and a storage recess provided on one side in the front-rear direction of the vehicle seat at a position on the floor where the vehicle seat can be seated. To bring a storage recess close to a vehicle seat in a sitting position in a seat storage structure capable of being displaced between a position and a storage position where the seat is stored in the storage recess by being turned upside down from the use position.

In order to solve the above problems, one aspect of the present invention is a seat storage structure (S), which is connected to a floor (3) defining a vehicle compartment (2) via pivot links (12, 112). A vehicle seat (1, 101) including a seat cushion (4, 104) mounted on the floor and a seat cushion (4, 104) formed on the floor in one of the front and rear directions of the vehicle seat in a position where the vehicle seat can be seated. The rotating link has an upper end pivotally supported so as to be slidable forward and backward within a predetermined range with respect to the seat cushion and tiltable forward and backward, and the storage recess. and a lower end pivotally supported so as to be able to tilt back and forth on the edge of the other side in the front-rear direction of the rotatable link. It is characterized in that a restricting means (42, 142) is provided.

According to this aspect, the upper end of the rotary link is coupled to the seat cushion so as to be tiltable back and forth and slidable back and forth, and the lower end is coupled to the floor so as to be tiltable back and forth. As a result, when the seat cushion is tilted in one longitudinal direction around the lower end of the rotary link in order to store the vehicle seat in the storage recess, the upper end of the rotary link slides in the other longitudinal direction of the seat cushion. By moving the seat cushion, the seat cushion can be moved to the lower end side of the rotary link. Due to this movement, when the seat cushion is turned over, the seat cushion is positioned on the other side in the front-rear direction, so that the storage recess can be brought closer to the vehicle seat in the sitting position.

In the above aspect, the seat cushion may be provided with a guide hole (33) extending in the front-rear direction, and a pin (34) passing through the guide hole may be provided at the upper end of the rotating link. .

According to this aspect, the upper end of the rotary link can be coupled to the seat cushion so as to be tiltable back and forth and slidable back and forth.

In the above aspect, the seat cushion may include a pair of left and right side frames (24) extending in the front-rear direction, and the guide holes may be provided in the side frames.

According to this aspect, the side frame forming the seat cushion is provided with the guide hole, and the upper end of the rotating link is coupled to the guide hole. This eliminates the need for a separate member for coupling the rotary link and the seat cushion, thereby simplifying the configuration of the vehicle seat.

In the above aspect, the seat cushion has a pair of front and rear cross frames (25, 26) coupled to the left and right side frames, respectively, and positioned on the other side in the front-rear direction. A support member (11, 111) is provided having an upper end pivotally supported on the cross frame so as to be tiltable back and forth and a lower end detachably connected to the floor, and the upper end of the support member is connected to the side wall. It is preferable that they overlap the frame when viewed from the side.

According to this aspect, the upper end of the support member is pivotally supported on the seat cushion so as to be tiltable back and forth. Accordingly, the support member can be arranged along the back surface of the seat cushion by tilting the support member in one direction in the front-rear direction about the upper end thereof when stored. Therefore, when stored, the front legs do not protrude from the back surface of the seat cushion, and the top surface of the stored vehicle seat can be made flatter. Also, the lower end of the support member is detachably coupled to the floor. Thus, by engaging the support member with the floor, displacement of the seat cushion can be restricted during use, and by releasing the engagement between the support member and the floor, the support member can be tilted during storage. In addition, since the upper end of the support member overlaps the side frame when viewed from the side, the upper end of the support member does not protrude above and below the side frame when viewed from the side, and the thickness of the seat cushion can be reduced.

In the above aspect, the seat cushion has an upper end pivotally supported in the other longitudinal direction of the upper end of the rotating link, and a lower end pivotally supported in the other longitudinal direction edge of the storage recess. and preferably has a biasing means (38, 138) for generating a biasing force in the extension direction.

According to this aspect, the seat cushion is biased away from the floor by the biasing member. Therefore, when the support member and the floor are disengaged, the seat cushion is biased by the biasing member to rotate about the upper end of the pivot link. As a result, the seat cushion can be easily turned over, so that the vehicle seat can be more easily stored in the storage recess.

In the above aspect, the upper end of the biasing means may be pivotally supported on the seat cushion at one of the upper ends of the support member in the front-rear direction.

According to this aspect, the upper end of the biasing means is located on one side of the upper end of the support member in the front-rear direction. The upper end of the support member is coupled to the other cross frame in the front-rear direction, and the upper end of the biasing means is provided on one side of the upper end of the support member in the front-rear direction. Protrusion is prevented. As a result, the occupant can be prevented from colliding with the biasing member, and the design of the vehicle seat can be enhanced.

Further, in the above aspect, the lower end of the biasing means may be pivotally supported on the other edge portion of the storage recess in the front-rear direction at the other front-rear direction lower end of the rotating link.

According to this aspect, the lower end of the biasing member is provided on the other side in the front-rear direction compared to the lower end of the rotating link positioned at the edge portion on the other side in the front-rear direction of the storage recess. As a result, the lower end of the biasing member is prevented from protruding into the storage recess, and the design of the vehicle seat is enhanced.

In the above aspect, the seat cushion may be provided with a viscous and/or elastic damper (55) for suppressing the movement of the pin in the guide hole in the other longitudinal direction.

According to this aspect, the damper is provided to reduce the moving speed of the upper end of the rotating link relative to the seat cushion in the other longitudinal direction. By providing this damper, it is possible to reduce the moving speed of the seat cushion toward the lower end side of the rotating link when the seat cushion is stored. Therefore, the seat cushion is prevented from dropping at a higher speed, and the safety of the seat storage structure is enhanced.

Further, in the above aspect, when the vehicle seat is stored in the storage recess, it is preferable that the rotary link substantially completely overlaps the seat cushion in a side view.

According to this aspect, when the vehicle seat is stored in the storage recess, the rotary link substantially completely overlaps the seat cushion in a side view. As a result, when the vehicle seat is stored in the storage recess, the rotation link can be prevented from protruding from the back surface of the seat cushion, and the upper surface of the vehicle seat stored in the storage recess can be made flatter. can do.

In the above aspect, the lower end of the pivot link may be pivotally supported on the floor via a bracket (36) fixed to the wall defining the recess.

According to this aspect, by providing the bracket, the lower end of the rotating link can be easily pivotally supported on the wall that defines the storage recess.

Further, in the above aspect, the vehicle seat has a seat back (5) pivotally supported at the rear end of the seat cushion so as to be able to tilt forward, and a headrest (6) provided at the upper end of the seat back. , the storage recess may include a portion for storing the headrest.

According to this aspect, the headrest can be stored in the storage recess.

According to one aspect of the present invention, the seat storage structure is a seat storage structure, and includes a vehicle seat including a seat cushion connected via a pivot link to a floor that defines a vehicle compartment, and a seat at a seatable position. A storage recess is formed in the floor in one of the front and rear directions of a certain vehicle seat, and has a storage recess capable of storing the vehicle seat. and a lower end pivotally supported to the edge of the storage recess on the other side in the front-rear direction so as to be able to tilt back and forth. According to the configuration in which the restricting means for selectively restricting the tilting of the rotating link is provided, the upper end of the rotating link is coupled to the seat cushion so as to be able to tilt back and forth and slide back and forth, and the lower end is connected to the seat cushion. It is coupled to the floor so as to be tiltable back and forth. As a result, when the seat cushion is tilted in one longitudinal direction around the lower end of the rotary link in order to store the vehicle seat in the storage recess, the upper end of the rotary link slides in the other longitudinal direction of the seat cushion. By moving the seat cushion, the seat cushion can be moved to the lower end side of the rotary link. Due to this movement, when the seat cushion is turned over, the seat cushion is positioned on the other side in the front-rear direction, so that the storage recess can be brought closer to the vehicle seat in the sitting position.

Further, in the above aspect, according to the configuration in which the seat cushion is provided with the guide hole extending in the front-rear direction, and the pin passing through the guide hole is provided at the upper end of the rotary link, the upper end of the rotary link can be It can be coupled to the seat cushion so as to be tiltable forward and backward and slidable forward and backward.

In the above aspect, the seat cushion includes a pair of left and right side frames extending in the front-rear direction, and the guide holes are provided in the side frames. The upper end of the rear leg is coupled to the guide hole. As a result, a separate member is not required to connect the rear leg and the seat cushion, and the configuration of the vehicle seat is simplified.

In the above aspect, the seat cushion has a pair of front and rear cross frames coupled to the left and right side frames, respectively, and tilts back and forth to the cross frame positioned on the other side in the front-rear direction. A support member is provided having an upper end that is releasably pivoted and a lower end that is detachably connected to the floor, and the upper end of the support member overlaps the side frame when viewed from the side. The upper end is pivotally supported on the seat cushion so as to be tiltable back and forth. Accordingly, the support member can be arranged along the back surface of the seat cushion by tilting the support member in one direction in the front-rear direction about the upper end thereof when stored. Therefore, when stored, the front legs do not protrude from the back surface of the seat cushion, and the top surface of the stored vehicle seat can be made flatter. Also, the lower end of the support member is detachably coupled to the floor. Thus, by engaging the support member with the floor, displacement of the seat cushion can be restricted during use, and by releasing the engagement between the support member and the floor, the support member can be tilted during storage. In addition, since the upper end of the support member overlaps the side frame when viewed from the side, the upper end of the support member does not protrude above and below the side frame when viewed from the side, and the thickness of the seat cushion can be reduced.

Further, in the above aspect, the seat cushion has an upper end pivotally supported at the other front-rear direction upper end of the rotating link, and a lower end pivotally supported at the other front-rear direction edge of the storage recess. According to the configuration having the biasing means that generates the biasing force, the biasing member biases the seat cushion away from the floor. Therefore, when the support member and the floor are disengaged, the seat cushion is biased by the biasing member to rotate about the upper end of the pivot link. As a result, the seat cushion can be easily turned over, so that the vehicle seat can be more easily stored in the storage recess.

In the above aspect, the upper end of the biasing means is pivotally supported on the seat cushion on one side of the upper end of the support member in the front-rear direction. located on one side. The upper end of the support member is coupled to the other cross frame in the front-rear direction, and the upper end of the biasing means is provided on one side of the upper end of the support member in the front-rear direction. Protrusion is prevented. As a result, the occupant can be prevented from colliding with the biasing member, and the design of the vehicle seat can be enhanced.

In the above aspect, the lower end of the biasing means is pivotally supported by the edge portion of the storage recess on the other front-rear direction side at the other front-rear direction lower end of the rotating link. The lower end of the force member is provided on the other side in the front-rear direction compared to the lower end of the rotating link positioned at the edge portion on the other side in the front-rear direction of the accommodation recess. As a result, the lower end of the biasing member is prevented from protruding into the storage recess, and the design of the vehicle seat is enhanced.

In the above aspect, the seat cushion is provided with a viscous and/or elastic damper that suppresses movement of the pin in the guide hole in the other longitudinal direction. A damper is provided to reduce the speed of movement of the cushion in the other fore and aft direction. By providing this damper, it is possible to reduce the moving speed of the seat cushion toward the lower end side of the rotating link when the seat cushion is stored. Therefore, the seat cushion is prevented from dropping at a higher speed, and the safety of the seat storage structure is enhanced.

Further, in the above aspect, when the vehicle seat is stored in the storage recess, the rotary link substantially completely overlaps the seat cushion in a side view. When stored in the storage recess, the pivot link substantially completely overlaps the seat cushion in a side view. As a result, when the vehicle seat is stored in the storage recess, the rotation link can be prevented from protruding from the back surface of the seat cushion, and the upper surface of the vehicle seat stored in the storage recess can be made flatter. can do.

Further, in the above aspect, according to the configuration in which the lower end of the rotating link is pivotally supported on the floor via a bracket fixed to the wall defining the recess for storage, the recess for storage is defined by providing the bracket. The lower end of the pivot link can be easily pivoted on the wall that supports the wall.

In the above aspect, the vehicle seat has a seat back pivotally supported to the rear end of the seat cushion so as to be capable of falling forward, and a headrest provided at the upper end of the seat back, and the storage recess is a portion for storing the headrest. According to the configuration including, the headrest can be stored in the storage recess.

1 is a perspective view of a vehicle seat according to the present invention; FIG. A perspective view of the front legs, rear legs, and seat cushion frame of the right vehicle seat Side view of vehicle seat in position of use FIG. 4 is an explanatory diagram for explaining the displacement of the vehicle seat from the use position to the storage position; FIG. 4 is an explanatory diagram for explaining the displacement of the vehicle seat from the use position to the storage position; FIG. 4 is an explanatory diagram for explaining the displacement of the vehicle seat from the use position to the storage position; FIG. 4 is an explanatory diagram for explaining the displacement of the vehicle seat from the use position to the storage position; Side view of vehicle seat in stowed position Bottom view of the seat cushion of the right vehicle seat Explanatory drawing showing a modification of the vehicle seat Side view showing a modification of the vehicle seat Side view showing a modification of the vehicle seat

A sheet storage structure according to an embodiment of the present invention will be described below with reference to the drawings. Hereinafter, the directions are described with reference to the front-rear, left-right, and up-down directions of the vehicle.

The seat storage structure S is applied to a vehicle seat 1 mounted on an automobile. As shown in FIG. 1, two vehicle seats 1 are arranged side by side in the vehicle width direction, that is, in the left-right direction on a floor 3 that defines the bottom of a vehicle compartment 2 of an automobile. When in use, the vehicle seats 1 constitute rear seats in the second and subsequent rows of the vehicle. Each of the vehicle seats includes a seat cushion 4 that supports the buttocks of a seated person, a seat back 5 that is supported on the rear portion of the seat cushion 4 and functions as a backrest, and a headrest 6 provided on the upper part of each seat back 5. have

In this embodiment, the two vehicle seats 1 arranged in the vehicle width direction have different lengths in the vehicle width direction. The ratio of the length in the vehicle width direction of the left vehicle seat 1 to the length in the vehicle width direction of the right vehicle seat 1 is set to be approximately 4:6. The seat cushion 4 of the left vehicle seat forms a seating surface 9 for two passengers on its upper surface, and the seat cushion 4 of the right vehicle seat forms a seating surface 9 for one passenger on its upper surface. there is

The seat cushions 4 are connected to the floor 3 via front legs 11 (support members) and rear legs 12 (rotary links). The front legs 11 are connected to the front portion of the lower surface of the seat cushion 4 , and the rear legs 12 are connected to the rear portion of the lower surface of the seat cushion 4 . The vehicle seat 1 on the left side is provided with a pair of front legs 11 and a pair of rear legs 12 on the left and right sides. The vehicle seat 1 on the right side is provided with one front leg 11 and a pair of right and left rear legs 12 . As shown in FIG. 2, in the vehicle seat 1 on the right side, the front leg 11 is the front portion of the seat cushion 4 and is coupled to the substantially central portion in the left-right direction. The left rear leg 12 is the rear part of the seat cushion 4 and is connected to the left side, and the right rear leg 12 is the rear part of the seat cushion 4 and is connected to the right side.

As shown in FIG. 1, the seat back 5 extends vertically and has a substantially rectangular parallelepiped shape with a surface facing substantially in the front-rear direction. A support surface 14 for supporting the back of the seated person is formed on the front surface of the seat back 5 . The seat back 5 is rotatably supported at its lower end to the rear end of the seat cushion 4 via a known reclining mechanism. That is, the seat back 5 is coupled at its lower end to the rear end of the seat cushion 4 so as to be capable of falling forward and backward.

Two headrests 6 are provided side by side on the upper end of the seat back 5 on the left vehicle seat 1 . One headrest 6 is provided at the upper end of the seat back 5 in the vehicle seat 1 on the right side. The headrests 6 are preferably coupled to the seatback 5 so as to be slidable in the substantially vertical direction.

The floor 3 is provided with a storage recess 15 recessed downward at the rear portion of the vehicle seat 1 when in use. The storage recess 15 has a substantially rectangular shape extending in the vehicle width direction when viewed from above, and is defined by a bottom wall 16, a front wall 17, a rear wall 18, and left and right walls. As shown in FIG. 2, the lower end of the front wall 17 may be formed with a stepped portion 17A protruding rearward.

The seat storage structure S includes a vehicle seat 1 and a storage recess 15, and has a function of storing the vehicle seat 1 in the storage recess 15 as required. More specifically, the seat storage structure S allows the vehicle seat 1 to be placed in a use position (see FIG. 3) and a storage position (see FIG. 3) where the seat cushion 4, the seat back 5 and the headrest 6 are stored in the storage recess 15 (see FIG. 3). 8) can be selectively displaced. In this embodiment, the vehicle seat 1 is displaced from the use position to the storage position when an operation strap 19 (see FIG. 1) provided on the underside of the seat cushion 4 is pulled outward from the vehicle seat 1. is configured to be performed on

As shown in FIG. 3, when the vehicle seat 1 is in the use position, the seating surface 9 of the seat cushion 4 faces upward to support the buttocks of the occupant, and the support surface 14 of the seat back 5 faces the back of the occupant. It faces approximately forward to support the As shown in FIG. 8, when the vehicle seat 1 is in the storage position, the seat back 5 is rotated rearward by approximately 90 degrees from when it is in the use position. Thereby, the support surface 14 faces upwards. The seat cushion 4 is rotated rearward by approximately 180 degrees and turned upside down from the use position. Thereby, the seating surface 9 faces downward. The seat back 5 is positioned below the seat cushion 4, and the seat back 5 and the seat cushion 4 overlap vertically. At this time, the support surface 14 and the seating surface 9 face each other vertically.

Next, the sheet storage structure S will be described in more detail. Since the left vehicle seat 1 has substantially the same structure as the right vehicle seat 1, the right vehicle seat 1 will be described below with reference to FIGS. Hereinafter, directions will be described with reference to when the vehicle seat 1 is in the use position.

The seat cushion 4 has a seat cushion frame 20 as a skeleton, a pad member supported by the seat cushion frame 20, and a skin member provided on the surface of the pad member and forming the outer surface of the seat cushion 4.

As shown in FIG. 2, the seat cushion frame 20 forms the skeleton of the seat cushion 4, and includes a seat cushion frame portion 21 having a substantially rectangular frame shape, and a pan disposed inside the seat cushion frame portion 21. a frame 22; The seat cushion frame portion 21 includes a pair of left and right side frames 24, and a front frame 25 and a rear frame 26 extending left and right and coupled to the left and right side frames 24, respectively. The front frame 25 and the rear frame 26 correspond to cross frames connecting the left and right side frames 24, respectively. Both ends of the front frame 25 are connected to the front portions of the left and right side frames 24 , and both ends of the rear frame 26 are connected to the rear portions of the left and right side frames 24 , respectively. The front frame 25 and the rear frame 26 are arranged so as to form a pair in the front-rear direction. In this embodiment, the pan frame 22 has a plate-like bracket 22A that connects the upper portions of the front frame 25 and the left and right side frames 24, a front end hooked to the bracket 22A, and a rear end coupled to the rear frame 26. It is formed by the wire 22B. However, the pan frame 22 is not limited to this configuration. You may be comprised by a wire.

The front frame 25 is formed of a metal pipe member, and is fixed to the side frames 24 at both left and right ends by welding. A bracket 28 is welded to the rear side surface of the front frame 25 at the substantially central portion in the left-right direction. The bracket 28 is a bent sheet metal member, and has a substantially U-shape opening upward when viewed from the front.

The front leg 11 has a substantially rectangular shape when viewed from the side, and is arranged to extend vertically when the vehicle seat 1 is in the use position. As shown in FIG. 2, in this embodiment, the front leg 11 includes a pair of left and right metal plate members. The front leg 11 is coupled to the bracket 28 at one end (upper end) in the extending direction. More specifically, the lower end portion of the bracket 28 is provided with a rotation shaft 29 that can rotate around an axis extending in the vehicle width direction. The upper ends of the front legs 11, that is, the upper ends of the left and right plate members are coupled to the pivot shafts 29, respectively. As a result, one end (upper end) of the front leg 11 is pivotally supported to the seat cushion frame 20 so as to be rotatable about an axis extending in the vehicle width direction, that is, to be tiltable forward and backward.

As shown in FIGS. 1 and 2, a front latch 30 is provided at the other end (lower end) of the front leg 11 . In this embodiment, the front latch 30 is provided between the left and right plate members forming the front leg 11, and is coupled to the left and right plate members at both left and right sides thereof. A front striker 31 is fixed to the floor 3 at a position corresponding to the lower end of the front leg 11 when the vehicle seat 1 is in the use position. The front latch 30 can be engaged with and disengaged from the front striker 31 , so that the other end (lower end) of the front leg 11 can be engaged with and disengaged from the floor 3 .

As shown in FIG. 2 , the left and right rear legs 12 are provided symmetrically on both left and right sides of the vehicle seat 1 . The left and right rear legs 12 are metal members, each having a plate shape with a main surface facing the vehicle width direction. The left and right rear legs 12 each have a substantially rectangular shape when viewed from the side, and are arranged to extend substantially vertically when the vehicle seat 1 is in the use position. Each of the left and right rear legs 12 is coupled to the side frame 24 at one end (upper end) in the extending direction. More specifically, as shown in FIG. 2, each of the left and right side frames 24 is made of a sheet metal member, and has a plate-shaped main portion 24A having a main surface facing the vehicle width direction and extending in the front-rear direction. . Each main portion 24A of the side frame 24 is provided with an elongated guide hole 33 that penetrates in the vehicle width direction and extends in the extension direction (front-rear direction). One end (upper end) of each rear leg 12 is fixed to a pin 34 passing through a guide hole 33 thereof. The pin 34 is slidable along the extending direction of the guide hole 33 and is rotatably supported by the side frame 24 about an axis extending in the vehicle width direction. As a result, the upper ends of the rear legs 12 are slidable forward and backward with respect to the side frames 24 within a predetermined range (the range in which the guide holes 33 are formed) and rotate about the axis extending in the vehicle width direction. possible, that is, it is pivotally supported so that it can be tilted back and forth. Further, in this embodiment, the side frame 24 is provided with a bent portion 24B that is bent toward the inside of the vehicle seat 1 along the edge of the main portion 24A in order to increase the rigidity thereof.

As shown in FIG. 3, the upper ends of the front legs 11 and the side frames 24 overlap each other when viewed from the side. As a result, the upper ends of the front legs 11 do not protrude above and below the side frames 24 when viewed from the side. Therefore, the bracket 28 can be configured to overlap the side frame 24 in a side view, and the thickness of the seat cushion 4 can be reduced. More specifically, in this embodiment, the rotary shaft 29 is provided at a position overlapping the guide hole 33 in a side view.

As shown in FIGS. 2 and 3 , a bracket 36 is fixed to the front edge of the storage recess 15 . The bracket 36 extends rearward along the bottom wall 16 from a vertical portion 36A coupled to the wall surface of the front wall 17, more specifically, the rear surface of the stepped portion 17A, and the lower end of the vertical portion 36A and coupled to the bottom wall 16. It has a horizontal portion 36B and a pair of left and right side wall portions 36C extending rearward and upward from left and right side portions of the vertical portion 36A. In this embodiment, the bracket 36 is formed by welding a sheet metal member forming the vertical portion 36A and the horizontal portion 36B and two sheet metal members forming the side wall portions 36C.

As shown in FIG. 2, each of the rear legs 12 is pivotally supported at its other end (lower end) in the extending direction on the corresponding side wall portion 36C so as to be rotatable about the axis in the vehicle width direction, that is, tiltable forward and backward. ing. By providing the bracket 36 at the front edge of the storage recess 15 in this way, the lower end of the rear leg 12 can be easily pivotally supported on the front edge of the storage recess 15 .

A gas damper 38 is provided between the side frame 24 and the bracket 36 . The gas damper 38 includes a cylindrical main body portion 38A that extends substantially vertically, and a pair of arm portions 38B that extend in opposite directions along the extending direction from both end faces in the extending direction of the main body portion 38A. there is The gas damper 38 functions as an urging means that generates an urging force in a direction extending along its extension direction, that is, in an extension direction. The gas damper 38 is configured such that when a force greater than or equal to a predetermined value is applied in the compression direction, the arm portion 38B is housed inside the main body portion 38A, thereby shortening the length in the extending direction in accordance with the force. I hope you are. An end portion of the arm portion 38B on one side (upper side) is rotatably supported on a substantially central portion of the left side frame 24 in the front-rear direction about the vehicle width direction as an axis. The end of the arm portion 38B on the other side (lower side) is the side wall portion 36C on the left side of the bracket 36, and is located in front of the connecting portion (lower end of the rear leg 12) between the rear leg 12 and the side wall portion 36C in the vehicle width direction. is rotatably pivoted about an axis. As a result, one end (upper end) of the gas damper 38 is rotatably pivoted about the center of the side frame 24, that is, behind the upper end of the front leg 11 and in front of the upper end of the rear leg 12. . At this time, the other end (lower end) of the gas damper 38 is the front edge portion of the storage recess 15 and is rotatably supported forward of the lower end of the rear leg 12 about the vehicle width direction. Although the gas damper 38 is coupled to the left side frame 24 and the left side wall portion 36C in this embodiment, the gas damper 38 may be coupled to the right side frame 24 and the right side wall portion 36C.

The right rear leg 12 is provided with a rear latch 40 substantially at the center in the extending direction. A rear striker 41 extending toward the rear latch 40 is coupled to the upper end of the front wall 17 of the storage recess 15 . The rear latch 40 and the rear striker 41 are detachable from each other, and the engagement between the rear latch 40 and the rear striker 41 restricts rearward tilting of the rear leg 12 about the lower end thereof. That is, between the rear leg 12 and the floor 3, the rear latch 40 and the rear striker 41 constitute restricting means 42 for selectively restricting the rearward tilting of the rear leg 12. As shown in FIG. In this embodiment, the restricting means 42 for restricting the rearward tilting of the rear leg 12 is composed of the rear latch 40 and the rear striker 41, but the restricting means 42 is not limited to this and can be changed as appropriate.

As shown in FIG. 9, the lower surface (rear surface) of the seat cushion 4 is provided with one front leg accommodation recess 45 and a pair of left and right rear leg accommodation recesses 46 . The front leg accommodation recess 45 is a recess that is recessed upward, and is provided substantially in the center of the seat cushion 4 in the left-right direction. The lower end of the bracket 28 protrudes downward from the bottom surface (upper surface) of the front leg housing recess 45 at the front portion of the front leg housing recess 45 . The front leg accommodation recess 45 extends rearward from the front side of the lower end of the bracket 28 and reaches substantially the center of the seat cushion 4 . The rear leg accommodation recesses 46 are recesses that are recessed upward, and are provided at positions vertically aligned with the side frames 24 . Each of the rear leg accommodation recesses 46 extends from the front portion of the seat cushion 4 to its rear edge. The guide hole 33 is positioned inside the rear leg accommodation recess 46 when viewed from above. The lower portions of both side frames 24 protrude downward from the bottom surface (upper surface) of the rear leg housing recess 46 , and the guide holes 33 are exposed inside the rear leg housing recess 46 . The lower portions of both side frames 24 including the guide holes 33 and the upper ends of the rear legs 12 are accommodated inside rear leg accommodation recesses 46, respectively.

Next, the operation of the sheet storage structure S will be described with reference to FIGS. 3 to 8. FIG. When the vehicle seat 1 is in the use position, the seat back 5 pivots forward about its lower end (arrow in FIG. 3) when the operating strap 19 (FIG. 1) is pulled outwardly. As a result, the seat back 5 is folded forward and overlapped with the upper side of the seat cushion 4 (two-dot chain line in FIG. 3). Further, when the seat back 5 is tilted forward, the headrest 6 is also tilted forward together with the seat back 5 and superimposed on the seat cushion 4 together with the seat back 5 . Hereinafter, the seat cushion 4, the seat back 5 and the headrest 6 that are superimposed are referred to as a folding seat 50 (see FIG. 4).

After that, the engagement between the front latch 30 and the front striker 31 is released. As a result, as shown in FIG. 4, the substantially central portion of the folding seat 50 in the front-rear direction is urged by the gas damper 38 in a direction away from the floor 3, that is, upward. The biasing force of the gas damper 38 causes the folding seat 50 to rotate around the upper end of the rear leg 12, and the front end of the folding seat 50 is lifted upward (arrow in FIG. 4). That is, the rear legs 12 function as pivot links for rotating the folding seat 50 . Further, as shown in FIG. 3, the front leg 11 is interposed between the seat cushion 4 and the floor 3 and functions as a support member for supporting the seat cushion 4 when the passenger is seated.

When the front end of the folding sheet 50 is lifted upward, the folding sheet 50 slides obliquely rearward according to gravity as shown in FIG. At this time, the front leg 11 rotates toward the lower surface (rear surface) of the seat cushion 4 around the upper end of the seat cushion 4 .

When the front end of the folding seat 50 is further lifted upward by the gas damper 38, as shown in FIG. 6, the folding seat 50 assumes a posture rotated rearward by approximately 90 degrees from the position shown in FIG. At this time, the folding seat 50 slides against the upper ends of the rear legs 12 due to gravity and moves toward the lower ends of the rear legs 12, that is, downward. As a result, the gas damper 38 is compressed and its overall length becomes shorter than that shown in FIG. 3 (when the vehicle seat 1 is in the use position).

Next, the engagement between the rear latch 40 and the rear striker 41 is released. When the rear latch 40 and the rear striker 41 are disengaged, the rear leg 12 rotates rearward about its lower end as shown in FIG. As a result, as shown in FIG. 8, the folding sheet 50 is turned upside down and stored in the storage recess 15 . At this time, the vehicle seat 1 is in the storage position.

When the vehicle seat 1 is in the storage position, the seat cushion 4, the seat back 5, and the headrest 6 are stored in the storage recess 15 in an overlapping state. That is, the storage recess 15 includes portions for storing the seat cushion 4, the seat back 5, and the headrest 6, respectively, and is configured so that the seat cushion 4, the seat back 5, and the headrest 6 can be stored.

Further, when the vehicle seat 1 is in the retracted position, the front legs 11 are rotated approximately 90 degrees toward the seat cushion 4 around their upper ends and are generally accommodated in the front leg accommodation recesses 45 . The rear legs 12 rotate rearward by about 90 degrees around their lower ends, and are generally accommodated in the rear leg accommodation recesses 46 together with the side wall portions 36C of the brackets 36. As shown in FIG. At this time, the gas damper 38 is also generally housed in the rear leg housing recess 46 on the left side. As a result, as shown in FIG. 8, the front legs 11, the rear legs 12, and the gas dampers 38 are in a state in which the front legs 11, the rear legs 12, and the gas dampers 38 are substantially completely overlapped with the seat cushion 4 in a side view, that is, in a state in which they are substantially overlapped in the side view. ing. Accordingly, when the vehicle seat 1 is stored in the storage recess 15, the front leg 11, the rear leg 12 and the gas damper 38 can be prevented from protruding upward from the back surface of the seat cushion 4. FIG. By preventing the front leg 11, the rear leg 12, and the gas damper 38 from protruding, the upper surface of the vehicle seat 1 stored in the storage recess 15 can be made flatter.

When the vehicle seat 1 is in the storage position, the gas damper 38 biases the folding seat 50 rearward (in the direction of the arrow in FIG. 8). Due to this urging force, the folding sheet 50 is pressed against the rear wall 18 of the storage recess 15 and frictionally locked. This prevents the folding sheet 50 from rattling.

To displace the vehicle seat 1 from the storage position to the use position, first, the rear end of the folding seat 50 is lifted and the folding seat 50 is rotated forward by about 90 degrees. After that, the rear latch 40 and the rear striker 41 are engaged. Further, the folding seat 50 is pulled forward and upward, and is rotated forward by approximately 90 degrees while being slid upward relative to the upper ends of the rear legs 12 . The front latch 30 and front striker 31 are then engaged to couple the front leg 11 to the floor 3 . As a result, the seating surface 9 of the seat cushion 4 faces upward. After that, the seat back 5 is rotated backward until the support surface 14 faces forward. As a result, the vehicle seat 1 is in the use position.

Next, the effect of the sheet storage structure S will be described. As shown in FIG. 6, the upper ends of the rear legs 12 are coupled to the seat cushion 4 so as to be slidable forward and backward. can be moved to the lower end side of the This movement reduces the turning radius of the folding seat 50 compared to when the upper ends of the rear legs 12 are not slidably coupled to the seat cushion 4 . Thus, when the folding seat 50 is inverted, its position is forward than it would be if it were not slidably coupled. This makes it possible to provide the storage recess 15 further forward.

Each rear leg 12 is fixed at its upper end to a pin 34 passing through a guide hole 33 provided in the side frame 24 . As a result, the upper ends of the rear legs can be coupled to the seat cushion 4 so as to be rotatable (that is, tiltable forward and backward) about the vehicle width direction and slidable forward and backward. Further, since the side frames 24 are provided with the guide holes 33, a separate member is not required to connect the rear leg 12 and the seat cushion 4, and the vehicle seat 1 can be configured simply.

When the vehicle seat 1 is stowed, the rear legs 12 rotate about their lower ends as shown in FIGS. 5 to 8 and are housed in the rear leg housing recesses 46 as shown in FIG. When the vehicle seat 1 is stowed, the front leg 11 rotates about its upper end as shown in FIGS. 5 to 8 and is housed in the front leg housing recess 45 as shown in FIG. Thereby, when the vehicle seat 1 is in the storage position, the front legs 11 and the rear legs 12 do not protrude from the back surface of the seat cushion 4, and the upper surface of the vehicle seat 1 in the storage position can be made flatter. .

Further, front latch 30 and front striker 31 allow front leg 11 to engage and disengage from floor 3 at its lower end. When the vehicle seat 1 is in the use position, the movement of the seat cushion 4 can be restricted by engaging the front latch 30 and the front striker 31 . When displacing the vehicle seat 1 from the use position to the storage position, the vehicle seat 1 can be stored by releasing the engagement between the lower end of the front leg 11 and the floor 3 .

When the engagement between the lower end of the front leg 11 and the floor 3 is released, the gas damper 38 urges the seat cushion 4 upward, in a direction away from the floor 3, as shown in FIG. As a result, the folding seat 50 rotates around the upper ends of the rear legs 12, and the vehicle seat 1 is reversed and stored. By providing the gas damper 38 in this manner, the vehicle seat 1 can be more easily stored in the storage recess 15 without lifting the seat cushion 4 .

Further, when the vehicle seat 1 is in the use position, the upper end of the gas damper 38 is positioned behind the upper end of the front leg 11, so the upper end of the gas damper 38 does not protrude forward of the upper end of the front leg 11.例文帳に追加This makes it difficult for the feet of the seated person to hit the gas damper 38 . Therefore, the legs of the seated person can be protected, and deformation of the gas damper 38 can be prevented. Further, since the lower end of the gas damper 38 is positioned in front of the lower end of the rear leg 12 , it does not protrude behind the lower end of the rear leg 12 . This makes it easier to arrange objects behind the vehicle seat 1 and enhances the design of the vehicle seat 1 .

Although the specific embodiments have been described above, the present invention is not limited to the above embodiments and can be widely modified. For example, as shown in FIG. 10A, the seat cushion 4 may be provided with a damper 55 that suppresses forward movement of the pin 34 inside the guide hole 33 . The damper 55 may be a viscous damper, an elastic damper or a viscoelastic damper and serves to reduce the forward movement speed of the seat cushion 4 at the upper end of the rear leg 12 . The provision of the damper 55 reduces the movement speed of the seat cushion 4 when it moves toward the lower end side of the rear leg 12 , that is, toward the floor 3 . As a result, the falling speed of the folding sheet 50 as shown in FIG. 6, for example, is reduced, so that sudden dropping of the folding sheet 50 can be prevented and the safety of the sheet storage structure S can be enhanced.

Further, in order to prevent the seat cushion 4 from wobbling when the vehicle seat 1 is in the use position, a lock for restricting the forward movement of the pin 34 when the pin 34 is located at the rear end of the side frame 24 is provided. A means 60 (FIG. 10(A)) may be provided. Further, by providing an extension portion 62 (FIG. 10B) extending upward from the rear end of the guide hole 33 and fitting the pin 34 into the extension portion 62, the seat cushion 4 is prevented from wobbling. can be prevented.

In the above embodiment, the seat cushion 4 is connected to the floor 3 by the front legs 11 and the rear legs 12, but is not limited to this aspect. For example, as shown in FIG. 11, the seat cushion 4 may be connected to the floor 3 only by the rear legs. However, it is preferable that the floor 3 is provided with a lock mechanism 70 for engaging and disengaging the seat cushion 4 so that the seat cushion 4 is not rotated backward by the biasing force from the gas damper 38 .

In the above-described embodiment, the storage recess 15 is provided behind the vehicle seat 1 in the sitting position, but it is not limited to this aspect. The storage recess 15 may be provided on one side in the front-rear direction of the vehicle seat 1 at the sitting position. good too. At this time, as shown in FIG. 12, the front legs 111 (pivot links) are pivotally supported to the seat cushion 104 so as to be slidable and tiltable forward and backward within a predetermined range. A restricting means 142 is provided between the front leg 111 and the floor 3 for selectively restricting tilting of the front leg 111 . Just do it. At this time, it is preferable that a pin 34 is provided on the upper end of the front leg 111 and a pin 34 passing through the guide hole 33 is provided on the side frame 24 as in the above embodiment.

At this time, the rear leg 112 (supporting member) is pivotally supported at its upper end on the rear frame 26 so as to be capable of tilting in the front-rear direction, and is detachably coupled to the floor 3 at its lower end. It is good if they overlap visually. As in the above-described embodiment, between the seat cushion 104 and the floor 3 are the upper end that is pivotally supported behind the upper end of the front leg 111 (the other in the front-rear direction) and the rear end of the storage recess 115 that is pivotally supported. It is preferable that a gas damper 138 (biasing means) is provided which has a curved lower end and generates a biasing force in the extension direction. At this time, the upper end of the gas damper 138 is pivotally supported on the seat cushion 104 in front of the upper end of the rear leg 112, and the lower end of the gas damper 138 is pivotally supported on the front edge of the storage recess 115 behind the lower end of the front leg 111. Good.

1: Vehicle seat 3: Floor 4: Seat cushion 5: Seat back 6: Headrest 11: Front leg (support member)
12: Hind leg (rotary link)
15: Storage recess 24: Side frame 25: Front frame (cross frame)
26: Rear frame (cross frame)
33: Guide hole 34: Pin 36: Bracket 38: Gas damper (biasing means)
42: Regulating Means 55: Elastic Damper 101: Vehicle Seat 104: Seat Cushion 111: Front Leg (Rotating Link)
112: Hind leg (supporting member)
115: storage recess 138: gas damper (biasing means)
142: Regulating means S: Seat storage structure

Claims (11)

a vehicle seat including a seat cushion connected via a pivot link to a floor defining a vehicle compartment;
a storage recess formed in the floor on one side in the front-to-rear direction of the vehicle seat in the seating position and capable of storing the vehicle seat in a state in which the seat cushion is inverted from the seating position; has
The rotating link has an upper end pivotally supported to be slidable forward and backward within a predetermined range with respect to the seat cushion and tiltable forward and backward, and a lower end pivotally supported to be tiltable in the storage recess. death,
a restricting means for selectively restricting tilting of the rotating link is provided between the rotating link and the floor ;
a support member that is positioned on the other side in the front-rear direction with respect to the pivot link when the vehicle seat is in a position where the vehicle seat can be seated, and that can be engaged with and disengaged from the floor;
biasing means for biasing upward the other side in the front-rear direction of the seat cushion of the vehicle seat in the seatable position;
When the support member is disengaged from the floor, the seat cushion is urged by the urging means to rotate about the upper end of the rotating link in a direction in which the other side in the front-rear direction is lifted. and the seat cushion is slidable relative to the pivot link to approach the lower end of the pivot link . The biasing means generates a biasing force in the extension direction and is configured to be extendable,
the upper end of the biasing means is pivotally supported on the seat cushion;
a lower end of the biasing means is pivotally supported in the housing recess;
2. A seat according to claim 1, wherein said biasing means is contracted by said seat cushion sliding relative to said pivot link when said support member and said floor are disengaged. storage structure. After the engagement between the support member and the floor is released and the seat cushion slides on the rotating link and approaches the lower end of the rotating link, the restriction by the restricting means is released. The seat storage structure according to claim 1 or 2, characterized by: The seat cushion is provided with a guide hole extending in the front-rear direction,
The sheet storage structure according to any one of claims 1 to 3 , wherein a pin passing through the guide hole is provided at the upper end of the rotating link. When the vehicle seat is accommodated in the accommodation recess, the upper end of the rotating link is positioned on one side in the front-rear direction from the center of the guide hole in the front-rear direction in a side view. 5. The seat storage structure according to claim 4. an upper end of the support member is pivotally supported on the seat cushion so as to be tiltable forward and backward;
6. The sheet storage structure according to claim 4, wherein the pivot shaft of the support member overlaps the guide hole when viewed from the side. The back surface of the seat cushion is provided with a rotary link recess that accommodates the rotary link when the vehicle seat is accommodated in the storage recess, and the guide hole is exposed inside the rotary link recess. The seat storage structure according to any one of claims 4 to 6, characterized in that the seat storage structure is 8. The seat cushion is provided with a viscous and/or elastic damper that suppresses movement of the pin in the guide hole in the other longitudinal direction . A seat storage structure according to clause 1 . Claims 1 to 8 , characterized in that, when the vehicle seat is stored in the storage recess, the rotating link substantially completely overlaps the seat cushion in a side view. The seat storage structure according to any one of . The lower end of the pivot link is pivotally supported on the floor via a bracket fixed to the wall defining the storage recess. Seat storage structure as described. The vehicle seat has a seat back pivotally supported to the rear end of the seat cushion so as to be capable of falling forward, and a headrest provided at the upper end of the seat back, and the storage recess includes a portion for storing the headrest. The seat storage structure according to any one of claims 1 to 10 , characterized in that:

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