JPH11115577A - Vehicular folding seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the play of a seat at the hand-standingly storing time and also remove it from a vehicular floor, in a vehicular folding seat which can change its storing position. SOLUTION: A vehicular folding seat is designed to support the side of the wall side of a car body in a seat cushion 10a turnably in a vertical direction on a vehicular floor through a support mechanism 20 and stored while hand- standing the seat cushion 10a to the wall side of the car body integrally with a seat back 10b hand-stood thereon. The support mechanism 20 is provided with a slide rail 20a fixed on the floor separatably, a lock mechanism 20c by which the upper rail 21b of the slide rail 20a is fixed to a lower rail releasably and a hinge bracket 20b erected on the upper rail. The side of the seat cushion 10a is fixed and supported to the movable side bracket 22b of the hinge bracket 20b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a folding seat for a vehicle, and more particularly, to a folding seat for a vehicle, comprising a seat cushion and a seat back having a lower end attached to a rear end of the seat cushion so as to be rotatable in the front-rear direction. The present invention relates to a vehicle foldable seat having a configuration in which a seat cushion is integrated with a seat back on which the seat cushion is laid down on the wall side of a vehicle body and stored.

[0002]

2. Description of the Related Art As one type of a foldable seat for a vehicle, as shown in Japanese Patent Application Laid-Open No. 61-81829, a seat cushion and a lower end portion at the rear end portion of the seat cushion are rotated in the front-rear direction. Equipped with a seat back that is capable of being assembled, and supports a side portion of the seat cushion on the vehicle body wall side via a support mechanism so as to be vertically rotatable on the vehicle floor,
2. Description of the Related Art There is a folding seat for a vehicle in which a seat cushion is configured to be inverted and stored on a wall side of a vehicle body integrally with a seat back on which the seat cushion is folded.

[0003] In the vehicle foldable seat, a slide rail is employed as a support mechanism, and a seat cushion can be stowed on the wall side of the vehicle body together with a seat back which is laid down thereon, so that the seat cushion can be stored. At the same time, the storage position can be changed by moving the slide rail back and forth.

[0004]

By the way, in the folding seat for a vehicle, the upper rail and the lower rail constituting the slide rail are unlocked when the folding seat is turned upside down on the wall side of the vehicle body. In the inverted storage state, the upper rail slides in the front-rear direction due to the vibration of the vehicle or the like, causing play. In addition, since the vehicle foldable sheet cannot be detached from the vehicle floor, it cannot be detached from the vehicle floor and the vehicle floor is largely opened to be used effectively. Accordingly, it is an object of the present invention to address these problems.

[0005]

According to the present invention, there is provided a seat cushion, and a seat back having a lower end mounted to a rear end of the seat cushion so as to be rotatable in the front-rear direction. The seat cushion is supported on the vehicle floor via a support mechanism so as to be rotatable in the vertical direction, and the seat cushion is turned upside down on the wall side of the vehicle body integrally with the seat back which is turned down on the seat cushion. The present invention relates to a folding seat for a vehicle having a configuration for storing the information. The configuration is as follows.

That is, the present invention relates to the above-mentioned folding seat for a vehicle, wherein the support mechanism comprises a slide rail, a lock mechanism for fixing the front and rear ends of the slide rail to the vehicle floor so as to be detachable, and the slide mechanism. A lock mechanism for releasably fixing the upper rail constituting the rail to the lower rail, and a hinge bracket erected on the upper rail, and the side of the seat cushion is fixed to a movable bracket of the hinge bracket. It is characterized by having done.

[0007] In the folding seat for a vehicle according to the present invention, the support mechanism is arranged on a side of the tire floor on the vehicle floor, and the seat is stored at a position avoiding the tire house. Is preferable.

[0008]

In the vehicle foldable seat supported on the vehicle floor having such a configuration, the position of the foldable seat can be adjusted in the front-rear direction along the slide rail, and the hinge pin of the hinge bracket provided on the slide rail is turned. As the center of movement, the seat cushion can be retracted and stored on the wall side of the vehicle body integrally with the seat back on which the seat cushion has fallen. Further, the seat in the inverted state can be moved in the front-back direction to change the storage position.

However, in the folding seat for a vehicle, since the slide rail constituting the support mechanism is provided with the lock mechanism for releasably fixing the upper rail to the lower rail, the slide rail is in the retracted state of the seat. Also, the upper rail can always be fixed to the lower rail, thereby preventing backlash when the seat is stored.

[0010] In addition, since the vehicle foldable seat is provided with a lock mechanism for releasably fixing the front and rear ends of the slide rails constituting the support mechanism to the vehicle floor, the seat cushion is placed above it. The seat can be detached from the vehicle floor integrally with the seat back that has been folded down, so that when the vehicle folding seat is not in use, the seat can be removed from the vehicle floor and the vehicle floor can be widely opened to be effective It is possible to achieve the utilization and to completely prevent the cover from being attached to the side window.

In the folding seat for a vehicle, if the support mechanism is disposed on the vehicle floor on the side of the tire house and the seat is stored at a position avoiding the tire house, The dead space at the time of storage can be reduced, and a view obliquely behind the vehicle can be secured.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIGS. 1 to 4 show a folding seat for a vehicle according to an example of the present invention. The seat includes a seat cushion 10a, a seat back 10b, a headrest 10
c, and a leg 10d, and is supported on the vehicle floor by a support mechanism 20 on the lower right side.

In the seat, the seat back 10b
At its lower end, it is attached to the rear end of the seat cushion 10a by a hinge mechanism (not shown) so as to be rotatable in the front-rear direction, and stands upright so that it can fall down on the seat cushion 10a.

The leg 10d has a predetermined length extending in the front-rear direction, and has an upper end mounted in a recess provided on the lower surface of the seat cushion 10a so as to be rotatable in the left-right direction. In the leg 10d, a lock arm 11, which is detachably hooked to a front hook member (not shown) provided on the vehicle floor at the tip end, is supported at an intermediate portion so as to be vertically rotatable, and At the rear end, a lock mechanism 12 for the leg 10d is attached.

The lock arm 11 is formed at its lower end with a hook portion 11a which removably engages with the engaging member. The lock mechanism 12 has the same configuration as the conventional lock mechanism, and is configured such that the lock plate is detached from the locking member provided on the vehicle floor by the turning operation of the operation lever 12a. The operating lever 12a and the lock arm 11 are connected to each other by a connecting arm 12b, and an operating cable 12c is connected to the connecting arm 12b.

In the seat, the seat cushion 10a can be stored in an upright position on the wall side of the vehicle body together with the seat back 10b, which is lowered on the upper surface thereof, by the action of a support mechanism 20 described later. Since the portion 10d and the hinge bracket 20b constituting the support mechanism 20 are connected by the link 13, when the seat is stored,
The leg 10 d is configured to be stored in the recess 10 a ′ on the lower surface of the seat cushion 10 a by the extension action of the link 13.

The support mechanism 20 includes a slide rail 20a,
It comprises a hinge bracket 20b, a first lock mechanism 20c, and a second lock mechanism 20d.

As shown in FIGS. 4 to 10, the slide rail 20a includes a lower rail 21a and an upper rail 21b fitted to the lower rail 21a and slidable in the front-rear direction. Is provided with a hooking member 21c, and a support bracket 21d is provided at a rear end portion on the lower surface side of the lower rail 21a. The sliding in the front-rear direction of the upper rail 21b is restricted to a predetermined range by contact between a roller 21e interposed between the two rails 21a and 21b and a stopper 21f provided at the bottom of the lower rail 21a.

The hook member 21c has a hook portion 21h formed at the tip thereof so as to be detachably engaged with a hook member 21g provided on the vehicle floor. Therefore, the hooking member 21c and the hooking member 21g constitute a front locking mechanism for detachably locking the slide rail 20a to the vehicle floor.
The slide rail 20a is provided with the lock mechanism and a second
It is detachably disposed on the vehicle floor at the rear lateral side of the tire house via the lock mechanism 20d.

In the slide rail 20a,
A hinge bracket 20b is provided upright on the upper rail 21b. The hinge bracket 20b includes a fixed bracket 22a, a rotating bracket 22b, and a hinge pin 22c connecting the brackets 22a and 22b to each other.
The right side of the seat cushion 10a is fixed to the rotating bracket 22b.

The first lock mechanism 20c includes an upper rail 2
1b is releasably locked to the lower rail 21a, and the support bracket 2 is attached to the upper rail 21b.
A support shaft 23a rotatably supported via 1i and extending in the front-rear direction, a lock claw 23b fixed to the support shaft 23a, and a lock release handle 23c fixed to the rear end of the support shaft 23a. The support shaft 23a is urged by a spring member (not shown), and the lock claw 23b is inserted into one of the lock holes 23e of the lock plate 23d fixed to the lower surface of the lower rail 21a, so that the upper rail 21b is moved to the lower rail 21a. Locked.

The unlocking handle 23c has a tip end rotatably supported by a tip end of an unlocking lever 14. An operating cable 12c is connected to a turning end of the unlocking lever 14. I have. Lock release lever 1
Reference numeral 4 is urged clockwise in FIG. 6 by a spring member (not shown) to hold the lock mechanism 12 for the leg 10d in a state in which it can be hooked to a hook member (not shown).

The second lock mechanism 20d includes a pair of frame members 24 and 25 constituting a base frame, a base plate 26, a pair of swing arms 27, and a pair of torsion springs 28a.
b.

The first frame member 24 constituting the base frame is formed by bending both ends of a plate of a predetermined width downward, and protrudes downward from the flat portion 24a and each end of the flat portion 24a. And a pair of legs 24b. The second frame member 25 forming the base frame includes a cylindrical portion 25a, a pair of left and right outward flange portions 25b extending laterally from an upper end of the cylindrical portion 25a, and a cylindrical portion 25a.
Of a pair of front and rear upward flanges 2 extending upward from the upper end of the upper surface
5c. These two frame members 24, 25
Are connected and integrated by a connecting shaft 29a in a state in which both upward flange portions 25c are fitted between both leg portions 24b,
Thus, a base frame is configured.

The base plate 26 is shaped like a circular dish and is placed face down on the flat portion 24a of the first frame member 24, and the connecting pin 29b is attached to the flat portion 24a.
Are connected rotatably in the horizontal direction. Cam grooves 26a are formed in the base plate 26 at positions sandwiching the coupling pins 29b. Each cam groove 26a
Is bent in the clockwise direction in FIG. 6 and extends from the proximal end to the distal end in a direction gradually separated from the coupling pin 29b. A base end of a release lever 28b is fixed to a peripheral edge of the base plate 26.

Each of the swing arms 27 has a predetermined thickness and a predetermined length. An intermediate portion is formed on the support portion 27a, an upper end portion is formed on the cam portion 27b, and a lower end portion is formed on the hook portion 27c. The swing arm 27 is attached to the connection shaft 29a so as to be rotatable in the up-down direction, and is erected by a torsion spring 28a wound on a sleeve 29c fitted on the connection shaft 29a, and stands upright. Cam part 2
7b into the cam groove 26a of the base plate 26,
Further, the hook portion 27c, which is the lower end portion, is projected outward from an opening 25d provided below the cylindrical portion 25a of the second frame member 25.

As shown in FIGS. 9 and 10, the second lock mechanism 20d having this structure is attached to a support bracket 21d provided at the rear end of the lower rail 21a.
It is detachably engaged with the engaging edge of the opening 32a of the engaging plate 32 provided on the floor panel 31 side. Reference numeral 29d shown in FIG. 9 denotes a cover body that covers the upper part of the second lock mechanism 20d.

On the floor panel 31 side, a recess 31a is formed at a position corresponding to the second lock mechanism 20d, and an engagement plate 32 is attached so as to cover the recess 31a. The engaging plate 32 has an opening 32.
a is formed, and the periphery of the opening 32a is an engagement edge. The bottom side of the second frame member 25 of the second lock mechanism 20d can advance and retreat with respect to the opening 32a of the engagement plate 32.

As shown in FIG. 9, the upper portion of the engagement plate 32 except for the opening 32a is covered with a cover 32b.

In the second lock mechanism 20d having such a structure, when the seat is fixed to the vehicle floor as shown in FIG. 4, the second frame member is provided as shown in FIGS. 25 is the engagement plate 3
Each swing arm 27 has its hook portion 27c engaged with the engaging edge of the opening portion 32a, and each of the swing arms 27 has its cam portion 27b formed in the cam groove 26a of the base plate 26. It is located at the base end.

In this state, the operation lever 28b is moved to the position 2 in FIG.
When the rotating operation is performed as shown by the dashed line, the base plate 2
6 rotate in the same direction, and each swing arm 27 is moved by the action of each cam groove 26 a of the base plate 26 to the cam portion 2.
7b is rotated in a direction away from the coupling pin 29b,
The hook portion 27c of the swing arm 27 is retracted inward from the opening 25d of the second frame member 25. As a result, the hook 27c of the swing arm 27 is separated from the engagement edge of the opening 32a of the engagement plate 32, and the lock of the slide rail 20a on the vehicle floor by the second lock mechanism 20d is released. Therefore, in this state, when the locking of the leg 10d to the vehicle floor by the lock mechanism 12 is released, the seat can be removed from the vehicle floor.

When the slide rail 20a is not fixed to the vehicle floor by the second lock mechanism 20d, the bottom side of the second frame member 25 of the second lock mechanism 20d is connected to the opening of the engagement plate 32. 32a, each swing arm 27 has its hook 2
7c is automatically engaged with the engaging edge of the opening 32a, the cam portion 27b is positioned at the base end of the cam groove 26a of the base plate 26, and the slide rail 20a is locked to the vehicle floor.

In the seat having such a configuration, the lock arm 11 provided at the front end of the leg 10d and the locking member 21c provided at the front end of the slide rail 20a are used.
It is hung removably on each hanger member on the front side of the vehicle floor,
And a lock mechanism 12 provided at the rear end of the leg 10d,
The second locking mechanism 20d detachably locks the respective locking members on the rear side of the vehicle floor. As a result, the seat is fixedly supported on the vehicle floor.

In the seat in such a fixed state, when the lock release lever 14 and the lock release handle 23c are gripped and the lock release lever 14 is pulled, the operation cable 12c is extended, and the connecting arm 12b is operated and the lock arm 11 is operated.
And the locking state of each locking member by the lock mechanism 12 is simultaneously released, and the fixed state of the leg 10d to the vehicle floor is released. In this state, the seat cushion 10a is connected to the hinge pin 22 of the hinge bracket 20b.
The seat can be turned counterclockwise in FIG. 4 around the center c, and the seat is stored in an inverted state to the left in the figure with the seat back 10b laid down on the seat cushion 10a. Can be.

In the seat, by rotating the lock release handle 23c, the support shaft 23a is rotated, the lock claw 23b is pulled out from the lock hole 23e, and the upper rail 21 with respect to the lower rail 21a.
b, the upper rail 21b can be slid in the front-rear direction by a predetermined amount, and the seat in the inverted state to the left in the figure is moved in the front-rear direction to change the storage position of the sheet. be able to. After changing the seat storage position, the upper rail 21b is locked to the lower rail 21a by the action of the first lock mechanism 20c.

Further, the locked state of the vehicle floor on the rear side of the seat cushion 10a is released by releasing the lock state of the lock mechanism 12 and the second lock mechanism 20d to the vehicle floor, and the seat in this state is moved rearward. , The entire seat can be removed from the vehicle floor.

As described above, the position of the seat can be adjusted in the front-rear direction along the slide rail 20a, and the seat cushion 10a can be rotated around the hinge pin 22c of the hinge bracket 20b provided on the slide rail 20a. Can be stored in an inverted manner on the wall side of the vehicle body integrally with the seat back 10b which is laid down thereon. Further, it is possible to change the storage position of the inverted sheet by moving the sheet in the front-back direction.

In the seat, the slide rail 20a constituting the support mechanism 20 has the first lock mechanism 20c for releasably fixing the upper rail 21b to the lower rail 21a. , The upper rail 21b is connected to the lower rail 2
The sheet 1a can always be fixed, thereby preventing backlash when the sheet is stored.

In the sheet, the support mechanism 20
And a lock mechanism for releasably fixing the front and rear ends of the slide rail 20a to the vehicle floor, so that the seat cushion 10a is integrated with the seat back 10b on which the seat cushion 10a is laid down from the vehicle floor. When the seat is not in use, the seat can be detached from the vehicle floor, and the vehicle floor can be widely opened for effective use, and the cover for the side window 33 can be completely removed. Can be prevented.

In the sheet, the support mechanism 20
Is arranged beside the tire house on the vehicle floor so that the seat is stored at a position avoiding the tire house, so that the dead space at the time of storing the seat can be reduced and the vehicle The field of view obliquely behind can be enlarged.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a stored state of a sheet according to an example of the present invention.

FIG. 2 is a perspective view showing a state where the seat is removed from a vehicle floor.

FIG. 3 is a perspective view of a state where the seat is fixed to a vehicle floor.

FIG. 4 is a schematic perspective view showing a leg and a support mechanism constituting the seat.

FIG. 5 is a side view of the support mechanism.

FIG. 6 is a plan view of a rear portion of the support mechanism.

FIG. 7 is a rear view of the first lock mechanism in the support mechanism.

FIG. 8 is a vertical cross-sectional view of the lock mechanism taken along a line 8-8 in FIG. 5;

FIG. 9 is a vertical cross-sectional view of the second lock mechanism of the support mechanism, taken along the line 9-9 in FIG. 6;

FIG. 10 is an arrow 10-10 in FIG. 6 of the lock device.
FIG. 4 is a longitudinal sectional view cut along a line.

[Explanation of symbols]

10a: seat cushion, 10b: seat back, 1
0c: Headrest, 10d: Leg, 11: Lock arm, 11a: Hook, 12: Lock mechanism, 12a: Operation lever, 12b: Connection arm, 12c: Operation cable, 13: Link, 14: Release lever, 20: Support mechanism, 20a slide rail, 20b hinge bracket, 20c first lock mechanism, 20d second lock mechanism, 21a lower rail, 21b upper rail, 21
c: Hook member, 21d: Support bracket, 21e: Roller, 21f: Stopper, 21g: Hook member, 21h: Hook portion, 21i: Support bracket, 22a: Fixed bracket, 22b: Rotating bracket, 22c: Hinge pin,
23a: support shaft, 23b: lock claw, 23c: lock release handle, 23d: lock plate, 23e ...
Lock holes, 24, 25: frame member, 24a: flat portion, 24b: leg portion, 25a: cylindrical portion, 25b: outward flange portion, 25c: upward flange portion, 25d: opening portion, 26
... Base plate, 26a ... cam groove, 27 ... swing arm, 27a ... support part, 27b ... cam part, 27c ... hook part, 28a ... torsion spring, 28b ... release lever, 29a ... connecting shaft, 29b ... coupling pin, 29c ... Sleeve, 29d ... cover body, 31 ... floor panel, 31
a ... recess, 32 ... engagement plate, 32a ... opening, 33
… Side window.

Claims (2)

[Claims] 1. A seat cushion comprising: a seat cushion; and a seat back having a lower end attached to a rear end of the seat cushion so as to be rotatable in the front-rear direction. The vehicle fold has a configuration in which the seat cushion is supported by the vehicle floor so as to be rotatable in the vertical direction, and the seat cushion is inverted and stored on the wall side of the vehicle body integrally with the seat back laid down on the seat cushion. In the tatami seat, the support mechanism includes a slide rail, a lock mechanism for fixing front and rear ends of the slide rail to be detachable from the vehicle floor, and an upper rail constituting the slide rail releasable from a lower rail. The hinge bracket includes a lock mechanism for fixing, and a hinge bracket erected on the upper rail of the slide rail. Vehicle folding sheet characterized by fixing the side portion of the seat cushion on the movable side bracket. 2. The vehicle folding seat according to claim 1, wherein the support mechanism is disposed on a side of a tire house on the vehicle floor, and the seat is stored at a position avoiding the tire house. A foldable seat for a vehicle, wherein