JPH10315830A - Lock device of spring-up seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lock device which springs up, in the specified position, a spring-up seat attached to a slide rail. SOLUTION: A lock device includes a lower rail 8 and an upper rail 7, and through holes 81 and 82 are opened in the specified positions on the lower rail 8, and the upper rail 7 is furnished with a lock piece 4 and hook 1 rotatable in the vertical direction when stoppers 13 and 43 are inserted into these holes 81 and 82. A striker 9 on the seat side is engaged in the condition that the hook 1 is rising upright.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a locking device for a second seat such as a one-box vehicle and a jumping seat such as a third seat.

[0002]

2. Description of the Related Art Conventionally, when a seat is not used, the seat cushion is lifted forward or sideward around one bottom of the seat cushion when the seat is not used, so that the seat installation location on a vehicle floor can be effectively used as a loading platform. There are things to use.

[0003] The seat is mounted on a vehicle floor so as to be movable in the front-rear direction by a slide rail for adjusting the front-rear position of the seat. The seat is locked to the upper rail by engaging a striker provided at the bottom of the seat.

[0004] Then, the seat is jumped up at a predetermined front and rear position, so that the seat installation location can be effectively used, and the jumped up seat is folded on a wall surface or the like at a predetermined position of the vehicle body.

[0005]

However, in the conventional product, the seat can be locked to the upper rail at any point in the lower rail of the slide rail (for example, at the front end, middle, rear end, etc. in the longitudinal direction of the lower rail). , So that it can be unlocked.

[0006] Therefore, there is a problem that the sheet cannot be jumped up at a predetermined location because the sheet jumping position is not constant.

SUMMARY OF THE INVENTION It is an object of the present invention to specify a jumping position of a sheet at a predetermined position and to secure a locked state by a hook.

[0008]

According to a first aspect of the present invention, there is provided a locking device for a flip-up seat according to the present invention, in which a hook is erected in a rising direction of a hook when a striker is engaged with an upper rail of a slide rail. Attaching the lock piece that supports the hook so that it can rotate freely in the same direction as the hook,
In each of the lower portions of the hook and the lock piece, a stopper portion rotatably inserted into a through hole opened at a predetermined position on the bottom of the lower rail in an engagement state of the striker is extended, and an upper portion of the lock piece is provided. And a release plate that slides in the falling direction of the hook by the operation force of the operation lever.

The hooks and the lock pieces are rotatable by engaging the respective stopper portions of the hooks and the lock pieces with the through holes opened at the bottom of the lower rail, and the rotation locks and unlocks the striker. Then, in the places other than the through holes, the stoppers are joined to the bottom of the lower rail, so that they cannot be rotated.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. First, as shown in FIG. 5, the jumping sheet is slidably connected to a slide rail (R) provided on the wall surface (W) side of the vehicle body, and one side is attached so as to be able to jump up by a hinge (not shown). A leg (90) is integrally provided at the bottom of the other side, and a substantially U-shaped striker (9) is protruded from the rear side of the leg (90).

The striker (9) is provided on the upper rail of the slide rail on which the leg (90) is placed by engaging with an engagement hole (71) opened in the top plate (70) of the upper rail. Locked by the hook.

In the figure, (SC) is a seat cushion, and (S)
(B) is a seat back, (8) is a lower rail embedded in the vehicle body (F), and the opening of the lower rail (8) is closed by a cover (8A) with a slit.

FIG. 2 is an exploded view of the upper rail (7) and the lower rail (8) having the device of the present invention. The upper rail (7) is a vertical runner (7A) that slides in the lower rail (8). A top plate (70) made of a horizontal plate is welded to the top, and rollers (73) are arranged in front of and behind the runner (7A). 70) shows a projection to be welded.

At the rear part of the runner (7A), a supporting piece (61) is integrally fastened to a bent part (62) having a U-shaped part by bolts (63) and (63). A hook (1), a lock piece (4), and an arm (3) are provided between the bent portion (62) and the support piece (61), and a release plate (2) is connected to the lock piece (4). ing.

The hook (1) is attached to the rotating shaft (51), the lock piece (4) is attached to the stop shaft (53) juxtaposed to the rotating shaft (51),
Each is rotatably mounted on a shaft, and the arm (3) is a stop shaft (53).
And one end of the stop shaft (53) is attached to a spring (5).
4) is latched, and the arm (3) is urged counterclockwise in FIGS. 2 and 3 by the elastic force of the spring (54).

In the figure, reference numeral (12) denotes a rotary shaft (51) insertion hole provided in the hook (1), (45) denotes a stop shaft (53) insertion hole provided in the lock piece (4), and (35) denotes an arm ( 3) shows fixing holes for integrally fixing the arm (3) to the stop shaft (53) through the stop shaft (53).

As shown in FIG. 2, the hook (1) is turned up in the rearward direction (clockwise in FIGS. 2 and 3) to stand up, engage the striker (9), and turn in the opposite direction. Thereby, as shown in FIG. 3, the engagement state (lock state) with respect to the striker (9) is released and stored in the top plate (70) of the upper rail (7).

The hook (1) has an engagement recess for a striker (9) on the rear edge side thereof.
A slot (11) is opened behind the slot (2).
A connection pin (32) inserted into a through hole (31) provided at the tip of the arm (3) is inserted into 1). Therefore, as described above, since the tip of the arm (3) is urged upward, the hook (1) is turned in the unlocking (retracting) direction and falls down.

The front end of the hook (1) has a recess (14) with which the lock portion (44) of the lock piece (4) engages.
Are provided, and in the locked state as shown in FIG.
The lock portion (44) of the lock piece (4) is joined to the recess (14) of the upright hook (1) to support the hook (1).

A stopper (13) for turning the hook is provided below the hook (1), and a stopper (43) for turning the lock is provided below the lock piece (4).
Each of the stoppers (13) (43) is a lower rail (8).
When it is located in the through holes (81) and (82) opened in the bottom portion (80) of the predetermined position (the sheet jumping position), it is formed to be able to penetrate into the through holes (81) and (82). ing.

Therefore, the stoppers (13) and (43) are inserted into the through holes (81) and (82) of the lower rail (8), so that the hook (1) and the lock piece (FIG. 3) are provided. (4) becomes rotatable. That is, the state that can be changed from the locked state of FIG. 2 to the unlocked state of FIG. 3 or vice versa is performed only at a predetermined position of the lower rail (8).

Therefore, at locations other than the through holes (81) and (82), the stoppers (13) and (43) abut against the inner surface of the bottom (80) of the lower rail (8), and the hook (1)
The lock piece (4) cannot rotate and cannot be locked or unlocked.

When the release plate (2) is slid forward in the locked state shown in FIG. 2, an elongated hole (22A) formed in the bracket portion (22) of the release plate (2).
Since the pin (42) of the lock piece (4) engaged therein is pulled forward, the lock portion (44) of the lock piece (4) is disengaged from the concave notch (14) of the hook (1) and the hook (1). The pivot pin (10) provided in (1) is pulled by the hook (20) of the release plate (2). As described above, the elasticity of the spring (54) for urging the arm (3) always acts on the hook (1) in the falling direction.

Therefore, the hook (1) pivots in the falling direction and the lock piece (4) also pivots in the same direction as the hook (1), and each stopper portion (13) (43) is connected to the lower rail (8). It is inserted into the through holes (81) and (82), and the locked state is released as shown in FIG.

The slide portion (21) of the release plate (2) is guided by a guide piece (72) provided on the inner surface of the top plate (70), and the slide portion (21) is connected to the top plate (70). Is fixed to a mounting bracket (23) integral with a rod (24) connected to an operating lever (26) provided at the tip of the mounting bracket (23), and the mounting bracket (23) is urged rearward by a tension spring (25). In the figure, (27) is an operation lever, (26) is a storage bracket, (28) is a spring for retracting the bracket (27), and (71A) is a hook (1).
Are shown, respectively.

Next, the operation from the unlocked state to the locked state will be described. The hook (1) and the lock piece ( 4) is located in the state shown in FIG.

When the sheet in the flipped state is returned to the original state in this state, the striker (9) comes into contact with the pressing portion (3A) of the arm (3) from within the engaging hole (71) of the top plate (70). The end of the arm (3) is pushed down by the load of the sheet against the elasticity of the spring (54). As a result, as shown in FIG. 2, the hook (1) in the lying state is turned upright and the striker (9) pressing the arm (3) is engaged. The lock plate (4) has a release plate (2)
The locking portion (44) is engaged with the concave portion (1) of the hook (1) because the elasticity of the tension spring (25) for urging the hook (1) backward is acting.
4) to support the hook (1) in the locking direction.

In the engaged state (locked state) of the striker (9), the hooks (1) and the stopper portions (13) (43) of the lock piece (4) are connected to the through holes (8) of the lower rail (8).
1) Escape from (82) and located inside lower rail (8). Therefore, in the locked state, the upper rail (7) and the seat can be moved and adjusted in the front-rear direction of the lower rail (8).

In the figure, (3B) is a notch for restricting the rotation of the arm (3). When the turning pin (10) of the hook (1) abuts on the notch (3B), the arm (3) is moved. It is configured not to protrude upward.

[0030]

According to the present invention, since the lifting seat is locked and unlocked with respect to the slide rail only at a predetermined position of the lower rail fixed to the vehicle floor side of the slide rail, the seat is provided at a predetermined position. You can jump up to the place exactly.

In addition, in the locked state, the hook is supported by the lock pieces, so that the locked state is ensured.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of the device of the present invention.

FIG. 2 is a sectional view of a locked state.

FIG. 3 is a cross-sectional view of an unlocked state.

FIG. 4 is a cross-sectional view of FIG.

FIG. 5 is an explanatory view showing a use state of the device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hook 2 Release plate 3 Arm 4 Lock piece 7 Upper rail 8 Lower rail 9 Striker 13 Hook stopper part 43 Lock piece stopper part 81 Lower rail through-hole 82 Lower rail through-hole

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Mitsuo Kamada 10-1, Amanuma, Hiratsuka-shi, Kanagawa Prefecture Inside Nissan Shatai Co., Ltd. (72) Inventor Yasuo Hirama 10-1, Amanuma, Hiratsuka-shi, Kanagawa Nissan Shatai Co., Ltd. (72) Inventor Yoshihiko Yamauchi 771 Koizono, Ayase City, Kanagawa Prefecture Inside Ikeda Bussan Co., Ltd. (72) Inventor Masami Yonekura 771, Koizono, Ayase City, Kanagawa Prefecture Inside Ikeda Bussan Co., Ltd. (72) Inventor Harutoshi Fujii Tokyo 3-1-2, Matsubara-cho, Akishima-shi, Tokyo Inside Tachi-S Co., Ltd.

Claims (1)

[Claims] An upper rail slidably fitted to a lower rail fixed to a vehicle floor side is provided with a hook for engaging a striker on a seat side so as to be able to move up and down, and the hook is raised by a descending striker to engage the striker. And
What is claimed is: 1. A lock device for a flip-up sheet, which is urged in an unlocking direction, which is a falling direction, by a spring elasticity. A lock piece to be rotatably pivoted in the same direction as the hook, and rotatably penetrates through a through hole opened at a predetermined position on the bottom of the lower rail in a state where the striker is engaged with each of the lower portions of the hook and the lock piece. A locking device for a flip-up sheet, wherein a stopper portion to be inserted is extended, and a release plate that slides in a falling direction of a hook by an operation force of an operation lever is connected to an upper portion of the lock piece.