JP2000335298A - Vehicle seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate a stopper contacting with baggage and the like so as not to cause damage, and deterioration of appearance quality of a seat cushion when it is leaped by disposing a locking device in the seat cushion such that the stopper is not exposed. SOLUTION: A notch portion 12 is formed at a rear end face of a cushion body 1 of a seat cushion SC. In the notch portion 12, a stopper 20 of a locking device is pivotably attached in the vertical direction. Further, the stopper 20 is covered with a cover 13 together with the cushion body 1. The locking device is formed integrally with the cushion body 1 in a mold when the cushion body 1 is foamed. Then, locking between the seat cushion SC and a seatback SB is released by pulling an operation belt 3 and the seat cushion SC turns about the front portion and leaps in an upright position. Therefore, damage to baggage and the like due to contact with the locking device can be fully prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle seat, and more particularly, to a vehicle seat comprising a jumpable seat cushion and a forwardly retractable seat back.

[0002]

2. Description of the Related Art Conventionally, there are rear seats of a passenger car which can be folded when loading luggage (for example, Japanese Utility Model Publication No. 58-135329 and Japanese Utility Model Publication No. 6-19406). .

[0003] In this method, a locking device is provided at the rear end of a seat cushion pivotally mounted at a front portion so that a stopper abuts against a lower end portion of a seat back. The seat cushion is unlocked by being pivoted upward by the operation force of the operation belt, so that the seat cushion can jump forward.

[0004] The stopper attached to the rear end of the seat cushion protrudes rearward from the rear end surface of the seat cushion.

[0005]

Therefore, since the stopper is protruded to the outside, when the seat cushion is lifted upright with the front portion as the center of rotation, the stopper (made of metal) is lifted up. It becomes a protrusion protruding above the top surface of the seat cushion.

[0006] Therefore, there is a risk that the luggage or the like may be damaged when it comes into contact with the stopper, and that the appearance quality when the seat cushion is jumped up may be impaired.

Therefore, an object of the present invention is to eliminate such disadvantages of the conventional product.

[0008]

A vehicle seat according to the present invention for achieving the above object is characterized in that a conventional locking device is disposed inside a seat cushion.

Therefore, the stopper constituting the lock device is not exposed to the outside.

Since the locking device is embedded in the foam cushion body of the seat cushion, the metal locking device is covered by the foam cushion body when the seat cushion jumps up, and damage to luggage and the like is caused. Can be completely prevented.

A fixing piece for fixing the locking device to a frame integral with the cushion body; and a stopper pivotally mounted on the fixing piece so as to be vertically rotatable and urged downward by the elastic force of a spring. The cushion body above the stopper of the lock device is provided with a notch for turning the stopper, so that the stopper is provided in the notch provided in the foam cushion. As a result, damage to luggage and the like can be further prevented, and the seat cushion can be smoothly locked and unlocked, and the operating force of the operating belt for unlocking can be reduced.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of the present invention will be described.
This will be described with reference to the drawings. FIG. 1 shows the seat cushion (S
C) shows a rear portion (B), in which (1) is a cushion body made of foam, and a rear end surface (11) of the cushion body (1).
A notch (12) is formed from the top to the upper surface (10).

A stopper (20) of the lock device shown in FIG. 2 is pivotally mounted in the notch (12) so as to be vertically rotatable, and the stopper (20) is a cushion body (1).
With the skin (13).

The rear portion (B) of the seat cushion (SC) is pressed against the lower end portion (A) of the seat back (SB) as shown in FIG.

Then, as shown in FIG. 5, the seat cushion (SC) is pulled by pulling the operation belt (3) having its tip mounted on the seating surface of the seat cushion (SC). Is unlocked, and as shown by the dashed line, the front part is rotated about the center of rotation so that it can be lifted up.

After the seat cushion (SC) is jumped up, the seat back (SB) is moved forward to the original position of the seat cushion (SC) as shown by a dashed line, and the back surface of the seat back (SB) is moved forward. It is configured so that it can be used as a carrier.

The lock device (2) shown in FIG. 2 is a wire frame (25) (25) of the seat cushion (SC).
And a stopper (20) whose base end is pivotally attached to the fixing piece (21) by a shaft (23) so as to be vertically rotatable. In (), the tip (201) is constantly urged downward by the elastic force of the spring (24) wound around the shaft (23).

The fixing piece (21) is provided with an operation belt (3).
And a stopper mounting part (210) for pivotally connecting the stopper (20) with a shaft (23). The stopper mounting part (210) 210), a stopper (2)
0) is regulated to a constant level to restrict the upward rotation.
1) is provided.

As shown in FIG. 1, the restricting projection (211) is provided in the notch (12) of the cushion (1).

The stopper (20) has a bent portion (201) that bends at a right angle at the distal end, and has a lower restricting protruding piece (201) at the base end that restricts downward rotation as shown in FIG. 202) are provided integrally.

The operation belt (3) is provided with a lower end portion (A) of the seat back (SB) and a rear end portion (B) of the seat cushion (SC) from the outside of the skin (13) covering the stopper (20). Through the seat cushion (SC)
Of the seating surface.

The above-mentioned lock device (2) is embedded in the cushion body (1) as shown in FIG. During foam molding of the cushion body, the lock device (2) welded to the frames (25) and (25) is formed integrally with the cushion body (1) in a cushion body molding mold.

FIG. 3 shows a locked state of the seat cushion (SC). The front portion of the seat cushion (SC) is pivotally attached to the vehicle floor side, while the rear portion (B) is a seat back (SB). At its lower end (A).

When, for example, an upward impact load is applied to the rear portion (B) of the seat cushion (SC) at the time of a vehicle collision, the bent portion (201) provided at the tip of the stopper (20) causes the seat back. The rear part of the seat cushion (SC) is indirectly abutted against a locking member (not shown) provided in the (SB), and the lower part (A) of the seat back (SB)
It is configured so that it does not escape from and jump off. Therefore, the seated state of the occupant is completely ensured.

FIG. 4 shows a state in which the locked state of the seat cushion (SC) is released and the seat cushion (SC) is jumped up, for example, when loading a load.

When the front end (31) of the operation belt (3) is pulled against the elasticity of the spring (24), the stopper (20) is turned around the shaft (23) to form the notch (1) in the cushion body (1). 1
2) The inside is turned upward. Therefore, the stopper (20)
Of the seat back (S)
B) is separated from the lower end (A).

When the operation belt (3) is further pulled,
The pulling force of the operation belt (3) is applied to the seat cushion (S
Due to the lifting force of C), the seat cushion (SC) rotates about the front part and becomes upright. At this time, the lock device (2) is covered with the skin (13) together with the cushion body (1), and is not exposed to the outside.

Thereafter, the seat back (SB) is moved forward as described above, so that the rear surface of the seat back (SB) becomes horizontal and can be used as a carrier.

In FIGS. 3 and 4, (14) indicates a carpet stuck to the bottom surface of the seat cushion (SC).

[0030]

According to the present invention, since the lock device is disposed inside the seat cushion and the stopper is not exposed to the outside, the disadvantage of the conventional product caused by the protrusion of the stopper to the outside can be solved.

Further, by embedding the lock device in the foam cushion body, it is possible to completely prevent damage to luggage and the like due to contact with the lock device when the seat cushion jumps up.

Further, by disposing the stopper of the locking device in the notch provided in the cushion body, the stopper is protected by the cushion body, locking and unlocking by the stopper are ensured, and locking by the operation belt is achieved. The release operation force can also be reduced.

[Brief description of the drawings]

FIG. 1 is a cutaway perspective view showing a main part of the present invention.

FIG. 2 is a perspective view of a lock device used in the present invention.

FIG. 3 is a sectional view of a main part in a locked state.

FIG. 4 is a sectional view of a main part in a state where a lock is released.

FIG. 5 is an explanatory diagram illustrating movement of a seat cushion and a seat back.

[Explanation of symbols]

 SC Seat cushion SB Seat back 1 Seat cushion cushion 2 Locking device 12 Cushion notch 20 Locking device stopper 21 Locking device fixing piece

Claims (3)

[Claims] A locking device is provided at a rear end of a seat cushion pivotally mounted at a front portion so that a stopper abuts a lower end portion of a seat back, and the stopper of the locking device is operated. A vehicle seat in which a seat cushion is unlocked by being rotated upward by an operation force of a belt and can jump up a seat cushion, wherein the locking device is disposed inside the seat cushion. Sheet. 2. The vehicle seat according to claim 1, wherein the lock device is embedded in a foam cushion body of a seat cushion. 3. The lock device according to claim 1, wherein the lock device is fixed to a frame integral with the cushion body, and is pivotally mounted on the fixed piece so as to be rotatable in a vertical direction, and is urged downward by the elastic force of a spring. The notch for turning the stopper is provided on the cushion body above the stopper of the lock device.
The vehicle seat according to the above.