JP2001287575A - Vehicle seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle seat having a seat back capable of easily falling from both of a driver's seat side and the outside of a vehicle chamber. SOLUTION: This vehicle seat comprises a seat cushion 3, the seat back 32 rotatably supported by the seat cushion 3, a reclining device 11 for retaining the seat back 32 at a prescribed angle to the seat cushion 3, and a lock releasing band 7 for releasing the retaining state of the seat back 32 by the reclining device 11. The seat back 32 falls by operating the reclining device 11 through the lock releasing band 7 to release the retaining of the seat back 32. The lock releasing band 7 is provided on the substantially lateral center and front part of at least one of the seat cushion 3 and the seat back 32.

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 an unlocking means for a passenger seat that can be turned upside down.

[0002]

2. Description of the Related Art As shown in FIG. 9, a vehicle seat (hereinafter, simply referred to as a seat) 101 is provided with a seat back 1.
03 and a seat cushion 105 so that the seat back 103 can be turned upside down. A reclining device 107 as shown in FIG. 10 is provided on a side portion of the vehicle seat 101. The reclining device 107 includes a hinge upper 109 provided on the seat back 103 and a hinge lower 111 provided on the seat cushion 105.
13 and is rotatably connected. As shown in FIG. 10, the inside of the reclining device 107 is supported by a hinge upper 109 with a pin 117 at the center of an arm 115 bent in a U shape, and an unlocking band 119 is attached to one end of the arm 115. , A claw 123 is attached to the other end via a shaft 121. The lower surface of the claw 123 is formed in a tooth shape, and can mesh with the upper surface of the hinge lower 111. The shaft 121 is configured to be able to move up and down in a long hole 125 formed in the hinge upper 109. On the other hand, hinge lower 11
1 has a substantially semicircular shape on which fine teeth 129 are formed. Also, since the claw 123 is urged downward by a spring (not shown), the claw 123 is normally
And the teeth 129 are locked together.

When the vehicle seat 101 having the above configuration is used, as shown in FIG.
By unlocking the lock state by pulling the lock release band 119 of 07 in the arrow direction 127, the seat back 103 can be tilted forward as shown in FIG.

[0004] An example in which it is necessary to lay down the passenger side seat 101a will be described with reference to FIG. First, when operating from a state of sitting on the driver's seat 101b, as shown by an arrow P in FIG. 12, when taking a load placed on the rear seat 130, and as shown by an arrow Q, the assistant moved forward There is a case in which the luggage placed on the back of the seat back 103a is taken. Further, when the occupant enters the rear seat 130 from the outside of the vehicle after the seat back 103a on the passenger seat side is moved forward as shown by the arrow R in FIG. 12, the back of the seat back 103a which is moved forward as shown by the arrow S. This is a case where the luggage placed on the vehicle is taken from the outside of the vehicle.

However, in the case of the vehicle seat 101, the reclining device 107 is provided at the left end or the right end of the passenger side seat 101a.
For example, as shown in FIG.
When the reclining device 107 is disposed at the left end of the vehicle seat a, the occupant 131 seated on the driver's seat 101b pulls the unlocking band 119 of the reclining device 107 and tilts the passenger's seat 101a forward. Operation is difficult, and the seat back 103a
The arm 132 may be pinched. Further, as shown in FIG. 14, when the reclining device 107 is provided at the right end of the passenger seat side seat 101a, a person 135 outside the vehicle operates the reclining device 107 by operating the door. Leaning into the cabin through the opening 133,
Since the unlocking band 119 must be pulled in a bent state, the operability is extremely poor, and the arm 137 may be pinched by the seat back 103a that has fallen further.

[0006]

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems and to provide a vehicle seat in which a seat back can be easily tilted from either a driver's seat side or from outside a vehicle compartment. I do.

[0007]

In order to achieve the above object, a vehicle seat according to the present invention comprises: a seat cushion attached to a vehicle body; a seat back rotatably supported by the seat cushion; A reclining device for holding the seat back at a predetermined angle with respect to the seat cushion, and a lock release unit for releasing a holding state of the seat back by the reclining device, wherein the reclining device is provided via the lock release unit. A vehicle seat configured to actuate and release the holding of the seat back to lie down on the seat back, wherein the unlocking means is provided in at least one of the seat cushion and the seat back in the vehicle width direction. It is provided substantially at the center. That is, the unlocking means may be provided only on the seat cushion or only on the seat back, or may be provided on both the seat cushion and the seat back. However, it is necessary that the mounting position is substantially at the center of the seat cushion or the seat back in the vehicle width direction. When the vehicle seat is, for example, a front passenger seat, the unlocking means can be easily reached from an occupant sitting on the driver's seat and from a person outside the vehicle. For this reason, the operation of tilting the seat back from both the driver's seat and the outside of the vehicle compartment is simplified, and the work of putting luggage at the rear of the vehicle, the work of taking out luggage from the rear of the vehicle, and getting into the rear of the vehicle becomes easy. .

In one aspect of the vehicle seat according to the present invention, the lock release means is provided at a front portion of the seat cushion in the vehicle longitudinal direction. Further, in another aspect of the vehicle seat according to the present invention, the unlocking means is provided at an upper portion of the seat back in the vehicle vertical direction. According to the vehicle seat, the operation of tilting the seat back is further facilitated, and the workability of mounting the unlocking means is also improved. Further, in still another aspect of the vehicle seat according to the present invention, the reclining device further includes an urging device that urges the seatback in a direction of falling. This urging device can use a return spring or the like. According to the vehicle seat described above, the seat back automatically falls down only by operating the lock release means, so that the operability is very good. Further, in still another aspect of the vehicle seat according to the present invention, a soft unlocking band is used as the unlocking means. According to the above vehicle seat, when the occupant sits on the seat, even if the unlocking band hits the occupant's leg, head, or the like, the occupant does not feel uncomfortable and does not feel uncomfortable.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a vehicle seat according to an embodiment of the present invention will be described in detail with reference to the drawings. A vehicle seat 1 according to an embodiment of the present invention is shown in FIG.
As shown in FIG. 1, an unlocking band 7 is provided at the front end of the seek cushion 3 and at a substantially central portion 5 in the vehicle width direction, and is connected to a reclining device 11 via a wire member 9. The unlocking band 7 is made of a soft material such as webbing.

The lower part of the seat cushion 3 is shown in FIG.
As shown in FIG. 1, a seat frame 13 for reinforcing the vehicle seat 1 is provided. This seat frame 13
A frame portion 15 formed in a substantially U-shape, a spring portion 17 disposed along the vehicle width direction, and a bracket 19 fixed to a front end portion of the frame portion 15 and a central portion in the vehicle width direction. Have. As shown in FIG. 3, the bracket 19 is a plate-like member arranged along the vehicle width direction, and a substantially semicircular notch 21 opens toward the center in the vehicle width direction. . The wire member 9 includes an outer tube 23 having an insertion hole penetrating therein, and an inner wire 25 housed in the insertion hole of the outer tube 23. A groove 27 having a small diameter is formed at the distal end of the outer tube 23, and the groove 27 is formed in the notch 21 of the bracket 19.
It is configured to fit into.

Further, as shown in FIG. 4, the wire member 9 is attached to the spring portion 17 by, for example, a C-ring 29 or a band, and its end is fixed to an arm (not shown) of the reclining device 11. ing. As shown in FIG. 5, the reclining device 11
A hinge lower 31 fixed to the seat cushion 3,
A hinge upper 33 fixed to the seat back 32 of the seat 1 and rotatably supported by the hinge lower 31 is provided, and a return spring 35 is disposed inside the hinge upper 33. This return spring 3
5 has a hinge upper 33 at one end via a pin 37.
, And wound a plurality of times, and the other end is fixed to the hinge lower 31 via the hinge shaft 39. Accordingly, the hinge upper 33 and the seat back 32 are urged by the return spring 35 in the arrow direction 41 of FIG. 5, that is, in the forward direction of the vehicle.

The operation of the vehicle seat 1 having the above configuration will be described below. First, when the unlocking band 7 shown in FIG. 1 is pulled toward the front of the vehicle, the wire member 9 is pulled following the movement of the unlocking band 7. Since the distal end of the wire member 9 is connected to the reclining device 11 as described above, when the wire member 9 is pulled, the hinge upper 33 and the hinge lower 3
1 is released, and the locked state of the seat back 32 is released. In this state, the seat back 32 falls down toward the front of the vehicle by the urging force of the return spring 35 shown in FIG. 5, as shown in FIG.

The vehicle seat 1 according to the present invention is not limited to the above-described embodiment of the present invention.
Various modifications and changes are possible based on the technical concept of the present invention. For example, in the above embodiment of the present invention, the lock release band 7 is attached to the front end of the seat cushion 3.
7 and 8, the unlocking band 51 is provided at the upper end of the seat back 32 and substantially at the center 53 in the vehicle width direction. Is also good. 7 shows a seat 55 without a headrest, and FIG. 8 shows a seat 59 having a headrest 57.
When the user pulls 1, 61, the locked state of the reclining device 11 is released through the wire member, and the seat back 32 is released.
Is configured to fall to the front side of the vehicle.

[0014]

According to the vehicle seat of the present invention, the unlocking means can be easily reached from the occupant sitting on the driver's seat side or from the person outside the vehicle.
Therefore, the operation of tilting the seat back from both the driver's seat and the outside of the vehicle compartment becomes easy, and the work of putting luggage at the rear of the vehicle, the work of taking out luggage from the rear of the vehicle, and getting on the rear of the vehicle becomes easy.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a vehicle seat according to the present invention.

FIG. 2 is a perspective view showing a seat frame disposed below the vehicle seat of FIG. 1;

FIG. 3 is an enlarged perspective view of a part A in FIG. 2;

FIG. 4 is an enlarged perspective view of a portion B in FIG. 2;

FIG. 5 is a sectional view taken along line CC of FIG. 1;

FIG. 6 is a perspective view showing the vehicle seat in a state where the seat back of FIG. 1 is folded down.

FIG. 7 is a perspective view showing a modification of the present invention.

FIG. 8 is a perspective view showing a modification of the present invention.

FIG. 9 is a perspective view showing a conventional vehicle seat.

FIG. 10 is a sectional view taken along line DD of FIG. 9;

11 is a perspective view showing a state in which the vehicle seat of FIG. 9 is folded.

FIG. 12 is a schematic diagram illustrating an operation after folding a passenger seat side seat.

FIG. 13 is a perspective view showing an operation of lowering a passenger side seat from a driver seat.

FIG. 14 is a perspective view showing an operation of tilting the passenger side seat from outside the vehicle.

[Explanation of symbols]

 1, 55, 59 Vehicle seat 3 Seat cushion 7, 51, 61 Lock release band 9 Wire member 11 Reclining device 13 Seat frame 15 Frame portion 17 Spring portion 19 Bracket 21 Notch 23 Outer tube 25 Inner wire 27 Groove portion 29 C-ring DESCRIPTION OF SYMBOLS 31 Hinge lower 32 Seat back 33 Hinge upper 35 Return spring 37 Pin 39 Hinge shaft 57 Headrest 5, 35 Substantially central part

Claims (6)

[Claims] A seat cushion attached to a vehicle body; a seat back rotatably supported by the seat cushion; a reclining device for holding the seat back at a predetermined angle with respect to the seat cushion; Lock release means for releasing the holding state of the seat back by the reclining device, wherein the reclining device is operated via the lock release means to release the holding of the seat back and the seat back is tilted. A vehicle seat, wherein the unlocking means comprises:
A vehicle seat, wherein the vehicle seat is provided at at least a substantially central portion in a vehicle width direction of the seat cushion and the seat back. 2. The vehicle seat according to claim 1, wherein the unlocking means is provided at a front portion of the seat cushion in a vehicle front-rear direction. 3. The vehicle seat according to claim 1, wherein the unlocking means is provided on an upper portion of the seat back in a vehicle vertical direction. 4. The vehicle seat according to claim 1, wherein the reclining device further includes an urging device for urging the seat back in a direction to fall down. 5. The vehicle seat according to claim 4, wherein the biasing device is a return spring. 6. A vehicle seat according to claim 1, wherein a soft unlocking band is used as said unlocking means.