JP2000229527A - Automobile seat structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an automobile seat structure capable of releasing a lock of a lock mechanism of a seat back with a simple operation when enlarging a baggage room space and smoothly using the enlarged baggage room space. SOLUTION: In regard to the automobile seat structure having a seat back 4 folded and housed in a space S made by flipping up a seat cushion 3 toward a front of a vehicle, one end of a cable 9 is attached to a back surface of the seat cushion 3 and the other end of the cable 9 is attached to a lock mechanism of the seat back 4, and the lock mechanism is operated via the cable 9 in association with the flipping up of the cushion 3. It is composed so that a lock to the seat back 4 is released by the structure.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double-folding type vehicle seat structure for a small passenger car, a wagon type passenger car and the like.

[0002]

2. Description of the Related Art Conventionally, in an automobile having a luggage compartment at the rear of a passenger compartment, as shown in FIGS. 6 and 7, in order to increase a luggage compartment space R in accordance with the amount and size of loaded luggage, A double-folding type rear seat 51 is provided, and the use of the rear seat 51 enables effective utilization of the cargo space R. That is, a rear seat 51 of this type is placed on an upper portion of a rear floor 52 and a front side is rotatably connected to a seat cushion 53, and a rear end of the seat cushion 53 is provided in an upright state. A seat back 54 is provided on the rear floor 52 so as to be rotatable in the front-rear direction. The seat back 54 is moved forward in the space created by flipping the seat cushion 53 forward (in the direction of arrow A). The seat back 54 is configured to be folded down and stored, and the upper part of the back of the seat back 54 is used as a part of the luggage space R. An operation knob 55 for operating a lock mechanism (not shown) is provided at the upper end of the seat back 54.

[0003]

However, in the rear seat 51 having the above-mentioned conventional structure, when the luggage space R is expanded, first, as the first operation, the seat cushion 5 is used.
3 and the like (not shown) are released, and the seat cushion 53 is flipped up toward the front of the vehicle. Next, as a second operation, the operation knob 55 is pulled up in the direction of arrow B to release the lock of the locking mechanism and the reclining device with respect to the seat back 54, and then, as a third operation, the seat back 54 is tilted forward of the vehicle. Since two mechanism operations and a seat operation before and after the mechanism operation are required, the seat operation for obtaining the expanded cargo space R is troublesome.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to make it possible to release the lock of a seat back lock mechanism by a simple operation when expanding a luggage space, and to provide an enlarged load. It is an object of the present invention to provide an automobile seat structure capable of using a room space smoothly.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems of the prior art, according to the present invention, an automobile seat for storing a seat back by tilting a seat back in a space created by flipping a seat cushion forward of a vehicle. In the structure, one end of a cable is attached to the back side of the seat cushion, and the other end of the cable is attached to a lock mechanism of the seat back. With the seat cushion flipped up, the lock mechanism is connected via the cable. The lock on the seat back is released by operating the seat back.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on illustrated embodiments.

FIGS. 1 to 5 show an embodiment of a vehicle seat structure according to the present invention. Rear seat 1 in the figure
Is installed in small passenger cars and wagon-type passenger cars that have a luggage compartment at the rear of the passenger compartment, and has a double folding type structure to expand the luggage compartment space R according to the amount and size of loaded luggage. It has become. That is, the rear seat 1 is disposed on the upper part of the rear floor 2 in a substantially horizontal state, and the seat cushion 3 on which the occupant sits is provided.
And a seat back 4 arranged in a standing state at the rear side of the seat cushion 3 to receive the back of the occupant. The seatback 4 is stored in the space S generated by the tilting of the seatback 4 in front of the vehicle, and the upper part of the back of the seatback 4 is used as a part of the luggage space R.

For this reason, as shown in FIGS. 1, 4 and 5, the front portion 3a of the seat cushion 3 is rotatably connected to the upper portion of the rear floor 2 via the cushion hinge 5, and thereafter, When the part 3b is lifted, the front part 3a is pivoted toward the front of the vehicle and can be flipped up. Also, the back (bottom) of the seat cushion 3
The side is formed by a resin frame 6 as shown in FIG. 2, and a cable mounting portion 7 is provided on the outer side of the frame 6 by partially expanding the frame outward.
The cable attaching portion 7 has a flat lower surface 7a and the lower surface 7a.
a is formed in a substantially trapezoidal shape in a side view, and a narrow groove 8a is provided on the lower surface 7a, and a wide groove 8b is formed on the rear inclined surface 7b. The groove portions 8a and 8b communicate with each other to form a guide groove 8 for guiding one end of a cable 9 described later.

The cable 9 operates a lock mechanism (not shown) of the seat back 4, extends in a vehicle front-rear direction with a predetermined length, and is arranged along the outside of the seat cushion 3. The cable 9 has a double structure including an inner cable 9a and an outer cable 9b covering a part except for the front and rear ends of the inner cable 9a, and one end of the inner cable 9a extends in the vehicle width direction. An extended drum-shaped cable pin 10 is attached. The cable pin 10 is inserted into the cable attaching portion 7 through a wide groove 8b constituting the guide groove 8, and
It is arranged so as not to slip out of the guide groove 8 by sliding while engaging with the peripheral edge of the narrow groove 8a. Therefore, one end of the cable 9 is connected to the back surface of the seat cushion 3 via the cable pin 10 of the inner cable 9a and the cable attaching portion 7 of the resin frame 6. A cable bracket 11 having an L-shaped cross section is provided upright on the outer upper surface of the rear floor 2 located near the front portion 3a of the seat cushion 3 in order to absorb play of the cable 9 and ensure reliability of the operation. Further, the vicinity of the front end of the outer cable 9b is fixed to the cable bracket 11.

On the other hand, as shown in FIGS. 1 and 3, the seat back 4 has a reclining device 12 having a lower end 4a.
And is rotatably supported in the front-rear direction through the rear floor 2 so that the vehicle can be tilted forward or upright.
The reclining device 12 changes and adjusts the rising angle of the seat back 4 with respect to the seat cushion 3 by operating a lock mechanism (not shown) of the seat back 4 provided therein. Seat-side member 12a attached to the side of the vehicle
And a floor-side member 12b attached to the rear floor 2.
And a relay member 12c whose lower part is attached to the floor-side member 12b and whose intermediate part is rotatably connected to the seat-side member 12a.

A lock release lever 13 for operating a lock mechanism (not shown) is attached to the reclining device 12. A proximal end of the lock release lever 13 is connected to a relay member of the reclining device 12 by a pivot pin 14. 12c rotatably supported. The inner cable 9 is connected to the distal end of the lock release lever 13.
The other end of a is attached. Moreover, a reclining bracket 15 having the same function as the cable bracket 11 is erected on the floor side member 12b of the reclining device 12, and the vicinity of the rear end of the outer cable 9b is fixed to the reclining bracket 15. Have been. Therefore, the other end of the cable 9 is connected to a lock mechanism (not shown) of the seat back 4 via the other end of the inner cable 9a and the lock release lever 13.

In a vehicle equipped with a rear seat 1 having a seat structure according to an embodiment of the present invention, a luggage space R
First, the rear portion 3b of the seat cushion 3 in the rear seat 1 in the use state shown in FIG. (See FIG. 5). Then, the inner cable 9a of the cable 9 is pulled toward the front of the vehicle by the seat cushion 3, rotates the lock release lever 13 clockwise, and operates a lock mechanism (not shown) provided on the reclining device 12, Accordingly, the lock on the seat back 4 is released. Then, if the seat back 4 is pushed or pulled, the seat back 4 is tilted forward and placed in a horizontal state, and stored in the space S generated by the flip up of the seat cushion 3,
The upper part of the back of the seat back 4 becomes available, and the luggage space R is expanded (see the chain line in FIG. 1).

In order to return the rear seat 1 in such a state to the state in use, first, the upper end of the seat back 4 is lifted, and the seat back 4 is pivoted rearward around the lower end 4a to stand up. Then, the inner cable 9a of the cable 9
Is pulled to the rear of the vehicle by the reclining device 12 and the lock release lever 13 of the seat back 4, and accordingly, the seat cushion 3 automatically falls to the rear of the vehicle,
It will return to the original horizontal state. During this time, the lock release lever 13 is rotated counterclockwise by the urging force of a spring or the like, and a lock mechanism (not shown) provided on the reclining device 12 is operated to lock the seat back 4. The upright state of the seat back 4 is maintained.

In the rear seat 1 according to the embodiment of the present invention, one end of the inner cable 9a constituting the cable 9 is connected to the back side of the seat cushion 3 via the cable pin 10 and the cable attaching portion 7 of the resin frame 6. The other end of the inner cable 9a is connected to a lock mechanism (not shown) of the seat back 4 via a lock release lever 13.
To the rear part 3b of the seat cushion 3.
, The inner cable 9a of the cable 9 is pulled in the same direction.
The lock mechanism (not shown) of the seat back 4 is actuated by the lock release lever 13 to release the lock on the seat back 4, the seat back 4 can be moved forward and stored in the space S, and the cargo space R can be easily operated. Can be enlarged. Moreover, in the embodiment of the present invention, the seat back 4
If you turn it upright while lifting it up,
Since the seat cushion 3 automatically falls to the rear of the vehicle,
The rear seat 1 can be easily returned to the original use state.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications and changes are possible based on the technical idea of the present invention. is there.

For example, in the reclining device 12 of the above-described embodiment, the return spring is not provided. However, when the return spring is provided, the seat back 4 also moves forward with the seat cushion 3 jumping up. Then, the seat back 4 can be automatically stored in the space S, and the number of operations can be further reduced, and the operability can be improved. In the present embodiment,
The locking mechanism of the seat back 4 is moved to the reclining device 12.
However, the lock mechanism may be provided separately from the reclining device 12, depending on the type of the rear seat 1, on the side body at a position facing the side of the seat back 4 in the upright state. Furthermore, the vehicle seat structure of the present invention is not limited to the rear seat 1, and can be applied to middle seats of large vehicles.

[0017]

As described above, the vehicle seat structure according to the present invention is such that the seat back is tilted and stored in a space created by flipping the seat cushion forward of the vehicle, and the back surface of the seat cushion is provided. Side, and the other end of the cable is attached to the lock mechanism of the seat back, and the seat back is raised by operating the lock mechanism via the cable when the seat cushion is flipped up. Is configured to unlock the seat back lock mechanism by a simple operation when expanding the luggage space provided in the rear part of the vehicle interior of the automobile, By reducing the number of operations when using the luggage compartment, the expanded luggage compartment space can be used smoothly, It is excellent in sex. In addition, the vehicle seat structure of the present invention does not require a knob for operating the seat back lock mechanism as in the related art, and the cable is provided at a position inconspicuous from the outside, so that the appearance of the seat back is made clear. Thus, the appearance quality of the sheet can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a double-folding type rear seat to which an automobile seat structure according to an embodiment of the present invention is applied.

FIG. 2 is a view as viewed from an arrow X in FIG.

FIG. 3 is a view as viewed in the direction of the arrow Y in FIG. 1;

FIG. 4 is a side view showing the state before the seat cushion is flipped up, as viewed in the direction of arrow Z in FIG. 1;

FIG. 5 is a side view showing the state after the seat cushion is flipped up, as viewed in the direction of the arrow Z in FIG. 1;

FIG. 6 is a side view showing a double-folding type rear seat to which a conventional automobile seat structure is applied, before a seat cushion is flipped up.

FIG. 7 is a side view showing a double-folding type rear seat to which a conventional automobile seat structure is applied, in a state where a seat cushion is flipped up and a seat back is tilted forward.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rear seat 2 Rear floor 3 Seat cushion 4 Seat back 5 Cushion hinge 6 Resin frame 7 Cable attachment part 8 Guide groove 9 Cable 10 Cable pin 11 Cable bracket 12 Reclining device 13 Lock release lever 14 Pivot pin R Luggage space S Space

Claims (3)

[Claims] 1. An automobile seat structure in which a seat back is tilted and stored in a space created by flipping a seat cushion forward of a vehicle, wherein one end of a cable is attached to the back side of the seat cushion, An end is attached to the lock mechanism of the seat back, and the lock on the seat back is released by operating the lock mechanism via the cable in accordance with flipping up of the seat cushion. Automotive seat structure. 2. The vehicle seat structure according to claim 1, wherein the lock mechanism is provided on a reclining device for a seat back. 3. The vehicle seat structure according to claim 1, wherein the lock mechanism is provided on a body at a position facing a side portion of the seat back in an upright state.