JP2951878B2 - Car seat folding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention, the installation space
The present invention relates to a folding apparatus for a seat of an automobile having a reduced size .

[0002]

2. Description of the Related Art Conventionally, in a folding apparatus for a seat of an automobile, a backrest of the seat of the automobile is lowered by operating an operation lever, the seat is raised, and the backrest is placed on the seat. The backrest is provided with a reclining mechanism having a function of adjusting an angle, and the seat is provided with a seat lock mechanism for locking the seat in contact with the floor.

[0003] A backrest unlocking cable for lowering the backrest connects the operating lever and the reclining mechanism, and a seat unlocking cable for standing up connects the operating lever and the seat locking mechanism. As described above, the conventional folding apparatus for a seat of an automobile requires a space for disposing the backrest unlocking cable and the seat unlocking cable. Further, the mechanism around the operation lever is connected to the end of the backrest unlocking cable and the end of the seat unlocking cable, so that it is large and requires a large installation space.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a folding apparatus for a seat of an automobile having a small installation space.

[0005]

SUMMARY OF THE INVENTION The present invention relates to a folding seat for a motor vehicle comprising a seat mounted on a floor in a vehicle interior and a backrest rotatably mounted on a rear portion of the seat.
A seat urging means provided between a front portion of the seat and the floor, for urging the seat around a fulcrum, and a rear portion of the seat and the floor are detachable. A seat lock mechanism to be fixed to, and provided between the backrest and the seat,
Backrest biasing means for biasing the backrest forward;
A backrest for restricting rotation of the backrest with respect to the seat
A lock mechanism, an operating means, and one end connected to the operating means
The other end is connected to the backrest lock mechanism,
Rotation of the backrest with respect to the seat by operating the operating means;
Connection member for backrest lock release operation to release movement restriction
And one end is connected to the seat lock mechanism, and the other end is the back.
The backrest lock by the backrest unlocking connecting member;
The backrest lock is released after the lock
The operation connecting member is connected so as to be pulled, and the operation is performed.
The rotation of the backrest lock mechanism is restricted by the operation of the means.
Release the seat lock by the seat lock mechanism after release
And technical means consisting of a driven cable. Ma
According to the second aspect of the present invention, the automatic transmission according to the first aspect is provided.
In the folding device for a car seat, the operating means and
The backrest unlocking connection members are individually operated.
Operating lever and main cable.
Installed near the driver's seat or rear door of the car,
Release of the backrest lock mechanism by remote operation of the bar
Technology to release the seat lock mechanism.
Means.

[0006]

[Action and Effect of the Invention] Folding of car seat of the present invention
By operating the operating means,
This turns and overlaps the seat. Operate the operating means further
And the seat rises forward. Release the seat lock mechanism
Mechanism by the backrest unlocking connection member
After the rotation restriction of the backrest lock mechanism is released, the backrest
A slave connected to the release member
It is composed of a moving cable and directly from the operating means.
Since the operation is not transmitted, the configuration is simple and the installation
Source can be made smaller. Also, as in claim 2, the backrest
Use main cable as connecting member for unlocking operation
This makes remote operation easy and drives the operating lever
Easy installation by installing near the seat or rear door
You can fold the car seat with just one touch
You.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A folding apparatus for a rear seat of an automobile to which the present invention is applied will be described with reference to the embodiments shown in FIGS. FIG. 1 shows a five-door passenger car A having a hatchback-type rear door 11, in which rear seats B, B arranged side by side in the passenger compartment are provided with a rear seat folding apparatus 1 according to the present invention shown in FIG. Have been. The rear seat B comprises a seat 2 attached to the floor 12 of the passenger compartment, and a backrest 3 rotatably attached to the rear of the seat 2 so as to be adjustable in inclination angle, and is a reclining seat.

The seat 2 comprises a rectangular frame 21 and a cushion 22 fixed to the frame 21. The front member 23 of the frame 21 is rotatably attached to a pair of legs 13, 13 fastened to the floor 12, and is provided with seat urging mechanisms 24, 24 for urging in the forward rotation direction. The rear part of the frame 21 is in contact with the floor 12 and the seat lock mechanism 4 is attached inside.

The seat biasing mechanism 24 includes a pin 25 projecting laterally from the leg 13, a spiral spring 26 having a center end connected to the pin 25 and an outer end connected to the front member 23. Consists of When the rear seat B is set at the normal position, the spiral spring 26 is compressed and urges the seat 2 in the forward rotation direction.

The seat lock mechanism 4 has a hook 41 fastened to the floor 12 and a side plate 42 fixed to the inner member 27 of the frame 21. One end of the side plate 42 is provided with a notch 43 for engaging with the hook 41, and the other end of the side plate 42 is rotatably mounted at a fulcrum with a rotary engaging plate 45 to which one end of a biasing spring 44 is connected. ing.

Further, the side plate 42 has a pivot engagement plate 45 pivoted at one end so as to engage with the hook 41 and the engagement notch 43.
An actuating section for releasing the engagement with the actuator is provided, and an operator plate 46 to which the other end of the urging spring 44 is connected is rotatably attached to the other end at the fulcrum.

A seat-side bracket 31 is fastened to both sides (only the left side is shown) of the rear portion of the cushion 22.
A cover-like back side bracket 32 is fastened to both lower sides of the backrest 3. The seat side bracket 31 and the back side bracket 32 are rotatably connected by a fulcrum 33.

A backrest 3 is provided at an outer fulcrum 33 in the vehicle interior.
Is provided with a lock mechanism (reclining mechanism) 5 with an angle adjustment function of the backrest 3 incorporating a backrest urging mechanism 51 for urging in the front rotation direction. The backrest urging mechanism 51 includes a pin 52 fixed to the back bracket 32 and protruding inward, a center end connected to the pin 52, and an outer end hooked to a hook 34 provided on the seat bracket 31. And a spiral spring 53 provided.

As shown in FIGS. 3 and 4, the reclining mechanism 5 includes teeth 55 provided on the outer periphery of a disk-shaped portion 54 provided at the upper end of the seat-side bracket 31, and a rotary meshing member that meshes with the teeth 55. 56, a link mechanism 58 connected to the tip of the rotary engagement member 56 and having four members including a spring 57.

The folding device 1 for the rear seat comprises a lock mechanism 5 having an angle adjusting function of the backrest 3 incorporating the seat urging mechanism 24, the seat lock mechanism 4, the backrest urging mechanism 51, and a releasing means 6 to be described later. Consists of

The release means 6 includes an operation lever 7 which is an operation mechanism installed in the opening of the rear door 11, a main cable 61 (cable of the present invention) for transmitting a pulling force to release the lock to the reclining mechanism 5, It comprises a driven mechanism 8 that releases the lock of the seat lock mechanism 4 by the pulling force of the cable 61. The operation lever 7 may be installed on the floor of the driver's seat.

The operation lever 7 has a bracket 70 fixed to the vehicle body, and a lever main body 72 supported by a support shaft 71 provided below the bracket 70. A return spring 7S is attached between the bracket 70 and the lever main body 72, and urges the lever main body 72 forward to apply a restoring force. The upper end of the lever main body 72 is a mounting portion for the handle T shown in FIG.

At the front end of the bracket 70, a main cable 6
A slit 73 for holding 1 is formed. The main cable 61 includes a pipe-shaped outer cable 61A that forms a tension transmission path and an inner cable 61I that is formed of a stranded wire that is displaced and expands and contracts through the outer cable 61A.
Consists of

One end 611 of the inner cable 61I is engaged with a slit engaging claw 62 provided at an intermediate portion of the lever body 72, and the other end 612 is connected to the action portion 59 of the link mechanism 58. One end of the outer cable 61A is fixed to the slit 73, and a flange 61B is fixed to an end of the inner cable 61I exposed from the one end. A substantially cylindrical transmitting member 80 for transmitting a tensile force to the driven mechanism 8 is inserted and fixed near the center of the inner cable 61I. A flange is formed at an end of the transmission member 80 on the operation lever 7 side so as to abut on the driven mechanism 8.

As shown in FIG. 2, the driven mechanism 8 has a frame member 81 which determines the arrangement of the structure, and an inner cable 61I which is attached to the frame member 81 and holds the outer cable 61A.
, A displacement member 83 attached to the frame member 81 and displaced by the pulling force of the main cable 61, the displacement member 83 and the operator plate 46 of the seat lock mechanism 4. And a driven cable 84 for pulling the connecting element plate 46. The frame member 81 includes a bottom plate M that is vertically attached to the inner member 27 of the frame body 21, a front guide plate F that projects laterally at the front side of the bottom plate M and a guide member 82 that penetrates in the front-rear direction, The guide member 82 extends laterally and penetrates in the front-rear direction.
4 has a notch for passing in the front-rear direction and a rear guide plate E provided above the guide member 82.

The displacement member 83 has an L-shaped cross section and has a frame member 81.
Is disposed at the center of the bottom plate M with an elongated member having substantially the same length as the width in the vertical direction. The displacement member 83 is connected to one of the flat plates 8.
5 is positioned on the front guide plate F side with respect to the other flat plate 86, and the other flat plate 86 is stacked on the bottom plate M, and the pin member P
As a result, the upper end of the other flat plate 86 is positioned above the center of the bottom plate M, and is rotatable about the upper end along the bottom plate M. Further, one flat plate 85 of the displacement member 83 has a first opening h1 at the lower end for passing the inner cable 61I, and a second opening h2 for passing the driven cable 84 at the center.

As a result, the main cable 61 is passed through the front and rear guide members 82, 82 and the first opening h1, and the transmission member 80 is located between the displacement member 83 and the rear guide plate E. A locking piece 87 is connected to one end of the driven cable 84 to prevent the one end from being pulled out to the rear side of the one flat plate 85 of the displacement member 83.

The rear seat folding device 1 operates as follows. When the rear seat B is set at the proper position, as shown in FIGS.
2 is set to the front position. In this state, the inner cable 61I has the smallest tensile force, and as shown in FIG.
The teeth 55 provided on the outer periphery of the gear and the rotary meshing member 56 are engaged and locked.

When the handle T is grasped and the lever body 72 is pulled backward, the lever body 72 rotates around the support shaft 71 and is displaced to an intermediate position shown in FIGS. In this state, the other end 612 of the inner cable 61I is pulled downward, and the action portion 59 of the link mechanism 58 is displaced downward.

As a result, the rotary toothing member 56 rotates clockwise in the figure, and as shown in FIG.
6 is released, the lock is released, and the backrest urging mechanism 51 folds the backrest 3 on the upper surface of the seat 2 as shown in FIG. At this stage, the transmission member 80 fixed to the inner cable 61I is not in contact with the displacement member 83, so that the lock by the seat lock mechanism 4 is not released yet.

When the gripper T is further gripped and the lever main body 72 is pulled backward, the lever main body 72 further rotates, and FIG.
As shown in FIG. 5 (c), it is displaced to the rear position. As a result, the transmission member 80 is displaced forward and abuts on the displacement member 83 to cause the displacement member 83 to follow. Subsequently, since the driven cable 84 pulled by the displacement member 83 rotates the operator plate 46 about the pulling fulcrum, the rotation engaging plate 45 is rotated by the urging spring 44, and the engagement fitting 41 is notched with the hook fitting 41. The engagement with 43 is released. Thereby, the seat urging mechanism 2
4, the seat 2 is folded together with the backrest 3 into the backrest of the front seat, as shown in FIG.

In the above embodiment, the folding device of the present invention is applied to a rear seat, but it is obvious that the folding device can be applied to a middle seat or a passenger seat. Operation lever 7 and main cable 6
A member such as an operation rod may be appropriately interposed between the two. Instead of the driven cable 84, a member such as an operation rod may be used. Further, instead of the operation lever 7, an operation grip that is displaced in a direction in which the main cable 61 is pulled may be used.

[0028]

According to the folding apparatus for a seat of an automobile of the present invention, only one cable is required to be connected to the operating mechanism, and the operating mechanism can be reduced in size, so that the space required for installation is small.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a folding operation of a rear seat.

FIG. 2 is a schematic configuration diagram of a folding device for a rear seat.

FIG. 3 is a side view of a lock mechanism (reclining mechanism) with an angle adjusting function.

FIG. 4 is a side view of a lock mechanism (reclining mechanism) with an angle adjusting function.

FIG. 5 is a perspective view of an operation lever.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 rear seat folding device (automobile seat folding device) 2 seat 3 backrest 4 seat locking mechanism 5 lock mechanism with angle adjustment function (backrest locking mechanism) 6 release means 7 operating lever 8 driven mechanism 12 floor 24 seat biasing mechanism 51 Backrest biasing mechanism (backrest biasing means) 61 Main cable (cable)

Continuation of the front page (56) References Japanese Utility Model Sho 58-112649 (JP, U) Japanese Utility Model Utility Model Hei 5-63968 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) B60N 2 / 00-2/54

Claims (2)

(57) [Claims] 1. A seat mounted on a floor in an automobile interior;
A folding device for an automobile seat comprising a backrest rotatably attached to a rear portion of the seat, the folding device being provided between a front portion of the seat and the floor, and rotating the seat forward around a fulcrum. A seat urging means for urging, a seat lock mechanism for detachably fixing a rear portion of the seat and the floor, a backrest provided between the backrest and the seat, and for urging the backrest forward. Urging means and a backrest for restricting rotation of the backrest with respect to the seat;
A lock mechanism, operating means, and one end connected to the operating means, and the other end connected to the backrest.
Locking mechanism, and the seat is operated by operating the operating means.
A backrest for releasing the rotation regulation of the backrest with respect to
A lock release operation connecting member, one end of which is connected to the seat lock mechanism, and the other end of which is the backrest.
The backrest lock by a connecting member for unlocking operation
After the rotation of the mechanism is released, the backrest lock release operation
Operating means connected to the connecting member for pulling
Operation to release the rotation restriction of the backrest lock mechanism
Later, the fixing of the seat by the seat lock mechanism is released.
Folding device for automobile seats consisting of moving cables . Wherein Oite an automobile seat folding device as claimed in claim 1, wherein the operating means and connecting said back lock release operation
The members are an operation lever and a main cable, respectively.
Place the control lever near the driver's seat or rear door of the car.
And the backrest is provided by remote control of the operation lever.
Release the lock mechanism and release the seat lock mechanism.
Seat of the folding device of a motor vehicle, characterized in that was Unishi.