JP2616348B2 - Vehicle seat - Google Patents

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 provided with a seat cushion and a seat back, wherein the seat back is provided so as to be tiltable back and forth by a reclining mechanism, and is provided on both sides of the seat cushion. A seat body provided with an armrest, a leg provided on the floor, and a rotation mechanism provided at the center of the upper end of the leg are provided, and the seat body is mounted on the rotation mechanism and rotated. The present invention relates to a vehicular seat that can be arranged.

[0002]

2. Description of the Related Art Conventionally, as a seat for a vehicle such as a one-box car, a railway, and a bus, a seat body in which a seat body is mounted on a rotating mechanism and is rotatably arranged is known. The seat body includes a seat cushion and a seat back, and the seat back is provided so as to be capable of tilting back and forth by a reclining mechanism. In many cases, the vehicle seat is formed of a connection seat for two or three people.

[0003] There are many seats having a mechanism for folding the seat back of the seat body, but in many cases, an operation lever for the folding operation is arranged on the side of the seat back.

[0004]

In a conventional vehicle seat, a mechanism for folding the seat back in the middle is of a latch type or a mechanical lock type. Since it is disposed on the side, the amount of work required to operate the operation lever increases, and there is a possibility that the operation may be difficult for users such as girls, children, and the elderly.

In a conventional vehicle seat, for example, a one-box car, a railroad, and a bus, etc., the seat body must be rotated in a narrow space.
In this case, when the seat back is tilted backward by the reclining mechanism, the reclining mechanism must be operated before the rotation of the seat body, so that the operation has to be complicated.

In particular, in a vehicle or the like in which a large number of seats are arranged side by side, the seat body must be turned in one direction for cleaning and the like in order to clean the seat.
The operation of the reclining mechanism had to be performed separately, and the work had to be complicated.

SUMMARY OF THE INVENTION It is an object of the present invention to easily and quickly operate the center back of a vehicle seat, to significantly reduce the amount of work required to operate the center bending mechanism, and to reduce the amount of work required for the rotating mechanism. It is an object of the present invention to provide a vehicle seat capable of simultaneously performing an operation and an operation of a reclining mechanism, thereby significantly improving work efficiency.

[0008]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and a vehicle seat according to a first aspect of the present invention includes a seat cushion and a seat back, and the seat back is tilted forward and backward by a reclining mechanism. A seat body provided as possible and armrests provided on both sides of the seat cushion, and legs provided on the floor,
A rotation mechanism provided at the center of the upper end of the leg, wherein the seat back is mounted on the rotation mechanism and is rotatably disposed, wherein the seat back is an upper structure And a lower structure, and the upper structure and the upper part of the lower structure are hingedly connected by a hinge, and a first cylinder mechanism having a fluid lock mechanism is connected to the hinge, The upper structure is tilted back and forth by the cylinder mechanism, and the seat back is bent in the middle. The first operation unit of the fluid lock mechanism of the first cylinder mechanism is provided on an armrest. It is characterized by being connected by an operation button and a control cable.

According to a second aspect of the present invention, there is provided a vehicle seat comprising:
An operation pedal for unlocking the rotation mechanism is provided on the leg portion, and the seat back is provided so as to be tiltable back and forth by a reclining mechanism operated by a second cylinder mechanism having a fluid lock mechanism. A second operation portion of the fluid lock mechanism of the mechanism is connected to a second operation button provided on the armrest by a control cable, and an operation pedal for unlocking the rotation mechanism and a fluid of the second cylinder mechanism. The lock mechanism is connected to the second operation unit by a control cable.

[0010]

According to the vehicle seat of the present invention, the seat back is divided into an upper structure and a lower structure, and the upper structure and the upper part of the lower structure are hinged. A first cylinder mechanism having a fluid lock mechanism is connected to the hinge portion, and the upper structure is tilted forward and backward by the first cylinder mechanism, so that the seat back is folded in a center. Since the first operation portion of the fluid lock mechanism of the first cylinder mechanism is connected to the first operation button provided on the armrest by the control cable, the pressing force of the first operation button provided on the armrest is provided. As a result, the first operating portion of the fluid lock mechanism of the first cylinder mechanism is operated, so that the work amount of the bending operation can be reduced, and the seat back is continuously stepped at a desired position It is possible to the center-folding operation.

According to the second aspect of the present invention, the seat back is operated by the second cylinder mechanism, and the second operating portion of the fluid lock mechanism of the second cylinder mechanism. Are connected to a second operation button provided on the armrest by a control cable, and an operation pedal for unlocking the rotation mechanism and a second operation section of a fluid lock mechanism of the second cylinder mechanism are controlled. Since the connection is made by the cable, the seat body can be rotated by operating the operation pedal for unlocking the rotation mechanism, and the fluid lock of the second cylinder mechanism can be operated by operating the operation pedal. The second operating part of the mechanism can be operated simultaneously, and the seat back reclining mechanism is used when the seat body rotates. Because it can release the state it is possible to reduce the rotation radius of the seat body can be easily and quickly rotated without colliding with the front and rear of the seat body.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A vehicle seat according to the present invention will be described below in detail with reference to the drawings. 1 to 4 schematically show one embodiment of a vehicle seat according to the present invention. The vehicle seat 1 includes a leg 3 provided on a floor 2 and a leg 3 provided on the floor 2.
And a sheet main body 7 placed on the rotation mechanism 5.

The seat body 7 includes a seat cushion 8 mounted on a rotating mechanism 5, a seat back 9 provided on the rear end of the seat cushion 8, and armrests provided on both sides of the seat cushion 8. 10 are formed. In this embodiment, as is clear from FIGS. 2 and 3, the seat body 7 has a pair of right and left seating portions.
A description will be given of a case where the seat is formed from a connection seat for a person, but the present invention can be similarly applied to a connection sheet for three.

The seat cushion 8 of the seat body 7 and the seat back 9 are connected via a reclining mechanism 11, which will be described later, so that the seat back 9 can be tilted back and forth. A pair of left and right reclining mechanisms 11 are provided in the seating portion so that the seatbacks 9 of the pair of left and right seating portions can independently tilt back and forth.

The seat back 9 is formed separately from an upper structure 12 and a lower structure 12, and the upper structure 12 and the lower structure 13 are hinged to each other by a hinge 14. First cylinder mechanism 21 having a fluid lock mechanism between upper frame 15 of upper structure 12 of seatback 9 and lower frame 16 of lower structure 13
Are connected.

A hinge bracket 24 is rotatably mounted on the upper portion of the lower frame 16 of the lower structure 13 of the seat back 9, and the upper structure 1 is attached to the hinge bracket 24.
2 operating rod 26 extending below the upper frame 15
, The upper structure 11 can be tilted back and forth with respect to the lower structure 13 so that the seat back 9 can be bent in the middle.

The upper end of the first cylinder mechanism 21 is attached to the elbow bracket 24 attached to the upper part of the lower frame 16, and the lower end of the first cylinder mechanism 21 is attached to the bracket 28 attached to the lower part of the lower frame 16. Installed.

The first cylinder mechanism 21 includes a cylinder portion 31
And a push rod 32, and a first operating portion 33 of the push rod 32 is formed near the push rod 32. The cylinder portion 31 contains a fluid such as gas or oil, and constitutes a fluid lock mechanism. The fluid lock mechanism is configured so that the fluid is moved by a pushing operation of the push rod 32, and by releasing the pushing of the push rod 33 at a desired position, the operating rod 26 side of the hinge bracket 24, that is, the upper frame 15 is released.
The rotation of the side is stopped.

A control cable 35 is connected to a second operating portion 33 for operating the fluid lock mechanism of the first cylinder mechanism 21. The control cable 35 is guided to the front side of the armrest 10 and provided on the armrest 10. Connected to the first operation button 37.

When the first operation button 37 is pressed, the first operation section 33 presses the push rod 33 via the control cable 35, and the fluid lock mechanism is turned off. Structure 1
2 is tilted forward and is in a bent state.

The leg 3 is provided with an operating pedal 39 for unlocking the rotation mechanism 15. The reclining mechanism 11 has a second cylinder mechanism 41 having a fluid lock mechanism similar to the first cylinder mechanism 21.

The second cylinder mechanism 41 includes a cylinder section 42
And the push rod 43, and the second operating portion 44 of the push rod 43 is formed in the vicinity of the push rod 43, similarly to the first cylinder mechanism 21 described above. A control cable 45 is connected to the operation unit 44, and the control cable 45 is guided to the front side of the armrest 10 and is connected to a second operation button 47 provided on the armrest 10.

A control cable 51 is connected to an operation pedal 39 provided on the leg 3, and the control cable 51 is connected to a second cylinder mechanism 41 of the second cylinder mechanism 41.
Is connected to the operation unit 44.

Accordingly, when the second operation button 47 is pressed, the second operation button 47 is
Can be operated, and the seat back 9 can be tilted forward.

By pressing the operation pedal 39, the rotation mechanism 5 is unlocked, the seat body 7 can be turned on the leg 3, and the control cable 45
Is pulled, and the second operating portion 44 can be operated to obtain the forwardly inclined state of the seat back 9 of the left and right seating portions.

[0026]

The above is the configuration of the embodiment of the vehicle seat according to the present invention. According to this configuration, the seat back is divided into an upper structure and a lower structure, and the upper structure is formed. And an upper portion of the lower structure are hingedly connected by a hinge portion, a first cylinder mechanism having a fluid lock mechanism is connected to the hinge portion, and the upper structure tilts back and forth by the first cylinder mechanism, The seat back is configured to bend in the middle, and the first operation unit of the fluid lock mechanism of the first cylinder mechanism is connected to the first operation button provided on the arm rest by a control cable. The first operating portion of the fluid lock mechanism of the first cylinder mechanism is operated by the pressing force of the provided first operation button, and the seat back is easily and quickly folded in the middle. The amount of work required to operate the folding mechanism can be reduced, and the seatback can be folded in a desired position in a stepless manner, thereby significantly improving work efficiency. A vehicle seat can be obtained.

Further, according to the vehicle seat of the second aspect of the present invention, the seat back is operated by the second cylinder mechanism, and the second back of the fluid lock mechanism of the second cylinder mechanism. An operation unit is connected to a second operation button provided on the armrest by a control cable, and an operation pedal for unlocking the rotation mechanism and a second operation unit of a fluid lock mechanism of the second cylinder mechanism. Are connected by a control cable, the seat body can be rotated by operating the operation pedal for unlocking the rotation mechanism, and by operating the operation pedal, the second cylinder mechanism can be operated. The second operation unit of the fluid lock mechanism can be simultaneously operated, and the seat back reclining mechanism can be used when the seat body rotates. Because it can release the rearwardly inclined state that it is possible to reduce the rotation radius of the seat body, it is possible to obtain a vehicle seat can be easily and quickly rotated without colliding with the front and rear of the seat body.

[Brief description of the drawings]

FIG. 1 is an explanatory side view of a main part of a vehicle seat according to the present invention.

FIG. 2 is an explanatory perspective view of a vehicle seat according to the present invention.

FIG. 3 is a front view of the vehicle seat according to the present invention.

FIG. 4 is an explanatory side view showing a tilted state of a seat back of the vehicle seat according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vehicle seat 2 Floor 3 Leg part 5 Rotation mechanism 7 Seat main body 8 Seat cushion 9 Seat back 10 Armrest 11 Reclining mechanism 12 Upper structure 13 Lower structure 14 Hinge part 15 Upper frame 16 Lower frame 21 First cylinder mechanism 24 Hinge bracket 26 Operating rod 28 Bracket 31 Cylinder part 32 Push rod 33 First operating part 35 Control cable 37 First operating button 39 Operating pedal 41 Second cylinder mechanism 44 Second operating part 45 Control cable 47 Second Manual operation button

Claims (2)

(57) [Claims] 1. A seat body comprising a seat cushion and a seat back, wherein the seat back is provided so as to be tiltable back and forth by a reclining mechanism, and armrests are provided on both sides of the seat cushion, and legs provided on the floor. And a rotation mechanism provided at the center of the upper end of the leg, wherein the seat back is located on an upper part of a vehicle seat in which the seat body is mounted on the rotation mechanism and is rotatably arranged. The upper body and the upper part of the lower body are hingedly connected to each other by a hinge part, and a first cylinder mechanism having a fluid lock mechanism is connected to the hinge part. The first cylinder mechanism tilts the upper structural member back and forth so that the seat back can be folded in the middle, and the fluid lock device of the first cylinder mechanism can be used. A vehicle seat, wherein a first operation unit is connected to a first operation button provided on an armrest by a control cable. 2. An operation pedal for unlocking the rotation mechanism is provided on the leg, and the seat back is provided so as to be able to tilt forward and backward by a reclining mechanism operated by a second cylinder mechanism having a fluid lock mechanism. A second operation portion of the fluid lock mechanism of the second cylinder mechanism is connected to a second operation button provided on an armrest by a control cable, and an operation pedal for unlocking the rotation mechanism and a second operation button. 2. The vehicle seat according to claim 1, wherein a control cable is connected to a second operation portion of the fluid lock mechanism of the cylinder mechanism.