JPH0639566U - Vehicle seat - Google Patents

Abstract

(57) [Summary] [Purpose] While improving the side support while seated, prevent the seat back and the side part of the seat cushion from interfering with each other when the seat back is laid down, and keep the same level with the bed. It's about to get. A seat cushion link that supports a seat cushion according to the reclining of the seat back by connecting a seat back and a seat cushion link that supports the seat cushion to a seat stand that leans forward with a link and a link rod. The seat cushion is bent, and the seat cushion link is bent to incline the seat cushion forward, thereby preventing the seat back and the side portions of the seat cushion from interfering with each other and making the seat flush with the bed or the like.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement in the structure of a vehicle seat that is particularly used in a vehicle such as a truck and in which the seat cushion is integrally tilted forward by operating the seat back in a fall position.

[0002]

[Prior art]

 BACKGROUND ART Conventionally, vehicle seats used in vehicles such as trucks have been designed so that the seat back can be operated in accordance with the operation of the operating rod so that a sufficient space can be secured for the driver to lie down for rest. A multi-seat that is flat with the bed provided at the rear of the seat is generally used.

[0003]

[Problems to be solved by the device]

 However, in the above-mentioned conventional one, the seat back is flattened integrally with the bed provided at the rear part of the seat in accordance with the operation of the operating rod so that the driver can secure a sufficient space for reclining for rest. In the case of the multi-seat, in order to allow the driver to lie down and take a rest, the height of the bed at the rear of the seat and the back of the seat back that has been laid down according to the operation of the operating rod are on the same plane. In order to keep the back of the seat and the back of the seat back flush with each other, the seat cushion and the surface of the seat back, including the surface of the seat back, interfere when the seat back falls down. It is necessary to flatten the side parts of the seat cushion and seat back, which may be the same. Then reduces the side support resistance, there is a disadvantage to be a cause of fatigue at the time of long-distance traveling.

Therefore, even when the seat back is laid down by operating the operating rod as necessary, it is possible to prevent interference with the seat cushion and to make the back surface of the laid-down seat back flat. The movable seat cushion can be fixed by a key lock member, and the seat cushion and the seat back that make up the seat together with the seat cushion are locked to the locking member of the seat cushion to integrally form the seat. A new product (Shokaisho 62-105836) has been proposed.

In the case of Japanese Utility Model Laid-Open No. 62-105836, when the seat back is laid down, the key lock member for fixing the seat cushion is temporarily released, and then the seat cushion is manually slid forward. When the seat back is slid forward, the lock of the striker attached to the seat back is released, and the seat back is then laid down forward. In order to lie down on the back, it is possible to lie down on the seat cushion of the seat back through multiple work steps, which is very complicated for the operator and this work is performed in a narrow cab. Things are almost difficult.

[0006] Therefore, the present invention solves the drawbacks of the above-mentioned conventional ones, and prevents the interference between the seat back and the seat cushion when the seat back falls down while ensuring the side supportability as a vehicle seat. This is intended to achieve coplanarity with a bed or the like arranged at the rear of the seat.

[0007]

[Means for Solving the Problems]

 Therefore, a seat cushion supported by a seat cushion link that is bendable via a support pipe on a seat stand inclined forward and a seat back equipped with a reclining mechanism are provided. The link and the link rotatably held at the lower portion of the seat cushion are connected by a link rod, and the link and the seat cushion link are integrally connected by a link rod.

[0008]

[Action]

 With the above configuration, in order to make the seat back flush with the bed or the like placed in the rear part of the vehicle seat, the seat back is laid down forward by the reclining mechanism equipped in the seat back. The link rod to be connected rises, and due to the rise of this link rod, the link that is rotatably held on the pipe surface under the seat cushion connected to one end of this link rod moves toward the rear of the vehicle seat. Since it will be pulled, the seat cushion link that is integrally connected with this link and that supports the seat cushion also bends by being pulled rearward, and as a result, the seat cushion The seat cushion surface bends forward as the seat cushion link is bent, and the seat cushion surface supports the seat cushion. Contact, it becomes supported by that mean.

The seat cushion is abutted and supported by the surface of the seat stand that supports the seat cushion, and the seat back is fixed and held in a reclining state at a right angle by a reclining mechanism that enables the reclining of the seat back. Accordingly, the side portion of the seat cushion and the side portion of the seat back can be made flush with the bed or the like arranged at the rear portion of the vehicle seat without interfering with the side portion of the seat cushion.

Further, when the seat back is returned to its original position for taking a seat, the reclining mechanism provided in the seat back is operated to erect the seat back so that the seat back is connected to the seat back. Since the link rod is urged downward, it supports the seat cushion through a link that is connected to one end of the link rod and is rotatably held on the pipe surface below the seat cushion. By pushing the seat cushion link, it becomes upright, so the seat cushion that was tilted forward rises, is supported and fixed in its original position, and can be used as a vehicle seat. is there.

[0011]

【Example】

 The invention will be further described with reference to the embodiments shown in the drawings. (1) is a vehicle seat comprising an embodiment of the present invention, and this vehicle seat (1) has a bed (15) and the like arranged at the rear part thereof and a seat stand (3) inclined forward. ) A seat cushion (2) supported by a seat cushion link (5) via a support pipe (4), and a seat back (6) equipped with a reclining mechanism (7).

A seat back (6) that can be laid down by the reclining mechanism (7) and a seat cushion (2) supported by a seat stand (3) are rotatably attached to the surface of the pipe (8). The link (9) that is held is connected by a link rod (10), and the link (9) that is rotatably held on the surface of the pipe (8) and the lower bottom portion of the seat cushion (2). The seat cushion link (5), which is integrally supported by fixing one end to (11) and is bendable, is integrally connected by a link rod (12).

The seat cushion link (5) integrally supported by fixing one end to the lower bottom portion (11) of the seat cushion (2) has a lower link (13) whose one end is fixed to the support pipe (4). ) And an upper link (14) fixed to the lower bottom portion (11) of the seat cushion (2), the lower link (13) and the upper link (14) are rotatably connected to each other, and the lower link The link rod (12) is connected to (13) so that the link rod (12) can be bent and upright by pulling and pushing.

Since the present invention has the above-mentioned configuration, in order to make it flush with the bed or the like (15) arranged at the rear portion of the vehicle seat (1), the seat back (6) is replaced by the seat back (6). By reclining with the reclining mechanism (7) equipped in (6), the link rod (10) connected to this seat back (6) rises, and by this link rod (10) rise, A link (9) connected to one end of the link rod (10) and rotatably held on the surface of the pipe (8) under the seat cushion (2) is a vehicle seat (1). The seat cushion link (5) is connected to the link (9) and supports the seat cushion (2) through the link rod (14) because the seat cushion link (5) is pulled backward. Similarly, the lower link (13) that constitutes the seat cushion link (5) is also pulled rearward, so that the seat cushion link (5) is bent around the connecting portion with the upper link (14) as a fulcrum. As a result, the seat cushion (2), which is held substantially horizontally, tilts forward due to the bending of the seat cushion link (5), and the seat cushion (2) is tilted forward under the seat cushion (2). The bottom portion (11) comes into contact with and is supported by the surface of the seat stand (3) supporting the seat cushion (2).

The seat cushion link (5) is bent forward to incline, and the seat cushion (2) is abutted and supported by the surface of the seat stand (3) supporting the seat cushion (2). On the other hand, the seat back (6) is fixed and held in a reclining state at a right angle by the reclining mechanism (7) that allows the seat back (6) to recede, so that the side portion of the seat cushion (2). (16) and the side part (17) of the seat back (6) can be prevented from interfering with each other and can be flush with the bed (15) arranged at the rear part of the vehicle seat (1). It is a thing.

Further, when the seat back (6) is returned to its original position for taking a seat, the reclining mechanism (7) provided in the seat back (6) is operated to raise the seat back (6). As a result, the link rod (10) that is connected to the seat back (6) and that has risen due to the reclining of the seat back (6) is urged downward, and therefore the link rod (10). A seat cushion link (5) that supports the seat cushion (2) through a link (9) that is connected to one end of the seat cushion and is rotatably held on the lower surface of the seat cushion (2) on the surface of the pipe (8). The seat cushion link (5) that has been bent is erected by pressing the link (9). The upright seat cushion link (5) supports and fixes the seat cushion link (5) in its original position, so that the seat cushion link (5) can be used as a vehicle seat (1).

[0017]

[Effect of device]

 As described above, the seat cushion can be tilted forward in response to the seat back lying down to prevent interference between the seat back and the side portions of the seat cushion that secure the side support of the occupant. Since it is possible to use a bucket type seat with excellent performance, it is possible to reduce fatigue of the occupant and it is possible to secure the same plane with the bed etc. arranged behind the seat when the seat back falls. Is to have.

[Brief description of drawings]

FIG. 1 is a diagram showing an operating state of a vehicle seat that is an embodiment of the present invention.

FIG. 2 is an enlarged perspective view of a main part of a link mechanism that controls the operating state of the seat.

FIG. 3 is a simplified diagram showing an operating state of the link mechanism.

FIG. 4 is a diagram showing a state when the seat back is folded down.

[Explanation of symbols]

 1 Vehicle Seat 2 Seat Cushion 3 Seat Stand 4 Support Pipe 5 Seat Cushion Link 6 Seat Back 7 Reclining Mechanism 8 Pipe 9 Link 10 Link Rod 11 Lower Bottom Part (of Seat Cushion) 12 Link Rod 13 Lower Link 14 Upper Link 15 Bed etc. 16 Side part (of seat cushion) 17 Side part (of seat back)

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Nobuo Ishii No. 8 Tsutana, Fujisawa City, Kanagawa Prefecture Isuzu Motors Co., Ltd. Fujisawa Plant (72) No. 8 Naomi Yoshimi, Fujisawa, Kanagawa Prefecture Isuzu Motors Co., Ltd. Fujisawa Plant (72) Inventor Hiroshi Hasegawa 8 Tsutana, Fujisawa City, Kanagawa Prefecture Isuzu Motors Co., Ltd. Fujisawa Plant (72) Inventor Yoshinori Ito 8th Tsutana, Fujisawa City, Kanagawa Prefecture Isuzu Motors Co., Ltd. (72) Inventor Shigeki Tahara, No.8, Tsutana, Fujisawa City, Kanagawa Prefecture, Isuzu Motors Co., Ltd., Fujisawa Plant (72) Creator Toshihiko Koreeda, No. 3-25-1, Tonomachi, Kawasaki-ku, Kawasaki City, Kanagawa Isuzu Motors Co., Ltd. (72) Hagita Sadaharu 3623-1, Hibarigaoka, Zama City, Kanagawa Prefecture

Claims (1)

[Scope of utility model registration request] 1. A seat cushion, which is supported by a seat cushion link that is bendable via a support pipe on a seat stand that is inclined forward, and a seat back that is equipped with a reclining mechanism. A vehicle seat in which a seat back and a link rotatably held under a seat cushion are connected by a link rod, and the link and the seat cushion link are integrally connected by a link rod.