JPS6242833Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a seat for an automobile, particularly a seat that is most suitable for a two-door vehicle.

In a two-door type automobile, the front seat gets in the way when getting in and out of the rear seat, so a means for moving the front seat is provided. For example, a reclining device is installed on the front seat so that the seat back can be reclined, one in which the entire front seat slides forward via a slide rail, and one in which only the seat back rotates on a plane toward the center of the vehicle. Many seats have been developed and put into practice, including those in which the entire front seat is rotated on a plane toward the center of the vehicle body via curved rails. However, each of the conventional sheets has advantages and disadvantages, and there is still room for improvement. For example, reclining type front seats or front seats that rotate only the seat back have the advantage of widening the space above the vehicle interior when getting in and out, but since the rear of the seat cushion exists in the area where the footwells are inserted and exited, it is difficult to get in and out. Front seats that use slide rails provide sufficient space above and for passengers to get in and out of the vehicle, but if the slide rails or brackets are exposed on the floor, it may be difficult to get your feet out. There are additional problems in that it tends to get in the way of insertion and requires a complicated slide mechanism, resulting in high costs.

The present invention was developed focusing on the above points, and is intended to provide a forward-folding automobile seat that can be advantageously used as the front seat of a two-door type vehicle. The entire seat can be tilted diagonally forward toward the center of the vehicle using a relatively simple mechanism for folding forward, and the corner of the seat cushion, which is the most problematic area for getting your feet in and out when getting on and off, is moved toward the center of the vehicle. By moving the vehicle diagonally forward and upward, the aim is to ensure sufficient space for boarding and alighting there.

The details will be explained below based on the embodiment shown in the drawings. First, FIG. 1 shows a two-door truck type vehicle 1 with a high riding position, and schematically shows a front seat 3 that can be folded forward while a rear seat 2 is fixed in position. The seat cushion 4 of the front seat 3 has front supports 6a and 6b for supporting the seat cushion 4 with respect to the floor 5.
And rear supports 7a and 7b are provided on the left and right sides, respectively. Specifically, as shown in FIG. 5, the support frame 8 and the leg support frames 9a, 9b are attached to the cushion frame (not shown) of the seat cushion 4, and the front supports 6a, 6b and the rear support 7 are attached.
a, 7b are combined and provided on the leg support frames 9a, 9b. However, in the illustrated example, the floor surface is high on the leg support frame 9b side because the space 10 for the transmission (not shown) and other related equipment is located below, and the leg support frame 9b is connected to the front support 6b and the rear. A bracket arm 11 which also serves as the support body 7b is directly fixed to this high floor. The front support body 6b of this bracket arm 11
An inclined pivot shaft 12b is provided at a portion corresponding to the pivot shaft 12b, and the leg support frame 9b is made rotatable relative to the bracket arm 11 via this pivot shaft 12b. Note that the rear support body 7 of the bracket arm 11
A locking pin 13 is installed in a portion corresponding to b, and a locking hook 15 provided on a rod 14 is placed in a corresponding portion below the leg support frame 9b. This rod 14 has a lever 16 at its end, and by rotating the lever 16, the locking hook 15 is opened.
The locking pin 13 can be engaged with or unlocked from the locking pin 13.

The floor surface on the leg support frame 9a side is low, and front legs 6a and rear legs 7a as supports are attached to the front and rear positions of the leg support frame 9a, respectively, to keep the seat cushion 4 horizontal with respect to the plane of the floor 5. It is arranged so that it can be increased. The upper part of the front leg 6a is welded to the leg support frame 9a, and the lower part is connected to a bracket 17 fixed to the floor 5 via an inclined rotation shaft 12a. The upper part of the rear leg 7a is fixed to the leg support frame 9a, and the lower part of the rear leg 7a is not fixed to the surface of the floor 5, but can simply be brought into contact with and separated from the surface of the floor 5.

In order to support the seat cushion 4, front supports 6a are provided on the left and right sides of the seat cushion 4 (in the illustrated example, the door side A and the vehicle center side B in FIG. 2). , 6b and the rear supports 7a, 7b are not limited to the illustrated example, but can be appropriately selected depending on the vehicle type, floor structure, seat structure, and other conditions.

By the way, the inclined rotation shafts 12a and 12b provided on the front supports 6a and 6b are located on the same inclination line X in the inclination direction with respect to the plane of the floor 5,
It is something that will be placed. The rotation shafts 12a and 12b serve as rotational fulcrums for the seat cushion 4 and, by extension, the entire seat 3, and as described above, they are tilted at positions on the same slope line X in the direction of inclination with respect to the plane of the floor 5. The greatest feature of the present invention lies in the arrangement of the rotating shafts 12a, 12b. Each of the inclined rotation shafts 12a and 12b has a collar 1.
8, washer 19, E-ring 20, etc., are combined to form a reliable and safe pivot point (FIGS. 3 and 4). In FIG. 3, 9b' is an auxiliary bracket welded to the leg support frame 9b, and the rotating shaft 12b is inserted through this auxiliary bracket 9b'.

As a result of arranging the inclined rotation shafts 12a and 12b on the same inclined surface X as described above, the front support body on the door side A (the front leg 6a on the illustrated side) has the rotation shaft 12a near the floor, The front support body on the center side of the vehicle body (in the illustrated example, the front portion 6b of the bracket arm 11) has a rotation axis 1 near the seat cushion.
2b will be provided. Note that although the illustrated example describes a separate type assist front seat, in the case of a bench type front seat, the above-mentioned inclined line X may be directed diagonally upward from the assist side to the driver side. , or vice versa.

Next, the effect will be explained. First, by rotating the lever 16, the locking hook 15 is removed from the locking pin 13 to release the lock, and then, by placing a hand on the appropriate position of the seat 3 and pushing it forward, the front support body 6 is released.
Inclined rotation shafts 12a, 12b provided at a, 6b
The seat cushion 4 and the entire seat 3 will "fold forward" with the rotation fulcrum at , but both rotation fulcrums are located on the same slope line shaped rotation shaft 12a,
12b, the seat 3 as a whole "tilts forward diagonally toward the center of the vehicle" and the corner portions 22 of the seat cushion 4 and the seat back 21 lift diagonally forward and upward toward the center of the vehicle. This will result in a state of being affected. In FIG. 6, 22' is the corner when lifted forward and upward. That is, the leg support frame 9b on the center side of the vehicle body B rotates by _one small angle Θ with respect to the reference line Y along the upper surface of the floor 5 in FIG.
The corner a rotates by a large angle Θ _two times, and the corner 22 is raised diagonally forward and upward toward the center of the vehicle. And the rear support 7 on the door side A
At the same time, a also moves diagonally forward and upward toward the center of the vehicle body. When the seat 3 is tilted to a certain angle, the seat back 21 interferes with a part of the vehicle body, such as a front windshield, and the seat 3 is prevented from tilting diagonally forward toward the center of the vehicle body any further. In order to return the entire seat 3 to its original position, it is sufficient to perform the reverse operation to engage the locking hook 15 with the locking pin 13 to prevent the seat from falling forward unnecessarily.

As explained above, according to the present invention, among the front and rear supports that support the seat cushion against the floor, the front support has a structure in which the front support has a structure in which the seat cushion is tilted in the direction of inclination to the floor plane and on the same inclination line. A pivot point is provided, and the rear support is in contact with the floor.
Because the seat can be moved forward, if you push it forward, the seat will not simply fall forward, but will tilt diagonally forward toward the center of the vehicle via the rotation fulcrum on the same inclination line, causing the corner of the seat on the door side and The rear support body is lifted diagonally forward and upward, and as a result, the space for getting in and out of the rear seat is greatly expanded.In addition to the rear support body, there is also a slide rail that can easily be seen on the floor. Since there are no brackets, etc., it is easy to get in and out of the rear seat.In addition, this forward-folding automobile seat has the same slanted rotation axis on the front support for tilting diagonally forward toward the center of the vehicle. Since it is only provided as a rotation fulcrum on the inclined line, there is no need for conventional slide rails or other means for moving the seat, and there are many advantages such as sufficient cost reduction.

In the above explanation, the front seat was explained as a seat that does not have a reclining device, but it is free to use a reclining device as well. You are also free to use the folding seats. Furthermore, if a slide rail is provided between the cushion frame and the support and the seat frame and slide rail are integrated so that the slide rail can also be tilted forward as the seat cushion is tilted forward, both the sliding and forward tilting functions can be achieved. It is also possible to apply it to a sheet.
Further, it goes without saying that the front support body is not limited to being provided one on each side, but may be a single front support or a plurality of three or more.

[Brief explanation of the drawing]

Fig. 1 is a schematic side view of a general two-door type automobile, Fig. 2 is a front view of an assist-side front seat according to an embodiment of the present invention, and Figs. 3 and 4 are tilted rotational seats. Figure 2 is an enlarged front view of parts and parts showing how the shaft is attached, Figure 5 is a perspective view of the main parts of a forward-folding automobile seat that is tilted diagonally forward, and Figure 6 is a front view of the main parts of an automobile seat that is tilted diagonally forward. It is an explanatory view showing the state where it was made to lean forward obliquely to the side. In the figure, 3...front seat, 4...seat cushion, 5...floor, 6a, 6b...front support body, 7a, 7b...rear support body, 9a, 9b...
...Leg support frame.

Claims (1)

[Scope of utility model registration request] Of the front and rear supports that support the seat cushion against the floor, the front support is provided with a rotation fulcrum at a position on the same inclination line in the direction of inclination with respect to the floor plane, and the rear support is 1. A forward-folding seat for an automobile, characterized in that the seat can be freely moved toward and away from a floor, and the entire seat can be tilted diagonally forward toward the center of the vehicle body via the rotation fulcrum.