JPS6319232Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is a seat for use in a vehicle, in particular, a seat slide device consisting of a fixed rail fixed to the vehicle body and a movable rail that slides within the fixed rail, and a seat back and a seat back. The present invention relates to a vehicle seat equipped with a reclining device that can tilt relative to the seat.

This type of seat is constructed, for example, as shown in Figures 1 and 2. In the figures, 1 indicates the vehicle floor, 2 indicates the vehicle side sill, and 3 indicates the vehicle tunnel. A fixed rail 5 fixed to the sill 2 and tunnel 3 with bolts 4, and a movable rail 6 sliding within these fixed rails constitute a seat slide device. Such slide devices are provided on seat cushion frames 7 on both sides of the seat, and allow the seat to be adjusted in the front-rear direction. The seat back frame 8 is tiltable relative to the seat cushion frame 7, and for this purpose a reclining device is provided. The reclining device is constructed of a fixed part 9 attached to the seat cushion frame 7, and a reclining arm 10 to which the seat back frame 8 is attached, and which can be adjusted in its swing position relative to the fixed part 9.

Therefore, when the movable rail 6 is moved from the intermediate position indicated by the solid line A2 in FIG. The length is set so that it does not protrude from the fixed rail 5, and the amount of overhang of the seat cushion frame 7 forward from the seat slide device inevitably increases when the seat is in the forward position, that is, the amount of overhang. Therefore, at this time, it is necessary to increase the strength of the seat cushion frame 7 to prevent it from deforming, resulting in increased weight and cost.

Therefore, as shown in FIGS. 1 and 2, it has been proposed to support the front part of the seat cushion frame 7 on the floor 1 via rollers 11 and brackets 12; Not only does this protrude onto the floor 1, spoiling its aesthetic appearance, but it also becomes a nuisance when the seat is in a receded position. In addition, from these points of view, there is a limit to how far the rollers 11 and bracket 12 can be positioned forward, and since they do not move together with the seat cushion frame 7, the seat cushion frame 7 cannot be moved over the seat cushion frame 7 at the forward limit position of the seat. The hanging amount L (see FIG. 2) is large, and the strength of the seat cushion frame 7 still needs to be increased, so that the problems of weight and cost cannot be satisfactorily solved.

In this invention, the rear part of the movable rail is attached to the fixed part of the reclining device at two locations separated in the longitudinal direction, the rear part of the seat cushion is attached to the fixed part, and the front part of the movable rail is attached to the seat cushion through a support member. From the viewpoint that the above-mentioned problems can be solved by attaching the seat to the front end of the cushion, the present invention aims to provide a vehicle seat characterized by this structure.

Hereinafter, the present invention will be explained in detail with reference to illustrated embodiments.

FIG. 3 shows an embodiment of the present invention, in which the same parts as in FIGS. 1 and 2 are designated by the same reference numerals.

In the present invention, the fixed rail 5 is attached to the vehicle body using the same structure as the conventional one, and the structure in which the movable rail 6 is slidably fitted to the fixed rail is the same as the conventional one, but it is clearly shown in FIG. The rails 5 and 6 have a cross-sectional shape that does not deform or break even under the load in the P direction when overhanging, and rollers 13 are interposed between the two rails to reduce sliding resistance. Further, three attachment portions 6a, 6b, and 6c are set on the movable rail 6 in its longitudinal direction, and the seat cushion frame 7 is attached using these in the following manner.

That is, as shown in FIG. 3, the rear part of the movable rail 6 is attached to the fixing part 9 of the reclining device at two locations 6a and 6b spaced apart in the longitudinal direction, and the rear part of the seat cushion frame 7 is attached to the fixing part. It is attached at part 7a. Further, the front end of the seat cushion frame 7 is attached to the front portion 6c of the movable rail 6 via the support member 14.

In the vehicle seat of the present invention having such a configuration, the front end of the seat cushion frame 7 is connected to the support member 14.
Since the support member 14 is supported by the movable rail 6 of the seat slide device through the seat slide device, the support member 14 moves together with the seat during forward movement of the seat by the seat slide device, so that the seat cushion frame 7 is supported at any slide position of the seat. does not overhang from the support member 14. Therefore, the seat cushion does not need to be manufactured with special attention to its strength, and can be manufactured lightweight and at low cost.

In addition, the rear part of the movable rail 6 is attached to the fixed part 9 of the reclining device at two locations in the longitudinal direction, and the rear part of the seat cushion frame 7 of the fixed part is attached, so that the seat can be attached to the movable rail 6 of the seat slide device. As a result, the load applied to the seat cushion can be supported evenly and stably over the entire operating range of the seat slide device, that is, at any slide position of the seat, and unnecessary measures to strengthen the seat cushion frame can be avoided. There is no need to modify the vehicle body at all, making it less expensive and also more aesthetically pleasing.

Furthermore, for similar reasons regarding the seat cushion attachment structure, even if the fixed portion 9 of the reclining device is small, the seat cushion frame 7 can be attached to the movable rail 6, and the fixed portion 9 does not have to be large. It is also possible to reduce the weight in this respect.

[Brief explanation of the drawing]

Figure 1 is a rear view of a conventional vehicle seat;
3 is a side view of the vehicle seat of the present invention, and FIG. 4 is a cross-sectional view of the seat slide device used in the present invention. 5...Fixed rail, 6...Movable rail, 6a~
6c... Seat cushion attachment part, 7... Seat cushion frame, 8... Seat back frame, 9... Reclining device fixing part, 10...
Reclining arm, 13... Colo, 14...
Support member.

Claims (1)

[Scope of utility model registration request] A vehicle seat equipped with a seat slide device on both sides consisting of a fixed rail fixed to the vehicle body and a movable rail that slides within the fixed rail, and a reclining device that makes the seat back tiltable with respect to the seat cushion. , the rear part of the movable rail is attached to the fixed part of the reclining device at two locations spaced apart in the longitudinal direction, the rear part of the seat cushion is attached to the fixed part, and the front part of the movable rail is attached to the fixed part of the reclining device through a support member. A vehicle seat attached to the front end of the seat cushion.