JPH0576858U - Vehicle seat slide rails - Google Patents

Abstract

(57) [Summary] [Object] The present invention relates to a slide rail for a vehicle, and in particular, is characterized by improving rigidity and good appearance at an end portion of a lower rail. A vehicle slide rail according to the present invention is a vehicle slide rail in which an upper rail provided on a seat side is slidably fitted and inserted into a lower rail having a leg portion fixed to a vehicle body floor surface through a bolt. In the above, the end surface of the lower rail is formed perpendicular to the longitudinal direction of the lower rail, and the leg portion arranged near the end surface has a through hole for penetrating the screw portion of the bolt.
The lower rail is formed with an opening that is aligned with the through hole and that allows the bolt to be inserted from the outside of the lower rail.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a slide rail for adjusting the front-back position of a vehicle seat such as an automobile seat, and more particularly to a new improvement for improving the rigidity and improving the appearance at the end portion of the lower rail.

[0002]

[Prior Art]

 A typical vehicle seat is equipped with slide rails for adjusting the front-back position of the seat. As shown in FIG. 6, a conventional slide rail 1 includes an upper rail 3 fixed to the bottom surface of a seat 2 and a reinforcing member 5 on the floor surface 4 of a vehicle body in which the upper rail 3 is slidably inserted in the front-rear direction. Mainly composed of a lower rail 7 and a lower rail 7 fixed thereto via bolts 6. On each bottom surface of both ends of the lower rail 7, box-shaped leg portions 8 are fixed to the side portions 7b via welded portions 9 (see FIG. 7). The leg portion 8 is fitted into a recess 10 formed on the top surface of the reinforcing member 5 and fixed to the reinforcing member 5 via the bolt 6. The structure of the lower rail 7 will be described in detail. As shown in FIG. 7, the end portion thereof has a notch portion 11 formed by cutting the top portion 7a and the side portion 7b. Further, the bottom portion 7c of the lower rail 7 is formed with an opening 12 which is exposed by the notch portion 11 and allows the bolt 6 to be inserted from the outside. The opening 12 is provided right above the leg portion 8. There is. The leg portion 8 is formed with a through hole 13 through which the screw portion 6a of the bolt 6 is passed, at a position aligned with the opening 12. Further, the notch 11 is covered with a synthetic resin cover 14 after the bolt 6 is screwed.

[0003]

[Problems to be solved by the device]

 Since the conventional vehicle slide rail is configured as described above, the following problems exist. That is, since the cutout portion 11 of the lower rail 7 needs to be covered with the synthetic resin cover 14, the appearance of the lower rail 7 becomes worse due to the difference in material between the lower rail 7 and the synthetic resin cover 14. Notch processing at the end was also required, which was a cause of cost increase. Further, the notch portion 11 weakens the rigidity of the end portion of the lower rail 7, and the leg portion 8 is extended to the side portion 7b of the lower rail 7 and fixed by welding in order to compensate for the rigidity. It was not an adequate solution to flexure.

The present invention has been made to solve the above problems, and in particular, at the end portion of the lower rail, the slide rail for a vehicle has improved rigidity and improved appearance. The purpose is to provide.

[0005]

[Means for Solving the Problems]

 A vehicle slide rail according to the present invention is a vehicle slide rail in which an upper rail provided on a seat side is slidably inserted into a lower rail having a leg portion fixed to a vehicle body floor surface through a bolt, An end surface of the lower rail is formed perpendicularly to the longitudinal direction of the lower rail, and a through hole that allows the threaded portion of the bolt to penetrate is formed in the leg portion arranged near the end surface. An opening is formed which is aligned with the hole and through which the bolt is inserted from the outside of the lower rail.

More specifically, the leg portion is formed in a box shape and fixed to the bottom surface of the lower rail with a rivet.

More specifically, the opening is formed to have the same diameter at the top and the bottom of the lower rail.

[0008]

[Action]

 In the vehicle slide rail according to the present invention, by forming the end surface of the lower rail perpendicular to the longitudinal direction of the lower rail, the rigidity of the end portion of the lower rail having the fixed leg portion is increased, and moreover, the lower rail. Even if an opening for inserting a bolt is formed in the, it is possible to maintain the rigidity of the opening.

[0009]

【Example】

 Hereinafter, preferred embodiments of a vehicle slide rail according to the present invention will be described in detail with reference to the drawings. It should be noted that the same or equivalent portions as those of the conventional example will be described using the same reference numerals.

In FIGS. 1 to 4, reference numeral 7 is a lower rail, and the lower rail 7 is an extruded product made of aluminum and has the same shape in the longitudinal direction. The end surface 7d of the lower rail 7 is formed vertically with respect to the longitudinal direction of the lower rail 7, that is, the direction along the sliding groove 20 for sliding the upper rail 3 (see FIG. 6).

A box-shaped leg portion 8 having a U-shaped cross section is arranged near the end surface 7d. The leg portion 8 has a through hole 13 through which the screw portion 6a of the bolt 6 penetrates at the bottom portion and a pair of flanges 8a at the top portion. The flange 8a is brought into contact with the bottom surface of the lower rail 7 and is fixed to the lower rail 7 by caulking with the rivet 21. The rivet is fixed by using the sliding groove 20.

Openings 12a, 12b for inserting the seat portion 6b of the bolt 6 (however, the head portion 6c when the seat portion 6b is not provided) are formed in the top portion 7a and the bottom portion 7c of the lower rail 7. The openings 12a and 12b have the same diameter, are formed by drilling, and are arranged vertically so as to be concentric with the through hole 13.

Further, as shown in FIG. 5, a reinforcing member 5 fixed by a bolt 22 is provided on the floor surface 4 of the vehicle body. A recess 10 is formed at the center of the top of the reinforcing member 5, and the recess 10 is provided with a through hole 10a for inserting the screw portion 6a of the bolt 6. Further, a female screw 23 aligned with the through hole 10a and screwed to the screw portion 6a is fixed to the back surface of the recess 10 by welding or the like.

Therefore, when assembling the lower rail 7 to the floor surface of the vehicle body, first, the leg portion 8 of the lower rail 7 is mounted in the recess 10 of the reinforcing member 5. Then, the bolt 6 is inserted into the openings 12a and 12b from the outside of the lower rail 7, and the screw portion 6a is passed through the through holes 13 and 10a. In this state, the bolt 6 is screwed into the female screw 23 with a tightening tool, for example, a hexagonal wrench inserted from the opening 12a, and the bolt 6 is tightened until the seat 6b is pressed against the bottom surface of the leg 8. As a result, the lower rail 7 is firmly fixed to the reinforcing member 5, and the fixing work of the lower rail 7 is completed. It goes without saying that such work is similarly performed at the front end portion and the rear end portion of the lower rail 7 arranged so as to bridge the reinforcing member 5.

[0015]

[Effect of the device]

 Since the vehicle slide rail according to the present invention is configured as described above, the following effects can be obtained. That is, by forming the end surface of the lower rail perpendicular to the longitudinal direction of the lower rail, the rigidity of the end portion is not weakened as in the conventional case, and the lower rail is made of aluminum to reduce the weight. Even when it is manufactured, the shape as extruded can be used, so the processing cost can be reduced, and it is suitable for mass production.

Further, it is possible to improve the appearance from the outside without the need for a conventional cover. And, the processing on the lower rail is very easy because it only processes the opening for inserting the bolt, and it is also suitable for mass production.

Further, when fixing the leg portions to the lower rails by rivets, welding work is not required, and since the lower rail end portions have sufficient strength, the side portions of the lower rails are reinforced. It is not necessary to attach the leg part like this, and the bottom part of the lower rail can be fixed so as to completely hide the leg part, thereby forming a good-looking lower rail.

[Brief description of drawings]

FIG. 1 is a perspective view showing a vehicle slide rail of the present invention.

FIG. 2 is a plan view showing a vehicle slide rail of the present invention.

FIG. 3 is a front view showing a slide rail for a vehicle of the present invention.

FIG. 4 is a side view showing a slide rail for a vehicle of the present invention.

FIG. 5 is a cross-sectional view showing a state in which a vehicle slide rail of the present invention is fixed to a floor surface of a vehicle body.

FIG. 6 is a cross-sectional view showing a conventional vehicle slide rail.

FIG. 7 is a perspective view showing an end portion of a conventional vehicle slide rail.

[Explanation of symbols]

 1 slide rail 2 seat 3 upper rail 4 vehicle body floor surface 6 bolt 6a screw portion 7 lower rail 7d end surface 8 leg portion 12a, 12b opening 13 through hole

Claims (3)

[Scope of utility model registration request] 1. An upper rail provided on a seat side,
In a slide rail for a vehicle, which is slidably inserted into a lower rail having a leg portion fixed to a floor surface of a vehicle body by a bolt, an end surface of the lower rail is formed perpendicular to a longitudinal direction of the lower rail. , The leg portion arranged near the end face has a through hole for penetrating the threaded portion of the bolt, and the lower rail has an opening aligned with the through hole and for inserting the bolt from the outside of the lower rail. A slide rail for a vehicle seat characterized by being formed. 2. The slide rail for a vehicle seat according to claim 1, wherein the leg portion is formed in a box shape and fixed to the bottom surface of the lower rail with a rivet. 3. The opening is formed with the same diameter at the top and bottom of the lower rail.
A slide rail for the vehicle seat described.