JP2596336Y2 - Seat slide device - Google Patents

Description

[Detailed description of the invention]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat slide apparatus for adjusting and moving an automobile seat back and forth, and more particularly to a mounting structure of a foot mounted on a lower rail.

[0002]

2. Description of the Related Art As shown in FIG. 4, a foot mounting structure of a conventional seat slide apparatus is such that a foot 22 is fixed by caulking with two rivets 23 and 24 to the lower surface of an end of a lower rail 21 or a rail. Generally, the end of the lower rail 21 and the foot 22 are fixed by welding in order to secure the strength of the lower rail 21.

[0003]

However, when the vehicle suddenly stops or collides, a very large impact force acts on the vehicle seat, and a force acting downward on the front end of the seat slide device. Is generated, and a force acting upward is generated at the rear end. Therefore, for example, in the conventional seat slide device shown in FIG. 4, an upward force shown by an arrow F acts, and the force concentrates near rivets 23 and 24 for attaching the foot 22 to the lower rail 21. Among them, the power is particularly concentrated on the rivet 24.
As a result, the lower rail 21 is separated from the foot 22 and the rivet 24 comes off from the head. That is, the force acting in the upward direction could not be distributed to the rivets 23 and 24.

[0004] As a measure against the peeling of the above-described structure, the method of welding the end of the lower rail 21 to the foot 22 to secure the strength requires a high cost, an increase in the number of working steps, and heat due to welding. There was a problem that the lower rail 21 was deformed.

[0005]

DISCLOSURE OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and the two rivets receive the respective forces against the vertical force to ensure the strength and to prevent the lower rail from peeling off from the foot. At least one of the feet fixed to both ends of the lower part is integrally provided with a rising piece composed of a rising part and a horizontal part at a contact part that comes into contact with the lower rail,
A seat rail is provided, wherein an end of a lower rail is held between the rising piece and the contact portion.

[0006]

When an upward force acts on the lower rail 1, the lower rail 1 is pulled upward, but the end of the lower rail 1 is clamped by the rising piece 8 of the foot 4 and the lower rail 1 by the rivet 9, so that the lower rail 1 Since the first rail 1 is pressed, the lower rail 1 can be prevented from peeling off.

Similarly, when a downward force acts and the lower rail is pressed downward, the contact portion 7 of the foot 4
And the rivet 10 receive the force acting downward.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a seat slide apparatus 1 according to the present invention, wherein a lower rail 1 is fixed to a floor of a vehicle body by feet 3 and 4, and an upper rail 2 is slidably mounted on the lower rail 1. A roller 5 for assisting the sliding of the upper rail 2 is provided between the lower rail 1 and the upper rail 2. In FIG. 2, reference numeral 1 denotes a lower rail having a substantially C-shaped cross section. The lower rail 1 has an upright piece 1b extending upward from both ends of a bottom piece 1a, and a horizontal portion 1C extending inward from an end of the upright piece 1b. And a lower piece 1d extending downward from the portion. Reference numeral 2 denotes an upper rail in which a pair of L-shaped pieces are fixed back to back to form a substantially inverted T-shape, and a bracket on the seat cushion side is integrally provided.

A roller 5 for assisting the sliding of the upper rail 2 is provided between the bottom 1a of the lower rail 1 and the lower part of the upper rail 2.

At one end of the lower rail 1, a foot 3 is fixed to a rivet (not shown), and one end of the lower rail 1 is fixed to the floor of the vehicle body. A foot 4 is fixed to the other end of the lower rail 1 by rivets 9 and 10,
The other end of the lower rail is mounted on the floor of the vehicle body.

The foot 4 attached to the other end of the lower rail 1 comprises a fixing part 6 and a contact part 7, and the fixing part 6 has a mounting hole 6 for fixing to the floor of the vehicle body.

The contact portion 7 is integrally provided with a substantially square rising piece 8 composed of a rising part 8a and a horizontal part 8b. The rising piece 8 is raised by the thickness of the lower rail 1 to raise the horizontal part 8b. Are bent so as to be parallel to the contact portion 7. The rising piece 8 is provided with a hole 8a through which the rivet 9 is inserted. The end of the lower rail 1 is brought into contact with the rising part 8a of the foot 4, and the rising piece 8 and the lower rail 1 are clamped by the rivet 9. ing.

Further, by fixing the hole 7a of the contact portion 7 and the lower rail 1 with a rivet 10, a force acting downward is received by the contact portion 7.

[0014]

As is apparent from the above, according to the present invention, at least one of the feet fixed to both ends of the lower rail is integrally provided with a rising piece composed of an upright portion and a horizontal portion at a contact portion that comes into contact with the lower rail. Provided, characterized in that the end of the lower rail is sandwiched between the rising piece and the abutting portion, and each rivet exerts a force against a force acting upward or downward. The effect of increasing the durability of the rivet was obtained because of the configuration of receiving the rivet.

[0015] Further, with respect to the force acting in the upward direction, which is extremely dangerous in an automobile seat, the lower rail is riveted through the rising piece, so that the lower piece prevents the lower rail from peeling off. Could be obtained.

[0016]

[Brief description of the drawings]

FIG. 1 is a perspective view of an embodiment of the present invention.

FIG. 2 is a perspective view of an embodiment of the present invention.

FIG. 3 is an overall view of the present invention.

FIG. 4 Conventional example

[0017]

[Explanation of symbols]

 1. Lower rail 2. Upper rail 3. Foot 4. Foot 6. Fixing part 7. Contact part 8. Starting piece 8a. Standing part 8b. Horizontal section

Claims (1)

(57) [Scope of request for utility model registration] A first rail having an upper rail and a lower rail;
In a seat slide device in which an end of a lower rail is fixed to a floor of a vehicle body via a foot, a foot fixed to an end of the lower rail is fixed to a contact portion that contacts an end of the lower rail and to a floor of the vehicle body. A fixed portion, and a standing portion having a height substantially equal to the thickness of the lower rail by cutting off a part of the contact portion of the foot, and a rising portion substantially parallel to the contact portion. A seat slide device, wherein a piece is formed integrally with a contact portion, and an end of the lower rail is held between the contact portion of the foot and the rising piece.