JP2549256Y2 - Power slide device for automotive seats - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power slide device for adjusting the front and rear positions of a vehicle seat by the driving force of an electric motor.

[0002]

2. Description of the Related Art A power slide device mounted on an automobile seat having a rotation axis of a conventional tilt device mounted laterally,
The structure is as shown in FIGS. That is, a lead screw (4) provided on the upper rail (5) side on which the seat cushion is placed and rotated by the driving force of the motor (M), and a nut (3) into which the lead screw (4) is screwed. And a box (2) which accommodates the nut (3) and is fastened with a fastening member comprising a bolt (21) and a nut (22) on a bracket (11) fixed to the lower rail (6). The box (2) has a bolt (21) inserted from a bottom surface of the box (1) into a through hole provided in the bracket (1), and is fastened with a nut (22) from the back side of the bracket (1).

[0003]

In the conventional product, the box (2) on the bracket (1) is connected to the fastening members (21) (22).
The fastening members (21) and (22) are prevented from protruding upward with respect to the box (2).
This is because the fasteners (21) (2) are located above the box (2).
When 2) protrudes, the fastening members (21) and (22) come into contact with the rotating shaft (7) of the tilt device that is laterally mounted on the upper rail (5) side, and the movement of the upper rail (5) in the front-rear direction is restricted. That's because. In the figure, reference numeral (8) denotes a reinforcing bracket which is horizontally mounted on the left and right upper rails (5), and a motor (M) is mounted on the reinforcing bracket (8). (51)
Supports the end of the lead screw (4) rotatably,
5 shows a bearing bracket fixed to the upper rail (5) side.

[0004] The power slide device sometimes breaks down due to disconnection of the harness, breakage of the motor, and the like. In such a case, it is necessary to remove the seat from the vehicle floor on which the seat is installed and repair the seat. However, in the conventional product, even if the nut (22) of the fastening material shown in FIG. 7 is removed, the box (2) cannot be moved because the bolt (21) is hooked on the bracket (1). There was a problem that could not be removed. Therefore, an object of the present invention is to enable the box (2) to be moved and the seat to be removable from the vehicle floor.

[0005]

In order to achieve the above object, the present invention is characterized in that the conventional bracket is provided with a slit for moving the box in a direction perpendicular to the axial direction of the lead screw. The slit has a horizontally elongated hole, and has an inner diameter in the short direction that is equal to or more than the outer diameter of the bolt for fastening the box, and an inner diameter in the longitudinal direction that is substantially equal to or longer than the entire length of the bolt.

[0006]

In order to remove the box from the bracket, the nut is removed from the bolt for fastening the box, and then the box is rotated, so that the bolt escapes from the slit of the bracket.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. 7, the same reference numerals as those in FIG. 7 denote the same members, and a description thereof will be omitted. That is, in the present invention, a horizontally elongated slit (10) is formed in the bracket (1) of the conventional product.
Is provided. As shown in FIG. 3, the slit (10) is a long hole that is long in a direction perpendicular to the axial direction of the lead screw (4), and has an inner diameter (L ₂ ) in the longitudinal direction with respect to the entire length of the bolt (21). The inner diameter (L ₁ ) in the short direction is slightly larger than the outer diameter of the bolt (21).

[0008] The bolt (21) is inserted through a slit (1) through a through hole (2a) provided at the bottom of the box (2) in the conventional manner.
The box (2) is fixed to the bracket (1) as shown in FIGS. 1 and 2 by being inserted into the bracket (1) and fastened by the nut (22). If the power slide device or the like breaks down and it is necessary to remove the seat from the vehicle floor, after removing the nut (22), the box (2) is turned over as shown in FIG. Can escape from the slit (10). This bolt (21)
As a result, the upper rail (5) provided with the power slide device is detached from the lower rail (6), so that it is possible to repair a failed part.

[0009]

According to the present invention, the box accommodating the nut can be removed from the bracket on the lower rail side only by providing a slit in the bracket of the conventional product. Therefore, the structure is simple, and the disadvantage of the conventional product can be eliminated.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a main part of the present invention.

FIG. 2 is a sectional view taken along the line II-II in FIG.

FIG. 3 is a perspective view of the bracket according to the present invention.

FIG. 4 is a cross-sectional view illustrating a state in which the box according to the present invention is removed from the bracket.

FIG. 5 is a perspective view showing a frame structure of a vehicle seat provided with a conventional power slide device.

FIG. 6 is an enlarged view of a portion A in FIG. 5;

FIG. 7 is a sectional view taken along the line VII-VII in FIG. 6;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bracket 2 Box 3 Nut 4 Lead screw 10 Slit provided in bracket

Claims (1)

(57) [Scope of request for utility model registration] 1. A lead screw provided on an upper rail side and rotated by a driving force of a motor, a nut into which the lead screw is inserted, and a nut accommodating the nut and fastened to a bracket fixed to a lower rail with a fastening material. A power slide device for a vehicle seat comprising a box, wherein the bracket is provided with a slit for moving the box in a direction orthogonal to an axial direction of a lead screw.