JPH0353932Y2 - - Google Patents

Description

[Detailed description of the invention] "Industrial application field" This invention consists of a seat side rail that is fixed to the seat, and a car body side rail that is slidably fitted to the seat side rail and fixed to the floor of the car body. The present invention relates to a seat slide device in which a pair of rail units consisting of the following are arranged in parallel under the seat.

``Prior Art'' A pair of rail units consisting of a seat side rail fixed to the underside of the seat and a vehicle body side rail slidably fitted to the seat side rail and fixed on the floor surface are installed under the seat. Seat sliding devices arranged parallel to the seat are used in almost all automobiles today.

Figure 2 shows the structure and installation method of a general seat slide device.

Mounting members 7 and 8 fixed to the vehicle body include a locking member 4 that is integrated with the vehicle body side rail 3;
It has mounting brackets 5 and 6 at the front and rear.

The front mounting bracket 5 is curved along the front edge of the front mounting member 7, and ensures the support force of the entire seat slide device in the longitudinal direction.

In these seat slide devices, the left and right rail units must be parallel. Further, the locking holes 9 of the locking member 4 must be maintained in constant mutual positions in both the left and right rail units.

``Problem that the invention aims to solve'' Although the seat slide device is required to have the above-mentioned performance, when installing it on the car body, due to errors on the car body side, the positional relationship of the left and right rail units may be incorrect. If this happens, there is a problem that the seat may not slide smoothly due to the deviation in parallelism, or the locking hole may become incorrect, causing the sheet to become unable to be locked.

SUMMARY OF THE INVENTION In view of the above-mentioned conventional problems, it is an object of the present invention to provide a seat slide device that can easily adjust the front and rear positioning and parallelism of left and right rail units at the final installation stage.

``Means for Solving the Problems'' The gist of the present invention for solving the above problems is as follows: A seat side rail fixed to the seat; In a seat slide device, a pair of rail units consisting of a vehicle body side rail fixed to the floor of the seat are arranged parallel to each other under the seat.Mounting brackets fixed to the vehicle body are provided at the front and rear of each rail unit. A pair of screw holes are provided on the left and right sides of the pair of front mounting bracket mounting bolt holes on the vehicle body, and a small adjustment screw that contacts the vehicle body side mounting surface and adjusts the longitudinal position of the vehicle body side rail is screwed in. The present invention resides in a seat slide device characterized in that it is fitted.

``Function'' If the left and right rail units are installed on the vehicle body and there is a difference in their front and rear positions, set the one that protrudes forward as the positive side, and tighten the adjustment screws provided on the other rail unit evenly on the left and right sides. By screwing in, the rails on the vehicle body side of the rail unit move forward, and when the left and right sides are at the same position, fix the mounting bolts.

If there is an error in the parallelism of both the left and right rail units, unequally screw in the adjusting screws of either the left or right rail unit in the direction that corrects the parallelism to correct the parallelism of the left and right rail units. Fix the mounting bolts in place.

If correction is difficult with only one side of the rail unit, adjust each adjusting screw on both rail units to achieve an average degree.

If the mounting members on the vehicle body are not balanced at the front and rear, or if the vehicle body is distorted during use, both the left and right rail units may have differences in their front and rear positions and errors in parallelism. Therefore, by carrying out the adjustment operations simultaneously and appropriately, it is possible to secure the correct position of both rail units.

“Embodiment” An embodiment of the present invention will be described below based on the drawings.

FIG. 1 shows an embodiment of the present invention, showing the left rail unit 10 when viewed from the front of a pair of rail units 10 and 20 that constitute a seat slide device 30. As shown in FIG.

The seat side rail 12 is fixed to the underside of the seat (not shown), while the vehicle body side rail 13 is integrally connected to a locking member 14 by spot welding or the like.

A sliding member such as a ball or roller is interposed between the seat side rail 12 and the vehicle body side rail 13, but it is omitted in the drawing.

The distal end of the locking member 14 forms a mounting bracket 15 and is bent downward somewhat sharply.

A bolt hole 16 for connection to the mounting member 7 of the vehicle body is bored approximately in the center of the mounting bracket 15.

Adjustment screw holes 17 are provided at equal positions on the left and right sides of the bolt hole 16 and are aligned with adjustment screws 18a and 18b.
Note that one side surface of the lock member 14, that is, the side surface facing the other pair of rail units 20, forms a vertical edge surface, and is used for a plurality of locks. A small hole 19 is provided.

Next, the action will be explained.

A pair of rail units 20, 30 constituting the seat slide device 30 are attached to the front and rear mounting members 7 of the vehicle body.
and 8 (Fig. 2) and installed, the right rail unit 2 (not shown in Fig. 1)
0, if the rail unit 10 has shifted backwards, loosen the mounting bolts (not shown), tighten the adjustment screws 18a and b evenly, and extend the rail unit 10 as a whole forward. When the left and right rail units 10 and 20 are in the same position, tighten the mounting bolts to fix them.

If the right rail unit 20 (not shown) is displaced rearward with respect to the left rail unit 10, the same operation as performed for the rail unit 10 may be performed for the right rail unit 20.

In addition, if the left and right rail units 10, 20 are not parallel, for example, if the right rail unit 20 is set as positive, the adjusting screws 18a and 18b of the left rail unit 10 may be tightened slightly unevenly. to adjust the parallelism.

For example, in FIG. 1, the adjustment screw 18a
If you screw in the adjustment screw 18b a little more,
The rail unit 10 as a whole is swung counterclockwise in the figure.

In order to make the above adjustment possible, the bolt holes of the rear mounting bracket (not shown) that correspond to the rear mounting member 8 on the vehicle body side (Fig. 2) must also be made slightly larger than the bolts. However, when adjusting the parallelism of the front-back alignment, the holes are not that big, so a hole a little larger than a normal hole is sufficient.

``Effect of the invention'' According to the seat slide device of the invention, the misalignment of the mounting position of both rail units that often occurs during the final assembly stage on the line can be corrected by making only a few changes without changing the conventional structural members. By simply adding a machine screw and a small screw hole, adjustment can be easily made and assembly man-hours can be reduced.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing one embodiment of the present invention;
The figure is a general structure and installation diagram of a conventional seat slide device. 7... Front mounting member on the vehicle body, 8... Rear mounting member on the vehicle body, 10, 20... Rail unit,
12...Seat side rail, 13...Vehicle side rail, 14...Lock member, 15...Mounting bracket, 16...Mounting bolt hole, 17a, 17b...
...Screw hole for adjustment, 18a, 18b...Small screw for adjustment, 19...Small hole for locking, 30...Seat slide device.

Claims (1)

[Scope of Claim for Utility Model Registration] A pair of rail units consisting of a seat side rail fixed to the seat and a vehicle body side rail slidably fitted to the seat side rail and fixed to the floor of the vehicle body. In a seat slide device that is arranged parallel to the bottom of the rail unit, mounting brackets are provided at the front and rear of each rail unit to be fixed to the vehicle body, and bolt holes for mounting to the vehicle body of the pair of left and right front mounting brackets are installed on both sides. 1. A seat slide device, characterized in that a pair of screw holes are respectively provided, and adjustment screws are screwed into the screw holes for adjusting the longitudinal position of the rail on the vehicle body side by coming into contact with the mounting surface on the vehicle body side.