JPH0544186Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field] The present invention relates to a mounting structure for a vehicle seat.

[Prior Art] Conventionally, for example, a front seat 1 of a two-door automobile as shown in FIG. 3 has a seat bottom 2,
It is composed of a seat back 3 and a headrest 4, and includes a reclining device 5 for tilting the seat back 3 forward and a slider device 6 for moving the front seat 1 in the front-rear direction. Although a detailed explanation will be omitted, the reclining device 5 and slider device 6 are such that when the reclining device 5 tilts the seat back 3 forward, the slider device 6 automatically moves the front seat 1 to the front end position. Linked to be moved.

The slider device 6 has a pair of left and right upper rails 7 fixed to the lower part of the seat bottom 2, and a pair of left and right lower rails 8 that support the upper rails 7 so as to be slidable in the front and back direction below the upper rails 7.
First and second cross members 11 and 12 are provided at the front and rear ends of each lower rail 8 to extend in the vehicle width direction on the floor panel 10 and project upward, that is, into the vehicle interior. first and second mounting brackets 13,1 for mounting on the
4 are respectively fixed at their upper parts.

By the way, when installing the front seat 1 described above, from the viewpoint of ease of carrying the front seat 1 into the vehicle interior and shortening the process of assembling the front seat 1 to the cross members 11 and 12, the method shown in FIG. As shown by the solid line in , after the front seat 1 is moved to the front end position with respect to the lower rail 8 and the front seat 1 is carried into the vehicle interior with the seat back 3 tilted forward, the first mounting bracket 1 is moved.
3, the cross member mounting part 13 extends downward from the front.
a (see FIG. 4) to determine the longitudinal position of the lower rail 8 by bringing it into contact with the inclined front wall 11a of the first cross member 11. In this state, as shown in FIG. Horizontal cross member mounting portion 14a of second mounting bracket 14 with hole 15
are fastened to the upper part of the second cross member 12 with bolts 16 and nuts 17.

Subsequently, as shown by the two-dot chain line in FIG. 3, the seat back 3 is raised and the front seat 1 is moved to the rear end position.
(Fig. 4) with bolt 18 and nut 19.
He is trying to fix it to the front wall part 11a of the cross member 11.

However, according to the above mounting structure, even if the cross member mounting portion 13a of the first mounting bracket 13 is once positioned with respect to the first cross member 11,
During the installation of the second mounting bracket 14, the lower rail 8 moves, and as shown by the two-dot chain line in FIG.
3a is separated from the first cross member 11. As a result, it becomes impossible to fasten the bolt 18, necessitating repositioning, or even if the bolt 18 can be fastened, the left and right lower rails 8 may be twisted. As mentioned above, if the left and right lower rails 8 are installed in a twisted state, locking becomes impossible, especially when adopting a double-side lock slider structure in which the left and right upper rails 7 are locked to the left and right lower rails 8 by a single locking device. A problem arises.

[Purpose of the invention] The present invention was made in view of the above-mentioned problems, and its purpose is to enable the lower rail of the seat to be accurately positioned and attached to the cross member when installing a vehicle seat. It is said that

[Structure of the invention] Therefore, the present invention is a mounting structure for a seat provided on a floor panel so as to be slidable in the front and back direction via a slider device, and the slider device is composed of an upper rail and a lower rail. A first mounting bracket is fixed in advance to the front end of the lower rail, and a second mounting bracket is fixed to the rear end of the lower rail, and each mounting bracket extends in the width direction of the vehicle body of the floor panel. The first mounting bracket is configured such that the cross member mounting portion and the cross member positioning portion thereof face each other inwardly at a relatively acute angle. The cross member is formed into an inverted U-shaped cross section with a space left at the top, into which the first mounting bracket is fitted, and the cross member mounting portion of the first mounting bracket is formed on the front and rear walls of the cross member. The lower rail is positioned in the longitudinal direction of the vehicle body in a state in which the cross member positioning portion and the cross member positioning portion are in contact with each other, and in this state, the first and second mounting brackets are fixed to each cross member. .

[Effects of the invention] In the present invention, the first mounting bracket fixed to the front end of the lower rail is configured to fit into the cross member from above, so that after the lower rail is positioned on the cross member, the lower rail can be moved in the front-rear direction. There is no movement, and the lower rail can be accurately positioned and attached to the cross member.

Therefore, there is no fear that the left and right lower rails will be installed in a twisted manner, so even in the case of a lock slider structure on both sides, there is no possibility that the lock will become impossible.

[Example] Examples will be described below.

FIG. 1 is a side view of a front seat for a two-door automobile according to the present invention, and this front seat has the same reference numerals as the conventional example shown in FIG. The structure is basically the same as the conventional example shown in FIG.

In this embodiment, the first mounting bracket 20 on the front end side of the lower rail 8 is formed to have a substantially inverted U-shape in cross section so as to partially fit into the first cross member 11 from above. When attaching the seat 1, the longitudinal position of the lower rail 8 relative to the first cross member 11 is accurately determined.

That is, as shown in FIG. 2, the upper part of the first mounting bracket 20 is fixed to the front end of the lower rail 8, and the lower part of the first mounting bracket 20 extends downward in the front direction and is attached to the first cross member 11. A mounting portion 20a for attaching the cross member to the cross member that abuts the inclined front wall portion 11a is provided, and a mounting portion 20a for attaching the cross member to the cross member is provided at a lower rear position of the mounting portion 20a.
A positioning portion 20b with respect to the cross member that abuts the inclined rear wall portion 11b is provided.

When installing the front seat 1, attach the mounting part 2.
After fitting the first mounting bracket 20, which has a substantially inverted U-shaped cross section and is composed of a positioning portion 0a and a positioning portion 20b, to the first cross member 11 from above and positioning the lower rail 8 in the longitudinal direction of the vehicle body, the same process as in the conventional example described above is performed. First, the second mounting bracket 14 is fastened to the second cross member 12, and then the first mounting bracket 2 is fastened.
The mounting portion 20a of the first cross member 11 may be fastened to the front wall portion 11a of the first cross member 11 using bolts 18 and nuts 19.

[Brief explanation of drawings]

Fig. 1 is a side view showing the mounting structure of the front seat of a two-door car adopting the present invention, Fig. 2 is a partially enlarged view of Fig. 1, and Fig. 3 is a side view of the front seat mounting structure of a conventional two-door car. A side view showing an example of the mounting structure, and FIGS. 4 and 5 are partially enlarged views of FIG. 3, respectively. 1... Sheet, 6... Slider device, 7...
Atsupa rail, 8...Lower rail, 10...Floor panel, 11...Cross member, 14...Second
Mounting bracket, 20...first mounting bracket,
20a...Mounting part, 20b...Positioning part.

Claims (1)

[Scope of Claim for Utility Model Registration] A mounting structure for a seat provided on a floor panel so as to be slidable in the front and rear directions via a slider device, the slider device being composed of an upper rail and a lower rail, A first mounting bracket is fixed in advance to the front end of the lower rail, and a second mounting bracket is fixed in advance to the rear end of the lower rail. The first mounting bracket is configured to be fixed to a protruding cross member, and the first mounting bracket has an inverted U-shape in which the cross member mounting portion and the cross member positioning portion have mutually inward facing surfaces at a relatively acute angle. The cross member is formed to have a cross-sectional shape, and the cross member is fitted with a first mounting bracket leaving a space at the top, and the cross member mounting portion of the first mounting bracket and the cross member positioning portion are formed on the front wall portion and the rear wall portion of the cross member. The lower rail is positioned in the longitudinal direction of the vehicle body in a state in which the lower rails are in contact with each other, and in this state, the first and second mounting brackets are fixed to each cross member. Mounting structure.