JPH0635766Y2 - Slide rail - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an improvement of a slide rail for adjusting the position of a vehicle seat.

(Prior Art) There is a conventional slide rail in which an outer rail fixed to the vehicle floor side and an inner rail mounted on the outer rail and fixed to the seat cushion side are vertically arranged. That is, an upright outer rail formed in a substantially C-shaped cross section, an inner rail slidably mounted in the outer rail, upper and lower end surfaces of the inner rail and upper and lower inner surfaces of the outer rail. It is composed of a sliding material interposed between them.

(Problems to be solved by the invention) This slide rail can narrow the width of the slide rail itself as compared to the case where the outer rail and the inner rail are arranged in the lateral direction, so that the leg space of the rear seat occupant can be expanded. There are advantages. However, since the inner rail integrally connected to the seat cushion is assembled to the outer rail substantially parallel to the load applied to the seat cushion, the upper and lower ends are deformed by the load and slidability with respect to the outer rail is reduced. There is a defect that is damaged.

Therefore, an object of the present invention is to improve slidability of the inner rail with respect to the outer rail in the slide rail in which the outer rail and the inner rail are vertically assembled.

(Means for Solving the Problems) A slide rail according to the present invention for achieving the above object has a structure in which the widthwise center of the end surface is formed in a concave shape on the upper and lower end surfaces of the inner rail. A holding portion having a holding portion, the sliding member disposed between the holding portion and the upper and lower inner surfaces of the outer rail, and holding the outer surface of the inner rail at the upper and lower edges of the outer rail. The bracket that fixes the seat cushion frame integrally with the inner rail is fixed to the inner rail in an upright state, and a bent portion that bends the fixing point of the inner rail in the direction opposite to the inner rail is provided. It is characterized by being provided on the bracket.

It is desirable to form the inner surface of the outer rail on which the above-mentioned sliding member is arranged so as to hold the sliding member.

The sliding member is made of a metal roll or hard synthetic resin so as to be slidably contacted between the holding portion of the inner rail and the inner surface of the outer rail so that the inner rail can slide smoothly. Is preferred. Further, it is desirable to use a sliding material having a large outer surface with respect to the holding portion of the inner rail.

(Operation) A holding portion is provided on the upper and lower end surfaces of the inner rail,
Since the sliding material is held by the holding portion, the sliding material does not escape from the holding portion of the inner rail due to the load applied to the inner rail. Therefore, since the sliding member is always present between the inner rail and the outer rail, the slidability of the inner rail is not impaired.
Also, since the bracket that fixes the inner rail has a bent portion, the direction close to the load direction input from the seat cushion frame to the bracket (substantially right below)
An inner rail is installed in the. Further, since the upper and lower portions of the inner rail are held by the sandwiching portion provided on the outer rail, the sliding member provided between the inner rail and the outer rail can be completely prevented from falling off.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

1 to 4 show a first embodiment of the present invention, in which (1) is fixed to the vehicle floor side in the front-rear direction by a front mounting bracket (5) and a rear mounting bracket (4). The outer rail (1) is a section C
It is formed in a letter shape and has an inner rail (2) slidably mounted therein. The inner rail (2) is a rivet (24) (24) ..., which is a metal plate integrally fixed to the bracket (6) for fixing the seat cushion frame and the reclining adjuster, and the outer rail (1). It is assembled vertically with respect to.

The above bracket (6) is so arranged that the inner rail (2) is arranged substantially directly below the upper portion where the seat cushion frame is fixed.
A bent portion (61) is formed in the lower part of the. Therefore, the fixed portion of the inner rail (2) of the bracket (6) is bent in the direction opposite to the inner rail (2) by the bent portion (61).

And, between the upper and lower end surfaces of the inner rail (2) and the upper and lower parts (11) (12) of the outer rail (1), there is a sliding material (30) (30). Intervened.

Further, on the upper and lower edges of the outer rail (1), there are sandwiching parts (111) (11) for holding the outer side surface of the inner rail (2).
2) is integrally provided, and the holding portions (111) (112) prevent the inner rail (2) that holds the sliding members (30) (30) ... from falling off the outer rail (1). There is.

As described above, the rear side of the outer rail (1) is fixed to the vehicle floor side by the rear mounting bracket (4), and the rear mounting bracket (4) has an engaging portion (41) curved downward along the upper edge thereof. ) Is integrally extended, and the outer rail (1) is fixed with a rivet (13). In addition, in the figure (1
4), (14), ... Show the lock through holes provided in the standing side wall of the outer rail (1).

Bracket (6) for fixing the inner rail (2)
An attachment hole (61) for connecting an anchor (not shown) of the seatbelt is formed in this, and the anchor of the seatbelt is fixed to the bracket (6). Then, the bracket (6) below the mounting hole (61) is bent into a substantially J shape, and the tip end thereof is engaged with the engaging portion (41) of the rear mounting bracket (4). When the piece (7) is integrally fastened and a sudden load is applied to the seat belt, the locking piece (7) meshes with the engaging portion (41), and the load is applied via the rear mounting bracket (4). Are formed so as to be dispersed on the vehicle floor side.

The inner rail (2) has upper and lower end surfaces in the width direction (thickness direction) of the inner rail (2) as shown in FIG.
The center is formed in a concave shape, and the concave end surfaces are used as holding portions (21) (22). The holding portions (21) (22) are provided in an arc shape in the entire length direction and the thickness direction of the inner rail (2).

The sliding members (30) (30), which are held and rolled by the holding portions (21) (22) of the inner rail (2), are spherical metal rolls and have a diameter of the inner rail (2). Is formed so as to be bonded to the outer surface of the spherical outer surface (21) (22). Further, the upper and lower parts (11, 12) of the sliding material (30 (30) ... Rolling outer rail (2) are the sliding material (30) (30) ... and the inner rail (2). It is bent into a substantially U shape so as to sandwich.

As shown in FIG. 3, the sliding members (30) (30) ...
Gliding material (30) (30) that is placed behind and placed before and after that
An elongated slider (33) (33) having a circular cross section having an outer diameter substantially the same as the diameter of the sliding material (30) (30) is disposed between the inner rail (2) and the outer rail (1). ) And the central part in the lengthwise direction with the sliding member (30) (30) ...
The concentrated load applied to the inner rail (1) is dispersed to improve the slidability of the inner rail (1).

In the figure, (23) and (23) are through holes with which a stopper (not shown) provided integrally with the unlocking operation lever (8) attached to the bracket (6) engages, and the stopper is this through hole (23). (2
The inner rail (2) is locked at a predetermined position by inserting the through holes (14) at appropriate positions provided in the outer rail (1) from 3).

FIG. 5 shows a case where a long running material (31) having a rhombic cross section is used as the running material and the sliders (33) (33),
When the sliding material (31) (31) having such a shape is used,
To match the outer shape of this sliding material (31) (31),
V-shaped holding portions (21a) and (22a) are formed on the lower end surfaces of the inner rail (2a) and the outer rail (1
b) Form the upper and lower inner surfaces in a V shape.

Further, the embodiment shown in FIG. 6 is a case where a drum-shaped roller is used as the sliding member (32), and the sliding member (32) is also brought into contact with such an embodiment as in the case of the above-mentioned embodiment. The inner rail (2), the holding portion on the lower end surface and the upper and lower inner surfaces of the outer rail (1c) are formed so as to conform to the outer shape of the sliding member (32).

In addition, in FIGS. 5 and 6, (111b) (111c) (11
Reference numerals 2b) and (112c) denote sandwiching portions extending from the edges of the lower portions (11b) (11c) (12b) (12c) on the outer rails (1b) (1c).

In the embodiment shown in FIG. 7, instead of fixing the inner rail (2) shown in FIGS. 1 to 4 to the bracket (6) with rivets (24), the inner rail (2) is spot-welded. Is welded to the bracket (6). In the figure, (24 ') is a groove provided in the side wall of the inner rail (2), and spot welding is performed on the bracket (6) in the groove (24').

Although the inner rail (2) is disposed on the seat cushion side and the outer rail (1) is disposed on the vehicle floor side in the above-described one, the inner rail (2) is disposed on the company floor side and the outer rail ( It is optional to provide 1) on the seat cushion side.

(Effect) According to the present invention, since the bracket for fixing the cushion frame is provided with the bent portion and the inner rail integrated with the bracket is arranged in the direction close to the load direction input to the bracket, the load applied to the cushion frame As a result, the inner rail does not tilt and the mountability with respect to the outer rail is not impaired.

Moreover, since the outer surface of the inner rail is held by the holding portion provided on the outer rail, the inner rail does not tilt.

Furthermore, since a long slider is placed outside the sliding material between the upper and lower holding portions of the inner rail and the upper and lower parts of the outer rail, the outer and inner rails are Good installation.

From the above points, the slidability of the inner rail with respect to the outer rail is improved.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, FIG. 1 is a perspective view, and FIG.
The drawing is a sectional view taken along the line II-II in FIG. 1, FIG. 3 is an exploded perspective view of the main part, and FIG. 4 is a sectional view taken along the line IV-IV in FIG. 2, FIG. 5, FIG. FIG. 7 is a sectional view showing an embodiment. In the figure, (1) is an outer rail, (2) is an inner rail, (21) and (22) are holding portions of the inner rail, and (30).
Reference numerals (30), (31), (32) and (33) show the sliding members, respectively.

Claims (1)

[Scope of utility model registration request] 1. An upright outer rail formed in a substantially C-shaped cross section, and slidably adhered to the outer rail,
A slide rail comprising an inner rail integrated with a bracket for fixing a seat cushion frame, and a sliding material interposed between upper and lower end surfaces of the inner rail and upper and lower inner surfaces of the outer rail. The bracket is integrally fixed to the inner rail in an upright state, and a bent portion for bending the fixing portion of the inner rail in the bracket in a direction opposite to the inner rail is provided. An embracing portion having a concave shape at the center in the width direction of the end surface is provided, and the sliding member and the elongated slider are arranged between the embracing portion and the inner surface of the upper and lower portions of the outer rail. A slide rail in which a sandwiching part for holding the outer surface of the inner rail is integrally provided on the upper and lower edges of the outer rail.