JPH10297327A - Slide device of vehicular seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To have large peel strength for the peel load inputted from a seat belt by hanging down a stopper contacted to the leg of a lower rail on the front side of an upper rail and providing a notch part with which a striker is engaged on the rear end edge of the upper rail. SOLUTION: A seat cushion SC is engaged with the striker B21 of an anchor 2 by a hook 31 and a stopper 25 provided in front of an upper rail 1 is hit to a leg 12 and a striker 4 of a vehicular floor F side is engaged with a notch part 24 provided on a rear end edge and a lock piece 26 is engaged with the lock hole 16A of the lower rail 1. In a peel load from a seat belt, an obliquely upward force is applied to the rear side of the upper rail 2, but as the rear side of the upper rail 2 is engagingly locked by the striker 4 of a vehicular floor F side, the rear side of the upper rail 2 is not separated from the lower rail 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slide device for adjusting the front / rear position of a vehicle seat such as an automobile seat.
More specifically, the present invention relates to a seat sliding device having a seat belt anchor.

[0002]

2. Description of the Related Art A conventional vehicle seat slide device in which an occupant restraint seat belt anchor is attached to a seat side is known. In order not to separate from the lower rail, the thickness of the lower rail and the upper rail may be increased, or
A reinforcing member is provided to reinforce.

[0003]

Therefore, not only the weight is increased, but also the number of parts is increased, and there is a problem that the man-hour for manufacturing an upper rail or the like having a complicated sectional structure is required. Therefore, an object of the present invention is to provide a slide device having a simple structure of an upper rail and a lower rail and having a large peel strength.

[0004]

According to the present invention, there is provided a slide device for a vehicle seat according to the present invention, comprising: a lower rail fixed to a vehicle floor; a seat cushion slidably fitted to the lower rail. An upper rail to be attached, and a striker A standing on the vehicle floor on the rear side of the lower rail, and a stopper abutting on the leg of the lower rail is hung on the front side of the upper rail, and Is provided with a cutout portion with which the striker A engages, so that the striker A responds to the slanting front peeling load inputted to the rear part of the upper rail, and the slanting rear peeling load acts on the front part of the upper rail. With a stopper.

[0005]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded view of a sliding device for a vehicle seat according to the present invention, in which (1) is a pair of left and right lower rails fastened to a vehicle floor (F) by bolts, and (2) is sliding on a lower rail (1). A seat cushion (SC) is attached to the upper rail (2) so as to be able to jump up and down by an upper rail which is freely inserted.

The illustrated vehicle floor (F) has a flat portion (40),
At the front end, a front downward inclined portion (42) is formed, and at the rear end, a step (41) higher than the flat portion (40) is formed. Striker A
(4) is protrudingly provided. (42A) (4)
1A) shows a fastening hole for fastening the lower rail (1) to the vehicle floor (F).

The lower rail (1) has a horizontal bottom (1A).
And the side (1B) (1) rising from both sides of the bottom (1A)
B), upper parts (1C) and (1C) extending from the left and right side parts (1B) and (1B), and each upper part (1C).
(1C) The vertical rails (1D) and (1D) bent downward from (1C), and the upper rail (2) slides between the left and right vertical rails (1D) and (1D). Are formed.

[0008] Legs (11) and (12) are fixed to the front and rear of the lower rail (1), and the legs (11) and (12) are connected to the inclined portion (42) and the step portion of the vehicle floor (F). By fastening to (41) with bolts (12B), the lower rail (1) is fixed to the vehicle floor (F).

Lock holes (16A) (16B) are provided at the front and rear of the bottom (1A) of the lower rail (1).
The upper rail (2) is locked to the lower rail (1) by engaging a lock piece (26) provided on the upper rail (2) side with the lock hole (16).

[0010] The upper rail (2) is a lower rail (1).
An upright plate body (20) whose lower part is inserted into the lower rail (1) from the slit (1 '), a front roller (28C), an intermediate roller (28B) that rolls into the lower rail (1), The rear roller (28A) and the intermediate roller (2
8B) and a lock mechanism (2) provided between the rear portion (28A).
6).

The above rollers (28C), (28B), (2)
8A), the support shaft (27A) is rotatably mounted at substantially equal intervals in the longitudinal direction which is the sliding direction of the upper rail (2), and rotatably supports the front roller (28C).
The fixed guide (27) is welded.

The entire length of the upper rail (2) is substantially the same as the entire length of the lower rail (1), and the front part (22) of the upper rail (2) is seated by a hinge pin (22B) as shown in FIG. The front side of the cushion (SC) is pivotally connected to the upper and lower directions so as to be freely rotatable. A U-shaped striker B (21) protrudes from an outer surface of a rear portion (23) of the upper rail (2) via a mounting bracket (21A).

A lock mechanism (26) is urged downward by a spring (not shown) and moves upward by operation of an operation section (not shown) provided outside the seat.
6), and the lock piece (26) has a lock hole (16A) on the rear side of the lower rail (1) as shown in FIG.
, The seat cushion (SC) is locked in the used state, and as shown in FIG. 3, the lock piece (26) is engaged with the lock hole (16B),
The seat cushion (SC) moves forward and is locked at the raised position of the seat cushion (SC). In the figure (22A)
Denotes a mounting hole for pivotally attaching the seat cushion (SC).

A stopper (25) protruding downward is hung down on the front side of the upper rail (2), and the stopper (25) is used when the seat cushion (SC) is in use as shown in FIG. ) Leg (12). When the seat cushion (SC) is used, a cutout (24) that engages with the striker A (4) is provided at the rear edge of the upper rail (2). Thus, the upper rail (2) is locked to the lower rail (1).

The frame (3) of the seat cushion (SC)
A hinge bracket (32) for pivotally connecting the upper rail (2) is welded to 0), and a through hole (32A) of the hinge bracket (32) and the upper rail (2).
By inserting a hinge pin (22B) through the mounting hole (22A) of the above, as shown in FIG.

A hook (31), which is engaged with the striker B (21) through a mounting member and is urged by a spring, is attached to the frame (30) on the rear side of the seat cushion (SC). (31A) pivotably attached to the
A remote operation member such as a strap (not shown) connected to an operation member disposed outside the seat cushion (SC) is connected to the hook (31).

An anchor (33) for a seat belt (B) is attached to the frame (30). In the figure, (34) indicates a foam pad of the seat cushion (SC), and (35) indicates a skin.

A seat back (SB) is attached to the seat cushion (SC) so that the seat back (SB) can be tilted forward. When the seat back (SB) is tilted forward, the seat back (SB) is folded on the seat cushion (SC). It can be flipped up with the seat cushion (SC) as shown.

FIG. 2 shows the use state of the seat. The seat cushion (SC) is engaged with the striker B (21) of the anchor (2) by the hook (31) and is provided on the front side of the upper rail (1). The stopper (25) abuts against the leg (12), and a notch (2
4) In the striker A (4) on the vehicle floor (F) side, the lock piece (26) is provided with the lock hole (16) of the lower rail (1).
A).

With this structure, the upper rail (2) is locked to the lower rail (1). The rear roller (28A) is located immediately below the striker B (21) for locking the seat cushion (SC) to the upper rail (1).

Accordingly, the peeling load of the seat cushion (SC) input to the seat belt (B) is equal to the hook (3).
1) Since it is transmitted from the striker B (21) and the rear roller (28A) to the lower rail (1), the upper rail (2) is not deformed by the load.

Further, the peeling load from the seat belt is applied to the rear side of the upper rail (2) by an obliquely upward force, but the rear side of the upper rail (2) has a striker A (4) on the vehicle floor (F) side. ), The rear side of the upper rail (2) does not separate from the lower rail (1).

In addition, an obliquely downward force acts on the front side of the upper rail (2), and such force is applied to the leg (25) by a stopper (25) provided at the front of the upper rail (2). You can escape to the side.

In the position of use shown in FIG.
Of the striker B (21) is released,
When the seat back (SB) is tilted forward on the seat cushion (SC), and the seat cushion (SC) is rotated forward about the hinge pin (22B) provided on the front side of the seat back (SB), as shown by the chain line in FIG. (SC),
The seat back (SB) is flipped up, and the vehicle floor (F) on which the seat cushion (SC) is installed can be used as a luggage storage space.

FIG. 3 shows a state in which the seat is moved to the front position. In the state of FIG.
In this state, the seat cushion (SC) is moved forward from the position (A) and the lock piece (26) is engaged with the lock hole (16B).

[0026]

According to the present invention, the stopper provided on the front side of the upper rail abuts on the leg of the lower rail, and is engaged with the striker A provided on the vehicle floor side in the notch provided on the rear end edge of the upper rail. Therefore, it has a large peel strength, and it is not necessary to reinforce the upper rail and the lower rail as in the related art, so that the weight can be reduced.

In particular, the present invention is effective in a device in which the peel strength is insufficient with respect to a peel load input from a seat belt, such as a slide device using a lower rail having a short overall length, such as a second seat of a one-box vehicle. is there.

[Brief description of the drawings]

FIG. 1 is a partially cutaway exploded perspective view of the device of the present invention.

FIG. 2 is a cross-sectional view illustrating a use state of a seat.

FIG. 3 is a cross-sectional view showing a state where a seat is advanced.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lower rail 2 Upper rail 4 Striker A 12 Leg 24 Notch 25 Stopper SC Seat cushion F Car floor

Claims (3)

[Claims] 1. A lower rail fixed to a vehicle floor side, an upper rail slidably fitted to the lower rail to attach a seat cushion, and a striker A standing on a vehicle floor at a rear side of the lower rail, A slide for a vehicle seat, wherein a stopper which abuts on a leg of the lower rail is hung down on a front side of the upper rail, and a cutout portion with which the striker A is engaged is provided at a rear end edge of the upper rail. apparatus. 2. The vehicle seat slide according to claim 1, wherein the upper rail has substantially the same overall length as the lower rail, and a striker B is provided in the vicinity of the notch to be engaged with a hook provided on a seat cushion. apparatus. 3. The sliding device for a vehicle seat according to claim 1, wherein the striker A engages with the notch and the stopper comes into contact with the leg in a state where the upper rail is locked to the lower rail by a lock mechanism. .