JPH10315809A - Slide rail structure of vehicle seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a slide rail for vehicle seat with which an upper rail formed in a single piece with the seat can be regulated quickly to the specified position on the lower rail about the longitudinal direction and generation of rattling owing to the regulating member can be prevented. SOLUTION: A stopping hole 10A is provided in a long lower rail 1, and an upper rail to be slidably fitted to the lower rail 1 is equipped with a temporary stopping mechanism 3 consisting of a slider 31 having a hook engaged by the hole 10A and a release lever 30 formed in a single body with the slider 31. Rattle preventive pieces 33A to contact with the inside of the lower rail 1 are formed on a cover guard 33 in a single body construction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slide rail for adjusting the front / rear position of a seat (seat) for a one-box vehicle, and more particularly, to extend a space in front of a front seat by retreating a front seat to a position near a rear seat. The present invention relates to a slide rail of an obtained vehicle seat.

[0002]

2. Description of the Related Art In a one-box vehicle having a third seat behind a second seat, the second seat can be retracted to the vicinity of the third seat by providing a long slide rail on the second seat. As a result, a wide space is obtained between the second seat, the driver seat, and the assistant seat, and the comfort of the second seat can be improved.

[0003]

By the way, in the second seat, since the entire length of the slide rail is long, the adjustable range of the front and rear positions is widened. For this reason, it has been difficult to adjust the front / rear position of the second seat so that a predetermined space is generated with respect to the third seat on the rear seat side or the driver seat on the front seat side. In particular, when adjusting the distance to the rear third seat, there was a problem that the second seat had to be moved rearward while visually observing the rear so as not to touch the legs of the occupant in the rear seat.

Accordingly, an object of the present invention is to make it possible to easily and accurately adjust the front-rear position of a second seat with a long slide rail.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides an elongated lower rail fixed to a vehicle floor and having a cover on an upper surface, and a seat slidably fitted to the lower rail. A temporary stop mechanism for temporarily stopping the sliding of the upper rail is provided at the end of the upper rail, and the temporary stop mechanism is configured to release the upper part of the rear rail from the inside of the lower rail to the outside. A lever, a slider with a hook integrally provided on a bottom portion on a rear side of the release lever, engaged with a stop hole provided on a lower rail, and urged by a spring in an engagement direction, and sandwiches an upper portion of the release lever. And a cover guard integrally provided with an anti-rattle piece that abuts on the left and right inner side surfaces of the lower rail. A.

Accordingly, when the seat integrated with the upper rail is moved to a position equal to or more than a predetermined front and rear position, the hook on the upper rail side engages with the stop hole of the lower rail. Thereby, the movement of the seat is stopped at a predetermined front and rear position with respect to the front and rear seats, and the hook is released from the stop hole by operating the release lever, so that the seat is further moved forward or backward in the front seat or rear seat direction. be able to.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a slide rail structure according to the present invention. In FIG. 1, (1) shows a pair of left and right lower rails having a cover (4) made of an elastic member on the upper surface. As shown in FIG. It is long and long.

The lower rail (1) is buried in a groove (not shown) provided on the vehicle floor so that the upper surface is substantially flush with the vehicle floor on the vehicle floor side. The lower rail (1) is at the bottom (1
0) and the left and right parts (11) (11) and the top part (12)
(12) and a bent portion (1) provided at the tip of each upper surface portion (12).
3) and (13). That is, the opening (1)
A) is formed in a substantially channel shape in cross section with the upper side facing upward, and a number of lock holes (not shown) are formed at the center in the width direction at the bottom (10) of the lower rail (1) in the front-rear direction at intervals. There is a hole. In addition, lower rail (1)
A pair of left and right stop holes (10A) and (10A) are formed on the left and right sides of the bottom of the front and rear portions.

A seat (not shown) is provided on the upper rail (2) which is slidably fitted in the lower rail (1) in the front-rear direction.
The upper rail (2) is fixed on the lower rail (1) as shown in FIG.
B) and a horizontal portion (2A) formed integrally with the vertical portion (2B), and rollers (23) for rolling in the lower rail (1) are provided before and after the vertical portion (2B). Yes, and the part where the vertical part (2B) is notched,
A lock piece (22) that engages with the lock hole is slidably provided in a vertical direction.

In the drawing, reference numeral (3) denotes a temporary stop mechanism provided at the front end (front end or rear end) of the upper rail (2) to temporarily stop sliding of the upper rail (2).

[0011] The temporary stop mechanism (3) moves the seat so that a predetermined space (for example, a seat for a moving seat occupant or a rear seat occupant) is generated between the front seat and the rear seat. When the sheet is moved forward or backward, the sheet can be temporarily stopped at predetermined front and rear positions.

As shown in FIG. 1, the temporary stop mechanism (3) shown in FIG. 1 has a release lever (30) projecting outward from the lower rail (1), and the lower rail (1) integrated with the release lever (30). Stop holes (10A) (10
A) A slider (3) with a hook (31A) that is engaged with A) and is urged in the direction of engagement by a spring (32), and a cover guard (33) that clamps a release lever (30). I have.

A slider (31) is welded to the lower end of the release lever (30), and the spring (3) is attached to the rear end side.
2) There is an insertion hole (30C) for inserting
A spring pin (34) is inserted through the upper front end.

The release lever (30) has a portion (30A) projecting outward from the lower rail (1) bent into a crank shape, and the bent portion is a guide provided at the tip of the upper rail (2). It is inserted through a guide hole (20A) provided in the guide plate (20) so as to be located on the plate (20) (FIG. 1). Accordingly, when the upper rail (2) is slid in the front-rear direction, the release lever (30) also slides in the lower rail (1).

The slider (31) has a U-shape and is provided with stop holes (10) of the lower rail (1) on the left and right sides on the rear side.
A) A hook (31B) for engaging with (10A) is provided, and the hook (31B) shown is formed with a front end edge inclined and a rear end edge vertical, and is engaged with a stop hole (10A). When the upper rail (2) is advanced, the hook (31B) escapes from the stop hole (10A), and even if the upper rail (2) is to be moved backward, the rear end edge of the stop hole (10A) is formed. It hits the edge of the hole and cannot move backwards.

The spring (32) is formed in a curved shape along the sliding direction of the upper rail (2), and the center of the spring (32) in the sliding direction of the upper rail (2) is as shown in FIG. The hook (31B) is urged downward by being disposed so as to be in elastic contact with the inner surface of the upper surface (12).
In the drawing, (32A) and (32A) are free ends of the spring (32), and the free ends (32A) and (32A) are engaged with the front side of the slider (31).

The stop holes (10A) (10A) with which the hooks (31A) are engaged are formed on the bottom (10) of the lower rail (1) on the left and right in the width direction as shown in FIG. The stop holes (10A) (10A) are opened before and after in the longitudinal direction of the lower rail (1), and as described above, the hook (31B) is engaged when the sheet is moved to the frontmost or last position in the use state of the sheet. Are configured to match.

The cover guard (33) is a lower rail (1).
The upper portion of the release lever (30) of the portion located inside is formed in a U-shape with a synthetic resin so as to sandwich the upper portion, and the rear portion of the release lever (30) as shown in FIGS. A guard portion (33C) that covers a portion protruding upward from the lower rail (1) is extended.

Therefore, when the upper rail (2) is advanced, the release lever (30) also advances as described above. At this time, the leading edge of the portion of the release lever (30) projecting from the lower rail (1) is covered with a cover guard. The cover (4) made of a flexible elastic material provided on the upper surface of the lower rail (1) because it is covered by the guard portion (33C) of (33).
Will not be damaged.

As shown in FIG. 1, the cover guard (33) is integrally formed with wing-shaped anti-rattle pieces (33A) (33A) outwardly from both right and left edges.

As shown in FIG. 2, the play preventing pieces (33A) and (33A) have their outer edges (33B) and (33B) contact the inner surfaces of the left and right portions (11) and (11) of the lower rail (1). It is configured to touch.

Accordingly, the cover guard (33) sandwiches the release lever (33), and the slider (31) integral with the release lever (33) is provided at the bottom (1) of the lower rail (1).
0) Since it is joined to the upper surface, the release lever (30) in the lower rail (1) can be attached by the play preventing pieces (33A) (33A) of the cover guard (33) without rattling in the left-right direction.

When the release lever (30) is lifted, the spring pin (34) provided at the front of the release lever (30) is bent, as shown in FIG. 5, into the bent portion (30) of the lower rail (1). (30) Since the release lever (30) comes into contact with the tip, the spring pin (34)
The portion (30A) protruding outward from the lower rail (1), which is the rear side, is pivoted upward about the rotation center to rotate the hook (31).
B) escapes from the stop hole (10A).

Therefore, when the release lever (30) is lifted and the hook (31B) escapes from the stop hole (10A), the spring pin (34) abuts on the lower rail (1) side. The lift amount of the release lever (30) is regulated to be constant, and an overstroke of the release lever (30) can be prevented.

Therefore, no extra force acts on the spring (32) abutting on the lower rail (1) due to the overstroke of the release lever (30).
Can be prevented from deforming, and the lockability to the hook (31B) is not impaired.

When the release lever (30) is lifted, the guard (33C) of the cover guard (33)
Accordingly, the cover (4) is not damaged by the lifting operation of the release lever (30) because the release lever (33) is covered.

Next, the case where the operation of the present structure is used for the second seat will be described. When the second seat is at the front position on the driver seat side, the second seat is unlocked by the lock piece (22) in the direction of the third seat. Then, the hook (31B) engages with the stop hole (10A) of the lower rail (1) as shown in FIG. 5, so that further retraction is restricted, and the retraction of the second seat temporarily stops. . As a result, the second seat is adjusted to a predetermined position with respect to the third seat, and the second seat does not contact the legs of the rear occupant.

When the occupant is not seated on the third seat and the second seat is retracted to the vicinity of the third seat to provide a wide space between the second seat and the driver seat, a release lever (30) is provided. Is lifted by the operating member in the direction F (upward) in FIG. As a result, the slider (31) integrated with the release lever (30) moves upward against the elasticity of the spring (32), so that the hook (31B) stops the stop hole (10A).
Escape from Therefore, the second seat can retreat to the rear end of the lower rail (1), and can move to a position close to the third seat, so that a wide space can be obtained in front of the second seat.

When the second sheet is advanced in the above state, the stop mechanism also advances once together with the second sheet, and the hook (31B) is engaged with the stop hole (10A) on the rear side of the lower rail (1). By configuring the shape of the hook (31B) as shown in the figure, the hook (31B) is pulled out from the stop hole (10A) by the forward force of the upper rail (2), and is inserted between the driver seats provided on the front side of the lower rail (1). Engage with stop holes that regulate space.
At this time, since the lock piece (22) of the upper rail (2) with respect to the lower rail (1) is engaged with the lock hole (10B), the forward movement is restricted unless the lock device is released. As a result, a certain space is obtained between the second seat and the driver seat which is the front seat.

[0030]

According to the present invention, in a slide rail composed of an elongated lower rail, a stop hole is engaged with the lower rail, and a hook of a temporary stop mechanism provided on the upper rail is engaged with the slide rail. The front and rear positions of the seat provided with respect to the front or rear seats of the seat can be easily adjusted to predetermined positions, and the adjustability is improved.

In addition, since the temporary stop mechanism is disposed in the lower rail, it does not protrude to the outside, does not impair the appearance quality of the seat, is simple in structure, and can be provided at low cost.

Further, since the temporary stop mechanism is provided at the tip of the upper rail, the mountability to the upper rail is good and the number of assembling steps can be reduced.

Since the cover guard for protecting the cover provided on the lower rail is integrally provided with a play preventing piece, play of the release lever and the slider can be prevented. Therefore, the operability of the temporary stop mechanism is improved, and the vehicle can be stopped temporarily before and after the upper rail.

[Brief description of the drawings]

FIG. 1 is a partially cutaway exploded view of a structure according to the present invention.

FIG. 2 is a sectional view of a main part.

FIG. 3 is a perspective view of a temporary stop mechanism.

FIG. 4 is an exploded perspective view of a slide rail having a temporary stop mechanism.

FIG. 5 is an explanatory view of the structure of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lower rail 2 Upper rail 3 Temporary stop mechanism 10A Stop hole 30 Release lever 31 Slider 31B Hook 32 Spring 33 Cover guide 33A Backlash prevention piece 34 Spring pin

Continued on the front page (72) Inventor Kenji Tsuchiya 3-2-112 Matsubaracho, Akishima-shi, Tokyo Inside Tachi-S Co., Ltd.

Claims (2)

[Claims] 1. An elongated lower rail fixed to a vehicle floor side and having a cover on an upper surface, and a seat-side upper rail slidably fitted to the lower rail. A temporary stop mechanism for temporarily stopping the sliding of the upper rail is provided. The temporary stop mechanism includes a release lever having a rear upper portion protruding outward from the lower rail, and a release lever integrally formed on a rear bottom portion of the release lever. A slider with a hook, which is engaged with a stop hole provided in the lower rail and is urged by a spring in an engagement direction, and a cover guard for holding an upper portion of the release lever, wherein the cover guard includes the lower rail. A slide rail structure for a vehicle seat in which a backlash preventing piece that contacts the left and right inner surfaces of the vehicle seat is integrally formed. 2. The sliding of the vehicle seat according to claim 1, wherein a spring pin is provided at a front portion of the release lever located in the lower rail, the spring pin abutting on an upper portion of the lower rail to prevent over-lock of the release lever. Rail structure.