JPH0712159Y2 - Seat slide device for automobile - Google Patents

Description

[Detailed description of the device]

[0001]

[Field of Industrial Application] The present invention slidably fits an upper rail fixed to a seat side to a lower rail fixed to a floor side through a mounting bracket, and
The present invention relates to a vehicle seat slide device in which an operating shaft having a latch that can be engaged and disengaged is secured to a lock portion on the lower rail side is pivotally attached to an upper rail side, and a protective cover is attached to cover a front end portion of the lower rail and a mounting bracket.

[0002]

2. Description of the Related Art A conventional automobile seat slide device is
For example, as shown in FIG. 5, the lower rail (103) fixed to the floor of the vehicle body via mounting brackets (101) (101a) and having a plurality of engagement holes (102) formed in the front-rear direction is provided with a seat. A first bracket in which an upper rail (104) fixed to a lower part is slidably fitted, and a cylindrical support portion (105a) is formed at a tip end at the center and the front in the longitudinal direction of the upper rail (104). (105) and a second bracket (106) having a tubular support portion (106a) formed at its tip is fixed, and the first and second support portions (105a) (106a) are provided with engaging holes (102). The operation shaft (108) with the latch (107) that can be selectively engaged and disengaged is pivotally attached, and the handle (108a) provided at the tip of the operation shaft (108) is operated to adjust and fix the seat in the front-back position. You can do it.

[0003]

However, in the conventional seat slide device, since the front end portion of the lower rail (103) and the mounting bracket (101) are projected on the floor under the seat, there is a feeling of protrusion and the appearance is not good. Moreover, there is a risk that the shoes of the seated person will be soiled.

Further, particularly when the handle (108a) is operated, the second bracket (106) prevents the front portion of the operation shaft (108) from bending laterally. The first bracket (105) as it must support the front
Besides, since the second bracket (106) must be fixed to the upper rail (104), the number of parts is increased, and there is a problem that assembly workability is reduced and cost is increased.

In view of the above problems of the conventional device, the present invention covers the front ends of the mounting bracket and the lower rail to improve the appearance and safety,
Moreover, it is an object of the present invention to provide a vehicle seat slide device that can reduce the number of parts and simplify the configuration.

[0006]

In order to achieve the above object, the device of the present invention slidably fits an upper rail fixed to a seat side to a lower rail fixed to a floor side via a mounting bracket. At the same time, a vehicle having a lock part formed on the lower rail side and an operation shaft having a latch that can be engaged and disengaged fixedly attached to the upper rail side, and a protective cover attached so as to cover the front end part of the lower rail and the mounting bracket. The seat slide device for a vehicle is characterized in that the protective cover is provided with a support portion that supports the front portion of the operation shaft in a rotatable and slidable manner.

[0007]

[Function] By fitting the front portion of the operating shaft to the support portion of the protective cover and attaching the protective cover to the front end portion of the lower rail, the front end portion of the lower rail and the mounting bracket are separated by the rail cover portion and the bracket cover portion. The front portion of the operation shaft is covered and is supported by the support portion so as to be rotatable and slidable.

Since the front portion of the operating shaft is supported by the supporting portion, when the operating shaft is operated, the operating shaft can bend laterally even if a lateral load acts on the operating shaft. Without this, smooth operation can be performed.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings.

(1) is a lower rail which is fixed to the floor and has a substantially U-shaped cross section, and has a substantially horizontal base portion (2) and left and right side portions (3) standing upright from both side portions of the base portion (2). ) And both sides
Tops (4) extending inwardly from each other from the tips of (3)
And a hanging part (6) depending from the inner end of the upper part (4), and an opening (5) is formed between the upper parts (4) along the longitudinal direction.

Front and rear mounting brackets (7) and (8) are fixed to the front and rear ends of the lower rail (1) by rivets or welding, and the front and rear mounting brackets (7) and (8) are attached to appropriate bolts and nuts ( The lower rail (1) is attached to the floor of the vehicle body by fixing the lower rail (1) to the floor of the vehicle body by fixing it (not shown) to the floor of the vehicle body. In addition, the left side of FIG. 2 is the front when mounted on the floor.

The mounting portion (7a) bent downward of the front mounting bracket (7) is provided with a floor mounting hole (7b) and projections (7c) on both side edges. On one side part (3) of the lower rail (1), a plurality of rectangular lock parts (9) are provided at regular intervals along the longitudinal direction.

(10) is fixed to the seat side and has a lower rail
(1) A substantially inverted T-shaped upper rail slidably fitted in the longitudinal direction through a roller (11) rotatably fitted inside and a pair of left and right balls (12), Opening between the upper parts (4) of the lower rail (1) by joining two steel plates (10a) (10a) bent in a substantially L shape back to back
A substantially vertical base (13) extending upward through (5) and a base (2) of the lower rail (1) extending from the lower end of the base (13) substantially parallel to both sides. It is formed of a lower portion (14) fitted in the lower rail (1) and a standing portion (15) standing upright from the tip of the lower portion (14).

The upper rail (10) carries the seat movably in the front-rear direction by attaching its base (13) to the cushion frame of the seat with bolts.

(16) has a handle (16a) at the front,
An operating shaft that is substantially parallel to the upper rail (10), and a support portion formed in a tubular shape for the bracket (17) fixed to the side surface of the base portion (13) at the center in the longitudinal direction of the upper rail (10) ( 1
It is pivotally attached to 7a).

Reference numeral (18) is a latch fixed to an operation shaft (16) arranged between a pair of front and rear supporting portions (17a) of the bracket (17), and an engaging portion provided at a lower end is (18a). ) Is the lower rail
By engaging the lock part (9) of (1), the lower rail
By preventing the longitudinal movement of the upper rail (10) with respect to (1), the seat can be fixed at a desired position,
Also, the handle (16a) is operated to rotate the operation shaft (16) against the biasing force of the spring (22), and the engaging portion (1) of the latch (18) is rotated.
By disengaging 8a) from the lock part (9), the seat rail can be adjusted back and forth by freely moving the upper rail (10) back and forth.

Reference numeral (19) is a protective cover formed of a synthetic resin material, which is fitted onto the side portion (3) and the upper portion (4) of the lower rail (1) to attach the front end portion (1a) of the lower rail (1). Rail cover
(19a) and a bracket cover portion (19b) that is continuously provided below the rail cover portion (19a) and covers the front bracket (7), and is formed at the rear end edge of the bracket cover portion (19b). By engaging the claws (19c) and the holes (19d) formed on the side surfaces with the rear end (7d) and the protrusion (7c) of the front bracket (7), the front bracket (7) Fixed to.

The rail cover (19a) includes a lower rail (1).
Of the upper rail (1) and the vertical groove (20a) which allows the forward movement of the base (13) of the upper rail (1) to pass through, and the upper rail (20a). 10) bottom
An insertion groove (20) is formed which includes (14) and a horizontal groove portion (20b) which allows the upright portion (15) to move forward.

Further, the rail cover portion (1) of the protective cover (20) is
A cylindrical support portion (21) having a side opening (21a) is integrally formed on the side portion (9a), and the operation shaft (16) is formed on the support portion (21) of the protective cover (19). By fitting the front part of () through the opening (21a), the front part of the operation shaft (16) is supported so as to be rotatable and axially slidable without bending laterally.

Next, the operation of the embodiment of the present invention will be described. The claw portion (19c) and the hole portion (19d) of the protective cover (19) are engaged with the rear end portion (7d) and the protruding portion (7c) of the front bracket (7), respectively, and the operation shaft (16) The front portion near the handle (16a) is fitted into the support portion (21) through the opening (21a), and the protective cover (19) is attached to the front end portion (1a) of the lower rail (1).

Thereby, the front end portion (1) of the lower rail (1) is
a) and the mounting bracket (7) are covered by the rail cover (19a) and the bracket cover (19b), and the front part near the handle (16a) of the operating shaft (16) is rotated by the support (21). Be movably supported. Operate the handle (16a) so that the latch (1
By disengaging the engagement part (18a) of 8) from the lock part (9), the upper rail (10) can freely move back and forth, and the seat can be moved back and forth through the upper rail (10). The position can be adjusted, and the upper rail (10) is fixed at a desired position by engaging the engaging portion (18a) of the latch (18) with the lock portion (9) at a desired position. You can Further, with the movement of the upper rail (10), the operation shaft (16) slides in the support portion (21) along its axial direction.

In this case, the front part of the operating shaft (16) is the support part (21).
When the handle (16a) is operated, even if a load is applied to the operating shaft (16) in the lateral direction with respect to its axial direction, the operating shaft (16) will bend laterally. Since there is no peeling, smooth operation can be performed.

[0023] The front end of the upper rail (10) is a lower rail.
When it moves to the position of the overhang protruding forward from the front end (1a) of (1), the base (1) of the upper rail (10)
3) and the lower part (14) are the rail cover (19a) of the protective cover (19).
The vertical groove portion (20a) of the insertion groove (20) and the horizontal groove (20
Since it can pass through b), the upper rail (10) can move forward without interfering with the protective cover (19).

[0024]

The present invention has the following effects. (a) The front cover of the lower rail and the mounting bracket are covered by the protective cover with the rail cover and bracket cover so that they are not exposed to the inside of the vehicle.
The appearance can be improved and the safety can be improved. (b) Since the support part for supporting the front part of the operation shaft is integrally formed on the protective cover, it is possible to obtain a smooth operation of the operation shaft, and also to support the front part of the operation shaft as in the conventional case. Since it is not necessary to fix the bracket to the upper rail, the assembling workability can be simplified, the number of parts can be reduced, and the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view of an essential part of the embodiment of the present invention in which a protective cover is attached to a seat slide.

FIG. 2 is an overall perspective view of the protective cover before it is attached to the seat slide.

3 is a cross-sectional view taken along the line AA in FIG.

FIG. 4 is a sectional view taken along line BB in FIG.

FIG. 5 is an overall perspective view of a conventional seat slide device.

[Explanation of symbols]

(1) Lower rail (3) Side (4) Top (5) Opening (7) (8) Mounting bracket (7c) Projection (10) Upper rail (13) Base (14) Lower (19) Protective cover (19a) ) Rail cover (19b) Bracket cover (19d) Hole (20) Insertion groove (20a) Vertical groove (20b) Horizontal groove (21) Support (21a) Opening

Claims (1)

[Scope of utility model registration request] 1. An upper rail fixed to a seat side is slidably fitted to a lower rail fixed to a floor side via a mounting bracket, and a lock portion formed on the lower rail side is attached to the upper rail side. In an automobile seat slide device in which a protective cover is attached so as to pivotally attach an operation shaft having a detachable latch fixed thereto and to cover a front end portion of a lower rail and a mounting bracket, the front portion of the operation shaft is pivoted on the protection cover. A seat slide device for an automobile, characterized in that a support portion for slidably supporting is formed.