JPH03204348A - Seat slide device - Google Patents

Abstract

PURPOSE:To stably assemble a latch member and an operating shaft without requiring additional parts by providing a pressing piece for pressing the top end of the operating shaft on the end part of a curl part on the top side to bring the end surface of the latch member into contact with the inside of one of two curl parts. CONSTITUTION:One end of a latch member 60 disposed between two curl parts 41, 45 of a support bracket 40 fixed to a seat side rail member 30 is pressed onto the inner end of one of the curl parts 41, 45, and the latch member 60 is fixed to the operating shaft 52 of an operating lever 50 in the state where the top end of the operating shaft 52 is in contact with a pressing piece 47 formed on the end part of the curl part 45. Hence, the latch member 60 and operating shaft 52 can not be longitudinally moved to eliminate the longitudinal shaking, and the generation of rattling noise at the time of start or stop is prevented. Also, strict dimensional management for the space between both end parts of the latch member 6 and the respective inner ends of the curl parts 41, 45 is not required, resulting in a reduction in manufacturing cost.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a seat slide device that supports a seat at an installation location so that its position can be adjusted back and forth.

"Conventional technology" As a conventional seat slide device, for example, #open/close6
There is one disclosed in Japanese Patent No. 2-91335.

That is, the publication describes an abutment method in which an operating shaft is pivotally supported on a support bracket of a seat-side rail member, a front latch member is fixed to this operating shaft, and the latch member is pressed against two bearings provided on the support bracket. A device in which a member is provided on an operating shaft is disclosed.

"Problem to be Solved by the Invention" The above-mentioned prior art was proposed by the applicant of the present application, and was convenient for assembling the latch member and the operating shaft without rattling. In addition to requiring an abutment member, the operation of pulling the operating shaft in one direction during assembly is complicated, and the challenge is to develop a technique to assemble the latch member and operating shaft with a simpler structure without rattling. there were.

The present invention has been made in view of this conventional situation, and provides a seat slide device that does not require any extra parts and allows the latch member and operating shaft to be easily assembled without rattling. It is intended to.

"Means for Solving the Problems" The gist of the present invention for achieving the above object is to fit a seat side rail member to a vehicle body side rail member provided with a locking portion so as to be able to slide back and forth. In the seat slide device, a support bracket is fixed to the seat-side rail member to pivotally support an operating shaft, and a latch member that selectively engages with the locking portion is fixed to the operating shaft. Two curled parts are provided on the support bracket, and the operating shaft is fitted into the two curled parts to be pivotally supported,
The latch member is positioned between the two curled parts and fixed to the operating shaft, and a presser is provided to press the tip of the operating shaft so that the end surface of the latch member comes into contact with the inner end of one of the two curled parts. The seat slide device is characterized in that the piece is provided at the end of the curled portion on the distal end side.

"Operation" The latch member and operating shaft of the seat slide device are assembled as follows.

The operating shaft is inserted through the two curled portions of the support racket of the seat-side rail member, and is brought into contact with and fitted to the pressing piece at the end of the tip-side curled portion.

After inserting the operating shaft, fit the latch member between the two curled parts while keeping the tip against the pressing piece, and insert the latch member into the inner part of one of the curled parts so that the end face of the latch member receives the reaction force from the pressing piece. The latch member is brought into contact with the end, and in this state, the latch member is fixed to the operating shaft by welding or the like. Once the machining of the pressing piece is completed, that state is maintained and the assembly is completed.

Normally, the latch member is engaged with a locking portion of the vehicle body side rail member, and the seat side rail member is restrained from sliding relative to the vehicle body side rail member. Since the latch member and the operating shaft are supported so as not to wobble, the seat-side rail member is also restrained so as not to wobble.

When the operating shaft is rotated to remove the latch member from the locking part of the vehicle body side rail member, the restraint of the seat side rail member is released.
The seat side rail member becomes slidable relative to the vehicle body side rail member, and when the operating shaft is returned to an appropriate position and engaged with the locking part such as the latch member, the seat side rail member slides against the vehicle body side rail member as described above. It is restrained from sliding against the member.

"Example" Hereinafter, one embodiment of the present invention will be described based on the drawings.

Each figure shows one embodiment of the invention.

As shown in FIG. 3, in the seat slide device 10, a seat side rail member 30 is fitted to a vehicle body side rail member 20 so as to be slidable back and forth, and a ball and a roller are interposed therebetween.

A front support bracket 21 is fixed to the front end of the vehicle body side rail member 20, and a rear support bracket 22 is fixed to the rear end. The front support bracket 21 and the rear support bracket 22 are each fixed to the floor of the vehicle.

The vehicle body side rail member 20 is provided with a locking portion 25 in which locking holes 26, 26, . . . are successively arranged along the longitudinal direction of the vehicle.

A support bracket 40 is fixed to the seat-side rail member 30, and two curled portions 4 are provided at the tip of the support bracket 40.
1.45 is formed.

An operating shaft 52 of the operating lever 50 is rotatably supported by both curled portions 41 and 45, and a grip portion 51 is provided at the base end of the operating shaft 52. In addition, the operating lever 50
A transmission lever 53 for transmitting the rotation to the adjustment mechanism of the other seat slide is fixed to the operating shaft 52 by welding or the like.

As can be seen in FIGS. 1 to 3, the operating shaft 52 of the operating lever 50 has locking holes 26, 26. The base of the latch member 60 that selectively engages with the... is fixed by welding or the like. The latch member 60 is connected to the curled portion 4 of the support bracket 40.
1.45 and is positioned in a fitted manner between each inner end 42.46.

At the tip of the latch member 60, an engaging claw portion 61 having three engaging protrusions that can be selectively engaged with and disengaged from three of the engaging holes 26, 26°, . . . is formed.

The operating shaft 52, which is fitted into the two curled portions 41 and 45 of the support bracket 40, is inserted and pivoted to such an extent that it does not protrude from the curled portion 45 on the distal end side.

A pressing piece 4 that presses the tip 54 of the operating shaft 52 so that the end surface 62 of the latch member 60 comes into contact with the inner end 42 of the curled portion 41
7 is provided at the end of the curled portion 45 on the distal end side.

Pushing the back of the end face 62, the engaging claw portion 61 engages the locking hole 26.26.
．． A plate 65 that biases in the direction of fitting into... is provided with its base fixed to the support racket 40.

Next, the effect will be explained.

The latch member 60 and operating shaft 52 of the seat slide device 10 are assembled as follows.

First, as shown in FIGS. 4(a) and 4(b), the two curled portions 41 of the support socket 40 of the seat side rail member 30
．． The operating shaft 52 is inserted through the shaft 45 and is brought into contact with and fitted into the pressing piece 47 at the end of the curled portion 45 on the distal end side.

After inserting the operating shaft 52, the latch member 60 is fitted between the two curled parts 41.45 while keeping its tip against the pressing piece 47, and the end surface 62 of the latch member 60 is held against the reaction force from the pressing piece 47. The latch member 6 is brought into contact with the inner end 42 of the curled portion 41 so as to receive the latch member 6, and in this state, as shown in FIG.
0 is fixed to the operating shaft 52 by welding or the like.

In the seat slide device IO, when the seat is stopped, the three protrusions of the engaging pawl portion 61 of the latch member 60 are in the locking holes 26 and 2.
6. ..., the seat-side rail member 30 and the vehicle body-side rail member 20 cannot slide, and the seat is held at the relevant position.

From this state, when you put your hand on the grip part 51 of the operating lever 50 and rotate the operating shaft 52 against the biasing force of the leaf spring 65, the latch member 60 also rotates, and the engaging claw part 61 is locked. hole 2
6,26. ...I'll take the exception.

The engaging claw portion 61 or the locking hole 26, 26. . . , the seat-side rail member 30 becomes movable in the longitudinal direction relative to the vehicle body-side rail member 20, and the entire seat is moved to a desired position.

Once the desired position is determined, release the grip part 51 and the leaf spring 6 will be released.
The operating shaft 52 and the latch member 60 are returned by the biasing force 5, and the engaging claw portion 61 engages with one of the locking holes 26, 26, . . . , thereby determining and fixing the seat position. .

"Effects of the Invention" According to the seat slide device according to the present invention, one end of the latch member disposed between the two curled parts of the support bracket fixed to the seat side rail member is attached to one inner end of both curled parts. Since the latch member is fixed to the operating shaft of the operating lever while the tip of the operating shaft is in contact with the pressing piece formed at the end of the curled portion, the latch member and the operating lever are pressed together. The operating shaft of the latch member cannot be moved back and forth, eliminating rattling in the front-back direction, thereby preventing rattling noise when starting or stopping, and reducing the gap between both ends of the latch member and each inner end of both curled parts. Since there is no need to carry out strict dimensional control regarding

[Brief explanation of drawings]

Each figure shows one embodiment of the present invention, FIG. 1 is a sectional view taken along the line I-I in FIG. 3, FIG. 2 is a perspective view of the main part showing the vicinity of the latch member, and FIG. A perspective view showing the whole, and FIG. 4 is an explanatory diagram of assembly. lO... Seat slide device 20 - Vehicle body side rail member 25... Locking portion 26... Locking hole 30.
...Seat side rail member 40...Support bracket 41.45--Curl portion 47...Pushing piece 50...Operation lever 52...Operation shaft 0 60...Latch member l 390-

Claims (1)

[Scope of Claims] 1. A seat side rail member is slidably fitted back and forth to a vehicle body side rail member provided with a locking portion, and a support bracket is fixed to the seat side rail member to pivot an operating shaft. In the seat slide device, a latch member that supports the operating shaft and selectively engages with the locking portion is fixed to the operating shaft, wherein the supporting bracket is provided with two curled portions, and the operating shaft is connected to the operating shaft between the two curled portions. In addition to fitting into and supporting the
The latch member is positioned between the two curled parts and fixed to the operating shaft, and a presser is provided to press the tip of the operating shaft so that the end surface of the latch member comes into contact with the inner end of one of the two curled parts. A seat slide device characterized in that the piece is provided at the end of the curled portion on the tip side.