JPH0324428Y2 - - Google Patents

Description

[Detailed Description of the Invention] A. Field of Industrial Application The present invention relates to a seat adjuster device that moves and adjusts the seat of an automobile to a position suitable for driving.

B. Conventional technology Automobile seat adjuster devices were developed in the 1970s.
-28672 publication, Utility Model Publication No. 58-26187, etc. exist.

C. Problems to be solved by the invention The above-mentioned adjuster device requires a high degree of safety for the occupants, but in the event of a collision, etc.
Excessive force acts on the locked body,
There is a risk that the pivot portion of the lock body, which is pivotally supported on the rail by shaft caulking, may be damaged, and safety cannot be guaranteed. Therefore, in order to prevent this, the rails are made thicker, and moreover, a complicated mechanism using a large number of members is adopted. Therefore, there is a disadvantage that the above-mentioned structure increases the weight.

D. Means for solving the problem In order to eliminate such drawbacks, the present invention installs a reinforcing plate on either one of the fixed rail and the movable rail, and between the reinforcing plate and the rail, A lock body that locks with the locking part provided on the other rail is inserted and clamped, and a shaft hole is drilled in the lock body, and a pin is inserted through the shaft hole drilled in the reinforcing plate and the rail into this shaft hole. It is inserted so that the pin is the center of rotation of the lock body.
It was offered as a seat adjuster with a simplified structure, lighter weight, and improved strength.

E. Function When you want to adjust the position of the seat, operate the operating lever provided on the lock body, and the lock body rotates around the pin inserted through the shaft hole of the reinforcing plate and movable rail through the shaft hole provided on the lock body. When a lock is applied, the lock part of the lock body, which is locked to the locking part provided on the fixed rail, rotates against the tension spring and the lock is released. The rail is now free to move to the selected position, and when the operating lever is released at this moved and adjusted position, the lock body engages with the lock provided on the fixed rail by the bias of the tension spring. It engages and locks toward the stop portion.

F Example 1 is a fixed rail fixed to the floor side of a car,
A locking portion 2 having a plurality of locking holes continuously formed in the longitudinal direction is provided on one side. Reference numeral 3 denotes a movable rail to which the bottom surface of the seat is fixed, and is slidable on the fixed rail 1 along the fixed rail. Numeral 4 is a lock body, with an operating lever 5 extending from one end, and the other side bent downward into an L-shape, with a protruding piece 6 on this bent horizontal part 4', and a fixed rail on one end. A locking portion 4a is provided which engages with one of the locking portions 2 of 1 to lock the fixed rail 1 and the movable rail 3, and furthermore, a pin 11 (described later) is provided on the horizontal portion 4'' on the operating lever 5 side. Shaft hole 12 to insert
It is configured by providing.

On the movable rail 3, a bent reinforcing plate 8 that provides a space 7 corresponding to the thickness of the lock body 4 into which the lock body 4 is inserted is integrally fixed by welding or the like, and this reinforcing plate 8 and the movable rail 3 are fixed together by welding or the like. The lock body 4 is inserted into the space 7 between them and is held between the movable rail 3 and the reinforcing plate 8.

Further, the movable rail 3 and the reinforcing plate 8 are provided with shaft holes 9 and 10 at opposite positions passing through the space 7, and the shaft holes 10 and 12 provided in the reinforcing plate 8 and the lock body 4 are passed through the shaft holes 9 and 10 toward the shaft holes 9 and 10. The pin 11
is inserted, and the lock body 4 rotates with this pin 11 serving as the center of rotation of the lock body 4.

In this case, the position of the pin 11 at the center of rotation is preferably located directly above the inner side wall of the fixed rail 1. This is because the center of rotation and the engaging part of the lock part are both on the same straight line with the wall. It provides strength and is the safest.

Between the lock body 4 and the movable rail 3,
A tension spring 13 whose one end is locked to the folded piece 6 is interposed to urge the locking portion 4a of the lock body 4 toward the locking portion 2 of the fixed rail.

G. Effects of the invention As described above, the invention includes a fixed rail fixed to the floor side of the vehicle and a movable rail that moves along the fixed rail, one of which has a plurality of locking parts,
In the seat adjuster device, the lock body is provided with a lock body having a lock part that locks on the locking part on the other side, and the lock body is inserted and held between the reinforcing plate attached to one rail and the rail. At the same time, a shaft hole is drilled in the lock body, and the shaft hole is inserted into the shaft hole.
A pin is inserted through the shaft hole drilled in the reinforcing plate and the rail, so that the pin becomes the center of rotation of the lock body, and the rotating shaft support of one rail is fixed and reinforced by the reinforcing plate. , furthermore,
Since the lock body is held between the reinforcing plate and the rail, the force applied to the rail is dispersed. Therefore, it is not necessary to use thick rails. Moreover, twisting can be prevented. Furthermore, since the locking action is performed by only the lock body, the structure can be made simple and lightweight, and the strength can be improved.

[Brief explanation of the drawing]

The drawings show an embodiment of the automobile seat adjuster device according to the present invention, in which Fig. 1 is a side view, Fig. 2 is a plan view, and Fig. 3 is a longitudinal sectional plan view taken along the line shown in Fig. 1. . DESCRIPTION OF SYMBOLS 1...Fixed rail, 2...Locking part, 3...Movable rail, 4...Lock body, 4', 4''...Horizontal part, 4a...Lock part, 5...Operation lever, 6...Folding piece, 7...Space, 8... Reinforcement plate, 9, 10... Shaft hole, 11...
Pin, 12...shaft hole, 13...spring.

Claims (1)

[Scope of utility model registration request] A fixed rail fixed to the floor side of the vehicle and a movable rail movable along the fixed rail, one of which has a plurality of locking parts, and the other of which has a lock part that locks with the locking part. In the seat adjuster device, the lock body is inserted and held between the reinforcing plate and the rail, both ends of which are attached to one of the rails, and the lock body is provided with a shaft hole. An automobile seat adjuster device characterized in that a pin passed through the shaft hole bored in the reinforcing plate and the rail is inserted into the shaft hole so that the pin becomes the center of rotation of the lock body.