JPH0520633Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] This invention relates to an improvement of a motorcycle seat lock device.

[Technical background and problems of the invention]

On a motorcycle, the oil tank, battery, etc. are housed under the seat. For this reason, one end of the seat is connected to the frame with a hinge, and the other end is fixed by being hooked to a hook piece, and the seat is rotated by removing the hook piece as appropriate to facilitate refueling and inspection. A hook shaft provided with a hook piece is rotatably attached to the left and right brackets, and the hook piece is detached by rotation. The hook shaft is secured with a split pin or circlip to prevent it from coming off in the axial direction, and there are many parts.
Manufacturing costs are high.

[Purpose of invention]

In view of this, this invention uses a coil spring that biases the hook piece in the latching direction, and also biases the hook shaft in the direction of preventing it from coming out, thereby eliminating the need for a part to prevent the hook shaft from coming off, and reducing the number of parts. The purpose is to obtain a seat lock device for a motorcycle that can be made at low cost.

[Structure of the idea]

Hereinafter, embodiments of the present invention shown in the drawings will be described.

Hook shaft 2 with a key-shaped hook piece 1 welded to the center
The front side is bent into an L shape to form the lever 3. The left and right brackets 4 are welded and fixed to the frame 5, respectively. On the left and right brackets 4,
A horizontal hole 6 is provided in each side, and the hook shaft 2 is passed through it.
A hook shaft 2 is rotatably supported. One bracket 4 is provided with a stopper 7 against which the tip of the hook shaft 2 abuts. One end of a coil spring 8 is secured to the rear lower portion of the hook piece 1, and the other end of the coil spring 8 is secured to one of the brackets 4. In this case, the other end of the coil spring 8 biases the hook shaft 2 in the axial direction so that the tip of the hook shaft 2 comes into contact with the stopper 7 of one of the brackets 4, and also pushes the hook piece 1. It is latched to one bracket 4 at a position where it is biased in the direction of rotation in which it is latched to the lock bar. The seat 9 is attached to the frame 5 with a hinge at one end so as to be rotatable, and a lock bar 10 is provided at the other end, and the lock bar 10 is hooked onto the hook piece 1 and fixed.

Since the coil spring 8 biases the hook piece 1 toward the hooking side, it hooks onto the lock bar 10 and does not come off. To remove it, rotate the lever 3 against the coil spring 8, rotate the hook piece 1, and remove it from the lock bar 10. Also, coil spring 8
The hook piece 1 is also biased so that the tip of the hook shaft 2 is pressed against the stopper 7. Therefore, the hook shaft 2 does not come off toward the front.
Also serves as a retainer in the axial direction.

[Effect of idea]

As explained above, in this invention, a hook shaft with a hook piece in the center is rotatably attached to the horizontal holes of the left and right brackets fixed to the frame, and a tension is provided between the frame and the hook pieces. In a motorcycle seat locking device in which a hook piece is hooked to a seat lock bar by a coil spring, one end of the coil spring is hooked to the hook piece, the other end of the coil spring is hooked, and the tip of the hook shaft is hooked to a stopper on the frame side. Since the coil springs are latched at frame positions that are in the direction of contact and bias the hooks in the direction of latching them to the lock bar, the coil springs can bias the hook pieces in the latching direction and prevent them from slipping out of the hook shaft. direction. Therefore, it is not necessary to use a retaining part for the hook shaft, and the number of parts is reduced, thereby reducing manufacturing costs. Also, it is easy to assemble.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, with FIG. 1 being a front view, FIG. 2 being a side view, and FIG. 3 being a perspective view. 1...Hook piece, 2...Hook shaft, 4...Bracket, 5...Frame, 6...Horizontal hole, 7...Stopper, 8...Coil spring, 9...Seat, 1
0... Lock bar.

Claims (1)

[Scope of utility model registration request] A hook shaft with a hook piece in the center is rotatably attached to the horizontal hole of the left and right brackets fixed to the frame, and the hook piece is seated by a coil spring stretched between the frame and the hook piece. In a motorcycle seat lock device, the other end of a coil spring, one end of which is hooked to the hook piece, is moved in an axial direction in which the tip of the hook shaft is brought into contact with a stopper on the frame side, and the hook is hooked to the lock bar. A seat locking device for a motorcycle, characterized in that the seat is locked at a frame position that biases a hook shaft in both rotational directions for locking.