JPH0351491Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a structure for connecting and fixing a rotor and a cam in a cylinder lock type steering lock device for an automobile.

[Conventional technology and problems]

To prevent the rotor from coming off in a conventional cylinder lock type steering lock device, a tumbler for preventing it from coming off is built into the rotor via a spring, similar to the tumbler mechanism, and an engaging groove is formed on the inner wall of the cylindrical body corresponding to the protrusion of the tumbler. The protrusion of the retaining tumbler is fitted into the engagement groove to prevent the rotor from coming off from the body.

This is done after the device or switch is assembled.
It is widely used when only the rotor part is later assembled, but when the rotor is later assembled, the tumbler that prevents it from coming out protrudes from the rotor, so it is necessary to push it against the spring and insert it into the body. However, skill was required to perform this work efficiently.

[Means to solve the problem]

The present invention eliminates the need for the above-mentioned skilled work, and instead of the tumbler to prevent it from coming off, an elastic pawl is provided on the cam side that is connected and fixed to the tip of the rotor, and the tip of the rotor is engaged with the elastic pawl. The rotor and cam are connected and fixed in a so-called "hell fit" state by simply pushing the rotor into the body with no protruding parts on the outer periphery by inserting the key. .

〔Example〕

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

In the figure, reference numeral 1 denotes a rotor, the tip of which is formed in the shape of a square plug, and two opposing sides of the square plug 2 are provided with recesses 3, 3 in the form of horizontal grooves.

Reference numeral 5 denotes a cam disposed at the tip of the rotor, and a depression 6 is formed in the center of the rear part of the cam so that the tip of the rotor can slide up and down. A locking pawl 7 is fixed with its open portion facing upward. This locking pawl is provided with a locking shoulder 8 on the inner surface of the U-shaped open end, and the open end is formed to face slightly inward in a natural state, and the square plug at the tip of the rotor 2 from above, the open end of the U-shaped locking pawl is opened and the locking shoulder 8 elastically fits into the recess 3 at a position corresponding to the horizontal groove-shaped recess 3, and the rotor and cam are connected. It is connected and fixed.

[Effect of idea]

In the present invention, each tumbler is housed in the rotor by inserting the key into the rotor due to the above-mentioned configuration, and since there is no other protruding object in the outer circumferential direction, the rotor is inserted into the cylinder 9 as it is, and the rotor is removed. When the tip is pushed into the rear end of the cam below, the rotor tip and the latching claw of the cam are engaged with one touch and are fixedly connected.

Therefore, there is an effect that the engagement between the rotor and the cam can be extremely easily connected and fixed even by an unskilled person.

[Brief explanation of the drawing]

FIG. 1 is a vertical side view showing an embodiment of the present invention;
FIG. 2 is a partially enlarged perspective view of the tip of the rotor, and FIG. 3 is a perspective view of the latching claw. DESCRIPTION OF SYMBOLS 1... Rotor, 2... Square plug part, 3... Recessed part, 5... Cam, 6... Recess, 7... Latching claw, 8... Latching shoulder, 9... Cylinder.

Claims (1)

[Claims for Utility Model Registration] 1. In a cylinder lock type steering lock device for automobiles, a spring-made latch claw 7 is fixed to the rear end of a cam 5 connected to the tip of the rotor 1, The rotor fixing of a cylinder lock is provided with a recess 3 that engages with the locking pawl at the tip, and the locking pawl and the recess are automatically connected and fixed when the rotor is inserted into the cylinder. Device. 2. The rotor fixing device for a cylinder lock according to claim 1, wherein the latch claw is a U-shaped leaf spring, and the tip of the rotor is a square shaft with a horizontal groove on the side surface.