JPH0443557Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a spring mounting device for a cylinder lock case in which a spring is fitted into the cylinder lock case of an outside handle of an escutcheon type door for an automobile. .

[Conventional technology]

Publications have already been published regarding devices for preventing the rotor of a cylinder lock inserted into a cylinder lock case from being removed, such as Japanese Utility Model Application No. 108654/1983.

When such a snap spring is fitted into a cylinder lock case, both ends of the snap spring are expanded and fitted into the cylinder lock case.

[The problem that the idea aims to solve]

When a coil spring is fitted into a cylinder lock case by elastically expanding both ends and moving it along the outer circumferential surface of the cylinder lock case, the coil spring comes into contact with the outer circumferential surface of the cylinder lock case. This has the disadvantage that a large frictional resistance is generated and the coil spring cannot be smoothly inserted into the notched hole of the cylinder lock case.

[Means to solve the problem]

In order to eliminate the above-mentioned drawbacks, the present invention provides a cutout hole in the protruding part of a cylinder lock case that is attached to a door, etc., and a cutout hole is provided inside the protruding part on the outer peripheral surface of the rotor that is inserted into the cylinder lock case. A spring mounting device for a cylinder lock case comprising a coil spring having a protrusion that engages with a recess and a bent portion for preventing the rotor from coming off from the cylinder lock case, wherein the outer periphery of the cylinder lock case is The surface is characterized by having a plurality of protrusions formed in the axial direction.

[Effect]

With the configuration of the present invention, when the coil spring is locked to the position of the notch hole formed on the outer circumference of the cylinder lock case, the coil spring makes point contact with the plurality of protrusions formed on the outer circumference of the cylinder lock case. Since the coil spring is mounted while being attached to the cylinder lock case, frictional resistance can be reduced and the coil spring can be easily attached to the cylinder lock case.

〔Example〕

An embodiment of the present invention will be described with reference to the drawings.

Reference numeral 1 in FIG. 1 is an escutcheon member, into which a cylinder lock case 3 is fitted and fixed through a hole 2 formed in the escutcheon.

The projection 3' of the cylinder lock case 3 prevents the cylinder lock case 3 from rotating.

Further, a cutout hole 3'' is formed through the protrusion 3', and a plurality of protrusions 3a, 3b, 3c are formed on the outer peripheral surface of the cylinder lock case 3.

Reference numeral 4 denotes a coil spring, which has a bent portion 4' formed in a part thereof, and both ends 4a of this coil spring 4,
4b are opposed to each other with a gap between them. Reference numeral 5 denotes a rotor that is fitted into the cylinder lock case 3 and rotated by a key (not shown), and a protrusion 5a is formed on the outer peripheral surface of the rotor. 3, the coil spring 4 is prevented from coming out by the bent portion 4' of the coil spring 4, and the coil spring 4 is attached to both sides 5b, 5c of the protrusion 5a.
Both ends 4a and 4b of the rotor 5 are locked and biased by the coil spring 4 when the rotor 5 rotates.

FIG. 2 is an enlarged perspective view of the cylinder lock case 3 and the coil spring 4 fitted therein.

In the present invention, by forming a plurality of axial protrusions on the outer circumferential surface of the cylinder lock case, when the coil spring is locked to the position of the notch hole formed on the outer circumferential surface of the cylinder lock case, the coil spring is Because it moves on the outer circumferential surface of the cylinder lock case while contacting multiple protrusions on the outer circumferential surface,
Frictional resistance is low and coil springs can be easily installed.

[Effect of idea]

With the configuration of the present invention, it is easy to attach the coil spring to the outer peripheral surface of the cylinder lock case, and this attachment work can be carried out efficiently.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is an exploded perspective view, and Fig. 2 is an enlarged perspective view with a portion of a cylinder lock case fitted with a coil spring cut away. 1... Escutcheon member, 2... Hole, 3...
Cylinder lock case, 3a, 3b, 3c... protrusion, 3'... protrusion, 4... coil spring,
4'...Bending portion, 5...Rotor, 5a...Rotor protrusion, 6...Rotating cam.

Claims (1)

[Scope of utility model registration request] A notch hole is provided in a protrusion of a cylinder lock case to be attached to a door, etc., and a protrusion that engages with an inner recess of the protrusion is formed on the outer peripheral surface of a rotor to be inserted into the cylinder lock case, and In a spring mounting device for a cylinder lock case, which includes a coil spring formed with a bent portion to prevent the rotor from coming off from the cylinder lock case, the outer peripheral surface of the cylinder lock case has a plurality of protrusions in the axial direction. A spring mounting device for a cylinder lock case, characterized in that a spring mounting device is formed.