JPH082349Y2 - Lock device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a lock device for an opening / closing body, and more particularly to a lock device for a trunk of a motorcycle.

(Prior Art) In this type of device, a double lock system is usually adopted. That is, it is composed of first locking means for locking and unlocking the cylinder lock, and second locking means for unlocking the cylinder lock and pushing it to release the closing mechanism of the opening / closing body. By the way, as a mechanism for making it impossible or possible to push the cylinder lock, a full-open sho 61-693
It is disclosed in Japanese Patent Publication No. 68 and has the following configuration. That is, a support member (stopper) is attached to the rear part of the device body (case) that accommodates the cylinder lock, and the support member (stopper) has a through hole through which the tip of the cylinder lock penetrates and a cylinder lock. And a hole (insertion hole) for locking or unlocking the protruding portion provided on the cylinder lock according to the rotational position of the cylinder lock. A return spring is interposed between the cylinder lock and the support member (stopper). Here, the support member (stopper) is
It is mounted by fitting a protrusion provided on the outer periphery thereof into a fitting portion formed in the apparatus main body (case) and pressing and fixing it by the urging force of the return spring.

(Problems to be Solved by the Invention) However, in the one disclosed in the above publication, the support member (stopper) is merely fitted into the fitting portion by the urging force of the return spring and prevented from coming off. If the return spring is damaged, the fitting force of the return spring becomes small, and the support member (stopper) may come off.

(Means for Solving the Problems) The present invention is intended to solve the above-mentioned problems in the prior art, and as a means therefor, a substantially cylindrical case and a push-fit into the case are used. The lockable cylinder lock is provided at the rear of the case, and the cylinder lock rotor engages with the rotor at the lock position to disable the cylinder lock pushing operation. The lock mechanism of the opening / closing body is released by the pushing operation of the cylinder lock, which is provided with a stopper member which is engaged and enables the pushing operation of the cylinder lock, and a return spring interposed between the cylinder lock and the stopper member. In the locking device configured as described above, the stopper member has a pair of protrusions formed on the outer periphery thereof, while the case has an inner peripheral surface formed in the axial direction of the cylinder lock. A recessed groove whose one end communicates with the rear end surface of the case, a rectangular hole which is also formed in the axial direction of the cylinder lock and is provided in parallel with the recessed groove, and a peripheral hole which communicates the recessed groove with the square hole on the front side thereof. Are respectively formed corresponding to the projections, and further, the projections of the stopper member are fitted into the concave grooves against the biasing force of the return spring, and the projections of the stopper members are inserted into the square holes through the peripheral holes. While being elastically deformed when it is engaged with the rectangular hole to allow the engagement, an engaging piece that elastically returns after engaging and engages with the protrusion is formed.

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

FIG. 1 is an exploded perspective view of a locking device according to the present invention, and FIG.
FIG. 3 is an explanatory view showing a mounting process of a stopper, FIG. 3 is a rear view of FIG. 1, and FIG. 4 is a longitudinal sectional view showing a state in which a lock device according to the present invention is mounted on a trunk for a motorcycle.

As shown in FIG. 4, a two-wheeled vehicle trunk 1 includes a box 4 and a trunk lid 2 that is hinged to one end of an opening edge of the box 4 to open and close the opening of the box 4. A U-shaped striker 3 is fixed to the trunk lid 2 on its free end side. A latch 5 is rotatably supported by the box 4 at a position facing the striker 3. The latch claw 5a of the latch 5 is engaged with the striker 3 so that the trunk lid can be locked. 2 can be held in a state in which the lid cannot be opened. Here, the latch 5 is biased by the spring 6 in the direction in which the locking claw 5a engages with the striker 3 (clockwise in FIG. 4).

As shown in FIGS. 1, 3, and 4, the box 4 is provided with a cylinder lock 7. The cylinder lock 7 is composed of a cylinder outer 8 and a rotor 9 which is integral with the cylinder outer 8 in the axial direction and is rotatable by 90 ° in the rotation direction. And the cylinder lock 7 is
It is housed in a case 10 fitted in a box. The cylinder outer 8 has a flange portion 8a at a substantially central portion thereof.
The cylinder lock 7 is prevented from slipping forward by bringing the flange portion 8a into contact with the inner surface of the front end of the case 10. A stopper 14 is attached to the rear portion of the case 10. A return spring 15 is interposed between the stopper 14 and the flange portion 8a of the cylinder outer 8 so that the cylinder lock 7 is always biased forward. The tip 9a of the rotor 9 faces the lower end 5b of the latch 5. Therefore, if the cylinder lock 7 is pushed against the urging force of the return spring 15,
The latch 5 rotates counterclockwise in FIG. 4 against the urging force of the spring 6, whereby the engagement between the locking claw 5a and the striker 3 is released, so that the trunk lid 2 is opened. The lid is ready.

On the outer circumference of the rotor 9, a pair of ridges 9b, 9c is provided behind the tip 9a. On the other hand, the stopper 14 is formed with a through hole 14a at the center thereof so as to penetrate the tip 9a of the rotor 9 and through holes 14b and 14c through which the protrusions 9b and 9c can be inserted. It is formed in series with the hole 14a. Here, at the lock position I shown in FIG. 3, the ridges 9b and 9c hit the stopper 14 and the cylinder lock 7 cannot be pushed. And
When the key is inserted into the cylinder lock 7 and the rotor 9 is rotated to the unlock position II (arrow A in FIG. 3), the ridges 9b and 9c are opposed to the insertion holes 14b and 14c. The lock 7 is ready to be pushed.

As shown in FIGS. 1 to 3, the stopper 14 is provided with a pair of protrusions 14d and 14e on the outer periphery thereof.
On the other hand, on the inner peripheral surface of the case 10, a concave groove 11 whose one end communicates with the rear end surface of the case 10 for attaching the stopper 14, a square hole 12 formed substantially parallel to the concave groove 11, A hole 12 and a peripheral hole 13 that communicates the concave groove 11 on the front side thereof are formed at two locations corresponding to the protrusions 14d and 14e of the stopper 14. Further, inside the square hole 12, there is provided an engaging piece 18 that extends rearward from the front end of the square hole 12 and is elastically deformable.

Here, attachment of the stopper 14 to the case 10 will be described.

First, the cylinder lock 7 and the return spring 15 are housed in order from the rear end of the case 10 (see FIG. 1). At this time,
The flange portion 8a provided on the cylinder outer 8 is in contact with the inner surface of the front end of the case 10, whereby the cylinder lock 7
It has been prevented from slipping forward. Further, one end of the return spring 15 is in contact with the flange portion 8a (see FIG. 4). Next, the stopper 14 is brought into contact with the other end of the return spring 15, and the projections 14d and 14e are formed into the concave grooves 11 and 11.
The stopper 14 is pushed into the case 10 against the biasing force of the return spring 15 while being positioned at the rear end. Then, the protrusions 14d and 14e of the stopper 14 reach the inside of the peripheral holes 13 and 13 (FIG. 2 (a)). At this time, the protrusion 9 of the rotor 9
b and 9c are inserted in the insertion holes 14b and 14c of the stopper 14, and the stopper 14 can be rotated by inserting a key into the cylinder lock 7 and rotating the rotor 9. When the stopper 14 is rotated in this way, the protrusion 14
d and 14e are engaged in the square holes 12 and 12 (Fig. 2 (b)). Protrusion
When 14d and 14e are engaged in the square holes 12 and 12, the protrusions 14d and 14e
Presses the engaging pieces 18, 18 to elastically deform them. When the cylinder lock 7 is pushed into the case 10 together with the key, the rear end surface 8b (Figs. 1 and 4) of the cylinder outer 8 is stopped by the stopper 14
Is pushed backward, and the protrusions 14d and 14e are fitted into the rear portions of the square holes 12 and 12, respectively. Then, the engagement pieces 18, 18 elastically return, and the tip end surfaces thereof come into contact with the surfaces of the projections 14d, 14e (FIG. 2 (c)).
As a result, the protrusions 14d and 14e of the stopper 14 are prevented from being displaced in the axial direction within the square holes 12 and 12, so that the stopper 14 can be reliably attached to the case 10.

(Effect of the Invention) With the present invention configured as described above, the stopper member can be securely attached to the case by the action of the engaging piece, so that even if the return spring is damaged,
It has an excellent effect that the stopper member does not come off from the case.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a lock device according to the present invention, FIG. 2 is an explanatory view showing a stopper mounting process, FIG. 3 is a rear view of FIG. 1, and FIG. 4 is a lock device according to the present invention. It is a longitudinal cross-sectional view showing a state in which the trunk is mounted on a motorcycle. 7 …… Cylinder lock, 8 …… Cylinder outer 9 …… Rotor, 10 …… Case 11 …… Concave groove, 12 …… Square hole 13 …… Peripheral hole, 14 …… Stopper 14d, 14e …… Projection 15… … Return spring 18 …… Engagement piece

Claims (1)

[Scope of utility model registration request] 1. A cylinder-shaped case, a cylinder lock housed in the case so that the cylinder lock is possible, and a cylinder lock that is provided at the rear of the case and engages with the rotor at the locking position of the cylinder lock rotor. And a return spring interposed between the cylinder lock and the stopper member, and a stopper member that disengages the rotor from the rotor at the locked position of the cylinder lock and enables the cylinder lock to be pushed. And a lock device configured to release the lock mechanism of the opening / closing body by pushing the cylinder lock, the stopper member has a pair of protrusions formed on the outer periphery thereof, while the case includes A concave groove formed on the peripheral surface in the axial direction of the cylinder lock and having one end communicating with the rear end surface of the case, a rectangular hole formed in the axial direction of the cylinder lock and arranged in parallel with the concave groove, and the concave groove and the corner. And a peripheral hole that communicates with the front side thereof are respectively formed corresponding to the protrusions, and the protrusions of the stopper member are formed into concave grooves in the square holes against the biasing force of the return spring. An engaging piece is formed that is elastically deformed to allow the engagement when it is inserted and is engaged with the square hole through the peripheral hole, and elastically returns after the engagement to engage with the protrusion. A locking device characterized by being used.