KR0117551Y1 - Chain lock - Google Patents

Abstract

Provides a chain lock device that prevents rain from entering the casing and improves the appearance while being able to withstand shock from the outside.

Of the casing 2 fixed to the fixed frame body 1, the lock unit 4 fitted into the visibility shaft barrel 3 of the side surface of the casing 2, and the lock shaft 13 of the lock unit 4; The blind hole 7 on the casing 2 side and the passage hole on the side of the visual shaft portion 3 abut the cam surface 6a of the lock cam 6, which is fitted into the protrusion 5 of the tip end and is substantially elliptical in cross section. The lock member 9 advancing to (8) and the flat torso surface of the leg portion 18 of the hook metal ball 11 in the blind hole 7 are flush with the fixing frame surface and are inserted perpendicularly to the ground at the same time. It is made of the hook metal ball 11, and locks to the recessed part 10 provided in the leg part 18 of the hook metal ball 11 by the movement of the lock cam 6 linked with the rotation of the key 29. The member 9 is engaged, and the hook metal sphere 11 is fixed with respect to the casing 2.

Description

Chain lock

1 is a front view showing a state of use of the chain lock device according to an embodiment of the present invention,

2 is a front view of the chain lock,

3 is a bottom view of the chain lock,

4 is a right side view of the chain lock device,

5 is a front view of a hook metal ball of the chain lock device,

6 is a cross-sectional view taken along the line A-A of FIG.

7 is a cross-sectional view taken along line B-B of FIG.

8 is a front view of the lock member of the chain lock device;

9 is a plan view in the lock,

10 is a plan view of the lock cam of the corresponding chain lock device,

11 is a bottom view of the rock cam,

12 is a side view of the corresponding rock cam,

* Description of the symbols for the main parts of the drawings *

1: fixed frame 2: casing

3: visibility shaft part 4: lock unit

5: stone part 6: rock cam

7: blocked hole 8: through hole

9: lock member 10: recessed portion

11 hook metal sphere 12 keyhole

13: visibility axis 14: screw hole

15: screw shaft portion 16: spring washer

17: nut 18: leg portion

19: home 20: step

21: chain press plate 22: chain

23: door 24: chain fixing metal ball

25: blocked hole 26: through hole

27: rotation angle control plate 28: fixed metal sphere

(Industrial use field)

The present invention relates to a chain lock device, which is used in a vending machine or the like and locks a chain or the like fixed to a door side to a casing fixed to a fixed frame body, thereby preventing theft of goods.

(Conventional technology)

In a conventional chain lock device, a casing fixed to a fixed frame body, a lock unit inserted into the visibility shaft cylinder to be drilled on the front side of the casing so as to be rotatable relative to the casing, and a closed hole provided in the front side of the casing. It consists of a hook metal ball which is inserted perpendicular to the plane and at the same time so that the flat body surface of the hook is horizontal to the ground, and the end of the chain or the like fixed to the door is connected to the hook metal ball. Is locked to the casing to prevent twisting of the door.

However, in this conventional apparatus, since the keyhole is provided in front of the casing, there is a high possibility that the lock unit will hit the rain directly, and the durability will be degraded due to the superiority that penetrates the lock unit. Moreover, since twisting and opening by a driver etc. can be performed easily from a front side, it is not preferable on crime prevention.

Further, in the conventional apparatus, since the hook metal sphere is located in front of the casing, and the flat body surface of the hook metal sphere is placed horizontally with respect to the ground, it is susceptible to impact destruction from above by a hammer or the like.

Moreover, since the hook metal sphere is provided in the direction which protrudes to the front side with respect to a casing, a rough and blunt image is provided and an external appearance is bad.

(Problem that plan is going to solve)

Accordingly, an object of the present invention is to provide a chain lock device that can withstand impact breakage from the outside while preventing rain from entering the casing and improving its appearance.

(Means to solve the task)

Hereinafter, referring to the reference numerals in the accompanying drawings, the casing 2 is fixed to the casing 2 fixed to the fixed frame body 1 and the corrective shaft cylindrical portion 3 which is installed in the side surface of the casing 2 with respect to the casing 2. The lock cam 4 which is inserted in a non-rotating manner and the protrusion 5 provided in the distal end portion of the locking shaft 13 of the lock unit 4 in a non-rotating manner, has a substantially elliptical longitudinal cross-sectional shape ( 6) and the closed hole 7 which abuts on the cam surface 6a of the said lock cam 6, and accompanies the rotation of the lock cam 6, and is contained in the surface parallel to the plane of the fixed frame body provided on the side surface of the casing 2; ), The lock member 9 advancing and retreating to the passage hole 8 provided so as to penetrate the visibility shaft barrel portion 3, and the leg 18 of the hook metal ball 1 is flat in the blind hole 7. The hook surface is inserted into the body of the hook metal sphere 11 in which the body surface is inserted at the same time and perpendicular to the ground at the same time in parallel with the plane of the fixed frame body, and the recessed portion 10 is provided in the leg portion 18. The lock member 9 is engaged with the recess 10 of the hook metal sphere 11 by the rotation of the key, so that the hook metal sphere 11 is fixed to the casing 2.

(Action)

The visibility shaft 13 and the corresponding visibility shaft are rotated in a predetermined direction by inserting the key 29 into the key hole 12 of the lock unit 4 secured to the locking shaft cylinder portion 3 of the casing 2. The lock cam 6 fitted to the protrusion 5 of 13 rotates.

When the longitudinal axis of the lock cam 6 is parallel to the longitudinal axis of the casing 2, two blocked holes included in a plane parallel to the fixing frame 1 provided on the side of the casing 2 ( 7) and the bottom portion 9a of the lock member 9 into which the advancing and free passage is inserted into the through hole 8 provided through the visibility shaft barrel portion 3 abuts against the wall cam portion 6a of the lock cam 6. Since the force acts in the direction in which the lock member 9 is extruded to the outside of the visibility shaft portion 3, the tip of the lock member 9 is protruded and held in the blocked hole 7, The distal end of the locking member 9 engages with the recess 10 provided in the leg 18 of the hooked metal sphere 11, and the hooked metal sphere 11 with respect to the casing 2 It is locked correctly.

When removing the hook metal sphere 11 from the casing 2, the key 29 is rotated in a predetermined direction so that the longitudinal axis of the lock cam 6 is perpendicular to the longitudinal axis of the casing 2. The gap between the bottom face portion 9a of the cam member 9 and the wall cam portion 6a of the lock cam 6 causes the lock member 9 to be pushed out of the visibility shaft portion 3. Will not work.

Therefore, the hook metal sphere 11 is formed by the action of the hemispherical cam surface 9b provided on the tip of the lock member 9 and the cam surface 10a of the recess 10 provided on the leg of the hook metal sphere 11. ), The lock member 9 retreats to the visibility shaft barrel 3 side, and the hook metal sphere 11 can be pulled out from the casing 2.

EXAMPLE

In the example of illustration, as shown in FIG. 1, the screw hole 14 is provided in the fixing frame 1, and the screw shaft part 5 integrated with the casing 2 is attached to the said screw hole 14. As shown in FIG. It is sandwiched from the front side and secured to the fixed frame body 1 by the spring washer 1b and the nut 17 via the fixed metal ball 28 at the rear side of the fixed frame body 1. The horizontal cross section of the wall cam portion 6a of the lock cam 6 is formed in an elliptical shape with two parallel straight portions and two circular arc portions, and the lock member 9 is formed by the difference between the length in the major axis direction and the length in the minor axis direction. Retreat.

The groove 19 is provided in the part of the leg part 18 of the hook metal ball 11, The step 20 is provided in the part of the leg part 18 on the opposite side to the said groove 19, and a chain press plate (21) is inserted.

The hook metal ball 11 is inclined upward with respect to the 20 degree fixing frame from the opposite side half seen from the leg part 18. As shown in FIG.

In the embodiment of FIG. 1, the chain 22 is connected to the hook metal sphere 11 to be inserted into the casing 2 fixed to the fixing frame 1, and the other end of the chain 22 is the door 23 side. It is connected to the chain fixing metal sphere (24) fixed to it.

In the embodiments shown in FIGS. 6, 7, and 10 to 12, the longitudinal cross-sectional shape of the protrusion 5, which is integrally installed at the rear end of the visibility shaft 13, is made into a non-circular shape, and is a lock cam. In the bottom face side of (6), the closed hole 25 of the same shape as the longitudinal cross-section of the protrusion part 5 is provided, and the lock cam 6 is rotatably fitted with respect to the visibility shaft 13.

Moreover, between the visibility shaft 13 and the lock cam 6, the rotation angle regulating plate 27 which has the through-hole 26 of the longitudinal shape of the protrusion part 5, and the non-circular shape of the same shape is the visibility axis 13 It is fitted with no rotation.

[Effect of design]

As described above, in the present invention, the locking shaft portion 3 is provided on the side surface of the casing 2, and the locking unit 4 is inserted into the locking shaft portion 3 in a non-rotating manner, so that the locking unit 4 ) Is less likely to hit the rain directly, so the durability is improved, and because it is difficult to twist and open by a driver or the like, it is excellent in security.

Furthermore, in the present invention, the blind hole 7 for hooking the hook metal ball 11 is provided on the side surface of the casing 2, and the hook metal ball 11 is placed on the flat body of the hook perpendicular to the ground. Since it is equipped with a hammer, when the hammer is hit from above with a hammer or the like, the hammer slides at the circular portion of the tip of the hook metal sphere 11, so that it cannot be sufficiently hit and is strong against violent destruction.

This arrangement also improves the appearance of the chain lock device.

Thus, when attempting to hit the hook metal ball 11 hitting the side of the casing (2), the hammer hits the metal fixing frame or door on which the casing (2) is fixed, or the hook metal ball hammered with a hammer ( The shock vibration of 11) propagates to the fixed frame or door and makes a loud sound by public reflection, so that it can give psychological motivation to stop the rock device from breaking and twisting, and to suppress the opening of the vending machine. Can be.

Claims (1)

A casing 2 fixed to the fixed frame body 1, a lock unit 4 inserted into the visibility shaft portion 3 which is installed in the side surface of the casing 2 so as not to be rotated with respect to the casing 2; The lock cam 6 is inserted into the protrusion 5 provided at the distal end of the locking shaft 13 of the lock unit 4 in a non-rotating manner, and the lock cam 6 which has an approximately elliptical longitudinal cross-section is in contact with the cam face 6a. Advancing and retreating to the blind hole 7 contained in the surface parallel to the fixed frame body plane provided in the side surface of the casing 2, and the passage hole 8 provided so that the visibility shaft cylinder part 3 may penetrate with the rotation of (6). The locking member 9 and the flat body surface of the leg portion 18 of the hook metal sphere 11 in the blind hole 7 are flush with the plane of the fixing frame and are inserted perpendicular to the ground at the same time. 18, which consists of a hook metal ball 11 having a recess 10 provided therein, and locks to the recess 10 of the hook metal ball 11 by the rotation of the key 29. As shown in FIG. Chain lock device, characterized in that the member (9) is engaged.