JP3108633B2 - Auxiliary lock - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of an auxiliary lock which is used in a vending machine or the like and which is attached to a lock other than a normal lock which enhances a security effect.

[0002]

2. Description of the Related Art Generally, an auxiliary lock used in a conventional vending machine or the like is equipped with, for example, a chain lock in addition to a normal lock. As a chain lock, a type in which one end of a chain is fixed to a main body of a vending machine and a free end of the chain is locked by a lock provided on a door side is known. Auxiliary locks without a chain have also been proposed.

[0003]

However, the conventional chain lock described above has a disadvantage that the chain is cut by a chain cutter or the like. In addition, if the diameter of the chain is increased so as not to be cut, the weight of the chain lock itself increases, thereby deteriorating the operability, and there is a disadvantage that the whole becomes large and the chain protrudes into a sidewalk or the like. Further, in a type that does not use a chain, a lock is attached to a bar member, and when unlocking, the entire bar member comes off and may be lost. Furthermore, since all the bar members come off, it is necessary to operate with both hands, and there is a disadvantage that the operability is poor and the handling is complicated. Further, there is a possibility that a crowbar or the like may be inserted into the joint of the lock to be destroyed.

[0004] An object of the present invention is to provide an auxiliary lock for a vending machine which has improved the safety of the auxiliary lock and has excellent operability in view of the above-mentioned conventional disadvantages.

[0005]

The auxiliary lock according to the present invention comprises:
A first lock body, engages with the first lock body, composed of a second lock body to leave, on the first lock body operated by the operating pin of the cam member is rotated by the lock cylinder A lock plate to be locked and an engagement recess for projecting and retracting a bar member locked and unlocked by the lock plate are provided, and the second lock body is engaged by inserting the bar member through a through hole. A ring portion is formed, and the bar plate member is projected into the engagement concave portion to lock the auxiliary lock.
Loosely fitted actuating aperture is in the actuated pin is formed substantially in the center
That is.

[0006] Locked by the cam member which was in the unlocked state
When the plate is moved from the unlocked state to the lockable position,
When the engaging portion of the lock plate comes into contact with the large diameter portion of the bar member,
That is to say, a lockable state is established in which no further movement is made.

[0007]

As described above, according to the auxiliary lock according to the present invention, it is possible to improve security and to improve operability in locking and unlocking.

[0008]

An embodiment of the present invention will be described below with reference to the accompanying drawings. 1 is an overall perspective view showing the unlocked state of the auxiliary lock of the present invention, FIG. 2 is an overall perspective view showing the unlocked state of the auxiliary lock of the present invention, and FIG. 3 is a plan view showing the unlocked state of the auxiliary lock. FIG. 4 is a cross-sectional view showing the unlocked state of the auxiliary lock. The auxiliary lock according to the present invention includes a first lock body 10 and a second lock body 11 that is engaged with and disengaged from the first lock body 10.
It is composed of

The first lock body 10 includes a cylinder lock 12.
The cam member 13 is driven to rotate by the inner cylinder 12 a of the cylinder lock 12. Cylinder lock 12
Is fixed to the first lock main body 10 by a fixing tool (not shown). The cam member 13 has a cylindrical, concave portion 13a of the inner cylinder of the cylinder lock 12 is engaged at one end
An operating pin 13b is provided at an eccentric position at the other end. Therefore, the cam member 13 is
When rotated by the inner cylinder 12a, the operating pin 13b moves on the circumference.

The lock plate 14 is provided with the cylinder lock 12.
Is provided in a recess 16 formed perpendicularly to the recess 15 in which is mounted, and is urged by a spring 17 in a direction of a bar member 18 provided in parallel with the recess 15. The lock plate 14, the projection 14a to be engaged in the spring 17 is provided at the top
And an operating hole 1 into which the operating pin 13b is loosely fitted substantially at the center.
4b is provided, the engaging portion 14c which engages with the small-diameter portion 18a of the locking bar 18 to the lower end is formed.

The bar member 18 has a small-diameter portion 18a which engages with the lock plate 14 at substantially the center and a spring plate 19.
Is fixed. The bar member 18 is urged in a direction projecting from the first lock body 10 by a spring 20 having one end locked to the spring plate 19.

Further, the first lock body 10 is formed with an engaging recess 21 for projecting and retracting the bar member 18 described above. The engagement recess 21 has a tapered shape.
Further, the first lock body 10 is provided with a recess 10 a for receiving a flange 22 formed on the second lock body 11.
Further, a semicircular projection 27 is formed on the joint surface with the second lock body 11, and a fixing screw 28 is provided on the mounting surface.

The second lock body 11 is formed with an engagement ring 23, which engages with the above-mentioned engagement recess 21. Further, a through hole 24 through which the bar member 18 penetrates is formed in the ring portion 23. Furthermore, the second lock body 11
Has a collar 22, and has an engagement recess 21 and a ring portion 23.
Is configured to cover the junction.

The second lock body 11 has a semicircular recess 26 formed on the joint surface with the first lock body 10.
The semi-circular protrusion 2 formed on the first lock body 10 described above.
7 engage. A fixing screw 29 is provided on the mounting surface of the second lock body 11.

Next, a method of using the auxiliary lock configured as described above will be described. First, when attaching to a vending machine or the like, the first lock body 10 and the second lock body 1
1 and fixed to fixing screws 28 and 29 provided on the mounting surface. Usually, the first lock body 10 is attached to a main body of a vending machine or the like, and the second lock body 11 is attached to a door that opens and closes. The auxiliary lock attached in this way,
When the vending machine door (second lock body side) is closed,
The engagement recess 21 and the ring 23 are engaged. Further, the joint surface between the engagement concave portion 21 and the ring portion 23 is covered with a flange 22.

FIGS. 6 to 8 are explanatory views showing the relationship among the cam member 13, the lock plate 14, and the bar member 18. FIG. FIG.
In, the cam member 13 is at the unlock position, and the operating pin 13b is at the top dead center. The lock plate 14 includes the spring 1
7 is moved in the direction of arrow A against the urging force. Since the lock plate 14 is raised, the bar member 18 can move freely.

FIG. 7 shows an intermediate operation until the lock plate 14 moves from the unlocked state to the lockable position. When the cam member 13 in the unlocked state is rotated by 180 degrees, the lock plate 14
Try to move in the direction. However, the engaging portion 14c of the lock plate abuts on the large diameter portion of the bar member 18 and does not move any further. This state is a lockable state.

FIG. 8 shows the bar member 18 in the lockable state.
Is pressed to show the state in which locking is completed. When the bar member 18 is pushed in, the engaging portion 14c falls into engagement with the small diameter portion 18a of the bar member. FIG. 5 is a cross-sectional view showing the locked state of the auxiliary lock. The bar member 18 is immersed inside the first lock main body 10 and cannot be operated from the outside. Further, since the lock plate 14 is engaged with the small diameter portion 18a of the bar member 18, the lock does not come off.

When the auxiliary lock is unlocked, FIGS.
Turn the cylinder lock 12 with a key from the state shown in FIG.
Then, the cam member 13 is rotated by 180 degrees through the lever, and the lock plate 14 is pulled up in the direction of arrow A (see FIG. 6) against the urging force of the spring 17. Then, as shown in FIG. 4, the engagement between the engagement portion 14c of the lock plate and the bar member 18 is released,
By the urging force of the spring 20, the bar member 18 is moved to the first lock body.
It protrudes from 10 . When the bar member 18 protrudes, the ring portion 23 comes off, and the second lock body 11 is moved to the first lock body.
10 can be removed.

In the above description, the case where the collar 22 is formed on the second lock body 11 has been described.
Formed in the lock body 10 and the engagement recess 21 and the ring 2
3 may be covered.

Incidentally, the present invention is not limited to the above embodiments, and various design changes can be made based on the technical idea of the present invention.

[0022]

As described [Effect Invention above in detail, according to the auxiliary lock according to the present invention, it consists of a first lock body, engages with the first lock body, a second lock body to leave The first lock body has a lock plate which is operated by an operating pin of a cam member which is rotationally driven by a cylinder lock, and an engagement recess for projecting and retracting a bar member which is locked and unlocked by the lock plate. A ring portion is formed in the second lock body so that the bar member is inserted into the through hole and engaged with the second lock body, and an auxiliary lock that locks the bar member by projecting the bar member into the engaging recess. In the above, since the lock plate is formed with an operation hole into which the operation pin is loosely fitted at substantially the center thereof , the overall configuration can be made compact and the lock can be performed with one hand, thereby improving operability. Can do things .

[0023]

[0024]

[0025]

[Brief description of the drawings]

FIG. 1 is an overall perspective view showing a locked state of an auxiliary lock according to the present invention.

FIG. 2 is an overall perspective view showing an unlocked state of the auxiliary lock of the present invention.

FIG. 3 is a plan view showing an unlocked state of the auxiliary lock.

FIG. 4 is a transverse sectional view showing the unlocked state of the auxiliary lock.

FIG. 5 is a transverse sectional view showing a locked state of the auxiliary lock.

FIG. 6 is an explanatory view showing a relationship when a cam member, a lock plate, and a bar member used in the auxiliary lock are unlocked.

FIG. 7 is an explanatory diagram showing a relation of a cam member, a lock plate, and a bar member used in the auxiliary lock during an intermediate operation.

FIG. 8 is an explanatory diagram showing a relationship when a cam member, a lock plate, and a bar member used by the auxiliary lock are locked.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 1st lock main body 11 2nd lock main body 12 Cylinder lock 12a Inner cylinder 13 Cam member 13a Concave part 13b Operating pin 14 Lock plate 14c Engaging part 15 Concave part 16 Concave part 17 Spring 18 Barrel member 18a Small diameter part 19 Spring plate 20 Spring 21 engagement concave portion 22 flange 23 ring portion 24 through hole 25 concave portion 26 concave portion 27 protrusion 28, 29 fixing screw

Claims (2)

(57) [Claims] 1. A consists of a first lock body, engages with the first lock body, a second lock body to leave, the first
The lock body is provided with a lock plate that is operated by an operating pin of a cam member that is rotationally driven by a cylinder lock, and an engaging recess that projects and retracts a bar member that is locked and unlocked by the lock plate. The second lock body has a ring portion for engaging the bar member by inserting the bar member through the through-hole. The auxiliary lock for projecting the bar member into the engaging recess and locking the lock member, An auxiliary lock, characterized in that an operating hole into which the operating pin is loosely fitted is formed substantially at the center of the plate. 2. A lock by a cam member in an unlocked state.
When the plate is moved from the unlocked state to the lockable position,
When the engaging portion of the lock plate comes into contact with the large diameter portion of the bar member,
It will be in a lockable state that will not move any more.
The auxiliary tablet according to claim 1,