JPH07107338B2 - Double 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 double locks used in vending machines and the like.

[0002]

2. Description of the Related Art Generally, a lock used in a conventional vending machine or the like is called a handle lock, and a handle is housed in a handle case attached to a door, and a cylinder lock is attached to the handle. There is. And, for the sake of safety, chain locks were installed side by side. In addition, a double lock type has been proposed.

[0003]

By the way, in the above-mentioned conventional double lock, since the double lock is installed side by side with one door of the vending machine, the door can be replenished with products to be sold. Had to be opened, and there was the disadvantage that the cash storage part was opened at the same time. This was not preferable from the standpoint of managing vending machines. In other words, part-time employees only need to replenish products. This is because it is safer for employees who are specialized in cash to collect cash. In addition, in the conventional double lock having a structure in which the locks are simply provided side by side, since each lock appears, there is a drawback that it is easily broken.

The object of the present invention was made in view of the above-mentioned drawbacks of the prior art. It is possible to separately manage the product management and the cash management of a vending machine, and to provide a double lock having excellent puncture resistance. To do.

[0005]

A double lock according to the present invention comprises a handle case fixed to a door side, a handle housed in the handle case and biased to project outward. A first lock attached to the handle with a fixing metal fitting, and a second lock fixed to a position covered by the handle in the handle storage portion of the handle case by a fixing mechanism. The fixing mechanism includes a drive head, a clutch mechanism, and a fixing piece,
The second lock can be replaced by loosening the fixing piece via a clutch that is intermittently connected by the second lock.

[0006]

As described above, the double lock according to the present invention is provided with the second lock fixed by the fixing mechanism at the position covered by the handle in the handle storage portion of the handle case, and therefore, in the normal state, the second lock is provided. Since the lock is not shown, it is possible to increase the safety against breakage. Further, since the second lock is loosened by the fixing mechanism via the clutch that is interrupted by the second lock, it cannot be replaced unless the second lock is released. Further, the lock can be changed from the front side, which was conventionally done from the back side.

[0007]

An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a plan view showing the overall configuration of a double lock according to an embodiment of the present invention, FIG. 2 is a sectional view showing the overall configuration, FIG. 3 is a sectional view of a fixing mechanism, and FIG. 4 is a lock. It is an assembly diagram showing a fixing mechanism of. Here, double lock 10
Is a handle case 11 fixed to the door side, a handle 12 housed in the handle case 11 and biased so as to project outward, and a first fitting attached to the handle 12 with a fixing metal fitting. A lock 13 and a second lock 15 fixed by a fixing mechanism at a position covered by the handle 12 in the handle storage portion 11d of the handle case 11 are provided.

As shown in FIG. 2, the handle case 11 is formed in a T-shape by a cylindrical body 11a and a mounting portion 11b orthogonal to the cylindrical body 11a. Around the cylindrical body 11a, a recess 20 with which the bar member 19 engages is formed, and a through hole 11c into which a bolt 16d at the rear end of the inner case bolt 16 is inserted is formed in the rear end portion. Has been done. On the other hand, the handle storage portion 11 is attached to the attachment portion 11b.
The mounting portion 11b is attached by abutting the back surface side thereof.

The handle 12 is formed in a substantially T shape by a cylindrical body 12a which is inserted into the cylindrical body 11a and a grip portion 12b which is provided orthogonal to the cylindrical body 12a.
Then, the compression spring 17 disposed inside the inner case bolt 16 urges the handle case 11 in a protruding direction. Further, the first lock 13 is fixed to the lock storage hole 18 on the front surface of the handle 12 by a fixing metal fitting 22.

The head of the cam 21 is inserted through the inner cylinder 12a provided with the first lock 13 rotatably.
By unlocking the lock 13 of the inner cylinder 13a and the cam 2
1 can be rotated. A pair of barb members 19 are arranged at the rear end of the cylindrical body 12a of the handle 12, and are biased by a spring around a pin in a direction projecting from the opening.

The fixing mechanism 23 is used for the drive head 2
4, a clutch mechanism 25, and a fixed piece 26. Here, the drive head 24 has a cross-shaped notch 24a and is rotatably supported. A screw cylinder 27 is disposed opposite to the rear end 24b of the drive head 24, and a hexagonal hole 27a is formed in the center of the screw cylinder 27. A drive shaft 28 having a hexagonal outer periphery is inserted into the hexagonal hole 27a. Drive shaft 28
A notch 28a is formed at the tip of the drive head 24 so that it can be fitted to the rear end 24b of the drive head 24.

The screw formed on the outer circumference of the screw cylinder 27 includes
The up nut 29 is screwed. Up nut 29
Is formed in a substantially cubic shape, and has inclined grooves 29a formed on both side surfaces. Pins 26a, which are erected on both legs of the fixed piece 26, are loosely fitted in the inclined grooves 29a. On the surface of the fixed piece 26 that comes into contact with the second lock 15, the uneven groove 26b is formed.
Are formed.

The fixed piece 26, the screw cylinder 27, the drive shaft 28, and the up nut 29 are combined to form the slider 3.
It's on top of 0. Also, at the rear end of the slider 30,
The slider head 31 is combined. Then, it is urged by a spring 33 arranged between the casing 34 and the casing 34 in a direction projecting forward. The contact portion 31a of the slider head 31 is in contact with the cam surface 32a of the lock bolt 32 fitted to the rear end of the second lock 15.

The clutch mechanism 25 comprises a slider 30, a slider head 31, a lock bolt 32, a spring 33 and the like. That is, the lock bolt 32 is rotated by rotating the second lock 15, and the cam surface 32a moves the slider 30 and the slider head 31 back and forth to disconnect the drive head 24 and the drive shaft 28.

Next, the operation of the double lock constructed as above will be described. First, when unlocking, the first lock 13 is unlocked with a key, and the inner cylinder 13a is rotated. Inner cylinder 13
When a rotates, the cam 21 engaged with this rotates.
When the cam 21 rotates, the operating portion rotates and presses the contact portion of the bar member 19 against the spring.

When the abutting portion is pressed, the bar members 19 retract, disengage from the engaging notches of the inner case bolt 16, and the handle 12 projects forward due to the biasing force of the compression spring 17. When the handle 12 projects, it is free to rotate and the second lock 15 appears. When the second lock 15 appears, it can be unlocked with a key.

The case of replacing the second lock 15 will be described. When the second lock 15 is locked, as shown in FIG. 7, the drive head 24 and the drive shaft 28 are separated from each other. This is because the mountain portion of the cam surface 32a of the lock bolt 32 and the contact portion 31a of the slider head 31 are in contact with each other. Next, when the second lock 15 is unlocked, the lock bolt 32 also rotates as the inner cylinder of the second lock 15 rotates, as shown in FIG. Lock bolt 32
When is rotated, the valley portion of the cam surface 32a and the slider head 3
The first contact portion 31a contacts, and the slider 30 is moved forward by the spring 33. Then, the drive head 24 and the drive shaft 28 are engaged with each other, and the screw cylinder 27 is attached to the drive head 2.
It is rotated by 4. When the screw cylinder 27 is rotated, the up nut 29 screwed with the screw cylinder 27 advances and the fixing piece 26 loosens. When the fixing piece 26 is loosened, the second lock 15 can be freely removed.

After replacing the removed lock with another new one, tighten the drive head 24 with a screwdriver or the like,
The fixed piece 26 is tightened and fixed. Then, when locked, the drive head 24 is separated from the drive shaft 28,
It cannot be removed even if the drive head 24 is rotated.
That is, even if the first lock 13 is opened by a criminal's hand, the second lock 15 cannot be removed.

When locking, the second lock 15 is locked and then the first lock 13 is locked. If the first lock 13 can be locked only after the second lock 15 is locked, forgetting to lock the second lock 15 can be prevented. Here, the first lock 13 can be locked by simply pushing the handle 12 without a key.

In the above embodiment, the slider 30,
The clutch mechanism including the slider head 31, the lock bolt 32, the spring 33, and the like has been described, but the invention is not limited to this, and another mechanical or electrical clutch mechanism may be used. 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.

[0021]

As described above in detail, according to the double lock according to the present invention, the handle case fixed to the door side and the handle case housed in the handle case and protruding outwardly are provided. A biased handle, a first lock attached to the handle with a fixing fitting, and a second lock fixed with a fixing mechanism at a position covered by the handle in the handle storage portion of the handle case. The fixing mechanism includes a drive head, a clutch mechanism, and a fixing piece, and the fixing piece is loosened via a clutch interrupted by the second lock, so that the second lock can be replaced. Effectively manage vending machines. That is, replenishment of various products sold by the vending machine and collection of cash can be performed independently, which is advantageous in management. Also,
Since the second lock is normally covered with the handle and cannot be seen, the safety can be increased even if it is destroyed.

[Brief description of drawings]

FIG. 1 is a plan view showing the overall configuration of a double lock according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing the overall structure of a double lock according to an embodiment of the present invention.

FIG. 3 is a cross-sectional view showing a lock fixing mechanism according to an embodiment of the present invention.

FIG. 4 is an assembly view showing a lock fixing mechanism according to an embodiment of the present invention.

FIG. 5 is a side view of a lock bolt used in the fixing mechanism.

FIG. 6 is a side view of a fixing portion used in the fixing mechanism.

FIG. 7 is a cross-sectional view showing an operating state of the double lock according to the embodiment of the present invention.

FIG. 8 is a cross-sectional view showing an operating state of the double lock according to the embodiment of the present invention.

[Explanation of symbols]

 10 Double Lock 11 Handle Case 11a Cylindrical Body 11d Handle Storage Section 12 Handle 12a Cylindrical Body 13 First Lock 15 Second Lock 16 Inner Case Bolt 17 Compression Spring 18 Lock Storage Hole 19 Lock Bar Member 20 Recess 21 Cam 22 Fixing Fixture 23 Fixing Mechanism 24 Drive Head 24a Notch 24b Rear End 25 Clutch Mechanism 26 Fixing Piece 26a Pin 26b Uneven Groove 27 Screw Tube 27a Hexagonal Hole 28 Drive Shaft 29 Up Nut 30 Slider 31 Slider Head 31a Contact Part 32 Lock Bolt 33 Spring

Claims (2)

[Claims] 1. A handle case fixed to a door side, a handle housed in the handle case and biased to project outward, and a first lock attached to the handle with a fixing metal fitting. And a second lock locked by a fixing mechanism at a position covered by the handle in the handle storage portion of the handle case. 2. The fixing mechanism includes a drive head, a clutch mechanism, and a fixing piece, and the fixing piece includes a drive head, a screw cylinder, a drive shaft, and an up nut via a clutch that is interrupted by the second lock. The double lock, wherein the second lock is replaceable by loosening the lock.