KR0161795B1 - Lock for automatic vending machine - Google Patents

Abstract

The present invention provides a lock for a vending machine with increased operability and breaking strength.

It is housed in the inner case bolt and inner case bolt rotatably embedded in the hand case and the handle case fixed to the door side, and is mounted to the body of the handle and the spring-loaded handle so as to protrude outwards. A lock, a cam that rotates in the cylinder portion in accordance with the rotation of the inner cylinder of the lock, and a latch member that protrudes and retracts from the outer circumference of the cylinder portion by the rotation of the cam, and the latch member that protrudes from the cylinder portion is a handle case. Since the engagement with both the part and the part of the inner case bolt, the strength of the lock can be increased and the handle operation can be made light.

Description

Vending locks

1 is a partially cutaway front view of a lock for a vending machine according to one embodiment of the present invention.

2 is a longitudinal cross-sectional view of a lock for a vending machine in one embodiment of the present invention.

3 is an assembly diagram of a vending machine lock according to an embodiment of the present invention.

4 is a cross-sectional view of the lock for this vending machine.

Fig. 5 is a sectional view showing the engaged state of the latching member of the lock for the vending machine.

6 is a rear view of the lock for the vending machine.

* Explanation of symbols for main parts of the drawings

10: lock for vending machine 11: handle case

11a: cylinder 11b: mounting portion

11c: Through hole 11d: Handle storing part

12: inner case bolt 12d: bolt

13 handle 13a: grip

14: cylinder part 15: fixed bracket

15a: fixed leg 16: lock

17: cam 17a: operating part

18: cladding member 18a: step portion

18b: narrow part 19: main part

20: compression spring 21: locksmith

23,23: mounting hole 24: beam

25: Vis 26: Home

27: engagement hole 28: pin

29: through pin 30: long hole

The present invention relates to an improvement of a lock for a vending machine used in a vending machine or the like.

In general, locks for vending machines used in conventional vending machines and the like have a latching member engaged only in the handle case, but not in the inner case bolt.

In addition, when the lock is opened, the tip of the protruding cladding member protrudes while contacting the inner circumference of the handle case, so that the handle operation tends to be heavy. In addition, the fixing bracket for fixing the cylinder lock to the handle was provided only at one place.

By the way, in the lock of the conventional vending machine described above, the latch member slides while contacting the inner circumference of the handle case, causing the handle operation to become heavy when the amount of protrusion of the handle is not sufficient. In addition, since the engagement between the cladding member and the handle case is shallow, the engagement may be released due to vibration or the like. In addition, one conventional fastener can be easily accessed when the fixed piece of the fastener is to be broken by a drill or a burner. Therefore, there existed a deficiency of drill destruction or defenselessness. In addition, there was not enough countermeasures against pull-out of locks.

DISCLOSURE OF THE INVENTION An object of the present invention has been made in view of the above-mentioned conventional drawbacks, and provides a lock for a vending machine that can increase the breaking strength of the lock and smoothly operate the handle.

A lock for a vending machine according to the present invention includes a handle case fixed to a door side, an inner case bolt mounted on the handle case so as to be rotatable, a handle stored in the inner case bolt and spring-loaded to protrude outward. And a lock attached to the barrel portion of the handle by a fixing bracket, a cam rotating in the cylinder portion in accordance with the rotation of the inner cylinder of the lock, and a bolt member protruding and evacuating from the outer periphery of the cylinder portion by the rotation of the cam. The cladding member protruding from the cylindrical portion engages both a part of the handle case and a part of the inner case bolt.

The cam is an ellipse cam. In addition, the said fastener is arrange | positioned by the left-right symmetry of the cylindrical part of a handle.

As described above, according to the lock for the vending machine according to the present invention, the strength of the lock that the latch member engages with both a part of the handle case and a part of the inner case bolt can be increased. In addition, since the tip of the latch member does not contact the inner circumference of the handle kit when the lock is opened, the handle can be smoothly operated.

Next, an embodiment of the present invention will be described according to the accompanying drawings. 1 is a partially cutaway front view of an automatic vending machine lock according to an embodiment of the present invention, and FIG. 2 is a longitudinal sectional view of an automatic vending machine lock according to an embodiment of the present invention, and FIG. 3 is an assembly view thereof. Here, the vending machine lock 10 includes a handle case 11 fixed to the door side, an inner case bolt 12 rotatably embedded in the handle case 11, and the inner case bolt 12. The handle 13, which is housed inside the spring and is spring-loaded so as to protrude outward, the lock 16 mounted to the tubular portion 14 of the handle 13 as a fixing bracket 15, and the lock 16 The cam 17 which rotates in a cylinder part according to the rotation of the inner cylinder of the (), and the latch member 18 etc. which protrude and retract from the outer periphery of a cylinder part by the rotation of this cam 17 are provided.

Here, as shown in FIG. 2, FIG. 3, etc., the handle case 11 is formed in substantially T shape by the cylindrical body 11a and the mounting part 11b orthogonal to this cylindrical body 11a. Moreover, around the inner end of the cylindrical body 11a, the recessed part 19 by which the latch member 18 engages is formed, and the bolt 12d of the rear end of the inner case bolt 12 is inserted in the rear end part. The through hole 11c is drilled. On the other hand, the front face of the mounting portion 11b is provided with a handle storing portion 11d which is a recessed portion, and the handle 13 can be completely stored, and the back side of the mounting portion 11b is fixed with a bolt or the like by contacting the door with the door. .

The handle 13 is formed in a substantially T-shape by a cylindrical portion 14 inserted into the cylindrical body 11a and a gripping portion 13a disposed to be orthogonal to the cylindrical portion 14. In addition, the compression spring 20 disposed in the cylindrical portion of the inner case bolt 12 is biased in a direction protruding from the inner case bolt 12. In addition, the lock 16 is fixed to the lock storage hole 21 at the front of the handle 13 by a pair of fixing brackets 15 and 15.

The fixing bracket 15 is connected to the beam 24 extending parallel to the insertion direction of the lock 16 in the mounting holes 23 and 23 bored on both sides of the cylindrical portion 14 of the handle 13 ( 25). The fixing bracket 15 has a substantially c-shaped cross section, and a groove for preventing slipping is formed on the lower surface of the fixing leg 15a. In addition, the fixing tool 15 may be made of stainless steel or the like.

The head of the cam 17 is inserted into the inner cylinder not shown in the rotatably arranged view of the lock 16 fixed to the handle 13, and the lock 16 is opened to rotate the inner cylinder and the cam 17. can do. Here, the cam 17 is made of a material that is dissolved at high heat, such as synthetic resin. Moreover, as shown in FIG. 3 etc., the cladding member 18 is arrange | positioned in the vicinity of the rear end of the cylinder part 14 of the handle 13, and the cam 17 rotates, and from the outer periphery of the cylinder part 14 is carried out. Protrude and retract; In the latch member 18, step portions 18a are formed on both sides of the tip, and the narrow width portion 18b in the center slides in the groove 26 formed on the side surface of the inner case bolt 12. It is possible.

An engagement hole 27 is formed inside the groove 26 formed in the inner case bolt 12, and the wide portion of the bolt member 18 protruding when the lock is locked engages. Moreover, the narrow part 18b of the center engages with the recessed part 19 of the handle case 11 at that time. When the cladding member 18 retreats, the handle 13 protrudes and becomes rotatable by the force of the compression spring 20. At this time, when the grip 13a of the handle 13 is grasped and rotated, the bolt 12d rotates together with the inner case bolt 12 so that the door can be opened. In addition, when the cladding member 18 is retracted by the operation of the cam 17, the step portion 18a of the cladding member 18 engages the groove 26, so that only the central widthwise portion 18b is the groove 26. Since the inside slides, the step 18a is restricted from protruding in the circumferential direction. Therefore, the front end of the cladding member 18 can operate the handle 13 without contacting the inner circumference of the cylindrical body 11a, and can rotate lightly.

Next, operation | movement of the vending machine lock 10 comprised as mentioned above is demonstrated. First, when the lock for a vending machine is opened, the lock 16 is opened with a key, and the inner cylinder which is not shown in figure is rotated. When the inner cylinder rotates, the cam 17 engaged with this rotates. When the cam 17 rotates, the elliptical actuating portion 17a rotates, and the latch member 18 retreats. When the cladding member 18 is retracted, the tip of the cladding member exits from the recessed portion 19 formed around the cylindrical body 11a of the handle case 11 and from the engaging hole 27 of the inner case bolt 12. Also comes out. Then, the handle 13 protrudes forward by the force of the compression spring 20. At this time, the front end of the cladding member 18 is advanced along the groove 26 of the inner case bolt 12, and the pin 28 installed from the tubular portion 14 abuts against the end of the long hole 30. Stop. As a result, the amount of protrusion of the handle 13 is determined.

When the handle 13 protrudes from the handle storing portion 11d, the handle 13 and the inner case bolt 12 are rotated integrally and are illustrated by bolts 12d fixed to the rear end of the inner case bolt 12. By operating the locking mechanism not present, the door of the vending machine can be opened.

When the door of the vending machine is locked by the lock, the key is removed from the lock 16, the handle 13 is returned to the predetermined position, and then pushed into the handle storing portion 11d of the handle case 11. Then, after the cladding member 18 is retracted along the groove 26, it protrudes outward from the engagement hole 27 of the inner case bolt 12, and engages with the recessed portion 19 of the handle case 11. The lock is completed (see FIGS. 4 and 5).

Thus, since the latch member 18 engages with both the recessed part 19 of the handle case 11 and the engagement hole 27 of the inner case bolt 12, the effect of locking a lock can be reliably obtained.

On the other hand, in the present invention, since the fixing bracket 15 is disposed symmetrically on both sides of the tubular portion 14, it is safe against the breakage of the lock. Moreover, since the cam 17 was comprised from the synthetic resin which melt | dissolves in high heat, when it tries to destroy with a burner etc. from the exterior, the cam 17 will melt | dissolve and a door cannot be opened. Therefore, safety is improved against thermal destruction by a burner or the like.

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

As described in detail above, according to the lock for a vending machine according to the present invention, a handle case fixed to a door side, an inner case bolt rotatably embedded in the handle case, and housed in the inner case bolt and further outward A handle that is spring-loaded to protrude from the body, a lock mounted to the cylinder portion of the handle with a fixing bracket, a cam that rotates in the cylinder portion in accordance with the rotation of the inner cylinder of the lock, and a cam that protrudes from the outer periphery of the cylinder portion by rotation of the cam. And a retracting cladding member, and the cladding member protruding from the tubular portion engages both a part of the handle case and a part of the inner case bolt, so that the cladding member is engaged over two members. Can increase the strength.

In addition, since the two fasteners are arranged in the symmetrical side of the cylindrical portion of the handle, the safety against the breakdown increases.

Claims (3)

A handle case fixed to the door side, an inner case bolt rotatably embedded in the handle case, a handle stored in the inner case bolt and spring-loaded to protrude outward, and a body portion of the handle A lock mounted with a fixed bracket, a cam that rotates in the cylinder portion in accordance with the rotation of the inner cylinder of the lock, and a latch member that protrudes and retracts from the outer circumference of the cylinder portion by the rotation of the cam. The lock member is a lock for a vending machine, characterized in that it is engaged with both a part of the handle case and a part of the inner case bolt. 2. The lock of a vending machine according to claim 1, wherein said cam is an ellipse cam. 2. The lock of a vending machine according to claim 1, wherein the fixing bracket is arranged on the left and right symmetry of the cylindrical portion of the handle.