JPH05263559A - Lock for vending machine - Google Patents

Abstract

PURPOSE:To improve durability and weatherproofness and to improve resistivity against breakdown by a method wherein a handle is turned on occasion of releasing the locking, and locking of a door is made at the upper and the lower parts and at the front side and the inner part of a box main body by making engaging pieces engaged with and disengaged from an engagement member. CONSTITUTION:A cam member 14 is mounted to the tip of a bolt of a handle, and the handle is placed on unlocking position and is projected. Then, a fastening plate 11, supported so that it can move up and down, is lifted up by operation of an operating pin 14b as the cam member 14 is turned. Engaging pieces 17 on the tip of an extended nut 16 are turned by turning of the extended nut, and thereby engagement with an engagement member 15 is released and a door 9 is made openable. Then, the hundle is turned at a right angle and the door 9 is closed, putting it back to the perpendicular state, and the cam member 14 is turned, and thereby the fastening plate 11 is lowered to be engaged with a notch 10a of a locking arm 10. The engaging pieces 17 are also turned approximately at a right angle and are engaged with a slit 15a of the engagement member 15. Thereby, double locking becomes available as the door 9 is locked at its upper and lower parts with the locking arms 10 and the fastening plate 11 while being locked at its inner part at the center with the engagement member 15 and the engaging pieces 17.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to improvements in locks used in vending machines.

[0002]

2. Description of the Related Art In recent years, vending machines have become extremely popular,
While the number of large luxury models that can handle transactions even with high-value banknotes has increased, it has become more convenient for users,
The number of crimes aimed at large amounts of cash stored inside is increasing. This is because the door is often opened by a breaking tool such as a crowbar, so that a lock having a structure shown in FIG. 8 has been developed as a lock for a vending machine which is resistant to breaking. This vending machine lock A slides the fastening plate 2 in the vertical direction by rotating the cylinder lock 1 provided on the door m, and engages with the locking arms 4 and 4 provided on the upper and lower parts of the box body 3 side. And the door m is locked to the box body 3 at a pair of upper and lower positions.

[0003]

However, in the lock for the vending machine described above, the door m is locked at the upper and lower two points, but the fastening plate is simply engaged with the locking arm. Since it does not have a strong tightening force, a breaking tool such as a burl is easily inserted and the locking portion is broken.

An object of the present invention is to provide a lock for a vending machine, which has been made in view of the above-mentioned conventional drawbacks and which is resistant to vandalism.

[0005]

[Means for Solving the Problems] The structure as means of the present invention for achieving the above object is to provide a locking arm provided on the box body side of an automatic vending machine and a locking arm provided on the door side. Equipped with a fastening plate to be engaged, a handle case fixed to the door side, a handle biased in a direction projecting outward from the handle case, a cam member fixed to the tip of the handle, and a handle With a cylinder lock, the handle locks and unlocks the handle case by key operation of the cylinder lock,
In a vending machine lock that engages and disengages the fastening plate with the cam member, an engaging member provided on the box body side of the vending machine, and an extension nut extended to the tip of the handle. And an engagement piece attached to the tip of the extension nut, and the engagement piece fixed to the tip of the extension nut and the engagement member by rotating a handle protruding from the handle case when unlocking. If they do, they will leave. The extension nut is detachably fixed to the tip of the handle. Further, the extension nut may be one in which the rotational position is controlled by a collar member fitted to the tip of the handle and a positioning member that engages with the collar member and the extension nut.

[0006]

According to the present invention, in addition to locking the locking arm and the fastening plate at two places, the strength against breakage is improved by the strong engagement between the extension nut and the engaging piece at the central portion.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. Figure 1 shows the door 9 of the vending machine,
That is, FIG. 2 is a perspective view showing a state in which the lock of the vending machine lock A according to the embodiment of the present invention is unlocked, and FIG. 2 is an assembly view of essential parts of the vending machine lock according to the embodiment of the present invention.

The lock A for a vending machine according to the present invention has a locking arm 10 provided on the box body side of the vending machine, and the door 9 is engaged with and disengageable from the locking arm 10.
It is provided with a fastening plate 11 which is arranged on the opposite side.

On the side of the door 9, a handle case 12 is fixed and is biased in a direction projecting outward from the handle case 12, and a key of a cylinder lock 22 mounted on the handle 13. The handle 13 locks and unlocks the handle case 12 by operation.

The cam member 1 is attached to the tip of the handle 13.
4 is attached to the fastening plate 1 by the cam member 14.
1 to slide the rocking arm 1 up and down
It engages and disengages with 0.

An engaging member 15 provided on the box body side 8 of the vending machine, an extension nut 16 extending on the bolt portion 13a of the handle 13, and an engagement piece 17 attached to the tip of the extension nut. And handle case 12 when unlocked
The engaging piece 17 and the engaging member 15 fixed to the tip of the extension nut 16 by rotating the handle 13 protruding from the
The engagement with is released.

Here, the locking arm 10 is the box body 8
The door opening / closing portion is provided with two upper and lower steps, and has a notch 10a for engagement. The engaging member 15 is the box body 8
It is located at a predetermined distance from the door opening and has an elongated hole 15a for engagement. FIG. 2 is an exploded perspective view of an essential part of a lock for a vending machine, showing a bolt portion 13 of the handle 13.
A small-diameter prismatic portion 13b is formed along the axis at the tip of a, and a screw is engraved on the prismatic portion 13b. The cam member 14 is attached to the prism 13b. The cam member 14 is formed with a rectangular hole 14a to be inserted into the prism 13b, and an operating pin 14b is formed so as to project. Next to the cam member 14, a rectangular collar 18 is attached.

Next to the collar 18, the extension nut 16 is screwed with a female screw. The extension nut 16 has a hexagonal outer shape, and female screws are formed at both ends thereof. An engagement piece 17 is fixed to a tip of the extension nut 16 with a bolt 20 via a washer 19. Here, a dodecagonal wrench groove 17a is formed on the back surface of the engagement piece 17 as shown in FIG. 4, and the hexagonal surface of the extension nut 16 and the one of the engagement piece 17 are formed.
The attachment angle of the engagement piece is determined by the double wrench groove 17a. Further, the positioning member 21 is fitted to the joint portion of the extension nut 16 with the bolt portion 13a.

The positioning member 21 has a quadrangular groove 21a fitted to the collar 18 at one end and a hexagonal groove 21b fitted to the extended nut 16 at the other end. A spring member 21c for preventing loosening is attached by rivet stopping means. Square groove 2 of this positioning member 21
By fitting 1a to the collar 18 and fitting the hexagonal groove 21b to the outer periphery of the extension nut 16, the bolt portion 13a is attached.
The angle of the extension nut 16 is determined. Therefore, the angle of the extension nut 16 can be determined more reliably than when the extension nut 16 is simply screwed into the prism 13b.

The spring member 21c has a substantially U-shaped cross section and has a hole 21e for rivet fixing formed in the center thereof. The U-shaped both end portions 21f are formed in a substantially circular cross section and perform a retaining action when fitted to a hexagon bolt.
FIG. 3 is a side view in which both ends of the extension nut 16 are cut away, and the extension nut 16 has a hexagonal outer circumference, and female screws 16a and 16b are engraved at both ends. FIG. 5 is a front view showing the collar 18, and the inner dimension a of the collar 18 is shown.
Can be fitted to the prism 13b, and the outer dimension b can be fitted to the square groove 21a of the positioning member 21. The engaging piece 17 has a substantially hat-shaped cross section, and is formed so that it can be engaged with and disengaged from the elongated hole 15a of the engaging member 15.

FIG. 6 is a side view of the lock showing a state in which the handle 13 is projected from the handle case 12, and FIG.
[Fig. 6] is a front view of the lock. Here, the handle 13 is provided with a cylinder lock 22, and when the handle 13 is in the unlocked position, the handle 13 is held together with the cylinder 13c.
It is projected from 2 by a compression spring (not shown) as shown by a chain double-dashed line. When the handle 13 projects from the case, the cam member 14, the extension nut 16, and the engaging piece 17 can be rotated by operating the handle 13.

When the cam member 14 rotates, the operating pin 14b of the fastening plate 11 supported by the door 9 so as to be vertically movable is raised. Further, as the extension nut 16 rotates, the engagement piece 17 fixed to the tip rotates, and the engagement member 1
The engagement with 5 is released. If the handle 13 is pulled in this state, the door 9 of the vending machine lock can be freely opened.

Next, with the handle turned 90 degrees, the door 9
Then, the cylinder lock 22 is locked when the handle is returned to the vertical position and pushed into the handle case 12. The cam member 14 is rotated by returning the handle vertically, and the fastening plate 11 is lowered to engage with the notch 10a of the locking arm 10 to be locked. Further, the engaging piece 17 at the tip of the extension nut 16 is also rotated by 90 degrees to be engaged with the elongated hole 15a of the engaging member 15 and locked. In this manner, the locking arm 10 and the fastening plate 11 are locked above and below the door, and at the same time, the engaging member 15 and the engaging piece 17 are doubly locked at the back of the central portion, so that safe locking can be achieved. it can.

[0019]

As described in detail above, the locking arm provided on the box body side of the vending machine, the fastening plate provided on the door side for engaging with the locking arm, and fixed to the door side A handle case urged in a direction projecting outward from the handle case, a cam member fixed to the tip of the handle, and a cylinder lock mounted on the handle. A lock provided on the box body side of the vending machine at the lock of the vending machine in which the handle locks and unlocks the handle case by a key operation and the cam member engages and disengages the fastening plate. A handle, which includes a mating member, an extension nut extending from the tip of the handle, and an engagement piece attached to the tip of the extension nut, and which extends from the handle case when unlocked. By engaging and disengaging the engaging piece fixed to the tip of the extension nut and the engaging member, the door can be locked by the upper and lower parts and the central part of the box body before and behind. It is highly resistant to vandalism and has excellent durability and weather resistance. Also, the extension nut can be attached as it is to the lock of the conventional vending machine,
The handle case and the handle can be used as they are, which is very advantageous in terms of inventory management.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of a vending machine showing a lock for a vending machine according to an embodiment of the present invention with a door opened.

FIG. 2 is an exploded perspective view of essential parts of a lock for a vending machine according to an embodiment of the present invention.

FIG. 3 is a side view showing a notch of a part of an extension nut used in the lock of the vending machine of the present invention.

FIG. 4 is a rear view showing an engagement piece used in the lock of the vending machine of the present invention.

FIG. 5 is a front view showing a collar member used in the lock of the vending machine of the present invention.

FIG. 6 is a side view of essential parts showing an assembled state of the lock for the vending machine according to the embodiment of the present invention.

FIG. 7 is a front view showing an assembled state of a lock for a vending machine which is an embodiment of the present invention.

FIG. 8 is a schematic perspective view showing an example of a conventional lock for a vending machine.

[Explanation of symbols]

 A Lock for Vending Machine 8 Box Main Body 9 Door 10 Locking Arm 10a Notch 11 Tightening Plate 12 Handle Case 13 Handle 13a Bolt 13b Prism 13c Cylindrical 14 Cam Member 14a Square Hole 14b Operating Pin 15 Engaging Member 15a Long Hole 16 Extension nut 16a Female screw 16b Female screw 17 Engaging piece 17a 12 Square wrench groove 18 Collar 19 Washer 20 Bolt 21 Positioning member 21a Square groove 21b Hexagonal groove 21c Spring member 21d hole 21e hole 21f End part 22 Cylinder lock

Claims (3)

[Claims] 1. A locking arm provided on the box body side of a vending machine, a fastening plate provided on the door side for engaging with the locking arm, a handle case fixed to the door side, and the handle case. The handle has a handle biased in a direction projecting outward from the handle, a cam member fixed to the tip of the handle, and a cylinder lock mounted on the handle, and the handle is turned into a handle case by a key operation of the cylinder lock. In the lock for the vending machine which locks and unlocks the fastening plate and engages and disengages the fastening plate by the cam member, the engaging member provided on the box body side of the vending machine and the tip of the handle. Provided with an extension nut and an engaging piece attached to the tip of the extension nut, and the extension nut is rotated by rotating a handle protruding from the handle case when the lock is released. A lock for a vending machine, characterized in that the engagement piece fixed to the tip end of the and the engagement member are disengaged from each other. 2. The lock for a vending machine according to claim 1, wherein the extension nut is detachably fixed to a tip portion of a handle. 3. The rotating position of the extension nut is controlled by a collar member fitted to a tip portion of a handle and a positioning member engaging with the collar member and the extension nut. The lock for a vending machine according to item 1 or 2.