JP2506972Y2 - Lock for vending machine - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lock for a vending machine.

[0002]

2. Description of the Related Art Usually, a vending machine has a (1) shown in FIG.
And a lock for a vending machine as shown in (2) is attached. The lock 20 for a vending machine of (1) is a handle case 30 attached to a door of a vending machine, and a handle 40 housed in the handle case 30 and biased in a direction projecting outward from the handle case 30. And a cylinder lock 50 fitted into the tubular body 40a of the handle 40. The handle 40 is locked by the barb piece 60 so that the handle case 30 does not protrude outwardly. The metal fitting attached to the bolt 70a at the end drives the lock mechanism on the box side of the vending machine to lock the door. However, the bar bar 60 has a long groove 60.
Since the bar 80 is engaged with the cam 80 at a and the bar 60 is supported only by the spring 60b, the bar 60 can be subjected to a special shock or vibration.
There was a risk that the handle 40 would be unlocked and the handle 40 would jump out illegally.

Therefore, in order to solve such a problem, a lock 20 for a vending machine shown in (2) of the same figure has been developed. This is one in which the bar bar 60 is forcibly driven by the rotation of the cam 80, and when the bar bar 60 slides by the forcible drive of the cam 80, the lock is released and the handle 40
Is pushed out of the handle case 30 by the compression spring 40b, and the door can be opened. In this state, the key 90 is inserted into the cylinder lock 50, but the inner cylinder cannot be rotated so that it cannot be pulled out. This has the excellent advantage that the operator does not lock the door while leaving the key 90 in the box.

[0004]

[Problems to be solved by the invention] However, since a worker usually carries a key with his chain or string hanging from his waist and carries it around, and after releasing the lock, he or she refills the product or does other work with the key hanging. However, there was a problem that it was difficult to work unless the key was removed from the cylinder lock after the handle was unlocked. There is also a one-touch locking mechanism in the past, but this is because there is a space in the barb piece where the barb itself moves in the release direction at the engagement part between the cam and the barb, and the barb Since it is supported only by springs, there is a risk that the barbs will be unlocked due to special shocks and vibrations, and the handle will pop out illegally. The present invention has been made in view of the above problems, and an object thereof is to be able to pull out a key from a cylinder lock while the handle is unlocked and to be projected from the handle case, and to re-key the key. It is to lock the handle with one touch without using it, and to prevent the handle from being illegally popped out by a special shock or vibration.

[0005]

The gist of the lock for a vending machine according to claim 1 for achieving the above object is to provide a handle case fixed to the door side of the vending machine and to be housed in the handle case. A handle that is biased outwardly, a cam that rotates with the rotation of the inner cylinder of the cylinder lock mounted on the handle, and the rotation of the cam locks the handle with respect to the handle case. Is a lock for a vending machine provided with a barb for unlocking, the cam is connected to the connecting cylinder connected to the barb, and rotatably inserted in the connecting cylinder and to the inner cylinder of the cylinder lock. It is characterized in that the protrusion of the rotary cylinder is slidably inserted into the slide groove of the connecting cylinder, and the gist of the lock for the vending machine according to claim 2 is. ,
The vending machine lock according to claim 1, wherein a spring for restricting rotation of the connecting cylinder is mounted in the slide groove of the connecting cylinder, and the automatic vending machine according to claim 3. The gist of the lock for a machine is the lock for a vending machine according to claim 1, wherein a circular protrusion is inserted into the engaging groove of the bar bar and is connected to the connecting cylinder, and the circular protrusion is provided with a cutout surface. It is characterized by that.

[0006]

In the lock for a vending machine according to the first aspect of the present invention, the lock is unlocked by the rotation of the cam by the operation of the key, and the handle projects outward from the handle case. In this state, the barbs are not slidable, but since the rotating body of the cam can rotate, the key can be returned to its original position, and the handle can be pulled out from the cylinder lock, and the handle can be moved by a special shock or vibration. It is possible to prevent popping out. Also,
In the lock for the vending machine according to the second aspect, the rotation of the connecting cylinder in the unlocking direction is restricted by the spring, so that the connecting piece is prevented from rotating in the direction of pushing up the barb piece due to vibration or other external force. Further, the lock for the vending machine according to claim 3 is:
When the barb slides upward, the groove end of the engaging groove abuts the bottom end of the cutout surface of the cylindrical projection and the connecting cylinder forces the barb to rotate in the direction opposite to the direction in which the barb is pushed up. Never be.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. 1 is a sectional view of a lock for a vending machine according to the first aspect of the present invention, FIG. 2 is a sectional view of a handle case, FIG. 3 is a sectional view of a handle, and FIG. , (2) is a sectional view of the rotary cylinder, (3) is a sectional view of the connecting cylinder, and FIG. 5 is a perspective view of the cam.

A lock 1 for a vending machine has a handle 3 housed in a handle case 2 attached to a door, and a cylinder lock 4 is fitted in the handle 3. As shown in FIG. 2, the handle case 2 has a T-shape formed by a cylindrical body 2a and a mounting portion 2b orthogonal to the cylindrical body 2a, and a lock groove 2c is formed at the rear end of the cylindrical body 2a. A through hole 2d into which the bolt 8a of the inner case 8 is inserted is opened in the portion. In addition, the handle portion 2e is attached to the attachment portion 2b.
And is attached to the door 9a with the back side of the attachment portion 2b abutting.

The handle 3 is formed in a T shape by a cylindrical body 3a having a circular cross section which is loosely fitted in the cylindrical body 2a and a grasping portion 3b which is provided orthogonal to the cylindrical body 3a. A compression spring 3c elastically mounted on the handle case 2 urges the handle case 2 in a protruding direction. Further, the rear end portion of the cylindrical body 3a is slidably inserted into an inner case 8 in which a metal fitting 8b for driving a lock mechanism of the box body 9b is fixed to a bolt 8a by a nut 8c. The cylinder lock 4 is inserted.

The cylinder lock 4 is, as shown in FIG.
It has an outer cylinder 4a fixed to the handle 3 and an inner cylinder 4b rotatably fitted in the outer cylinder 4a, and the cam 5 is attached to the inner cylinder 4b.

As shown in FIGS. 4 and 5, the cam 5 is connected to the rotary cylinder 6 in which the bolt 4c of the cylinder lock 4 is inserted in the cylinder 6a, and the barb piece 10 via the connection protrusion 7a. And the connecting cylinder 7. The rotary cylinder 6 is provided with two flange pieces 6b on a cylinder body 6a, and a connecting cylinder 7 is rotatably inserted at the tip of the cylinder body 6a. The engaging projection 6c of the rotary cylinder 6 is inserted into the slide groove 7b of the connecting cylinder 7 to regulate the rotation angle within the range of 90 degrees.
Further, the front flange 6b of the rotary cylinder 6 is provided with a notch groove 6d, which is located in front of the spring pin 6e as shown in FIG. 6, and if there is a mistake in the parts, insert a screwdriver or the like from here. The spring pin 6e can be pulled out.

When the handle 3 is housed in the handle case 2 as shown in (2) of FIG. 7, the locking and unlocking of the vending machine lock 1 is performed by the barb piece 10. The handle 3 is locked by being locked in the lock groove 2c of the case 2. In this case, as shown in (1) of the figure, the inner cylinder 4b of the cylinder lock 4 is located in the locked state, and the key 11 can be inserted and rotated in the releasing direction, so that the key 11 can be pulled out. it can. In addition, the engaging projection 6 c of the rotary cylinder 6 is connected to the slide groove 7 of the connecting cylinder 7.
It is in contact with the end of b.

From this locked state, (1) in FIG.
As shown in FIG. 5, the cam 5 is operated by operating the key 11 in the releasing direction.
When the barb piece 10 is slid upward by the rotation of, the lock of the handle 3 is released and the compression spring 3c projects outward from the handle case 2 as shown in (2) of FIG. The handle 9 can be turned to open the door 9a. Further, in this state, the rotary cylinder 6 rotates as shown in (3) of FIG. 8, but since it can be returned to the original position by the slide groove 7b of the connecting cylinder 7, the key 11 can be pulled out.

Next, when closing the door 9a, when the handle 3 is pushed into the handle case 2 after closing the door 9a, the barb piece 10 is locked in the lock groove 2c by the spring 10a and the handle 3 is locked. It Therefore, the handle 3 can be locked with one touch without re-operating the key 11.

Next, an embodiment of a lock for a vending machine according to claim 2 will be described. This vending machine lock 1 has a T-shape formed by a cylindrical body 2a and a mounting portion 2b orthogonal to the cylindrical body 2a, and a lock groove 2c is formed at the rear end of the cylindrical body 2a and at the rear end thereof. Is a handle case 2 having a through hole 2d into which the bolt 8a of the inner case 8 is inserted, a cylindrical body 3a having a circular cross section that loosely fits into the cylindrical body 2a, and provided orthogonally to the cylindrical body 3a. The handle 3 is T-shaped by the grip portion 3b, and is urged in a direction protruding from the handle case 2 by a compression spring 3c elastically mounted inside the cylindrical body 3a.
And an inner case 8 into which the tubular body 3a of the handle 3 is slidably inserted, and a cylinder lock 4 inserted into the tubular body 3a of the handle 3, and an inner cylinder 4b of the cylinder lock 4 is provided. The configuration in which the cam 5 attached to the rotary cylinder 6 and the connecting cylinder 7 is the same as that of claim 1, and the connecting cylinder 7
The difference lies only in the structure in which the spring 7c is elastically mounted in the slide groove 7b.

As shown in FIG. 9, this is due to vibration and other unexpected external force when the handle 3 is locked.
The connection cylinder 7 is prevented from rotating farther in the direction of the arrow, that is, in the direction of pushing up the barbs 10 to prevent the handle 3 from being unlocked.

The lock for the vending machine according to claim 3 has substantially the same structure as the lock for the vending machine 1 according to claim 1 as in the case of claim 2, and the notch is formed in the connecting projection 7a of the connecting cylinder 7. Only the structure provided with the surface 7d is different. As shown in FIG. 10, the notch surface 7d is formed so as to incline to the upper right, so that when the barb piece 10 moves in the direction of the arrow due to the vibration or other unexpected external force, the barb piece is formed. Since the groove end of the engaging groove 10a of 10 abuts on the bottom end of the notch surface 7d, a rotational torque in the direction of the arrow is generated in the connecting cylinder 7 to prevent the bar bar 10 from rotating in the upward direction. The unlocking of the handle 3 is prevented.

[0018]

EFFECTS OF THE INVENTION A connecting cylinder in which a cam that rotates with the rotation of the inner cylinder of the cylinder lock is connected to the barb, and a rotation that is rotatably inserted in the connecting cylinder and connected to the inner cylinder of the cylinder lock. And the handle is projected outward from the handle case by locking the barb piece by slidably inserting the protrusion of the rotary cylinder into the slide groove of the connecting cylinder. In addition, since the inner cylinder of the cylinder lock can be rotated, the key can be pulled out from the cylinder lock, and even when the operator hangs the key from the waist with a chain or string, it does not hinder the refilling of products or other work. After pulling out the key, you can lock the door with one touch without having to bother with reusing the key by simply closing the door and pushing the handle.

Since the rotation of the connecting cylinder in the unlocking direction is restricted by the spring, the connecting piece is prevented from rotating in the direction of pushing up the barb piece due to vibration or other external force.

By providing the notch surface on the cylindrical projection, when the barb slides upward, the groove end of the engaging groove abuts the bottom end of the notch surface of the cylindrical projection, and the connecting cylinder pushes up the barb. Since the rotation in the opposite direction is forced, the barbs are not pushed up.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a lock for a vending machine.

FIG. 2 is a sectional view of a handle case.

FIG. 3 is a sectional view of a handle.

FIG. 4 (1) is a side view of the cylinder lock with a part thereof omitted, (2)
And (3) are sectional views of the cam.

FIG. 5 is a perspective view of a cam.

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

FIG. 7 shows a locked state of a lock for a vending machine, (1) is a front view of a cylinder lock into which a key is inserted,
(2) is a partially omitted sectional view of a lock for a vending machine, and (3) is a transverse sectional view of a cam.

FIG. 8 shows a lock release state of a vending machine lock, (1) is a front view of a cylinder lock in which a key is rotated to an unlocking position, and (2) is a lock of a vending machine lock. A partially omitted cross-sectional view of the unlocked state, and (3) is a cross-sectional view of the cam in the unlocked state.

FIG. 9 is a sectional view of a cam in which a spring is mounted.

FIG. 10 is a cross-sectional view showing a connected state of the connection protrusion and the barb piece.

FIG. 11 is a sectional view of a conventional lock for a vending machine with a locked handle, and FIG. 11 is a sectional view of a lock for a conventional vending machine with a protruding handle.

[Explanation of symbols]

 1 Lock for vending machine 2 Handle case 3 Handle 4 Cylinder lock 5 Cam 6 Rotating cylinder 7 Connecting cylinder 8 Inner case 9a Door 9b Box 10 Lock bar 11 Key

Claims (3)

(57) [Scope of utility model registration request] 1. A handle case fixed to a door side of a vending machine, a handle housed in the handle case and biased outwardly, and a cylinder lock mounted on the handle. In a vending machine lock having a cam that rotates with the rotation of a cylinder and a barb that locks or unlocks a handle with respect to the handle case by the rotation of the cam, the cam is connected to the barb. Connected cylinder and a rotary cylinder that is rotatably inserted in the connection cylinder and connected to the inner cylinder of the cylinder lock, and the projection of the rotary cylinder is slidably inserted into the slide groove of the connection cylinder. A lock for a vending machine, which is characterized by that. 2. The lock for a vending machine according to claim 1, wherein a spring that restricts rotation of the connecting cylinder is mounted in a slide groove of the connecting cylinder. 3. The lock for a vending machine according to claim 1, wherein the connecting tube has a circular projection inserted into an engaging groove of a bar bar to be connected, and the circular projection is provided with a cutout surface. A unique lock for a vending machine.