JPH0368193B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a door locking device for opening and closing the front opening of a main body of a vending machine or the like.

A typical vending machine door lock device has a lock pin that can be retracted from above and below the free end of the door, and a key shaft that can be rotated by a key in the middle of the front of the free end of the door. In many cases, the rotating plate fixed to the inner end of the key shaft is connected to the upper and lower lock pins by a connecting rod.

In the conventional locking device as described above, the rotating plate at the inner end of the key shaft provided on the door and the lock pin are connected by a long link, so when assembling the vending machine, the rotating plate at the inner end of the key shaft is Since the moving plate and the lock pin must be connected by a continuous rod and shipped as is, the key shaft cannot be easily replaced by the user, which is extremely inconvenient.

The object of the present invention is to solve the problems of the conventional lock devices as described above and to provide a lock device whose key shaft can be easily removed and replaced.

That is, the present invention provides a vertically long mounting hole in the front surface of the free end side of the door that opens and closes the opening of the main body of a vending machine, etc., and the upper end of the main handle that fits into this mounting hole is horizontally inserted into the mounting hole. At the top of the mounting frame, which is rotatably mounted on a shaft and fixed to the inside of the door of the main handle mounting part, there is a front part of a lock piece having a hook part that engages with a locking part provided on the main body from the lower inside. is rotatably mounted on a horizontal shaft, and a secondary handle is mounted inside the upper part of the main handle so as to be rotatable within a certain range on the horizontal shaft for mounting the main handle. A spring is provided that biases the secondary handle so that the upper end of the secondary handle and the rear part of the lock piece are connected by a link, and when the main handle is turned forward, the lock piece is released from the locking part and the main handle is rotated downward. When the main handle is moved and inserted into the mounting hole, the lock piece engages with the locking part, and is further provided with a spring that biases the lock piece in the direction of disengaging from the locking part. In some cases, an engaging member that can be raised and lowered is provided to engage the inside of the upward locking piece at the lower end of the mounting hole to prevent the main handle from rotating outward, and a spring is provided that urges the engaging member downward. At the lower part of the mounting hole, the inner end of a key shaft is attached to the front surface of the door so that it can be rotated by a key. A cam is provided to remove the lower end from the locking piece at the lower end of the mounting hole.

The details of the present invention will be explained below based on an embodiment shown in the accompanying drawings.

In Figures 1 to 6, 1 is a main body, 2 is an opening, and 3 is a door that opens and closes this opening 2. The figure shows the free end of this door 3, and the upper and lower ends of the other end (not shown) are It is rotatably attached to the main body by a shaft.

A vertically long mounting hole 4 is provided in the front surface of the free end of the door 3, and the upper end of a vertically long main handle 5 that fits into the hole 4 is rotatably mounted on a horizontal shaft 6 within the hole 4. Reference numeral 7 denotes a mounting frame fixed to the inside of the door 3, and a locking piece 8 is rotatably mounted on the upper part of the mounting frame by means of a horizontal shaft 9.

10 is a support frame fixed to the main body 1, and this frame 10
A horizontal shaft is fixed near the front of the upper part, and a locking part 11 consisting of a tube rotatably fitted on this horizontal shaft is provided.
The hook portion 12 at the top of the lock piece 8 is connected to this locking portion 1.
1.

A secondary handle 13 is provided inside the upper part of the main handle 5.
The secondary handle 13 is rotatably supported by the horizontal shaft 6, and the secondary handle 13 is attached to the main handle 5 by the bent upper and lower contact portions 14 and 15 on the lower front side of the secondary handle 13 contacting the main handle 5. A spring 16 is provided so that the sub handle 13 can be rotated within a certain range and acts to bring the contact portion 14 at the upper part of the sub handle 13 into contact with the main handle 5.

In addition, the upper end of the sub handle 13 and the lock piece 8
Both ends of the link 17 are rotatably connected to the rear part of the link 17 by shafts 18 and 19, and a lock piece 8 is attached to the horizontal shaft 9.
A spring 20 is attached that acts to push down the shaft 18 connecting the link 17.

Reference numeral 21 in FIG. 1 denotes an engaging member attached to the lower end of the main handle 5 so as to be able to rise and lower.
3 and is pressed down by a spring 24. At the lower end of this engaging member 21, as shown in FIG. , and a downward rotational force is applied by the spring 28. The rear side of the lower end of the engaging member 21 has a sloped surface, and when the main handle 5 is pushed into the mounting hole 4, this slope is pushed up by the locking piece 23, and the notch 22 is automatically engaged with the locking piece 23. It is made to match.

Reference numeral 29 denotes a mounting tube fixed to the door 3 below the mounting hole 4. A key shaft 30 that rotates with a key is attached to this tube 29, and a cam 31 is fixed to the inner end of the key shaft 30. The engaging member 21 is pushed up via the piece 25.

Reference numeral 32 denotes a roller rotatably attached to the front of the lower part of the support frame 10, and when the door 3 is in the closed position, the door stopper frame 3 provided on the rear side of the mounting frame 7
3 to support the door 3.

The locking device of the present invention has the above-described construction, and FIG. 1 shows the locking state. In this case, the main handle 5 is completely fitted into the attachment hole 4, and the notch 22 of the engagement member 21 and the locking piece 23 at the lower end of the attachment hole 4 are engaged.

Further, since the hook portion 12 of the lock piece 8 is engaged with the locking portion 11, the door 3 cannot be opened.

Now, when the key is inserted into the key hole of the key shaft 30 and the key shaft 30 is rotated, the cam 31 pushes up the swinging piece 25 as shown in FIG. Therefore, the upward piece 26 of the swinging piece 25 pushes up the engagement member 21 against the spring 24, so that the locking piece 23 is disengaged from the engagement notch 22.

Since a forward force is always applied to the main handle 5 by the spring 16, the main handle 5 jumps forward as shown in FIG. 3 at the same time as the notch 22 is released from the locking piece 23 as described above.

However, the hook portion 12 of the lock piece 8 is still attached to the locking portion 1.
1, the secondary handle 13 and link 17 remain in the locked position. Therefore, the main handle 5 is attached to the contact portion 1 of the sub handle 13 as shown in FIG.
It stopped at 4.

When the main handle 5 is manually rotated from the above state until it becomes horizontal as shown in Fig. 4, the sub handle 13 also rotates and the link 17 is pulled down, so the lock piece 8 also rotates backward and downward. The hook part 12 is the locking part 1
Since it is removed from 1, door 3 can be opened.

When closing and locking door 3, do the opposite of the above.
When the main handle 5 in the position shown in the figure is rotated downward, the sub handle 13 is also rotated, and the link 17 turns the locking piece 8 upward, and the hook part 12 is rotated as shown in FIG.
engages with the locking portion 11.

Next, when the main handle 5 is pushed into the mounting hole 4, the engagement notch 22 of the engagement member 21 automatically engages with the locking piece 23.

In the locking device of the present invention, the main handle completely fits into the mounting hole of the door in the locked state as described above, so the main handle cannot be pulled out in this state. However, in the case of this invention,
When the key shaft is rotated by the key, the main handle pops out from within the mounting hole, making the next unlocking operation easier. If there is no such pop-out movement, make the lower end of the mounting hole longer than the lower end of the main handle, or form a recess at the bottom of the mounting hole, and when releasing the lock, hook the lower end of the main handle with your finger and pull it out. It is extremely troublesome because you have to do it, and
In the locked state, there is a risk that the main handle may be forcibly pulled out.

Further, in this invention, since the cam at the inner end of the key shaft rotated by the key is only in contact with the swinging piece, the cam can be easily replaced with another key shaft as long as the same cam is used. The key can also be locked by pressing down on the main handle after the key is previously engaged with the handle in the up position (unlocked) and the key is removed. Therefore, when it takes time to repair a machine, the person in charge of the key may leave the repair person behind and take away the key.
This has the effect of allowing repair personnel left behind after repairs are completed to lock the machine and return home on their own.

In the embodiment, the cam at the rear end of the key shaft moves the rocking piece, and this rocking piece pushes up the engaging member at the lower end of the main handle, but it is also possible to use a structure in which the cam moves the engaging member directly. good.

[Brief explanation of drawings]

FIG. 1 is a longitudinal side view showing the locking state of the locking device of the present invention, FIG. 2 is a longitudinal rear view of the same as above, FIG. 3 is a longitudinal side view showing the first stage of the unlocking operation, and FIG. 4 is the locking device. Vertical side view in released state, 5th
The figure is a cross-sectional plan view, and FIG. 6 is an exploded perspective view. 1...Body, 2...Opening, 3...Door, 4...
Mounting hole, 5...Main handle, 6, 9...Horizontal shaft, 7
...Mounting frame, 8...Lock piece, 11...Locking part,
12...Hook part, 13...Secondary handle, 16,2
0, 24... Spring, 21... Engaging member, 23...
Locking piece, 30...key shaft, 31...cam.

Claims (1)

[Claims] 1 A vertical mounting hole is provided on the front surface of the free end side of the door that opens and closes the opening of the main body of a vending machine, etc., and the upper end of the vertically long main handle that fits into this mounting hole is aligned with the horizontal axis within the mounting hole. At the top of the mounting frame fixed inside the main handle mounting part, there is a front part of a lock piece having a hook part that engages with the locking part provided on the main body from the lower inside. The secondary handle is attached rotatably by a shaft, and is attached to the inside of the upper part of the main handle so that it can be rotated within a certain range by the horizontal shaft for attaching the main handle. A spring is provided to bias the sub-handle so that the upper end of the sub-handle and the rear part of the lock piece are connected by a link, and when the main handle is rotated forward, the lock piece is released from the locking part and the main handle is rotated downward. When the main handle is moved, the lock piece engages with the locking part, and a spring is provided at the attachment part of the lock piece to urge the lock piece in the direction of disengaging from the locking part.
An engaging member that can be raised and lowered is provided to prevent the main handle from rotating outward by engaging with the inside of the upward locking piece provided at the lower end of the mounting hole when the main handle is lowered, and this engaging member is urged downward. At the bottom of the mounting hole, a spring is provided at the inner end of a key shaft attached to the front surface of the door so that it can be rotated by a key, and when the key shaft is turned at a predetermined angle, the engaging member is pushed up. A door locking device equipped with a cam.