JPS5842344B2 - Safe deposit box lock with auxiliary “bar” - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a safe deposit box 1 equipped with a main customer lock and an auxiliary customer lock that can be locked, locked, and unlocked using - customer keys.

Conventional safe deposit boxes installed in banks, etc. use double lock type safe deposit box locks that are divided into a customer lock and a bank lock, and this means that if both locks are not unlocked, the safe deposit box cannot be opened. It is a structure that cannot be used.

Specifically, first, a bank employee unlocks the bank lock with a designated bank key, and then the customer unlocks the customer lock with a unique customer key, and then the bolt is pulled in and the safe deposit box door is opened. Can be opened.

For locking, if the bank removes the bank key after the customer unlocks the safe deposit box, the bank lock will be automatically locked when the customer closes the door after using the safe deposit box and locks the customer lock. This is how it works.

However, if a customer leaves the safe deposit box temporarily, they can either leave the door open for a while, or they can close and lock the door, and then ask a bank staff member to unlock the bank again after they have finished their business. I had to get it.

In the former case, there was a safety problem, even temporarily, and in the latter case, although safe, it was a nuisance for both customers and banks.

It would be possible to install a separate lock that can be locked and unlocked by the customer alone, but conventional systems require two keys, making storage and unlocking/locking of keys cumbersome.

The present invention has been made in view of the above-mentioned drawbacks, and an object of the present invention is to provide a safe deposit box lock that can be temporarily locked and unlocked with - number of customer keys.

In order to achieve this object distantly, the present invention provides a safe deposit box lock equipped with a main customer lock that is unlocked and locked within the 10th rotation range of a predetermined customer key. locking·
An auxiliary customer lock to be unlocked is provided in a symmetrical relationship with the main customer lock with a key guide member in between.

The present invention will be described in detail below based on preferred embodiments shown in the accompanying drawings.

FIG. 1 is a longitudinal cross-sectional view showing an embodiment of the safe deposit box lock of the present invention in a locked state, and FIG. 2 is a longitudinal cross-sectional view showing the same embodiment in an unlocked state.
FIG. 3 is a longitudinal cross-sectional view showing a state of temporary locking using the auxiliary opening of the same embodiment.

The safe deposit box lock is box 1. Earthen floor 2. Main running board 3. Main customer lock 4
It consists of a bank lock 5, and an auxiliary customer lock 8 having an auxiliary opening 6 and a running board 7, which are the essential parts of the present invention.

All the locking members are housed inside the box 1 and attached to the back side of the moneylending bath (not shown).

The dirt floor 2 protrudes from the box 1 and fits into a recess 9a formed in a frame 9 of the safe deposit box, and maintains the door in a locked state where it cannot be opened.

The main running board 3 is formed integrally with the earthen floor 2, and has protruding pieces 10; 11 and elongated holes 12 along its longitudinal direction.

The protruding pieces io and ii are attached to each tumbler when the tumbler grooves 17 and 18 of the tumbler, which will be described later, are in a separated state.
When the tumbler grooves 17.18 of each tumbler are aligned at the predetermined unlocked position, the tumbler grooves 17.18 of each tumbler enter the tumbler grooves 17.18, thereby preventing the earthen floor 2 from being pulled in. Allow withdrawal.

The elongated hole 12 is loosely fitted into a pin 13 planted on the inner surface of the box 1, and guides the retraction and protrusion of the earthen floor 2 and regulates the distance of movement thereof.

Both the host lock 4 and the bank lock 5 are known tumbler locks.

As is well known, this has a plurality of tumblers stacked one on top of the other, and when a predetermined key 15 or 16 is turned, each tumbler is
is engaged with the key thread of each key 15.16, and the pin 13.1
4 as a fulcrum, the tumbler grooves 17 and 18 are aligned to the unlocked position, allowing the earthen floor 2 to be pulled in.

However, in the drawing, only one tumbler is shown for the sake of simplicity.

Since each tumbler is always urged to rotate counterclockwise by springs 19 and 20, keys 15 and 20 are always urged to rotate counterclockwise.
Unless the tumbler groove 16 is rotated, the tumbler grooves 17 and 18 will not be aligned to the unlocked position.

Therefore, normally the locked position is maintained and the protruding state of the earthen floor 2 is maintained.

The auxiliary customer lock 8 is a tumbler lock provided in a symmetrical relationship with the main customer lock 4, sandwiching the illustrated through key guide member 26.

The auxiliary opening 6 is installed below the earthen floor 2 in parallel with this, and the auxiliary running plate 7 formed integrally with the auxiliary opening 6 is provided with a projection piece 21 and a long hole 22 in the same way as the main running plate 3. It is being

A recess 23 is bored in the frame 9 to receive the auxiliary opening 6 when it protrudes from the box 1.
3 may be formed integrally with the recess 9a.

Each tumbler is rotatable about a pin 24,
It is always urged by a spring 25 to rotate clockwise.

A lever 27 is fixed to the end of the key guide member 26 of the customer key 15, and this lever 27 rotates integrally with the customer key 15, and engages surfaces 3ay, 3b formed on each running plate 3, 7. ? a
, 7b and push it, the running plates 3, 7
, and protrude or retract the dirt floor 2 cabinet or the auxiliary opening 6.

That is, the bank key 16 merely aligns the tumbler groove 18 to the unlocked position as shown in FIG. 2, but the customer key 15 not only aligns the tumbler groove 17 to the unlocked position, but also The lever 21 also allows the earthen floor 2 and the auxiliary opening 6 to be extended and retracted.

Next, the operation and operation of the safety deposit box lock of the present invention constructed as described above will be explained step by step.

As shown in FIG. 1, when the door is closed and both the main customer lock 4 and the bank lock 5 are locked, the dirt floor 2 protrudes and the tumbler grooves 17 and 18 of each lock 4 and 5 are connected to the main running plate 3. is in a locked position that prevents the vehicle from reversing.

However, the auxiliary opening 6 is retracted 1 and the auxiliary customer lock 8 is in the unlocked state.

When a customer opens this safe deposit box, a bank employee first inserts the bank key 16 into the key guide member of the bank lock 5 and rotates it 90 degrees clockwise.

By this operation, the tumbler groove 18 of the bank lock 5 is aligned to the unlocked position and held at this position.

Next, when the customer inserts the customer key 15 into the key guide member 26 and rotates it clockwise 1800 times, the key thread is moved to the main customer lock 4 during the first 900 turns clockwise from the locked position.
The lever 27 engages with the engagement surface 3b of the main running plate 3 and pushes it, so that the tumbler groove 17 is aligned to the unlocked position and is further rotated 90 degrees in the same direction. The board 3 is moved back and the dirt floor 2 is pulled in.

The rotation range of the customer key 150 described above is the tenth rotation range in which the customer key 15 can lock and unlock the main customer lock 4.

The door can now be opened, but once the earthen floor 2 is retracted, the bank key 16 is returned to the locked position and pulled out.

Here, the operation and operation of the case are similar to those of a conventional safe deposit box lock.

If the customer temporarily leaves the safe deposit box (for example, to go to the bathroom or do business in another room), the customer key 15 is further rotated 180 degrees clockwise after closing the door.

In the process of first rotating 90 degrees clockwise, the customer key 15
Although the key thread does not act on the tumbler of the auxiliary customer lock 8, the lever 27 engages with the engagement surface 7a of the auxiliary running plate 7 and pushes it forward, so the auxiliary amount 6 protrudes and fits into the recess 23. do.

As the housing auxiliary running plate 7 moves forward, the projection piece 21 that has been fitted into the tumbler groove 28 is pulled out, so that each tumbler
is rotated by the biasing force of the spring 25 and comes into contact with the lock of the key 15.

Further, while the customer key 15 is rotated 90° clockwise, the tumblers are rotated by the force of the spring 25, and the tumbler grooves 28 are in the locked position where they are separated. Displace.

Each tumbler cooperates with the projection piece 21 of the auxiliary running plate 7 to prevent the auxiliary amount 6 from being withdrawn.

This state is shown in FIG. If the customer pulls out the customer key 15 in this state, the safe deposit box lock enters a so-called temporarily locked state, and the customer can leave the safe deposit box and complete his/her desired errands.

When the customer who has finished his temporary business opens the door again, he inserts the customer key 15 into the key guide member 26 and rotates it 180 degrees counterclockwise.

While the customer key 15 is first rotated 900 times counterclockwise, the key thread engages the tumbler of the auxiliary customer lock 8 and aligns the tumbler groove 28 to the unlocked position.

While the lever 27 is further rotated 90° counterclockwise, the lever 27 comes into contact with the engagement surface 7b of the auxiliary running plate 7, and pushes this to move the auxiliary running plate 7 backward, so that the auxiliary amount 6 is retracted.

The above rotation range is the 20th rotation range of the customer key 15 in which the customer key 15 can lock and unlock the auxiliary customer lock 8.

When you finish your business and lock the safe deposit box, use the customer key 15.
From the state shown in Figure 2, rotate it 180 degrees counterclockwise and return it to the locked position.

During this rotation, the main running plate 3 moves forward and the mold opening 2 protrudes.
Further, the respective tumbler grooves 17 and 18 are displaced to irregular locking positions to prevent the main running plate 3 from moving backward, and the main customer lock 4 and the bank front 5 are both locked.

According to the safe deposit box lock of the present invention as shown in the diagonal above, it is possible to temporarily lock the safe deposit box lock with a single customer key, and this eliminates the trouble associated with opening and closing the safe deposit box door. is largely eliminated.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view showing an embodiment of the safe deposit box lock of the present invention in a locked state, and FIG. 2 is a longitudinal cross-sectional view showing the same embodiment in an unlocked state.
FIG. 3 is a longitudinal sectional view showing a state of temporary locking using the amount of assistance in the same embodiment. 1...Box, 2...Mold opening, 3...
...Main running board, 4...Main customer lock, 5...
... In front of the bank, 6 ... Auxiliary amount, 7 ... Auxiliary running board, 7 a, 7 b ... Engagement surface, 8 ...
... Auxiliary customer lock, 9 ... Frame frame, 15 ...
...Customer key, 21... Protrusion piece, 23...
・Recessed portion, 26...Key guide member, 27...
..., lever, 28... tumbler groove.

Claims (1)

[Scope of Claims] 1. A key guide member 26 rotatably supporting a customer key and equipped with a lever 27 that rotates integrally with the customer key, and a predetermined customer key inserted into the key guide member 26. The key 15 is unlocked and locked in conjunction with the customer key 15 and the lever 27 in the 10th rotation range of the key 15, and the customer key 15 is unlocked and locked in the 20th rotation range, which is different from the 10th rotation range of the customer key 15. Key 15 and lever 2
7 is disengaged and maintains the unlocked state, and the lever 27 is attached to the opposite side of the main lock 4 with the key guide member 26 in between, and the lever 27 is held in the second rotation range of the customer key 15.
The auxiliary amount 6 is extended or retracted in association with
1. A safe deposit box lock with an auxiliary bar, characterized in that it comprises an auxiliary lock 8 consisting of a plurality of tumblers that can be moved to an unlocked position that engages with a key thread and allows the auxiliary amount 6 to be pulled in. 2. The main customer lock 4 is provided with an integrally formed dirt floor 2 and a main running plate 3, and the auxiliary amount 6 is integrally formed with the auxiliary running plate 7, and within the 10th rotation range of the customer key 15. The lever 27 engages with the couplings 3a and 3b formed on the main running plate 3 to protrude and retract the earthen floor 2 through the main running plate 3, and the lever 27 engages with the engaging parts 3a and 3b formed on the main running plate 3, and extends and retracts the dirt floor 2 through the main running plate 3. 27 engages with the engaging surfaces 7a and 7b formed on the auxiliary running plate 7 to project and retract the auxiliary amount 6 via the auxiliary running plate 7.
Safe deposit box lock with auxiliary bar as described in section.