JPH0229175Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a lock device, and in particular, to a door lock provided on the inside of a door plate of a safe deposit box, such as a safe deposit box lock in a financial institution, and a door lock for this door. The present invention relates to a lock device consisting of a double lock with an outer lock that covers the keyhole of the lock.

[Conventional technology]

Conventionally, safe deposit boxes installed in banks, etc. have a large number of safe deposit boxes arranged in a stacked manner inside the safe deposit box, and each safe deposit box has a front door with a customer lock that can be unlocked with a key owned by each customer. When a customer uses a safe deposit box with a bank lock managed by the bank and the customer has a contract, both the bank representative and the customer must accompany the customer to the safe deposit box. Unlocking bank locks and customer locks required extremely cumbersome collaborative work and procedures. Therefore, banks provide a customer lock on one side of the door plate at the front of the safe deposit box, and are equipped with a sliding member that covers the keyhole of the door lock and one or more magnetic pins that lock the sliding member. A method has been developed in which the magnetic card issued by the bank to the customer is inserted into the bank lock, and the magnetic pin is unlocked by the magnetic force of the magnetic material provided in the magnetic card. A patent application was filed (see Japanese Patent Publication No. 61-56381).

[Problem that the invention attempts to solve]

In this case, the customer receives a magnetized magnetic card at the bank's reception department, inserts it into the bank lock to unlock the bank, then unlocks the door lock with the customer's own key and locks the safe deposit box. After using the service, they locked the door and bank lock themselves and left the room, so there was no need for a bank representative to accompany them, and the intended purpose was achieved. However, the problem that remains is that these conventional lock devices are structured so that the magnetic card can be removed without having to lock the bank lock, that is, the outer lock that covers the keyhole of the door lock. Sometimes, customers forget to lock the outer lock after using the safe deposit box and leave the room, which can lead to accidents.

The present invention was developed in view of the above-mentioned problems, and its purpose is to provide a lock device that has a structure in which the magnetic card cannot be removed from the outer lock unless the outer lock is locked, and that allows confirmation that the outer lock is locked. do.

[Means for solving problems]

As a specific means for achieving the above object, the present invention provides a door lock provided on the inside of the door plate, an outer lock that covers the keyhole of the door lock on the outside of the door plate, and an outer lock that can be unlocked. The magnetic card is provided with a hole to prevent the magnetic card from being removed when the outer lock is unlocked, and the outer lock is provided with a hole on the surface of the door plate. It has a lock body to be fixed, a magnetic card insertion slot on the end face, a raised part formed on the inner wall surface, and slides along the lock body when unlocking to expose the keyhole of the door lock. A lock cover, a cannula lever that is pivotally supported by the lock main body, has a stepped part on the upper part that is engaged with a raised part of the lock cover, and has an unlocking protrusion on the inside part, and a specific magnetic card. A lock part housed inside the lock cover and a drive plate integrally provided with the lock part and formed on the cannula lever so that the lock can be released and moved in the insertion direction of the magnetic card. an engaging member having a diagonal long groove that engages with the unlocking protrusion, and releasing the engagement between the raised part of the lock cover and the stepped part of the cannula lever by movement of the lock part; The present invention proposes a lock device characterized in that a card locking protrusion is formed on the lower part of the locking device to be inserted into a hole formed in the magnetic card when the lock is unlocked.

[Effect]

When the outer lock is unlocked with the magnetic card, the card locking protrusion at the bottom of the cannula lever is inserted into the hole drilled in the magnetic card, and the magnetic card is locked in the outer lock.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

Fig. 1 is a perspective view showing an example of a locking device embodying the present invention, Fig. 2 is a perspective view A of Fig. 1 with the lock cover removed, and Fig. 3 is a -
FIG. In these figures, B is the door plate of each safe deposit box. A door lock C as a customer lock is attached to the inside of the door plate B, and an external lock as a bank lock is attached to the outside of the door plate B. D is attached. The door lock C is provided with a locking vault (not shown), and by inserting a key owned by the customer into the keyhole G and turning the locking vault, the locking vault locks into the lock receptacle provided on the frame of the safe deposit box. It moves sideways against the door and is unlocked. In addition, the outer lock D has a horizontally long lock cover 1.
0 and a lock main body 12 fixed to the surface of a door plate B, and an insertion slot F for a magnetic card E is formed in the right end face of the lock cover 10 in the figure.

The lock cover 10 of the outer lock D is located in the keyhole G of the door lock C.
It covers the lock main body 12 adjacent to this keyhole G, and is fitted into the lock main body 12 so as to be slidable in the longitudinal direction, so that when the keyhole G is slid toward the side far from the keyhole G, the keyhole G is exposed. It is configured.

A storage plate 14 is fixed to the lock main body 12, and a protrusion 18 is provided on the lower end surface of the storage plate 14.
A lock part 16 having a diameter is provided. The tip of the magnetic card E inserted through the insertion slot G on the end face of the lock cover 10 comes into contact with the protrusion 18 of the lock part 16. A spring 20 is press-fitted between one end of the lock part 16 and the inner end of the storage plate 14, and biases the lock part 16 in the direction of the magnetic card insertion slot F.

As shown in FIG. 6, a plate-shaped locking member 52 is fixed to the storage plate 14, and a locking member 52 is fixed to the storage plate 14, and the locking member 52 is perpendicular to the plate surface.
A magnet pin 54 is loosely fitted in a predetermined position. One end of this magnetic pin 54 is attached to the storage plate 1.
4 via a spring 56, and the other end is lightly pressed against the lock part 16 by the slight pressure of the spring 56. An engagement hole 16a is bored in the lock part 16 at a position corresponding to the magnet pin 54, and one end of the magnet pin 54 is engaged with the engagement hole 16a to prevent the lock part 16 from moving. The N-S polarity of each magnet pin 54 is different for each safe deposit box square.

The magnetic card E is magnetized by an encoder installed in the bank's reception department at any point on the card surface, based on magnetic characteristic information that differs for each bank lock in each safe deposit box. . When this particular magnetic card E is inserted through the insertion slot F and is housed in a predetermined position, the polarity of the magnetized position point of the magnetic card E and each magnet pin 54 becomes the same, and they repel each other. The repulsive force overcomes the slight pressure of the spring 56, and the magnetic pin 54 rises and escapes from the engagement hole 16a of the lock part 16.
Therefore, the lock part 16 is disengaged from the magnet pin 54, and the magnetic card E can be moved in the insertion direction.

A drive plate 22 shown in FIG. 3 is fitted into the upper part of the lock part 16, and two engaging members 23 are integrally provided on both sides of the drive plate 22. Since the engaging members 23 have the same shape and perform the same function, only one will be described.

As shown enlarged in FIG. 4, the lock cover 10
On the inner wall of the
A raised portion 44 and a second raised portion 46 closer to the keyhole G of the door lock are formed. When the outer lock D is locked, the engagement member 23 is disposed so as to come into contact with the lower end of the raised portion 44 shown in FIG. It is formed diagonally at a 45 degree angle. An unlocking protrusion 38 of a cannula lever 30, which will be described later, is fitted into this long groove 25.

A pair of support parts 26 shown in FIGS. 2 and 3 are attached to the storage plate 14, and a shaft 28 is attached to this.
will be erected. A pair of arm portions 32 are attached to this shaft 28.
and a rear plate-like body 34 spanning between the ends of the cannuki lever 30, which is integrally formed in a U-shape.
is attached so that it can move in an arc around the shaft 28.

A stepped portion 36 is formed at the upper part of the pair of arm portions 32 of the cannula lever 30 near the middle, and as shown in FIG. It is locked. Furthermore, unlocking protrusions 38 are provided at predetermined positions on both inner sides of the arm portion 32 of the cannula lever 30, and the unlocking protrusions 38 are connected to the engaging member 2.
It is slidably engaged with the long groove 25 of No. 3. The lock body 1 is attached to the rear plate-like body 34 of the cannuki lever 30.
A coil spring 40 is interposed between the lock cover 2 and the lock cover 10, and constantly biases the rear plate-shaped body 34 in a rotating direction so as to bring it into pressure contact with the lock cover 10.

As shown in FIGS. 1 and 4, the magnetic card E is provided with a hole 13 for preventing the magnetic card from being removed when the outer lock D is unlocked. Then, the rear plate-shaped body 3 of the cannuki lever 30
A card locking protrusion 42 to be inserted into the hole 13 of the magnetic card is formed at the lower part of the magnetic card.

In the vicinity of the magnetic card insertion slot F, the lock body 12
As shown in FIG. 2, a flat spring 48 is secured at one end with a bolt or the like and is placed in pressure contact with the inner end surface of the lock cover 10 when the outer lock D is locked. The cover 10 is biased in the direction of sliding along the lock body 12 (to the right in the figure).

In addition, in order to prevent the outer lock D from coming into contact with the door plate or outer lock of an adjacent safe deposit box and being damaged when the door plate B is opened, a lock cover 10 is installed as shown in FIG. A protective member 50 may be attached to the outer end of the holder.

Next, the operation of the lock device provided with the above mechanism will be explained.

A door lock C installed on the inside of the door plate B of the safe deposit box,
An outer lock D that covers the keyhole G of the door lock C on the outside of the door plate B is normally locked. In other words, the door lock C has a locking vault inserted into the lock receiver provided in the frame of the safe deposit box, and the outer lock D
Since the stepped portion 36 of the cannula lever 30 is locked to the first raised portion 44 provided on the inner wall surface of the lock cover 10, and the cannula lever 30 is pressed against the lock cover 10 by the coil spring 40, The operation of sliding the lock cover 10 along the lock body 12 is inhibited.

Now, when a customer wants to use a safe deposit box, the customer receives a magnetized magnetic card E at the bank's reception department, and inserts the outer lock D of the safe deposit box as shown in Figure 3. Insert this into mouth F. As described above, when the magnetic card E is inserted into the lock part 16, the magnetic pin 54 that is engaged with the engagement hole 16a of the lock part 16 rises to be disengaged, and the lock part 16 moves in the insertion direction of the magnetic card E. becomes possible. However, in this state, the lock cover 10
The first protuberance 44 and the stepped portion 3 of the cannuki lever 10
6 remains locked (FIG. 4), and the lock cover 10 cannot be slid. Here, when the customer further pushes in the magnetic card E, the tip of the magnetic card E pushes against the protrusion 18 of the lock part 16, and the lock part 16 is moved in the insertion direction of the magnetic card E (to the left). The drive plate 22 fitted to the lock part 16 also moves together, and along with this,
Since the two engaging members 23 also move leftward from the position shown in FIG. 4 to FIG. Then slide it diagonally downward toward the opening 24 side. The unlocking protrusion 38 is connected to the arm portion 32 of the cannula lever 38.
Due to this sliding movement, the cannula lever 30 moves downward about the shaft 28 and moves between the stepped portion 36 and the first raised portion 4 of the lock cover 10.
4 is disengaged. At this time, the magnetic card E inserted from the insertion slot F is inserted into the card locking protrusion 4 formed on the rear plate-like body 34 of the cannuki lever 30.
2 is inserted into the hole 13 of the magnetic card E, and cannot be removed by hand. Simultaneously with the separation of the stepped portion 36 from the first raised portion 44 of the lock cover 10,
The lock cover 10 is biased by a flat spring 48 interposed between the lock cover 10 and the lock body 12.
Slide slightly to the right along the

As a result, the outer lock D is unlocked, and when the lock cover 10 is further slid to the right by hand, the stepped portion 36 of the cannula lever 30 is moved to the second position of the lock cover 10.
The lock cover 10 is braked by contacting the raised portion 46 of the lock cover 10 . At the stop position of the lock cover 10, the magnetic card E is exposed with its end slightly peeking out from the rear end of the lock cover, but as described above, the card locking protrusion 42 is fitted into the hole 13. Since it is inserted, it cannot be removed by hand. This stop position of the lock cover 10 also means that the lock cover 10
This is also the position that exposes the keyhole G of the door lock, which was hidden by the door.

The customer inserts his own key into the exposed keyhole G, unlocks the door lock C, and opens the door plate B to use the safe deposit box. After use, close door plate B and lock door C.
After locking, slide the lock cover 10 to the left. When the lock cover 10 is in the position shown in Fig. 5,
The cannula lever 30 is pushed up by the biasing force of the coil spring 40 and comes into contact with the inner wall surface of the lock cover 10, as shown in FIG. , outer lock D
will be locked. Due to the upward movement of the cannula lever 30, the card locking protrusion 42 comes off from the hole 13 of the magnetic card E, leaving the magnetic card E free, so the customer can remove it and return it to the reception department. Exit.

[Effect of idea]

According to the present invention having the above structure, the magnetic card is inserted through the insertion slot of the outer lock, the lock part is moved, and the cannula lever is lowered to unlock the outer lock, and at the same time the cannula lever protrudes from the bottom surface. Since the provided card locking protrusion is inserted into the hole drilled in the magnetic card, the magnetic card is locked inside the outer lock, and as long as the outer lock is in the unlocked state,
It cannot be extracted. Furthermore, after using the safe deposit box, the magnetic card can only be removed after the outer lock is completely locked, which prevents forgetting to lock the outer lock, thereby enhancing the bank's safe deposit box management operations. be able to. In addition, the unlocking mechanism of the outer lock is formed with a raised part formed on the inner wall surface of the lock cover,
It is constructed with a simple locking device using a cannula lever, and since the cannula lever also serves as a locking mechanism for the magnetic card, the number of parts is small and it is very economical.

[Brief explanation of the drawing]

The drawings are all embodiments of the present invention, and Fig. 1 is a perspective view of the lock device, Fig. 2 is an A perspective view of Fig. 1 with the lock cover removed, and Fig. 3 is also shown along the - line. FIG. Figures 4 and 5
The figure is an enlarged sectional view showing the operating state of locking and unlocking the outer lock. FIG. 6 is a sectional view showing the state of engagement between the lock part and the magnet pin. B...Door plate, C...Door lock, D...Outer lock, E...
Magnetic card, F...insertion slot, G...keyhole, 10...
...Lock cover, 12...Lock body, 13...Hole,
16...Lock parts, 18...Protrusions, 22...
... Drive plate, 23 ... Engagement member, 24 ... Opening,
28...Shaft, 30...Kannuki liver, 36...
Step part, 38... Unlocking protrusion, 40... Coil spring, 42... Card locking protrusion, 44... First raised part, 46... Second raised part, 48... Flat spring, 52... Locking member, 54... Magnetic pin, 56... Spring.

Claims (1)

[Scope of Claim for Utility Model Registration] Consisting of a door lock provided on the inside of the door plate, an outer lock that covers the keyhole of the door lock on the outside of the door plate, and a magnetic card for unlocking the outer lock, The magnetic card is provided with a hole to prevent the magnetic card from being removed when the outer lock is unlocked, and the outer lock includes a lock main body fixed to the surface of the door plate, and an end face. a lock cover having a magnetic card insertion slot, a raised part formed on an inner wall surface, and sliding along the lock body to expose the keyhole of the door lock when the lock is unlocked; The lock lever is supported by a cannuke lever, which has a stepped part on the upper part that is engaged with the raised part of the lock cover, and has an unlocking protrusion on the inside part, and a cannuke lever that is unlocked by a specific magnetic card and released by the magnetic card. A lock part is housed inside the lock cover so as to be movable in the insertion direction, and an oblique part is provided integrally with the lock part via a drive plate and engages with an unlocking protrusion formed on the cannula lever. an engaging member that has a long groove and releases the engagement between the raised part of the lock cover and the stepped part of the cannula lever by movement of the lock part; A lock device characterized in that a card locking protrusion is formed to be inserted into a hole drilled in a card.