JP3121516U - Electronic lock device for storage equipment - Google Patents

Abstract

To provide an electronic lock device for a storage device that can be unlocked by a specific operation when unlocking is impossible and cannot be unlocked with a simple tool.
An electronic lock device that locks and unlocks a lock in a storage device having a main body and an opening / closing portion according to an output of an electronic authentication means, and has a sickle shape and a tip that can be bent in one direction. A rotary deadbolt 11 that is attached to at least one of the main body and the opening / closing part, and that fixes the opening / closing part with respect to the main body by rotating in the forward and reverse directions around the rotation axis, and releases the same. A gear 20 that transmits a driving force for rotating the rotary deadbolt, a motor 33 that drives the gear by energization, a drive circuit 102 that energizes the motor when a drive signal is given, and electronic authentication. An electronic lock device characterized by comprising determination means 101 for performing a drive signal to the drive circuit.
[Selection] Figure 1

Description

  The present invention relates to an electronic lock device for a storage device, and more particularly to an electronic lock for locking an opening / closing part of a storage device such as a library, a locker, a desk, or a storage.

In storage devices, in addition to mechanical locks traditionally used for safe storage of stored items, electronic lock devices that are electronically locked and unlocked are widely used (see Patent Documents 1 and 2). However, in general, the electronic lock alone is rarely used, and there is a mechanical lock for emergency use. This is due to the reliability of the electronic component. Here, as seen in the example of the cylinder lock, there are examples in which the mechanical lock can be unlocked with a simple tool even when the mechanism is complicated, and there are many security problems. For this reason, an electronic lock without a mechanical lock is desired.
JP 07-166743 A Japanese Unexamined Patent Publication No. 07-293068

  However, in the case of the electronic lock alone, there may be a problem caused by a malfunction of the electronic circuit. In particular, it is necessary to assume that a situation where the unlocking is impossible due to a failure of the electronic component occurs.

  The present invention has been made in consideration of the above points, and an object thereof is to provide an electronic lock device for a storage device that can be unlocked by a specific operation when unlocking is impossible and cannot be unlocked with a simple tool. To do.

In order to achieve the above object, the present invention
In an electronic lock device that locks and unlocks a lock in a storage device having a main body and an opening / closing portion according to the output of the electronic authentication means, the overall shape is a sickle shape and the tip can be bent in one direction, the main body and A rotary deadbolt that is attached to at least one of the open / close portions and rotates in the forward and reverse directions around the rotation axis to fix and release the open / close portion with respect to the main body, and the rotary deadbolt A gear for transmitting a driving force for rotating the motor, a motor for driving the gear by energization, a driving circuit for supplying a driving signal to energize the motor, and a driving signal for performing electronic authentication to the driving circuit. An electronic lock device characterized by comprising determination means for providing

  As described above, the present invention is configured such that the dead bolt drive mechanism that rotates and fixes the main body of the storage device and the opening / closing portion of the electronic lock can be manually operated. Even if the operation becomes impossible and unlocking becomes impossible, the dead bolt can be unlocked by manually operating the drive mechanism.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

Reference example 1

  FIG. 1 shows the internal configuration of Reference Example 1 of the present invention. In this case, the electronic lock device is mounted so that it can be operated from the outside in the form of being housed in a case with a lid and protruding or embedded in the outer surface or inner surface of the opening / closing part of the storage device. The battery as the power source can be exchanged from the outside.

  However, in FIG. 1, for convenience of illustration, a case 100 with a lid is attached on the outer surface of the opening / closing part 200, and each element constituting the present invention is housed in the case 100.

  The case 100 is arranged so that the dead bolt 11 can be inserted into a hole provided in a main body of a storage device (not shown). The dead bolt 11 is attached so as to be movable in the linear direction while receiving the acting force in the backward direction (to the right in the figure) by the spring 12 so that the dead bolt 11 can be inserted and removed from the end of the case 100.

  The dead bolt 11 has a gear processed on the lower surface in the drawing, and a gear 31 is arranged opposite to the gear processed portion. The gear 31 is given a rotational force by an operation mechanism.

  The gear machining may be performed not on the outer peripheral surface of the dead bolt 11 as shown in the figure, but on the inner surface of the portion through which the dead bolt 11 is wound. With such a configuration, the thickness dimension of the case 100 increases, but the height dimension can be reduced. Since the case 100 also accommodates a battery (not shown) having a size larger than that of other elements, the entire size of the case 100 is reduced by punching the dead bolt 11 and machining the gear. And compact.

  The operation mechanism includes a gear 31, a reduction gear box 32, and a motor 33. The operation mechanism rotates when the motor 33 is energized by a drive circuit (not shown) to rotate the gear 31.

  The entire operation mechanism is integrally configured, and the reduction gear box 32 is held by a holding portion 34 provided in the case 100 and a security screw 35 screwed into a screw hole provided in the case 100. When the security screw 35 is removed, the gear 31 and the motor 33 are moved together with the reduction gear box 32.

  The security screw 35 is configured such that its installation position cannot be recognized from the outside so that only the person concerned can understand. The person concerned breaks a predetermined part of a lid (not shown) of the case 100 with a tool, removes the security screw 35, and moves the gear 31.

  The operating mechanism is moved when the electronic parts of the drive circuit (not shown) break down and the dead bolt 11 remains protruding, and the gear 20 is freed so that the dead bolt 11 contracts with the spring 12. This is to enable movement to the right in the figure.

  Thereby, the deadbolt 11 is accommodated in the case 100, and the opening / closing part 200 can be opened. The electronic lock device is replaced or repaired.

Reference example 2

  FIG. 2 shows a reference example 2 of the present invention. In the reference example 2, the rotation shaft of the gear 21 is configured by the security screw 22, and the gear 21 can be removed by removing the security screw 22.

  Also in this case, the security screw 22 is provided at a position unknown to outsiders and known only to those concerned.

Reference example 3

  FIG. 3 shows Reference Example 3 of the present invention. In this reference example 3, the dead bolt 11 is made free by shifting the position rather than removing the gear 21. In other words, the extensible spring 22 attached to the rotating shaft of the gear 21 always pushes the gear 21 up to the position where it engages with the dead bolt 11, and the parties concerned resist the extension force of the extensible spring 22 in an emergency. The dead bolt 11 is made free by depressing 21. As a result, it is possible to move the dead bolt 11 in the right direction in the drawing by applying the acting force in the backward direction to the dead bolt 11 by the contraction force of the spring 12.

Reference example 4

  FIG. 4 shows a reference example 4 of the present invention. In Reference Example 4, the shaft hole of the gear 21 is covered with a lid 23 to close the shaft hole, and the tip of the rotating shaft 24 is brought into contact with the closed lid 23.

  With this configuration, the gear 21 is lowered by its own weight, but can only be lowered to a position regulated by the lid 23 with respect to the rotation shaft 24 and is held near the upper end of the rotation shaft 24.

  In an emergency, when the gear 21 is pressed and the lid 23 is removed from the gear 21, the dead bolt 11 becomes free.

Reference Example 5

  FIG. 5 shows Reference Example 5 of the present invention. In the reference example 5, a step portion 25 is formed in which the center portion of at least one end face of the gear 21 is protruded in the axial direction, and a tool such as a screwdriver is inserted into a groove cut into the center of the step portion 25 to thereby insert the gear 21. To turn the dead bolt 11 in and out.

  The groove of the stepped portion 25 may be a minus type or a plus type, or may be changed to an outer peripheral surface shape suitable for a polygonal hole or a polygonal nut.

Embodiment 1

  6 (a) and 6 (b) show Embodiment 1 of the present invention. In the first embodiment, the dead bolt 11 is rotated and engaged with the object, and the engagement is released. What is rotated and locked in this way is that the force is applied to the tip of the dead bolt 11 from the gap of the storage device to force the dead bolt 11 to be retracted regardless of the meshing relationship with the gear 20 and unlock. Easy to do.

  As a countermeasure, when a force for unlocking is applied to the distal end portion of the dead bolt 11, the dead bolt 11 is further protruded so that it cannot be unlocked.

  That is, the dead bolt 11 has a distal end side rotation shaft 11b in addition to the proximal end side rotation shaft 11c. As a result, as shown in FIG. 6B, when a large upward force is applied to the distal end of the dead bolt 11 in the locked state, the proximal end side 11a of the dead bolt rotates about the rotation shaft 11c. At the same time, the distal end side 11b rotates around the rotation shaft 11d.

  As a result, the arc drawn by the tip of the dead bolt 11 has a longer protruding length, and the length inserted into the hole 300 on the main body side becomes larger, making it difficult to unlock.

Embodiment 7

  FIGS. 7A and 7B show a second embodiment which is another countermeasure in place of the first embodiment. In the second embodiment, the rotation shaft hole is a long hole so that the fulcrum 11e of the dead bolt 11 can move.

  As a result, the rotatable range of the deadbolt 11 extends in the upward direction in the figure, but there is almost no movement in the right direction in the figure that leads to the unlocking operation, and even if there is little, the unlocking is not performed.

Circuit configuration example

  FIG. 8 shows an example of a circuit configuration used in the electronic lock device of the storage device according to the present invention. The security determination is performed, for example, when the RFID determination unit 101 electronically authenticates the RFID card. If the card is correct, the motor drive circuit 102 is operated to drive the motor 33 and the speed reduction mechanism 32, the gear 31, and the gear 21 are used. Then, the dead bolt 11 is moved in the horizontal direction in the figure to be inserted into and removed from the hole on the main body 300 side, and locked or unlocked.

Security screw

  9A, 9B, and 9C are perspective views showing examples of security screws used in the present invention. In any case, the head shape is special, and it is difficult to loosen it without using a special tool specially made.

Explanatory drawing which shows the structure of Embodiment 1 of this invention. Explanatory drawing which shows the structure of Embodiment 2 of this invention. Explanatory drawing which shows the structure of Embodiment 3 of this invention. Explanatory drawing which shows the structure of Embodiment 4 of this invention. Explanatory drawing which shows the structure of Embodiment 5 of this invention. 6 (a) and 6 (b) are a structural explanatory diagram of Embodiment 6 of the present invention and a corresponding explanatory diagram for an unauthorized unlocking operation. 7 (a) and 7 (b) are diagrams for explaining the structure of Embodiment 7 of the present invention and for explaining the correspondence to the unauthorized unlocking operation. The figure which shows the circuit structure used for this invention. FIGS. 9A to 9C are perspective views showing examples of security screws used in the present invention.

Explanation of symbols

11 dead bolt, 11a base end, 11b tip, 11c rotating shaft, 11d rotating shaft, 12 spring, 20 gear device, 21 gear,
22 security screw, 23 lid, 24 rotating shaft, 25 steps,
31 gear, 32 gear with reduction mechanism, 33 motor, 34 support member,
35 Security screw, 100 case, 101 RFID judgment circuit,
102 drive circuit, 200 opening / closing part, 300 main body.

Claims (2)

In the electronic lock device that locks and unlocks the lock in the storage device having the main body and the opening and closing unit according to the output of the electronic authentication means,
The overall shape is a sickle shape and the tip can be bent in one direction, and is attached to at least one of the main body and the opening / closing part, and rotates in the forward and reverse directions around the rotation axis, thereby opening and closing the opening / closing part. Rotating deadbolt that is fixed to the main body and released,
A gear for transmitting a driving force for rotating the rotary deadbolt;
A motor that drives the gear by energization;
A drive circuit which is supplied with a drive signal and energizes the motor;
An electronic lock device comprising: determination means for performing electronic authentication and providing a drive signal to the drive circuit. The electronic lock device according to claim 1,
The rotary deadbolt is an electronic lock device in which a hole into which a rotating shaft is inserted is formed as a long hole extending in one radial direction.

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