JP2021095745A - Locking device - Google Patents

Abstract

To provide a locking device easily operated and capable of unlocking even when an unlocking operation is forgotten even while security is ensured.SOLUTION: A second shaft 27 of a key device 2 comprises permanent magnets Mb1-12 for transmitting a rotational force to a first shaft when the second shaft rotates at the end on the first shaft 116 side when coaxially arranged side by side with the first shaft 116 of a locking device 2. The first shaft 116 comprises permanent magnets Ma1-12 for receiving the rotational force transmitted from the permanent magnets Mb1-12 at the end on the second shaft 27 side when coaxially arranged side by side with the second shaft 27, and is rotated by means of the rotational force transmitted to the permanent magnets Ma1-12.SELECTED DRAWING: Figure 7

Description

The present invention is a locking device including a first shaft and a plurality of discs coaxially arranged in parallel with the first shaft, and the first shaft is rotated about an axis to cause a plurality of discs. The present invention relates to a locking device including a dial portion that enables the locking device to be unlocked by rotating the disc and matching the positions of the notches provided in each of the plurality of discs.

Conventionally, in order to ensure the security of the locking device, a locking device that reads the unlocking authority stored in the non-contact memory and can unlock only when the verification is successful has been used. For example, in the locking device disclosed in Patent Document 1, the digital key (key device) includes a battery and a non-contact type memory, and the direct current from the battery gives the unlocking authority stored in the non-contact type memory. By superimposing as an electric signal, power is supplied from the digital key to the digital lock (locking device), and the electric signal is transmitted, and the digital lock (locking device) that receives the power supply and the electric signal verifies the unlocking authority. Is to do.

Japanese Patent No. 6457139

However, the above-mentioned prior art has the following problems.
Locking devices such as those described above need to be configured with electrical circuits to receive power and electrical signals, but such electrical circuits can be destroyed when loaded with high voltage by a stun gun. There was a risk that the locking device would be unlocked illegally.

The present invention is intended to solve the above problems, and an object of the present invention is to provide a locking device that does not require an electronic circuit while ensuring security.

In order to solve the above problems, the locking device of the present invention has the following configuration.
(1) A locking device including a first shaft and a plurality of discs coaxially arranged in parallel with the first shaft, and the first shaft is rotated about an axis to cause a plurality of discs. Is rotated, and the positions of the notches provided in each of the plurality of discs match, so that the locking device can be unlocked. In the locking device provided with a dial portion, the locking device is unlocked by the key device. The key device has an authority information acquisition means for acquiring unlocking authority information for performing an unlocking operation, and a first shaft when the key device is positioned close to the locking device. The second shaft is provided with a second shaft arranged coaxially and a drive unit capable of rotating the second shaft about the axis based on the unlocking authority information. The second shaft is the first shaft. A power transmission unit that transmits a rotational force to the first shaft when the second shaft rotates about the axis is provided at the end on the first shaft side when aligned coaxially. The shaft is provided with a transmitted portion to which the rotational force is transmitted from the power transmission portion at the end on the second shaft side when aligned coaxially with the second shaft, and the rotational force transmitted to the transmitted portion causes the shaft. It is characterized by rotating.

(2) In the locking device according to (1), the locking device includes a non-contact memory for storing unlocking authority information, and the authority information acquisition means positions the key device in close proximity to the locking device. When this is done, the key device is located facing the non-contact type memory and reads the unlocking authority information from the non-contact type memory. The key device sets the drive unit based on the unlocking authority information read by the authority information acquisition means. It is characterized by including a control unit to be operated and a battery for supplying power to the control unit.

(3) In the locking device according to (1) or (2), the authority information acquisition means acquires unlocking authority information from a key management device that can be connected to the key device, and the key device acquires authority information. The means is characterized by including a control unit that operates the drive unit and a battery that supplies power to the control unit based on the unlocking authority information acquired from the key management device.

(4) In the locking device according to (2), the authority information acquisition means acquires unlocking authority information from a key management device that can be connected to the key device, and the control unit acquires unlocking authority information from the key management device. It is characterized in that the lock authority information is collated with the unlock authority information read from the non-contact memory, and the drive unit is operated when the collation is successful.

(5) In the locking device according to (1), the locking device includes a non-contact type memory for storing unlocking authority information, and the authority information acquisition means positions the key device in close proximity to the locking device. When the key device is located facing the non-contact type memory, the unlocking authority information is read from the non-contact type memory. The key device is provided with a display device, and the unlocking authority information read by the authority information acquisition means is used. It is characterized in that the unlocking method is displayed based on the above, and the drive unit can be manually operated.

(6) In the locking device according to (1) or (5), the authority information acquisition means acquires unlocking authority information from a key management device that can be connected to the key device, and the key device uses a display device. It is characterized in that the authority information acquisition means displays the unlocking method based on the unlocking authority information acquired from the key management device, and the drive unit can be manually operated.

(7) In the locking device according to (5), the authority information acquisition means acquires unlocking authority information from a key management device that can be connected to the key device, and the key device obtains unlocking authority information from the key management device. The lock authority information is collated with the unlock authority information read from the non-contact memory, and when the collation is successful, the unlocking method is displayed on the display device.

(8) In the locking device according to any one of (1) to (7), the locking device includes a contact portion for bringing the key device close to each other, and the contact portion is made of a non-magnetic material and is a locking device. In addition to forming at least a part of the outer surface of the magnet, when the first shaft and the second shaft are aligned coaxially, they are interposed between the transmitted portion and the power transmission portion, and the power transmission portion and the transmitted portion are interposed. Is composed of a permanent magnet, and the transmitted portion and the power transmitting portion are magnetically attracted to each other by the permanent magnet with the contact portion sandwiched between them, and the second shaft is rotated about the axis by the magnetic attraction. It is characterized in that the rotational force at that time is transmitted to the first shaft.

(9) In the locking device according to any one of (1) to (7), the transmitted portion is provided with a concave portion recessed along the longitudinal direction of the first shaft, and the power transmission portion is a concave portion. The second shaft is centered on the axis by providing a convex portion that can be fitted with the convex portion and fitting the convex portion and the concave portion when the key device is positioned close to the locking device. It is characterized in that the rotational force when it is rotated to the first shaft is transmitted to the first shaft.

The locking device of the present invention has the following actions and effects by having the above configuration.
According to the locking device described in (1), it is possible to provide a locking device that does not require an electronic circuit while ensuring security.
More specifically, when the key device is positioned close to the locking device, the first shaft and the second shaft are aligned coaxially. Then, when the second shaft is rotated by the drive unit based on the unlocking authority information, the rotational force is transmitted to the first shaft of the locking device by the power transmission unit and the transmitted unit. The transmitted rotational force rotates the first shaft, the positions of the notches provided in each of the plurality of discs are matched, and the locking device can be unlocked. That is, in order to unlock the locking device, it is not necessary to supply power or transmit an electric signal from the key device to the locking device. Therefore, the locking device does not require an electronic circuit, the possibility of being destroyed even when a high voltage is applied by the stun gun is reduced, and the risk of the locking device being illegally unlocked is reduced.

Here, the unlocking authority information refers to, for example, a code for unlocking. Further, the reference numeral refers to, for example, the rotation direction, the number of rotations, and the rotation angle of the first shaft for matching the positions of the notches of a plurality of discs. For example, in a locking device used for a safe or the like, the dial is rotated clockwise four times, the dial is stopped at a predetermined angle, and then the dial is further rotated counterclockwise three times to determine the predetermined value. A dial lock that performs an unlocking operation such as stopping the dial at the angle of is known, and the rotation direction, the number of rotations, and the rotation angle of the first shaft correspond to the unlocking operation of the dial lock. is there.

According to the locking device described in (2), it is possible to provide a locking device that does not require an electronic circuit while ensuring security.
When the key device is positioned close to the locking device, the reading unit reads the unlocking authority information from the non-contact memory. Then, the control unit that receives the power supply from the battery operates the drive unit and rotates the second shaft based on the unlocking authority information. The rotational force is transmitted to the first shaft of the locking device by the power transmission unit and the transmitted unit. The transmitted rotational force rotates the first shaft, the positions of the notches provided in each of the plurality of discs are matched, and the locking device can be unlocked. That is, in order to unlock the locking device, it is not necessary to supply power or transmit an electric signal from the key device to the locking device. Therefore, the locking device does not require an electronic circuit, the possibility of being destroyed even when a high voltage is applied by the stun gun is reduced, and the risk of the locking device being illegally unlocked is reduced.
Further, if, for example, the unlocking code is read from the non-contact memory as the unlocking authority information, the possibility that the code will be known to a third party is reduced, so that security is ensured.

According to the locking device described in (3), for example, a code for unlocking can be obtained from a key management device (for example, a key management box, a computer, a mobile terminal, etc.) as unlocking authority information. For example, the risk of the code being known to a third party is reduced, so that security is ensured.

According to the locking device described in (4), the unlocking authority information acquired from the key management device by the key device is collated with the unlocking authority information read from the non-contact memory, and only when the collation is successful. If the drive unit is operated and the unlocking operation is performed, the locking device can be unlocked only by a specific key device, and the security is further ensured.
At this time, as the unlocking authority information, for example, in addition to the code for unlocking, the identification number unique to the locking device is used, the identification number is collated, and the drive unit is operated based on the code. Can be considered.

According to the locking device according to (5), it is possible to provide a locking device that does not require an electronic circuit while ensuring security.
When the key device is positioned close to the locking device, the reading unit reads the unlocking authority information from the non-contact memory. Then, since the unlocking method based on the unlocking authority information is displayed on the display device, the user manually operates the drive unit and rotates the second shaft based on the display. The rotational force is transmitted to the first shaft of the locking device by the power transmission unit and the transmitted unit. The transmitted rotational force rotates the first shaft, the positions of the notches provided in each of the plurality of discs are matched, and the locking device can be unlocked. That is, in order to unlock the locking device, it is not necessary to supply power or transmit an electric signal from the key device to the locking device. Therefore, the locking device does not require an electronic circuit, the possibility of being destroyed even when a high voltage is applied by the stun gun is reduced, and the risk of the locking device being illegally unlocked is reduced.
The unlocking method displayed on the display device is, for example, a code for unlocking. If the code is read from the non-contact memory, the possibility that the code will be known to a third party is reduced, so that security is ensured.

According to the locking device described in (6), for example, a code for unlocking can be obtained from a key management device (for example, a key management box, a computer, a mobile terminal, etc.) as unlocking authority information. For example, the risk of the code being known to a third party is reduced, so that security is ensured.

According to the locking device described in (7), the unlocking authority information acquired from the key management device by the key device is collated with the unlocking authority information read from the non-contact memory, and only when the collation is successful. If the unlocking method is displayed on the display device, the unlocking method cannot be performed without using a specific key device, and the security is further ensured.
At this time, as the unlocking authority information, for example, in addition to the code for unlocking, the identification number unique to the locking device may be used to collate the identification number and then the code may be displayed on the display device. Conceivable.

According to the locking device according to (8), it is possible to provide a locking device that does not require an electronic circuit while ensuring security.
To explain in detail, since the transmitted portion and the power transmitting portion sandwich the contact portion of the non-magnetic material and magnetically attract each other by the permanent magnet, the rotational force that rotates the second shaft is applied to the first shaft. , Transmitted by non-contact. The transmitted rotational force rotates the first shaft, the positions of the notches provided in each of the plurality of discs are matched, and the locking device can be unlocked. That is, in order to unlock the locking device, it is not necessary to supply power or transmit an electric signal from the key device to the locking device. Therefore, the locking device does not require an electronic circuit, the possibility of being destroyed even when a high voltage is applied by the stun gun is reduced, and the risk of the locking device being illegally unlocked is reduced.

Further, since the contact portion forming at least a part of the outer surface of the locking device is interposed between the transmitted portion and the power transmitting portion when the first shaft and the second shaft are aligned coaxially, the first shaft is present. 1 The transmitted portion for rotating the shaft does not appear on the outside of the locking device. Since the transmitted portion does not appear on the outside of the locking device, there is no risk of a third party rotating the dial to unlock it unlike the conventional dial lock, and security is ensured.

According to the locking device according to (9), it is possible to provide a locking device that does not require an electronic circuit while ensuring security.
More specifically, when the key device is placed close to and positioned at the locking device, the concave portion of the transmitted portion and the convex portion of the power transmission portion fit into each other, so that the rotational force that rotates the second shaft is generated. , Is transmitted to the first shaft. The transmitted rotational force rotates the first shaft, the positions of the notches provided in each of the plurality of discs are matched, and the locking device can be unlocked. That is, in order to unlock the locking device, it is not necessary to supply power or transmit an electric signal from the key device to the locking device. Therefore, the locking device does not require an electronic circuit, the possibility of being destroyed even when a high voltage is applied by the stun gun is reduced, and the risk of the locking device being illegally unlocked is reduced.

It is a front view of the safe using a locking device. FIG. 1 is a sectional view taken along the line AA of FIG. (A) is a diagram showing the positional relationship between the disc, the insertion bracket, and the handle member in the locked state, and (b) is a diagram showing the positional relationship between the link mechanism and the handle member in the locked state. (A) is a diagram showing the operation of the insertion fitting in the locked state, and (b) is a diagram showing the operation of the link mechanism in the locked state. (A) is a diagram showing the operation of the insertion fitting in the unlocked state, and (b) is a diagram showing the operation of the link mechanism in the unlocked state. It is a block diagram which shows the structure of a key device. It is an enlarged view around the contact member of FIG. 2 or FIG. 10, and is the figure which shows the state in which a key device is brought into contact with a contact member. It is a front view of a dial and a rotating member. It is a front view of a padlock using a locking device. 9 is a cross-sectional view taken along the line BB of FIG. It is a figure which shows the positional relationship of a disk, a lock metal fitting, a knob member, and a shackle in a locked state. It is a figure which shows the operation of the lock metal fitting and the knob member in the unlocked state. It represents the second embodiment of the locking device. FIG. 3 is a sectional view taken along the line CC of FIG. It is a flowchart which shows the operation of the locking device operation program. It is a block diagram which shows the structure of the key device used for the locking device which concerns on 3rd Embodiment. It is a figure which shows the state which brought the key device into contact with the contact member of the locking device which concerns on 3rd Embodiment. It is a flowchart which shows the operation of the lock device operation program of the lock device which concerns on 3rd Embodiment.

<First Embodiment>
A first embodiment of the locking device of the present invention will be described in detail with reference to the drawings.
As shown in FIG. 1, the locking device 1 according to the first embodiment is used for locking the door 31 of the safe 3, for example. The door 31 is attached to the safe body 32 so as to be openable and closable by the hinge 33, and when the locking device 1 is unlocked by the key device 2 described later, the door 31 can be opened with the hinge 33 as a fulcrum. ..

As shown in FIG. 2, the door 31 has a recess 31a on the outer surface (left side in FIG. 2) of the safe 3 and a cavity 31b inside. The locking device 1 is incorporated in the recess 31a and the cavity 31b.

<About the locking device>
The locking device 1 will be described.
As shown in FIG. 1, the locking device 1 has a key device contact portion 11 and a lock mechanism portion 12.
As shown in FIG. 2, the key device contact portion 11 has a contact member 111 (an example of a contact portion) for contacting the key device 2, and further, a dial portion 112, a non-contact memory 113, and a non-contact memory 113 are contained therein. Has.

The contact member 111 is made of a non-magnetic resin. It is formed in a flat plate shape and forms a part of the outer surface of the door 31 of the safe 3. A positioning portion 111a formed so as to be recessed inward of the safe 3 is provided on a surface of the contact member 111 that forms a part of the outer surface of the door 31, and the positioning portion 111a contacts the contact member 111. Positioning of the key device 2 to be performed. Details of the key device 2 will be described later.

The dial unit 112 includes a dial 114, a dial receiver 115, a first shaft 116, and a plurality of discs 117A to D in parallel.

The dial 114 has a disk shape, and as shown in FIG. 8, a plurality of permanent magnets Ma1 to 12 (an example of a transmitted portion) having a fan shape are arranged at regular intervals on the surface facing the contact member 111. The surfaces facing the contact member 111 are arranged in a circular shape so as to be alternately arranged with S poles and N poles to form a magnetic attraction portion.

The dial receiver 115 is fixed to the recess 31a, and has a disk-shaped dial receiving portion 115a and a tubular shaft tubular portion 115b.
The dial receiving portion 115a is provided with a seating portion 115c on the outer end surface of the safe 3, and the dial 114 is seated on the seating portion 115c.

The barrel portion 115b extends at a right angle from the end surface of the dial receiving portion 115a on the inner side of the safe 3, penetrates the recess 31a of the door 31, and is inserted into the cavity portion 31b. Further, an insertion hole 115d penetrates the barrel portion 115b, and a first shaft 116 is inserted through the insertion hole 115d.

Further, a locking projection 115e is provided on the outer periphery of the barrel portion 115b, and a coil spring 120, which will be described later, is locked. Further, disk-shaped discs 117B to D are attached to the outer periphery of the barrel portion 115b so as to be independently rotatable.

The first shaft 116 has a cylindrical shape, and one end of the safe 3 on the outer side is fixed to the center of the inner end face of the safe 3 of the dial 114. As a result, the dial 114 can rotate about the axis of the first shaft 116. Further, the other end of the first shaft 116 projects from the end of the barrel portion 115b, and the tip is coupled to the center of the disk-shaped disc 117A. As a result, as the dial 114 is rotated, the disc 117A is also rotated. The amount of rotation of the dial 114 and the amount of rotation of the disc 117A are equal.

The disc 117A is a drive disc for rotating the discs 117B to D, and a protrusion P1 for rotating the discs 117B to D projects from the surface of the disc 117A facing the disc 117B toward the disc 117B. There is. The protrusion P1 causes the disc 117A, which is rotated according to the rotation of the dial 114, to rotate the discs 117B to D.

The disks 117A to D are all coaxially arranged in parallel, and each of the disks 117A to D is provided with a notch 118 (see FIGS. 3A, 4A, and 5A). There is. The notch 118 is a defect portion provided at one location on the outer peripheral portion of each of the discs A to D.

As shown in FIG. 2, protrusions Pa2 and Pb2 are formed on the disk 117B adjacent to the disk 117A. The protrusion Pa2 projects from one of the surfaces of the disc 117B facing the disc 117A toward the disc 117A side. The protrusion Pb2 projects from one of the surfaces of the disc 117B facing the disc 117C toward the disc 117C side.

As shown in FIG. 2, protrusions Pa3 and Pb3 are formed on the disk 117C adjacent to the disk 117B. The protrusion Pa3 projects from one of the surfaces of the disc 117C facing the disc 117B toward the disc 117B side. The protrusion Pb3 projects from one of the surfaces of the disc 117C facing the disc 117D toward the disc 117D side.

As shown in FIG. 2, the protrusion Pa4 is formed on the disc 117D adjacent to the disc 117C. The protrusion P a 4 projects from one of the surfaces of the disc 117D facing the disc 117C toward the disc 117C side.

When the dial 114 is rotated about the axis of the first shaft 116, the disk 117A is rotated according to the rotation. The disc 117A is independently rotated until the protrusion P1 of the disc 117A comes into contact with the protrusion Pa2 of the disc 117B. When the protrusion P1 of the disc 117A comes into contact with the protrusion Pa2 of the disc 117B, the protrusion P1 of the disc 117A urges the disc 117B, so that the disc 117B is rotated according to the rotation of the disc 117A.

The disc 117B is rotated independently of the disc 117C until the protrusion Pb2 of the disc 117B contacts the protrusion Pa3 of the disc 117C. When the protrusion Pb2 of the disc 117B comes into contact with the protrusion Pa3 of the disc 117B, the protrusion Pb2 of the disc 117B urges the disc 117C, so that the disc 117C is rotated according to the rotation of the disc 117B.

The disc 117C is rotated independently of the disc 117D until the protrusion Pb3 of the disc 117C comes into contact with the protrusion Pa4 of the disc 117D. When the protrusion Pb3 of the disc 117C comes into contact with the protrusion Pa4 of the disc 117D, the protrusion Pb3 of the disc 117C urges the disc 117D, so that the disc 117D is rotated according to the rotation of the disc 117C.

By rotating the dial 114 in a predetermined rotation direction, a predetermined number of rotations, and a predetermined rotation angle, the discs 117A to D are rotated, and the positions of the notches 118 provided in each of the discs 117A to D match. When the positions of the notches 118 match, the unlocking operation can be performed.

An annular washer 119 is interposed between the disks 117A to D, and each is inserted into the barrel portion 115b. Further, the coil spring 120 is arranged between the disc 117D and the locking portion 115e, and urges the discs 117B to D toward the disc 117A side. The washer 119 maintains the distance between the discs 117A to D urged by the coil spring 120 and facilitates the rotation of the discs 117A to D.

The non-contact memory 113 stores unlocking authority information for unlocking the locking device 1. The unlocking authority information refers to, for example, an identification number unique to the locking device 1 and a code for unlocking (that is, the rotation direction, the number of rotations, and the rotation angle of the dial 114).

The identification number is used for collating with the key device 2 and determining whether or not the lock device 1 can be unlocked with the key device 2.
The reference numerals are information necessary for matching the notches 118 of the discs 117A to D with the unlocking positions. Specifically, for example, the dial 114 is turned four times in the clockwise direction to stop the dial 114 at a predetermined rotation angle, and then the dial 114 is turned three times in the counterclockwise direction at a predetermined angle. By stopping the dial 114, turning the dial 114 twice in the clockwise direction, and stopping the dial 114 at a predetermined angle, each notch 118 of the discs 117A to D coincides with the unlocking position. For example, these rotation directions and the like are stored as codes.

As shown in FIG. 2, the lock mechanism portion 12 includes a handle member 121, an insertion fitting 122, and a link mechanism 123.

The handle member 121 includes a handle 121a and a rotating shaft 121b, the rotating shaft 121b is inserted into the through hole 31c of the door 31, and the tip of the rotating shaft 121b can rotate to the bearing 31d of the door 31. The handle member 121 can be rotated around the rotation shaft 121b by the handle 121a. 3 (a) and 3 (b) show the initial position of the handle 121a, and FIGS. 5 (a) and 5 (b) show the rotation completion position of the handle 121a.

The insertion fitting 122 is coupled to the rotation shaft 121b so as to rotate integrally with the rotation of the handle member 121.

The insertion fitting 122 includes an insertion piece 122a, and when the handle 121a is rotated clockwise, the insertion fitting 122 also rotates clockwise accordingly, and the insertion piece 122a moves toward the disks 117A to D. However, as shown in FIG. 4A, when the notches 118 of the discs 117A to D do not match the unlocking positions, the insertion piece 122a hits at least one outer edge of the discs 117A to D. , The rotation of the insertion bracket 122 is restricted. This limits the rotation of the handle member 121.

Here, the unlocking position is a position where the insertion piece 122a can be inserted into the notch 118, and when the unlocking position is matched, the positions of the notches 118 of the discs 117A to D are aligned and the insertion piece 122a can be inserted. It means to be in a state. For example, FIG. 5A shows a state in which each notch 118 of the discs 117A to D coincides with the unlocking position, and the insertion fitting 122 rotates to a position where the insertion piece 122a is inserted into the notch 118. It is possible. In this state, the rotation of the handle member 121 is not restricted until the insertion piece 122a is inserted into the notch 118, and the handle 121a can be rotated to the rotation completion position.

The link mechanism 123 includes a link plate 124 and a pair of lot rods 125A and 125B.

The link plate 124 is a hook-shaped flat plate, is arranged between the insertion fitting 122 and the bearing 31d, and is coupled to the rotating shaft 121b. As a result, as the handle 121a rotates, the link plate 124 also rotates integrally around the rotation shaft 121b. Then, as shown in FIG. 3B, lot rods 125A and 125B are diagonally connected to the link plate 124. Each of the lot rods 125A and 125B has rotating shafts 126A and 126B, and can rotate around the rotating shafts 126A and 126B.

When the locking device 1 is in the locked state, as shown in FIGS. 2 and 3B, the lot rod 125A projects from the lock hole 31e of the door 31 to the outside of the door 31, and the lock groove 32a of the safe body 32 It is inserted in. Further, the lot rod 125B protrudes from the lock hole 31f of the door 31 to the outside of the door 31 and is inserted into the lock groove 32b of the safe body 32. This state is the locked state of the door 31, and the door 31 cannot be opened.

When the notches 118 of the disks 117A to D coincide with the unlocking position, the handle 121a can be rotated to the rotation completion position. Together with the rotation of the handle 121a, the link plate 124 also rotates around the rotation shaft 121b. As the link plate 124 rotates, the lot rods 125A and 125B are pulled inward of the door 31 and retracted from the lock grooves 32a and 32b as shown in FIG. 5B. As a result, the door 31 is unlocked and the door 31 can be opened.

On the other hand, when the notches 118 of the discs 117A to D do not match the unlocking positions, as described above, the insertion piece 122a of the insertion fitting 122 is moved by at least one of the discs 117A to D. By being restricted, the rotation of the insertion fitting 122 is restricted, and the handle member 121 cannot be rotated, so that the rotation of the link plate 124 is also restricted. Therefore, as shown in FIG. 4B, the lot rods 125A and 125B cannot be completely retracted from the lock grooves 32a and 32b, and the locked state of the door 31 is not released. Therefore, the door 31 cannot be opened.

<About the key device>
Next, the key device 2 will be described.
As shown in FIG. 7, the key device 2 is a device capable of unlocking or locking the locking device 1 by contacting the contact member 111 of the locking device 1.

The key device 2 has a rotating member 26, a second shaft 27, a motor 22 (an example of a driving unit), an encoder 23, and a reading unit 24 (an example of an authority information acquisition means) inside a box-shaped case 28. ) And. Further, as shown in FIG. 6, the key device 2 includes a control unit 21, and the motor 22, the encoder 23, and the reading unit 24 are electrically connected to the control unit 21. In FIG. 7, the display of the control unit 21 is omitted, and accordingly, the electrical circuits of the control unit 21, the motor 22, the encoder 23, and the reading unit 24 are also omitted. ..

Further, the key device 2 includes a battery 25, and the battery 25 supplies power to the control unit 21. Assuming that the locking device 1 has a battery, for example, when the object to be locked is in a remote mountainous area, it is not easy to manage the remaining amount of the battery, and when trying to unlock the battery, the battery is consumed and cannot be unlocked. Things can happen. However, if the portable key device 2 includes the battery 25, the remaining amount of the battery can be easily managed. For example, the battery 25 may be a rechargeable battery, and when the key device 2 is not used, it may be stored in a key management box (an example of a key management device), and when it is stored in the key management box, the battery 25 may be charged. It is possible.

The case 28 is provided with a positioning protrusion 28a on a surface that comes into contact with the contact member 111 of the locking device 1. The key device 2 is positioned by fitting the positioning protrusion 28a with the positioning portion 111a provided on the contact member 111.

The rotating member 26 has a disk shape, and as shown in FIG. 8, a plurality of permanent magnets Mb1 to 12 (an example of a power transmission unit) having a fan shape are formed on the surface facing the contact member 111. , The surfaces facing the contact member 111 are arranged in a circle at regular intervals so as to be alternately arranged at the S pole and the N pole to form a magnetic attraction portion.

When the key device 2 is brought into contact with the contact member 111 and positioned, the rotating member 26 is coaxially and opposed to the dial 114 with the contact member 111 in between. Since the permanent magnets Ma1 to 12 of the dial 114 and the permanent magnets Mb1 to 12 of the rotating member 26 are attracted to each other, the N poles of the permanent magnets Ma1 to 12 of the dial 114 and the permanent magnets 26 of the rotating member 26 are permanently attracted to each other. The S poles of the magnets Mb1 to 12 are located opposite to each other with the contact member 111 interposed therebetween, and the S poles of the permanent magnets Ma1 to 12 of the dial 114 and the N poles of the permanent magnets Mb1 to 12 of the rotating member 26 are contact members. They are located opposite each other with 111 in between. Therefore, when the rotating member 26 rotates, the dial 114 rotates in accordance with the rotation of the rotating member 26 due to magnetic attraction between the permanent magnets Ma1 to 12 and the permanent magnets Mb1 to 12.

The second shaft 27 has a cylindrical shape, and one end of the safe 3 on the outer side is fixed to the center of the inner end surface of the key device 2 of the rotating member 26. As a result, the rotating member 26 can rotate about the axis of the second shaft 27. Further, a disk-shaped detection plate 232 constituting the encoder 23 and a gear 271 are coupled to the other end of the second shaft 27. When the key device 2 is brought into contact with the contact member 111 and positioned, the second shaft 27 is positioned coaxially with the first shaft 116.

The motor 22 includes a rotating shaft 221 and a gear 222 is coupled to the tip of the rotating shaft 221. The gear 222 meshes with the gear 271, and the rotation of the rotating shaft 221 of the motor 22 causes the second shaft 27 and the rotating member 26 coupled to the second shaft 27 to rotate. Then, by switching the rotation direction of the rotation shaft 221, the rotation direction of the rotation member 26 is switched.

The encoder 23 is, for example, a general rotary encoder, and includes a detection unit 231 including a light source and a light receiving element, and a detection plate 232 that transmits or blocks light emitted from the light source. As a result, the rotation direction, the number of rotations, and the rotation angle of the rotation shaft 221 of the motor 22 are controlled. By controlling the rotation of the rotation shaft 221 of the motor 22, the rotation direction, the number of rotations, and the rotation angle of the rotation member 26 driven by the motor 22 are controlled.

When the reading unit 24 is close to the non-contact memory 113, the reading unit 24 reads the unlocking authority information stored in the non-contact memory 113. When the key device 2 is brought into contact with the contact member 111 and positioned, the reading unit 24 is positioned so as to face the non-contact memory 113 with the contact member 111 interposed therebetween.

The control unit 21 includes a CPU 211, a ROM 212, a RAM 213, and a storage unit 214. The ROM 212 stores a locking device operation program 212a for unlocking or locking the locking device 1. The CPU 211 controls the operation of the motor 22 while temporarily storing data in the RAM 213 according to the locking device operation program 212a while receiving power from the battery 25.

The storage unit 214 stores the identification number of the lock device 1 that can be unlocked by the key device 2, and also determines whether the lock device 1 was unlocked when the latest lock device operation program 212a was executed. I remember if I went. If it is memorized that the unlocking operation has been performed, the locking operation is performed when the next locking device operation program 212a is executed. On the other hand, if it is memorized that the locking operation has been performed, the unlocking operation is performed when the next locking device operation program 212a is executed.

The identification number may be stored in the storage unit 214 in advance, or may be information given from the key management box. For example, the key device 2 is stored in the key management box when not in use, and when the key device 2 is taken out from the key management box for use, the identification number is stored in the key device 2. In the key management box, the usage history of the key device 2 can be easily managed, and security is ensured.

Further, it is not always necessary to use a key management box. For example, a communication unit capable of wireless communication is provided in the key device 2, and an identification number is assigned to the key device by wireless connection from a mobile terminal (smartphone, tablet, etc.) as the key management device. It may be transmitted to 2 and stored in the storage unit 214.

<Action of locking device>
The locking device 1 having the above configuration operates as follows.
First, a case where the lock device 1 is unlocked by using the key device 2 will be described.

The key device 2 is brought into contact with the contact member 111 of the locked device 1 in the locked state. At this time, the positioning protrusion 28a of the key device 2 is fitted to the positioning portion 111a of the contact member 111 to position the key device 2.

When the key device 2 is positioned, the reading unit 24 is positioned so as to face the non-contact memory 113 with the contact member 111 interposed therebetween, and reads the unlocking authority information stored in the non-contact memory 113. When the reading unit 24 reads the unlocking authority information, the CPU 211 reads the locking device operation program 212a from the ROM 212 and executes it.

The CPU 211 authenticates the identification number among the read unlocking authority information (S11). If it is determined that the identification number is the same as the identification number stored in the storage unit 214 of the key device 2 (S11: YES), then the CPU 211 unlocks the lock device 1 when the latest lock device operation program 212a is executed. Inquires to the storage unit 214 whether the locking operation has been performed or the locking operation has been performed (S12). As a result of the inquiry, when it is determined that the CPU 211 has performed the locking operation of the locking device 1 when the latest locking device operation program 212a is executed (S12: YES), the CPU 211 is among the unlocking authority information read by the reading unit 24. The motor 22 is operated according to the information on the rotation direction, the number of rotations, and the rotation angle of the dial 114 (S13). The rotation direction, the number of rotations, and the rotation angle of the rotation shaft 221 of the motor 22 are controlled by the encoder 23. As a result, the rotation of the rotating member 26 is controlled to a predetermined rotation direction, a predetermined number of rotations, and a predetermined rotation angle for unlocking the locking device 1.

Since the permanent magnets Mb1 to 12 of the rotating member 26 and the permanent magnets Ma1 to 12 of the dial 114 are attracted to each other, the dial 114 moves in a predetermined rotation direction in accordance with the rotation of the rotating member 26. It is rotated to a predetermined rotation speed and a predetermined rotation angle, and the positions of the notches 118 of the disks 117A to D are matched.

When the operation of the motor 22 is completed, the storage unit 214 stores that the unlocking operation of the locking device 1 has been performed (S14), and the locking device operation program 212a is terminated. By storing in the storage unit 214 that the unlocking operation has been performed, the next time the key device 2 is brought into contact with the locking device 1, in S11, the locking device 1 is executed when the latest locking device operation program 212a is executed. It will be determined that the unlocking operation has been performed (S12: NO).

After the unlocking operation is completed, the door 31 of the safe 3 can be opened by rotating the handle 121a to the rotation completion position.

Next, a case where the locking device 1 is locked by using the key device 2 will be described.
First, the door 31 of the safe 3 is closed, and the handle 121a is returned to the initial position. Then, the key device 2 is brought into contact with the contact member 111 of the locking device 1. At this time, the positioning protrusion 28a of the key device 2 is fitted to the positioning portion 111a of the contact member 111 to position the key device 2.

When the key device 2 is positioned, the reading unit 24 is positioned so as to face the non-contact memory 113 with the contact member 111 interposed therebetween, and reads the unlocking authority information stored in the non-contact memory 113. When the reading unit 24 reads the unlocking authority information, the CPU 211 reads the locking device operation program 212a from the ROM 212 and executes it.

The CPU 211 authenticates the identification number among the read unlocking authority information (S11). If it is determined that the identification number is the same as the identification number stored in the storage unit 214 of the key device 2 (S11: YES), then the CPU 211 unlocks the lock device 1 when the latest lock device operation program 212a is executed. Inquires to the storage unit 214 whether the locking operation has been performed or the locking operation has been performed (S12). As a result of the inquiry, when it is determined that the CPU 211 has performed the unlocking operation of the locking device 1 when the latest locking device operation program 212a is executed (S12: NO), the CPU 211 drives the motor 22 and moves the rotating shaft 221 in one direction. Rotate for a few seconds (S15). As a result, the rotating member 26 is rotated in one direction for several seconds.

Since the permanent magnets Mb1 to 12 of the rotating member 26 and the permanent magnets Ma1 to 12 of the dial 114 are attracted to each other, the dial 114 moves in one direction for several seconds in accordance with the rotation of the rotating member 26. It is rotated. As a result, the positions of the notches 118 of the discs 117A to D that match the unlocking positions are inconsistent. As a result, the rotation of the handle 121a is restricted, and the door 31 cannot be opened.

When the operation of the motor 22 is completed, the storage unit 214 stores that the locking operation of the locking device 1 has been performed (S16), and the locking device operation program 212a is terminated. By storing that the locking operation has been performed in the storage unit 214, the next time the key device 2 is brought into contact with the locking device 1, the locking device 1 is locked when the latest locking device operation program 212a is executed in S11. It will be determined that the operation has been performed (S12: YES).

In addition, in the authentication of the identification number both when unlocking and locking the locking device 1 by using the key device 2. If it is determined that the identification number is not the same as the identification number stored in the storage unit 214 of the key device 2 (S11: NO), an error notification is performed (S17), and the locking device operation program 212a ends.

Further, in the above embodiment, the storage unit 214 of the key device 2 is made to store that the locking operation of the locking device 1 has been performed and that the locking operation of the locking device 1 has been performed (in FIG. 15). S14, S16), it is determined whether or not the locking device 1 is locked (S12 in FIG. 15), but the reading unit 24 of the key device 2 can write information to the non-contact memory 113. As an antenna coil for read / write, the non-contact memory 113 stores whether the unlocking operation or the locking operation has been performed, and based on the stored information, determines whether or not the locking device 1 has been locked. May be done.

<Modification example of locking device>
The locking device of the present invention can also be used as a locking mechanism for, for example, a padlock 5, as in the locking device 4 shown in FIG. The padlock 5 can pull the shackle 51 up to the unlocked position when the locking device 4 is unlocked by the key device 2.

The shackle 51 is formed in a U shape, and one end (not shown) is held by the main body 52 of the padlock 5 so as to be vertically movable. A constricted portion 51a (see FIGS. 10 to 12) is provided at the other end portion, and when the constricted portion 51a engages with the lock metal fitting 422 described later, the padlock 5 is locked.
The main body 52 has a recess 52a on the front surface (left side in FIG. 10) and a cavity 52b inside. The locking device 4 is incorporated in the recess 52a and the cavity 52b.

<About the locking device>
The locking device 4 will be described.
The locking device 4 is provided on the main body 52, and has a key device contact portion 11 and a lock mechanism portion 42 as shown in FIG. The key device contact portion 11 has the same configuration as that of the first embodiment described above.

As shown in FIG. 10, the lock mechanism portion 42 has a knob member 421 and a lock metal fitting 422.
The knob member 421 includes a knob 421a and a rotation shaft 421b. The rotating shaft 421b is inserted into the holding hole 52c of the main body 52, and the knob member 421 is rotatably held, and the knob member 421 can be rotated around the rotating shaft 421b by the knob 421a. It has become. FIG. 11 shows the initial position of the knob 421a, and FIG. 12 shows the rotation completion position of the knob 421a.

The lock metal fitting 422 is coupled to the rotation shaft 421b so as to rotate integrally according to the rotation of the knob member 421. The initial position is shown in FIG. 11, and the rotation completion position is shown in FIG.

As shown in FIGS. 11 and 12, the lock metal fitting 422 has a hook shape, and the end portion on the shackle 51 side is provided with a lock hole 422b that engages with the constricted portion 51a of the shackle 51, and is provided on the disc 117A to D sides. An insertion piece 422a is provided at the end of the.

When the lock fitting 422 is in the initial position, the lock hole 422b engages with the constricted portion 51a of the shackle 51 so that the shackle 51a cannot move upward in the drawing, as shown in FIG. This is the locked state of the padlock 5. Then, when the lock metal fitting 422 is rotated to the rotation completion position, as shown in FIG. 12, the constriction portion 51a and the lock hole 422b are disengaged, and the shackle 51a can move upward in the drawing, and the padlock. 5 is in the unlocked state.

When the knob 422a is rotated counterclockwise, the insertion piece 422a also rotates the lock metal fitting 422 counterclockwise, so that the insertion piece 422a moves toward the discs 117A to D. However, as shown in, when the notches 118 of the discs 117A to D do not match the unlocking positions, the insertion piece 422a hits at least one outer edge of the discs 117A to D, and the lock fitting 422 Regulate rotation. As a result, the rotation of the knob member 421 is restricted.

On the other hand, when the notches 118 of the discs 117A to D coincide with the unlocking position, the lock metal fitting 422 can be rotated to the position where the insertion piece 422a is inserted into the notch 118. In this state, the rotation of the knob member 421 is not restricted until the insertion piece 422a is inserted into the notch 118, and the knob 421a can be rotated to the rotation completion position.

The padlock 5 as described above can be unlocked or locked by using the key device 2.
The unlocking operation and the locking operation of the locking device 4 by the key device 2 are the same as those in the first embodiment described above. That is, by contacting and positioning the contact member 111 as shown in FIG. 7, the reading unit 24 reads the unlocking authority information stored in the non-contact memory 113, and the CPU 211 executes the locking device operation program 212a. .. Then, the CPU 211 controls the operation of the motor 22 by the read unlocking authority information and the encoder 23, and rotates the rotating member 26. The rotation of the rotating member 26 rotates the dial 114 via the permanent magnets Ma1 to 12 and the permanent magnets Mb1 to 12, so that the notches 118 of the disks 117A to D are aligned with the unlocking positions, or the notches are notched. From the state where 118 matches the unlocking position to the state where it does not match.

As described above, according to the locking device of the first embodiment,
(1) Locking devices 1 and 4 including a first shaft 116 and a plurality of disks 117A to D coaxially parallel to the first shaft 116, wherein the first shaft 116 rotates about an axis. By being moved, the plurality of disks 117A to D are rotated, and the positions of the notches 118 provided in each of the plurality of disks 117A to D match, so that the locking devices 1 and 4 can be unlocked. In the locking devices 1 and 4 provided with the dial portion 112, the locking devices 1 and 4 can perform the unlocking operation by the key device 2, and the key device 2 provides the unlocking authority information for performing the unlocking operation. The authority information acquisition means (reading unit 24) to be acquired, the second shaft 27 aligned coaxially with the first shaft 116 when the key device 2 is placed close to and positioned with the lock device 1, and the unlock authority information. The second shaft 27 is provided with a drive unit (motor 22) capable of rotating the second shaft 27 about the axis, when the second shaft 27 is aligned coaxially with the first shaft 116. A power transmission unit (permanent magnets Mb1 to 12) for transmitting a rotational force to the first shaft 116 when the second shaft 27 rotates about the axis is provided at the end of the first shaft 116 side. That is, when the first shaft 116 is aligned coaxially with the second shaft 27, the rotational force is transmitted from the power transmission unit (permanent magnets Mb1 to 12) to the end on the second shaft 27 side. It is characterized by having parts (permanent magnets Ma1 to 12) and rotating by the rotational force transmitted to the transmitted parts (permanent magnets Ma1 to 12), so that an electronic circuit is required while ensuring security. It is possible to use locking devices 1 and 4 that do not.

More specifically, when the key device 2 is positioned close to the locking devices 1 and 4, the first shaft 116 and the second shaft 27 are aligned coaxially. Then, when the second shaft is rotated by the drive unit (motor 22) based on the unlocking authority information, the rotational force is applied to the power transmission unit (permanent magnets Mb1 to 12) and the transmitted unit (permanent magnets Ma1 to 12). ) Is transmitted to the first shaft 116 of the locking devices 1 and 4. The first shaft 116 is rotated by the transmitted rotational force, the positions of the notches 118 provided in each of the plurality of discs 117A to D are matched, and the locking devices 1 and 4 can be unlocked. That is, in order to unlock the locking devices 1 and 4, it is not necessary to supply power or transmit an electric signal from the key device 2 to the locking devices 1 and 4. Therefore, the locking devices 1 and 4 do not require an electronic circuit, the possibility of being destroyed even when a high voltage is applied by the stun gun is reduced, and the risk of the locking devices 1 and 4 being illegally unlocked is reduced. To.

(2) In the locking devices 1 and 4 according to (1), the locking devices 1 and 4 include a non-contact memory 113 for storing unlocking authority information, and the authority information acquisition means (reading unit 24) is provided. When the key device 2 is close to and positioned close to the locking devices 1 and 4, it is located facing the non-contact memory 113 and reads the unlocking authority information from the non-contact memory 113. Is characterized by including a control unit 21 for operating a drive unit (motor 22) and a battery 25 for supplying power to the control unit 21 based on the unlocking authority information read by the authority information acquisition means. Therefore, it is possible to use the locking devices 1 and 4 that do not require an electronic circuit while ensuring security.

When the key device 2 is positioned close to the locking devices 1 and 4, the authority information acquisition means (reading unit 24) reads the unlocking authority information from the non-contact memory 113. Then, the control unit 21 that receives the power supply from the battery 25 operates the drive unit (motor 22) based on the unlocking authority information to rotate the second shaft 27. The rotational force is transmitted to the first shaft 116 of the locking devices 1 and 4 by the power transmission unit (permanent magnets Mb1 to 12) and the transmitted unit (permanent magnets Ma1 to 12). The first shaft 116 is rotated by the transmitted rotational force, the positions of the notches 118 provided in each of the plurality of discs 117A to D are matched, and the locking devices 1 and 4 can be unlocked. That is, in order to unlock the locking devices 1 and 4, it is not necessary to supply power or transmit an electric signal from the key device 2 to the locking devices 1 and 4. Therefore, the locking devices 1 and 4 do not require an electronic circuit, the possibility of being destroyed even when a high voltage is applied by the stun gun is reduced, and the risk of the locking devices 1 and 4 being illegally unlocked is reduced. To.
Further, if, for example, the unlocking code is read from the non-contact memory 113 as the unlocking authority information, the possibility that the code will be known to a third party is reduced, so that security is ensured.

(3) In the locking devices 1 and 4 according to (1) or (2), the authority information acquisition means (reading unit 24) is a key management device (for example, a key management box or a computer) that can be connected to the key device 2. Acquiring unlocking authority information from a mobile terminal or the like), the key device 2 is a drive unit (motor 22) based on the unlocking authority information acquired from the key management device by the authority information acquisition means (reading unit 24). A control unit 21 for operating the key unit 21 and a battery 25 for supplying power to the control unit 21 are provided. Therefore, for example, a code for unlocking is obtained from the key management device as unlocking authority information. If this is possible, the risk of the code being known to a third party is reduced, and security is ensured.

(4) In the locking devices 1 and 4 described in (2), the authority information acquisition means (reading unit 24) is a key management device (for example, a key management box, a computer, a mobile terminal, etc.) that can be connected to the key device 2. The unlocking authority information was acquired from the above, and the control unit 21 collated the unlocking authority information acquired from the key management device with the unlocking authority information read from the non-contact memory 113, and succeeded in the collation. Since the drive unit (motor 22) is sometimes operated, the unlocking authority information acquired by the key device 2 from the key management device is collated with the unlocking authority information read from the non-contact memory 113. If the drive unit (motor 22) is operated and the unlocking operation is performed only when the collation is successful, the locking devices 1 and 4 can be unlocked only by the specific key device 2. Will be possible, and security will be further ensured. At this time, as the unlocking authority information, for example, in addition to the code for unlocking, the identification numbers unique to the locking devices 1 and 4 are used to collate the identification numbers, and then the drive unit (motor 22) is based on the code. ) Can be operated.

(8) In the locking devices 1 and 4 according to any one of (1) to (7), the locking devices 1 and 4 are provided with a contact member 111 in order to bring the key device 2 close to each other. , A non-magnetic material, forms at least a part of the outer surface of the locking devices 1 and 4, and is transmitted when the first shaft 116 and the second shaft 27 are aligned coaxially (permanent magnets Ma1 to Ma1). 12) be interposed between the power transmission unit (permanent magnets Mb1-12), and the power transmission unit (permanent magnets Mb1-12) and the transmitted unit (permanent magnets Ma1-12) are made of permanent magnets. The transmitted portion (permanent magnets Ma1 to 12) and the power transmitting portion (permanent magnets Mb1 to 12) are magnetically attracted to each other by the permanent magnets Ma1 to 12 and Mb1 to 12 with the contact member 111 interposed therebetween. As a result, the rotational force when the second shaft 27 rotates about the axis is transmitted to the first shaft 116. Therefore, locking that does not require an electronic circuit while ensuring security. It can be a device.

More specifically, the transmitted portion (permanent magnets Ma1 to 12) and the power transmitting portion (permanent magnets Mb1 to 12) sandwich the non-magnetic contact member 111 and are mutually connected by the permanent magnets Ma1 to 12 and Mb1 to 12. The rotational force that rotates the second shaft 27 is transmitted to the first shaft 116 by non-contact because it is magnetically attracted to the first shaft. The first shaft 116 is rotated by the transmitted rotational force, the positions of the notches 118 provided in each of the plurality of discs 117A to D are matched, and the locking devices 1 and 4 can be unlocked. That is, in order to unlock the locking devices 1 and 4, it is not necessary to supply power or transmit an electric signal from the key device 2 to the locking devices 1 and 4. Therefore, the locking devices 1 and 4 do not require an electronic circuit, the possibility of being destroyed even when a high voltage is applied by the stun gun is reduced, and the risk of the locking devices 1 and 4 being illegally unlocked is reduced. To.

Further, the contact member 111 forming at least a part of the outer surface of the locking devices 1 and 4 is a transmitted portion (permanent magnets Ma1 to 12) when the first shaft 116 and the second shaft 27 are aligned coaxially. Since it is interposed between the power transmission unit (permanent magnets Mb1 to 12), the transmitted parts (permanent magnets Ma1 to 12) for rotating the first shaft 116 appear outside the locking devices 1 and 4. Not. Since the transmitted parts (permanent magnets Ma1 to 12) do not appear on the outside of the locking devices 1 and 4, there is no possibility that a third party will rotate the dial to unlock it unlike the conventional dial lock. , Security is guaranteed.

<Second embodiment>
A second embodiment of the locking device of the present invention will be described with reference to FIGS. 13 and 14 only in differences from the first embodiment. Note that, in FIG. 13, as in FIG. 7, the display of the control unit 21 and the display of the electric circuit accompanying the control unit 21 are omitted.

In the first embodiment, by attracting the permanent magnets Ma1 to 12 and the permanent magnets Mb1 to 12 to each other, the rotational force for rotating the rotating member 26 by non-contact is transmitted to the dial 114. However, in the second embodiment, the locking device 6 and the key device 7 transmit a rotational force by a contact type.

As shown in FIG. 13, the first shaft 127 of the locking device 6 has an insertion groove 127a (an example of a concave portion) formed at an end portion facing the contact member 128. Further, the contact member 128 of the locking device 6 is formed with an insertion hole 128a that penetrates a surface facing the key device 7 and a surface on the first shaft 127 side.

The second shaft 29 of the key device 7 is inserted into the insertion hole 128a when the contact member 128 of the locking device 6 is contacted and positioned, and the insertion portion 29a (convex) is engaged with the insertion groove 127a. An example of the shape part) is formed.

As shown in FIG. 14, the insertion groove 127a is formed in an elongated hole shape, and the insertion portion 29 formed to have substantially the same size as the insertion groove 127a is inserted. Therefore, when the second shaft 29 is rotated by the motor 22, the first shaft 127 also rotates according to the rotation of the second shaft 29. Although not shown, disks 117A to D are arranged in parallel at the end of the first shaft 127 on the side opposite to the contact member 128 side, as in the first embodiment and the second embodiment. Therefore, the first shaft 127 is rotated according to the rotation of the second shaft 29, so that the notches 118 of the discs 117A to D are aligned with the unlocking position or are not matched with each other. be able to.

As described above, according to the locking device of the second embodiment,
(9) In the locking device 6 according to any one of (1) to (7), the transmitted portion includes a concave portion (insertion groove 127a) recessed along the longitudinal direction of the first shaft. The power transmission unit is provided with a convex portion (insertion portion 29a) that can be fitted with the concave portion (insertion groove 127a), and when the key device 7 is placed close to and positioned at the locking device 6. By fitting the convex portion (insertion portion 29a) and the concave portion (insertion groove 127a), the rotational force when the second shaft 29 rotates about the axis is transmitted to the first shaft 127. Therefore, it is possible to make a locking device that does not require an electronic circuit while ensuring security.

More specifically, when the key device 7 is brought close to and positioned with the locking device 6, the concave portion (insertion groove 127a) of the transmitted portion and the convex portion (insertion portion 29a) of the power transmission portion are fitted. Therefore, the rotational force for rotating the second shaft 29 is transmitted to the first shaft 127. The first shaft 127 is rotated by the transmitted rotational force, the positions of the notches 118 provided in each of the plurality of discs 117A to D are matched, and the locking device 6 can be unlocked. That is, in order to unlock the locking device 6, it is not necessary to supply power or transmit an electric signal from the key device 7 to the locking device 6. Therefore, the locking device 6 does not require an electronic circuit, the possibility of being destroyed even when a high voltage is applied by the stun gun is reduced, and the risk of the locking device 6 being illegally unlocked is reduced.

<Third embodiment>
The third embodiment of the locking device of the present invention will be described with reference to FIGS. 16, 17 and 18, only the differences from the first embodiment and the second embodiment. Note that, in FIG. 17, as in FIGS. 7 and 13, the display of the control unit 81, which will be described later, and the display of the electrical circuit accompanying the control unit 81 are omitted.

The locking device has the same configuration as the locking device 1 according to the first embodiment.
The key device 2 according to the first embodiment and the key device 7 according to the second embodiment automatically perform an unlocking operation and a locking operation by a motor 22 controlled by a control unit 21. However, as shown in FIG. 17, the key device 8 in the third embodiment does not have a motor as a drive unit, and the manual dial 83 is a drive unit for manually performing the unlocking operation and the locking operation. have. Further, the key device 8 includes a rotating member 26, a second shaft 87, an encoder 23, and a reading unit 24 inside the box-shaped case 88. Further, as shown in FIG. 16, the key device 8 includes a control unit 81, and the display device 82, the encoder 23, the reading unit 24, and the battery 25 are electrically connected to the control unit 81. ing.

A manual dial 83 is coupled to one end of the second shaft 87, and a rotating member 26 is coupled to the other end as in the key device 2 according to the first embodiment. Permanent magnets Mb1 to 12 are provided on the surface facing the contact member 111.

Further, the detection plate 232 of the encoder 23 is coupled between the manual dial 83 and the rotating member 26 of the second shaft 87, and the detection plate 232 that rotates when the manual dial 83 is rotated. The rotation direction, the number of rotations, and the rotation angle are detected by the detection unit 231 of the encoder 23.

The control unit 81 includes a CPU 811, a ROM 812, a RAM 813, and a storage unit 814. The ROM 812 stores a locking device operation program 812a for unlocking or locking the locking device 1. While receiving power from the battery 25, the CPU 811 temporarily stores data in the RAM 213 according to the locking device operation program 812a, and adjusts the rotation direction, the number of rotations, and the rotation angle of the manual dial 83 detected by the encoder 23. Based on this, the unlocking operation or locking operation is monitored.

The storage unit 814 stores the identification number of the lock device 1 that can be unlocked by the key device 8, and also determines whether the lock device 1 was unlocked when the latest lock device operation program 812a was executed. I remember if I went. If it is memorized that the unlocking operation has been performed, when the next locking device operation program 812a is executed, the display device 82 indicates that the locking should be performed, and the user is rotated by the manual dial 83 to lock the lock. Encourage you to do it. On the other hand, if it is memorized that the locking operation has been performed, when the next locking device operation program 812a is executed, the display device 82 has a sign for unlocking (that is, the rotation direction of the manual dial 83 and the number of rotations). , Rotation angle) is displayed, and the user is notified of the unlocking method of the locking device 1.

The identification number may be stored in the storage unit 814 in advance, but may be information given from the key management box as described in the first embodiment. Further, it is not always necessary to use the key management box. For example, the key device 8 is provided with a communication unit capable of wireless communication, and the identification number is assigned by wireless connection from a mobile terminal (smartphone, tablet, etc.) as the key management device. It may be transmitted to 2 and stored in the storage unit 814.

<Action of locking device>
By using the key device 8 having the above configuration, the locking device 1 operates as follows.
First, a case where the lock device 1 is unlocked by using the key device 8 will be described.

The key device 8 is brought into contact with the contact member 111 of the locked device 1 in the locked state. At this time, the positioning protrusion 88a of the key device 2 is fitted to the positioning portion 111a of the contact member 111 to position the key device 8.

When the key device 8 is positioned, the reading unit 24 is positioned so as to face the non-contact memory 113 with the contact member 111 interposed therebetween, and reads the unlocking authority information stored in the non-contact memory 113. When the reading unit 24 reads the unlocking authority information, the CPU 811 reads the locking device operation program 812a from the ROM 812 and executes it.

The CPU 811 authenticates the identification number among the read unlocking authority information (S21). If it is determined that the identification number is the same as the identification number stored in the storage unit 814 of the key device 8 (S21: YES), then the CPU 811 unlocks the lock device 1 when the latest lock device operation program 812a is executed. The storage unit 814 is inquired as to whether the locking operation has been performed or the locking operation has been performed (S22). As a result of the inquiry, when it is determined that the CPU 811 has performed the locking operation of the locking device 1 when the latest locking device operation program 812a is executed (S22: YES), the CPU 811 is among the unlocking authority information read by the reading unit 24. Information (that is, reference numerals) of the rotation direction, the number of rotations, and the rotation angle of the dial 114 for matching the positions of the notches 118 of the disks 117A to D is displayed on the display device 82 (S26). The user rotates the manual dial 83 based on the information displayed on the display device 82. At this time, since the permanent magnets Mb1 to 12 of the rotating member 26 and the permanent magnets Ma1 to 12 of the dial 114 are attracted to each other, the rotating member 26 that rotates by rotating the manual dial 83 At the same time, the dial 114 is rotated.

Then, the encoder 23 detects the rotation direction, the number of rotations, and the rotation angle of the manual dial 83, and the manual dial 83 rotates in the rotation direction, the number of rotations, and the rotation angle displayed on the display device 82. The CPU 811 is on standby until it is moved (S27: NO). When the manual dial 83 is rotated in the rotation direction, the number of rotations, and the rotation angle displayed on the display device 82 (S27: YES), the CPU 811 determines that the locking device 1 has been unlocked. Then, the storage unit 814 stores that the unlocking operation of the locking device 1 has been performed (S28), and the locking device operation program 812a is terminated.
By storing in the storage unit 814 that the unlocking operation has been performed, the next time the key device 8 is brought into contact with the locking device 1, in S22, the locking device 1 is executed when the latest locking device operation program 812a is executed. It will be determined that the unlocking operation has been performed (S22: NO).

Next, a case where the locking device 1 is locked by using the key device 8 will be described.
First, the key device 8 is brought into contact with the contact member 111 of the locking device 1. At this time, the positioning protrusion 88a of the key device 8 is fitted to the positioning portion 111a of the contact member 111 to position the key device 8.

When the key device 8 is positioned, the reading unit 24 is positioned so as to face the non-contact memory 113 with the contact member 111 interposed therebetween, and reads the unlocking authority information stored in the non-contact memory 113. When the reading unit 24 reads the unlocking authority information, the CPU 811 reads the locking device operation program 812a from the ROM 812 and executes it.

The CPU 811 authenticates the identification number among the read unlocking authority information (S21). If it is determined that the identification number is the same as the identification number stored in the storage unit 814 of the key device 8 (S21: YES), then the CPU 811 unlocks the lock device 1 when the latest lock device operation program 812a is executed. The storage unit 814 is inquired as to whether the locking operation has been performed or the locking operation has been performed (S22). As a result of the inquiry, when it is determined that the CPU 811 has performed the unlocking operation of the locking device 1 when the latest locking device operation program 812a is executed (S22: NO), the CPU 811 displays the locking method on the display device 82. The display of the locking method is, for example, a display in which the manual dial 83 is rotated several times in an arbitrary direction. When the user rotates the manual dial 83 based on this display, the permanent magnets Mb1 to 12 of the rotating member 26 and the permanent magnets Ma1 to 12 of the dial 114 are attracted to each other. The dial 114 is rotated according to the rotation of 26. As a result, the positions of the notches 118 of the discs 117A to D that match the unlocking positions are inconsistent.

Then, the CPU 811 waits until the encoder 23 detects that the manual dial 83 has been rotated (S24: NO). When the manual dial 83 is rotated (S24: YES), the CPU 811 determines that the locking device 1 is locked. Then, the storage unit 814 stores that the unlocking operation of the locking device 1 has been performed (S25), and the locking device operation program 812a is terminated. By storing that the locking operation has been performed in the storage unit 814, the next time the key device 8 is brought into contact with the locking device 1, the locking device 1 is locked when the latest locking device operation program 812a is executed in S22. It will be determined that the operation has been performed (S22: YES).

In the authentication of the identification number, both when the locking device 1 is unlocked and when the locking device 1 is locked by using the key device 8. If it is determined that the identification number is not the same as the identification number stored in the storage unit 814 of the key device 8 (S21: NO), an error notification is given (S29), and the locking device operation program 812a ends.

As described above, according to the locking device of the third embodiment,
(5) In the locking device according to (1), the locking device 1 includes a non-contact memory 113 for storing unlocking authority information, and the key device 8 is used as an authority information acquisition means (reading unit 24). When the lock device 1 is approached and positioned, the key device 8 is located so as to face the non-contact memory 113 and reads unlocking authority information from the non-contact memory 113. The key device 8 includes a display device 82. The unlocking method is displayed based on the unlocking authority information read by the authority information acquisition means (reading unit 24), and the driving unit (manual dial 83) can be manually operated. It is possible to make a locking device that does not require an electronic circuit while ensuring security.

When the key device 8 is positioned close to the locking device 1, the authority information acquisition means (reading unit 24) reads the unlocking authority information from the non-contact memory 113. Then, since the unlocking method based on the unlocking authority information is displayed on the display device 82, the user manually operates the drive unit (manual dial 83) based on the display, and the second shaft 87 Is rotated. The rotational force is transmitted to the first shaft 116 of the locking device 1 by the power transmission unit (permanent magnets Mb1 to 12) and the transmitted unit (permanent magnets Ma1 to 12). The first shaft 116 is rotated by the transmitted rotational force, the positions of the notches 118 provided in each of the plurality of discs 117A to D are matched, and the locking device 1 can be unlocked. That is, in order to unlock the locking device 1, it is not necessary to supply power or transmit an electric signal from the key device 8 to the locking device 1. Therefore, the locking device 1 does not require an electronic circuit, the possibility of being destroyed even when a high voltage is applied by the stun gun is reduced, and the risk of the locking device 1 being illegally unlocked is reduced.
The unlocking method displayed on the display device 82 is, for example, a code for unlocking. If the code is read from the non-contact memory 113, the possibility that the code will be known to a third party is reduced, so that security is ensured.

(6) In the locking device 1 according to (1) or (5), the authority information acquisition means (reading unit 24) is a key management device (for example, a key management box, a computer, a portable terminal) that can be connected to the key device 8. Etc.), the key device 8 is provided with a display device 82, and the authority information acquisition means displays the unlocking method based on the unlocking authority information acquired from the key management device. The drive unit (manual dial 83) can be manually operated.

According to the locking device 1 described in (6), if, for example, a code for unlocking can be obtained from the key management device as unlocking authority information, there is a possibility that the code will be known to a third party. Security is ensured because it is reduced.

(7) In the locking device 1 according to (6), the authority information acquisition means (reading unit 24) is transmitted from a key management device (for example, a key management box, a computer, a mobile terminal, etc.) that can be connected to the key device 8. Acquiring the unlocking authority information, the key device 8 collates the unlocking authority information acquired from the key management device with the unlocking authority information read from the non-contact memory 113, and when the collation is successful. Since the display device 82 is characterized in that the unlocking method is displayed, the unlocking authority information acquired by the key device 8 from the key management device and the unlocking authority information read from the non-contact memory 113 If the unlocking method is displayed on the display device 82 only when the verification is successful, the unlocking method cannot be performed without using a specific key device 8, which is more secure. Will be secured.
At this time, as the unlocking authority information, for example, in addition to the code for unlocking, the identification number unique to the locking device 1 is used, the identification number is collated, and the code is displayed on the display device. Can be considered.

It should be noted that the first embodiment and the second embodiment described above are merely examples, and do not limit the present invention in any way. Therefore, as a matter of course, the present invention can be improved and modified in various ways without departing from the gist thereof.
For example, the contact member 111 is configured to form a part of the outer surface of the door 31, but the entire outer surface of the door may be a contact member.

1 Locking device 2 Key device 21 Control unit 22 Motor (example of drive unit)
24 Reading unit 27 2nd shaft 112 Dial unit 113 Non-contact memory 116 1st shaft 117A to D Disc 118 Notch Ma1-12 Permanent magnet (example of transmitted unit)
Mb1-12 Permanent magnet (example of power transmission unit)

Claims (9)

A locking device including a first shaft and a plurality of discs coaxially arranged in parallel with the first shaft, and the plurality of discs are rotated around the axis of the first shaft. Is rotated, and the positions of the notches provided in each of the plurality of discs match, so that the locking device can be unlocked in the locking device including the dial portion.
The locking device can be unlocked by the key device.
The key device is
An authority information acquisition means for acquiring unlocking authority information for performing the unlocking operation, and
When the key device is approached and positioned close to the locking device, a second shaft that is coaxial with the first shaft and
A drive unit capable of rotating the second shaft about an axis based on the unlocking authority information is provided.
The second shaft is attached to the end on the first shaft side when coaxially aligned with the first shaft, and to the first shaft when the second shaft rotates about an axis. To have a power transmission unit that transmits rotational force,
The first shaft is provided with a transmitted portion to which rotational force is transmitted from the power transmitting portion at an end portion on the second shaft side when aligned coaxially with the second shaft, and the transmitted portion is provided. To rotate by the rotational force transmitted to
A locking device characterized by. In the locking device according to claim 1,
The locking device includes a non-contact memory for storing the unlocking authority information.
The authority information acquisition means is positioned so as to face the non-contact memory when the key device is approached and positioned close to the locking device, and obtains the unlock authority information from the non-contact memory. To read,
The key device includes a control unit that operates the drive unit and a battery that supplies power to the control unit based on the unlocking authority information read by the authority information acquisition means.
A locking device characterized by. In the locking device according to claim 1 or 2.
The authority information acquisition means acquires the unlocking authority information from a key management device that can be connected to the key device.
The key device includes a control unit in which the authority information acquisition means operates the drive unit based on the unlocking authority information acquired from the key management device.
A locking device characterized by. In the locking device according to claim 2.
The authority information acquisition means acquires the unlocking authority information from a key management device that can be connected to the key device.
The control unit collates the unlocking authority information acquired from the key management device with the unlocking authority information read from the non-contact memory, and operates the driving unit when the collation is successful. thing,
A locking device characterized by. In the locking device according to claim 1,
The locking device includes a non-contact memory for storing the unlocking authority information.
The authority information acquisition means is positioned so as to face the non-contact memory when the key device is approached and positioned close to the locking device, and obtains the unlock authority information from the non-contact memory. To read,
The key device includes a display device and displays an unlocking method based on the unlocking authority information read by the authority information acquisition means.
The drive unit can be operated manually.
A locking device characterized by. In the locking device according to claim 1 or 5.
The authority information acquisition means acquires the unlocking authority information from a key management device that can be connected to the key device.
The key device includes a display device, and displays an unlocking method based on the unlocking authority information acquired by the authority information acquisition means from the key management device.
The drive unit can be operated manually.
A locking device characterized by. In the locking device according to claim 5,
The authority information acquisition means acquires the unlocking authority information from a key management device that can be connected to the key device.
The key device collates the unlocking authority information acquired from the key management device with the unlocking authority information read from the non-contact memory, and when the collation is successful, the display device displays the information. Displaying the unlocking method,
A locking device characterized by. In the locking device according to any one of claims 1 to 7.
The locking device is provided with a contact portion to bring the key device close to the key device.
The contact portion is made of a non-magnetic material, forms at least a part of the outer surface of the locking device, and when the first shaft and the second shaft are coaxially arranged, the transmitted portion and the said portion. Intervening between the power transmission unit,
The power transmission unit and the transmission unit are made of permanent magnets.
The transmitted portion and the power transmitting portion are magnetically attracted to each other by the permanent magnet with the contact portion interposed therebetween.
By the magnetic adsorption, the rotational force when the second shaft rotates about the axis is transmitted to the first shaft.
A locking device characterized by. In the locking device according to any one of claims 1 to 7.
The transmitted portion includes a concave portion recessed along the longitudinal direction of the first shaft.
The power transmission portion is provided with a convex portion that can be fitted with the concave portion.
When the key device is brought close to and positioned with the locking device, the convex portion and the concave portion are fitted to each other, so that the second shaft rotates about the axis. The force is transmitted to the first shaft,
A locking device characterized by.

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