JPS628585B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a novel locking device that can be unlocked using a card.

Conventional locking devices installed on opening/closing devices such as entrance/exit doors, deposit boxes, consignment deposit boxes, etc. usually require a key to be unlocked.

That is, the key was handed over in advance to the person using the entrance/exit door, deposit box, consignment deposit box, etc., and the key was then unlocked.

However, if the key for unlocking the lock is lost or stolen, the new owner of the key, not the authorized user, can unlock the lock. There was a problem that it was easy to lock the door.

For this reason, there are devices in which the opening/closing device is unlocked using a card that stores a code code. This opening/closing device can be unlocked when the code stored on the card matches the code entered by the user by pressing a button, etc., so even if the card is lost or stolen, However, anyone who does not know the code of the card cannot unlock it.

However, the card-based unlocking device has the following problems. In other words, with a lock that uses a key, you cannot remove the key from the lock unless you open the entrance door, deposit box door, etc., and then close and lock the door after completing your errand. You won't forget to lock the door, but with a card-based door, you can pull the card out of the card slot without locking the door, and it's easy to forget to lock the door. , does not require an electrical system, but
Since a card is required, the lock cannot be unlocked during a power outage.

In view of the above points, the present invention is a locking device using a card, which is more secure than a locking device using a key, prevents forgetting to lock the door, and can also be used in the event of a power outage. It is an object of the present invention to provide a locking device using an advantageous card, and for this purpose, the present invention provides a card having a notch formed from one end edge and having a through hole, and a card having a through hole formed in the notch at one end thereof, and a locking device that is inserted into the notch of the card when the card is inserted. A compatible card stopper, a switch that opens and closes by engaging and disengaging the card when the card is inserted or pulled out, a card reading device that confirms whether the card is correct or not, and the card reading device and the above switch work together to prevent rotational movement. An immovable device having a rotary solenoid that operates only in the unlocking direction, and a long hole into which a pin protruding from the rotary solenoid is loosely inserted and which engages the circumferential surface and inner edge of the pin only when the rotary solenoid operates in the unlocking direction. The rotary solenoid has an operation plate with one end rotatably supported on a shaft, a lock plate that slides in conjunction with the rotation of the operation plate, and a card lock pin that is inserted into a through hole of the card. It consists of a card lock member that moves back and forth as the lock rotates, and the lock plate is associated with the bolt of the lock, and when the door is closed, the rotary solenoid is rotated back from the unlocked position to its original position, and the lock is opened. The card is characterized by an automatic lock, and the card is provided with a notch in which a part of the side edge is cut out, and the side edge of the card on which the notch is formed comes into contact with the uncut side edge surface of the card. A starting arm is rotatably supported by a stationary part of the device when inserted or pulled out, and one end is removably connected to the starting arm, and the other end is rotatably supported to one end of a replacement plate described later. A locking plate that slides in conjunction with the rotation of the starting arm when engaged with the starting arm, and a locking plate that engages with the leading edge of the inserted card and can be rotated when the card is inserted or pulled out; A locking plate locking member pivotally supported on an immovable part of a device that prevents or allows sliding of the locking plate by movement, and an end opposite to the end rotatably supported by the locking plate to the lock plate. an exchange plate which is rotatable and pivotally supported to allow the locking plate to slide, and whose substantially central portions at both ends are pivotally supported in a non-movable part of the device; the card stopper, the switch, the card reading device; It consists of a rotary solenoid, an operation plate, and a card lock member, and is associated with the locking plate and the bolt of the lock, and the rotary solenoid is returned to its original position from the unlocked position by opening and closing the door, and the starting arm of the locking plate is The lock is electrically engaged and engaged when no electricity is applied, and the lock is an automatic lock.

The details of the locking device of the present invention will be explained below based on the preferred embodiment shown in the drawings. This embodiment shows a deposit box installed in the wall of a building of a financial institution such as a bank, which is equipped with the locking device of the present invention.

In the figure, reference numeral 1 denotes a card for unlocking the locking device of the present invention, which is held in advance by a person using the deposit box equipped with the device of the present invention, and is inserted through the insertion slot 2 to unlock the safe. As shown in FIG. 8, the card 1 has a notch 3 extending from one edge toward the center of the card 1, and a through hole 4 approximately in the center through which a card lock pin (described later) can be inserted. There is. 5 in the figure is the card stopper, and the above card 1
It is fixed to the device so that it fits into the notch 3 when the card 1 is inserted, and it goes without saying that it will not fit unless the card 1 has the regular notch 3. Also,
The card 1 is equipped with a magnetic stripe 7 in which a code code is stored in advance.

When the card 1 is inserted, if the card 1 is a regular one, the device is provided with a micro switch 6 that comes into contact with the front end of the card 1 and closes it. This micro switch 6 opens when the card 1 is pulled out, that is, it is configured to open and close by engaging and disengaging from the card 1 when the card 1 is inserted and pulled out.

8 in the figure is a rotary solenoid that rotates.
A pin 9 is provided to protrude, and when the microswitch is closed, the code stored in the magnetic stripe 7 of the card 1 matches the code entered by the user by pressing a button (not shown). i.e. card 1
It operates only in the unlocking direction by cooperating with a card reader 10 (shown in the second figure) which operates by confirming the correctness of the lock. In addition, in FIGS. 1 and 5,
The rotation movement in the clockwise direction in the figure is the unlocking direction.

In the figure, reference numeral 11 denotes an operation plate, one end of which is rotatably supported by a shaft 12 on a stationary part of the device, and an elongated hole 13 is provided approximately in the center into which a pin 9 protruding from the rotary solenoid 8 is loosely inserted. When the rotary solenoid 8 is on standby, that is, when it is not unlocked, the elongated hole 13 has an inner edge that engages the lower end circumferential surface of the pin 9 of the rotary solenoid 8, and when the rotary solenoid 8 moves in the unlocking direction. The operating plate 11 is pressed down while maintaining the engagement, and when the operating plate 11 is in the depressed state, the operating plate 11 causes the rotary solenoid 8 to return to its original position, that is, to the standby state by the spring elasticity. 11 has a shape sufficient to allow the operation to be carried out while maintaining the depressed position.

A card lock member 14 is linked to the pin 9 of the rotary solenoid 8, which moves back and forth as the solenoid moves in the unlocking direction and rotates to return to its original position. The card lock member 14 is movable up and down in FIG. That is, as the card lock member 14 reciprocates, if the inserted card 1 is a regular one, the card lock pin 15 will be inserted into the through hole 4 of the card 1, and therefore the card will pass through the normal operation described below. This will prevent the card 1 from being pulled out from the insertion slot 2 unless it is later.

16 in the figure is a locking plate, and the long hole 1 is in the operation plate 11.
3 and is connected to the opposite end of the shaft 12. In this connection, a support pin 18 protruding from the locking plate 16 is loosely inserted into a long support hole 17 provided at the end of the operation plate 11.
Therefore, the locking plate 16 is configured to be able to slide as the operation plate 11 rotates.

In the figure, reference numeral 21 denotes a starting arm, which is rotatably supported by a shaft 22 on a stationary part of the device. This rotation of the starting arm 21 is carried out by contacting the side end surface of the card 1 inserted through the insertion slot 2. Therefore, a part of the starting arm 21 is bent and formed, and the side end surface of the card 1 comes into contact with this bent portion. It's like this. Then, the starting arm 2 is moved in the direction in which the compression coil spring 23 constantly contacts the card 1.
1 is given a restoring force so that it can rotate. Therefore, when the card 1 is inserted, the starting arm 21 rotates clockwise against the restoring force of the compression coil spring 23 to the position shown by the dashed line in FIG. If you pull it out, it will rotate counterclockwise to the position shown by the solid line.

Reference numeral 24 in the figure is a locking plate, one end of which can be engaged with and detached from the starting arm 21 by positioning and retracting the rotation range of the starting arm 21, and the other end is a replacement plate described later. They are pivotally supported 25 so as to be rotatable with respect to each other. That is, the engaging and disengaging operation with the starting arm 21 is performed by rotation about the shaft 25. Further, when one end of the locking plate 24 is engaged with the starting arm 21, the locking plate 24 is connected to the starting arm 21.
It can be slid by rotating. In this embodiment, a long hole 26 is formed in the locking plate 24, and the long hole 26
Both ends are supported by the shaft 25 and a rotary solenoid 28 having a pin 27 that is loosely inserted therein, and the pin 27 is movable within the elongated hole 26 to enable the locking plate 24 to slide. Further, the rotary solenoid 28 disengages the locking plate 24 from the starting arm 21 by rotating clockwise in FIG. When it moves, it can engage with the starting arm 21, that is, it returns to its original position. And the locking plate 2
4 is formed with a notch 29 that can be engaged with and disengaged from the engagement plate lock member 30.

The locking plate locking member 30 is a plate material having a substantially U-shape, and has a protrusion 31 that projects downwardly at the upper end of the U-shape. The side end faces are U-shaped outwardly inclined slopes 32. Then, the protrusion 31 occupies the insertion movement area of the card 1 to be inserted, and the U-shaped lower end engages with the notch 29 of the locking plate 24 so that it is always positioned by its own weight. When the card 1 is inserted, the leading edge of the card 1 comes into contact with the inclined surface 32 of the protrusion 31, and by further inserting the card 1, the U-shaped inside of the locking plate locking member 30 is inserted. The locking plate locking member 3 is configured to receive the card 1 at the
0 is rotatably supported by a shaft 33 on the stationary part of the device.
Moreover, due to this rotational movement, the locking plate locking member 30
and the notch 29 of the locking plate 24 are disengaged from each other. In other words, the above-described sliding movement of the locking plate 24 accompanying the rotation of the starting arm 21 is prevented when the locking plate locking member 30 and the notch 29 of the locking plate 24 are engaged. Therefore, when the engagement is released, the sliding movement is allowed.

Even when the starting arm 21 and the locking plate 24 are in an engaged state, that is, even when the locking plate 24 is in a state where it can slide as the starting arm 21 rotates, the locking plate locks. Since this sliding movement is prevented by the engagement of the member 30 with the locking plate 24, in order to allow this sliding movement, the locking plate lock must be closed before the side end surface of the card 1 comes into contact with the starting arm 21. The engagement of the member 30 with the locking plate 24 must be released. Therefore, the side edge of the card 1 on the side that comes into contact with the starting arm 21 is cut out to an appropriate length from the tip of the card 1 to form a notch 34. This notch 34
When inserting card 1, first check the length of card 1.
After the distal end edge of the locking plate 30 engages with the protrusion 31 of the locking plate locking member 30 and releasing the engagement of the locking plate locking member 30 with the locking plate 24, that is, the sliding movement of the locking plate 24 is allowed. The length may be such that the side edge of the portion of the card 1 other than the notch 34 comes into contact with the starting arm 21. Furthermore, if the end of the locking plate locking member 30 provided with the protrusion 31 is sufficiently extended toward the insertion slot 2, the leading edge of the card 1 will push up the protrusion 31 and prevent the locking plate 24 from sliding. After allowing
It is also possible to start the contact between the side end surface of the card 1 and the starting arm 21 from the leading edge of the card 1, and in this case, of course, it is not necessary to form the notch 34.

In the figure, reference numeral 35 denotes an exchange plate which is rotatably supported 25 relative to the locking plate 24, and whose substantially central portion is rotatably supported 36 to a stationary part of the device. and pivot support 2
An elongated hole 37 is formed at the end opposite to the fifth end, and the support pin 18 protruding from the locking plate 16 is loosely inserted into the elongated hole 37. That is, the support pin 18 is movable within the elongated hole 37, so that the locking plate 1 can be rotated about the shaft 36 of the exchange plate 35.
6 is designed to be able to slide. Therefore, the support pin 18 of the locking plate 16 is connected to the long support hole 17 formed in the operation plate 11 and the long hole 3 of the exchange plate 35.
7 are inserted consecutively.

In the figure, reference numeral 41 indicates a lock bar, which is associated with the locking plate 16. That is, by sliding the locking plate 16 in the unlocking direction, the bolt 41 comes off, allowing the input door 42 to be opened. This embodiment shows a deposit safe, and when the user grasps the grip part 43 and pulls it toward him, the door body 44 rotates in the direction of arrow A in FIG. 3, opening the deposit door 42. It will be possible to do so.

Reference numeral 45 in the figure is a lock interlock, and when the bolt 41 is in a state where it can open the inlet door 42,
It has a pin 47 that fits into a hole 46 formed in 1, provides an elastic force in the direction in which the pin 47 fits into the hole 46, and has one end fixed to the door body 44 (not shown). The other end is a free end that engages with the stationary part of the device when the door body 44 is in the closed position,
The lock interlock 45, which is an elastic body, is bent so that the pin 47 does not fit into the lock 6.

Reference numeral 48 in FIG. 3 denotes a micro switch that opens and closes according to the movement of the locking plate 16, and is linked to a receipt issuing device (not shown).

Reference numeral 49 in FIG. 1 is a reed switch, which works in conjunction with a magnet 50 fixed to the door body 44 to detect the opening/closing of the input slot door 42 and opens/closes it. Further, when the input port door 42 is opened and then closed, the rotary solenoid 8 is used as a switch to return to its original position. Also, in this case, an end button is included,
It is preferable for safety to return the rotary solenoid 8 to its original position by the user closing the input door 42 and operating the end button.

In the lock of the device of the present invention, when the rotary solenoid 8 returns to its original position, or when the lock plate 16 is not prevented from sliding in the locking direction, the bar 41 automatically closes. It has an automatic latch that can be locked.

Since the structure of the locking device of the present invention has been clarified from the above, details of the operation will be explained below.

At a predetermined time, the main switch of the device is turned on to energize the device, which causes the rotary solenoid 28 to rotate clockwise in the figure and prevent the locking plate 24 from engaging with the starting arm 21. I'll figure it out. That is, in FIG. 5, it rotates about the shaft 25 from the position shown by the solid line to the position shown by the broken line. Due to this rotation, the engagement between the locking plate 24 and the starting arm 21 is released, and at the same time, the engagement between the locking plate 24 and the locking plate locking member 30 is also released. Therefore, when the power is applied, the functions of the starting arm 21, the locking plate 24, the locking plate locking member 30, and the replacement plate 35 are lost, and it is the same as if they were not attached.

In this state, when the card 1 is inserted from the insertion slot 2, if the card 1 has the regular notch 3, the leading edge of the card 1 will not hit the card stopper 5 and the card 1 will be inserted into the slot. It will be inserted all the way to the back, and the micro switch 6 will be closed. The closing of this micro switch 6 and the action of the card reading device 10, which is activated when the code entered by the user by pushing the button and the code previously stored in the magnetic stripe 7 of the card 1, are activated. The solenoid 8 rotates clockwise in the figure. As the rotary solenoid 8 rotates, the operation plate 11 having an elongated hole 13 into which a pin 9 protruding from the rotary solenoid 8 is loosely inserted is pushed down. That is, in FIG. 5, it rotates from the position shown by the solid line to the position shown by the dashed line. Due to this rotation of the rotary solenoid 8, the card lock member 14 connected thereto also moves from the position shown by the solid line in FIG. 5 to the position shown by the dashed line. In this case, a card lock pin 15 protruding from the card lock member 14 is inserted into the through hole 4. Furthermore, when the operation plate 11 is pressed down, the locking plate 16 connected to it also moves from the position shown by the solid line in FIG. The entrance door 42 is now in a state where it can be opened.

Then, when the user grasps the grip portion 43 and pulls it toward the user, the door body 44 rotates and the slot door 42 opens. The reed switch 49 detects this door opening and puts the electrical system of the device into a standby state for the next door closing operation. Also, during the opening operation of the slot door 42, the lock interlock 45 uses its elastic force to lock the pin 47 protruding from the lock interlock 45 into the lock 4.
1, and the bolt 41 is fixed in that position. Therefore, when locking the lock, the tip of the bolt 41 does not come into contact with any part of the device, so that it does not wear out.

The user inserts the deposit bag, etc., and closes the slot door 42.
9 is detected and the rotary solenoid 8 is rotated back to its original position. Further, the tip of the lock interlock 45 of the lock 41 engages with the stationary part of the device,
The pin 47 will be pulled out from the borehole 46 of the bolt 41. Then, as the rotary solenoid 8 returns to its original position, the lock plate 16 and the operation plate 11
The card lock member 1 can be moved to the locked position, that is, the position shown by the solid line in FIG.
4 moves to the position shown by the solid line in FIG. 5 and pulls out the card lock pin 15 from the through hole 4 of the card 1, so that the card 1 can be pulled out from the insertion slot 2.

When the rotary solenoid 8 returns to its original position as described above, the lock plate 16 and the operation plate 11 are released from their restraints, and the lock is automatically engaged, and the lock plate 16 and the operation plate 11 are
Move to the position indicated by the solid line in the diagram. Then, the microswitch 48 detects the position of the locking plate 16, and a receipt is issued by the receipt issuing device.

The user then pulls out the card 1 from the insertion slot 2 and receives the receipt, and the locking device of the present invention waits for the next operation.

With the above-described operation, the return of the rotary solenoid to its original position, the associated movement of the card lock member 14, and the locking of the automatic lock are performed almost simultaneously with the closing of the slot door 42.

In addition, if the user operates a separately provided end button to return the rotary solenoid 8 to its original position when the reed switch 49 detects that the input port door 42 is closed, the user can operate the end button. Since the card 1 cannot be pulled out unless the user does so, safety can be further improved in the sense that the user can confirm that the slot door 42 has been closed.

The operation of each of the starting arm 21, the locking plate 24, the locking plate locking member 30, and the replacement plate 35 will be explained below.
6 to the position shown by the dashed line in FIG. Accordingly, the locking plate 24 also moves from the position shown by the broken line to the position shown by the two-dot chain line. Furthermore, the locking plate locking member 30 moves the shaft 33 from the position shown by the solid line in FIG. 4 to the position shown by the two-dot chain line.
Rotates around. The operation of this lock plate locking member 30 will be described further below.

Now, the operation of the locking device of the present invention when the power supply to the device is cut off for some reason, that is, during a power outage will be explained.

During a power outage, the rotary solenoid 28 does not operate, so when the card 1 is not inserted, each component is in the positional relationship shown by solid lines in FIGS. 1, 4, and 5.

Then, the inserted card 1 is inserted into the regular notch 34.
If the card 1 is inserted, the leading edge of the card 1 first hits the protrusion 31 of the lock plate 30 as it is inserted. Further, the insertion of the card 1 progresses along the inclined surface 32 of the protrusion 31, and the lower end surface of the protrusion 31 is finally placed on the upper surface of the card 1. That is, as the card 1 advances, the projection 31 is lifted upward and rotated about the shaft 33 to the position shown by the two-dot chain line in FIG. By this rotation of the locking plate locking member 30, its lower end surface is also lifted upward, thereby disengaging the locking plate 24 from the locking plate 24, and the locking plate 24 becomes slidable. Until the locking plate 24 is disengaged, the card 1 is inserted only a distance corresponding to the length of the notch 34, and the side end surface of the card 1 is still in contact with the starting arm 21. Not in contact.

As described above, the locking plate 2 of the locking plate locking member 30
When the card 1 is inserted after the engagement with the card 4 is released, the portion of the side end surface of the card 1 that is not the notch 34 starts to come into contact with the starting arm 21, and the card 1 is inserted further. Finally, the starting arm 21
It rotates around the shaft 22 to the position shown by the dashed line in the figures and FIG.

In order to properly insert the card 1 that rotates the starting arm 21, the position and length of the notch 3 formed in the card 1 must match the card stopper 5 fixed to the device. Furthermore, in order for the starting arm 21 to rotate properly, the length of the notch 34 of the card 1 must be appropriate. That is, if the notch 3 does not fit with the card stopper 5, the card 1
When the leading edge of the card comes into contact with the card stopper 5, insertion is no longer possible. If the length of the notch 34 is short, the uncut side end surface of the card 1 will come into contact with the starting arm 21 before the locking plate locking member 30 is disengaged from the locking plate 24, so that the card 1 The insertion will stop there. Further, if the length of the notch 34 is long, the starting arm 21 cannot be rotated, or the starting arm 21 cannot be sufficiently rotated to perform the operations of each component as described below. Therefore, depending on the shape of the notch 3 and the notch 34 of the card 1, the card 1
can be a cipher.

When the starting arm 21 rotates properly due to the insertion of the card 1, one end of the locking plate 24 is connected to the starting arm 2.
1, and the locking plate locking member 30 is in a position that allows the locking plate 24 to slide, so as the starting arm 21 rotates, the locking plate 24 will be moved to the position shown by the dashed line in FIG. Furthermore, this locking plate 24
The movement involves rotating the exchange plate 35 around the shaft 36 to the position shown by the dashed line in FIG.
The rotation of the exchange plate 35 is caused by the locking plate 1 connected thereto.
6 and the bolt 4 associated with the locking plate 16
1 also moves, and the input port door 42 becomes in a state where it can be opened.

Since the operating plate 11 is linked to the locking plate 16, the operating plate 11 also rotates about the shaft 12 as the locking plate 16 moves. At this time, since the rotary solenoid 8 is not energized, the rotary solenoid 8 does not rotate, but the rotary solenoid 8 and the operation plate 11 are connected through the elongated hole 13.
Since this is done through the , rotation of the operation plate 11 is permitted.

Further, since the rotary solenoid 8 does not rotate, the card lock member 14 does not operate.

Then, the user inserts the deposit bag etc. into the slot door 4.
After closing 2, if you pull out the card 1 from the insertion slot 2, the automatic lock will lock, contrary to the unlocking.
The locking plate 16, replacement plate 35, and locking plate 24 operate, and the starting arm 21 returns to the position where it contacts the card 1 due to the restoring force of the compression coil spring 23.
In other words, as soon as the door is locked, it enters a standby state until the next card 1 is inserted.

As described above, the device of the present invention includes a microswitch that opens and closes when the card is inserted or pulled out when the shape is normal, and a card reader that operates when the code on the card is correct. The rotary solenoid, which is activated by the cooperation of the The card lock pin cannot be removed from the card hole, and therefore the card cannot be removed from the insertion slot, making it safer for users to never forget to lock the door. It has high effectiveness. In addition, by providing a starting arm, a locking plate, a locking plate locking member, and a replacement plate, even in the event of a power outage, if the card has a regular shape, it can be unlocked, making it an advantageous card. This has the effect of making the locking device extremely practical.

[Brief explanation of the drawing]

The illustrated embodiment shows a safe equipped with the locking device of the present invention. FIG. 1 is a front view, partially in section, and FIG. 2 is a plan view, also partially in section. FIG. 3 is a sectional view taken along the - line in FIG.
FIG. 4 is a sectional view taken along the - line in FIG. 1 as well. FIG. 5 is a diagram showing the operation of the locking device of the present invention. FIGS. 6 and 7 are exploded perspective views showing essential parts. FIG. 8 is a plan view showing the relationship when the card is inserted. 1... Card, 2... Insertion slot, 3... Notch,
4...Through hole, 5...Card stopper, 6...Micro switch, 8...Rotary solenoid, 10
... Card reading device, 11 ... Operation panel, 13 ...
Elongated hole, 14... Card lock member, 15... Card lock pin, 16... Locking plate, 21... Starting arm, 24... Locking plate, 28... Rotary solenoid, 29... Notch, 30... Retaining plate locking member, 31... protrusion, 32... inclined surface, 34...
Notch, 35... Replacement plate, 41... Bar, 42...
Inlet door, 44...door body, 45...lock interlock, 48...micro switch, 49...reed switch.

Claims (1)

[Scope of Claims] 1. A card having a notch formed from one end edge and having a through hole, a card stopper that fits into the notch of the card when the card is inserted, and a switch that engages with and disengages from the card to open and close when the card is inserted and pulled out. and a card reading device that confirms whether the card is correct or not.
Through the cooperation of the card reader and the switch, a rotary solenoid that operates only in the unlocking direction of rotational movement, and a pin protruding from the rotary solenoid are loosely inserted, so that when the rotary solenoid operates in the unlocking direction, an operating plate having one end rotatably supported on a stationary part of the device having a long hole that engages the circumferential surface and the inner edge of the pin; and a locking plate that slides in conjunction with the rotation of the operating plate. a card lock member having a card lock pin inserted into a through hole of the card and reciprocating as the rotary solenoid rotates, and associating the lock plate with the bar of the lock;
A locking device using a card, characterized in that when the door is closed, the rotary solenoid is rotated back to its original position from the unlocked position, and the lock is automatically locked. 2. A card having a notch formed from one end edge and having a notch with a through hole and a part of the side end cut out, a card stopper that fits into the notch of the card when the card is inserted, and a card that can be inserted into or pulled out of the card. A switch that opens and closes by engaging and disengaging,
A card reading device that confirms whether the card is correct or not, and a rotary solenoid that operates only in the unlocking direction of the rotation movement by the cooperation of the card reading device and the switch, and a pin protruding from the rotary solenoid that is loosely inserted. , an operating plate having one end rotatably supported on a stationary part of the device having an elongated hole that engages the circumferential surface and inner edge of the pin only when the rotary solenoid is operated in the unlocking direction; A locking plate that slides in conjunction with the card, a card lock member that has a card lock pin that is inserted into a through hole of the card and that moves back and forth as the rotary solenoid rotates, and a notch in the card are formed. a starting arm that abuts the uncut side edge of the side and is pivoted to a stationary part of the device so as to be rotatable when a card is inserted or pulled out;
One end is removably connected to the starting arm, and the other end is rotatably supported at one end of an exchange plate described later so as to be rotatable with respect to the exchange plate, and when engaged with the starting arm, slides in conjunction with the rotation of the starting arm. A locking plate that moves, and a device that engages with the leading edge of an inserted card and can be rotated when the card is inserted or pulled out, and that prevents or allows sliding of the locking plate due to the rotation. The supported locking plate lock member and the end opposite to the end rotatably supported on the locking plate are pivotally supported on the locking plate so as to be mutually rotatable and to allow sliding of the locking plate. ,
It consists of an exchange plate whose substantially central part is rotatably supported on the stationary part of the device, and the lock plate and the lock bar are connected,
The rotary solenoid is returned to its original position from the unlocked position by opening and closing the door, the locking plate is electrically engaged and disengaged from the starting arm, and is engaged when no electricity is applied, and the lock is automatically opened. A locking device using a card, characterized in that it is a latch.