Security card recognition system

Abstract

There is no end in sight to damages from thefts, accidents, and the like associated with illegal unlocking such as lock picking.　The present invention is provided with a locking device locked and unlocked by a key and a recognition box for recognizing an original card 2 that works in coordination with the locking device and has a unique shape distinguishable from others. The recognition box has a recognition means for recognizing, upon insertion of the original card 2, the unique shape of the original card 2 distinguishable from others from at least one direction on the entrance side and works in coordination so that the key becomes usable only when an original card 2 being inserted is recognized as the original card 2 corresponding to the recognition box. Further, the original card 2 becomes unremovable when the original card 2 corresponding to the recognition box has been inserted and the lock has been unlocked and becomes removable when the locking device has been locked and the key has been removed.

Description

Security Card Recognition System

[0001] The present invention relates to a security card recognition system that prevents unauthorized unlocking by picking a key or the like by linking with a locking device that opens and closes with a key.

[0002] Keyhole-type and electronic locks have traditionally been used as locking devices for entrance doors of homes, offices, etc. For example, locking devices such as those shown in Patent Documents 1 and 2, as well as locking devices using more advanced mechanical and electronic technologies, have been developed.

[0003] Japanese Patent Laid-Open No. 08-004374 Japanese Patent Laid-Open No. 2006-207361

[0004] As mentioned above, although keyhole and electronic locking devices for entrance doors of houses, offices, etc. have been developed using advanced mechanical and electronic technologies, thefts and accidents caused by unauthorized unlocking by lock picking, etc., due to time limitations of security company personnel, etc., continue to occur. In order to solve the above problems, the object of the present invention is to provide a security card recognition system that prevents unauthorized unlocking by lock picking, unauthorized radio waves, unauthorized magnetic fields, etc.

[0005] The security card recognition system of the present invention is characterized by comprising a locking device that is opened and closed by a key, and a recognition box that is linked to the locking device and opens and closes the keyhole of the locking device with a connected plate, and that recognizes original cards that have a unique shape that makes them distinctive from others.

[0006] The recognition box is characterized by having a recognition means for recognizing, from at least one direction on the entrance side, the unique shape of the original card that can be distinguished from others when the original card is inserted.

[0007] The recognition box is characterized in that a plurality of cylinders equipped with cylindrical pins for recognizing the edge of the inserted original card are provided at a predetermined interval at least at the entrance side, and the pins are each formed with a concave, convex or divided shape for recognizing the shear line, and when the shear line of the pin abutting against the edge of the original card is established, the connected plate opens and closes the keyhole of the locking device.

[0008] Furthermore, the recognition box is characterized in that the keyhole blocked by the plate of the locking device is linked to open only when the inserted original card is recognized as an original card corresponding to the recognition box.

[0009] When the original card corresponding to the recognition box is inserted and unlocked, the original card cannot be removed. Also, when the locking device is locked and the key is removed, the inserted original card can be removed.

[0010] By using the security card recognition system of the present invention, picking and the like can be prevented, and since no electronic devices or magnetism are used, these types of illegal intrusions are eliminated, and therefore theft and accidents due to bumping into each other are also eliminated.

[0011] FIG. 1 shows an external view of the recognition box of the security card recognition system according to the present invention. FIG. 1 shows a plan view of an original card. FIG. 1 shows whether the original card is recognized as matched or mismatched when inserted into the recognition box shown in FIG. 1, with (A) showing the matched state and (B) showing the mismatched state. FIG. 1 shows the state of original card recognition using a pin performed inside the recognition box shown in FIG. 1. FIG. 1 shows the internal structure of a pin case inside the recognition box. FIG. 1 shows the shape of the pin, with (A) showing a plan view, (B) showing a front view, and (C) showing a right side view. FIG. 1 shows a perspective view of a shear line shutter that recognizes the shear line on the pin inside the recognition box. FIG. 1 shows a method of recognizing an original card using a pin performed inside the vicinity of the lid of the recognition box. FIG. 1 shows a top view of the vicinity of the lid of the recognition box. FIG. 1 shows an outline of the pin case inside the lid, with (A) showing a plan view, (B) showing a front view, (C) showing a bottom view, and (D) showing a right side view. The diagrams show the interlocking of the locking device's cylinder cam 8, deadbolt, and security card recognition system, with (A) showing the locking device in an unlocked state, (B) showing the locking device locked from the outside, and (C) showing the locking device locked from the inside. The diagrams also show the flowcharts for locking and unlocking, with (A) showing the flow from a locked state and (B) showing the flow from an unlocked state.

[0012] An example of an embodiment of the present invention will be described with reference to Figures 1 to 11. An original card 2 as shown in Figure 2 is inserted into the recognition box shown in Figure 1.

[0013] After the original card 2 is inserted, it is fixed in the state shown in Figure 3. The state in Figure 3(A) is a recognition-compatible state, but the state in Figure 3(B) is a recognition-incompatible state because it has not been fixed.

[0014] 4, the original card 2 is inserted into the recognition boxes 1a and 1b surrounded by the pin case 4. In this example, the original card 2 is recognized from four directions by a plurality of pins 5a.

[0015] 5 shows the internal structure of the pin case 4. When an original card 2 corresponding to a recognition box 1a or 1b is inserted into the recognition box 1a or 1b, the pin 5a, which is pressed downward in the figure by the pin spring 5b within the cylinder 3, moves, and a shear line 5c is established.

[0016] In this embodiment, the pin 5a is designed as shown in FIG.

[0017] FIG. 7 shows a perspective view of a shear line shutter 6a and a shear line shutter plate 6b that slide into the shear line 5c.

[0018] 8A shows a cross-sectional view of the vicinity of the recognition box lid 1b when the original card 2 is inserted. After sliding the recognition box lid 1b on the provided rail or fixture up to the lid slide stopper 16, the pin case 4 is pushed in from above to recognize the original card 2 corresponding to the recognition box 1a, 1b. An outline of the pin case 4 is shown in FIG.

[0019] If the card is an original card 2 that corresponds to the recognition box 1a or 1b, the shear line 5c will appear as a square, as shown in Figure 4. This means that the card has been recognized as an original card 2 that completely corresponds to the recognition box 1a or 1b from all four directions.

[0020] The shear line shutter 6a shown in Figure 7 is slid onto the square shear line 5c. The shear line shutter 6a slides on the rail or fixture inside the recognition box 1b by the lever 15 of the cylinder opening closing plate.

[0021] As the shear line shutter 6a slides in, the shear line shutter plate 6b also slides. The sliding of this shutter plate 6b is linked to the cylinder opening closing plate 7 by a gear or shaft, and if an original card 2 is inserted, the keyhole 13 of the cylinder is opened.

[0022] Furthermore, using the flowchart shown in Figure 11, we will explain the interaction between the security card recognition system and a locking device that opens and closes using a key. An original card 2 can only be recognized by the corresponding recognition box 1a, 1b. The original card 2 is inserted (S3), the cylinder opening closing plate 7 is opened (S5), and once the key is opened (S6), the original card insertion port 1c is locked by the cover 1b (S7). That is, as shown in Figure 8B, inserting a key into the cylinder 8 and turning it in the unlocking direction rotates the cylinder cam 8, and the recognition boxes 1a, 1b are locked by the hook-type latch 11 connected by the connecting shaft or plate 14. Closing the insertion port 1b of the recognition box recognizes the shape of the original card 2, preventing picking.

[0023] Next, when the lock is locked, the cover 1b of the original card insertion port 1c is unlocked (S14) when the key is locked (S13), the key is removed (S15), the cylinder keyhole is closed with the cylinder opening closing plate 7 (S18), and the original card 2 is removed (S17). Since the keyhole is closed and the original card 2 has been removed, lock picking is prevented. That is, as shown in FIG. 8B , inserting the key into the cylinder 8 and turning it in the locking direction rotates the cylinder cam 8, unlocking the recognition boxes 1a and 1b with the hook-type latch 11 linked by the connecting shaft or plate 14. The hook-type latch 11 rotates using the hollow of the slide stopper 14 of the cover.

[0024] Therefore, by locking the original card insertion port 1c with the cover 1b in conjunction with the key of the locking device, the theft of the original card 2 can be prevented and at the same time the key can only be used when the original card 2 is inserted.

[0025] Furthermore, when locking the door from inside the room, an inner lock on the cover 1b of the original card insertion port 1c from the inside is required to prevent card theft. This is because there is a possibility of theft from outside, where the cylinder is picked to lock the door, remove the original card 2, and make a copy. Furthermore, when going out with the door locked, a simple lock on the cover 1b of the original card insertion port 1c can be used to prevent tampering.

[0026] 10 shows the interlocking with the deadbolt. When the door is locked from the outside, both deadbolt A9 and deadbolt B10 close due to interlocking with the cylinder cam 8, and the original card insertion slot linked to deadbolt A9 opens. When the door is locked from the inside, only deadbolt B10 closes, and the original card insertion slot 1c does not open.

[0027] The cylinder cam 8 is connected to the deadbolt A9 and deadbolt B10 by a shaft. Deadbolt B10 is connected to the end of the cylinder cam 8 that is closer to the cylinder, and deadbolt A9 is connected to the end that is farther away. Because the cylinder moves in a circular motion, a lag occurs in the left and right movement of deadbolt A9 and deadbolt B10. This is utilized.

[0028] DESCRIPTION OF SYMBOLS 1a Recognition box body 1b Recognition box lid 1c Recognition box original card insertion slot 2 Original card 3 Cylinder 4 Pin case 5a Pin 5b Pin spring 5c ​​Shear line 6a Shear line shutter 6b Shear line shutter plate 7 Cylinder opening closing plate 8 Cylinder cam 9 Deadbolt A 10 Deadbolt B 11 Hook-type latch 12 Cylinder 13 Keyhole 14 Connecting shaft or plate 15 Cylinder opening closing plate lever 16 Lid slide stopper

Claims

1. A security card recognition system characterized by comprising a locking device that uses a key, lever, etc. to move a latch linked to it and open and close the lock, and a recognition box that is linked to this locking device and opens and closes the keyhole of the locking device with a connected plate, and recognizes original cards that have a unique shape that can be distinguished from others.

2. The security card recognition system according to claim 1, characterized in that the recognition box has a recognition means for recognizing the unique shape of the original card, which distinguishes it from others, from at least one direction on the entrance side when the original card is inserted.

3. The security card recognition system of claim 2, wherein the recognition means comprises a plurality of cylinders equipped with cylindrical pins for recognizing the edge of the inserted original card, which are provided at a predetermined interval at least at the entrance side, and the pins are each formed with a concave, convex or segmented shape for recognizing the shear line, and when the shear line of the pin abutting against the edge of the original card is established, the connected plate opens and closes the keyhole of the locking device.

4. A security card recognition system as described in claim 1 or 2, characterized in that the recognition box is linked so that the keyhole blocked by the plate of the locking device opens only when the inserted original card is recognized as the original card corresponding to the recognition box.

5. A security card recognition system as described in any one of claims 1 to 3, characterized in that once the original card corresponding to the recognition box is inserted and unlocked, the original card cannot be removed.

6. A security card recognition system as described in any one of claims 1 to 3, characterized in that the recognition box allows the inserted original card to be removed when the locking device is locked and the key is removed.

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