JP2005226300A - Magnetic card lock equipped with impact unlocking prevention mechanism - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a magnetic card lock equipped with an impact unlocking prevention mechanism capable of preventing the unlocking by strong impact. <P>SOLUTION: The magnetic card lock is constituted of a slide member 1 inserted inside of the lock and moved from a locking position to an unlocking position by a key having a magnetic code, a plurality of magnet pins 4 capable of being moved from a first position locking the slide member to a second position releasing a locking state of the slide member by key operation, a locking plate 2 having a plurality of holes receiving the front end sections of the magnet pins when the slide member is located in the locking position, an interlocking means holding at least one magnet pin when the lock is hit, a cover plate 5 and a magnetic shield key 6 inserting a card key 8 between the cover plate and the magnetic shield key, and when a correct card key is inserted, the magnet pins come off from the holes of the locking plate and are stored in the slide member, and it is so constituted that the slide member is moved to the unlocking position from the locking position against spring force by movement of the card key. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a magnetic card lock provided with an impact unlocking preventing mechanism that is prevented from being unlocked by a strong impact.

  The magnetic lock by card key operation is designed to be incorporated in the interior of a wall or door, and the key is inserted into a slot on the front plate formed on the same surface. It is. When an impact is applied to the surface of the slot or wall or door, the magnetic pin moves in a direction perpendicular to the card slot plane, so it is rarely released, but the same lock is stored in the box. When attaching to the surface of a wall or attaching to a pillar at the entrance of a parking lot, it is possible to apply an impact to the head of the lock, and the magnetic pin can be shaken up and down by applying a strong blow. it can. If a card-key shape is inserted while giving an impact, the lock may sometimes be released.

  Locking means using an impact-resistant non-magnetic pin that maintains the lock in a locked state by stopping the movement of the slider that accommodates the tumbler pin in response to an unauthorized unlocking operation such as applying an impact (for example, Patent Document 1), and a method of using a magnetic pin to stop the movement of the slider when the lock is hit in a straight direction on the front surface of the lock pin (for example, see Patent Document 2). Has been developed. Further, there is also known a device (see, for example, Patent Document 3) in which even if vibration is applied to the card reader main body, the shape of the magnetic pin is devised so as not to be detached from the recess. Furthermore, even if the lock is struck, the slide member is urged from the locked position to the unlocked position unless an encoded key that moves the tip portion to a position that disengages from the locking plate is inserted into the lock. When operated, a lock operated by a magnetic key on which at least one of the magnetic pins is supported so that the tip portion is always prevented from moving laterally from the locked position in use (see, for example, Patent Document 4) ) Has been developed, the periphery of the opening of the locking plate has an inclined slope, the magnetic pin is smoothly inserted into the hole of the core slide, and the head flange is the opening of the locking plate An unlocking prevention mechanism (see, for example, Patent Document 5) installed in the section is also known.

However, in this lock, when rainwater hits the lock, the tip of the magnetic pin adheres to the surface of the cover plate, or the magnetic force is weakened by rainwater in the hole of the slide core member, The pin could be difficult to operate.
US Pat. No. 3,705,277 U.S. Pat. No. 3,995,460 Japanese Utility Model Publication No. 1-92476 Japanese Patent No. 2816025 specification Korean Patent Publication No. 1995 1411 Specification

  An object of the present invention is to provide a magnetic key operation lock in which at least one of magnetic pins is held so that the tip portion is always prevented from moving laterally from the locked position in use even when the lock is hit. In this case, even if rainwater or the like acts on the lock, the magnetic pin can be smoothly operated, and at least one specific magnetic pin can be freely set at an appropriate position in a plurality of holes of the slide core member. To provide a magnetic card lock having an unlocking prevention mechanism.

  An object of the present invention is to provide a slide member which can be moved from a locked position to an unlocked position by using a key having an encoded magnetic code inserted into the lock, and movement of the slide member. A slide that can move from a first position where the tip is positioned beyond the slide member and locks the slide member to a second position where the slide member is unlocked by a key operation in a direction perpendicular to the direction. A plurality of magnet pins having a length that substantially matches the depth of the pin receiving hole of the member, and provided along the slide member. When the slide member is in the locked position, the position and polarity of the code for locking A locking plate having a plurality of holes for receiving the tips of the magnetic pins to be formed, and the tips of the at least one magnet pin corresponding to the locking plates when the lock is struck Locking means for holding at least one magnet pin so as to mechanically prevent it from coming out, and arranged in the center of the location corresponding to the plurality of holes of the locking plate, arranged side by side with the locking plate A cover plate having protrusions and a magnetic shield plate for inserting a card key between the cover plate and the magnet pin when the correct card key is inserted. Is stored in the slide member through the hole of the locking plate, so that the slide member is moved from the locked position to the unlocked position against the spring force by the movement of the card key. This is solved by a magnetic card lock provided with a lock prevention mechanism.

  The invention described in claim 2 is characterized in that the holes accommodating the plurality of magnet pins of the slide member have the same size and the same shape, and at least one specific magnetic pin is provided in the plurality of holes of the slide core member. Provided is a magnetic card lock including an easy-to-handle impact unlocking prevention mechanism that can be freely set at an appropriate location.

  The invention described in claim 3 is characterized in that a drainage groove is provided in a hole for accommodating a plurality of magnet pins of the slide member, and rainwater can be drained from the magnet pin accommodation hole.

  The invention described in claim 4 is characterized in that a space larger than the diameter of the hole is provided in the upper portion of the hole for storing the plurality of magnet pins of the slide member, and rainwater is placed in the storage hole. The water can be drained through the drain groove.

  The invention described in claim 5 is characterized in that a projection is provided at the bottom of the hole for accommodating the plurality of magnet pins of the slide member, and the projection is provided in the magnet pin even if rainwater is in the accommodation hole. It prevents the adhesion force such as surface tension from acting so that it does not adhere to the bottom surface.

  According to this invention, even if the lock is struck, at least one of the magnetic pins is supported so that the tip portion is always prevented from moving laterally from the locked position in use. Not unlocked. Further, since the locking plate has a plurality of protrusions on the surface facing the slide member, a stepped portion is formed on the surface of the slide core member so that the head of the special magnetic pin is locked to the hole peripheral surface of the slide core member. There is no need to provide it. Furthermore, since the protrusions are formed on the surface of the cover plate facing the magnet pin housing hole of the slide member and the bottom surface of the magnet pin housing hole of the slide core member, the head portion of the magnet pin is covered with the cover plate. The bottom of the magnet pin does not adhere to the bottom surface of the storage hole of the slide core member.

  According to the present invention, since the plurality of holes of the slide member have the same size and the same shape, the special pin having the head flange may be inserted into any hole, and may be a part of the plurality of holes. Even if rainwater enters the lock, rainwater can be drained from the magnet pin storage hole, and a protrusion is provided on the bottom surface of the slide core member magnet pin storage hole so that adhesion force such as surface tension does not work on the bottom surface. The operation of the magnet pin is not hindered.

  Next, the present invention will be described in detail with reference to the drawings. 1 is an exploded perspective view of the cylinder lock, FIG. 2 is a side view of the slide member in a state where a correct card key is inserted into the slot of the cylinder lock, and FIG. 3 is a cross-sectional view of the state of FIG. FIG. 4 shows a side view of a locked state when an impact is applied to the cylinder lock and an attempt is made to move with an incorrect card. FIG. 5 shows a cover plate, a magnetic pin, and a lock plate. FIG. 6 is an exploded perspective view of the slider member, and FIG. 6 is a perspective view of a special magnetic pin having a double structure and a normal magnetic pin.

  FIG. 1 is an exploded perspective view of a cylinder lock, in which members such as a magnetic shield plate 6, a cover plate 5, a lock plate 2 and a slider member 1 are disassembled from a housing 7 of the cylinder lock. Yes.

  FIG. 2 shows a side view of the slide member with the correct card key inserted into the slot of the cylinder lock, and when the card key 8 is inserted into the slot of the cylinder lock, the card key The magnetic pins 3 and 4 are repelled by the magnetic force and pulled into the hole 11 of the slide member 1. In this state, the heads of the magnetic pins 3 and 4 are detached from the holes 21 of the lock plate 2. Therefore, when the card key 8 is further moved to the left side of the drawing, the slider member 1 can be moved to the cylinder lock bottom. When the card key 8 is moved to the unlocked state against the force of the spring, the slider member 1 is moved to the bottom of the cylinder lock housing, and the dead bolt at the door can be operated to enter the unlocked state.

  FIG. 3 shows a sectional perspective view of the state of FIG. 2. When the card key 8 is inserted into the slot of the cylinder lock, the magnetic pins 3 and 4 are repelled by the magnetic force of the card key and the slide member 1 is repelled. In this state, the heads of the magnetic pins 3 and 4 are detached from the holes 21 of the lock plate 2. The periphery of the hole 21 has a slope. When the magnetic pins 3 and 4 are retracted into the hole 11 of the slide member 1, the depth of the hole 11 of the slide member 1 and the vertical dimension of the magnetic pins 3 and 4, that is, the dimensions in the longitudinal direction are substantially the same. Since the wide space 13 is provided in the upper portion of the hole 11, the flange portion 32 of the magnetic pin 3 fits into the wide space 13 and the magnetic pins 3 and 4 do not protrude from the surface of the slide member 1. .

  In this case, the magnetic pin is supported at the bottom of the hole 11, and the flange portion 32 is not in contact with the surface of the slide member 1. Furthermore, although the wide space 13 is provided in the entire periphery of the hole 11 of the slide member 1 in the figure, if there is a space for the size and thickness of the flange portion 32, it is necessary to provide the wide space 13 over the entire periphery. However, if a wide space 13 is provided around the hole, water can be drained even if the magnetic pins 3 and 4 are set in the hole 11 of the slide member 1.

  2 and 3, a protrusion 14 is provided on the bottom surface of the hole 11 of the slide member 1. When the rain water enters, the protrusion 14 has a surface tension or the like at the bottom of the magnetic pin. Is prevented from adhering to the bottom surface of the hole 11. Further, the cover plate 5 has projections 51 protruding at positions corresponding to the holes 11 of the locking plate 2 at positions opposite to the holes 11 for accommodating the magnetic pins 3 and 4 of the slide member 1. The projection 51 prevents the magnetic pin head from adhering to the cover plate 5 due to surface tension or the like when rainwater enters.

  FIG. 4 shows a side view of a locked state when an impact is applied to the cylinder lock and an attempt is made to move it with an incorrect card. Even when the impact is received by the cylinder lock, the head has a flange portion 32. The special magnetic pin 3 is engaged with the plurality of holes 21 of the locking plate 2 and the holes 11 of the slide member 1 to maintain the locked state. Therefore, with this cylinder lock, an impact cannot be applied to the cylinder lock and unlocked with an incorrect card.

  FIG. 5 is an exploded perspective view of the cover plate, magnetic pins, lock plate, and slider member. The slider member 1 is provided with a number of holes 11 for receiving the magnetic pins 3 and 4. A drainage groove 12 is provided around 11. Further, a wide space 13 is provided in the upper part of the hole 11, and when rainwater enters the cylinder lock, when the rainwater enters the hole 11, the operation of the magnetic pins 3 and 4 is not smooth. Therefore, when the magnetic pins 3 and 4 move in the hole 11 by the magnetic force of the card keys 8, rainwater passes through the space 13 and is drained by the drain groove 12 of the hole 11 so that the magnetic pins 3 and 4 are smoothed. -It can be operated.

  FIG. 6 is a perspective view of the double-structured special magnetic pin 3 and the ordinary magnetic pin 4, and the special magnetic pin 3 has a flange portion 32 at the head. Such special magnetic pins 3 are known, but are more expensive than ordinary magnetic pins 4. These magnetic pins 3 and 4 have the same outer diameter and length as both special pins and ordinary pins.

  In the cylinder lock of the present invention, the slide member 1 is provided with a large number of holes 11 having the same shape and size, and if the special magnetic pin 3 is inserted into at least one of the appropriate positions of these holes 11, the impact is reduced. Even if is added to the cylinder lock, the locked state can be safely maintained. Since the hole 11 has the same shape and size, the special pin 3 may be placed anywhere and the special pin 3 can be easily set.

The perspective view which decomposed | disassembled the cylinder lock is shown. The side view of the slide member in the state which inserted the correct card key in the slot of a cylinder lock is shown. The cross-sectional perspective view of the state of FIG. 2 is shown. The side view of a locked state at the time of trying to move an impact with an incorrect card in addition to a cylinder lock is shown. The perspective view which decomposed | disassembled the cover plate, the magnetic pin, the lock plate, and the slider member is shown. The perspective view of a special magnetic pin of a double structure and a normal magnetic pin is shown.

Explanation of symbols

1. . . . . Slide member 11. . . . Pin receiving hole 12. . . . Drainage channel 13. . . . Space 2. . . . . Locking plate 21. . . . 2. Locking hole . . . . Special magnetic pin 32. . . . Flange part 4. . . . . 4. Magnetic pin . . . . Cover plate 51. . . . Projection 6 . . . . 6. Magnetic shield plate . . . . 7. Cylinder lock housing . . . . Card Key

Claims (5)

  A slide member which is inserted into the lock and can be moved from a locked position to an unlocked position using a key having an encoded magnetic code, and perpendicular to the moving direction of the slide member In the direction, the tip can be moved beyond the slide member and moved from the first position where the slide member is locked to the second position where the slide member is unlocked by a key operation. A plurality of magnet pins having a length substantially matching the depth, and tips of the magnet pins provided along the slide member, the position and polarity of which form a code for locking when the slide member is in the locked position A locking plate having a plurality of holes for receiving the part, and when the lock is struck, the tip of at least one magnet pin comes out of the corresponding hole in the locking plate Locking means for holding at least one magnet pin to mechanically block, and a cover disposed alongside the locking plate and having a protrusion at the center of the portion corresponding to the plurality of holes in the locking plate -A plate and a magnetic shield plate for inserting a card key between the cover plates, and when the correct card key is inserted, the magnet pin is moved to the locking plate. The impact unlocking prevention mechanism is characterized in that the slide member is moved from the locked position to the unlocked position against the spring force by the movement of the card key. Magnetic card lock provided.   2. A magnetic card lock having an impact unlocking prevention mechanism according to claim 1, wherein the holes for accommodating the plurality of magnet pins of the slide member have the same size and the same shape.   3. A magnetic card lock comprising an impact unlocking prevention mechanism according to claim 1, wherein a drainage groove is provided in a hole for accommodating a plurality of magnet pins of the slide member.   4. The shock unlocking prevention according to claim 1, wherein a space larger than a diameter of the hole is provided in an upper portion of the hole for accommodating the plurality of magnet pins of the slide member. 5. Magnetic card lock with mechanism 5. A magnetic card lock having an impact unlocking prevention mechanism according to claim 1, wherein a protrusion is provided at the bottom of the hole for accommodating the plurality of magnet pins of the slide member.

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