JP2007217974A - Code change movement rotation mechanism of magnetic card lock - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a code change movement rotation mechanism of a magnetic card lock which can make smooth the rotation of a carrier which is a means of changing a code of a locking mechanism operated by a magnetic card, and which can obtain a rotation position with great precision. <P>SOLUTION: The code change movement rotation mechanism consists of at least two carriers 15, and the carrier 15 is housed in a core slide member with possible rotation. Then a latch engagement member, which consists of four gradual raising parts all around the carrier on the periphery of the outside shape, is provided on one part of the periphery of the outside shape of the carrier in the lateral direction. A latch 14 fixed to a core hinge spring 13 is provided to the core slide member 11, and the latch 14 is provided so that it is engaged with the latch engagement member. Then an angle spring 16 incorporated into the carrier 15 is provided so that it can sandwitch a carrier shaft 18 which is provided to the core slide member 11, and the angle spring 16 is brought into contact with a cam 18a provided to the carrier shaft 18. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a rotation mechanism for operating a cord change carrier in a locking device operated by a magnetic card.

  A locking device operated by this type of magnetic card is known from European Patent No. 24242 (Patent Document 1), and the code is changed by a tool such as an insertion key that can be inserted into the opening of the lock cover. It was. This insertion key was inserted into a rotatable carrier, and the code of the lock was changed by the rotation of this carrier. However, the rotation of the carrier did not work smoothly, or the code change was an electrically operated hotel lock. It was not possible to use it by a method that was repeated many times.

  Also, in cylinder locks, code conversion is possible without the operation of tools or manual knobs, and the code conversion of locks is based on the necessity of using the key with the least possible expense and in the normal use of closing devices. As possible, for example, a hotel closing device uses a locking device that can be operated with the authority of a customer. Such a locking device is disclosed in Japanese Patent Publication No. 8-33084 (Patent Document 2). Are known.

  Furthermore, the lock code can be changed automatically as well as mechanically without the need for a central computer with an online door lock or an electronic or individual locking device with a battery, thus reducing the cost of the electronic system. A magnetic key operation lock device that can achieve the above effect has also been developed and is already known from Japanese Patent No. 3212994 (Patent Document 3). In this lock device, the carrier is rotated by a predetermined angle by inserting a code change key encoded with a code change code into the lock device, and at least two carriers are automatically rotated by a predetermined angle by inserting the code change key. These carriers are completely rotated one or more times before the locking device cord is repeated.

In the prior art (see FIG. 10), the left and right gears are each loaded with two magnet pins, and in order to rotate 90 degrees, it is necessary to supplement the rotation with two magnets when rotating to a certain angle. In addition, after 90 degrees, the rotation operation cannot be performed unless the gears are opposite to each other, and as a result, the conversion ends in four ways (360 degrees).
As described above, in the prior art locking device, the carrier is not rotated regularly, and the rotation is not smoothly performed or the accuracy of the rotational position is difficult to be achieved. Therefore, it is difficult to change the code appropriately and smoothly. It was.
European Patent No. 24242 Japanese Patent Publication No. 8-33084 Japanese Patent No. 3212994

  An object of the present invention is to provide a cord changing and rotating mechanism that smoothly rotates a carrier that is a cord changing means in a locking device operated by a magnetic card and obtains high accuracy of the rotational position.

  This subject includes a core slide member that is actuated from a locked position to an unlocked position by a magnetic card key, a plurality of magnet pins that constitute a code of a locking device that slides in a hole provided in the core slide member, and a code change. In the magnetic card locking device comprising a plurality of rotatable carriers of the locking device and a lock plate having a slot with which a magnetic pin is engaged, the code changing operation rotating mechanism is composed of at least two carriers, and this carrier Is rotatably accommodated in the core slide member, and a latch engaging member comprising four gradually rising portions is provided around the entire periphery of the carrier around the outer periphery of the carrier outer periphery. Is provided with a latch fixed to the core hinge spring, the latch being installed to engage the latch engaging member, The ring Le spring incorporated in the carrier, provided so as to sandwich the carrier shaft provided in the core slide member, by being in contact with a cam provided on the carrier shaft is achieved.

  The cord changing rotation mechanism according to the present invention is characterized in that a gear is formed by providing teeth arranged in parallel with the latch engaging member at a part of the periphery of the carrier.

  In the cord changing rotation mechanism of the present invention, the lock plate is formed with a cam slot for moving the magnet pin when the carrier rotates, and this cam slot shape vector enables the carrier gear to rotate independently. It is characterized by being.

  According to the rotation mechanism of the present invention, the rotation is performed regularly, and the spring provided on the carrier body is restrained so as to sandwich the shaft for supporting the carrier provided on the core slide member, so that no malfunction occurs. This rotating mechanism can be rotated even if the setting magnet pin is installed only in one installation hole in the carrier.

  According to the present invention, a cam is provided on the gear shaft, a spring is attached to the gear, and at a certain angle, the rotation is compensated for by rotating 90 degrees with a single magnet. There is no need for a slot slot shape, and the life of the mold is improved. In addition, by providing a reversing spring, the cam shape can be changed, and the rotation and conversion functions different from the prior art can be increased, thereby improving the crime prevention.

  According to the present invention, biaxial independent 360 degree rotation is possible, and left and right single setting and composite setting can be performed (see FIG. 7). As a result, the number of parts can be greatly reduced. Furthermore, if two axes are used, eight types of conversion can be performed. The crime prevention can be improved. In addition, since it is possible to rotate with one magnet per gear (see FIG. 8), in this invention, it can be rotated with two magnets and can be converted in four ways as in the prior art. It can be used at low cost.

  According to the present invention, it is possible to rotate the gear 90 degrees without difficulty by vector analysis of the cam shape of the lock plate. Considering the amount of attenuation of the force required to rotate the gear from 0 to 90 degrees with respect to the pushing force, it has a multistage curvature that matches the angle change, so it keeps 30% or more at the maximum and the pushing force is heavy. It is supposed not to be.

  Next, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. 1 shows a perspective view of a card key lock mechanism and a door lock latch mechanism cooperating therewith, FIG. 2 shows a locked state of the inner lock mechanism, FIG. 3 shows a cord changing means operating rotation mechanism of the present invention, and FIG. 4a shows an enlarged view of part A in FIG. 3, FIG. 4b shows an enlarged view of part B in FIG. 3, FIG. 4c shows a mode in which the carrier in FIG. 3 is provided with teeth and an AC gear, and FIG. FIG. 4e shows a cross-sectional view for explaining the structure for compensating for rotation, FIG. 4e shows a cross-sectional view for explaining the rotational replenishment force, and FIG. 5 shows 0 °, 36 °, 60 ° and 90 ° of the code changing operation rotating mechanism of FIG. 6 shows a mode of rotation operation, FIG. 6 shows a mode of rotation operation of the code changing means operating rotation mechanism of the present invention, FIG. 7 shows a mode of biaxial independent rotation of the code changing means operating rotation mechanism of the present invention, FIG. 8 shows the operation of rotation with one magnet of the cord changing means operating rotation mechanism of the present invention. Shows the embodiment, FIG. 9 is an explanatory view of the cam shape vector analysis of the lock plate. FIG. 10 shows a rotational operation mode of the code changing means operation of the card key lock of the prior art.

FIG. 1 shows a perspective view of a card key lock mechanism and a door lock latch mechanism cooperating therewith,
The card key 10 is inserted into the door lock housing 7 to release the locked state. When in the locked state, there is no mechanical connection between the door latch 3 and the handle 1. This handle 1 is used together with a normal handle 2 as required.

  FIG. 2 is a cross-sectional view of FIG. 1, showing the locking state of the inner locking mechanism. When the locking housing 7 of the locking mechanism is attached to the door, the hollow cylindrical member 4 is located in front of the housing 7 at the lower end of the locking mechanism. Extending outward from the wall, the handle spindle 39 and its cooperating members are mounted in the hollow cylindrical member 4. The magnetic card key 10 inserted from the hole 6 passes between the pair of shield plates 21 and the cover plate 22 arranged in the body surface state. The shield plate 21 is elastically pressed toward the cover plate 22 by a spring 23. The core slide member 11 is slidably attached by inserting the card key 10. The core slide member 11 is provided with the code changing means operating rotation mechanism of the present invention, and the structure for unlocking or locking the lock mechanism using a card key uses the structure of the prior art. Therefore, although the cord changing means operating rotation mechanism of the present invention will be described in detail, the basic structure of the lock mechanism is known from the known prior art, and is omitted in this specification.

  FIG. 3 shows the cord changing means operation rotating mechanism of the present invention. A magnetic card locking device provided with this code changing means operation rotating mechanism is generally slid within a core slide member 11 that is operated from a locked position to an unlocked position by a magnetic card key 10 and a hole provided in the core slide member 11. It comprises a plurality of magnet pins 19 constituting a cord of the locking device, a plurality of rotatable carriers 15 of the locking device so as to change the code, and a lock plate 12 having a slot into which the magnet pin 19 engages. The cord changing operation rotating mechanism includes at least two carriers 15, and the carriers 15 are rotatably accommodated in the core slide member 11.

  4A is an enlarged view of a portion A in FIG. 3, and a latch engaging member 15a including four gradually rising portions is provided around the entire periphery of the carrier around the outer periphery of a portion of the carrier 15 in the lateral direction. . A gear can be formed on the entire circumference of the carrier around the outer shape by providing teeth in the lateral direction around the outer shape in parallel with the latch engaging member 15a formed of four gradually rising portions. The core slide member 11 is provided with a latch 14 fixed to the core hinge spring 13, and the latch 14 is installed so as to engage with the latch engaging member 15a.

  4B is an enlarged view of a portion B in FIG. 3. The angle spring 16 is incorporated in the carrier 15 and is provided so as to sandwich the carrier shaft 18 provided on the core slide member 11. The angle spring 16 is provided on the carrier shaft 18. It is in contact with the cam 18a.

  FIG. 4c shows an aspect in which the carrier of FIG. 3 is provided with teeth to form an AC gear. In this embodiment, unlike the conventional case, the AC gear is an odd-numbered tooth of 180 degrees and one type is used in two. In this example, the number of teeth is 28, and there are two types of left and right gears. Considering left and right sharing, it is necessary to make the number of teeth 4 so that it does not break.

  4d and 4e show structures for compensating for the rotation by the spring 16 as in FIG. 4b. FIG. 4d shows a state before rotation, in which the spring 16 is located in the valley of the cam 18a of the gear shaft 18 and the backlash of the gear is suppressed. FIG. 4e shows a state in which the magnet is rotated by the magnet up to the position where the rotational supplement force starts to be generated. A repulsive force of the spring 16 is generated as the rotational vector is reduced by the magnet, thereby supplementing the rotation.

  FIG. 5 shows a mode of 0 °, 36 °, 60 °, and 90 ° rotating operations of the code changing operation rotating mechanism of FIG. FIG. 5a shows an AC gear carrier having odd teeth of 180 degrees in this embodiment, the magnet pin 19 is in a magnet attracting state, and the card key 10 is in a state before being inserted into the housing 71 of the magnetic card locking device. It is.

  In FIG. 5b, the card key 10 is inserted into the housing 71 of the magnetic card locking device, and the core slide member 11 starts to descend. The attracted magnet pin 19 is caught on the lock plate 12 and rotates the AC gear 36 degrees. The angle spring 16 incorporated in the carrier gear 15 is put on the cam crest 18 a provided on the gear shaft 18 of the plastic core slide member 11. If the card key 10 is extracted in this state, the angle spring 16 does not ride up to the top of the cam crest 18a, and thus the urging force to return returns to the original 0 degree operation state (FIG. 5a). Further, a latch 14 for preventing reverse rotation at each normal position and a hinge spring 13 integrally formed with the core slide member 11 are used for the return force of the latch.

  In FIG. 5 c, when rotating about 60 degrees, the other magnet pin 19 is attracted and compensates for rotation along the slot 20 of the lock plate 12. When rotated 45 degrees or more, the angle spring 16 rides over the cam crest 18a provided on the gear shaft 18 of the core slide member 11, so that an urging force is generated in the direction of the arrow (up to 90 degrees from the initial position), and the rotational movement is 90 degrees. Forced rotation to state (Fig. 5d). Even if the card key 10 is not inserted to the lower end, the carrier gear 15 is rotated 90 degrees (FIG. 5d).

FIG. 5d shows an aspect of 90 degree rotation. In the 90-degree rotation operation state, the latch 14 enters due to the reaction force of the hinge spring 13 of the core slide member 11 so that the carrier gear 15 does not rotate reversely. The same applies to the rotation from the 180-degree rotation operation state to the 270-degree rotation operation state. In the case of the 90 degree rotation operation state to the 180 degree rotation operation state and the 270 degree rotation operation state to the original 0 degree operation state, this process is performed by the left carrier gear.
In this configuration, only when the rotational force is applied to the carrier gear 15, the biasing force is applied to the gear to reduce the rotational resistance.

  FIG. 6 shows the mode of rotation operation of the cord changing means operation rotating mechanism of the present invention, and the upper part of FIG. 6 shows the mode of operation rotated from 0 degree to 36 degrees, 62 degrees, 83 degrees, 90 degrees, The lower part of FIG. 6 shows an operation mode that is further rotated by 36 degrees, 62 degrees, 83 degrees, and 90 degrees from the 90 degree rotation operation state as in the upper stage. Become.

  The camshaft 18a is provided on the gear shaft 18, the spring 16 is attached to the carrier gear 15, and at a certain angle, the rotation is compensated for by rotating 90 degrees with a single magnet. There is no need for a slot slot shape, and the life of the mold is improved. In addition, by providing a reversing spring, the cam shape can be changed, and the rotation and conversion functions different from the prior art can be increased, thereby improving the crime prevention.

  FIG. 7 shows an operation mode of the biaxial independent rotation of the cord changing means operating rotation mechanism of the present invention. FIG. 7 discloses an operating mode rotated from 0 to 180 degrees and an operating mode rotated from 90 to 270. With the code changing means operating rotation mechanism of the present invention, biaxial independent 360 degree rotation is possible, and left and right single setting and composite setting are possible. No gear shape is required, and only the right side can be rotated 360 degrees, so the left side rotating body is not required. The same applies to the left side. Accordingly, although only four types of conversion can be performed in the prior art, since four types of conversion can be performed individually, if the same four types as in the prior art are used, one of them is unnecessary, and thus the number of parts can be greatly reduced. Furthermore, if two axes are used, eight types of conversion can be performed. The crime prevention can be improved.

  FIG. 8 shows the operation mode of rotation with one magnet of the cord changing means operation rotation mechanism of the present invention. In FIG. 8, the operation mode rotated from 0 degrees to 90 degrees and the operation mode rotated from 90 degrees to 180 degrees are shown. Disclose. According to the cord changing means operation rotating mechanism of the present invention, it is possible to rotate with one magnet per gear. If the gear rotation is the same as in the prior art, the prior art did not rotate 360 degrees unless four magnets were used, but in this invention it can be rotated with two magnets, and there are four ways as in the prior art. Therefore, the use of expensive magnets can be omitted and the cost can be reduced.

  FIG. 9 is an explanatory view of the cam shape vector analysis of the lock plate. The lock plate 12 is formed with a cam slot 20 for moving the magnet pin 19 when the carrier 15 rotates, and this cam slot shape vector allows the carrier gear to rotate independently. Considering the amount of damping of the force B required to rotate the carrier gear 15 from 0 ° to 90 ° with respect to the pressing force A, it has a multistage curvature that matches the angle change, keeping it at most 30% and pressing down Force A was not increased.

The perspective view of a card key lock mechanism and the door lock latch mechanism which cooperates with it is shown. Indicates the locked state of the inner locking mechanism. The cord change means operation | movement rotation mechanism of this invention is shown. The enlarged view of the A section of FIG. 3 is shown. The enlarged view of the B section of FIG. 3 is shown. The mode which provided the tooth | gear for the carrier of FIG. 3 and made it AC gear is shown. Sectional drawing explaining the structure which supplements rotation is shown. Sectional drawing explaining rotation replenishment force is shown. The mode of the rotation operation | movement of 0 degree | times, 36 degree | times, 60 degree | times, and 90 degree | times of the code change operation | movement rotation mechanism of FIG. 3 is shown. The operation | movement aspect of rotation of the code change means operation | movement rotation mechanism of this invention is shown. The operation | movement aspect of the biaxial independent rotation of the code | cord change means operation | movement rotation mechanism of this invention is shown. The operation | movement aspect of the rotation by one magnet of the code change means operation | movement rotation mechanism of this invention is shown. An explanatory view of cam shape vector analysis of a lock plate is shown. The operation | movement aspect of rotation of the code change means operation | movement mechanism of a prior art card key lock is shown.

Explanation of symbols

1. . . . Handle 2. . . . Toride 3. . . . Door latch 4. . . . Hollow cylindrical member 6. . . . Card key insertion hole . . . Housing 9. . . . Handle spindle 10. . . . Card key 11. . . . Core slide member 12. . . . Lock plate 13. . . . Core hinge spring 14. . . . Latch 15. . . . Carrier (gear)
16. . . . Angle spring 17. . . . Core hole 18. . . . Carrier shaft 18a. . . Cam 19. . . . Magnet pin 20. . . . Lock plate slot 21. . . . Shield plate 22. . . . Cover plate 23. . . . spring

Claims (3)

  A core slide member operated from a locked position to an unlocked position by a magnetic card key, a plurality of magnet pins constituting a code of a locking device that slides in a hole provided in the core slide member, and a locking device so as to change the code In the magnetic card locking device comprising a plurality of rotatable carriers and a lock plate having a slot with which a magnetic pin engages, the cord changing operation rotating mechanism comprises at least two carriers, and the carrier is a core slide member A latch engaging member comprising four gradually rising portions is provided around the entire periphery of the carrier around the outer periphery of the carrier, and a core hinge spring is provided on the core slide member. A fixed latch is provided, the latch being installed to engage the latch engaging member, and Ring is incorporated into the carrier, the core slide member provided so as to sandwich the carrier shaft provided, the code changes the rotation mechanism, characterized in that in contact with a cam provided on the carrier shaft.   The cord changing rotation mechanism according to claim 1, wherein a gear is formed by providing teeth arranged in parallel with the latch engaging member at a part of the periphery of the carrier.   2. The lock plate is formed with a cam slot for moving a magnet pin when the carrier rotates, and the cam slot shape vector allows the carrier gear to rotate independently. The cord changing rotation mechanism described in 1.

Images