JP2006118348A - Electromagnetic locking device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electromagnetic locking device for furniture with drawers preventing the loss and forgery of keys without needing to carry/store the keys by electromagnetically locking a locking device for the furniture with drawers. <P>SOLUTION: The electromagnetic locking device is provided with a lever operating part for performing locking/unlocking operation of the locking device, and an electromagnetic operating part for switching the locking state and unlocking state of the lever operating part. The lever operating part is provided with a lever with a handle and a turning shaft extending at the back face, a shaft fixing means for fixing or separating the turning shaft and a shaft coupling part for supporting the turning shaft, and an operating bar for locking/unlocking the locking device, with one end fixed to the end part of the turning shaft. The shaft fixing means is provided with a fixing key member reciprocated in a keyhole, and an elastic member for supporting the fixing key member in the keyhole. The shaft coupling part has a key guide slit, and when the key guide slit is adjusted to the keyhole, the fixing key member enters the key guide slit to switch over to the locking state. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an electromagnetic lock device for drawer, and more particularly, a drawer that can lock a mechanical lock device for drawer such as a desk, a locker, a chest, etc. electromagnetically, and does not need to carry or store a key. The present invention relates to an electromagnetic lock device.

  In general, a chest, a desk, a locker or the like having drawers has a plurality of drawers that are opened and closed in a horizontal direction, and can store various articles therein. Among such furniture with drawers, for example, desk fixtures store various fixtures, documents, books, and the like. A lock device is provided to safely store a storage book or the like being pulled out.

  FIG. 1 is a perspective view showing the structure of a desk called a cabinet having a conventional locking device. A lock device 1 that locks / unlocks using a key is provided at the upper end of the multistage drawer cabinet 2. The lock device 1 has a latch (not shown) that reciprocates in the vertical direction by the rotation of a key. This latch moves up and down and is inserted into a locking groove (not shown) provided at the lower end of the drawer. break away. When the latch is inserted into the locking groove, the movement of the drawer in the horizontal direction is prevented, but when the latch is detached from the locking groove, the drawer can be freely opened.

  However, the lock device 1 according to the related art has the inconvenience that the user must always carry or store the key for locking / unlocking. Further, when the key is lost or in another place, there is a problem that the drawer of the cabinet 2 with the lock device 1 cannot be opened. Further, since the key structure for opening the locking device 1 is simple, the key can be easily counterfeited, and thus the risk of theft or the like is great.

  Accordingly, it is an object of the present invention to provide an electromagnetic lock device that does not require the key to be carried or stored, and that the drawer furniture cannot be used or the key is not counterfeited due to loss of the key. It is.

The electromagnetic lock device according to the present invention controls a lever operation unit that performs an operation of locking / unlocking the lock device, an electromagnetic operation unit that switches a lock state and an unlock state of the lever operation unit, and the electromagnetic operation unit. And a power input means for supplying a current to the signal input unit and the electromagnetic operation unit,
The lever operation unit includes a lever having a handle and a rotation shaft extending a predetermined length on the rear surface thereof, a shaft coupling unit that rotatably supports the rotation shaft, the shaft coupling unit, and the shaft coupling unit. A shaft fixing means for fixing or separating the rotating shaft, and an operation bar having one end fixed to the end of the rotating shaft and the other end engaged to lock / unlock the locking device,
The shaft fixing means includes a fixed key member that reciprocates in a key hole provided on a rotation shaft of the lever, and an elastic member that elastically supports the fixed key member in the key hole,
The shaft coupling portion has a key guide slit, and when the key guide slit and the key hole of the rotating shaft are aligned, the fixed key member enters the key guide slit and is switched to the locked state. An electromagnetic locking device.

  The electromagnetic actuating part has an electromagnetic drive means for performing linear reciprocation according to the conversion of electrical polarity, and a free end engaged with the linear motion part of the electromagnetic drive means, and pivots about a fixed end The upper end of the pivotable member is fixed to the center of the pivotable member with a pin, and the lower end moves up and down in the key guide slit of the shaft coupling portion, so that the fixed key member enters the key guide slit. It is preferable to provide a key pressing member for controlling the operation.

  The electromagnetic drive means is preferably a motor or a solenoid that reciprocates the linear motion unit.

  The signal input unit preferably includes a keypad and a sensor unit that senses external information.

  The power supply means is preferably an internal power supply and / or an external power supply connection terminal.

  If the electromagnetic lock device of the present invention having a configuration in which a mechanical lock device for drawer furniture is controlled using an electromagnetic lock is used, there is no need to carry or store the key, and the key can be carried or stored. Without the inconvenience of having to store, you can prevent crimes caused by forged keys, and you can safely store valuables in drawer furniture.

  Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 2 is a perspective view showing the structure of the multi-end drawer furniture (cabinet) according to the present invention. In the multi-end drawer furniture 20, the electromagnetic lock device 10 of the present invention is provided on the right side of the upper end portion that is not used as a drawer. Needless to say, the installation direction of the electromagnetic lock device 10 is not limited to either one, and can be changed to various installation forms according to the structure of the drawer furniture.

  FIG. 3 is a perspective view showing an electromagnetic lock device for drawer of furniture according to the present invention, and FIG. 4 is a rear perspective view showing a state in which the electromagnetic lock device according to the present invention is attached to the drawer furniture. 7 is a cross-sectional view showing each part of the electromagnetic locking device of the present invention. The electromagnetic lock device for drawers of furniture according to the present invention includes a lever operation unit 100 that performs an operation of locking / unlocking a central lock device of each drawer of drawer furniture, and a lock state and an unlock state of the lever operation unit 100. Switching electromagnetic operating unit 200, signal input unit 300 for controlling electromagnetic operating unit 200, power supply means (not shown) for supplying current to signal input unit 300 and electromagnetic operating unit 200, power supply means, signal input The case 500 includes a part 300, an electromagnetic operating part 200, and a lever operating part 100, and a fixing plate 600 and a fixing member 700 for fixing the case 500 from the inside of the drawer furniture.

  As shown in FIG. 4, the case 500 includes a front case portion 510 and a rear case portion 520 that covers the back of the front case portion 510. The front case portion 510 includes power supply means, a signal input portion 300, an electromagnetic actuating portion. The storage unit 511 mechanically stores the lever 200 and the lever operation unit 100 so as to be aligned with the drawer, and the panel unit 513 forms a frame 513a on the entire surface of the storage unit 511. Around the storage part 511 of the front case 510, a plurality of bosses 511a for fastening the fixing member 700 are provided.

  FIG. 5 is a partially enlarged cross-sectional view showing the structure of the lever operating portion of the electromagnetic locking device according to the present invention. The lever operating unit 100 includes a handle 110 and a lever 110 having a rotating shaft 113 extending from the back surface thereof by a certain length, a shaft coupling unit 120 that rotatably supports the rotating shaft 113 of the lever 110, The shaft coupling part 120 and the shaft fixing means 130 for fixing or separating the rotating shaft 113 are provided. One end of the operation bar 140 is fixed to the end of the rotating shaft 113, and the other end engages with a central lock device (not shown) of the furniture drawer. Therefore, the operation bar 140 rotates with the rotation of the lever 110, and the other end of the operation bar 140 locks or unlocks the central locking device.

  The shaft fixing means 130 is inserted into a key hole 113a provided in the rotation shaft 113 of the lever 110 and reciprocates, and an elastic member that elastically supports the fixed key member 131 in the key hole 113a. It consists of 133. A key guide slit 121 is formed in the shaft coupling portion 120 at a position that coincides with the key hole 113 a of the rotation shaft 113. In the locked state, the fixed key member 131 enters the key hole 113a. A part of the cylindrical surface at the end of the rotating shaft 113 is preferably flattened as shown in FIG. 4 so that the rotational force can be easily transmitted to the operation bar 140.

  6 and 7 are partially enlarged cross-sectional views showing the structures of the lever operating portion and the electromagnetic operating portion of the electromagnetic locking device according to the present invention. The electromagnetic operating unit 200 includes an electromagnetic drive unit 210 that performs linear reciprocation according to the change in electrical polarity, a linear motion unit 211 of the electromagnetic drive unit 210, and a free end 221 that engage with each other, and a fixed end 223 that A pivot member 220 that can pivot as a center, and a key that is pivotally engaged with a central portion of the pivot member 220 by a pin 231 and whose lower end is inserted into the key guide slit 121 of the shaft coupling portion 120. And a pressing member 230. The free end 221 of the pivotable rotating member 220 is engaged with the linear motion portion 211 of the electromagnetic driving means 210, and the upper end of the key pressing member 230 is pivotally engaged with the central portion of the rotating member 220. As a result, the key pressing member 230 is also moved up and down in the key guide slit 121 by the vertical movement of the linear motion portion 211, so that the fixed key member 131 of the shaft fixing means 130 is moved in the key guide slit 121 and the key hole 113a. Move up and down. In this example, the electromagnetic drive unit 210 has a structure in which the linear motion unit 211 is reciprocated by a motor. However, the present invention is not limited to this, and a solenoid, for example, may be used.

  As shown in FIG. 3, the signal input unit 300 may include a keypad 310 made of a combination of Arabic numerals or special characters and a sensor unit 320 that senses external information. As shown in FIGS. 3 and 4, the power supply means includes an internal power supply composed of one or more storage batteries connected to an input terminal 410 provided on the back surface of the case 500, or an input terminal 430 provided on the front surface of the case 500. An external power source can be used.

  The manner in which the central locking device of the drawer furniture is locked / unlocked by the electromagnetic locking device of the present invention having the above configuration will be described in detail below. First, the encryption number is input from the keypad 310 of the signal input unit 300 or the setting information is detected by the sensor unit 320. When the input information matches the stored information value, the electromagnetic actuator 200 is activated, and the polarity of the current applied to the electromagnetic driving means 210 of the electromagnetic operating section 200 is converted to change the linear motion section 211 of the electromagnetic driving means 210. Reciprocate linearly. The linear motion unit 211 that has been lifted in the locked state in FIG. 6 is lowered by switching to the unlocked state in FIG. As the linear motion unit 211 moves, the rotation member 220 having the free end 221 engaged with the linear motion unit 211 rotates about the fixed end 223.

  The key pressing member 230 whose upper end is pivotally engaged with the center portion of the rotating member 220 by the pin 231 descends in the key guide slit 121 of the shaft coupling portion 120, and the lower end of the key pressing member 230 is the key guide slit. Fixed key member 131 that has entered 121 is lowered. When the key pressing member 230 reaches the boundary between the inner surface of the shaft coupling portion 120 and the outer surface of the rotation shaft 113, the engagement between the fixed key member 131 and the slit 121 is released (unlocked), and the lever 110 is It becomes free to rotate. That is, the fixed key member 131 of the shaft fixing means 130 can rotate along the inner surface of the shaft coupling portion 120. For this reason, it is preferable that the distal end portion (the end portion on the shaft coupling portion 120 side) of the fixed key member 131 has a curved surface complementary to the inner surface of the shaft coupling portion 120.

  When the lever 110 is rotated in the opening direction in the unlocked state, the operation bar 140 fixed to the end of the rotating shaft 113 is also rotated together. The operation bar 140 unlocks the central locking device of each drawer of furniture. The central locking device itself may be a known one. For example, it has a locking groove provided on the bottom surface of each drawer, and when the latch connected to the operation bar 140 engages the locking groove, the horizontal movement of each drawer It may be something that prevents Since such a locking device is a well-known technique, description by drawing is abbreviate | omitted.

  When a certain time elapses (for example, immediately after the central locking device is unlocked), the electromagnetic driving means 210 is automatically operated, and the linear motion unit 211 moves upward. Then, the key pressing member 230 rises in the key guide slit 121 due to the upward rotation of the rotation member 220, and a free space is secured in the slit 121. Here, when the lever 110 is rotated in the closing direction, the operation bar 140 fixed to the bar coupling portion 113b of the rotation shaft 113 is rotated, and a latch (not shown) of the central locking device is moved in the vertical direction. The latch engages with a locking groove provided on the bottom surface of each drawer. When the lever 110 is further rotated in the closing direction, it reaches a point where the key hole 113a of the rotation shaft 113 and the key guide slit 121 of the shaft coupling portion 120 coincide with each other, and the fixed key member 131 is moved by the elastic force of the elastic member 133. Enter the free space of the key guide slit 121.

  When the fixed key member 131 enters the key guide slit 121, the lever 110 cannot be rotated, and the central locking device cannot be operated. In this way, the drawer furniture is kept locked.

  As described above, the case where the electromagnetic lock device of the present invention is used for drawer furniture has been described. However, the electromagnetic lock device of the present invention can of course be used for other furniture or facilities. Of course, the present invention having the above-described configuration can be variously modified without departing from the technical idea thereof.

It is a perspective view which shows the structure of the conventional drawer. It is a perspective view which shows the structure of the drawer desk which concerns on this invention. It is a perspective view showing an electromagnetic lock device used for drawer furniture concerning the present invention. It is a back perspective view showing signs that the electromagnetic locking device concerning the present invention is attached to drawer furniture. It is a partial expanded sectional view which shows the structure of the lever operation part of the electromagnetic type locking device which concerns on this invention. It is a partial expanded sectional view which shows the structure of the lever operation part of the electromagnetic locking device which concerns on this invention, and an electromagnetic action part. It is a partial expanded sectional view which shows the structure of the lever operation part of the electromagnetic locking device which concerns on this invention, and an electromagnetic action part.

Explanation of symbols

100 Lever operation section
110 lever
111 Handle
113 Rotating axis
113a Key hole
113b Bar joint
120 Shaft coupling
121 Key guide slit
130 Shaft fixing means
131 Fixed key member
133 Elastic member
140 Operation bar
200 Electromagnetic actuator
210 Electromagnetic drive means
211 Linear motion section
220 Rotating member
221 Free end
223 Fixed end
230 Key press member
231 pin
300 Signal input section
310 keypad
320 Sensor unit
410 Internal power input terminal
430 External power input terminal
500 cases
510 Front case
511 compartment
511a boss
513 Panel section
513a frame
520 Rear case
600 fixed plate
700 Fixed member

Claims (5)

A lever operating unit for performing an operation for locking / unlocking the locking device; an electromagnetic operating unit for switching between a locked state and an unlocked state of the lever operating unit; a signal input unit for controlling the electromagnetic operating unit; In an electromagnetic locking device comprising an input unit and a power supply means for supplying current to the electromagnetic operating unit,
The lever operation unit includes a lever having a handle and a rotation shaft extending a predetermined length on the rear surface thereof, a shaft coupling unit that rotatably supports the rotation shaft, the shaft coupling unit, and the shaft coupling unit. A shaft fixing means for fixing or separating the rotating shaft, and an operation bar having one end fixed to the end of the rotating shaft and the other end engaged to lock / unlock the locking device,
The shaft fixing means includes a fixed key member that reciprocates in a key hole provided on a rotation shaft of the lever, and an elastic member that elastically supports the fixed key member in the key hole,
The shaft coupling portion has a key guide slit, and when the key guide slit and the key hole of the rotating shaft are aligned, the fixed key member enters the key guide slit and is switched to the locked state. An electromagnetic locking device.   2. The electromagnetic locking device according to claim 1, wherein the electromagnetic actuating unit is an electromagnetic drive unit that performs linear reciprocation according to the conversion of electrical polarity, and a free engagement unit that engages with the linear motion unit of the electromagnetic drive unit. A rotating member having an end and capable of pivoting about a fixed end, and an upper end is fixed to a central portion of the rotating member by a pin, and a lower end moves up and down in the key guide slit of the shaft coupling portion, An electromagnetic lock device comprising: a key pressing member that controls the fixed key member entering the key guide slit.   3. The electromagnetic locking device according to claim 2, wherein the electromagnetic driving means is a motor or a solenoid that reciprocates the linear motion unit.   4. The electromagnetic lock device according to claim 1, wherein the signal input unit includes a keypad and a sensor unit that senses external information.   4. The electromagnetic locking device according to claim 1, wherein the power source means is an internal power source and / or an external power source connection terminal.

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