JP4658676B2 - Cabinet locking and unlocking device - Google Patents

Description

  The present invention relates to a cabinet locking / unlocking device in which an electric actuator is connected to a cylinder lock that is rotated by a key operation, and locking / unlocking is performed by an electric signal.

  As a conventional locking / unlocking device using a key operation and an electric actuator, the electric actuator is housed and fixed in a housing member supported by the rotating shaft of the cylinder lock, and is electrically connected such as disconnection of a cable transmitting an electric signal. When a trouble occurs, there is known one in which a cylinder lock is operated by a key to rotate an accommodation member so that an output shaft of an electric actuator can be rotated (for example, see Patent Document 1).

  As a similar locking / unlocking device, an electric actuator provided with an output shaft for operating an operating plate for locking / unlocking is connected to a rotating shaft of a cylinder lock that is rotated by a key operation, so that the electric actuator is connected by an electric signal. A limit switch is provided for detecting the locked / unlocked state at the rotation position of the output shaft, in which the output shaft is rotated by the key operation and the output shaft is rotated via the housing member that houses the electric actuator. Are also known (see, for example, Patent Document 2).

JP 2004-107911 A (page 4, FIG. 2) JP 2003-97126 A (page 4, FIG. 8)

  However, in Patent Documents 1 and 2, since the housing member is supported only by the rotation shaft of the cylinder lock, when the cylinder lock is operated by key operation, the output shaft opposite to the rotation shaft side of the housing member The side is prone to shaft swing. In particular, in the case where the limit switch of Patent Document 2 is attached, when an electric trouble occurs, if the electric actuator is driven again after the cylinder lock is operated by key operation, the output shaft is generated due to the shaft swing of the housing member. There is a problem in that the limit switch erroneously detects the locked / unlocked state due to the misalignment of the lock, resulting in malfunction of the locking / unlocking.

  The present invention has been made paying attention to such a problem, and when the output shaft of the electric actuator is rotated by rotating the receiving member by the key operation of the cylinder lock, the output shaft is displaced. An object of the present invention is to provide a cabinet locking / unlocking device that does not wake up.

In order to solve the above-described problems, the cabinet locking / unlocking device according to claim 1 of the present invention includes a cylinder lock that is rotated by a key operation and an electric actuator that rotates the output shaft by an electric signal. A cabinet locking / unlocking device configured to perform locking / unlocking, wherein the electric actuator is housed and fixed in a housing member that rotates integrally with a rotating shaft of the cylinder lock, and the electric member is rotated by rotation of the housing member. The output shaft of the actuator can be rotated, and locking / unlocking detecting means for detecting the locked / unlocked state by detecting the rotation position of the output shaft is provided. the outer peripheral portion of at least the output shaft side member, mounting a rotatably supported can support member, the support member, making it possible split two or more about said housing member It is characterized in that.
According to this feature, since the outer peripheral portion on the output shaft side of the storage member is rotatably supported by the support member attached to the fixing member that fixes the cylinder lock, the storage member can be operated by keying the cylinder lock. When the output shaft of the electric actuator is rotated so that the shaft does not shake on the output shaft side of the housing member, the locking / unlocking by the locking / unlocking detecting means that occurs due to the displacement of the output shaft It is possible to prevent erroneous detection of the state. Further, when assembling the locking / unlocking device, the support member can be arranged after the accommodation member is arranged in the center, so that the accommodation member can be easily supported by the support member and assembled.

The cabinet locking / unlocking device according to claim 2 of the present invention is the cabinet locking / unlocking device according to claim 1,
The housing member has a cylindrical shape, and the support member has a circular hole that can contact the entire outer peripheral portion of the housing member.
According to this feature, since the cylindrical housing member is supported by the circular hole of the support member, the housing member can be supported by the support member at any rotational position, and the housing member can be supported in any direction, up, down, left, or right There is no axis swinging.

The cabinet locking / unlocking device according to claim 3 of the present invention is the cabinet locking / unlocking device according to claim 1 or 2 , wherein the locking / unlocking detecting means projects a predetermined range of the outer periphery of the output shaft. It is characterized by being comprised by the dog provided so that it might do, and the limit switch arrange | positioned around the said output shaft.
According to this feature, since the dog is provided so that a predetermined range of the outer periphery of the output shaft protrudes, even if a slight rotation error occurs in the output shaft, the limit switch is in contact with the dog and detects it. be able to.

  BEST MODE FOR CARRYING OUT THE INVENTION A best mode for carrying out a cabinet locking / unlocking apparatus according to the present invention will be described below based on an embodiment.

  An embodiment of the present invention will be described with reference to the drawings. First, FIG. 1 is a system configuration diagram for controlling locking / unlocking of a plurality of cabinets. Reference numeral 1 in FIG. 1 denotes a cabinet capable of storing documents and the like. The cabinet 1 has a storage portion 2 having a sliding door structure in the upper portion and a storage portion 2 having a drawer structure in the lower portion. A plurality of cabinets 1 are arranged, and on the front side of each cabinet 1, an electronic lock 3 as a locking / unlocking device in this embodiment for locking the door of the storage unit 2, and unlocking of the storage unit 2. A confirmation lamp 4 that can confirm the lock state is provided. Further, a receiving antenna 6 for receiving a locking / unlocking signal transmitted from a remote controller 5 owned by the operator is installed on the top plate of one cabinet 1.

  As shown in FIG. 1, the electronic lock 3 and the confirmation lamp 4 are connected to the control unit 7 and the receiving antenna 6 is connected to the control unit 8. The control unit 7 that controls the electronic lock 3 and the confirmation lamp 4 of each cabinet 1 is connected in series and connected to one control unit 8. The control unit 8 is connected to a management computer 9 for storing signals received by the receiving antenna 6 and various data and transmitting electrical signals.

  Further, as shown in FIG. 1, in this cabinet 1, a locking signal is transmitted toward the receiving antenna 6 by locking the remote controller 5 owned by the operator. The lock signal received via the receiving antenna 6 is taken into the control unit 8, the control unit 8 transmits a lock signal to the electronic lock 3, the electronic lock 3 enters the locked state, and the confirmation lamp 4 lights up. It is supposed to be. Similarly, when the operator unlocks the remote controller 5, the electronic lock 3 is unlocked and the confirmation lamp 4 is turned off.

  Next, the electronic lock 3 provided in the cabinet 1 will be described in detail with reference to FIGS. 2 is an exploded perspective view showing the electronic lock 3 provided in the cabinet 1, FIG. 3 is a side view showing the electronic lock 3 provided in the cabinet 1, and FIG. 4 is an electronic lock in FIG. FIG. 5 is an electronic lock 3 viewed from the back direction, FIG. 5 (a) shows a locked state, and FIG. 5 (b) shows an unlocked state. Indicates the state. Hereinafter, the left side in FIG. 3 will be described as the front side (front side) of the electronic lock 3, and in FIG. 4, the lower side will be described as the front side (front side) of the electronic lock 3.

  As shown in FIGS. 2 and 3, the electronic lock 3 has a cylinder lock 11 that can be manually locked and unlocked by inserting a key 10 and operating the key. The rotating shaft 12 is rotated by a key operation on the rear side. A cylindrical housing member 13 is fixed to the rotating shaft 12, and attachment pieces 14 are extended laterally on both sides of the cylinder lock 11.

  As shown in FIGS. 2 and 3, the electronic lock 3 includes a fixing member 15 for fixing the electronic lock 3 to a structure (not shown) of the cabinet 1, and the fixing member 15 is made of metal. The plate-like member has attachment pieces 16 and 17 formed by bending the front side and the rear side upward. The attachment piece 16 on the front side of the fixing member 15 is formed with a notch portion 18 into which the cylinder lock 11 can be engaged, and an insertion hole 20 through which a screw 19 is inserted to fix the cylinder lock 11. A mounting bracket 21 is attached to the mounting piece 16 by a screw 19. The cylinder lock 11 is fixed to the fixing member 15 by the mounting piece 14 of the cylinder lock 11 being sandwiched between the mounting piece 16 on the front side of the fixing member 15 and the mounting bracket 21.

  Further, as shown in FIGS. 2 and 4, the fixing member 15 is fixed to the structure (not shown) of the cabinet 1 by inserting screws 23 through insertion holes 22 formed on the left and right sides. It is like that. Two attachment pieces 17 on the rear side of the fixing member 15 are formed on the left and right, and limit switches 24 a and 24 b are attached to each attachment piece 17. The limit switches 24a and 24b are adjusted so that the arrangement angle of the limit switches 24a and 24b is optimized by an adjusting screw 25 screwed into the mounting piece 17 from the side.

  As shown in FIG. 4, an electric actuator 26 in which a reduction gear is attached to a motor is accommodated and fixed inside the accommodating member 13 fixed to the rotation shaft 12 of the cylinder lock 11. On the output shaft 27 of the electric actuator 26, a substantially disk-shaped rotating plate 29 having an eccentric pin 28 protruding rearward is fixed. The eccentric pin 28 is engaged with a horizontally elongated hole-shaped engaging groove 31 formed in the operation plate 30 that locks and unlocks the door of the storage unit 2 of the cabinet 1. When the eccentric pin 28 is rotated, the operation plate 30 is linearly reciprocated in the vertical direction, and the door of the storage unit 2 of the cabinet 1 is locked / unlocked by operating a locking / unlocking structure (not shown).

  As shown in FIG. 5A, a dog 32 that protrudes outward over a predetermined range is provided on the outer peripheral surface of the rotating plate 29. In the present embodiment, the dog 32 protrudes in the range of a predetermined angle θ (about 60 °) on the outer peripheral surface of the rotating plate 29 with the axis of the rotating plate 29 as the center. When the rotating plate 29 is rotated and the dog 32 is arranged at a predetermined position, the limit switches 24a and 24b are pressed, and the management computer 9 can grasp the locked / unlocked state. The limit switches 24a and 24b and the dog 32 constitute the locking / unlocking detection means in this embodiment.

  As shown in FIG. 2, support members 33 are arranged on both the left and right sides of the housing member 13. The support member 33 is formed with standing pieces 34 and 35 by bending the front side and the rear side of a metal plate-like member. Each of the standing pieces 34, 35 is formed with cutout portions 34 a, 35 b cut out in a semicircular shape, and can be brought into contact with the entire outer peripheral surface (outer peripheral portion) of the housing member 13. It has become.

  As shown in FIGS. 2 and 4, the support member 33 is fixed to the fixing member 15 by screwing screws 37 inserted into the fixing member 15 into screw holes 36 provided in the supporting member 33. It has become so. When the support member 33 is fixed to the fixing member 15, the notches 34 a and 35 b of the support member 33 are arranged so as to sandwich the housing member 13 from the left and right directions, thereby forming a circular hole in this embodiment. ing. The standing pieces 34 and 35 arranged before and after the support member 33 rotatably support the outer peripheral surface of the front end portion of the housing member 13 and the outer peripheral surface of the rear end portion (output shaft side) by the circular holes. It is supposed to be.

  By forming the circular hole by combining the two support members 33, the support member 33 can be disposed after the housing member 13 is disposed in the center when the electronic lock 3 is assembled. The housing member 13 can be assembled to the support member 33.

  When the electric actuator 26 is driven during locking / unlocking, the rotating plate 29 fixed to the output shaft 27 rotates, and the eccentric pin 28 moves eccentrically. As shown in FIG. 5A, when the electric actuator 26 is driven, if the eccentric pin 28 is rotated and disposed at the upper position, the door of the storage unit 2 of the cabinet 1 is locked. It has become. At this time, the dog 32 provided on the outer peripheral surface of the rotating plate 29 presses the limit switch 24a disposed on the left side in FIG. The confirmation lamp 4 is turned on, and an electrical signal indicating the locked state is transmitted to the management computer 9.

  Further, as shown in FIG. 5B, when the eccentric pin 28 is disposed at a lower position, the door of the storage unit 2 of the cabinet 1 is unlocked. At this time, the dog 32 provided on the outer peripheral surface of the rotating plate 29 presses the limit switch 24b arranged on the right side in FIG. 5B, the driving of the electric actuator 26 is stopped, and the cabinet 1 is confirmed. The lamp 4 is turned off, and an electrical signal indicating the unlocked state is transmitted to the management computer 9.

  As shown in FIG. 5A and FIG. 5B, the dog 32 is provided so that a predetermined range of the outer peripheral surface of the rotation plate 29 protrudes. Even if some rotation error occurs in the plate 29 and the rotation stop position of the dog 32 is changed, the limit switches 24a and 24b are brought into contact with the dog 32 so that the management computer 9 can grasp the locked / unlocked state. ing.

  Further, in the event of an electrical trouble due to a break in the cable transmitting the electrical signal or a malfunction of the management computer 9, the receiving member 13 can be rotated by inserting the key 10 into the cylinder lock 11 and operating the key. ing. The rotating plate 29 fixed to the output shaft 27 of the electric actuator 26 is rotated by the rotation of the housing member 13, and can be locked and unlocked by manual key operation.

  Further, when the housing member 13 is supported by the support member 33, the housing member 13 is rotated by the key operation of the cylinder lock 11, and the rotating plate 29 provided with the eccentric pin 28 is rotated. In addition, the shaft does not shake at the rear end portion (output shaft side) of the housing member 13 so that the rotation plate 29 does not shift in the vertical direction or the horizontal direction.

  If the rotation plate 29 is displaced in the vertical direction or the horizontal direction, the force that presses the limit switches 24a and 24b by the dog 32 is weakened, and the limit switches 24a and 24b that should originally be pressed are sufficiently pressed. Otherwise, the locked / unlocked state may be erroneously detected. However, in the locking / unlocking device of the present invention, the housing member 13 is supported by the support member 33, so that the displacement of the rotating plate 29 can be prevented and erroneous detection of the locking / unlocking state can be prevented.

  Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these embodiments, and modifications and additions within the scope of the present invention are included in the present invention. It is.

  For example, in the above-described embodiment, the standing pieces 34 and 35 formed with the notches 34 a and 35 b that support the housing member 13 are formed on the front side and the rear side of the support member 33, and the front end of the housing member 13 is formed. However, the present invention is not limited to this, and the rear end of the housing member 13 (output shaft side) is supported. ) May be formed only on the rear side of the support member 33 so that only the support member 33 can be supported.

  Moreover, in the said Example, semicircular cutout part 34a, 35b is formed in the two support members 33 arrange | positioned at the right and left of the accommodating member 13, respectively, and the two support members 33 are united, and it is circular. Although the hole portion is formed, the present invention is not limited to this, and a circular hole portion is formed in one support member 33, and the accommodating member 13 of the cylinder lock 11 is formed in the circular hole portion. May be inserted.

  Further, in the above embodiment, the support member 33 with which the outer peripheral surface of the housing member 13 abuts has a circular hole portion in order to prevent the shaft of the housing member 13 from being shaken. However, the present invention is limited to this. Instead of being a thing, you may make it support the accommodating member 13 by forming a substantially square-shaped hole so that it can contact | abut to the outer peripheral part of the accommodating member 13 from the up-down direction and the left-right direction.

It is a system block diagram which controls locking / unlocking of a plurality of cabinets. It is a disassembled perspective view which shows the electronic lock with which the cabinet was equipped. It is a side view which shows the electronic lock with which the cabinet was equipped. It is an AA partial cross section top view of the electronic lock in FIG. It is the electronic lock seen from the back direction, (a) has shown the locked state, (b) has shown the unlocked state.

Explanation of symbols

1 Cabinet 3 Electronic lock (locking / unlocking device)
11 Cylinder lock 12 Rotating shaft 13 Housing member 15 Fixing member 24a, 24b Limit switch (locking / unlocking detecting means)
26 Electric Actuator 27 Output Shaft 28 Eccentric Pin (Output Shaft)
29 Rotating plate (output shaft)
32 dog (locking / unlocking detection means)
33 Support members 34a, 35b Notch (circular hole)

Claims (3)

A cabinet locking / unlocking device that performs locking / unlocking by connecting an electric actuator that rotates an output shaft by an electric signal to a cylinder lock that is rotated by a key operation, wherein the electric actuator includes the cylinder lock The output shaft of the electric actuator can be rotated by rotation of the storage member and can be locked and unlocked by detecting the rotation position of the output shaft. state unlocking detection means for detecting are provided to the fixed member for fixing the cylinder lock, the outer peripheral portion of at least the output shaft side of said housing member, mounting a rotatably supported can support member, the support member However, the cabinet locking / unlocking device can be divided into two or more around the housing member .   The cabinet locking / unlocking device according to claim 1, wherein the housing member has a cylindrical shape, and the support member has a circular hole portion that can contact the entire outer peripheral portion of the housing member. The unlocking detecting means, and the dog to a predetermined range of the outer periphery of the output shaft is provided so as to protrude, according to claim 1 or 2 is constituted by arranged limit switch around the output shaft Cabinet locking and unlocking device.

Images