JP6660169B2 - Locking / unlocking device and unlocking assist device - Google Patents

Description

  The present invention relates to a locking / unlocking device and an unlocking assistance device, for example, to a locking / unlocking device and an unlocking assistance device provided on a door of a housing of a signal controller.

  A traffic lock such as a signal controller installed at an intersection is provided with a latch lock with a lock on a housing door in order to prevent access by anyone other than an administrator (for example, see Patent Document 1). In general, the installed latch lock itself is simple, but due to its nature, the key is carefully managed.

JP 2015-35088 A

By the way, regarding locks in traffic equipment such as a signal controller, that is, locks in a housing, there are the following problems when manufacturing and inspecting products of traffic equipment.
(1) Locks are dedicated to each prefecture, and the management of applied keys is troublesome.
(2) In the case of a new lock, the key may not be able to be borrowed in advance, and the lock may be replaced on site where the key can be borrowed.

  For this reason, during the period from manufacture to inspection of transportation equipment, depending on the situation, depending on the situation, the latch part of the keyed latch lock may be fixed so as not to lock the door, or the keyed latch lock or the receiving shaft on the housing side may be removed. The door and the housing have to be fixed with tape or temporarily replaced with a general-purpose lock, and it has to be dealt with by changing to a regular lock at the time of shipment.

  The present invention has been made in view of such a situation, and provides a technique for solving the above-described problems.

Locking and unlocking device of the present invention, a padlock Lula Tchitaipu to lock the door is installed in the housing, by operation from the outside of the housing, unlocking acts directly on the distal end side of the latch of the lock solution e Bei a lock assisting device, wherein the unlocking aid includes a cylindrical body attached to the lock, the operation from the outside of the housing, the interior of the tubular body the same as the operation direction of the latch A movable member that can move in the direction, and an arm portion that is rotatably attached to the distal end side of the movable member and that acts on the distal end side of the latch. when located in operational front, becomes freely rotatable, said movable member Before moving rearward in contact with the front end side of the latch to move to operate the rear of the latch.
Further, a wire for operating the moving member from outside may be provided.
The present invention provides an unlocking aid attached to padlock La Tchitaipu, a cylindrical body attached to the lock, the operation from the outside of the housing, the direction of movement of the latch inside of the tubular body A movable member movable in the same direction as the movable member, and an arm portion rotatably attached to the distal end side of the movable member and acting on the distal end side of the latch. When it is located at the front end of the operation of the latch, it becomes freely rotatable, and when the moving member moves rearward of the operation of the latch, it comes into contact with the tip side of the latch and moves rearward.

  ADVANTAGE OF THE INVENTION According to this invention, the technique of unlocking using an unlocking assistance device without using a key can be provided in the lock type lock with a key.

It is a three side view of a lock and unlock system concerning this embodiment. It is a three side view of the latch lock concerning this embodiment. FIG. 2 is a sectional view taken along line A-A ′ of FIG. 1 according to the embodiment. FIG. 2 is a sectional view taken along line B-B ′ of FIG. 1 according to the embodiment. It is a three-view figure of a pedestal member concerning this embodiment. FIG. 4 is a three-view drawing of a moving member according to the embodiment. It is the side view and front view of the fixing member which concern on this embodiment. It is a figure explaining unlocking operation by an unlocking auxiliary device concerning this embodiment.

  Next, embodiments for implementing the present invention (hereinafter, simply referred to as “embodiments”) will be specifically described with reference to the drawings.

  FIG. 1 is a three-view drawing of a lock / unlock system 10 according to the present embodiment, which is installed on a door 99 such as a signal controller. 1A is a plan view, FIG. 1B is a front view, and FIG. 1C is a side view. 2A and 2B are three views of the latch lock 20, FIG. 2A is a plan view, FIG. 2B is a front view, and FIG. 2C is a side view. FIG. 3 is a sectional view taken along line A-A ′ of FIG. FIG. 4 is a sectional view taken along the line B-B 'of FIG.

  In the locking and unlocking system 10, an unlocking assisting device 50 is attached to a general latch lock 20 shown in FIG. The unlocking assisting device 50 is temporarily attached to the product to which the latch lock 20 is attached, for example, a signal controller during manufacturing, and is operated from the outside even when the door is closed to unlock the latch lock 20. Lock.

  The latch lock 20 includes a box-type lock main body 30 and a mounting bracket 40 for fixing to a door or the like. The lock body 30 includes a lock housing 31, a latch 32, and a cylinder lock 33.

  The mounting bracket 40 includes a lock fixing surface 41 to which the lock main body 30 is mounted, a door fixing surface 42 to be fixed to the door 99, and a leg for setting the lock fixing surface 41 to a predetermined height from the door fixing surface 42 (door 99). A part 43. The door fixing surface 42 is, for example, screw-fixed by a fixing portion 49. Further, the lock body 30 is fixed to the lock fixing surface 41 by the screw 39.

  The cylinder lock 33 and the latch 32 are interlocked with each other. By inserting and operating a predetermined key into a key hole formed at the tip of the cylinder lock 33, the latch 32 is moved to the inside of the lock housing 31, The lock with the receiving shaft 98 (shown by broken lines in FIG. 2C and FIG. 8) on the housing side can be released and unlocked.

  The unlocking assisting device 50 attaches the pedestal member 60 to the latch lock 20, the moving member 70 moving in the front-rear direction (latch moving front-rear direction) inside the pedestal member 60, and the pedestal member 60. And a fixing member 80. The pedestal member 60 is attached to the lock body 30 by a fixing member 80 so as to rest on the screw 39 of the latch lock 20.

  5A and 5B are three views of the pedestal member 60. FIG. 5A is a plan view, FIG. 5B is a rear view, and FIG. 5C is a front view.

  The pedestal member 60 has a rectangular parallelepiped cylindrical housing having a hollow inside. A front opening 64 is formed in the front surface 62, and a rear opening 65 is formed in the rear surface 63. An internal cavity (moving space 69) is formed so as to connect the front opening 64 and the rear opening 65, and the moving member 70 moves in the moving space 69. A pulley 68 is provided inside the moving space 69 of the pedestal member 60 and near the rear opening 65. On the front surface 62, fixing holes 66 used for fixing the fixing member 80 are formed at left and right positions of the front opening 64.

  FIG. 6 is a three-view drawing of the moving member 70, FIG. 6 (a) is a plan view, FIG. 6 (b) is a front view, and FIG. 6 (c) is a side view.

  The moving member 70 includes a rectangular parallelepiped internal moving member 71 that moves in the front-rear direction in the internal cavity of the housing upper surface 61, an arm 72 rotatably provided at the front center of the internal moving member 71, and an internal moving member. 71, and a wire 75 attached to the back surface. The wire 75 has a length that extends to the outside of the casing of the signal controller, for example, to which the locking and unlocking system 10 is attached. When the moving member 70 is accommodated in the housing upper surface 61, the wire 75 is led out of the pedestal member 60 from the rear opening 65 via the pulley 68, and finally to the outside of the housing of the signal controller. Extend.

  The arm portion 72 has a substantially L-shape when viewed from the side, and one end side is formed to be rotatable by the internal moving member 71 by the shaft 73. The tip 74 on the other end extends downward in FIG. 6C and comes into contact with the tip of the latch 32 when the latch lock 20 is unlocked using the unlocking assisting device 50. The shape of the arm 72 is designed so that there is no interference with the surrounding structures.

  7A is a side view of the fixing member 80, and FIG. 7B is a front view of the fixing member 80. The fixing member 80 has a substantially L-shape in a side view, and includes a bifurcated lance 81 extending vertically in the figure and an insertion portion 82 extending horizontally in the figure. As shown in FIGS. 3 and 4, the insertion portion 82 is inserted into the space between the door 99 and the lock fixing surface 41, and is fixed to the fixing hole 66 with the screw 83 using the fork lance 81, thereby solving the problem. The lock assisting device 50 is attached so as to be sandwiched between the latch locks 20. By adjusting the fixing position of the screw 83 of the fork lance 81, the latch lock 20 having various thicknesses can be fixed.

  The unlocking operation of the latch lock 20 using the unlocking assisting device 50 in the locking and unlocking system 10 having the above configuration will be described with reference to the cross-sectional view of FIG. FIG. 8A shows a state where the door to which the locking and unlocking system 10 is attached is locked, and the latch 32 is locked on the receiving shaft 98 and locked. At this time, the moving member 70 of the unlocking assisting device 50 is moving forward, and the arm portion 72 is in a state of jumping upward free and does not particularly act on the latch 32.

  FIG. 8B shows a state in which the moving member 70 of the unlocking assistance device 50 has been moved slightly backward by pulling the wire 75. When the root portion of the arm 72 hits the upper side of the front opening 64, the tip 74 of the arm 72 rotates downward. At this point, the tip 74 has not yet hit the latch 32.

  FIG. 8C illustrates a state where the wire 75 is further pulled from the state of FIG. At this time, the arm portion 72 is in a horizontal state in the drawing, and the root portion of the arm portion 72 is accommodated in the moving space 69. Then, the distal end portion 74 is located near the latch 32.

  FIG. 8D shows a state in which the wire 75 is further pulled from the state of FIG. 8C to move the moving member 70 backward. At this time, the tip portion 74 of the arm portion 72 is in contact with the latch 32 and acts directly.

  FIG. 8E shows a state where the wire 75 is further pulled from the state of FIG. 8D to move the moving member 70 completely to the rear. At this time, the distal end portion 74 of the arm portion 72 pulls the latch 32 into the lock main body 30 and releases the locked state with the receiving shaft 98, that is, the unlocked state.

  As described above, by using the unlocking assisting device 50, the latch lock 20 can be unlocked regardless of the original key. This makes it possible to lock and unlock the door relatively easily even when the management and handling of the key is difficult as in a signal controller or the like, even during manufacturing or immediately before installation. Then, at the time of final delivery or installation, by removing the unlocking assisting device 50, it is possible to lock and unlock only with the original key.

  The present invention has been described based on the embodiments. This embodiment is an exemplification, and it will be understood by those skilled in the art that various modifications can be made to the combination of the components, and that such modifications are also within the scope of the present invention. For example, although the wire 75 is pulled to cause the tip portion 74 of the arm portion 72 to act on the latch 32, the operation may be performed by electric control. In addition, although the pulley 68 is provided to smoothly change the direction of the wire 75, the pulley 68 may be omitted and the edge of the rear opening 65 may be rounded to reduce the resistance when the wire 75 is pulled. Good.

DESCRIPTION OF SYMBOLS 10 Locking / unlocking system 20 Latch lock 30 Lock main body 31 Lock housing 32 Latch 33 Cylinder lock 39 Screw 40 Mounting bracket 41 Lock fixing surface 42 Door fixing surface 43 Leg 49 Fixing part 50 Unlocking assisting device 60 Base member 61 Housing Upper surface 62 Front surface 63 Rear surface 64 Front opening 65 Rear opening 66 Fixing hole 68 Pulley 69 Moving space 70 Moving member 71 Internal moving member 72 Arm 73 Shaft 74 Tip 75 Wire 80 Fixing member 81 Fork lance 82 Insertion part 83 Screw 98 Receiving shaft 99 Door

Claims (3)

And the lock of Lula Tchitaipu to lock the door is installed in the housing,
Wherein by an operation from the outside of the housing, Bei example and a unlocking aid for unlocking it acts directly on the distal end side of the latch of the lock,
The unlocking assistance device,
A tubular body attached to the lock,
A moving member capable of moving the inside of the cylindrical body in the same direction as the operation direction of the latch by an operation from the outside of the housing,
An arm portion rotatably attached to a distal end side of the moving member and acting on a distal end side of the latch;
With
The arm portion is rotatable when the moving member is located at the front end of the operation of the latch, and moves rearward when the moving member moves rearward of the operation of the latch by contacting the distal end side of the latch. locking and unlocking device, characterized in that cause. The lock / unlock device according to claim 1 , further comprising a wire for operating the moving member from outside. A unlocking aid attached to padlock La Tchitaipu,
A tubular body attached to the lock,
A moving member capable of moving the inside of the cylindrical body in the same direction as the operation direction of the latch by an operation from the outside of the housing;
An arm portion rotatably attached to a distal end side of the moving member and acting on a distal end side of the latch;
With
The arm portion is rotatable when the moving member is located at the front end of the operation of the latch, and moves rearward when the moving member moves rearward of the operation of the latch by contacting the distal end side of the latch. An unlocking assisting device characterized by causing the unlocking.

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