JP2005076268A - Handle lock - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a handle lock which is easily mountable on an existing device, and allows locking/unlocking of a handle while being mounted on the handle, to thereby improve the usability thereof. <P>SOLUTION: The handle lock is mounted on the handle 2 for rotatively operating a rotational shaft 1, and formed in a long rod formed of a base portion 3 fixed to the handle 2 by embracing the same, and a slider 4 slidable on the base portion 3 and capable of locking the handle 2 at a locking location at which the handle 2 is restricted at a predetermined rotational angle. The handle lock is usable as a grip. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a handle lock.

  As a locking device for making it possible to lock an existing handle such as a gas stopper in a restrained position, a device described in Patent Document 1 is known. In this conventional example, the handle is locked by attaching a cover provided with a cover turning prevention rod to the handle, and the cover turning prevention rod abuts against a pipe or the like by the attachment of the cover, and the handle cannot be rotated.

The unlocking of the handle is performed by removing the cover, and a lock member that can be removed by inserting a key is attached to the cover so that the cover is not removed irritably.
JP-A-11-270200

  However, the above-described conventional example has a drawback that it is inconvenient because it requires attaching and removing the cover each time the handle is locked and unlocked.

  The present invention has been made to eliminate the above drawbacks, and can be easily mounted on an existing apparatus, and can be locked and unlocked while attached to the handle, thereby improving usability. The purpose is to provide a handle lock.

According to the present invention, the object is
A handle lock attached to a handle 2 for rotating the rotary shaft 1,
A base portion 3 that holds the handle 2 and is fixed to the handle 2;
Provided is a handle lock that is slidable with respect to the base portion 3 and has a slider 4 that can be locked at a lock position that restrains the handle 2 at a predetermined rotation angle and can be used as a grip. Is achieved.

  The handle lock is formed by attaching the slider 4 to the base portion 3 so as to be movable. The slider 4 can be locked at a predetermined slide position. If this state is set to a position where the operation on the handle 2 is impossible, the handle 2 can be restrained in the locked state.

  In the present invention in which the handle 2 is locked and unlocked by the sliding operation of the slider 4, the operation can be performed while being mounted on the handle 2, so that the usability is improved. Further, since the handle lock includes the base portion 3 that is fixed to the handle 2 so as to hold the handle 2, it can be easily attached to the existing handle 2 or the like.

Further, in the handle 2 where the rotation operation is performed while pressing the unlocking operation unit 5,
A handle lock attached to a handle 2 for rotating the rotary shaft 1 that is releasably locked by an operation on the unlocking operation unit 5;
A base portion 3 that holds the handle 2 and is fixed to the handle 2;
It is slidable with respect to the base part 3 and can be locked at a position where the unlocking operation part 5 is shielded. A handle lock that can be used as a gripping hand can be used.

  According to the present invention, it can be easily attached to an existing apparatus, and the handle 2 can be locked and unlocked in a state of being attached to the handle 2, so that the usability is improved.

  1 to 3 show an embodiment of the present invention applied to a gas plug 6. FIG. As shown in FIG. 1, the gas stopper 6 is a valve device attached to the connecting portion of the gas pipe, and the handle 2 fixed to the shaft end of the rotating shaft 1 that also serves as a valve is in a posture along the pipe connecting portion 6 a. Corresponds to the “open” state. When the handle 2 is rotated 90 ° clockwise in FIG. 1A from this state, the gas insertion hole 6b is blocked by the rotating shaft 1 and shifts to the “closed” state.

  When attaching the handle lock, first, a locking band 7 is wound and fixed on the gas stopper 6. The locking band 7 is formed of, for example, a thin steel plate, and a bolt attached to the connecting end is used as the locking protrusion 8.

  The handle lock used for the gas plug 6 includes the base portion 3 fixed to the handle 2. The base portion 3 includes a back cover 9 that supports the handle 2 from the back so that the handle 2 can be retrofitted, and a top cover 10 that is fixed to the back cover 9.

  The back cover 9 is formed in a bowl shape that accommodates the handle 2 along the side surface and the back surface of the handle 2 over almost the entire length of the handle 2, and has one end for allowing the handle 2 to be inserted into the top surface of the bottom wall. A handle insertion opening 9a is provided (see FIG. 2A). As shown in FIG. 3A, the upper surface cover 10 is formed in a box shape with the opening facing downward, and the lid cover 12 is freely rotatable via a hinge 11 at the end of the rotary shaft 1 side of the gas plug 6. It is attached to.

  Therefore, in this embodiment, the handle lock is attached after the handle 2 is first inserted through the handle insertion opening 9a of the back cover 9 and the back surface of the handle 2 is accommodated along the bottom wall of the back cover 9. Then, the upper surface cover 10 is fixed to the back surface cover 9. As a result, the handle 2 or the gas plug 6 can be mounted without making any holes.

  A slide guide 13 is provided on the top cover 10. As shown in FIG. 3B, the slide guide 13 is fixed along the longitudinal direction of the upper surface cover 10, that is, the longitudinal direction of the handle 2, and is used for guides that sandwich both sides of the slide plate 14 of the slider 4 described later. A rising wall 13a is provided. The upper end edge of the guide rising wall 13a is bent to the center portion to form a drop prevention piece 13b for preventing the slide plate 14 from being detached upward. As shown in FIG. 3B, a plurality of serrated protrusions 13c are continuously formed on one drop-off preventing piece 13b.

  The slider 4 is attached to the upper surface cover 10. The slider 4 is a dial lock having a plurality of dials 15, and is movable in the longitudinal direction of the slide guide 13 by fitting the slide plate 14 at the lower end to the slide guide 13 as shown in FIG. Retained.

  In this embodiment, a cylinder lock 16 is attached to the slider 4 in addition to the dial 15 so that the unlocking can be performed even if the unlocking code formed by the dial 15 is forgotten.

  The configuration of the lock portion of the slider 4 can be diverted from the configuration of a well-known dial lock. In this embodiment, the lock 15 is configured by regulating the operation on the operation knob 17 with the dial 15. . As shown in FIG. 2A, the operation knob 17 is connected to a long rod 18 having a circular cross section and passes through a long rod insertion hole 15 a provided at the center of rotation of the dial 15. A plurality of projections 18 a are provided on the long rod 18 in accordance with the pitch of the dial 15, and an access recess 15 b into which the projection 18 a can be inserted is cut out in the long rod insertion hole 15 a of each dial 15.

  In FIG. 2A, where the dial portion is partially cut away, the access recess 15b of the dial 15 located at the left end faces the protrusion 18a of the long rod 18, but the dial 15 located on the right side thereof. The access recess 15b does not face the protrusion 18a because the rotational position of the dial 15 is not correct. Even if the operation knob 17 is to be moved to the right side in this state, it cannot be moved because the projection 18a of the long rod 18 is in contact with the right dial 15. This state is a locked state as a dial lock, and after that, when all the dials 15 are rotated to the position where the access recess 15b faces the projection 18a as if it were located at the left end, the moving operation to the operation knob 17 is performed. This state becomes an unlocked state.

  On the other hand, on the slide plate 14, as shown in FIG. 3B, a locking lever 19 that locks on the saw-tooth projection 13c is rotatable around the rotation shaft 19a, and the saw-tooth projection 13c by the spring 19b. And is connected in the locking direction. The locking lever 19 is provided with a cam hole 20 having a skew portion 20a on the right half, and an operation pin 21 connected to the operation knob 17 is inserted therein.

  In a state where the operation knob 17 is not operated, as shown in FIG. 3B, the locking lever 19 is locked to the sawtooth projection 13c, so that the slide guide 13 fixed to the base portion 3 is not moved. The slider 4 cannot slide. Further, in this state, the swing of the locking lever 19 is restricted by the operation pin 21 inserted into the cam hole 20, so that the slider 4 does not move in either the left or right direction.

  From this state, when the operation knob 17 is moved to the right side in FIG. 2B, the operation pin moves to the right side in FIG. 3B. As a result, the operation pin 21 guides the skew portion 20a and engages. The stop lever 19 swings, the engagement with the sawtooth projection 13c is released, and the slider 4 can be moved.

  In order to lock the handle 2 by utilizing the sliding of the slider 4 as described above, the slider 4 is provided with a lock portion 4a. The lock part 4a is engaged with the locked part provided in the gas stopper 6 when the slider 4 is in the locked position to restrict the rotation operation of the handle 2. In this embodiment, the locked part The locking projection 8 is used as described above, and the lock portion 4a is formed in a U-shaped cross-sectional shape that can be fitted to the locking projection 8 as shown by a chain line in FIG.

  Therefore, in this embodiment, the handle 2 is rotated from the position shown in FIG. 2 to the “closed” side, and then the slider 4a is fitted into the locking projection 8 as shown in FIG. If it is slid, the rotation operation to the handle 2 becomes impossible. This position is the locking position of the handle 2, and when the dial 15 is rotated from a predetermined unlocking rotation position in this state, the slider 4 is locked and the other person cannot open the gas plug 6.

  From this state, once the dial 15 of the slider 4 is operated to be in the unlocked state, the operation knob 17 is moved, and then the slider 4 is slid until the lock portion 4a is detached from the locking projection 8, The handle 2 can be rotated. This position is the unlocking position of the handle lock. After that, when the handle lock is gripped and a rotation operation is applied, the gas stopper 6 shifts to the “open” state.

  FIG. 5 shows a second embodiment of the present invention. In the description of this embodiment, components that are substantially the same as those of the above-described embodiment are denoted by the same reference numerals in the drawing, and description thereof is omitted. In this embodiment, as shown in FIG. 6B, the gas stopper 6 includes a lock release operation unit 5 formed by a push button, and the handle 2 is in a posture in which the lock release operation unit 5 protrudes. Be bound. In order to rotate the handle 2, it is necessary to apply a rotational operation force to the handle 2 while pressing the unlocking operation unit 5.

  Corresponding to the gas plug 6 configured as described above, the slider 4 is provided with a lock releasing portion 4b instead of the lock portion 4a. The unlocking part 4b is formed in a rod shape capable of pressing down the unlocking operation part 5.

  Further, the base portion 3, more precisely the back cover 9, is formed in a shape that completely covers the unlock operation portion 5 so that the unlock operation portion 5 is not operated illegally.

  Therefore, in this embodiment, when the slider 4 is unlocked from the locking position shown in FIG. 5 in the same procedure as in the above-described embodiment, and then the slider 4 is slid to the left side in FIG. The unlocking unit 4b can press the unlocking operation unit 5, hold the entire handle lock in this state, and rotate the handle 2 to the “open” side.

  In addition, although the example applied to the gas stopper 6 was shown above, it can be applied to other valve devices or operation handles.

It is a figure which shows the gas stopper of the locking object by this invention, (a) is a top view, (b) is a front view, (c) is a right view. It is a figure which shows this invention, (a) is sectional drawing, (b) is a top view which removes a cover and shows. FIG. 3A is a cross-sectional view of the base portion, and FIG. 3B is an explanatory view showing a locking / unlocking operation of the slider. It is a figure which shows the state which locked the handle | steering-wheel. It is a figure which shows the 2nd Embodiment of this invention, (a) is sectional drawing, (b) is a top view. It is a figure which shows the detail of FIG. 5, (a) is sectional drawing of a base part, (b) is a front view of a gas stopper.

Explanation of symbols

1 Rotating shaft 2 Handle 3 Base part 4 Slider 5 Unlocking operation part

Claims (2)

A handle lock attached to a handle for rotating the rotation shaft,
A base portion that holds the handle and is fixed to the handle;
A handle lock that is slidable with respect to a base part and has a slider that can be locked at a lock position that restrains the handle at a predetermined rotation angle, and is formed into an elongated shape and can be used as a grip. A handle lock attached to a handle for rotating a rotary shaft that is locked so as to be releasable by an operation to a lock release operation unit,
A base portion that holds the handle and is fixed to the handle;
It is slidable with respect to the base part, can be locked at a position where the unlocking operation part is shielded, and has a slider that operates the unlocking operation part at the sliding position. Handle lock available.

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