WO2019097973A1 - Circuit breaker lockout key attachment tool - Google Patents

Abstract

This circuit breaker lockout key attachment tool (1) is provided with: a fixed member (20) which is immovably fixed to a circuit breaker; and a movable member (10) which is attached to the fixed member (20). The movable member (10) is movable between a lock position that either abuts on or is near to a switch of the circuit breaker and an unlock position that is spaced away from the switch.

Description

Lockout key attachment for breaker

The present invention relates to a lockout key attachment for a breaker.
Priority is claimed on Japanese Patent Application No. 2017-222226, filed Nov. 17, 2017, the content of which is incorporated herein by reference.

At the time of inspection work of the mechanical device or the like, in order to ensure the safety of the worker, the switch of the breaker may be locked out to prevent the switch from being accidentally turned on and becoming energized. In locking out the switch of the breaker, generally, a lockout key attachment for the breaker (hereinafter simply referred to as a fixture) and a lockout key are used in combination.

For example, in the fixture of Patent Document 1, by operating the toggle screw, the switch of the breaker is gripped by the base and the jaws, and the rotation of the switch is restricted. While a lockout key such as a padlock is locked to the fixture, the toggle screw can not be operated. Therefore, the switch of the breaker can not be turned until the lockout key is unlocked and removed, and the switch can be prevented from entering accidentally.

Japan Special Publication 2015-536525

By the way, in the configuration of Patent Document 1, when the inspection of the mechanical device is performed, it is necessary for the inspection worker to bring a fixture and attach it to the breaker or the like each time, and there is a problem that the operation is troublesome.
Also, in order to prevent the fixture from coming off the switch of the breaker, it is necessary to have the base and the jaws grip the switch with a strong force. As a result, the gripped switch may be chipped or broken. In particular, when the breaker is installed in a clean room or the like, since it is necessary to suppress the generation of shavings, there is a need for a mounting tool which does not require the switch to be gripped with a strong force.

The present invention has been made in consideration of such circumstances, and it is an object of the present invention to provide a fixture which simplifies the operation when restricting the rotation of the switch of the breaker and does not need to hold the switch with a strong force. To aim.

In order to solve the above problems, a lockout key fixture for a breaker (hereinafter simply referred to as a fixture) according to a first aspect of the present invention is a fixing member fixed immovably to a breaker, and the fixing member A movable member mounted on the movable member, the movable member being movable between a locked position in contact with or close to a switch of the breaker and an unlocked position spaced apart with respect to the switch.

The fixture according to the above aspect includes the fixed member fixed immovably to the breaker and the movable member attached to the fixed member. For this reason, it is possible to always install the fixture near the breaker even at normal times (when not performing inspection work and the like), and it is not necessary to bring the fixture at the time of inspection work and the like. Further, by fixing the movable member at the lock position, the lock state can be easily achieved.
Further, since this mounting tool can be mounted on a wall near the breaker and used, for example, it is not necessary to hold the switch of the breaker with a strong force. Therefore, the occurrence of scraping of the switch can be suppressed.

Here, one of the fixed member and the movable member is provided with a key attachment portion to which a lockout key is attached, and the other of the fixed member and the movable member is a lock hole into which the key attachment portion can enter. The movable member may be located at the lock position when the key attachment portion is in the lock hole.

In this case, the movable member can be fixed at the lock position by a simple operation of inserting the key attachment portion into the lock hole and attaching the lockout key to the key attachment portion.

Further, among the fixed member and the movable member, in the direction in which the lock hole is provided, an unlock hole through which the key attachment portion can enter is provided at an interval from the lock hole. May be

In this case, the lockout key can be easily attached to the key attachment portion in a state where the key attachment portion is advanced into the unlock hole. In addition, when the inspection operation of the mechanical device is not performed, the lockout key can be stored in a state of being attached to the attachment, and the lockout key can be prevented from being lost.

Further, the movable member has a shaft portion and an operation portion, the fixed member has a bearing portion rotatably and slidably supporting the shaft portion, and the lock hole is formed in the operation portion. It may be

In this case, the movable member can be rotated about the shaft by operating the operation unit, and the key attachment unit can be more easily locked by entering the lock hole formed in the operation unit. it can. Furthermore, since the lock hole is formed in the operation portion, the operation of aligning the position of the lock hole with the key attachment portion can be simplified.

Further, the fixed member is provided with a fixed side key attachment portion to which a lockout key is attached, and the movable member is provided with a movable side key attachment portion to which the lockout key is attached, and the fixed side key attachment When the lockout key is attached to the portion and the movable side key attachment portion, the movable member may be configured to be positioned at the lock position.

In this case, the movable member can be fixed at the lock position by a simple operation of attaching the lockout key to the fixed side key attachment portion and the movable side key attachment portion.

According to the above aspect of the present invention, it is possible to provide a lockout key attachment for a breaker, which is simple in restricting the rotation of the switch of the breaker and does not need to hold the switch with a strong force.

It is a figure which shows the mounting tool (unlocked state) of 1st Embodiment, (a) part is a front view, (b) part is a side view, (c) part is a top view. It is a figure which shows the mounting tool (locked state) of 1st Embodiment, (a) part is a front view, (b) part is a side view. It is a single-piece figure of the movable member of 1st Embodiment, (a) part is a front view, (b) part is a side view, (c) part is a top view. It is a single-piece figure of the fixing member of 1st Embodiment, (a) part is a front view, (b) part is a side view, (c) part is a top view. It is a figure which shows the state in which the lockout key was attached to the fixture (unlocked state) of 1st Embodiment. It is a figure which shows the state in which the lockout key was attached to the mounting tool (locked state) of 1st Embodiment. It is a single-piece figure of the movable member which concerns on the modification of 1st Embodiment, (a) part is a front view, (b) part is a side view, (c) part is a top view. It is a single-piece figure of the movable member which concerns on the other modification of 1st Embodiment, (a) part is a front view, (b) part is a side view, (c) part is a top view. It is a single-piece figure of the fixing member which concerns on the modification of 1st Embodiment, (a) part is a front view, (b) part is a side view, (c) part is a top view. It is a front view of the fixture (unlocked state) which concerns on 2nd Embodiment. It is a front view of the fixture (locked state) which concerns on 2nd Embodiment. It is a front view of the fixture which concerns on 3rd Embodiment. It is a single-piece figure of the sub fixing member of FIG. 11, (a) part is a front view, (b) part is a side view, (c) part is a bottom view. It is a single-piece figure of the movable member of FIG. 11, (a) part is a front view, (b) part is a side view, (c) part is a bottom view. It is a figure which shows the use condition of the fixture of FIG. It is a figure which shows the mounting tool (locked state) which concerns on 4th Embodiment, (a) part is a front view, (b) part is a side view, (c) part is a top view. It is a single-piece figure of the fixing member of 4th Embodiment, (a) part is a front view, (b) part is a side view, (c) part is a top view. It is a single-piece figure of the auxiliary fixing member of 4th Embodiment, (a) part is a front view, (b) part is a side view. It is a single-piece figure of the movable member of 4th Embodiment, (a) part is a front view, (b) part is a side view, (c) part is a top view. It is a figure which shows the fixture (unlocked state) which concerns on 4th Embodiment, (a) part is a front view, (b) part is a side view, (c) part is a top view.

First Embodiment
Hereinafter, the configuration of the lockout key fixture for a breaker according to the first embodiment will be described with reference to FIGS. 1 to 5B.
The lockout key fixture for breakers (hereinafter, simply referred to as fixture 1) of this embodiment is disposed and used in the vicinity of a breaker such as a substrate processing apparatus.

As shown in (a) to (c) of FIG. 1, the fixture 1 includes a fixed member 20 fixed to a wall of a building or the like, and a movable member 10 attached to the fixed member 20. . The fixing member 20 is fixed immovably to the breaker by being fixed to a wall surface or the like on which the breaker is installed. The movable member 10 has a shaft portion 11, and the fixed member 20 has a plate-like fixed portion 23 fixed to a wall surface or the like of a building. The movable member 10 is provided movably with respect to the fixed member 20.

(Direction definition)
Here, in the present embodiment, an XYZ orthogonal coordinate system is set to describe the positional relationship of each configuration. Hereinafter, the Z direction is referred to as the up and down direction, the X direction is referred to as the left and right direction, and the Y direction is referred to as the front and back direction. Further, the tip end side of the Z-axis arrow in the vertical direction is referred to as the upper side, and the opposite side is referred to as the lower side. Moreover, the tip side of the arrow of the X axis in the left-right direction is called the right side, and the opposite side is called the left side. Moreover, the front end side of the arrow of the Y-axis in the front-back direction is called back side, and the opposite side is called front side. The case where the fixture 1 is viewed in the vertical direction is referred to as plan view, the case where viewed from the front and rear direction is referred to as front view, and the case where viewed from the left and right directions is referred to as side view.

(Fixing member)
As shown in parts (a) to (c) of FIG. 4, the fixing member 20 includes the upper bearing 21 (bearing), the lower bearing 22 (bearing), the fixing part 23, and the key attachment part 24. Have. The portions 21 to 24 of the fixing member 20 are integrally formed.
The upper bearing 21 and the lower bearing 22 are spaced apart in the vertical direction, and are a pair of bearings that rotatably and slidably support the shaft 11. As shown in part (c) of FIG. 4, the upper bearing 21 and the lower bearing 22 are formed in a U shape in plan view.

The fixing portion 23 is formed in a plate shape extending in the vertical direction and the lateral direction. The fixing portion 23 is connected to the right end portions of the upper bearing portion 21 and the lower bearing portion 22. The fastening portion 23 is formed with two fastening holes 23 a and 23 b penetrating the fastening portion 23 in the front-rear direction. The two fastening holes 23a and 23b are arranged at intervals in the vertical direction. For example, a bolt or the like is inserted into the two fastening holes 23a and 23b. The two fastening holes 23a and 23b are used as fastening holes for fixing the fixing portion 23 to a wall surface or the like of a building. The fastening holes 23a and 23b are not limited to the through holes, and may be screw holes.

As shown in part (b) of FIG. 4, the key attachment portion 24 protrudes forward from the fixing portion 23. The key attachment portion 24 is formed in a plate shape extending in the vertical direction and the front-rear direction. The key attachment portion 24 is formed with a circular key attachment hole 24 a penetrating the key attachment portion 24 in the left-right direction. A latch of a padlock as the lockout key R is inserted into the key attachment hole 24a (see FIG. 5A).

(Movable member)
As shown in parts (a) to (c) of FIG. 3, the movable member 10 includes the shaft 11, the operation unit 12, and the connection unit 13 connecting the shaft 11 and the operation unit 12 to each other. ing. The portions 11 to 13 of the movable member 10 are integrally formed.
The shaft portion 11 is formed in a cylindrical shape extending in the vertical direction. The shaft portion 11 is located in the upper bearing portion 21 and the lower bearing portion 22 of the fixing member 20 as shown in (a) and (c) of FIG. 1.

As shown in portions (a) to (c) of FIG. 3, the operation unit 12 is formed in a plate shape extending in the vertical direction and the lateral direction. A lock hole 12a and an unlock hole 12b are formed in the operation portion 12 so as to penetrate the operation portion 12 in the front-rear direction. The lock holes 12 a and the unlock holes 12 b have the same shape as each other, and are arranged at intervals in the vertical direction. The lock hole 12a and the unlock hole 12b are formed in a rectangular shape longer in the vertical direction than in the horizontal direction. The length in the vertical direction of the lock hole 12 a and the unlock hole 12 b is larger than the length in the vertical direction of the key attachment portion 24 of the fixing member 20. The length in the left-right direction of the lock hole 12 a and the unlock hole 12 b is larger than the length (thickness) in the left-right direction of the key attachment portion 24. The key attachment portion 24 can enter the lock hole 12 a and the unlock hole 12 b.

The connecting portion 13 is formed with an assembly hole 14 penetrating the connecting portion 13 in the front-rear direction. The assembling hole 14 is formed in a rectangular shape longer in the vertical direction than in the horizontal direction. The lower bearing 22 of the fixing member 20 is inserted into the assembly hole 14 as shown in FIG. 1A. When the movable member 10 is moved up and down relative to the fixed member 20, the lower bearing portion 22 abuts on the upper end edge 14 a or the lower end edge 14 b of the mounting hole 14. The range in which the movable member 10 can move up and down is defined by this configuration.

Next, the operation of the fixture 1 configured as described above will be described.
Here, as shown in FIGS. 5A and 5B, the fixture 1 is fixed to a wall surface W such as a clean room, and the rotation of the switch S of the breaker B installed in the recess of the wall surface W is restricted. Explain. Although detailed illustration is omitted, a bolt is inserted into the fastening holes 23a and 23b of the fixing member 20, and the bolt is screwed to a nut or the like embedded in the wall surface W. It is fixed. The fixing member 20 is fixed to the wall surface W so as to be immovably fixed to the breaker B.

(Unlocked state)
FIG. 5A shows the case where the fixture 1 is in the unlocked state. Here, the unlocked state is a state in which the rotation of the switch S is not restricted. In the unlocked state, the movable member 10 is separated above the switch S, and the switch S can be freely rotated. In the present specification, the position of the movable member 10 in the unlocked state is referred to as an "unlocked position". That is, the position of the movable member 10 when the movable member 10 is separated from the switch S is referred to as an unlock position.
In the unlocked state, the key attachment portion 24 is in the unlock hole 12b of the movable member 10 (see (a) of FIG. 1). By attaching the lockout key R to the key attachment portion 24 in the unlocked state, it is possible to store the lockout key R at a normal time (when the inspection operation or the like is not performed).

(Locked)
Next, in order to inspect a mechanical device etc., the case where the state which interrupted | blocked electricity supply of the breaker B is maintained is demonstrated. FIG. 5B shows the case where the fixture 1 is in the locked state. Here, the locked state is a state in which the rotation of the switch S is restricted. In the locked state, the switch S is lowered to interrupt the energization of the breaker B, and the movable member 10 is in contact with or close to the switch S from the upper side. For this reason, rotation of the switch S is restricted. In the present specification, the position of the movable member 10 in the locked state is referred to as a “locked position”. That is, the position of the movable member 10 when the movable member 10 contacts or approaches the switch S is referred to as a lock position.

In the locked state, the key attachment portion 24 is in the lock hole 12a of the movable member 10 (see (a) of FIG. 2). When the movable member 10 is moved up and down in this state, the key attachment portion 24 abuts on the inner edge of the lock hole 12a, so that the relative vertical movement between the movable member 10 and the fixed member 20 is restricted within a predetermined range. . Further, a lockout key R such as a padlock is attached to the key attachment portion 24. For this reason, rotation of the movable member 10 with respect to the fixed member 20 is also restricted.
With the above configuration, when the substrate processing apparatus or the like is inspected, the switch 1 of the breaker B is unexpectedly rotated to lock the lockout key R with the fixture 1 in the locked state. Can be prevented.

(Method of operation)
When switching between the locked state and the unlocked state, the movable member 10 is pivoted to the front side around the shaft portion 11 with the lockout key R removed (see the two-dot chain line in (c) of FIG. 1). ). As a result, the key attachment portion 24 is detached from the lock hole 12a or the unlock hole 12b, and the movable member 10 can move up and down relative to the fixed member 20.
Next, the movable member 10 is moved up and down with respect to the fixed member 20 to align the position of the lock hole 12 a or the unlock hole 12 b with the key attachment portion 24 in the vertical direction. Then, the movable member 10 is pivoted to the rear side around the shaft portion 11, and the key attachment portion 24 is advanced into the lock hole 12a or the unlock hole 12b.
Next, a latch or the like of the lockout key R is inserted into the key attachment hole 24a, and the lockout key R is locked. As a result, the locked state or the unlocked state is obtained.

As described above, according to the fixture 1 of the present embodiment, the fixing member 20 fixed to the wall surface W etc. immovably with respect to the breaker B and the fixing member 20 attached to the fixing member 20 And a movable member 10. For this reason, it is possible to always install the fixture 1 near the breaker B even at normal times, and it is not necessary to bring the fixture 1 at the time of inspection work or the like.

Further, the movable member 10 is movable between a locked position (FIG. 5B) in contact with or close to the switch S of the breaker B and an unlocked position (FIG. 5A) separated from the switch S. By positioning the movable member 10 in the lock position, it is possible to prevent the breaker B from being accidentally turned on. Further, by positioning the movable member 10 at the unlock position, the breaker B can be turned ON after the inspection operation is completed.

Further, the key attachment portion 24 is made to enter the lock hole 12a or the unlock hole 12b, and the lockout key R is attached to the key attachment portion 24 so that switching between the locked state and the unlocked state can be easily performed. .
In addition, the lockout key R can be attached to the key attachment portion 24 while the attachment 1 is in the unlocked state at the normal time when the inspection of the mechanical device is not performed. This makes it possible to prevent the loss of the lockout key R and the like.

Further, in the locked state, the movable member 10 is brought into contact with or close to the switch S from above, thereby restricting the rotation of the switch S. Therefore, it is possible to suppress the scraping of the switch S, for example, as compared with the case where the switch S is gripped by a strong force to attach the fixture. In particular, when the breaker B is installed in a clean room or the like, it is required to suppress the generation of shavings, so the fixture 1 of this embodiment can be suitably used.

Further, as shown in part (a) of FIG. 2, in the locked state, the fastening holes 23 a and 23 b of the fixed member 20 are covered by the operation portion 12 of the movable member 10. Therefore, for example, by removing the bolt or the like inserted into the fastening hole 23b, the action of removing the attachment 1 is suppressed, and the locked state can be more reliably maintained.

The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the scope of the present invention.

For example, although the unlock hole 12b is provided in the movable member 10 in the embodiment, such an unlock hole 12b may not be provided. In this case, for example, the movable member 10 is retracted from the switch S of the breaker B by rotating the movable member 10 by 180 ° around the shaft portion 11 from the state shown in (a) to (c) of FIG. Alternatively, this state may be unlocked.

Moreover, in the said embodiment, although the lock hole 12a and the unlock hole 12b were provided in the movable member 10 and the key attachment part 24 was provided in the fixed member 20, this relationship may be reverse. That is, even if the movable member 10 is provided with the key attachment portion 24 for attaching the lockout key R, and the fixed member 20 is provided with the lock hole 12a and the unlock hole 12b to which the key attachment portion 24 can enter. Good.

Moreover, although the two holes (lock hole 12a and unlock hole 12b) which the key attachment part 24 can approach were provided in the movable member 10, three or more such holes may be provided. .
Moreover, the use condition shown to FIG. 5A and FIG. 5B is an example, and the location which fixes the fixture 1 can be suitably changed according to the structure of the part in which the breaker B is installed. For example, when the breaker B is housed in a housing, the fixing member 20 may be fixed to the housing.

Further, as shown in (a) to (c) of FIG. 6, the movable member 10 has plate-like convex portions 12c and 12d extending forward from the lock hole 12a and the unlock hole 12b of the operation unit 12, respectively. It may be done. In this case, the lockout key R may be attached in the through holes 12c1 and 12d1 formed in the protrusions 12c and 12d, respectively, together with the key attachment holes 24a.

Further, the lock hole 12a and the unlock hole 12b of the movable member 10 may be formed in a rectangular shape longer in the left-right direction than in the vertical direction, as shown in parts (a) to (c) of FIG. In this case, as shown in portions (a) to (c) of FIG. 8, the key attachment portion 24 of the fixing member 20 is also elongated in the left-right direction, whereby the key attachment portion 24 is the lock hole 12 a and the unlock hole. It can be inserted into 12b.

Second Embodiment
Next, a second embodiment according to the present invention will be described, but the basic configuration is the same as the first embodiment. For this reason, the same code | symbol is attached | subjected to the same structure, the description is abbreviate | omitted, and only a different point is demonstrated.

As shown in FIG. 9, the fixture 2 of the present embodiment includes a plate-shaped fixed member 30 and a rod-shaped movable member 40.
The fixing member 30 is immovably fixed relative to the breaker B. The fixing member 30 includes a fixing portion 31 fixed to a wall surface or the like, an upper bearing portion 35 extending downward from the fixing portion 31, a lower bearing portion 32, a first key attachment portion 33, and a second key attachment portion 34; have. The fixing portion 31 is formed in a plate shape extending in the vertical direction and the lateral direction. The upper bearing portion 35, the lower bearing portion 32, the first key attachment portion 33, and the second key attachment portion 34 are formed in a plate shape extending in the front-rear direction and the left-right direction.

The upper bearing portion 35 and the lower bearing portion 32 are disposed at an interval in the vertical direction. An upper bearing hole 35 a is formed in the upper bearing portion 35, and a lower bearing hole 32 a is formed in the lower bearing portion 32. The upper bearing hole 35a and the lower bearing hole 32a are arranged at the same position in the left-right direction and in the front-rear direction.

The first key attachment portion 33 and the second key attachment portion 34 are spaced apart in the vertical direction, and are positioned to the right of the upper bearing portion 35 and the lower bearing portion 32. The first key attachment portion 33 is located above the second key attachment portion 34. The first key attachment portion 33 and the second key attachment portion 34 are located between the upper bearing portion 35 and the lower bearing portion 32 in the vertical direction. A first key attachment hole 33 a is formed in the first key attachment portion 33, and a second key attachment hole 34 a is formed in the second key attachment portion 34. The first key attachment hole 33a and the second key attachment hole 34a are arranged at the same position in the left-right direction and in the front-rear direction.

The movable member 40 includes an upper shaft 41 and a lower shaft 43 extending in the vertical direction, and a U-shaped operation unit 42. The upper shaft portion 41 and the lower shaft portion 43 are disposed apart in the vertical direction, and are connected to each other by the operation unit 42. The upper shaft portion 41 is inserted into the upper bearing hole 31a, and the lower shaft portion 43 is inserted into the lower bearing hole 32a. Thus, the movable member 40 pivots relative to the fixed member 30 around the upper bearing hole 31 a and the lower bearing hole 32 a. Further, the movable member 40 can slide in the vertical direction with respect to the fixed member 30.

In order to set the fixture 2 in the unlocked state, as shown in FIG. 9, the first key attachment portion 33 is inserted inside the operation portion 42, and the lockout key is attached to the first key attachment hole 33a. On the other hand, when making the fixture 2 into a locked state, as shown in FIG. 10, the 2nd key attachment part 34 is penetrated in the operation part 42, and a lockout key is attached to the 2nd key attachment hole 34a. In the locked state, the lower shaft portion 43 protrudes further downward than in the unlocked state. Thus, in the locked state, the lower shaft portion 43 can be in contact with the switch S of the breaker B from above (see FIG. 5B).
As described above, in the present embodiment, the inside of the U-shaped operation portion 42 functions as a lock hole into which the key attachment portion 33 can enter.

Third Embodiment
Next, although a third embodiment according to the present invention will be described, the basic configuration is the same as the first embodiment. For this reason, the same code | symbol is attached | subjected to the same structure, the description is abbreviate | omitted, and only a different point is demonstrated.
In the present embodiment, it is assumed that the breaker B has a plurality of switches S or that a plurality of breakers B are arranged in parallel. In such a case, a plurality of fixtures 1 according to the first embodiment may be arranged side by side, but since it takes time and effort for fixing work such as adjusting the height individually, it is preferable to combine fixing members into one. . In that case, a structure as shown in FIG. 11 can be considered.

As shown in FIG. 11, the fixture 3 of the present embodiment includes a main fixing portion 50, a plurality of sub fixing portions 60, and a plurality of movable members 70. The main fixing portion 50 and the sub fixing portion 60 slidably and rotatably support the movable member 70, and function as a fixing member provided with the key attachment portion 62. The main fixing portion 50 and the plurality of sub fixing portions 60 may be integrally formed.

As shown in parts (a) to (c) of FIG. 12, the sub fixing part 60 includes a fixing part 61 fixed to a wall surface or the like and a key attaching part 62, and It is formed in plate shape of letter. The fixing portion 61 is formed in a plate shape extending in the vertical direction and the lateral direction. The fixing portion 61 is formed with a plurality of fastening holes 61 a. The fastening hole 61 a is used to insert a bolt or the like for fixing the sub fixing portion 60 to the wall surface. The key attachment portion 62 protrudes forward from the fixing portion 61, and is formed in a plate shape extending in the vertical direction and the front-rear direction. A key attachment hole 62 a is formed in the key attachment portion 62.

As shown in parts (a) to (c) of FIG. 13, the movable member 70 includes a columnar shaft 71 extending in the left-right direction, and an operation part 72 extending downward from the shaft 71. There is. The operation unit 72 is formed in a rectangular plate shape that is longer in the vertical direction than in the left-right direction, and is located at a central portion in the left-right direction of the shaft portion 71. The connecting portion 73 connecting the operation portion 72 and the shaft portion 71 has a smaller width in the left-right direction than the operation portion 72. In the operation portion 72, a rectangular lock hole 72a which is longer in the vertical direction than in the horizontal direction is formed.

As shown in FIGS. 11 and 14, the main fixing portion 50 has a plate-like fixing portion 51 and a substantially cylindrical rotation holding portion 52. The fixing portion 51 is formed with a plurality of fastening holes 51 a. The rotation holding portion 52 protrudes from the fixed portion 51 to the front side and extends in the left-right direction. The inner diameter of the rotation holding portion 52 is larger than the outer diameter of the shaft portion 71. The length of the rotation holding portion 52 in the left-right direction is larger than the length of the shaft portion 71 in the left-right direction. Since the slit 52c facing the front side is formed in the rotation holding portion 52, the rotation holding portion 52 has a C shape when viewed from the left and right direction (see FIG. 14). As shown in FIG. 11, the slit 52c extends in the left-right direction. A plurality of upper cutouts 52a are formed at intervals in the left-right direction in a portion of the rotation holding portion 52 above the slits 52c. A plurality of lower cutouts 52 b are formed at intervals in the left-right direction in a portion below the slit 52 c in the rotation holding portion 52. The upper and lower notches 52a and 52b are arranged at the same position in the left-right direction. The widths in the left-right direction of the upper notch 52a and the lower notch 52b are equal to each other, are larger than the width of the connecting portion 73 of the movable member 70, and are smaller than the width of the operation portion 72.

An opening 53 is formed on the right side of the rotation holding portion 52, and the width of the opening 53 in the left-right direction is larger than the width of the shaft 71 in the left-right direction. Thus, the shaft 71 can be inserted into the rotation holding unit 52 through the opening 53.
With the above configuration, as shown in FIG. 11, the plurality of shaft portions 71 can be rotatably held in the vertical direction in the rotation holding portion 52. When the connecting portion 73 is at the same position as the slit 52C in the vertical direction, that is, when the operation portion 72 is in a posture substantially orthogonal to the fixing portion 51, the shaft portion 71 is the rotation holding portion 52. It can slide in the left and right direction. That is, the main fixed portion 50 slidably and rotatably supports the movable member 70. While the connection portion 73 is positioned in the upper cutout 52a or the lower cutout 52b, the movement of the movable member 70 in the left-right direction with respect to the main fixed portion 50 is restricted.

Next, the usage method of the fixture 3 of this embodiment is demonstrated using FIG. 11 and FIG. In FIG. 11, the movable member 70 in the locked state is indicated by a solid line, and the movable member 70 in the unlocked state is indicated by a two-dot chain line.
The main fixing portion 50 and the plurality of sub fixing portions 60 are fixed to the wall surface W so as to have a positional relationship as shown in FIGS. 11 and 14. That is, a plurality of sub fixing portions 60 are disposed below the main fixing portion 50 at intervals in the left-right direction, and a plurality of sub fixing portions 60 are disposed above the main fixing portion 50 at intervals in the left-right direction. In addition, although the sub fixed part 60 arrange | positioned above the main fixed part 50 has a role which hold | maintains the movable member 70 which became an unlocked state, the upper sub fixed part 60 is not provided, It is also good.

When the fixture 3 is in the locked state, as shown by the solid line in FIG. 11 and FIG. 14, the key attachment portion 62 in the lower auxiliary fixing portion 60 is inserted into the lock hole 72a of the movable member 70 Attach the lockout key to the mounting hole 62a. In this state, the lower end of the operation portion 72 of the movable member 70 abuts on the switch S of the breaker B from above, so that the operation of the switch S is restricted. In addition, the upward rotation of the operation unit 72 is restricted by the lockout key.

On the other hand, in order to bring the fixture 3 into the unlocked state, the lockout key attached to the key attachment hole 62a is removed, and the operation portion 72 is turned upward. At this time, the shaft portion 71 of the movable member 70 rotates while being held by the rotation holding unit 52. Then, the operation portion 72 is pivoted upward, and the key attachment portion 62 of the upper auxiliary fixing portion 60 is inserted into the lock hole 72a (see the two-dot chain line in FIG. 11). In this state, since the operation unit 72 is separated upward from the switch S, the switch S can be operated. Then, when the lockout key is attached to the key attachment hole 62a of the key attachment portion 62, the operation portion 72 can be held in the upper position.

As described above, according to the fixture 3 of the present embodiment, the movable members 70 can be arranged side by side in the left and right direction, and thus a plurality of switches S are arranged in a row in the left and right direction. Can be suitably used.

Fourth Embodiment
Next, although a fourth embodiment according to the present invention will be described, the basic configuration is the same as the first embodiment. For this reason, the same code | symbol is attached | subjected to the same structure, the description is abbreviate | omitted, and only a different point is demonstrated.

As shown in parts (a) to (c) of FIG. 15, the fixture 4 of this embodiment includes a fixing member 80, an auxiliary fixing member 90, and a movable member 100. The fixing member 80 is fixed immovably with respect to the breaker by being fixed to a wall surface or the like on which the breaker is installed. The auxiliary fixing member 90 is fixed to the fixing member 80. The movable member 100 is provided movably with respect to the fixed member 80 and the auxiliary fixed member 90.

As shown in (a) to (c) of FIG. 16, the fixing member 80 has a fixing portion 81 and a fixing side key attaching portion 82. The portions 81 to 82 of the fixing member 80 are integrally formed. The fixing portion 81 is formed in a plate shape extending in the vertical direction and the lateral direction. The fixing portion 81 is formed with two fastening holes 81 a and 81 b penetrating the fixing portion 81 in the front-rear direction. The two fastening holes 81a and 81b are spaced apart in the vertical direction. For example, bolts or the like are inserted into the two fastening holes 81a and 81b. The two fastening holes 81a and 81b are used as fastening holes for fixing the fixing portion 81 to a wall surface or the like of a building. The fastening holes 81a and 81b are not limited to the through holes, and may be screw holes or the like.

As shown in part (b) of FIG. 16, the fixed side key attachment part 82 protrudes from the fixed part 81 toward the front side. The fixed-side key attachment portion 82 is formed in a plate shape extending in the vertical direction and the front-rear direction. In the fixed side key attachment portion 82, a circular fixed side key attachment hole 82a which penetrates the fixed side key attachment portion 82 in the left-right direction is formed. A lock of a padlock as the lockout key R is inserted into the fixed side key attachment hole 82a.

As shown in portions (a) and (b) of FIG. 17, the auxiliary fixing member 90 includes a retainer portion 91, a first protrusion 92, and a second protrusion 93. The portions 91 to 93 of the auxiliary fixing member 90 are integrally formed. The retainer portion 91 is formed in a plate shape extending in the vertical direction and the lateral direction. The retainer portion 91 is formed with two fastening holes 91a and 91b penetrating the retainer portion 91 in the front-rear direction. The two fastening holes 91a and 91b are arranged at an interval in the vertical direction. The distance between the fastening hole 91a and the fastening hole 91b is substantially the same as the distance between the fastening hole 81a and the fastening hole 81b of the fixing member 80. Therefore, when the fastening holes 91a and the fastening holes 81a are stacked in the front-rear direction, the fastening holes 91b and the fastening holes 91b can be stacked in the front-rear direction.

The first protrusion 92 and the second protrusion 93 are formed in a cylindrical shape extending in the front-rear direction. The first protrusion 92 extends from the inner peripheral edge of the fastening hole 91 a to the back side. The second projection 93 extends from the inner peripheral edge of the fastening hole 91 b to the back side. The lengths in the front-rear direction of the first protrusion 92 and the second protrusion 93 are substantially the same.

As shown in parts (a) to (c) of FIG. 15, the auxiliary fixing member 90 is disposed on the front side of the fixing member 80. Further, the movable member 100 is disposed between the auxiliary fixing member 90 and the fixing member 80. When the fixture 4 is attached to a wall or the like, two bolts or the like are inserted into the fastening holes 91a and 91b from the front side in the state of (a) to (c) in FIG. At this time, the tip end portion of one of the bolts protrudes to the back side of the fixture 4 through the fastening holes 91a and 81a. Further, the tip end of the other bolt protrudes to the back side of the fixture 4 through the fastening holes 91 b and 81 b. The fastener 4 can be fixed to a wall surface etc. by fastening the front-end | tip part of these bolts to a wall surface etc. At the same time, the auxiliary fixing member 90 can be fixed to the fixing member 80 and the movable member 100 can be attached to the fixing member 80.

The auxiliary fixing member 90 may be integrally formed with the fixing member 80 by, for example, a 3D printer. In addition, a part (for example, the protrusions 92 and 93) of the auxiliary fixing member 90 may be integrally formed with the fixing member 80. In this case, the protrusions 92, 93 may extend forward from the inner peripheral edge of the fastening holes 81a, 81b. In addition, as long as the movable member 100 does not come off from the fixed member 80 on the front side, the shape of the retainer portion 91 may be changed as appropriate. For example, a flange-like portion may be formed at the front end of the protrusions 92 and 93, and the flange-like portion may be used as the retainer portion 91.

As shown in parts (a) to (c) of FIG. 18, the movable member 100 includes a main body portion 101 and a movable side key attachment portion 102. Each part 101, 102 of the movable member 100 is integrally formed. The main body portion 101 is formed in a plate shape extending in the vertical direction and the lateral direction. The dimension of the main body portion 101 in the vertical direction is larger than the dimension of the main body portion 101 in the lateral direction. The main body portion 101 is formed with a groove 103 penetrating the main body portion 101 in the front-rear direction. The groove 103 has a longitudinal groove portion 103a, a first lateral groove portion 103b, and a second lateral groove portion 103c.

The longitudinal groove portion 103 a extends linearly in the vertical direction. The length in the vertical direction of the longitudinal groove portion 103 a is larger than the length from the upper end of the first projection 92 to the lower end of the second projection 93. The first horizontal groove portion 103 b extends rightward from an intermediate portion in the vertical direction of the vertical groove portion 103 a. The first lateral groove portion 103b is inclined so as to be gradually upward toward the right side. The second horizontal groove portion 103c extends rightward from the lower end portion of the vertical groove portion 103a. The second lateral groove portion 103c is inclined to be gradually upward toward the right side. The first lateral groove portion 103 b and the second lateral groove portion 103 c are arranged at an interval in the vertical direction. The distance between the first lateral groove portion 103 b and the second lateral groove portion 103 c in the vertical direction is substantially the same as the distance between the first protrusion 92 and the second protrusion 93 of the auxiliary fixing member 90. That is, when the first protrusion 92 is positioned in the first lateral groove portion 103b, the second protrusion 93 can be positioned in the second lateral groove portion 103c.

The movable side key attachment portion 102 protrudes from the main body portion 101 toward the front side. The movable side key attachment portion 102 is formed in a plate shape extending in the vertical direction and the longitudinal direction. In the movable side key attachment portion 102, a circular movable side key attachment hole 102a which penetrates the movable side key attachment portion 102 in the left-right direction is formed. A latch or the like of a padlock as the lockout key R is inserted into the movable side key attachment hole 102a.

As shown in parts (a) to (c) of FIG. 15, the movable member 100 is disposed between the fixed member 80 and the auxiliary fixed member 90. At this time, the first protrusion 92 and the second protrusion 93 of the auxiliary fixing member 90 are positioned in the groove 103.
Here, the first protrusion 92 and the second protrusion 93 are configured to be movable in the groove 103. More specifically, the outer diameters of the protrusions 92 and 93 are smaller than the width of the longitudinal groove portion 103 a in the left-right direction. Further, the outer diameter of the protrusions 92 and 93 is smaller than the width in the vertical direction of the lateral groove portions 103 b and 103 c. Furthermore, the dimension in the front-rear direction of the protrusions 92 and 93 is larger than the thickness in the front-rear direction of the main body portion 101 of the movable member 100. With the above configuration, the movable member 100 is movable relative to the fixed member 80 while being sandwiched between the fixed member 80 and the auxiliary fixed member 90.

When the fixture 4 of this embodiment is in the locked state, as shown in (a) to (c) of FIG. 15, the positions of the fixed key attachment portion 82 and the movable key attachment portion 102 in the vertical direction are adjusted. . Then, the lockout key R (see FIG. 5B) is attached to the fixed side key attachment hole 82a and the movable side key attachment hole 102a. Thus, the vertical position of the movable member 100 with respect to the fixed member 80 is fixed. At this time, the lower end of the movable member 100 largely protrudes downward with respect to the lower end of the fixed member 80. In the present embodiment, when the lockout key R is attached to the fixed side key attachment portion 82 and the movable side key attachment portion 102 as described above, the movable member 100 is positioned at the lock position. That is, the movable member 100 abuts on or approaches the switch S of the breaker B, and the switch S can not rotate (see FIG. 5B).

When the fixture 4 is in the unlocked state, the protrusions 92 and 93 are positioned in the lateral groove portions 103b and 103c as shown in (a) to (c) of FIG. The position of the movable member 100 in the vertical direction in this state is above the position of the movable member 100 in the lock position. At this time, even if the hand is released from the movable member 100, the protrusions 92 and 93 abut on the upper inner surfaces of the lateral groove portions 103b and 103c. That is, due to the weight of the movable member 100, the protrusions 92 and 93 are locked in the lateral groove portions 103b and 103c, and the downward movement of the movable member 100 is restricted. Further, the lateral groove portions 103 b and 103 c are inclined, whereby the position of the movable member 100 in the left-right direction is stabilized. In the present embodiment, when the protrusions 92, 93 are positioned in the lateral groove portions 103b, 103c as described above, the movable member 100 is positioned at the unlock position. That is, the movable member 100 is separated from the switch S of the breaker B upward, and the switch S is turned (see FIG. 5A).

As described above, in the fixture 4 of this embodiment, when the lockout key R is attached to the fixed side key attachment portion 82 and the movable side key attachment portion 102, the movable member 100 is positioned at the lock position. It is configured. Therefore, the movable member 100 can be fixed at the lock position by a simple operation of attaching the lockout key R to the fixed side key attachment portion 82 and the movable side key attachment portion 102.

Alternatively, the lockout key R may be attached to the fixed side key attachment portion 82 or the movable side key attachment portion 102 in a state where the movable member 100 is positioned at the unlock position. Thereby, the lockout key R can be stored when the inspection work is not performed.

The lateral grooves 103b and 103c may not be inclined but may extend linearly in the left-right direction. Also in this case, the vertical position of the movable member 100 when in the lock position can be restricted. Furthermore, in this case, a restricting portion may be provided which restricts the movement of the protrusions 92, 93 from the inside of the lateral groove portions 103b, 103c toward the inside of the longitudinal groove portion 103a. The restricting portion may be, for example, a protrusion that protrudes downward from the left end portion of the inner surface on the upper side of the lateral groove portions 103b and 103c.

In addition, it is possible to replace components in the above-described embodiment with known components as appropriate without departing from the spirit of the present invention, and the above-described embodiments and modifications may be combined as appropriate.

1 to 4 ... mounting tool (lockout key mounting tool for breaker) 10, 70, 100 ... movable member 11 ... shaft portion 12 ... operation portion 12a ... locking hole 12b ... unlocking hole 20 ... fixing member 21 ... upper bearing portion ( Bearing section 22 Lower bearing section (bearing section) 24 Key mounting section 50 Main fixing section 60 Secondary fixing section 62 Key mounting section 82 Fixed side key mounting section 102 Movable side key mounting section B Breaker R: Lockout key S: Switch

Claims (5)

1. A fixing member fixed immovably to the breaker,
   A movable member attached to the fixed member;
   The lockout key fixture for a breaker, wherein the movable member is movable between a locked position in contact with or close to the switch of the breaker and an unlocked position spaced apart from the switch.
2. One of the fixed member and the movable member is provided with a key attachment portion to which a lockout key is attached;
   The other of the fixed member and the movable member is provided with a lock hole into which the key attachment portion can enter.
   The lockout key fixture for a breaker according to claim 1, wherein the movable member is positioned at the lock position when the key attachment portion is in the lock hole.
3. The movable member has a shaft portion and an operation portion.
   The fixing member has a bearing that rotatably and slidably supports the shaft.
   The lockout key fixture for a breaker according to claim 2, wherein the lock hole is formed in the operation portion.
4. Among the fixed member and the movable member, an unlock hole into which the key attachment portion can be inserted is provided at a distance from the lock hole in a direction in which the lock hole is provided. The lockout key fixture for a breaker according to claim 2 or 3.
5. The fixed member is provided with a fixed side key attachment portion to which a lockout key is attached,
   The movable member is provided with a movable side key attachment portion to which the lockout key is attached;
   The breaker lock according to claim 1, wherein the movable member is configured to be positioned at the lock position when the lockout key is attached to the fixed side key attachment portion and the movable side key attachment portion. Out key fitting.

Images