CN111344827B - Locking bolt mounting piece for circuit breaker - Google Patents

Abstract

A breaker latch attachment (1) is provided with a fixed member (20) that is fixed so as to be immovable relative to a breaker, and a movable member (10) that is attached to the fixed member (20). The movable member (10) is movable between a locked position in contact with or close to a switch of the circuit breaker and an unlocked position separated from the switch.

Description

Locking bolt mounting piece for circuit breaker

The present application claims priority based on japanese patent application No. 2017-222226, filed in japan on 11/17/2017, the contents of which are incorporated herein by reference.

Technical Field

The invention relates to a locking bolt (Japanese: ロックアウトキー) mounting piece for a circuit breaker.

Background

In order to ensure safety of an operator during inspection work of a mechanical device, a switch of a circuit breaker may be locked to prevent the switch from being turned on by accident and turned on. When a switch of a circuit breaker is locked, a lock bolt mounting member for the circuit breaker (hereinafter, simply referred to as a mounting member) and a lock bolt are generally used in combination.

For example, in the fixture of patent document 1, the toggle screw is operated to grip the switch of the circuit breaker by the base and the claw, thereby restricting the rotation of the switch. The toggle screw cannot be operated while the lock bolt such as a padlock is locked to the attachment. Therefore, the switch of the circuit breaker cannot be rotated until the lock bolt is unlocked and removed, and the switch can be prevented from being accidentally turned on.

Documents of the prior art

Patent literature

Patent document 1: japanese laid-open patent publication No. 2015-536525

In the structure of patent document 1, when inspecting a mechanical device or the like, an inspection worker needs to mount the device to a breaker or the like with holding the device every time, which causes a problem of complicated work.

In order to prevent the mounting from being detached from the switch of the circuit breaker, the switch needs to be held by the base and the claw with a strong force. As a result, the switch held may be ground or damaged. In particular, when the circuit breaker is installed in a clean room or the like, it is necessary to suppress the generation of chips, and therefore, there is a need for a mounting member that does not require a strong force to hold the switch.

Disclosure of Invention

The present invention has been made in view of the above circumstances, and an object thereof is to provide a mounting device that facilitates the operation of restricting the rotation of a switch of a circuit breaker and does not require a strong force to hold the switch.

Means for solving the problems

In order to solve the above problem, a first aspect of the present invention provides a breaker locking bolt mounting device (hereinafter simply referred to as a mounting device) including a fixed member fixed so as to be immovable relative to a breaker, and a movable member attached to the fixed member and movable between a locked position in contact with or close to a switch of the breaker and an unlocked position in spaced relation to the switch.

The mounting device according to the above aspect includes a fixed member fixed so as not to be movable relative to the circuit breaker, and a movable member attached to the fixed member. Therefore, the mounting device can be always provided near the circuit breaker even in a normal state (when the inspection work or the like is not performed), and the mounting device does not need to be held in the inspection work or the like. Further, by fixing the movable member at the lock position, the locked state can be easily achieved.

Further, since the mounting member can be used by being attached to a wall surface or the like near the circuit breaker, it is not necessary to attach the mounting member by holding the switch of the circuit breaker with a strong force. Therefore, the occurrence of grinding or the like of the switch can be suppressed.

Here, a bolt attachment portion to which a locking bolt is attached may be provided on one of the fixed member and the movable member, a locking hole into which the bolt attachment portion is insertable may be provided on the other of the fixed member and the movable member, and the movable member may be located at the locking position when the bolt attachment portion is inserted into the locking hole.

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

In addition, an unlocking hole into which the plug mounting portion can enter may be provided at a distance from the locking hole in one of the fixed member and the movable member in which the locking hole is provided.

In this case, the lock bolt can be easily set to the unlock state by attaching the lock bolt to the bolt attachment portion in a state where the bolt attachment portion is inserted into the unlock hole. In addition, the lock plug can be stored in a state in which it is attached to the mounting member, and the lock plug can be prevented from being lost or the like, in a normal state in which an inspection operation of the mechanical device or the like is not performed.

The movable member may have a shaft portion and an operating portion, the fixed member may have a bearing portion that rotatably and slidably supports the shaft portion, and the lock hole may be formed in the operating portion.

In this case, the movable member is pivoted about the shaft portion by operating the operating portion, and the bolt attachment portion is inserted into the lock hole formed in the operating portion, whereby the locked state can be more easily achieved. Further, since the lock hole is formed in the operating portion, the operation of aligning the lock hole and the plug attachment portion can be made easier.

In addition, the fixed member may be provided with a fixed-side bolt attachment portion to which a lock bolt is attached, and the movable member may be provided with a movable-side bolt attachment portion to which the lock bolt is attached, and the lock bolt attachment for a circuit breaker may be configured such that the movable member is located at the lock position when the lock bolt is attached to the fixed-side bolt attachment portion and the movable-side bolt attachment portion.

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

Effects of the invention

According to the above aspect of the present invention, it is possible to provide a breaker lock bolt attachment that facilitates the operation of restricting the rotation of the switch of the breaker and does not require a strong force to hold the switch.

Drawings

Fig. 1 is a view showing the mount (unlocked state) of the first embodiment, with part (a) being a front view, part (b) being a side view, and part (c) being a top view.

Fig. 2 is a view showing the mount (locked state) according to the first embodiment, in which part (a) is a front view and part (b) is a side view.

Fig. 3 is a single view of the movable member of the first embodiment, in which part (a) is a front view, part (b) is a side view, and part (c) is a plan view.

Fig. 4 is a single-piece view of the fixing member according to the first embodiment, where part (a) is a front view, part (b) is a side view, and part (c) is a plan view.

Fig. 5A is a diagram showing a state in which a lock bolt is attached to the mount (unlocked state) of the first embodiment.

Fig. 5B is a diagram showing a state in which a lock bolt is attached to the attachment (locked state) of the first embodiment.

Fig. 6 is a single-piece view of a movable member according to a modification of the first embodiment, where part (a) is a front view, part (b) is a side view, and part (c) is a plan view.

Fig. 7 is a single-piece view of a movable member according to another modification of the first embodiment, where part (a) is a front view, part (b) is a side view, and part (c) is a plan view.

Fig. 8 is a single-piece view of a fixing member according to a modification of the first embodiment, where part (a) is a front view, part (b) is a side view, and part (c) is a plan view.

Fig. 9 is a front view of the mount (unlocked state) of the second embodiment.

Fig. 10 is a front view of the mount (locked state) of the second embodiment.

FIG. 11 is a front view of the mount of the third embodiment.

Fig. 12 is a single-piece view of the sub-mount member of fig. 11, in which part (a) is a front view, part (b) is a side view, and part (c) is a bottom view.

Fig. 13 is a perspective view of the movable member of fig. 11, with part (a) being a front view, part (b) being a side view, and part (c) being a bottom view.

Fig. 14 is a view showing a use state of the mount of fig. 11.

Fig. 15 is a view showing the mount (locked state) of the fourth embodiment, in which the (a) portion is a front view, the (b) portion is a side view, and the (c) portion is a plan view.

Fig. 16 is a single view of the fixing member of the fourth embodiment, in which part (a) is a front view, part (b) is a side view, and part (c) is a plan view.

Fig. 17 is a single-piece view of an auxiliary fixing member according to the fourth embodiment, in which part (a) is a front view and part (b) is a side view.

Fig. 18 is a perspective view of a movable member according to a fourth embodiment, in which part (a) is a front view, part (b) is a side view, and part (c) is a plan view.

Fig. 19 is a view showing the mount (unlocked state) of the fourth embodiment, with part (a) being a front view, part (b) being a side view, and part (c) being a top view.

Detailed Description

(first embodiment)

Hereinafter, a structure of a breaker lock plug attachment according to a first embodiment will be described with reference to fig. 1 to 5B.

The locking bolt mounting device for a circuit breaker of the present embodiment (hereinafter simply referred to as the mounting device 1) is used, for example, in the vicinity of a circuit breaker such as a substrate processing apparatus.

As shown in parts (a) to (c) of fig. 1, the mounting fixture 1 includes a fixed member 20 fixed to a wall surface of a building or the like, and a movable member 10 attached to the fixed member 20. The fixing member 20 is fixed to a wall surface on which the breaker is provided, and is fixed so as not to move relative to the breaker. 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 of a building or the like. The movable member 10 is provided movably relative to the fixed member 20.

(Direction definition)

Here, in the present embodiment, an XYZ rectangular coordinate system is set to describe the positional relationship of the respective structures. Hereinafter, the Z direction is referred to as the vertical direction, the X direction is referred to as the horizontal direction, and the Y direction is referred to as the front-rear direction. The tip side of the arrow of the Z axis in the vertical direction is referred to as the upper side, and the opposite side is referred to as the lower side. The tip side of the arrow on the X axis in the left-right direction is referred to as the right side, and the opposite side is referred to as the left side. The tip side of the arrow on the Y axis in the front-rear direction is referred to as the back side, and the opposite side is referred to as the front side. The mounting member 1 is viewed from the top-bottom direction as a plan view, from the front-rear direction as a front view, and from the left-right direction as a side view.

(fixing member)

As shown in fig. 4 (a) to (c), the fixing member 20 includes an upper bearing 21 (bearing), a lower bearing 22 (bearing), a fixing portion 23, and a plug attachment portion 24. The respective portions 21 to 24 of the fixing member 20 are integrally formed.

The upper bearing portion 21 and the lower bearing portion 22 are arranged at an interval in the vertical direction, and support the shaft portion 11 in pairs to be rotatable and slidable. As shown in fig. 4 (c), the upper bearing 21 and the lower bearing 22 are formed in a U shape in a plan view.

The fixing portion 23 is formed in a plate shape extending in the vertical direction and the horizontal direction. The fixing portion 23 is connected to the right ends of the upper bearing portion 21 and the lower bearing portion 22. The fixing portion 23 is formed with two fastening holes 23a, 23b penetrating the fixing portion 23 in the front-rear direction. The two fastening holes 23a and 23b are arranged at an interval in the vertical direction. Bolts or the like are inserted into the two fastening holes 23a and 23b. The two fastening holes 23a, 23b serve as fastening holes for fixing the fixing portion 23 to a wall surface of a building or the like. The fastening holes 23a and 23b are not limited to through holes, and may be threaded holes.

As shown in fig. 4 (b), the plug attachment portion 24 protrudes from the fixing portion 23 toward the front side. The plug attachment portion 24 is formed in a plate shape extending in the vertical direction and the front-rear direction. The plug attachment portion 24 is formed with a circular plug attachment hole 24a penetrating the plug attachment portion 24 in the left-right direction. A shackle of a padlock as the lock bolt R is inserted into the bolt mounting hole 24a (see fig. 5A).

(Movable Member)

As shown in parts (a) to (c) of fig. 3, the movable member 10 includes a shaft portion 11, an operation portion 12, and a connecting portion 13 connecting the shaft portion 11 and the operation portion 12 to each other. The respective 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. As shown in fig. 1 (a) and (c), the shaft 11 is located inside the upper bearing 21 and the lower bearing 22 of the fixed member 20.

As shown in parts (a) to (c) of fig. 3, the operation portion 12 is formed in a plate shape extending in the vertical direction and the horizontal direction. The operation portion 12 is formed with a lock hole 12a and an unlock hole 12b penetrating the operation portion 12 in the front-rear direction. The lock hole 12a and the unlock hole 12b have the same shape 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 vertical length of the lock hole 12a and the unlock hole 12b is larger than the vertical length of the plug attachment portion 24 of the fixing member 20. The length of the lock hole 12a and the unlock hole 12b in the left-right direction is larger than the length (thickness) of the plug mounting portion 24 in the left-right direction. The bolt mounting portion 24 can enter the lock hole 12a and the unlock hole 12b.

The connecting portion 13 is formed with an assembly hole 14 penetrating the connecting portion 13 in the front-rear direction. The assembly hole 14 is formed in a rectangular shape longer in the vertical direction than in the horizontal direction. As shown in fig. 1 (a), a lower bearing portion 22 of the fixing member 20 is inserted into the assembly hole 14. When the movable member 10 is moved up and down with respect to the fixed member 20, the lower bearing portion 22 abuts against the upper end edge 14a or the lower end edge 14b of the assembly hole 14. With this configuration, the range in which the movable member 10 can move up and down is determined.

Next, the operation of the mounting device 1 configured as described above will be described.

Here, as shown in fig. 5A and 5B, a case will be described as an example in which the mounting fixture 1 is fixed to a wall surface W of a clean room or the like and restricts rotation of a switch S of a breaker B provided in a pit of the wall surface W. Although not shown in detail, bolts are inserted into the fastening holes 23a and 23b of the fixing member 20, and the fixing member 20 is fixed to the wall surface W by screwing the bolts into nuts or the like embedded in the wall surface W. The fixing member 20 is fixed to the wall surface W so as not to be movable with respect to the breaker B.

(unlocked state)

Fig. 5A shows a case where the mount 1 is in an unlocked state. Here, the unlock state refers to a state in which the rotation of the switch S is not restricted. In the unlocked state, the movable member 10 is separated upward from the switch S, and the switch S can be freely rotated. In this 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 plug attachment portion 24 enters the unlocking hole 12b of the movable member 10 (see the portion (a) in fig. 1). In the unlocked state, the lock bolt R is attached to the bolt attachment portion 24, whereby the lock bolt R can be stored in a normal state (without performing an inspection operation or the like).

(locked state)

Next, a case where the current supply state of the disconnecting breaker B is maintained for checking the mechanical device and the like will be described. Fig. 5B shows a case where the mount 1 is in a locked state. Here, the locked state refers to a state in which the rotation of the switch S is restricted. In the locked state, the switch S is lowered and the energization of the breaker B is interrupted, and the movable member 10 abuts on or approaches the switch S from above. Therefore, the rotation of the switch S is restricted. In this 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 abuts or approaches the switch S is referred to as a lock position.

In the locked state, the plug attachment portion 24 enters the lock hole 12a of the movable member 10 (see the portion (a) of fig. 2). When the movable member 10 is moved up and down in this state, the pin attachment portion 24 abuts against the inner edge of the lock hole 12a, and therefore the relative up-and-down movement of the movable member 10 and the fixed member 20 is restricted within a predetermined range. A lock bolt R such as a padlock is attached to the bolt attachment portion 24. Therefore, the rotation of the movable member 10 with respect to the fixed member 20 is also restricted.

With the above configuration, when the inspection work of the substrate processing apparatus or the like is performed, the mounting device 1 is locked to the lock bolt R, thereby preventing the switch S of the breaker B from being accidentally turned to be in the energized state.

(method of operation)

When the locked state and the unlocked state are switched, the movable member 10 is rotated forward about the shaft portion 11 in a state where the lock bolt R is removed (see the two-dot chain line of the portion (c) in fig. 1). Thereby, the plug attachment portion 24 is disengaged from the inside of the lock hole 12a or the inside of the unlock hole 12b, and the movable member 10 is in a state of being movable up and down with respect to the fixed member 20.

Next, the movable member 10 is moved up and down with respect to the fixed member 20, and the lock hole 12a or the unlock hole 12b is aligned with the plug attachment portion 24 in the vertical direction. Then, the movable member 10 is rotated rearward about the shaft portion 11, and the plug attachment portion 24 is inserted into the lock hole 12a or the unlock hole 12b.

Then, the hook of the lock bolt R is inserted into the bolt mounting hole 24a, and the lock bolt R is locked. This causes the lock state or the unlock state.

As described above, the mounting fixture 1 according to the present embodiment includes the fixed member 20 fixed to the wall surface W so as to be immovable with respect to the breaker B, and the movable member 10 attached to the fixed member 20. Therefore, the mounting member 1 can be always provided near the breaker B even in a normal state, and it is not necessary to hold the mounting member 1 in an inspection operation or the like.

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, the circuit breaker B can be prevented 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 work is finished.

Further, the lock bolt R is mounted on the bolt mounting portion 24 by inserting the bolt mounting portion 24 into the lock hole 12a or the unlock hole 12b, so that the locked state and the unlocked state can be easily switched.

In a normal state where the inspection work of the mechanical device or the like is not performed, the mounting tool 1 can be set to the unlocked state, and the lock bolt R can be mounted to the bolt mounting portion 24. This can prevent the lock pin R from being lost.

In the locked state, the movable member 10 abuts or approaches the switch S from above, thereby restricting the rotation of the switch S. Therefore, compared to a case where the attachment is attached by holding the switch S with a strong force, for example, grinding or the like of the switch S can be suppressed. In particular, when the breaker B is installed in a clean room or the like, suppression of the generation of chips is required, and therefore the mounting 1 of the present embodiment can be suitably used.

As shown in fig. 2 (a), in the locked state, the fastening holes 23a and 23b of the fixed member 20 are covered by the operating portion 12 of the movable member 10. Therefore, for example, the action of removing the attachment 1 by removing the bolt inserted through the fastening hole 23b is suppressed, and the locked state can be maintained more reliably.

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

For example, although the unlocking hole 12b is provided in the movable member 10 in the above embodiment, such an unlocking hole 12b may not be provided. In this case, for example, the movable member 10 may be rotated 180 ° about the shaft portion 11 from the state shown in the portions (a) to (c) of fig. 1 to retract the movable member 10 from the switch S of the breaker B, thereby setting the state to the unlocked state.

In the above embodiment, the movable member 10 is provided with the lock hole 12a and the unlock hole 12b, and the fixed member 20 is provided with the plug attachment portion 24, but the relationship may be reversed. That is, the movable member 10 may be provided with a plug attachment portion 24 for attaching the locking plug R, and the fixed member 20 may be provided with a lock hole 12a and an unlock hole 12b into which the plug attachment portion 24 can be inserted.

Further, the movable member 10 is provided with two holes (the lock hole 12a and the unlock hole 12 b) into which the bolt attachment portions 24 can enter, but three or more holes may be provided.

The use state shown in fig. 5A and 5B is an example, and the position of the fixing member 1 can be appropriately changed according to the structure of the portion where the breaker B is provided. For example, when the circuit breaker B is housed in the housing, the fixing member 20 may be fixed to the housing.

As shown in fig. 6 (a) to (c), the movable member 10 may have plate-shaped protrusions 12c and 12d extending forward from the lock hole 12a and the unlock hole 12b of the operating portion 12, respectively. In this case, the lock bolt R may be attached to the through holes 12c1 and 12d1 formed in the convex portions 12c and 12d, respectively, together with the bolt attachment hole 24a.

As shown in parts (a) to (c) of fig. 7, 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 up-down direction. In this case, as shown in parts (a) to (c) of fig. 8, the bolt attachment portion 24 of the fixing member 20 is also formed to be long in the left-right direction, so that the bolt attachment portion 24 can be inserted into the lock hole 12a and the unlock hole 12b.

(second embodiment)

Next, a second embodiment of the present invention will be described, but the basic configuration is the same as that of the first embodiment. Therefore, the same components are denoted by the same reference numerals, and the description thereof is omitted, and only different points will be described.

As shown in fig. 9, the mounting device 2 of the present embodiment includes a plate-like fixed member 30 and a rod-like movable member 40.

The fixed member 30 is fixed so as not to move 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 forward from the fixing portion 31, a lower bearing portion 32, a first pin attaching portion 33, and a second pin attaching portion 34. The fixing portion 31 is formed in a plate shape extending in the vertical direction and the horizontal direction. The upper bearing 35, the lower bearing 32, the first bolt mounting portion 33, and the second bolt mounting 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 arranged at a vertical interval. An upper bearing hole 35a is formed in the upper bearing portion 35, and a lower bearing hole 32a is formed in the lower bearing portion 32. The upper bearing hole 35a and the lower bearing hole 32a are disposed at the same position in the left-right direction and the front-rear direction.

The first and second bolt attaching portions 33 and 34 are disposed at a vertical interval and are positioned on the right side of the upper and lower bearing portions 35 and 32. The first plug mounting portion 33 is located above the second plug mounting portion 34. The first and second bolt attaching portions 33 and 34 are located between the upper and lower bearing portions 35 and 32 in the vertical direction. A first bolt mounting hole 33a is formed in the first bolt mounting portion 33, and a second bolt mounting hole 34a is formed in the second bolt mounting portion 34. The first and second plug attachment holes 33a and 34a are disposed at the same positions in the left-right direction and 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 portion 42. The upper shaft 41 and the lower shaft 43 are disposed apart in the vertical direction and connected to each other by the operating portion 42. The upper shaft 41 is inserted into the upper bearing hole 31a, and the lower shaft 43 is inserted into the lower bearing hole 32a. Thereby, the movable member 40 rotates around the upper bearing hole 31a and the lower bearing hole 32a with respect to the fixed member 30. The movable member 40 is slidable in the vertical direction with respect to the fixed member 30.

When the attachment 2 is in the unlocked state, as shown in fig. 9, the first plug attachment portion 33 is inserted into the inside of the operation portion 42, and the lock plug is attached to the first plug attachment hole 33 a. On the other hand, when the attachment 2 is in the locked state, as shown in fig. 10, the second plug attachment portion 34 is inserted into the operation portion 42, and the lock plug is attached to the second plug attachment hole 34a. In the locked state, the lower shaft portion 43 is in a state of protruding downward more largely than in the unlocked state. This allows the lower shaft portion 43 to come into contact with the switch S of the breaker B from above in the locked state (see fig. 5B).

As described above, in the present embodiment, the inside of the U-shaped operating portion 42 functions as a lock hole into which the plug attachment portion 33 can be inserted.

(third embodiment)

Next, a third embodiment of the present invention will be described, but the basic configuration is the same as that of the first embodiment. Therefore, the same components are denoted by the same reference numerals, and description thereof is omitted, and only different points will be described.

In the present embodiment, a case where the breaker B has a plurality of switches S or a case where a plurality of breakers B are arranged in parallel is assumed. In this case, a plurality of the mounting members 1 according to the first embodiment may be arranged in the lateral direction, but since the fixing operation requires much labor and time to adjust the height, the fixing members may be integrated into one member. In this case, a configuration as shown in fig. 11 may be considered.

As shown in fig. 11, the mount 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 pin attaching 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 portion 60 includes a fixing portion 61 fixed to a wall surface or the like and a plug attachment portion 62, and is formed in an L-shaped plate shape when viewed from the top-bottom direction. The fixing portion 61 is formed in a plate shape extending in the vertical direction and the horizontal direction. The fixing portion 61 is formed with a plurality of fastening holes 61a. The fastening hole 61a is for inserting a bolt or the like for fixing the sub-fixing portion 60 to the wall surface. The plug 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. The plug mounting portion 62 has a plug mounting hole 62a.

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

As shown in fig. 11 and 14, the main fixing portion 50 includes a plate-shaped fixing portion 51 and a substantially cylindrical rotation holding portion 52. The fixing portion 51 has a plurality of fastening holes 51a. The rotation holding portion 52 protrudes forward from the fixing portion 51, 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 rotation holding portion 52 is formed with the slit 52C facing the front side, the rotation holding portion 52 has a C-shape when viewed from the left-right direction (see fig. 14). As shown in fig. 11, the slit 52c extends in the left-right direction. A plurality of upper cutout portions 52a are formed at intervals in the left-right direction in the portion of the rotation holding portion 52 above the slit 52 c. A plurality of lower cutout portions 52b are formed at intervals in the left-right direction in a portion of the rotation holding portion 52 below the slit 52 c. The upper cutout 52a and the lower cutout 52b are disposed at the same position in the left-right direction. The upper cutout 52a and the lower cutout 52b have the same width in the lateral direction, 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 in a right portion 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 portion 71 in the left-right direction. Thereby, the shaft portion 71 can be inserted into the rotation holding portion 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 rotation holding portion 52 in the vertical direction. When the connecting portion 73 is located at the same position as the slit 52C in the vertical direction, that is, when the operating portion 72 is in a posture substantially orthogonal to the fixed portion 51, the shaft portion 71 can slide in the left-right direction in the rotation holding portion 52. That is, the main fixing portion 50 supports the movable member 70 slidably and rotatably. Further, while the connection portion 73 is positioned in the upper cutout portion 52a or the lower cutout portion 52b, the movement of the movable member 70 in the left-right direction with respect to the main fixing portion 50 is restricted.

Next, a method of using the mounting device 3 according to the present embodiment will be described with reference to fig. 11 and 14. 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 the positional relationship shown in fig. 11 and 14. That is, the plurality of sub fixing portions 60 are disposed at intervals in the left-right direction on the lower side of the main fixing portion 50, and disposed at intervals in the left-right direction on the upper side of the main fixing portion 50. The sub-fixing portion 60 disposed above the main fixing portion 50 functions to hold the movable member 70 in the unlocked state, but the sub-fixing portion 60 may not be provided.

When the attachment 3 is in the locked state, as shown by the solid line in fig. 11 and fig. 14, the plug attachment portion 62 of the lower sub-fixing portion 60 is inserted into the locking hole 72a of the movable member 70, and the locking plug is attached to the plug attachment hole 62a. In this state, the lower end of the operating portion 72 of the movable member 70 abuts on the switch S of the breaker B from above, and therefore, the operation of the switch S is restricted. Further, the upward rotation of the operation portion 72 is restricted by the lock bolt.

On the other hand, to unlock the attachment 3, the lock bolt attached to the bolt attachment hole 62a is removed, and the operation portion 72 is rotated upward. At this time, the shaft portion 71 of the movable member 70 is held and rotated by the rotation holding portion 52. Then, the operating portion 72 is rotated upward, and the plug attachment portion 62 of the upper sub-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. When the lock bolt is attached to the bolt attachment hole 62a of the bolt attachment portion 62, the operating portion 72 can be kept in the upward position.

As described above, according to the mounting device 3 of the present embodiment, since the plurality of movable members 70 can be arranged in the left-right direction, it can be suitably used for the breaker B in which the plurality of switches S are arranged in a line in the left-right direction.

(fourth embodiment)

Next, a fourth embodiment of the present invention will be described, but the basic configuration is the same as that of the first embodiment. Therefore, the same components are denoted by the same reference numerals, and the description thereof is omitted, and only different points will be described.

As shown in parts (a) to (c) of fig. 15, the mounting fixture 4 of the present embodiment includes a fixed member 80, an auxiliary fixed member 90, and a movable member 100. The fixing member 80 is fixed to a wall surface or the like on which the breaker is provided so as not to move relative to the breaker. The auxiliary fixing member 90 is fixed to the fixing member 80. The movable member 100 is movably provided to the fixed member 80 and the auxiliary fixed member 90.

As shown in parts (a) to (c) of fig. 16, the fixing member 80 includes a fixing portion 81 and a fixing-side plug attachment portion 82. The respective 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 horizontal direction. The fixing portion 81 is formed with two fastening holes 81a, 81b penetrating the fixing portion 81 in the front-rear direction. The two fastening holes 81a and 81b are arranged at an interval 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, 81b are used as fastening holes for fixing the fixing portion 81 to a wall surface of a building or the like. The fastening holes 81a and 81b are not limited to through holes, and may be threaded holes or the like.

As shown in fig. 16 (b), the fixing-side plug attachment portion 82 protrudes from the fixing portion 81 toward the front side. The fixed-side plug attachment portion 82 is formed in a plate shape extending in the up-down direction and the front-rear direction. The fixed-side plug mounting portion 82 is formed with a circular fixed-side plug mounting hole 82a that penetrates the fixed-side plug mounting portion 82 in the left-right direction. A shackle of a padlock as the lock bolt R is inserted into the fixed-side bolt mounting hole 82a.

As shown in fig. 17 (a) and (b), the auxiliary fixing member 90 includes a holding portion 91, a first protrusion 92, and a second protrusion 93. The respective portions 91 to 93 of the auxiliary fixing member 90 are integrally formed. The holding portion 91 is formed in a plate shape extending in the vertical direction and the horizontal direction. The holding portion 91 is formed with two fastening holes 91a and 91b penetrating the holding portion 91 in the front-rear direction. The two fastening holes 91a and 91b are arranged at intervals in the vertical direction. The distance between the fastening hole 91a and the fastening hole 91b and the distance between the fastening hole 81a and the fastening hole 81b of the fixing member 80 are substantially the same. Therefore, when the fastening holes 91a and the fastening holes 81a overlap each other in the front-rear direction, the fastening holes 91b and the fastening holes 91b can overlap each other 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 91a toward the inner side. The second protrusion 93 extends from the inner peripheral edge of the fastening hole 91b toward the back side. The first protrusion 92 and the second protrusion 93 have substantially the same length in the front-rear direction.

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, a movable member 100 is disposed between the auxiliary fixing member 90 and the fixing member 80. When the mounting fixture 4 is mounted on 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 the parts (a) to (c) in fig. 15. At this time, the tip end portion of one bolt protrudes to the rear side of the mount 4 through the fastening holes 91a, 81 a. The tip end of the other bolt protrudes to the rear side of the attachment 4 through the fastening holes 91b and 81b. The mounting tool 4 can be fixed to a wall surface or the like by fastening the distal end portions of these bolts to the wall surface or the like. At the same time, the auxiliary fixing member 90 can be fixed to the fixed member 80, and the movable member 100 can be attached to the fixed member 80.

The auxiliary fixing member 90 may be formed integrally with the fixing member 80 by 3D printing or the like, for example. Further, a part of the auxiliary fixing member 90 (for example, the projections 92 and 93) may be formed integrally with the fixing member 80. In this case, the projections 92 and 93 may extend from the inner peripheral edges of the fastening holes 81a and 81b toward the front side. The shape of the holding portion 91 may be appropriately changed as long as the movable member 100 does not fall off from the fixed member 80 toward the front side. For example, a flange-like portion may be formed at the front end of the projections 92 and 93, and the flange-like portion may be used as the holding portion 91.

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

The vertical groove portion 103a extends linearly in the vertical direction. The vertical length of the vertical groove 103a is greater than the length from the upper end of the first projection 92 to the lower end of the second projection 93. The first lateral groove portion 103b extends rightward from the middle portion of the vertical groove portion 103a in the vertical direction. The first horizontal groove 103b is inclined to gradually go upward toward the right. The second lateral groove 103c extends rightward from the lower end of the vertical groove 103 a. The second lateral groove 103c is inclined to gradually go upward toward the right. The first lateral groove 103b and the second lateral groove 103c are arranged at an interval in the vertical direction. The vertical distance between the first horizontal groove 103b and the second horizontal groove 103c 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 103b, the second protrusion 93 can be positioned in the second lateral groove 103c.

The movable-side plug attachment portion 102 protrudes from the body 101 toward the front side. The movable-side plug attachment portion 102 is formed in a plate shape extending in the vertical direction and the front-rear direction. The movable-side plug attachment portion 102 is formed with a circular movable-side plug attachment hole 102a that penetrates the movable-side plug attachment portion 102 in the left-right direction. A shackle of a padlock as the lock bolt R is inserted into the movable-side bolt mounting 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 projection 92 and the second projection 93 of the auxiliary fixing member 90 are positioned in the groove 103.

Here, the first projection 92 and the second projection 93 are configured to be movable in the groove 103. More specifically, the outer diameters of the projections 92 and 93 are smaller than the width of the vertical groove 103a in the left-right direction. The outer diameters of the projections 92 and 93 are smaller than the vertical widths of the horizontal grooves 103b and 103c. The projections 92 and 93 have a dimension in the front-rear direction larger than the thickness of the body 101 of the movable member 100 in the front-rear direction. With the above configuration, the movable member 100 can move relative to the fixed member 80 while being sandwiched between the fixed member 80 and the auxiliary fixed member 90.

When the attachment 4 of the present embodiment is set in the locked state, the fixed-side plug attachment portion 82 and the movable-side plug attachment portion 102 are aligned in the vertical direction as shown in portions (a) to (c) of fig. 15. Further, the lock bolt R is attached to the fixed-side bolt attachment hole 82a and the movable-side bolt attachment hole 102a (see fig. 5B). Thereby, the position of the movable member 100 in the vertical direction with respect to the fixed member 80 is fixed. At this time, the lower end of the movable member 100 is in a state of protruding greatly downward with respect to the lower end of the fixed member 80. In the present embodiment, as described above, when the lock bolt R is attached to the fixed-side bolt attachment portion 82 and the movable-side bolt attachment portion 102, the movable member 100 is positioned at the lock position. That is, the movable member 100 comes into contact with or approaches the switch S of the breaker B, and the switch S is in a state where it cannot rotate (see fig. 5B).

When the attachment 4 is in the unlocked state, the projections 92 and 93 are positioned in the lateral grooves 103b and 103c as shown in fig. 19 (a) to (c). The position of the movable member 100 in the vertical direction in this state is located above the position of the movable member 100 at the lock position. At this time, even if the hand is separated from the movable member 100, the projections 92 and 93 abut on the upper inner surfaces of the lateral groove portions 103b and 103c. That is, the projections 92 and 93 are locked in the lateral groove portions 103b and 103c by the self weight of the movable member 100, and the downward movement of the movable member 100 is restricted. Further, the horizontal groove portions 103b and 103c are inclined, whereby the position of the movable member 100 in the left-right direction is stabilized. In the present embodiment, as described above, when the projections 92 and 93 are positioned in the lateral groove portions 103b and 103c, the movable member 100 is positioned at the unlock position. That is, the movable member 100 is separated upward from the switch S of the breaker B, and the switch S is rotatable (see fig. 5A).

As described above, the mounting 4 of the present embodiment is configured such that the movable member 100 is positioned at the lock position when the lock bolt R is attached to the fixed-side bolt attachment portion 82 and the movable-side bolt attachment portion 102. Therefore, the movable member 100 can be fixed to the lock position by a simple operation of attaching the lock bolt R to the fixed-side bolt attachment portion 82 and the movable-side bolt attachment portion 102.

In addition, the lock bolt R may be attached to the fixed-side bolt attachment portion 82 or the movable-side bolt attachment portion 102 in a state where the movable member 100 is positioned at the unlock position. Thus, the lock bolt R can be stored in advance when the inspection work is not performed.

The lateral groove portions 103b and 103c may extend linearly in the left-right direction without being inclined. In this case, the position of the movable member 100 in the vertical direction when it is located at the lock position can also be regulated. In this case, a restricting portion may be provided to restrict the movement from the inside of the lateral groove portions 103b and 103c of the projections 92 and 93 to the inside of the vertical groove portion 103 a. The restricting portions may be, for example, protrusions protruding downward from left end portions of upper inner surfaces of the lateral groove portions 103b and 103c.

In addition, the components in the above-described embodiments may be replaced with known components as appropriate without departing from the scope of the present invention, and the above-described embodiments and modifications may be combined as appropriate.

Description of the symbols

1 to 4 … mounting pieces (locking pin mounting pieces for circuit breakers), 10, 70, 100 … movable parts, 11 … shaft parts, 12 … operating parts, 12a … locking holes, 12B … unlocking holes, 20 … fixed parts, 21 … upper side bearing parts (bearing parts), 22 … lower side bearing parts (bearing parts), 24 zxft 3584 pin mounting parts, 50 … main fixing parts, 60 … auxiliary fixing parts, 62 … pin mounting parts, 82 6262 zxft 62 fixed side pin mounting parts, 62102 3256 zxft Pin mounting parts, B3456 circuit breakers, R … locking pins, S34 ….

Claims (3)

1. A locking bolt mounting piece for a breaker is characterized by comprising a fixed component which is fixed in a mode of not moving relative to the breaker and a movable component which is mounted on the fixed component,

the movable member is movable between a locked position abutting or approaching a switch of the circuit breaker and an unlocked position separated from the switch,

a bolt mounting portion for mounting a lock bolt is provided on one of the fixed member and the movable member,

a locking hole into which the plug mounting portion can enter is provided in the other of the fixed member and the movable member,

when the bolt mounting portion enters the locking hole, the movable member is located at the locking position,

in one of the fixed member and the movable member in which the lock hole is provided, an unlocking hole into which the plug mounting portion can enter is provided at a distance from the lock hole.

2. The locking bolt mounting for a circuit breaker of claim 1,

the movable member has a shaft portion and an operation portion,

the fixing member has a bearing portion for rotatably and slidably supporting the shaft portion,

the locking hole is formed in the operation portion.

3. The locking bolt mounting for a circuit breaker of claim 1,

the fixing part is provided with a fixing side bolt mounting part for mounting a locking bolt,

the movable member is provided with a movable side bolt mounting portion for mounting the lock bolt,

the lock bolt mounting for a circuit breaker is configured such that the movable member is located at the lock position when the lock bolts are mounted to the fixed-side bolt mounting portion and the movable-side bolt mounting portion.

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