JP7251176B2 - lock jig - Google Patents

Description

The present invention relates to a lock jig for fixing the position of a switchgear.

A switchgear has various devices such as circuit breakers, lightning arresters, instrument transformers, and station transformers in its housing. Various devices included in the switchgear are housed so as to be able to be pulled out from the housing, and are pulled out from the housing, for example, during periodic inspections. Various devices included in the switchgear are positioned at an insertion position (normal position) in which they are inserted into the housing during normal operation.

Such a switchgear has a drawer lock mechanism for fixing various devices in the insertion position. This prevents various devices from being carelessly pulled out of the housing. In the past, assuming the occurrence of a major earthquake, in addition to the drawer lock mechanism, an L-shaped jig was used to fix the various devices of the switchgear in the insertion position. .

Such an L-shaped jig is fixed to the switchgear using an existing hole provided in the switchgear. Specifically, the L-shaped jig has a through-hole provided in one of the two perpendicular faces of the L-shaped jig aligned with an existing hole provided in the switchgear, and one of the two faces Align the through-holes provided on the other side of the switchgear with the existing holes provided in the channel base that supports the switchgear from below, and attach it to the switchgear by screwing bolts into each of the through-holes and the existing holes. be done. As a result, various devices included in the switchgear are fixed in a state of being positioned at the insertion position.

As a related technology, specifically, conventionally, for example, a round head square root bolt having a polygonal neck (square root), a nut screwed to the shaft of the round head square root bolt, and a round head square root bolt A fixing jig having a detachment prevention plate having a locking portion projecting in the longitudinal direction of the shaft portion of the bolt, and a ball hole, sandwiched between the head and the nut of the round head square root bolt By using the overturn prevention tool for the switchboard realized by the plate material, by screwing the nut to the bolt with the locking part engaged with the hole, it is possible to place it in a place where the hands of the operator cannot reach. Even if there is, there is a technique for preventing the overturning accident during transportation of switchboards and the like (for example, see Patent Document 1 below).

JP 2013-121257 A

However, since the positions of the existing holes provided in the switchgear differ from switchgear to switchgear due to differences in model and model, the L-shaped jig can be installed using the existing holes as described above. The conventional mounting technique has the problem that it is troublesome because an L-shaped jig that matches the position of the existing hole must be used for each switchgear.

SUMMARY OF THE INVENTION An object of the present invention is to provide a lock jig that can securely fix a switchgear by utilizing an existing hole in order to solve the above-described problems of the prior art.

In order to solve the above-described problems and achieve the object, a locking jig according to the present invention has an angle shape bent at a right angle in the middle in the length direction, and the bending causes the inner surface to extend in the length direction. A first engaging portion having a wavy shape in which protruding portions and recessed portions appear alternately at the same pitch along the jig body; a jig body having a first through hole penetrating in the thickness direction and elongated in the length direction; a plurality of position fixing members each having a second engaging portion having a wave shape in which a portion and a recessed portion appear alternately; Characterized by

Further, in the locking jig according to the present invention, in the above invention, the first engaging portion and the second engaging portion are protruding portions that form a substantially triangular shape that is sharper toward the tip side and wider toward the root side. and the submerged portions form a waveform shape that alternately appears at the same pitch.

Further, in the locking jig according to the present invention, in the above invention, the first engaging portion and the second engaging portion are rectangular projecting portions having the same dimensions on the tip end side and the root side. It is characterized in that the submerged portions have a waveform shape that alternately appears at the same pitch.

Further, in the locking jig according to the present invention, in the above invention, the position fixing member has a substantially U-shape bent at two points in a direction perpendicular to the appearance direction of the protruding portion and the recessed portion. The second engaging portion is provided on at least the center surface of the surface located on the inner side.

Further, in the lock jig according to the present invention, in the above invention, the jig body has the first engaging portion on at least one side surface, and the position fixing member is positioned on the inner side by bending. The second engaging portion is provided on a surface of the jig body that faces the side surface on which the first engaging portion is provided.

Further, in the lock jig according to the present invention, in the above invention, the jig body includes the first engaging portions on both side surfaces, and the position fixing member is bent on all the surfaces positioned inside by bending. is provided with the second engaging portion.

Further, in the lock jig according to the present invention, in the above invention, the second through hole is larger than the inner diameter of the fixing hole provided in the switch gear to be fixed, and the fixing hole is provided. The opening is characterized by having a dimension smaller than the diameter dimension of the head of the bolt screwed into the hole.

According to the locking jig of the present invention, it is possible to reliably fix the switchgear using the existing holes.

1 is an explanatory diagram (part 1) showing a configuration of a lock jig according to an embodiment of the present invention; FIG. It is explanatory drawing (2) which shows the structure of the lock jig|tool of embodiment concerning this invention. FIG. 3 is an explanatory diagram (part 3) showing the configuration of the locking jig of the embodiment according to the present invention; It is explanatory drawing which shows the usage example of the lock jig|tool of embodiment concerning this invention. It is explanatory drawing which shows another usage example of the lock jig|tool of embodiment concerning this invention. FIG. 10 is an explanatory diagram (part 1) showing the configuration of a lock jig according to Embodiment 2 of the present invention; FIG. 9 is an explanatory diagram (part 2) showing the configuration of a locking jig according to Embodiment 2 of the present invention; FIG. 9 is an explanatory diagram (part 3) showing the configuration of the locking jig of the second embodiment according to the present invention;

A preferred embodiment of a lock jig according to the present invention will be described in detail below with reference to the accompanying drawings.

<Embodiment 1>
(Configuration of lock jig)
First, the structure of the lock jig of Embodiment 1 according to the present invention will be described. 1 to 3 are explanatory diagrams showing the configuration of a lock jig according to Embodiment 1 of the present invention. FIG. 1 shows an exploded perspective view of a lock jig according to Embodiment 1 of the present invention. FIG. 2 shows part of the lock jig according to Embodiment 1 of the present invention. FIG. 3 shows the appearance of a lock jig according to Embodiment 1 of the present invention.

1 to 3, a lock jig 100 according to Embodiment 1 of the present invention includes a jig body 110, a position fixing member 120, and a bolt 130. As shown in FIG. The jig body 110 has an angle shape bent at right angles in the middle in the length direction. Hereinafter, in this Embodiment 1, in the jig body 110, the portion extending from the bent portion to one side is referred to as a first main body portion 111, and the portion extending from the bent portion to the other side is referred to as a second main body portion. 112.

In the jig body 110, the first body portion 111 and the second body portion 112 each have a substantially flat plate shape. In the jig body 110, the two surfaces located inside and the two surfaces located outside by bending form a right angle.

The jig body 110 has a first engaging portion 113 . The first engaging portions 113 are provided on two inner surfaces of the jig body 110 . The first engaging portion 113 has a protruding portion (mountain) and a recessed portion (valley) along the direction in which the two perpendicular surfaces are continuous (hereinafter referred to as the “longitudinal direction of the jig body 110”). form a waveform that alternately appears.

The wavy shape of the first engaging portion 113 has a constant pitch along the length direction of the jig body 110, and the protruding portion and the recessed portion appear alternately. In addition, the wavy shape of the first engaging portion 113 has a uniform height of the protruding portion and a uniform depth of the recessed portion. The protruding portion and the recessed portion of the first engaging portion 113 are arranged in a direction parallel to each of the two perpendicular surfaces and perpendicular to the length direction of the jig body 110 (hereinafter referred to as “the direction of the jig body 110”). It is provided with a constant width along the "width direction").

When the jig main body 110 is viewed along the width direction, the first engaging portion 113 has a substantially triangular protruding portion and recessed portion which are sharpened toward the tip and widened toward the base at the same pitch. form a wavy shape that appears at The tip of the projecting portion forms the opening edge of the recessed portion, and the base of the projecting portion forms the bottom of the recessed portion. For this reason, the recessed portion forms a groove that narrows toward the bottom and becomes wider toward the opening.

In the jig main body 110, the first main body portion 111 and the second main body portion 112 are each provided with a first through hole 114 passing through the jig main body 110 along the plate thickness direction. The first through hole 114 has an elongated hole shape extending along the direction in which the first main body portion 111 and the second main body portion 112 are continuous.

The position fixing member 120 has a plate shape with a predetermined thickness. The position fixing member 120 has a rectangular shape surrounded by four sides, and the length dimension of at least one of the two pairs of opposing sides is equal to the width dimension of the jig body 110 . A second engaging portion 121 is provided on one surface of the position fixing member 120 . On one surface of the position fixing member 120, the second engaging portion 121 has protruding portions and recessed portions alternately appearing along one direction at the same pitch as the first engaging portions of the first engaging portion 113. form a wavy shape.

The position fixing member 120 is provided with a second through hole 122 penetrating through the position fixing member 120 in the plate thickness direction. The second through-hole 122 is, for example, the same size as the inner diameter of the existing hole in the switchgear (see FIGS. 4 and 5) to be fixed by the lock jig 100, or is larger than the inner diameter of the existing hole. The diameter of the head 131 of the bolt 130 is smaller than that of the head 131 of the bolt 130 .

(Usage example of lock jig 100)
Next, a usage example of the lock jig 100 of Embodiment 1 according to the present invention will be described. FIG. 4 is an explanatory diagram showing an example of use of the lock jig 100 of Embodiment 1 according to the present invention. As shown in FIG. 4, the lock jig 100 of Embodiment 1 according to the present invention is used to fix the position of the switch gear 400. As shown in FIG.

The switchgear 400 contains a power cable for supplying power drawn from a substation, and various devices connected to the power cable, such as circuit breakers, lightning arresters, instrument transformers, and in-station transformers. provided (not shown). The interior of the housing 401 is partitioned into a plurality of compartments, such as a cable compartment that accommodates power cables and transformers, and a circuit breaker compartment that accommodates circuit breakers, by partition walls or the like.

Various devices included in the switchgear 400 are accommodated so as to be drawn out from the housing 401 . Various devices included in the switch gear 400 are pulled out from the housing 401, for example, during periodic inspection. A housing 401 is provided with a handle 402 that is gripped when pulling out a device included in the switch gear 400 .

Of the various devices included in the switchgear 400 , casters and the like are provided on the lower side of the devices that can be pulled out from the housing 401 on the assumption that the various devices will be pulled out from the housing 401 . For this reason, for example, when a large earthquake or the like occurs and external force is applied to various devices to push them out of housing 401 , various devices are expected to pop out of housing 401 . Since various devices are heavy, it is difficult to restrain them once they start moving.

Some switch gears 400 are equipped with an existing drawer lock mechanism. Even if an attempt is made to suppress the movement of various devices only by the drawer lock mechanism, it is difficult to suppress the various devices once they have started to move, and there is a risk of damage. The lock jig 100 according to the first embodiment of the present invention is applicable to the existing switch gear 400 having no drawer lock mechanism as well as the existing switch gear 400 having a drawer lock mechanism as described above. be able to.

Specifically, the lock jig 100 is used by being attached to the switch gear 400 as shown in FIG. 4, for example. Specifically, first, one of the two outer surfaces of the jig main body 110 is brought into contact with the front surface of the switch gear 400, and the other of the two surfaces supports the switch gear 400. It is brought into contact with the channel base 403 .

Next, the first engaging portion 113 provided on the first main body portion 111 and the first engaging portion 113 provided on the second main body portion 112 are provided on the position fixing member 120, respectively. The jig main body 110 and the position fixing member 120 are overlapped so that the second engaging portions 121 are engaged. With the jig main body 110 and the position fixing member 120 superimposed, bolts are inserted into the existing holes provided in the switch gear 400 and the channel base 403 so as to pass through the jig main body 110 and the position fixing member 120 . 130 is screwed.

When screwing the bolt 130, the bolt 130, which is passed through the position fixing member 120, is moved along the length direction of the first through hole 114 to a position where the bolt 130 can be screwed into the existing hole. move to Since first through-hole 114 has an elongated shape, bolt 130 can be moved steplessly within first through-hole 114 . Thereby, regardless of the position of the existing hole, the switch gear 400 can be securely fixed using the existing hole.

By opening the second through hole 122 with a dimension larger than the inner diameter dimension of the existing hole in the switchgear 400 and smaller than the diameter dimension of the head 131 of the bolt 130, the first engaging portion 113 and the second Even if the center position of the second through hole 122 and the axial position of the bolt 130 do not match due to the position of engagement with the second engaging portion 121, the switch gear 400 is securely fixed by using the existing hole. can do.

The lock jig 100 of Embodiment 1 according to the present invention is not limited to being used for fixing the switch gear 400 having a structure in which a device is pulled out from inside the housing 401 . FIG. 5 is an explanatory diagram showing another usage example of the locking jig 100 of the first embodiment according to the present invention. As shown in FIG. 5, the lock jig 100 according to the first embodiment of the present invention can be used in a switchgear 400 having an opening/closing door 501 on the front side of a housing 401 that accommodates various devices. good.

In such a switchgear 400 , the locking jig 100 is attached to the front side of the opening/closing door 501 and at the corner formed by the front surface of the opening/closing door 501 and the installation surface 502 of the switchgear 400 . Specifically, in the same manner as described above, first, one of the two surfaces located outside the jig body 110 is brought into contact with the front surface of the opening/closing door 501 of the switch gear 400, and the other of the two surfaces is brought into contact with the installation surface 502 of the switch gear 400 .

Next, the first engaging portion 113 provided on the first main body portion 111 and the first engaging portion 113 provided on the second main body portion 112 are provided on the position fixing member 120, respectively. The jig main body 110 and the position fixing member 120 are overlapped so that the second engaging portions 121 are engaged. Then, in a state in which the jig body 110 and the position fixing member 120 are superimposed, the switch gear 400 and the existing switch gear 400 provided on the mounting surface 502 of the switch gear 400 are provided so as to penetrate the jig body 110 and the position fixing member 120 . A bolt 130 is screwed into the hole of .

When screwing the bolt 130, the bolt 130, which is passed through the position fixing member 120, is moved along the length direction of the first through hole 114 to a position where the bolt 130 can be screwed into the existing hole. move to Since first through-hole 114 has an elongated shape, bolt 130 can be moved steplessly within first through-hole 114 . Thereby, regardless of the position of the existing hole, the switch gear 400 can be securely fixed using the existing hole.

By opening the second through hole 122 with a dimension larger than the inner diameter dimension of the existing hole in the switchgear 400 and smaller than the diameter dimension of the head 131 of the bolt 130, the first engaging portion 113 and the second Even if the center position of the second through hole 122 and the axial position of the bolt 130 do not match due to the position of engagement with the second engaging portion 121, the switch gear 400 is securely fixed by using the existing hole. can do.

As described above, the lock jig 100 according to the first embodiment of the present invention has an angle shape bent at a right angle in the middle in the length direction, and the bending causes the inner surface to extend in the length direction. A first engaging portion 113 having a wavy shape in which protruding portions and recessed portions appear alternately at the same pitch along the edge of the jig body 110, and two angle-shaped surfaces of the jig body 110 are provided on the jig body. A jig body 110 having a plate shape and having a first through hole 114 that penetrates through the plate thickness direction and is long in the length direction, and has one surface that is the same as the first engaging portion along one direction. A plurality of position fixing members 120 each having a second engaging portion 121 having a wavy shape in which protruding portions and recessed portions appear alternately at pitches, and a second through hole 122 penetrating in the plate thickness direction. , is provided.

According to the lock jig 100 of Embodiment 1 according to the present invention, one of the two surfaces located outside the jig main body 110 is brought into contact with the front surface of the switch gear 400, and one of the two surfaces is The other surface is brought into contact with the channel base 403 that supports the switch gear 400, and the first engagement portion 113 provided on the first body portion 111 and the first engagement portion provided on the second body portion 112 are engaged. The switch gear 400 and the channel are inserted through the jig main body 110 and the position fixing member 120 in a state in which the second engaging portions 121 provided on the position fixing member 120 are engaged with the joint portions 113 . The switchgear 400 can be fixed by screwing a bolt 130 into an existing hole provided in the base 403 .

Since the first through hole 114 has an elongated hole shape elongated in the length direction of the jig main body 110, the bolt 130 can be moved along the length direction of the first through hole 114, thereby the switch gear. The bolt 130 can be securely screwed into the position of the existing hole provided in 400 . Thereby, regardless of the position of the existing hole, the switch gear 400 can be securely fixed using the existing hole.

In addition, the first engaging portion 113 and the second engaging portion 121, in which the projecting portion and the recessed portion appear alternately at the same pitch along the length direction of the jig body 110, are engaged with each other. By screwing 130, the position of the position fixing member 120 with respect to the jig main body 110 can be reliably fixed. This prevents the positional relationship between the bolt 130 and the jig body 110 from being shifted after the bolt 130 is screwed together, and the switch gear 400 can be securely fixed using the existing hole.

Moreover, in the first engaging portion 113 and the second engaging portion 121, the projecting portions and the recessed portions appear alternately at the same pitch. Even when the position of the position fixing member 120 is moved along with the movement within the one through hole 114, the first engaging portion 113 and the second engaging portion 121 are engaged with each other. A bolt 130 can be threaded. As a result, after the bolt 130 is screwed together, the positional relationship between the bolt 130 and the jig body 110 can be reliably prevented from being shifted, and the switch gear 400 can be securely fixed using the existing hole. can.

As a result, it becomes unnecessary to create an L-shaped jig aligned with the existing hole in the switchgear 400, and it is possible to apply the lock jig 100 having the same shape to a plurality of switchgears 400 of different types and sizes. Therefore, the manufacturing and management costs of the lock jig 100 can be reduced.

Further, in the lock jig 100 according to Embodiment 1 of the present invention, the first engaging portion 113 and the second engaging portion 121 are projections that form a substantially triangular shape that is sharper toward the tip side and wider toward the base side. It is characterized in that the portion and the submerged portion form a waveform shape that alternately appears at the same pitch.

According to the lock jig 100 of Embodiment 1 according to the present invention, the jig main body 110 and the position fixing member 120 are locked in a state in which the first engaging portion 113 and the second engaging portion 121 are engaged with each other. are brought into contact with each other on a plane, for example, when an external force is applied to the position fixing member 120 in a direction to shift the position along the length direction of the jig body 110, the external force is applied via the contact surface It can be transmitted to the jig body 110 and act to press the position fixing member 120 against the jig body 110 . As a result, after the bolt 130 is screwed together, the positional relationship between the bolt 130 and the jig body 110 can be reliably prevented from being shifted, and the switch gear 400 can be securely fixed using the existing hole. can.

Further, according to the lock jig 100 of Embodiment 1 according to the present invention, the first engaging portion 113 and the second engaging portion 121 are arranged in a substantially triangular shape by forming the protruding portion and the recessed portion into a substantially triangular shape. , can be realized by a simple shape. Thereby, facilitation of manufacture of lock jig 100 can be attained.

<Embodiment 2>
Next, a lock jig according to Embodiment 2 of the present invention will be described. In Embodiment 2, the same parts as those in Embodiment 1 described above are denoted by the same reference numerals, and descriptions thereof are omitted. 6 to 8 are explanatory diagrams showing the configuration of a lock jig according to Embodiment 2 of the present invention. FIG. 6 shows an exploded perspective view of a lock jig according to Embodiment 2 of the present invention. FIG. 7 shows part of a lock jig according to Embodiment 2 of the present invention. FIG. 8 shows the appearance of a lock jig according to Embodiment 2 of the present invention.

6 to 8, a lock jig 600 according to Embodiment 2 of the present invention comprises a jig main body 110 and a position fixing member 620. FIG. The jig body 110 has first engaging portions 113 on both side surfaces. The first engaging portions 113 provided on both side surfaces are continuous with the wavy shape formed by the first engaging portions 113 provided on the inner surface in the width direction of the jig body 110 .

The position fixing member 620 has a substantially U-shape bent at two points in a direction orthogonal to the direction in which the protruding portion and the recessed portion appear. The position fixing member 620 has the second engaging portion 121 on all of the surfaces located inside due to the substantially U-shaped bent shape. The second engaging portion 121 provided in the position fixing member 620 is continuous along the direction in which the three surfaces forming the substantially U-shape are connected.

Such a lock jig 600 can be attached to the switch gear 400 and used in the same manner as the lock jig 600 of the first embodiment. Specifically, first, one of the two outer surfaces of the jig main body 110 is brought into contact with the front surface of the switch gear 400, and the other of the two surfaces supports the switch gear 400. It is brought into contact with the channel base 403 .

Next, the first engaging portion 113 provided on the first main body portion 111 and the first engaging portion 113 provided on the second main body portion 112 are provided on the position fixing member 620, respectively. The jig main body 110 and the position fixing member 620 are overlapped so that the second engaging portions 121 are engaged with each other. At this time, the position fixing member 620 is attached to the jig body 110 so as to cover the jig body 110 .

With the jig main body 110 and the position fixing member 620 superimposed, bolts are inserted into the existing holes provided in the switch gear 400 and the channel base 403 so as to pass through the jig main body 110 and the position fixing member 620 . 130 is screwed. Since the first through hole 114 has an elongated hole shape, the bolt 130 can be moved steplessly within the first through hole 114, and the existing hole can be used regardless of the position of the existing hole. Thus, the switchgear 400 can be reliably fixed.

As described above, in the lock jig 600 according to the second embodiment of the present invention, the position fixing member 620 is substantially U-shaped bent at two points in the direction perpendicular to the appearance direction of the protruding portion and the recessed portion. It is characterized by having a second engaging portion 121 on at least the central surface of the surfaces positioned inside by bending.

According to the lock jig 600 of Embodiment 2 according to the present invention, the position fixing member 620 is attached to the jig main body 110 so as to cover the jig main body 110 , so that the position fixing member 620 is attached to the jig main body 110 . , the position fixing member 620 can be prevented from moving along the width direction. As a result, after the bolt 130 is screwed together, the positional relationship between the bolt 130 and the jig body 110 is more reliably prevented from deviating, and the switch gear 400 is securely fixed using the existing hole. can be done.

Further, in the lock jig 600 of Embodiment 2 according to the present invention, the jig main body 110 has the first engaging portions 113 on both side surfaces, and the position fixing member 620 is positioned inside by bending. It is characterized by having a second engaging portion 121 on the surface.

According to the lock jig 600 of Embodiment 2 of the present invention, the first engaging portion 113 and the second engaging portion 121 are engaged with each other on the three surfaces of the jig main body 110 and the position fixing member 620. can be matched. As a result, it is possible to secure an area where the first engaging portion 113 and the second engaging portion 121 are engaged without increasing the size of the lock jig 600, and after the bolt 130 is screwed together, the bolt is 130 and the jig body 110 can be more reliably prevented from being displaced, and the switch gear 400 can be securely fixed using the existing holes.

In the second embodiment described above, the locking jig 600 is provided with the position fixing member 620 having the second engaging portions 121 on all the surfaces located inside due to the bending, but it is not limited to this. do not have. In the lock jig according to the present invention, the first engaging portion 113 is provided on at least one side surface of the jig body 110 , and one of the surfaces positioned inside by bending the position fixing member 620 is A configuration in which the second engaging portion 121 is provided on the surface opposite to the side surface on which the first engaging portion 113 is provided may be employed.

Also in the locking jig having such a configuration, the first engaging portion 113 and the second engaging portion 121 can be meshed with each other on the two surfaces of the jig body 110 and the position fixing member 620 . As a result, it is possible to secure an area in which the first engaging portion 113 and the second engaging portion 121 are engaged without increasing the size of the lock jig. and the jig main body 110 can be more reliably prevented, and the switch gear 400 can be securely fixed using the existing holes.

In addition, in the lock jig 600 of the second embodiment, the position fixing member 620, which has a substantially U-shape bent at two points in the direction perpendicular to the appearance direction of the protruding portion and the recessed portion, is bent inwardly. It is sufficient that the second engaging portion 121 is provided on at least the central surface among the surfaces on which it is located.

According to the lock jig 600 having such a configuration, the position fixing member 620 is attached to the jig main body 110 so as to cover the jig main body 110 , so that the jig main body 110 is moved in the width direction. It is possible to prevent the position fixing member 620 from moving along. As a result, after the bolt 130 is screwed together, the positional relationship between the bolt 130 and the jig body 110 is more reliably prevented from deviating, and the switch gear 400 is securely fixed using the existing hole. can be done.

Further, in the first and second embodiments described above, the lock provided with the first engaging portion 113 having a wave shape in which the substantially triangular projecting portion and the recessed portion alternately appear at the same pitch. Although the jigs 100 and 600 have been described, the wavy shape is not limited to being configured by a substantially triangular protruding portion and recessed portion. Specifically, the first engaging portion 113 has, for example, a wavy shape in which protruding portions and receding portions having rectangular shapes with the same dimensions on the tip side and the base side appear alternately at the same pitch. There may be.

According to the lock jig having such a configuration, the jig main body 110 and the position fixing member 620 are in planar contact with each other when the first engaging portion 113 and the second engaging portion 121 are engaged with each other. For example, when an external force is applied to the position fixing member 620 in a direction to shift the position along the length direction of the jig body 110, the external force is applied to the jig body 110 via the contact surface. It can be transmitted and act to press the position fixing member 620 against the jig body 110 . As a result, after the bolt 130 is screwed together, the positional relationship between the bolt 130 and the jig body 110 can be reliably prevented from being shifted, and the switch gear 400 can be securely fixed using the existing hole. can.

In addition, according to the lock jig having such a configuration, by forming the protruding portion and the recessed portion in a rectangular shape, regardless of the direction of the applied external force, the direction of the applied external force is directed in the length direction of the jig main body 110. , and can be transmitted to the jig body 110 via the contact surface. As a result, after the bolt 130 is screwed together, the positional relationship between the bolt 130 and the jig body 110 can be reliably prevented from being shifted, and the switch gear 400 can be securely fixed using the existing hole. can.

INDUSTRIAL APPLICABILITY As described above, the lock jig according to the present invention is useful as a lock jig for fixing the position of a switchgear, and particularly suitable for a lock jig for fixing the position of a slide-type switchgear.

Reference Signs List 100, 600 lock jig 110 jig main body 113 first engaging portion 114 first through hole 120 position fixing member 121 second engaging portion 122 second through hole 130 bolt 400 switch gear 401 housing

Claims (7)

A locking jig comprising a jig body and a plurality of position fixing members,
The jig body is
The first has an angle shape that is bent at a right angle in the middle in the length direction, and has a wavy shape in which the protruding portion and the recessed portion appear alternately at the same pitch along the length direction on the inner surface due to the bending. an engaging portion of
a first through-hole provided in each of two angular-shaped faces of the jig body, penetrating the jig body in the plate thickness direction and elongated in the length direction;
with
The position fixing member is
a second engaging portion that has a plate shape and has a wavy shape in which protruding portions and recessed portions alternately appear on one surface along one direction at the same pitch as the first engaging portion;
a second through hole penetrating in the plate thickness direction;
A lock jig comprising : Each of the first engaging portion and the second engaging portion has a wavy shape in which protruding portions and immersed portions that form a substantially triangular shape that is sharper toward the tip end and wider toward the root side appear alternately at the same pitch. The locking jig according to claim 1, characterized by: Each of the first engaging portion and the second engaging portion has a wavy shape in which protruding portions and receding portions that form a rectangular shape with the same size on the tip side and the root side appear alternately at the same pitch. The locking jig according to claim 1, characterized by: The position fixing member has a substantially U-shape that is bent at two points in a direction perpendicular to the appearance direction of the projecting portion and the recessed portion, and the bending causes the second surface to be formed on at least the central surface of the inner surface. 4. The locking jig according to any one of claims 1 to 3, further comprising an engaging portion. The jig body has the first engaging portion on at least one side surface,
The position fixing member is provided with the second engaging portion on a surface positioned inside by bending and facing a side surface of the jig body on which the first engaging portion is provided. The locking jig according to claim 4, characterized by: The jig body has the first engaging portions on both side surfaces,
5. The locking jig according to claim 4, wherein the position fixing member is provided with the second engaging portion on all surfaces positioned inside due to bending. The second through hole is larger than the inner diameter of the fixing hole provided in the switchgear to be fixed, and smaller than the diameter of the head of the bolt screwed into the fixing hole. The locking jig according to any one of claims 1 to 6, characterized in that the opening is sized.

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