JP2020124095A - Lock jig - Google Patents

Abstract

To securely fix a switchgear using existing holes.SOLUTION: A lock jig 100 includes a jig body 110 and a position fixing member 120. The jig body 110 includes: a first engaging portion 113 that has an angled shape bent at a right angle in the middle in the length direction and has a corrugated shape in which protrusions and recesses appear alternately at the same pitch along the length direction on the surface located inside by bending; and first through holes 114 that are respectively provided on two surfaces forming the angle shape of the jig body 110, penetrate the jig body 110 in the plate thickness direction, and are long in the length direction. The position fixing member 120 includes a plate-shaped second engaging portion 121 having a wavy shape in which protrusions and recesses appear alternately at the same pitch as the first engaging portion, along one direction on one surface, and a second through hole 122 penetrating in the plate thickness direction.SELECTED DRAWING: Figure 3

Description

The present invention relates to a lock jig that fixes the position of a switch gear.

The switchgear is equipped with various devices such as a circuit breaker, a lightning arrester, an instrument transformer, and a station transformer in the 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 at the time of periodic inspection, for example. Various devices included in the switchgear are positioned at the insertion position (normal position) inserted in the housing during normal operation.

Such a switchgear is provided with a drawer lock mechanism that fixes various devices in the insertion position. This prevents various devices from being accidentally pulled out of the housing. Conventionally, assuming a large earthquake or the like, various devices included in the switchgear have been fixed in the insertion position by using an L-shaped jig in addition to the drawer lock mechanism. ..

Such an L-shaped jig is fixed to the switch gear by utilizing an existing hole provided in the switch gear. Specifically, in the L-shaped jig, the through hole provided on one of the two surfaces forming a right angle in the L-shaped jig is aligned with the existing hole provided on the switch gear, and Align the through hole on the other side of the with the existing hole provided on the channel base that supports the switch gear from below, and attach it to the switch gear by screwing bolts into each through hole and the existing hole. To be As a result, various devices included in the switchgear are fixed in the insertion position.

As related techniques, specifically, for example, conventionally, a round-head square root bolt having a polygonal neck portion (corner root portion), a nut screwed to a shaft portion of the round-head square root bolt, and a round-head square root bolt. A retaining jig having a locking portion protruding in the length direction of the shaft portion of the, and a fixing jig having a loosening hole, and a round head square root bolt, which is clamped between the head and the nut. By using the fall prevention tool for the switchboard realized by the plate material, by screwing the nut onto the bolt with the locking part engaged with the duller hole, in a place where the operator's hands cannot enter Even if there is, there has been a technique for preventing a fall accident during transportation of a switchboard or the like (see, for example, Patent Document 1 below).

JP, 2013-121257, A

However, the position of the existing hole provided in the switchgear differs for each switchgear due to the difference in the model and model. Therefore, as described above, the existing hole is used to mount the L-shaped jig. The conventional technique for mounting has to be troublesome because it requires an L-shaped jig that matches the positions of the existing holes for each switchgear.

An object of the present invention is to provide a lock jig capable of reliably fixing a switchgear by utilizing an existing hole in order to solve the above-mentioned problems of the conventional technique.

In order to solve the above-mentioned problems and to achieve the object, a lock jig according to the present invention has an angled shape bent at a right angle in a middle portion in the length direction, and a surface located inside by bending is lengthwise. A corrugated first engaging portion along which projecting portions and recessed portions alternately appear at the same pitch, and a jig main body provided on each of two angle-shaped surfaces of the jig main body. A jig body having a first through hole that penetrates in the thickness direction and is long in the length direction, and has a plate shape, and protrudes at the same pitch as the first engaging portion along one direction on one surface. A plurality of position fixing members each including a second engaging portion having a corrugated shape in which the portion and the recessed portion appear alternately and a second through hole penetrating in the plate thickness direction. Characterize.

Further, in the lock jig according to the present invention, in the above invention, the first engaging portion and the second engaging portion are substantially triangular-shaped protruding portions that are wider toward the tip side and toward the root side. And the immersive portion have a corrugated shape in which they appear alternately at the same pitch.

Further, in the lock jig according to the present invention, in the above invention, the first engaging portion and the second engaging portion include a protruding portion having a rectangular shape in which a tip side and a root side have the same size. It is characterized in that it has a corrugated shape in which the recesses and the recesses appear alternately at the same pitch.

Further, in the lock jig according to the present invention, in the above invention, the position fixing member has a substantially U shape bent at two positions in a direction orthogonal to the appearance direction of the protruding portion and the recessed portion, Thus, the second engaging portion is provided on at least the central surface of the surface located inside.

Also, in the lock jig according to the present invention, in the above invention, the jig main body is provided with the first engaging portion on at least one side surface, and the position fixing member is a surface located inside by bending. The second engagement portion is provided on a surface of the jig body that faces a side surface on which the first engagement portion is provided.

Also, in the lock jig according to the present invention, in the above invention, the jig main body is provided with the first engaging portions on both side surfaces, and the position fixing member is provided on all surfaces located 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 an inner diameter dimension of a fixing hole provided in the switch gear to be fixed, It is characterized in that it is opened with a size smaller than the diameter size of the head of the bolt screwed into the hole.

According to the lock jig of the present invention, it is possible to reliably fix the switchgear by utilizing the existing hole.

It is explanatory drawing (the 1) which shows the structure of the lock jig of embodiment concerning this invention. It is explanatory drawing (the 2) which shows the structure of the lock jig of embodiment concerning this invention. It is explanatory drawing (the 3) which shows the structure of the lock jig of embodiment concerning this invention. It is explanatory drawing which shows the usage example of the lock jig of embodiment concerning this invention. It is explanatory drawing which shows another example of use of the lock jig of embodiment concerning this invention. It is explanatory drawing (the 1) which shows the structure of the lock jig of Embodiment 2 concerning this invention. It is explanatory drawing (the 2) which shows the structure of the lock jig of Embodiment 2 concerning this invention. It is explanatory drawing (the 3) which shows the structure of the lock jig of Embodiment 2 concerning this invention.

Hereinafter, preferred embodiments of a lock jig according to the present invention will be described in detail with reference to the accompanying drawings.

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

1 to 3, the lock jig 100 according to the first embodiment of the present invention includes a jig body 110, a position fixing member 120, and a bolt 130. The jig body 110 has an angled shape that is bent at a right angle in the middle in the length direction. Hereinafter, in the first embodiment, in the jig body 110, the portion extending from the bent portion to one side is the first body portion 111, and the portion extending from the bent portion to the other side is the second body portion. This will be described as 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 positioned inside by bending and the two surfaces positioned outside are both at a right angle.

The jig body 110 includes a first engagement portion 113. The first engaging portion 113 is provided on each of two inner surfaces of the jig body 110. The first engaging portion 113 has a protruding portion (mountain) and a recessed portion (valley) along a direction in which two surfaces that form a right angle are continuous (hereinafter, appropriately referred to as “length direction of the jig body 110”). Form a waveform that appears alternately.

The corrugated shape of the first engaging portion 113 is such that the protruding portion and the recessed portion repeatedly appear alternately at a constant pitch along the length direction of the jig body 110. Further, the corrugated shape of the first engaging portion 113 is such that the height of the protruding portion and the depth of the recessed portion are uniform. The projecting portion and the recessed portion of the first engaging portion 113 are parallel to each of the two surfaces that form a right angle and are orthogonal to the length direction of the jig body 110 (hereinafter, referred to as “jig body 110 It is provided with a constant width along the "width direction").

In the first engaging portion 113, when the jig body 110 is viewed along the width direction, the protruding portion and the recessed portion, which have a substantially triangular shape and become wider toward the tip side and toward the root side, alternate with the same pitch. It has a waveform shape that appears in. The tip of the protrusion forms the opening edge of the recess, and the root of the protrusion forms the bottom of the recess. For this reason, the recessed portion forms a groove whose width is narrower on the bottom side and wider on the opening side.

In the jig body 110, the first body portion 111 and the second body portion 112 are each provided with a first through hole 114 penetrating the jig body 110 along the plate thickness direction. The first through hole 114 has a long hole shape that is long along the direction in which the first body portion 111 and the second body portion 112 are continuous.

The position fixing member 120 has a plate shape having 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 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. In the second engagement portion 121, on one surface of the position fixing member 120, the protrusions and the recesses alternately appear at the same pitch as the first engagement portion of the first engagement portion 113 along one direction. Form a wavy shape.

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

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

The switchgear 400 includes various devices such as a power cable for supplying the electric power drawn from the substation, a circuit breaker, a lightning arrester, a transformer for a meter, and a station transformer connected to the power cable in the housing 401. It is provided (all are not shown). The interior of the housing 401 is divided into a plurality of compartments such as a cable chamber for accommodating a power cable and a transformer and a breaker chamber for accommodating a circuit breaker by a partition wall or the like.

Various devices included in the switchgear 400 are housed so that they can be pulled out from the housing 401. Various devices included in the switchgear 400 are pulled out from the housing 401, for example, at the time of periodic inspection. The housing 401 is provided with a handle 402 that is gripped when the device included in the switchgear 400 is pulled out.

Of the various devices included in the switchgear 400, a caster or the like is provided below the device that can be pulled out from the housing 401, assuming that various devices can be pulled out from the housing 401. Therefore, for example, when a large earthquake or the like occurs and an external force for pushing the various devices out of the housing 401 is applied, the various devices are expected to jump out of the housing 401. Since various devices are heavy, it is difficult to hold them down easily once they start moving.

Some switch gears 400 have an existing drawer lock mechanism, but such an existing drawer lock mechanism does not assume a large earthquake or the like that would cause various devices to move. Even if it is attempted to suppress the movement of various devices only by the pull-out lock mechanism, it is difficult to suppress the various devices that have once started to move, and there is a risk of damage. The lock jig 100 according to the first embodiment of the present invention is applied not only to the switchgear 400 that does not include an existing drawer lock mechanism but also to the switchgear 400 that includes the existing 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 surfaces located outside the jig body 110 is brought into contact with the front surface of the switch gear 400, and the other of the two surfaces is supported by the switch gear 400. Abut on the channel base 403.

Next, the first engaging portion 113 provided on the first body portion 111 and the first engaging portion 113 provided on the second body portion 112 are provided on the position fixing member 120, respectively. The jig body 110 and the position fixing member 120 are overlapped with each other so that the second engaging portion 121 is engaged with each other. Then, with the jig main body 110 and the position fixing member 120 overlapped with each other, the jig main body 110 and the position fixing member 120 are penetrated so that the bolts are inserted into the existing holes provided in the switch gear 400 and the channel base 403. Screw 130 together.

When the bolt 130 is screwed, the bolt 130 in the state where the position fixing member 120 is penetrated along the length direction of the first through hole 114 is located at a position where the bolt 130 can be screwed into an existing hole. Move to. Since the first through hole 114 has a long hole shape, the bolt 130 can be continuously moved within the first through hole 114. As a result, the switch gear 400 can be reliably fixed using the existing hole regardless of the position of the existing hole.

By opening the second through hole 122 with a size larger than the inner diameter size of the existing hole in the switch gear 400 and smaller than the diameter size of the head 131 of the bolt 130, the first engaging portion 113 and the first engaging part 113 are connected. Even if the center position of the second through hole 122 and the axial center position of the bolt 130 do not match due to the meshing position with the second engaging portion 121, the existing hole is used to securely fix the switch gear 400. can do.

The lock jig 100 according to the first embodiment of the present invention is not limited to the one used for fixing the switchgear 400 having a structure in which a device is pulled out from the inside of the housing 401. FIG. 5 is an explanatory diagram showing another example of use of the lock jig 100 according to the first embodiment of 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 switch gear 400 having an opening/closing door 501 on the front surface of a housing 401 that accommodates various devices. Good.

In such a switchgear 400, the lock jig 100 is attached to the front side of the opening/closing door 501 and to the corner formed by the front surface of the opening/closing door 501 and the installation surface 502 of the switchgear 400. Specifically, similarly to the 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 in the switch gear 400, and the other of the two surfaces is contacted. The surface of is contacted with the installation surface 502 of the switchgear 400.

Next, the first engaging portion 113 provided on the first body portion 111 and the first engaging portion 113 provided on the second body portion 112 are provided on the position fixing member 120, respectively. The jig body 110 and the position fixing member 120 are overlapped with each other so that the second engaging portion 121 is engaged with each other. Then, with the jig main body 110 and the position fixing member 120 overlapped with each other, the jig main body 110 and the position fixing member 120 are penetrated so that the switch gear 400 and the existing surface provided on the installation surface 502 of the switch gear 400 are installed. The bolt 130 is screwed into the hole.

When the bolt 130 is screwed, the bolt 130 in the state where the position fixing member 120 is penetrated along the length direction of the first through hole 114 is located at a position where the bolt 130 can be screwed into an existing hole. Move to. Since the first through hole 114 has a long hole shape, the bolt 130 can be continuously moved within the first through hole 114. As a result, the switch gear 400 can be reliably fixed using the existing hole regardless of the position of the existing hole.

By opening the second through hole 122 with a size larger than the inner diameter of the existing hole of the switch gear 400 and smaller than the diameter of the head 131 of the bolt 130, the first engaging portion 113 and the first engaging portion 113 are connected to each other. Even if the center position of the second through hole 122 and the axial center position of the bolt 130 do not match due to the meshing position with the second engaging portion 121, the existing hole is used to securely fix the switch gear 400. can do.

As described above, the lock jig 100 according to the first embodiment of the present invention has an angled shape that is bent at a right angle at a middle portion in the length direction, and the lock jig 100 has a length direction in the surface positioned inside due to the bending. The first engaging portion 113 having a corrugated shape in which the projecting portions and the recessed portions alternately appear at the same pitch along with the jig main body 110, and the jig main body 110 is provided on each of the two angle-shaped surfaces. A jig body 110 having a first through hole 114 that penetrates 110 in the plate thickness direction and is long in the length direction, has a plate shape, and is the same as the first engaging portion along one direction on one surface. A plurality of position fixing members 120 including a second engaging portion 121 having a corrugated shape in which protruding portions and recessed portions appear alternately at a pitch, and a second through hole 122 penetrating in the plate thickness direction. It is characterized by having.

According to the lock jig 100 of the first embodiment of the present invention, one of the two surfaces located outside the jig body 110 is brought into contact with the front surface of the switch gear 400, and the one of the two surfaces is contacted. The other surface is brought into contact with the channel base 403 supporting the switchgear 400, and the first engaging portion 113 provided on the first main body 111 and the first engagement portion provided on the second main body 112. With the second engagement portion 121 provided on the position fixing member 120 engaged with the joint portion 113, the jig body 110 and the position fixing member 120 are pierced so that the switch gear 400 and the channel The switch gear 400 can be fixed by screwing the bolts 130 into the existing holes provided in the base 403.

Since the first through hole 114 has a long hole shape that is long 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, which allows the switch gear. The bolt 130 can be securely screwed into the position of the existing hole provided in 400. As a result, the switch gear 400 can be reliably fixed using the existing hole regardless of the position of the existing hole.

In addition, the bolts are engaged with the first engaging portions 113 and the second engaging portions 121 in which the protruding portions and the recessed portions alternately appear at the same pitch along the length direction of the jig body 110. By screwing 130 together, the position of the position fixing member 120 with respect to the jig body 110 can be reliably fixed. With this, it is possible to prevent the positional relationship between the bolt 130 and the jig main body 110 from being displaced after the bolt 130 is screwed, and to reliably fix the switchgear 400 using the existing hole.

Further, in the first engaging portion 113 and the second engaging portion 121, the protruding portion and the recessed portion alternately appear at the same pitch, so that the bolt 130 inserted into the second through hole 122 is not Even when the position of the position fixing member 120 is moved by moving the position fixing member 120 in the first through hole 114, the first engaging portion 113 and the second engaging portion 121 are engaged with each other. The bolt 130 can be screwed. Accordingly, after the bolt 130 is screwed, the positional relationship between the bolt 130 and the jig body 110 is surely prevented from shifting, and the switch gear 400 can be reliably fixed using the existing hole. it can.

As a result, it is not necessary to create an L-shaped jig aligned with the existing holes in the switchgear 400, and the lock jig 100 having the same shape can be applied to a plurality of switchgears 400 of different types and sizes. Therefore, the cost for manufacturing and managing the lock jig 100 can be suppressed.

Further, in the lock jig 100 according to the first embodiment of the present invention, the first engaging portion 113 and the second engaging portion 121 are formed in a substantially triangular shape in which the tip side is wider and the root side is wider. It is characterized in that the portions and the immersed portions have a waveform shape in which they alternately appear at the same pitch.

According to the lock jig 100 of the first embodiment of the present invention, the jig body 110 and the position fixing member 120 are connected to each other in the state where the first engaging portion 113 and the second engaging portion 121 are engaged with each other. Are brought into contact with each other in a plane and, for example, when an external force is applied to the position fixing member 120 in a direction of shifting the position along the length direction of the jig body 110, the external force is applied via the contact surface. The position fixing member 120 can be transmitted to the jig body 110 and acted to press the position fixing member 120 against the jig body 110. Accordingly, after the bolt 130 is screwed, the positional relationship between the bolt 130 and the jig body 110 is surely prevented from shifting, and the switch gear 400 can be reliably fixed using the existing hole. it can.

Further, according to the lock jig 100 of the first embodiment of the present invention, the first engaging portion 113 and the second engaging portion 121 are formed by forming the protrusion and the recess into a substantially triangular shape. Can be realized with a simple shape. Thereby, the manufacture of the lock jig 100 can be facilitated.

<Second Embodiment>
Next, a lock jig according to a second embodiment of the present invention will be described. In the second embodiment, the same parts as those in the first embodiment described above are designated by the same reference numerals, and the description thereof will be omitted. 6 to 8 are explanatory views showing the configuration of the lock jig of the second embodiment according to the present invention. FIG. 6 shows a perspective view of a disassembled lock jig according to the second exemplary embodiment of the present invention. FIG. 7 shows a part of the lock jig according to the second embodiment of the present invention. FIG. 8 shows the outer appearance of the lock jig of the second embodiment according to the present invention.

6 to 8, the lock jig 600 according to the second embodiment of the present invention includes a jig body 110 and a position fixing member 620. The jig body 110 includes first engaging portions 113 on both side surfaces. The first engaging portions 113 provided on both side surfaces are continuous in a 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 that is bent at two positions in a direction orthogonal to the appearance direction of the protrusion and the recess. The position fixing member 620 is provided with the second engaging portion 121 on all of the surfaces located inside due to the shape bent into a substantially U shape. The second engagement portion 121 included in the position fixing member 620 is continuous along a direction in which three substantially U-shaped surfaces are continuous.

Such a lock jig 600 can be attached to the switchgear 400 and used in the same manner as the lock jig 600 of the first embodiment. Specifically, first, one of the two surfaces located outside the jig body 110 is brought into contact with the front surface of the switch gear 400, and the other of the two surfaces is supported by the switch gear 400. Abut on 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 body 110 and the position fixing member 620 are overlapped with each other so that the second engaging portion 121 is 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.

Then, with the jig main body 110 and the position fixing member 620 overlapped with each other, the jig main body 110 and the position fixing member 620 are pierced so as to penetrate the existing holes provided in the switch gear 400 and the channel base 403 by bolts. Screw 130 together. Since the first through hole 114 has a long hole shape, the bolt 130 can be moved steplessly in the first through hole 114, and the existing hole can be used regardless of the position of the existing hole. Thus, the switch gear 400 can be securely 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 and is bent at two positions in the direction orthogonal to the appearance direction of the protrusion and the recessed portion. It is characterized in that it has a shape and is provided with a second engaging portion 121 on at least the central surface of the surface located inside by bending.

According to the lock jig 600 of the second embodiment of the present invention, the position fixing member 620 is attached to the jig body 110 such that the position fixing member 620 covers the jig body 110. The position fixing member 620 can be prevented from moving along the width direction. With this, it is possible to more reliably prevent the positional relationship between the bolt 130 and the jig body 110 from being displaced after the bolt 130 is screwed, and to securely fix the switchgear 400 using the existing hole. You can

Further, in the lock jig 600 according to the second embodiment of the present invention, the jig body 110 is provided with the first engaging portions 113 on both side surfaces, and the position fixing member 620 is located inside by bending. It is characterized in that the surface is provided with the second engaging portion 121.

According to the lock jig 600 of the second embodiment 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 body 110 and the position fixing member 620. Can be matched. Accordingly, it is possible to secure an area where the first engaging portion 113 and the second engaging portion 121 mesh with each other without increasing the size of the lock jig 600, and after the bolt 130 is screwed, It is possible to more reliably prevent the positional relationship between the jig 130 and the jig body 110 from deviating, and to reliably fix the switchgear 400 using the existing holes.

In the second embodiment described above, the lock jig 600 including the position fixing member 620 including the second engaging portion 121 on all the surfaces located inside by bending is described, but the present invention is not limited to this. Absent. 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 among the surfaces of the jig body 110 located inside due to the bending of the position fixing member 620, The configuration may be such that the second engaging portion 121 is provided on the surface facing the side surface on which the first engaging portion 113 is provided.

Even in the lock jig having such a configuration, the first engaging portion 113 and the second engaging portion 121 can be engaged with each other on the two surfaces of the jig body 110 and the position fixing member 620. This makes it possible to secure an area where the first engaging portion 113 and the second engaging portion 121 engage with each other without increasing the size of the lock jig, and after the bolt 130 is screwed, the bolt 130 is screwed. It is possible to more reliably prevent the positional relationship between the switch gear 400 and the jig main body 110 from being displaced, and to reliably fix the switchgear 400 using the existing holes.

Further, in the lock jig 600 of the second embodiment, the position fixing member 620 having a substantially U-shape that is bent at two places in the direction orthogonal to the appearance direction of the protruding portion and the recessed portion is bent inward. It suffices if the second engagement portion 121 is provided on at least the central surface of the surface 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, and thus the position fixing member 620 is provided in the width direction with respect to the jig main body 110. It is possible to prevent the position fixing member 620 from moving along. With this, it is possible to more reliably prevent the positional relationship between the bolt 130 and the jig body 110 from being displaced after the bolt 130 is screwed, and to securely fix the switchgear 400 using the existing hole. You can

In addition, in the above-described first and second embodiments, the lock is provided with the first engaging portion 113 having a corrugated shape in which the projecting portions and the recessed portions having a substantially triangular shape appear alternately at the same pitch. Although the jigs 100 and 600 have been described, the corrugated shape is not limited to the one formed by the protrusion and the recess which are substantially triangular. Specifically, the first engaging portion 113 has, for example, a corrugated shape in which a protruding portion and a recessed portion having a rectangular shape with the same size on the tip side and the root side alternately appear at the same pitch. It may be.

According to the lock jig having such a configuration, the jig body 110 and the position fixing member 620 are brought into planar contact with each other in the state where the first engaging portion 113 and the second engaging portion 121 are engaged with each other. Then, for example, when an external force is applied to the position fixing member 620 in the direction of shifting 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. The position fixing member 620 can be transmitted and acted to press the position fixing member 620 against the jig body 110. Accordingly, after the bolt 130 is screwed, the positional relationship between the bolt 130 and the jig body 110 is surely prevented from shifting, and the switch gear 400 can be reliably fixed using the existing hole. it can.

Further, according to the lock jig having such a configuration, by making the projecting portion and the recessed portion rectangular, the direction of the external force is changed regardless of the direction of the applied external force. Can be transmitted to the jig body 110 via the contact surface. Accordingly, after the bolt 130 is screwed, the positional relationship between the bolt 130 and the jig body 110 is surely prevented from shifting, and the switch gear 400 can be reliably fixed using the existing hole. it 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 switch gear, and is particularly suitable for a lock jig for fixing the position of a slide type switch gear.

100, 600 Lock jig 110 Jig body 113 First engaging portion 114 First through hole 120 Position fixing member 121 Second engaging portion 122 Second through hole 130 Bolt 400 Switchgear 401 Housing

Claims (7)

An angled shape that is bent at a right angle in the middle in the length direction, and has a wavy shape in which protrusions and recesses alternately appear at the same pitch along the length direction on a surface positioned inside by bending. And a first through hole that is provided on each of two angle-shaped surfaces of the jig body and penetrates the jig body in the plate thickness direction and is long in the length direction. With the ingredient body,
A plate-shaped second engaging portion having a corrugated shape in which protrusions and recesses alternately appear at the same pitch as the first engaging portion along one direction on one surface, and in the plate thickness direction A plurality of position fixing members having a second through hole penetrating therethrough;
A lock jig characterized by having. The first engaging portion and the second engaging portion have a corrugated shape in which projecting portions and recessed portions, which have a substantially triangular shape and are wider toward the tip side and wider toward the root side, appear alternately at the same pitch. The lock jig according to claim 1, wherein: The first engaging portion and the second engaging portion have a corrugated shape in which protruding portions and recessed portions having a rectangular shape with the same size on the tip side and the root side appear alternately at the same pitch. The lock jig according to claim 1, wherein: The position fixing member has a substantially U-shape that is bent at two positions in a direction orthogonal to the appearance direction of the protruding portion and the recessed portion, and the second fixing member is formed on at least the center surface of the surface positioned inside by the bending. The lock jig according to claim 1, further comprising an engaging portion. The jig body includes the first engaging portion on at least one side surface,
The position fixing member is provided with the second engaging portion on a surface located inside by bending and facing a side surface of the jig body on which the first engaging portion is provided. The lock jig according to claim 4, wherein The jig main body includes the first engaging portion on both side surfaces,
The lock jig according to claim 4, wherein the position fixing member is provided with the second engaging portion on all surfaces positioned inside by bending. The second through hole is larger than the inner diameter dimension of the fixing hole provided in the switch gear to be fixed and smaller than the diameter dimension of the head portion of the bolt screwed into the fixing hole. The lock jig according to any one of claims 1 to 6, wherein the lock jig is opened with a size.

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