JP2015056964A - Nonslip insulating and protecting sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a nonslip insulating and protecting sheet for coating and protecting an object to be laid down in a wire.SOLUTION: A nonslip insulating and protecting sheet 1 comprises: a sheet body 2 that has flexibility and is formed of an insulating material; a gripping leaf spring 4 that is formed of a flat plate material with an U-shape cross section, detachably mounted inside or on an inner lateral surface 2b of the sheet body 2; fixtures 5 that are laid down on at least four corners of the sheet body 2 and hold the sheet body 2 to be folded in two; a plurality of pairs of block-like spacers 6 that are arranged to expand the inner space of the sheet body 2 when the body is folded in two; and a grip 7 that is laid down on a folded part 2c of the sheet body 2, where the spacers 6, which are arranged in a region, other than the folded part 2c of the sheet body 2, in which the gripping leaf springs 4 are arranged in the sheet body 2, allows at least a part of an object 14 to be protected to be fitted and stored by a space between spacers 6 forming a pair and the other spacers 6 forming a pair.

Description

  The present invention relates to a displacement-preventing insulating protective sheet that is attached to an overhead wire, for example, covers and protects an object to be protected such as a camber and is easily detachable and does not cause a positional displacement in the extending direction of the overhead wire.

2. Description of the Related Art Conventionally, various forms of insulating covers are known that cover and protect power transmission equipment installed on an overhead wire.
The invention having the same problem to be solved as the present invention has not been found at present, but the following are known as prior art documents in the same technical field.
For example, Patent Document 1 (Japanese Patent Application Laid-Open No. 2012-60703) discloses a technical content that uses a hook-and-loop fastener as a fixing structure for making a protective cover detachable.
Patent Document 2 (Japanese Patent Application Laid-Open No. 2011-193640) discloses an insulating cover including a handle (indirect hot wire band 18).
Further, Patent Document 3 (Japanese Patent Laid-Open No. 10-285732) discloses a protective cover made of a flexible insulating sheet.
In addition, Patent Document 4 (Japanese Utility Model Publication No. 45-16030) discloses a protective cover that can be easily attached to and detached from an overhead wire using the action of a leaf spring.
And in patent document 5-8 (Unexamined-Japanese-Patent No. 2010-74936, registered utility model No. 3169138, Unexamined-Japanese-Patent No. 2011-135648, Unexamined-Japanese-Patent No. 2011-97700), protrusion is formed in the inner surface of a protective cover. A technical content is disclosed in which a fitting structure is formed by the protrusions and the object to be protected to prevent displacement of the protective cover.

JP 2012-60703 A JP 2011-193640 A Japanese Patent Laid-Open No. 10-285732 Japanese Utility Model Publication No. 45-16030 JP 2010-74936 A Registered Utility Model No. 3169138 JP 2011-135648 A JP 2011-97700 A

In the case of the invention disclosed in Patent Documents 1-4 described above, the cover may be displaced along the direction of extension of the overhead wire during use. In this case, the protective cover is held at a target location. There was a problem that it was not possible.
Further, an improved type of the invention disclosed in Patent Document 3 is known and is not disclosed as a prior art document. However, a leaf spring for maintaining a U-shaped cross section is provided inside a sheet-like protective cover. Some are built in a state that cannot be removed. Such a modified protective cover is configured such that the protective cover can be held by holding the object to be protected with a leaf spring. Even when such an improved protective cover is used, it cannot be completely said that there is no possibility that the protective cover is displaced along the extension direction of the overhead wire. In such an improved protective cover, the bent portion of the built-in leaf spring tends to be particularly easily damaged. And when the leaf spring built in the inside of the sheet-like protective cover is broken, the protective cover has to be replaced even if the sheet material is not particularly damaged, and it is uneconomical because the service life is short. .
On the other hand, in the case of the protective covers disclosed in Patent Documents 5-8, all of them have a merit that they can be provided with protrusions on the inner side to prevent displacement, but they all fit the three-dimensional shape of the mounted object. It is formed into a shape to make. In this case, it was necessary to use a molding die for manufacturing the protective cover. However, since the mold is expensive, if the size of the mounted object is not uniform at the time of mounting, or if the frequency of use of the mounted object is low, protection to protect the mounted object The manufacturing cost of the cover becomes high, and there is a problem that the target protective cover cannot be supplied at a low price.

  The present invention has been made in response to such a conventional situation, and an object of the present invention is to provide a protective cover having sufficient shape retaining property while having flexibility by using a sheet-like insulating material. It is easy to attach and detach and fix, there is no risk of misalignment or disengagement during use, and parts that are easily damaged can be easily replaced. An object of the present invention is to provide an insulating protective sheet for preventing misalignment, which can be easily manufactured in a form that reliably fits the above form, and that can be manufactured at low cost.

In order to achieve the above object, an anti-slipping insulation protective sheet according to claim 1 is an anti-slipping insulation protective sheet for covering and protecting an object to be protected installed on an overhead wire, A sheet body having flexibility and made of an insulating material, a clamping leaf spring made of a U-shaped flat plate material detachably mounted on the inside or the inner surface of the sheet body, and at least four corners of the sheet body A fixture that holds the sheet body in a folded state, a plurality of pairs of block spacers that are arranged to expand the internal space when the sheet body is folded in two, A spacer mounted on the folded portion, and the spacer is disposed in a region of the sheet body where the holding leaf spring is disposed and in a region excluding the folded portion of the sheet body, and a pair of spacers Other pairs By a gap Sir is characterized in that it is able to accommodate fitted at least a portion of the protected object.
In the invention according to claim 1 having the above-described configuration, the sheet body has an action of covering an object to be protected attached to the overhead wire and protecting it while maintaining an insulating state. In addition, by using a flexible sheet as an insulating material, it is possible to cover each object to be attached by simply changing the size of the sheet to the object to be attached having various shapes and dimensions. Has the effect of In addition, the clamping leaf spring is attached to the sheet body to give shape retention to the sheet body, and acts to clamp the object to be mounted, thereby removing the sheet body from the object to be mounted. It has the effect | action of preventing suitably. Furthermore, by providing the clamping plate spring so as to be detachable from the sheet member, the clamping plate spring can be easily replaced when it is damaged. And a fixing tool has the effect | action of detachably fixing at least the corner | angular part of the sheet | seat body arrange | positioned facing each other in the state which folded the sheet | seat body in two. In addition, the spacer has an effect of forming a hollow portion for accommodating a mounting target object by expanding a pair of flat plate portions arranged to face each other in the sandwiching plate spring. In addition, at least two pairs of spacers form a fitting structure with the object to be protected, and when the invention according to claim 1 is mounted, the sheet body is caused to be displaced in the extension direction of the overhead wire. Has the effect of blocking. Further, by arranging the spacer in the region where the sandwiching plate spring is disposed in the sheet body and in the region excluding the folded portion of the sheet body, the spacer is paired using the elastic force of the sandwiching plate spring. A force is applied to bring the spacers close to each other, and the clamping leaf spring and the spacer work together like a clip. As a result, it has an effect of firmly fixing the sheet body to the mounted object. In addition, the fitting structure between the object to be mounted and the spacer according to the first aspect of the present invention can be formed simply by fixing the block spacer to the sheet body. This means that it is possible to provide the invention according to claim 1 that fits various types of attachment objects only by changing the mounting position of the spacer, and the versatility of the invention according to claim 1 Has the effect of increasing

The anti-slipping insulation protective sheet according to claim 2 is the anti-slipping insulation protective sheet according to claim 1, wherein the three-dimensional outer shape of the functional part of the spacer is a triangular prism, and the sheet body is folded in two. In this case, the pair of spacers arranged to face each other is in surface contact with each other.
In addition to the same function as that of the invention described in claim 1, the invention described in claim 2 having the above-described configuration has a three-dimensional external shape of the functional part of the spacer (concept including a hollow portion of the spacer), and When the sheet body is folded in half, the pair of spacers disposed opposite to each other are disposed so as to be in surface contact with each other, thereby reducing the area occupied by the spacer in the hollow portion of the sheet body. Have.
Moreover, when removing the invention of Claim 2 after use by making the external shape of the functional part of the spacer into a triangular prism shape, the handle is locked to the tip of the indirect tool according to Claim 2. By pulling the invention vertically upward, the spacer is pushed down by the object to be attached, and accordingly, the flat plate portion of the holding leaf spring is spread by the spacer, and finally, the object from the object to be attached is claimed in claim 2. It has the effect of allowing removal of the described invention.

The displacement prevention insulation protective sheet according to claim 3 is the displacement prevention insulation protection sheet according to claim 1 or claim 2, wherein the sheet body includes a pair of edge portions arranged to face each other. One or both of them is provided with a pinching protrusion extending from the sheet body.
In addition to the same operation as that of the invention described in claim 1 or 2, the invention described in claim 3 having the above-described configuration is provided with a clamping protrusion, so that the invention according to claim 3 can be mounted or removed. It has the effect of making it possible to easily perform the operation of turning up one side of the sheet body in a folded state using an indirect hot wire tool such as hot stick.

The displacement prevention insulation protective sheet according to claim 4 is the displacement prevention insulation protection sheet according to any one of claims 1 to 3, wherein the sheet bodies are arranged to face each other. An elongated flat plate-like structural material is provided at or near the pair of edges.
The invention described in claim 4 having the above-described configuration has a pair of members disposed opposite to each other in the sheet body by providing a structural material in addition to the same effects as those of the invention described in each of claims 1 to 3. It has the effect | action which raises the rigidity in the edge part or its vicinity.
In this case, when the folded-up sheet body is put on the object to be mounted, the state in which the corner portions of the sheet body face each other is reliably realized.
Thereby, it has the effect | action of making easy the fixation by the fixing tool of the corner | angular part of the sheet | seat body arrange | positioned mutually opposed, or its cancellation | release.
That is, it has the effect of facilitating the attaching / detaching work of the invention according to claim 4 to the mounted object.

The shift prevention insulation protective sheet according to claim 5 is the shift prevention insulation protection sheet according to any one of claims 1 to 4, wherein the fixture is a hook-and-loop fastener. To do.
In addition to the same effect as that of each of the first to fourth aspects, the invention described in claim 5 having the above-described configuration performs an operation of pressing or separating by using a fastener as a surface fastener. It has the effect | action of making it possible to perform fixation and the cancellation | release of the site | part in which a fixing tool is installed only. In this case, when using an indirect hot wire tool such as a hot stick, it has an effect of facilitating fixing and releasing by a fixing tool.

According to the first aspect of the present invention, the spacer is disposed in the region where the leaf spring is disposed in the sheet body and in the region excluding the folded portion of the sheet body, so that the elastic force of the sandwiching leaf spring is achieved. Using this, a force can be applied so that the pair of spacers arranged opposite to each other can be brought close to each other. Thereby, in invention of Claim 1, since the leaf | plate spring for clamping and a spacer cooperate and play a role like a clip, it can prevent suitably the detachment | leave of a sheet | seat body at the time of mounting | wearing, or position shift. .
In the first aspect of the invention, the bent portion of the clamping leaf spring tends to be fatigued and particularly easily damaged. In the first aspect of the present invention, the holding plate spring is detachably provided, so that the holding plate spring exhibits sufficient elastic force due to fatigue caused by use as well as damage to the holding plate spring. If it runs out, it can be replaced. As a result, it has the effect that the useful life of the invention of claim 1 can be extended.
Moreover, in invention of Claim 1, while providing a softness | flexibility by using the flexible sheet | seat material, providing shape retention property to a sheet | seat material by providing the leaf | plate spring for clamping in the center part. Can do. Thus, since the sheet body can be maintained in a desired shape when the invention according to claim 1 is attached and detached, the sheet body can be easily handled. In other words, since the sheet material includes the clamping plate spring, there is no fear that the sheet body is bent or sag due to its own weight when the indirect live tool is suspended and held on the handle. For this reason, when attaching and detaching the invention according to claim 1, it is not necessary to hold the sheet body with another indirect live tool other than the indirect live tool locked to the handle, and as a result, claim 1. The workability of the attaching / detaching work according to the invention can be improved.
Furthermore, in invention of Claim 1, it can be set as the shift | offset | prevention insulation protection sheet fitted to the other to-be-attached target object from which a form differs by providing the attachment position of the spacer in a sheet | seat body. That is, even if the form of the attachment target object is various, it is possible to easily produce the anti-slipping insulation protective sheet fitted to each form by simply changing the spacer installation position. In this case, even when manufacturing an anti-slipping insulation protection sheet that fits each of various types of mounted objects, an expensive mold is not required, so that the manufacturing cost can be reduced accordingly. Yes.

In addition to the same effect as that of the invention described in claim 1, the invention described in claim 2 can provide a relatively large spacer on the hollow portion side of the sheet body. As a result, since the fitting structure by the object to be mounted and the spacer can be strengthened, it is possible to more reliably prevent the invention according to claim 2 from coming off from the object to be mounted and causing a positional shift.
Furthermore, when removing the used sheet body, after the fixed state of the corner portion of the sheet body by the fixing tool is released, the indirect hot wire tool is simply locked to the handle and pulled up vertically. When the flat plate portion of the spacer is expanded with the contact between the spacer and the object to be attached, the overhead wire and the object to be attached accommodated in the hollow portion vertically above the spacer can be smoothly detached. Therefore, according to the invention described in claim 2, it is possible to easily remove the invention described in claim 2 from the mounted object.

In addition to the same effect as that of the invention described in claim 1 or 2, the invention described in claim 3 is provided with a clamping protrusion, so that, for example, an edge portion of the sheet body by an indirect hot wire tool such as a hot stick Can be easily clamped.
As a result, when attaching and detaching the invention according to the third aspect, the operation of turning up the sheet member can be easily performed, so that workability at the time of attaching and detaching can be improved.

In addition to the same effects as the inventions described in the first to third aspects, the invention according to the fourth aspect provides the shape retaining property at or near the edge of the sheet body by providing the structural material. Can be increased.
In this case, when the sheet body is folded in half and the indirect live tool is suspended and hung by the handle, the corners of the sheet body can be disposed in a state in which the corners are reliably opposed to each other. As a result, it becomes easy to perform the fixing work by the fixing tool and the releasing work thereof, and the attaching / detaching work of the invention of claim 4 can be further facilitated.

In addition to the same effect as the invention described in each of claims 1 to 4, the invention described in claim 5 performs an operation of pressing or separating the fixtures by using the fasteners as surface fasteners. Thus, it is possible to perform fixing and releasing by the fixing tool.
Since the operation | movement which presses or separates such fixing tools can be easily performed using an indirect hot wire tool, the workability | operativity at the time of the attachment or detachment work of the invention of Claim 5 can be improved.

(A) It is an expanded view of the outer surface side of the slip prevention insulation protection sheet which concerns on embodiment of this invention, (b) It is an expanded view of the inner surface side of the slip prevention insulation protection sheet which concerns on embodiment of this invention. It is a key map of a shift prevention insulation protection sheet concerning an embodiment of the invention. It is a key map of the leaf spring for pinching which constitutes the slip prevention insulation protection sheet concerning an embodiment of the invention. It is the perspective view which notched a part of the slip prevention insulation protection sheet which concerns on embodiment of this invention. It is sectional drawing of the slip prevention insulation protection sheet which concerns on embodiment of this invention. It is a fragmentary perspective view which shows an example of the use condition of the slip prevention insulation protection sheet which concerns on embodiment of this invention.

  The slip prevention insulating protective sheet according to the embodiment of the present invention will be described with reference to FIGS.

The form of the displacement prevention insulation protective sheet according to the embodiment of the present invention will be described in detail with reference to FIGS. 1 to 5.
FIG. 1A is a development view of an outer surface side of a slip prevention insulation protective sheet according to an embodiment of the present invention, and FIG. 1B is a development view of an inner surface side of the slip prevention insulation protection sheet according to an embodiment of the present invention. is there. Moreover, FIG. 2 is a conceptual diagram of the shift prevention insulation protective sheet which concerns on embodiment of this invention.
As shown in FIG. 1, an anti-slip insulation protective sheet 1 according to the present embodiment is installed on a flexible sheet body 2 made of an insulating material and an inner surface 2 b of the sheet body 2. 2 is attached to at least four corners 2d of the sheet body 2 so as to be removably accommodated in the pocket 3, and the sheet body 2 is held in a folded manner as shown in FIG. For example, a fixture 5 made of, for example, a hook-and-loop fastener, a plurality of pairs of block-like spacers 6 arranged so as to expand the internal space when the sheet body 2 is folded in two, and the sheet body 2 And a handle 7 installed on the outer side surface 2a of the folded portion 2c.
Further, in the displacement prevention insulating protective sheet 1 according to the present embodiment, the spacer 6 is disposed in a region of the sheet body 2 in which the clamping leaf spring 4 is disposed and in the region of the sheet body 2 excluding the folded portion 2c. Is. This reason will be described in detail later.
In addition, in the slip prevention insulating protective sheet 1 according to the present embodiment, it will be described in detail later with reference to FIG. 6, but in the gap P between the paired spacer 6 and the other spacer 6 forming the pair, It is comprised so that at least one part of the to-be-mounted object attached to an overhead wire can be accommodated, and it is comprised so that a fitting structure may be formed by the to-be-mounted object and the spacer 6 by this. More specifically, the pair of spacers 6 in the anti-slipping insulation protection sheet 1 and the gap P between the other spacers 6 forming the pair are the widths in the overhead line direction of the object to be mounted that are to be accommodated in the gap P. It is preferable that the same or a width in the overhead line direction of the mounted object to be accommodated in the gap P is added with a clearance (see FIGS. 1 and 2).

In the present embodiment, the case where the planar shape of the sheet body 2 is rectangular is described as an example. However, the planar shape of the sheet body 2 is a plane that is line-symmetric with respect to the folded portion 2c. Any planar shape may be used as long as it is a shape and can cover the object to be attached without leaving any excess.
In addition, when the planar shape of the sheet body 2 is defined as described above, it may be assumed that the sheet body 2 does not necessarily include the corner portion 2d (for example, a circle). In this case, in order to prevent the sheet body 2 from turning over and coming off due to wind or the like when using the anti-slipping insulation protective sheet 1, the fixture 5 is attached to a desired portion of the edge 2e of the sheet body 2. It is good to have it installed.
Furthermore, in the slip prevention insulating protective sheet 1 according to the present embodiment, an example is provided in which the pocket 3 is provided in the shape of the inner surface 2b of the sheet body 2 and the sandwiching leaf spring 4 is detachably accommodated in the pocket 3. Although described with reference, the sheet body 2 may have a laminated structure, and the sandwiching leaf spring 4 may be detachably accommodated between the layers.
In addition, although the case where a hook-and-loop fastener is used as the fixture 5 is described as an example in the anti-slip insulation protection sheet 1 according to the present embodiment, the fixture 5 is not necessarily a hook-and-loop fastener. Any fixture can be used as long as it can be easily attached and detached using an indirect hot wire tool such as a hot stick. As an example of the fixture 5 other than the hook-and-loop fastener, a magnet, an adhesive material, a snap, or the like can be used.

Furthermore, in the slip prevention insulating protective sheet 1 according to the present embodiment, when the sheet body 2 is folded in two, the hook-and-loop fastener 5a and the hook-and-loop fastener 5b that fix the corners 2d that are arranged to face each other are provided. Separately, the folded portion 11 is provided at the corner 2d and the edge 2e of the sheet body 2, and the corners 2d and the edges 2e arranged to face each other are brought into surface contact with each other and fixed by the fixture 5. Thereafter, the overlapping corner portion 2d and edge portion 2e may be fixed so as to be sandwiched between the folded portions 11.
More specifically, the folded portion 11 extending from the sheet body 2 at the corner 2d and the edge 2e of the sheet body 2 is configured to be rotatable in the direction indicated by the symbol Q in FIG. Furthermore, the surface fastener male 5b is provided on the inner surface 2b side of the folded portion 11 and the outer surface 2a side of the sheet body 2 which is in surface contact with the surface fastener male 5b of the folded portion 11 when the folded portion 11 is rotated and folded. The hook-and-loop fastener 5a may be installed, and the corner portion 2d and the edge portion 2e of the sheet body 2 may be fixed by the folded portion 11 as well.
In addition, the folding | returning part 11 may be provided only in the corner | angular part 2d or the edge part 2e of the sheet | seat body 2, and may be provided in both the corner | angular part 2d and the edge part 2e.
In this case, the corner portion 2d and the edge portion 2e of the sheet body 2 can be firmly fixed as compared with the case where the sheet portion 2 is fixed without using the folded portion 11. More specifically, it is possible to suitably prevent the displacement-preventing insulating protective sheet 1 attached to the object to be attached due to strong wind or the like during use.
In addition, in order to make the folding | returning part 11 return or peeling work easy, it is good to provide the knob 12 in which the fixing tool 5 (for example, hook-and-loop fastener 5a, hook-and-loop fastener male 5b) is not provided in the front-end | tip part of the folding | turning part 11. .
Furthermore, you may fix using only the folding | returning part 11, without providing the fixing tool 5 in the position where the corner | angular part 2d of the sheet | seat 2 and the edge part 2e mutually oppose. In this case, it is considered that it takes a little time to fix the folded portion 11, but there is an advantage that the hollow portion of the sheet body 2 can be widened. Further, the fixing means for the folded portion 11 need not be specified as a hook-and-loop fastener as illustrated, and other fixing tools as exemplified above may be used.

In addition, the anti-slipping insulation protective sheet 1 according to the present embodiment may include an elongated flat plate-like structural material 9 on the edge 2e of the sheet body 2 or in the vicinity thereof.
Since the structural member 9 is less likely to be damaged due to fatigue or the like than the sandwiching plate spring 4, it may be integrally fixed on the surface or inside of the sheet body 2, 2, even if a bag-like structural material holding portion 10 having no opening is provided on the inner side surface 2 b of the sheet body 2 and a structural material 9 separate from the sheet body 2 is accommodated therein, Good.
By providing the structural member 9 as described above on the edge 2e of the sheet body 2, the shape retainability of the edge 2e and the vicinity thereof can be improved.
In this case, when the sheet body 2 is held in a folded state, it is possible to easily and reliably arrange the corner portions 2d and the edge portions 2e of the sheet body 2 to face each other. As a result, the fixing work by the fixing tool 5 can be performed smoothly.

Here, the structure of the anti-slipping insulation protective sheet 1 according to the present embodiment will be described in more detail with reference to FIGS. 3 to 5.
FIG. 3 is a conceptual diagram of a sandwiching leaf spring that constitutes the displacement prevention insulating protective sheet according to the embodiment of the present invention. FIG. 4 is a perspective view in which a part of the shift prevention insulating protective sheet according to the embodiment of the present invention is cut out. Further, FIG. 5 is a cross-sectional view of a shift prevention insulating protective sheet according to the embodiment of the present invention. In addition, the same code | symbol is attached | subjected about the same part as what was described in FIG. 1 or FIG. 2, and the description about the structure is abbreviate | omitted.
A holding plate spring 4 as shown in FIG. 3 is accommodated in the pocket 3 provided on the inner surface 2 b side of the sheet body 2. As such a sandwiching leaf spring 4, for example, as shown in FIG. 3, a flat plate made of synthetic resin and bent into a U-shaped cross section can be used. When such a clamping plate spring 4 is accommodated in the pocket 3 of the sheet body 2, the handle 7 is placed on the folded portion 4 a of the clamping plate spring 4 (on the folded portion 2 c of the sheet body 2). The spacers 6 are respectively disposed on the inner surface side of the portion 4c (the inner surface 2b of the sheet body 2).
In such a sandwiching plate spring 4, the bent portion 4b tends to be damaged particularly by fatigue. In view of such circumstances, the anti-slip insulation protection sheet 1 according to the present embodiment has a configuration in which the clamping leaf spring 4 is detachably provided. In this case, when the bent portion 4b of the sandwiching plate spring 4 is softened or damaged due to fatigue, it can be replaced with a new sandwiching plate spring 4. Therefore, the anti-slipping insulation protective sheet according to the present embodiment. 1 can continue to be used. That is, the useful life of the anti-slipping insulation protective sheet 1 according to the present embodiment can be extended.

As shown in FIGS. 4 and 5, the spacer 6 in the anti-slipping insulation protective sheet 1 according to the present embodiment protrudes on the inner surface 2 b side when the sheet body 2 is folded in two.
As shown in FIGS. 4 and 5, the spacer 6 is disposed in the sheet body 2 in the region where the clamping leaf spring 4 is disposed, that is, on the pocket 3 in which the clamping leaf spring 4 is accommodated. By installing the spacer 6 on the base plate, a force can be applied so that the pair of spacers 6 arranged to face each other are brought close to each other by the elastic force of the clamping leaf spring 4. That is, the sheet spring 2 and the spacer 6 cooperate with each other so that the sheet body 2 functions like a clip, so that the sheet body 2 can be used when the anti-slipping insulation protective sheet 1 according to the present embodiment is used. Can prevent misalignment.

Furthermore, in the slip prevention insulating protective sheet 1 according to the present embodiment, as shown in FIGS. 4 and 5, the three-dimensional shape of the functional part 6 a excluding the joint portion 6 b of the spacer 6 (this three-dimensional shape is formed by the spacer 6. It is good to make it into a triangular prism shape.
In this case, as shown in FIG. 5, when the sheet body 2 is folded in half, the area occupied by the spacer 6 in the hollow portion of the sheet body 2 can be reduced.
That is, since the three-dimensional shape of the pair of spacers 6 arranged to face each other can be made compact, the spacers 6 can be reliably disposed even if the space in which the spacers 6 can be disposed is small. In addition, in this case, since a sufficiently large individual spacer 6 can be used, the rigidity and strength of the spacer 6 can be increased.
Thereby, it becomes possible to form a firm fitting structure with the object to be mounted and the spacer 6, and it is possible to suitably prevent the positional deviation and detachment of the deviation prevention insulating protective sheet 1 according to the present embodiment. It is.
In addition, in the slip prevention insulation protection sheet 1 which concerns on this Embodiment, although the case where the spacer 6 of the same magnitude | size is installed is mentioned as an example, the spacer in the horizontal direction of sectional drawing shown in FIG. 5 is demonstrated. If the height of 6 is constant, there is no particular need to specify the length of the spacer 6 in the axial direction as one type, and it may be set to a desired length.

Below, the usage state and usage method of the slip prevention insulation protection sheet 1 which concerns on this Embodiment are demonstrated, referring FIG.
FIG. 6 is a partial perspective view showing an example of a usage state of the shift prevention insulating protective sheet according to the embodiment of the present invention. The same parts as those described in FIGS. 1 to 5 are denoted by the same reference numerals, and description of the configuration is omitted. Note that FIG. 6 is arranged on the front side of the paper surface in the perspective view of the displacement prevention insulating protective sheet 1 according to the present embodiment shown in FIG. 2 so that the inside of the hollow portion of the sheet body 2 can be easily understood. The state which cut off the half of the sheet | seat body 2 is shown.
FIG. 6 shows a state in which an example of the camber mounted on the overhead wire 13 is protected by being covered with the shift prevention insulating protective sheet 1 according to the present embodiment.
When the object 14 to be mounted is protected by the anti-slipping insulation protective sheet 1 according to the present embodiment, a pair of spacers 6 (only one of them is shown in FIG. 6) disposed in the hollow portion of the sheet body 2. ) And another pair of spacers 6 (only one of them is shown in FIG. 6) in a gap (gap P in FIGS. 1, 2, and 4), a part of fitting object 14 (fitting portion 14a) ) And the fitting structure is formed by the spacer 6 and the attachment target object 14 (fitting portion 14a), thereby preventing the positional deviation of the sheet body 2. That is, it is possible to reliably prevent the sheet body 2 from being displaced in the extending direction of the overhead wire 13.
Further, in the anti-slipping insulation protective sheet 1 according to the present embodiment, as described above, the pair of spacers 6 and 6 are brought close to each other by the elastic force of the clamping leaf spring 4. Force is acting. For this reason, when the sheet body 2 is mounted, the edge portions 2e disposed to face each other in the folded-up sheet body 2 are difficult to spread. That is, the position of the spacer 6 at the time of mounting the sheet body 2 is suitably held by the elastic force of the clamping leaf spring 4 and the fitting structure between the mounted object 14 and the spacer 6, thereby preventing displacement. It is possible to suitably prevent the insulation protective sheet 1 from being displaced or detached.

Finally, a method for attaching and detaching the anti-slipping insulation protective sheet 1 according to the present embodiment will be described with reference to FIGS.
Prior to the mounting of the anti-slipping insulation protective sheet 1 according to the present embodiment, the anti-slipping insulating protective sheet 1 in which the spacer 6 is fixed at a position where a fitting structure can be formed with the mounted object 14 is produced. Keep it.
And when mounting | wearing the to-be-attached target object 14 installed in the overhead wire 13 with the slip prevention insulation protection sheet 1 which concerns on this Embodiment as mentioned above, on the handle 7 shown in FIG. The tip of an indirect hot wire tool such as hot stick is locked, and the displacement prevention insulating protective sheet 1 is suspended and held by this indirect hot wire tool. At this time, the sheet body 2 in the anti-displacement insulating protective sheet 1 according to the present embodiment includes the sandwiching plate spring 4, so that the sheet body 2 is maintained in a folded state without causing sagging or the like.
Next, the edge portion 2e of the sheet body 2 in this state or the pinching protrusion 8 extending to the edge portion 2e is sandwiched by another indirect live tool (for example, hot stick etc.) One side of the sheet body is turned up, and as shown in FIG. 6, the gap between the spacers 6 and 6 disposed in parallel with the extending direction of the overhead wire 13 in the hollow portion of the sheet body 2 (the gap in FIGS. P) accommodates a part (fitting portion 14a) of the attachment target 14, and accommodates the overhead wire 13 in the gap formed between the upper surface of the spacer 6 and the folded portion 2c of the sheet body 2. .

Thereafter, the sheet body 2 that has been turned up by another indirect hot wire tool (for example, a hot stick or the like) is returned to the original position, and the object 14 to be attached is prevented from being displaced according to the present embodiment. It is clamped by the sheet body 2 (plate spring 4 for clamping).
Furthermore, using other indirect hot wire tools (for example, hot stick etc.), the corner | angular part 2d and the edge part 2e of the sheet | seat body 2 arrange | positioned facing each other are overlapped and contacted, and the fixture 5 (for example, These are fixed by the hook-and-loop fastener 5a and hook-and-loop fastener 5b).
At this time, when the edge 2e of the sheet body 2 is provided with the structural material 9, since no sagging occurs in the edge 2e of the sheet body 2, the corner 2d and the edge 2e are not displaced. It can be made into the state which mutually opposed, Thereby, fixation of the corner | angular part 2d and the edge part 2e by the fixing tool 5 can be performed smoothly and reliably.
Further, in the case where the sheet body 2 includes the folded-back portion 11, the fixture provided on the folded-back portion 11 by folding the folded-back portion 11 on the corner portion 2 d and the edge portion 2 e that are fixed in a stacked state. 5 (for example, hook-and-loop fastener 5a and hook-and-loop fastener male 5b) may be used.
According to such an anti-slip insulation protection sheet 1 according to the present embodiment, in addition to the attachment target object 14 being held by the holding plate spring 4, the attachment target object 14 (fitting portion 14a). Also, the fitting structure between the spacer 6 and the spacer 6 is formed, and further, the corner 2d and the edge 2e of the sheet body 2 are fixed by the fixture 5 to be firmly fixed.

On the other hand, in order to remove the displacement prevention insulation protection sheet 1 according to the present embodiment from the mounted object 14, the above procedure may be reversed.
Alternatively, as a simpler removal method, after releasing the fixing state of the fixture 5 that fixes the corner 2d and the edge 2e of the sheet body 2, for example, the tip of an indirect stopcock tool such as a hot stick is attached to the handle 7 The slip prevention insulation protection sheet 1 according to the present embodiment can also be removed by locking and slowly pulling the slip prevention insulation protection sheet 1 vertically upward in this state.
More specifically, after the corner 2d and the edge 2e arranged opposite to each other in the sheet body 2 are separated from each other, the tip of an indirect stopcock tool such as a hot stick is engaged with the handle 7. When slowly pulling it upward vertically, a force that pushes down vertically by the overhead wire 13 acts on the upper surface of the spacer 6 projecting into the hollow portion of the sheet body 2, and accordingly, in the cross-sectional view of FIG. A pressing force in a direction indicated by a symbol R in the drawing acts on the upper surface of the spacer 6 shown.
At this time, the spacer 6 arranged on the vertically upper side in FIG. 5 pushes down the other spacer 6 arranged on the vertically lower side and being in surface contact with it. The spacers 6 and 6 forming a pair are separated from each other by a force that spreads the four flat plate portions 4c and 4c. Then, along with this operation, the overhead wire 13 is released from the gap between the spacers 6 and 6 that are spread out, so that the deviation according to the present embodiment is prevented from the overhead wire 13 and the attached object 14 attached thereto. The insulation protection sheet 1 can be removed.
Thus, in the slip prevention insulation protection sheet 1 according to the present embodiment, the slip prevention insulation protection sheet 1 can be removed without much trouble as compared with the mounting.

According to such an anti-slip insulation protective sheet 1 according to the present embodiment, by changing the installation position of the spacer 6 in the sheet body 2 (however, the position where the spacer 6 is installed is Therefore, it is possible to easily manufacture and provide the anti-slipping insulation protective sheet 1 corresponding to the mounted object 14 in various forms. In addition, there is no need to prepare an expensive mold or the like for customizing the anti-slipping insulation protection sheet 1 so that it can be attached to a specific object 14 so that it is special and less frequently used. The anti-slip insulation protective sheet 1 for protecting the object 14 can be manufactured and provided at a low cost.
Therefore, according to the displacement prevention insulation protection sheet 1 according to the present embodiment, parts that are easy to handle and easily damaged can be easily replaced, and customized according to the mounted object 14 having various forms. In addition, it has an original effect that an insulating protective sheet that can suitably prevent displacement and detachment can be provided at low cost.
In addition, as the mounted object 14 that can use the anti-slipping insulation protective sheet 1 according to the present embodiment, in addition to the above-described camler, for example, a high-voltage underline connector cover installed on the overhead wire 13, a high-pressure branch There are sleeve covers and indirect compatible high-pressure branch covers.

  As described above, the present invention is an anti-slipping insulation protective sheet for covering and protecting a mounted object to be mounted on an overhead wire, and can be used in the technical field related to power equipment.

  DESCRIPTION OF SYMBOLS 1 ... Shift prevention insulation protective sheet 2 ... Sheet | seat body 2a ... Outer side surface 2b ... Inner side surface 2c ... Folding part 2d ... Corner | angular part 2e ... Edge part 3 ... Pocket 4 ... Leaf spring 4a ... Folding part 4b ... Bending part 4c ... Flat part 5 ... Fixing tool 5a ... Hook fastener female 5b ... Hook fastener male 6 ... Spacer 6a ... Functional part 6b ... Joint part 7 ... Handle 8 ... Projection for clamping 9 ... Structural material 10 ... Structural material holding part 11 ... Folding part 12 ... Knob 13 ... overhead wire 14 ... mounted object (camlar) 14a ... fitting part gap ... P

Claims (5)

An anti-slip insulation protective sheet for covering and protecting the object to be protected installed on the overhead wire,
A flexible sheet member made of an insulating material, a sandwich plate spring made of a U-shaped flat plate member detachably mounted on the inside or the inner surface of the sheet member, and at least the sheet member A fixture that is installed at four corners and holds the sheet body in a folded state; and a plurality of pairs of block-shaped spacers that are arranged to expand the internal space when the sheet body is folded in two; And a handle installed on the folded portion of the sheet body,
The spacer is disposed in an area in the sheet body where the clamping leaf spring is disposed and in an area excluding the folded portion of the sheet body,
An insulating protective sheet for preventing misalignment, wherein at least a part of the object to be protected can be fitted and accommodated by a gap between the pair of spacers and the other pair of spacers. The outer three-dimensional shape of the functional part of the spacer is a triangular prism,
The anti-slipping insulation protective sheet according to claim 1, wherein when the sheet body is folded in half, the pair of spacers arranged to face each other are in surface contact with each other.   The said sheet | seat body is equipped with the protrusion for clamping extended from the said sheet | seat body in any one or both of a pair of edge part arrange | positioned facing, The Claim 1 or Claim 2 characterized by the above-mentioned. The insulation protective sheet for preventing displacement described in 1.   The slip prevention according to any one of claims 1 to 3, wherein the sheet body is provided with an elongated flat plate-like structural material at or near a pair of edges arranged opposite to each other. Insulation protection sheet.   The displacement prevention insulation protective sheet according to any one of claims 1 to 4, wherein the fixture is a hook-and-loop fastener.

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