JP2020114037A - Insulation cover - Google Patents

Abstract

To provide an insulation cover capable of being widely applicable even if a form of a charge part is different.SOLUTION: An insulation cover 10 is constituted of a pair of semi-cylindrical bodies 12, 14 which is a cylindrical body covering an outside of one or more wires L by being combined with each other. A charge part J of the wires L is arranged at and in contact with the central part inside the semi-cylindrical body 12 and a deformable charge holding part 50 is formed by means of being pushed by the charge part J.SELECTED DRAWING: Figure 3

Description

The present invention relates to an insulating cover that covers a portion where a core wire or the like is exposed in an intermediate portion of an electric wire.

For example, in the construction of overhead electric wires and the like, an insulating cover for covering the exposed portion of the core wire or the like in the middle portion of the electric wires has been conventionally developed.

When carrying out the construction to branch one overhead wire into two, a compression sleeve is generally used for branching. In this case, since the insulation coating is stripped off at the branched points and the core wires are pressed against each other with a metal compression sleeve, the metal parts may be exposed and there is a risk of electric shock or short circuit. Is formed. Therefore, an insulating cover that covers the charging part is disclosed to prevent an electric shock accident (for example, Patent Documents 1 and 2).

Also, in addition to branching parts of overhead wires, etc., another insulation covering the charging part generated at the location where the insulation coating is stripped off from the wires for grounding or temporarily connecting to other wires The cover is also open to the public (for example, Patent Document 3).

JP-A-11-318015 JP, 2010-74936, A JP, 2011-250599, A

However, since the shape of the charging part is different between the branched part of the wire and the part where the insulation coating is simply stripped from the wire, etc., conventionally, there are various shapes of the charging part that match the morphological characteristics of the charging part. Since it is necessary to prepare an insulating cover and the number of types of insulating covers inevitably increases, there is a problem in that there is a large cost disadvantage in terms of production and management of the insulating cover.

The present invention has been made in view of such problems, and an object thereof is to provide an insulating cover that can be widely applied even when the shape of the charging unit is different.

According to one aspect of the invention,
An insulating cover comprising a pair of semi-cylindrical bodies that become a tubular body that covers the outside of one or more electric wires when combined with each other,
An insulating cover is provided, in which a charging portion of the electric wire is disposed in contact with a center portion inside one of the half cylinders, and a charging portion holding portion that is deformable by being pressed by the charging portion is formed. To be done.

Preferably, a recess is formed at a position of the charging unit holding unit where the charging unit abuts, and an exposed core wire is fitted into the one electric wire by removing the insulating coating.

Suitably, between the outer edge in the direction orthogonal to the longitudinal direction of the semi-cylindrical body inside the semi-cylindrical body and the charging part holding part, the semi-cylindrical body is long with respect to the electric wire. A movement prevention unit is provided to prevent movement in a direction orthogonal to the direction.

Preferably, the half cylinder moves in the longitudinal direction with respect to the electric wire between an end of the half cylinder in the longitudinal direction of the half cylinder and the charging unit holding portion. There is provided a longitudinal movement preventing portion for preventing the movement.

Suitably, between the end in the longitudinal direction of the half cylinder and the position corresponding to the charging part holding portion inside the other half cylinder, the half cylinder is provided with respect to the electric wire. A second longitudinal movement prevention portion is provided to prevent movement in the longitudinal direction.

Preferably, the second longitudinal movement prevention portion acts on the electric wire at a position closer to the charging portion holding portion than the longitudinal movement prevention portion in the longitudinal direction of the half cylinder.

According to the present invention, since the charging unit holding unit that holds the charging unit of the electric wire inside the tubular body is pushed by the charging unit and is deformable, even when the charging unit has a different form. It has been possible to provide a widely applicable insulating cover.

It is a figure which shows the inside of the insulation cover 10 to which this invention was applied. It is a perspective view showing the inside of insulating cover 10 to which the present invention is applied. FIG. 6 is a perspective view for explaining a procedure of attaching the insulating cover 10 to the electric wire L including the compression sleeve A. It is a perspective view showing other examples at the time of attaching insulating cover 10 to electric wire L containing compression sleeve A. It is sectional drawing which shows the state which attached the insulation cover 10 to the electric wire L containing the compression sleeve A. It is sectional drawing which shows the state which attached the insulating cover 10 to the electric wire L containing the shorter compression sleeve A. It is a perspective view for explaining the procedure of attaching insulating cover 10 to the place where insulating coating H was stripped off from electric wire L. It is sectional drawing which shows the state which attached the insulating cover 10 to the location where the insulation coating H was stripped off from the electric wire L. FIG. 4 is a cross-sectional view in a direction orthogonal to the longitudinal direction of the insulating cover 10, showing a state in which the insulating cover 10 is attached to a location where the insulating coating H has been stripped from the electric wire L. It is a figure which shows the charging part holding part 50 which concerns on a modification.

(Structure of insulating cover 10)
1 and 2 show an insulating cover 10 according to an embodiment to which the present invention is applied. The insulating cover 10 is provided with a pair of half-cylindrical bodies 12 and 14 and a hinge 16. By combining the half-cylindrical bodies 12 and 14 with each other, the insulation cover 10 serves as a tubular body that covers the outside of one or more electric wires. It becomes the insulating cover 10. The two semi-cylindrical bodies 12 and 14 are integrally formed by connecting opposite edges (inner edges in a direction orthogonal to the longitudinal direction of the semi-cylindrical bodies 12 and 14) with a hinge 16. Further, the two half cylinders 12 and 14 are basically formed in line symmetry with respect to the hinge 16 as a center. Therefore, the configuration of the half cylinder 12 will be described in detail below, and as for the half cylinder 14, basically, only the portions different from the half cylinder 12 will be described with reference to the description of the half cylinder 12.

Throughout the present specification, the current-carrying member inside the electric wire is referred to as a core wire S, the insulating member that covers the outside of the core wire S is referred to as an insulating coating H, and the entire core wire S covered with the insulating coating H is referred to. Is referred to as a covered electric wire L or simply an electric wire L. Further, a portion where the metal portion of the electric wire L is exposed and there is a risk of electric shock or short circuit is called a charging portion J.

The semi-cylindrical body 12 generally has a main body portion 20, shutter portions 22 formed at both end portions of the main body portion 20 in the longitudinal direction, and a direction perpendicular to the longitudinal direction in which the hinge 16 of the main body portion 20 is formed. The semi-cylindrical body 12 is configured by including an engaging portion 24 provided at the end opposite to the end, which are integrated. Of course, the main body portion 20, the shutter portion 22 and the like may be formed as separate bodies, and then, the semi-cylindrical body 12 may be configured by combining them by means such as adhesion. Further, the hinge 16 is not an indispensable constituent element, and the pair of semi-cylindrical bodies 12, 14 may be formed as separate bodies, and these may be combined by means such as fitting to form a tubular body.

Regarding the semi-cylindrical bodies 12 and 14, of the end edges in the direction orthogonal to the longitudinal direction, the one to which the hinge 16 is connected is called the "inner end edge" as described above, and the opposite side is the "outer end edge". ".

The main body 20 is a semi-cylindrical member extending in the longitudinal direction. In the present embodiment, the main body portion 20 is formed in a “square tubular shape”, but of course, the present invention is not limited to this, and may be formed in a “round tubular shape” or a “polygonal tubular shape”. That is, the terms “cylindrical” and “semi-cylindrical” are concepts including “square cylinder”, “round cylinder”, “polygonal cylinder” and others.

The main body portion 20 is provided with a charging portion holding portion 50, a movement prevention portion 52, a longitudinal movement prevention portion 54, and a recess portion 56.

The charging part holding part 50 is formed in the center part of the inside of the main body part 20 of the half-tube 12, the charging part J of the electric wire L is placed in contact with the charging part holding part 50, and the charging part holding part 50 can be deformed by being pushed by the charging part J. It is like this.

As shown in the figure, the charging section holding section 50 in the present embodiment is a central section in which both ends of a strip-shaped member are connected to the central section of the semi-cylindrical body 12 and the charging section J of the electric wire L is disposed in contact therewith. By forming the recess 58 in the, the cross-sectional shape is substantially "M"-shaped. The width of the recess 58 (that is, the width of the charging unit holding unit 50) is formed to be slightly shorter than the width of the charging unit J in which the insulation coating H of one wire L is peeled off and the core wire S is exposed. Is preferred.

The movement preventing portion 52 is a substantially triangular flat plate portion formed so as to project between the outer edge of the inside of the half cylinder 12 and the charging portion holding portion 50. Specifically, one side of the substantially triangular shape facing the charging unit holding unit 50 extends so as to be substantially perpendicular to the inner surface of the half cylinder 12.

The semi-cylindrical body 12 in the present embodiment is provided with three such movement preventing portions 52 at predetermined intervals in the longitudinal direction. Thereby, with respect to the electric wire L held between the pair of semi-cylindrical bodies 12 and 14, the semi-cylindrical bodies 12 and 14 (insulating cover 10) move in the longitudinal direction of the semi-cylindrical bodies 12 and 14 (insulating cover 10). It is possible to prevent undesired movement in the orthogonal direction. Of course, with respect to the shape, number, arrangement interval, etc. of the movement preventing portions 52, the semi-cylindrical bodies 12 and 14 (insulation cover 10) move undesirably with respect to the electric wire L in the direction orthogonal to the longitudinal direction thereof. The present invention is not limited to this embodiment as long as the above can be prevented.

The longitudinal movement prevention portion 54 is a substantially triangular flat plate-like portion that is formed so as to project between the longitudinal edge of the semi-cylindrical body 12 and the charging portion holding portion 50 inside the semi-cylindrical body 12. .. Specifically, one side of the substantially triangular shape facing the charging unit holding unit 50 extends so as to be substantially perpendicular to the inner surface of the half cylinder 12.

In the semi-cylindrical body 12 in the present embodiment, the longitudinal movement prevention portion 54 has a predetermined interval in the direction orthogonal to the longitudinal direction between one longitudinal edge of the semi-cylindrical body 12 and the charging unit holding portion 50. In the same manner, between the other end in the longitudinal direction and the charging unit holding unit 50, four are also disposed at a predetermined interval in the direction orthogonal to the longitudinal direction. Thereby, with respect to the electric wire L held between the pair of semi-cylindrical bodies 12 and 14, the semi-cylindrical bodies 12 and 14 (insulating cover 10) move in the longitudinal direction of the semi-cylindrical bodies 12 and 14 (insulating cover 10). It is possible to prevent undesired movement toward the end. Of course, the shape, the number, the arrangement interval, etc. of the longitudinal movement prevention portions 54 are set so that the semi-cylindrical bodies 12 and 14 (insulating cover 10) move undesirably in the longitudinal direction with respect to the electric wire L. The invention is not limited to this embodiment as long as it can be prevented.

In order to increase the strength of the semi-cylindrical body 12 against bending/torsional stress, etc., the recessed portions 56 are formed at four large and small locations inside the semi-cylindrical body 12 in the present embodiment. Specifically, a pair of relatively narrow recesses 56 are provided between the charging unit holder 50 and each longitudinal movement prevention unit 54. In addition, a pair of relatively wide recesses 56 are provided between each longitudinal movement prevention portion 54 and both longitudinal ends of the main body portion 20 of the semi-cylindrical body 12.

The shutter portion 22 is a portion for making it difficult for rainwater, insects, dust, etc. from the outside to enter the inside of the insulating cover 10 from both longitudinal ends of the semi-cylindrical bodies 12, 14, and projects from the inner surface of the semi-cylindrical body 12. A plurality of strip-shaped rainwater intrusion preventing tongue pieces 60 are provided.

Further, the outer end of the shutter portion 22 is formed with an inclined surface 62 that inclines inward from the outer side of the semi-cylindrical bodies 12, 14 toward the outer side in the longitudinal direction of the semi-cylindrical bodies 12, 14. As a result, the inclined surface 62 formed on the semi-cylindrical body 12 and the inclined surface 62 formed on the semi-cylindrical body 14 and opposed thereto reduce the opening area of the insulating cover 10 at the longitudinal end. The synergistic effect with the presence of the rainwater intrusion prevention tongue piece 60 described above makes it more difficult for rainwater, insects, dust, and the like from entering the inside of the insulating cover 10 from the outside. The inclined surface 62 according to the present embodiment is configured by combining a plurality of strip-shaped small plate materials.

In the case of the present embodiment, the fastening portion 24 includes the belt-shaped flat surface 63 formed on the outer end edges of the semi-cylindrical bodies 12 and 14, and the three fastening tools (female females) provided on the belt-shaped flat surface 63 of the semi-cylindrical body 12. ) 64 and three engaging members (male) 66 provided at corresponding positions on the strip plane 63 of the semi-cylindrical body 14. As a result, when the pair of half-cylindrical bodies 12, 14 are combined with each other around the hinge 16, the respective engaging members (female) 64 and the corresponding engaging tools (male) 66 are engaged with each other. The state in which the half cylinders 12 and 14 are combined can be maintained.

Of course, the engaging portion 24, and particularly the engaging tools 64 and 66 are not limited to those of the present embodiment, and may be anything as long as the pair of half-cylindrical bodies 12 and 14 can be held in a combined state. It may be.

Next, the other half cylinder 14 will be described. The other half-cylindrical body 14 also has a main body portion 20, a shutter portion 22, and an engagement portion 24.

Further, the main body portion 20 of the other half-cylindrical body 14 is provided with a movement preventing portion 52, a longitudinal movement preventing portion 54, a recess portion 56, and a second longitudinal movement preventing portion 70.

The movement prevention portion 52 of the half cylinder body 14 is basically the same as the movement prevention portion 52 of the half cylinder body 12 described above, but the movement prevention portion 52 of the half cylinder body 12 is prevented from interfering with the movement prevention portion 52 of the half cylinder body 12. The movement preventing portions 52 of the body 14 are formed at positions fitted between the movement preventing portions 52 of the semi-cylindrical body 12, respectively.

Since the height of the longitudinal movement prevention portion 54 is kept low so as not to interfere with the opposing longitudinal movement prevention portion 54, the longitudinal movement prevention portion 54 in the half cylinder body 14 is arranged in the longitudinal direction in the half cylinder body 12. It is formed at a position corresponding to the direction movement preventing portion 54. Of course, instead of this, like the movement preventing portion 52, it may be formed at a position fitted between the longitudinal movement preventing portions 54 of the semi-cylindrical body 12.

The recessed portion 56 of the half cylinder body 14 is basically the same as the recessed portion 56 of the half cylinder body 12, but since the charging portion holding portion 50 is not formed in the half cylinder body 14, the half of the present embodiment is omitted. The recessed portion 56 of the tubular body 14 is composed of three parts, that is, a central portion of the semi-cylindrical body 14 and ones formed on both sides in the longitudinal direction with the central portion as the center.

The second longitudinal movement prevention portion 70 is a portion formed only on the half cylinder body 14 in the present embodiment. The second longitudinal movement prevention portion 70 is composed of a pair of rectangular flat plates 72, and one side of each rectangular flat plate 72 is the inner surface of the main body portion 20 of the semi-cylindrical body 14, and the longitudinal movement prevention portion 54. It is attached closer to the center than. The facing side 74, which is attached to the inner surface of the main body 20 and faces the one side, is located closer to the center than the one side and is rotatable about the one side with respect to the main body 20. Has become.

The hinge 16 is a member attached to the inner end edges of the two half-cylindrical bodies 12 and 14 as described above, has the hinge shutter portions 80 at both ends in the longitudinal direction, and temporarily retains at both ends in the longitudinal direction. 82, and further has a second movement preventing portion 84 at the center of the inner surface.

The hinge shutter portion 80 has a rainwater intrusion prevention tongue piece 86 similar to the rainwater intrusion prevention tongue piece 60 provided on the half cylinders 12 and 14, and a partition portion 88.

The rainwater intrusion prevention tongue 86 is the same as the rainwater intrusion prevention tongue 60 provided in the half cylinders 12 and 14 except that the rainwater intrusion prevention tongue 60 is slightly shorter than the rainwater intrusion prevention tongue 60. The description of the prevention tongue piece 60 is cited.

The partition portion 88 is a plate-shaped material that is erected in a substantially vertical direction from the inner surfaces of the both ends of the hinge 16 in the longitudinal direction, and when the insulating cover 10 is formed by combining the two half cylinders 12 and 14, the insulation is performed. The upper end of the cover 10 at both ends is closed.

As will be described later, the temporary retaining portion 82 forms the insulating cover 10 by combining the semi-cylindrical bodies 12 and 14 with each other and facilitates the work of covering the charging portion J of the electric wire L with the insulating cover 10. This is a portion for temporarily fixing the tubular body 12 in a state of being brought close to the half tubular body 14. The temporary retaining portion 82 is composed of a pair of temporary retaining portions (female) 90 and a temporary retaining portion (male) 92.

The temporary retaining portions (female) 90 are strip-shaped portions protruding from the vicinity of the boundaries between the hinge 16 and the semi-cylindrical body 14 at both ends in the longitudinal direction, and the temporary retaining portions (male) 92 are fitted into the tip portions thereof. A fitting insertion hole 94 is formed.

The temporary retaining portions (male) 92 are short rectangular columnar portions protruding from the vicinity of the boundaries with the semi-cylindrical body 12 at both ends of the hinge 16 in the longitudinal direction, and the tips thereof are temporary retaining portions (as described above). It is adapted to be fitted into the fitting insertion hole 94 of the (female) 90.

The second movement preventing portion 84 has a plurality of protruding portions 96 that are provided at the center of the inner surface of the hinge 16 so as to protrude in the longitudinal direction at predetermined intervals. When the insulating cover 10 moves with respect to the electric wire L and the electric wire L and the charging portion J in the insulating cover 10 relatively come close to the hinge 16 undesirably, the tips of the protruding portions 96 are connected to each other. It is possible to prevent the contact with the charging portion J or the charging portion J and further approach the hinge 16.

(Procedure for using the insulating cover 10)
Next, a procedure for attaching the insulating cover 10 according to the present embodiment to the charging portion J of the electric wire L will be briefly described. As the charging section J to which the insulating cover 10 is attached, there are two parts such as (1) a compression sleeve A for making one electric wire L into two, and (2) a portion where the insulating coating H is stripped from one electric wire L. The case will be described.

(Case 1: Compression sleeve A)
As shown in FIG. 3, the half sleeve 12 is arranged on the electric wire L along the longitudinal direction of the half sleeve 12 such that the compression sleeve A, which is the charging portion J, abuts the charge holding portion 50. At this time, the compression sleeve A is larger than the recess 58 formed in the charging portion holding portion 50, and the half sleeve 14 is simply placed by contacting the compression sleeve A with the charging portion holding portion 50. Since it is difficult to assemble (cover) the half-cylindrical body 12, the half of the charging section holding section 50 on the side close to the movement preventing section 52 is pressed and deformed as shown in the figure.

By pressing and deforming the half of the charging unit holding unit 50 on the side closer to the movement preventing unit 52, the movement preventing unit 52 and the half of the charging unit holding unit 50 on the side farther from the movement preventing unit 52 compress. The sleeve A can be sandwiched, and the insulating cover 10 can be prevented from undesirably moving with respect to the electric wire L or the compression sleeve A in the direction orthogonal to the longitudinal direction of the half cylinder 12.

Of course, as shown in FIG. 4, the compression sleeve A may be arranged so as to press and deform the half of the charging portion holding portion 50 on the far side of the movement preventing portion 52. In this case, the compression sleeve A and the electric wire L approach the inner end edges of the half cylinders 12 and 14, but since the hinge 16 exists on this side, the insulating cover 10 may come off from the compression sleeve A. The sex is low and there is no particular problem. On the contrary, even if the compression sleeve A tries to move relatively toward the outer end edges of the half-cylindrical bodies 12 and 14, the half of the charging portion holding portion 50 on the side closer to the movement preventing portion 52 and the movement preventing portion 52. However, since the compression sleeve A prevents the compression sleeve A from moving relatively toward the outer edge, the possibility that the insulating cover 10 is disengaged from the compression sleeve A can be further reduced.

Returning to FIG. 3, after the insulating cover 10 is arranged at a predetermined position of the compression sleeve A and the electric wire L, the half cylinder body 14 folded back by the hinge 16 is combined with the half cylinder body 12 to form the two half cylinder bodies 12, 14. The engaging portions 24 provided are used to hold the combined state. This completes the attachment of the insulating cover 10 to the charging portion J of the electric wire L.

Actually, the electric wire L to which the insulating cover 10 is attached is almost imaginary, and the worker attaches the insulating cover 10 to the charging section J at a high place by using a tool. For this reason, the semi-cylindrical bodies 12 and 14 are held in advance in a state of being brought close to each other by using the temporary retaining portion 82, and thereafter, the insulating cover 10 is raised to a high place by using a tool so that the charging portion J is It is preferable to combine the two semi-cylindrical bodies 12 and 14 with the engaging portion 24 so as to sandwich them.

In addition, in a state in which the insulating cover 10 is completely attached to the compression sleeve A, as shown in FIG. 5, the compression sleeve A has a pair of longitudinal movement preventing portions 54 provided on the half cylinders 12 and 14. It is located between. Accordingly, even if the insulating cover 10 tries to move in the longitudinal direction of the insulating cover 10 with respect to the compression sleeve A or the electric wire L, the longitudinal movement prevention portion 54 can be prevented from hitting the compression sleeve A and further moving.

In addition, when the length of the compression sleeve A is longer than the distance between the opposing sides 74 of the rectangular flat plate 72 in the second longitudinal movement preventing portion 70 provided on the other half cylinder 14, the rectangular flat plate 72 is used. As shown in the figure, is pressed by the surface of the compression sleeve A and rotated to a position along the inner surface of the half cylinder 14.

When the length of the compression sleeve A is shorter than that shown in FIG. 5, as shown in FIG. 6, the compression sleeve A is arranged closer to the center than the longitudinal movement prevention portion 54. 2 It fits between the opposing sides 74 of the rectangular flat plate 72 in the longitudinal movement prevention part 70. As a result, the relative movable range of the compression sleeve A in the longitudinal direction of the insulating cover 10 can be made narrower due to the distance between the opposing sides 74, and the insulating cover 10 is undesirably attached to the electric wire L. The range of movement can be more limited.

(Case 2: A part where the insulation coating H is stripped from one wire L)
As shown in FIG. 7, the half-cylindrical body 12 is moved in the longitudinal direction of the half-cylindrical body 12 so that the portion (charging portion J) where the insulating coating H is stripped from the electric wire L contacts the charging-portion holding portion 50. Along the wire L. In particular, the insulating coating H is positioned so that the recess 58 of the charging portion holding portion 50 fits into the portion (=charging portion J) where the core wire S is exposed by being stripped off.

As a result, when the insulating cover 10 moves with respect to the electric wire L, the widthwise end of the charging unit holding portion 50 contacts the end of the insulating coating H, so that the insulating cover 10 is undesired in the longitudinal direction of the electric wire L. Can be prevented from moving to.

Even when the insulating cover 10 moves in the direction orthogonal to the longitudinal direction of the electric wire L, the core wire S of the electric wire L is fitted in the recess 58 of the charging unit holding unit 50, and thus insulation is achieved. Also in the direction orthogonal to the longitudinal direction of the cover 10, the insulating cover 10 can be prevented from undesirably moving with respect to the electric wire L.

After disposing the semi-cylindrical body 12 at a predetermined position with respect to the electric wire L, the semi-cylindrical body 14 folded back by the hinge 16 is combined with the semi-cylindrical body 12, and the engaging portions provided on both the semi-cylindrical bodies 12, 14. 24 is used to hold the combined state. This completes the attachment of the insulating cover 10 to the charging section J.

Note that the use of the temporary retaining section 82 is the same as the content described in Case 1 above, and thus the description in Case 1 is cited.

When the insulating cover 10 is completely attached to the electric wire L, as shown in FIGS. 8 and 9, the insulating coating H is peeled off to expose the core wire S, and the recess 58 of the charging portion holding portion 50 is exposed. And the opposite side 74 of the rectangular flat plate 72 in the second longitudinal movement prevention portion 70 provided in the half cylinder 14 presses the surface of the electric wire L toward the charging portion holding portion 50. Therefore, the possibility that the recess 58 of the charging unit holding unit 50 will come off from the exposed portion of the core wire S is reduced.

(Characteristics of insulating cover 10)
According to the above-described insulating cover 10 according to the present embodiment, the charging unit holding unit 50 that holds the charging unit J of the electric wire L inside the half cylinders 12 and 14 is pushed by the charging unit J and can be deformed. Therefore, it is possible to provide the insulating cover 10 that can be widely applied even when the form of the charging portion J is different.

Further, since the charging portion J of the charging portion holding portion 50 is disposed in contact with the charging portion J, a recess 58 is formed in which the core wire S exposed by peeling off the insulating coating H of one electric wire L is fitted. The core wire S of the electric wire L is prevented from being fitted into the recess 58 of the charging part holding portion 50, and the insulating cover 10 is prevented from undesirably moving with respect to the electric wire L in the longitudinal direction thereof or in the direction orthogonal to the longitudinal direction. it can.

Further, since the movement preventing portion 52 is provided between the charging portion holding portion 50 and the outer end edge of the inside of the half cylinders 12 and 14 in the direction orthogonal to the longitudinal direction of the half cylinders 12 and 14, the electric wire. It is possible to prevent the semi-cylindrical bodies 12 and 14 from moving relative to L in the direction orthogonal to the longitudinal direction thereof.

Further, since the longitudinal movement prevention portion 54 is provided between the charging portion holding portion 50 and the longitudinal ends of the semi-cylindrical bodies 12 and 14 inside the semi-cylindrical bodies 12 and 14, with respect to the electric wire L. It is possible to prevent the half cylinders 12 and 14 from moving in the longitudinal direction.

Further, since the second longitudinal movement preventing portion 70 is provided between the longitudinal end of the half tubular body 12 inside the other half tubular body 14 and the position corresponding to the charging portion holding portion 50, It is possible to prevent the semi-cylindrical body 14 from moving in the longitudinal direction with respect to the electric wire L.

Further, the second longitudinal movement prevention portion 70 is made to act on the electric wire at a position closer to the charging portion holding portion 50 than the longitudinal movement prevention portion 54 in the longitudinal direction of the half cylinders 12 and 14. Thus, even when the length of the compression sleeve A is short, the movable range of the compression sleeve A in the longitudinal direction of the insulating cover 10 can be made narrower, and the range in which the insulating cover 10 moves undesirably with respect to the electric wire L. Can be more limited.

(Modification 1)
In the above-described embodiment, the charging unit holding unit 50 has both ends of the strip-shaped member connected to the central portion of the semi-cylindrical body 12, and the recess 58 is formed in the central portion where the electric wire L is placed in contact. As a result, the cross-sectional shape was formed into a substantially "M" shape. However, the shape of the charging unit holding unit 50 is not limited to this, and for example, as shown in FIG. 10A, both ends of the belt-shaped member are connected to the inner surface of the semi-cylindrical body 12, and the recess 58 is formed. It may be formed in a trapezoidal shape. Further, as shown in FIG. 10B, only one end of the belt-shaped member may be attached to the inner surface of the half cylinder 12. Further, as shown in FIG. 10C, a bent portion 102 may be provided on the leg portion 100 of the charging unit holding unit 50 so that the charging unit holding unit 50 is easily deformed. Furthermore, as shown in FIG. 10D, the charging unit holding unit 50 may be formed of a flexible solid material instead of being formed by bending a belt-shaped member.

(Modification 2)
In the above-described embodiment, the movement preventing portion 52 is formed on both the half cylinders 12 and 14, but the movement preventing portion 52 may be formed on at least one of the half cylinders 12 and 14.

(Modification 3)
In the above-described embodiment, the longitudinal movement prevention portion 54 is formed on both the half cylinders 12 and 14, but the longitudinal movement prevention portion 54 is formed on at least one of the half cylinders 12 and 14. Just do it.

The embodiments disclosed this time are to be considered as illustrative in all points and not restrictive. The scope of the present invention is shown not by the above description but by the claims, and is intended to include meanings equivalent to the claims and all modifications within the scope.

DESCRIPTION OF SYMBOLS 10... Insulating cover, 12... (One side) half cylinder, 14... (Other) half cylinder, 16... Hinge 20... Main body part, 22... Shutter part, 24... Engagement part 50... Charging part holding part, 52... Movement prevention portion, 54... Longitudinal movement prevention portion, 56... Recessed portion, 58... Recessed portion 60... Rainwater intrusion prevention tongue piece, 62... Sloping surface, 63... Belt-shaped flat surface, 64... Engaging tool (female) , 66... Fasteners (male), 70... Second longitudinal direction movement preventing portion, 72... Rectangular flat plate, 74... Opposing side 80... Hinge shutter portion, 82... Temporary retaining portion, 84... Second movement preventing portion, 86... Rainwater intrusion preventing tongue piece, 88... Partition section, 90... Temporary retaining section (female), 92... Temporary retaining section (male), 94... Fitting insertion hole, 96... Projection section 100... (Charging section holding section) 50) leg portion, 102... bent portion L... coated electric wire (or "electric wire"), S... core wire, H... insulation coating, J... charging portion, A... compression sleeve

Claims (6)

An insulating cover comprising a pair of semi-cylindrical bodies that become a tubular body that covers the outside of one or more electric wires when combined with each other,
An insulating cover, in which a charging portion of the electric wire is disposed in contact with a center portion inside one of the half cylinders, and a charging portion holding portion which is deformable by being pressed by the charging portion is formed. The recess in which the core wire exposed by peeling off the insulating coating of one of the electric wires is fitted is formed at a position of the charging portion holding portion where the charging portion abuts. Insulation cover. Between the outer edge of the inside of the half cylinder in the direction orthogonal to the longitudinal direction of the half cylinder and the charging part holding portion, the half cylinder is orthogonal to the longitudinal direction with respect to the electric wire. The insulating cover according to claim 1, further comprising a movement preventing portion that prevents movement in a direction. Between the longitudinal edge of the half-cylindrical body inside the half-cylindrical body and the charging section holding part, a long side for preventing the half-cylindrical body from moving in the longitudinal direction with respect to the electric wire. The insulating cover according to any one of claims 1 to 3, further comprising a directional movement preventing portion. The half cylinder moves in the longitudinal direction with respect to the electric wire between the end of the other half cylinder in the longitudinal direction of the half cylinder and a position corresponding to the charging part holding portion. The insulating cover according to any one of claims 1 to 4, further comprising a second longitudinal movement prevention portion that prevents the movement. The half cylinder moves in the longitudinal direction with respect to the electric wire between the end of the other half cylinder in the longitudinal direction of the half cylinder and a position corresponding to the charging part holding portion. A second longitudinal movement prevention portion is provided to prevent
The second longitudinal movement prevention portion acts on the electric wire at a position closer to the charging portion holding portion than the longitudinal movement prevention portion in the longitudinal direction of the semi-cylindrical body. The insulating cover according to 4.

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