JP2018007526A - Wire clamp cover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wire clamp cover which facilitates engagement at an indirect hot wire tool when storing an anchor clamp.SOLUTION: The wire clamp cover made of insulating material accommodates an anchor clamp 1 on the inner surface. When a first cover portion 20A and a second cover portion 20B connected to be capable of opening and closing by hinges are closed, an overhead electric wire introduction cylindrical portion 50 formed on one end side, an insulator connecting cylindrical portion 40 formed on the other end side, and an edge side wire introduction cylindrical portion 30 disposed above the insulator connecting cylindrical portion are formed. An engaging portion 60 engageable with an indirect hot wire tool provided on the opposing edge of the first cover portion 20A and the second cover portion 20B is provided between the edge side electric wire introduction cylindrical portion and the insulator connecting cylindrical portion, and has an extending portion extending along an angle of 30 degrees or more and 90 degrees or less with respect to the opposing surface.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an electric wire clamp cover.

  When the high-voltage electric wire is installed on the utility pole, it is attached to a retaining clamp. The retaining clamp is connected to a tension insulator and attached to the utility pole via the tension insulator. That is, the high-voltage electric wire is installed on the utility pole by the retaining clamp and the tension insulator.

  This retaining clamp is housed in an insulating clamp cover when it is used to construct an electric wire. A clamp cover is a pair of cover connected so that opening and closing is possible by hinges, for example, as shown in patent documents 1 and patent documents 2. When the retaining clamp is housed in the clamp cover, the retaining clamp is put inside with the clamp cover opened, and then the clamp cover is closed to house the retaining clamp inside. And a pair of engaging part provided in the clamp cover is engaged, for example using an indirect hot wire tool etc., and it fixes in the state which closed the clamp cover. Further, the clamp cover is formed with a hole for introducing the overhead electric wire on the side portion and a hole for leading the edge side electric wire on the opposite side portion. The clamp cover is also formed with a hole for connecting the holding clamp to the external tension insulator on the same side as the hole from which the edge-side electric wire is led out. Although a pair of engaging part is provided in multiple places, it is also provided between the hole which introduces this electric wire, and the hole for connecting a retention clamp to a tension insulator.

Japanese Patent No. 2946329 Japanese Patent No. 3714738

  The engaging part at the lower end of the clamp cover can be easily engaged even with an indirect hot wire tool, but the engagement between the hole leading out the edge-side electric wire and the hole connecting the tension clamp to the tension insulator. The joint is in a position close to the tension insulator and the edge-side electric wire. Therefore, when engaging the engaging part at this position, the tension insulator becomes an obstacle, making it difficult to bring the indirect hot tool close to the engaging part. It becomes difficult to join.

  In order to solve the above-mentioned problem, the present invention differs from the opposing surface of the clamp cover in the engaging portion between the hole for leading the edge-side electric wire and the hole for connecting the retaining clamp to the tension insulator. An object of the present invention is to provide an electric wire clamp cover that can be easily engaged with an indirect hot wire tool by providing an extending portion extending in a direction so that the indirect hot wire tool is brought closer to the side of the clamp cover.

  In order to solve the above-described problems and achieve the object, an electric wire clamp cover according to the present disclosure is an electric wire clamp cover that is made of an insulator and accommodates a retaining clamp on an inner surface, and is connected to be opened and closed by a hinge. When the first cover part and the second cover part, and the first cover part and the second cover part, which are opposed to each other and are open and capable of accommodating the retaining clamp therein, are closed, the first cover part and the second cover part are closed. The overhead wire introduction opening formed on one side end side of the first cover portion and the second cover portion, and the first cover portion and the second cover when the first cover portion and the second cover portion are closed. An insulator connection opening formed on the other side end side of the part, and an edge side electric wire introduction opening formed above the insulator connection opening when the first cover part and the second cover part are closed , The first cover part and the second cover And an engaging portion that can be engaged with an indirect hot wire tool provided on the opposite edge of the wire portion, between the edge-side wire introduction opening and the insulator connection opening. The provided engaging portion has an extending portion that extends along an angle of 30 degrees or more and 90 degrees or less with respect to the facing surface. In patent document 1 and 2, since the opposing surface of a clamp cover and the engaging part are the same direction, since the indirect hot wire tool was inserted and engaged in the narrow space of an insulator and an edge side electric wire, workability | operativity was bad. On the other hand, the engaging part between the edge side electric wire introduction opening part and insulator connection opening part which concerns on this indication has an extension part. The extending part extends along an angle of 30 degrees or more and 90 degrees or less with respect to the facing surface. Therefore, this wire clamp cover can be operated with an indirect hot wire tool from the side of the wire clamp cover, which is unlikely to obstruct the insulator or the edge side wire, and the engagement portion can be engaged relatively easily. it can.

  In the wire clamp cover, it is preferable that the extending portion extends along an angle of 45 degrees or more and 85 degrees or less with respect to the facing surface.

  In the electric wire clamp cover, the engaging portion provided between the edge-side electric wire introduction opening and the insulator connection opening is a protrusion protruding in a direction perpendicular to the facing surface on the first cover portion side. And having a recess on the side of the second cover portion, and the recess and the convex portion are located within the recess when the first cover portion and the second cover portion are closed. Preferably they are inserted and engaged with each other.

  In the electric wire clamp cover, the engaging portion provided between the edge-side electric wire introduction opening and the insulator connection opening protrudes in a direction perpendicular to the facing surface toward the first cover. In addition, it has an engagement pinching portion that is divided into two, and has an engagement insertion portion that extends in the direction along the facing surface on the second cover portion side, and the engagement pinching portion and the engagement insertion portion When the first cover portion and the second cover portion are closed, it is preferable that the engagement insertion portion is sandwiched between the two portions of the engagement sandwiching portion and the portions are engaged with each other.

  In the wire clamp cover, the engagement portion provided between the edge-side wire introduction opening and the insulator connection opening has an engagement recess on the first cover portion side, and the second cover An engaging convex portion as the extending portion on the part side, and the engaging concave portion and the engaging convex portion of the engaging concave portion when the first cover portion and the second cover portion are closed. It is preferable that the convex portions of the engaging convex portions are inserted into the concave portions and engaged with each other.

  The electric wire clamp cover includes a spherical divided body and a spherical edge-side electric wire introduction cylinder provided in the first cover portion and the second cover portion, and the divided body introduces the edge-side electric wire introduction. A spherical shape that forms the engagement portion provided between the opening and the insulator connection opening, the edge-side electric wire introduction opening, and a connection opening that opens on the opposite side of the edge-side electric wire introduction opening. The edge-side electric wire introduction tube portion is connected to the first cover portion and the second cover portion by covering the spherical edge-side electric wire introduction tube portion so as to sandwich the spherical edge-side electric wire introduction tube portion.

  According to the present invention, when the retaining clamp is accommodated in the clamp cover, the clamp is provided in the engaging portion between the hole for leading the edge-side electric wire and the hole for connecting the retaining clamp to the tension insulator. By providing an extending portion that extends in a direction different from the facing surface of the cover, the indirect live tool can be brought closer from the side surface of the clamp cover, and therefore the engagement by the indirect live tool can be facilitated. .

FIG. 1 is a diagram illustrating a state in which an electric wire is installed on a utility pole using a retaining clamp. FIG. 2 is an inner surface development view of the clamp cover according to the first embodiment. FIG. 3 is a front view of the clamp cover according to the first embodiment. FIG. 4 is a side view of the clamp cover according to the first embodiment. FIG. 5 is an enlarged inner surface development view of the edge-side electric wire introduction tube portion of the first embodiment. FIG. 6 is a diagram for explaining a method of engaging the engaging convex portion and the engaging concave portion in FIG. 4. FIG. 7 is a side view of the clamp cover according to the second embodiment. FIG. 8 is an enlarged inner surface development view of the electric wire introduction tube portion of the second embodiment. FIG. 9 is a side view of the clamp cover according to the third embodiment. FIG. 10 is an enlarged inner surface development view of the electric wire introduction tube portion of the third embodiment. FIG. 11A is a diagram for explaining a method of engaging the engaging convex portion and the engaging concave portion in FIG. 9. FIG. 11B is a diagram for explaining a method of engaging the engaging convex portion and the engaging concave portion in FIG. 9. FIG. 12 is an inner surface development view of the clamp cover according to the fourth embodiment. FIG. 13 is an example of an inner surface development view of a clamp cover according to a comparative example. FIG. 14 is an example of a front view of a clamp cover according to a comparative example. FIG. 15 is a developed view of the inner surface of the clamp cover according to the second embodiment. FIG. 16 is a front view of a clamp cover according to the second embodiment. FIG. 17 is an inner surface development view of the clamp cover according to the third embodiment. FIG. 18 is a front view of a clamp cover according to the third embodiment. FIG. 19 is a front view of a clamp cover according to the fourth embodiment. FIG. 20 is a front view in which the edge line of the clamp cover according to the fourth embodiment is upward. FIG. 21 is a diagram for explaining a method of engaging the divided body and the main body according to the fourth embodiment.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In addition, this invention is not limited by this embodiment, Moreover, when there are two or more embodiments, what comprises a combination of each Example is also included.

(First embodiment)
FIG. 1 is a diagram illustrating a state in which an electric wire is installed on a utility pole using a retaining clamp. As shown in FIG. 1, the electric wire A is an overhead electric wire and is retained by the retaining clamp 1 housed in the clamp cover 10. The retaining clamp 1 is connected to an insulator B which is a tension insulator. The insulator B is further connected to a structure D provided on the utility pole C. In this way, the electric wire A is installed on the utility pole.

  FIG. 2 is an inner surface development view of the clamp cover according to the first embodiment. FIG. 3 is a front view of the clamp cover according to the first embodiment. FIG. 2 is a front view showing a state where the clamp cover 10 according to the first embodiment is opened, and FIG. 3 is a front view showing the case where the clamp cover 10 is closed. 2 and 3 show a state in which the retaining clamp 1 is housed inside the clamp cover 10.

  As shown in FIG. 2, the retaining clamp 1 includes a main body portion 2, a wedge portion 3, an electric wire fixing portion 4, and an insulator connecting portion 5. The main body 2 is slidably connected to the triangular wedge 3. The main body 2 stores a portion where the coating of the electric wire A is peeled off and an end of the wedge portion 3.

  The wedge part 3 has a groove in which a portion where the coating of the electric wire A is peeled is housed. An electric wire fixing portion 4 is attached to the wedge portion 3, and the electric wire A is fixed (clamped) by tightening a portion where the covering of the electric wire A is peeled off by the electric wire fixing portion 4. The insulator connecting portion 5 is a ring-shaped member connected to the main body portion 2. The lever connecting portion 5 is attached to the lever shaft Ba of the lever B by a shaft provided inside the ring. The retaining clamp 1 retains the electric wire A in this way and is connected to the insulator B.

  The clamp cover 10 is a cover having an insulating property that covers the retaining clamp 1 configured as described above and accommodates the retaining clamp 1 therein. As shown in FIG. 2, the clamp cover 10 includes a first main body portion 12 </ b> A, a second main body portion 12 </ b> B, and a hinge portion 14. The first main body portion 12A and the second main body portion 12B are a pair of covers that are connected via a hinge portion 14 so as to be opened and closed. The clamp cover 10 is made of an elastically deformable insulator.

  As shown in FIG. 2, the first main body portion 12A includes a first cover portion 20A, an edge-side electric wire introduction tube portion 30A, an insulator connection tube portion 40A, an overhead wire introduction tube portion 50A, and an engagement convex portion 60A. Two bottom engaging convex portions 70 </ b> A and a gripping portion 80 are provided. The second body portion 12B includes a second cover portion 20B, an edge-side electric wire introduction tube portion 30B, an insulator connection tube portion 40B, an overhead wire introduction tube portion 50B, an engagement recess 60B, and two bottom engagement recesses 70B. And a gripping portion 80.

  20 A of 1st cover parts are the covers which 22A of opposing surfaces which are surfaces open, and can accommodate the clamping clamp 1 inside. The facing surface 22A has a triangular shape formed by an upper edge portion 23UA, a lower edge portion 23BA, and a side edge portion 23SA around the opening. The 2nd cover part 20B is a cover which the accommodation surface 22B which is a surface opens, and can accommodate the clamping clamp 1 inside. The opposing surface 22B has a triangular shape formed by an upper edge portion 23UB, a lower edge portion 23BB, and a side edge portion 23SB around the opening.

  The first cover portion 20A and the second cover portion 20B have hinge portions 14 attached to the upper edge portions 23UA and 23UB, and are connected through the hinge portions 14 so as to be opened and closed. That is, the first cover part 20A and the second cover part 20B constitute a pair of covers. When the first cover portion 20A and the second cover portion 20B are closed, the facing surfaces 22A and 22B face each other to form the facing surface 22, thereby forming an integral cover portion 20. More specifically, when the first cover portion 20A and the second cover portion 20B are closed, the upper edge portion 23UA and the upper edge portion 23UB are in contact with each other, and the lower edge portion 23BA and the lower edge portion 23BB are in contact with each other. Then, the side edge 23SA and the side edge 23SB come into contact with each other.

  The edge side electric wire introducing cylinder part 30A is provided on the side part (side end) of the facing surface 22A of the first cover part 20A. More specifically, the edge-side electric wire introduction cylinder portion 30A is provided at the position of the apex of the triangle formed by the upper edge portion 23UA and the side edge portion 23SA. The edge side electric wire introduction cylinder part 30A has a semi-cylindrical shape. The edge side electric wire introduction cylinder part 30B is provided on the side part (side end) of the facing surface 22B of the second cover part 20B. More specifically, the edge side electric wire introduction cylinder part 30B is provided at the position of the apex of the triangle formed by the upper edge part 23UB and the side edge part 23SB. The edge side electric wire introduction cylinder part 30B has a semi-cylinder shape. The edge-side electric wire introduction tube portion 30A and the edge-side electric wire introduction tube portion 30B are opposed to each other to form a tubular edge-side electric wire introduction tube portion 30 when they are closed. The edge side electric wire introduction cylinder part 30 forms the edge side electric wire introduction opening part 32 shown in FIG. The edge side electric wire introduction opening 32 is a hole through which the electric wire A can be introduced into the cover portion 20.

  The insulator connecting tube portion 40A is provided at the position of the apex of the triangle formed by the side portion (side end) of the facing surface 22A of the first cover portion 20A, here, the side edge portion 23SA and the lower edge portion 23BA. In other words, the insulator connecting tube portion 40A is provided on a side portion (side end) of the facing surface 22A and adjacent to the edge-side wire introduction tube portion 30A along the facing surface 22A. It is provided below the portion 30A, that is, on the lower edge portion 23BA side. The insulator connecting tube portion 40A has a half tube shape. The insulator connecting cylinder portion 40B is provided at the position of the apex of the triangle formed by the side portion (side end) of the facing surface 22B of the second cover portion 20B, here, the side edge portion 23SB and the lower edge portion 23BB. In other words, the insulator connecting tube portion 40B is a side portion (side end) of the facing surface 22B, and is provided adjacent to the edge-side wire introduction tube portion 30B along the facing surface 22B. It is provided below 30B, that is, on the lower edge portion 23BB side. The insulator connecting cylinder portion 40B has a semi-cylindrical shape.

  When the insulator connecting cylinder 40A and the insulator connecting cylinder 40B are closed, they face each other to form a cylindrical insulator connecting cylinder 40. The insulator connection cylinder part 40 forms the insulator connection opening part 42 shown in FIG. The lever connection opening 42 is a hole for connecting the outer lever B of the clamp cover 10 to the inner clamping clamp 1. An insulator shaft Ba is introduced into the insulator connection opening 42, and the insulator shaft Ba and the insulator connection portion 5 are connected inside the insulator connection tube portion 40. When the insulator B is connected to the holding clamp 1, the insulator B is located outside the clamp cover 10 and covers the insulator connecting cylinder portion 40.

  The overhead electric wire introduction cylinder part 50A is provided on the side part (side end) opposite to the edge-side electric wire introduction cylinder part 30A of the facing surface 22A of the first cover part 20A. More specifically, the overhead electric wire introducing cylinder portion 50A is provided at the position of the apex of the triangle formed by the upper edge portion 23UA and the lower edge portion 23BA. The overhead electric wire introducing cylinder portion 50A has a semi-cylindrical shape. The overhead electric wire introduction tube portion 50B is provided on the side portion (side end) opposite to the edge-side wire introduction tube portion 30B of the facing surface 22B of the second cover portion 20B. More specifically, the overhead electric wire introducing cylinder part 50B is provided at the position of the apex of the triangle formed by the upper edge part 23UB and the lower edge part 23BB. The overhead electric wire introducing cylinder portion 50B has a semi-cylindrical shape. The overhead wire introduction tube portion 50A and the overhead wire introduction tube portion 50B face each other when they are closed to form a tubular overhead wire introduction tube portion 50. The overhead wire introduction tube portion 50 forms the overhead wire introduction opening 52 shown in FIG. The overhead electric wire introduction opening 52 is a hole through which the electric wire A can be introduced from the inside of the cover portion 20 to the outside.

  In other words, the overhead wire introduction opening 52 is an opening formed on one side end side of the first cover part 20A and the second cover part 20B when the first cover part 20A and the second cover part 20B are closed. It can be said that. The insulator connection opening 42 is an opening formed on the other side end side of the first cover part 20A and the second cover part 20B when the first cover part 20A and the second cover part 20B are closed. It can be said. The edge-side electric wire introduction opening 32 is the other side end side of the first cover portion 20A and the second cover portion 20B when the first cover portion 20A and the second cover portion 20B are closed, and the insulator connection It can be said that the opening is formed above the opening 42. Furthermore, the edge-side electric wire introduction opening 32 is an opening provided obliquely above the first cover part 20A and the second cover part 20B when the first cover part 20A and the second cover part 20B are closed. It can be said that there is.

  The engaging convex portion 60A is provided on the outer periphery of the edge-side electric wire introducing cylinder portion 30A on the insulator connecting cylinder portion 40A side. In other words, the engaging convex portion 60A is provided at the side edge 23SA between the edge side electric wire introduction opening 32 (edge side electric wire introduction cylinder 30A) and the insulator connection opening 42 (insulator connection cylinder 40A). The engaging recess 60B is provided on the outer periphery of the edge-side electric wire introduction cylinder part 30B on the insulator connection cylinder part 40B side. In other words, the engagement recess 60B is provided in the side edge 23SB between the edge-side electric wire introduction opening 32 (edge-side electric wire introduction cylinder 30B) and the insulator connection opening 42 (insulator connection cylinder 40B). It can be said that the engagement convex portion 60 </ b> A is the engagement portion 60 provided between the edge-side electric wire introduction opening 32 and the insulator connection opening 42. Similarly, it can be said that the engagement recess 60 </ b> A is the engagement portion 60 provided between the edge-side electric wire introduction opening 32 and the insulator connection opening 42. In other words, it can be said that the engaging part 60 has the engaging convex part 60A on the first cover part 20A side and the engaging concave part 60B on the second cover part 20B side. The shapes of the engaging convex portion 60A and the engaging concave portion 60B will be described later.

  The bottom engaging convex portion 70A is provided at the lower portion of the facing surface 22A of the first cover portion 20A, that is, the lower edge portion 23BA. One bottom engaging convex portion 70A is provided on the outer peripheral portion of the insulator connecting tube portion 40A, and the other one is provided on the outer peripheral portion of the overhead wire introducing tube portion 50A. The bottom engaging convex portion 70A is a plate-like member on which a convex portion is formed. The bottom engaging recess 70B is provided in the lower portion of the facing surface 22B of the second cover portion 20B, that is, the lower edge portion 23BB. One bottom engaging recess 70B is provided on the outer peripheral portion of the insulator connecting tube portion 40B, and the other is provided on the outer peripheral portion of the overhead wire introducing tube portion 50B. The bottom engaging recess 70B is a plate-like member in which a recess (hole) is formed.

  The bottom engaging convex portion 70A and the bottom engaging concave portion 70B face each other when the clamp cover 10 is closed to form the bottom engaging portion 70. The operator uses, for example, a tool such as an indirect hot tool to engage the convex portion of the bottom engaging convex portion 70A with the concave portion of the bottom engaging concave portion 70B, and thereby the first cover portion 20A and the second cover portion 20B. And fix in a closed state.

  The gripping portion 80A is a plate-like member provided at the lower portion of the facing surface 22A of the first cover portion 20A, that is, the lower edge portion 23BA. The grip portion 80B is a plate-like member provided on the lower portion of the facing surface 22B of the second cover portion 20B, that is, the lower edge portion 23BB. When the operator opens and closes the lamp cover 10, the operator grips the gripping portion 80A or the gripping portion 80B with a tool and moves the first main body portion 12A or the second main body portion 12B.

  Next, the shapes of the engaging convex portion 60A and the engaging concave portion 60B will be described. FIG. 4 is a side view of the clamp cover according to the first embodiment. FIG. 5 is an expanded inner surface development of the edge-side electric wire introduction tube portion of the first embodiment. The left side of FIG. 4 is a diagram of the open state in which the clamp cover 10 is opened, and the right side is a diagram of the closed state in which the clamp cover 10 is closed. FIG. 5 is a view of the edge-side electric wire introduction cylinder portion 30 as viewed from the front, in other words, a view of the edge-side electric wire introduction cylinder portion 30, the engagement convex portion 60 </ b> A, and the engagement concave portion 60 </ b> B from the arrow K in FIG. It is. The left side of FIG. 5 is an open state, and the right side is a closed state.

  As shown in FIGS. 4 and 5, the engaging convex portion 60A includes a plate portion 62A and a convex portion 64A. The plate portion 62A is a plate-like member. As shown in FIG. 5, the plate portion 62A has a terminal connection portion 62A1 connected to the edge-side electric wire introduction cylinder portion 30A, and extends from the connection portion 62A1 to the distal end portion 62A2. The plate portion 62A extends along the direction Y1 from the connecting portion 62A1 toward the distal end portion 62A2. The direction Y1 is a direction along a surface parallel to the facing surface 22A of the first cover portion 20A. More specifically, the direction Y1 is along the surface parallel to the facing surface 22A and the hinge portion 14 of the edge-side electric wire introduction opening 32. This is the direction from the outer periphery on the side toward the central axis of the edge-side electric wire introduction opening 32. That is, the surface of the plate portion 62A is along a plane parallel to the facing surface 22A. As shown in FIG. 5, the convex portion 64A is a projection provided on the surface of the plate portion 62A.

  As shown in FIGS. 4 and 5, the engaging recess 60B includes a plate portion 62B and a recess 64B. The plate portion 62B is a plate-like member. As shown in FIG. 5, the plate part 62B has a terminal connection part 62B1 connected to the edge-side electric wire introduction cylinder part 30B, and extends from the connection part 62B1 to the tip part 62B2. The plate part 62B extends along the direction Y2 from the connection part 62B1 toward the tip part 62B2. The direction Y2 is a direction along a surface parallel to the facing surface 22B of the second cover portion 20B. More specifically, the direction Y2 is along the surface parallel to the facing surface 22B and the hinge portion 14 of the edge-side electric wire introduction opening 32. This is the direction from the outer periphery on the side toward the central axis of the edge-side electric wire introduction opening 32. That is, the surface of the plate portion 62B is along a plane parallel to the facing surface 22B. Further, as shown in FIG. 5, the recess 64B is a hole that opens on the surface of the plate portion 62A and penetrates the plate portion 62A.

  An extending portion 66 is provided in the engaging recess 60B. The extending portion 66 has a proximal end portion 67 at the distal end fixed to the distal end portion 62B2 of the engaging recess 60B, and extends from the proximal end portion 67 to the distal end portion 68. The extending portion 66 extends from the base end portion 67 toward the distal end portion 68 along the direction X1 (extending direction). The direction X1 is a direction away from a plane that overlaps the facing surface 22B of the second cover portion 20B. In other words, the extending portion 66 moves away from the surface overlapping the facing surface 22 </ b> B as it goes toward the distal end portion 68. In the present embodiment, the angle θ1 between the direction X1 and the facing surface 22B is 30 degrees or greater and 90 degrees or less, and more preferably 45 degrees or greater and 85 degrees or less. That is, the extending portion 66 extends toward the tip portion 68 along an angle of 30 degrees or more and 90 degrees or less with respect to the facing surface 22B, and an angle of 45 degrees or more and 85 degrees or less with respect to the facing surface 22B. It is more preferable to extend along. Further, the distance L1 between the flat surface overlapping the facing surface 22B and the front end portion 68 is, for example, 1 cm or more and 2.5 cm or less. Moreover, it is preferable that the straight line along the direction X1 (extending direction) exists in the position of a twist with respect to the central axis AX1 of the insulator connection opening part 42 which the insulator connection cylinder part 40 forms. The position of twist refers to the positional relationship between two straight lines when the two straight lines are not parallel and do not intersect. However, the direction X1 is arbitrary as long as the direction is away from the plane that overlaps the facing surface 22B of the second cover portion 20B.

  As shown in FIG. 5, when the clamp cover 10 is closed, the inner surface 63A of the plate portion 62A and the outer surface 63B of the plate portion 62B face each other. Further, the extending portion 66 extends in the direction X1 toward the tip portion 68. The operator grasps the extending portion 66 with a tool and moves the extending portion 66 toward the plate portion 62A, thereby inserting (engaging) the convex portion 64A into the concave portion 64B. Thereby, the engaging convex portion 60A and the engaging concave portion 60B are engaged to form the engaging portion 60. In this case, the surface 63A and the surface 63B are in close contact with each other to form the close contact surface 63. The contact surface 63 is a surface parallel to the facing surface 22. In other words, the engagement convex portion 60A and the engagement concave portion 60B are in close contact with each other at the close contact surface 63 parallel to the facing surface 22 when the clamp cover 10 is closed and engaged. In addition, as for the clamp cover 10, the convex part 64A may be provided in the engagement recessed part 60B, and the recessed part 64B may be provided in the engagement convex part 60A. Moreover, as long as the engaging convex part 60A and the engaging recessed part 60B are engaged with each other, the engaging convex part 64A and the concave part 64B may not be engaged.

  Next, a method for housing the retaining clamp 1 attached to the electric wire A at a high place in the clamp cover 10 will be described. When the retaining clamp 1 is housed in the clamp cover 10, first, the operator holds the clamp cover 10 in an open state with a tool such as an indirect hot wire tool, and holds the clamp cover 10 at the electric wire A at a high place. It is put on the retaining clamp 1 attached to. Thereafter, the operator sandwiches the bottom engaging convex portion 70A and the bottom engaging concave portion 70B with a tool, engages the convex portion of the bottom engaging concave portion 70B with the hole of the bottom engaging convex portion 70A, and The portion 70A is engaged with the bottom engaging recess 70B. Thereafter, the operator holds the first cover portion 20A with one tool so as not to move, uses the other tool to hold the extension portion 66, and moves the extension portion 66 to the first cover portion 20A side. The protrusion 64A is engaged with the recess 64B, and the engagement protrusion 60A and the engagement recess 60B are engaged.

  Here, the bottom engaging convex portion 70A and the bottom engaging concave portion 70B are located on the lower side in the vertical direction of the retaining clamp 1 attached to the electric wire A. That is, the bottom engaging convex portion 70A and the bottom engaging concave portion 70B have no obstacle on the lower side in the vertical direction. Therefore, the operator can sandwich the bottom engaging convex portion 70A and the bottom engaging concave portion 70B by bringing the tool closer from below.

  FIG. 6 is a diagram for explaining a method of engaging the engaging convex portion and the engaging concave portion in FIG. 4. On the other hand, as shown in FIG. 6, the engaging convex portion 60A and the engaging concave portion 60B are adjacent to the insulator connecting cylinder portion 40 (insulator connecting opening 42) along the opposing surfaces 22A and 22B. In other words, the insulator connecting tube portion 40 (insulator connecting opening 42) is positioned below the engaging convex portion 60A and the engaging concave portion 60B in the vertical direction. As described above, the insulator B is located outside the clamp cover 10 and covers the insulator connecting tube portion 40. Therefore, the insulator B exists on the lower side in the vertical direction between the engaging convex portion 60A and the engaging concave portion 60B.

  As shown in FIG. 6, the operator may bring the indirect live tool E closer from the direction S1 which is the direction from the lower side in the vertical direction in order to engage the engaging convex portion 60A and the engaging concave portion 60B. Since the insulator B becomes an obstacle, the indirect live tool E cannot be brought close to the engaging convex portion 60A and the engaging concave portion 60B. However, in the first embodiment, when the clamp cover 10 is closed, the extending portion 66 extends toward the distal end portion 68 along an angle of 30 degrees or more and 90 degrees or less with respect to the facing surface 22. (Leave away from the surface overlapping the opposing surface 22). Therefore, the operator can bring the indirect hot wire tool E closer to the extending portion 66 from the lateral direction S2 between the engaging convex portion 60A and the engaging concave portion 60B. Since direction S2 is a horizontal direction, insulator B does not become an obstacle. Therefore, the operator can easily grip the extending portion 66. The extending portion 66 is attached to the engaging recess 60B. Therefore, the operator can easily engage the engaging concave portion 60B with the engaging convex portion 60A by gripping and moving the extending portion 66.

  As described above, the clamp cover 10 according to the first embodiment is an electric wire clamp cover that is made of an insulator, is attached to a structure via the insulator B, and houses the retaining clamp 1 that retains the electric wire A. is there. The clamp cover 10 includes a first cover portion 20A and a second cover portion 20B, an overhead wire introduction opening 52, an insulator connection opening 42, an edge-side wire introduction opening 32, and an engagement portion 60. The first cover portion 20A and the second cover portion 20B are connected to each other by a hinge portion 14 so as to be opened and closed. Opposing surfaces 22A and 22B facing each other are opened, and the retaining clamp 1 can be accommodated therein. The overhead wire introduction opening 52 is formed on one side end side of the first cover part 20A and the second cover part 20B when the first cover part 20A and the second cover part 20B are closed. The insulator connection opening 42 is formed on the other side end side of the first cover part 20A and the second cover part 20B when the first cover part 20A and the second cover part 20B are closed. The edge-side electric wire introduction opening 32 is formed above the insulator connection opening 42 when the first cover part 20A and the second cover part 20B are closed. The engaging part 60 is provided on the opposite edge of the first cover part 20A and the second cover part 20B, and can be engaged with an indirect hot wire tool. The engagement portion 60 (here, the engagement recess 60B) provided between the edge-side electric wire introduction opening 32 and the insulator connection opening 42 is 30 degrees or more with respect to the facing surface 22 (here, the facing surface 22B). It has the extension part 66 extended along the angle of 90 degrees or less.

  In the clamp cover 10 according to the first embodiment, the extending portion 66 attached to the engaging portion 60 extends along an angle of 30 degrees or more and 90 degrees or less with respect to the facing surface 22. The operator can hold the extending portion 66 and engage the engaging portion 60 (engage the engaging convex portion 60A and the engaging concave portion 60B). Moreover, since the extension part 66 extends along an angle of 30 degrees or more and 90 degrees or less with respect to the facing surface 22, the operator can easily grasp the extension part 66 while avoiding the insulator B. it can. Therefore, the operator can engage the clamp cover 10 at a high place with an indirect hot wire tool relatively easily, and can also remove it relatively easily. In other words, the clamp cover 10 is between a hole (edge-side electric wire introduction opening 32) for leading out the edge-side electric wire and a hole (insulator connection opening 42) for connecting the holding clamp 1 to the insulator B. By providing the engaging portion 60 with an extending portion 66 that extends in a direction different from the facing surface 22 of the clamp cover 10, the indirect live tool can be brought closer to the side surface of the clamp cover 10. Engagement with a line tool can be facilitated.

  Moreover, it is preferable that the extending part 66 extends along an angle of 45 degrees or more and 85 degrees or less with respect to the facing surface 22. If this clamp cover 10 is used, it will suppress more suitably that the insulator B becomes an obstruction, and an operator can engage the clamp cover 10 more easily with an indirect hot wire tool.

  In addition, the engaging portion 60 provided between the edge-side electric wire introduction opening 32 and the insulator connection opening 42 is on the first cover portion 20A side in the direction orthogonal to the engaging convex portion 60A, that is, the facing surface 22A. It has a protruding part 64A, and has an engaging recess 60B, that is, a recess 64B on the second cover part 20B side. The convex portion 64A and the concave portion 64B are engaged with each other by inserting the convex portion 64A into the concave portion 64B when the first cover portion 20A and the second cover portion 20B are closed. According to the clamp cover 10, the operator can relatively easily engage the clamp cover 10 at a high place with an indirect hot wire tool.

(Second Embodiment)
Next, a second embodiment will be described. The clamp cover 10a according to the second embodiment is different from the first embodiment in the shape of the engaging portion 60a. In the second embodiment, description of portions having the same configuration as that of the first embodiment is omitted.

  FIG. 7 is a side view of the clamp cover according to the second embodiment. FIG. 8 is an enlarged inner surface development view of the edge side electric wire introduction tube portion of the second embodiment. The left side of FIG. 7 is a view of the open state in which the clamp cover 10a is opened, and the right side is a view of the closed state in which the clamp cover 10a is closed. FIG. 8 is a view of the edge-side electric wire introduction cylinder portion 30 as viewed from the front. The left side of FIG. 8 is an open state, and the right side is a closed state.

  As shown in FIG.7 and FIG.8, the engaging part 60a has the engagement clamping part 60Aa in the 1st cover part 20A side, and has the engagement insertion part 60Ba in the 2nd cover part 20B side. The engagement clamping portion 60Aa has a plate portion 62Aa. The plate portion 62Aa is a plate-like member. As shown in FIG. 8, the plate portion 62Aa has a terminal connection portion 62A1a connected to the edge-side electric wire introduction cylinder portion 30A, and extends from the connection portion 62A1a to the tip portion 62A2a. The plate portion 62Aa extends along the direction Y3 from the connection portion 62A1a toward the distal end portion 62A2a. The direction Y3 is a direction from the outer surface 24A that is the surface opposite to the facing surface 22A of the first cover portion 20Aa toward the facing surface 22A, that is, a direction that is orthogonal to the facing surface 22A. The tip end portion 62A2a protrudes toward the direction Y3 from the facing surface 22A.

  Further, as shown in FIG. 7, the plate portion 62Aa is provided with a groove portion 64Aa along the direction Y3. The groove portion 64Aa divides the tip end portion 62A2a of the plate portion 62Aa into two parts. In the groove portion 64Aa, the width of the bottom portion 64A1a on the connection portion 62A1a side is larger than the width on the tip end portion 62A2a side.

  As shown in FIGS. 7 and 8, the engagement insertion portion 60Ba has a plate portion 62Ba. The plate portion 62Ba is a plate-like member. As shown in FIG. 8, in the plate portion 62Ba, the terminal connection portion 62B1a is connected to the edge-side electric wire introduction cylinder portion 30B, and extends from the connection portion 62B1a to the tip portion 62B2a. The plate portion 62Ba extends along the direction Y4 from the connecting portion 62B1a toward the distal end portion 62B2a. The direction Y4 is a direction along a plane parallel to the facing surface 22B of the second cover portion 20B. The width of the plate portion 62Ba is smaller than the width of the bottom portion 64A1a of the groove portion 64Aa and larger than the width of the groove portion 64Aa on the tip end portion 62A2a side. In addition, the engaging insertion portion 60Ba is provided with an extending portion 66, similar to the engaging concave portion 60B of the first embodiment.

  When the clamp cover 10a is closed, the plate portion 62Ba faces the groove portion 64Aa. Further, the extending portion 66 extends toward the tip portion 68 along the direction X1, that is, an angle of 30 degrees or more and 90 degrees or less with respect to the facing surface 22 (away from the surface overlapping the facing surface 22). The operator grasps the extension portion 66 with a tool and moves the extension portion 66 toward the plate portion 62Aa, thereby inserting the plate portion 62Ba between the groove portions 64Aa, that is, the plate portion 62Aa. ) Thereby, engagement clamping part 60Aa and engagement insertion part 60Ba are engaged. When engaged, the plate portion 62Ba is elastically deformed by receiving a force from the tool through the extending portion 66, and thus can pass through the tip portion 62A2a side of the groove portion 64Aa having a small width. The plate part 62Ba returns to its original shape at the position of the bottom part 64A1a of the groove part 64Aa having a large width. Since the plate portion 62Ba cannot pass through the end portion 62A2a side of the groove portion 64Aa unless it is deformed by receiving a force, the plate portion 62Ba is positioned at the bottom portion 64A1a of the groove portion 64Aa. Engaged. In other words, the engagement holding portion 60Aa and the engagement insertion portion 60Ba are engaged when the plate portion 62Ba is held between the two portions of the plate portion 62Aa.

  The clamp cover 10a according to the second embodiment has an extending portion 66 that extends along the angle of 30 degrees or more and 90 degrees or less with respect to the facing surface 22 as in the first embodiment. Therefore, the operator can easily engage the engaging concave portion 60B with the engaging convex portion 60A by gripping and moving the extending portion 66.

  Further, the engaging portion 60a provided between the edge-side electric wire introduction opening 32 and the insulator connection opening 42 protrudes in the direction perpendicular to the facing surface 22A toward the first cover portion 20A and splits into two. It has a sandwiching part 60Aa, and has an engagement insertion part 60Ba extending in the direction along the facing surface 22B on the second cover part 20B side. When the first cover portion 20A and the second cover portion 20B are closed, the engagement sandwiching portion 60Ba is sandwiched between the engagement sandwiching portion 60Aa and the engagement sandwiching portion 60Ba. And are engaged with each other. According to the clamp cover 10a, the operator can relatively easily engage the clamp cover 10a at a high place with an indirect hot wire tool.

(Third embodiment)
Next, a third embodiment will be described. The clamp cover 10b according to the third embodiment is different from the first embodiment in the shape of the engaging portion 60b. In the third embodiment, description of portions having the same configuration as that of the first embodiment is omitted.

  FIG. 9 is a side view of the clamp cover according to the third embodiment. FIG. 10 is an enlarged inner surface development view of the electric wire introduction tube portion of the third embodiment. The left side of FIG. 9 is a diagram of the open state in which the clamp cover 10b is opened, and the right side is a diagram of the closed state in which the clamp cover 10b is closed. FIG. 10 is a view of the electric wire introducing cylinder portion 30 as viewed from the front. The left side of FIG. 10 is an open state, and the right side is a closed state.

  As shown in FIGS. 9 and 10, the engaging part 60b has an engaging concave part 60Ab on the first cover part 20A side and an engaging convex part 60Bb on the second cover part 20B side. The engaging recess 60Ab has a base 61Ab, a plate 62Ab, and a recess 64Ab. The base 61Ab is a member connected to the edge-side electric wire introduction cylinder 30A. The plate portion 62Ab is a plate-like member. The plate portion 62Ab has a terminal connection portion 62A1b connected to the base portion 61Ab, and extends from the connection portion 62A1b to the tip end portion 62A2b. The plate portion 62Ab extends in the direction X2 (extending direction) from the connecting portion 62A1b toward the distal end portion 62A2b. The direction X2 is a direction away from the plane overlapping the facing surface 22A. That is, the plate portion 62Ab moves away from the surface overlapping the facing surface 22A as it goes toward the tip end portion 62A2b. In the present embodiment, the angle θ2 between the direction X2 and the facing surface 22A is not less than 30 degrees and not more than 90 degrees, and more preferably not less than 45 degrees and not more than 85 degrees. That is, the plate portion 62Ab extends along the angle of 30 degrees or more and 90 degrees or less with respect to the facing surface 22A toward the distal end portion 62A2b, and is at an angle of 45 degrees or more and 85 degrees or less with respect to the facing surface 22A. More preferably, it extends along. The recess 64Ab is a hole that opens in the surface of the plate portion 62A, and penetrates the plate portion 62Ab.

  Engagement convex part 60Bb has base 61Bb, board part 62Bb, and convex part 64Bb. The base 61Bb is a member connected to the edge-side electric wire introduction cylinder 30B. The plate portion 62Bb is a plate-like member. The plate portion 62Bb has a connection portion 62B1b as a base end portion fixed to the base portion 61Bb, and extends from the connection portion 62B1b to the tip end portion 62B2b. The plate portion 62Bb extends in the direction X3 from the connection portion 62B1b toward the distal end portion 62B2b. The direction X3 is a direction away from the surface overlapping the facing surface 22B (extending direction). That is, the plate portion 62Bb moves away from the surface overlapping the facing surface 22B as it goes toward the tip end portion 62B2b. In the present embodiment, the angle θ3 between the direction X3 and the facing surface 22B is 30 degrees or more and 90 degrees or less, and more preferably 45 degrees or more and 85 degrees or less. That is, the plate portion 62Bb extends along the angle of 30 degrees or more and 90 degrees or less with respect to the facing surface 22B toward the tip end portion 62B2b, and is at an angle of 45 degrees or more and 85 degrees or less with respect to the facing surface 22B. More preferably, it extends along. The convex portion 64Bb is a protrusion that is provided on the surface of the plate portion 62Bb and extends in a direction orthogonal to the facing surface 22B. It can also be said that the engaging protrusion 60Bb is an extending portion extending in the direction X3 from the connecting portion 62B1b serving as the base end portion toward the distal end portion 62B2b.

  As shown in FIG. 10, when the clamp cover 10b is closed, the direction X2 and the direction X3 overlap and become the same direction, and the inner surface 63Ab of the plate portion 62Ab and the outer surface 63Bb of the plate portion 62Bb face each other. Then, by the operator's operation of the tool, the plate portion 62Ab and the plate portion 62Bb are sandwiched, and the convex portion 64Bb is engaged (inserted) into the concave portion 64Ab. Thereby, engagement recessed part 60Ab and engagement convex part 60Bb are engaged and fixed. In this case, the surface 63Ab and the surface 63Bb are in close contact with each other to form the close contact surface 63b. The contact surface 63b is a surface parallel to the direction X2 and the direction X3. In other words, the engagement concave portion 60Ab and the engagement convex portion 60Bb are in close contact with each other at the close contact surface 63b parallel to the direction X3 when the clamp cover 10b is closed and engaged.

  When the clamp cover 10b is closed, the engagement recess 60Ab and the engagement protrusion 60Bb extend in the direction X2 (direction X3) toward the tip ends 62A2b and 62B2b. In other words, when the clamp cover 10b is closed, the engagement concave portion 60Ab and the engagement convex portion 60Bb are along an angle of 30 degrees or more and 90 degrees or less with respect to the facing surface 22 toward the tip portions 62A2b and 62B2b. It extends (away from the surface overlapping the facing surface 22). As shown in FIG. 10, the distance L2 between the tip 62B2b and the plane overlapping the facing surface 22 is preferably 1 cm or more and 4 cm or less.

  FIG. 11A is a diagram for explaining a method of engaging the engaging convex portion and the engaging concave portion in FIG. 9. FIG. 11B is a diagram for explaining a method of engaging the engaging convex portion and the engaging concave portion in FIG. 9. As shown in FIG. 11A, when the operator brings the indirect live tool E close to the direction S1 from the lower side in the vertical direction in order to sandwich the engagement recess 60Ab and the engagement protrusion 60Bb, the insulator B Becomes an obstacle, and the engaging recess 60Ab and the engaging protrusion 60Bb cannot be gripped. However, in the third embodiment, when the clamp cover 10b is closed, the engagement recess 60Ab and the engagement protrusion 60Bb are 30 degrees or more and 90 degrees with respect to the facing surface 22 toward the tip ends 62A2b and 62B2b. It extends along the following angle (away from the surface overlapping the facing surface 22). Therefore, the operator can bring the indirect live tool E close to the engagement recess 60Ab and the engagement projection 60Bb from the lateral direction S2 between the engagement recess 60Ab and the engagement projection 60Bb. Since direction S2 is a horizontal direction, insulator B does not become an obstacle. Therefore, the operator can easily bring the indirect hot tool to the engaging concave portion 60Ab and the engaging convex portion 60Bb, and relatively easily engage with the indirect hot tool as shown in FIG. 11B. Is possible.

  The clamp cover 10b according to the third embodiment has an engaging convex portion 60Bb as an extending portion. Therefore, the operator can easily engage the engaging convex portion 60Bb with the engaging concave portion 60Ab by grasping and moving and holding the engaging convex portion 60Bb and the engaging concave portion 60Ab.

  Further, the engaging portion 60b provided between the edge-side electric wire introduction opening 32 and the insulator connection opening 42 has an engaging recess 60Ab on the first cover portion 20A side and extends to the second cover portion 20B side. It has an engaging convex part 60Bb as the existing part. When the first cover part 20A and the second cover part 20B are closed, the convex part 64Bb of the engaging convex part 60Bb is inserted into the concave part 64Ab of the engaging concave part 60Ab when the engaging concave part 60Ab and the engaging convex part 60Bb are closed. Are engaged with each other. Therefore, the operator can bring the indirect hot tool from the direction avoiding the insulator B to the engagement recess 60Ab and the engagement protrusion 60Bb. Therefore, the operator can engage the clamp cover 10b more easily with the indirect hot wire tool.

(Fourth embodiment)
Next, a fourth embodiment will be described. The clamp cover 10c according to the fourth embodiment is different from the first embodiment in that a part thereof is detachable. In the fourth embodiment, description of portions having the same configuration as that of the first embodiment is omitted.

  FIG. 12 is an inner surface development view of the clamp cover according to the fourth embodiment. As shown in FIG. 12, the clamp cover 10c according to the fourth embodiment includes a first main body portion 12Ac, a second main body portion 12Bc, a hinge portion 14c, a first divided body 16Ac, and a second divided body 16Bc. And a hinge portion 18c. The first main body portion 12Ac includes a first cover portion 20A, an insulator connecting tube portion 40A, an overhead wire introduction tube portion 50A, two bottom engaging convex portions 70A, and a grip portion 80. The second body portion 12Bc includes a second cover portion 20B, an insulator connection tube portion 40B, an overhead wire introduction tube portion 50B, two bottom engagement recesses 70B, and a grip portion 80. The first main body portion 12Ac and the second main body portion 12Bc are connected to each other so as to be opened and closed by a hinge portion 14c, and form an integral main body portion 12c. The first cover portion 20A is provided with a spherical edge side electric wire introducing cylinder portion 31A on the side portion (side end) of the facing surface 22A of the first cover portion 20A. More specifically, the spherical edge side electric wire introducing cylinder portion 31A is provided at the position of the apex of the triangle formed by the upper edge portion 23UA and the side edge portion 23SA. Similarly, the second cover portion 20B is provided with a spherical edge side electric wire introducing cylinder portion 31A on the side portion (side end) of the facing surface 22B of the second cover portion 20B. More specifically, the spherical edge side electric wire introducing cylinder part 31B is provided at the position of the apex of the triangle formed by the upper edge part 23UB and the side edge part 23SB. The spherical edge-side electric wire introduction tube portions 31A and 31B form a spherical edge-side electric wire introduction tube portion 31 having a hollow spherical shape facing each other when the first cover portion 20A and the second cover portion 20B are closed. . As for spherical edge side electric wire introduction cylinder part 31, the location of the tip which attaches division object 16c mentioned below is opened. The spherical edge side electric wire introducing cylinder portion 31 is provided with a groove for holding the tip of the divided body 16c at the end portion on the opposite side to the position of the tip to which the divided body 16c is attached.

  1st division body 16Ac has spherical edge side electric wire introduction cylinder part 30A and engagement recessed part 60A. 2nd division body 16Bc has spherical edge side electric wire introduction cylinder part 30B, and engagement convex part 60B. The first divided body 16Ac and the second divided body 16Bc are connected to each other by a hinge portion 18c so as to be opened and closed, and form an integral divided body 16c. The divided body 16c has a connection opening 33 opened at a position opposite to the edge-side electric wire introduction opening 32, and can be attached inside the opening of the main body 12c. The divided body 16 c includes an engagement portion 60 provided between the edge-side wire introduction opening portion 32 and the insulator connection opening portion 42, and a spherical edge-side wire introduction tube portion 30 constituting the edge-side wire introduction opening portion 32. It can be said.

  When the retaining clamp 1 is stored using the clamp cover 10c according to the fourth embodiment, first, the operator covers the retaining clamp 1 with the main body portion 12c opened using an indirect hot wire tool, The first cover portion 20A and the second cover portion 20B are closed by engaging the bottom portion engaging convex portion 70A and the bottom portion engaging concave portion 70B. Then, an operator covers the spherical edge side electric wire introduction cylinder part 31 of the main-body part 12c so that it may pinch | interpose with the division body 16c using an indirect hot wire tool. The spherical edge-side electric wire introduction cylinder part 30 of the divided body 16c has a connection opening 33 serving as a latching part that can be detachably fitted, making it difficult to separate from the spherical edge-side electric wire introduction cylinder part 31 of the main body part 12c. Can be linked. Thereby, the engagement of the retaining clamp 1 with the clamp cover 10c is completed.

  In the clamp cover 10c according to the fourth embodiment, the edge-side electric wire introduction tube portion 30 and the engaging portion 60 constituting the edge-side electric wire introduction opening 32 constitute an integral divided body 16, and the divided body 16c is The first cover part 20A and the second cover part 20B are detachable. In other words, the clamp cover 10c includes a spherical divided body 16c and a spherical edge side electric wire introduction cylinder portion 31 provided in the first cover portion 20A and the second cover portion 20B. The spherical divided body 16 c has an engaging portion 60 and a spherical edge-side electric wire introducing cylinder portion 30. The spherical edge-side electric wire introduction cylinder 30 forms an edge-side electric wire introduction opening 32 and a connection opening 33 that opens on the opposite side of the edge-side electric wire introduction opening 32. The spherical divided body 16c is connected to the first cover part 20A and the second cover part 20B by covering the spherical edge side electric wire introduction cylinder part 31 so as to sandwich it. The spherical divided body 16c serves as a locking portion that detachably fits the spherical edge side electric wire introduction cylinder portion 31 avoiding the insulator B by simultaneously covering the electric wire A and the spherical edge side electric wire introduction cylinder portion 31 by itself. The connection which is difficult to be separated from each other can be easily performed. Therefore, the split body 16c can be easily attached and detached in the direction in which the edge-side electric wire is introduced.

(Comparison with comparative example)
Next, comparison of attachment between the clamp cover 10x of the existing form according to the comparative example and the clamp cover according to the first to fourth embodiments will be described with reference to the drawings.

  FIG. 13 is an example of an inner surface development view of a clamp cover according to a comparative example. FIG. 14 is an example of a front view of a clamp cover according to a comparative example. As shown in FIGS. 13 and 14, in the clamp cover 10x according to the comparative example, the engaging portion 60x formed by the engaging convex portion 60Ax and the engaging concave portion 60Bx extends along the facing surface. Since the clamp cover 10x is small and light in weight, the edge side electric wire introduction portion is short, and the engagement recess 60Bx is close to a position where it comes into contact with the tension insulator. Therefore, in the clamp cover 10x according to the comparative example, the insulator B becomes an obstacle, and it is difficult to engage the engaging portion 60x with an indirect hot wire tool.

  FIG. 15 is a developed view of the inner surface of the clamp cover according to the second embodiment. FIG. 16 is a front view of a clamp cover according to the second embodiment. FIG. 17 is an inner surface development view of the clamp cover according to the third embodiment. FIG. 18 is a front view of a clamp cover according to the third embodiment. FIG. 19 is a front view of a clamp cover according to the fourth embodiment. As shown in FIGS. 12, 13, and 15 to 19, the clamp covers according to the first to fourth embodiments extend along an angle of 30 degrees or more and 90 degrees or less with respect to the facing surface. Since the extending portion is provided, the interference of the insulator B can be suppressed and the engaging portion 60 can be easily engaged with the indirect hot wire tool.

  FIG. 20 is a front view in which the edge line of the clamp cover according to the fourth embodiment is upward. As shown in FIGS. 19 and 20, the clamp cover 10 c according to the fourth embodiment may have an edge line in an upward direction or a downward direction. The upward direction of the edge line indicates that the extending direction of the divided body 16 is inclined upward with respect to the extending direction of the spherical edge side electric wire introducing cylinder portion 31 as shown in FIG. Moreover, the edge line is downward, as shown in FIG. 19, in which the extending direction of the divided body 16 is inclined downward with respect to the extending direction of the spherical edge-side electric wire introducing cylinder portion 31. .

  FIG. 21 is a diagram for explaining a method of engaging the divided body and the main body according to the fourth embodiment. As shown in FIG. 21, when the retaining clamp 1 is housed using the clamp cover 10c according to the fourth embodiment, first, the retaining clamp 1 is covered with the opened main body portion 12c, and the main body portion 12c is then covered. close up. Then, an operator covers the spherical edge side electric wire introduction cylinder part 31 of the main-body part 12c so that it may pinch | interpose with the division body 16c using an indirect hot wire tool. The spherical edge-side electric wire introduction cylinder part 30 of the divided body 16c has a connection opening 33 serving as a latching part that can be detachably fitted, making it difficult to separate from the spherical edge-side electric wire introduction cylinder part 31 of the main body part 12c. Can be linked. Thereby, the engagement of the retaining clamp 1 with the clamp cover 10c is completed.

  As mentioned above, although embodiment of this invention was described, this invention is not limited by the content of these embodiment. In addition, the above-described constituent elements include those that can be easily assumed by those skilled in the art, those that are substantially the same, and those in a so-called equivalent range. Furthermore, the above-described components can be appropriately combined. Furthermore, various omissions, substitutions, or changes of the components can be made without departing from the spirit of the above-described embodiment.

DESCRIPTION OF SYMBOLS 1 Holding clamp 10 Clamp cover 12A 1st main-body part 12B 2nd main-body part 14 Hinge part 16, 16A, 16B Splitting body 20A 1st cover part 20B 2nd cover part 22, 22A, 22B Opposite surface 30, 30A, 30B Edge side Electric wire introduction cylinder part 32 Edge side electric wire introduction opening part 40, 40A, 40B Insulator connection cylinder part 50, 50A, 50B Overhead electric wire introduction cylinder part 52 Overhead electric wire introduction opening part 60 Engaging part 60A Engaging convex part 60B Engaging concave part 66 Extension A part A electric wire B Isogo

Claims (6)

An electric wire clamp cover that is made of an insulating material and houses a holding clamp on the inner surface,
A first cover part and a second cover part, which are connected to each other by a hinge so as to be opened and closed, and facing surfaces facing each other are open, and the retaining clamp can be accommodated therein;
When the first cover part and the second cover part are closed, an overhead electric wire introduction opening formed on one side end side of the first cover part and the second cover part,
An insulator connection opening formed on the other side end of the first cover and the second cover when the first cover and the second cover are closed;
When the first cover part and the second cover part are closed, an edge side electric wire introduction opening part formed above the insulator connection opening part,
In the electric wire clamp cover provided with an engaging portion that can be engaged with an indirect hot-wire tool provided at the opposing edges of the first cover portion and the second cover portion,
The engaging portion provided between the edge-side electric wire introduction opening and the insulator connection opening has an extending portion that extends along an angle of 30 degrees or more and 90 degrees or less with respect to the facing surface. , Clamp cover for electric wire.   The electric wire clamp cover according to claim 1, wherein the extending portion extends along an angle of 45 degrees to 85 degrees with respect to the facing surface. The engaging portion provided between the edge side electric wire introduction opening and the insulator connection opening has a convex portion protruding in a direction perpendicular to the facing surface on the first cover portion side, 2 Has a recess on the cover side,
The said recessed part and the said convex part insert the said convex part in the said recessed part, and are mutually engaged when the said 1st cover part and 2nd cover part are closed. The clamp cover for electric wires described. The engaging portion provided between the edge-side electric wire introduction opening and the insulator connection opening protrudes in the direction perpendicular to the facing surface on the first cover portion side and divides into two. An engagement insertion portion extending in the direction along the facing surface on the second cover portion side,
When the first cover portion and the second cover portion are closed, the engagement sandwiching portion and the engagement insertion portion are sandwiched between the two portions of the engagement sandwiching portion. The clamp cover for electric wires according to claim 1 or 2, which are engaged with each other. The engaging portion provided between the edge-side electric wire introduction opening and the insulator connection opening has an engaging recess on the first cover portion side, and the extending portion on the second cover portion side. Having an engaging projection as
When the first cover part and the second cover part are closed, the engaging concave part and the engaging convex part are inserted into the concave part of the engaging concave part. The clamp cover for electric wires according to claim 1 or 2, which is engaged. The electric wire clamp cover has a spherical divided body, and a spherical edge side electric wire introduction tube portion provided in the first cover portion and the second cover portion,
The divided body is
The engagement portion provided between the edge-side electric wire introduction opening and the insulator connection opening;
A spherical edge-side electric wire introduction tube portion that forms the edge-side electric wire introduction opening portion and a connection opening portion that opens on the opposite side of the edge-side electric wire introduction opening portion, and sandwiches the spherical edge-side electric wire introduction tube portion The electric wire clamp cover according to any one of claims 1 to 5, wherein the electric wire clamp cover is connected to the first cover portion and the second cover portion by covering in such a manner.

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