JP2018074675A - Sleeve cover retainer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sleeve cover retainer capable of stably retaining a sleeve cover along with an electric wire while causing no damage on a surface even in a remote control operation.SOLUTION: A sleeve cover retainer 1 includes a cover holding section 2 for holding a sleeve cover, and an electric wire holding section 10 for holding an electric wire. A pair of holding pieces 2a, 2b constituting the cover holding section 2 includes a flange section 6 for holding the sleeve cover at one side and an arm 8 for performing an opening/closing operation at the other side via a pivotal support section 4. In the same way, the electric wire holding section 10 includes a flange section 14 for holding the electric wire at one side and an arm 16 for performing an opening/closing operation at the other side via a pivotal support section 12. The cover holding section 2 and the electric wire holding section 10 are integrally constituted by a common rotation shaft 18 for axially supporting the pivotal support sections 4, 12 and an operation section 20 for integrally movably coupling the arms 8, 16 with prescribed intervals. The operation section 20 includes an adapter 22 capable of being coupled with a remote operation tool.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a sleeve cover holder that temporarily holds a sleeve cover for performing insulation treatment around the sleeve after the cut electric wire is connected using a sleeve.

  Electric wires cut at the time of installation of the bypass cable in the uninterruptible construction are connected via a sleeve at the end of the construction.

  Various forms of the sleeve used here are known. Many of them have a cylindrical part that can accommodate the conductor parts from which the coating of the end portion of the electric wire is removed, and the accommodated conductor part is fixed by being crimped to the cylindrical part. It has become.

  However, it is difficult to completely cover the conductor portion with only the sleeve, and the conductor portion is exposed in the gap between the sleeve and the covering end portion, so that the insulation is not sufficient. Therefore, a sleeve cover is used to cover the exposed conductor portion together with the sleeve.

  FIG. 6 shows a conventional sleeve cover 104. In the sleeve cover 104 shown here, the main body 105 is formed of a cylindrical member formed of a resin material having an insulating property. As this material, for example, insulative flame retardant polyethylene, flame retardant polypropylene and the like are suitable.

  End tubes 106 are attached to both ends of the main body 105. Unlike the main body 105, the end tube 106 is formed of a cylindrical rubber member that is excellent in stretchability in addition to insulation. Inside the end tube 106, a core member 107 wound in a cylindrical shape is disposed. The core member 107 is formed to have an inner diameter larger than that of the main body portion 105. As a result, the entrance of the end tube 106 is held in an expanded and expanded state.

  The core member 107 is formed in a cylindrical shape by a core ribbon 107a wound spirally. The core ribbon 107a is arranged with one end extended to the outside, and by pulling out this one end, the spiral can be unwound from the inside and the core member 107 can be extracted. When the core member 107 is pulled out, the end tube 106 held in an expanded and expanded state contracts and comes into close contact with the coated end portion 102 of the electric wire 100, and the exposed conductor portion is covered to restore insulation. To do.

  The sleeve cover 104 configured as shown in FIG. 6 is described in Patent Document 1.

JP2015-70725A

In order to attach the sleeve cover 104 as described above by remote operation, a remote operation tool for holding the sleeve cover 104 and the electric wire 100 is required. A remote control tool for removing the core member 107 is also required. Therefore, since at least three remote control bars are used, two or more workers are required.

  By the way, in the above-mentioned conventional example, regarding the holding of the sleeve cover 104 and the electric wire 100, although the work object is different, the operation is the same type of holding work. Therefore, if the holding of the sleeve cover 104 and the electric wire 100 can be collectively operated with a single remote control rod, the work load can be greatly reduced. If the number of remote control bars is changed from three to two, the sleeve cover 104 can be attached even if there is only one operator.

  However, since the sleeve cover 104 and the electric wire 100 have greatly different outer diameters, it is difficult to increase or decrease the force when both are held at the same time. Also, if the surface of the sleeve cover 104 is damaged when sandwiched, the durability is lowered, and in some cases, it may cause insulation failure.

  Therefore, when sandwiching the sleeve cover 104, it is necessary to perform a careful operation. In particular, since remote sensing is difficult to convey a sense to the hand, a certain level of skill is required even if the work is simply a pinching operation.

  Therefore, an object of the present invention is to provide a sleeve cover holder that can stably hold a sleeve cover together with an electric wire without causing damage to the surface even in remote operation.

  In order to achieve the above object, a sleeve cover holder according to the present invention is a sleeve cover holder for temporarily holding a sleeve cover that covers a sleeve subjected to electric wire connection processing, and is provided via a first pivot portion. A first jaw part for holding the sleeve cover on one side, a Yatco-type cover holding part having a first arm part for opening / closing operation on the other side, and the first jaw on one side via a second pivot part A second jaw part that is smaller than the part and sandwiches the electric wire, a Yatco-type electric wire holding part having a second arm part for opening and closing on the other side, and the first and second pivoting parts at a predetermined interval. It is characterized by comprising a spacer supported by being vacated, and an operation part that connects the first and second arm parts so as to be integrally movable.

  In the sleeve cover holder according to the present invention, in addition to the above configuration, the first jaw portion of the cover holding portion has a curved region with an inner edge formed in a concave shape on the first pivot portion side. It is characterized by being.

  In addition to the above-described configuration, the sleeve cover holder according to the present invention may be configured such that the first jaw portion of the cover holding portion has the curved region in the vicinity of the first pivot portion. A protruding portion that protrudes inward from the inner edge is formed.

  As described above, according to the present invention, only by operating the operation unit, the cover holding unit and the wire holding unit arranged at a predetermined interval by the spacer are opened and closed simultaneously. As a result, the electric wire and the sleeve cover are arranged so as to straddle, and when the sleeve cover is clamped by the cover holding portion by the operation of the operation portion, the electric wire is held by the electric wire holding portion at the same time. The holding state can be stabilized.

Further, according to the present invention, in addition to the above effects, the inner side of the first jaw portion of the curved region formed in a concave shape can be pressed against the sleeve cover. Thereby, when closing the 1st jaw part of a cover clamping part in the state pressed against the sleeve cover, it can prevent that a sleeve cover is pinched in the sheared state by the inner edge near the 1st pivot part.

  According to the present invention, in addition to the above effect, when the cover holding portion is pressed against the sleeve cover, there is a gap between the curved portion of the first jaw portion and the amount of the protruding portion protruding inward. It is formed. Thereby, the pinching to the 1st jaw part can be prevented reliably.

1 is an overall perspective view of a sleeve cover holder according to an embodiment of the present invention. It is a front view of the sleeve cover holder of FIG. It is the side view seen from the cover clamping part side of the sleeve cover holder of FIG. It is a figure explaining the use condition of the sleeve cover holder of FIG. The jaw part of a cover clamping part is shown, (a) is the state open | released so that a sleeve cover and an electric wire could be accommodated, (b) is a figure explaining the state which clamped the sleeve cover and an electric wire. It is a figure which shows the conventional sleeve cover.

  Hereinafter, a sleeve cover holder according to an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is an overall perspective view of a sleeve cover holder 1 according to an embodiment of the present invention. The sleeve cover holder 1 has two large and small clamping structures.

  Of these, the larger clamping structure is the cover clamping part 2 for clamping the sleeve cover. The cover clamping part 2 is a Yatco-type clamping structure comprising a pair of clamping pieces 2a, 2b, and a jaw part 6 (first jaw) for clamping an object on one side via a pivotal part 4 (first pivotal part). Part) and an arm 8 (first arm part) for opening and closing operation on the other side.

  The smaller clamping structure is the electric wire clamping part 10 for clamping an electric wire. Similar to the cover clamping unit 2, the wire clamping unit 10 is also a Yatco-type clamping structure composed of a pair of clamping pieces 10a and 10b, and clamps the electric wire on one side via the pivotal support part 12 (second pivotal support part). The jaw 14 (second jaw) has an arm 16 (second arm) for opening / closing operation on the other side. The cover holding unit 2 and the electric wire holding unit 10 are integrally configured with a common rotating shaft 18 and an operation unit 20 at a predetermined interval.

  The common rotation shaft 18 is a common shaft that rotatably supports the pivot support portions 4 and 12 of the cover holding portion 2 and the wire holding portion 10, and is spaced from the cover holding portion 2 and the wire holding portion 10. It is also a spacer to support. In the present embodiment, the common rotating shaft 18 is configured as a common rotating shaft of the two pivot structures 4 and 12 of the sandwiching structure, but the pivot section 4 of the cover sandwiching section 2 and the wire sandwiching section 10, If it is the structure which supports in the vicinity of 12 and keeps a predetermined space | interval, it does not need to correspond with the rotation center of the pivot part 4 or the pivot part 12. FIG.

  The operation unit 20 connects the arms 8 and 16 of the cover holding unit 2 and the wire holding unit 10 so as to be able to move together. An adapter 22 that can be attached to the distal end of the remote control Yatco is provided at a substantially central position of the operation unit 20 so as to be rotatable with respect to the connecting rod 24. The adapter 22 is provided with a plunger 22a capable of detachably fixing the distal end of the remote control Yatco. The operation unit 20 is also a spacer that holds the cover holding unit 2 and the wire holding unit 10 at a predetermined interval, like the common rotating shaft 18. In this embodiment, the configuration in which the adapter 22 is rotatably provided with respect to the connecting rod 24 is shown as an example. However, the connecting rod 24 pivotally supports each of the arms 8 and 16. You may be the structure to do.

  By the way, in the cover clamping part 2 and the electric wire clamping part 10, there is a difference in the shape of the jaw parts 6 and 14 in addition to the size. The inner edge of the jaw portion 14 of the wire holding portion 10 is formed by a combination of linear shapes, whereas the inner edge of the jaw portion 6 of the cover holding portion 2 includes a curved shape. Specifically, the inner edge of the jaw part 14 of the electric wire holding part 10 is bent and formed in a concave shape at a substantially intermediate position between the pivotal support part 12 and the tip of the jaw part 14. On the other hand, the inner edge of the jaw 6 of the cover holding part 2 is formed in a concavely curved shape on the side of the pivot 4 with a substantially intermediate position between the pivot 4 and the tip of the jaw 6 as the boundary. Like the pinching part 10, it is formed in a straight line. These boundary portions are bent and formed in a concave shape as in the case of the electric wire holding portion 10.

  In addition, a protruding portion 6 d is formed around the pivotal support portion 4 of the cover holding portion 2 so as to protrude inward from the inner edge of the jaw portion 6. For this reason, the accommodated sleeve cover 104 (see FIG. 4) does not contact the inner edge of the jaw portion 6 because it abuts against the protruding portion 6 d in the vicinity of the pivotal support portion 4.

  Further, in the sleeve cover holder 1 according to the present embodiment, one of the clamping pieces 2a, 2b, 10a, and 10b (the clamping pieces 2a and 10a) that form a pair in both the cover clamping unit 2 and the wire clamping unit 10 is provided. It consists of two sheets. As a result, the number of edges in contact with the object to be grasped increases, so that the grip force increases and the clamping state is stabilized. Further, since the two sandwiching pieces 2a and 10a are arranged in different movable parts, the weight balance is good.

  FIG. 2 shows a front view of the sleeve cover holder 1. The common rotary shaft 18 is provided so as to be rotatable with respect to the pivotal support 4 of the cover clamping unit 2 and the pivotal support 12 of the wire clamping unit 10, and the adapter 22 of the operation unit 20 is provided to be rotatable with respect to the connecting rod 24. It has been mentioned above.

  As can be seen from FIG. 2, in the present embodiment, the common rotating shaft 18 and the connecting rod 24 are arranged substantially in parallel. For this reason, the height h1 from the connecting rod 24 to the pivot portion 4 and the height h2 from the coupling rod 24 to the pivot portion 12 are substantially the same.

  As described above, the sleeve cover holder 1 according to the present embodiment is configured such that force is evenly input to the cover holding unit 2 and the wire holding unit 10 having different sizes.

  Next, the shape of the jaws 6 and 14 on the tip side of the pivots 4 and 12 will be described with reference to FIG.

  FIG. 3 is a side view of the sleeve cover holder 1 as viewed from the cover holding portion 2 side. As described above, the jaw 6 of the cover holding portion 2 includes a curved portion and a linear portion. In FIG. 3, these are shown as a curved region 6a and a straight region 6c. Moreover, the part formed in the concave shape in the boundary of the curved area | region 6a and the linear area | region 6c is represented as the bending part 6b.

  Regarding the jaw portion 14 of the electric wire holding portion 10 (see FIG. 1), a region close to the pivot portion 12 (see FIG. 1) is shown as a straight region 14a, and a region on the tip side is shown as a straight region 14c. And the part formed in the concave shape in the boundary of the linear area | regions 14a and 14c is represented as the bending part 14b.

In FIG. 3, the alternate long and short dash line is shown along the direction in which the arm 8 extends. Since the arm 8 of the cover clamping unit 2 and the arm 16 of the wire clamping unit 10 are substantially parallel (see FIG. 1), the alternate long and short dash line is also projected onto the arm 16. As can be seen from FIG. 3, the jaw portion 6 of the cover holding portion 2 is farther away from the one-dot chain line to the outside (open side) than the jaw portion 14 of the wire holding portion 10.

  That is, for the same opening degree of the arms 8 and 16, the magnitude of the force component acting on the object to be clamped is smaller in the jaw portion 6 spreading outward than in the jaw portion 14 when compared at the same radial position. . As a result, even if the same clamping force is applied to the arms 8 and 16 by closing the operation portion 20, the force acting on the sleeve cover 104 (see FIG. 4) can be kept small, so that the surface is scratched. hard.

  As described above, in the sleeve cover holder 1 according to the present embodiment, the input side is configured to receive the force evenly on the cover clamping unit 2 and the wire clamping unit 10, and the clamping target is on the output side. The clamping force acting on the jaws 6 and 14 is adjusted by the difference in the opening angle.

  Therefore, the operator can hold the sleeve with an appropriate force according to each object by simply applying the force evenly without being aware of the delicate force adjustment on the sleeve cover and the electric wire.

  Next, the use state of the sleeve cover holder 1 will be described.

  FIG. 4 is a diagram for explaining a use state of the sleeve cover holder 1 and shows a state in which the electric wire 100 is held together with a sleeve cover 104 attached to the electric wire 100 subjected to connection processing by a sleeve (not shown). ing. The sleeve cover 104 shown here has a cylindrical main body portion 105 that can accommodate a sleeve, and end tubes 106 arranged at both ends of the main body portion 105. The end tube 106 is excellent in stretchability and includes a core member 107 on the inside for holding it in an expanded and expanded diameter state. The core member 107 is a member formed in a cylindrical shape by winding a core ribbon 107a in a spiral shape, and is disposed so that one end extends outward.

  When the electric wire 100 and the sleeve cover 104 are simultaneously held by the sleeve cover holder 1, it is possible to prevent the sleeve cover 104 from being displaced when one end of the core ribbon 107a is pulled out. By pulling out the core ribbon 107 a, the spiral is released, and the remaining end tube 106 comes into close contact with the covered end portion 102 of the electric wire 100. By performing such an operation at both ends of the sleeve cover 104, the insulation treatment of the connected electric wire 100 is completed.

  In the sleeve cover 104 according to the present embodiment, the electric wire 100 and the sleeve cover 104 can be sandwiched simultaneously by one remote control rod, so that the working time can be shortened and a tool such as a remote control rod and the like can be used. The number of workers can be reduced.

  Here, in the sleeve cover holder 1, the common rotating shaft 18 is used as a spacer in order to maintain a predetermined distance between the cover holding portion 2 and the wire holding portion 10. It is sufficient that the interval is set so that the edge processing of the cover 104 can be performed. In the case of the sleeve cover 104 having the contraction tube at the end as shown in FIG. 4, the interval may be set so that the end tube 106 can be straddled.

  FIG. 5 is a diagram for explaining the action of the jaw 6 of the cover clamping unit 2. 5A shows a state in which the sleeve cover 104 (see FIG. 4) and the wire 100 are opened so that they can be accommodated, and FIG. 5B shows a state in which the sleeve cover 104 and the wire 100 are sandwiched. Here, for convenience of explanation, the position representing the outer diameter of the main body portion 105 of the sleeve cover 104 and the position of the electric wire 100 are schematically represented by dotted lines.

  As shown in FIG. 5 (a), the sleeve cover holder 1 (see FIG. 1) is configured so that the protruding portion 6d around the pivotal portion 4 of the cover clamping portion 2 (see FIG. 1) is brought into contact with the lower end of the main body portion 105. ) Is arranged. At this time, a gap D1 is formed between the main body part 105 and the inner edge of the jaw part 6 by the height of the protruding part 6d.

  Next, as shown in FIG. 5B, when the jaw portion 6 is closed, the inner edge of each linear region 6 c on the distal end side comes into contact with the main body portion 105. Thus, the main body 105 is fixed at three points by the jaw 6. In the sleeve cover holder 1 according to the present embodiment, the gap D2 remains between the inner edge of the curved region 6a of the jaw portion 6 even when the main body portion 105 is held by the cover holding portion 2. The protrusion height of the protrusion 6d is set. That is, when the cover clamping part 2 is closed, there is no possibility that the lower end surface of the main body part 105 is caught by the inner edge of the jaw part 6. Further, since the protruding portion 6d is always a contact point, there is no possibility of scratching in the circumferential direction of the main body portion 105.

  As described above, in the situation where the visibility is not sufficient, and even in the remote operation where the sense is difficult to be transmitted to the hand, the protruding portion 6d of the cover holding portion 2 is simply brought into contact with one surface of the main body portion 105 of the sleeve cover 104. Positioning is possible only with this. Even if the operation unit 20 is inadvertently closed at the time of positioning, there is no risk of pinching, so the work is easy and skill is not required.

  In the sleeve cover holder 1 according to the present embodiment, the configuration in which the boundary between the curved region 6a and the straight region 6c of the jaw 6 is set at a substantially central position is shown as an example. As long as the sleeve cover 104 can be clamped at three points, the boundary may not be formed at the center.

  In the above-described embodiment, the configuration in which the protruding portion 6d is formed around the pivotal support portion 4 is shown as an example. However, it may not be formed. As long as it is formed smoothly in the curved region 6a in the vicinity of the pivot portion 4 so that the curvature of the inner edge of the jaw portion 6 of the sandwiching pieces 2a and 2b is continuous in a state where the sleeve cover 104 is opened to accommodate the sleeve cover 104. Since the overlapping area between the inner edges of the jaw portion 6 when closed, the sleeve cover 104 can be prevented from being caught.

  Since the sleeve cover holder of the present invention can temporarily hold the sleeve cover together with the electric wires without causing scratches on the surface, it is particularly useful in the step of holding the sleeve cover including the shrinkable tube and the like.

DESCRIPTION OF SYMBOLS 1 Sleeve cover holder 2 Cover clamping part 2a, 2b Clamping piece 4 Pivot part (1st pivot part)
6 jaw (first jaw)
6a Curved area 6b Bent part 6c Straight line area 6d Projecting part 8 Arm (first arm part)
10 electric wire clamping part 10a, 10b clamping piece 12 pivot part (2nd pivot part)
14 jaw (second jaw)
14a, 14c Linear region 14b Bending part 16 Arm (second arm part)
18 Common Rotating Shaft 20 Operation Unit 22 Adapter 22a Plunger 24 Connecting Rod 100 Wire 102 Covered End 103 Sleeve 104 Sleeve Cover 105 Body 106 End Tube 107 Core Member 107a Core Ribbon

Claims (3)

A sleeve cover holder for temporarily holding a sleeve cover that covers the sleeve subjected to the wire connection process,
A first jaw part for sandwiching the sleeve cover on one side via a first pivot part, a Yatco-type cover sandwiching part having a first arm part for opening and closing on the other side,
A Yatco-type electric wire holding part having a second jaw part smaller than the first jaw part and holding the electric wire on one side and a second arm part for opening and closing operation on the other side via a second pivot part; ,
A spacer supporting the first and second pivots at a predetermined interval;
An operation unit that connects the first and second arm units so as to be integrally movable;
A sleeve cover holder characterized by comprising: The first jaw portion of the cover holding portion is
The sleeve cover holder according to claim 1, further comprising a curved region having an inner edge formed in a concave shape on the first pivotal support side. The first jaw portion of the cover holding portion is
3. The sleeve cover holder according to claim 2, wherein a projecting portion projecting inward from an inner edge of the first jaw portion forming the curved region is formed in the vicinity of the first pivotal support portion. .