JP2014158318A - Cutting/separating jig - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cutting/separating jig for a cable equipped with a suspension wire which realizes improved work safety by retracting the tip of a cutting blade when not in use.SOLUTION: A cutting/separating jig 1 is provided to cut and separate, along a connection piece 107, a cable 100 equipped with a suspension wire 104 having a cable body 101 provided with a core wire and an outer cover for covering the core wire, the suspension wire provided with a support wire and an outer cover for covering the support wire, and the connection piece for connecting the outer covers in parallel. The cutting/separating jig 1 comprises: a pair of holding pieces 10 whose one end is supported by a hinge part 20 in a freely openable and closable manner, and which surround, when they are closed, an outer face of one of the cable body or the suspension wire with each of their inner faces; a cutting blade 30 which is supported by at least one of the holding pieces, that is the holding piece 10A, and has a blade tip 31 supported in such a manner that it can protrude and retract from the other end of the holding pieces; and a cutting blade operation mechanism 40 which causes the blade tip to retract into a retracted position when the pair of holding pieces are opened, whereas when the pair of holding pieces are closed, causes the blade tip to protrude into a protruding position.

Description

  The present invention can efficiently cut and separate the cable body and the suspension line in the suspension and separation work of the suspension line that is performed when the cable with the suspension line such as the communication cable provided with the suspension line is installed on the utility pole. Further, the present invention relates to a cutting and separating jig for a cable with a hanging wire, which has improved safety in operation.

When installing a communication cable such as an optical fiber cable between utility poles, it is common to install the communication cable while being locked to a suspension line installed between the utility poles in order to prevent the cable from being damaged by wind pressure or its own weight. Is.
2. Description of the Related Art Conventionally, a cable with a suspension line in which a suspension line is integrated in parallel along the axial direction of a communication cable is known. The cable with a suspension line has a configuration in which a suspension line in which a support line is covered with a resin sheath is integrated with a resin sheath that covers a cable core via a narrow strip-shaped resin connection piece. When installing the cable with a hanging line, the resin connecting piece is cut along the longitudinal direction with a jig such as a knife, so that the hanging line is partially separated from the communication cable, and the separated hanging line part is locked by the hanging tool.
As a jig for cutting the resin connection piece along the longitudinal direction, Patent Document 1 discloses a cutting / separating jig for a cable with a suspension line. The cutting / separating jig includes a slide member that is fitted to the outer surface of either the cable body or the hanging wire and moves in the axial direction, and a resin connecting piece that is attached to the slide member and moves in the axial direction of the slide member. And a cutting blade for cutting. The slide member has a structure in which two semi-cylindrical divided pieces are pivotally supported by hinge portions provided at adjacent end edges so as to be freely opened and closed, and have a slit at a portion corresponding to the resin connecting piece. The cutting blade is disposed across both end edges of the divided pieces facing each other across the slit.

JP 2009-276689 A

However, in the invention of Patent Document 1, since the cutting edge of the cutting blade always protrudes into the slit, the cutting edge touches the operator's hand or the like when the cutting separation jig is not used, and the operator is injured. There is a fear.
The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a cutting / separating jig for a cable with a suspension line, which has improved operational safety.

In order to solve the above problems, the invention according to claim 1 is a cable body having a core wire and a sheath covering the core wire, and a suspension wire having a support wire and a sheath covering the support wire; A cutting / separating jig that cuts and separates the cable with the suspension line along the connecting piece, and is supported by the hinge portion so as to be opened and closed and closed. A pair of sandwiching pieces that surround the outer surface of either the cable body or the suspension line by the respective inner surfaces, and a cutting that is supported by at least one of the sandwiching pieces so that the cutting edge can be protruded and retracted from the sandwiching pieces When the blade and the pair of holding pieces are opened, the cutting edge is retracted to a retracted position where the connecting piece cannot be cut, while when the pair of holding pieces are closed, the cutting edge is cut off the connecting piece. Protrusion Characterized in that and a cutting blade operating mechanism for protruding the location.
When the cable body or the suspension wire is inserted between the holding pieces, the pair of holding pieces are opened. At this time, the cutting blade operating mechanism retracts the blade edge to a position where the connection piece cannot be cut. When the pair of sandwiching pieces are closed, the cutting blade operating mechanism causes the cutting edge to protrude to a position where the connecting piece can be cut. At this time, the hanging cable can be cut and separated along the connecting piece by the protruding cutting blade.

According to a second aspect of the present invention, in the first aspect, the cutting blade operating mechanism is configured such that when the other sandwiching piece is opened with respect to the one sandwiching piece, the other sandwiching piece is opened. An operating piece is provided that moves the blade edge to the retracted position and causes the blade edge to protrude by the closing operation of the other holding piece when the other holding piece is closed.
According to a second aspect of the present invention, the cutting blade operating mechanism includes an operating piece that operates in accordance with the opening / closing operation of the clamping piece, and the cutting blade moves forward and backward when the operating piece operates.
According to a third aspect of the present invention, in the first or second aspect, a guide portion that guides the operating piece is provided.
In the invention of claim 3, since the guide portion guides the working piece so as to move along the predetermined route, the cutting blade can be moved forward and backward smoothly.

According to a fourth aspect of the present invention, in any one of the first to third aspects, an elastic biasing member that moves the cutting blade to the retracted position is provided.
In the invention of claim 4, the cutting blade is moved in the retracting direction by the elastic biasing force of the elastic biasing member. Since the cutting blade cannot be protruded unless a force that resists the elastic biasing force is applied, safety can be improved.
According to a fifth aspect of the present invention, in any one of the first to fourth aspects, a pair of operation pieces for opening and closing each of the holding pieces via the hinge portion is provided.
The cutting / separating jig according to the invention of claim 5 is formed in a pliers shape, and the clamping piece opens and closes according to the opening / closing operation of the operating piece.

  In the cutting / separating jig of the present invention, the cutting blade operating mechanism retracts the cutting edge when the pair of clamping pieces is opened, and the cutting blade operating mechanism projects the cutting edge when the pair of clamping pieces are closed. When the cable body or hanging line is inserted between the holding pieces, or when the cable body or hanging line is taken out between the holding pieces, the cutting edge is retracted and the connecting piece cannot be cut when the cutting and separating operation is not performed. Therefore, it is possible to prevent injuries caused by the operator touching the blade edge, and the safety in operation is high.

It is a perspective view which shows the structure of the cable with a hanging line cut | disconnected by the cutting / separation jig | tool of the cable with a hanging line of this invention. It is sectional drawing which shows the structure of the cutting-separation jig | tool of the cable with a suspension line which concerns on 1st embodiment of this invention, (a) shows the time of opening, (b) shows the time of closing, (c) is a lock | rock It is a figure which shows a state. (A), (b) is a top view which shows the structure of a cutting blade. It is a perspective view of the cutting separation jig at the time of opening. It is a figure which shows the state which is cutting-separating the suspension wire from the cable main body with the cutting-separation jig | tool of this invention. It is sectional drawing which shows the structure of the cutting-separation jig | tool of the cable with a suspension line concerning 2nd embodiment of this invention, (a) shows the time of opening, (b) shows the time of closing, (c) is a lock | rock It is a figure which shows a state. It is sectional drawing which shows the structure of the cutting-separation jig | tool of the cable with a suspension line which concerns on 3rd embodiment of this invention, (a) shows the time of opening, (b) shows the time of closing, (c) is a lock | rock It is a figure which shows a state.

Hereinafter, the present invention will be described in detail with reference to embodiments shown in the drawings. However, the components, types, combinations, shapes, relative arrangements, and the like described in this embodiment are merely illustrative examples and not intended to limit the scope of the present invention only unless otherwise specified. .
[First embodiment]
The cutting / separating jig according to the first embodiment of the present invention will be described. FIG. 1 is a perspective view showing a configuration of a cable with a suspension line that is cut and separated by a cutting and separating jig for the cable with a suspension line of the present invention. FIG. 2 is a cross-sectional view showing the configuration of the cutting and separating jig for the cable with suspension wire according to the first embodiment of the present invention, where (a) shows when opened, (b) shows when closed, c) is a diagram showing a locked state.
The cutting / separating jig according to this embodiment retracts the cutting edge to a retracted position where the connecting piece cannot be cut when the pair of holding pieces are supported by the hinge portion so that one end thereof is freely opened and closed, and the pair of holding pieces are opened. On the other hand, there is a feature in that a cutting blade operating mechanism is provided that causes the cutting edge to protrude to a protruding position where the connecting piece can be cut when the pair of clamping pieces are closed.

2 is a jig used for cutting and separating the cable 100 with a suspension line shown in FIG. 1.
As shown in FIG. 1, a cable with a suspension line 100 is, for example, an optical fiber cable with a suspension line. The cable with a suspension line 100 includes an optical fiber core wire (core wire 102) and a resin outer skin 103 (outer skin) that covers the core wire 102. A cable body 101 having a support line 105 and a suspension line 104 having a resin outer skin 106 (outer skin) covering the support line 105, and both resin skins 103 in a state in which the suspension line 104 is held in parallel to the cable body 101. The resin connection piece 107 which connects 106 in parallel along a longitudinal direction is provided.

  The cutting / separating jig 1 shown in FIG. 2 separates the suspension wire 104 from the cable body 101 by cutting the resin connection piece 107 along the longitudinal direction with a cutting blade in the process of inserting the cable body 101 therein. It is means of.

The cutting / separating jig 1 is supported by the hinge portion 20 so that the one end portion 11 (11A, 11B) can be freely opened and closed. The first sandwiching piece 10A supported by a pair of sandwiching pieces 10 (first sandwiching piece 10A, second sandwiching piece 10B) surrounding at least one outer surface and at least one sandwiching piece (first sandwiching piece 10A). When the pair of sandwiching pieces 10 are opened so that the cutting edge 31 can be protruded and retracted from the other end portion 13A, the cutting edge 31 is retracted from the other end portion 13A while the pair of sandwiching pieces 10 are removed. A cutting blade operating mechanism 40 that projects the blade tip 31 from the other end portion 13A when it is closed.
The resin connecting piece 107 can be cut in the process of inserting the suspension line 104 into the cutting / separating jig 1, but in the following embodiment, the cable body 101 is inserted into the cutting / separating jig. An example of the configuration will be described.

Hereinafter, when not distinguishing each clamping piece, the alphabetic symbols A and B will be omitted.
The sandwiching piece 10 is disposed on the other end side of the sandwiching piece 10 so as to surround the cable body 101, and the operation unit 14 (12A, 12B) disposed between the surrounding part 12 and the hinge part 20 ( 14A, 14B), and is made of a hard material such as resin or metal.
The pair of sandwiching pieces 10 are resin-connected by the opposing other end edges 16 (16A, 16B) of the two sandwiching pieces 10 when the respective sandwiching pieces 10 are closed in a state where the cable body 101 is surrounded by the surrounding portions 12. The piece 107 is clamped. Further, in the process of inserting the cable body 101, the cutting projecting from the other end 13A of one clamping piece (first clamping piece 10A) toward the other end 13B of the other clamping piece (second clamping piece 10B). The resin connection piece 107 is cut by the cutting edge 31 of the blade 30.

Here, “when the pair of sandwiching pieces 10 are opened” means that the cable body 101 can be inserted into the surrounding portions 12A and 12B via the other end portions 13A and 13B of at least two sandwiching pieces 10. In addition, it means that each holding piece 10 is opened to such an extent that the cable body 101 can be taken out from the surrounding portions 12A and 12B. At this time, the blade edge 31 moves to a retracted position where the connection piece 107 cannot be cut.
Further, “when the pair of sandwiching pieces 10 are closed” means that the side surfaces (outer surfaces) of the resin connection pieces 107 are opposed to each sandwiching piece 10 in a state where the outer surface of the cable body 101 is surrounded by the surrounding portions 12A and 12B. It means when sandwiched between the other end portions 13A and 13B. At this time, the blade edge 31 moves to a protruding position where the connection piece 107 can be cut. In this state, the cable with suspension line 100 does not fall off from the direction intersecting the axial direction, the cutting / separating jig 1 can be moved along the axial direction of the cable body 101, and the cutting edge 31 of the cutting blade 30 is used. The resin connection piece 107 can be cut.

The size and shape of the inner peripheral surface of the surrounding portion 12 are set to a state suitable for inserting the cable main body 101.
A low friction material that reduces sliding resistance with the cable body 101 is applied to the surface (inner surface) of the surrounding portion 12. Similarly, a bottom friction material that reduces sliding resistance with the resin connection piece 107 is also applied to the opposite end surface of the other end portion 13 of the holding piece 10. As the low friction material, for example, urethane resin can be used. Moreover, you may comprise the whole clamping piece 10 containing the surrounding part 12 with a low friction material.
Further, a rib (not shown) extending along the axial direction of the surrounding portion 12 may be formed on the surface of the surrounding portion 12 separately from or in addition to the low friction material. The axial direction is equal to the direction in which the cable body 101 slides. By forming the rib, the contact area with the cable body 101 can be reduced to reduce the sliding resistance, and the cutting / separating jig 1 can be smoothly slid with respect to the cable body 101.
The operation part 14 (14A, 14B) is disposed on the one end part 11 side of the sandwiching piece 10. Enclosures 12 are arranged at the other ends of the operating parts 14, respectively. The surrounding portion 12 is opened and closed by the hinge portion 20 via the operating portion 14.

3A and 3B are top views showing the configuration of the cutting blade, and correspond to the view observed from above in FIG. The cutting blade 30 is in a state in which each cutting piece 10 is closed, with the cutting edge 31 facing the axial end, and the cutting edge 31 straddling the other end portions 13 of each holding piece 10. Protruding.
The cutting blade 30 may be formed with a cutting edge 31A that faces only to one end in the axial direction as shown in FIG. 3 (a), or to both ends in the axial direction as shown in FIG. 3 (b). The blade edge 31B may be formed.
When forming the cutting edge 31A that faces only one end side in the axial direction with respect to the cutting blade 30, the cutting direction of the resin connecting piece 107 by the cutting / separating jig 1 is limited to one direction, whereas on both end sides in the axial direction. When the facing blade edge 31B is formed, the cutting direction of the resin connection piece 107 by the cutting / separating jig 1 is not limited.
When cutting the resin connection piece 107, it is desirable to form a short cut with a knife at the cutting start location of the resin connection piece 107 in advance.
However, as shown in FIG. 3, the cutting edge 30 of the cutting blade 30 is sharpened toward the other end edge 16B of the second sandwiching piece 10B, so that the cutting blade 30 becomes a resin connection piece when each clamping piece 10 is closed. It is also possible to penetrate 107. In this case, pre-processing with a knife is not necessary.
Moreover, in FIG. 3, although it is the structure which attached the cutting blade 30 only to one clamping piece (1st clamping piece 10A), you may attach to both clamping pieces 10 (10A, 10B). In this case, it is necessary to arrange the cutting blades at positions where they do not interfere with each other when the blade tip 31 is projected.

The cutting blade operating mechanism will be described with reference to FIGS. FIG. 4 is a perspective view of the cutting / separating jig when opened. In FIG. 4, for convenience of explanation, illustration of the cutting blade and the operating piece is omitted.
The cutting blade operating mechanism 40 is a mechanism for projecting and retracting the cutting blade 30. When the second holding piece 10B (the other holding piece) is opened with respect to the first holding piece 10A (one holding piece), the second holding piece is held. While the cutting blade 30 is moved to the retracted position by the opening operation of the piece 10B (FIG. 2A), the cutting blade 30 is protruded by the closing operation of the second holding piece 10B when the second holding piece 10B is closed. (FIG. 2B) An operating piece 41 is provided.
In the present embodiment, the operating piece 41 is made of an elastic band plate-like metal or resin. The operating piece 41 is made of a material that hardly expands or contracts in the longitudinal direction. The cutting blade 30 is attached to one end 41a of the operating piece 41, and the other end 41b of the operating piece 41 is fixed to the attaching portion 15 disposed at the other end of the operating portion 14B of the second clamping piece 10B. . The other end of the operating piece 41 is fixed at a position separated from the rotation center of the hinge portion 20 by a predetermined length.

Moreover, as shown in FIG. 4, 10 A of 1st clamping pieces are provided with the guide part 17 which guides the operation piece 41 so that it may advance / retreat to the longitudinal direction. In this embodiment, the guide part 17 consists of a recess formed in the circumferential direction of the surrounding part along the inner surface of the surrounding part 12A of the first clamping piece 10A. The operating piece 41 advances and retreats while sliding along the guide portion 17.
Moreover, 10 A of 1st clamping pieces have the bridging member 18 which straddles the concave guide part 17 along an axial direction. The bridging member 18 prevents the operating piece 41 from being separated from the guide portion 17 and protruding into the space formed by the surrounding portions 12A and 12B. In FIG. 4, the bridging member 18 is flush with the inner surface of the surrounding portion 12 </ b> A, and prevents the cable body 101 from being caught in the guide portion 17 when the resin connection piece 107 is cut. The bridging member 18 may also be used as the above-described rib (not shown) by projecting into the surrounding portion 12A.

The advance / retreat operation of the cutting blade 30 by the cutting blade operating mechanism 40 is as follows.
As shown in FIG. 2A, when each holding piece 10 is opened, the attachment portion 15 of the second holding piece 10B is separated from the first holding piece 10A. Since the other end 41b of the operating piece 41 is fixed to the mounting portion 15 of the second holding piece 10B, the other end portion of the operating piece 41 is pulled out from the guide portion 17 of the first holding piece 10A, and the cutting edge 31 is moved. Retract the connection piece to the retreat position where it cannot be cut.
As shown in FIG. 2 (b), when each clamping piece 10 is closed, the attachment portion 15 of the second clamping piece 10B approaches the operating portion 14A of the first clamping piece 10A. When the other end portion of the operating piece 41 is pushed into the guide portion 17 of the first holding piece 10A, the operating piece 41 moves in the longitudinal direction along the guide portion 17, so that the cutting blade 30 is moved to the first holding piece 10A. The blade 31 is pushed out from the other end portion 13A and protruded to a protruding position where the connecting piece can be cut.
Thus, the operating piece 41 moves the cutting blade 30 forward and backward in the process of moving (advancing and retreating) according to the opening and closing operation of the clamping piece 10. Further, by fixing the other end 41 b of the operating piece 41 to the mounting portion 15 disposed at a position separated from the rotation center of the hinge portion 20, the moving amount (advancing / retreating amount) of the operating piece 41 with respect to the opening / closing angle of the holding piece 10. ) Can be increased, and the cutting blade 30 can be moved up and down efficiently.
The operation piece 41 of the cutting blade operation mechanism 40 may be configured to operate the cutting blade 30 via the outer surface of the holding piece 10.

In addition, the cutting / separating jig 1 includes an elastic biasing member 50 that elastically biases each holding piece 10 so as to move the cutting blade 30 to the retracted position.
For example, as shown in FIG. 2, the elastic biasing member 50 can be a leaf spring that presses the operating parts 14 in directions away from each other. Moreover, you may arrange | position a coil spring instead of a leaf | plate spring. Unless a force that resists the elastic force of the elastic biasing member 50 is applied to each clamping piece 10, the cutting blade 30 cannot be projected. Therefore, when the cable main body 101 is inserted into the surrounding part 12 or taken out from the surrounding part 12, the cutting edge 31 can be maintained at the retracted position, and safety in operation can be improved.
The elastic biasing member can be a torsion spring disposed on the hinge portion 20 in addition to the above-described spring.

Further, as shown in FIG. 2, the cutting / separating jig 1 is provided with a locking means 60 for maintaining each clamping piece 10 in a closed state.
The locking means 60 includes, for example, a hook member 61 that is rotatably supported by the first holding piece 10A, and a locked portion 62 that is provided on the second holding piece and is locked by the hook of the hook member 61. Can be configured.
When each holding piece 10 is closed, the hook of the hook member 61 is locked to the locked portion 62 to shift to the locked state shown in FIG. Opening of each clamping piece 10 is prohibited against the elastic biasing force of the biasing member 50.
Further, by removing the hook member 61 from the locked portion 62 and shifting to the unlocked state shown in FIG. 2A or 2B, the holding pieces 10 are allowed to be opened.

  Moreover, the recessed part 19 which receives the cutting blade 30 is formed in the other end part 13B of the 2nd clamping piece 10B. The recess 19 shields the blade tip 31 of the cutting blade 30 protruding from the first sandwiching piece 10A when in the locked state so as not to be exposed. Therefore, the lock unit 60 also functions as a shielding maintaining unit that maintains the cutting blade 30 in the shielding state. Thus, even if the cutting edge 31 protrudes from the second clamping piece 10B, each clamping piece 10 can be maintained in the closed state by the lock means 60, so that the operator contacts the cutting edge. Can be prevented. In particular, as shown in FIG. 2 (c), by receiving the cutting edge 31 in the recess 19, the entire cutting blade 30 can be accommodated in the surrounding portion 12, and safety can be improved.

FIG. 5 is a diagram showing a state in which the suspension line is cut and separated from the cable body by the cutting and separating jig of the present invention.
The operator forms a short cut with a knife at the cutting start location of the resin connection piece 107 in advance. With the cutting / separating jig 1 opened, the cable body 101 located in the middle in the axial direction of the cable with suspension line 100 is inserted into the surrounding portion 12 (FIG. 2A), and each clamping piece 10 is closed (FIG. 2). 2 (b)). At this time, the pinching piece 10 is closed so that the cutting blade 30 fits in the cut formed in advance.
Thereafter, the cutting / separating jig 1 is moved in the direction in which the blade edge 31 faces. The cable body 101 slides in the axial direction while being guided by the surrounding portion 12. The resin connection piece 107 immediately before cutting is held between the other end portions 13 of the holding pieces 10, and the resin connection piece 107 is cut by the cutting edge 31 of the protruding cutting blade 30 in the process of sliding the cutting and separating jig 1. Is disconnected. During the cutting operation, the resin connecting piece 107 continues to be supported between the other end portions 13 of the respective holding pieces 10, so that the movement trajectory of the cutting blade 30 with respect to the cable main body 101 is stabilized, and the cutting edge 31 enters too much into the cable main body 101 side. The resin outer skin 103 and the core wire 102 are not damaged.
The suspension line 104 separated from the cable body 101 is locked by a hanging metal object or the like provided on the messenger wire.

As described above, according to the cutting / separating jig according to the present embodiment, the holding piece can be freely opened and closed, so that only the resin connecting piece at the intermediate position (non-end portion position) of the cable with the hanging wire is cut to the required length. be able to.
Further, the cutting blade operating mechanism retracts the blade edge when the pair of clamping pieces is opened, and the cutting blade operating mechanism projects the blade edge when the pair of clamping pieces are closed. When the cable body is inserted into the enclosure, or when the cable body is taken out of the enclosure, etc., when the cutting / separating operation is not performed, the blade tip retracts and the connection piece cannot be cut, so that the operator touches the blade edge. Injury caused by the work can be prevented and work safety is high.
Further, when the cutting / separating jig is stored, each clamping piece can be kept closed by the locking means, so that the safety of the jig can be improved. Further, in the locked state, the cutting blade can be maintained in a shielded state, so that unnecessary injury can be prevented.
Moreover, since the guide part guides the working piece so as to move along a predetermined route, the cutting blade can be moved forward and backward smoothly.

[Second Embodiment]
A cutting / separating jig according to a second embodiment of the present invention will be described with reference to FIG. FIG. 6 is a cross-sectional view showing a configuration of a cutting and separating jig for a cable with a hanging wire according to the second embodiment of the present invention, wherein (a) shows an open state, (b) shows a closed state, c) is a diagram showing a locked state. The cutting / separating jig according to the present embodiment is characterized in that the cutting blade operating mechanism includes an operating piece having an arc-shaped cross section made of a hard material that cannot be elastically deformed. Hereinafter, the same components as those of the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

The cutting blade operating mechanism 40 of the cutting / separating jig 2 supports the cutting blade 30 at one end 42a and forms an arc shape along the surrounding portion 12A and the other end of the operating portion 14B of the second holding piece 10B. A pressing piece 43 that is formed to protrude and presses the other end 42 b of the operating piece 42, and an elastic urging member 44 that elastically urges the operating piece 42 in a direction in which the cutting edge 31 is retracted.
The cross section in the direction orthogonal to the axial direction of the surrounding portion 12A of the first sandwiching piece 10A has an arc shape, and the operating piece 42 is formed concentrically with the surrounding portion 12A. The operating piece 42 moves forward and backward while sliding with the inner surface of the surrounding portion 12A. The operating piece 42 can be made of a hard material that cannot be elastically deformed. Further, the operation piece 42 is guided by the guide portion 17 shown in FIG. 4, thereby preventing movement in the axial direction and separation from the surrounding portion 12 </ b> A.
The pressing piece 43 is disposed at a position separated from the rotation center of the hinge portion 20 by a predetermined length. The pressing piece 43 presses the other end 42b of the operating piece 42 when each holding piece 10 is closed, thereby causing the cutting blade 30 attached to the one end 42a of the operating piece 42 to be one end 11A of the first holding piece 10A. Protrude from.
An elastic biasing member 44 that elastically biases the operating piece 42 so as to move the cutting blade 30 to the retracted position is disposed at an appropriate position of the surrounding portion 12A. For example, as shown in FIG. 6, the elastic biasing member 44 can be a pulling spring having one end locked at a proper position of the first holding piece 10 </ b> A and the other end locked at a proper position of the operating piece 42.
When each clamping piece 10 is closed, the pressing piece 43 presses the other end 42b of the operating piece 42 against the elastic biasing force of the elastic biasing member 44, and the cutting edge 30 of the cutting blade 30 is moved to the first clamping piece 10A. It protrudes from the other end 13A.

When each clamping piece 10 is opened, the operating piece 42 moves the cutting blade 30 to the retracted position while the other end 42b of the operating piece 42 presses the pressing piece 43 by the elastic biasing force of the elastic biasing member 44. Move to let.
Thus, also in this embodiment, when inserting the cable main body 101 into the enclosure part 12 or taking out from the enclosure part 12, the blade edge | tip 31 can be maintained in a retracted position, and the safety | security on work can be improved. .
Further, the cross-sectional shape orthogonal to the axial direction of the surrounding portion 12A of the first holding piece 10A is an arc shape, and the cross-sectional shape orthogonal to the axial direction of the operating piece 42 is concentric along the surrounding portion 12A of the first holding piece 10A. Since it is formed in an arc shape, the operating piece 42 can be made of a hard material that cannot be elastically deformed. Therefore, in a state where the cable body 101 of the cable with suspension line 100 is surrounded by the surrounding portion 12, each holding piece 10 is closed, and the cutting blade 30 protruding from the other end portion 13A of the first holding piece 10A is bitten into the resin connection piece 107. The cutting blade 30 penetrates the resin connecting piece 107 without causing the operating piece 42 to deform without resisting the reaction force from the resin connecting piece 107.

[Third embodiment]
A cutting / separating jig according to a third embodiment of the present invention will be described with reference to FIG. FIG. 7 is a cross-sectional view illustrating a configuration of a cutting and separating jig for a cable with a hanging wire according to a third embodiment of the present invention, in which (a) shows an open state, (b) shows a closed state, c) is a diagram showing a locked state. Hereinafter, the same components as those of the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

The cutting / separating jig 3 according to the present embodiment has a configuration like a pliers, and includes a pair of operation pieces 70 (70A, 70B) for opening and closing each of the holding pieces 10 via the hinge portion 20, respectively.
That is, each holding piece 10 is arranged on one side via the hinge part 20, and an operation piece 70 for opening and closing each holding piece 10 is arranged on the other side. Each clamping piece 10 is integrated with each operation piece 70 via the hinge portion 20, and when the operation piece 70 is gripped and brought close to each other as shown in FIG. Thus, each clamping piece 10 is shifted to a closed state. On the contrary, by opening the operation piece 70 as shown in FIG. 7A, the holding pieces 10 are also opened.
By opening and closing each operation piece 70, the holding piece 10 can be opened and closed, and the cutting blade 30 can be protruded or retracted according to this opening and closing operation, as shown in the first embodiment.

Moreover, in this embodiment, the elastic biasing member 71 which elastically biases each operation piece 70 so that the cutting blade 30 may be moved to a retracted position is provided. The elastic biasing member 71 can be, for example, a coil spring installed between the operation pieces 70.
Further, the cutting / separating jig 3 is provided with a lock means 60 for maintaining each sandwich piece 10 in a closed state. The locking means 60 includes, for example, a hook member 61 that is rotatably supported by the first operation piece 70A, a locked portion 62 that is provided on the second operation piece 70B and is locked by a hook of the hook member 61, It can consist of Since the operation of the locking means 60 is the same as that of the first embodiment, the description thereof is omitted.
As described above, in the present embodiment, the cutting / separating jig is configured in the shape of a pliers, so that the cutting / separating jig can be easily grasped and the working efficiency is increased.
Note that the cutting blade operating mechanism shown in the second embodiment may be applied to the present embodiment. Moreover, you may apply the structure shown in 1st embodiment and 2nd embodiment as an elastic biasing member which elastically biases in the direction which retracts a blade edge | tip. Further, the locking means shown in the first embodiment may be applied.

  1, 2, 3 ... cutting and separating jig, 10 ... clamping piece, 10 A ... first clamping piece, 10 B ... second clamping piece, 11 ... one end part, 12 ... enclosing part, 13 ... other end part, 14 ... actuating part DESCRIPTION OF SYMBOLS 15 ... Mounting part, 16 ... Other end edge, 17 ... Guide part, 18 ... Bridging member, 19 ... Recessed part, 20 ... Hinge part, 30 ... Cutting blade, 31 ... Cutting edge, 40 ... Cutting blade operating mechanism, 41 ... Actuation Pieces 42 ... Actuation pieces 43 ... Pressing pieces 44 ... Elastic biasing members 60 ... Locking means 60 ... Elastic biasing members 61 ... Hook members 62 ... Locked portions 70 ... Operation pieces 70A ... First operation piece, 70B ... second operation piece, 71 ... elastic urging member, 100 ... cable with cable, 101 ... cable body, 102 ... core wire, 103 ... resin sheath, 103 ... both resin sheaths, 104 ... hang wire, 105 ... support wire, 106 ... resin sheath, 107 ... resin connecting piece

Claims (5)

Suspension wire comprising: a cable body having a core wire and a sheath covering the core wire; a support wire and a suspension wire having a sheath covering the support wire; and a connecting piece for connecting the sheaths in parallel. A cutting and separating jig for cutting and separating the attached cable along the connecting piece,
A pair of holding pieces that are supported by the hinge portion so as to be opened and closed, and enclose either the outer surface of the cable body or the suspension line by the inner surfaces of the hinge portions when closed;
A cutting blade supported by at least one of the sandwiching pieces and supported so as to be able to protrude and retract from the sandwiching piece;
When the pair of sandwiching pieces are opened, the cutting edge is retracted to a retracting position where the connection piece cannot be cut, while when the pair of sandwiching pieces are closed, the cutting edge can be cut off the connection piece. A cutting / separating jig comprising: a cutting blade actuating mechanism that protrudes into the cutting blade.   The cutting blade actuating mechanism moves the blade edge to the retracted position by opening the other clamping piece when the other clamping piece is opened with respect to the one clamping piece, The cutting / separating jig according to claim 1, further comprising an operation piece that causes the blade edge to protrude by closing operation of the other holding piece when the holding piece is closed.   The cutting / separating jig according to claim 1, further comprising a guide portion for guiding the operating piece.   The cutting / separating jig according to claim 1, further comprising an elastic biasing member that moves the cutting blade to the retracted position.   The cutting / separating jig according to any one of claims 1 to 4, further comprising a pair of operation pieces for opening and closing each of the holding pieces via the hinge portion.

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