JP2008029139A - Torsion-preventive coil-shaped cable hanger - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cable hanger which does not cause return of torsion. <P>SOLUTION: In the torsion-preventive coil-shaped cable hanger 10; a cable 60 laid along a messenger wire 50 over a pair of electric poles is supported by the messenger wire 50, and the cable hanger includes a body 20 of the cable hanger and a plurality of wire slide preventive portions 30. The body 20 of the cable hanger helically extends so that it may do so along a side face of an imaginary cylinder C extended in parallel with the messenger wire 50, and arranges the cable 60 inside the imaginary cylinder C, while the wire slide preventive portions are formed at the body 20 of the cable hanger at predetermined intervals. A plurality of the wire slide preventive portions 30 fit and fix the messenger wire 50, so that a place P where the body 20 of the cable hanger is put into contact with the messenger wire 50 may not move in a direction X where the body 20 of the cable hanger extends, and so that the place P may move in a direction Y where the messenger wire 50 extends. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a cable hanger.

  A cable, such as an electric wire, is supported between two supports, such as a utility pole, by an attachment method in accordance with the regulations of a support manager who manages the utility pole. The support manager stipulates that when a plurality of cables are supported by a utility pole, a plurality of cables are bundled into one strip using a spiral or coiled cable hanger.

  As shown in FIG. 12, the coil-shaped cable hanger 110 supports the messenger wire 50 with a cable 60 installed along the messenger wire 50 extending between a pair of supports. The cable hanger 110 is a single wire that spirally extends along the side surface of a virtual cylinder that extends parallel to the messenger wire 50.

  However, since a wire such as a single wire is wound spirally, as shown in FIG. 13, the cable hanger 110 is rotated around the messenger wire 50 by a strong wind such as a typhoon or a storm. When a force, that is, a force in the X direction, acts, the twist of the cable hanger 110 is returned, the cable hanger 110 is lowered in the Y direction, and the cable 60 may be pulled out in the Z direction.

Patent Document 1 discloses a cable hanger that does not cause bulging of the winding portion of the cable hanger and does not cause the cable to hang down, even on sloping ground or when it is necessary to take a large degree of sag in the messenger wire and cable. In the cable hanger for supporting the cable along the messenger wire supported by the utility pole, it is proposed that the cable hanger is constituted by a single wire that is crimped by repeating a predetermined bending pattern.
Japanese Patent Laid-Open No. 10-257656

  However, since the cable hanger described in Patent Document 1 is also formed of a single wire, like the cable hanger 110, the force around the messenger wire acts on the cable hanger due to strong winds such as typhoons and storms. Then, the twist of the cable hanger is returned, the cable hanger is lowered, and the cable may be pulled out in the Z direction.

  An object of the present invention is to provide a cable hanger that does not twist back.

  The present inventor has found that twisting can be prevented by using a structure in which a steel wire or the like is passed through a coiled hanger, and has completed the present invention described below.

  A twist-prevention type coiled cable hanger according to the present invention is a cable hanger that supports a cable laid along a wire (for example, a messenger wire or a steel wire) between a pair of supports, A cable hanger main body extending spirally along the side of the virtual cylinder extending parallel to the wire, the cable hanger main body having the cable hanger disposed inside the virtual cylinder, and a predetermined A plurality of wire sliding prevention portions formed at intervals, wherein the plurality of wire sliding prevention portions move at a position where the cable hanger body contacts the wire in a direction in which the cable hanger body extends. The messenger wire so that it can move in the direction in which the wire extends. To stop.

  Each wire sliding prevention part may have a rod-like straddle part that is integrally connected to the cable hanger body so as to straddle the wire, or a ring-like part through which the wire passes You may make it have.

  Each wire sliding prevention part may be a through hole formed at a predetermined position of the cable hanger body.

  Each wire sliding prevention part is a locking part attached to a pair of opposing portions of the cable hanger body so as to cross between the wire and the cable hanger as seen from the extending direction of the virtual cylinder. You may make it have.

  According to the present invention, the twist-prevention type coiled cable hanger has a plurality of wire sliding prevention portions for locking the wire so that the portion where the cable hanger body contacts the wire does not move in the direction in which the cable hanger body extends. Therefore, the cable hanger is not twisted back even if a force around the wire acts on the cable hanger due to a strong wind such as a typhoon or a storm.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  Referring to FIGS. 1 and 2, the twist-prevention type coiled cable hanger 10 includes a cable hanger body 20 and a plurality of wire sliding prevention portions 30.

  As shown in FIG. 1, the cable hanger body 20 extends in a spiral shape along the side surface of the virtual cylinder C extending parallel to the messenger wire 50 so that the cable 60 is disposed inside the virtual cylinder C. Yes. The cable hanger body 20 is formed of a known wire, resin, or a combination thereof.

  The plurality of wire sliding prevention portions 30 are formed in the cable hanger body 20 at a predetermined interval. Specifically, as shown in FIG. 2, the plurality of wire sliding prevention portions 30 have a predetermined interval such that they are at the same position (upward in FIG. 2) when viewed from the extending direction of the virtual cylinder C. Formed.

  The wire sliding prevention part 30 has a rod-like straddle part 31. The straddle portion 31 is integrally connected to the cable hanger body 20 at both ends of the straddle portion 31 so as to straddle the messenger wire 50. Therefore, the messenger wire 50 is positioned so as to contact the inside of the region a formed by the cable hanger body 20 and the straddle portion 31 when viewed from the extending direction of the virtual cylinder C.

  Further, the cable 60 is formed by the cable hanger main body 20 and the straddling portion 31 in the range of the inner side 22 of the cable hanger main body 20 and the outer side of the region a as viewed from the extending direction of the virtual cylinder C. It is located so as to contact the inside of the area b.

  Therefore, the twist-prevention type coiled cable hanger 10 includes a plurality of wires for locking the messenger wire 50 so that the position P where the cable hanger body 20 contacts the messenger wire 50 does not move in the direction X in which the cable hanger body 20 extends. Since the anti-sliding portion 30 is provided, even if a force that rotates around the messenger wire 50 acts on the twist-prevention type coiled cable hanger 10 due to strong wind, the twist-prevention type coiled cable hanger 10 does not twist back. .

  With reference to FIG. 3 to FIG. 5, a procedure for laying the twist-prevention type coiled cable hanger 10 between two power poles will be described.

  As shown in FIG. 3, first, the movable pulley 81 is assembled to the messenger wire 50.

  Next, the messenger wire 50 is passed between the cable hanger body 20 and the straddling portion 31 of the twist-prevention type coiled cable hanger 10 and locked to the utility pole 5. As a result, the cable hanger body 20 is in a state of being tightly wound and being inserted through the messenger wire 50 into a region a formed by the inner side 22 and the straddling portion 31.

  Next, the cable 60 is inserted into the inner side 22 of the virtual cylinder formed by the cable hanger body 20 through the pulley 80 attached to the utility pole 5. As a result, the cable 60 is located in the region b of the cable hanger body 20.

  Next, the distal end of the guide rope 61, the one end portion 28 of the cable hanger body 20, and the distal end of the cable 60 are temporarily fixed to the movable pulley 81.

  Next, the other end portion 29 of the cable hanger body 20 is assembled to the messenger wire 50 by the fastener 51 so as not to be relatively movable. As a result, the cable hanger body 20 does not move relative to the messenger wire 50.

  Next, as shown in FIG. 4, the guide rope is pulled toward the adjacent utility pole 5. As a result, the movable pulley 81, and thus the one end 28 of the cable hanger body 20 and the tip of the cable 60 move to the adjacent utility pole 5.

  Thereby, the cable hanger body 20 in a tightly wound state is stretched in the direction in which the messenger wire 50 extends to form a spiral shape along the side surface of the virtual cylinder extending in parallel to the messenger wire, The cable is placed inside the target cylinder.

  Further, as shown in FIG. 5, the straddling portion 31 is configured so that the portion P where the cable hanger body 20 contacts the messenger wire 50 does not move in the direction X in which the cable hanger body 20 extends, and the direction in which the messenger wire 50 extends. The messenger wire 50 is locked so that the position P can be moved in Y.

  And the one end part 28 of the cable hanger main body 20 is assembled | attached to the messenger wire 50 so that relative movement is impossible using the fastener 51. FIG. Further, the tip of the cable 60 is attached to the adjacent utility pole 5.

  The twist-prevention type coiled cable hanger 10 thus installed supports the messenger wire 50 with the cable 60 installed along the messenger wire 50.

  Further, the straddling portion 31 is moved so that the position P where the cable hanger body 20 contacts the messenger wire 50 does not move in the direction X in which the cable hanger body 20 extends, and the position P moves in the direction Y in which the messenger wire 50 extends. Since the messenger wire 50 is locked so as to be possible, even if a force that rotates around the messenger wire 50 acts on the twisted coiled cable hanger 10 due to strong winds such as typhoons and storms, the twist preventing type The coiled cable hanger 10 is not twisted back.

  6 and 7, the torsion prevention type coiled cable hanger 10a includes a cable hanger body 20 and a plurality of wire sliding prevention portions 30a.

  As shown in FIG. 6, each wire sliding prevention part 30a has a ring-shaped part 32 through which the messenger wire 50 is passed. As shown in FIG. 7, the ring-shaped portion 32 is located outside the virtual cylinder C. The ring-shaped parts 32 are formed at a predetermined interval so as to be at the same position (upward in FIG. 7) when viewed from the extending direction of the virtual cylinder C.

  The ring-shaped portion 32 is formed integrally with the cable hanger body 20 so as to protrude outside the virtual cylinder C formed by the cable hanger body 20 so that the cable hanger body 20 is suspended from the messenger wire 50. Has been. Therefore, the messenger wire 50 is positioned so as to contact the inside of the region a formed by the ring-shaped portion 32 when viewed from the extending direction of the virtual cylinder C.

  Further, the cable 60 is positioned so as to come into contact with a region b that is a range of the inner side 22 of the cable hanger body 20 when viewed from the extending direction of the virtual cylinder C.

  Therefore, the twist-prevention type coiled cable hanger 10a includes a plurality of rings for locking the messenger wire 50 so that the portion P where the cable hanger body 20 contacts the messenger wire 50 does not move in the extending direction X of the cable hanger body 20. The twisted coiled cable hanger 10a is not twisted back even if a force that turns around the messenger wire 50 acts on the twisted coiled cable hanger 10a due to strong wind.

  Referring to FIGS. 8 and 9, the twist-prevention type coiled cable hanger 10b includes a cable hanger body 20 and a plurality of wire sliding prevention portions 30b.

  As shown in FIG. 8, each wire sliding prevention part 30b has the through-hole 33 through which the steel wire (thin wire) 50a is passed. As shown in FIG. 9, the through hole 33 is located outside the virtual cylinder C. The through holes 33 are formed at a predetermined interval so as to be at the same position (upward in FIG. 9) when viewed from the extending direction of the virtual cylinder C.

  The through hole 33 is formed in the cable hanger body 20 so that the cable hanger body 20 is suspended from the steel wire 50a. Therefore, the steel wire 50 a is positioned so as to contact the inside of the region a formed by the through hole 33 when viewed from the extending direction of the virtual cylinder C.

  Further, the cable 60 is positioned so as to come into contact with a region b that is a range of the inner side 22 of the cable hanger body 20 when viewed from the extending direction of the virtual cylinder C. In the illustrated example, a messenger wire 50 is disposed in a region b that is within the inner side 22 of the cable hanger body 20, approaching the steel wire 50 a below the steel wire 50 a.

  Therefore, the twist-prevention type coiled cable hanger 10b has a plurality of penetrations for locking the steel wire 50a so that the location P where the cable hanger body 20 contacts the steel wire 50a does not move in the direction X in which the cable hanger body 20 extends. Since the hole 33 is provided, even if a force around the steel wire 50a acts on the twist-prevention type coiled cable hanger 10b due to strong wind, the twist-prevention type coiled cable hanger 10b does not twist back.

  Referring to FIGS. 10 and 11, the twist-prevention type coiled cable hanger 10 c includes a cable hanger body 20 and a plurality of wire sliding prevention portions 70. As shown in FIG. 10, the wire sliding prevention part 70 has a locking part 71 having a U-shape attached to the cable hanger body 20 and a locking part 72 that closes both ends of the locking part 71. . Both ends of the locking portion 71 are fixed to the cable hanger body 20 by the lock portion 72. Therefore, the wire sliding prevention part 70 can be attached to the cable hanger body 20 after the cable hanger body 20 is installed on the messenger wire 50.

  As shown in FIG. 11, each wire sliding prevention part 70 is seen from the extending direction of the virtual cylinder C, and a pair of opposed cable hanger bodies 20 are opposed to each other so as to cross between the messenger wire 50 and the cable 60. Since the locations L and M have the locking portions 71 whose both ends are fixed by the locking portions 72, the region a where the messenger wire 50 is disposed and the region b where the cables 60 are disposed are It is surely partitioned.

  Accordingly, the twist-prevention type coiled cable hanger 10c includes a plurality of wire slides for locking the messenger wire 50 so that the portion P where the cable hanger body 20 contacts the messenger wire 50 does not move in the direction in which the cable hanger body 20 extends. Since the movement preventing portion 70 is provided, even if a force that rotates around the messenger wire 50 acts on the twist-prevention type coiled cable hanger 10c due to strong winds such as typhoons or storms, the twist-prevention type coiled cable hanger 10c is twisted. There is no return. In the above-described embodiment, the messenger wire 50 or the steel wire 50a is a wire.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. Various modifications or improvements can be added to the above embodiment. Further, it is apparent from the scope of the claims that embodiments with such changes or improvements can also be included in the technical scope of the present invention.

1 is an external perspective view of a twist-prevention type coiled cable hanger according to the present invention. It is an external appearance side view of the twist prevention type coiled cable hanger shown in FIG. It is an external appearance perspective view for demonstrating the installation method of the twist prevention type coiled cable hanger shown in FIG. It is an external appearance perspective view for demonstrating the installation method of the twist prevention type coiled cable hanger following FIG. It is an external appearance perspective view for demonstrating the installation method of the twist prevention type coiled cable hanger following FIG. It is an external appearance perspective view of another twist prevention type coiled cable hanger which concerns on this invention. It is an external appearance side view of the twist prevention type coiled cable hanger shown in FIG. It is an external appearance perspective view of another twist prevention type coiled cable hanger which concerns on this invention. It is an external appearance side view of the twist prevention type coiled cable hanger shown in FIG. It is an external appearance perspective view of another twist prevention type coiled cable hanger which concerns on this invention. It is an external appearance side view of the twist prevention type coiled cable hanger shown in FIG. It is an external appearance perspective view of the coiled cable hanger of a prior art. It is an external appearance perspective view which shows the state which the coiled cable hanger shown in FIG. 12 hung.

Explanation of symbols

C Virtual cylinder 10, 10 a, 10 b, 10 c Twisting prevention type coiled cable hanger 20 Cable hanger body 22 Inside 28 One end 29 Other end 30, 30 a, 30 b Wire sliding prevention part 31 Stretching part 32 Ring-like part 33 Through Hole 50 Messenger wire 50a Steel wire 51 Fastener 60 Cable 61 Guide rope 70 Wire sliding prevention part 71 Locking part 72 Locking part 80 Pulley 81 Moving pulley

Claims (5)

A cable hanger for supporting a cable constructed along a wire extending between a pair of supports on the wire,
A cable hanger body extending spirally along the side of a virtual cylinder extending parallel to the wire, and the cable hanger body disposing the cable hanger inside the virtual cylinder;
A plurality of wire sliding prevention portions formed at predetermined intervals on the cable hanger body, and
The plurality of wire sliding prevention portions are configured such that a portion where the cable hanger body contacts the wire does not move in the direction in which the cable hanger body extends, and the portion can move in the direction in which the wire extends. And a twist-prevention type coiled cable hanger for locking the wire.   The twist preventing type coiled cable hanger according to claim 1, wherein each wire sliding preventing part has a rod-shaped straddling part integrally connected to the cable hanger body so as to straddle the wire.   The twist preventing type coiled cable hanger according to claim 1, wherein each wire sliding preventing part has a ring-shaped part through which the wire is passed.   The twist prevention type coiled cable hanger according to claim 1, wherein each wire sliding prevention part is a through hole formed at a predetermined position of the cable hanger body. Each wire sliding prevention part is a locking part attached to a pair of opposing portions of the cable hanger body so as to cross between the wire and the cable hanger as seen from the extending direction of the virtual cylinder. The twist-prevention type coiled cable hanger according to claim 1, comprising:

Images