JP4865468B2 - Cable spacer and holder detachable from the spacer - Google Patents

Description

  The present invention relates to a cable spacer for fixing a cable such as an optical cable to a support such as a hanging line, and a holder detachable from the spacer for holding a branch cable.

Conventionally, a cable spacer for stabilizing a cable by fixing a cable such as an optical cable extending between columns to a support such as a hanging line extending between the columns is well known. For example, the website of Thomas & Betts (http://www.tnb.com/ps/pubint/) describes this type of cable spacer that is used with a fastening strap. Further, this type of cable spacer used together with a fastening strap is also described in the homepage (http://www.hellermanntyon.co.jp) of Heraman Tighton Co., Ltd.
http: // www. tnb. com / ps / pubint / http: // www. hellmanntyton. co. jp

  The conventional cable spacer is used to fix one cable to one support. However, when the cable is multi-core and a plurality of branch cables are branched from the cable, there are cases where it is desired to fix the cables and the branch cables to the suspension line and stabilize them. The conventional spacer cannot quickly meet the need in such a case.

  Therefore, the present invention has an object to improve a conventional spacer for fixing a multi-core cable to a support so that a plurality of branch cables can be fixed.

In order to solve the above problems, the present invention is directed to a pressure contact surface for a cable having a circular cross section and extending horizontally, and a pressure contact surface for a support body having a circular cross section parallel to the cable. And fixing the cable to the support body under the cooperative action of a fastening strap interposed between the cable and the support body and hung around the cable and the support body. And a spacer for a cable to which a holder for holding a branch cable from the cable can be attached and detached .

In this spacer, the present invention is characterized as follows. The spacer includes a shaft portion that extends in parallel with the cable, and opposed end wall portions that are formed at both ends of the shaft portion so as to extend radially outward of the shaft portion perpendicular to the shaft portion. The opposed end wall portion has an inner surface facing each other in the axial direction of the shaft portion, an outer surface that is the opposite surface of the inner surface, and a circumferential surface interposed between the inner surface and the outer surface. The peripheral surface includes a horizontal top surface portion and a bottom surface portion that extend in a direction orthogonal to the shaft portion and are spaced apart and parallel to each other via the shaft portion in the vertical direction, and are orthogonal to the shaft portion. A pair of vertical side surfaces extending in the direction and parallel to and spaced apart from each other via the shaft portion in the horizontal direction are included. The top surface portion and the bottom surface portion are formed with V-shaped grooves that can receive either the cable or the support in parallel with the shaft portion. Each of the pressure contact surfaces is provided. In each of the inner surfaces facing each other, a groove extending horizontally from the side surface portion toward the shaft portion is formed so as to face each other in the axial direction. The groove, there is the width direction of the cross section draw a U-shape, the inner ends of the grooves of the U-shaped have through holes are formed leading to said and said inner surface an outer surface, said groove The holder can be attached by inserting an elastic arm formed on the holder and snap-engaging a hook formed on the elastic arm into the through hole.

  In one preferred embodiment of the present invention, a pair of U-shaped grooves and the through holes are formed in each of the opposed end wall portions so as to be symmetrical with respect to the shaft portion.

  In one of the preferred embodiments of the present invention, one of the top surface portion and the bottom surface portion is formed with a protrusion extending vertically, and the other is vertically extending complementarily with the protrusion. A recess is formed, and the two spacers can be stacked in a state where the protrusion of one spacer is fitted to the recess of the other spacer.

In one preferred embodiment of the invention, the holder is attached to the spacer, under elastic deformation of the said axial direction with each other oppositely and the U-shaped groove into each of the said opposite end walls a insertable, and a pair of resilient arms that are spaced apart from each other in the axial direction is possible ingress hook formed to the through hole in the insertion tip, said branch cable extend to the axial direction and a can be inserted formed retention groove for the branch cable.

  In one of preferred embodiments of the present invention, the holder has a plate-like body portion, the elastic arm is formed on one surface of the plate-like body portion, and the holding groove is formed on the opposite surface of the one surface. Is formed.

In one other preferred embodiment of the invention, the retainer cap is formed integrally to said holding groove capable of preventing the falling off from the holding groove of the branch cable which is inserted in the holding groove It is what .

  In the cable spacer according to the present invention, the cable and the support are disposed in a V-shaped groove formed in the top surface portion and the bottom surface portion of the opposed end wall portion with the cable spacer interposed between the cable and the support body. And then the cable can be secured to the support by hanging a tightening strap around the cable and the support. For the U-shaped groove formed on the inner surface of each opposed end wall of the spacer, a pair of elastic arms is formed on the holder for holding the branch cable, and this elastic arm is inserted. When the hook provided at the tip of the elastic arm is engaged with the through hole formed in the inner end of the groove, the holder can be attached to the spacer, and at the same time via the holder The branch cable can be indirectly fixed to the support.

  In the present invention in which the U-shaped groove and the through hole are formed symmetrically with respect to the shaft portion in each of the opposed end wall portions, the attachment position of the holder with respect to the spacer can be selected.

  In this aspect of the invention in which a projection and a concave portion complementary to the projection are formed on the top surface portion and the bottom surface portion of the opposed end wall portion, the projection and the concave portion are fitted between a plurality of spacers. By doing so, the spacers can be stacked in a stable state.

  The effects of other aspects of the present invention will be described in detail in the following description.

  The details of the cable spacer according to the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a perspective view of the cable spacer 1 in a state of being interposed between the optical cable 2 and the rod 4 . In the figure, a multi-core optical cable 2 extending horizontally from the right to the left enters the closure 3. From the closure 3 the support der Ru rod 4 extends out horizontally to the right of the present invention, suspension wire (figure in which the rod 4 extends between a utility pole (not shown) extends vertically upward (Not shown). The spacer 1 is interposed between the optical cable 2 and the rod 4 each having a circular cross section, and the optical cable 2 and the rod 4 are fastened to the spacer by a strap 6 wound around them. By doing so, the optical cable 2 is fixed to the rod 4 in a stable state.

  FIG. 2 is a partially broken perspective view of the spacer 1. The spacer 1 has a shaft portion 10 that extends horizontally in parallel with the optical cable 2, and a vertical first facing that extends outward in the radial direction of the shaft portion 10 at both ends of the shaft portion 10 and faces each other in the axial direction of the shaft portion 10. It has an end wall portion 11 and a second opposing end wall portion 12. The first and second opposing end wall portions 11 and 12 have inner surfaces 21 and 22 that face each other in the axial direction, and outer surfaces 23 and 24 that are opposite to the inner surfaces 21 and 22. A peripheral surface 51 is interposed therebetween, and a peripheral surface 52 is interposed between the inner surface 22 and the outer surface 24. The peripheral surfaces 51 and 52 have a pair of side surfaces having top surface portions 13 and 14 and bottom surface portions 15 and 16 extending horizontally in a direction orthogonal to the shaft portion 10 and extending vertically in a direction orthogonal to the shaft portion 10. It has portions 17a, 17b and 18a, 18b. V-shaped grooves 25, 26 are formed on the top surface portions 13, 14, and inverted V-shaped grooves 27, 28 are formed on the bottom surface portions 15, 16, and these grooves 25, 26, The V-shaped valley bottoms 27 and 28 substantially coincide with the center line CC of the shaft portion 10, and the V-shaped inclined surface provides a pressure contact surface between the rod 4 and the optical cable 2 (see FIG. 1). . A pair of vertical cylindrical protrusions 31a, 31b and 32a, 32b are formed on the top surface portions 13 and 14, respectively. Complementary cylindrical recesses 33a, 33b and 34a, 34b into which the protrusions 31a, 31b, 32a, 32b can be fitted are formed on the bottom surface portions 15 and 16 (see FIG. 3). ).

  In FIG. 2, on the inner surface 21 of the first opposing end wall portion 11, U-shaped grooves 37 a and 37 b extend horizontally from the side portions 17 a and 17 b toward the shaft portion 10. In addition, on the inner surface 22 of the second opposing end wall portion 12, U-shaped grooves 38 a and 38 b extend horizontally from the side surface portions 18 a and 18 b toward the shaft portion 10. The grooves 37a and 38a and the grooves 37b and 38b face each other in the axial direction. Rectangular through holes 41a and 41b connected to the inner surface 21 and the outer surface 23 of the first opposing end wall portion 11 are formed at the inner end portions of the grooves 37a and 37b, and the inner end portions of the grooves 38a and 38b, respectively. Are formed with rectangular through holes 42 a and 42 b that connect to the inner surface 22 and the outer surface 24 of the second opposing end wall portion 12. A strap insertion hole 43 is formed in the shaft portion 10. Although not shown, two or more insertion holes 43 can be formed so as to be arranged side by side in the axial direction. Further, the plurality of insertion holes 43 can be made symmetrical in the radial direction of the shaft portion 10.

  When the spacer 1 thus formed is used in the mode of FIG. 1, the groove 27 of the bottom surface portion 15 and the groove 28 of the bottom surface portion 16 are brought into contact with the peripheral surface of the optical cable 2, and the groove 25 of the top surface portion 13 The groove 26 of the top surface portion 14 is brought into contact with the peripheral surface of the rod 4, and the strap 6 passed through the insertion hole 43 is hung around the optical cable 2 and the rod 4 and tightened strongly toward the peripheral surface of the shaft portion 10. .

  FIG. 3 is a side view of the spacer 1, and the spacer 1 stacked on the spacer 2 is indicated by an imaginary line. In each of these spacers 1, the protrusions 31 a, 31 b, 32 a, and 32 b formed on the top surface portions 13 and 14 can be separated into the concave portions 33 a, 33 b, 34 a, and 34 b formed on the bottom surface portions 15 and 16. As a result of the fitting, the overlapping of the spacers 1 is maintained. However, in FIG. 3, the protrusion 31b is located behind the protrusion 31a, and the protrusion 32b is located behind the protrusion 32a. The recess 33b is located behind the recess 33a, and the recess 34b is located behind the recess 34a. When the distance between the optical cable 2 and the rod 4 is large, a plurality of spacers 1 stacked in this way can be used.

FIG. 4 is a view similar to FIG. 1 showing an example of how the spacer 1 is used . A holder 62 for holding branch cables 61a and 61b (see FIG. 1) branched from the optical cable 2 is attached to the spacer 1 in the mode of FIG. The multi-core optical cable 2 that has entered the closure 3 is branched into a plurality of branch cables inside the closure 3. For example, the branch cables 61a and 61b extend from the closure 3 to the right in the figure and are held. It is guided to the tool 62. The branch cables 61 a and 61 b are held in parallel by the holder 62 and are indirectly fixed to the rod 4 via the holder 62 and the spacer 1. The holder 62 includes a plurality of holding grooves 63 through which the branch cables 61 a and 61 b are inserted, and a lid 64 for preventing the branch cables 61 a and 61 b from dropping off from the holding groove 63. In the drawing, the lid 64 in the opened state is indicated by a virtual line.

  FIG. 5 is a perspective view of the holder 62 with the lid 64 open. The holder 62 has a rectangular plate-like body portion 66, and a pair of elastic arms 71 and 72 are directed to the grooves 37 a and 38 a of the spacer 1 on the surface 67 where the plate-like body portion 66 faces the spacer 1. It extends horizontally (see FIG. 2). Hooks 73 and 74 are formed at the ends of the elastic arms 71 and 72, respectively. In the axial direction of the spacer 1, the dimension A between the hooks 73 and 74 is slightly larger than the distance a (see FIG. 2) between the grooves 37a and 38a, and the width B of the hooks 73 and 74 is the groove. Since the hooks 73 and 74 are inserted into the grooves 37 a and 38 a, the elastic arms 71 and 72 are elastically deformed so as to approach each other in the axial direction of the spacer 1. When inserted further deeply, the hooks 73 and 74 are snap-engaged with the through holes 41a and 42a formed in the spacer 1, and the holder 62 is attached to the spacer 1 as shown in FIG. A holding groove 63 extending in the axial direction of the spacer 1 is formed on the surface 68 of the plate-like body portion 66 opposite to the surface 67. The holding groove 63 includes a groove extending straight in the axial direction and a groove extending slightly downward in the figure, and can be selectively used depending on the properties of the branch cables 61a and 61b. The curved holding groove 63 provides an effect of preventing the branching cable inserted therethrough from falling off.

  A lid 64 is integrally formed below the plate-like body portion 66 via a flexible connecting portion 76. Hook portions 77a and 77b are formed on the inner surface of the lid 64, and when the lid 64 is closed, the hook portions 77a and 77b are detached into engagement holes 78a and 78b formed at required portions of the plate-like body portion 66. Engage possible.

  The holder 62 formed in this way and attached to the spacer 1 inserts the branch cables 61a and 61b into the holding grooves 63, so that the branch cables 61a and 61b are neatly and reliably attached to the rod 4. Can be fixed. Further, in order to remove the holder 62 from the spacer 1, a tool such as a screwdriver is inserted into the through holes 41 a and 42 a in the spacer 1 from the outer surfaces 23 and 24 side of the first and second opposing end wall portions 11 and 12. The hooks 73 and 74 in the holder 62 are pushed, the elastic arms 71 and 72 are elastically deformed, and the hooks 73 and 74 are detached from the through holes 41a and 42a. According to such a spacer 1, the holder 62 can be easily attached to and detached from the spacer 1.

  The spacer 1 and the holder 62 in this invention can be obtained by injection molding a thermoplastic synthetic resin.

  According to the present invention, it is possible to manufacture a cable spacer that can easily fix a cable such as an optical cable and a branch cable from the cable to a support.

The perspective view of the spacer for cables in use condition. The fragmentary broken perspective view of the spacer for cables. The side view of the spacer for cables stacked. The figure which shows an example of the usage condition of the spacer for cables. The perspective view of a holder.

1 Cable spacer 2 Cable 4 Support (rod)
6 Strap 10 Shaft 11 Opposite End Wall 12 Opposite End Wall 13 Top Surface Part 14 Top Surface Part 15 Bottom Surface Part 16 Bottom Surface Part 17a, 17b Side Surface Part 18a, 18b Side Surface Part 21 Inner Surface 22 Inner Surface 23 Outer Surface 24 Outer Surface 25 V-shaped Groove 26 V-shaped groove 27 V-shaped groove 28 V-shaped groove 31a, 31b Protrusion 32a, 32b Protrusion 33a, 33b Recess 34a, 34b Recess 37a, 37b U-shaped groove 38a, 38b U-shaped groove 41a , 41b Through hole 42a, 42b Through hole 61a, 61b Branch cable 62 Holder 63 Holding groove 64 Lid 71 Elastic arm 72 Elastic arm 73 Hook 74 Hook

Claims (6)

A pressure contact surface for a cable having a circular cross section and extending horizontally, and a pressure contact surface for a support body having a circular cross section parallel to the cable, and interposed between the cable and the support body. The cable can be fixed to the support body under the cooperative action of the fastening strap that is hung around the cable and the support body, and the cable is held to hold the branch cable from the cable. A cable spacer from which a tool can be attached and removed ,
The spacer includes a shaft portion extending in parallel with the cable, and opposed end wall portions formed so as to extend outward in the radial direction of the shaft portion at right ends of the shaft portion at both ends of the shaft portion. ,
The opposed end wall portion has an inner surface facing each other in the axial direction of the shaft portion, an outer surface opposite to the inner surface, and a peripheral surface interposed between the inner surface and the outer surface,
The peripheral surface includes a horizontal top surface portion and a bottom surface portion that extend in a direction orthogonal to the shaft portion and are spaced apart and parallel to each other via the shaft portion in the vertical direction, and are orthogonal to the shaft portion. A pair of vertical side surfaces extending in the direction and parallel to each other via the shaft portion in the horizontal direction,
The top surface portion and the bottom surface portion are formed with V-shaped grooves that can receive either the cable or the support in parallel with the shaft portion. Each of the pressure contact surfaces is provided,
In each of the inner surfaces facing each other, a groove extending horizontally from the side surface portion toward the shaft portion is formed so as to face each other in the axial direction, and the groove has a U-shaped cross-sectional shape in the width direction. A through hole connected to the inner surface and the outer surface is formed at the inner end of the U-shaped groove, and an elastic arm formed on the holder is inserted into the groove. The spacer can be attached to the through hole by snap-engaging a hook formed on the elastic arm .   The spacer according to claim 1, wherein a pair of the U-shaped groove and the through hole are formed in each of the opposed end wall portions so as to be symmetrical with respect to the shaft portion.   One of the top surface portion and the bottom surface portion is formed with a vertically extending protrusion, and the other is formed with a recessed portion that extends perpendicularly in a complementary manner with the protrusion. The spacer according to claim 1, wherein the spacer can be stacked in a state in which the protrusion of one spacer and the recess of the other spacer are fitted. The holder is attached to the spacer, there can be inserted the opposing end the call are opposed to each other in the wall-shaped channel to the respective under elastic deformation of the said axis, the insertion tip A pair of elastic arms that are formed with hooks that can enter the through-holes and are spaced apart from each other in the axial direction, and the branch cable that extends in the axial direction and can be inserted into the branch cable. The spacer according to claim 1 , further comprising a holding groove . The spacer according to claim 4, wherein the holder has a plate-like body portion, the elastic arm is formed on one surface of the plate-like body portion, and the holding groove is formed on the opposite surface of the one surface . The holder, the lid with respect to the retaining groove capable of preventing the falling off from the holding groove is being formed integrally with claim 4 or 5 spacers according of the branch cable which is inserted in the holding groove .

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