JP4837447B2 - Helical cable hanger support wire fixing bracket - Google Patents

Description

  The present invention provides a stable installation state of a helical cable hanger (consisting of a spiral-like casing) wound around a support line (so-called messenger wire or self-supporting cable) installed between utility poles to support a cable. For the purpose of maintenance, the present invention generally relates to a support wire fixing bracket of a spiral cable hanger used to fix an end portion of the end portion to the support wire.

  It is composed of a pair of clamping pieces, and a support wire is engaged with one of the engaging grooves provided on the opposing surface side of the clamping piece, and the other helical cable hanger is engaged with each other. There is a structure that is tightened by (for example, Patent Document 1).

Japanese Patent No. 318183

  Since the conventional example employs a configuration in which the hanger and the support wire positioned in the crossing direction are clamped by a pair of clamping pieces, the helical cable hanger is fixed to the support wire. The hanger is not suitable as a means for fixing the hanger to the support line portion of the daruma-type self-supporting cable. To fix the spiral cable hanger to the self-supporting cable, a separate metal fitting must be prepared.

  The present invention provides a support wire fixing bracket for a cable spiral hanger suitable for fixing a spiral cable hanger wound and supported on a self-supporting cable to the self-supporting cable (support wire portion thereof). It was created for the purpose.

A bolt and a pair of holding pieces that Soo clamping by the support wire is tightened by a nut engaged with the engaging groove of the lower end, and by penetrating the bolt on the outside of one of the該挟supporting pieces said one clamping piece comprising a clamping piece for clamping the spiral cable hanger, the upper end of the clamping piece, the notch of the L-shaped overlapping with the one clamping piece arranged to engage the spiral cable hanger to the notch, the clamping piece And the one sandwiching piece .

  According to the present invention, since the support wire is sandwiched and attached to the support wire by the pair of sandwiching pieces, it can be attached to the support wire constituting the self-supporting cable without any inconvenience. Since it is sufficient to tighten with a single bolt and nut, the structure is simple and an inexpensive product can be provided.

  The drawings show an embodiment of the support wire fixing bracket of the helical cable hanger according to the present invention, FIG. 1 is a front view showing a use state, FIG. 2 is a partially enlarged view of FIG. 1, and FIG. FIG. 4 is a side view of FIG. 3, FIG. 5 is a plan view of the fixture, and FIG. 6 is a plan view of the fixture.

  The support wire fixing bracket A of the helical cable hanger according to the present invention is formed by tightening the first and second pair of sandwiching pieces 1 and 2 and the fastening piece 3 with the bolt 4 and the nut 5 screwed to the support piece. The spiral hanger h (generally, the end portion) is clamped between the first clamping piece 1 and the fastening piece 3 while the Ca is attached to the support line Ca so as to clamp Ca. It is used for fixing to the support line Ca.

The first sandwiching piece 1 is composed of an L-shaped frame body composed of a rectangular plate-like main body piece 1a and an abutting piece 1b formed by bending the upper end of the main body piece 1a substantially at a right angle. A through hole 6 through which the bolt 4 passes is provided in the center of the piece 1a, and an engagement groove 7 for the support line Ca is provided on one surface of the lower end of the main piece 1a on the abutting piece 1b side. It was
The second sandwiching piece 2 has a rectangular plate-like main body piece 2a that is substantially the same size as the main body piece 1a of the first sandwiching piece 1 and an upper side of one end of the main body piece 2a. A latching notch 10 is provided at the center of the other side end of the main body piece 2a corresponding to the one side end, and the main body piece 2a In the center, there is provided a through hole 8 through which the bolt 4 passes in correspondence with the through hole 6 on the first holding piece 1 side, and the engagement on the first holding piece 1 side on one side of the lower end portion of the main body piece 1a. An engaging groove 9 is provided so as to face the mating groove 7 and engage the support line Ca.

  The fastening piece 3 is composed of an L-shaped frame composed of a main body piece 3a and a reinforcing portion 3b that is formed by bending the lower end of the main body piece 3a substantially at a right angle, and is slightly above the upper end of the main body piece 3a. An L-shaped notch 12 is provided to form the main body piece 3a with a rectangular plate-shaped main body 3a ′ and a tightening portion 3a ″ projecting in a hook shape from one end of the main body 3a ′. A square hole 14 corresponding to each of the through-holes 6 and 8 is provided in the center of the main body portion 3a ′, while the locking notch 10 is provided in the center of the other side end corresponding to the one side end of the main body piece 3a. The protrusion 15 to be locked is provided, and one side of the tightening portion 3a ″ is bent into a generally U shape and is used adjacent to the second sandwiching piece 2 so as to overlap.

  Then, the first and second sandwiching pieces 1 and 2 are opposed to each other, the fastening piece 3 is overlaid on the outer side of the second sandwiching piece 2, and each of the through holes 6, 8 or the square holes 14 provided therein is square. The bolt 4 is penetrated from the hole 14 side (clamping piece 3 side), the nut 5 is screwed to the tip of the bolt 4 protruding from the through hole 6, and the pieces 1, 2, and 3 are combined with each other, and this combined state Then, the clamping pieces 1 and 2 are combined with the support line Ca so that the support lines Ca are engaged with the engagement grooves 7 and 9, and the helical cable hanger h supported by the support line Ca is tightened. When the nut 5 is tightened so as to be interposed between the clamping part 2b and the fastening part 3a ″ through the notch 12 of 3 (at this time, the protrusion 15 on the fastening part 3 side is connected to the second clamping part 2 side). The locking notch 10 is fitted and locked to prevent lateral displacement of the tightening piece 3 due to the tightening load. The support wire fixing bracket A of the embodiment is attached to the support wire Ca so as to hold the support wire Ca between the first and second holding pieces 1 and 2, and the second holding piece 2 The helical cable hanger h is clamped by the (clamping part piece 2b) and the fastening piece 3 (clamping part 3a ″) to fix the hanger h to the support line Ca.

  The drawing shows an example of use in which a spiral hanger h is fixed to a support line Ca part that comprises a self-supporting type (dharma type) cable C and a cable part Cb, but a support line (messenger) for supporting the cable exclusively. The fixing bracket A can also be applied when the hanger h is fixed to the wire.

  Also, the bolt 4 is a so-called square root bolt, and the square root portion engages with the square hole 14 to prevent co-rotation with the nut 5.

The front view which shows a use condition. The partially expanded view of FIG. FIG. 3 is a partially cutaway plan view of FIG. 2. FIG. 4 is a side view of FIG. 3. The top view of a fixing tool. The top view of a fixing tool.

Explanation of symbols

1, 2 Clamping piece 3 Clamping piece 4 Bolt 5 Nut 12 Notch Ca Support wire h Spiral cable hanger

Claims (1)

A bolt and a pair of holding pieces that Soo clamping by the support wire is tightened by a nut engaged with the engaging groove of the lower end, and by penetrating the bolt on the outside of one of the該挟supporting pieces said one clamping piece comprising a clamping piece for clamping the spiral cable hanger, the upper end of the clamping piece, the notch of the L-shaped overlapping with the one clamping piece arranged to engage the spiral cable hanger to the notch, the clamping piece And a supporting wire fixture for a helical cable hanger , which is interposed between the holding piece and the one holding piece .

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