JP3380210B2 - Fixture for power or communication cable - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power or communication cable fixture for supporting and fixing a power or communication cable to a support structure or the like.

[0002]

2. Description of the Related Art Conventionally, for example, in order to fix a communication cable along a pillar of a steel tower, a fixing tool for the communication cable is attached to the pillar of the steel tower, and the communication cable is supported and fixed to the fixing tool for the communication cable. ing. Therefore, the fixing device for communication cables is, for example, a pair of washers in which a fixing bolt extending horizontally from a support of a steel tower is provided with a clamp portion that is bent at both ends through a plurality of nuts and holds and fixes the communication cable. The worker mounts the nuts and washers on the fixing bolts projecting at predetermined intervals while climbing the support pillars to support and fix the communication cable.

[0003]

However, since the nuts used for the communication cable fixing tool are comparatively heavy and the fixing bolts are innumerable, a large number of nuts including washers are used to climb the column. This is extremely severe for workers. Therefore, if the number of nuts including washers that can be carried at one time is reduced, the number of climbs increases, the work time is long, and the washer must be attached by screwing a plurality of nuts, resulting in poor work efficiency. Moreover,
Since it is a work at a high place, carrying a heavy object is very dangerous. Therefore, improvement of work efficiency and safety in supporting and fixing the communication cable is strongly demanded.

Therefore, the present invention has been made to solve the above-mentioned problems, and it is made of synthetic resin and has a simple structure so that an electric power or communication cable can be easily supported and fixed, thereby supporting and fixing the electric power or communication cable. It is an object of the present invention to provide a fixture for electric power or a communication cable that can be easily worked, and can be shortened in working time, and can improve working efficiency and safety.

[0005]

To achieve the above object, a power or communication cable fixture according to the present invention comprises a pair of holding members for holding and fixing the power or communication cable from both sides thereof. Retaining recesses each having a semicircular cross section are formed on each of the sandwiching members so as to be fitted to the facing surfaces thereof and the respective half portions of the power or communication cable are respectively inserted therein. An insertion hole through which the fixing bolt is inserted is provided, and a bolt insertion groove that communicates with the insertion hole along the holding recess and reaches an outer edge is formed on one side of the insertion hole. At the edge, a support piece portion is provided along the facing surface, and each support piece portion is provided with an engagement piece portion that can be engaged with a support piece portion that bends inward and is in contact with each other. Part and engaging piece part match Projection and recess to be engaged are provided respectively, consist configuration the support piece by sliding and along the Ryokyogi member in the holding recess together has to be engaged with the engaging piece.

Further, it is composed of a pair of sandwiching members for sandwiching and fixing the power or communication cable from both sides thereof, and each sandwiching member is matched with its opposing surface and half of the power or communication cable is provided. Retaining recesses each having a semi-circular cross section to be fitted are formed, and an insertion hole for inserting a fixing bolt for tightening both the sandwiching members that match is formed through, and one side thereof is provided along the retaining recess. Bolt insertion grooves that communicate with the insertion holes and reach the outer end edges are formed, and support piece portions are extended along opposite surfaces at both end edges of each of the sandwiching members and one support piece portion is provided. An engaging piece that is bent inward and is engageable with a supporting piece that is in contact with the engaging piece is provided.
Further, protrusions and recesses that engage in a matched state are provided on the opposing surfaces of the support piece portion and the engagement piece portion, respectively, and the support piece is formed by sliding both sandwiching members along the holding concave portion. The part is configured to be engaged with the engaging piece part.

Further, it comprises a pair of sandwiching members for sandwiching and fixing the power or communication cable from both sides thereof. Retaining recesses each having a semicircular cross section to be fitted are formed, and projections and recesses that engage with each other in a matched state are provided, respectively, and a fixing bolt for tightening both matched sandwiching members is inserted. Holes are formed through the support members, and support piece portions are provided on both side edges of each of the sandwiching members along the opposing surfaces, and support piece portions that are bent inward and are in contact with each other are engaged with each other. Is provided, and the supporting piece is engaged with the engaging piece by sliding both sandwiching members along the holding recess.

In any of the above cases, it is preferable to provide a plurality of parallel reinforcing ribs on the outer peripheral surface of the sandwiching member along the direction orthogonal to the holding recess.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a power or communication cable fixture according to the present invention will be described below with reference to the drawings. In the present invention, the case where the communication cable is fixed will be described, but it goes without saying that the case where the power cable is fixed is also applicable. 1 is an exploded perspective view of a fixture for electric power or communication cable, FIG. 2 is a front view of a sandwiching member, FIG. 3 is a rear view of the sandwiching member, FIG. 4 is a sectional view taken along line XX of FIG. FIG. 3 is a sectional view taken along line YY of FIG. The power or communication cable fixture A includes a pair of clamping members 1a, 1a for clamping and fixing a communication cable W described below from both sides thereof.
It consists of b. Each sandwiching member 1a, 1b is molded from a hard synthetic resin and has the same shape. And
As shown in FIG. 1, the two sandwiching members 1a and 1b are arranged side by side, and one sandwiching member, for example, the sandwiching member 1b is turned upside down so as to be symmetrical with respect to each other. Therefore, for the sake of convenience, one sandwiching member 1a will be described.

The sandwiching member 1a has a flat mating surface 2 which coincides with the front surface of the sandwiching member 1b, that is, the other sandwiching member 1b, and a cross section into which half of the communication cable W is fitted on both sides of the mating surface 2. A pair of semicircular holding recesses 3 are formed in parallel. The inner peripheral surface of the holding concave portion 3 is formed with multiple corrugations of irregularities along the direction orthogonal to the longitudinal direction thereof. This is for the purpose of firmly biting into the outer peripheral surface of the communication cable W to be fitted and fixing it firmly. Therefore, if the same effect can be obtained, for example, knurling may be performed. In addition, an insertion hole 4 through which a fixing bolt 13 described later for tightening both the sandwiching members 1a and 1b which coincides with the substantially center of the mating surface 2 is inserted is formed in a transverse shape. A bolt insertion groove 6 is formed on one side above the insertion hole 4 so as to communicate with the insertion hole 4 along the holding recess 3 and reach the outer edge to open 5. The bolt insertion groove 6 has a lateral width of approximately the same size as the outer diameter of the fixing bolt 13, and projections on both wall surfaces thereof so that the boundary with the insertion hole 4 is slightly smaller than the outer diameter of the fixing bolt 13. 7 is provided. As a result, the fixing bolt 13 that is once inserted through the insertion hole 4 is less likely to come off toward the bolt insertion groove 6 side by the protrusion 7.

Further , the supporting piece portion 8 is substantially flush with the mating surface 2 on both side edges of the sandwiching member 1a, and more specifically, the supporting piece portion 8 projects outward from the mating surface 2. , And an engaging piece portion 9 which is bent inward in a U shape is provided along a side edge of each supporting piece portion 8 over a half portion thereof. The upper and lower sides and the inner side of the engaging piece portion 9 are open, and the supporting piece portion 8 of the other sandwiching member 1b and the both sandwiching members 1a and 1b, which are in contact with each other, hold the holding recess portion 3 with respect to each other.
It is adapted to be slid so as to rub along and to be engaged. Further, a protrusion 10 that engages with the outer surface of each of the support piece portions 8 and the inner surface of the engagement piece portion 9 in a matched state.
And a recess 11 are provided respectively.

Further , on the back surface of the sandwiching member 1a, the holding recess 3 is provided on the outer peripheral surface along the longitudinal direction thereof.
A plurality of reinforcing ribs 12 are provided so as to project in a direction orthogonal to and parallel to each other at substantially equal intervals.

The power or communication cable fixture A according to the present invention has the above-mentioned structure, and the method of use will be described with reference to FIGS. 6 and 7. In the figure, 13 is a fixing bolt attached so as to extend horizontally from a pillar of a steel tower (not shown). Therefore, first, the one clamping member 1a is arranged below the fixing bolt 13 with the opening 5 facing upward, and
3 is inserted from the opening 5 into the bolt insertion groove 6 and is further pushed firmly to be inserted into the insertion hole 4. Next, half of the communication cable W is fitted into each holding recess 3. In this state,
The other sandwiching member 1b is turned upside down and the opening 5 is placed on the upper side of the fixing bolt 13 so that the opening 5 is on the lower side, and the fixing bolt 13 is inserted from the opening 5 into the bolt insertion groove 6 and pushed further strongly. By doing so, it is inserted into the insertion hole 4. At this time, the mating surfaces 2 that contact the sandwiching members 1a and 1b with each other.
2 and the support pieces 8, 8 are slid so as to rub each other. As a result, as shown in FIG. 8, each support piece portion 8 engages with each engagement piece portion 9, and the protrusions 10 of each other are engaged.
And the recess 11 are engaged and matched. In this case, a slight gap is formed between the support pieces 8 so that the projection 10 does not get in the way when it is slid. Further, in the state where they match each other, the protrusion 1
Since 0 and the recess 11 are engaged with each other, one of the sandwiching members 1a and 1b does not fall out.

The electric power or communication cable fixture A assembled in this manner is moved along the fixing bolts 13, and as shown in FIGS. 8 and 9, the sandwiching members 1a, 1b are attached to each other.
The plurality of nuts 16 are screwed together with the washer 14 and the lock washer 15 to the fixing bolt 13 on the outer side of, and the fixture A for electric power or communication cable is firmly fixed. After that, the same work is repeated and the work of supporting and fixing the communication cables W, W by the power or communication cable fixture A is sequentially performed. In this way, both clamping members 1a, 1b can be fitted only by sliding, and neither of them will fall out easily, and the work of supporting and fixing the communication cables W, W can be performed extremely easily and easily. Further, since the supporting piece portion 8 projects outward from the mating surface 2, there is a gap between the mating surfaces 2 and 2 which face each other, and when the nut 16 is screwed, both the clamping members 1a and 1b. The spring action works and tightens firmly. Since there are usually a plurality of communication cables W such as four or six, FIG.
As shown in 0, a plurality of power or communication cable fixtures A are connected and fixed to the fixing bolt 13.

[0015] FIGS. 11 to 12 shows the power or communication cable fixture A1, A 2 is intended according to another embodiment, fixture A same site power or communication cable according to this embodiment The same numbers are assigned to the elements, and detailed description thereof will be omitted.

A power or communication cable fixture A1 shown in FIG . 11 is composed of a pair of sandwiching members 1a and 1b for sandwiching and fixing the communication cable W from both sides thereof. Retaining recesses 3 having a semicircular cross section are formed so as to be fitted to the facing mating surfaces 2 and to which the half portions of the communication cable W are respectively fitted. Further, an insertion hole 4 through which a fixing bolt 13 for tightening the both sandwiching members 1a and 1b is inserted is provided. Bolt insertion grooves 6 which are different in direction from each other along the holding concave portion 3 and communicate with the insertion hole 4 and reach the outer end edge are formed on one side thereof. Then, at both side edges of the sandwiching piece portions 1a and 1b, supporting piece portions 8 are formed along the facing surfaces.
And an engaging piece portion 9 which is bent inward and is engageable with the supporting piece portion 8 which is in contact with the supporting piece portion 8. Protrusions 10 and recesses 11 that engage in a matched state are provided respectively on the opposing surfaces of 9, and the support piece portion 8 is formed by sliding both sandwiching members 1a and 1b along the holding recesses 3 with each other. Engage with the engaging piece 9. Also in this case, the communication cable W can be supported and fixed in the same manner as in the present embodiment.

The power or communication cable fixture A2 shown in FIG . 12 comprises a pair of sandwiching members 1a and 1b for sandwiching and fixing the communication cable W from both sides thereof, and each sandwiching member 1a and 1b comprises: A holding recess 3 having a semicircular cross section is formed so as to be fitted to the facing mating surfaces 2 and to which the half portions of the communication cable W are respectively fitted, and a projection 10 and a recess 11 which are engaged with each other in a fitted state. Each is provided. Further, an insertion hole 4 through which a fixing bolt 13 for tightening the both sandwiching members 1a and 1b is inserted is provided. Support pieces 8 are provided on both side edges of each of the sandwiching members 1a and 1b along the facing mating surfaces 2, and the support pieces bend inwardly and contact each other. An engaging piece portion 9 with which the portion 8 can be engaged is provided, and the supporting piece portion 8 is engaged with the engaging piece portion 9 by sliding both the sandwiching members 1 a and 1 b along the holding recessed portion 3. I am trying to match.

In the power or communication cable fixture A2 according to this embodiment, a pair of sandwiching members 1a, 1b is provided.
Among them, one of the sandwiching members 1a is turned upside down, and the mating surfaces 2 and 2 and the supporting piece portions 8 and 8 which contact these sandwiching members 1a and 1b are rubbed against each other along the holding recess 3 To be slid. As a result, each support piece portion 8 engages with each engagement piece portion 9, and further, the protrusion 10 and the recess portion 1 of each other.
1 is engaged and matched. Therefore, although illustration is omitted, one of the sandwiching members 1a and 1b is separated and one sandwiching member 1 is formed.
Half of the communication cables W, W are fitted into the holding recesses 3 of a, and then half of the communication cables W, W are fitted into the holding recesses 3 of the other sandwiching member 1b. 1b are slid over each other as described above to fit. The electric power or communication cable fixture A2 assembled in this way is moved along the communication cables W, W, and the fixing bolt 13 is inserted into the insertion hole 4 so that the mutual clamping members 1a,
The plurality of nuts 16 are screwed together with the washer 14 and the lock washer 15 to the fixing bolt 13 on the outer side of 1b to firmly fix the power or communication cable fixture A2. After that, the same work is repeated and the work of supporting and fixing the communication cables W, W by the power or communication cable fixture A2 is sequentially performed. In this case as well, both clamping members 1a, 1b can be fitted together simply by sliding, and neither will fall out easily, and the work of supporting and fixing the communication cables W, W can be performed extremely easily and easily.

[0019]

As described above, the fixture for electric power or communication cable according to the present invention is made of synthetic resin to reduce the weight. You can climb with equipment,
Further since the both clamping members in sliding Dos Runomi mutually assembled in agreement, the support fixing operation of the power or communication cable is simplified, thereby the effect of improving the work efficiency saves time. In addition, since the weight of the electric power or communication cable fixture can be reduced, the safety of work at a high place such as a steel tower is increased. Further, since a plurality of reinforcing ribs are provided on the outer peripheral surface in parallel and at equal intervals along the longitudinal direction thereof, there is an effect that the ribs are strong enough to withstand long-term use.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a power or communication cable fixture according to the present invention.

FIG. 2 is a front view of a sandwiching member.

FIG. 3 is a rear view of the sandwiching member.

FIG. 4 is a sectional view taken along line XX in FIG.

5 is a cross-sectional view taken along the line YY in FIG.

FIG. 6 is a side view showing how to use the power or communication cable fixture.

FIG. 7 is a plan view showing how to use the power or communication cable fixture.

FIG. 8 is a plan view showing a state in which a power or communication cable is supported and fixed.

FIG. 9 is a perspective view showing a state in which a power or communication cable is supported and fixed.

FIG. 10 is a plan view showing a state in which a plurality of electric power or communication cables are supported and fixed.

FIG. 11 is an exploded perspective view of a power or communication cable fixture according to another embodiment.

FIG. 12 is an exploded perspective view of a power or communication cable fixture according to another embodiment.

[Explanation of symbols]

1a, 1b Clamping member 3 Holding recess 4 Insertion hole 6 Bolt insertion groove 8 Supporting piece 9 Engaging piece 10 Protrusion 11 Recess 12 Reinforcing rib 13 Fixing bolt A to A2 Fixture for power or communication cable W Communication cable

─────────────────────────────────────────────────── ─── Continuation of front page (72) Eiji Ichikawa 4-17-8 Tsurumai, Showa-ku, Nagoya, Aichi Prefecture Royal Villa Tsurumai No. 502 (72) Inventor Eiichi Murakami 4-4 Hiromikita-cho, Seki City, Gifu Prefecture (56) ) Reference JP-A-2000-13973 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) H02G 7/02 F16B 2/08 F16G 11/06 F16L 3/10

Claims (4)

(57) [Claims] 1. A pair of sandwiching members for sandwiching and fixing a power or communication cable from both sides thereof, wherein each sandwiching member is matched with its facing surface and half of the power or communication cable is provided. Retaining recesses each having a semi-circular cross section to be fitted are formed, and an insertion hole for inserting a fixing bolt for tightening both the sandwiching members that match is formed through, and one side thereof is provided along the retaining recess. Bolt insertion grooves that communicate with the insertion holes and reach the outer end edges are formed, and support piece portions are extended along the facing surfaces at both end edges of each of the sandwiching members and inside each support piece portion. Is provided with an engaging piece portion capable of engaging with supporting piece portions bent and facing each other, and further, each supporting piece portion and the engaging piece portion are respectively provided with a projection and a concave portion which engage in a matched state. Align the two clamping members with each other along the holding A fixing tool for electric power or communication cable, characterized in that the supporting piece is engaged with the engaging piece by idling. 2. A pair of sandwiching members for sandwiching and fixing the power or communication cable from both sides thereof, wherein each sandwiching member is matched with its facing surface and half of the power or communication cable is formed. Retaining recesses each having a semi-circular cross section to be fitted are formed, and an insertion hole for inserting a fixing bolt for tightening both the sandwiching members that match is formed through, and one side thereof is provided along the retaining recess. Bolt insertion grooves that communicate with the insertion holes and reach the outer end edges are formed, and support piece portions are extended along opposite surfaces at both end edges of each of the sandwiching members and one support piece portion is provided. An engaging piece portion that bends inwardly and is capable of engaging with a supporting piece portion that is in contact with the engaging piece portion is provided, and furthermore, a projection and a recess portion that engage with each other on opposing surfaces of the supporting piece portion and the engaging piece portion. Are provided respectively, and both the sandwiching members are aligned with each other in the holding recess. A fixture for electric power or communication cable, characterized in that the supporting piece is engaged with the engaging piece by sliding together. 3. A pair of sandwiching members for sandwiching and fixing the power or communication cable from both sides thereof, wherein each sandwiching member is matched with its facing surface and half of the power or communication cable is provided. Retaining recesses each having a semicircular cross section to be fitted are formed, and projections and recesses that engage with each other in a matched state are provided, respectively, and a fixing bolt for tightening both matched sandwiching members is inserted. Holes are formed through the support members, and support piece portions are provided on both side edges of each of the sandwiching members along the opposing surfaces, and support piece portions that are bent inward and are in contact with each other are engaged with each other. Is provided, and the supporting piece is engaged with the engaging piece by sliding both sandwiching members along the holding recess. Fixture for communication cable. 4. An outer peripheral surface of the sandwiching member is orthogonal to the holding recess.
A request for a plurality of parallel reinforcing ribs protruding along the direction
Item 1 or 2 or 3 fixed for power or communication cable
Fixed item.