JP3471763B2 - Feeder support - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a feeder support for attaching a feeder to a steel tower or the like.

[0002]

2. Description of the Related Art Conventionally, Japanese Patent No. 2954841 has been known as a support for attaching a feeder to a steel tower. This feeder support includes a plurality of stackable blocks each having a semicircular recess for inserting a cable (feed line), and a half-divided rubber for fitting the recess to hold the cable. It is equipped with a cushion. Of the plurality of blocks, one pair of adjacent blocks is provided with a pair of left and right engaging pieces, and the other is provided with a pair of left and right engaging recesses for engaging the pair of engaging pieces. , The rubber cushion is fitted between the semicircular recesses of the pair of blocks to insert the cables, and the engaging pieces are locked in the locking recesses to grip the cables, thus sequentially connecting the blocks. After holding the cable, the belt member is integrally fixed to the steel frame such as a steel tower.

[0003]

However, in this conventional feeder support, when a cable is newly installed or replaced, a plurality of blocks stacked to insert the cable into the block are disassembled (disconnected). It is necessary to do this, by elastically deforming the engaging piece that has been firmly locked in the locking recess to the outside using a tool, etc., and separating (prying) from the locking recess. Need to do. Since this work is usually performed at a high place (such as on a tower) and where workability is poor, there is a risk of accidentally damaging or dropping the block during work. It was

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a feeder support which can easily and reliably carry out cable laying work with no work mistakes.

[0005]

In order to achieve the above-mentioned object, a feeder support according to the present invention comprises a plurality of stackable block bodies each having a semi-circular recess, and a pair of adjoining blocks. The cable is held in the circular hole formed by the union of the concave parts of the block body, and a plurality of stacked
The block body is clamped and fixed by a tightening belt.
In the feeder support according to the present invention, one block body is provided with elastic hook portions and guide portions projecting from the left and right side wall portions forming the concave portion, respectively, and the other block body is formed with the concave portion. The end faces of the left and right side walls are provided with fitting holes into which the elastic hook portion and the guide portion can be inserted, respectively, and in which an engaging female portion is formed, and the elastic hook portions are slidable with a movable allowance of a predetermined size.
The elastic hook portion and the guide portion are inserted into the fitting hole from the connecting / separating direction so that the elastic hook portion is engaged with the engaging female portion so that the elastic hook portion engages with the engaging female portion. With the pair of block bodies connected to each other, the elastic hook portion side is centered
As the guide part swings in the direction to pull out from the fitting hole
When the guide portion is engaged with the locking female portion of the fitting hole to prevent the guide portion from coming out of the fitting hole, the stopper is provided on the guide portion, and the elastic hook portion is provided with a side. The pair of block bodies is configured to be separable in the connecting / separating direction by applying a pressing force from the outside and elastically deforming the elastic body to separate it from the locking female portion. Further, the retaining projection is provided on the tip side of the guide portion.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below in detail with reference to the drawings showing the embodiments.

A feeder support according to the present invention comprises, for example, a support body 1 shown in FIG. 1 and a tubular cable grip member 2 shown in FIG. As shown in the assembled state of FIG. 1 and the disassembled state of FIG. 3, the support body 1 is provided with a plurality of stackable block bodies 3 each having a semicircular concave portion 7. That is, the support body 1 is composed of a base block body 5, a tip block body 4 (which is stacked on the base block body 5) and at least one intermediate block body 6 as shown in FIGS. 1 and 3. In some cases, the base block body 5 and the tip block body 4 (illustrated in FIG. 4) may be included. Each of these block bodies 3 is formed of a resin having excellent weather resistance, such as high-density polyethylene or polypropylene, and each of the recesses 7 is formed with a circumferential groove 21 at an axially intermediate portion thereof. Axial groove on both ends
28, 28 are formed. In addition, in FIG. 3, the tip block body 4 is shown inverted (upside down).

This support main body 1 has a cable (feed line) with a circular hole 8 (through the cable gripping member 2) formed by a combination of the recesses 7, 7 of a pair of adjacent block bodies 3, 3. The one block body 3 is provided with elastic hook portions 30 and guide portions 31 projecting from the left and right side wall portions 13 forming the recesses 7 ..., and the other block body 3 is provided with A fitting hole 32 into which the elastic hook portion 30 and the guide portion 31 can be inserted, respectively, and an engaging female portion 34 (see FIG. 4) is formed inside the end surfaces of the left and right side wall portions 13 and 13 forming the concave portions 7.
Further, the elastic hook portion 30 and the locking female portion 34 are engaged with each other to prevent the pair of block bodies 3 and 3 from being separated from each other, and to the elastic hook portion 30 from the side outward. The pair of block bodies 3 and 3 can be separated by applying a pressing force to elastically deform them and separate them from the locking female portion 34.

The tip block body 4 includes (three) recesses 7 ...
Has side walls 13 and 13 that are formed side by side, and one of the side walls 13 is (the other block body 3 on the side where the recess 7 is opened).
Has a stepped surface 35 formed by notching the joint surface 10 and is provided with the elastic hook portion 30.
And two positioning pins 11 and 11 arranged on both sides of the elastic hook portion 30 are erected (in a vertical shape), and the other side wall portion
A guide portion 31 is erected (vertically) on the joint surface 10 of 13. Also, the width (width) of the tip surface 14 of the tip block body 4
Two pairs of left and right chamfered grooves 15 are formed at both ends in the direction. This chamfer groove 15 has a tightening belt 20 (see FIG. 7) described later.
It is for preventing the misalignment.

The elastic hook portion 30 has a thin portion 30c continuously provided on the stepped surface 35 and a main body portion 30a continuously provided on the thin portion 30c.
And a thin plate-shaped insertion portion that is connected to the main body portion 30a and that has a claw portion 33 that protrudes laterally outward (on the side opposite to the concave portion 7) at the tip.
It consists of 30b and.

The guide portion 31 is formed in a flat plate shape,
Guide recesses 38, 38 are provided on both side surfaces of 31 (perpendicular to the joint surface 10), and one surface of the guide portion 31 (opposite to the recess 7)
The guide protrusion 39 is provided on the surface 31a (perpendicular to the joint surface 10), and the one end surface 31a of the guide portion 31a is provided with a retaining protrusion.
Twelve are provided.

The base block body 5 is provided with (three) recesses 7
On the joint surfaces 10 and 10 (to be the opening side of the recess 7) of the left and right side wall portions 13 and 13 that are formed side by side (in the direction perpendicular to the joint surface 10).
Fitting holes 32 are provided respectively. The side view shape (shape of the side wall portion 13) of the base block body 5 is an asymmetrical shape (uneven leg trapezoid).

The fitting hole 32 of the one side wall portion 13 is a fitting hole 32a for the elastic hook portion into which the insertion portion 30b (the claw portion 33) of the elastic hook portion 30 can be slidably inserted, and the other side wall. Department
The fitting hole 32 of 13 is a guide portion fitting hole 32b into which the guide portion 31 can be slidably inserted. Further, the side wall portion 13 provided with the elastic hook portion fitting hole 32a is provided with positioning grooves 42, 42 into which the positioning pins 11, 11 are fitted.

A locking female portion 34 with which the claw portion 33 of the elastic hook portion 30 is engaged is formed on the inner surface of the elastic hook portion fitting hole 32a (see FIG. 4). On the inner surface of the guide-portion fitting hole 32b, the guide recessed portion into which the guide protrusion 39 of the guide portion 31 fits
40, the guide protrusions 41, 41 fitted into the guide recesses 38, 38 of the guide portion 31, and the locking female portion 34 with which the retaining projection 12 of the guide portion 31 engages under predetermined conditions described later (see FIG. 6) is formed.

Further, the surface of the base block body 5 opposite to the joint surface 10 forms a contact surface 5a which comes into contact with a mounting member 19 (see FIG. 7) such as a steel frame of a steel tower. A mounting member such as a steel tower is attached to one end edge of the contact surface 5a in the longitudinal direction (direction in which the recesses 7 are arranged in parallel).
A locking projection 9 for hooking and positioning on 19 is provided. A pair of left and right guide grooves 17, 17 for guiding the tightening belts 20, 20 (see FIG. 6) is provided on one surface 16 of the base block body 5 on the side of the locking projection 9 (in a direction perpendicular to the contact surface 5a). )
Has been formed.

The intermediate block body 6 has a pair of semi-circular recesses 7 and 7 (3 sets) which are open on the opposite sides of each other, and the end faces (stepped portions) of the left and right side wall portions 13 and 13 of one of the recesses 7 ... Face 35 and joining face
10) is provided with the elastic hook portion 30, the positioning pins 11, 11 and the guide portion 31, respectively, and the left and right side wall portions 13, 13 of the other concave portion 7,
The fitting holes 32 are provided on the end faces of 13 (joint faces 10, 10).

As shown in FIGS. 2 and 7, the cylindrical cable gripping member 2 is composed of a pair of elastic halves 22, 22, and is fitted in the recesses 7 ... Of each block body 3. Elastic half 22
Is an arcuate portion 23 having a semicircular shape corresponding to the recess 7 of the block body 3 and having a predetermined thickness, and a convex outer surface of the arcuate portion 23, which is fitted in the circumferential groove 21 of the recess 7. And the axial projections 29, 29 provided on the convex outer surface of the circular arc portion 23 and fitted in the axial grooves 28, 28 of the recess 7. Is formed of an elastic material such as rubber or elastic plastic.

The cable gripping member 2 has an inner surface 27.
Further, it has elastically deformable pleats 36 for accommodating different diameter cables. Specifically, the folds 36 are elastic half members 22.
A plurality of arc-shaped protrusions 37 provided on the inner surface of the arc portion 23 of the ...
The arcuate ridges 37 ... Are concentric and are arranged at a predetermined pitch in the axial direction. The pleats 36 may be spiral ridges provided on the inner surface 27 of the cable gripping member 2 in addition to the concentric ridges 37. Of course, the inner surface 27 without the pleats 36 may be used.

As described above, since the gripping member 2 can be used with various cables C having different outer diameters, it is not necessary to replace the gripping member 2 each time according to the outer diameter of the cable, and the cable is not properly gripped due to an incorrect size selection. Will also be prevented. That is, the pleats 36, 36 of the gripping member 2 made of an elastic material absorb the fluctuation of the outer diameter of the cable C by elastic deformation that tilts in the axial direction with respect to the fluctuation of the outer diameter of the cable C to be gripped. You can In other words, even when the cable C having an outer diameter larger than the inner diameter of the gripping member 2 (the folds 36, 36) is gripped, the folds 36
Can be easily elastically deformed according to the cable diameter, and the diameter difference can be sufficiently allowed. Although one or a plurality of cables C having different diameters are laid in this way, the cable gripping member 2 to be used has an inner diameter (of the fold portion 36)
The size is set to be equal to or smaller than the outer diameter of the smallest diameter cable C.

Next, the assembly and operation of the feeder support of the present invention will be described. First, an example of assembling the support body 1 composed of the tip block body 4 and the base block body 5 will be described. As shown in FIG. 4A, first, the guide portion 31 of the tip block body 4 is moved to the base block body 5. As it is inserted into the guide portion fitting hole 32b, the insertion portion 30b (the claw portion 33) of the elastic hook portion 30 of the tip block body 4 contacts the opening end edge portion of the elastic hook portion fitting hole 32a. When the tip block body 4 is pushed in further, the claw portion 33 is guided into the fitting hole 32a while sliding the inclined surface 33a of the claw portion 33 to the opening end edge portion of the fitting hole 32a. The thin portion 30c, which is the base end of the hook portion 30, elastically deforms, the elastic hook portion 30 swings inward (toward the recess 7), and the insertion portion 30b (claw portion 33) is fitted into the fitting hole 32a.
Be guided inside. As shown in FIG. 4B, the claw portion 33 engages with the locking female portion 34 in the fitting hole 32a, and the joint surface 10 of the side wall portion 13 of the tip block body 4 becomes the base block. While abutting on the joint surface 10 of the side wall portion 13 of the body 5, the elastic hook portion 30
The front end surface of the main body portion 30a is a side wall portion of the base block body 5.
When the elastic hook portion 30 (insertion portion 30b) and the guide portion are abutted against the joint surface 10 of 13 and cannot be pushed further.
The state where 31 is inserted into the fitting holes 32a and 32b is set. Also,
The positioning pins 11, 11 of the tip block body 4 are fitted into the positioning grooves 42, 42 (see FIG. 3) of the base block body 5,
The tip block body 4 and the base block body 5 are prevented from being displaced from each other (in the horizontal direction).

At this time, since the elastic hook portion 30 is engaged with the locking female portion 34 so as to be slidable by the movable allowance M having a predetermined size, the tip block body 4 and the base block body 5 are It will be movably connected in the direction of relatively approaching and separating. The movable allowance M is determined by the length of the insertion portion 30b and the length of the locking female portion 34. Further, when the tip block body 4 and the base block body 5 are relatively separated from each other,
By the engagement of the claw portion 33 and the locking female portion 34, the elastic hook portion 30 is prevented from coming off from the fitting hole 32 and the separation of the tip block body 4 and the base block body 5 is prevented. At this time, the elastic hook portion 30 slightly elastically urges in the direction away from the recess 7.

Further, when the tip block body 4 and the base block body 5 are separated (disassembled), the elastic hook portion 30 approaches the concave portion 7 to the main body portion 30a of the elastic hook portion 30,
By applying a pressing force from the outside of the side (with a fingertip), the thin portion 30c of the elastic hook portion 30 is elastically deformed, and the claw portion 33 is locked by the female portion.
The elastic hook portion 30 can be pulled out from the fitting hole 32 by separating from the fitting hole 32. In the assembly of the tip block body 4 and the base block body 5, by pressing the main body portion 30a from the lateral outside with a fingertip, the thin portion 30c is elastically deformed,
The insertion portion 30b (claw portion 33) may be inserted into the fitting hole 32.

As described above, the elastic hook portion 30 and the guide portion 31
When inserting / removing into / from the fitting holes 32, 32 from the connection / separation direction A (direction perpendicular to the joint surface 10 of the base block body 5),
As shown in FIG. 5, the positional relationship between 31 and the opening end of the fitting hole 32b is as follows: the guide recess 40 of the fitting hole 32b, the guide protrusion 39 of the guide portion 31, and the guide of the fitting hole 32b. The protrusions 41, 41 and the guide recesses 38, 38 of the guide portion 31 are fitted together, and the retaining projection 12 of the guide portion 31 is inserted into the opening end of the fitting hole 32b with a slight clearance. ing. Therefore, the guide portion 31 can be smoothly inserted into and removed from the fitting hole 32b in the connecting and separating direction A.

Then, the elastic hook portion 30 and the guide portion 31 are inserted into the fitting holes 32, 32 from the connecting and separating direction A, and the elastic hook portion 30 is engaged with the locking female portion 34 to connect the block bodies 4, 5. In this state, as shown in FIG. 6, the guide portion 31 moves in the extraction direction B inclined by a predetermined angle θ with respect to the coupling / separation direction A, so that the retaining projection 12 of the guide portion 31 is fitted into the fitting hole. 32
It engages with the locking female part 34 of b, and from the fitting hole 32b to the guide part 31
To prevent it from slipping out.

More specifically, when the block bodies 4 and 5 receive a force in a direction in which they are separated from each other (by the cable C shown in FIG. 7 or the like), as shown in FIG. 5 is separated by the movable allowance M (in the connecting / separating direction), and thereafter, as shown in FIG. 6B, the guide portion 31 side of the block bodies 4, 5 is centered around the elastic hook portion 30 and the positioning pin 11. It swings in a direction in which they are separated from each other (that is, a direction in which the guide portion 31 is pulled out from the fitting hole 32b). When the guide portion 31 moves in the extracting direction B, the retaining projection 12 approaches the engaging female portion 34 by a distance ε and engages with the engaging female portion 34, and is fitted with the guide portion 31. Prevents separation of holes 32b.

When the guide portion 31 moves in the extracting direction B, the blocks 4, 5 are elastically deformed around the swing center, and the guide protrusion 39 of the guide portion 31 is fitted in the fitting hole.
The tip block body 4 may swing while elastically deforming in a curved manner by slidingly contacting the locking female portion 34 of 32b.

Further, since the retaining projection 12 is provided on the tip side of the guide portion 31, the distance ε becomes large, and the retaining projection 12 is made small or the opening of the fitting hole 32b is enlarged to prevent the removal. The clearance between the projection 12 and the opening end of the fitting hole 32b can be increased, so that the guide portion 31 can be more smoothly inserted into and removed from the fitting hole 32b in the connecting and separating direction A, and the guide portion Fitting hole 32b in the extracting direction B of 31
Can be reliably prevented from separating.

Next, in the case of assembling the support body 1 composed of the tip block body 4, the intermediate block body 6 and the base block body 5, as shown in FIGS. 1 and 3, (as described above).
Fitting holes 32, 32 of the base block body 5 and the intermediate block body 6
By connecting (fitting) the elastic hook part 30 and the guide part 31 of
Moreover, the fitting holes 32, 32 of the intermediate block body 6 may be connected to the elastic hook portion 30 and the guide portion 31 of the tip block body 4.

In the actual cable laying work, when the block bodies 3 are in the disassembled state (see FIG. 3), the elastic half bodies 22, 22 (see FIG. 2) of the cable gripping member 2 are attached to the block bodies 3. As shown in FIG. 7, after fitting three cables C ... With the base block body 5 and the intermediate block body 6 through the cable gripping member 2, the three cables C ... Are fitted through the cable gripping member 2. Grip the three cables C ... With the intermediate block body 6 and the tip block body 4, and bring the contact surface 5a of the base block body 5 into contact with the vertical surface 19a of the mounting member 19.
Further, the locking projection 9 of the base block body 5 is locked to the upper edge (corner) of the mounting member 19--that is, it is used as an overhang--, after the base block body 5 is positioned. The block bodies 3 and the attachment member 19 may be held together by the fastening belts 20 and 20 and fastened and fixed.

At this time, the support body 1 with the cable gripping members 2 fitted is previously assembled (connected) on the ground, and the tip / intermediate block bodies 4, 6 and Intermediate / base block body 6,5
The elastic hook part (due to the pressing force from the outside of the fingertip)
It is possible to disassemble by detaching 30 and reassemble after inserting the cable C, and to grasp the cables C one by one, so you can install the cables without using tools (for disassembling). Work can be done easily and quickly,
There is no need to drop each block body 3 when it is assembled, so that there is no danger of interruption of work or falling objects. In addition, in order to ensure the prevention of falling, each block body 3 has a hole through which each block body 3 can be pierced in a skewered shape.
It may be provided in the above and temporarily fixed with a chain wire or the like.

Then, as shown in FIG. 7, the support main body 1
Of the downward load (such as the self-weight of the cable C) applied to the support body 1 in the state in which is attached to the attachment member 19, the load on the tip end side is taken up by the upper portion 20a of the tightening belt 20. Has been. At this time, since the side view shape of the base block body 5 is asymmetrical (as described above), the angle formed between the upper portion 20a of the fastening belt 20 and the horizontal plane can be increased, and the fastening belt 20 Vertical support force (component force)
Can be increased, and the tip end side of the support body 1 can be prevented from falling downward.

The present invention is not limited to the above-described embodiment, and, for example, the number of the recesses 7 provided in each block body 3 of the support body 1 is not limited to three, and the intermediate block body 6 is also provided.
Is not limited to one, and may be two or more. Further, the retaining projection 12 is not limited to the tip end side of the guide portion 31 and may be provided in the middle portion. Further, fitting holes 32, 32 may be provided on the tip block body 4 side, and the elastic hook portion 30 and the guide portion 31 may be arranged on the base block body 5 side.

[0033]

Since the present invention is configured as described above, it has the following effects.

When the cable C is newly installed or replaced (according to claim 1), the elastic hook portion 30 is used.
Is elastically deformed by applying a pressing force from the outside to the fitting hole.
Since it can be pulled out from 32 ─ In short, the direction in which the engaging piece (elastic hook portion) is elastically deformed is different from the conventional example ──, adjacent block bodies 3 and 3 (for disassembly) No elastic tool 30 without using tools
It can be easily disassembled by simply pressing (with your fingertip). Therefore, when the block bodies 3 are disassembled, the block bodies 3 are not damaged or dropped, which eliminates the risk of work interruption or falling objects.
Cable laying work can be done easily and quickly. In addition, since the guide portion 31 is provided with the retaining projection 12, it is possible to smoothly combine and disassemble the adjacent block bodies 3 and 3 in the connecting / separating direction A, and also to remove the block bodies 3 and 3 from each other. The connected state can be maintained.

According to the second aspect of the present invention, since the retaining projection 12 is provided on the tip end side of the guide portion 31, the guide portion 31 can be more easily inserted into and removed from the fitting hole 32b in the connecting and separating direction A. It can be performed smoothly, and the separation of the guide portion 31 in the extraction direction B from the fitting hole 32b can be reliably prevented.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a support body of a feeder support according to the present invention.

FIG. 2 is a perspective view showing a cable grip member.

FIG. 3 is a perspective view showing a disassembled state of the support body.

FIG. 4 is an operation explanatory view of an assembled state of the support body.

5 is a cross-sectional view of a main part in the state of FIG.

FIG. 6 is an explanatory view of the action of the support body in a retaining state.

FIG. 7 is a perspective view showing a cable installation state.

[Explanation of symbols]

3 blocks 7 recess 8 circular holes 12 Projector for retaining 13 Side wall 30 Elastic hook part 31 Guide part 32 Mating hole 34 Locking female part C cable A connection separation direction B Extraction direction

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shogo Araki 1008 Shinbori, Kumagaya-shi, Saitama Mitsubishi Cable Industries, Ltd. Kumagaya Manufacturing Co., Ltd. Hoshi Denso Co., Ltd. (72) Inventor Shinji Yamaguchi 1-8-1 Kotake-cho, Nerima-ku, Tokyo Ryosei Seisaku-Co. Ltd. (72) Inventor Seiichiro Hayashi 1-1-8 Kotake-cho, Nerima-ku, Tokyo Ryosei Denso Co., Ltd. (56) Reference JP-A-6-114120 (JP, A) JP-A-8-149638 (JP, A) Actual development Sho-62-119110 (JP, U) Registered utility model 3026426 (JP , U) Registered utility model 3005145 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) H02G 7/02 H02G 1/02

Claims (2)

(57) [Claims] 1. A plurality of stackable block bodies each having a semi-circular recess, wherein a plurality of stacks are formed by gripping a cable in a circular hole formed by a combination of recesses of a pair of adjacent block bodies. The block body of
In the feeder support that is fastened and fixed by a bolt , one block body is provided with elastic hook portions and guide portions that project from the left and right side wall portions that form the recesses,
The other block body, provided fitting hole elastic hook guide portion on the end face of the left and right lateral walls is that the engagement female portion therein and a respective insertable is formed for forming the recess, the elastic off
The hook part is slidable with a movable allowance of a predetermined size.
The engagement Tomemesu portion and engaged, the pair of block bodies elastic hook guide portion is engaged with the elastic hook portion engaging Tomemesu portion is inserted into the fitting hole from the connecting and separating directions In the connected state of, the guide portion side with the elastic hook portion side as the center
When it swings in the direction of pulling out from the fitting hole, it engages with the locking female part of the fitting hole and the guide part comes out from the fitting hole.
An anti-disengagement protrusion is provided in the guide portion, and further, a pressing force is applied to the elastic hook portion from the outside so that the elastic hook portion is elastically deformed to separate from the locking female portion. A feeder support, characterized in that it is configured to be separable in the connection / separation direction. 2. The feeder support according to claim 1, wherein the retaining projection is provided on the tip side of the guide portion.