JPH1155837A - Wedge type anchor clamp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wedge type anchor clamp which can attain cost reduction, by reducing the number of parts, and can improve workability by reducing the number of parts separated from a body part. SOLUTION: A clamp involves a body 1 formed with a U-shaped groove 5 for inserting the extending part 14 of a wire 13, a wedge member 3 which is inserted into the U-shaped groove so that the wire 13 may be clamped in a space to the bottom surface of the U-shaped groove, and a wedge presser 7 which generates pressure against the wire 13 to the wedge member 3. The wedge presser is formed so as to be protruded at the both side walls of the U-shaped groove. A jumper guide 4 for guiding the jumper 15 of the wire 13 is jointed to the wedge member 3. A straight bolt 9 for fastening the jumper guide 4 and the wedge member 3 can be screwed in the jumper guide 4 which is on the bolt insertion side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wedge type clamp for connecting and fixing a stretched electric wire to a support such as a steel tower.

[0002]

2. Description of the Related Art FIG. 5 shows a conventional example of the above-mentioned wedge-shaped anchoring clamp (for example, Japanese Patent Application Laid-Open No. 9-103022).
FIG. 6 is a side view showing FIG.
It is sectional drawing. As shown in both figures, the conventional wedge-type anchoring clamp has a connecting plate 32 for connecting to a support such as a steel tower (not shown), and a U-shaped member for inserting the extending portion 14 of the electric wire 13.
A main body 31 having a U-shaped groove 35 and being pivotally connected to the connecting plate 32 with a center bolt 38, a triangular bracket 37 supported on the main body 31 by the center bolt 38,
The wedge member 33 is inserted between the triangular bracket 37 and the main body 31 and a jumper guide 34 for guiding the jumper portion 15 of the electric wire 13 is provided.

[0003] The direction in which the electric wire 13 is stretched (see FIG.
When a pulling force is applied in the right direction (in the right direction), the wedge member 33 also tends to move rightward in the wedge-type retaining clamp as described above. Then, a pressing force against the electric wire 13 is generated in the wedge member 33 by the action of the triangular metal fitting 37, whereby the wedge member 33 and the U
The stretched portion 14 of the electric wire 13 is sandwiched between the bottom surface 36 of the groove 35 and fixed. Further, a jumper fixing portion 46 formed on the wedge member 33 and one end of the jumper guide 34 are fastened with two U bolts 39, 39 and nuts 40, 40.
The jumper portion 15 of the electric wire 13 is held between the jumper guide 6 and the jumper guide 34. And this jumper part 15
While extending along the jumper guide 34,
The other end of the jumper guide 34 is also sandwiched between the jumper guide 34 and the presser fitting 47 fastened thereto.

[0004]

However, in the above-mentioned conventional wedge-type anchoring clamp, in order to clamp the stretched portion 14 of the electric wire 13 between the main body 31 and the wedge member 33, a triangular shape is further provided as a third member. The metal fitting 37 is separately required. Therefore, there has been a demand for reducing the number of such separate members as much as possible to reduce costs by reducing the number of parts. Further, in order to extend the jumper portion 15 of the electric wire 13 along the jumper guide 34 in the above, first, it is necessary to remove the two U bolts 39, 39 and separate the jumper guide 34 from the wedge member 33. . However, the electric wire 13 by the wedge-type anchor clamp is used.
Is performed in a highly unstable place such as on a steel tower. Therefore, when there are many components separated from the main body 31, it is necessary to work while avoiding loss and danger of components due to the drop, and there is a problem that workability is significantly reduced.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional drawbacks, and has as its object to reduce the number of parts and cost, and to reduce the number of parts separated from the main body. Accordingly, it is an object of the present invention to provide a wedge-shaped retaining clamp capable of improving workability.

[0006]

Accordingly, a wedge-shaped retaining clamp according to claim 1 is connected to a support such as a steel tower and has a bottomed groove 5 into which a stretched portion 14 of an electric wire 13 is inserted. A wedge member 3 inserted into the bottomed groove 5 so that the stretched portion 14 of the electric wire 13 is sandwiched between the portion 1 and the bottom surface 6 of the bottomed groove 5, and a direction in which the electric wire 13 is stretched And a wedge holder 7 that causes the wedge member 3 to generate a pressing force on the sandwiched electric wire 13 by moving the wedge member 3 along the line, and extends the electric wire 13 between the main body 1 and the wedge member 3. In the wedge-type anchoring clamp for holding and fixing the portion 14, the wedge retainer 7 is characterized by projecting from the side wall of the bottomed groove 5.

In the wedge-type retaining clamp according to the first aspect of the present invention, since the wedge retainer 7 protrudes from the side wall of the bottomed groove 5, a separate member such as a conventional triangular bracket can be eliminated. .

[0008] The wedge-type retention clamp according to claim 2 is
The wedge retainer 7 is characterized in that it protrudes from both side walls of the bottomed groove 5.

In the wedge-type retaining clamp according to the second aspect, the wedge member 3 can be stably pressed and a uniform pressing force can be generated.

According to a third aspect of the present invention, in the wedge-type retaining clamp, the bottomed groove 5 is formed to be wider toward the opening side, and the opposed distance between the two wedge retainers 7, 7 formed on both side walls thereof. The diameter is at least substantially the same as or larger than the diameter of the electric wire 13 inserted into the bottomed groove 5.

In the wedge-type retaining clamp according to the third aspect, since the facing distance of the wedge retainer is at least substantially the same as or larger than the diameter of the electric wire, the electric wire is provided between the two wedge retainers. It can be inserted into the bottom groove 5.

According to a fourth aspect of the present invention, there is provided a wedge-type retaining clamp having a jumper guide for holding the jumper portion of the electric wire between the wedge member and the wedge member.
Is pivotally mounted at one end to the wedge member 3,
The other end is rotatable in the holding direction.

The jumper guide 4 is pivotally mounted on the wedge member 3. Since the wedge member 3 is attached to the main body 1, the jumper guide 4 can be connected to the main body 1 after all. Further, since the jumper guide 4 is rotatably connected, it is possible to avoid a reduction in workability.

According to a fifth aspect of the present invention, in the wedge-type retaining clamp, the wedge member 3 and the jumper guide 4 are connected by a straight bolt 9, and the straight bolt 9 is one of the wedge member 3 and the jumper guide 4. It is characterized in that it can be screwed to a member on the bolt insertion side.

In the wedge-type retaining clamp according to the fifth aspect, the bolt 9 for fastening the wedge member 3 and the jumper guide 4 can also be connected to the main body 1.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, specific embodiments of the wedge type retaining clamp of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a side view showing the wedge-shaped retaining clamp. The wedge-type clamp is connected to the electric wire 13.
Main body 1 having a U-shaped groove (groove with a bottom) 5 into which a tension portion 14 is inserted, and one end of the main body 1 having a center bolt 8
The extending portion 14 of the electric wire 13 is sandwiched between the connecting plate 2 which is pivotally attached at the other end and the other end of which is attached to a support (not shown) such as a steel tower, and the bottom surface 6 of the U-shaped groove 5. Wedge member 3 fitted into U-shaped groove 5 so that
And a jumper guide 4 that guides the jumper portion 15 of FIG.

The main body 1 has a U-shaped cross section as shown in FIG.
U-shaped groove 5 into which the extending portion 14 is inserted is formed.
The U-shaped groove 5 is formed so as to be gradually widened upward from the bottom surface 6 thereof, and wedge retainers 7 are protruded from an intermediate portion between both side walls. And these two wedge retainers 7,
The facing distance between the wires 7 is approximately the same as or slightly larger than the diameter of the electric wire 13.

Next, the wedge member 3 has a wedge portion 17 that tapers gradually toward the distal end. Then, the wedge portion 17 is inserted between the electric wire 13 disposed along the bottom surface 6 of the U-shaped groove 5 and the wedge retainer 7 projecting from both side walls of the U-shaped groove 5. Then, the electric wire 13 is sandwiched between the wedge portion 17 and the bottom surface 6 of the U-shaped groove 5, and the electric wire 13 is stretched in the extending direction (rightward in FIG. 1).
As a result, the wedge member 3 also attempts to move rightward in FIG. As a result, the wedge members 3 generate a pressing force on the sandwiched electric wire 13 by the action of the wedge retainers 7, 7, whereby the electric wire 13 is stretched between the wedge member 3 and the bottom surface 6 of the U-shaped groove 5. The part 14 will be clamped and fixed.

Further, the wedge member 3 has a jumper fixing portion 16 on the side opposite to the wedge portion. The jumper fixing portion 16 and one end of the jumper guide 4 are fastened with straight bolts 9 and 9 and nuts 10 and 10, and the jumper portion 15 of the electric wire 13 is connected between the jumper fixing portion 16 and the jumper guide 4. Is to be clamped. A long hole 12 is formed in one end of the jumper guide 4. By locking the long hole 12 with the screw 11 screwed to the wedge member 3, one end of the jumper guide 4 is pivotally mounted on the wedge member 3. Then, as shown in FIG.
Is removed and the fastening between the jumper guide 4 and the wedge member 3 by the straight bolt 9 is released, the other end of the jumper guide 4 is rotatable in the holding direction of the electric wire 13. The straight bolt 9 is inserted from the jumper guide 4 side so that the nut 10 is fastened on the wedge member 3 side. However, the nut 10 is removed and the tip of the straight bolt 9 is connected to the jumper fixing portion 16. The straight bolt 9 can be screwed onto the jumper guide 4 when pulled out from the jumper guide 4. The other end of the jumper guide 4 (the left end in FIG. 1) also has a jumper portion 1 of the electric wire 13 between the jumper guide 4 and the presser fitting 18 fastened thereto.
5 are pinched.

In the wedge-type retaining clamp, a wedge holder 7 for the wedge member 3 is provided on a side wall of the U-shaped groove 5 formed in the main body 1. Therefore, a separate member such as a triangular bracket, which has been conventionally required, is not required, and the cost can be reduced by reducing the number of parts. In addition, wedge presser 7
Since the wedge members 3 are provided on both side walls, the wedge member 3 can be stably held down, and the wedge member 3 can be uniformly pressed by the wedge member 3 to securely fix the electric wire 13. Further, the opposing distance between the two wedge retainers 7 is substantially equal to or slightly larger than the diameter of the electric wire 13. Therefore, the electric wire 13 can be easily inserted into the U-shaped groove 5 from the opening side of the U-shaped groove 5.

The jumper guide 4 includes a wedge member 3.
, And the straight bolt 9 can be screwed to the jumper guide 4. Therefore, the number of components separated from the main body 1 is reduced, and the necessity of performing the operation while avoiding the falling of the components is reduced, so that the workability of fixing the electric wire 13 can be improved. In addition, since the jumper guide is rotatable in the direction in which the electric wire 13 is held, it is avoided that the workability is reduced by connecting the components.

Although the specific embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and can be implemented with various modifications within the scope of the present invention. The U-shaped groove 5 has a bottom surface 6 as shown in FIG.
The opening is gradually widened from the opening to the opening side. However, as shown in FIG. 4, a step may be provided on the side wall to make the opening side wide. In the above description, the straight bolt 9 is inserted from the jumper guide 4 side, and the straight bolt 9 can be screwed to the jumper guide 4. However, the straight bolt 9 is inserted from the wedge member 3 side. Thus, the straight bolt 9 may be screwed to the jumper fixing portion 16 of the wedge member 3.

[0024]

According to the wedge-shaped retaining clamp of the first aspect, a separate member such as a conventional triangular bracket can be dispensed with, so that the cost can be reduced by reducing the number of parts.

According to the wedge-type retaining clamp of the second aspect, since a uniform pressing force can be generated on the wedge member, it is possible to securely fix the stretched portion of the electric wire.

Further, in the wedge-type retaining clamp according to the third aspect, the electric wire can be easily inserted into the bottomed groove from the opening side through the space between the two wedge holders, so that the workability can be improved. .

In the wedge-type anchoring clamp according to the fourth aspect, by connecting the jumper guide to the main body, the workability of fixing the electric wire can be further improved.

In the wedge-type retaining clamp according to the fifth aspect, since the straight bolt can also be connected to the main body, the workability can be further improved.

[Brief description of the drawings]

FIG. 1 is a side view of an embodiment of a wedge-shaped retaining clamp according to the present invention.

FIG. 2 is a sectional view of the wedge-shaped retaining clamp.

FIG. 3 is a side view of the wedge-shaped retaining clamp in a state where a jumper guide is rotated.

FIG. 4 is a cross-sectional view of a modified example of the wedge-shaped retaining clamp.

FIG. 5 is a side view of a conventional wedge-shaped retaining clamp.

FIG. 6 is a cross-sectional view of a conventional wedge-shaped retaining clamp.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body part 3 Wedge member 4 Jumper guide 5 U-shaped groove 6 Bottom surface 7 Wedge holder 9 Straight bolt 13 Electric wire 14 Stretched part 15 Jumper part

 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Akihiro Ikeda 13-1 Isojima Minamicho, Hirakata-shi, Osaka

Claims (5)

[Claims] (1) While being connected to a support such as a steel tower,
A body part (1) having a bottomed groove (5) for inserting a stretched portion (14) of an electric wire (13), and the bottomed groove (5);
Between the wire (13) and the bottom surface (6).
4) The wedge member (3) inserted into the bottomed groove (5) so that the wedge member (3) is inserted in the groove (5) so that the wedge member (3) is moved along the extending direction of the electric wire (13). (13)
And a wedge retainer (7) for causing the wedge member (3) to apply a pressing force to the wedge member (3), and an extending portion (14) of the electric wire (13) is provided between the main body portion (1) and the wedge member (3). A wedge-type clamp for clamping and fixing, wherein the wedge retainer (7) protrudes from a side wall of the bottomed groove (5). 2. The wedge retainer (7) has a bottomed groove (5).
2. The wedge-shaped clamp according to claim 1, wherein the clamps protrude from both side walls of the wedge. 3. The bottomed groove (5) is formed so as to be wider toward its opening side, and the opposed distance between the two wedge retainers (7) (7) formed on both side walls is at least bottomed. 3. The wedge-type clamp according to claim 2, wherein the diameter of the electric wire (13) inserted into the groove (5) is substantially equal to or larger than the diameter of the electric wire (13). 4. An electric wire (1) between said wedge member (3) and said wedge member (3).
A jumper guide (4) for holding the jumper portion (15) of (3) is provided. One end of the jumper guide (4) is pivotally mounted on the wedge member (3), and the other end of the jumper guide (4) rotates in the holding direction. 4. The wedge-type clamp according to claim 1, wherein the clamp is movable. 5. The wedge member (3) and the jumper guide (4) are connected by a straight bolt (9),
The straight bolt (9) is provided with the wedge member (3).
5. The wedge-type clamp according to claim 4, wherein the two members of the jumper guide can be screwed to a member on a bolt insertion side.