JPH08214428A - Non-circular cross section conductor gripping device - Google Patents

Abstract

(57) [Abstract] [Purpose] A non-circular cross-section conductor gripping device is provided, in which the half-split collar can be independently attached to the non-circular cross-section conductor and the half-split collar can be attached to the non-circular cross-section conductor even at a position away from the clamp mechanism. To do. [Structure] First half collar 10A and second half collar 10
B is mutually locked by the engaging portion 13A and the locking piece 13B. One end of the strip-shaped connecting member 14 is fixed to the clamp body 1A, and a groove 16 capable of accommodating the strip-shaped connecting member 14 is provided so as to go around the circumference of the first half-split collar 10A and the second half-split collar 10B. A deviation prevention member 17 is provided to prevent the material 14 from deviating from the groove 16.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a non-circular cross-section conductor gripping device for attaching a spacer or the like to an overhead power transmission line or the like having a non-circular cross-section shape.

[0002]

2. Description of the Related Art Conventionally, as a non-circular cross-section conductor gripping device for gripping a conductor having a non-circular cross section, for example, a conductor such as a low wind noise electric wire having a projection on its outer periphery, for example, Japanese Patent Laid-Open No. 6-70.
What is described in Japanese Patent No. 432 is known. In this device, two half-split collars, each having a recess matching the half-split cross-sectional shape of a non-circular cross-section conductor, for example, a groove capable of accommodating a diagonal projection, are openably and closably attached, and both are closed. As a result, a tubular collar that holds the non-circular cross-section conductor is provided inside. In addition, a clamp body having a semi-cylindrical concave portion and a clamp lid body having a semi-cylindrical concave portion that is hinged to the clamp body so as to be openable and closable are provided with a clamp mechanism that clamps the tubular collar. , Tighten the push bolt to remove the T-bolt from the clamp lid, clamp the tubular collar holding the wire in the clamp mechanism and temporarily fix the T-bolt to the clamp lid, then loosen the push bolt. Then, the T-bolt is locked to the clamp lid by the restoring force of the spring and the electric wire is gripped.

The tubular collar of the above-mentioned conventional non-circular cross-section conductor gripping device has a loop-shaped connecting member so that the half collar holding the electric wire does not open, and the connecting member has two end portions.
It is fixed to each of the two half collars. The outer peripheral surface of the tubular collar and the inner peripheral surfaces of the clamp body and the clamp lid are complementary to each other, and the tubular collar is configured to be rotatable inside the clamp body and the clamp lid.

[0004]

However, in the above-mentioned conventional non-circular cross-section conductor gripping device, since the two half collars are held by the operator after sandwiching the non-circular cross-section conductor, the non-circular cross-section conductor gripping device. However, there is a problem that the protrusions of (3) tend to be displaced from the grooves on the inner surface of the half collar. Also, because the connecting material that connects the two half collars is looped,
To install the tubular collar on a non-circular cross-section conductor by rotation,
Since it has to be performed in the vicinity of the clamp mechanism of the conductor gripping device, there is a problem that the dimensional margin is small and the work is difficult. Also, rotate the half collar with one hand to match it with the protrusion of the non-circular cross-section conductor and hold it down.
The work procedure was complicated because the clamp lid was closed with the other hand and the half collar was closed.

Therefore, an object of the present invention is to improve workability by allowing the half-split collar to be independently mounted on the non-circular cross-section conductor and allowing the half-split collar to be mounted on the non-circular cross-section conductor even at a position away from the clamp mechanism. An object is to provide a non-circular cross-section conductor gripping device.

[0006]

In order to solve the above-mentioned problems, a non-circular cross-section conductor gripping device according to the present invention is formed in a substantially half-cylindrical shape and internally matches the half-cut cross-sectional shape of a non-circular cross-section conductor. A first half-cut collar having a first recess and a second recess formed in a substantially half-cylindrical shape to match the half-cut cross-sectional shape of a non-circular cross-section conductor and can be opened and closed to the first half-cut collar. Has a second half collar that is hinged to
A tubular collar that holds the non-circular cross-section conductor in the space defined by the first recess and the second recess by closing both, a clamp body having a semi-cylindrical third recess, and a semi-cylindrical shape. It has a fourth recess and is hinged to the clamp body so that it can be opened and closed. By closing the clamp body toward the clamp body, the tubular collar is held in the columnar recess formed by the third recess and the fourth recess. A clamp lid, a clamp engaging portion provided on the clamp body and configured to be locked to the clamp lid, and having a predetermined length, one end being fixed to the clamp body and the other end Is a free end, and is provided with a strip-shaped connecting member that supports the tubular collar so as to be movable over its entire length.

[0007]

Since the tubular collar can freely move over the entire length of the belt-like connecting member, the electric wire is clamped at a position convenient for the operator, and the tubular collar holding the electric wire is arranged in the concave portion of the clamp body to clamp the lid. Lock the body to the clamp body.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show the configuration of an embodiment of a non-circular cross-section conductor holding device according to the present invention. As shown in the figure, the non-circular cross-section conductor gripping device 100 includes a tubular collar 10 and
The strip-shaped connecting member 14, the clamp body 1A, the clamp lid 1B, the T-shaped bolt 2, the spring 3, the spring receiving portion 4,
The push bolt 5 is provided.

The tubular collar 10 has a first half collar 10A, a second half collar 10B and a hinge 11. The outer shape of the first half-split collar 10A is formed into a substantially half-split cylindrical shape, and a non-circular cross-section conductor W is formed inside the first half-split collar 10A.
First concave portion C matching the half sectional shape including the protruding portion MA of
One. The second half collar 10B has an outer shape formed into a substantially half cylinder shape, and has a second recess C2 therein which matches the half cross section shape including the protrusion MB of the non-circular cross section conductor W. ing. These first half color 10
A and the second half collar 10B are hinged so that they can be opened and closed by a hinge 11. With such a configuration, when both are closed, the non-circular cross-section conductor W can be sandwiched in the space defined by the first recess C1 and the second recess C2 (see FIG. 2).

Further, the tubular collar 10 has a strip-shaped connecting member 14
Are connected to each other, one end of the strip-shaped connecting member 14 is fixed to the clamp body 1A by a fixing tool 15, and the other end is connected to the stopper 14
A is provided. The band-shaped connecting member 14 is formed of a band-shaped steel plate or the like.

The clamp body 1A has a semi-cylindrical third recess C3 and a storage space 1C for storing the spring 3. The clamp lid 1B has a semi-cylindrical fourth recess C4 and a bolt engaging portion 1G, and is hinged to the clamp body 1A by a hinge 9 so as to be openable and closable. With this configuration, when the clamp cover 1B is closed toward the clamp body 1A, the third recess C3 and the fourth recess C4 are formed.
The cylindrical collar 10 can be held in the cylindrical recess formed by (see FIG. 2).

The T-shaped bolt 2 is composed of a head portion 2A which is a clamp engaging portion and a rod-shaped portion 2B which is integral with the head portion 2A. The rod-shaped portion 2B is made of a cylindrical member, and a male screw portion is provided on the tail portion thereof. An insertion hole 1E into which the rod-shaped portion 2B of the T-shaped bolt 2 can be inserted is provided on one side of the storage space 1C of the clamp body 1A, and the rod-shaped portion 2B is the storage space 1C.
It is inside C. With such a configuration, T
The head portion 2A of the V-shaped bolt 2 is from the clamp body 1A to the rod portion 2
It is movable in the axial direction of B and is rotatable about the axis of the rod-shaped portion 2B. Therefore, when the head portion 2A of the T-shaped bolt 2 is moved to the clamp body 1A side in the axial direction of the rod-shaped portion 2B and rotated about the axis of the rod-shaped portion 2B by an angle of 90 degrees, the bottom surface of the head portion 2A is Can be engaged with the upper surface of the bolt engaging portion 1G of the clamp lid 1B to connect the clamp body 1A and the clamp lid 1B.

The spring 3 is a coiled spring and is located on the outer periphery of the rod-shaped portion 2B of the T-shaped bolt 2 in the storage space 1C of the clamp body 1A, and one end of the spring 3 is the lower surface on one side of the clamp body 1A. It is supported by a certain spring support portion 1D, and the other end is supported by a spring support body 6. With such a configuration, the spring 3 urges the head portion 2A of the T-shaped bolt 2 in a direction to approach the clamp body 1A.

Further, the spring receiving portion 4 comprises the above-mentioned spring support 6, the nut 7, and the fixing sleeve 8. The spring support 6 is formed of a flat plate-shaped member that supports the other end of the spring 3, and an insertion hole (not shown) into which the rod-shaped portion 2B of the T-shaped bolt 2 can be inserted in the central portion of the flat plate-shaped member.
Is provided. The nut 7 is screwed onto the male screw portion of the rod-shaped portion 2B of the T-shaped bolt 2 and is locked to the tail portion of the rod-shaped portion 2B by the fixing sleeve 8.

The push bolt 5 is provided on one side of the accommodating space 1C of the clamp body 1A and on the side opposite to the side where the insertion hole 1E is provided, and has a female screw formed therein. It is screwed into 1F and its tip is T in the storage space 1C.
It is configured to contact the tail portion of the rod-shaped portion 2B of the character bolt 2. Therefore, the push bolt 5 and the T-shaped bolt 2
The rod-shaped portion 2B and the nut 7 constitute a pressing means.

Next, a more detailed structure of the cylindrical collar 10 will be described with reference to FIGS. 3 and 4. As shown in the figure, the tip of the first half collar 10A has an engaging portion 13
A, and a locking piece 13B is provided at the tip of the second half collar 10B. The locking piece 13B is the engaging portion 13
The engaging portion 13A and the engaging piece 13B constitute an engaging means.

Further, a groove 16 is formed in the first half collar 10A and the second half collar 10B so as to go around them. This groove 16 is a strip-shaped connecting member 14
Are formed so that they can be stored. Also, this groove 16
The deviation prevention member 17 is provided so as to straddle a part of the above. In this deviation prevention member 17, the strip-shaped connecting member 14 is provided in the groove 1.
Prevent deviation from 6. Further, a stopper 14A is provided on the end of the strip-shaped connecting member 14 which is not fixed. The stopper 14A is formed of a member having a width narrower than the width of the groove 16, and the stopper 14A and the deviation prevention member 17 cause the cylindrical collar 10 to
It is connected to the clamp body 1A via the band-shaped connecting member 14. In this case, the tubular collar 10 can freely move within the length of the belt-shaped connecting member 14.

Next, a conductor gripping procedure using the above-mentioned non-circular cross-section conductor gripping device 100 will be described with reference to FIGS. Within the reach of the strip-shaped connecting member 14, the first half-cut collar 10
A or the second half collar 10B is opened, and the protrusion MA of the non-circular cross-section conductor W is provided in either the first recess C1 or the second recess C2.
Alternatively, MB is applied and matched, both half collars are closed by hand to sandwich the non-circular cross-section conductor W, and the engaging portion 13B is engaged with the engaging portion 13A. Open the clamp cover 1B, and open the third clamp body 1A.
Apply the closed cylindrical collar 10 to the recess C3,
The clamp lid 1B is closed by hand, and the tubular collar 10 is sandwiched between the clamp body 1A and the clamp lid 1B. At this time,
The band-shaped connecting member 14 is housed in the groove 16 on the outer periphery of the cylindrical collar 10 and does not interfere with the closing of the clamp mechanism. While holding the clamp lid 1B closed with one hand, rotate the head 2B of the T-shaped bolt 2 with the hand by an angle of 90 degrees with a special wrench or the like to move the head 2B of the T-shaped bolt 2 to the clamp lid 1B. It is locked to the bolt engaging portion 1G and temporarily clamped so that the clamp lid is not opened. Loosen the push bolt 5 with a tool such as a spanner and remove it (see Fig. 2).

The present invention is not limited to the above embodiment. The above-described embodiment is an exemplification, and has substantially the same configuration as the technical idea described in the claims of the present invention, and any device having the same function and effect can be realized by the present invention. It is included in the technical scope of the invention.

For example, in each of the above-described embodiments, an example in which the engaging portion 13A and the engaging piece 13B are used as the engaging means has been described, but the present invention is not limited to this, and the first half collar 10A. Any material may be used as long as it can engage the second half collar 10B with each other.

Further, in each of the above-mentioned embodiments, an example in which the band-shaped connecting member 14 is used as the connecting member has been described, but the present invention is not limited to this, and a linear or wire-shaped connecting member may be used. . What is essential is that the member has a certain degree of flexibility, can be fixed to the clamp body 1A, and can be guided by the groove on the outer periphery of the tubular collar 10 and the deviation prevention member 17.

[0022]

As described above, according to the present invention,
Since it is mechanically locked by the locking means, the half collar can be attached to the non-circular cross-section conductor by itself, and the conductor does not shift in the collar. Further, since the first half collar and the second half collar are guided by the groove and the deviation preventing means without departing from the groove and are connected to the clamp body, the half collar is also located in the vicinity of the conductor away from the clamp mechanism. Can be easily attached to the conductor having a non-circular cross section, and then can be securely held by the clamp mechanism. Therefore, excellent workability and reliability can be obtained.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view showing a configuration of a non-circular cross-section conductor gripping device according to an embodiment of the present invention before being clamped.

FIG. 2 is a partially cutaway side view showing the configuration of the non-circular cross-section conductor gripping device shown in FIG. 1 in a state after being clamped.

3 is a front view showing a more detailed structure of the tubular collar shown in FIGS. 1 and 2. FIG.

FIG. 4 is a partially cutaway side view showing a more detailed structure of the tubular collar shown in FIGS. 1 and 2.

[Explanation of symbols]

 1A Clamp main body 1B Clamp lid 1C Storage space 1D Spring support part 1E Insertion hole 1F Bolt hole 1G Bolt engaging part 2 T-shaped bolt 2A Head part 2B Rod-like part 3 Spring 4 Spring receiving part 5 Push bolt 6 Spring support 7 Nut 8 Fixing Sleeve 9 Hinge 10 Cylindrical Collar 10A, 10B Half Collar 11 Hinge 12A Projection Storage Groove 12B Projection Storage Groove 13A Engagement Part 13B Engagement Piece 14 Band-shaped Connecting Material 14A Stopper 15 Fixing Tool 16 Groove 17 Deviation Prevention Member 100 Non-circular cross-section conductor gripping device C1 First recess C2 Second recess C3 Third recess C4 Fourth recess MA, MB Projection W Non-circular cross-section conductor

Claims (2)

[Claims] 1. A first half-cut collar formed in a substantially half-cylindrical shape and having a first recess therein which matches the half-cut cross-sectional shape of a non-circular cross-section conductor; The second recess has a second recess that matches the shape of the half-section of the conductor having a circular cross section, and a second half collar that is hinged to the first half collar so that the first half collar can be opened and closed. A cylindrical collar that holds the non-circular cross-section conductor in a space formed by the second concave portion, a clamp body having a semi-cylindrical third concave portion, and a semi-cylindrical fourth concave portion, and the clamp. A clamp lid that is hinged to the main body so as to be openable and closable, and that closes to the clamp main body side to sandwich the tubular collar in the cylindrical concave portion formed by the third concave portion and the fourth concave portion; It is provided so that it can be locked to the clamp lid. A clamp engaging part that has a predetermined length, one end is fixed to the clamp body and the other end is a free end, and the tubular collar is supported so as to be movable over its entire length. A device for holding a conductor having a non-circular cross section, which is provided with a strip-shaped connecting member. 2. The tubular collar includes the first and second tubular collars.
Locking means for maintaining the state in which the half collar holds the non-circular cross-section conductor, a groove for locating the band-shaped connecting member on the outer circumference, and a deviation preventing member for preventing the band-shaped member from deviating from the groove. The non-circular cross-section conductor holding device according to claim 1, further comprising: