JP2001186615A - Leading tool for pull cord for cable - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a leading tool that can be relatively smoothly moved along a self-supporting cable or suspension wire. SOLUTION: The leading tool for a pull cord for cables is placed inside a spiral cable suspending tool 8 supported on a suspension wire 24 or self-supporting cable 25 strung between poles, connected at its tail end with the pull cord 14 for cables with a pressing wire body 9 composed of a flexible material the length of which corresponds to the distance between the poles, and has on its main body piece 1 long in the fore-and-aft direction a pair of opposite erected anchoring pieces 20 and 20' the upper ends 20b and 20'b of which are anchored to the suspension wire 24 or self-supporting cable 25 placed in the recesses 23 and 23 formed in the opposite faces of the anchoring pieces 20b and 20'. A support piece 2 is installed to the main body piece 1 so that the support piece can be freely swung in the fore-and-aft direction through a spindle 4 and the pair of the anchoring pieces 20 and 20' are formed on the support piece 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a helical cable hanger wound around a suspension line or a self-supporting type cable (SSD) erected in the middle of a power line, and erected between the electric poles. When a cable is newly installed between utility poles so as to be supported, a cable pull cord used to move the cable along the suspension line or the self-supporting type cable (or spiral cable suspension device). It is related to a leader. In other words, the cable pulling cord is pulled from one telephone pole to the position of the other telephone pole, and the cable connected to the end side of the cable pulling cord is received and guided by the spiral cable suspender and moved. Therefore, the present invention relates to a lead device of a cable pull cord used for moving the tip of the cable pull cord from one power pole side to the other power pole position. Things.

[0002]

2. Description of the Related Art In order to lay a cable using a hanging wire or a self-supporting cable installed between telephone poles, the self-supporting cable or the hanging wire (messenger wire) is used.
In this method, a helical cable suspender is erected and the cable is supported by the hanger and installed between utility poles.However, to arrange a cable along a suspension line or a self-supporting cable, In addition, a cable pull cord for pulling the cable must be passed through the spiral cable hanger. Conventionally, the only way to penetrate the cable is to hang it on the support wire or use a high-altitude worker. In either case, pull the cable along the helical cable hanger by hand. The tip of the string is moved from one telephone pole to the other telephone pole.

In each of the conventional examples, the workability is lacking because the worker moves the drawstring for the cable along the spiral cable hanger while moving along the hanging wire or the self-supporting type cable.

[0004] For this reason, the present inventors have determined that the workability is excellent because there is no need to arrange an operator between telephone poles, and that the work is arranged inside a helical cable hanger supported by a self-supporting cable or the like. Moreover, a cable pull cord is connected to the rear end of the main body piece through a pressing wire made of a flexible material having a length corresponding to the distance between the power poles. And a pair of hooking pieces which are hung on the hanging wire or the self-supporting cable with the hanging wire or the self-supporting cable interposed between the hooking pieces. A lead device for a cable pulling string that has been erected is proposed first (Japanese Patent Application No. 10-366151).

[0005]

The structure proposed by the present inventors is excellent in workability as intended by the present inventors, but a pair of standing members which are opposed to the main body piece. Is fixed, so that the main piece in the curved section where the self-supporting cable (or suspension line) meanders violently,
Close to the inner edge (spiral) of the spiral cable hanger,
Movement along the self-supporting cable becomes difficult, and therefore, the spiral cable hanging tool in the curved section is pushed and spread to move the main piece, that is, the leading tool, and this pushing and spreading work is complicated. Not only that, in some cases, it is impossible to move.

The present invention has been made in view of the drawbacks of the conventional example, and has as its object to provide a leading tool that can move relatively smoothly along a self-supporting cable (or suspension line). It was done.

[0007]

Means for Solving the Problems A cable is disposed inside a suspension cable erected between utility poles or a helical cable suspension supported on a self-supporting cable, and has a rear end corresponding to the distance between the utility poles. The cable pull cord is connected via a pressing wire body made of a flexible material of the above, a main body piece that is long in the front and back, the hanging wire or the self-supporting cable is inserted into a concave portion provided on the opposite surface of the hooking piece. A leading member for a pull cord for a cable, wherein a pair of hanging pieces are erected to interpose and suspend the upper end of the hanging piece on the hanging wire or the self-supporting type cable; , A support piece is swingably mounted via a support shaft extending in the front-rear direction, and the support piece is provided with the pair of engaging pieces.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view, FIG. 2 is a partially cutaway front view of the lead, and FIG. FIG. 4 is a bottom view of FIG. 2, FIG. 5 is a sectional view taken along line A5-A5 of FIG. 3, and FIG. 6 is a sectional view taken along line A6-A6 of FIG. 7
FIG. 4 is a sectional view taken along line A6-A6 of FIG. 3 in a state used for a suspension line.

In the drawing, reference numeral 1 denotes a main piece of the leading tool A,
Is made of a metal piece long in the front-rear direction having a slightly square cross-sectional shape in which the front end side and the rear end side are gradually narrowed.
Provide a long window 3 (long in the front and back) along the longitudinal direction of
The support piece 2 is engaged with the window 3, and both front and rear ends thereof are swingably (rotatably) attached to the main body piece 1 via a support shaft 4.

The support piece 2 of the embodiment has a support shaft 4
The support shaft 4 is loosely fitted and supported on the support piece 5 screwed to the main piece 1 side, and is swingably attached to the main piece 1 as described above. The means for assembling the main body piece 1 with the main body piece 1 may be appropriately selected. In short, it is only necessary to mount the main body piece 1 via a support shaft extending in the front-rear direction.

A triangular leading piece 7 in a plan view is attached to the leading end side of the main piece 1 by hinge means 6 so as to be able to move up and down. The leading piece 7 is a helical cable suspending tool 8 while the leading tool A is moving forward. When the contact is made, the object is depressed against the bias of the coil spring 6a provided in the hinge means 6, and the impact due to the contact is reduced.

Note that the leading end 7a of the leading piece 7 is shifted from the center position along the longitudinal direction of the main piece 1 because the leading piece 7 is shifted from the inner peripheral side to the outer peripheral side of the spiral cable hanger 8. This prevents the leading piece 7 (the leading end of the main piece 1) from slipping out and keeps the leading piece 7 or the main piece 1 within the inner peripheral edge (inside) of the spiral cable hanger 8.
Therefore, the shape of the leading piece 7 and the coil spring 6a
When the leading piece 7 hits the spiral cable hanging tool 8 by the action of the above, the leading piece 7 slightly changes the advancing direction and guides the main body piece 1 in the axial direction of the spiral cable hanging tool 8.

At the rear end of the main body piece 1, a flexible pressing wire 9
A connecting member 13 for connecting the connector 10 is provided on the extension tool 12 having a connector 10 at the front end and a connection hook 11 at the rear end, and the extension tool 12 (pressing wire 9).
Through the cable pull cord 14 (the connection hook 11
(Using).

Note that the flexibility of the pressing wire 9 means a property that the pressing wire 9 bends and deforms in accordance with the curved path formed by the helical cable hanging device 8 and that the pressing force can be transmitted to the leading device A.

A notch 15 is provided at the center of one side of the support piece 2 along the longitudinal direction. The notch 15 projects from the lower end of the middle of the notch 15 by approximately the same thickness as the partition rod 16. Receiving portions 17, 17 for the partitioning rods 16, 16 are provided.

Further, screw holes 1 are provided at both front and rear ends of the notch 15.
8, 18, and a pair of partitioning rods 16, 16, which are screwed into the screw holes 18, 18 and protrude from the support piece 2, and the pair of partitioning rods 16, 16, Base pieces 20a, 20 'of a pair of locking pieces 20, 20' sequentially superimposed on one side of the support piece 2 located on the same plane.
a, and each of the leaf spring 21 and the fastening piece 22 is supported.

The partitioning rod 16 has a plate thickness equal to the depth of the notch 15 and a surface located on the same plane as the surface of the support piece 2.
And a notch 16a which engages with and engages with one of the latch pieces 2 when the support rod 19 is pivoted about the support rod 19 when standing.
0, and stands up through the window 20c formed on the side of the base piece 20a, engages with the engaging portions 20c ', 20c' on both sides of the window 20c to maintain the standing state, and the recess formed by the hooking piece 20b. The entrance 23 is closed and the suspension line 24 is inserted into the recess 23.
(FIG. 7).

The pair of latching pieces 20 and 20 'are respectively composed of the base pieces 20a and 20'a and the base pieces 20a and 20'.
'A, and the hooking pieces 20b, 20'b are recessed on the opposite surface side between the hooking pieces 20, 20'. The base pieces 20a, 2 which are curved in cross section with the base pieces 20a, 2
0'a is provided with a pair of through-holes (the symbols are omitted because they are provided corresponding to the support rods 19, 19), and the support rod 1 is provided in the through-hole.
9 and 19 are attached to the support piece 2 by penetrating them.

The latching pieces 20 of the latching pieces 20, 20 '
b, 20'b, so that the cable portion (main body portion) 25a of the self-supporting cable 25 (comprised of the cable portion 25a and the suspension line portion 25b) is engaged with the recessed portions 23, 23 '. Connect the upper ends of the stopper pieces 20b and 20'b to the cable section 2
5a (FIGS. 1 and 5), and in the case of the suspension line 24 (FIG. 7), as described above, the recessed portion 23 on the one hooking piece 20 side is closed by the partitioning bars 16 and 16. The hanging wire 24 is engaged with the recess 23 'on the other hooking piece 20' side, so that the upper end of the hooking piece 20'b is locked to the hanging wire 24.

The base pieces 20a, 20 of the hook pieces 20, 20 '
The leaf spring 21, which is attached to the support piece 2 by superimposing it via a 'a, is formed of a plate piece which is formed by bulging the side surface of the fastening piece 22 and has a pair of through holes (support rods 19, 19 and 19). The supporting rods 19 and 1 are not shown since they are provided correspondingly.
9 is supported by the support rod 19 as described above, and is assembled to the support piece 2. The base piece 20a of the latching piece 20 is pressed by the pressing force based on the elasticity of the plate spring 21 so that the support piece 2
To keep the partitioning rod 16 engaged with the window engaging part 20c 'when the partitioning rod 16 is standing up, and to always press the fastening piece 22 against the head 19a of the supporting rod 19.

The tightening piece 22 is connected to the pair of support rods 1.
9 and 19, a pair of long holes 26, 26 are provided, and tapered edges 27, 27 are provided so that the plate thickness is gradually increased from one end in the longitudinal direction of each long hole 26 to the other end. The head 19a of the support rod 19 slides on the side edge along the longitudinal direction of the elongated hole 26 existing at the tapered edges 27, 27 (by the urging of the leaf spring 21). Long hole 26, through-hole of leaf spring 21, hooking piece 2
The through holes provided in the base pieces 20a, 20'a of 0, 20 'and the through holes (not shown) provided in the partitioning rod 16 are successively screwed into the screw holes 18, and screwed into the screw holes 18. Is adjusted, the elastic force (biasing force) of the leaf spring 21 interposed between the fastening piece 22 and the hook piece base piece is adjusted.

Thus, the connector 10 provided at the tip of the pressing wire 9 having the cable pull cord 14 connected to the rear end thereof is connected to the connecting member 13 of the main piece 1 so that the yoke tool 12 and the leading tool A are connected. They are connected to each other, and the fastening piece 22 of the guide A is slid in the front-rear direction of the main body piece 1 to replace the thick portion of the fastening piece 22 forming the tapered edge 27 located at the support rod 19 with a thin wall. When the portion is located on the support rod 19, the base piece of the tightening piece 22, the leaf spring 21, and the hook pieces 20, 20 'interposed between the head 19a of the support rod 19 and the support piece 2 and in close contact with each other. 2
The close contact state of 0a and 20'a is released, and a gap is appropriately formed between the members 22, 21, 20a and 20'a by the action of the leaf spring 21.

Utilizing this gap, a pair of hook pieces 20 and 20 '(the base pieces 20a, 20a, 20 '
When a) is moved apart along the axis of the support rods 19, 19 and separated from each other, the hooking pieces 20, 20 '
However, the tips of the hooking pieces 20b, 20'b which are close to each other are separated from each other, and a gap is formed between the tips so that the cable portion 25a of the existing self-supporting cable 25 can relatively enter and exit. (FIG. 6), and the leading tool A is supported by the self-supporting cable so that the cable portion 25a exists in the recessed portions 23, 23 'formed by the hooking pieces 20b, 20'b using this gap. 25, when the partitioning rod 16 is detached from the notch 15 due to interruption of the urging of the leaf spring 21, after the partitioning rod 16 is engaged with the notch 15, the tightening piece 22 is returned to the original position. That is, when the thick portion of the tapered edge 27 is moved and returned so as to be located at the (head portion 19a) of the support rod 19, the leading tool A is attached to the cable portion 25a of the self-supporting cable 25 by the hook piece 20. , 20 'hooked and assembled .

When a new cable is erected using the hanging wire 24 laid between the utility poles, the spiral cable hanger 8 is sequentially connected to the hanging wire 24 as in the case of the self-supporting cable 25. The fastening piece 22 of the leading tool A, which is suspended and rotated and connected to the rear end of the main piece 1 and the wire tool 12 or the like.
Is moved (slid) in the forward direction of the main body piece 1 to support the support rod 1.
Instead of the thick part of the tapered edge 27 located at the nine parts, a thin part is located at the supporting rod 19 to release the tight state of the fastening piece 22 and the like, and the engaging part piece 20b , 20 '
b using the gap formed between the tips of the hooks 20b, 2
0b, the suspension line 24 is inserted into the recessed portions 23, 23 '.
The leading tool A is combined with the hanging wire 24 so that the hanging wire 24 is provided, and the hanging wire 24 is inserted into the recessed portion 23 on one of the hook pieces 20 ′.
When the partitioning rods 16 and 16 are rotated about the support rod 19 so as to be deviated inward, the partitioning rods 16 and 16 stand up through a window 20c formed in one of the latching pieces 20 to be raised. When the fastening piece 22 is returned to the original position in the same manner as described above in this state, the hanging wire 24 to the recessed part 23 on the one hooking piece 20 side is provided. Relative movement engagement is regulated by the partitioning rod 16, and the hanging wire 24 is connected to the partitioning rod 16 and the other one of the hooks 2.
0 ′, the leading tool A is connected to the suspension line 24.
Assembled in

Then, when the leading tool A is pressed from the one utility pole side to the other utility pole side, the leading tool A is pressed from the one utility pole side to the other utility pole side. While inscribing the tool 8,
0, 20 ′ is a cable part 25 of the self-supporting cable 25.
a or guided by the suspension line 24 and moved to the other one of the utility poles, and when the other one of the utility poles is pulled by the yoke tool 12, that is, the pushing wire 9, it is pulled by the pushing wire 9, The tip of the pull cord 14 moves from the one power pole side to the other power pole side inside the spiral cable hanger 8, and then attaches a cable to the end of the pull cord 14, The cable is easily added by pulling the cable, and it is installed between telephone poles.

During such an operation, the leading wire A is pressed by the pressing wire 9 to push the leading wire A, and while the leading wire A is moving forward, the main body piece 1 comes into pressure contact with the spiral cable suspending tool 8 to reach the curved portion, thereby preventing the forward movement. Even if it is rare, the support piece 2 and the main piece 1 assembled to the cable portion 25a or the suspension line 24 via the hook pieces 20 and 20 ',
Since they are swingably (rotatable) assembled to each other, they are swung to avoid a press-contact state, and the leading tool A is smoothly advanced.

[0027]

The present invention has the configuration described above,
During the movement of the hanging piece or the support piece along the self-supporting cable or the suspension line, the main piece can swing with respect to the support piece,
The self-supporting cable or the like violently meanders and comes into close contact with the inner diameter of the spiral cable hanger, whereby the passage narrows and also swings at a location that becomes a barrier to advance, thereby avoiding the close contact and smooth forward operation. Can do it.

[Brief description of the drawings]

FIG. 1 is a front view.

FIG. 2 is a partially cutaway front view of a leading device.

FIG. 3 is a partially cutaway plan view of FIG. 2;

FIG. 4 is a bottom view of FIG. 2;

FIG. 5 is a sectional view taken along line A5-A5 in FIG. 3;

FIG. 6 is a sectional view taken along line A6-A6 of FIG.

FIG. 7 is a sectional view taken along line A6-A6 of FIG. 3 in a state used for a suspension line.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main piece 2 Supporting piece 4 Support shaft 8 Spiral cable hanger 9 Pressing wire 14 Cable pulling cord 20, 20 'Hanging piece 24 Hanging line 25 Self-supporting cable

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hiroshi Kato 2-3-1, Otemachi, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation (72) Ryoichi Kaneko 2-3-3, Otemachi, Chiyoda-ku, Tokyo No. 1 Nippon Telegraph and Telephone Corporation

Claims (1)

[Claims] 1. A flexible wire having a length corresponding to the distance between the power poles, which is disposed inside a suspension wire suspended between power poles or a helical cable hanger supported by a self-supporting cable. Connecting the drawstring for cable through a pressing wire made of a material, the main body piece long in the front and back, with the hanging wire or the self-supporting cable interposed in the recess provided on the opposing surface of the hanging piece, In a leading device for a pull cord for a cable in which a pair of hooking pieces are erected relative to the hanging wire or the self-supporting cable, and a pair of hooking pieces are erected, a supporting piece is provided on the main piece. A lead for a cable pulling cable, which is swingably mounted via a support shaft extending in the front-rear direction, and wherein the pair of hooking pieces are provided on the support piece.