JP2002345116A - Installation device for spiral hanger - Google Patents

Abstract

PROBLEM TO BE SOLVED: To smoothly move connected spiral hangers along a messenger wire. SOLUTION: Retaining units 10 are attached detachably to connection parts between respective spiral hangers 1A and 1, which are successively wound around a messenger wire, such as a support wire, provided between poles. The respective retaining units 10 are successively connected with each other by a connecting rope 9, whose leading end is pulled by a pulling rope 3 provided ahead of the leading spiral hanger 1A.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spiral hanger which is applied when an existing cable is bundled or when a new cable is installed (newly installed) with a long span to support the cable. The present invention relates to a erection device.

[0002]

2. Description of the Related Art To install a spiral hanger between utility poles, from one utility pole side to another utility pole side, along a stretched wire such as a support wire installed between utility poles, and to a previous stage. Generally, the next stage is connected and sent out while being connected by a connecting material, and then sent out. However, when the span becomes long (if the sending out distance is long), the frictional resistance with the tension wire increases, and The force of sending out increases beyond the elastic range, and the spiral hanger is deformed and cannot be sent out.

The present invention has been made with the aim of providing a device capable of performing the work smoothly, paying attention to the drawbacks that occur during the conventional work of installing a spiral hanger.

[0004]

Means for Solving the Problems A mooring material is appropriately detachably attached to a connection portion of each spiral hanger which is wound around a tension wire such as a support wire arranged between utility poles and is sequentially assembled,
The basic means is that the moorings are sequentially connected by a tow rope for moving the spiral hanger.

[0005] The spacing (distance) between the moorings connected by the tow ropes (which may be towed from the ground or from a pillar) is equal to each other (distance).
The interval is desirably substantially equal to the length of each spiral hanger. Even if not equal, there is no inconvenience as long as it is shorter than the axis interval when the spiral hanger is extended due to elasticity. However, even if there is no inconvenience,
The spacing should be of the order of magnitude when the spiral hanger is slightly extended by elasticity.

However, it is not always necessary to provide a mooring material at each of the connecting portions of the spiral hanger, but even in this case, care must be taken so that the traction force of the tow rope can be transmitted to the spiral hanger via the mooring material. It is.

[0007] The tow rope and the rope connecting the mooring material can be separated from each other. Therefore, the rope is connected to each of the spiral hangers which are wound around a tension wire such as a support wire disposed between telephone poles and sequentially assembled. The mooring members may be detachably assembled, and the mooring members may be connected to each other by a connecting rope pulled by a pulling rope for moving the spiral hanger. However, in this configuration, the "traction rope" and the "connection rope" may be applied by one rope (the "traction rope" referred to in the above basic means), and the connection rope is continuous (as a single rope). It does not have to be.

Although the tow rope or the connecting rope should be a non-stretchable one, it is not necessarily inconvenient for the rope to have some expansion and contraction as long as it can be processed as a design range.

[0009] The term "removable" means that it is not left unnecessarily after the installation work, and it is desirable that it can be removed by operating the operation rod from the ground after the installation.

[0010] Further, the extension wire means a support wire (messenger wire) or an existing cable. In short, the extension wire is the existing extension wire which receives the weight of the spiral hanger and is disposed between telephone poles.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of a spiral hanger erection device according to the present invention. FIG. 1 is a partial front view, FIG. 2 is a perspective view of a spiral hanger connecting portion, and FIG. is there.

The apparatus according to the embodiment uses one of the power poles d on one side of the power pole d in order to unite the existing old cables Ca and Ca ′ stretched between the power poles d and d ′ and the new cable Cb newly installed between the power poles. Are connected to the connecting poles 2 to connect the spiral hangers 1A, 1... Between the utility poles. 4 is used.

The leading roller 4 is composed of a roller main body 5 rotatably supporting an upper roller 6 and a lower roller 7 so that the upper roller 6 serves as a reference line for unifying the upper cable 6.
a, and the lower old cable Ca ′ is forcibly mounted on the lower roller 7 so as to be detachably attached to the upper and lower old cables Ca, Ca ′ (this configuration). Is omitted), and the roller main body 5 is used.
The upper roller 6 rolls and moves on the upper old cable Ca by pulling the tow rope 3 connected to the connecting piece 8 protruding from the lower cable 7. The spiral hangers 1 </ b> A, 1 that are forcibly brought close to the upper roller 6 side and move following the leading roller 4 are held by the spiral hanger 1 </ b> to perform the above-described unity.

The existing upper and lower old cables Ca, C
As described above, the leading roller 4 is assembled (on one of the utility poles d) with respect to a ′, and the towing rope is attached to the connecting piece 8 of the leading roller 4 such that the tip is disposed forward of the leading roller 4. The connecting rope 9 and the new cable Cb are connected to each other such that the connecting cable 3 is disposed behind the leading roller 4 (the new cable Cb is connected to the connecting piece 8 via the cable grip 15), and is pulled. While towing the rope 3, the foremost spiral hanger indicated by reference numeral 1A in the drawing is wound around the new and old cables Ca, Ca ', Cb. Hereinafter, the towing of the towing rope 3, the cables Ca, Ca', Cb will be described.
Of spiral hanger 1 at the next stage and connecting material 2 of spiral hanger 1A, 1 or 1, 1
By repeating each work of connection by
′, A new cable Cb is installed,
And the old cables Ca and Ca 'are bundled.

In the middle part of the connecting rope 9 of the embodiment, a position is set at a position abutting on the connecting part of the connecting material 2 of the spiral hanger 1A, 1 or 1, 1 (an interval substantially equal to the length of the spiral hanger 1). The mooring member 10 is assembled, and a connecting portion (2 connecting members) between the mooring member 10 and the spiral hanger 1A, 1 or 1, 1 is connected to the spiral hanger 1A, 1, or 1, 1 The spiral hanger 1 can be detachably attached to each other during the connecting operation, and the towing rope 3 can be pulled after this assembling operation.
A, 1 moves along the old cables Ca, Ca '. That is, the traction force of the traction rope 3 is
Since it is transmitted to each spiral hanger 1A, 1, ... connected by the connecting material 2 via the connecting rope 9 and the mooring material 10,
The lack of rigidity of the hangers 1A, 1 is compensated for, and the hangers 1A, 1 are smoothly moved along the cables Ca, Ca 'without being deformed.

However, if the traction force of the traction rope 3 is transmitted to the spiral hangers 1A, 1 via the mooring member 10, the mooring member 10 is not necessarily required to be disposed on the entire connecting portion (two connecting member portions). And not.

In the case of the embodiment (shown in FIGS. 1 and 3), a new cable Cb is newly installed, and
b is arranged inside the spiral hangers 1A, 1 so as to be bundled with the old cables Ca, Ca ', but when the bundled old cables Ca, Ca' without the new cable Cb are to be bundled. Alternatively, the present apparatus can be applied to a case where the lower old cable Ca ′ is omitted together with the new cable Cb and the spiral hangers 1A and 1 are erected along the upper old cable Ca. It is a matter of course that the device according to the present invention can be applied even when a support wire (messenger wire) is used instead of the old cable Ca.

Further, the leading roller 4 is convenient for bundling a pair of existing tension wires (like the old cables Ca, Ca 'or cables and supporting wires as in the embodiment). (Because a pair of tension wires are forced to be at a fixed separation distance position at the position of the leading roller 4, this leading roller 4 is not necessarily used.

The connecting member 2 is a well-known, male member 2a.
Each spiral hanger 1 includes a male member 2a at one end and a female member 2b at the other end, and the male member 2a or the female member 2b at the preceding stage in the moving direction and the subsequent member. By locking the female member 2b or the male member 2a of each other, the spiral hangers 1, 1 can be easily connected.

The mooring member 10 is formed of a square (tubular) frame main body 10A. The mooring member 10 is engaged with the center of one end edge of a pair of opposing frame pieces 11 on the narrow side of the frame main body 10A. A notch 12 is provided, and one of the frame pieces 13 and 13 ′ on the wide side is provided.
3 is provided with a pair of through holes 14.

The mooring member 10 is connected to the connecting rope 9 through the through holes 14, 1 through one opening side of the frame main body 10A.
4 so as to be drawn out from the other opening side,
The connecting rope 9 is attached to the middle portion of the connecting rope 9 at substantially the above-mentioned interval.
4 is maintained by the contact resistance.

The mooring member 10 is provided with the pair of spiral hangers 1A, 1 connected by the connecting member 2 with the ends of the spiral hangers 1A engaged with the engaging notches 12, and the connecting member 2 is placed in the frame 10A. 9 is attached to the connecting portion of the hanger 1A, 1 or 1, 1 which is sequentially connected so as to overlap the upper side of the end of one hanger 1 so as to engage with the one engagement notch 12, and to be spirally connected. In the longitudinal direction of the hangers 1A, 1, the connecting member 2 is engaged with the frame piece 11 (the edge of the engaging notch 12), and in the radial direction of the spiral hangers 1A, 1, the connecting rope 9 is notched. Engagement of the connecting rope 9 with the engaging notch 12 based on the locked state of the connecting rope 9 (by tightly fitting the rope 9 into the engaging notch 12) or the tension state of the connecting rope 9 by being pulled by the tow rope 3. State retention More, spiral hanger 1A,
1 and the mooring member 12 are maintained in the mutually assembled state.

The connecting rope 9 is operated from the ground with an operating rod.
Is released from the engagement notch 12, the assembled state of the mooring member 10 and the spiral hangers 1A, 1 is released.

In the embodiment, the mooring member 10 is attached to the single connecting rope 9 at substantially equal intervals.
The mooring member 10 may be attached as a single rope in which the and the towing rope 3 are integrated (or connected and integrated), and the connecting rope 9 is a spiral hanger 1A, 1 It may be arranged every other time or between the moorings 10. In any case, by pulling the rope as a tow, it is sufficient that the pulling force can be transmitted to the mooring member 10 via the rope for connection. The spiral hanger 1 starts with the movement of the retaining material 10 (from one pole d to the other pole d ').
A, 1, ... move.

The mooring member 10 need not be limited to the structure of the embodiment.

[0026]

Since the present invention has the configuration as described above,
Since the traction force of the traction rope is transmitted to each connected spiral hanger via the mooring material, it is possible to compensate for the lack of rigidity of the whole connected spiral hanger and to smoothly move the spiral hanger along the tension wire. it can.

[Brief description of the drawings]

FIG. 1 is a partial front view.

FIG. 2 is a perspective view of a spiral hanger connecting portion.

FIG. 3 is a schematic explanatory view.

[Explanation of symbols]

 1A, 1 Spiral hanger 3 Towing rope 9 Connecting rope 10 Mooring material

Continuation of the front page (72) Inventor Takahiro Oikawa 167 Kamigohongo, Matsudo-shi, Chiba F-term in Iwabuchi Co., Ltd. F-term (reference) 5G367 GA00 GA03 GB01 GB01 GC04 GC02

Claims (2)

[Claims] 1. A mooring member is detachably attached to a connecting portion of each spiral hanger wound around a tension wire such as a support wire disposed between telephone poles and sequentially assembled, and each mooring material is attached to the spiral hanger. Spiral hanger erection equipment connected sequentially by tow ropes to move 2. A mooring member is detachably attached to a connecting portion of each spiral hanger which is wound around a tension wire such as a support wire arranged between telephone poles and sequentially assembled, and each mooring material is moved by the spiral hanger. Spiral hanger erection device connected to each other by a connecting rope pulled by a pulling rope.