JPH033607A - Passage of protector through drawing wheel and protector passing through type drawing wheel - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a method for passing a protector through a track extension car and a protector passing type extension car (hereinafter simply referred to as a track extension car) used therein.

In this specification, the term "electric wire J" includes not only ordinary power transmission lines, but also communication cables such as optical fiber cables, and various wires and ropes used in wire extension work. Furthermore, the term "protector" refers not only to a joint protector used at a connecting part of an electric wire (but also includes a rigid body part interposed in the middle of the electric wire).

<Prior art> As a conventional example of this type of technology, for example, Japanese Patent Application Laid-open No. 56-
As shown in Japanese Utility Model Publication No. 94909 or Japanese Utility Model Publication No. 63-9214, there is a method in which a support member is used as an auxiliary support to allow the protector to pass through.

<Problems to be Solved by the Invention> This prior art is excellent in its own way, but the problem is that it actually requires quite a difficult work of attaching and detaching the support member, or that the capstan does not move in the direction of wire extension. This method cannot be said to be the best as it is difficult to apply to a double capstan type track rolling stock that is provided as a pair at the front and rear.

Therefore, in this invention, a method of passing a track rolling car with a protector is particularly applicable to double capstan type track rolling cars, and also allows the protector to pass the track rolling car without using an auxiliary jig such as a support member. The aim is to provide track extension cars for use therein.

The need for the protector to pass the track rail car is explained in the above-mentioned publication, so it will be omitted here.

Specifically, this is a method for passing a protector in a track rolling stock that is provided with a pair of front and rear capstans in the line running direction, and in normal times when only electric wires are passing, Both capstans should be rotated on their own axis to let out the electric wire, and when the protector enters the entrance side of the railway car, both capstans should be revolved around an axis that passes through the center point between the two capstans. , the protector is brought to the exit side without rotating around the capstan, and thereafter both capstans are rotated on their own axis and the protector is fed out together with the wire as usual. In addition to providing a passing method, a pair of capstans provided in the front and rear in the direction of line extension, a drive means for rotating each of the pair of capstans, and an axis passing through the center point between the two capstans. To provide a railway rolling stock comprising a driving means for revolving the railway rolling stock.

According to the way this protector passes the track rolling stock and the track rolling stock,
When the protector passes through the railcar, both capstans revolve around an axis that passes through the center point between the two capstans, so that the protector comes to the exit side without rotating around the capstans.

Therefore, the protector can easily pass through the track rolling stock without using an auxiliary jig such as the support member in the prior art described above.

Example of implementation Embodiments of the present invention will be described below with reference to the drawings.

As seen in FIG. 1, the railway rolling stock l according to the present invention is
It includes a mechanism section 2 and a pair of capstans 3a and 3b provided in the front and rear directions in the wire extension direction.

The mechanism section 2 includes a pair of capstans 3a and 3b.
A drive means 4 for rotating each capstan and a drive means 5 for causing the capstans 3a and 3b to revolve around an axis passing through the center point S between the capstans are housed.

As these drive means 4.5, for example, a coupling 9 is provided which can be selectively connected to the drive shaft 8 connected to a drive source consisting of a motor 6 and a speed reducer 7, and a coupling 9 is provided that can be selectively connected to the drive shaft 8 and the rotation shaft 1O110. and gear 11 and gear 12.12
A method can be used in which the gear 11 is selectively connected by moving the gear 11 forward and backward as indicated by the arrow Z using the operating means 11m.

The capstans (3a, 3b) are provided with a plurality of independent guide grooves 1 to stabilize the winding state of the electric wire W.
3.13, °'-゛・ are provided, but these guide grooves 13.13, °''-pa°- are set at a half pitch between the front capstan 3a and the rear capstan 3b. It has been shifted.

The line extension work using this line extension car 1 is as follows.

Normally, when only the electric wire W is passing through, the electric wire W is let out by rotating both capstans 3a and 3b (rotation as indicated by arrow X).

In other words, the electric wire W sequentially advances from the population side to the exit side while repeating half a rotation around each capstan 3a, 3b according to the rotation of each capstan 3a, 3b, and is unwound from the extension car l. go.

However, as shown in FIGS. 2 and 3, when the protector P enters the entrance side of the railway car, both capstans 3a and 3b are rotated by the driving means 5 (rotation in the direction of arrow Y). let Naturally, it does not rotate during this revolution.

Then, in accordance with this revolution, the electric wire W is unwound from the capstan pair in such a way that it is wound up at the inlet side and at the same time unwound at the outlet side, but in this case, unlike the above-mentioned case of rotation, , the electric wire W connects each capstan 3a
, 3b, that is, without moving relative to each capstan 3a, 3b (or a pair of capstans). In response to this, the protector P also advances sequentially from the inlet side to the outlet side without rotating around each capstan 3a, 3b (FIG. 4).

When the protector P reaches the exit side, both capstans 3a and 3b are then rotated on their own axis in the same way as in normal times. Then, the protector P is let out from the wire extension car 1 together with the electric wire W. In other words, the protector P can easily pass the track extension car l without causing any trouble.

However, since this unwinding due to revolution is due to winding at the entrance side and unwinding at the exit side, the winding state (position) of the electric wire W changes from the state shown in Fig. 2 to the state shown in Fig. 4 as it is unwound. change in state.

Therefore, when the passage of the protector P is completed, both the capstans 3a and 3b are revolved in opposite directions, and the electric wire W is temporarily wound back onto the electric wire drum (not shown), and the wound state (position of the electric wire W) is ) will be returned to the state shown in Figure 2.

In this embodiment, the capstans (3a, 3b) were provided with guide grooves 13.13, ---, but of course, there were no guide grooves 13.13, ---, ---. but,
This invention is applicable.

<Effects of the Invention> As explained above, the method for passing a track rolling car using a protector according to the present invention is as follows. Because the protector passes around the capstan without rotating due to the revolution of It is possible to pass through the protector without using.

[Brief explanation of drawings]

Fig. 1 is a schematic plan view of the track rolling stock; Fig. 2 is a schematic plan view showing the state in which the protector has entered; Fig. 3 is a schematic side view seen from the direction of the arrow ■ in Fig. 2;
FIG. 4 is a schematic plan view of the protector being extended. ■-・・-・-Line extension car 3a, 3b・・・・・Capstan A-1・・・・・Axle W−・・・・・Electric wire protector

Claims (2)

[Claims] (1) A method for passing the protector in a track rolling stock that is equipped with a pair of front and rear capstans in the line running direction, and in normal times when only the electric wire is passing, the electric wire is passed by rotating both capstans on their own axis. When the protector enters the entrance side of the railway car, the protector can be rotated around the capstan by revolving both capstans around an axis that passes through the center point between them. A method for passing a protector over a long line car, in which the protector is brought to the exit side without the electric wire, and thereafter both capstans are rotated on their own axis in the same way as in normal times to let out the protector together with the electric wire. (2) A pair of capstans provided in the front and rear in the line extension direction, a drive means for rotating each of the pair of capstans, and a mechanism for causing both capstans to revolve around an axis passing through the center point between the two capstans. A protector-passing type rolling stock comprising a drive means and a drive means.