JPH0577173U - Electric wire / cable tow rope winding drum - Google Patents

Abstract

(57) [Summary] [Purpose] When fixing the starting end of the tow rope to the winding drum, the fixing operation can be made smooth. [Structure] A plastic sheet 4 is attached to the surface of a body portion 2 of a winding drum 1 by fixing a part of the plastic sheet 4 over the entire axial length thereof. The sheet 4 is peeled off, the start end of the tow rope a is inserted between them, and the sheet 4 is covered. In this state,
The winding drum 1 is slightly rotated to wind the tow rope a, the sheet 4 is pressed to prevent the leading end of the tow rope a from slipping, and then the winding is started. At this time, whatever position the traverser of the winder, that is, the starting end of the tow rope a, can be accommodated by inserting the starting end into the sheet and an arbitrary position in the body.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an electric wire / cable tow rope winding drum used when an electric wire / cable (hereinafter simply referred to as a cable) is laid in a pipeline.

[0002]

[Prior art and its problems]

 To lay a cable in a pipeline, first attach a shuttle cock to the tip of the pilot rope, and then install this shuttlecock from one manhole on both ends of the pipeline to the other manhole with compressed air. Introduce pilot rope into the pipeline. Next, a tow rope is connected to this pilot rope and the pilot rope is taken out to introduce the tow rope into the pipeline.

On the other hand, near the other manhole, a take-up machine and a take-up machine, in which a pair of endless chains are opposed to each other, are provided. If the tow rope passes through the pipe line and is guided out from the other manhole, the take-up machine Between the endless chains of and pull the tow rope as the chain runs. At this time, connect the cable to the tow rope and guide the cable into the pipeline as the tow rope is taken. The tow rope pulled out from the other manhole is taken up by the take-up drum of the take-up machine.

By the way, the tow rope is provided with connectors corresponding to each other at both ends thereof, and is usually about 100 m and is connected through the connectors to a length corresponding to the above pipe length. On the other hand, the take-up drum of the tow rope is sized to take up a unit length in terms of transportability and the like. Therefore, the winding action is performed for each tow rope of the unit length, and the winding drum is replaced each time.

At the time of winding on the new winding drum, the starting end of the tow rope must be fixed to the winding drum, but conventionally, the starting end was inserted into the winding start opening of the flange portion of the winding drum. It was fastened by various means such as lacing, which was troublesome.

Further, when the end of the tow rope comes to the winding drum, the end is not always near the brim, but rather is located in the center of the body. That is, the traverser of the winder is often located in the center of the body. Therefore, the starting end of the next tow rope will be in the center of the trunk. In order to guide and fasten it to the winding start mouth of the collar part, it is necessary to pull the tow rope and the like, which adds to the troublesomeness of the work in addition to the fastening of the rope and the like.

In view of the above points, the present invention has an object to make it possible to easily fix the starting end of the tow rope to the winding drum regardless of the position of the traverser of the winding machine.

[0008]

[Means for solving the problem]

 In order to solve the above problems, in the present invention, a flexible sheet is attached to the surface of the take-up drum body over the entire length in the axial direction by fixing a part of the flexible sheet. ..

[0009]

[Action]

 In the winding drum according to the present invention having such a structure, the free portion of the flexible sheet is peeled off, the start end of the tow rope is inserted between them, and the sheet is covered. In this state, turn the take-up drum slightly to wind the tow rope, hold down the sheet to prevent the start end of the tow rope from slipping, and then start taking-up.

At this time, whatever position the traverser of the winder, that is, the starting end of the tow rope, can be accommodated by inserting the starting end into an arbitrary position between the sheet and the body.

[0011]

【Example】

 Reference numeral 1 denotes a winding drum according to the present invention, which comprises a body portion 2 and collar portions 3 and 3, and a plastic sheet 4 extending over the entire axial length of the body portion 2 is provided with its one side edge fixed. As the fixing means, adhesion of gum tape c or the like, fastening such as eyeletting, nailing or the like is adopted. Further, the fixing position may be on the side of the collar portion 3. In this case, if only one side is used, the seat 4 is flipped up to one side thereof, and if both ends are fixed, a pulling rope a is inserted between the seat 4 and the body portion 2 to perform a rope fixing action described later. Will be done.

The use of the winding drum 1 is such that when the connector b of the pulled tow rope a arrives at the winding drum 1, the connector b is disconnected and the winding drum 1 on the winding machine is replaced with a new one. Replace with.

When the replacement is completed, as shown in FIGS. 1 and 2, the sheet 4 is lifted (peeled) from the other side edge, and the start end of the tow rope a is inserted between them, and as shown in FIG. The seat 4 is put on and the tow rope a is temporarily fixed by the seat 4.

During this period, the take-up machine takes up without stopping, the tow rope a is stored on the ground, and when the start end temporary fixing of the tow rope a is completed, the winder driven by the torque motor is started. .. At the beginning, because of the winding of the storage line portion, the load is small and the winding is fast. At this time, as shown in FIGS. 4 to 6, the tow rope a is cross-turned by holding the hand so that the winding start end does not slip. During this operation, it is preferable to drive the winder by hand, and after the start end is securely fixed, it is automatically operated.

[0015]

【effect】

 As can be seen from the above description, according to the present invention, the winding of the tow rope used when laying the electric wire / cable in the pipeline can be performed at any position of the drum width regardless of the position of the traverser. It can be implemented smoothly.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment.

FIG. 2 is an explanatory view of the operation of the same embodiment.

FIG. 3 is an explanatory view of the operation of the same embodiment.

FIG. 4 is an operation explanatory view of the same embodiment.

FIG. 5 is an operation explanatory view of the same embodiment.

FIG. 6 is an explanatory view of the operation of the embodiment.

[Explanation of symbols]

 a Tow rope b Connector 1 Winding drum 2 Body part 3 Collar part 4 Flexible sheet (plastic sheet)

Claims (1)

[Scope of utility model registration request] 1. A wire / cable tow rope winding drum, characterized in that a flexible sheet covering the entire length in the axial direction is fixedly attached to the surface of the body portion.