JPH072519Y2 - Cable drawing device - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a cable drawing apparatus suitable for application to cable laying.

[Conventional technology]

FIG. 2 is a perspective view showing an outline of a conventional caterpillar wire drawing device. In the figure, (11) is a drive caterpillar, and (2) arranged opposite to this is a driven caterpillar.

The drive caterpillar (11) is wound around three grooved sheaves (4) that are vertically supported by the base (3) and are linearly arranged. The driven caterpillar (2) is also the same. It is wound around three furrows (5).

A motor (6) is installed on the base (3), and a first bevel gear (7) is fixed to the tip of the shaft. On the other hand, a second bevel gear (7a) meshing with the first bevel gear (7) is fixed to the shaft lower end of the grooved wheel (4a) located at one end on the drive caterpillar (1) side. Therefore, the power transmission mechanism is configured such that the grooved wheel (4a) is rotationally driven by the power of the motor (6), and the drive caterpillar (1) is rotated in conjunction therewith.

As shown in FIG. 2, the cable drawing device is used with a cable (indicated by an imaginary line) (8) interposed between the drive caterpillar (1) and the driven caterpillar (2). Therefore, in the above device, a mechanism for adjusting the distance between the caterpillars (1) and (2) in order to cope with cables having different diameters and to adjust the clamping force on the cable (8). A screw mechanism (9) is provided, and the adjusting mechanism is operable by rotating a handle (10) connected thereto.

Next, the operation of the above-described cable drawing device will be described.

As shown in FIG. 2, the drive caterpillar (1) is driven by the power of the motor (6) while the cable (8) is clamped between the drive caterpillar (1) and the driven caterpillar (2) with an appropriate force. ) Rotate in the direction of the arrow. As a result, the cable (8) is sent out in the (A) direction, and the extension of the cable (8) is achieved. At this time, the driven caterpillar (2) is rotated by being driven by the cable (8) and functions as a guide for feeding the cable.

Usually, when the cable (8) is drawn, the cable (8) is towed by installing the above-mentioned cable drawing devices at predetermined intervals and driving them simultaneously.

[Problems to be solved by the device]

The above-described conventional cable drawing device has only a function of sending out one cable (8), and thus there is a problem that it takes time to draw the cable.

The present invention has been made to solve the above problems,
An object of the present invention is to obtain a cable drawing device capable of simultaneously sending out two cables.

[Means for Solving the Problems]

The cable drawing apparatus of the present invention has two driven caterpillars, one on each side of the drive caterpillar, and two cables are simultaneously pressed between the driven caterpillar and the drive caterpillar. It was made possible.

[Action]

According to the cable drawing apparatus of the present invention, by rotating the drive caterpillar in one direction, two cables that are sandwiched between the drive caterpillar and each of the first and second driven caterpillars are provided. Sent out in opposite directions,
At the same time, two cables are extended.

〔Example〕

 An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing an outline of a cable drawing apparatus of the present invention, in which (1) is a drive caterpillar and (2) is a first driven caterpillar. It has almost the same structure as.

The present embodiment is characterized in that a second driven caterpillar (21) is arranged on the opposite side of the first driven caterpillar (2), and the caterpillar (21) is basically the first driven caterpillar (21). It has the same structure as the driven caterpillar 2. In the figure,
(51) is a groove wheel, (91) is an adjusting mechanism, and (10) is a handle for operating the adjusting mechanism (91).

In this embodiment, the first bevel gear 7 shown in FIG. 1 is a mechanism for transmitting the power of the motor (6) to the grooved wheel (4a) located at one end on the drive belt (1) side. A power transmission mechanism corresponding to the second bevel gear 7a is provided on the back side of the base 3.

The operation of this embodiment will be described.

First, the handle (10) is rotated by a distance between the drive caterpillar (1) and the first driven caterpillar (2), and the first driven caterpillar is operated so that an appropriate clamping force in the arrow direction acts on the cable (8). Slide adjustment of (2). Similarly, by rotating the handle (10), the cable 8a located between the drive track (1) and the second driven track (21).
Also, adjust so that an appropriate clamping force acts in the direction of the arrow.

Next, the drive caterpillar (1) is rotationally driven in the arrow direction by the motor (6). As a result, the cable (8) can be sent out in the (A) direction, and at the same time, the cable (8a) can be sent out in the opposite (B) direction.

Therefore, by installing a plurality of devices of this embodiment at a predetermined interval, it is possible to simultaneously extend two cables in opposite directions. Further, by using the above-mentioned device, the cable drawing work time can be shortened to, for example, 1/2 to 2/3 of that of the conventional art by simply adding the cable leader and the drum unwinding supervisor to the conventional work personnel. It is also possible to shorten the construction period.

Although the cable drawing apparatus of the present invention has been specifically described above, the present invention is not limited to the above-described embodiment, and has a basic configuration in which two driven tracks are arranged on both sides of the drive track. It goes without saying that various changes can be made as long as they are used.

[Effect of device]

The cable drawing apparatus of the present invention is configured such that, by rotating a drive caterpillar, two cables are sandwiched between a first driven caterpillar and a second driven caterpillar disposed on both sides of the caterpillar. Can be simultaneously sent out in opposite directions, so that the efficiency of the cable drawing work is improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing an outline of a cable drawing device of the present invention, and FIG. 2 is a perspective view showing an outline of a conventional cable drawing device. In the drawings, the same reference numerals indicate the same or corresponding parts. (1) …… Drive track (2) …… First driven track (21) …… Second driven track (8), (8a) …… Cable

Claims (1)

[Scope of utility model registration request] 1. A drive caterpillar driven by a driving force of a motor, a first driven caterpillar provided opposite to the drive caterpillar, for pinching a cable between the drive caterpillar, and the first driven caterpillar. A second driven caterpillar, which is provided on the opposite side to face the drive caterpillar and presses another cable between the drive caterpillar and the first and second driven caterpillars and the drive caterpillar. A cable drawing device, which is provided with an adjusting mechanism for adjusting each.