JPH0251302A - Cable laying machine - Google Patents

Abstract

PURPOSE:To prevent winding of a laying rope around a cable by surrounding the cable with a plurality of rollers then rotary driving the rollers and pulling the outer circumference of the cable through a linear drive mechanism. CONSTITUTION:A laying machine body 1 comprises first and second holding bodies 7, 8 and a spring 10 is inserted into an arched groove 14 made between the holding bodies 7, 8. Rollers 3, 4, 11 other than the roller 2 are supported rotatably on the second pivot section 13 of the second holding body 8, and all rollers are supported rotatably and slidably on the first pivot section 13 of the first holding body. The roller 2 is supported on the second holding body 8 through a bearing 36. The roller 2 is driven by a motor through a bevel gear 34. All rollers are pushed against a cable 39 through the spring 16. The cable 39 is laid through driving of the roller 2.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention mainly relates to a cable stretching machine that can be directly attached to a cable rack or cable tray.

[Traditional technique]

To lay power cables and control cables in various plants, guide rollers are attached to the cable tray at appropriate intervals, and the guide rollers guide the rope. Then, the rope is formed into an endless shape between a wire drawing machine and a wire drawing machine.

Cables were laid on cable trays by locking the cable ends to such ropes and moving the ropes with a wire drawing machine. Another method was to lock the end of the cable to the tip of a guide rope and move the rope along the cable tray.

[Problem to be solved]

The former cable-drawing machine had the disadvantage that the wire-drawing lobes and the cable became entangled. In addition, the latter wire drawing machine required the rope to be guided to guide rollers each time, resulting in a lack of workability. Furthermore, both the former and the latter have the disadvantage that the wire drawing machine is large and the transportation, installation, etc. thereof are troublesome.

[Means for Solving the Problems] Therefore, an object of the present invention is to provide a cable stretching machine that is compact and easy to handle, and the configuration thereof is as follows.

That is, it has a wire drawing machine main body 1 that is detachably attached to a cable laying position. Three or more rollers 2, 3, 4 are rotatably attached to the wire drawing machine main body 1, and configured so that they surround the outer periphery of the cable and press and hold each other from the outside toward the center of the cable. A drive mechanism 5 for rotationally driving at least one roller 2 is provided. Furthermore, at least one roller 3 is configured to be able to open and close freely toward and away from the cable, and to remove the cable from the open side of the roller to the outside of the wire drawing machine.

Therefore, according to the present cable drawing machine, the main body 1 of the drawing machine can be directly attached to a cable tray or the like, and after the cable has been drawn, the cable can be removed from the drawing machine.

〔Example〕

Next, embodiments of the present invention will be described based on the drawings.

Figure 1 is a front view of the main wire drawing machine, and Figure 2 is the
3 is a front view showing the main parts of the present wire drawing machine, and shows the case where the cable 39 has a small diameter. In addition, Fig. 4 is a rear view showing the main parts of the wire drawing machine, Fig. 5 is a sectional view taken along the line V-■ in Fig. 4, and Fig. 6 is an explanatory diagram of the assembly of the main parts of the wire drawing machine. be. As shown in FIG. 1, this wire drawing machine has a wire drawing machine main body 1 detachably attached to the upper edge of the side wall of a cable tray 47. As shown in Figures 1 and 6, the main parts of this wire drawing machine are a C-shaped first holder 7 and a second holder 8 (only this holder 8 is used for mounting the motor), each having a C-shape with one end cut out. The seat portion protrudes from the inner periphery). The outer circumferential surface of the second holder 8 is fitted onto the inner circumferential surface of the first holder 7 and assembled. Further, arcuate grooves 14 are respectively formed on the contact surfaces between the two. One side of this arcuate groove 14 is C.
It is formed up to the open end of the letter shape, and the other end is carved halfway, forming a groove end surface 16 there. Note that the positions of the groove end surfaces 16 of the arcuate grooves 14 of the first holding body 7 and the second holding body 8 are different from each other. By inserting a spring 10 into this arcuate groove 14 as shown in FIG. 6, it is biased so that the space surrounded by each roller 2, 3, 4.degree. 11 is reduced.

FIG. 3 shows this state. Moreover, this wire drawing machine has four rollers 2, 3, 4.11, of which, except for roller 2, one end of which is attached to a second holder 8, as shown in FIGS. 1 and 3. It is rotatably supported by the second pivot portion 13. Further, the other ends of all the rollers 2.3, 4.11 are rotatably fitted to the first pivot joint 12 of the first holding body 7, and the shaft portion thereof is fitted so as to be slidable in the axial direction. . Only the roller 2 is connected to the second holder 8 via the bearing 36 as shown in FIGS. 1 and 2.
It is supported as shown in the figure. That is, the bearing 36 is fixed to the second holding body 8, and its tip rotatably supports the shaft portion of the roller 2. Note that a bevel gear 34 is provided at the end of the roller 2.
is provided, and a bevel gear 35 on the motor side meshes with the bevel gear 34 on the roller 2 side. That is, the bevel gear 35 is connected to the motor 41
The roller 2 is fixed to the rotating shaft of the roller 2, and by rotating the rotating shaft, the roller 2 is driven to rotate. Note that the motor 41 is fixed to the second holding body with screws 46 or the like. Next, roller 3
is configured to be able to rotate from the state shown by the solid line to the state shown by the chain line. This state is seen from the back side in FIGS. 4 and 5. FIG. 5 is a cross-sectional view taken along arrows -■ in FIG. 4, and by moving this roller 3 to the left in FIG. It can be pulled out. As a result, as shown in Figure 4,
The roller 3 can be rotated from the state shown by the solid line to the state shown by the chain line. For this purpose, as shown in FIG. 6, the shaft portion of the roller 3 is connected to a camshaft 38 via a connecting plate 24. Note that both the camshaft 38 and the shaft of the roller 3 are
It is slidably fitted into the pivot portion 12. At the same time, since the first pivot portion 12 itself is configured to be able to rotate,
The whole can be rotated to the right in FIG. A cam 21 is fixed to the camshaft 38, and the cam 21 slides into contact with a cam pin 22 protruding from the open end of the second holding body 8. The opening/closing lever 17 is connected to this cam 21.
This is for moving the curvature to the left in Fig. 4.

As shown in FIG. 4, the opening/closing lever 17 is rotatably attached to the first holder 7 at a pivot point 42 at its tip. Further, a long hole 18 is formed in the middle part of the opening/closing lever 17, and a bottle 45 is locked in this long hole 18.

The pin 45 is pivotally connected to one end of the second link 20 and one end of the first link 19. The second link 20 is attached to the second holder 8 at a pivot point 43, and the first link 19 is attached to a pivot point 44.
It is attached to the first holding body 7 at.

Normally, the opening/closing lever 17 is biased by a spring 10 interposed between the second holder 8 and the first holder 7, and is positioned as shown by the chain line in FIG.

In order to open the opening 3 from the state shown by the solid line to the state shown by the chain line in this state, the opening/closing lever 17 is rotated to the left in FIG. 4 to bring it into the state shown by the solid line.

Then, the first link 19 and the second link 20
The intersection angle becomes larger, and both links gradually approach a straight line. Then, the second holding body 8 rotates to the right. Then, when the lever 17 is further pulled down, the opening of the second holder 8 moves to the position shown in the figure where it aligns with the opening of the first holder 7.

At this time, the cam pin 22 pushes down the cam 21 and moves it to the left. Then, in FIG. 5, the camshaft 38 to which the cam 21 is fixed is moved to the left. Then, the shaft of the roller 3 moves to the left via the connecting plate 24,
The tip comes off from the locking hole 25 of the second pivot portion 13. Then, the cam pin 22 further pushes the cam 21, and the roller 3
is rotated around the second pivot point 12 in FIG.

Thereby, the laid cable 39 can be dropped onto the cable tray.

Next, the attachment part 9 for removably fastening the present wire drawing machine to the cable tray 47 will be explained.

As shown in FIG. 1, this mounting portion 9 has a vice fixing member 30 fixed to the first holder 7 via a bolt 33.

A vice lever 28 and a vice movable member 29 are attached to the protruding end of the vice fixing member 30 via a link 32 and a link 31.

Then, by moving the vice lever 28 from the chain line state to the solid line state, the vice movable member 29 is changed from the chain line state to the solid line state, and the cable tray 47 is fixed by the vice movable member 29 and the vice fixing member 30. can be concluded. Thereby, the main wire drawing machine can be installed on the cable tray 47.

[For production]

The main wire drawing machine installed as shown in Fig. 1 has a cable 39
When there is no cable or when extending a small-diameter cable, the biasing force of the spring 10 causes the rollers 2, 3, 4, and 11 to move toward the center of each other, and the space surrounded by them is reduced, as shown in FIG. is getting narrower. Therefore,
When a cable 39 having a diameter larger than the narrow spaces is inserted into these spaces, the outer periphery of the cable 39 is compressed by the spring IO. Therefore, the cable 39 can be extended by driving the motor 41 shown in FIG.

Next, if the diameter of the cable 39 is relatively large as shown in Figs. Insert it so that it can be pushed out. Then, the wire may be extended by the driving force of the motor 41 in the same manner as described above. Note that the larger the diameter of the cable 39, the greater the urging force exerted by the spring 10. Next, the first holder 7 and the second holder 8 are fitted concentrically as shown in FIGS. 1 and 2, and the flange 26 in FIG.
Separation in the axial direction is prevented by the presence of the motor 41 and the bearing 36 in FIG.

It should be noted that the present invention is of course not limited to the above embodiments (
For example, the mechanism for opening and closing the roller 3 is the fourth one.
As long as it moves to the right in the figure, it is not necessary to limit it to the above embodiment.

〔Effect of the invention〕

Since the cable drawing machine of the present invention has the above configuration, it has the following effects. This structure consists of a wire drawing machine main body 1 that is detachably attached to the cable installation position, three or more rollers 2,
3.4 is attached and pressed so as to surround the outer periphery of the cable 39, so that at least one roller 2 is rotationally driven. Therefore, since the structure is such that the outer periphery of the cable 39 is directly pulled by the drive mechanism 5, there is no possibility that the wire drawing lobes will wrap around the outer periphery of the cable as in conventional wire drawing machines. Further, since at least one roller 3 is opened by the roller opening/closing mechanism 6, the laid cable can be easily removed from the wire drawing machine main body 1. Therefore, it can be a wire drawing machine with good workability. Furthermore, since this cable drawing machine has an extremely simple configuration, it can be manufactured compactly, and the cable drawing machine body 1 can be directly supported on a cable tray, cable rack, etc. in a narrow space, and the cable can be stretched. Line can be. Therefore, the cable drawing machine itself is easy to handle and preparations for wire drawing can be made quickly.

Next, according to the invention recited in claim 2, a highly versatile cable stretching machine is provided that can extend cables of various types.

Furthermore, according to the invention recited in claim 3, the roller 2,
3.4 can be constantly pressed against the outer periphery of the cable, making it easier to extend the cable. In addition, since the thicker the cable, the stronger the pressing force of the spring 10, the cable can be applied with a tensile force commensurate with the thickness of the cable. Thereby, the cable can be safely and reliably extended without damaging the cable.

[Brief explanation of the drawing]

Figure 1 is a front view of the main wire drawing machine, and Figure 2 is the
3 is a front view showing the main parts of the present wire drawing machine, and shows the case where the cable 39 has a small diameter. In addition, Fig. 4 is a rear view showing the main parts of the wire drawing machine, Fig. 5 is a sectional view taken along the line V-■ in Fig. 4, and Fig. 6 is an explanatory diagram of the assembly of the main parts of the wire drawing machine. be. 1... Wire drawing machine main body 5... Drive mechanism 7... First holding body 9... Attachment part 11... Roller 2.3.4... Roller 6... Roller opening/closing mechanism 8 . . . Second holding body 10 . Link 22...Cam pin 24...Connecting plate 26...Flange 28...Vise lever 30...Vise fixing member 33...Bolt 36...Bearing 38...Camshaft 40... Flange 42.43.44... Pivot point 46... Screw

Claims (1)

[Claims] 1) A wire drawing machine main body (1) that is detachably attached to a cable laying position, and a wire drawing machine that is rotatably attached to the main body (1) and that extends from the outside so as to surround the outer periphery of the cable. Three or more rollers (2) that press and hold each other toward the center (
3) (4), a drive mechanism (5) that rotationally drives at least one of the rollers (2), and at least one of the rollers (3) that can be opened and closed so as to be able to approach and separate from the cable; A cable drawing machine comprising: a roller opening/closing mechanism (6) formed to remove the cable to the outside of the drawing machine. 2) In claim 1, approximately C which are fitted concentrically with each other and are relatively rotatable around their axis.
A pair of letter-shaped first holding bodies (7) and second holding bodies (8);
The wire drawing machine main body (1) includes an attachment part (9) provided on one of the holders (7) and removably fastened to a cable tray or cable rack; One end and the other end of the rollers (2), (3), and (4) are rotatably attached to the first holder (7) and the second holder (8), and The rollers (2), (3), and (4) are mounted so that the spaces surrounded by the rollers (2), (3), and (4) expand and contract when rotated, and are located on the C-shaped opening side of both the holders (7) and (8). 3) is configured to be opened by the opening/closing mechanism. 3) In claim 2, each of the rollers (2)
)(3) A spring (10) is interposed between the holding bodies (7) and (8) so as to bias the space surrounded by (4) in the direction of contraction.