JP2006097737A - Cable protection guide device - Google Patents

Abstract

Provided is a cable protection guide device that suppresses wear between a roller and cables, does not cause the cables to ooze, and does not cause wear due to contact between the cables.
Cables for holding main cables by attaching a plurality of connecting plates (120) having insertion holes (120a to 120f) between two rows of chains connecting a large number of link plates (110). In the protective guide device, a plurality of pinched rollers 130a, 130b having a concave portion for supporting auxiliary cables having different outer diameters are supported in a horizontal direction, and the concave portion is formed from the rotation center of the pinched roller. The distance to the bottom of the cable is set to be constant regardless of the outer diameter of the auxiliary cables.
[Selection] Figure 2

Description

  The present invention is used in machine tools, electronic devices, industrial robots, transport machines, etc., and electric cables, optical fiber cables, and fluid supplies for supplying power, supplying liquid, supplying air, etc. to these moving machines or moving parts of the machines The present invention relates to a cable protection guide device for protecting and guiding a flexible cable such as a hose or the like (hereinafter simply referred to as “cables”) safely and reliably.

  When cables are connected to a moving body such as a machine tool, a civil engineering machine, or a conveying device, excessive twisting or pulling force is generated on the cables along with the movement, and the cables are damaged or the appearance becomes cluttered. Therefore, a cable protection guide device that supports and guides these cables is used.

In general, a cable protection guide device has a structure in which a plurality of connecting plates having insertion holes are attached between two rows of chains connecting a number of link plates, and the cables are held by being inserted through the insertion holes. Yes. Usually, the insertion hole is provided at the center of the height of the link plate, that is, on the center line of the chain, and is configured such that the cables are bent by being supported by the insertion hole of the connecting plate in accordance with the bending of the chain. Further, in order to protect and guide a large number of cables, as shown in FIGS. 3 and 4, bearings 14 are fixed to the link plate 11 at predetermined intervals, and a plurality of pinched rollers 13 are provided for each bearing. There is also known a cable protection guide device that supports a second row of cables that are pivotally supported in the horizontal direction and that are separated from the center line of the chain so that they can be moved according to the bending of the chain. Here, FIG. 4 shows a cross-sectional view taken along line 4-4 of FIG. Each of the pinched rollers 13a, 13b, 13c is formed with a recess having a different depth, and each of the recesses has a plurality of cables having different outer diameters (two in the example shown in FIG. 4). (See, for example, Patent Document 1).
Japanese Utility Model Publication No. 62-46031

  However, in the cable protection guide device that supports the cables separated from the center line of the chain by pivotally supporting the above-mentioned nail roller, when supporting cables of different outer diameters, Since the combined use of the combined roller 13a, 13b, 13c is different in the outer diameter of the portion in contact with the stacked roller, that is, the distance from the rotation center of the stacked roller to the bottom of the recess, When foreign matter enters and adjacent rollers rotate at the same rotational speed, wear between the rollers and cables may occur due to the difference in the peripheral speeds of the contact surfaces of adjacent rollers, or the cables may be There is a problem in that a so-called “fogging phenomenon” tends to occur in a meandering shape. That is, when the toothed roller 13b and the toothed roller 13c rotate at the same rotational speed, the toothed roller 13c having a large distance from the center of rotation to the bottom of the recess is a roller compared to the toothed roller 13b. The peripheral speed at the contact surface of the cable increases. For this reason, the cables 15c supported by the roller 13c are fed a longer distance than the cables 15b supported by the roller 13b, and the cable that has lost its destination begins to meander into the outer peripheral side or the inner peripheral side. "Blipping phenomenon" occurs.

  In addition, since a plurality of cables are accommodated in one recess and adjacent cables are in contact with each other, the cables are worn or entangled due to friction between adjacent cables. There was a problem.

  Accordingly, an object of the present invention is to suppress the wear between the roller and the cables, and to prevent the cables from causing a “bleed-out phenomenon” and to prevent the cables from coming into contact with each other and causing the wear. To provide an apparatus.

  In order to achieve the above-mentioned object, the invention according to claim 1 is configured such that a plurality of connecting plates having insertion holes are attached between two rows of chains in which a large number of link plates are connected, and are inserted into the insertion holes. In the cable protection guide device for holding the main cables, a plurality of nail rollers having recesses for supporting auxiliary cables having different outer diameters are supported in the horizontal direction. The distance from the rotation center to the bottom of the recess is set to be constant regardless of the outer diameter of the auxiliary cables.

  Further, in the invention according to claim 2, in addition to the configuration of the invention according to claim 1, the claw-shaped roller recess is formed by one recess with respect to one auxiliary cable to be supported. It is characterized by being.

  According to the cable protection and guide device of the first aspect of the present invention, a plurality of zigzag rollers having recesses for supporting auxiliary cables having different outer diameters are pivotally supported in the horizontal direction. Since the distance from the rotation center of the roller to the bottom of the recess is constant regardless of the outer diameter of the auxiliary cables, even if adjacent rollers rotate at the same rotational speed, The peripheral speed of the contact surface between the roller and the auxiliary cables becomes equal, and wear occurs between the roller and the auxiliary cables, or the auxiliary cables protrude into a meandering shape on the outer peripheral side or the inner peripheral side. , "No oozing phenomenon" occurs.

  Further, according to the cable protection guide device according to the second aspect of the present invention, in addition to the effect exhibited by the cable protection guide device according to the first aspect of the invention, the concave portion of the zigzag roller supports the auxiliary cable 1 to be supported. In contrast to the book, since it is formed of one concave portion, adjacent auxiliary cables do not come into contact with each other, so that wear between the auxiliary cables is suppressed and entanglement and disconnection are avoided.

  Hereinafter, with reference to FIG.1 and FIG.2, the cable protection guide apparatus which is an Example of this invention is demonstrated. FIG. 1 shows a side view of a cable protection and guide device according to the present invention, and FIG. 2 shows a cross-sectional view taken along line 2-2 of FIG.

  The cable protection guide device of the present invention has a plurality of connecting plates having insertion holes 120a to 120f having a diameter slightly larger than the outer diameter of the main cables to be supported between two rows of chains connecting a plurality of link plates 110. 120 is attached. These insertion holes 120a to 120f are provided at the center of the height of the link plate, that is, on the center line of the chain, and are configured to be supported by the connecting plate and bend the main cables in accordance with the bending of the chain. ing. In order to facilitate the insertion of the main cable to be supported, the connecting plate 120 is composed of two upper and lower plates and is screwed to the link plate 110 as shown in FIG.

  In addition, a pair of left and right bearings 140 are installed on one end side of the connecting plate 120, and a plurality of pinched rollers 130a and 130b having arcuate recesses for supporting auxiliary cables having different outer diameters are arranged in the horizontal direction. It is supported. In this embodiment, the pinching roller 130a is formed with an arc-shaped recess having a diameter of φ24 mm, and the pinching roller 130b is formed with an arc-shaped recess having a diameter of φ20 mm. In the arc-shaped recesses of these hook-shaped rollers, the distance from the rotation center of the pinch-shaped roller to the bottom of the arc-shaped recess is set constant regardless of the outer diameter of the auxiliary cables. . Therefore, even if foreign matter enters between adjacent pinched rollers and these rollers rotate together, the peripheral speed of the contact surface is the same between adjacent cables and rollers. In addition, the slip resistance between the cables and the rollers can be greatly reduced, the wear of the cables can be reduced, and the occurrence of the “fogging phenomenon” can be suppressed.

  In this embodiment, the continuous roller for supporting the auxiliary cables is provided at a substantially half position in the width direction of the chain, and has a large diameter supported by the insertion holes 120d, 120e, 120f. The main cable is balanced so that the total weight of the medium-diameter main cable supported by the insertion holes 120a, 120b, and 120c and the staple roller and the small-diameter auxiliary cable supported thereby is balanced. The shape roller 130 is installed in half of the width direction of the chain.

The side view which shows the cable protection guide apparatus which is an Example of this invention. Sectional drawing in the 2-2 line of the cables protection guide apparatus shown in FIG. The side view which shows the conventional cables protection guide apparatus. Sectional drawing in line 4-4 of the cables protection guide apparatus shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10,100 ... Cable protection guide apparatus 11, 110 ... Link plate 12, 120 ... Connection plate 13, 130 ... Cage-type roller 14, 140 ... Bearing

Claims (2)

In a cable protection guide device in which a plurality of connecting plates having insertion holes are attached between two rows of chains connecting a large number of link plates, and holding main cables by being inserted through the insertion holes,
A plurality of pinched rollers having recesses for supporting auxiliary cables having different outer diameters are supported in the horizontal direction,
A cable protection and guide device, wherein a distance from the rotation center of the pinch roller to the bottom of the recess is set to be constant regardless of the outer diameter of the auxiliary cables. The cable protection guide device according to claim 1, wherein the concave portion of the spelling roller is formed by one concave portion for one auxiliary cable to be supported.

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