JP2011106618A - Movable guide roller for cable protective guide device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a movable guide roller for a cable protective guide device that can surely support the cable protective guide device even if the moving amount of the cable protective guide device is changed. <P>SOLUTION: The movable guide roller 100 for the cable protective guide device includes support rollers 150, 160 disposed between a bent-back part and a moving end 206 of the cable protective guide device 200 for protecting and guiding cables having cable fixed ends and cable moving ends in the bent-back state to support the cable protective guide device 200 from below. The moving end 206 of the cable protective guide device 200 is fixed to a belt 132 stretched over a pair of main pulleys 122 with diameters D, and the support rollers are fixed to belts 134, 136 stretched over a pair of auxiliary pulleys 124, 126 fixed to the same rotating shafts as the main pulleys and having diameters d (D/2<d<D). <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention is used for machine tools, electronic devices, civil engineering machines, industrial robots, transfer devices, etc., and electric cables, optical fiber cables, fluid supply for supplying power, signal transmission, liquid supply, air supply, etc. to these moving parts The present invention relates to a cable protection guide device that safely and securely guides flexible cables such as hoses and the like (hereinafter simply referred to as “cables”), and more specifically, bends the cable protection guide device in the longitudinal direction. A movable guide for a cable protection guide device that is used together with the cable protection guide device to support the sag between the bent-back portion and the moving end portion of the cable protection guide device from below when the cable protection guide device is used. It is about Roller.

  When a cable is connected to a moving part such as a machine tool, electronic device, civil engineering machine, industrial robot, or transport device, the cable is unfortunately twisted, bent, or pulled with movement, and the cable is damaged or the appearance is cluttered. It becomes. Therefore, a cable protection guide device for protecting and guiding these cables is used.

  In general, as shown in FIG. 6, the cable protection guide device includes a pair of link plates 202 arranged on both sides of the cable C, and connecting rods 201 horizontally mounted on the bent outer peripheral side and the bent inner peripheral side of the link plate 202. Are connected in the longitudinal direction in a state in which the cable C is inserted, so that the cable C is protected and guided between the moving end portion 206 and the fixed end portion 205.

  When such a cable protection guide device 200 is used by bending back in the longitudinal direction between the moving end portion 206 and the fixed end portion 205, when it is a long moving stroke (long span specification), FIG. As shown to (a), installing the support roller 300 which supports the cable protection protection apparatus 200 bent back is performed. Moreover, as shown in FIG.7 (b), using it without installing a support roller is also performed (for example, refer patent document 1).

JP 2007-321902 A

  However, as shown in FIG. 7A, when the support roller 300 is installed and the bent cable protection guide device 200 is supported, since the support roller 300 is fixed, the movement of the cable protection guide device 200 is performed. There was a problem that some parts could not be supported depending on the amount.

  Further, as shown in FIG. 7B, when the support roller cannot be used, the bent cable protection guide device 200 hangs down, so that the bent cable protection guide device 200 is lowered on the lower side. There has been a problem that a certain cable protection guide device is in sliding contact with the X portion, or a portion where the cable protection guide device is installed is in sliding contact with the Y portion to wear.

  Therefore, a technical problem to be solved by the present invention, that is, an object of the present invention is to provide a movable guide roller for a cable protection guide device that can be reliably supported even if the amount of movement of the cable protection guide device changes. Is to provide.

  First, the invention according to claim 1 is provided between a bent portion and a moving end portion of a cable protection guide device for protecting and guiding cables having a cable fixed end portion and a cable moving end portion in a bent state. A movable guide roller for a cable protection guide device having a support roller for supporting the cable protection guide device from below, wherein the moving end of the cable protection guide device is a pair of main pulleys having a diameter D A belt suspended on a pair of sub pulleys having a diameter d of D / 2 <d <D, the support roller being secured to the same rotation shaft as the main pulley. The above-mentioned problems are solved by being fixedly installed. That is, the diameter d of the sub pulley is set to be larger than half the diameter D of the main pulley and smaller than the diameter D.

  The invention according to claim 2 is the movable guide roller for cables protection guide device according to claim 1, wherein there are n support rollers, each fixed to the same rotating shaft as the main pulley. The diameter di is fixed to a belt hung on n sub-pulleys of D / 2 <d1 <d2 <... <Dn <D (i is 1 to n). Is a further solution.

  In the invention according to claim 3, the cable having the cable fixing end and the cable moving end is protected between the bent portion and the moving end of the cable protection guide device that protects and guides the cable in the bent state. A movable guide roller for a cable protection guide device having a support roller for supporting the cable protection guide device from below, wherein the moving end portion of the cable protection guide device is a pair of main sprockets having a diameter D. A chain suspended on a pair of sub sprockets having a diameter d of D / 2 <d <D, wherein the support roller is fixed on the same rotation shaft as the main sprocket. The above-mentioned problems are solved by being fixedly installed. That is, the diameter d of the sub sprocket is set to be larger than half the diameter D of the main sprocket and smaller than the diameter D.

  According to a fourth aspect of the present invention, in the movable guide roller for cables protection guide device according to the third aspect, there are n support rollers, each fixed to the same rotation shaft as the main sprocket. The diameter di is fixed to a chain hung on n pairs of sub sprockets of D / 2 <d1 <d2 <... <Dn <D (i is 1 to n). Is a further solution.

  According to the first aspect of the present invention, the cable having the cable fixing end and the cable moving end is protected between the bent portion and the moving end of the cable protection guide device that protects and guides the cable in the bent state. In the movable guide roller for a cable protection guide device that has a support roller for supporting the cable protection guide device from below, the moving end of the cable protection guide device is hooked on a pair of main pulleys having a diameter D. The support roller is fixed to a belt suspended from a pair of sub pulleys having a diameter d of D / 2 <d <D. The support roller is fixed to the same rotating shaft as the main pulley. As a result, the support roller moves to the position (d / D) · L with respect to the movement amount L of the moving end of the cables protection guide device. Reliable regardless of travel You can support the Buru like protection and guide device.

  According to the second aspect of the present invention, in the movable guide roller for the cable protection guide device according to the first aspect, there are n support rollers, each fixed to the same rotation shaft as the main pulley. Cables are protected by being fixed to a belt suspended on n pairs of secondary pulleys with a diameter di of D / 2 <d1 <d2 <... <dn <D (where i is 1 to n). Since the n support rollers move to positions (di / D) · L (i is 1 to n) with respect to the movement amount L of the moving end portion of the guide device, the cable protection guide device Even when the moving amount of the moving end is long, the cables and the protection guide device can be reliably supported by the n support rollers.

  According to the third aspect of the present invention, the cable having the cable fixed end portion and the cable moving end portion is protected between the bent portion and the moving end portion of the cable protection guide device that protects and guides the cables in the bent state. In the movable guide roller for a cable protection guide device having a support roller for supporting the cable protection guide device from below, the moving end of the cable protection guide device is hooked on a pair of main sprockets having a diameter D. The support roller is fixed to the chain suspended on a pair of secondary sprockets having a diameter d of D / 2 <d <D. The support roller is fixed to the same rotating shaft as the main sprocket. As a result, the support roller moves to the position (d / D) · L with respect to the movement amount L of the moving end of the cables protection guide device. Irrespective of the rotation amount can be reliably supported cable protection and guide device.

  According to the fourth aspect of the invention, in the movable guide roller for cables protection guide device according to the third aspect, there are n support rollers, each fixed to the same rotation shaft as the main sprocket. Cables are protected by being fixed to a chain hung on n pairs of sub-sprockets having a diameter di of D / 2 <d1 <d2 <... <dn <D (i is 1 to n). Since the n support rollers move to positions (di / D) · L (i is 1 to n) with respect to the movement amount L of the moving end portion of the guide device, the cable protection guide device Even when the moving amount of the moving end is long, the cables and the protection guide device can be reliably supported by the n support rollers.

The front view of the movable guide roller 100 for cables protection guide apparatuses which is an Example of this invention. Sectional drawing in the II-II line of FIG. The state diagram when the stroke of the cable protection guide device is most retracted. The state figure when the stroke of a cable protection guide apparatus is located in the center. The state figure when the stroke of a cable protection guide apparatus advances most. The perspective view of a cable protection guide apparatus. The conceptual diagram explaining embodiment at the time of bending and using a cable protection guide apparatus.

  A movable guide roller for a cable protection guide device according to an embodiment of the present invention is a bent back of a cable protection guide device that protects and guides a cable having a cable fixed end and a cable moving end in a bent state. In the movable guide roller for a cable protection guide device having a support roller that is disposed between the movable portion and the moving end portion and supports the cable protection guide device from below, the moving end portion of the cable protection guide device has a diameter D is fixed to a belt suspended on a pair of main pulleys of D, and a support roller is fixed to a pair of sub pulleys having a diameter d of D / 2 <d <D fixed to the same rotation shaft as the main pulley. As long as it can be reliably supported even if the amount of movement of the cable protection guide device is changed by being fixed to the suspended belt, any specific embodiment is possible. May no even.

  In addition, the movable guide roller for the cable protection guide device according to another embodiment of the present invention provides a cable protection guide device that protects and guides a cable having a cable fixed end portion and a cable moving end portion in a bent state. A movable guide roller for a cable protection guide device having a support roller that is disposed between the bent-back portion and the movement end portion and supports the cable protection guide device from below. Is fixed to a chain hung on a pair of main sprockets having a diameter D, and a support roller is fixed to the same rotating shaft as the main sprocket, and a pair d having a diameter d of D / 2 <d <D. If it can be reliably supported even if the amount of movement of the cable protection guide device changes due to being fixed to the chain hung on the sub sprocket, its specific Aspect of the Do embodiment, may any be any one.

  For example, the movable guide roller for a cable protection guide device of the present invention can be applied to a cable protection guide device made of engineering plastic, or can be applied to a cable protection guide device made of steel.

  The movable guide roller for the cable protection guide device of the present invention can also be applied to a so-called integral type cable protection guide device in which a link plate and a connection rod are integrally formed. The present invention can also be applied to a so-called open / close type cable protection guide device provided so as to be openable / closable with respect to the plate.

An embodiment of the present invention will be described with reference to FIGS.
Here, FIG. 1 is a front view of a movable guide roller 100 for a cable protection guide device according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along line II-II in FIG. FIG. 4 is a state diagram when the stroke of the cable protection guide device is retracted most, FIG. 4 is a state diagram when the stroke of the cable protection guide device is located at the center, and FIG. 5 is a cable protection diagram. It is a state figure when the stroke of a guide device advances most. 3 to 5, (a) shows a top view and (b) shows a front view.

  As shown in FIG. 1, the movable guide roller 100 for cables protection guide device of the present embodiment has a moving end fixed to a moving part such as a machine tool, an electronic device, a civil engineering machine, an industrial robot, or a transfer device. The present invention is applied to the cable protection guide device 200 that is used by being bent back between the portion 206 and the fixed end portion 205 fixed to the fixed portion.

  The moving end 206 of the cable protection guide device 200 is fixed to a belt 132 that is hung on a pair of main pulleys 122 having a diameter D. In addition, the first support roller 150 is attached to the support bracket 152 on the belt 134 that is hung on the first sub pulley 124 having a smaller diameter d1 than the main pulley 122 fixed to the same rotating shaft 140 as the main pulley 122. It is fixed through. Further, the second support roller 160 is attached to the belt 136 that is hung on the second sub pulley 126 having a smaller diameter d2 than the first sub pulley 124 fixed to the same rotating shaft 140 as the main pulley 122. It is fixed via a support bracket 162.

  The first support roller 150 is installed at a position closer to the moving end portion 206 of the cables protection guide device 200 than the second support roller 160. The first support roller 150 and the second support roller 160 are in sliding contact with the lower side of the movable portion of the cables protection guide device 200 that moves forward and backward to prevent the cables protection guide device 200 from hanging down.

Next, in the movable guide roller 100 for cables protection guide device of the present embodiment, the movement of the support roller when the moving end portion 206 of the cables protection guide device 200 moves will be described with reference to FIGS. To do. Here, the movement of the first support roller 150 and the movement of the second support roller 160 are caused by the difference in length between the diameter d1 of the first sub pulley 124 and the diameter d2 of the second sub pulley 126. Since the belt 138 is hung on the sub pulley 128 having the diameter d and the support roller 170 is fixed to the belt 138, the following description will be made.

  First, let L be the stroke of the cable protection guide device 200. As shown in FIG. 3, when the moving end 206 of the cable protection guide device 200 is most retracted, the moving end 206 is at the position A, and when the moving end 206 is most advanced, B Come to the position. That is, the distance between A and B is L. On the other hand, the support roller 170 is attached to a belt 138 suspended on a pulley 128 having a diameter d smaller than the diameter D of the pulley 122 around which the belt 132 to which the moving end portion 206 is fixed is suspended. It is fixed. Since the pulley 122 and the pulley 128 are fixed to the same rotating shaft 140, when the moving end portion 206 moves a distance L, the support roller 170 moves (d / D) · L. That is, as shown in FIG. 5, the support roller 170 moves from the position “a” to the position “b”, and is positioned between the bent-back portion and the moving end portion 206 of the cables protection guide device 200. The sagging of the protection guide device 200 is supported from below.

  Similarly, when the moving end portion 206 moves a distance L / 2, the support roller 170 moves (L / 2) × (d / D) as shown in FIG. That is, the support roller 170 moves from the position “a” to the position “c”, and is positioned between the bent-back portion of the cables protection guide device 200 and the moving end portion 206 so that the cables protection guide device 200 hangs down. Support from below.

  3 to 5, the case where there is one support roller has been described. However, the number of support rollers can be arbitrarily set to n, and in this case, each support roller has the same rotational axis as the main pulley. The fixed diameter di is fixed to a belt that is hung on a pair of sub pulleys of D / 2 <d1 <d2 <... <Dn <D (i is 1 to n). Here, the reason why the diameter di of the auxiliary pulley is determined to be D / 2, that is, larger than half of D, is that if it is smaller than D / 2, the moving distance of the support roller is small, and the bent portion of the cable protection guide device This is because they interfere. That is, the distance traveled by the bent-back portion is L / 2 with respect to the moving distance L of the cables protection guide device.

  In the above-described example, the apparatus is configured using a pulley and a belt, but the apparatus can also be configured using a sprocket and a chain. In FIG. 2, the pulley group and the sprocket group are shown to rotate in the vertical direction, but the same effect can be obtained by rotating in the horizontal direction.

  As described above, according to the movable guide roller for cables protection guide device of the present invention, the positions of the plurality of support rollers can be controlled by the diameter ratio of the pulley (sprocket) group. The cable protection guide device can be reliably supported regardless of the amount of movement of the moving end, and the support roller receives the cable protection guide device at all times, so that vibration of the free span due to polygonal motion can be suppressed. The effect is tremendous.

DESCRIPTION OF SYMBOLS 100 ... Movable guide roller 122 for cable protection guide apparatuses ... Main pulleys 124, 126, 128 ... Sub pulleys 132, 134, 136, 138 ... Belt 140 ... Rotating shafts 150, 160 , 170, 300 ... Support rollers 152, 162 ... Support bracket 200 ... Cable protection guide device 201 ... Connection rod 202 (of the cable protection guide device) ... (Cable protection guide device) Link plate 205 ... fixed end 206 (of cables protection guide device) ... moving end (of cables protection guide device)

Claims (4)

The cable protection guide device disposed between a bent portion and a moving end portion of a cable protection guide device for protecting and guiding cables having a cable fixed end portion and a cable moving end portion in a bent state. In a movable guide roller for cables protection guide device having a support roller supported from below,
The moving end of the cable protection guide device is fixed to a belt hung on a pair of main pulleys having a diameter D,
Cables characterized in that the support roller is fixed to a belt suspended on a pair of sub pulleys having a diameter d of D / 2 <d <D, which is fixed to the same rotating shaft as the main pulley. Movable guide roller for protection guide device.   There are n support rollers, and each has a diameter di fixed to the same rotating shaft as the main pulley and D / 2 <d1 <d2 <... <Dn <D (i is 1 to n). The movable guide roller for a cable protection and guide device according to claim 1, wherein the movable guide roller is fixed to a belt suspended on n pairs of sub pulleys. The cable protection guide device disposed between a bent portion and a moving end portion of a cable protection guide device for protecting and guiding cables having a cable fixed end portion and a cable moving end portion in a bent state. In a movable guide roller for cables protection guide device having a support roller supported from below,
The moving end portion of the cables protection guide device is fixed to a chain hung on a pair of main sprockets having a diameter D,
Cables characterized in that the support roller is fixed to a chain suspended on a pair of sub sprockets having a diameter d of D / 2 <d <D, which is fixed to the same rotating shaft as the main sprocket. Movable guide roller for protection guide device.   There are n support rollers, and each has a diameter di fixed to the same rotation shaft as the main sprocket and D / 2 <d1 <d2 <... <Dn <D (i is 1 to n). 4. The movable guide roller for cables protecting and guiding apparatus according to claim 3, wherein the movable guide roller is fixed to a chain suspended on n pairs of sub sprockets.

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