JP5961157B2 - Cable protection guide device and method of using the same - Google Patents

Description

  The present invention is, for example, a flexible cable that feeds or supplies liquid to a moving part such as a machine tool, or a long cable such as a hose that guides the moving part in accordance with the movement of the moving part. The present invention relates to a kind protection guide device and a method of using the same.

  This type of cable protection and guide device includes a plurality of links configured to include a pair of link portions that are coupled in the longitudinal direction and face each other, a first coupling unit that couples each pair of link units, And a second connecting portion that opposes the connecting portion and connects each pair of link portions (see, for example, Patent Document 1). And in such a cable protection guide apparatus, the rotation range of adjacent links is regulated to a predetermined range, and each pair of link parts, each first connection part, and each second connection part Cables are accommodated in the enclosed space formed.

JP 2009-41631 A

  By the way, in the cable protection guide apparatus as described above, a plurality of links are connected in series by sequentially fitting a connection pin hole and a connection pin provided in the link portion in a rotatable manner. Therefore, when an external force is applied, there is a problem that the connection state between the links may be released due to the release of the fitting state between the connection pin hole and the connection pin.

  The present invention has been made paying attention to such problems existing in the prior art. An object of the present invention is to provide a cable protection guide device and a method of using the same that can regulate the rotation range of the links while preventing the links from being disconnected.

Hereinafter, means for solving the above-described problems and the effects thereof will be described.
A cable protection guide device that solves the above problems includes a link having a pair of link portions facing in the first direction, a first connection portion that connects the pair of link portions facing in the first direction, and the pair of links A plurality of second connecting portions that connect the link portions at positions facing the first connecting portions, and the plurality of links are arranged in series in a second direction orthogonal to the first direction, and the first Two ends of the pair of links adjacent to each other in two directions are pivotally connected in a state where the ends of the links overlap each other in the first direction, and the pair of opposed links in the plurality of links, In the housing space formed to extend in the second direction surrounded by the first connecting portion and the second connecting portion, cables are moved to move the link located at one end of the plurality of links. Together A cable protection and guide device that is housed so as to be able to guide, in which the end portions are arranged outside of the link portions in which the end portions are overlapped in the first direction at the connecting portion of the two adjacent links. A first restricting portion provided on one of the link portions on the side that is formed, and an attachment member that is detachably attached to the other link portion on the side where the end portion is disposed on the inner side. In a state of being attached to the other link portion, the flange portion covering a part of the outer surface of the one link portion and the first restricting portion are engaged when the two adjacent links rotate. And a second restricting portion capable of restricting a rotation range between the two adjacent links.

  According to this configuration, the flange portion of the mounting member attached to the other link portion of the link portions with the end portions overlapped at the connecting portion of the two adjacent links is one of the outer surfaces of the one link portion. By covering the portion, it is possible to regulate the rotation range of the links while suppressing the disconnection between the two adjacent links.

  In the cables protection guide device, one of the first restricting portion and the second restricting portion is constituted by a concave portion, and the other is constituted by a convex portion that is relatively movable in the concave portion. It is preferable to provide a restricting surface that restricts the turning range by the contact of the convex portion when two adjacent links rotate.

  According to this configuration, one of the first restricting portion and the second restricting portion is constituted by a concave portion and the other is constituted by a convex portion that can be relatively moved in the concave portion. It is possible to suppress an increase in the width in the first direction of the kind protection guide device.

  In the cable protection guide device, a pin hole is provided at one end of the one link portion, and an outer diameter larger than the inner diameter of the pin hole is provided at the other end of the other link portion. It is preferable that a pin portion having a diameter portion is provided, and the pin portion is configured to be elastically deformable so as to be reduced in diameter until the enlarged diameter portion becomes an outer diameter that can be inserted into the pin hole.

  According to this configuration, after the diameter-expanded portion of the pin portion is elastically deformed to be reduced in diameter and inserted into the pin hole, the diameter-expanded portion is expanded by its own elastic restoring force, so that one link portion and Since the connection strength with the other link portion is improved, it is possible to suppress the disconnection between the two adjacent links.

  In the cable protection guide device, the link portion is formed in a convex curved surface at one end portion in the second direction, and at a position between the end surface of the other end portion and the central portion in the second direction. A concave curved surface corresponding to the convex curved surface is formed, and the two adjacent links are connected so that the convex curved surface and the concave curved surface move relative to each other along the mating surface when rotating. The flange portion of the attachment member attached to the other link portion has a curved shape portion extending along the concave curved surface, and at least both ends of the curved shape portion are surfaces outside the one link portion. It is preferable to cover a part of

  According to this configuration, by attaching the mounting member to the link portion of the other link, the flange portion covers at least two portions of the curved shape portion at both ends of the curved portion so as to cover a part of the outer surface of the link portion of the one link. It is possible to suppress the disconnection between the one link and the other link.

  In the cable protection guide apparatus, the cable further includes a regulation mechanism that regulates a rotation range of the two adjacent links, and the rotation range when the convex portion is regulated by hitting the regulation surface in the concave portion is, It is preferable that the rotation range is narrower than that regulated by the regulation mechanism.

According to this configuration, it is possible to change the rotation range of two adjacent links depending on whether or not the attachment member is attached to the link.
A method of using the cable protection guide device that solves the above-described problem is a method of using the cable protection guide device having the above-described configuration, in which the second range that engages with the first restriction portion and restricts the rotation range is used. A plurality of types of mounting members having different regulating portions are prepared, and the mounting member detachably attached to the other link portion is exchanged between the plurality of types of mounting members, and the two adjacent links are connected. Change the rotation range.

  According to this configuration, by not replacing the mounting member, the flange portion of the mounting member attached to the other link portion of the link portions where the end portions are overlapped at the connecting portion of two adjacent links is one side. Since a part of the outer surface of the link portion is covered, it is possible to regulate the rotation range of the links while suppressing the disconnection between the two adjacent links. Moreover, it becomes possible to change the rotation range between two adjacent links by exchanging the attachment member attached to the other link portion among a plurality of types of attachment members having different second restriction portions. .

  ADVANTAGE OF THE INVENTION According to this invention, the rotation range of the said links can be controlled, suppressing that the connection of links is removed.

The side view of the cables protection guide apparatus of one Embodiment. The perspective view which shows a part of the cables protection guide apparatus. The disassembled perspective view which shows the state when attaching an attachment member to a link in the cable protection guide apparatus. The perspective view of the attachment member. The side view which shows a part of the cables protection guide apparatus. The side view which shows a part of cables protection guide apparatus of the example of a change. The perspective view of the attachment member of the example of a change. The perspective view which shows a part of cables protection guide apparatus of the example of a change.

Hereinafter, an embodiment of a cable protection and guide device will be described with reference to the drawings.
As shown in FIG. 1 and FIG. 2, the cable protection guide device 11 is made of synthetic resin and has a link 13 having a pair of link portions 12 facing each other in the width direction Y, which is the first direction, and the width direction Y. A plurality of first connecting portions 14 that connect the pair of opposing link portions 12 and a plurality of second connecting portions 15 that connect the pair of link portions 12 at positions facing the first connecting portion 14 are provided. The first connecting portion 14 is detachably attached to the pair of link portions 12 constituting the link 13, while the second connecting portion 15 is formed integrally with the pair of link portions 12 constituting the link 13.

  The plurality of links 13 are rotatably connected in a state of being arranged in series in the series direction X, which is a second direction orthogonal to the width direction Y. That is, two adjacent links 13 in the series direction X are rotatably connected in a state where the ends of the pair of link portions 12 are overlapped in the width direction Y, respectively.

  Of the plurality of links 13, a link 13 located at one end in the series direction X is rotatably connected to a connecting bracket 16 for connecting to a moving body M that reciprocates in the series direction X. A fixing fitting 17 for fixing to a fixing portion (not shown) is rotatably connected to the link 13 located at the other end.

  The accommodation space SK that is formed to extend in the series direction X surrounded by the pair of link portions 12, the first connection portion 14, and the second connection portion 15 in the plurality of links 13 may be flexibly bent. Possible long cables TK are accommodated. The cable protection guide device 11 protects the cables TK accommodated in the accommodation space SK in accordance with the movement of the link 13 located at one end of the plurality of links 13 (reciprocating movement of the moving body M). While guiding.

  In this case, the long cable protection guide device 11 is arranged so that a curved portion W is formed at an intermediate portion thereof, and the curved portion W is connected in series to one end of the plurality of links 13. It moves in the series direction X in accordance with the movement in the direction X (the reciprocating movement of the moving body M). In addition, as the cables TK, for example, an electric cable or an optical fiber cable that supplies power or transmits signals to the moving body M, and gas (for example, air) or liquid (for example, water or oil) is supplied to the moving body M. And a long articulated member that can be bent flexibly.

  As shown in FIG.2 and FIG.3, each link part 12 has comprised the substantially rectangular plate shape in which the both ends of the serial direction X were rounded. One end side of each link portion 12 in the series direction X is an outer thin portion 20 that is thinner than the central portion so that the inner half in the width direction Y is cut into a circle, so that the serial direction in each link portion 12 The other end side of X is an inner thin portion 21 that is thinner than the central portion so that the outer half in the width direction Y is cut into a circle.

  A circular connecting hole 22 as an example of a pin hole is formed in the outer thin portion 20 of each link portion 12 so as to pass through, and the outer surface of the inner thin portion 21 of each link portion 12 is adjacent to the series direction X. An annular connection convex portion 23 is formed as an example of a pin portion that is rotatably fitted in the connection hole 22 of the other link portion 12. An enlarged diameter portion 23 a having an outer diameter slightly larger than the inner diameter of the connection hole 22 is provided at the distal end portion of the connection convex portion 23.

  The connecting convex portion 23 is divided into a plurality of (four in this embodiment) arcuate pieces 23b at equal intervals in the circumferential direction, and a gap is formed between the divided pieces 23b in the circumferential direction. Yes. And the connection convex part 23 is comprised so that elastic deformation is possible so that it may reduce in diameter until the outer diameter of the enlarged diameter part 23a becomes an outer diameter which can be inserted in the connection hole 22. FIG.

  That is, the outer diameter of the enlarged diameter portion 23a in the connecting convex portion 23 is slightly larger than the inner diameter of the connecting hole 22 when all the divided pieces 23b are elastically deformed so as to fall inward and the adjacent divided pieces 23b are brought into contact with each other. Get smaller. The end surface in the series direction X of the outer thin portion 20 located at one end portion of each link portion 12 is formed to be a semicircular arc-shaped convex curved surface 24. An arc-shaped cutout recess 25 that is a recess as an example of a first restricting portion along the connecting hole 22 is formed at the center of the convex curved surface 24.

  A pair of screw holes 26 are formed between the central portion of each link portion 12 in the serial direction X and the inner thin portion 21. The pair of screw holes 26 are arranged at a predetermined interval in the thickness direction Z of the cables protection guide device 11 orthogonal to both the series direction X and the width direction Y. The end surfaces on the pair of screw holes 26 side in the inner thin portion 21 located at the other end of each link portion 12 are formed in a semicircular arc-shaped concave curved surface 27 corresponding to the convex curved surface 24. That is, the concave curved surface 27 is located between the end surface of the other end portion of each link portion 12 and the central portion.

  As shown in FIGS. 3 and 5, when two adjacent links 13 in the series direction X are connected, the outer thin portion 20 and the other side of the link portion 12 on one side of the link portions 12. The inner thin portion 21 of the link portion 12 overlaps with the outer thin portion 20 on the outer side in the width direction Y, and the connecting hole 22 and the connecting convex portion 23 are fitted.

  That is, at the connecting portion of two link portions 12 adjacent in the series direction X, the outer thin portion 20 of one link portion 12 and the inner thin portion 21 of the other link portion 12 are outer thin portions 20 in the width direction Y. In a state where the two are overlapped with each other, the connection hole 22 of one link portion 12 and the connection convex portion 23 of the other link portion 12 are fitted.

  At this time, since the connecting convex portion 23 is inserted into the connecting hole 22 in a state of being elastically deformed so as to be reduced in diameter, after being inserted into the connecting hole 22, the original shape is restored by its own elastic restoring force. Trying to return. For this reason, since the connection convex part 23 presses the connection hole 22 toward the radial direction outer side, the connection hole 22 and the connection convex part 23 fit firmly.

  And in the state which each connection hole 22 and each connection convex part 23 of a pair of link parts 12 fitted, respectively, the link parts 12 of the one side of the width direction Y in the two links 13 adjacent in the serial direction X An arc-shaped sliding groove 28 is formed by the outer surface of the inner thin portion 21, the cutout recess 25, and the concave curved surface 27. Further, an attachment member 30 is detachably attached to the connecting portion of the link portions 12 on one side in the width direction Y so as to cover the sliding groove 28.

  As shown in FIGS. 3 and 4, the attachment member 30 is an example of a flange portion 31 having a substantially U-shaped plate shape and a second restricting portion projecting substantially at the center of one surface of the flange portion 31. And an arcuate sliding convex portion 32 which is a convex portion. In the thickness direction Z, the width of the flange portion 31 is the same as the width of the link portion 12. The circumferential length of the sliding protrusion 32 is set to be shorter than the circumferential length of the cutout recess 25.

  A semicircular arc-shaped curved portion 33 extending along the concave curved surface 27 is provided on one side of the flange portion 31 in the series direction X, and corresponds to the pair of screw holes 26 on the other side of the flange portion 31 in the series direction X. A pair of screw insertion holes 34 are formed to pass through the position. Each attachment member 30 is detachably attached to each link portion 12 by screwing the cap bolt 35 into the pair of screw holes 26 with the cap bolt 35 inserted into the pair of screw insertion holes 34, respectively.

  In this case, as shown in FIGS. 3 and 5, the flange portion 31 of the mounting member 30 is connected to the link portion 12 on the inner thin portion 21 side in the connecting portion of the two adjacent link portions 12 connected in the series direction X. In the attached state, a part of the outer surface in the width direction Y of the link part 12 on the outer thin part 20 side is covered. That is, the flange portion 31 covers a part of the outer surface in the width direction Y of the link portion 12 on the outer thin portion 20 side with both end portions of the curved shape portion 33 in the thickness direction Z.

  In the state in which the attachment member 30 is attached to the link portion 12, the sliding convex portion 32 of the attachment member 30 extends along the circumferential direction of the sliding groove 28 in the sliding groove 28 as shown in FIG. 5. It is slidably inserted (relatively movable). Both end surfaces in the circumferential direction in the cutout recess 25 constituting the slide groove 28 are defined as regulation surfaces 25a that regulate the sliding range of the slide projection 32 when the slide projection 32 hits.

  That is, the sliding protrusion 32 is slidable (relatively movable) by a predetermined angle range (for example, 15 degrees) along the circumferential direction of the coupling hole 22 in the sliding groove 28. The predetermined angle range is a rotation range (a rotatable angle range) between two links 13 adjacent in the series direction X.

  In other words, when the two adjacent links 13 rotate in the series direction X rotate, the sliding convex portion 32 hits the restricting surface 25a, so that the rotation range between the two links 13 is restricted. In this case, the convex curved surface 24 of the link portion 12 of the link 13 on one side of the two links 13 and the concave curved surface 27 of the link portion 12 of the link 13 on the other side move relative to each other along the mating surface.

  Then, in a state where the sliding convex portion 32 is in contact with one of the two regulating surfaces 25a in the notch concave portion 25 constituting the sliding groove 28, two link portions adjacent in the series direction X are adjacent to each other. The angle formed by the 12 members is 180 degrees (linear). That is, the two links 13 adjacent in the series direction X are bent only on one side.

Next, the operation at the time of using the cable protection guide device 11 will be described.
When the moving body M reciprocates in the series direction X, the cables protection guide device 11 reciprocates in the series direction X so that the curved portion W is displaced following the moving body M. Then, the cables TK accommodated in the accommodation space SK are guided by the cables protection guide device 11 while being protected according to the movement of the moving body M.

  At this time, when a load in the width direction Y is applied to the cables protection guide device 11, the connection state between the connection holes 22 and the connection projections 23 between the links 13 is released, and the links 13 are connected to each other. May come off. In this regard, in the cable protection guide device 11 of the present embodiment, even if a load in the width direction Y is applied, the attachment member 30 prevents the two links 13 adjacent in the series direction X from shifting in the width direction Y. Is done.

  That is, the fitting state between the connection hole 22 of one link 13 and the connection projection 23 of the other link 13 of the two links 13 adjacent in the series direction X is released by the mounting member 30. It is suppressed. At this time, the elastic restoring force of the connecting convex portion 23 of the other link 13 fitted in the connecting hole 22 is applied to the connecting hole 22 of the one link 13 from the inside. Combined with the action, the fitting state between the connecting hole 22 and the connecting convex portion 23 is effectively suppressed from being released. Therefore, it is possible to effectively prevent the links 13 from being disconnected.

  Further, since the mounting member 30 has the sliding convex portion 32, when the curved portion W of the cables protection guide device 11 moves, the sliding convex portion 32 forms the sliding groove 28. By hitting the inner restricting surface 25a, the rotation angle between the two links 13 adjacent in the series direction X is restricted within a certain range. For this reason, the curvature of the curved part W at the time of the movement of the cables protection guide apparatus 11 is maintained in a certain range. Therefore, the cables TK accommodated in the accommodation space SK of the cables protection guide device 11 are stably guided as the moving body M moves while being protected by the cables protection guide device 11.

  Also, a plurality of types of attachment members 30 having different lengths in the circumferential direction of the sliding protrusions 32 (lengths in the sliding direction in the sliding grooves 28) are prepared, and each link of the cable protection guide device 11 is prepared. If the attachment member 30 attached to 13 is replaced with another attachment member 30 having a different length in the circumferential direction of the sliding protrusion 32, the range of the rotation angle between two adjacent links 13 in the series direction X can be reduced. Can change. That is, even if the specification of each link 13 is not changed, the range of the rotation angle between two links 13 adjacent in the series direction X can be changed by simply replacing the attachment member 30.

According to the embodiment detailed above, the following effects are exhibited.
(1) The cable protection guide device 11 includes the attachment member 30 attached to one link portion 12 of the link portions 12 whose ends overlap each other at the connection portion of two links 13 adjacent in the series direction X. The flange portion 31 covers a part of the outer surface of the other link portion 12. For this reason, even if the load in the width direction Y is applied to the cables protection guide device 11, it is possible to suppress the connection between the two links 13 adjacent in the series direction X by the attachment member 30. In addition, when the attachment member 30 is attached to the link portion 12 of one of the two links 13 adjacent in the series direction X, when the two links 13 rotate, the other By having contact with the regulation surface 25a of the notch recess 25 of the link portion 12 of the link 13, the slide projection 32 that can regulate the rotation range between the two links 13 is provided. For this reason, the rotation range of the links 13 adjacent in the series direction X can be restricted. Therefore, in the cables protection guide device 11, the rotation range of the links 13 can be restricted while suppressing the disconnection between the two links 13 adjacent in the series direction X.

  (2) In the cable protection guide device 11, the sliding convex portion 32 of the attachment member 30 is accommodated in the cutout concave portion 25 of the link portion 12 so as to be slidable (relatively movable). For this reason, the cables protection guide device 11 can suppress the distance in the width direction Y from becoming long for the attachment member 30 attached.

  (3) In the cable protection guide device 11, a connecting hole 22 is provided at one end of one of the two link portions 12 adjacent in the series direction X, and the other end of the other link portion 12. A connecting projection 23 having an enlarged diameter portion 23 a having an outer diameter larger than the inner diameter of the connection hole 22 is provided at the tip portion. And the connection convex part 23 is comprised so that elastic deformation is possible so that it may reduce in diameter until the enlarged diameter part 23a becomes an outer diameter which can be inserted in the connection hole 22. FIG. For this reason, when the diameter-expanded portion 23a of the connecting convex portion 23 is elastically deformed to be reduced in diameter and inserted into the connecting hole 22, the diameter-expanded portion 23a is expanded by its own elastic restoring force (returned to the original outer diameter). Try to). Therefore, the connection convex part 23 and the connection hole 22 fit firmly. Therefore, since the connection strength of one link part 12 of the two link parts 12 adjacent in the serial direction X and the other link part is improved, the connection between the two links 13 adjacent in the serial direction X is released. This can be suppressed.

  (4) In the cable protection guide device 11, the flange portion 31 of the attachment member 30 attached to the link portion 12 of one of the two links 13 adjacent in the series direction X extends along the concave curved surface 27. The curved shape portion 33 extending in a straight line, and covers a part of the outer surface of the link portion 12 of the other link 13 at two locations on both ends of the curved shape portion 33. For this reason, even if the load of the width direction Y is applied to the cables protection guide apparatus 11, it can suppress that connection with one link 13 and the other link 13 remove | deviates.

  (5) A plurality of types of mounting members 30 having different lengths in the circumferential direction of the sliding protrusions 32 (lengths in the sliding direction in the sliding grooves 28) are prepared. If the attachment member 30 attached to the link 13 is replaced with another attachment member 30 having a different circumferential length of the sliding protrusion 32, the range of the rotation angle between the two links 13 adjacent in the series direction X Can be changed. That is, even if the specification of each link 13 is not changed, the range of the rotation angle between two links 13 adjacent in the series direction X can be changed by simply replacing the attachment member 30.

(Example of change)
In addition, you may change the said embodiment as follows.
As shown in FIG. 6, in each link part 12, an arcuate engagement recess 40 having a circumferential width wider than the notch recess 25 is provided on the inner surface of the outer thin part 20, and the inner thin part 21 The outer surface is provided with an arc-shaped engaging convex portion 41 that is slidably inserted into the engaging concave portion 40 along the circumferential direction. Then, when the two adjacent links 13 in the series direction X are rotated, the engaging convex portion 41 hits the side surface in the circumferential direction of the engaging concave portion 40, so that the rotational range of the two links 13 is reduced. You may make it regulate. In this case, the engagement recess 40 and the engagement protrusion 41 constitute a restriction mechanism that restricts the rotation range of the two links 13 adjacent in the series direction X. Furthermore, in this case, the rotation range of the two links 13 adjacent in the series direction X is regulated when the sliding projection 32 of the mounting member 30 hits the regulation surface 25a in the cutout recess 25 constituting the sliding groove 28. This is set so as to be narrower than when the engaging convex portion 41 hits the side surface in the circumferential direction of the engaging concave portion 40 and is regulated (when regulated by the regulating mechanism). If it does in this way, the rotation range of two links 13 adjacent in the serial direction X can be changed by whether the attachment member 30 is attached to each link 13 or not. Therefore, it is possible to reduce the types of attachment members 30 to be prepared in order to change the rotation range of the two links 13 adjacent in the series direction X.

  -You may change the attachment member 30 to the attachment member 50 shown in FIG. That is, the mounting member 50 omits the pair of screw insertion holes 34 in the mounting member 30 and reduces the width of the flange portion 31 in the series direction X and the width direction Y, so that the surface of the flange portion 31 on the sliding convex portion 32 side. Fitting pins 51 are provided at both end portions in the thickness direction Z. And when changing the attachment member 30 to the attachment member 50, as shown in FIG. 8, it replaces with the fitting pin 51 on the outer surface of the link part 12 of the one side of each link 13 instead of the screw hole 26. A fitting hole 52 that can be fitted is provided. In this way, the attachment member 50 can be easily attached to the link portion 12 simply by fitting the fitting pin 51 into the fitting hole 52.

The flange portion 31 of the attachment member 30 is not necessarily provided with the curved portion 33.
-The connection convex part 23 may abbreviate | omit the enlarged diameter part 23a. In this case, the outer diameter of the connecting convex portion 23 is set so as to be pivotably fitted to the connecting hole 22.

  The sliding protrusion 32 in the mounting member 30 is changed to a recess, and the notch recess 25 of the link part 12 is changed to a protrusion protruding outward in the width direction Y, and the protrusion is slidably accommodated in the recess. You may comprise.

  In the cable protection guide device 11, the second connecting portion 15 may be configured to be detachable with respect to the pair of link portions 12 constituting the link 13. That is, in addition to the first connecting portion 14, the second connecting portion 15 may be configured to be detachable with respect to the pair of link portions 12 constituting the link 13.

  DESCRIPTION OF SYMBOLS 11 ... Cable protection guide apparatus, 12 ... Link part, 13 ... Link, 14 ... 1st connection part, 15 ... 2nd connection part, 22 ... Connection hole as an example of a pin hole, 23 ... As an example of a pin part Connection convex part, 23a ... Diameter-expanded part, 24 ... Convex curved surface, 25 ... Notch recessed part as an example of a 1st control part, 25a ... Restriction surface, 27 ... Concave surface, 30, 50 ... Mounting member, 31 ... Flange part, 32 ... Sliding convex portion as an example of the second restricting portion, 33 ... Curved shape portion, 40 ... Engaging concave portion constituting the regulating mechanism, 41 ... Engaging convex portion constituting the regulating mechanism, SK ... Accommodating space, TK ... Cables, X ... Series direction as second direction, Y ... Width direction as first direction.

Claims (6)

A link having a pair of link portions facing each other in the first direction;
A first connecting part for connecting a pair of link parts opposed in the first direction;
A second connecting portion that connects the pair of link portions at a position facing the first connecting portion;
With multiple
The plurality of links are arranged in series in a second direction orthogonal to the first direction, and ends of the pair of link portions of two adjacent links in the second direction are arranged in the first direction. They are connected to each other so that they can rotate freely.
Cables are provided in a housing space formed to extend in the second direction surrounded by the pair of opposed link portions, the first connection portion, and the second connection portion in the plurality of links. A cable protection guide device that accommodates in a manner that can be guided in accordance with the movement of the link located at one end of the link,
A first restricting portion provided in one link portion on the side where the end portion is disposed outside, among the link portions in which the end portions are overlapped in the first direction in the connecting portion of the two adjacent links; An attachment member that is detachably attached to the other link portion on the side where the end portion is disposed inside;
With
When the attachment member is attached to the other link portion, the flange portion covering a part of the outer surface of the one link portion and the two adjacent links rotate. A cable protection guide device comprising: a second restricting portion that engages with the restricting portion to restrict a rotation range between the two adjacent links. One of the first restricting portion and the second restricting portion is constituted by a concave portion and the other is constituted by a convex portion capable of relatively moving in the concave portion,
2. The cable protection according to claim 1, wherein the concave portion includes a restriction surface that restricts the rotation range when the convex portion hits when the two adjacent links rotate. Guide device. A pin hole is provided at one end of the one link portion, and a pin portion having an enlarged diameter portion having an outer diameter larger than the inner diameter of the pin hole is provided at the other end portion of the other link portion. And
The said pin part is comprised so that elastic deformation is possible so that it may reduce in diameter until the said enlarged diameter part may become an outer diameter which can be inserted in the said pin hole, The Claim 1 or Claim 2 characterized by the above-mentioned. Cable protection guide device. The link portion has a concave curved surface corresponding to the convex curved surface at a position between the end surface of the other end portion and the central portion in the second direction, while the end surface of the one end portion in the second direction is formed in a convex curved surface. Formed,
The two adjacent links are connected so that the convex curved surface and the concave curved surface move relative to each other along the mating surface when rotating.
The flange portion of the attachment member attached to the other link portion has a curved shape portion extending along the concave curved surface, and at least both ends of the curved shape portion are surfaces outside the one link portion. The cable protection and guide device according to claim 2, wherein a part of the cable is covered. A regulation mechanism for regulating the rotation range of the two adjacent links;
5. The rotation range when the convex portion is restricted by hitting the restriction surface in the concave portion is narrower than the rotation range restricted by the restriction mechanism. Cable protection guide device of description. A method of using the cables protection guide device according to any one of claims 1 to 5,
A plurality of types of the attachment members different from each other in the second restricting portion that engages with the first restricting portion and restricts the rotation range;
Cables protection, wherein the attachment member detachably attached to the other link portion is exchanged between the plurality of types of attachment members to change a rotation range between the two adjacent links. How to use the guidance device.