Source: https://patents.google.com/patent/EP1030426A2/en
Timestamp: 2020-04-09 12:01:02
Document Index: 515045550

Matched Legal Cases: ['art 113', 'art 113', 'art 113', 'art 113', 'art 113', 'art. 102']

EP1030426A2 - Cable chain - Google Patents
Cable chain Download PDF
EP1030426A2
EP1030426A2 EP00201983A EP00201983A EP1030426A2 EP 1030426 A2 EP1030426 A2 EP 1030426A2 EP 00201983 A EP00201983 A EP 00201983A EP 00201983 A EP00201983 A EP 00201983A EP 1030426 A2 EP1030426 A2 EP 1030426A2
EP00201983A
EP1030426B1 (en
EP1030426A3 (en
Hitoshi c/o Kunimorikagaku Ltd. Fukao
1996-02-06 Priority to JP4542396 priority Critical
1996-02-06 Priority to JP4542396A priority patent/JP3547891B2/en
1996-04-05 Priority to JP11045696 priority
1996-08-29 Priority to EP19960306252 priority patent/EP0789167B1/en
1996-08-29 Application filed by Kunimorikagaku Ltd filed Critical Kunimorikagaku Ltd
2000-08-23 Publication of EP1030426A2 publication Critical patent/EP1030426A2/en
2000-10-25 Publication of EP1030426A3 publication Critical patent/EP1030426A3/en
2003-05-14 Publication of EP1030426B1 publication Critical patent/EP1030426B1/en
2004-02-12 First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26385403&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1030426(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
2020-04-09 Application status is Revoked legal-status Critical
229920000642 polymers Polymers 0 abstract description 16
239000011347 resins Substances 0 abstract description 16
229920003002 synthetic resins Polymers 0 abstract description 16
239000000057 synthetic resins Substances 0 abstract description 16
-1 etc. Polymers 0 description 1
Chain unit members consisting of a pair of side plates opposite each at an appointed interval and a supporting plate by which the lower parts of the side plates is formed of synthetic resin. The supporting plates of the adjacent chain unit members are linked with each other bendably in the lengthwise direction by hinge members made of synthetic resin having an integral hinge property. The upper opening of the respective chain unit members is covered up by a covering member.
Thereby, it is possible to decrease the production cost by simplifying the structure of chain unit members, and it is also possible to carry out attaching works in a short time by simplifying the connection works of the respective chain unit members. Furthermore, it is possible to prevent resin powder from being generated due to wearing of the respective chain unit members. Still furthermore, a cable is able to be securely accommodated despite a covering member being openably formed integrally at the guide members.
There was a fear that a cable which supplies electric power, control signals, fluid or the like to a drive member attached to a reciprocating movable body was trailed, bent and finally damaged in line with movements of said movable body.
In order to solve this drawback, as shown in, for example, Japanese laid open patent publication No. Hei-2-186146, various kinds of cable chains have been developed, wherein a plurality of guide members, in which a pair of link plates having an axial part at one end thereof and an axial supporting part at the other end thereof and guide plates provided on and below said link plate are formed to be frame-like, are bendably connected to each other by causing said axial part thereof to be engaged with said axial supporting part thereof, said guide plates respectively have a flexible tongue piece protruded at least at one end in the forward and backward direction, and said tongue piece is provided so as to close between said guide plates.
In this kind of cable chain, guide members of a quantity responsive to the moving distance of a movable body are connected to each other so as to secure a necessary length by causing the axial part at one link plate to be engaged with the axial supporting part at the other link plate, the upper opening thereof is closed by a covering member after a cable is accommodated in the respective guide members.
Therefore, in a conventional cable chain, there were some shortcomings. That is, since the connection mechanism of the respective guide members is complicated, the production cost thereof is high, and simultaneously the connection of the respective guide members is cumbersome.
Furthermore, such a kind of cable chain generates wearing powder due to wearing by friction between chain unit members in line with the bending thereof. Therefore, this kind of cable chain is not able to be used in foodstuff processing equipment, production equipment for producing electronic components, which is to be installed in a clean room, etc.
Still furthermore, in the abovementioned cable chain, since it is necessary to form guide members and covering members separately, the production efficiency is not good.
The invention was developed in order to solve these and other shortcomings inherent to the conventional cable chains. The present invention provides a cable chain in which the structure of chain unit members is simplified to lower the production cost thereof and the connection work of the respective chain unit members is able to be easily performed.
Embodiments of the invention provide a cable chain which does not generate any wearing powder due to the friction wearing of chain unit members, and a cable chain which is able to securely accommodate a cable despite that the cable chain has such a structure in which the covering members are openably formed integrally with guide members.
Further details and advantages of this invention will be seen in the accompanying drawings and following description of preferred, exemplary, embodiments. In the drawings:
Fig.1 is a perspective view showing the outline of a cable chain according to a first preferred embodiment,
Fig.2 is a longitudinally sectional view taken along the line II-II in Fig.1,
Fig.3 is a longitudinally sectional view showing a fixing example of a hinge member,
Fig.4 is a perspective view showing an attached state of a cable,
Fig.5 is a longitudinally sectional view of a bent state of a cable chain,
Fig.6 is a perspective view showing a modification example of a chain unit member,
Fig.7 is a longitudinally sectional view a chain unit member shown in Fig.6,
Fig.8 is a longitudinally sectional view showing a cable chain according to a second preferred embodiment,
Fig.9 is a longitudinally sectional view taken along the line IX-IX in Fig.8,
Fig.10 is a longitudinally sectional view taken along the line X-X in Fig.8,
Fig.11 is a longitudinally sectional view taken along the line XI-XI in Fig.8,
Fig.12 is a longitudinally sectional view showing an opened state of a covering member, and
Fig.13 is a longitudinally sectional view showing a bent state of a cable chain.
A description is given below of preferred embodiments of the invention.
In Fig.1 to Fig.3, a cable chain 1 is formed of a number of chain unit members 3 connected to each other by hinges 5.
The respective chain unit members 3 are connected to each other by hinge members 5 to be arrayed with the inclination directions of the respective openings 13a alternately differed. Said hinge member 5 is made of synthetic resin having an excellent integral hinge property such as polypropyrene resin, polyamide resin, etc., is positioned on the upper surface of the supporting plate 7 and has a length in the connection direction covering a plurality of chain unit members 3. An axial portion 15 having a diameter-swelled head portion 15a is formed integrally on the bottom of the hinge member 5 insertably into the engaging opening 9, whereby when the axial portion 15 of the hinge member 5 is pressure-fit in the respective engaging openings 9, the diameter-swelled head portion 15a is engaged in the diameter-swelled portion 9b so as to connect the respective chain unit members 3 to each other.
As shown in Fig.3, a band-like hinge member 5 which is made of synthetic resin having an integral hinge property mentioned above, is molded to be like a plate having an axial portion 15 at the bottom thereof, and connects the respective chain unit members 3 by pressure fitting the axial portion 15 of the hinge portion 5 into the respective engaging opening 9 of the respective chain unit members 3, has a tip-split groove 15b formed at the diameter-swelled head portion 15a, thereby permitting the diameter-swelled portion to be made small in its diameter, whereby the pressure-fitting thereof is made easier. A plurality of chain unit members 3 which are arrayed so as to make the respective openings 13a alternate is regarded as one unit (in the illustrated example, two chain unit members 3 are made one unit), and a hinge member 5 may be secondarily formed by injecting the abovementioned synthetic resin onto the upper surface of a supporting plate 7 through an opening engaging opening 9 at the chain unit member 3. In this case, since a part of the hinge member 5 is welded to the upper surface of the supporting plate 7 while being filled up in the engaging portion 9, it is possible to tightly link the chain unit members with each other. Furthermore, in the case of secondarily molding a hinge member 5 at a chain unit member 5 with the abovementioned synthetic resin, the engaging opening 9 may be a non-through hole. Although there are cases where the mutual weldability between said chain unit member 3 and the hinge member 5 is not good, depending upon the kind of resin, it is possible to tightly link the chain unit members 3 with each other by filling up a part of the hinge member 5 in the engaging opening 9.
In Fig.4 and Fig.5, a cable 17 is gradually bent along the opening 13a of the covering member 13 at the respective chain unit members 3 and is inserted into and accommodated in the cable chain 1 (See Fig.4). At this time, the cable is almost straightly accommodated relative to the cable chain 1. Therefore, it is possible to prevent the cable 17 from coming off through the respective serrated successive openings 13a.
As described above, one end of the the cable chain 1 and the accommodated cable 17 is attached to the fixed side and the other end thereof is attached to a movable body. As the movable body is caused to reciprocate, the cable chain 1 is able to follow the reciprocations of the movable body as shown in Fig.5 and the cable 17 bent and accommodated in the respective unit members 3 due to the hinge members 5 bent by the grooves 5a is bent and is guided.
(2) In the above description, although a covering member 13 having an opening 13a is integrally molded on the upper surface of the side wall portion 11 at each of the chain unit members 3, as shown in Fig.6 and Fig.7, the chain unit members 63 may be constructed by covering members 69 which cover up the base portion 67 and the upper opening of said base portion 67 and the base portions 67 may be linked with each other by hinge members 65 similar thereto. That is, the base member 67 is molded so that a pair of side plates 73 are opposite each other at both ends of the supporting plate 71, and at the same time an engaging axis 75 may be integrally formed at the side central portion of each side plate 73. The covering member 79 molds an upper surface plate 79 which links a pair of hanging-down plates 77 hanging down along the outer surface of each side plate 73 with the upper end portion of said hanging-down plate 77, and simultaneously forms an axial supporting opening 77a at the middle part of each hanging down plate 77. Still furthermore, the hinge members 65 are similar to those 5 in the above description. A detailed description thereof is omitted.
As described above, after a cable 81 is accommodated between the side plates 73 at the base portions 67 with which the respective chain unit members are mutually linked by the hinge members 65, the covering members 69 are pressure-fit while elastically deforming the hanging down plates 77 in the expanding direction from the upside of the side plates 73, and the engaging axis 79 is engaged in the axial supporting opening 77a, whereby the attaching is completed. At this time, if tapered faces are formed to be opposite each other at the end face of the engaging axis 79 and at the lower part of the hanging-down plates 77, it is possible to facilitate the pressure fitting of the covering members 69.
In Fig.8 through Fig.11, a cable chain 101 is constructed so that a number of chain unit members 103 are linked with each other by hinge members 105, wherein each of the chain unit members 103 is constructed so that a covering member 109 is secondarily formed at a guide member 107.
The respective guide members 107 are formed of polyamide resin (including a strengthened complex resin made of polyamide reinforced with glass fibers or carbon fibers) to have supporting plates 115, by which a pair of side plates 111,113 retained at an appointed interval are connected to the lower parts of said side plates 111,113, and are molded to be upward channel-shaped.
A plurality of through holes 115a, 115b, 115c are formed with some interval retained in the direction orthogonal to the connection at each end portion and middle portion of the supporting plate 115. Also, a plurality of through holes 115d, 115e are formed at both the ends at the supporting plate 115 of the guide member 107' (Since each member at the guide members 107' is substantially similar to those for the guide member, the same reference number is given, and the description thereof is omitted) disposed between the guide members 101 on which a plurality of through holes 115a, 115b, 115c are formed at both the ends and middle part of the supporting plate 115.
A covering member 109 is secondarily molded between the curved portions 111a, 113a of the respective side plates. Said covering member 109 is formed of a synthetic resin such as polyester-based elastomer resin, etc. having a high melting point, which has a non-welding property for polyamide resin composing guide members 107. An axial supporting portion 109a which covers up the entire periphery of the central portion of the axial portion 111b and covers up the lower half peripheral part of the curved portion 111b located at both sides of the axial portion 111b is integrally formed at the end part at the curved portion 111a side, and an engaging portion 109b fitted in a recess 113b and another engaging portion 109c engageable with the part 113c are respectively integrally formed at the side end portion at the other curved portion 113a side.
Furthermore, as regards a cable chain 101 in which guide members 107, 107' are linked with each other by a hinge member 105 which is formed like a plate in advance, a covering member 109 may be secondarily formed after pre-formed guide members 107, 107' are linked with each other by pre-formed hinge member 105. Also, in a case where a hinge member 105 is secondarily molded thereby causing the guide members 107,107' to be linked with each other, a covering member 109 or hinge member 105 may be thirdly molded simultaneously with molding said hinge member 105 or after said hinge 105 or covering member 109 is secondarily molded. Still furthermore, in a case where a hinge member 105 and a covering member 109 are secondarily molded at the guide members 107,107' at the same time as described above, any polyamide based elastomer resin, polypropyrene resin, or polyamide resin may be acceptable in addition to the above polyester based elastomer resin as a covering member 107 and a hinge member 105. Furthermore, in a case where a covering member 109 is molded separately from the hinge member 105 relative to the guide members 107,107', polyester resin may be also acceptable in addition to the abovementioned resin.
Each of the abovementioned resins has a high melting point characteristic. Therefore, in any case where a covering member 109 is formed of, for example, polyamide resin which is identical to that of the guide member 107,107', or where a covering member 109 is molded by injecting polyamide resin to the cooled down and hardened guide members 107,107', both of them are able to be kept in a non-welded state.
In Fig.12 and Fig.13, in order to accommodate a cable 117 between the side plates 111,113 of the respective guide members 107,107' which are linked with each other, as shown in Fig.12, a covering member 109 molded between the curved portions 111a, 113a of the side plates 111,113 is caused to rotate in the opening direction, centering around the axial portion 111b, after the engagement of the engaging portion 109c with the part 113c is cancelled by lifting the fitting portion 109b fitted in the recess 113b upward, thereby an opening 1119 to be formed between the curved portions 111a, 113a.
At this time, since said covering member 109 itself is formed in a non-welded state relative to polyamide resin of which the guide members 107,107' are formed as described above, it is possible to remove the fitting portion 109b from the recess 113b and the engaging portion 109c from the part 113c, respectively, and simultaneously it is possible to cause the axial supporting portion 109a to rotate around the axial portion lllb.
After the cable 117 is accommodated in the space between the side plates 111,113 through the opening 119 formed between the curved portions 111a, 113a of the guide members 107,107', the covering member 119 is caused to rotate in the reverse direction of the above centering around the axial portion 111b, whereby while causing the engaging portion 109c to be engaged with the part 113c, the fitting portion 109b is fitted to and inserted into the recess 113b to cause the opening between the curved portions 111a, 113a to be closed.
As shown in Fig.13, the cable chain 101 in which the cable 117 is accommodated as described above, is able to bendably guide the cable 117 in line with linear reciprocatory movements of a movable body while bending the chain unit members 103 by hinge members 105. At this time, since the axial supporting portion 109a of the covering member 109 is axially supported as described above and the engaging portion 109c is engaged with the part 113c, a closed state is able to be maintained even though a bending cable 117 is brought into contact with the inside of the covering member 109, whereby the cable 117 is able to be prevented from coming off or springing out.
Embodiments of the invention may include the features of the following enumerated paragraphs.
1. A cable chain comprising
a number of chain unit members made of synthetic resin, on which a supporting plate which mutually connects together a pair of side plates opposite each other at an appointed interval and side plates opposite each other at both ends of said supporting plates are formed at the lower portion;
a synthetic resin made covering member which covers up an upper opening of the respective chain unit members; and
a synthetic resin made hinge member having an integral hinge property by which adjacent chain unit members and supporting plates are bendably connected to each other in the lengthwise direction.
2. A cable chain as set forth in para 1, wherein the covering member is integrally formed with an opening secured at the top surface thereof.
3. A cable chain as set forth in para 1, wherein the covering member has a hanging-down plate, which hangs down along the top plate covering the upper opening of side plates and said side plate and has a part to be engaged with the engaging part of said side plate, integrally formed therewith.
4. A cable chain as set forth in para 1, wherein a covering member is molded of resin having a high melt-point in such a manner that chain unit members are integrally formed with a supporting part provided at the upper end of one side plate and a part to be engaged provided at the upper part of the other side plate, and simultaneously said supporting part rotatably supported at the axial portion and an engaging part engageable with the part to be engaged are provided between the upper parts of the side plates.
5. A cable chain as set forth in paras 1, 2, 3, or 4, wherein a hinge member is made of synthetic resin having an integral hinge property and is molded in advance to be a plate-like member having an engaging part to be engaged in an attaching hole secured at supporting plates of adjacent chain unit members.
6. A cable chain as set forth in paras 1, 2, 3, or 4, wherein a hinge member is welded to and linked with a supporting member of the respective chain unit members adjacent to each other by injecting synthetic resin having an integral hinge property.
7. A cable chain as set forth in paras 5 or 6, wherein when a hinge member is made integral with a supporting plate of the respective chain unit members adjacent to each other by injecting synthetic resin having an integral hinge property a hinge member is welded thereto by filling an opening secured at the supporting plate with said resin.
A cable chain for guiding hoses, cables and the like between a fixed and a movable connection point, comprising;
a number of chain unit members (3) each of which includes a supporting plate (7) connecting together a pair of opposed side plates (11) at their lower ends and a covering member (13) the cable chain being characterized by:
a plurality of engaging openings (9) formed at the supporting plate (7) at the respective chain unit member (3);
a hinge member (5) having an integral hinge property and a plurality of axial portions (15).
A cable chain as claimed in claim 1, wherein each of axial portions (15) comprises a diameter-swelled head portion (15a) on the bottom of the hinge member and each of engaging openings (9) comprises a diameter-swelled portion (9a).
A cable chain as claimed in claim 2, wherein the axial portion (15) has a tip-split groove (15b) formed at the diameter-swelled head portion (l5a).
A cable chain as claimed in one of the claims 1 to 3, wherein the engaging openings (9) are formed at an equal interval at the forward, backward and central portions of the supporting plate (7).
EP00201983A 1996-02-06 1996-08-29 Cable chain Revoked EP1030426B1 (en)
JP4542396 1996-02-06
JP4542396A JP3547891B2 (en) 1996-02-06 1996-02-06 Cable chain
JP11045696 1996-04-05
EP19960306252 EP0789167B1 (en) 1996-02-06 1996-08-29 Cable chain
EP19960306252 Division EP0789167B1 (en) 1996-02-06 1996-08-29 Cable chain
EP1030426A2 true EP1030426A2 (en) 2000-08-23
EP1030426A3 EP1030426A3 (en) 2000-10-25
EP1030426B1 EP1030426B1 (en) 2003-05-14
ID=26385403
EP00201983A Revoked EP1030426B1 (en) 1996-02-06 1996-08-29 Cable chain
EP19960306252 Expired - Lifetime EP0789167B1 (en) 1996-02-06 1996-08-29 Cable chain
US (1) US5836148A (en)
EP (2) EP1030426B1 (en)
DE (4) DE69628209D1 (en)
ES (2) ES2158247T3 (en)
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1996-08-05 US US08/692,383 patent/US5836148A/en not_active Expired - Lifetime
1996-08-29 ES ES96306252T patent/ES2158247T3/en not_active Expired - Lifetime
1996-08-29 EP EP00201983A patent/EP1030426B1/en not_active Revoked
1996-08-29 DE DE1996628209 patent/DE69628209D1/en not_active Revoked
1996-08-29 DE DE1996614081 patent/DE69614081T2/en not_active Expired - Lifetime
1996-08-29 DE DE1996614081 patent/DE69614081D1/en not_active Expired - Lifetime
1996-08-29 DE DE1996628209 patent/DE69628209T2/en not_active Expired - Lifetime
1996-08-29 EP EP19960306252 patent/EP0789167B1/en not_active Expired - Lifetime
1996-08-29 ES ES00201983T patent/ES2193035T3/en not_active Expired - Lifetime
EP0789167B1 (en) 2001-07-25
DE69614081T2 (en) 2002-03-21
ES2158247T3 (en) 2001-09-01
EP1030426B1 (en) 2003-05-14
ES2193035T3 (en) 2003-11-01
DE69628209D1 (en) 2003-06-18
DE69628209T2 (en) 2004-04-01
DE69614081D1 (en) 2001-08-30
EP1030426A3 (en) 2000-10-25
EP0789167A1 (en) 1997-08-13
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KR20120085188A (en) 2012-07-31 Articulated cables-and-the-like protecting and guiding apparatus
EP1256153B1 (en) 2004-04-28 Energy guiding chain
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JP4144869B2 (en) 2008-09-03 Cable protection guide device
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KR101481747B1 (en) 2015-01-12 Cable protection and guide device
JP4749494B1 (en) 2011-08-17 Multi-joint support member for cable protection guide
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2004-04-14 26 Opposition filed
Opponent name: IGUS SPRITZGUSSTEILE FUER DIE INDUSTRIE GMBH
2007-10-31 GBPR Gb: patent revoked under art. 102 of the ep convention designating the uk as contracting state
2007-10-31 27W Revoked