KR20160041749A

KR20160041749A - Flat cable for moving part wiring

Info

Publication number: KR20160041749A
Application number: KR1020150095769A
Authority: KR
Inventors: 데티안 후앙; 다카노부 와타나베; 노리히로 니시우라
Original assignee: 히타치 긴조쿠 가부시키가이샤
Priority date: 2014-10-08
Filing date: 2015-07-06
Publication date: 2016-04-18
Also published as: JP2016076433A; TW201614682A

Abstract

The present invention provides a flat cable for movable portion wiring that is capable of preventing, even without fixing to a cableveyor, both end portions facing each other through a bent portion from drooping for gravity during repeated U-shaped bending of a fabric-shaped cable and maintaining a high level of pliability or flexibility unique to the fabric-shaped cable as long as possible. A flat cable (100) for movable portion wiring is provided with a fabric-shaped cable (101) and a tubular coating member (102) in which the fabric-shaped cable (101) is accommodated. The fabric-shaped cable (101) is provided with a plurality of wires (103) arranged in parallel and a fiber thread (104) woven to provide sewing between the plurality of wires (103). The tubular coating member (102) has a C-shaped cross-section that has a cut part (115) in a cross-sectional view.

Description

{FLAT CABLE FOR MOVING PART WIRING}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a movable part wiring flat cable (movable part wiring flat cable) which is wired to a movable part which receives repeated U-shaped bending (U-shaped bending) in an industrial robot or the like.

BACKGROUND ART [0002] Recently, as a movable part wiring flat cable which is wired to a moving part subjected to repeated U-shaped bending in an industrial robot or the like, a fiber yarn is woven between a plurality of electric wires arranged in parallel (Called FCBAND (registered trademark) cable) which is made of a woven fabric is used.

: Japanese Unexamined Patent Application Publication No. 2013-062065 : Japanese Unexamined Patent Application Publication No. 2013-058448

However, the woven cable is superior in flexibility (flexible) and flexible (flexible) compared with a bundled cable (bundled cable) in which a plurality of wires arranged in parallel are covered in a bundle by a covering layer Both end portions facing each other through the bent portion can not be held parallel to each other due to gravity when the U-shaped bending is repeated, There is a concern that there is a fear that the company will be cut off.

In order to solve this problem, for example, it is conceivable that the fabric-like cable is fixed to a cable or cable so that both opposite ends of the cable-like cable can be prevented from being stretched by gravity. A wiring space is required as much as the cable bare is disposed, and a separate problem arises in that the cost is increased as the cable bare is used.

Therefore, it is an object of the present invention to provide a cable-type cable which is capable of restraining the opposite ends of the opposite ends of the cable-shaped cable from being bent by the gravity when the cable is subjected to repeated U- And to provide a movable part wiring flat cable capable of maintaining high flexibility and flexibility as much as possible.

SUMMARY OF THE INVENTION The present invention, which is designed to achieve the above object, includes a cable-like cable and a tubular sheath member in which the cable-like cable is housed, wherein the cable-like cable comprises a plurality of electric wires arranged in parallel, Wherein the tubular sheathing member is a flat cable for moving part wiring having a C-shaped end face having a cut portion in a part when viewed from the cross section.

The cut portion may be disposed adjacent to one side of the woven cable located outside the bend when the woven cable is subjected to repeated U-shaped bending.

And a wear-resistant sheet inserted between one surface of the woven cable and the tubular covering member.

Wherein said tubular sheathing member comprises an inner tubular sheathing member having a C-shaped cross-section in which said sheath-shaped cable is received therein and which has a cut-away portion in a transverse section, And the outer tubular covering member having a C-shaped cross-section having a part cut in a cross section when the tubular covering member is housed therein.

The cut portion of the inner tubular sheathing member may be disposed adjacent to one side of the woven cable located outside the bend when the woven cable is subjected to repeated U-shaped bending.

The cutting portion of the outer tubular sheathing member may be disposed adjacent to the other side of the woven cable located inside the bend when the woven cable is subjected to repeated U-shaped bending.

And a wear-resistant sheet inserted between one side of the woven-fabric cable and the inner tubular covering member.

The woven-fabric cable may be a plurality of laminated layers.

And a wear-resistant sheet interposed between the plurality of woven-fabric cables.

The electric wire may include an outermost layer formed of a fluororesin.

The fiber yarn may be formed of a fluororesin.

The tubular cover member may be made of a fluororesin or a fluororubber.

The abrasion resistant sheet may be formed of a fluororesin.

According to the present invention, even if the cable is not fixed to the cable bear, it is possible to restrain the opposing ends of the opposite ends of the cable through the bent portion when the cable is subjected to repeated U-shaped bending by gravity, It is possible to provide a flat cable for moving part wiring which can keep flexibility as much as possible.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic cross-sectional view showing a movable part wiring flat cable according to a first embodiment. Fig.
2 is a side view schematically showing the movable part wiring flat cable according to the first embodiment.
Fig. 3 is a schematic cross-sectional view showing a state in which a woven cable is received in a tubular covering member; Fig.
4 is a schematic cross-sectional view showing the movable part wiring flat cable according to the second embodiment.
5 is a cross-sectional schematic diagram showing a movable portion wiring flat cable according to a third embodiment.
6 is a schematic cross-sectional view showing a movable part wiring flat cable according to a fourth embodiment.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

[First Embodiment]

As shown in Fig. 1, the movable part wiring flat cable 100 according to the first embodiment includes a woven cable 101 and a woven cable 101 And a tubular covering member (102) accommodated in the tubular covering member (102).

The woven-fabric cable 101 includes a plurality of electric wires 103 arranged in parallel and a fiber yarn 104 woven to sew a plurality of electric wires 103 between the woven- And a plurality of wire bundles 103 constitute warp yarns and are stitched so that the fiber yarns 104 constitute weft yarns.

In all of the cross-sectional views, the fiber yarns 104 are drawn on both sides in the width direction of the fabric-like cable 101 for convenience. However, in reality, one fiber yarn 104 And is sewn between.

The electric wires 103 are composed of a tubular cable 107 in addition to a coaxial cable 105 and an insulating cable 106 and these electric wires 103 are alternately Or arranged in a predetermined order to constitute a plurality of electric wires 103.

The coaxial cable 105 is for transmitting an electric signal and includes an inner conductor 108 made of a metal wire, an insulating layer 109 formed around the inner conductor 108, An outer conductor 110 formed by winding a metal wire around the layer 109 in the form of a coil or a braid and a jacket formed around the outer conductor 110, (111).

The metal wires constituting the internal conductor 108 and the external conductor 110 are made of copper wire or aluminum wire having excellent conductivity. The metal wire may be a single wire or a stranded wire, and may be plated on the surface.

The insulating layer 109 and the jacket 111 may be formed of a tetrafluoroethylene-perfluoro alkyl vinyl ether copolymer (PFA), a tetrafluoroethylene-hexafluoropropylene copolymer Fluorine containing a high activity (slipperiness) or abrasion resistance (abrasion resistance) such as tetrafluoroethylene-hexafluoropropylene copolymer (FEP) or polytetrafluoroethylene (PTFE) and low vibration- And is formed of a resin (fluorine resin).

The insulating cable 106 is for supplying electric power and includes a conductor 112 made of a metal wire and an insulating layer 113 formed around the conductor 112. [

The metal wire constituting the conductor 112 is made of copper wire or aluminum wire having excellent conductivity. The metal wire may be a single wire or a twisted wire, or may be plated on the surface.

The insulating layer 113 is formed of a fluororesin having a high activity and a high abrasion resistance and low instability such as tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer, tetrafluoroethylene-hexafluoropropylene copolymer or polytetrafluoroethylene, Respectively.

The tubular cable 107 is used to supply a fluid such as air or water to the hollow portion 114. The tubular cable 107 may be a tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer, tetrafluoroethylene -Hexafluoropropylene copolymer or polytetrafluoroethylene, and is formed of a fluororesin having high activity and abrasion resistance and low emissivity.

As described above, the electric wire 103 has an outermost layer (outermost layer) formed of a fluororesin having high activity and low abrasion resistance and low vibration resistance, and the woven cable 101 has a U- Bending), even if it comes into contact with another member (member), it is protected by the outermost layer, so that it is hardly damaged and dust is hardly generated.

The fiber yarn 104 may be a fluororesin having a high activity such as tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer, tetrafluoroethylene-hexafluoropropylene copolymer, or polytetrafluoroethylene and having high abrasion resistance and low instability Respectively.

Therefore, the fiber yarn 104 is hardly broken even if it contacts the other member when the woven fabric 101 is subjected to repeated U-shaped bending, and a plurality of electric wires (for example, 103 can be prevented from being disturbed.

The tubular cover member 102 has a C-shaped section (C-shaped section) having a cut portion 115 in a part thereof when viewed from a transverse section, and tetrafluoroethylene-perfluoroalkyl Vinylidene fluoride rubber (FKM), fluorine resin having high activity and abrasion resistance and low emissivity, such as vinyl ether copolymer, tetrafluoroethylene-hexafluoropropylene copolymer or polytetrafluoroethylene, , Tetrafluoroethylene-propylene rubber (FEPM), tetrafluoroethylene-perfluoroalkyl vinyl ether rubber (FFKM), etc., and fluorine rubber having high wear resistance and low emissivity.

Therefore, the tubular sheathing member 102 is less likely to be damaged, and dust is less likely to be generated even when the sheathed cable 101 is brought into contact with another member when it is subjected to repeated U-shaped bending.

Since the fluororesin or the fluorine rubber has an appropriate hardness, the filamentary cable 101 is accommodated in the tubular sheathing member 102 formed of fluorine resin or fluorine rubber, Even when the fabric-like cable 101 is not fixed to the fabric-like cable 101, the opposite ends of the fabric-like cable 101 through the bent portion are subjected to repeated U- It is possible to inhibit slackening.

Further, since the tubular cover member 102 is of the same thickness as the cover layer (cover layer) of the bundle-covered cable (bundle covering cable) and its size is smaller than that of the cable bear, the tubular cover member 102 is adopted The wiring space can be reduced as compared with the case where the cable bare is adopted.

Further, since the tubular cover member 102 is sufficiently low in cost as compared with the cable bear, the cost can be reduced as compared with the case where the cable bear is adopted by employing the tubular cover member 102. [

The cut portion 115 is disposed adjacent to one surface of the woven cable 101 located outside the bent portion when the woven cable 101 is subjected to repeated U-shaped bending as shown in Fig. .

Accordingly, when the woven fabric cable 101 is subjected to repeated U-shaped bending, the interval between the cut portions 115 is widened and the tubular covering member 102 is deformed. Therefore, stress applied to the bending portion Can be pulled out to the outside, and it is possible to suppress disconnection of the plurality of electric wires 103 constituting the woven cable 101.

Further, when the woven fabric cable 101 is subjected to repeated U-shaped bending, the interval between the cut portions 115 is widened, so that the inner space of the tubular covering member 102 accommodating the woven fabric cable 101 is expanded Shaped cable 101 does not interfere with the movement of the woven cable 101 even when the woven cable 101 is accommodated in the tubular covering member 102 and the flexibility of the woven cable 101 is high, And flexibility can be maintained as much as possible.

The flexible cable 100 is connected to both ends of the flexible cable 100 so that the fabric cable 101 does not protrude from the cut portion 115 when the fabric cable 101 receives repeated U- 116, respectively.

3, the tubular cover member 102 is folded in the direction of the white arrow shown in the drawing to widen the interval between the cut portions 115, Shaped cable 101 is inserted into the tubular covering member 102 only by inserting the tubular cable 101 over the entire length by the tubular covering member 102 by inserting the tubular cable 101 in the direction of the black arrow shown in the figure, Shaped cable 101 can be accommodated in the tubular covering member 102 in a short time by a simple operation even if the length of the fabric-like cable 101 is long.

Even when it is necessary to replace the tubular cover member 102 due to deterioration over time (time degradation), it is unnecessary to perform troublesome work similarly, so that replacement of the tubular cover member 102 can be performed by a simple operation As shown in Fig.

However, by accommodating the fabric-like cable 101 in the resin tube (resin tube) having the same degree of hardness as that of the tubular cover member 102 and having a continuous cross-section when viewed from the transverse section , It is possible to suppress the opposite ends of the opposite ends of the woven cable 101 from being bent by the gravity when they are subjected to repeated U-shaped bending.

However, as described above, since the resin tube has a continuous cross section when viewed from the cross section, the resin tube is hardly deformed even if the woven cable 101 is subjected to repeated U-shaped bending, and the woven cable 101 is strongly restrained The stress imparted to the bent portion can not be taken out to the outside, so that the plurality of electric wires 103 constituting the woven-type cable 101 may be broken, and the flexibility and flexibility There is a possibility that the temperature is lowered remarkably.

When the woven cable 101 is accommodated in the resin tube, the woven cable 101 is sequentially inserted from one end of the resin tube to the other end thereof And when the length of the fabric-like cable 101 is long, the work of accommodating the fabric-like cable 101 in the resin tube becomes complicated. Therefore, compared with the case of employing the tubular covering member 102 The production yield is lowered and the replacement of the resin tube can not be performed in a short time by a simple operation.

[Second Embodiment]

4, the movable portion wiring flat cable 200 according to the second embodiment is different from the movable portion wiring flat cable 100 according to the first embodiment in that one surface of the woven cable 101 is covered with a tubular cover (Abrasion-resistant sheet) 117 interposed between the members 102. The abrasion-resistant sheet 117 may be formed of a material having high wear resistance.

The abrasion-resistant sheet 117 is made of a fluororesin having high activity and high abrasion resistance such as a tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer, a tetrafluoroethylene-hexafluoropropylene copolymer or polytetrafluoroethylene, Respectively.

In the movable part wiring flat cable 200 according to the second embodiment, when the woven cable 101 is subjected to repeated U-shaped bending, the interval between the cut portions 115 is widened and the cylindrical covering member 102 is deformed , It is possible to prevent the rim of the cut portion 115 from repeatedly contacting the fiber yarn 104, thereby reliably preventing disconnection of the fiber yarn 104. [

Therefore, the movable part wiring flat cable 200 according to the second embodiment can exhibit high reliability even in a harsh environment such as the woven cable 101 being subjected to repetitive U-shaped bending at high speed (high speed).

[Third embodiment]

As shown in Fig. 5, the movable portion wiring flat cable 300 according to the third embodiment is different from the movable portion wiring flat cable 100 according to the first embodiment in that the cylindrical cover member 102 is made of a woven cable An inner tubular sheathing member 118 having a C-shaped cross-section with a cut-away portion 115 partially in a transverse section, the inner tubular sheathing member 118 receiving the inner tubular member 101 therein, Shaped cover member 119 having a C-shaped cross-section in which a shape covering member 118 is housed inside and a cut-away portion 115 is present in a part of the cross-section as viewed from the cross section.

The cut portion 115 of the inner tubular sheathing member 118 is disposed adjacent one side of the woven cable 101 located outside the bend when the woven cable 101 is subjected to repeated U- And the cut portion 115 of the outer tubular sheathing member 119 is formed on the other side of the woven cable 101 located inside the bent portion when the woven cable 101 is subjected to repeated U- And the other surface).

In the flat cable 300 for moving part for wiring according to the third embodiment, since the woven cable 101 is not exposed to the cut portion 115, the cut portion 115 is cut into the inside of the tubular cover member 102 It is possible to prevent foreign matter from entering the cable 101 and damaging the cable 101.

In the flat cable 300 for moving part wiring according to the third embodiment, since the cut portions 115 are formed on both the inner tubular covering member 118 and the outer tubular covering member 119, The effect obtained by the moving part flat cable 100 relating to the shape of the movable part is not impaired.

In the movable part wiring flat cable 300 according to the third embodiment, like the movable part wiring flat cable 200 according to the second embodiment, between one surface of the woven cable 101 and the inner tubular covering member 118 Like the flat cable 300 for moving part for wiring according to the third embodiment, the cylindrical covering member 102 is provided with the wear-resistant sheet 117 inserted in the inside of the cloth-like cable 101 And an inner tubular sheathing member 118 having a C-shaped cross-section with a cut-away portion 115 as viewed in cross section and an inner tubular sheathing member 118 having therein a sheathed cable 101 And an outer tubular covering member 119 having a C-shaped cross-section with a cut-away portion 115 at a part thereof as seen in the transverse section Does not matter.

[Fourth Embodiment]

6, the movable portion wiring flat cable 400 according to the fourth embodiment is different from the movable portion wiring flat cable 100 according to the first embodiment in that a plurality of pieces of the woven cable 101 are laminated And a wear-resistant sheet 117 interposed between the plurality of woven-fabric cables 101 is further provided.

The movable part wiring flat cable 400 according to the fourth embodiment prevents the plurality of woven fabric cables 101 from contacting each other while increasing the mounting density of the electric wire 103, It is possible to prevent the disconnection of the contact portion 104.

In the movable part wiring flat cable 400 according to the fourth embodiment, as in the movable part wiring flat cable 200 according to the second embodiment, between one surface of the woven cable 101 and the tubular cover member 102 Like the flat cable 300 for moving part for wiring according to the third embodiment, the tubular sheathing member 102 may be provided with the wear-resistant sheet 117 in which the sheathed cable 101 is housed therein An inner tubular sheathing member 118 having a C-shaped cross-section having a cut-away portion 115 as viewed in a transverse section and an inner tubular sheathing member 118 having a sheathed cable 101 housed therein, And the outer tubular covering member 119 having a C-shaped cross-section having a cut-off portion 115 as viewed in the transverse section, The.

As described above, according to the present invention, even if the cable is not fixed to the cable bear, it is possible to restrain the opposing opposite ends of the cloth-like cable from being bent by gravity when the cable is subjected to repeated U-shaped bending, It is possible to provide a movable part wiring flat cable capable of maintaining flexibility and flexibility of the movable part as much as possible.

100, 200, 300, 400; Flat cable for moving part wiring
101; Woven cable
102; The tubular cover member
103; Electric wire
104; Fiber yarn
105; coax
106; Insulated cable
107; Corrugated cable
108; Inner conductor
109; Insulating layer
110; External conductor
111; jacket
112; Conductor
113; Insulating layer
114; Hollow portion
115; Cutting portion
116; Bondage
117; Abrasion resistant sheet
118; Inner tubular cover member
119; The outer tubular cover member

Claims

A woven cable,
And a tubular covering member (tubular covering member) in which the fabric cable is housed
Respectively,
Wherein the woven-type cable has a plurality of electric wires (wires) arranged in parallel and a fiber yarn woven between the plurality of electric wires,
Wherein the cylindrical covering member has a C-shaped section (C-shaped section) having a cut-away portion as viewed from a transverse section thereof (a flat cable for a movable section wiring).

The method according to claim 1,
Wherein the cut portion is disposed adjacent to one surface of the woven cable located outside the bent portion when the woven cable is subjected to repeated U-shaped bending (U-shaped bending).

3. The method of claim 2,
And a wear-resistant sheet inserted between one surface of the woven cable and the tubular covering member.

The method according to claim 1,
Wherein said tubular sheathing member comprises an inner tubular sheathing member having a C-shaped cross-section in which said sheath-shaped cable is received therein and which has a cut-away portion in a transverse section, And a tubular sheath member having a C-shaped cross-section having a cut-away portion as viewed from the transverse section, the flat tubular sheathing member being accommodated in the tubular sheathing member.

5. The method of claim 4,
Wherein the cut-away portion of the inner tubular sheathing member is disposed adjacent to one side of the woven cable located outside the bend when the woven cable is subjected to repeated U-shaped bending.

6. The method of claim 5,
Wherein the cut-away portion of the outer tubular sheathing member comprises a movable portion wiring flat cable (1) disposed adjacent to the other surface (the other surface) of the woven cable located inside the bent portion when the woven cable is subjected to repeated U- .

The method according to claim 5 or 6,
Further comprising a wear-resistant sheet inserted between one side of the woven-fabric cable and the inner tubular sheathing member.

8. The method according to any one of claims 1 to 7,
Wherein the woven-type cable has a plurality of laminated layers.

9. The method of claim 8,
And a wear-resistant sheet interposed between the plurality of woven-fabric cables.

10. The method according to any one of claims 1 to 9,
Wherein the electric wire flow includes an outermost layer (outermost layer) formed of a fluororesin (fluorine resin).

11. The method according to any one of claims 1 to 10,
The fiber yarn is formed of a fluororesin.

The method according to any one of claims 1 to 11,
Wherein the tubular cover member is formed of a fluorine resin or a fluorine rubber.

10. A method according to any one of claims 3, 7 or 9,
The wear resistant sheet is made of a fluororesin.