JP2508629Y2 - Cable damage detector - Google Patents
Cable damage detectorInfo
- Publication number
- JP2508629Y2 JP2508629Y2 JP1990042674U JP4267490U JP2508629Y2 JP 2508629 Y2 JP2508629 Y2 JP 2508629Y2 JP 1990042674 U JP1990042674 U JP 1990042674U JP 4267490 U JP4267490 U JP 4267490U JP 2508629 Y2 JP2508629 Y2 JP 2508629Y2
- Authority
- JP
- Japan
- Prior art keywords
- cable
- sheath
- holding tube
- detection
- cable holding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Insulated Conductors (AREA)
Description
【考案の詳細な説明】 ［産業上の利用分野］ 本考案は産業用ロボットなどに使用される給電用およ
び信号用のケーブルをケーブル保持管に挿通させる場合
のケーブルの摩耗損傷を検出するようにした装置に関す
る。[Detailed Description of the Invention] [Industrial field of application] The present invention is designed to detect wear and damage of a cable when a cable for power supply and a signal used for an industrial robot or the like is inserted into a cable holding tube. Related to the device.
［従来の技術］ 産業用ロボットにおける旋回アームやハンドの移動の
ように、急速に揺動させる可動部に接続されるケーブル
は、第３図にロボットの例を示すように、ロボットの基
台11に回動可能に取り付けたアーム12や、その先端に設
けたハンド13にそれぞれ接続されているが、ケーブル10
が可動部の動作に追従し、かつ可動部の動作を阻害しな
いようにするため、ケーブル外周のシースは可撓性のも
のが使用されており、ロボットの急速な移動操作に追従
するときの振れを小さくするため、コイルバネ状に形成
し、ケーブルを挿通するケーブル保持管14を設けてい
る。[Prior Art] A cable connected to a movable part that rapidly swings like the movement of a swivel arm or a hand in an industrial robot is a robot base 11 as shown in the example of the robot in FIG. It is connected to the arm 12 rotatably attached to the
The flexible outer sheath of the cable is used in order to prevent the robot from following the movement of the moving part and not hindering the movement of the moving part. In order to reduce the size of the cable, a cable holding tube 14 which is formed in a coil spring shape and through which a cable is inserted is provided.
一般にケーブルの外被損傷を検出するため、ケーブル
内に検出線を設けたケーブルは、たとえば特公昭63−49
326号などに示されているように、がい装ケーブルのが
い装線に混入して検出線を設けるとともにケーブル内に
リード線をそなえ、検出線の摩耗切断による抵抗値変化
を監視するようにしている。In general, a cable provided with a detection line in order to detect the damage to the outer jacket of the cable is disclosed in, for example, Japanese Patent Publication No. 63-49.
As shown in No. 326, etc., the detection wire is mixed with the insulation wire of the insulation cable to provide the detection wire, and the lead wire is provided in the cable to monitor the change in resistance value due to the cutting disconnection of the detection wire. There is.
また、実開昭63−150427号には、ケーブルシースの外
側に、半導電層と金属材料を組み合わせた層を設け、こ
の金属材料（金属編組線）とシース内側の編組遮蔽との
間でメガー試験器等によるシース絶縁抵抗測定を可能に
し、外傷の検知を可能にした移動用動ケーブルが示され
ている。Also, in Japanese Utility Model Laid-Open No. 63-150427, a layer in which a semiconductive layer and a metal material are combined is provided outside the cable sheath, and a megger is provided between the metal material (metal braid wire) and the braid shield inside the sheath. A moving cable for movement that enables measurement of sheath insulation resistance with a tester or the like and detection of external damage is shown.
［考案が解決しようとする課題］ しかし、これらはいずれもケーブル自体の構成によっ
て抵抗変化を検出しているが、ケーブル外被のシースを
可撓性にし、コイルバネ状のケーブル保持管に挿通した
ものでは、可動部の動きが急速かつ頻繁に行われると、
揺動時にケーブルが屈曲するたびにケーブル保持管がシ
ース外面に接触し、摩擦によってシースを摩耗させ、内
部の絶縁電線の絶縁破壊を生じるおそれがあり、シース
の摩耗損傷を検出する必要がある。とくにガス雰囲気内
で使用される場合には大事故を誘発する危険性がある。
また、このような事故を防止するため、従来のようにケ
ーブルの損傷を検出線の切断で検出する場合は、検出線
が摩擦で切断されるまでに時間がかかり検出が遅れる欠
点がある。[Problems to be solved by the invention] However, in all of these, resistance change is detected by the configuration of the cable itself, but the sheath of the cable sheath is made flexible and is inserted into the coil spring-shaped cable holding tube. Then, when the movement of the movable part is performed rapidly and frequently,
Each time the cable bends during rocking, the cable holding tube comes into contact with the outer surface of the sheath, and the friction may abrade the sheath, which may cause insulation breakdown of the insulated wire inside, and it is necessary to detect wear damage to the sheath. Especially, when used in a gas atmosphere, there is a risk of causing a serious accident.
Further, in order to prevent such an accident, when conventionally detecting the damage of the cable by cutting the detection line, there is a drawback that it takes time until the detection line is cut by friction, and the detection is delayed.
［課題を解決するための手段］ 本考案はこの点にかんがみ、複数の絶縁電線を埋め込
んだ介在物の外周に可撓性のシースをそなえ、コイルバ
ネ状の導電線からなるケーブル保持管に挿通保持させる
ケーブルにおいて、前記ケーブルのシースの内側に介在
物を囲む導電性の検出導体を全長にわたって設け、前記
ケーブル端から導出した検出導体とケーブル保持管との
間に接続した検出器とをそなえ、シースの摩耗によるケ
ーブル保持管と検出導体の接触により検出器の電気回路
を閉成するようにしている。[Means for Solving the Problems] In view of this point, the present invention has a flexible sheath on the outer periphery of an inclusion in which a plurality of insulated wires are embedded, and is inserted and held in a cable holding tube made of a coil spring-like conductive wire. In the cable to be made, a conductive detection conductor that surrounds inclusions is provided inside the sheath of the cable over the entire length, and the detection conductor led out from the cable end and a detector connected between the cable holding tube and the sheath are provided. The electric circuit of the detector is closed by the contact between the cable holding tube and the detection conductor due to wear of the detector.
［作用］ このため、ケーブルの振れにより、ケーブルとケーブ
ル保持管とが摺触し、摩擦によってケーブルのシースが
摩耗すると、シースに生じた孔により、ケーブル保持管
を構成する導電線がシース内側の検出導体と接触して電
気回路を閉成させ、検出器が動作してシースの損傷を検
知させる。[Effect] Therefore, when the cable and the cable holding tube are in sliding contact with each other due to the deflection of the cable and the sheath of the cable is worn by friction, the holes formed in the sheath cause the conductive wire forming the cable holding tube to move inside the sheath. Contacting the sensing conductors closes the electrical circuit and the detector operates to detect sheath damage.
［実施例］ 第１図は本考案のケーブルとケーブル保持管および検
出回路の実施例を示すもので、ケーブルの上半部は側断
面図、下半部は切り欠ぎ図で示している。10はケーブ
ル、１はケーブル10内に収納されたロボット操作用の絶
縁電線、２は複数の絶縁電線相互間に詰め込んだ絶縁性
の介在物、３は介在物の外周を囲んで螺旋状に巻回した
検出導体で、外側面に銅粉などの導電性被覆をしたテー
プで構成してある。４は検出導体３を覆う可撓性のシー
スでポリウレタンゴムで構成されている。５は電源、６
は検出器、14はケーブル保持管である。[Embodiment] FIG. 1 shows an embodiment of a cable, a cable holding tube and a detection circuit according to the present invention. The upper half of the cable is shown in a side sectional view and the lower half is shown in a cutaway view. Reference numeral 10 is a cable, 1 is an insulated wire for operating a robot stored in the cable 2, 2 is an insulating inclusion packed between a plurality of insulated wires, and 3 is a spiral winding surrounding the outer circumference of the inclusion. The rotating detection conductor is composed of a tape with an outer surface coated with a conductive material such as copper powder. A flexible sheath 4 covers the detection conductor 3 and is made of polyurethane rubber. 5 is a power source, 6
Is a detector, and 14 is a cable holding tube.
ケーブル10がアーム12やハンド13の移動に追従して振
れると、ケーブルを囲むケーブル保持管14と摺触しシー
ス４を摩耗させる。この摩耗によって第１図に示すよう
にシース４に孔Ａを生じると、ケーブル10が振れたとき
に振れ方向側のケーブル保持管14が検出導体３と接触
し、電源５からアースを通して電気回路が閉成され検出
器６たとえば表示灯を動作させる。このため、シース４
に小さな孔を生じた時点で検出器６によりケーブル10の
損傷を検知する。When the cable 10 swings following the movement of the arm 12 and the hand 13, the cable 10 slides against the cable holding tube 14 surrounding the cable and wears the sheath 4. If a hole A is formed in the sheath 4 as shown in FIG. 1 due to this abrasion, the cable holding tube 14 on the shake direction side comes into contact with the detection conductor 3 when the cable 10 shakes, and an electric circuit is formed from the power source 5 through the ground. It is closed and the detector 6 such as an indicator lamp is operated. Therefore, the sheath 4
The damage of the cable 10 is detected by the detector 6 at the time when a small hole is formed in the.
なお、検出導体３は図に示したテープ状のものに限ら
ず、裸導線を巻回し、あるいは編組状または箔状の導電
体で構成することができる。The detection conductor 3 is not limited to the tape-shaped one shown in the figure, but may be formed by winding a bare conductor, or a braided or foil-shaped conductor.
［考案の効果］ このように本考案は、複数の絶縁電線を埋め込んだ介
在物の外周に可撓性のシースをそなえ、コイルバネ状の
導電線からなるケーブル保持管に挿通保持させるケーブ
ルにおいて、前記ケーブルのシースの内側に介在物を囲
む導電性の検出導体を全長にわたって設け、前記ケーブ
ル端から導出した検出導体とケーブル保持管との間に接
続した検出器とをそなえているから、ケーブルの可撓性
を損なうことなく、移動操作を円滑に保持させることが
でき、ケーブルの損傷をケーブル保持管を介して電気回
路を閉成することにより検出しており、ケーブルの振れ
によって損傷部の検出導体とケーブル保持管との接触状
態が確実に行われ、検出精度が良好で、シースの損傷を
早期に検知することができ、検出装置も簡単にすること
ができるなどの効果がある。[Effects of the Invention] As described above, the present invention relates to a cable having a flexible sheath on the outer periphery of an inclusion in which a plurality of insulated electric wires are embedded and inserted and held in a cable holding tube made of a coil spring-shaped conductive wire. A conductive detection conductor that surrounds inclusions is provided over the entire length inside the sheath of the cable, and the detection conductor led out from the cable end and the detector connected between the cable holding tube are provided, so that the cable The movement operation can be held smoothly without impairing the flexibility, and cable damage is detected by closing the electric circuit via the cable holding tube. The contact between the cable and the cable holding tube is ensured, the detection accuracy is good, the damage to the sheath can be detected early, and the detection device can be simplified. It has the effect of being able to.
第１図は本考案の実施例におけるケーブルとケーブル保
持管の側断面図および検出回路図、第２図は第１図のII
−II線に沿う断面図、第３図は産業用ロボットの例を示
す側面図である。 １は絶縁電線、２は介在物、３は検出導体、４はシー
ス、５は電源、６は検出器、10はケーブル、11は基台、
12はアーム、13はハンド、14はケーブル保持管である。FIG. 1 is a side sectional view and a detection circuit diagram of a cable and a cable holding tube in an embodiment of the present invention, and FIG. 2 is II of FIG.
FIG. 3 is a side view showing an example of an industrial robot, which is a sectional view taken along line II. 1 is an insulated wire, 2 is an inclusion, 3 is a detection conductor, 4 is a sheath, 5 is a power supply, 6 is a detector, 10 is a cable, 11 is a base,
12 is an arm, 13 is a hand, and 14 is a cable holding tube.
Claims (1)
に可撓性のシースをそなえ、コイルバネ状の導電線から
なるケーブル保持管に挿通保持させるケーブルにおい
て、前記ケーブルのシースの内側に介在物を囲む導電性
の検出導体を全長にわたって設け、前記ケーブル端から
導出した検出導体とケーブル保持管との間に接続した検
出器とをそなえたケーブル損傷検出装置。1. A cable in which a flexible sheath is provided on the outer periphery of an inclusion in which a plurality of insulated electric wires are embedded, and which is inserted and held in a cable holding tube formed of a coil spring-shaped conductive wire, the interposition being inside the sheath of the cable. A cable damage detection device comprising a conductive detection conductor surrounding an object over the entire length, and a detector connected between the detection conductor led out from the cable end and the cable holding tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990042674U JP2508629Y2 (en) | 1990-04-20 | 1990-04-20 | Cable damage detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990042674U JP2508629Y2 (en) | 1990-04-20 | 1990-04-20 | Cable damage detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH042420U JPH042420U (en) | 1992-01-10 |
| JP2508629Y2 true JP2508629Y2 (en) | 1996-08-28 |
Family
ID=31554423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990042674U Expired - Fee Related JP2508629Y2 (en) | 1990-04-20 | 1990-04-20 | Cable damage detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2508629Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5273992U (en) * | 1975-12-01 | 1977-06-02 | ||
| FR3083729B1 (en) * | 2018-07-13 | 2020-07-10 | Fogale Nanotech | APPARATUS PROVIDED WITH CAPACITIVE DETECTION AND ELECTRICAL LINE (S) IN THE DETECTION AREA |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS608338A (en) * | 1983-06-29 | 1985-01-17 | Nippon Seikou Kk | Flame-retardant composition |
| JPS6234710U (en) * | 1985-08-21 | 1987-02-28 | ||
| JPS63150427U (en) * | 1987-03-24 | 1988-10-04 |
-
1990
- 1990-04-20 JP JP1990042674U patent/JP2508629Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH042420U (en) | 1992-01-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |