JPH0141874B2 - - Google Patents

Info

Publication number
JPH0141874B2
JPH0141874B2 JP55189278A JP18927880A JPH0141874B2 JP H0141874 B2 JPH0141874 B2 JP H0141874B2 JP 55189278 A JP55189278 A JP 55189278A JP 18927880 A JP18927880 A JP 18927880A JP H0141874 B2 JPH0141874 B2 JP H0141874B2
Authority
JP
Japan
Prior art keywords
diameter cylindrical
cylindrical part
pipe
flexible cable
large diameter
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
Application number
JP55189278A
Other languages
English (en)
Other versions
JPS57111904A (en
Inventor
Shiro Sakuragi
Kyoshiro Imagawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Horiba Ltd
Original Assignee
Horiba Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Horiba Ltd filed Critical Horiba Ltd
Priority to JP55189278A priority Critical patent/JPS57111904A/ja
Priority to US06/333,184 priority patent/US4396797A/en
Priority to DE3150881A priority patent/DE3150881C2/de
Publication of JPS57111904A publication Critical patent/JPS57111904A/ja
Publication of JPH0141874B2 publication Critical patent/JPH0141874B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G9/00—Installations of electric cables or lines in or on the ground or water
    • H02G9/06—Installations of electric cables or lines in or on the ground or water in underground tubes or conduits; Tubes or conduits therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/14—Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics
    • F16L11/18—Articulated hoses, e.g. composed of a series of rings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439—Auxiliary devices
    • G02B6/4459—Ducts; Conduits; Hollow tubes for air blown fibres
    • G02B6/4461—Articulated
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0462—Tubings, i.e. having a closed section
    • H02G3/0475—Tubings, i.e. having a closed section formed by a succession of articulated units

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Insulated Conductors (AREA)
  • Details Of Indoor Wiring (AREA)

Description

【発明の詳細な説明】 本発明は、気体や液体流通管の外套管或いは信
号伝送線やエネルギー伝送線の被覆管等として好
適なフレキシブルケーブルに関する。
例えばゴム製の気体流通管は可撓性を有してい
るため、管の素材、管の内径、外径比に応じた曲
げ半径で折り曲げることができる。しかし、曲げ
半径が小さくなれば管内通路の断面が楕円形から
偏平状になり気体の流通が阻害される。この為、
ゴム製気体流通管を折曲げる場合は、気体の流通
を損なわない程度の曲げ半径を一応の目安とし、
それ以上の大きな半径で折曲げるようにしなけれ
ばならない。しかして、このような目安は、客観
的に定められるものではなく、使用者の経験と勘
に頼らざるを得ず、誤まつてそれ以上の小さな曲
げ半径で折り曲げてガス漏れ等の事故を招くこと
がしばしばみられる。また同様な事が可撓性を有
する液体流通管等についても起り得る。
本発明は、かかる点に鑑み、可撓性を有する気
体流通管、信号伝送線、エネルギー伝送線等の挿
通体に外套又は被覆することにより、それらの安
全使用が保証される許容曲げ半径以上でのみ使用
できるフレキシブルケーブルを提供するものであ
る。
以下図面に基づき本発明の実施例を説明する。
第１図は本発明の一実施例としてのフレキシブル
ケーブルで、複数のパイプ１…をシリーズに接続
した環節構造をしている。ここに環節構造とは、
昆虫やミミズ等の体の構造に類似したもので多数
の環状の分節からなつているものをいう。そして
図示例の各パイプ１…がここにいう分節に該当す
る。
各パイプ１は、第２図Ａに示すように、一端側
には軸芯まわりに対称的に形成された径大筒状部
１ａを有し、他端側には前記径大筒状部１ａに対
し同心でしかも軸芯まわりに対称的に形成された
径小筒状部１ｂを有しており、前記径大筒状部１
ａの端面から一定深さまでの内径１ｃを、前記径
小筒状部１ｂの外径１ｄより幾分大きく形成して
あり、左右非対称の形状を呈している。そして、
同図Ｂに示すように、径小筒状部１ｂを径大筒状
部１ａ内に挿入して、複数のパイプ１を連接した
とき、前記径大筒状部１ａの内径１ｃと前記径小
筒状部１ｂの外径１ｄとの間に一定の隙間（あそ
び）Ｐが生じるようにしてある。この隙間Ｐが各
パイプ１の屈曲を可能とするもので、隙間量を適
当に選ぶことによりパイプ１を多数接続したフレ
キシブルケーブルの曲げ半径の限界を挿通体の許
容曲げ半径に一致させることができる。
２…は隣接するパイプ１の径大筒状部１ａの端
部間に介装されるゴムリング、３はパイプ１の筒
状体の中心部を挿通する可撓性を有した挿通体で
ある。前記ゴムリング２…は、それのもつ弾性収
縮によつて、フレキシブルケーブル内の挿通体３
を挿入する通路長を、フレキシブルケーブルを曲
げた場合と直線にした場合とで変化量が少なくな
るように作用する。
なお、第２図Ｂに示すフレキシブルケーブルに
収縮性のチユーブ等の外套管を設けてもよい。
第３図は本発明の他の実施例を示すもので、第
２図Ａに示すパイプ１の径大筒状部１ａ及び径大
筒状部１ｂのそれぞれ開口端側に係止部１a′，１
b′を形成してある。この構成においては、図中ａ
点とｂ点との当接により曲げ半径が限定される。
なお、第３図に示す実施例におけるパイプ１は
組付時の便を考慮すれば、合成樹脂材で構成する
ことが望ましい。
以上説明したように、本発明に系るフレキシブ
ルケーブルは径大筒状部の内径と前記径大筒状部
内に挿入される径小筒状部の外径との間の隙間に
より、挿通体の曲げ半径を限定するようにしてい
るから、挿通体の太さ（直径）に拘らず、所定の
曲げ半径を得ることができる。また、パイプは軸
芯まわりに対称的に形成され、しかも該パイプの
径大筒状部と径小筒状部内を挿通体が挿通するよ
うにしているので、あらゆる方向に対して挿弾体
を屈曲させることができ、従つて、気体流通管、
液体流通管、信号伝送線又はエネルギー伝送線等
の挿通体の安全使用を保証することができる。
また、パイプは軸芯まわりに対称的な形状であ
るから、その製作が容易であり、このパイプの連
接時ゴムリングを径大筒状部の端部間に挿入する
だけで、所望のフレキシブルケーブルを得ること
ができるので、その製作が容易かつ安価に行なえ
るという欠点がある。
【図面の簡単な説明】
第１図Ａは本発明の一実施例としてのフレキシ
ブルケーブルを示す図、同図Ｂは前記フレキシブ
ルケーブルの曲つた状態を示す図、第２図Ａは前
記フレキシブルケーブルを構成するパイプの断面
図、同図Ｂは各パイプの接続状態を示す図、第３
図は本発明の他の実施例を示す断面図である。 １……パイプ、１ａ……径大筒状部、１ｂ……
径小筒状部、１ｃ……内径、１ｄ……外径、３…
…挿通体。

Claims (1)

    【特許請求の範囲】
  1. １ 一端側には軸芯まわりに対称的に形成された
    径大筒状部を有し、他端側には前記径大筒状部と
    同心でかつ該径大筒状部の内径より小さい外径を
    有する軸芯まわりに対称的に形成された径小筒状
    部を有するパイプの前記径大筒状部内に前記径小
    筒状部を挿入して複数のパイプを直列接続したも
    のであつて、前記径大筒状部の内径と前記径小筒
    状部の外径との間の隙間により、前記各パイプの
    径大筒状部内及び径小筒状部内を挿通する可撓性
    の挿通体の許容曲げ半径を限定せしめるようにし
    たことを特徴とするフレキシブルケーブル。
JP55189278A 1980-12-27 1980-12-27 Flexible cable Granted JPS57111904A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP55189278A JPS57111904A (en) 1980-12-27 1980-12-27 Flexible cable
US06/333,184 US4396797A (en) 1980-12-27 1981-12-21 Flexible cable
DE3150881A DE3150881C2 (de) 1980-12-27 1981-12-22 Gliederrohr

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55189278A JPS57111904A (en) 1980-12-27 1980-12-27 Flexible cable

Publications (2)

Publication Number Publication Date
JPS57111904A JPS57111904A (en) 1982-07-12
JPH0141874B2 true JPH0141874B2 (ja) 1989-09-07

Family

ID=16238633

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55189278A Granted JPS57111904A (en) 1980-12-27 1980-12-27 Flexible cable

Country Status (3)

Country Link
US (1) US4396797A (ja)
JP (1) JPS57111904A (ja)
DE (1) DE3150881C2 (ja)

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US4396797A (en) 1983-08-02
DE3150881C2 (de) 1986-09-25
JPS57111904A (en) 1982-07-12
DE3150881A1 (de) 1982-07-08

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