JPS6057201A - Linear type displacement detecting device - Google Patents
Linear type displacement detecting deviceInfo
- Publication number
- JPS6057201A JPS6057201A JP16632283A JP16632283A JPS6057201A JP S6057201 A JPS6057201 A JP S6057201A JP 16632283 A JP16632283 A JP 16632283A JP 16632283 A JP16632283 A JP 16632283A JP S6057201 A JPS6057201 A JP S6057201A
- Authority
- JP
- Japan
- Prior art keywords
- connector
- cable
- cylindrical member
- slider
- cylindrical
- 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.)
- Granted
Links
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Connector Housings Or Holding Contact Members (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は直線型変位検出装置に係り、特に、長細ケー
ス内に長手方向に取付けられたメインスケールと、該長
細ケース内で、前記メインスケールと対向し、かつ、こ
れに沿って長細ケース長手方向に相対移動可能に配置さ
れたインデックススケールと、前記長細ケースの外側に
配置され、前記インデックススケールと一体的に該長細
ケースに沿って長手方向に相対移動可能に配置されたス
ライダと、を有してなり、前記メインスケールとインデ
ックススケールとの相対移動にもとづく物理量゛の変化
を、前記スライダに収容された電気回路で、測長電気信
号に変換して、可撓性ケーブルを介して外部機器へ出力
するようにされた直線型変位検出装置の改良に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a linear displacement detection device, and more particularly, a main scale installed in a longitudinal direction within an elongated case, a main scale that faces the main scale within the elongated case, and , an index scale disposed so as to be relatively movable in the longitudinal direction of the elongated case along the elongated case; and an index scale disposed outside the elongated case integrally with the index scale relative to the elongated case in the longitudinal direction. a slider arranged movably, and converts a change in physical quantity based on relative movement between the main scale and the index scale into a length measurement electric signal by an electric circuit housed in the slider. The present invention relates to an improvement of a linear displacement detection device configured to output to an external device via a flexible cable.
２個の対象物の相対的な位置を測定したり、或いは、調
整したりするだめの直線型変位検出装置の一つとして、
例えば、第１図および第２図に示されるように、長細ケ
ース１０内に長手方面に取付けられたメインスケール１
２と、該長細ケース１０内で、前記メインスケール１２
と対向し、がっ、これに沿って長細ケース１０長手方向
に相対移動可能に配置されたインデックススケール１４
と、前記長細ケース１０の外側に配置され、前記インデ
ックススケール１４と一体的に該長細ケース１０に沿っ
て長手方向に相対移動可能に配置されたスライダ１６と
、を有してなり、前記メインスケール１２とインデック
ススケール１４との相対移動にもとづく物理量の変化を
、前記スライダ１６に収容された電気回路１８で、測長
電気信号に変換して、可撓性ケーブル２０を介して外部
機器（図示省略）へ出力するようにすれたものがある。As one of the linear displacement detection devices used to measure or adjust the relative position of two objects,
For example, as shown in FIGS. 1 and 2, a main scale 1 is installed longitudinally inside an elongated case 10.
2, and the main scale 12 within the elongated case 10.
An index scale 14 is disposed so as to be relatively movable in the longitudinal direction of the elongated case 10, facing and along the elongated case 10.
and a slider 16 disposed outside the elongated case 10 and integrally with the index scale 14 so as to be relatively movable in the longitudinal direction along the elongated case 10. Changes in physical quantities based on the relative movement between the main scale 12 and the index scale 14 are converted into length measurement electrical signals by the electric circuit 18 housed in the slider 16, and transmitted to an external device ( (not shown).
前記メインスケール１２及びインデックススケール１４
は、共にガラス専の透明材料よりなり、その対向づる表
面に光学格子よりなる縦縞状のメモリ１２ＡＪ５よび１
４Ａがそれぞれ形成され、発光素子２２からの光がこれ
らメインスケール１２およびインデックススケール１４
を透過して、反対側の受光素子２４に到達づる時、前記
メモリ１２Ａ、１４．Ａ間で明暗の縞模様が発生し、こ
の縞模様を受光索子２４で読取って被測定物の移動門を
読取ることができるようにされている。The main scale 12 and the index scale 14
are both made of a transparent material made of glass, and have vertical striped memories 12AJ5 and 1 made of optical gratings on their opposing surfaces.
4A are formed respectively, and the light from the light emitting element 22 is directed to the main scale 12 and the index scale 14.
When reaching the light receiving element 24 on the opposite side, the memories 12A, 14 . A bright and dark striped pattern is generated between A and A, and by reading this striped pattern with the light receiving probe 24, it is possible to read the moving gate of the object to be measured.
前記受光素子２４によって受光された明暗は、電気信号
に変換されて電気回路１８および可撓性ケーブル２０を
経て外部機器に出力されて、ここで、記録或いは表示が
なされるようになっている。The brightness and darkness received by the light-receiving element 24 is converted into an electric signal and output to an external device via the electric circuit 18 and the flexible cable 20, where it is recorded or displayed.
図の符号２６はインデックススケール１４をメインスク
ール１２に弾力的に押圧づるための線ばね、２８はイン
デックススケール１４を、メインスケール１２の表面に
沿って私設ガイドするためのローラ、３０は受光素子２
４の出力信号を電気回路１８に送るためのケーブルをそ
れぞれ示づ。Reference numeral 26 in the figure is a wire spring for elastically pressing the index scale 14 against the main scale 12, 28 is a roller for privately guiding the index scale 14 along the surface of the main scale 12, and 30 is the light receiving element 2.
The cables for sending the output signals of 4 to the electrical circuit 18 are shown, respectively.
ここで、前記インデクススケール１４とスライダ１６は
、長細ケース１０から突出づる腕部３２を介して連結さ
れている。Here, the index scale 14 and the slider 16 are connected via an arm portion 32 that protrudes from the elongated case 10.
この腕部３２は、メインスケール１２に対するインデッ
クススケール１４およびスライダ１６の４１］対移動時
に、長細ケース１０の図において下部に形成された長手
方向の溝１０Ａをその長手方向に沿って移動（るもので
あり、この際、外部から油、埃等の浸入を防止するため
に、腕部３２は溝１０Ａの両側に配置された一対のシー
ル部材３４Ａ、３４Ｂと摺接し、これを押し開くように
して移動されるようになっている。When the index scale 14 and slider 16 move relative to the main scale 12, the arm portion 32 moves along the longitudinal direction of the longitudinal groove 10A formed at the bottom of the elongated case 10 in the drawing. At this time, in order to prevent oil, dust, etc. from entering from the outside, the arm portion 32 comes into sliding contact with a pair of seal members 34A and 34B arranged on both sides of the groove 10A, and is pushed open. It is designed to be moved.
このようにシール部材３４Ａ、３４．８によって細長ケ
ース１０内は外部から遮断され、該長細ケース１０内に
油、埃等が侵入しないようにされているが、従来、前記
スライダ１６内に油、水等が浸入して、電気回路１８部
分に付着し、誤信号を発生させる等の悪影響をおよぼり
ことがあった。As described above, the inside of the elongated case 10 is isolated from the outside by the seal members 34A and 34.8, and oil, dust, etc. are prevented from entering into the elongated case 10. , water, etc. may enter and adhere to the electrical circuit 18, causing adverse effects such as generating erroneous signals.
これは、スライダ１６内に、可撓性ケーブル２０の外皮
を楢成するメツシュ或いはスパイラルチューブ等からな
る可撓電線管を伝わってスライダ１６内に浸入づるもの
であることが分った。It has been found that this is caused by infiltration into the slider 16 through a flexible conduit made of a mesh or a spiral tube that covers the outer sheath of the flexible cable 20.
また、待に、スケールが長大であって１．これに応じて
、スライダ１６の移動範囲および可視性ケーブル２０の
長さが大きくなると、該可撓性ケーブル２０周囲を伝わ
ってスライダ１６内に油等が浸入し易くなるという問題
点がある。Also, the scale is long and 1. Correspondingly, when the movement range of the slider 16 and the length of the visibility cable 20 become larger, there is a problem in that oil or the like tends to penetrate into the slider 16 through the periphery of the flexible cable 20.
これに対して、従来は、前記スライダ１６から賠れた位
置に接続箱を設け、この接続箱および前記スライダ１６
１ｉ！］の中継可視性つ°−フルの両端を強固にシール
接着して、更に、該接続箱と測定数器との間を接続づる
可撓性ケーブルの端部と接続箱をもシール接着して、接
続するようにしたものがある。On the other hand, conventionally, a connection box is provided at a position apart from the slider 16, and this connection box and the slider 16
1i! ] The ends of the relay visibility cable are firmly sealed and bonded, and the end of the flexible cable that connects the junction box and the measuring device is also sealed and bonded to the junction box. , there is something I tried to connect.
しかしながら、この場合は、スライダ１６を接続箱間の
中継ケーブルおよび接続箱と外部（幾器との間のケーブ
ルをそれぞれ、損傷防止のためにワイＡ７ブレード或い
はいわゆるメタルフレキ（」ンジットケーブル）と称さ
れる金属製の可撓電線管で被覆されるが、これらの端部
が前記スライダ１６および接続箱に接着またはハンダ付
けで固定され、また、中継ケーブルおよび可撓性ケーブ
ルも同様にハンダ付けで固定されているために、例えば
、メインスケール１２の長さを変える場合等にＪ３ける
可撓性ケーブルの交換が非常に困（惟であるという問題
点が生じる。まｌζ、測定時にｄ３いて、スライダ１６
の往復動に際して接続箱の重垣増人による慣性増大によ
って、負荷が大ぎくなり、更にまた、接続箱が本体側の
長細ケース１０等と衝突ヅることを防止づるためにスラ
イダ１Ｇとともに移動し、かつ長細ケース１ｏ側と別部
材に支持固定しな（プればならず、容積、重役および取
付は作業、シール作業を必要とするという問題点かあつ
〕こ 。However, in this case, the slider 16 is connected to the relay cable between the connection boxes and the cable between the connection box and the outside (devices) with wire A7 braid or so-called metal flexible cables to prevent damage. The ends of these conduits are fixed to the slider 16 and the connection box by gluing or soldering, and the relay cable and flexible cable are also covered by soldering. For example, when changing the length of the main scale 12, it is extremely difficult to replace the flexible cable at J3. , slider 16
During the reciprocating movement of the connection box, the load increases due to the increase in inertia caused by Masuto Shigegaki, and furthermore, in order to prevent the connection box from colliding with the elongated case 10 on the main body side, the slider 1G moves together with the connection box. However, it has to be supported and fixed to a separate member from the elongated case 1o side, and the problem is that it requires work for volume, mounting, and sealing work.
この発明は上記従来の問題点に鑑みてなされたものであ
って、接続袷等の他の部材を設けることなく、かつ、長
細ケース等の本体側と干渉することなく、スライダ内へ
の油等の浸入を確実に阻止し、しかも、可撓性ケーブル
の交換をも容易とした直線型変位検出装置を提供するこ
とを目的とする。This invention was made in view of the above-mentioned conventional problems, and it is possible to prevent oil from entering the slider without providing other members such as a connecting sleeve and without interfering with the main body side such as an elongated case. It is an object of the present invention to provide a linear displacement detection device that reliably prevents the intrusion of cables, etc., and also facilitates the replacement of flexible cables.
また、この発明は、小型軽量であって、測定時における
検出装置の負荷が少ない＠線型変位検出装置を提供する
ことを目的とづる。Another object of the present invention is to provide a @linear displacement detection device that is small and lightweight, and reduces the load on the detection device during measurement.
更にまた、この発明は、ハンダ付は等の作業を必要とす
ることなく、金属性の可撓電線管を介して容易に電気的
にシールドできるようにした直線型変位検出装置を提供
づることを目的とづる。Furthermore, it is an object of the present invention to provide a linear displacement detection device that can be easily electrically shielded via a metallic flexible conduit without requiring any work such as soldering. Zuru.
また、この発明は、可撓筒ｌ１４Ｈのスライダへの接着
或いはハンダづけ部分の除去作業を要することなく、簡
単かつ確実に可撓性ケーブルの着脱を舊ることができる
ようにした直線型変位検出装置を提供することを目的と
する。Furthermore, the present invention provides a linear displacement detection system that allows the flexible cable to be easily and reliably attached and detached without the need for adhesion to the slider of the flexible tube 14H or removal of the soldered portion. The purpose is to provide equipment.
この発明は、長細ケース内に長手方向に取付けられたメ
インスケールと、該長細ケース内で、前記メインスケー
ルと対向し、かつ、これに沿って長細ケース長手方向に
相対移動可能に配置されたインデックススケールと、前
記長細ケースの外側に配置され、前記インデックススケ
ールと一体的に該長細ケースに沿って長手方向に相対移
動可能に配＠されたスライダと、を有してなり、前記メ
インスケールとインデックススケールとの相対移動にも
とづく物理量の変化を、前記スライダに収容された電気
回路で、副長電気１８号に変換し又、可撓性ケーブルを
介して外部機器へ出力するようにされた直線型変位検出
装置において、前記スライダを、電気配線用開孔を除き
密封Ｉｉ４迄とするとともに；前記電気配線用開孔を介
して創記スライダ内の電気回路に接続された一方電械接
点を籠えた第１コネクタと；前記スライダと一体的に形
成され、かつ、前記第１コネクタを、その接続側端部を
露出して内包支持するとともに、外周に′ｔ４１ねじ部
が形成された第１円筒部材と：前記第１コネクタに嵌合
自在とされるとともに前記ケーブルに接続された他方電
気接点を備える第２コネクタと；前記ケーブルの端部お
よびこれに接続される第２コネクタを、該＠２コネクタ
の接続側端部を除き内包支持し、該第２′−コネクタの
前記第１コネクタへの嵌合状態で、端面が前記第１円筒
部材の端面に突合わされるとともに、前記ケーブル側端
部近傍外周に形成さ、れた前記第１ねじ部より小径の第
２ねじ部、前記第２］ネクタ側端部近傍外周に形成され
た前記第２ねじ部よりも大径かつ＠１ねじ部より小径の
外側段部、内周に形成され、内包される前記第２コネク
タの最大外径よりも小径であつ゛（、該第２シネクタの
前記ケーブル方向への移動を規制する第１内段部、を備
えた第２円筒部（Ａと：該第２内筒部材の外側に嵌装さ
れ、前記ケーブル側端部内周が、前記第２ねじ部を通過
可能、かつ、前記外側段部よりも小径であって、該外側
段部に当接することにより前記第２コネクタ側端部方向
への抜（プ止めを構成づる第２内側段部、前記第１円筒
部材と第２円筒部材の突合わせ状態で、該第１円筒部材
の第１ねじ部に螺合可能に形成された第３ねじ部、を幅
えた第１締め付は筒体と：嵌合状態の前記第１コネクタ
および第２コネクタの対向する外周端面間に介在される
第１シール部材と；前記第２円筒部祠の前記ケーブル側
の端部位置で該第２円筒部材の内周と該第２円筒部材に
内包される前記ケーブル外周間に介在され両者間をシー
ルする第２シール部材と；前記ケーブル側部材に係合し
て該ケーブルの抜は止めを形成−４る第３内側段部、前
記第２円筒部材の第２ねじ部に螺合する第４ねじ部、を
備え、該第４ねじ部への螺合時に、前記第３内側段部に
より、前記第２シール部材を、前記第２円筒部月内周と
ケーブル外周間に押圧するＭ２締め付は同体と、を設け
ることによ−り上記目的を達成するものである。The present invention includes a main scale installed in a longitudinal direction within an elongated case, and a main scale disposed within the elongated case to face the main scale and to be movable relative to the elongated case in the longitudinal direction. a slider disposed outside the elongated case and integrally with the index scale so as to be relatively movable in the longitudinal direction along the elongated case; A change in the physical quantity based on the relative movement between the main scale and the index scale is converted into a sub-length electric No. 18 by an electric circuit housed in the slider, and is outputted to an external device via a flexible cable. In the linear displacement detection device according to the present invention, the slider is sealed up to Ii4 except for the opening for electrical wiring; a first connector housing a contact; formed integrally with the slider, internally supporting the first connector with its connection side end exposed, and having a 't41 threaded part formed on the outer periphery; a first cylindrical member; a second connector that can be freely fitted into the first connector and is connected to the cable; a second connector that includes an end of the cable and a second connector that is connected to the end of the cable; The @2 connector is internally supported except for the connection side end, and when the 2′-connector is fitted to the first connector, the end face is butted against the end face of the first cylindrical member, and the cable a second threaded portion formed on the outer periphery near the side end and having a smaller diameter than the first threaded portion; an outer step portion having a smaller diameter than the threaded portion; a first step portion that restricts movement of the second connector in the direction of the cable; A second cylindrical part (A: fitted on the outside of the second inner cylindrical member, the inner periphery of the cable side end part being able to pass through the second threaded part, and a second inner step portion having a diameter smaller than that of the first cylindrical member, the second inner step portion forming a pull stop in the direction of the second connector side end by contacting the outer step portion, the first cylindrical member and the second cylindrical member In the abutting state, a third threaded portion formed to be able to be screwed into the first threaded portion of the first cylindrical member is tightened with the cylindrical body: the first connector in the fitted state and a first sealing member interposed between opposing outer circumferential end surfaces of a second connector; an inner circumference of the second cylindrical member and an inner periphery of the second cylindrical member at an end position on the cable side of the second cylindrical part; a second sealing member interposed between the outer periphery of the cable and sealing therebetween; a third inner step portion that engages with the cable side member to form a stop for the cable from being pulled out, and the second cylinder; a fourth threaded part that is threaded into the second threaded part of the member, and when the member is threaded into the fourth threaded part, the third inner step part causes the second sealing member to close to the second cylindrical part. The above object is achieved by providing an M2 tightening unit that presses between the inner circumference and the outer circumference of the cable.
またこの発明は、前記第１締め付は筒体の第２内側段部
内周を、前記第２円筒部材の第４ねじ部と螺合して、軸
方向に通過する捨てねじ部とすることにより上記目的を
達成づるものである。Further, in the present invention, the first tightening is performed by screwing the inner periphery of the second inner stepped portion of the cylindrical body with the fourth threaded portion of the second cylindrical member to form a discarded threaded portion that passes in the axial direction. This is to achieve the above objectives.
またこの発明は、前記第２締め付は筒体の第３内側段部
が係合するケーブル側部材を、前記ケーブルを内包して
これを保護する可撓電線管の端部に設けられた鍔部とづ
−ることにより上記目的を達成づるものである。Further, in the present invention, the second tightening is performed by attaching the cable-side member to which the third inner step portion of the cylindrical body engages to a flange provided at an end of a flexible conduit that encloses and protects the cable. By reading this section, the above objectives are achieved.
またこの発明は、前記第２円筒部材の前記ケーブル側端
面を、前記鍔部と接触し、第２円筒部材と前記可撓電線
菅とを電気的に接続させる接触面とＪることにより上、
記目的を達成するものである。Furthermore, the present invention provides the following features:
The objective is to achieve the following objectives.
またこの発明は、前記Ｍ１」ネクタを、その外周が前記
第１円筒部材の内周に第３のシール部材を介して接触さ
せることにより上記目的を達成するものである。Further, the present invention achieves the above object by bringing the outer periphery of the M1'' connector into contact with the inner periphery of the first cylindrical member via a third sealing member.
またこの発明は、前記第２円筒部材のケーブル側端部内
周を外方に拡開するテーパ孔とするとともに、前記第２
シール部材を、該テーパ孔に嵌装されるテーバ筒状体と
することにより上記目的を達成づるものである。Further, in the present invention, the inner periphery of the cable side end of the second cylindrical member is formed into a tapered hole expanding outward, and the second cylindrical member has a tapered hole that expands outward.
The above object is achieved by making the sealing member a tapered cylindrical body fitted into the tapered hole.
またこの発明は、前記スライダを前記第１円筒部＋Δを
備えた部分がシール部材を介して、本体側部分に着脱自
在の分割型とすることにより上記目的を達成づるもので
ある。Further, the present invention achieves the above object by making the slider a split type in which the portion including the first cylindrical portion +Δ is detachably attached to the main body side portion via a sealing member.
またこの発明は、前記第１および第２締め付は同体の外
形線を、前記スライダの、前記長細ケースから、スライ
ダ移動方向と直角方向に最も離間した外形線よりも、長
細ケース側にあるようにしで上記目的を達成づるもので
ある。Further, in the present invention, the first and second tightening methods move the outline of the same body from the elongated case of the slider to the side of the elongated case, rather than the outer line of the slider that is furthest away from the elongated case in a direction perpendicular to the slider movement direction. The above purpose is achieved in a certain way.
以下本発明の実施例を図面を参照して説明づる。Embodiments of the present invention will be described below with reference to the drawings.
この実施例において、前記第１図および第２図に、１３
ける同一または相当部分には第１図および第２図と同一
の符号を附することにより説明を省略するものとする。In this embodiment, in FIGS. 1 and 2, 13
Identical or equivalent parts will be given the same reference numerals as in FIGS. 1 and 2, and their explanation will be omitted.
この実施例は、第１図および第２図に示されるような、
長細ケース１０内に長手方向に取付けられたメインスケ
ール１２と、該長細ケース１０内（”、前記メインスケ
ール１２と対向し、がっ、これに沿って長細ケース１０
長手方向に相対移動可能に配置されたインデックススケ
ール１４と、前記長細ケース１０の外側に配置され、前
記インデックススケール１４と一体的に該長細ケース１
゜に沿って長手方向に相対移動可能に配置されたスライ
ダ１６と、を有してなり、前記メインスケール１２とイ
ンデックススケール１４との相対移動にもとづく物理量
の変化を、前記スライダ１６に収容された電気回路１８
で、副長電気信号に変換し−Ｃ１可撓性ケーブル２０を
介して外部機器へ出力Ｊるようにされた直線型変位検出
装置において、第３図および第４図に示されるように、
前記スライダ１６を、電気配線用開孔１７を除き密封講
造とづるとともに；前記電気配線用開孔１７を介してＩ
ＩｒＪ記スライスライダ１６内回路１８に接続された一
方電気接点を協えた第１コネクタ３６と；前記スライダ
１６と一体的に形成され、かつ、前記第１シネクタ３６
を、その接続側端部３６Ａを露出して内包支持Ｊるとと
もに、外周に第１ねじ部３８が形成された第１円筒部材
４０と：前記第１」ネクタ３６に嵌合自在とされるとと
もに前記ケーブル２０に接続された他方電気接点を偏え
る第２」ネクタ４２と； ｈ＆記ケーブル２０の端部お
よびこれに接続される第２コネクタ４２を、該第２」ネ
クタの接続側端部４２Ａを除き内包支持し、該第２コネ
クタ４２の前記第１コネクタ３６への嵌合状態で、端面
が前記第１円筒部材４０の端面に突合わされるとともに
、前記ケーブル２０側端部近傍外周に形成された前記第
１ねじ部３８より小径の第２ねじ部４４、前記第２０ネ
クタ４２側端部近傍外周に形成された前記第２ねじ部４
４よりも大径かつ′＠４１ねじ部３８より小径の外側段
部４６、内周に形成され、内包される前記第２コネクタ
４２の最大外径よりも小径であって、該第２」ネクタ４
２の前記ケーブル２０方向への移動を規制御る第１内段
部４８、を備えた第２円局部Ｕ５０と；該第２円筒部月
５０の外側に嵌装され、前記ケーブル２０側端部内周が
、前記第２ねじ部４４を通過可能、かつ、前記外側段部
４６よりも小径であって、該外側段部４６に当接Ｊるこ
とにより前記第２」ネクタ４２側端部方向への抜は止め
を構成覆る第２内側段部５２、前記第１円筒部）ｔＡ
４０と第２円筒部材５０の突合わせ状態で、該第１円筒
部月４０の第１ねじ部３８に螺合用能に形成された第３
ねじ部５４と、を備えた第１締め付は筒体５６と；嵌合
状態の前記第１」ネクタ３６および第２」ネクタ４２の
対向する外周端面間に介在される副−リングからなる第
１シール部拐５８と：前記第２円筒部材５０の前記ケー
ブル２０側の端部位置で該第２円筒部材５０の内周と該
第２円筒部ＶＪ ５０に内包される前記ケーブル２゜外
局間に介在され両亡閤をシールする第２シール部＋Ｊ
６０と；前記ケーブル２０側部材６２に係合し°Ｃ該ケ
ーブル２０の扱は止めを形成づ′る第３内側段部６４、
前記第２円筒部材５０の第２ねじ部４４に螺合づる第４
ねじ部６６、を倫え、該第４ねじ部６６／＼の螺合時に
、前記第３内側段部６４により、前記第２シール部材６
０を、前記第２円筒部材５０内周とケーブル２０外局間
に押圧する第２諦め付（プ筒体６８と、を設けＩＣもの
である。This embodiment is as shown in FIGS. 1 and 2.
A main scale 12 is installed in the longitudinal direction inside the elongated case 10, and the elongated case 10 is mounted inside the elongated case 10 (", facing the main scale 12,
an index scale 14 disposed relatively movably in the longitudinal direction; and an index scale 14 disposed outside the elongated case 10 and integrated with the index scale 14;
and a slider 16 disposed so as to be relatively movable in the longitudinal direction along the axis 12. Electric circuit 18
As shown in FIGS. 3 and 4, in the linear displacement detection device that converts the signal into a sub-length electric signal and outputs it to an external device via the -C1 flexible cable 20,
The slider 16 is sealed except for the aperture 17 for electrical wiring;
a first connector 36 connected to the circuit 18 in the slice slider 16 and having one electrical contact; formed integrally with the slider 16 and the first connector 36;
and a first cylindrical member 40 which exposes its connection side end 36A to support the inner package and has a first threaded portion 38 formed on its outer periphery; a second connector 42 that biases the other electrical contact connected to the cable 20; When the second connector 42 is fitted to the first connector 36, the end face is butted against the end face of the first cylindrical member 40, and is formed on the outer periphery near the end on the side of the cable 20. a second threaded portion 44 having a diameter smaller than that of the first threaded portion 38; and a second threaded portion 4 formed on the outer periphery near the end of the twentieth connector
4 and a smaller diameter than the threaded portion 38; 4
a second circular part U50 that is fitted on the outside of the second cylindrical part 50; The circumference is capable of passing through the second threaded portion 44 and has a smaller diameter than the outer step portion 46, and by contacting the outer step portion 46, it is directed toward the side end of the second connector 42. the second inner step portion 52 that constitutes and covers the removal stop, and the first cylindrical portion) tA
40 and the second cylindrical member 50 butt, a third cylindrical member 40 is formed to be able to be screwed into the first threaded portion 38 of the first cylindrical portion 40.
a first tightening member having a threaded portion 54; and a first tightening member having a cylindrical body 56; 1 seal part 58: the inner periphery of the second cylindrical member 50 at the end position of the second cylindrical member 50 on the cable 20 side and the cable 2° outer part enclosed in the second cylindrical part VJ 50. The second seal part +J that is interposed between and seals the two seals.
60; a third inner step 64 that engages with the cable 20 side member 62 and forms a stop for handling the cable 20;
A fourth screw threadedly engaged with the second threaded portion 44 of the second cylindrical member 50.
When the fourth threaded portion 66/\ is screwed together, the third inner step portion 64 closes the second sealing member 6.
0 between the inner periphery of the second cylindrical member 50 and the outer station of the cable 20.
前記第１締め付は筒体５６の第２内側段部５２の内周は
、ｒ］１）記第２円筒部材５０の第４ねじ部６６と螺合
して、軸方向に通過する捨てねじ部５３とされている。For the first tightening, the inner periphery of the second inner stepped portion 52 of the cylindrical body 56 is a set screw that is threadedly engaged with the fourth threaded portion 66 of the second cylindrical member 50 and passes in the axial direction. Section 53.
また、前記第２締め付は筒体５６の第３丙側段部６４が
係合するケーブル側部材６２は、前記ケーブル２０を内
包してこれを保護する可撓電線管７０の端部に設【ブら
れた鍔部とされている。In addition, the cable side member 62 with which the third C side step 64 of the cylindrical body 56 engages in the second tightening is installed at the end of the flexible conduit 70 that encloses and protects the cable 20. [It is said to be a broken tsuba.
前記第２円筒部材５０の前記ケーブル２０側の端面は、
前記可撓電線管７０の鍔部６２と接触し、第２円筒部材
５０と前記可撓電線管７ Ｃ１とを電気的に接続させる
接触面７２とされている。The end surface of the second cylindrical member 50 on the cable 20 side is
It is a contact surface 72 that contacts the collar portion 62 of the flexible electrical conduit 70 and electrically connects the second cylindrical member 50 and the flexible electrical conduit 7 C1.
また、前記第１」ネクタ３６は、その外周が０１１記第
１円筒ＷＵ４００内周にオーリングからなる第３のシー
ル部材７４を介して接触覆るようにされている。Further, the outer periphery of the first connector 36 contacts and covers the inner periphery of the first cylindrical WU 400 through a third seal member 74 made of an O-ring.
前記第２円筒部材５０のケーブル２０側端部内周は、外
方に拡開するテーパ孔７６とされるとともに、前記第２
シール部（Δ６０は、該テーパ孔７６に嵌装されるテー
バ筒状体とされている。The inner periphery of the end of the second cylindrical member 50 on the cable 20 side is formed into a tapered hole 76 that expands outward, and
The seal portion (Δ60) is a tapered cylindrical body fitted into the tapered hole 76.
即ち、該デーパ筒状体である第２シール部＋４６０は、
可撓電線管７０の端部に形成された鍔部６２により、前
記テーパ孔７６内に押し込まれ、これによって、該テー
バ孔７６内側部分でケーブル２０の外周と第２円筒部材
５０の内周に弾力的に圧着され、両者間をシールするも
のである。That is, the second seal portion +460, which is the tapered cylindrical body, is
The flexible conduit 70 is pushed into the tapered hole 76 by the flange 62 formed at the end thereof, so that the inner portion of the tapered hole 76 contacts the outer periphery of the cable 20 and the inner periphery of the second cylindrical member 50. It is elastically crimped to create a seal between the two.
また、この実施例においては、前記スライダ１６は、前
記第１円筒部材４０を備えた分割部分。Further, in this embodiment, the slider 16 is a divided portion including the first cylindrical member 40.
１６Ａがシール部材７８を介して、本体側部分１６Ｂに
着脱自在の分割型とされている。16A is a split type that can be attached to and detached from the main body side portion 16B via a seal member 78.
前記第１Ｊ５よび第２締め付は同体５６Ｆ３よび６８の
外形線は、前記スライダ１６の、前記長細ケース１０か
ら、スライダ１６移動方向と直角方向に最も離間した外
形線よりも、長細ケース１０側にあるようにされている
。The outlines of the first J5 and the second tightening unit 56F3 and 68 are closer to the elongated case 10 than the outline of the slider 16 that is farthest from the elongated case 10 in the direction perpendicular to the slider 16 movement direction. Being on the side.
即ち、第１および第２締め付は筒体５６．６８の長細ケ
ース１０の長手方向に沿う移動軌跡５６Ａ、６８Ａが、
スライダ１６の図において下端部の移動軌跡１６Ｃより
も長細ケース１０側（内側方向）にあるようにして、ス
ライダ１６の移動詩に、これら第１締め付は筒体５６お
よび第２締め付は筒体６８が他の部分と干渉しないよう
にされている。That is, in the first and second tightening, the movement loci 56A, 68A of the cylindrical body 56.68 along the longitudinal direction of the elongated case 10 are
In the diagram of the slider 16, the first tightening is performed on the cylindrical body 56 and the second tightening is placed on the elongated case 10 side (inward direction) than the movement locus 16C of the lower end. The cylindrical body 68 is prevented from interfering with other parts.
次に上記可視性ケーブル２０をスライダ１６に取付ける
揚台につき説明する。Next, a platform for attaching the visibility cable 20 to the slider 16 will be explained.
まず、予め、第１締め付は筒体５６および第２締め付は
面体６８を可撓性ケーブル２０を内包する可撓電線管７
０にＴ１嵌させておき、つ；１７ｘで、第１締め付は同
体５６をその第２内側段部５２におりるすてねじ部５３
を、前記第２円筒部月５０の端部外周に形成された第３
ねじ部５４に螺合させかつ、この第３ねじ部５４を通過
して第２コネクタ４２側方向に押出す。First, in advance, the first tightening is performed on the cylindrical body 56 and the second tightening is performed on the flexible electrical conduit 7 that encloses the flexible cable 20.
17x, the first tightening is done by inserting the threaded part 53 into the second inner stepped part 52 of the body 56.
A third cylindrical portion formed on the outer periphery of the end of the second cylindrical portion 50
It is screwed into the threaded portion 54 and pushed out toward the side of the second connector 42 through the third threaded portion 54 .
この状態で、前記第２締め付は筒体６８を、その第４ね
じ部６６を、第２円筒部材５０の第２ねじ部４４に螺合
させる。この時、第２締め付は筒体６８の第３内側段部
６４は、可撓電線管７０の鍔部６２と係合してこれをテ
ーバ孔７６方向に押圧する。In this state, the second tightening screws the fourth threaded portion 66 of the cylindrical body 68 into the second threaded portion 44 of the second cylindrical member 50 . At this time, in the second tightening, the third inner step portion 64 of the cylindrical body 68 engages with the collar portion 62 of the flexible electrical conduit 70 and presses it toward the tapered hole 76 .
これによって、該テーパ孔７６に嵌合される第２シール
部材６０は、テーバ孔７６内周と可撓性ケーブル２０の
端部外周との間で強く押圧されて、両者間を強固にシー
ルすることになる。またこの時、金属製の可撓電線管７
０に形成された鍔部６２は、第２円筒部材５０の端部に
形成された接触面７２に押圧され、両者間を電気的に接
続することになる。As a result, the second sealing member 60 fitted into the tapered hole 76 is strongly pressed between the inner periphery of the tapered hole 76 and the outer periphery of the end of the flexible cable 20, thereby firmly sealing the two. It turns out. At this time, the metal flexible conduit 7
The collar portion 62 formed at 0 is pressed against the contact surface 72 formed at the end of the second cylindrical member 50, thereby electrically connecting the two.
次に、第２円筒部月５０の端部に内包された前記第２０
ネクタ４２を第１円筒部ｔ、Ａ４０に内包される第１」
ネクタ３６に嵌合させ、この状態で、前記第１締め付は
筒体５６を、その内側の第３ねじ部５４を、第１円筒部
月４０外周の第１ねじ部３８に螺合させることにより、
螺着させる。Next, the 20th cylinder included in the end of the second cylindrical part 50
The connector 42 is attached to the first cylindrical portion t, the first portion enclosed in A40.
In this state, the first tightening involves screwing the third screw portion 54 on the inside of the cylinder body 56 into the first screw portion 38 on the outer periphery of the first cylindrical portion 40. According to
Screw it on.
この時、第１締め付は筒体５６の第２内側段部５２は、
第２円筒部材５０の外側段部４６に軸方向に係合して、
これを第１円筒部材４０方向に押圧する。At this time, in the first tightening, the second inner step portion 52 of the cylindrical body 56 is
axially engaging the outer step portion 46 of the second cylindrical member 50;
This is pressed in the direction of the first cylindrical member 40.
従って、第１円筒部材４０の端面に対して第２円筒部材
５０の端面が強固に押圧される。Therefore, the end surface of the second cylindrical member 50 is firmly pressed against the end surface of the first cylindrical member 40.
この時、前記第１コネクタ３６および第２コネクタ４２
の対向づる端面間に介在される前記第１シール部４１５
８も軸方向に押圧されて両者間に圧接してこれらをシー
ルすることなる。At this time, the first connector 36 and the second connector 42
the first seal portion 415 interposed between the opposing end faces of the
8 is also pressed in the axial direction to bring them into pressure contact and seal them.
この場合、第１円筒部月４０と第２円筒部月５０との軸
方向相対変位は、両者の突合わせ端面によって規制され
るので、第１シール部材５８の押圧力が過大となること
はない。同様に、第１コネクタ３６の外周と第１円筒部
材４０の内周との間に介在される第３シール部オオ７４
も、両者間をシールし、かつ、その押圧力が過大となる
ことはない。In this case, the relative displacement in the axial direction between the first cylindrical portion 40 and the second cylindrical portion 50 is regulated by the abutting end surfaces of the two, so that the pressing force of the first sealing member 58 does not become excessive. . Similarly, a third seal portion 74 interposed between the outer circumference of the first connector 36 and the inner circumference of the first cylindrical member 40
Also, the space between the two is sealed, and the pressing force is not excessive.
ここで、前記分割型とされたスライダ１Ｇの分割部分１
６Ａは、可撓性ケーブル２０を取付けた後に本体側部分
１６Ｂに取付けるようにしてもよく、また、予め本体側
部分１６Ｂに取付けた状態の分割部分１６Ａに上記のよ
うに可撓性ケーブル２０を取付けるようにしてもよい。Here, the divided portion 1 of the divided slider 1G is
The flexible cable 6A may be attached to the main body side portion 16B after the flexible cable 20 is attached, or the flexible cable 20 may be attached to the split portion 16A that has been previously attached to the main body side portion 16B as described above. It may be installed.
この実施例においては、第１コネクタ３６と第１円筒部
材４０間が第３シール部材７４によって第１コネクタ３
６および第２コネクタ４２間ならびにこれらと第２円筒
部材５０の内周間が第１シール部材５８によって、また
、可撓性ケーブル２０と第２円筒部材５０との間が第２
シール部月６０によつｈで、それぞれシールされている
ので、可撓電線管７０の外周を伝わったり、或いは、前
記第１円筒部月４０、第２円筒部材５０、第１締め付は
筒体５６および第２締め付は筒体６８の外周に付着した
油、水等がスライダ１６内に浸入することが確実に防止
される。In this embodiment, the third seal member 74 seals between the first connector 36 and the first cylindrical member 40.
6 and the second connector 42 and between these and the inner periphery of the second cylindrical member 50 are provided by the first seal member 58, and between the flexible cable 20 and the second cylindrical member 50 is provided by the second seal member 58.
Since they are each sealed by the seal portion 60 at h, the first cylindrical portion 40, the second cylindrical member 50, and the first tightening may be transmitted along the outer periphery of the flexible conduit 70. The body 56 and the second tightening reliably prevent oil, water, etc. attached to the outer periphery of the cylindrical body 68 from penetrating into the slider 16.
しかも、可視性ケーブル２０を、スケールの測長範囲の
変更に応じて取替える場合は、第１締め付（プ筒体ｂ６
を着脱づ゛ることによって、容易に交換することができ
る。Moreover, when replacing the visibility cable 20 in accordance with a change in the length measurement range of the scale, the first tightening (pull cylinder b6
It can be easily replaced by attaching and detaching.
さらに、これら円筒部口および締め付は筒体の長１ケー
ス１０から外方への突出量は、スライダ１６の外形線の
移動軌跡１６Ｃよりも内側にあるために、測定作業中に
おけるスライダ１６の移動曲に、これらが他の部分に衝
突したりすることがない。Furthermore, since the length of the cylindrical opening and the tightening tube protrude outward from the case 10 is inside the movement locus 16C of the outer contour of the slider 16, the slider 16 during measurement work is These do not collide with other parts when moving songs.
これは、特に、第１締め付は筒体５６のづてねじ部５３
を、第２円筒部材５０の第２ねじ部４４と螺合して、か
つこれを通過できるようにＪることによって、該＠１締
め付は筒体５６の外径を最小限としたことによる。This is especially true when the first tightening is performed on the threaded portion 53 of the cylinder body 56.
The @1 tightening is achieved by minimizing the outer diameter of the cylindrical body 56 by screwing it into the second threaded portion 44 of the second cylindrical member 50 and passing through it. .
また、このようにすることによって、第１および第２締
め付は筒体５６および６８は、第１円筒。Moreover, by doing so, the first and second tightening cylinders 56 and 68 are connected to the first cylinder.
部材４０から取り外した状態であっても、第２円筒部材
５０から脱落することはないので、その紛失等を防止づ
ることができる。Even if it is removed from the member 40, it will not fall off from the second cylindrical member 50, so it can be prevented from being lost.
さらに、前記第２円筒部Ｉ４５０の可撓性ケーブル２０
側の端面は、可撓電線管７０の鍔部６２に電気的に接触
される接触面７２とされ、かつ、鍔部７１が第２締め付
は筒体６８によって強固に押付けられるので、シールド
アースを確実に冑ることができる。Furthermore, the flexible cable 20 of the second cylindrical portion I450
The side end face serves as a contact surface 72 that electrically contacts the collar 62 of the flexible conduit 70, and since the collar 71 is firmly pressed by the cylinder 68 during the second tightening, the shield earth You can definitely remove it.
また、この実施例においては、可撓電線管７２をその鍔
部６２を介して、第２１！ｉめ付は筒体６８によつＣ第
２円筒部月５０に強固に締め付【ブ同定し、しかも、着
脱も容易であるので、従来のようにハンダ付は或いはハ
ンダ取り外し等の作業は不要となり、また、第２シール
部月６０によってシールを確実にづることができる。In addition, in this embodiment, the flexible conduit 72 is connected to the 21st! The fitting is firmly tightened to the second cylindrical part 50 by the cylindrical body 68.It is also easy to attach and detach, so there is no need to do work such as soldering or removing solder as in the conventional case. This is no longer necessary, and the seal can be reliably attached by the second seal portion 60.
ここで、前記第１締め付は筒体５６および第２締め付り
筒体６８を市販品である締め付はナツト等を利用するこ
とも考えられるが、この場合は、例えば、すでねじ部５
３等がないために、その外径が大きくなり、スライダ１
６の外形線より心外方に突出してしまうことになる。Here, for the first tightening, it is possible to use a commercially available nut or the like to connect the cylindrical body 56 and the second tightening cylindrical body 68. 5
Since there is no 3rd class, its outer diameter becomes larger and slider 1
This results in protruding outward from the outline of No. 6.
材４０が一体的に形成された分割部分１６Ａとこれが取
付けられる本体側部分１６Ｂとの分割型にしているので
、電気回路１８の取付は或いは第１」ネクタ３６または
可撓性ケーブル２０の取付けに際して、適宜取外し或い
は取付けることによって、その作業性を増大させること
ができる。Since the material 40 is divided into an integrally formed divided portion 16A and a main body side portion 16B to which this is attached, the electrical circuit 18 can be attached, or the first connector 36 or the flexible cable 20 can be attached. , by appropriately removing or attaching it, the workability can be increased.
なお上記実施例は、第１〕ネクタ３６の外周と第１円筒
部材４０の内周との間を第３シール部材７４によってシ
ールするようにしたものであるが、これは、例えば、第
１シール部材５８の位置と、前記第１円筒部（４４０お
よび第２円筒部拐５０の突合わせ端面位置と一致させる
ことによって、該第１シール部材５８が第１および第２
コネクタ３６および４２と第１および第２円筒部材４８
および５０との４者間をシールプるようにすれば、必ず
しも設ける必要はない。In the above embodiment, the third seal member 74 seals between the outer periphery of the first connector 36 and the inner periphery of the first cylindrical member 40. By matching the position of the member 58 with the position of the abutting end surfaces of the first cylindrical part (440 and second cylindrical part 50), the first sealing member 58 is connected to the first and second cylindrical parts.
Connectors 36 and 42 and first and second cylindrical members 48
and 50, it is not necessarily necessary to provide it if the four parties are sealed.
さらに、例えば、第１コネクタ３６のケーシングを、第
１円筒部材４０が兼用するようにずれば、第３シール部
材７４は不要となる。Further, for example, if the casing of the first connector 36 is shifted so that the first cylindrical member 40 also serves as the casing, the third seal member 74 becomes unnecessary.
また、前記第２シール部材６０はテーパ円筒形状とされ
ているが、本発明はこれに限定されるものではなく、他
の形状であってもよい。Further, although the second seal member 60 has a tapered cylindrical shape, the present invention is not limited to this, and may have other shapes.
さらにまた、上記実施例は、可撓電線管７０の鍔部６２
によって第２シール部材６０を押圧するようにしたもの
であるが、これは、可撓性ケーブル２０側部材によって
押圧されるようにしたものであればよい。Furthermore, in the above embodiment, the collar portion 62 of the flexible electrical conduit 70
Although the second seal member 60 is pressed by the second seal member 60, it may be any other member that is pressed by the flexible cable 20 side member.
従って、この場合は、該可撓性ケーブル２０側部材が前
記第２締め付は筒体６８の第３内側部何６４によって押
圧されるように構成づる。Therefore, in this case, the flexible cable 20 side member is configured to be pressed by the third inner part 64 of the cylindrical body 68.
また、上記実施例は、可撓性ケーブル２０を可撓電線色
７０によって覆うようにしているが、この可撓電線管７
０は、図のように、スパイラル形状のものに限定される
ものでなく、例えば、網状のものであってもよい。Further, in the above embodiment, the flexible cable 20 is covered with the flexible wire color 70, but this flexible wire tube 70
0 is not limited to a spiral shape as shown in the figure, but may be, for example, a net shape.
さらにまた、可撓電線管７０は、必ずしも金属製でなく
ても、例えば合成樹脂等からなるものであってもよい。Furthermore, the flexible electrical conduit 70 is not necessarily made of metal, and may be made of, for example, synthetic resin.
この場合は、スライダ１６の電気的シールドアースを確
保づるために、他のシールドアース部材を設ける必要が
ある。In this case, it is necessary to provide another shield earth member to ensure electrical shield earthing of the slider 16.
また、上記実施例は、メインスケール１２およびインデ
ックススケール１４それぞれに光学格子が形成され、こ
れらが相対移動する時にできる明暗を受光索子２４によ
って電気信号に変換するようにしたいわゆる光電型の変
位検出装置に関してのものであるが、本発明はこれに限
定されるものでなく、相対移動するメインスケールおよ
びインデックススケール門の物理量の変化に基づき１法
等を測定できるものであればよく、従って、例えば静電
型、電磁型、接点型、抵抗型等の変位検出装置にも適用
されるものである。Further, in the above embodiment, an optical grating is formed on each of the main scale 12 and the index scale 14, and the brightness and darkness generated when these move relative to each other is converted into an electric signal by the light receiving cable 24. This is a so-called photoelectric displacement detection method. Although the present invention is related to a device, the present invention is not limited to this, and any device that can measure a method based on changes in physical quantities of a main scale and an index scale that move relatively can be used. It is also applicable to electrostatic type, electromagnetic type, contact type, resistance type, etc. displacement detection devices.
本発明は上記のように構成したので、装置容積、重量の
増大を伴なうことなく、確実にスライダ内への油、水等
の浸入を防止することができるとともに、可視性ケーブ
ルの着脱を極めて容易とすることができるという優れた
効果を有する。Since the present invention is configured as described above, it is possible to reliably prevent oil, water, etc. from entering the slider without increasing the volume or weight of the device, and it is possible to easily attach and detach the visibility cable. It has the excellent effect of being extremely easy to use.
本発明者の実験によれば、ディピングテストで、スライ
ダ内への油、水の浸入はなかった。According to the inventor's experiments, no oil or water entered the slider in a dipping test.
第１図は従来の直線型変位検出装置の要部を示ず一部断
面とした正面図、第２図は第１゛図の■−■線に沿う断
面図、第３図は本発明にががる直線型変位検出装置の実
施例の要部を示す断面図、第４図は同実施例の要部の取
外し状態を示す一部断面とした正面図である。
１０・・・長細ケース、１２・・・メインスケール、１
４・・・インデックススケール、１６・・・スライダ、
１６Ａ・・・分割部分、１６Ｂ・・・本体側部分、１８
・・・電気回路、 ２ｏ・・・可撓性ケーブル、３６・
・・第１」ネクタ、
３６Ａ、４２Ａ・・・接続側端部、
３８・・・第１ねじ部、４０・・・第１円筒部拐、４２
・・・第２」ネクタ、 ４４・・・第２ねじ部、４６・
・・外側段部、 ４８・・・第１内段部、５０・・・第
２円筒部材、 ５２・・・第２内側伊部、５３・・・ず
てねじ部、 ５４・・・第３ねじ部、５６・・・第１締
め付は筒体、
５８・・・第１シール部月、６０−・・第２シール部材
、６２・・・ケーブル側部材（鍔部）、
６４・・・第３内側段部、 ６６・・・第４ねじ部、６
８・・・第２締め付は筒体、７０・・・可撓′ＷＬ線管
、７２・・・接触面、 ７４・・・第３シール部材、７
６・・・デーパ孔、 ７８・・・シール部材。
代理人 松 山 圭 １ｈ
〈ほか１名）Fig. 1 is a partially sectional front view of a conventional linear displacement detection device without showing the main parts, Fig. 2 is a sectional view taken along the line ■-■ of Fig. FIG. 4 is a cross-sectional view showing the main parts of an embodiment of the linear displacement detection device, and FIG. 4 is a partially sectional front view showing the main parts of the embodiment in a removed state. 10... Long and thin case, 12... Main scale, 1
4... Index scale, 16... Slider,
16A...Divided part, 16B...Body side part, 18
...Electric circuit, 2o...Flexible cable, 36.
...First" connector, 36A, 42A... Connection side end, 38... First threaded part, 40... First cylindrical part, 42
...Second" connector, 44...Second threaded portion, 46.
...Outer step part, 48...First inner step part, 50...Second cylindrical member, 52...Second inner side part, 53...Threaded part, 54...Third screw Part, 56... First tightening is cylinder body, 58... First seal portion, 60-... Second seal member, 62... Cable side member (flange), 64... Number 3 Inner step part, 66... Fourth screw part, 6
8...Second tightening is cylinder body, 70...Flexible WL wire tube, 72...Contact surface, 74...Third seal member, 7
6... Taper hole, 78... Seal member. Agent Kei Matsuyama 1h (1 other person)
Claims (1)
ケールと、該長細ケース内で、前記メインスケールと対
向し、かつ、これに沿って長細ケース長手方向に相対移
動可能に配置されたインデックススケールと、前記長細
ケースの外側に配置され、前記インデックススケールと
一体的に該長細ケースに）分つて長手方向に相対移動可
能に配置されたスライダと、を有してなり、前記メイン
スケールとインデックススケールとの相対移動にもとつ
く物理量の変化を、前記スライダに収容された電気回路
で、測長電気信号に変換して、可撓性ケーブルを介して
外部様器へ出力するようにされた直線型変位検出装置に
おいて、前記スライダを、電気配線円囲孔を除き密封構
造とするとともに：前記電気配線用開孔を介して前記ス
ライダ内の電気回路に接続された一方電気接点を備えた
第１コネクタと：前記スライダと一体的に形成され、が
つ、前記＠１」ネクタを、その接続側端部を露出して内
包支持するとともに、外周に第１ねじ部が形成された第
１円筒部材と；前記第１コネクタに嵌合自在とされると
ともに前記ケーブルに接続された他方電気接点を備える
第２」ネクタと二前記ケーブルの端部およびこれに接続
される第２コネクタを、該第２０ネクタの接続側端部を
除き内包支持し、該第２コネクタの前記第１コネクタへ
の嵌合状態で、端面が前記第１円筒部材の端面に突合わ
されるとともに、前記ケーブル側端部近傍外周に形成さ
れた前記第１ねじ部より小径の第２ねじ部、市記第２」
ネクタ側端部近傍外周に形成された前記第２ねじ部より
も大径かつ第１ねし部より小径の外側段部、内周に形成
され、内包される前記第２」ネクタの最大外径よりも小
径であって、該第２シネクタの前記ケーブル方向への移
動を規制する第１内段部、を備えた第２円筒部材と；該
第２円筒部拐の外側に嵌装され、前記ケーブル側端部内
周が、前記第２ねじ部を通過可能、かつ、前記外側段部
よりも小径であって、該外側段部に当接することにより
前記第２コネクタ側端部方向への抜（プ止めを構成づる
第２内側段部、前記第１円筒部（Δと第２円筒部材の突
合わせ状態で、該第１円問部拐の第１ねじ部に螺合可能
に形成された′ 第３ねじ部、を備えた第１締め付は筒
体と：嵌合状態の前記第１コネクタおよび第２コネクタ
の対向する外周端面間に介在される第１シール部材と前
記第２円筒部材の前記ケーブル側の端部位置で該第２円
筒部材の内周と該第２円筒部材に内包される前記ケーブ
ル外周間に介在され両者間をシールづる第２シール部材
と：前記ケーブル側部材に係合して該ケーブルの抜は止
めを形成する第３内側段部、前記第２円筒部材の第２ね
じ部に螺合する第４ねじ部、を伽え、該第４ねじ部への
螺合時に、＋ｉ＆記第３内側段部により、前記第２シー
ル部材を、前記第２円筒部拐内周とケーブル外周間に阿
圧する第２締め付は筒体と、を設けたことを特徴とづる
直線型変位検出装置。 （２） １１１記第１締め付は筒体の第２内側段部内周
は１．前記第２円筒部材の第４ねじ部と螺合して、軸方
向に通過する捨てねじ部とされた特許請求の範囲第１項
記載の直線型変位検出装置。 （３）前記第２締め付は筒体の第３内側段部が係合する
ケーブル側部拐は、前記ケーブルを内包してこれを保護
する可撓電線管の端部に設けられた鍔部とされた特許請
求の範囲第１項または第２項記載の直線型変位検出装置
。 （４）前記第２円筒部月の前記ケーブル側端面ば、前記
鍔部と接触し、第２円筒部材と前記可撓電線管とを電気
的に接続させる接触面とされた特許請求の範囲第３項記
載の直線型変位検出装置。 （５）前記第１コネクタは、その外周が前記第１円筒部
材の内周に第３のシール部材を介して接触される特許請
求の範囲第１項ないし第４項のうちいずれかに記載の直
線型変位検出装置。 （６）前記第２円筒部材のケーブル側端部内周は外方に
拡開するテーパ孔とされるとともに、前記第２シール部
材は、該テーパ孔に嵌装されるテーパ筒状体とされた特
許請求の範囲第１項ないし第５項のうちいずれかに記載
の直線型変位検出装置。 （７）前記スライダは前記第１円筒部材を備えた部分が
シール部材を介して、本体側部分に着脱自在の分’ＩＪ
型とされた特許請求の範囲第１項ないし第６項のうらい
ずれかに記載の直線型変位検出装置。 （８）前記第１およびＭ２締め付は筒体の外と線は、前
記スライダの、前記長細ケースから、パライダ移動方向
と直角方向に最も離間した外形線ぷりも、長ｍｌケース
側にあるようにされた特許請求の範囲第１１負ないし第
７項のうちいずれかに記載の直線型変位検出装置。[Scope of Claims] (1) A main scale installed in the longitudinal direction inside the elongated case, and a main scale installed in the elongated case in the longitudinal direction of the elongated case. an index scale disposed so as to be relatively movable; and a slider disposed outside the elongated case and integrally separated from the index scale into the elongated case and disposed so as to be relatively movable in the longitudinal direction. The electric circuit housed in the slider converts changes in physical quantities based on the relative movement of the main scale and index scale into length measurement electric signals, and transmits the signals via a flexible cable. In a linear displacement detection device configured to output to an external device, the slider has a sealed structure except for an electric wiring hole, and the electric circuit in the slider is connected to the electric circuit through the electric wiring hole. A first connector having one electrical contact connected to the other: is formed integrally with the slider, and supports the @1 connector internally with its connection end exposed, and has a first connector on the outer periphery. a first cylindrical member formed with a threaded portion; a second cylindrical member that is capable of fitting into the first connector and is connected to the cable; and a second connector that is connected to the cable; A second connector to be connected is internally supported except for the connection side end of the 20th connector, and when the second connector is fitted to the first connector, the end surface protrudes from the end surface of the first cylindrical member. a second threaded portion smaller in diameter than the first threaded portion formed on the outer periphery near the cable side end;
an outer step portion having a larger diameter than the second threaded portion and a smaller diameter than the first threaded portion formed on the outer periphery near the end on the connector side; and a maximum outer diameter of the second connector formed on the inner periphery and enclosed therein; a second cylindrical member having a diameter smaller than that of the second cylindrical member, the second cylindrical member having a first inner step that restricts movement of the second cylindrical member in the direction of the cable; The inner periphery of the cable side end can pass through the second threaded part and has a smaller diameter than the outer step, and the cable can be pulled out toward the second connector side end by coming into contact with the outer step. a second inner stepped portion constituting a stopper, the first cylindrical portion (Δ) formed so as to be able to be screwed into the first threaded portion of the first circular portion when the second cylindrical member abuts against each other; A first tightening member having a third threaded portion is connected to the cylindrical body: a first sealing member interposed between opposing outer peripheral end surfaces of the first connector and the second connector in the fitted state and the second cylindrical member. a second sealing member interposed between the inner periphery of the second cylindrical member and the outer periphery of the cable enclosed in the second cylindrical member at an end position on the cable side and sealing the gap between the two; a third inner step part that together forms a stop for removing the cable; a fourth threaded part that is threadedly engaged with the second threaded part of the second cylindrical member; and a second tightening cylinder for compressing the second sealing member between the inner periphery of the second cylindrical part and the outer periphery of the cable by means of the third inner step part. Linear displacement detection device. (2) In the first tightening described in 111, the inner periphery of the second inner stepped portion of the cylindrical body is screwed with the fourth threaded portion of the second cylindrical member and passes through in the axial direction. The linear displacement detection device according to claim 1, which is a threaded portion. The linear displacement detection device according to claim 1 or 2, wherein the linear displacement detection device is a flange provided at an end of a flexible conduit that protects the conduit. (4) The second cylindrical portion Linear displacement detection according to claim 3, wherein the cable side end surface of the moon is a contact surface that contacts the collar and electrically connects the second cylindrical member and the flexible conduit. (5) The first connector has an outer periphery that contacts an inner periphery of the first cylindrical member via a third sealing member. The linear displacement detection device according to the above.(6) The inner periphery of the cable side end of the second cylindrical member is a tapered hole that expands outward, and the second seal member is fitted into the tapered hole. A linear displacement detection device according to any one of claims 1 to 5, which is a tapered cylindrical body. (7) The slider has a portion including the first cylindrical member that is detachably attached to the main body side portion via a sealing member.
A linear displacement detection device according to any one of claims 1 to 6. (8) The first and M2 tightening lines are set so that the outer line of the slider that is farthest from the elongated case in the direction perpendicular to the slider movement direction is also on the long ml case side. A linear displacement detection device according to any one of claims 11 to 7.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16632283A JPS6057201A (en) | 1983-09-09 | 1983-09-09 | Linear type displacement detecting device |
| DE3433025A DE3433025C2 (en) | 1983-09-09 | 1984-09-07 | Cable connection device |
| US06/648,247 US4605274A (en) | 1983-09-09 | 1984-09-07 | Cable connecting device |
| GB08422710A GB2146496B (en) | 1983-09-09 | 1984-09-07 | Cable connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16632283A JPS6057201A (en) | 1983-09-09 | 1983-09-09 | Linear type displacement detecting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6057201A true JPS6057201A (en) | 1985-04-03 |
| JPH057831B2 JPH057831B2 (en) | 1993-01-29 |
Family
ID=15829204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16632283A Granted JPS6057201A (en) | 1983-09-09 | 1983-09-09 | Linear type displacement detecting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6057201A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63202002A (en) * | 1987-02-18 | 1988-08-22 | 秩父セメント株式会社 | Humidity sensor |
-
1983
- 1983-09-09 JP JP16632283A patent/JPS6057201A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63202002A (en) * | 1987-02-18 | 1988-08-22 | 秩父セメント株式会社 | Humidity sensor |
| JPH043082B2 (en) * | 1987-02-18 | 1992-01-22 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH057831B2 (en) | 1993-01-29 |
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