JPH0451777U - - Google Patents

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Publication number
JPH0451777U
JPH0451777U JP9292990U JP9292990U JPH0451777U JP H0451777 U JPH0451777 U JP H0451777U JP 9292990 U JP9292990 U JP 9292990U JP 9292990 U JP9292990 U JP 9292990U JP H0451777 U JPH0451777 U JP H0451777U
Authority
JP
Japan
Prior art keywords
metal
electrical contact
insulator
conductor
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
Application number
JP9292990U
Other languages
Japanese (ja)
Other versions
JP2547980Y2 (en
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 filed Critical
Priority to JP1990092929U priority Critical patent/JP2547980Y2/en
Publication of JPH0451777U publication Critical patent/JPH0451777U/ja
Application granted granted Critical
Publication of JP2547980Y2 publication Critical patent/JP2547980Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案による入力短絡型電極ジヤツク
の一実施例を電極プラグとともに示す断面図、第
２図はｐＨ計の入力回路の一例を示す概略回路構
成図、第３図は従来の入力短絡型電極ジヤツクの
一例を電極プラグとともに示す一部分を側面図に
した断面図である。 ３１……円筒形状の絶縁体、３２……円筒形状
の金属導体、３３……金属の棒状体、３４……絶
縁カバー、３６……金属外被、３７……円板形状
絶縁体、３９……コイルスプリング、ＪＧ……ガ
ラス電極ジヤツク、ＰＧ……ガラス電極プラグ。 Fig. 1 is a sectional view showing an embodiment of the input short circuit type electrode jack according to the present invention together with an electrode plug, Fig. 2 is a schematic circuit diagram showing an example of the input circuit of a pH meter, and Fig. 3 is a conventional input short circuit diagram. FIG. 2 is a partially sectional side view showing an example of a type electrode jack together with an electrode plug. 31... Cylindrical insulator, 32... Cylindrical metal conductor, 33... Metal rod-shaped body, 34... Insulating cover, 36... Metal jacket, 37... Disc-shaped insulator, 39... ...Coil spring, JG...Glass electrode jack, PG...Glass electrode plug.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 中心部に軸線方向に貫通する孔を有するほぼ円
筒形状の絶縁体と、該円筒形状絶縁体の内部に配
置され、中心部に軸線方向に貫通する孔を有する
ほぼ円筒形状の金属導体と、該金属導体内に摺動
自在に配置され、該金属導体の上部肉厚部の端面
と電気接触する接点を備えた金属の棒状体と、該
金属の棒状体の上部を絶縁する絶縁カバーと、前
記円筒形状の絶縁体の外周をおおうほぼ円筒形状
の金属の外被と、前記円筒形状絶縁体の底部開口
端を閉塞する円板形状の絶縁体と、前記金属の棒
状体の接点を前記円筒形状の金属導体の肉厚部の
端面と強制的に電気接触させるように前記金属の
棒状体に弾性バイアスを与えるスプリングとを具
備し、前記金属の棒状体の接点と前記円筒形状の
金属導体の肉厚部の端面との電気接触によつて高
インピーダンス増幅回路の入力側を短絡し、プラ
グが嵌合されてその中心導体が前記金属の棒状体
の上部を絶縁する絶縁カバーを押圧することによ
つて前記電気接触を開放して前記高インピーダン
ス増幅回路の入力側の短絡を解除するようにした
ことを特徴とする入力短絡型ジヤツク。 a substantially cylindrical insulator having a hole penetrating in the axial direction in the center; a substantially cylindrical metal conductor disposed inside the cylindrical insulator and having a hole penetrating in the center in the axial direction; a metal rod-shaped body that is slidably disposed within a metal conductor and has a contact that makes electrical contact with an end surface of an upper thick portion of the metal conductor; an insulating cover that insulates the upper part of the metal rod-shaped body; A substantially cylindrical metal jacket that covers the outer periphery of the cylindrical insulator, a disc-shaped insulator that closes the bottom open end of the cylindrical insulator, and a contact point between the metal bar and the cylindrical insulator. a spring that applies an elastic bias to the metal bar so as to force it into electrical contact with the end face of the thick part of the metal conductor, the contact point of the metal bar and the wall of the cylindrical metal conductor. The input side of the high-impedance amplifier circuit is short-circuited by electrical contact with the end face of the thick part, and when the plug is fitted, its center conductor presses against the insulating cover insulating the upper part of the metal bar. An input short-circuit type jack characterized in that the short circuit on the input side of the high impedance amplifier circuit is released by opening the electrical contact.
JP1990092929U 1990-09-04 1990-09-04 Connection structure of input short-circuit type jack and plug for PH meter Expired - Lifetime JP2547980Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1990092929U JP2547980Y2 (en) 1990-09-04 1990-09-04 Connection structure of input short-circuit type jack and plug for PH meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990092929U JP2547980Y2 (en) 1990-09-04 1990-09-04 Connection structure of input short-circuit type jack and plug for PH meter

Publications (2)

Publication Number Publication Date
JPH0451777U true JPH0451777U (en) 1992-04-30
JP2547980Y2 JP2547980Y2 (en) 1997-09-17

Family

ID=31829763

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990092929U Expired - Lifetime JP2547980Y2 (en) 1990-09-04 1990-09-04 Connection structure of input short-circuit type jack and plug for PH meter

Country Status (1)

Country Link
JP (1) JP2547980Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005322525A (en) * 2004-05-10 2005-11-17 Hiroyuki Honda Shielded cable with plug

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58179775U (en) * 1982-05-27 1983-12-01 パイオニア株式会社 Connection cord for audio equipment
JP3057885U (en) * 1998-09-21 1999-06-08 株式会社リボール Plastic block with tile-like uneven pattern

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58179775U (en) * 1982-05-27 1983-12-01 パイオニア株式会社 Connection cord for audio equipment
JP3057885U (en) * 1998-09-21 1999-06-08 株式会社リボール Plastic block with tile-like uneven pattern

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005322525A (en) * 2004-05-10 2005-11-17 Hiroyuki Honda Shielded cable with plug

Also Published As

Publication number Publication date
JP2547980Y2 (en) 1997-09-17

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