JPH02127876U - - Google Patents

Info

Publication number
JPH02127876U
JPH02127876U JP3671189U JP3671189U JPH02127876U JP H02127876 U JPH02127876 U JP H02127876U JP 3671189 U JP3671189 U JP 3671189U JP 3671189 U JP3671189 U JP 3671189U JP H02127876 U JPH02127876 U JP H02127876U
Authority
JP
Japan
Prior art keywords
spool
detection arm
potentiometer
control valve
contact
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.)
Pending
Application number
JP3671189U
Other languages
Japanese (ja)
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 JP3671189U priority Critical patent/JPH02127876U/ja
Publication of JPH02127876U publication Critical patent/JPH02127876U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Operation Control Of Excavators (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Indication Of The Valve Opening Or Closing Status (AREA)

Description

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

図面は本考案に係る制御弁のスプール位置検出
構造の実施例を示し、第１図はポテンシヨメータ
付近の側面図、第２図はバツクホウの油圧回路図
、第３図はバツクホウの全体側面図、第４図は従
来構造におけるポテンシヨメータ付近の側面図で
ある。 １５……スプール、１６……制御弁、１８……
ポテンシヨメータ、１８ａ……ポテンシヨメータ
の検出アーム、２２……付勢機構。 The drawings show an embodiment of the spool position detection structure of a control valve according to the present invention, in which Fig. 1 is a side view of the vicinity of the potentiometer, Fig. 2 is a hydraulic circuit diagram of the backhoe, and Fig. 3 is an overall side view of the backhoe. , FIG. 4 is a side view of the vicinity of the potentiometer in the conventional structure. 15... Spool, 16... Control valve, 18...
Potentiometer, 18a...detection arm of potentiometer, 22...biasing mechanism.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 支点周りに揺動する検出アーム１８ａを備えた
ポテンシヨメータ１８を、前記検出アーム１８ａ
をスプール式の制御弁１６のスプール１５の外側
端に当て付けた状態で固定部に取り付けると共に
、前記検出アーム１８ａをスプール１５への当て
付け側に付勢する付勢機構２２を設けて、前記ス
プール１５の移動量を検出アーム１８ａの揺動角
度としてポテンシヨメータ１８により検出するよ
うにしてある制御弁のスプール位置検出構造。 A potentiometer 18 equipped with a detection arm 18a that swings around a fulcrum is connected to the detection arm 18a.
is attached to the fixed part of the spool-type control valve 16 in a state in which it is brought into contact with the outer end of the spool 15, and an urging mechanism 22 is provided which urges the detection arm 18a to come into contact with the spool 15. A spool position detection structure for a control valve in which the amount of movement of the spool 15 is detected by a potentiometer 18 as a swing angle of a detection arm 18a.
JP3671189U 1989-03-29 1989-03-29 Pending JPH02127876U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3671189U JPH02127876U (en) 1989-03-29 1989-03-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3671189U JPH02127876U (en) 1989-03-29 1989-03-29

Publications (1)

Publication Number Publication Date
JPH02127876U true JPH02127876U (en) 1990-10-22

Family

ID=31543180

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3671189U Pending JPH02127876U (en) 1989-03-29 1989-03-29

Country Status (1)

Country Link
JP (1) JPH02127876U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009185910A (en) * 2008-02-06 2009-08-20 Bosch Rexroth Corp Directional control valve

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5538454A (en) * 1978-09-11 1980-03-17 Mitsui Eng & Shipbuild Co Ltd Multi-tube type heat exchanger

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5538454A (en) * 1978-09-11 1980-03-17 Mitsui Eng & Shipbuild Co Ltd Multi-tube type heat exchanger

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009185910A (en) * 2008-02-06 2009-08-20 Bosch Rexroth Corp Directional control valve

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