JPH0291203U - - Google Patents

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Publication number
JPH0291203U
JPH0291203U JP17044188U JP17044188U JPH0291203U JP H0291203 U JPH0291203 U JP H0291203U JP 17044188 U JP17044188 U JP 17044188U JP 17044188 U JP17044188 U JP 17044188U JP H0291203 U JPH0291203 U JP H0291203U
Authority
JP
Japan
Prior art keywords
signal
piston
circuit
detection
warning
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
JP17044188U
Other languages
Japanese (ja)
Other versions
JPH0637201Y2 (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 JP1988170441U priority Critical patent/JPH0637201Y2/en
Publication of JPH0291203U publication Critical patent/JPH0291203U/ja
Application granted granted Critical
Publication of JPH0637201Y2 publication Critical patent/JPH0637201Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Actuator (AREA)

Description

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

第１図は本考案を具体化したピストン位置検出
装置の回路図、第２図はピストン位置検出装置を
取付けたシリンダの部分断面図、第３図は磁気セ
ンサの出力と警告表示灯及び出力トランジスタの
オン、オフ状態を示す図、第４図は従来装置の回
路図である。 磁気センサ…１、検出回路…２、ＯＲ回路…３
、ＮＡＮＤ回路…４，５、タイマー回路…６、Ｎ
ＯＴ回路…７、第１表示灯としての危険感度表示
灯…８、第２表示灯としての最適感度表示灯…９
、ピストン…１１、永久磁石…１２、ピストン位
置検出装置…１３、危険感度出力線…２０、警告
表示灯…２１、フリツプフロツプ…２２、タイマ
ー回路…２３、警告信号表示保持回路…２４、警
告信号出力回路…２５、出力トランジスタ…Ｑ２
、トランジスタ…Ｑ３。 Fig. 1 is a circuit diagram of a piston position detection device embodying the present invention, Fig. 2 is a partial sectional view of a cylinder to which the piston position detection device is attached, and Fig. 3 shows the output of a magnetic sensor, a warning indicator light, and an output transistor. FIG. 4 is a circuit diagram of a conventional device. Magnetic sensor...1, detection circuit...2, OR circuit...3
, NAND circuit...4, 5, timer circuit...6, N
OT circuit...7, Danger sensitivity indicator light as the first indicator light...8, Optimum sensitivity indicator light as the second indicator light...9
, Piston...11, Permanent magnet...12, Piston position detection device...13, Hazard sensitivity output line...20, Warning indicator light...21, Flip-flop...22, Timer circuit...23, Warning signal display holding circuit...24, Warning signal output Circuit...25, output transistor...Q2
, transistor...Q3.

Claims (1)

【実用新案登録請求の範囲】 流体圧シリンダのピストン１１に固定された磁
石１２の磁気を検出する磁気センサ１の出力信号
に基づきピストン１１が磁気センサ１に対して所
定の危険領域内にあることを検出したとき第１の
検出信号を出力し、ピストン１１が最適領域内に
あることを検出したとき第２の検出信号を出力す
る検出回路２と、 前記第１の検出信号に基づいて点灯する第１表
示灯８と、 前記第２の検出信号に基づいて点灯する第２表
示灯９と、 前記第１の検出信号のみが所定時間継続して出
力されたとき警告信号を出力する警告信号出力回
路２５と、 前記警告信号出力回路２５の警告信号を入力す
ると同時に警告表示灯２１を点灯する動作信号を
出力し、該動作信号出力後、前記第２の検出信号
が所定時間継続して出力されたとき該検出信号に
基いて前記動作信号の出力を停止する警告信号表
示保持回路２４と、 を備えた流体圧シリンダのピストン位置検出装
置。[Claims for Utility Model Registration] The piston 11 is within a predetermined dangerous area with respect to the magnetic sensor 1 based on the output signal of the magnetic sensor 1 that detects the magnetism of the magnet 12 fixed to the piston 11 of the fluid pressure cylinder. a detection circuit 2 that outputs a first detection signal when detecting that the piston 11 is within the optimum range; and a detection circuit 2 that outputs a second detection signal when detecting that the piston 11 is within the optimum range; a first indicator light 8; a second indicator light 9 that lights up based on the second detection signal; and a warning signal output that outputs a warning signal when only the first detection signal is continuously output for a predetermined period of time. circuit 25, and at the same time as the warning signal of the warning signal output circuit 25 is input, an operation signal for lighting up the warning indicator lamp 21 is outputted, and after outputting the operation signal, the second detection signal is continuously outputted for a predetermined period of time. A piston position detection device for a fluid pressure cylinder, comprising: a warning signal display holding circuit 24 that stops outputting the operation signal based on the detection signal.
JP1988170441U 1988-12-29 1988-12-29 Piston position detector for fluid pressure cylinder Expired - Lifetime JPH0637201Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988170441U JPH0637201Y2 (en) 1988-12-29 1988-12-29 Piston position detector for fluid pressure cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988170441U JPH0637201Y2 (en) 1988-12-29 1988-12-29 Piston position detector for fluid pressure cylinder

Publications (2)

Publication Number Publication Date
JPH0291203U true JPH0291203U (en) 1990-07-19
JPH0637201Y2 JPH0637201Y2 (en) 1994-09-28

Family

ID=31461388

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988170441U Expired - Lifetime JPH0637201Y2 (en) 1988-12-29 1988-12-29 Piston position detector for fluid pressure cylinder

Country Status (1)

Country Link
JP (1) JPH0637201Y2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08145613A (en) * 1994-11-22 1996-06-07 Ckd Corp Piston position detector
JP2011169696A (en) * 2010-02-17 2011-09-01 Asahi Kasei Electronics Co Ltd Magnetic sensor unit
KR101866227B1 (en) * 2016-07-29 2018-07-19 주식회사 세야 Head Up Display Unit Assembly Jig for Vehicle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59223024A (en) * 1983-06-01 1984-12-14 Fuji Electric Co Ltd Photoelectric detecting device
JPH0253503U (en) * 1988-10-12 1990-04-18
JPH0637201U (en) * 1992-10-26 1994-05-17 真美代 山田 Assembly box

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59223024A (en) * 1983-06-01 1984-12-14 Fuji Electric Co Ltd Photoelectric detecting device
JPH0253503U (en) * 1988-10-12 1990-04-18
JPH0637201U (en) * 1992-10-26 1994-05-17 真美代 山田 Assembly box

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08145613A (en) * 1994-11-22 1996-06-07 Ckd Corp Piston position detector
JP2011169696A (en) * 2010-02-17 2011-09-01 Asahi Kasei Electronics Co Ltd Magnetic sensor unit
KR101866227B1 (en) * 2016-07-29 2018-07-19 주식회사 세야 Head Up Display Unit Assembly Jig for Vehicle

Also Published As

Publication number Publication date
JPH0637201Y2 (en) 1994-09-28

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