JPS6474305A - Fluid pressure cylinder having stroke detector - Google Patents

Fluid pressure cylinder having stroke detector

Info

Publication number
JPS6474305A
JPS6474305A JP22899187A JP22899187A JPS6474305A JP S6474305 A JPS6474305 A JP S6474305A JP 22899187 A JP22899187 A JP 22899187A JP 22899187 A JP22899187 A JP 22899187A JP S6474305 A JPS6474305 A JP S6474305A
Authority
JP
Japan
Prior art keywords
piston rod
fluid pressure
pressure cylinder
stroke detector
rod
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
JP22899187A
Other languages
Japanese (ja)
Inventor
Yukinori Nakajima
Ken Sawada
Hiroshi Sato
Toshiki Kawamura
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.)
KOGANEI SEISAKUSHO KK
Koganei Corp
Original Assignee
KOGANEI SEISAKUSHO KK
Koganei Corp
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 KOGANEI SEISAKUSHO KK, Koganei Corp filed Critical KOGANEI SEISAKUSHO KK
Priority to JP22899187A priority Critical patent/JPS6474305A/en
Publication of JPS6474305A publication Critical patent/JPS6474305A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To enable precise measurement to be achieved by forming a scale with an annular non-magnetic material provided on the surface of a piston rod made of a ferromagnetic material. CONSTITUTION:A rod material 11 used for a piston rod 10 is made of a ferromagnetic material and a slot having about 1mm pitch is finished on an outer periphery of the rod material 11. A non-magnetic material 12 is imbedded in the slot to flatten the surface of the piston rod. Thereby precise measurement can be performed since rotation of the piston rod 10 is not detected as the rotation of the piston rod 10, even when the piston rod 10 is rotated.
JP22899187A 1987-09-11 1987-09-11 Fluid pressure cylinder having stroke detector Pending JPS6474305A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22899187A JPS6474305A (en) 1987-09-11 1987-09-11 Fluid pressure cylinder having stroke detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22899187A JPS6474305A (en) 1987-09-11 1987-09-11 Fluid pressure cylinder having stroke detector

Publications (1)

Publication Number Publication Date
JPS6474305A true JPS6474305A (en) 1989-03-20

Family

ID=16885052

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22899187A Pending JPS6474305A (en) 1987-09-11 1987-09-11 Fluid pressure cylinder having stroke detector

Country Status (1)

Country Link
JP (1) JPS6474305A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59212503A (en) * 1983-05-16 1984-12-01 Toyota Motor Corp Cylinder apparatus
JPS6023334B2 (en) * 1976-08-19 1985-06-07 キヤノン株式会社 Camera shutter release safety device
JPS61137001A (en) * 1984-12-07 1986-06-24 S G:Kk Apparatus for detecting position of piston rod of hydraulic cylinder
JPS61195301A (en) * 1985-02-26 1986-08-29 Nachi Fujikoshi Corp Linear scale reading device with moving object itself as scale

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6023334B2 (en) * 1976-08-19 1985-06-07 キヤノン株式会社 Camera shutter release safety device
JPS59212503A (en) * 1983-05-16 1984-12-01 Toyota Motor Corp Cylinder apparatus
JPS61137001A (en) * 1984-12-07 1986-06-24 S G:Kk Apparatus for detecting position of piston rod of hydraulic cylinder
JPS61195301A (en) * 1985-02-26 1986-08-29 Nachi Fujikoshi Corp Linear scale reading device with moving object itself as scale

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