JPS6474305A - Fluid pressure cylinder having stroke detector - Google Patents
Fluid pressure cylinder having stroke detectorInfo
- 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
Links
Landscapes
- Actuator (AREA)
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.
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)
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 |
-
1987
- 1987-09-11 JP JP22899187A patent/JPS6474305A/en active Pending
Patent Citations (4)
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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