JPH0380108U - - Google Patents
Info
- Publication number
- JPH0380108U JPH0380108U JP14034989U JP14034989U JPH0380108U JP H0380108 U JPH0380108 U JP H0380108U JP 14034989 U JP14034989 U JP 14034989U JP 14034989 U JP14034989 U JP 14034989U JP H0380108 U JPH0380108 U JP H0380108U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic pole
- piston
- movable contact
- cylinder
- magnetic
- 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
Links
- 238000001514 detection method Methods 0.000 claims description 2
- 238000013459 approach Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Actuator (AREA)
Description
第１図はこの考案に係るシリンダ内のピストン
位置検出装置の断面図、第２図はピストンがセン
サーに接近した時に作動図を示す。
１……シリンダ、２……ピストン、４，７，１
２……磁極、５……エンドプレート、８……ピス
トン位置検出用センサー、９……固定接点、１０
……可動接点。
FIG. 1 is a sectional view of a piston position detecting device in a cylinder according to this invention, and FIG. 2 is a diagram showing the operation when the piston approaches the sensor. 1...Cylinder, 2...Piston, 4,7,1
2... Magnetic pole, 5... End plate, 8... Piston position detection sensor, 9... Fixed contact, 10
...Movable contact.
Claims (1)
またシリンダ内でエンドプレート近傍に可動接点
保持用の磁極を設け、該両磁極間にピストン位置
検出用センサーを配置し、更に該ピストン位置検
出用センサーの可動接点に磁極を設け、前記ピス
トの後退時における前記可動接点の磁極に対する
ピストン後端部の磁極の磁界の強さを前記可動接
点保持用の磁極の磁界の強さよりも強くしたこと
を特徴とするシリンダ内のピストン位置検出装置
。 Attach a magnetic pole to the rear end of the piston inside the cylinder,
Further, a magnetic pole for holding a movable contact is provided in the cylinder near the end plate, a sensor for detecting the piston position is arranged between the two magnetic poles, and a magnetic pole is further provided for the movable contact of the sensor for detecting the piston position, so that the piston can be retracted. A piston position detection device in a cylinder, characterized in that the strength of the magnetic field of the magnetic pole at the rear end of the piston with respect to the magnetic pole of the movable contact is made stronger than the strength of the magnetic field of the magnetic pole for holding the movable contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989140349U JPH0740093Y2 (en) | 1989-12-05 | 1989-12-05 | Piston position detection device in cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989140349U JPH0740093Y2 (en) | 1989-12-05 | 1989-12-05 | Piston position detection device in cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0380108U true JPH0380108U (en) | 1991-08-16 |
| JPH0740093Y2 JPH0740093Y2 (en) | 1995-09-13 |
Family
ID=31687331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989140349U Expired - Lifetime JPH0740093Y2 (en) | 1989-12-05 | 1989-12-05 | Piston position detection device in cylinder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0740093Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6130709U (en) * | 1984-07-28 | 1986-02-24 | 東海オ−トメ−シヨン株式会社 | Reed switch mounting structure in piston position detection device in fluid pressure cylinder |
| JPS63221525A (en) * | 1987-03-10 | 1988-09-14 | 株式会社東芝 | Switching mechanism |
-
1989
- 1989-12-05 JP JP1989140349U patent/JPH0740093Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6130709U (en) * | 1984-07-28 | 1986-02-24 | 東海オ−トメ−シヨン株式会社 | Reed switch mounting structure in piston position detection device in fluid pressure cylinder |
| JPS63221525A (en) * | 1987-03-10 | 1988-09-14 | 株式会社東芝 | Switching mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0740093Y2 (en) | 1995-09-13 |