To provide a sensor mounting mechanism for attaching a position detection sensor to a hydraulic cylinder having a rail in the longitudinal direction on an outer face of a cylinder tube and mounting the position detection sensor having directivity toward the proper direction.
The position detection sensor 30 for detecting an operation position of a piston and having directivity is attached to the channel-like rail 3 in the longitudinal direction on the outer face of the cylinder tube 2 through a sensor mounting device 10. The sensor mounting device 10 has a fixing part 11 to the rail 3 and a sensor mounting part 15 provided continuously with the fixing part and being in close proximity or in contact with a surface of the cylinder tube 2 on an outer side of a rail wall 4. The sensor mounting part is provided with a mounting guide 16 for mounting the sensor along the direction parallel with the axis of the cylinder by directing directivity for detecting magnetic force in the position detection sensor 30 toward substantially the center of the cylinder.
| JP2589457 | PISTON POSITION DETECTOR |
| WO/1990/013747 | HYDRAULIC DRIVE |
| JP7369395 | fluid pressure actuator |
Masahiko Goto
Hayashi Naoki