Title:
FEEDBACK MECHANISM AND VALVE POSITIONER
Document Type and Number:
Japanese Patent JP3927043
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a feedback mechanism and a valve positioner which prevent the wear and breakage by improving the vibration-proof structure to improve the reliability, and extend a service life.
SOLUTION: The feedback mechanism 24 comprises a feedback pin 32 interlocking with the movement of an operating shaft 23 of a controller 22 connected to a driving shaft of a valve 21, a feedback shaft 33, and a feedback sensor for detecting the angle of rotation of the feedback shaft 33. The feedback pin 32 and the feedback shaft 33 are connected with a connection member 35. The connection member 35 consists of a cylindrical first bearing part 37 for inserting the feedback pin 32, a cylindrical second bearing part 38 for inserting the feedback shaft 33, and a connection part 39 for connecting the first and second bearing parts 37 and 38.
Inventors:
Ito happiness
Application Number:
JP2002035048A
Publication Date:
June 06, 2007
Filing Date:
February 13, 2002
Export Citation:
Assignee:
YAMATAKE CORPORATION
International Classes:
F15B5/00; F15B9/07; F16H21/44; F16K37/00; G05D16/20; (IPC1-7): F15B5/00; F15B9/07
Domestic Patent References:
| JP7190001A | ||||
| JP7083303A | ||||
| JP5650818U | ||||
| JP11125204A |
Other References:
機械の素 復刊委員会,新編 機械の素,日本,理工学社/中川乃信,1973年11月10日,第7版,P.198
Attorney, Agent or Firm:
Masaki Yamakawa