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Title:
ROTARY VALVE WITH MINUTE OPENING DISPLAY FUNCTION AND MINUTE OPENING ADJUSTMENT METHOD
Document Type and Number:
Japanese Patent JP2018179242
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a rotary valve with a minute opening display function and a minute opening adjustment method, capable of displaying a rotation amount at the time when a valve body rotates from an arbitrary rotational state, to the outside with more accuracy and precision compared to conventional arts, to thereby visually recognize minute opening to improve workability.SOLUTION: The rotary valve with a minute opening display function has a speed reducer 2 having an input shaft 3 and an output shaft, and the speed reducer 2 includes a full opening display part 23 indicating opening of the output shaft and a full opening pointer part 30 pointing the full opening display part 23. On the input shaft 3 side, provided is a minute opening display part 32 configured to display valve body opening corresponding to a rotation angle of the input shaft 3, within a minute opening range. The speed reducer 2 also includes a rotational frequency display part 22 displaying a rotational frequency of the input shaft 3, and a rotational frequency pointer part 31 pointing the rotational frequency of the input shaft 3 at the rotational frequency display part 22.SELECTED DRAWING: Figure 6

Inventors:
KAKEGAWA MITSUHIKO
HASHIOKA YOSHIO
Application Number:
JP2017083204A
Publication Date:
November 15, 2018
Filing Date:
April 19, 2017
Export Citation:
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Assignee:
SHIMIZU GOKIN SEISAKUSHO KK
International Classes:
F16K37/00; F16K31/53
Domestic Patent References:
JP2016011666A2016-01-21
JPS60215168A1985-10-28
Foreign References:
US5769118A1998-06-23
Attorney, Agent or Firm:
小林 哲男