Title:
OPENING/CLOSING DISPLAY STRUCTURE, OPENING/CLOSING DISPLAY DEVICE, AND COLD TEMPERATURE VALVE DEVICE
Document Type and Number:
Japanese Patent JP2018189215
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an opening/closing display structure which can display an opening/closing state unfailingly even under an environment in which an opening/closing display mechanism may be cooled to be fixed, and to provide an opening/closing display device and a cold temperature valve device.SOLUTION: An opening/closing display structure includes: a rotor 10 which rotates with a rotary handle 110 which is rotationally operated relative to a valve body 150 having an on-off valve 140 therein to operate opening/closing of the on-off valve 140; a moving ring 30 which may move in a vertical direction relative to the valve body 150; and a moving mechanism 50 which coverts driving of the rotor 10 in a rotation direction into vertical movement of the moving ring 30. The rotor 10 and the moving ring 30 face each other in a radial interior-exterior direction. The moving mechanism 50 comprises: a spiral screw grove 34 which is formed on an inner peripheral surface of the moving ring 30 and extends in the vertical direction; and a spiral protruding part 15 which is spirally disposed on an outer peripheral surface of the rotor 10 and engages with the screw grove 34. The spiral protruding part 15 is formed into a non-surface contact shape which makes no surface contact with the screw groove 34 in an engagement state.SELECTED DRAWING: Figure 2
Inventors:
HIRAGAMI YASUSHI
Application Number:
JP2017094518A
Publication Date:
November 29, 2018
Filing Date:
May 11, 2017
Export Citation:
Assignee:
NERIKI KK
International Classes:
F16K37/00; F16K31/50
Attorney, Agent or Firm:
Motoaki Nagata
Eiji Ota
Yoshiaki Nagata
Eiji Ota
Yoshiaki Nagata