Title:
RECIPROCATIVE VALVE DEVICE
Document Type and Number:
Japanese Patent JPS5943277
Kind Code:
A
Abstract:
PURPOSE:To make easy heat shield, and surely prevent fluid leakage, and simply and highly accurately adjust valve opening degree, by using magnet having a spiral pole surrounded by a sub housing of sealed structure so as to transmit force to a valve shaft. CONSTITUTION:When a handle 16 of a drive mechanism 21 provided outside of a vacuum heat insulating cell 1 is operated to rotate, such rotation is transmitted through a magnet coupling 23 to a solid shaft 22 in the vacuum heat insulating cell 1, and a rotary member 16 is rotated about an axis of a valve shaft 4. As a magnet 18 of the rotary member 16 and a magnet 8 of the valve shaft 4 are magnetically connected in such a manner that a drive nut and a screw rod are meshed with each other, when the rotary member 16 corresponding to the drive nut is rotated, the valve shaft 4 which is prevented from rotation is moved forwardly or backwardly in association with the rotation of the rotary member, thereby operating the valve member 5 supported by the shaft 4. Further, as the valve shaft 4 and the rotary member 16 may be held in uncontact with each other, heat transfer between inside and outside of the main casing may be easily shielded.
Inventors:
SAITOU HIDEFUMI
MITANI HISASHI
ANDOU MASANAO
ISAKA HIROSHI
HAYASHI MUNEHIRO
MITANI HISASHI
ANDOU MASANAO
ISAKA HIROSHI
HAYASHI MUNEHIRO
Application Number:
JP15233082A
Publication Date:
March 10, 1984
Filing Date:
August 31, 1982
Export Citation:
Assignee:
SHIMADZU CORP
International Classes:
F16K31/06; F16K31/08; (IPC1-7): F16K31/06
Attorney, Agent or Firm:
Kazuhiro Akazawa