| 摘要 |
PROBLEM TO BE SOLVED: To provide a Bourdon tube pressure gauge capable of maintaining a smooth operation by eliminating wear between a rotary piece and a pointer shaft due to transmission of rotation of the rotary piece to the pointer shaft.SOLUTION: A permanent magnet integrally formed by adhesion and the like is faced to a rotary piece and a pointer part, which constitute a pressure display conversion mechanism, for allowing transmission of rotation at a predetermined gap. This pressure gauge mechanism transmits the rotation through an air gap. Thus, pressure display can be performed accurately without receiving influences of microvibration of a Bourdon tube even when the Bourdon tube deflects in response to pressure at the time of changes of the pressure applied to the Bourdon tube. |
