| 摘要 |
The mechanism (7) has a hammer (61) mounted in translation between an inactive position and an active position. The hammer is elongated from heart-pieces (55, 57, 59) connected to an indicator unit. The hammer exerts a zero setting force against the heart-pieces in the inactive and active positions, respectively. The hammer has two posts (64, 66) mounted slidingly in openings (100, 102) in a manner that displacement vectors of the posts between the positions are collinear and non aligned. |
