| 摘要 |
The metal plate (1) exhibits length of about 3 cm, width of about 3 cm and thickness of about 2 mm. A V-shaped spring steel sheet (2) is horizontally mounted on the metal plate. The spring steel sheet is firmly connected to the metal plate on a narrower side of the V-shape of the spring steel sheet. Three-fourths of the spring steel sheet is free movable. The spring plate is slightly bent at two running down end pieces. Four boreholes (3) are provided for fixation purpose. |
