| 摘要 |
The device has openings defined by an upper longeron, lower longeron, post and a pivoting arm (4). The pivoting arm is cooperate with a rubber mass (9) arranged at a bottom of an articulation axle (5) of the arm. A mass supporting unit supports another mass (12) extending above the articulation axle of the arm. A face constitutes a meet zone between the arm and the mass. |
