| 摘要 |
PURPOSE:To retain the shock receiving force and the springy force of a solid spring for a long time and obtain a lightweight and small-sized buffer by using a bellows for the extension plane of the buffer and forming a vent hole having a proper aperture onto the bellows. CONSTITUTION:The opened ports at the both edges of a bellows 3 are closed to keep the inside airtight, and a shock receiving plate 1 and a shock transmitting plate 2 are joined onto the both edge parts of the bellows 3. A vent hole 4 is formed, penetrating through the shock transmitting plate 2 and the bellows 1 joined with the shock transmitting plate 2. The both edges of a coil spring 5 are connected with the shock receiving plate 1 and the shock transmitting plate 2 inside or one the outer periphery of the bellows 3, penetrating through the bellows 3. Therefore, the amount of air which passes through the vent hole 4 can be increased, and the allowable shock receiving force can be increased, and the long duration of shock softening time is permitted and the reduction of dimension of the apparatus is permitted. |
