| 摘要 |
The telescopic bracing device comprises a gas piston (5) cooperating with a button part (1) connected to the outer telescopic part (7), and a gearing part (2) cooperating with the gas piston and connected to the inner telescopic part (8). The gearing part is actuated by a wire (3) that extends from the button part around the gearing part and down to a pedal part (4) movably mounted in the outer telescopic part. |
