| 摘要 |
The support, especially for a flashing light (4) protected by a grille (6), consists of vertical (1) and horizontal (2) tubes, connected to a fixed bracket (8) by a spring-loaded bolt (7) passing through the horizontal tube. The horizontal tube interacts with the bracket through a curved washer (3) and two balls (10), and it has a grease nipple (18). In variants the spring (9) can be replaced by rubber compression rings, and instead of a grease nipple a Teflon (RTM) washer can be placed between the bolt and bracket. |
