| 摘要 |
The horizontal bar (1) consists of a rod (6) with two couplings (7,8). It is secured to tubular uprights (2,3). The first coupling has a lip (10) extending beyond an insert (9). The bar is offered to a hole in the upright at an angle in order to insert the lip. The diameter of the collar exceeds that of the hole. The second coupling is a cylinder with a right-angled slot (13). Axial movement of its handle (15) extends the insert (16) into the hole in the upright. Radial movement rotates a locking lip (18).
|
