| 摘要 |
The telescopic rail expansion has a rolling unit cage (3) with rolling units (4) that is provided between a base rail (1) and a movable slide rail (2). A ramp-like retainer is provided at one end portion (10) of the base rail for retaining the rolling unit. The ramp-like retainer is provided with a center opening having diameter smaller than the rolling unit. The ramp-like retainer is arched like a bump continuously up to the center opening towards the running surface of the base rail, so that the movable slide rail is locked at the base rail. |
