| 摘要 |
The castor has a housing with wheel on a bearing shaft and a lifting device (5). This consists of two eccentrics (20) fastened non-turnably to both ends of the shaft (2). Each eccentric engages positively into a corresponding round or oval aperture in a side plate (24,25) of the stand device (6). At least one eccentric has two define stop surfaces (26,27) for two stable above dead center positions. The surfaces are turned via the bearing shaft in opposite directions against a stop projection (29) on one of the side plates. |
