| 摘要 |
A service basket arrangement (10) is adapted to move on mounting means (71, 72) which are secured on a support ramp (70) and/or rails (37) or on similar mounting means which are secured to the under side of a platform deck or on a similar downwardly facing foundation. The service basket (10) is supported, via a number of joint arm-formed, hydraulically pivotable support means (75-78) with associated separate hydraulically operated catch claws (22), on the said rails (37) or similar mounting means (71, 72). A feeler means or a pair of feeler means (64, 65) in each catch claw controls the operation of the remaining catch claws and/or the support means of the remaining catch claws, so that when the one catch claw assumes an open or released position, the associated feeler means provides for the blocking of the operation of the remaining catch claws and/or support means of the remaining catch claws. |
