| 摘要 |
A removable load transfer device (100) for use in height safety apparatus comprises: spaced-apart rotary members (101, 102) sharing an axis of rotatio n (200), each having a hub portion and at least one recess (107, 108) in its periphery; slipper (110) extending between the rotary members (101, 102) and defining therewith space (150) for receiving elongate element (250) on which the device (100) travels, in use; attachment means (300) for attaching a loa d to the device (100), and access means to enable element (250) to be introduc ed into or removed from space (150) to allow the device (100) to be attached to or detached from element (250); and is characterised in that said access mea ns comprises at least one notch (117, 118) in the hub of each rotary member (10 1, 102) and in that attachment means (300) comprises a moveable link assembly operable between: (a) a blocking position in which it prevents access to notches (117, 118) by said element (250), and (b) a release position in whic h it allows access to notches (117, 118) by said element (250), whereby said slipper (110) is enabled to pass the element (250) to cover or expose space (150) according to whether device (100) is being attached to or released fro m the element (250).
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