| 摘要 |
A device (10) for descending stairs under the control of an operator is disclosed, comprising a frame (20) for accommodating and transporting a person, at least one continuous track (32) for engaging the stairs, mounted to the frame and supporting the frame and person whilst descending the stairs, characterised in that, the device further includes a braking mechanism (50, 150) controllable by the operator during the descent to provide resistance to the movement of the or each track. The braking mechanism includes a deadlock, and a friction brake for adjusting the speed of descent of the device.
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