| 摘要 |
The motorised joint has a pair of members (60,61) which are movable relative to one another about a joint (62). Power to actuate the joint is provided by an inflatable hose (64) having an inextensible wall acting between the members. A strap (72) interconnects the inflatable hose (64) to the members so that in one position of relative movement of the members the hose is in a deflated, flat and folded condition. - Inflating the hose increases the cross-section and unfolding the hose causes relative movement between the members from the one position to a further position of relative movement. The hose is hollow, sealed at one end and has a flat transverse cross-section when deflated.
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