| 摘要 |
1. A sealed, rotary transmission device of bellows construction, comprising a control shaft (14) and a receiver shaft (20), of the type in which said bellows (26) surrounds said receiver shaft and is fixed in a sealed manner at both of its ends, at one end to a fixed part (28) of a casing and, at the other end, to a transfer member (32) constrained to move parallel to a plane perpendicular to said receiver shaft (20), characterised in that said control shaft (14) and said receiver shaft (20) are parallel, spaced apart by a distance (d) and disposed on either side of the transfer member (32), in that each shaft comprises a crank (14a, 20a) offset by the same predetermined distance (x) from its axis, and in that these two cranks are coupled to said transfer member (32) and are spaced by the same distance (d) as said shafts so as to allow a circular movement induced by said transfer member. |
