CPC F16H 25/125 (2013.01) | 3 Claims |
1. A drive mechanism comprising:
a rotatable rod that includes rod parts which are separated by a boundary along a central axis, the rod parts each being independently movable along the central axis;
a support member having a slide groove that is in the form of a ring and that surrounds the rotatable rod; and
an outer cylinder that is disposed between the rotatable rod and the support member and that has longitudinal grooves each extending along the central axis, wherein
the rod parts have respective protrusions that stick out from side surfaces of the respective rod parts,
the protrusions are capable of sliding in the slide groove and the longitudinal grooves,
the rod parts having the respective protrusions are configured such that sliding of each of the protrusions in the slide groove causes a corresponding one of the rod parts to move along the central axis, and
the protrusions are configured such that rotation of the outer cylinder about the central axis causes each of the protrusions to slide in the slide groove.
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