| 摘要 |
A crank driving apparatus (20) includes a first supporting member (22), a second supporting member (24) including an eccentric shaft (24a), and a coupling member (26) rotatably supported by the second supporting member (24) via the eccentric shaft (24a) and coupled to an object that is to be driven. The second supporting member (24) is disposed in such a manner that an attachment position of the second supporting member (24) relative to the first supporting member (22) is adjustable in an eccentric direction which determines an eccentric distance of the axis of the eccentric shaft (24a) from the axis of a driving shaft (34). |
