| 摘要 |
In a link mechanism, a first link is disposed to be movable by a driving force from a driving source, and a second link is operatively linked with the first link to move a driven unit. One of the first and second links includes a cam groove having a bent portion which is bent by a radius of curvature smaller than a predetermined value, and the other one of the first and second links includes a pin slidable within the cam groove. In the link mechanism, a sliding speed of the pin sliding in the cam groove is reduced when the pin enters into the bent portion in the cam groove, as compared with the sliding speed before the pin enters into the bent portion.
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