XY separate crank mechanism and driving device provided therewith

An XY separate crank mechanism provided between a movable body for reciprocating in a first direction and a rotatable crankshaft to mutually convert reciprocating motion of the movable body and rotational motion of the crankshaft, comprising:

• a support member formed in an L-shape, comprising a first support portion extending in the first direction and a second support portion extending in a second direction perpendicular to the first direction from the first support portion, wherein only the first support portion is supported to freely reciprocate in the first direction by a first slider extending in the first direction;
• a crank connecting member comprising an end portion, only the end portion of the crank connecting member being mounted on the second support portion of the support member to freely reciprocate in the second direction by a second slider extending in the second direction and a crank pin of the crankshaft rotatably engaged with the crank connecting member;
• and
• a connecting member connecting the movable body and the second support portion of the support member and configured to reciprocate in the first direction together with the movable body and the support member, wherein
• the support member, the crank connecting member, and the connecting member are provided movably in a reference plane containing a movement axis of the movable body.