Binding machine

A binding machine comprising:

• a wire feeding unit that is capable of feeding a wire from a wire reel which has a tubular hub, the tubular hub being rotatably supported on a main body of the binding machine, the tubular hub including a rotation axis;
• a curl arm that plastically deforms the wire fed out from the wire feeding unit to form a circle locus, the curl arm including a wire passage through which the wire fed out from the wire feeding unit passes;
• a curl guide having a receiving groove that extends in a direction parallel with the wire passage and that picks up the wire which is plastically deformed by the curl arm;
• and
• a twisting unit that twists the wire to bind a binding object after winding the wire which is plastically deformed by the curl arm, around the binding object,
• wherein a plane is defined by a center of the wire passage in the curl arm in a rotation axis direction of the hub,
• wherein a cross section is defined by cutting through a center point of the hub in a direction parallel with the plane, the center point of the hub being located at a midpoint along the rotation axis of the hub,
• wherein the cross section is offset from the plane in a first direction along the rotation axis of the hub, and a center position of the receiving groove in the rotation axis direction is offset from the plane in a second direction along the rotation axis of the hub, the first direction being opposite to the second direction.