Binding machine

A binding machine, comprising:

• an accommodation portion accommodating a reel around which a wire is wound;
• a wire feeding portion configured to feed the wire wound around the reel in a forward direction, winds the wire around a binding object, feeds the wire wound around the binding object in a reverse direction, and wraps the wire around the binding object;
• and
• a torsion portion configured to twist the wire, wherein
• the accommodation portion accommodates the reel in such a manner that the reel is offset with respect to the wire feeding portion in one direction along an axis of rotation of the reel when the reel is rotated by the wire being fed,
• the binding machine further comprising a restricting portion located in a wire passage between the reel accommodated in the accommodation portion and the wire feeding portion, the restricting portion protruding inward of the accommodation portion to restrict bending of the wire in the wire passage in a direction opposite to the direction the reel is offset and having a restricting surface which comes in contact with the wire when the wire is bent in the direction opposite to the direction the reel is offset, wherein
• the restricting surface is concave in the direction opposite to the direction the reel is offset, and
• the restricting portion further includes a restricting convex portion provided along the restricting surface, the restricting convex portion protruding in the direction of the reel offset from the restricting surface to restrict the wire from coming off the restricting surface in a direction toward the reel.