Patent ID: 11927024
Assignee: MAX CO., LTD.
Field: nan (nan)
Classification: CPC nan | IPC B  E

Claim 0:
1. A binding machine comprising:
a wire feeding unit configured to feed a wire;
a curl guide arranged along a loop feeding path of the wire along which the wire fed in a first direction by the wire feeding unit is wound around an object; and
a binding unit which includes a rotary shaft to twist the wire fed in the first direction by the wire feeding unit and wound on the object,
wherein the wire feeding unit comprises a pair of feeding members and a feeding motor that drives the feeding members, the pair of feeding members having a cylindrical outer surfaces, being arranged such that the outer surfaces face each other with a feeding path of the wire being interposed therebetween, and being configured to rotate in mutually opposite directions so as to feed the wire sandwiched between the outer surfaces,
wherein the binding machine further comprises a control circuit configured to control the wire feeding unit,
wherein the control circuit is configured to control the wire feeding unit to discharge the wire sandwiched by the feeding members from the feeding members in a second direction opposite to the first direction,
wherein the control circuit is configured to control the feeding motor to feed the wire sandwiched by the feeding members in the second direction opposite to the first direction until the wire comes off from the feeding members, and
wherein the control circuit is configured to detect a value of current flowing through the feeding motor, to detect variation in load that is applied to the feeding motor based on the detected value of current flowing through the feeding motor, and to determine that the wire comes off from the feeding members to stop the feeding motor that feeds the wire in the second direction, based on variation in load that is applied to the feeding motor or based on a rotating amount of the feeding motor.