Binding machine

A binding machine comprising:

• a wire feeding unit which feeds a wire;
• a curl guide which curls the wire fed by the wire feeding unit around an object to be bound;
• a binding unit including a twisting shaft which is rotatable around a predetermined axis, and a gripping part located at one end of the twisting shaft, wherein the gripping part grips the wire curled by the curl guide and the twisting shaft twists the gripped wire so as to bind the object;
• a motor which operates the binding unit;
• a binding machine main body having a front end side at which the object is bound and a rear end side at an opposite end to the front end side, wherein the curl guide is located at the front end side, and wherein the wire feeding unit, the motor and the binding unit are housed by the binding machine main body;
• a setting unit located at the rear end side of the binding machine main body and which sets a predetermined operation condition, wherein the setting unit includes a manually operable adjustment device which adjusts operation of the motor,
• wherein the binding machine main body includes a protruding portion protruding at the rear end side of the binding machine main body at a location adjacent to the setting unit,
• the protruding portion of the binding machine main body includes a convex part provided around at least a portion of the setting unit, and
• the convex part includes a notch or an open portion to communicate with areas outside of the convex part.