An apparatus configured to twist a first wire about a second wire is presented herein. The apparatus includes a securing mechanism configured to secure ends of the first wire and the second wire. The first wire is arranged parallel to the second wire along a longitudinal axis. The apparatus also includes a gripping mechanism configured to grip central portions of the first and second wires such that inner surfaces of the central portions of the first and second wires are in contact with one another and a rotating mechanism configured to rotate the gripping mechanism, thereby twisting the first and second wires about one another. A method of twisting a first wire about a second wire is also presented herein.

An apparatus configured to twist a first wire about a second wire is presented herein. The apparatus includes a securing mechanism configured to secure ends of the first wire and the second wire. The first wire is arranged parallel to the second wire along a longitudinal axis. The apparatus also includes a gripping mechanism configured to grip central portions of the first and second wires such that inner surfaces of the central portions of the first and second wires are in contact with one another and a rotating mechanism configured to rotate the gripping mechanism, thereby twisting the first and second wires about one another. A method of twisting a first wire about a second wire is also presented herein.

A binding machine including a wire feeding unit, a cutting unit, and a binding unit. The cutting unit includes a pair of blade parts that sandwiches and cuts a first wire and a second wire therebetween, a first butting portion against which the first wire is butted by relative movement of the pair of blades, and a second butting portion against which the second wire is butted. The cutting unit has a step portion provided between the first butting portion and the second butting portion by recessing the second butting portion with respect to the first butting portion along a moving direction of the pair of blade parts. The cutting unit has a regulation portion that regulates movement of the first wire in a direction from the first butting portion toward the second butting portion and provided between the first butting portion and the step portion.

A binding machine including a wire feeding unit, a cutting unit, and a binding unit. The cutting unit includes a pair of blade parts that sandwiches and cuts a first wire and a second wire therebetween, a first butting portion against which the first wire is butted by relative movement of the pair of blades, and a second butting portion against which the second wire is butted. The cutting unit has a step portion provided between the first butting portion and the second butting portion by recessing the second butting portion with respect to the first butting portion along a moving direction of the pair of blade parts. The cutting unit has a regulation portion that regulates movement of the first wire in a direction from the first butting portion toward the second butting portion and provided between the first butting portion and the step portion.

A reinforcing bar binding machine (1A) includes a magazine (2A) in which a wire (W) is housed, a curl guide unit (5A) that winds the wire (W) around a reinforcing bar (S), a wire feeding unit (3A) that feeds the wire (W), and a binding unit (7A) that twists crossing portions between one end and the other end of the wire (W) wound around the reinforcing bar (S). The wire feeding unit (3A) is configured such that a second displacement member (36) for displacing a second feed gear (30R) is located behind a second feed gear (30L) and provided between the second feed gear (30L) and a handle portion (11A).

A reinforcing bar binding machine (1A) includes a magazine (2A) in which a wire (W) is housed, a curl guide unit (5A) that winds the wire (W) around a reinforcing bar (S), a wire feeding unit (3A) that feeds the wire (W), and a binding unit (7A) that twists crossing portions between one end and the other end of the wire (W) wound around the reinforcing bar (S). The wire feeding unit (3A) is configured such that a second displacement member (36) for displacing a second feed gear (30R) is located behind a second feed gear (30L) and provided between the second feed gear (30L) and a handle portion (11A).

The method for binding metal wires and similar products around a first element and possibly a second element, in particular having an elongated shape, for example a reinforcing bar, includes the steps of preparing an apparatus for binding the metal wires against the first element, feeding at least one wire to the apparatus next to the first element, calendering the wire by means of a calendering assembly, cutting the wire by means of a cutting assembly, holding opposing portions of the wire by means of a binding head and binding by twisting the wire around a binding axis (A, A′).

The method for binding metal wires and similar products around a first element and possibly a second element, in particular having an elongated shape, for example a reinforcing bar, includes the steps of preparing an apparatus for binding the metal wires against the first element, feeding at least one wire to the apparatus next to the first element, calendering the wire by means of a calendering assembly, cutting the wire by means of a cutting assembly, holding opposing portions of the wire by means of a binding head and binding by twisting the wire around a binding axis (A, A′).

A tying machine may include a feeding mechanism configured to feed a tying string, a battery, and a voltage detection circuit configured to detect a voltage of the battery. The feeding mechanism may include a feeding motor to which power is supplied from the battery. The tying machine may be configured to set a duty ratio for driving the feeding motor when feeding the tying string, in accordance with the voltage of the battery detected by the voltage detection circuit.

A tying machine may include a feeding mechanism configured to feed a tying string, a battery, and a voltage detection circuit configured to detect a voltage of the battery. The feeding mechanism may include a feeding motor to which power is supplied from the battery. The tying machine may be configured to set a duty ratio for driving the feeding motor when feeding the tying string, in accordance with the voltage of the battery detected by the voltage detection circuit.