Abstract: A retainer unit for use in a wire binding machine in order to retain and subsequently release a wire during the tightening thereof around one or more objects. The retainer unit comprises: a wire retaining member pivotable, under the action of a press force exerted by a wire, from an advanced wire retaining position to a retracted wire releasing position; a blocking mechanism moveable from a blocking position, in which it prevents the wire retaining member from being pivoted to the wire releasing position, to a non-blocking position, in which it allows the wire retaining member to be pivoted to the wire releasing position. The blocking mechanism is arranged to move to the non-blocking position under the effect of said wire when the wire reaches a given inclination towards a wire contacting part of the wire retaining member. The invention also relates to a wire binding machine comprising several such retainer units.

Abstract: A retainer unit (1) for use in a wire binding machine in order to retain and subsequently release a wire during the tightening thereof around one or more objects. The retainer unit comprises: a wire retaining member (10) pivotable, under the action of a press force exerted by a wire, from an advanced wire retaining position to a retracted wire releasing position; a blocking mechanism (20) moveable from a blocking position, in which it prevents the wire retaining member from being pivoted to the wire releasing position, to a non-blocking position, in which it allows the wire retaining member to be pivoted to the wire releasing position. The blocking mechanism is arranged to move to the non-blocking position under the effect of said wire when the wire reaches a given inclination towards a wire contacting part (11) of the wire retaining member. The invention also relates to a wire binding machine comprising several such retainer units.