| 摘要 |
1. A binding apparatus for round bale presses, of the type comprising a twine guide arm (15) mounted pivotally on the press so as to be able to perform a sweep movement in front of the intake opening (5) for the crop products to pass into the press, said arm being supplied with twine (22) from a twine store and guiding the twine to a position in front of said intake opening, said arm being retained in a rest position during the operation of forming the bale (8) in the chamber of the press and being subjected to the action of a resilient return member (17) for return to the starting position by a rapid movement when the binding operation is initiated, entrainment members (19-21; 41, 42; 68, 69) being provided to displace said arm with a slow transverse sweep movement in front of said intake opening for the binding travel, means providing for actuating and stopping said entrainment members, characterised in that said arm (15, 16) is connected by a disengageable unidirectional-action coupling means (18) to said entrainment members (19-21; 41, 42; 68, 69) which are irreversible, said arm being maintained in the rest position at the end of its travel by means of the irreversibility of said entrainment members while triggering of the rapid movement of the arm from its rest position to its starting position is caused by actuation of a disengagement or unlocking member (14) of the disengageable coupling means. |
