Apron reverse drive mechanism for a roll baling machine.

摘要

A round baler is provided comprising bale forming means (70) in the form of an apron for forming a roll bale of crop material. First drive means (96, 98, 100) are engageable to drive the apron (70) in a first direction during bale formation and are disengageable when ejecting a roll bale from the machine. Second drive means (116) including a belt (130) are provided for driving the apron (70) in a second direction during ejection of a roll bale from the machine to facilitate ejection. The belt (130) is slackened during bale formation in order to allow the apron to be driven in normal direction by the first drive means (96, 98, 100). The belt (130) is tensioned during bale ejection in order to drive the apron (70) in the reverse direction.