US 12,464,982 B2
Baler and a rotary drive transmission for a baler
Jan Johannes Judocus Hol, Boekel (NL); Dionisius Cornelis Maria Akkermans, Roosendaal (NL); and Sjir Hendrik Margo Vaessen, Eindhoven (NL)
Assigned to Kuhn-Geldrop BV, Geldrop (NL)
Filed by Kuhn-Geldrop BV, Geldrop (NL)
Filed on Oct. 20, 2022, as Appl. No. 17/969,762.
Claims priority of application No. 2115147 (GB), filed on Oct. 21, 2021.
Prior Publication US 2023/0130412 A1, Apr. 27, 2023
Int. Cl. A01F 15/08 (2006.01); A01F 15/04 (2006.01); B30B 9/30 (2006.01)
CPC A01F 15/0841 (2013.01) [A01F 15/042 (2013.01); B30B 9/3003 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A rotary drive transmission for a baler comprising a bale chamber, a plunger that compresses bale material in the bale chamber, a drive mechanism that drives reciprocating movement of the plunger, and a flywheel connected to a rotary input of the drive mechanism, the rotary drive transmission comprising:
a rotary drive part,
a rotary driven part that drives rotation of the flywheel, and
a torsional drive transfer device that transfers rotary drive between the rotary drive part and the rotary driven part,
wherein the torsional drive transfer device comprises a drive input element and a drive output element that are connected to one another and configured for relative rotation about a rotary axis, and a resilient drive transfer element that interconnects the drive input element and the drive output element,
wherein the torsional drive transfer device is configured to allow limited relative rotation of the drive input element relative to the drive output element in a drive direction against a resilient reaction force provided by the resilient drive transfer element thereby providing limited relative rotation in the drive direction between the rotary drive part and the rotary driven part against the reaction force provided by the resilient drive transfer element,
wherein the torsional drive transfer device is located in a driveline between the rotary drive part, which is connectable to a power take off of a tractor, and the rotary driven part, which comprises the flywheel, and
wherein the torsional drive transfer device is configured to allow limited relative rotation between the rotary drive part and the rotary driven part only when a torque applied to the drive part exceeds a predetermined minimum value.