US 12,024,407 B2
Drum/ring gear assembly for winches with geared transmission
Alessandro Vighi, Reggio Emilia (IT); Giovanni Mariech, Reggio Emilia (IT); Orazio Amatucci, Reggio Emilia (IT); Sergio Artioli, Reggio Emilia (IT); and Fabrizio Federici, Reggio Emilia (IT)
Assigned to DANA MOTION SYSTEMS ITALIA S.R.L., Reggio Emilia (IT)
Filed by Dana Motion Systems Italia S.R.L., Reggio Emilia (IT)
Filed on Sep. 3, 2021, as Appl. No. 17/446,948.
Application 17/446,948 is a continuation of application No. 16/632,280, granted, now 11,148,918, previously published as PCT/EP2018/069407, filed on Jul. 17, 2018.
Claims priority of application No. 102017000080867 (IT), filed on Jul. 18, 2017.
Prior Publication US 2021/0395054 A1, Dec. 23, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. B66D 1/00 (2006.01); B66D 1/22 (2006.01)
CPC B66D 1/22 (2013.01) 18 Claims
OG exemplary drawing
 
1. A drum and ring gear assembly for winches with geared transmission which comprises:
a drum that is substantially cylindrical and adapted to be actuated rotationally about a longitudinal axis of the drum; and
a ring gear accommodated substantially coaxially inside said drum, where the drum and the ring gear are mutually associated so as to rotate integrally about said longitudinal axis by virtue of a connecting means, and wherein said connecting means is of a positive and/or a direct friction type,
wherein said connecting means comprises at least one first recess, associated with an external surface of said ring gear, and at least one second recess, associated with an internal surface of said drum and facing said at least one first recess, so as to define at least one seat for accommodation of at least one corresponding obstacle element.