公开(公告)号：US20170152901A1

公开(公告)日：2017-06-01

申请号：US15321013

申请日：2015-06-24

Applicant: Technoboost

Inventor： Michael WASCHEUL ,  Aurelien RENAULT ,  Marc GIANNONI

IPC: F16D23/06 ,  F16H3/091

CPC classification number: F16D23/06 ,  F16D23/04 ,  F16D2023/0631 ,  F16D2023/0637 ,  F16D2023/0675 ,  F16H3/091

Abstract: A gearbox (BV) comprises a secondary shaft (AS) provided with a synchromesh (SB) comprising a flange (FL) comprising a sub-hub (SM) fixedly secured to the secondary shaft (AS) and provided with external splines (CE3), a hub (MO) comprising internal splines (CI1) collaborating with the external splines (CE3) of the sub-hub (SM) to allow translational movement with respect to the latter (SM), and a sleeve (MA) that can undergo a translational movement with respect to the hub (MO) so that the internal splines (CI2) thereof are closely coupled to dogs (CR) of an idling pinion (PF1). This translational movement of the hub (MO) with respect to the sub-hub (SM) guarantees close coupling of the internal splines (CI2) of the sleeve (MA) with the dogs (CR) with a minimal margin for translation, irrespective of dimensional variations in the manufacture of the sleeve (MA) and idling pinion (PF1).