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AssigneeTechnoboost
InventorsMichael WASCHEUL, Aurelien RENAULT, Marc GIANNONI
Estimating the term…
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).
A synchronizer for a gearbox comprising at least one secondary shaft, said synchronizer comprising a hub rotationally coupled to said secondary shaft, and a sleeve comprising internal splines and suitable for being translated with respect to said hub, so that the internal splines of the hub are closely coupled to dogs of an idling pinion, being involved in the definition of at least one ratio, characterized in that said synchronizer further comprises a flange, comprising a sub-hub, fixedly secured to said secondary shaft, and provided with external splines, and in that said hub comprises internal splines, capable of cooperating with said external splines of said sub-hub, to allow a translation with respect to the sub-hub, capable of ensuring said narrow coupling of said inner splines of the sleeve to said dogs with a minimum translational margin, regardless of dimensional manufacturing variations of said sleeve and idling pinion.
A vehicle comprising a gearbox according to claim 6.
Dependencies are inferred from the claim text.