Improvements to vehicle transaxles for transmission on one or more axles with special speed reduction for walking in varied terrain.

摘要

1,107,554. Change-speed gearing. REGIE NATIONALE DES USINES RENAULT. 10 June, 1965 [11 June, 1964; 5 Jan., 1965], No. 24677/65. Heading F2D. A vehicle transmission comprises main and auxiliary-reduction gears with first and second output axle drive shafts, provision being made for normal drive through the main gear to the first shaft and for drive to both shafts with or without speed reduction through the auxiliary gear. As shown the main gear has an input shaft 8 within a hollow shaft 1 carrying constant mesh pinions driving the first axle drive shaft 2, the second drive shaft 21 being connected by pinions 17, 18, 20 to the shaft 2. The auxiliary reduction gear comprises pinions 11, 12 on the shafts 1, 8 meshing a compound pinion 13, 14 and operated by a dog clutch member 9 on the shaft 1. As shown the arrangement is conditioned for normal drive between shafts 1, 2 and by engaging a second clutch 16 the pinion 17 may be locked to shaft 2 so that both shafts 2, 21 are driven without speed reduction. The reduction train is brought into action by moving clutch 9 to the left to engage pinion 12 with input shaft 8. In modifications the auxiliary gear train is of the epicyclic type and clutch 16 is mounted on shaft 21, Figs. 3, 4 (not shown), and axially movable pinions are substituted for certain of the clutches, Figs. 6-11 (not shown).