F - Mech Eng,Light,Heat,Weapons – 16 – D
Patent
F - Mech Eng,Light,Heat,Weapons
16
D
305/43
F16D 67/02 (2006.01) B62D 11/08 (2006.01) B62D 11/14 (2006.01) B62D 55/125 (2006.01) F16H 1/46 (2006.01) F16H 3/54 (2006.01)
Patent
CA 1105529
-13- GEARED STEERING MEANS Abstract A geared steering clutch mechanism (18) for use in a vehicle having left and right side propelling devices (11,12), such as tracks, a power drive (16), and a final drive (15) connecting the power drive to the respective left and right propelling devices. The steering clutch mechanism includes a first clutch (24) selectively operable to connect the power drive to the associated final drive to provide a high speed connection therebetween, a speed re- duction gear assembly (55,56,58), a second clutch (45) selectively operable to connect the power drive to the associated final drive through the speed reduction gear assembly to provide a reduced speed connection therebe- tween, and a brake (38) for braking the final drive con- currently with arranging the clutches to positively dis- connect the power drive from the final drive. The final drive may be a multispeed drive so that the use of the clutch mechanism provides a two-time multiplication of the number of available output speeds as a function of the selective operation of the clutches. The speed reduc- tion gear assembly may include a planetary gear (56) in meshing engagement with a sun gear (55) connected to the second clutch. The first clutch may be arranged to pro- vide a substantially direct one-to-one driving connection between the power drive and final drive.
337969
Hedgcock Richard L.
Whitehurst Gerald E.
Caterpillar Tractor Co.
Kirby Eades Gale Baker
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