Document Type and Number:
Japanese Patent JPS55501139
Kind Code:
A
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 reduction 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 therebetween, and a brake (38) for braking the final drive concurrently with arranging the clutches to positively disconnect 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 reduction 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 provide a substantially direct one-to-one driving connection between the power drive and final drive.
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Application Number:
JP50139079A
Publication Date:
December 18, 1980
Filing Date:
January 26, 1979
Export Citation:
International Classes:
B62D11/08; B62D11/14; B62D55/125; F16D67/02; F16H1/46; F16H3/54; (IPC1-7): F16H3/54; B62D11/08