Motor vehicles – Special driving device – Portable track
Patent
1989-02-28
1990-01-16
Marmor, Charles A.
Motor vehicles
Special driving device
Portable track
180 95, 180291, 305 35R, 305 35EB, B62D 55065, B62D 55096
Patent
active
048936871
ABSTRACT:
The installation of a power train module on the frame of a track-type vehicle is simplified and noise transmisson to the frame is significantly reduced by a mounting arrangement including a pair of first elastomeric coupling devices and a pair of second elastomeric coupling devices for resiliently connecting the power train module to the main frame. The power train module has a pair of oppositely extending hollow trunnions, a wheel rotatably supported on each trunnion, an output drive train for driving each wheel, and an endless drive belt frictionally driven by each wheel. The frame has a pair of generally semicylindrical pockets which face upwardly and rearwardly and the first coupling devices are seated in the respective pockets in embracing relationship to the trunnions such that the drive wheels are elevated above the ground. The second coupling devices are connected to the frame for resisting rotational forces of the power train module about the axis of the trunnions. The power train module is easily installed at an inclined angle, and the vehicle is quiet in operation because of the noise-isolation qualities of the coupling devices and frictional contact between the wheels and the drive belts.
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Boehler A.
Caterpillar Inc.
Lanchantin, Jr. Charles E.
Marmor Charles A.
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