Tired Roller

Details Tired Roller Tired Roller

1998-03-09

2000-08-22

Swann, J. J.

Motor vehicles

Power

Including traction motor of kind driven by noncompressible...

180308, 180 56, 180 62, B60K 1700

Patent

active

06105707&

ABSTRACT:
A tired roller is provided with a prime mover and a speed change unit of the HST type. The speed change unit includes an HST hydraulic pump of the variable displacement type driven by the prime mover and an HST hydraulic motor driven by pressure oil from the hydraulic pump, and can change a rotational speed of the hydraulic motor by varying a delivery rate of pressure oil from the hydraulic pump. Rotation of the hydraulic motor is therefore transmitted at a lower speed to a drive-axle tire train. A propeller shaft is connected to the hydraulic motor without interposition of any speed reduction mechanism, so that the propeller shaft is rotated at a high speed with a low torque. This has made it possible to form the propeller shaft smaller in diameter and hence to arrange it in a narrow space between tires in the drive-axle tire train. Further, the rotation of the hydraulic motor is reduced in speed at an output side of the propeller shaft, thereby making it possible to transmit the rotation in a state increased in rotating torque to the drive-axle tire train.

REFERENCES:
patent: 3319545 (1967-05-01), Seaman
patent: 4459875 (1984-07-01), Mann et al.
patent: 4606428 (1986-08-01), Giere
patent: 5718535 (1998-02-01), Bachle
patent: 5802931 (1996-02-01), Louis
patent: 5873427 (1997-04-01), Ferguson et al.

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