Propelling drive transmission structure for walking operator typ

Details Propelling drive transmission structure for walking operator typ Propelling drive transmission structure for walking operator typ

1987-11-09

1989-03-14

Weiss, John

Harvesters

Motorized harvester

With selective control of drive means

56 172, 56 169, 74417, 464139, A01D 3474

Patent

active

048115525

ABSTRACT:
A propelling drive transmission structure for a walking operator type lawn mower having vertically adjustable front and rear wheels and a main frame supporting a cutting blade housing between the front and rear wheels. The transmission structure comprises a change speed device disposed above a rear axle for changing speed of engine drive for transmission to the rear axle. The change speed device includes an output shaft operatively connected to the rear axle through a rotary shaft and bevel gears. The rotary shaft is slidable relative to the output shaft to vary spacing between the output shaft and the rear axle.

REFERENCES:
patent: 3014546 (1961-12-01), Banka
patent: 4183229 (1980-01-01), Johansson
patent: 4212364 (1980-07-01), Dobberpuhl
patent: 4554780 (1985-11-01), Umeno et al.
patent: 4582503 (1986-04-01), Sherman
patent: 4716717 (1988-01-01), Ogano

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