Transmission for self-propelled walking lawn mowers

Details Transmission for self-propelled walking lawn mowers Transmission for self-propelled walking lawn mowers

1997-02-11

1999-02-23

Luong, Vinh T.

Machine element or mechanism

Elements

Gear casings

475 83, 74417, F16H 5702, F16H 5704

Patent

active

058732870

ABSTRACT:
A transmission for self-propelled walking lawn mowers includes a casing, an input shaft inserted into an opening formed in the casing, an output shaft disposed perpendicular to the axis of the input shaft, a drive gear mounted on the input shaft, a drive gear mounted on the output shaft, a power transmission gear mechanism for transmitting drive power from the input shaft to the output shaft, and bearing structures for supporting the input shaft. The bearing structures include a lower supporting structure disposed adjacently below the lower end of the input shaft, and the lower supporting structure includes a supporting member which projects from the inner wall of the casing to a position adjacently below the lower end of the input shaft, wherein a lower-end face of the input shaft and an upper face of the supporting member are engaged to hold the input shaft at its horizontal position, thereby reducing the height of a lawn mower.

REFERENCES:
patent: 3035385 (1962-05-01), Lill
patent: 4135411 (1979-01-01), Alessio
patent: 4907401 (1990-03-01), Nemoto et al.
patent: 4932209 (1990-06-01), Okada et al.
patent: 5149311 (1992-09-01), Luijten
patent: 5156576 (1992-10-01), Johnson
patent: 5289738 (1994-03-01), Szulczewski
patent: 5505101 (1996-04-01), Curtis
patent: 5616092 (1997-04-01), Hauser et al.

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