Transmission

Machine element or mechanism – Gearing – Interchangeably locked

Reexamination Certificate

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Details

C074S355000, C074S373000, C074S375000

Reexamination Certificate

active

07028570

ABSTRACT:
A transmission for a working machine including a drive transmission mechanism and a working transmission mechanism operated by swinging a shift lever is provided. The drive transmission mechanism has a key-sliding transmission mechanism axially mounted on a drive shaft. The key-sliding transmission mechanism causes a selected one of a plurality of gears rotatably mounted on the drive shaft and the drive shaft to rotate together to transmit power to drive wheels.

REFERENCES:
patent: 2718797 (1955-09-01), Gravina
patent: 2939328 (1960-06-01), Sinclair
patent: 4727768 (1988-03-01), Hayashi et al.
patent: 4827783 (1989-05-01), Yamaoka et al.
patent: 4932278 (1990-06-01), Nemoto
patent: 5109722 (1992-05-01), Hufnagle et al.
patent: 5211067 (1993-05-01), von Kaler
patent: 5592855 (1997-01-01), Weirich et al.
patent: 412308 (1971-04-01), None
patent: 60-69330 (1985-04-01), None
patent: 6043561 (1994-11-01), None

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