Resilient mechanism for shifting gears

Details Resilient mechanism for shifting gears Resilient mechanism for shifting gears

1979-11-29

1981-11-10

Herrmann, Allan D.

Machine element or mechanism

Control lever and linkage systems

Multiple controlled elements

74470, 74701, 192109A, 267155, 403120, G05G 916

Patent

active

042991340

ABSTRACT:
Resilient shift mechanism for shifting gears in a transaxle, transmission, gear box, or the like is provided. In a gear drive for a small vehicle such as a garden tractor or a self-propelled lawn mower, it is often difficult to disengage a shift dog from a gear when under a heavy load. In some instances, the shift mechanism, such as a shifter fork, can be distorted, bent, or broken. The new shift mechanism includes a shifter fork for moving a shift dog or clutch collar and a resilient shift lever for moving the shifter fork. The lever has a resilient leg which yields when the shift lever attempts to move the shift dog while the transmission is under a heavy load. The resilient shift lever, being stressed, will subsequently shift the shift dog when the load has diminished.

REFERENCES:
patent: 1222971 (1917-04-01), Moe
patent: 1594571 (1926-08-01), Sleeper
patent: 1633695 (1927-06-01), Colley
patent: 2621533 (1952-12-01), Schotz
patent: 2754692 (1956-07-01), Russell
patent: 4170149 (1979-10-01), Koegel

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