Transmission control for self-propelled implement

Details Transmission control for self-propelled implement Transmission control for self-propelled implement

1989-02-10

1990-04-10

Braun, Leslie A.

192 clutches and power-stop control

Clutches

Plural clutch-assemblage

192 487, 56 118, 474114, 474116, F16D 2108

Patent

active

049152033

ABSTRACT:
A drive wheel control for a walk-behind self-propelled implement, such as a lawn mower. The control activates sequentially a transmission ball clutch and then a V-belt drive to provide positive and gradual drive wheel start up. Disengagement of the ball clutch allows the drive wheels to freewheel and permits the operator to easily move the mower backwardly as when trimming around hedges and bushes. The control includes a pair of links pivotally connected, with one link rigidly mounted to the transmission. Movement of a single control cable connected to one link initially activates the ball clutch and then causes rocking movement of the other link and the transmission to engage the V-belt drive.

REFERENCES:
patent: 2722281 (1955-11-01), Falkenberg
patent: 4212141 (1980-07-01), Miyazawa et al.
patent: 4214641 (1980-07-01), Hauser
patent: 4689939 (1987-09-01), Seyerle
"21-Inch Rotary Walk Behind Mower (1989)", John Deere Horicon Works, PC-2264, p. 40-12, 16 Dec. 1988.
"21-Inch, 2 Cycle Rotary Walk Behind Mower", John Deere Horicon Works, PC-2096, pp. 20-13 to 20-17, 14 Apr. 1988.

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