Harvesters – Motorized harvester – With selective control of drive means
Patent
1992-01-21
1993-03-23
Bagnell, David J.
Harvesters
Motorized harvester
With selective control of drive means
56 118, 74480R, A01D 6900, A01D 7520
Patent
active
051953072
ABSTRACT:
In a walk-behind power lawn mower with a propelling mechanism and a blade brake clutch, an improved control system. A preferred embodiment includes a substantially U-shaped control arm (34), pivot shaft (36, 38) operatively connecting control arm (34) to handlebar (28) wherein the pivot shafts (36, 38) establish a pivot axis. The preferred embodiment also includes a first element (48) pivotally connected to the handlebar (28) and operatively connected to the propelling mechanism and a second element (58) pivotally connected to the handlebar (28) and operatively connected to the blade brake clutch (16) wherein the first element (48) is rotatinally displaced and the propelling mechanism is engaged when the control arm (34) is generally rotated about the pivot axis and wherein the first and second elements (48, 58) are rotationally displaced and the propelling mechanism and blade brake clutch (16) are engaged when the control arm (34) is first generally displaced axially along the pivot axis and then generally rotated about the pivot axis.
REFERENCES:
patent: 4212141 (1980-07-01), Miyazawa et al.
patent: 4538401 (1985-09-01), Takamizawa et al.
patent: 4747256 (1988-05-01), Sadakane
patent: 4882897 (1989-11-01), Oshima et al.
patent: 4932192 (1990-06-01), Ishimaru
The Toro 21" Recycler mower operator's manual, form number 3314-286 revision B, copyright 1990 to The Toro Company, p. 6.
The Lawn-Boy operator's manual, part number 613952, copyright 1989 to Lawn-Boy Inc., section CS1BSN, pp. 15 and 16.
Friberg Nathan J.
Thorud Richard A.
Bagnell David J.
The Toro Company
Trevarthen Donald S.
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