Harvesters – Motorized harvester – Having driven means for handling or treating crop
Patent
1982-09-09
1984-08-28
Hirsch, Paul J.
Harvesters
Motorized harvester
Having driven means for handling or treating crop
56 167, 56364, 56400, A01D 706
Patent
active
044675917
ABSTRACT:
An improved rotor comb construction (and method of assembly) for a power lawn rake has a plurality of spring tines axially stacked along a tubular rotor shaft. Each of the tines has a retention coil portion and a working coil portion spaced therefrom. The retention coil portion frictionally engages the outer surface of the rotor shaft. The working coil portion has a radially-extending ground-engaging element. A radially-inturned end of the retention coil portion is received in a respective radial hole in the shaft, thereby keying the tines to the shaft for conjoint rotation. Each hole in the rotor shaft is displaced circumferentially from its adjacent hole, preferably by an angle .theta. which equals 360 degrees divided by the number of holes. With this construction, the holes and hence the spring tines are arranged in a substantially uniform helical formation about the axis of the rotor shaft.
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Black & Decker Inc.
Hirsch Paul J.
Sherer R. B.
Weinstein H.
Yocum Charles E.
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