Cutlery – Cutting tools – Plural cooperating blades
Patent
1999-02-26
2000-08-01
Watts, Douglas D.
Cutlery
Cutting tools
Plural cooperating blades
30382, 56 113, 188 77W, 192 17R, A01G 3053
Patent
active
060948221
ABSTRACT:
A hedge clipper is provided that has an internal combustion engine that is to be started by hand. By means of a clutch and a gear mechanism, the engine drives cutting blades in a reciprocating manner; the cutting blades are guided and held in a cutter bar. Disposed on the output side of the clutch is a brake drum around which extends a brake band. The first end of the brake band is fixed to the housing, and the second end of the brake band is held on a pivotable brake lever that is acted upon by a brake spring that urges the brake band into engagement against the brake drum. The brake lever can be moved into an inoperative position of the band brake by a release lever against the force of the brake spring. The release lever cooperates with an adjusting cam that is disposed directly adjacent to the brake lever and in the inoperative position of the band brake forms a rest stop for the brake lever, receiving the force of the brake spring.
REFERENCES:
patent: 3776331 (1973-12-01), Gustafsson
patent: 4148173 (1979-04-01), Hoff
patent: 4416107 (1983-11-01), Hoff
patent: 4683660 (1987-08-01), Schurr
patent: 4793064 (1988-12-01), Nagashima
patent: 5305528 (1994-04-01), Garrison
patent: 5947866 (1999-09-01), Nagashima
Kramer Jochen
Lange Karl-Heinz
Prach Klaus
Schwarz Christian
Andreas Stihl AG & Co.
Watts Douglas D.
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