Patent · US Expired

Hedge clippers

US6094822A · kind A · utility

4Cited by

7References

18Claims

0Family size

Assignee

Andreas Stihl AG & Co. KG · DE

Inventors

Karl-Heinz Lange · Bünde, DE
Klaus Prach · Waiblingen, DE
Christian Schwarz · Waiblingen, DE
Jochen Kramer

Key dates

Filing date	Feb 26, 1999
Grant date	Aug 1, 2000
Priority date	—
Expiry date	Feb 26, 2019

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16D2121/16
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.