Patent · US Active

Pruning shears

US10091946B2 · kind B2 · utility

1Cited by

28References

17Claims

0Family size

Assignee

Fiskars Finland Oy Ab · FI

Inventors

Olavi Linden · Karis, FI
Jan Lindén · Helsinki, FI

Key dates

Filing date	Sep 26, 2016
Grant date	Oct 9, 2018
Priority date	—
Expiry date	Nov 11, 2036

Classification

Technology area (CPC A)Human Necessities
CPC primaryA01G3/0255
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

Pruning shears include a cutting head with a spring-biased blade pivotally connected to a jaw and arranged to sever a workpiece received in a bight formed by the jaw. A drive mechanism is connected to the cutting head and an elongate housing is connected to the drive mechanism. The drive mechanism includes a rotation preventer for preventing rotation of a second pulley in relation to the drive mechanism when a drawing torque is applied to the second pulley. The drawing torque is greater than a threshold torque, resulting in a second pulley being stationary in relation to the drive mechanism and the first pulley rotating in relation to the drive mechanism.

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