CHAINSAW BRAKE ARRANGEMENT

摘要

A chainsaw having a brake arrangement comprising: - a kickback brake drum (10) arranged to rotate together with a drive sprocket driving a saw chain of a chainsaw, - a kickback brake for quickly stopping the saw chain if at least one of at least one kickback actuator (7) is actuated, the kick back brake including a kickback brake band (11) extending around the kickback brake drum (10) and means for tightening the kickback brake band (17-19, 22) around the kickback brake drum (10), and; - a coasting brake weaker than the kickback brake being arranged to brake the saw chain (2) unless a coasting actuator of the chainsaw is actuated, the coasting brake includes a coasting brake band extending around a coasting brake drum (10) arranged to rotate together with the drive sprocket (37), and means for tightening the coasting brake band (20, 22, 23) around the coasting brake drum, wherein the coasting brake band is either at least one longitudinally slitted portion (1 Ib) of the kickback brake band or a separate brake band.