EP 2447022 B1 20130313 - Chain brake device for a chain saw operated by pressurised air
Title (en)
Chain brake device for a chain saw operated by pressurised air
Title (de)
Kettenbremseinrichtung für eine druckluftbetriebene Kettensäge
Title (fr)
Dispositif de frein de chaîne pour une scie à chaîne entraînée par air comprimé
Publication
Application
Priority
EP 10189385 A 20101029
Abstract (en)
[origin: EP2447022A1] The device has a saw chain movably guided into a chain guide of a chain saw. The saw chain is driven by a chain drive, which is operated with pressurized air. A brake drum (28) is connected with the chain drive, and a triggered braking unit e.g. brake band (30), lever chain (34), brake lever (36) and safety bar bracket (38), is provided by friction for braking the brake drum. A pressurized air control unit i.e. interrupter valve (42), supports a braking process by the chain drive and causes direction inversion of pressurized air direction. An independent claim is also included for a method for braking a motor-operated chain saw.
IPC 8 full level
B27B 17/08 (2006.01)
CPC (source: EP)
B27B 17/083 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2447022 A1 20120502; EP 2447022 B1 20130313; PL 2447022 T3 20130830
DOCDB simple family (application)
EP 10189385 A 20101029; PL 10189385 T 20101029