Locking device for keyway shaft of brush cutter comprises housing that locates keyway shaft and is coupled to driven gearwheel that engages driving gearwheel

摘要

u The locking device comprises a housing (1) in which a keyway shaft (14) is located and is coupled with a driven gearwheel (13) that is engaged with a driving gearwheel (21) that is connected to a motor device. The locking device has a collar (19) with a clearance (191) and is firmly connected to the keyway shaft. The housing has a pipe support (111) that is associated with the clearance. There is a spring (32) and a pin (31) in which the pipe support is located. The pin is gripped through the spring with the spring operating on the pin. The pin is returnable to the clearance.