Handle for use in e.g. trimmer, has handle pipe reinforced by reinforcement unit on pipe at locations of high dynamic vibration-caused deformation energy, and resonant frequency is detuned outside excitation frequency range

摘要

The handle has a handle pipe (1) reinforced by a reinforcement unit (4) locally arranged on the handle pipe at various locations of high dynamic vibration-caused deformation energy. The unit is reinforced by stringers and rib units. The unit reinforcement unit is arranged such that a resonant frequency of a vibration system is detuned outside an excitation frequency range of working tool under operating conditions. An independent claim is also included for a working tool comprising a handle.