Structure of beater amplitude adjustment device for the pedal mechanism of a base drum

摘要

A base drum beater amplitude adjustment device including a beater holder fixed to a revolving shaft of the pedal mechanism of a base drum to hold a beater, a flywheel consisting of two opposing parts joined together by screws and driven to turn the revolving shaft back and forth, and a locating device made of a split cylinder mounted around the polygonal revolving shaft and held down by the flywheel to stop the revolving shaft from rotary motion relative to the flywheel, wherein the angular position of the beater is adjusted by loosening the screws and turning the revolving shaft relative to the flywheel.