Patent ID: 6822149
Filing Date: 2004-11-23
Classification: G10D

Abstract:
A drum pulsatile for achieving agile and labor saving operation, comprising:a base laid horizontally; an anchor rack located at a front side of the base having a transverse upper rod located on the top section thereof, the upper rod being coupled with a rocking wheel which is fastened to a beater for hitting a drum; a pedal having a rear end pivotally engaged with a rear side of the base and a front end fastened to a chain which winds around the front peripheral side of the rocking wheel and has a distal end fastened to the rocking wheel to hoist the pedal in a sloped manner with a higher front end and a lower rear end; and an elastic adjustment unit located on one side of the anchor rack including: a connection head coupling on one side of the upper rod; an elastic element connected to a lower end of the connection head being extensible axially; a fastening flange extended from an outer side of the anchor rack having a vertical slot formed in the forward and rearward direction, the slot having a cavity formed on a bottom section thereof; a fastening head having a top end engaging with an adjusting nut to fasten to a bolt which has a top end engaging with the elastic element; and a movable bucking member located on the top end of the fastening head being coupled with the cavity for swinging forwards and rearwards, the movable bucking member having a fastening section located on an upper side thereof to couple with the slot of the fastening flange.