G - Physics – 10 – D
Patent
G - Physics
10
D
G10D 13/02 (2006.01) G10D 13/00 (2006.01)
Patent
CA 2154008
Disclosed is an actuator for a percussion instrument, such as a bass drum. The actuator includes a heel driven member, which handles the vertical motion of a free falling leg, and, through the motion transmitting lever, which ends with a sound initiation member, transforms it onto the bass drum face until the heel driven member reaches a blocking surface of the actuator's base. The user can initiate the percussion instrument by letting his leg to fall down from a raised position while keeping the foot toe in one place on the base. The heel driven member, after it reaches the base, is blocked, what prevents from hitting the drum face with unneces- sary big force and allows to control the dynamic of play so it does not increasetempo. The motion transmitting lever converts a vertical motion into a horizontal one as well as regulates the maximum deflection of the beater into the bass drum face and by this means controls the dynamic of play. The actuator also allows tofilter weak shots, which for some reason may not be desired.
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