One touch drum tuning system
OwnerDavid Michael Spinazzolainventor
Life of this patent
Estimating the term…
Abstract
A cam operated drum tuning system which is rotatable clockwise or counterclockwise to tunes a musical drum. A cam ring mechanism employs multiple helical tracks. A removable radius plate and tool facilitates rotation. The tuning system may be attached directly to drum lugs, to a retrofit ring attached to the lugs, or to a full floating I or II framework which use edge or full floater rings, and/or adjustable pull rods to connect the top and/or bottom tuning systems so that nothing need contact the drum shell. Eccentric micro tuners adjust the rim rollers which ride on the inner hoop, which has a lip on the underside to add overlap. Elevators are used to raise and/or lower the cam ring to align it perpendicular to the bearing edge of the drum shell.
Claims13
A drum tuning system and apparatus comprising:
- an actuator ring system comprising three overlapping annular members, including a rotating actuator ring, an inner hoop and a cam ring, the actuator ring member to adjust the pitch of a musical drum when fitted near the open end of a drum shell;
- said rotating actuator ring being the largest in diameter of the three annular members and rotatable about the other two ring members to facilitate a camming action and having a cross section profile having a thicker mid-section tapering smaller at the top and the bottom;
- a multiplicity of evenly spaced vertical bosses projecting upward along the horizontal surface near its mid-section;
- said vertical bosses wider and thicker at the base tapering down smaller on the top and having holes for accepting inward facing rim rollers and axles;
- said rotating actuators lower tapered vertical wall having holes for accepting inward facing cam rollers and axles;
- wherein clockwise and counterclockwise movement of said rotating actuator ring simultaneously cause said rim rollers to bear down on an inner hoop while said cam rollers engage a cam ring to draw the inner hoop and cam ring closer together or move them further apart;
- and wherein said camming action alters the tension on the drum head when fitted over the open end of a drum shell thereby tuning the drum.
A full floating framework for adjusting the pitch of the drum without any hardware bolted the drum shell;
- said framework comprised of a rotation actuated drum tuning system, for the upper drum head adjusting a single ring rotating about the upper drum hoop and drum head, an intermediate annular member, and a multiplicity of pull rods;
- said annular member having a multiplicity of evenly spaced holes to attach said tuning system and downward extending pull rods;
- said pull rods being shorter than the length of the drums shell;
- said framework used to sandwich a drum shell between its opposite ends;
- said pull rods used to connect a an annular member to retain the lower drum head and drum shell.
Dependencies are inferred from the claim text.