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US 4,788,897 AGranted
Multibeat drum pedal
OwnerEric J. Kirby, Lawrence C. Smithinventors
Life of this patent
Estimating the term…
Abstract
A mechanism for producing a multiple number of drum beats from a single downward depression of a drum foot pedal. A slipping linkage is utilized to produce multiple oscillations of a shaft member during the continuous downward motion of the drum pedal. The drum mallet is attached to the oscillatory shaft and therefore produces a number of beats for each foot pedal depression.
Claims9
A drum hammer drive mechanism, comprising
- a gear configured for operative connection to a foot pedal,
- first drive means having a plurality of splines, and rotationally driven in a first direction by rotation of said gear in said first direction,
- second drive means configured for operative engagement of said splines, and rotationally driven in a first direction by rotation of said first drive means in said first direction, and
- striking means driven by the rotation of said second drive means in said first direction for striking a drum,
- first spring bias means for biasing said gear against rotation in said first direction, and
- second spring bias means for biasing said second drive means against rotation in said first direction, wherein
- said second drive means is driven through engagement of said second drive means within splines of said first drive means, and
- rotation of said first drive means in said first direction causes said second drive means to disengage said splines after partial rotation of said second drive means, wherein
- said second spring means causes said second drive means to rotate a predetermined distance opposite to said first direction upon said disengagement of said second drive means from said splines, and
- third spring bias means for biasing said second drive means into engagement with said splines, wherein said third spring means causes said second drive means to re-engage said splines after said opposite rotation of said second drive means.
7 more elements
A drum pedal assembly, comprising;
- a foot operated pedal,
- a gear,
- direct linkage connecting said foot pedal and said gear, wherein depression of said pedal causes said gear to rotate in a first direction,
- first drive means having a plurality of splines, and rotationally driven in a first direction by rotation of said gear in said first direction,
- second drive means configured for operative engagement of said splines, and rotationally driven in a first direction by rotation of said first drive means in said first direction, and
- striking means driven by the rotation of said second drive means in said first direction for striking a drum,
- first spring bias means for biasing said gear against rotation in said first direction, and
- second spring bias means for biasing said second drive means against rotation in said first direction, wherein
- said second drive means is driven through engagement of said second drive means within splines of said first drive means, and
- rotation of said first drive means in said first direction causes said second drive means to disengage said splines after partial rotation of said second drive means, wherein
- said second spring means causes said second drive means to rotate a predetermined distance opposite to said first direction upon said disengagement of said second drive means from said splines, and
- third spring bias means for biasing said second drive means into engagement with said splines, wherein said third spring means causes said second drive means to re-engage said splines after said opposite rotation of said second drive means.
9 more elements
A drum hammer drive assembly, comprising:
- an actuating lever arm adapted for operative connection to a foot pedal,
- first drive means rotationally driven in a first direction by movement of said actuating lever in said first direction,
- first spring means for biasing said actuating lever against movement in said first direction,
- second drive means rotationally driven in a first direction by rotation of said first drive means in said first direction,
- second spring means for biasing said second drive means against rotation in said first direction, and
- striking means attached to said second drive means and driven in a first direction by rotation of said second drive means in said first direction,
- said second drive means being driven by said first drive means through a releasable engagement linkage, wherein upon rotation of said striking means through a drum striking arc of predetermined length, said releasable engagement linkage disengages said first and second drive means and said second spring means causes said second drive means to return rotate in a rotational direction opposite to said first rotational direction upon disengagement of said releasable linkage.
4 more elements
Dependencies are inferred from the claim text.