Drum with shell less susceptible to influence from drum stand
AssigneeYamaha Corporation
InventorToshinori Yamashita
Life of this patent
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Abstract
A drum comprises a shell defining a hollow space extending along a predetermined direction, a head stretched over the hollow space, and a supporting mechanism provided between the shell and a drum stand. The drum stand is affixed to the shell at a predetermined position. Vibrations take place in the shell upon beating the head. The predetermined position is matched with an area where the vibrations minimize the amplitude thereof so that the beats are less susceptible to influence from the supporting mechanism.
Claims10
A drum comprising:
- (a) a shell defining a hollow space;
- (b) a head stretched over said hollow space;
- (c) a fastening mechanism affixing said head to said shell, for causing resonant vibrations to take place in said shell in the presence of vibrations of said head when said head is beaten, wherein said head transfers a force of a beat to said shell so as to produce forced vibrations in said shell, wherein said resonant vibrations have nodal lines shared with said forced vibrations, and wherein said fastening mechanism is affixed to said shell at a first predetermined location on at least one of said nodal lines;
- and
- (d) a supporting mechanism provided between said shell and a drum stand, and affixed to said shell at a second predetermined location on any one of said nodal lines.
A method of manufacturing a drum less sensitive to influence from a drum stand, the method comprising the steps of:
- forming a shell to define a hollow space;
- stretching a head over said hollow space;
- fastening said head to said shell at a first predetermined location on at least one of a plurality of nodal lines such that resonant vibrations take place in said shell in the presence of vibrations of said head when said head is beaten, wherein said head transfers a force of a beat to said shell so as to produce forced vibrations in said shell, wherein said resonant vibrations have said nodal lines shared with said forced vibrations;
- and
- supporting said shell by a drum stand affixed at a second predetermined location on any one of said nodal lines.
Dependencies are inferred from the claim text.