Tunable drum

G - Physics – 10 – D

Patent

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Details

G10D 13/02 (2006.01)

Patent

CA 2120546

A tunable drum is provided, having drum body comprised of first and second parts adjustable relative to each other such that the first part may be moved either towards or outwardly away from the second part. The skin of the drum is fastened to the second part of the drum body and by adjusting the position of the first part relative to the second part, the tension of said skin across the body may be varied, and the pitch of the drum varied. The first part of the body may comprise an upper rim of the body, with the rim being moveable either upwardly or radially outwardly relative to the second part of the body. In the latter case, the rim is provided with an expansion joint to permit the outward expansion of the rim. The rim is adjusted by means of an array of threaded rotatable bolts extending through the body to engage the rim and push it outwardly when the bolts are rotated.

ambour accordable dont le corps comporte une première et une deuxième parties ajustables l'une dans l'autre de sorte que la première partie peut être rapprochée ou éloignée de la deuxième. La peau du tambour est fixée sur la deuxième partie du corps du tambour et en ajustant la position de la première partie par rapport à la deuxième, la tension de la peau sur le corps et le ton du tambour peuvent être modifiés. La première partie du corps peut comporter un rebord sur sa partie supérieure, ledit rebord pouvant être déplacé vers le haut ou radialement par rapport à la deuxième partie du corps. Dans ce dernier cas, le rebord comporte un joint de dilatation qui permet l'expansion du rebord. Le rebord est ajusté par une série de boulons filetés rotatifs qui passent dans le corps pour s'engager dans le rebord. Le rebord est poussé vers l'extérieur lorsqu'on tourne les boulons.

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