Drum
AssigneeYamaha Corporation
InventorMakoto Kurosaki
Life of this patent
Estimating the term…
Abstract
A drum body made of bamboo. A joined board is obtained by joining a plurality of rectangular bamboo elements, which are cut out of bamboo stem, so that the top surfaces and undersurfaces of these bamboo elements are alternately inverted. A laminated board is manufactured by stacking and bonding a plurality of these joined boards, and this laminated board is rolled into a cylindrical shape so as to form the drum body with its both ends opened.
Claims7
A drum wherein a drum body thereof is formed from a bamboo material, said drum body having a cylindrical shape that is open at both ends thereof, said bamboo material comprising a single laminated board formed into said cylindrical shape and said laminated board comprises a joined board in which a plurality of bamboo elements having a rectangular shape are joined in a direction of width thereof, and lengthwise direction of the bamboo elements of rectangular shape is either parallel or vertical with reference to a depth of the drum body.
A drum wherein a drum body thereof is formed from a bamboo material having bamboo fibers provided in first direction and other bamboo fibers provided in a second direction different from said first direction.
Dependencies are inferred from the claim text.