Acoustic diaphragm
AssigneeYamaha Corporation
InventorsTomoyuki Kageyama, Kunio Suzuki
Life of this patent
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Abstract
An acoustic diaphragm comprising two or more laminated composite sheets, being formed into a shape with a curved surface. The composite sheet is made up of sliced wood and nonwoven fabric cloth consisting of adhesive resin, being stuck on backside of the sliced wood. Thus, it is capable of forming a three-dimensional shape, making use of natural wood characteristics, and improving unevenness of natural material properties. In one preferred embodiment, the diaphragm is woven of slit wood or other article forming the weft and synthetic or inorganic fibers forming the warp.
Claims7
An acoustic diaphragm comprising a combined textile formed into a shape with a curved surface, wherein said combined textile comprises weft elements interwoven with warp elements, the weft elements being comprised of sliced slit wood and the ward elements being comprised of synthetic fiber.
An acoustic diaphragm comprising a combined textile formed into a shape with a curved surface, wherein said combined textile comprises weft elements interwoven with warp elements, the weft elements being comprised of sliced slit wood and the warp elements being comprised of inorganic fiber as the warp.
An acoustic diaphragm comprising a combined textile formed into a shape with a curved surface, wherein said combined textile comprises weft elements interwoven with warp elements and sliced slit wood elements are used as at least one of the weft and the warp elements.
Dependencies are inferred from the claim text.