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    • 104. 发明授权
    • Bamboo drum
    • 竹鼓
    • US5981858A
    • 1999-11-09
    • US97462
    • 1998-06-15
    • Jun-Chan Jeng
    • Jun-Chan Jeng
    • G10D13/02G10D13/00
    • G10D13/028
    • A bamboo drum has a hollow cylinder formed of a plurality of ring bodies stacked together. The ring bodies are made of bamboo sheets and provided respectively along the upper ring portion thereof with a protruded circular rib, a circular groove, and an inclined circular surface for enabling the ring bodies to be stacked together to form the hollow cylinder without voids. Each of the ring bodies has two end portions of various forms to provide the two end portions with the contact areas capable of fusing securely the two end portions of the ring body.
    • 竹鼓具有由堆叠在一起的多个环体形成的中空圆筒。 环体由竹片制成,分别沿其上环部分设置有突出的圆形肋,圆形槽和倾斜圆形表面,以使得环体能够堆叠在一起以形成没有空隙的中空圆柱体。 每个环体具有各种形式的两个端部,以使得两个端部能够牢固地固定环体的两个端部的接触区域。
    • 108. 发明授权
    • Cylindrical drum shell
    • 圆筒鼓壳
    • US3680425A
    • 1972-08-01
    • US3680425D
    • 1970-11-27
    • C F & MARTIN CO
    • MORENA JOHNGRAUSO ROBERT N
    • G10D13/02G10D3/00
    • G10D13/028
    • Improved snare, bass and Tom-Tom drums are provided by forming the shell thereof from glass fibers that are bonded together with a resinous material. The glass fibers may be continuous and helically wound over a mandrel or they may be short randomly chopped fibers that form a mat which is applied either to the exterior of a male mandrel or to the interior of a female mold. The method of this invention also contemplates wrapping a band about the resin bonded fibers in order to provide a smooth outer surface. Further, it is also contemplated to provide axially spaced, annular rings at the ends of the shells for providing structural rigidity.
    • 通过用与树脂材料结合在一起的玻璃纤维形成壳,提供改良的圈套,低音和汤姆汤鼓。 玻璃纤维可以是连续的并且螺旋地缠绕在心轴上,或者它们可以是形成垫子的短随机短切纤维,其被施加到阳心轴的外部或者施加到阴模的内部。 本发明的方法还考虑围绕树脂粘合的纤维缠绕带以提供光滑的外表面。 此外,还设想在壳的端部处提供轴向间隔开的环形环,以提供结构刚性。