公开(公告)号：USD303270S

公开(公告)日：1989-09-05

申请号：US858497

申请日：1986-05-01

申请人： C. William Kaman, II

设计人： C. William Kaman, II

公开(公告)号：US4429608A

公开(公告)日：1984-02-07

申请号：US285070

申请日：1981-07-20

申请人： Charles H. Kaman ,  C. William Kaman, II

发明人： Charles H. Kaman ,  C. William Kaman, II

IPC分类号： G10D1/00 ,  G10D3/02

CPC分类号： G10D1/005 ,  G10D3/02

摘要： A molded plastic guitar top has a sounding board with a circular sound hole located between its upper and lower ends. A plurality of integral circular reinforcing ribs concentrically arranged relative to the sound hole, project from the inner surface of the sounding board. Integral rectilinear ribs which intersect the circular ribs extend generally longitudinally of the guitar top and diverge from the circular ribs and relative to each other in the direction of the lower end of the guitar top. An integral liner projects from the inner surface of the sounding board and extends generally along the outer marginal portion of the sounding board. The guitar top is molded from thermosetting plastic sheet molding compound which comprises 40% glass and 60% resin. The sounding board portion of the top essentially comprises a mat of random glass fibers ranging in length from three inches to two feet. The reinforcing ribs or braces are formed by random chopped glass fibers not greater than one-half inch in length. The guitar top may include an integral bridge which projects from the outer surface of the sounding board and which comprises random chopped glass fibers approximately one inch in length.

摘要翻译： 模制塑料吉他顶部具有位于其上端和下端之间的具有圆形音孔的探测板。 多个整体的圆形加强筋相对于声孔同心地布置，从探测板的内表面伸出。 与圆形肋条相交的整体直线肋肋大体纵向延伸到吉他顶部，并且从吉他顶部的下端方向相对于圆形肋条相互分开。 整体衬垫从探测板的内表面突出，并且大致沿着探空板的外边缘部分延伸。 吉他顶部由热塑性塑料片模塑料成型，其中包含40％玻璃和60％树脂。 顶部的探测板部分基本上包括长度为3英寸至2英尺的随机玻璃纤维垫。 加强肋或支架由长度不大于1/2英寸的随机短切玻璃纤维形成。 吉他顶部可以包括从探测板的外表面突出并且包括长度大约一英寸的随机短切玻璃纤维的整体桥。