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    • 29. 发明授权
    • Key structure
    • 关键结构
    • US07394004B2
    • 2008-07-01
    • US11378479
    • 2006-03-20
    • Shigeru MuramatsuToshiro Sakai
    • Shigeru MuramatsuToshiro Sakai
    • G10C1/00
    • B29C45/16B29C45/1671B29L2031/722B29L2031/758B44F9/06G10C3/125
    • A key structure includes a top plate which is formed by laminating a half-transparent resin surface layer member on a resin bottom side member using two-color injection molding, and the top plate is secured on a wooden key base. A plurality of concave grooves and protrusions, and a plurality of protrusion and troughs are respectively formed together in straight lines in the long direction of the key structure on a rear face of the surface layer member and a top face of the rear side member. Outside light is reflected from the top ends of the protrusion and the troughs, whereby a faint and natural vertically-striped pattern, which corresponds to a concave-convex part formed by the concave grooves and the protrusions, is perceived as resembling an edge grain of ivory.
    • 关键结构包括通过使用双色注射成型将半透明树脂表面层构件层压在树脂底侧构件上而形成的顶板,并且顶板固定在木质键座上。 多个凹槽和突起以及多个突起和槽分别沿着表面层构件的后表面上的键结构的长方向的直线和后侧构件的顶面一起形成在一起。 外部的光从突起和谷的顶端反射,由凹槽和突起形成的凹凸部对应的微弱自然的垂直条状图案被认为类似于边缘颗粒 象牙。