发明名称 Injection skis and their process of manufacture
摘要 Ski upper- and lower-surface constituting materials are set in position in a mold provided with a space appropriate for the dimensional distribution of the padding for the ski. The ski upper-surface constituting material is arranged so that a resin sheet of ABS resin, etc. constitutes the outer surface of ski. The inner upper surface of the upper mold piece is formed in a curved surface having, for example, grooves. A foamy resin is injected to fill the space between the ski upper and lower constituting materials. The foaming pressure raised by the foamy resin will press the resin sheet against the inner upper surface of the upper mold piece with resulting deformation of the resin sheet. Thus one may obtain a ski which is provided on its upper surface with projections.
申请公布号 US4725070(A) 申请公布日期 1988.02.16
申请号 US19860873874 申请日期 1986.06.12
申请人 KABUSHIKI KAISHA SWALLOW SKI 发明人 MARUYAMA, TETSUZO
分类号 A63C5/00;A63C5/12;A63C5/14;B29C44/16;(IPC1-7):A63C5/00 主分类号 A63C5/00
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