发明名称 Laminated base element for a wristwatch using hot melt adhesive foil
摘要 The invention relates to a base element for a wristwatch and in particular a base element in the form of a laminate composed of two plates and a plastic foil. According to the invention, spacer elements, in particular in the form of a non-woven fiber fleece, are embedded in the plastic foil. This will avoid the plastics material being squeezed out laterally along the edges of openings and the like during heat-sealing of the plates with the plastic foil and, at the same time, a high degree of accuracy regarding the thickness of the finished base element will be achieved.
申请公布号 US4603978(A) 申请公布日期 1986.08.05
申请号 US19840624171 申请日期 1984.06.25
申请人 TIMEX CORPORATION 发明人 BRENK, FRITZ
分类号 G04B29/00;(IPC1-7):G04B37/00 主分类号 G04B29/00
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