发明名称 Watch
摘要 A resilient member for connecting a crystal to a watch casing in which the crystal is used for generating acoustic signals. The member is of generally annular configuration with an inner portion rigidly connected to the circumference of the crystal, an outer peripheral portion connected to a supporting member of the watch casing, and a free portion extending between the inner portion and the outer peripheral portion. The free portion has a width and a thickness which permits flexing in a direction normal to the plane of the crystal so that the crystal can vibrate in a direction normal to its plane and act as an acoustical transmitting member.
申请公布号 US4271498(A) 申请公布日期 1981.06.02
申请号 US19780958408 申请日期 1978.11.07
申请人 EBAUCHES S.A. 发明人 ZAFFERRI, ROBERTO;SCHNEITER, ALI;BESSON, RENE
分类号 G04B39/02;G04B39/00;G04C21/02;G04G21/00;G04G21/06;G10K13/00;(IPC1-7):G04C21/16;G04B37/00 主分类号 G04B39/02
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