发明名称 |
WATCH CASE, ASSEMBLY TO MAKE IT AND METHOD FOR COMPLETING THIS ASSEMBLY |
摘要 |
The watch case of this invention includes a caseband-back of plastic material, a metallic bezel and a packing to assure impermeability between the caseband-back and the bezel. A first annular seat extending radially into the bezel receives an annular protuberance integrally formed with the caseband in a manner such that the caseband-back and bezel become inseparable. At the same time a packing is compressed into a second seat to render impermeable the discontinuity between the caseband-back and the bezel. Assembly of the caseband-back to the bezel is effected by ultrasonic vibrations. |
申请公布号 |
EP0284899(B1) |
申请公布日期 |
1991.01.16 |
申请号 |
EP19880104208 |
申请日期 |
1988.03.17 |
申请人 |
ETA SA FABRIQUES D'EBAUCHES |
发明人 |
MEISTER, LEONHARD |
分类号 |
B29C65/64;G04B37/08;G04B37/18;G04B37/22 |
主分类号 |
B29C65/64 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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