公开(公告)号：US4727525A

公开(公告)日：1988-02-23

申请号：US841412

申请日：1986-03-19

申请人： Paul Gogniat ,  Francoise Albrecht ,  Renato Scarinzi ,  Marco Scarinzi

发明人： Paul Gogniat ,  Francoise Albrecht ,  Renato Scarinzi ,  Marco Scarinzi

IPC分类号： G04B37/08 ,  G04B37/14 ,  G04B37/18 ,  G04B39/02 ,  G04B37/00

CPC分类号： G04B39/02

摘要： The watch case including a back cover, a caseband, a crystal, the peripheral zone of which entirely covers the caseband, a casing ring including at least one packing, a pair of supports facing one another fixed to the caseband and forming therewith a slot in which the crystal may be engaged and means for displacing the casing ring in order to compress the packing against the internal surface of the crystal and block said crystal against the supports. The crystal exhibits at least in its peripheral zone a spherical form of constant thickness. The upper surface of the caseband has the form of a part of a sphere the radius of which is substantially equal to that of the internal surface of the crystal. During assembly the internal surface of the crystal is made to slide over the upper surface of the caseband with a rotational motion resulting from the sliding of a spherical surface over part of a sphere.

摘要翻译： 手表壳体包括后盖，壳体带，晶体，其外围区域完全覆盖壳体带，壳体环，其包括至少一个填料，一对支撑件，其彼此相对固定到壳体带上并形成槽 晶体可以被接合的装置，以及用于移动套管环的装置，以便将衬垫压靠在晶体的内表面上，并将所述晶体阻挡在支撑件上。 晶体至少在其周边区域呈现恒定厚度的球形。 外壳带的上表面具有半径大体上等于晶体内表面的球体的一部分的形式。 在组装期间，晶体的内表面被制成在壳体带的上表面上滑动，由于球形表面在球体的一部分上滑动而产生的旋转运动。