Ratchet assembly device for fitting a back cover and/or a bezel onto a watch case middle

摘要

An elastic assembly joined to at least one side face of one of the members to be assembled is engaged by elastic deformation with a ratchet fastening element fixedly connected to the other member to be assembled. These elastic assemblies are constituted by an elongated element. The assembly side face to which it is joined has an elongated receptacle for the reception thereof, this forming in the assembly side face a opening through which a side portion of its wall projects to lie within the trajectory of the ratchet fastening element so as to allow coupling of this ratchet fastening element, at least one of the faces of the latter being configured to hold the elongated element under elastic strain and being orientated to resolve the force exerted upon it into a component which tends to hold the assembled members in place.