ASSEMBLY SYSTEM UTILISING FLAT, ELASTIC LOCKING ELEMENT Russian patent published in 2019 - IPC G04D1/00 

FIELD: watches and other time measuring instruments.

SUBSTANCE: invention relates to an assembly system including a member made of at least a first material including a staff and a shoulder, the staff of the member being received in an aperture of a part made of a second material having little or no plastic domain. According to the invention, the assembly system includes a locking element made of a third material arranged to attach the part between the shoulder of said member and the locking element; the locking element is a washer whose internal wall radially grips the staff of said member, and whose peripheral portion exerts an elastic radial force vertical to the shoulder of said member in order to secure the assembly of the member-part-locking element.

EFFECT: object of the present invention to overcome all or part of the aforecited drawbacks by providing an adhesive-free assembly which can secure a part made of a material with no plastic domain to a member comprising a ductile material, such as, for example, a metal or metal alloy.

23 cl, 10 dwg