Patent ID: 9563175
Date: 2017-02-07
CPC Classifications: G04B

Claim:
1. An assembly for holding or supporting a timepiece balance spring including a cock provided with an upper surface and a lower surface on which a balance spring stud and a stud-holder are arranged, wherein the stud-holder includes: means for securing said stud to the cock, the means for securing said stud comprising an orifice traversing said cock and provided with a peripheral rim to form a housing for insertion of the stud, wherein said means for securing said stud also include a rotating element comprising attachment means for rotatable attachment thereof inside the housing, said rotating element having an outer edge cooperating with the stud to lock said stud between the outer edge of the rotating element and the peripheral rim of the housing when the rotating element is assembled in the housing, and wherein the peripheral rim or the rotating element is provided with a through notch in order to place the stud therein.