Patent ID: 9529328
Filing Date: 2016-12-27
CPC Classification: G04B

Claim Text:
1. A timepiece brake wheel assembly, comprising: an arbor comprising a first surface cooperating, to guide pivoting, with a second surface of a wheel pivotally mounted on said arbor around a pivot axis, wherein said first surface or respectively said second surface includes at least one braking surface carried by at least a first braking arm subjected to the action of at least a first elastic return means, in one-piece with said arbor or respectively said wheel, and arranged to exert a radial force with respect to said pivot axis on said second surface or respectively said first surface, wherein said brake wheel assembly includes built-in adjustment means for discrete value adjustment of friction exerted by said braking surface on said second surface or respectively said first surface, wherein said built-in adjustment means include a bearing surface arranged to cooperate in abutment and by thrust force with a complementary bearing surface comprised in a brake shoe on a side opposite said braking surface, and wherein said built-in adjustment means include at least a second flexible arm carrying said bearing surface, said second arm being, either radially limited on a first side with respect to said pivot axis and, on a second side opposite to said first side, in abutment on an adjustment device arranged to occupy one of a plurality of discrete positions with respect to said arbor or respectively said wheel, or returned towards said complementary bearing surface of said brake shoe by a second elastic return means.