Arbor for a timepiece barrel

Abstract

The arbor (10) for a timepiece barrel (100) has a longitudinal axis (A), a first part (1) having a first shoulder (13) to position a drum (4) or a cover (3), and a second part (2) attached or fastened to the first part (1) and having a second shoulder (14) to position a drum (4) or a cover (3), the first part (1) and/or the second part (2) having a first pivoting surface (11) for a drum (4) or a cover (3). The first shoulder (13) and the second shoulder (14) are positioned on either side of the first pivoting surface (11). The first part (1) has a third pivoting surface (21) to cooperate with a first bearing (8) arranged within a blank (81). The second part (2) has a fourth pivoting surface (22) to cooperate with a second bearing (9) arranged within a blank (91). The first part (1) has a second pivoting surface (12) for a cover (3) or a drum (4).

Dependencies are inferred from the claim text.