Mechanical timepiece fitted with a device for adjusting the shake of a rotating part or wheel set
AssigneeETA SA Manufacture Horlogere Suisse
InventorsChristian Rüfenacht, Ivan Villar
Life of this patent
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Abstract
The timepiece includes means for adjusting the shake of a rotating part or wheel set, in particular a balance one bearing of which is arranged in a bar (4). This bar comprises a base (18) associated with a adjusting screw (34) one end (36) of which rests on the bottom plate. Rotating this adjusting screw varies the distance between the base and the bottom plate (14). The center of the adjusting screw is pierced for the passage of a tightening screw (32) for fixing the bar to the bottom plate. This adjusting screw is arranged in a hole (42) passing through the base (18) and can be rotated through the hole from the top face (46) of the bar in order to adjust the balance shake.
Claims5
A mechanical timepiece fitted with a rotating part, which includes an arbour, one end of which pivots in a first bearing carried by a bar and the other end pivots in a second bearing arranged in a bottom plate, said timepiece including means for adjusting the shake of said rotating part, wherein said adjusting means include at least one element for adjusting the distance between a base of said bar and said bottom plate, said adjusting device having a first hole for the passage of a tightening screw and being able to be actuated through a second hole machined in said base and passing therethrough, said tightening screw being introduced into said second hole to secure said base to said bottom plate but not being in place in said second hole when said adjusting device is actuated from the top face of said bar opposite said bottom plate and through said second hole in order to adjust the shake of the rotating part.
Dependencies are inferred from the claim text.