Spiral-spring balance wheel regulating member
AssigneeRolex SA
InventorsBenoit Boulenguiez, Eric Jolidon
Life of this patent
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Abstract
This spiral-spring and balance wheel regulating member includes a shaft mounted pivotably on the frame of a timepiece. The spiral spring includes at least one blade, whose inner end is designed to be fixed to the pivot shaft and whose outer end is made in one piece with a member (2) for connection to the frame, the rigidity of this connecting member being substantially greater than that of the spiral. The connecting member (2), on one hand, and the frame (9) or a member (6) for the angular positioning of the regulating member on the frame, on the other hand, both have respective bearing surfaces which are at least partially complementary, and these complementary bearing surfaces are joined.
Claims27
A spiral-spring and balance regulating member (10) assembly comprising:
- a frame (9) designed to be mounted in a timepiece, and
- a regulating member (10), wherein the regulating member (10) comprises
- a pivot shaft mounted pivotably on the frame (9),
- a spiral spring (1) including at least one blade located in a plane,
- a connecting member (2) for connection to the frame (9) or to a an angular positioning member (6) for the angular positioning of the regulating member (10) on the frame (9), a rigidity of the connecting member (2) being substantially greater than a rigidity of the spiral spring (1), wherein an inner end of the spiral spring (1) is fixed to the pivot shaft and an outer end of the spiral spring (1) is integral with the connecting member (2),
- wherein both (i) the connecting member (2) and (ii) the frame (9) or the member (6) for the angular positioning of the regulating member (10) on the frame (9) have respective bearing surfaces which are at least partially complementary to each other and substantially parallel to the plane of the spiral spring, the complementary bearing surfaces being joined fixedly to each other,
- wherein the connecting member (2) includes at least two positioning elements (4) distributed angularly about the pivot shaft.
A spiral-spring and balance regulating member (10) comprising:
- a pivot shaft designed to be mounted pivotably on a frame (9) of a timepiece,
- a spiral spring (1) including at least one blade located in a plane,
- a connecting member (2) for connection to the frame (9) or to an angular positioning member (6) for the angular positioning of the regulating member (10) on the frame (9), a rigidity of the connecting member (2) being substantially greater than a rigidity of the spiral spring, wherein an inner end of the spiral spring is fixed to the pivot shaft and an outer end of the spiral spring is integral with the connecting member (2),
- wherein the connecting member (2) has a bearing surface substantially parallel to a plane of the spiral spring, wherein the bearing surface extends at least one of (i) over an angular portion of more than 60° and less than 360° about a pivot axis of the pivot shaft, (ii) excentrically with respect to the pivot axis of the pivot shaft to form a bearing surface of an excentric protrusion member, or (iii) over 360° about the pivot axis of the pivot shaft, and has no holes therein.
Dependencies are inferred from the claim text.