Device for positioning a bridge on a plate
AssigneeETA SA Manufacture Horlogere Suisse
InventorBaptist Wyssbrod
Life of this patent
Estimating the term…
Abstract
Positioning device (1) between a bridge (2) and a plate (3). This plate (3) includes: for centering this bridge (2), a female arrangement (4) with faces (5) receiving a cylindrical smooth centering pin (6), fixed to this bridge (2) and abutting on these faces, for aligning this bridge (2) on this plate (3), an alignment housing (8) with parallel faces (9, 10) aligned on this female arrangement (4), receiving an alignment pin (11), fixed to this bridge (2). Collet (15) arranged to be fixed to a plate and including this female centering arrangement (4). Timepiece including a device (1) or collet (15) of this type. Method of assembling this bridge (2) on this plate (3) with this device (1).
Claims20
A centering and alignment device between a bridge and a plate for horology, comprising:
- a centering device between said bridge and said plate, said centering device including a centering pin and a centering housing, said bridge carrying said centering pin which is constituted by a smooth centering pin with revolution symmetry about an axis of revolution, and said plate carrying said centering housing which is constituted by a ribbed female centering housing, extending in a linear direction and including female areas of support which are spaced equidistantly of said linear axis, and said ribbed female centering housing arranged to receive said smooth centering pin fixed to said bridge, and abutting on at least three of said female areas of support;
- and
- for aligning said bridge relative to said plate:
- an alignment pin carried by said bridge and including at least two shoulders, which are symmetrical relative to an axis, and
- an alignment housing in said plate and arranged to receive said alignment pin, said alignment housing in symmetry relative to a median plan, wherein said alignment housing is aligned in an alignment direction relative to a directional axis of said centering housing, said directional axis being respectively constituted by said linear direction of said ribbed female centering housing.
A centering device between a bridge and a plate of horology, wherein, for centering said bridge on said plate, said centering device including a centering pin and a centering housing,
- said bridge carrying said centering pin which is constituted by a smooth centering pin with revolution symmetry about an axis of revolution;
- and said plate carrying said centering housing which is respectively constituted by a ribbed female centering housing, extending in a linear direction and including female areas of support which are spaced equidistantly of said linear axis, and said ribbed female centering housing arranged to receive said smooth centering pin fixed to said bridge, and abutting on at least three of said female areas of support.
A collet for timepiece, arranged to be secured to a plate and including a centering housing for centering a pin on said plate, wherein said centering housing is a ribbed female centering housing which extends in a linear direction and includes female areas of support or faces in a polygonal cross-section orthogonally to said linear axis, and wherein said female arrangement is arranged to receive a centering pin with revolution symmetry abutting on at least three of said faces.
Dependencies are inferred from the claim text.