摘要:
A back (1) for a watch case (50), the back (1) including a first element (10) arranged so as to be screwed onto the watch case (50), and a second element (20) including an end face bearing a pattern (M), the second element (20) being mounted such that it can move in rotation about an axis (C) passing through the centre of the case (50), wherein the second element (20) has a brake arranged so as to hold same relative to the first element (10) in different angular positions about the rotational axis (C), the brake being disposed between the first and second elements (10, 20).
摘要:
The invention concerns a grand date display device that can change from displaying the last day of the month to displaying the first day of the following month by means of a single step of the first and of the second upper plates. This feature avoids the requirement for a correction at the end of months of less than 31 days.
摘要:
Timepiece or watch (1000) or music box including an acoustic display mechanism (100), for a striking timepiece (1000), including a plurality of control-pieces (1) for the same time measurement parameter, staged in parallel planes, and further including melody selection means (3), arranged to be operated by a user or by the timepiece movement, controlling or prohibiting, at a given moment, access of the control-pieces (1) to a common snail (2) corresponding to said time measurement parameter, to allow only one of the control-pieces (1) to operate at least one lever (4) controlling the motion of a hammer to play a melody that is specific thereto or to activate at least one gong that is specific thereto.
摘要:
A mechanism for advancing, by periodic jumps, a pivoting cage for an escapement mechanism, including: a retaining mechanism authorizing or preventing the pivoting of the cage, depending on its movement; and a stopping mechanism authorizing or preventing the pivoting of the retaining mechanism, depending on its angular position. A constant force device causes periodic cooperation of the retaining mechanism, which includes a flirt arranged to perform complete revolutions and is connected to an input thereof, with the stopping mechanism, which includes a star wheel and is connected to an output thereof, whose trajectories interfere with each other, to pivot the cage when the stopping mechanism allows the pivoting of the retaining mechanism and to stop the cage when the stopping mechanism locks the retaining mechanism.
摘要:
A mechanism for advancing, by periodic jumps, a pivoting cage for an escapement mechanism, including: a retaining mechanism authorizing or preventing the pivoting of the cage, depending on its movement; and a stopping mechanism authorizing or preventing the pivoting of the retaining mechanism, depending on its angular position. A constant force device causes periodic cooperation of the retaining mechanism, which includes a flirt arranged to perform complete revolutions and is connected to an input thereof, with the stopping mechanism, which includes a star wheel and is connected to an output thereof, whose trajectories interfere with each other, to pivot the cage when the stopping mechanism allows the pivoting of the retaining mechanism and to stop the cage when the stopping mechanism locks the retaining mechanism.
摘要:
The large date mechanism comprises three superposed indicator discs (1, 2, 3). The lower disc (3) bears eleven numerals (8) and the upper (1) and intermediate (2) discs each bear ten numerals (4, 6) and a window (5, 7). Each of the discs is integral to a star wheel (12, 13, 14) with cannon pinions (9, 10, 11). The cannon pinion star wheels are selectively driven by a control movement (15) comprising three toothed sectors (19, 18, 17) integral to a calendar day wheel (16) that advances one step per day. The mechanism can be supplemented by a safety device ensuring blocking of the star wheels when they should be stationary.
摘要:
This watch case includes a caseband (1), a detachable bezel (4) and bayonet means (8,9,10,11,12,13) for interlocking the bezel onto the caseband. Blocking means (6) are interposed between the bezel and the caseband when a predetermined rotation angle has been effected by the bezel, this in order to prevent any rotational movement of the bezel. Such blocking means include manual grasping means (7) enabling retraction of said blocking means, then disengagement of the bezel from the caseband by rotation initially and then translation.
摘要:
The character display mechanism for a timepiece includes a first indicator member disposed underneath a mask and arranged to rotate in steps about an axis, the first indicator member bearing a series of intertwined figures distributed over a circular track, the mask including a display area having a plurality of first openings, the figures being intended to appear successively through the first openings during the rotation of the first indicator member, and the first openings being disposed such that only one figure at a time appears in the display area. The first indicator member is pierced with second openings, said second openings being arranged to stop directly underneath one of said first openings during the step-by-step rotation of the first indicator member. The display mechanism includes a second indicator member at least partially superposed on the first indicator member in the display area. The second indicator member bears a pattern comprising segments.
摘要:
A two-directional date corrector mechanism controlled by a pull-out piece for a date mechanism. The mechanism includes a 24 hour wheel, a date updating finger pivoting integrally therewith, a date driving star-wheel, and a corrector star-wheel meshing therewith and located between the date driving star-wheel and the finger and configured to be uncouplable from the finger under action of an uncoupling mechanism controlled by the pull-out piece, the uncoupling mechanism having a coupling position where the corrector star-wheel meshes with the finger, and an uncoupling position where it is released from the finger to allow the date to be corrected. A date mechanism can include such a date corrector mechanism and a timepiece can include such a date corrector mechanism.
摘要:
Timepiece barrel assembly including a barrel arbor including between first and second guide shoulders, a median shoulder carrying a core and a spring mounted between a drum and this core, this barrel arbor including, between this first shoulder and this core a ratchet-holder for securing a ratchet, and this core including, on the same side as and at a distance from this ratchet-holder, a first part for guiding the pivoting of this drum, in immediate proximity to which there is fixed this ratchet at a distance from and on the same side as this first shoulder, and the ratchet-holder directly or indirectly limits the shake of this drum relative to a bearing surface of this core at the edge of a receiving surface for this spring.