摘要:
Timepiece fitted with a movement, characterised in that it includes a plate (6) driven in rotation by the movement (1) and which carries at least two off-centre display members which rotate about themselves and which are coupled to each other by a gear train (67, 80) whose ratio determines the frequency with which the decorative designs covering the display members cooperate with each other to form a determined fancy decoration.
摘要:
The invention relates to a one-piece hairspring (21, 21′) including, a balance spring (25, 25′) coaxially mounted on a collet (27, 27′), made in the same layer of silicon-based material. According to the invention, the hairspring includes an elevation device (2, 2′) for the outer coil of the balance spring above the layer of silicon-based material so as to improve the concentric development of the hairspring. The invention also relates to a timepiece including a hairspring of this type and the method of manufacturing the same. The invention concerns the field of timepiece movements.
摘要:
The mechanism includes, mounted to rotate freely on an arbour 6, a driving wheel (5) driven by an oscillating drive pinion (3) and a driven wheel (7) meshed with the first wheel set (1) of a kinematic chain and comprising a dome (11) for housing a coupling device (10) comprising at least one bent locking arm (12) one end (14) of which has a pivoting point (14a, 14b) on the driving wheel (5) and the other end (16) of which has a point of abutment (16a) against the inner wall (2) of the dome (11) of the driven wheel (7) via the action of a spring (20) integral with said arm (12). The pivoting point (14b) preferably moves along a cam (21).Application to automatic winding by an oscillating weight.
摘要:
The housing (6) of the bearing block (1), locks the peripheral ring (11) of a spring (10) with axial and radial deformation further comprising a substantially annular rigid central support (13) which cooperates with a cap (23), fitted by means of lugs (25) to the outside of the central support (13), to hold the pierced stone (4) and the endstone (5). The resilient part (12) of the spring (10) is for example formed of bent arms.
摘要:
The spiral includes turns of rectangular section, whose pitch p and/or thickness e can vary from the inside curve towards the outside curve, or whose winding can deviate from the line of a perfect spiral. The inside curve can also be extended by a self-locking washer for fixing the spiral on the balance arbour with no play. The spiral is manufactured by photolithography and galvanic growth, or by micro-machining an amorphous or crystalline material such as a silicon wafer.
摘要:
The detent escapement includes a wheel 2 fitted with teeth 3, a roller 4 fitted with an impulse pallet stone 5, a blocking member in the form of a lever 6 hinged on a pin 8. The first and second arms 9 and 10 of the lever respectively carry a locking pallet stone 7 and a first actuating finger 11. An elastic member 12 is mounted on the roller 4, said member carrying a second actuating finger 14 capable of driving the first finger 11 when the roller 4 rotates in a first direction a to actuate the blocking member 6 and to move around said first finger 11 without driving it, when the roller 4 rotates in a second direction b opposite to the first. The elastic member 12 is a spring of great length including a plurality of turns 15 wounded about a centre 16.