摘要:
The invention relates to a method (31) for fabricating pallets (3) for an escapement system (1). According to the invention, the method (31) includes the following steps: a) forming (31), using a first material, the lever of the pallets (3) a first end of which includes the dart (15) and a second end includes two arms (11, 13) each for receiving a pallet stone (10, 12); b) over-moulding (35) a second material on said first end in order to form a pallets fork (17); c) adjusting (37, 39) said pallet stones and a staff (14) to enable the pallets (3) to be rotatably mounted. The invention concerns the field of escapement systems for timepieces.
摘要:
A method for fabricating pallets for an escapement system concerns the field of escapement systems for timepieces. The method includes forming integrally, using a first material, a lever of pallets. A first end of the lever includes a dart. A second end of the lever includes two arms each for receiving a pallet stone. The method includes over-moulding a second material different from the first material on the first end of the lever in order to form a pallets fork. The method includes mounting the pallet stones and a staff to enable the pallets to be rotatably mounted.
摘要:
A timepiece movement includes a plate and a bridge carrying a barrel, which includes a barrel mainspring between a drum and a receiving surface of a steel or stainless steel core and a cover fixed to the drum. The spring is made of a multiphase, cobalt-nickel-chromium based alloy, having a Young's modulus of between 200 and 240 GPa and a shear modulus of between 80 and 100 GPa, and having a width to thickness ratio of between 3 and 23, and a maximum radius of the steel or stainless steel core relative to a pivot axis is less than nine times a maximum thickness of the spring. The movement includes a shake limiting mechanism including a shim-washer independent of the core and guided by a shoulder of the core.
摘要:
A timepiece barrel assembly, including a barrel mainspring mounted between a barrel drum and a receiving surface of a barrel core coaxial to the drum. The spring is made of a multiphase, cobalt-nickel-chromium based alloy, having a Young's modulus of between 200 and 240 GPa and a shear modulus of between 80 and 100 GPa, and having a width to thickness ratio of between 9 and 21, and the maximum radius of the steel or stainless steel core relative to its pivot axis is less than nine times the maximum thickness of the spring, and the barrel assembly includes, on the spring or the drum, a mechanism limiting longitudinal clearance, towards the pivot axis, between the drum and the mainspring.
摘要:
A timepiece barrel assembly, including a barrel mainspring mounted between a barrel drum and a receiving surface of a barrel core coaxial to the drum. The spring is made of a multiphase, cobalt-nickel-chromium based alloy, having a Young's modulus of between 200 and 240 GPa and a shear modulus of between 80 and 100 GPa, and having a width to thickness ratio of between 9 and 21, and the maximum radius of the steel or stainless steel core relative to its pivot axis is less than nine times the maximum thickness of the spring, and the barrel assembly includes, on the spring or the drum, a mechanism limiting longitudinal clearance, towards the pivot axis, between the drum and the mainspring.
摘要:
A timepiece movement, including a plate and a bridge carrying a barrel including a barrel mainspring between a drum and a receiving surface of a core and a cover fixed to the drum. The spring is made of a multiphase, cobalt-nickel-chromium based alloy, having a Young's modulus of between 200 and 240 GPa and a shear modulus of between 80 and 100 GPa, and having a width to thickness ratio of between 3 and 23, and the maximum radius of the steel or stainless steel core relative to the pivot axis is less than nine times the maximum thickness of the spring. The movement further includes a mechanism limiting shake including a shim-washer independent of the core and guided by a shoulder of the core.
摘要:
Device for electromechanical watch (1) allowing an electronic control circuit of the watch (1) movement to determine the moment at which and the direction in which an indication showing a magnitude of time has to be corrected, said device including a wheel (68), which is driven by the watch (1) movement and carries means (70, 72) for actuating first and second detection means (46a, 46b) connected to the electronic control circuit, said electronic control circuit deducing, from the moment at which and the order in which the first and second detection means (46a, 46b) are actuated by the means actuating the wheel (68) driven by the watch (1) movement, the direction in which the wheel (68) is being driven by the movement at the moment when the magnitude of time has to be respectively incremented or decremented.
摘要:
The device includes a barrel (2) inserted in the kinematic chain between the rotor (11) of the generator (1) and the oscillating weight (3). The barrel includes a spiral coiled spring (4) and a sliding strip (6), wound in the same direction as the spiral coiled spring over the length of a turn, without any mechanical connection with the spring, but forming a protective envelope in the open position in case of shock. The shockproof device can be applied to the generator of a wristwatch.
摘要:
The watch case (1) is of plastic material and provided with a hole (3) in which a push button (6) may slide. The end (12) of the stem (7) of the push button includes a bulge (13) the diameter of which is greater than that of the neck (11) formed at the end of the hole opening into the interior of the case (1). When the stem (7) is introduced into the hole (3) of the wall (2) the bulge (13) elastically deforms the neck (11) which afterwards reassumes its initial form and assures axial positioning of the stem (7).
摘要:
The present invention concerns a control device for electronic apparatus of the electronic stem type, adapted to be shifted between a plurality of axial positions. According to one preferred embodiment, the stem (1), with axis X, has four different axial positions. Two contact clips (21, 22, 60, 61) mutually offset in the direction of the axis X are provided to make contact with two respective power supply terminals (19, 20, 75, 76) of a source of electrical power supply. The stem comprises a plurality of cylindrical portions (36, 38, 50, 51, 52) which cooperate with deformable extensions (27, 28, 64, 65) of the contact clips to deform them in a direction substantially perpendicular to the axis X. Thus, in accordance with the axial position of the stem (1), the contact clips (21, 22, 60, 61) can be in different electrical states, i.e. isolated or connected to the source of power supply, independently of one another. As a result the assembly formed by the two contact clips can exhibit four different states, each being representative of a given axial position of the stem.