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101results about "Shock protection arrangement" patented technology

Hairspring-collet assembly for a timepiece movement

A spiral / collet assembly for a horological movement comprises a collet (1) and a spiral (3) attached by its internal end to the collet (1). The collet (1) is suitable for being mounted on a spindle (2). The external contour of the collet (1) defines stops (10a, 10b, 10c) against which the internal turn of the spiral (3) can come to bear during a shock before the elastic limit of the internal turn is exceeded. The stops (10a, 10b, 10c) are situated at respective distances (Ra, Rb, Rc) from the centre (O) of the spindle (2) that increase in the direction (D) of the spiral (3) going from inside to outside from the point (8) where the spiral (3) joins the collet (1).
Owner:PATEK PHILIPPE SA

Shock absorbing member for wristwatch and wristwatch

A shock absorbing member for a wristwatch includes a wristwatch case whose side portions are provided with a pair of bands and an operation member positioned avoiding the pair of bands, and back surface has a case back attached thereto. This shock absorbing member is made of a flexible resin, and includes a peripheral side portion that surrounds the wristwatch case and projects further outward than a top surface of the wristwatch case, and a bottom portion to which the case back is attached. In addition, the peripheral side portion is provided with band holes into which the pair of bands are inserted and an operation hole corresponding to the operation member. Accordingly, even when a strong shock of falling from a high place or the like is received, the shock is unfailingly absorbed.
Owner:CASIO COMPUTER CO LTD

Timepiece oscillator mechanism

A timepiece oscillator comprising a structure and distinct, temporally and geometrically offset, primary resonators, each comprising a mass returned to the structure by an elastic return means, this timepiece oscillator comprises coupling means for the interaction of the primary resonators, comprising a wheel set subjected to a torque or drive force, this wheel set comprising drive and guide means arranged to drive and guide a control means articulated with transmission means, each articulated, remote from the control means, with a mass of a primary resonator, and the primary resonators and the wheel set are arranged such that the axes of articulation of any two of the primary resonators and the axis of articulation of the control means are never coplanar.
Owner:ETA SA MFG HORLOGERE SUISSE

Protective guard for a watch

A protective guard for a watch is provided. The protective guard is formed of a high performance elastomer and is configured to be positioned over a watch in order to enhance impact, shock and abrasion resistance of the watch. The protective guard is secured in place on the watch by a friction fit with the watch and by a band extending through apertures at opposite ends of both the watch and the protective guard. The protective guard can be easily installed on the watch or removed from the watch as desired.
Owner:MH BERTUCCI

Isochronous timepiece resonator

ActiveUS20170123380A1Low sensitivity to changeQuality factorEscapementsFrequency stabilisation mechanismPhase shiftedEngineering
A watch including a movement including itself an isochronous timepiece oscillator mechanism including a fixed support bearing a crosspiece carrying N primary resonators each including a weight carried by a rotating flexible bearing fixed to this crosspiece. Each primary resonator has a center of mass which, at rest, is on the virtual pivot axis of its rotating flexible bearing and is arranged to oscillate in rotation about this virtual pivot axis. The primary resonators are arranged in rotational symmetry of order N about a main axis parallel to the virtual pivot axes, and oscillating motions of any two primary resonators are phase shifted by the value of the central angle formed by their respective virtual pivot axes with the main axis.
Owner:ETA SA MFG HORLOGERE SUISSE

Timepiece movement with a tourbillon fitted with a shock protection device

The invention concerns a timepiece movement including a tourbillon that has a rotating carriage bearing a sprung balance and an escapement, wherein said carriage includes a top pivot and a bottom pivot, respectively carried by a top bridge and a bottom bridge of the carriage, and said carriage pivots between a bottom plate of said timepiece movement and a bridge of said movement, characterized in that it further includes a stop member, arranged for limiting the axial shake of the carriage.
Owner:MONTRES BREGUET

Timepiece movement provided with a drive mechanism for the periodic or intermittent movement of an analogue indicator

The timepiece movement is provided with an analogue device for displaying information whose value varies periodically or intermittently, this analogue display device including, on the one hand, an indicator provided with a first toothing, and on the other hand, a mechanism for the periodic or intermittent driving of the indicator. The drive mechanism is formed by an irreversible transmission system which ensures a shock resistant function for the indicator. The display device further includes a positioning jumper for the indicator generating a positioning force on the first toothing, which is sufficient to precisely position the indicator in a plurality of discrete display positions, but considerably insufficient to ensure a shock resistant function for the indicator. Thus, the indicator can be driven with a relatively low torque; which therefore requires less energy and makes it possible to provide a drive mechanism with a lower gear reduction for the drive torque transmission ratio.
Owner:ETA SA MFG HORLOGERE SUISSE

Oscillator with a detent escapement

The invention relates to an oscillator comprising a resonator of the inertia-elasticity type cooperating with a detent escapement comprising a detent cooperating with an escape wheel. The resonator is in one-piece and includes an inertia member and a first flexible structure providing the elasticity and forming a virtual pivot axis of the resonator and the detent is in one-piece and includes an unlocking spring and a second flexible structure forming a virtual pivot axis of the detent.
Owner:NIVAROX FAR

Anti-trip device for an escape mechanism

Anti-trip device (1) for a balance (2) pivoting about an axis (D1) whose position is fixed relative to a plate (3).It includes a banking pin (5) on said plate (3), a bistable assembly (8) including:a rotor (9) which is synchronous with said balance (2) and a lever (11) pivoting about another axis (D2) of said rotor (9) between two extreme positions of indexing means (12) memorising the position of said balance (2), the trajectory of said lever (11) partially interfering with said banking pin (5) when said balance (2) is pivoting;means (15) for limiting amplitude in the event of a shock, which includes stop means (16) between said lever (11) and said banking pin (5), forming a pivot stop during a normal arc of the balance and which, when pressed, generates a change of position in said indexing means (12) and a stop for said balance (2) in the event of knocking.
Owner:NIVAROX FAR

Watch case

The invention relates to a watch case including a middle (2, 24, 34), one opening of which is closed by a bezel (8, 18, 28) and / or a crystal (1, 11, 21), or by a back (40). At least one of the elements for closing the opening is connected to the middle by a resilient metal member (3, 23, 33) having a recessed cross-section defined by the profile of a non-rectilinear wall having a constant thickness and the ends (3a, 3b) of which are connected to the periphery of said closing element (1, 11, 21, 18) of said middle (2, 24, 34), respectively. The profile of said non-rectilinear wall defines at least one annular fold having an orientation parallel to the plane of said opening, said fold being formed by a curvature, the arc of which defines an angle of between > 90 DEG and 180 DEG , so as to impart to said closing member (1, 11, 21, 18) a freedom of movement relative to the plane of the opening.
Owner:ROLEX SA

Antitripping device for watch-escapement

The anti-trip device is for a detent escapement mounted on a wristwatch. It includes a finger fixed to the arm of the balance, two columns between which the finger can pass, said columns being secured to the balance bridge, and a locking arm fixed to the outer coil of the balance spring, said locking arm being able to be inserted between said columns and said finger to prevent the balance from rotating beyond an angle exceeding its normal operating angle. The locking arm is a clamp hooked onto the outer coil of the balance spring.
Owner:MONTRES BREGUET

Watch case

A watch case includes a middle (2, 24, 34), one opening of which is closed by a bezel (8, 18, 28) and / or a crystal (1, 11, 21), or by a back (40). An element for closing the opening is connected to the middle by a resilient metal member (3, 23, 33) having a recessed cross-section defined by the profile of a non-rectilinear wall having a constant thickness, whose ends (3a, 3b) are connected to the periphery of the closing element (1, 11, 21, 18), respectively. The profile of the non-rectilinear wall defines at least one annular fold having an orientation parallel to the plane of the opening, the fold being formed by a curvature whose arc defines an angle of between >90° and 180°, so as to impart to the closing member (1, 11, 21, 18) a freedom of movement relative to the plane of the opening.
Owner:ROLEX SA

Protection for the strips of a mechanical watch resonator

Strip resonator for a mechanical watch movement, comprising a structure, an oscillating inertial element, and elastic strips forming a flat bearing for the inertial element, and a flat, anti-shock device arranged to protect each strip from rupture in the event of a shock, and including a first prestressed flexible element arranged to allow a variation in length during the expansion or contraction of a strip within a range of lengths corresponding to normal operation of this strip under the action of a stress of intensity lower than a first threshold, and to prevent the expansion or contraction of this strip when it is subjected to a tensile or respectively compressive stress of intensity higher than the first threshold, and the resonator includes, for the three-dimensional anti-shock protection of the strips, in an axial direction perpendicular to a main plane, axial protection means, which include, on the one hand, axial banking members for limiting the axial travel of at least one inertial element, and on the other hand, an axial anti-shock device comprising a second axially prestressed flexible element.
Owner:THE SWATCH GRP RES & DEVELONMENT LTD

Wear and shock resistant escapement lever for a timepiece movement

The invention concerns a escapement lever (1) for the escapement mechanism of a timepiece movement, including at least one fork delimiting a notch (2) which includes horns (3; 4) arranged for cooperating with a balance.Said fork notch (2) includes, in at least one said horn (3; 4), a slot (5, 6) and / or a chamber (30), wherein said slot (5; 6) and / or chamber (30) is arranged to confer elasticity on the corresponding horn, which softens the shock at each impulse, by absorbing part of the impact energy, and then returning it subsequent to said impact.
Owner:ETA SA MFG HORLOGERE SUISSE

Wristwatch case

This watch case comprises a closed enclosure to take a watch movement, having a middle traversed by at least one control stem, to which middle are fixed both a base and a glass. This closed enclosure is housed in an outer jacket having an upper element with an opening for the passage of the glass, a base and a side wall with means of connection to the strap and with at least one passage for said control stem, while elastic suspension means are arranged between the base of the jacket and said enclosure in order to exert, on a bearing surface of the middle at the periphery of said glass, a pressure that will tend to keep this bearing surface of the middle pressed permanently against the edge of said opening for the passage of the glass.
Owner:モントレワイラーソシエテアノニムジュネーブ

Portable electronic device

A portable electronic device includes: a case (top case); a bezel having a ring shape located on the outer edge side of the case and attached to the case; and a windshield plate located inside the bezel. The bezel includes a first member (bezel main body portion) having a ring shape fitted to the case and a second member (bezel display plate) softer than the first member and holding the windshield plate.
Owner:SEIKO EPSON CORP
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