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A watch case, elastic metal technology, applied in the direction of clocks, casings, face/clock glass, etc., can solve the problem of not ensuring the reliability of tight sealing
Inactive Publication Date: 2012-02-15
ROLEX SA
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The mobility of this side edge piece is due to the piece made of rubber or polyurethane, however, it does not ensure a tight seal and its reliability is questionable in the long run
Method used
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[0021] A resilient metal member, in the form of a ring or annular frame and having a concave profile defined by a non-rectilinear wall profile, advantageously of substantially constant thickness, the ends of which are respectively coupled to the central opening and to the watch case according to the invention The outer periphery of the closure element, formed comprising a telescoping tube with at least one annular fold formed by a bend, the arc of which defines an angle between >90° and 180°, in order to provide said closure element with respect to the central opening freedom of movement of the plane.
[0022] A metal bellows is an element formed of thin metal walls with a profile carefully chosen to give the whole a given flexibility, rigidity and durability. Metal bellows come in many types: rolled, hydroformed, chemically deposited, electroformed, the list is non-exhaustive.
[0023] Electroformed telescopic tubes are of particular interest. They have been manufactured fo...
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Abstract
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.
Description
technical field [0001] The invention relates to a watch case comprising a middle part, at least one opening of which is closed by a bezel, and / or a crystal, or by a back cover. At least one of the elements for closing said opening is connected to said central portion by a resilient metal member in the form of a ring or an annular frame and having a concave profile defined by a non-rectilinear wall profile of controlled thickness, the ends of which Parts are respectively connected to the middle part, the outer periphery of the closure element. Background technique [0002] It would be advantageous to move the crystal or back cover of the timepiece relative to the middle, and do so without compromising the tight sealing of the case, for example to improve shock resistance, or to provide new functions. The solutions proposed in the state of the art in this field are not satisfactory in this respect. [0003] Documents CH630220 and CH686600 describe devices for moving crystal ...
Claims
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Application Information
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