Horology: time measuring systems or devices – Cases – Wrist worn
Patent
1986-11-19
1988-05-31
Miska, Vit W.
Horology: time measuring systems or devices
Cases
Wrist worn
24 71J, 224174, 224176, G04B 3700, A44C 500, A43C 1100
Patent
active
047486040
DESCRIPTION:
BRIEF SUMMARY
This invention relates to an articulated device, designed to be inserted in the strap or bracelet, carrying a wrist watch in order to permit to increase the length of said strap, as the user has to take off the watch so as to allow that the strap together with the watch can be slipped off along the hand, and taken off. Said articulated device is maintained in its closed condition by an automatic locking means provided with a manually controllable realising means.
Devices of this type are already known, applied to metal link strap or bracelets for ladies' or men's wrist-watches, which are formed by links articulated to each other. Said known devices consist of three parts obtained by thin metal sheet, said parts being hinged to each other about parallel axes set at right angles to the strap center plane and which permit, owing to their zig-zag connection, to cause said parts to be superimposed upon each other by means of relative rotary movements in opposite directions, until they attain a use position, in which the parts are in a superimposed or accordion relationship so that the device has a minimum length, to an elongated position of maximum length, when the parts become substantially coplanar.
Said known devices are usually mounted in the central part of a strap or bracelet and therefore this latter must be necessarily cut in two lengths. One of each of said strap lengths is pivotally connected to one of the sides of the body of the watch, and the other to first and to the third element of the articulated device respectively.
The present invention concerns an improved articulated device having substantially an operating structure similar to that of the known devices but which has been modified so as to present the following avantages:
(a) The articulated device, in its operative condition, substantially cannot be seen by any observer, since it is hidden behind the watch body, while the strap or bracelet is formed by a sole continuous band or strip of links.
(b) The first part of the articulated device consists of two elements so shaped and designed as, to form a support and protection means for the watch, since the first element component consists of an annular peripheral frame to receive and to protect laterally the watch body, while the second element protects the bottom wall of the watch-case, where the inner mechanisms of the watch are placed.
(c) The articulated device includes also a safety locking means for said three elements in their closure positions, and which can be released only in the case that the wearer presses an outer control push button.
That prevents the very frequent inconvenience, that, after a sufficiently long time of use, the simple locking elastic hook means which is present in the known types of such devices, becomes inefficient so that the articulated device opens, so that the watch together with the strap can slip off the wearer's hand.
The safety locking means of the invention makes very difficult that the watch can be snatched from the wearer's arm by a thief, since the device of the invention is very strong on account of the aforementioned characteristics and purposes and since the watch together with the strap remains steadily and closely wound around the wearer's wrist.
These and other characteristics and advantages of the present invention will be better understood from the following description of two embodiments of the invention, reference being made to the accompanying drawings, in which:
FIG. 1 is a partial front view of a wrist-watch for a man, in the closure condition of the articulated device thereof;
FIG. 2 is a partial longitudinal side view showing the articulated device, of FIG. 1, connected to the watch, when the intermediate and the last elements of the articulated device have reached an intermediate position of the closure or opening cycle of said device;
FIGS. 3 and 4, when considered together, show the longitudinal sectional view, in enlarged scale, of the assembly shown in FIG. 1, said sectional view being taken on the center plane B--B;
FIG. 5 shows,
REFERENCES:
patent: 2169738 (1939-08-01), Moody
patent: 2429950 (1947-10-01), Weber
patent: 4330905 (1982-05-01), Wolfgang
Class S.p.A.
Miska Vit W.
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