Horology: time measuring systems or devices – Cases – Wrist worn
Patent
1991-11-05
1992-09-08
Miska, Vit W.
Horology: time measuring systems or devices
Cases
Wrist worn
224167, G04B 3700, A44C 514
Patent
active
051464373
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a bracelet watch comprising a watch of which the case has at least two parallel opposite sides each provided with assembly means removably fitting into a metallic element reinforcing a free end of a flexible bracelet.
Bracelet watches of this type are known, in which the removable assembling of the bracelet and the watch makes it possible to fit different types of bracelets to a given watch. The interchangeability of the bracelets enhances the appearance of the bracelet watch and enables the user to vary the color, particularly, of the bracelet fitted to the watch.
In order to provide interchangeability of bracelets, the conventional technique consists in securing each free end of the bracelet to a metallic element in the form of a short rod provided with an axial depression in which the free end of the bracelet is folded into a loop around an assembly screw. The free end of the bracelet reemerges from the depression of the metallic short rod in order to be sewn on the non-exposed face of the bracelet.
The metallic short rod also has a longitudinal leaf on its outer face, provided with a protuberance at its free end which can be retracted into the short rod so as to be capable of providing a pawl link with a longitudinal groove made in a drilling on one side of the case of the watch.
The bracelet thus obtained has, in the vicinity of the metallic short rod at the end, an excess thickness due to the end loop for the assembly. This excess thickness may be uncomfortable on the wrist of the user. The metallic short rods are made from solid metal, for example solid gold, the manufacture and the fitting of which on an end of the bracelet are relatively complicated to achieve.
Moreover, the assembling of a metallic short rod and the watch prevents the free rotation of the short rod and thus of the bracelet inside the corresponding drilling of the watch, due to the design of the pawl means.
The object of the present invention is to remedy the abovementioned disadvantages by producing a watch with removable bracelet, the system of assembling the watch and the bracelet being designed in a simple and original manner.
The bracelet watch according to the invention comprises a watch of which the case has at least two parallel opposite sides in order seen each [sic] with an assembly means removably fitting into a rigid element reinforcing a free end of a flexible bracelet. The rigid element may be metallic and comprises an elastic tubular blade and a sleeve, one end of which is closed. The tubular blade has a toothed axial slot in which one free end of the flexible bracelet is inserted. The sleeve has an axial slot emerging at the open end of the sleeve and the opening of which is larger than the thickness of the bracelet in order to permit the passage of the latter. The internal diameter of the sleeve is smaller than the external diameter of the tubular blade, such that the axial insertion of the tubular blade into the sleeve requires an elastic deformation of the blade, giving rise to blocking of the free end of the bracelet by pinching of the toothed slot.
The elastic tubular blade may be replaced by a jaw of substantially cylindrical form, the opening of which is longitudinal. The two toothed elements of the jaw preferably form a single assembly and are connected to each other by means of a flexible longitudinal tab opposite the opening of the jaw. For assembly, one free end of the bracelet is inserted into the jaw via the longitudinal opening, the toothed elements making it possible to retain the end of the bracelet. The closed jaw is inserted axially in the sleeve in the same manner as the tubular blade.
The assembly means of the watch case comprises a drilling with a diameter which is substantially identical to that of the sleeve. The wall of the drilling has an axial slot passing through it, the opening of which is larger than the thickness of the bracelet in order to permit its passage when the sleeve is fitted into the drilling of the case.
The invention will be better understoo
REFERENCES:
patent: 1775174 (1930-09-01), Roy
patent: 2148629 (1939-02-01), Levesque
patent: 3589575 (1971-06-01), Axler
patent: 4401388 (1983-08-01), Mearns
patent: 4432655 (1984-02-01), Wollman
patent: 4664533 (1987-05-01), Wollman
Boucheron
Miska Vit W.
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