Means for attaching a band to a watch case
AssigneeETA SA Fabriques d'Ebauches
InventorsFrancois Nikles, Gaston Gagnebin, Marco Bettelini
Life of this patent
Estimating the term…
Abstract
A watch case comprises a frame (5), a crystal (6) that may be welded or glued to the frame, and a base (13) that is fastened removably to the frame. The underside of the frame contains an undercut (16) that is covered by the base and that is shaped like the band end (2) which is inserted therein. The base includes at least one projection (17) shaped so as to pass through a matching opening (18) provided in the end of the band.
Claims18
A watch case comprising a crystal (6), a single piece watch frame (5) having an inner periphery surrounding and laterally confining a watch movement (7) equipped with hands (22), said frame having an outer periphery spaced from and extending parallel to said inner periphery and defined by a side (3) having no projections extending outwardly of said outer periphery in the plane of said frame and a base (13) fastened removably to the frame, with the bottom edge of said frame having two diametrically opposed undercuts (16) extending from said outer periphery toward said inner periphery by a distance less than the space between said inner and outer peripheries and shaped to accommodate one end (2) of a band, the shape of each said undercut being essentially the same as the shape of the band inserted therein, and said base being shaped to cover said undercuts when the case is closed, said watch case further comprising:
- at least one projection (17, 30) integral with the base and extending into each undercut and passing through a matching opening (18, 32) fashioned in the band end so as to fasten said end to the watch case when the base is applied to the underside of the frame.
A watch case of the type comprising a crystal, a watch frame for housing a movement equipped with hands, a base fastened to said frame;
- and a band, the improvement wherein:
- said frame comprises a continuous closed body for surrounding said movement, said frame having an inside surface defining a region in which said movement is located, a top side, a bottom side, and a continuous outside surface defining a frame periphery having no projections extending outwardly in the plane of said frame, said inside and outside surfaces being parallel and spaced apart;
- said crystal being attached to said top side of said frame;
- said base being removably fastened to said bottom side of said frame and said base being substantially flat where it contacts said frame;
- said band having first and second flat ends each having a hole therein;
- said frame being undercut at two diametrically opposed locations so as to form, with said base, two recesses, each defined by parallel flat surfaces of said frame and said base, extending inwardly from said outside surface toward said inside surface by a distance less than the space between said inside and outside surfaces for accommodating respective ends of said band;
- at least two projections extending from said base, each said projection extending into one of said recesses and one of said holes whereby the ends of said band are secured to said watch case when said base is fastened to said frame.
A watch case comprising a crystal, a watch frame having an inner periphery surrounding and laterally confining a watch movement equipped with hands, said frame having an outer periphery spaced from and extending parallel to said inner periphery, and a base removably fastened to the frame, said frame having a bottom edge with two diametrically opposed undercuts extending from said outer periphery toward said inner periphery by a distance less than the distance between said inner and outer peripheries and each shaped to accommodate one end of a band, the shape of each undercut being essentially the same as the shape of a band inserted therein, and said base being shaped to cover said undercuts when the case is closed, said watch further including at least one projection integral with the base and extending into each undercut and passing through a matching opening fashioned in the band end so as to fasten said end to the watch case when the base is applied to the underside of the frame.
Dependencies are inferred from the claim text.