DE7107547U - WATCH CASE - Google Patents

Description

. . . . ! . ! . System:

KARL UTZ 753 PFORZHE.M. 8.2.1971

PATENT ENGINEER BahnhofitraBe 11, Poilfadi 1829

Phone (07231) 5060

My reference: 4 Q1 6

Utility model

company

Richard Pfisterer Pforzheim

Waterproof watch case

The utility model concerns a waterproof watch case, in particular a watertight setting for the watch glass in the case bezel. Saber can be the watch case in itself As is known, with a round or a facon glass, do the same his ünterrajid provided with a reinforcement ring and by a be caught in a snap ring seated in an inner ring groove of the watch case.

According to the innovation, the inner circumference of the bezel and the outer circumference of the watch glass have mutually corresponding, mostly step-shaped, annular surfaces, whereby the lower further, cylindrical annular surfaces of the ohrglass when it is inserted from behind fit into the lower further, cylindrical annular surfaces of the bezel with price point and the same is reinforced by the reinforcement ring sitting in the lower, inner edge of the watch glass. The watch glass is on the one hand covered from above on its flat ring surface by that of the bezel and on the other hand on its flat lower edge surface by the upper side surface of a snap ring seated in an annular groove on the inner circumference of the bezel.

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Due to the press fit between the lower, cylindrical ring surfaces of the bezel and the watch glass, the latter is absolutely watertight in the watch case. In addition, the crystal between its upper, flat annular surface and the lower planar annular surface of the bezel from above j / and between its Unt he rand sf pool and the top of the Einsprengringes from below, that is secured between two immovable holders against axial displacement in the bezel .

( The subject of the utility model is on the drawing

shown in four figures. Show it:

Fig. 1 the holder of the watch glass in the watch case in radial section

Fig. 2 to 4 different embodiments of applicable Snap rings in plan view.

In the embodiment shown, the watch glass 1 has a stepped outer circumference with an upper, smaller cylindrical ring surface 2, a flat ring surface 3 adjoining it at the bottom and outwards and a larger cylindrical ring area 4 adjoining it on the outside and downwards. The 'watch glass 1 is inserted from behind in a watch case 5, the bezel 6 of which on its inner circumference the watch glass circumferential surfaces 2 to 4 corresponding counter surfaces, namely an upper, narrower, cylindrical // or conical ring surface 7, 7 ¹ , followed by a bottom outwardly flat ring surface θ and then a further cylindrical ring surface 9 on the outside downwards. There is little play between the upper, more closely spaced annular surfaces 2 and 7 or 7 '. The diameter of the lower, further, cylindrical annular surfaces 4 and 9 is such that the watch glass 1, after it has been inserted into the bezel 6, is held therein with a press fit and is therefore absolutely watertight. Here, the interference fit by d <m in the lower band of the ear 1o glass 1 is used Ar nierungtiring 11 amplifies.

Bein SineeteM ^ fa * watch glass 1 ^from behind into the bezel

its flat annular surface 3 comes with equal arranged ring [J surface 8 of the bezel 6 for conditioning and thereby gehaltsii from above. ϋϋίϋ1 "1 / β1" Γ uiitsr the same Unterraxid Iq of the watch glass it 1 sits in an annular groove screwed into the inner circumference of the bezel 6

a snap ring 12, which errand the watch glass 1 on its Uiit subordinated. The watch glass 1 is in this way from above and below between immovable means against axial displacement in the Bezel 6 of the watch case 5 secured.

The snap ring 12 can have any of the shapes shown in Figures 2 to 4, i.e. an open, be outwardly spreading ring, which according to Fig. 2 have holes at its ends, according to Fig. 3 hooks and circular or after Fig. 4 can be designed pcfygonal. The cross-sections the snap rings can be flat or circular.

Claims (4)

Schut ζ an s ρ r U c h e 1. Watertight Araband watch case, especially watertight frame of the watch glass in the watch case bezel, that's what you want Watch glass designed in a manner known per se from round or facon glass, provided with a reinforcement ring on its lower edge and is underpinned by a snap ring seated in an inner ring groove of the watch case, characterized in that the Outer circumference of the watch glass (1) and the inner circumference of the bezel (6) have corresponding annular surfaces (2, 3, 4 or 7, 8, 9) arranged in steps to one another, the lower, larger cylindrical hanging surfaces (4 and 9) when inserting dee ι watch glass (1) from behind into the bezel (6) with a press fit into each other sit and form a watertight seal between the watch glass (1) and watch case (5). 2. Waterproof wrist watch case according to claim 1, characterized in that the watch glass (1) with an upper, smaller standing surface (2), a downwardly outwardly adjoining, flat annular surface {Z>) and a larger outwardly downwardly adjoining it cylindrical single surface (4), while the watch case (5) on the inner circumference of its bezel (6) corresponding to the original glass circumferential surfaces (2 to 4), an upper, smaller cylindrical or conical ring surface (7 or 7 ¹ ) aanten on it außeif then has a larger cylindrical annular surface (9). 3. Waterproof wrist watch case according to claim 1 and 2, characterized in that one in the lower edge of the watch glass (1) inserted reinforcement ring (11) is dimensioned so that it supports the aforementioned press fit of the watch glass (1) in the bezel (6) . 4. Waterproof wrist watch case according to claim 1 to 3, characterized in that the watch glass (1) with its flat ring surface (3) on the identically arranged ring surface (8) of the Bezel (6) from above and on its flat Unterrandflächs of a is just below a set Einsprengrings (12) held in an inner annular groove of the watch case (5) from below and is secured against axial displacement in iadurch the bezel (6). The representative? Pat ent-Ing eni eur