US1634214A - Assembling device for bridges, plates, and the like in timepiece movements, counting mechanisms, and like apparatus - Google Patents

Description

2 1634,214 .Im a, 1921 Q Ros" ASBIIBLING DEVICE FOR BRIDGES, PLATES, AND THE LIKE IN TIIBPIBCE NOVBIENTS, COUNTING MECHANISMS, AND LIKE APPARATUS Filed May 10, 1926 g 6 5 I 2 6 5 l J/ I l y 7 l I 1 far/ I 1 6 s 1 5 e 5 Fig.4.

Z77/Q/2r0r CT f/ afiaf 1 Patented June 28, 1927.

UNITED jsr TEs PATENT. OFFICE.

CHARLES. ROSAT, or Bonner, SWIT ZERLA ZENITH, SUCCESSEUR DE FABRIQUES ND, ASSIGNOR TO FABRIQUES DES MONTRES DES MONTE-ES ZENITH GEORGES FAVRE- TACOT & '00., or. LE LocLE, swrrzERLAnn.

nssnmnmno'nnvicn Eon BRIDGES, PLATES, AND THE LIKE IN TIMEPIECE MovE- 'MENTS, corm'rrive MECHAN Application fil ed May 10, 1926, Serial No The present invention relates to an assembling device for bridges, plates, and the like in timepiece movements, counting mechanisms and like apparatus.

This device comprises, on the one hand, a setting pillar fastened in one ofthe two components to be assembled and freely engaging the other component and on the other hand, a combined distancing and holding clasp like member formed of one and the same steel ribbon with'a rolled portion pivotally arranged around said pillar to constitute a distanceipi'ece and two spring ears to constitute a clasp adapted to be turned over said components;

An embodiment of this device is shown diagrammatically and by way of example in the accompanying drawing, in which Fig. 1 is a plan view,

Figure 2 is a side view, looking in the direction of the arrows on the line A-A of Figure 1, and

Figure 3 is a side'sectional view taken on the line B-B of Figure 1 looking in the direction of the respective arrows.

Figure 4 shows in plan a development of the clasp.

The embodiment illustrated serves to assemble two plates 1 and 2; it comprises a cylindrical pillar 3 engaging with one of the plates, 1 for example, into which it is simply forced and thus fixed, and with the second plate 2 into which it penetrates freely, but without play. i

The distance piece 4 between the plates 1 and 2 is formed of a steel ribbon of constant width, rolled around the pillar about which it can rotate; an extended part of this ribbon has two cars 5 (Figure 4e) bent at right angles to the ribbon, as shown in Figures 1 to 3 so as to form a clasp with elastic limbs, acting as a holding member. This member could instead be independent of the proper distance piece.

The combination of the distance piece and the holding member form a species of clasp of which the two ears 5 engage in the re-' cesses 6 and slots 7 formed in the plates. The bottom of the recess in the plate 2 has a hollow 8 forming a retaining notch in which engages the corresponding ear of the clasp which is thus maintained locked for assembling the plates.

ISMS, AND LIKE APPARATUS.

. 108,184, and in Switzerland May 26, 1925.

The method of using this embodiment is easily understood. The pillar being forced into the plate 1, the clasp is first slipped over the pillar and then the plate 2, the clasp being finally closed by rotating same aboutthe pillar so that its ears are turned over the plates. By' employing a sufficient number of such devices, the two plates are assembled in a perfectly positive manner. For disengaging the plates, it is only neces sary to open the clasp.

The clasp being closed, none of the parts of the device illustrated project beyond the limits of the plates, owing to the recesses 6 and slots 7 in which are located the ears 5.

The described device can be nnade by stamping outa steel lamina of the profile shown in Figure 4:, the part 4 then being rolled and the two ears 5 bent as shown in the other figures.

The described device has great advantages over certain known devices for the same pur pose, in particular over those comprising a pillar with two shoulders against which the components are applied by nuts screwing onto the pillar, the distance between the two shoulders determining the distance between the components. Among these advantages the following may be mentioned.

The pillar is formed of a single cylinder, without milling or shoulders and drawn from a simple wire drawn bar.

The use of assembling screws, pins, washers, etc., is dispensed with.

N o displacement of one of the components relative to the other can take place, the holes receiving the pillar being produced exact in diameter and position by stamping.

The distance between the components is rigorously exact and regular, being determined by the width of the ribbon forming the distance piece; this width is perfectly constant and regular, the ribbon being made by stamplng.

The manufacture is very exact, very easy, very economical, all shoulder turning oper ations being avoided and replaced by stamping operations which are more exact and less costly.

The assembly and disassembly of the components is very rapid, exact, easy and economical, etc.

The form and arrangementof the various parts of the clasp can diiter from those illustrated. The holding member can engage the components differently, projecting beyond their limits, etc.

hat I claim is:

An assembling device for bridges, plates and the like in time piece movements, count ing mechanisms and like apparatus, comprising in combination With a setting pillar W between the components to be assembled a combined distancing and holding clasp like member formed of one and the same steel ribbon with a rolled portion pivotally ar ranged around said pillar to constitute a distance piece and two spring ears to constitute a clasp adapted to be turned over said components.

In Witness whereof I have hereunto signed my name this 29th day of April, 1926.

CHARLES ROSAT.

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