CH625685A5 - Closure device for a bracelet, particularly for an electronic watch combined with a calculator - Google Patents

Abstract

The device is composed of a cover-closure (2) interacting with folding parts (3, 4). It comprises a snap hook for separating the cover-closure and the folding parts. <??>Such a separation is easy and particularly advantageous for an electronic watch combined with a calculator. It makes it possible to lay the watch flat on the table. <IMAGE>

Description

625685

Claims (2)

1. Device for closing a bracelet, in particular for an electronic watch associated with a calculator, consisting of a lid-clasp cooperating with leaflets, characterized in that it comprises a carabiner to separate said lid-clasp from said leaflets. 2. Closing device according to claim I, characterized in that the flexible part (9) of the carabiner is provided with two lateral tabs (90) which fit into two slots of one of said leaflets (3) and two other side lugs (91) acting as a stop for a bar (6) serving as a hinge pin between the cover-clasp and one of the leaflets. The subject of the present invention is a device for closing a bracelet, in particular for an electronic watch associated with a calculator, consisting of a cover-clasp cooperating with leaflets. There are calculators associated with wristwatches: the case includes a miniaturized keyboard (see for example US Patent No. 3803834) for entering data and instructions, and for correcting indications relating to time. To conveniently use this kind of watch-calculator, you must place the case in front of you, flat on a table. It is therefore necessary to separate bracelet and case. To solve this problem, and this is the object of the invention, a closure device is provided, characterized in that it comprises a carabiner to separate the cover-clasp and the leaflets. In the following, an embodiment of the device according to the invention is described in detail with reference to the drawing, where the single figure represents an overall view of the closure device in the open position. The closure device shown in fig. 1 comprises a cover-clasp 2 provided with a bar 6 on which the carabiner of a first leaflet 3 is attached: the latter is linked to a second leaflet 4 via an axis 5. One of the ends of the bracelet (not shown, but composed for example of links) is mounted on a bar placed in m a pair of holes 7 which make it possible to adjust the length of the bracelet. The other end of the bracelet is linked to the closure device by a pin driven into the curved part 42 of the leaflet 4. The cover-clasp 2 and the leaflets 3, 4 are arched and have the same radius of curvature. i5 The leaflet 3, made from stamped sheet metal with ribs to improve rigidity, cut and folded, has a carabiner whose flexible part 9 is also a folded sheet provided with two lateral tabs 90 which fit into two leaflet slots 3, tabs 90 which are folded after assembly to fix the: ii flexible part 9 on the leaflet 3: two other side tabs 91 act as abutment for the bar 6 and can pass freely in slots 31 when presses on the flexible part 9. The axis 6 is trapped between a hook 30 terminating the leaflet 3 and the legs 91. The leaflets 3 and 4 are connected by a hinge of well-known construction, the leaflet 3 rotating around the axis 5 which is integral with the leaflet 4; the latter has two side recesses 40 in which the tabs 90 are housed when the device is closed. A folded tab 41, placed in the center of the leaflet 4, engages, 3o when closing the device, on the outer surface of the hook 30 and locks it. The carabiner allows the bracelet to be detached and the case to be placed flat on a table. R 1 drawing sheet