System for attaching a wristlet strand to a case

Patent metadata

Field	Value
Publication number	US-9342052-B2
Application number	US-201414219548-A
Country	US
Kind code	B2
Filing date	Mar 19, 2014
Priority date	Mar 19, 2013
Publication date	May 17, 2016
Grant date	May 17, 2016

Abstract

Wristwatch including a case in or on which there is arranged a first open housing, a wristlet provided with one end arranged in the first open housing, and a fastening means for holding the end of the wristlet in the first housing. The fastening means includes a second housing opening onto the first housing and a fastening element arranged in the second housing and occupying one part of the first housing. The wristwatch further contains a means of retaining the fastening element.

First claim

The invention claimed is:

1. A wristwatch including a case in or on which there is arranged a first open housing, a wristlet provided with an end arranged in said first open housing, and a fastening device to hold said end of the wristlet in said first housing, said fastening device including a second housing opening onto said first housing and a bar arranged in said second housing and occupying one part of said first housing,
wherein said wristwatch further includes a radial retainer and an axial retainer to retain said bar,
wherein the radial retainer is formed by a median horn arranged in said first housing, the median horn including a channel portion,
wherein said first housing is a slot made in said case, said second housing is a groove, and said median horn is concealed inside said slot, and
wherein a perimeter around a cross-section that is made in a direction perpendicular to a longitudinal axis of said bar is enclosed in part by said channel portion of said median horn and in part by said groove.

2. The wristwatch according to claim 1 , wherein a diameter of said channel portion matches that of a pin of said bar.

3. The wristwatch according to claim 2 , wherein said axial retainer is formed by a collar at one end of the bar and a cap assembled to the other end of the bar and by lateral stop surfaces of said first housing.

4. The wristwatch according to claim 3 , wherein said wristwatch further includes lateral recesses facing said lateral stop surfaces.

5. The wristwatch according to claim 4 , wherein a third housing is arranged in said end of the wristlet facing said second housing, and said bar is also arranged in said third housing.

6. The wristwatch according to claim 1 , wherein said channel portion and said groove are semi-cylindrical.

7. A case for a wristwatch,
wherein said case includes a first housing, a second housing opening onto said first housing, and a central radial retaining element, and
wherein said first housing is a slot, said second housing is a groove, and said central radial retaining element is a median horn which is concealed in said slot and in which there is arranged a channel portion, and
wherein a bar is arranged in said groove and occupies one part of said slot, and a perimeter around a cross-section that is made in a direction perpendicular to a longitudinal axis of said bar is enclosed in part by said channel portion of said median horn and in part by said groove.

8. The case according to claim 7 , wherein said channel portion and said groove are semi-cylindrical.

Assignees

• Eta Sa Mft Horlogere Suisse

Inventors

• Bettelini Marco
• Gruenig Daniel

Classifications

• G04B37/1486 Primary

  Arrangements for fixing to a bracelet (building watches into bracelets (montre marquise) G04B37/12; arrangements for hanging pocket- or other watches on chains G04B37/1446) · CPC title

• G04B37/00

  Cases {(cases with a special shape G04B45/0069; ornamentation of the case G04B47/04; cartridges A45C11/00 - A45C11/38)} · CPC title