IP Library Granted Patent US 9,451,812
Granted Patent B2
US 9,451,812 · App. 14/863,744 · Granted Sep 27, 2016

Bracelet clasp

Inventors: Cedric Kaltenrieder (Courtelary, CH); Jean-Marc Von Allmen (Boudry, CH)
Assignee: The Swatch Group Management Services AG
A44C5/24
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Quick Facts
Patent No.
US 9,451,812
App. No.
14/863,744
Granted
Sep 27, 2016
Kind
B2
Abstract

A bracelet clasp includes three strips, and a cover hinged to one of the strips. The clasp is provided with first and second push-pieces and with a safety device preventing lateral movement of the cover causing the clasp to unlock when pressure is simultaneously exerted both on a push-piece and on a flap of the cover opposite said push-piece. The safety device includes a spacer being received between the cover flaps, the ends of the spacer abutting against the cover flaps so as to prevent lateral movement of the cover causing the clasp to unlock when pressure is simultaneously exerted both on a push-piece and on a flap of the cover opposite the push-piece.

Claims (13)

1. A bracelet clasp comprising:

a first rigid strip, wherein a first end of the first strip is hinged on a first end of a second folding strip configured to receive a first bracelet strand at a second end of the second folding strip, and wherein a second end of the first strip is hinged on a first end of a third folding strip from which extend first and second branches to which is hinged a cover provided with first and second flaps extending perpendicularly with respect to the cover, and a mechanism to hold a second bracelet strand, the third strip partially covering a second end of the second strip when the clasp is in a closed position,

first and second pus -pieces integral with the first and second branches,

a locking mechanism configured to hold the third strip locked on the first strip when pressure is not simultaneously exerted on the push-pieces, and

a safety device preventing lateral movement of cover causing the clasp to unlock when pressure is simultaneously exerted both on one of the push-pieces and on one of the flaps of the cover opposite the one of the push-pieces,

wherein the safety device includes a spacer carried by the second strip and being received between the flaps of the cover, ends of the spacer abutting against the flaps of the cover so as to prevent lateral movement of the cover causing the clasp to unlock when pressure is simultaneously exerted both on one of the push-pieces and on one of the flaps of the cover opposite the one of the push-pieces.

2. The bracelet clasp according to claim 1 , wherein the spacer is fixed to the second end of the second strip.

3. The bracelet clasp according to claim 1 , wherein the spacer is used as an anchorage point for the first bracelet strand.

4. The bracelet clasp according to claim 1 , further comprising a second locking mechanism to hold the second strip locked against the first strip when the clasp is in a closed position.

5. The bracelet clasp according to claim 1 , wherein the locking mechanism includes, on the one hand, a first pair of catches integral with the first strip, and on the other hand, a second pair of catches integral with the third strip.

6. The bracelet clasp according to claim 5 , wherein the second pair of catches is integral with the branches.

7. The bracelet clasp according to claim 1 , wherein the branches are laterally flexible over all or part of the length thereof.

8. A wristwatch including a bracelet provided with the clasp according to claim 1 .

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 24, 2025
From: THE SWATCH GROUP MANAGEMENT SERVICES AG
To: THE SWATCH GROUP RESEARCH AND DEVELOPMENT LTD.
Reel/Frame 071822/0977 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 24, 2015
From: KALTENRIEDER, CEDRIC; VON ALLMEN, JEAN-MARC
To: THE SWATCH GROUP MANAGEMENT SERVICES AG
Reel/Frame 036646/0965 →
Priority Claims (1)
EP 14190355 · Oct 24, 2014 · regional
Continuity (1)
Related Publication 20160113361A1 · Apr 28, 2016