Inexpensive timepiece barrel

The barrel (1) has a drum (2) that is coaxial to barrel arbour (3) in a direction to confine a barrel spring (4) which is hooked to drum and core (5). Core is pivoted in a bore of drum. Core that is provided with first stopping surface (51) limits the axial travel of core in a direction, and second...

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Bibliographische Detailangaben
Hauptverfasser:	CATTIN, CHRISTOPHE, LOEFFEL, RAPHAEL, FEUSIER, GAEL
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HOROLOGY MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL MECHANICALLY-DRIVEN CLOCKS OR WATCHES PHYSICS TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
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Beschreibung
Zusammenfassung:	The barrel (1) has a drum (2) that is coaxial to barrel arbour (3) in a direction to confine a barrel spring (4) which is hooked to drum and core (5). Core is pivoted in a bore of drum. Core that is provided with first stopping surface (51) limits the axial travel of core in a direction, and second stopping surface (52) opposite to first surface limits the axial travel of core. Drum is imprisoned between stopping surfaces, and pivots freely about core. First core limiting surface and second core stopping surface are formed by rivet seam (57) which projects radially relative to bore. An independent claim is included for a method of assembling timepiece barrel in receiving structure. Barillet d'horlogerie (1) avec un tambour (2) coaxial à un axe de barillet (3) selon une direction (D) agencé pour enfermer un ressort de barillet (4) accroché audit tambour (2) et à une bonde (5) coaxiale audit axe de barillet (3) et guidée sur lui. Ladite bonde (5) pivote dans un alésage (21) dudit tambour (2), et comporte une première surface d'arrêt (51) limitant la course axiale, selon ladite direction (D), de ladite bonde (5) par rapport à une face interne (22) dudit tambour (2), et une deuxième surface d'arrêt (52) opposée à la précédente (51) et limitant la course axiale, selon ladite direction (D), de ladite bonde (5) par rapport à une face externe (23) dudit tambour (2), lequel est monté, d'une part prisonnier entre ladite première surface d'arrêt (51) et ladite deuxième surface d'arrêt (52), et d'autre part libre en pivotement autour de ladite bonde (5).