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Patent Searching and Data


Title:
METHOD FOR MAKING A SWINGING BODY CONSISTING OF COMPOSITE MATERIALS
Document Type and Number:
WIPO Patent Application WO/2014/154705
Kind Code:
A3
Abstract:
The invention relates to a method for making a swinging body (1a; 1b) for an automatic winding mechanism of a watch, comprising a central portion (3a; 3b; 3c) made of a first composite material and a heavy portion (5a; 5b; 5c) made of a second composite material filled with heavy-metal particles, comprises the following steps: forming the central portion (3a; 3b; 3c) with a side ridge and a rabbet by injecting the first composite material into a mold; over-molding the heavy portion (5a; 5b; 5c) onto the central portion by injecting a second composite material into a mold containing the central portion so that the second composite material fills the rabbet as well as a gap underneath the side ridge, and so that the side ridge is embedded in the second composite material and the central portion and the heavy portion are in mutual engagement.

Inventors:
STRAHM FLORENT (CH)
KAELIN LAURENT (CH)
TINGUELY XAVIER (CH)
CAPPADONA GIUSEPPE (CH)
Application Number:
PCT/EP2014/055984
Publication Date:
December 04, 2014
Filing Date:
March 25, 2014
Export Citation:
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Assignee:
ETA SA MANUFACTURE HORLOGÈRE SUISSE (CH)
International Classes:
G04B5/16
Foreign References:
EP2482142A12012-08-01
DE1944849A11970-04-23
CH288208A1953-01-15
EP2592498A12013-05-15
Attorney, Agent or Firm:
ICB INGÉNIEURS CONSEILS EN BREVETS SA (Neuchâtel, CH)
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