Title:
ひげゼンマイ付きテンプの調速機とその製造方法
Document Type and Number:
Japanese Patent JP5122073
Kind Code:
B2
Abstract:
The spring (10) has windings that are made of a single band extending from an inside curve (11) to an outside curve (14). The inside curve is extended by a self blocking washer (17) that allows the spring to be fixed on axis (9) of a balance-wheel. A rectangular section having a non-uniform thickness (e) is presented between an attachment to a center and an attachment to outside. An independent claim is also included for a method of manufacturing a hair-spring from a board in an amorphous or crystalline material.
Inventors:
Conus, Thierry
Trumpy, Casper
Trumpy, Casper
Application Number:
JP2005518308A
Publication Date:
January 16, 2013
Filing Date:
February 02, 2004
Export Citation:
Assignee:
ETI SA Manufacture Hollogea Switzerland
International Classes:
G04B17/06; G04B17/34; G04D3/00
Domestic Patent References:
| JP1116328A | ||||
| JP11194174A |
Foreign References:
| US0209642 | ||||
| US3186157 | ||||
| US20020115016 | ||||
| WO1999012080A1 |
Attorney, Agent or Firm:
Hirofumi Mimata