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Fusee system

A conical wheel and gear technology, applied in the field of uniform conical wheel system, can solve the problem of large space occupied by the movement

Active Publication Date: 2016-06-01
CHRONOMETRIE FERDINAND BERTHOUD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This intermediate mechanism also requires a lot of space in the movement

Method used

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  • Fusee system
  • Fusee system
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Examples

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Embodiment Construction

[0019] figure 1 Shown is a chime system 1 according to a first embodiment of the invention, connected by a chain 3 to a barrel system 2 . In order not to make too much content in the drawings, reference signs are not rigidly marked in each figure. The details of barrel system 2 are not part of the invention and are therefore not described in detail. It suffices to note that the chime system 1 can be connected to any suitable barrel system. The chine wheel system 1 comprises a chime wheel 5 generally having the shape of a cone and having a helical groove on which the chain 3 is wound, as is generally known. The chine wheel system 1 also comprises a chine wheel 7, which powers the finishing element (not shown), and a ratchet wheel 9, which pawl wheel is positioned by locking pawls 11 And intended to be driven by an intermediate movement connected to a winding rod of a timepiece (not shown).

[0020] The conical wheel system 1 rotates around a support shaft 13, the end of whi...

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Abstract

The invention relates to a fusee system (1) for a timepiece including: a supporting pin (13); a fusee (5) pivoted about said supporting pin (13) and suitable for receiving a chain (3) around the perimeter of said fusee (5). According to the invention, the supporting pin (13) is intended for being secured by a first end to a case element of said timepiece.

Description

technical field [0001] The invention relates to the field of watches and clocks. In particular, the invention relates to a chime wheel system. Background technique [0002] Gyener systems have been used in watches of the past to compensate for variations in the torque of the prime mover according to the degree of release of the prime mover. In fact, it was not known at the time to propose a spring with a smooth torque characteristic under the premise of acceptable dynamics. [0003] More recently, to take into account the torque variations still present in modern prime movers, the yoke system has been seen again in complicated watches. For example, document EP1970778 in the name of Breguet of Switzerland discloses a timepiece comprising this modern type of chime wheel system. However, Breguet's chime wheel system takes up a lot of space in the thickness of the movement and requires an additional bridge to support the chime wheel system. [0004] In addition, most chime m...

Claims

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Application Information

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IPC IPC(8): G04B1/22
CPCG04B1/22
Inventor 大卫·康多帕斯卡·普罗吉恩-保罗·杜克莱斯特史蒂夫·迪索勒斯西尔万·佩雷
Owner CHRONOMETRIE FERDINAND BERTHOUD
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