Timepiece movement comprising an adjustment and winding mechanism comprising an internal stop for positioning a winding rod
The introduction of an internal positioning stop in watchmaking movements addresses issues of gear wear and complex machining, resulting in improved reliability and reduced maintenance needs.
EP4530757A1Pending Publication Date: 2025-04-02BLANCPAIN SA
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Patent Information
- Application Number
- EP2023200831
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-09-29
- Publication Date
- 2025-04-02
AI Technical Summary
Technical Problem
Existing watchmaking movements with adjustment and reassembly mechanisms face challenges such as premature wear of gears due to sensitive 90° engagements, require complex machining for external stops, and generate filings from steel-winding rod contact with platinum.
Method used
A watchmaking movement with an internal positioning stop that axially stops the winding up in the reassembly position, eliminating the need for external stops and reducing wear by ensuring optimal gear engagement.
Benefits of technology
The internal positioning stop simplifies design and manufacturing, improves gear engagement, reduces wear, and eliminates filing generation, enhancing the reliability and longevity of the watchmaking movement.
✦ Generated by Eureka AI based on patent content.
Abstract
One aspect of the invention relates to a watch movement (100) comprising a setting and winding mechanism (10) of said watch movement (10), the setting and winding mechanism (10) comprising a winding stem (12) of axis of revolution (X), having a first end (12.6) cooperating with a crown (50) and a second end (12.1) opposite the crown (50), said winding stem (12) being mobile in rotation and translation about the axis of revolution (X) between a first axial position (T1) of the winding stem (12) in which the rotation of the winding stem (12) ensures the winding of the watch movement (100), and a second axial position (T2) of the winding stem (12) in which the rotation of the winding stem (12) ensures the setting of a function of the watch movement (100), characterized in that the setting and winding mechanism (10) includes a positioning stop (30, 30') configured to cooperate by contact with said second end (12.1) of the winding stem (12) to axially stop said winding stem (12) in said first axial position (T1).
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