Watch Movement Fluid-Driven Vane Indicator
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Solution Overview
Problem
Existing watch movement technologies face challenges in providing an operating indicator for the regulating organ without increasing inertia, which is crucial for high-frequency or reduced-size escapements, and existing solutions do not effectively exploit natural frequencies for timekeeping.
Innovation Solution
A timepiece movement with a regulating member, such as a balance wheel or tuning fork, surrounded by a fluid, features a vane and indicator member in kinematic connection, allowing fluid disturbances to drive the indicator without affecting the oscillator's operation, and optionally includes structures to enhance fluid flow and visibility through optical devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a colored element is added to the anchor to provide an operating indicator, then visibility of the regulating organ operation is improved, but the inertia of the anchor increases and more energy is required for its operation
Solution Approach 1:
The patent introduces an intermediary fluid medium (air or other gas) that transmits the oscillation information from the regulating organ to the indicator vanes. The fluid acts as a mediator that carries the motion energy without requiring direct mechanical connection, thus avoiding adding mass to the anchor while still providing visible indication through the vanes that move with the fluid disturbances.
Solution Approach 2:
The indicator vanes create a visual copy or representation of the regulating organ's oscillation without being part of the oscillating mass itself. The vanes replicate the motion pattern through fluid coupling, providing a visible indication that mirrors the anchor's operation without affecting its inertia or energy requirements.
2Loss of information
If mass is added to the anchor for indication purposes, then visibility is improved, but the escapement frequency must be reduced or the size increased
Solution Approach 1:
By using the fluid as an intermediary, the system decouples the indication function from the oscillating mass. This allows high-frequency operation to be maintained while still providing visual indication, as the vanes respond to fluid disturbances rather than being part of the critical oscillating path.
3Loss of information
If a conventional anchor with colored element is used, then indication is provided, but energy consumption increases
Solution Approach 1:
The fluid intermediary transfers motion energy from the regulating organ to the indicator vanes with minimal energy loss. This indirect coupling requires less energy than directly adding mass to the anchor, as the fluid efficiently transmits the oscillation information without requiring additional driving force.
Solution Approach 2:
The vanes create a visual copy of the oscillation motion without requiring the same energy investment as moving the actual anchor mass. The indication system consumes less energy because it replicates the motion through fluid coupling rather than directly moving heavy components.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution provides a visible indicator of the oscillator's operation without increasing inertia, allowing for efficient energy use and enhanced visibility of the movement's operation, suitable for high-frequency or reduced-size designs.
Implementation Method 1
the oscillations of the oscillator disturb said fluid in a zone adjacent to said oscillator
Implementation Method 2
This vane can be carried for example by a lever, a rod, or a paddle wheel, and is defined as being an element capable of being moved by movements of the fluid in which it is located
Data Source
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Figure 5~6
AI summary
A movement (1) for a timepiece comprising: - a regulating member (3) including at least one oscillator (5) arranged to perform oscillations, the oscillator (5) being surrounded by a fluid such that the oscillations of the oscillator (5) disturb said fluid in a zone (9) adjacent to said oscillator (5). According to the invention, the movement (1) further comprises: - at least one vane (11) located at least partially within said zone (9); - an indicating member (17) kinematically connected to said vane.