Mechanical Unknown Time Interval Measurement TRIZ Cases
- Crystal Resonator Frequency Correction for Temperature and Stress Drift
Uses resonance-mode ratios and electrical parameters to correct crystal frequency drift from temperature and mechanical stress without sensors.
- Spring-Loaded Chronograph Zeroing for Single-Press Reset
A compression spring mediates force to the zeroing lever, enabling reliable single-press chronograph hand reset with fewer parts and lower upkeep.
- Chronograph Barrel Winding Mechanism With Multiplicative Gear Train
A sliding, small-angle actuator and multiplicative gear train wind the chronograph barrel quickly without disrupting time measurement.
- Chronograph Zero-Reset Snail Cam for Precise Hand Positioning
A spiral cam track and guided hammer reset chronograph counters to zero precisely while preventing backward hand movement and uneven wear.
- Split-Seconds Chronograph Rocker Reset for Precise Counter Zeroing
A movable rocker lets a split-seconds chronograph counter rotate into its reset reference, improving zeroing accuracy without added reset complexity.
- Multi-Function Timepiece Crown for Independent Push and Rotation Control
A single timepiece crown combines axial pressing and rotation to actuate separate functions while reducing case openings, complexity, and sealing issues.
- Watch Crown Cam Return Mechanism for Neutral Position Control
Inclined tubular cams and a spring return a watch crown to neutral after actuation, enabling reliable multi-function timepiece control.
- Watch Crown Control for Independent Rotation and Push Functions
A single watch crown combines rotational setting with axial push actuation, reducing case complexity while preserving water resistance and clean styling.
- Seconds Hand Reset Mechanism With Spring-Loaded Hammer Restart
A spring-loaded hammer stores user input energy to reset and instantly restart a watch seconds hand without clutch wear or timing disruption.