Contact Driving Mechanisms TRIZ Cases
- Worm-Driven Earthing Switch With Freewheel End-Position Control
A partially toothed worm wheel and re-engagement device give high-voltage switches secure end-position control without complex end switches.
- Rotatable Power Tool Switch Layout for Slim Dust-Resistant Handles
A rotatable switch layout moves the switching device into the housing, cutting dust sensitivity while enabling a slimmer, safer power tool handle.
- Earthing Switch Worm Wheel Freewheel for Precise End Positioning
A partially toothed worm wheel and re-engagement device define end positions, enable freewheel action, and prevent overtravel in high-voltage switching.
- Crankshaft Drive for High-Voltage Breaker Open-Close-Reopen
A unidirectional crankshaft drive replaces complex spring accumulators to deliver millisecond open-close-reopen switching in high-voltage breakers.
- Three-Position Disconnector Switch Piston Venting for Heat Dissipation
Inner and outer piston surfaces with airflow holes improve heat dissipation in a three-position disconnector switch, reducing overheating.
- Planetary Gear Drive for Compact Vacuum Interrupter Switching
A threaded sun gear and planetary drive convert rotation to pushrod motion, shrinking vacuum interrupter drives while enabling synchronized switching.
- Geneva Ring Tap Switching for Reliable Multi-Position Changers
A Geneva ring and internal driving wheel switch many tap positions with lower moving mass and bearing-reduced friction for reliable operation.
- Scissor-Link Actuator for Manual Vacuum Interrupter Opening
A nested scissor link lets operators manually break a magnetic latch and open a vacuum interrupter without disrupting automatic closing.
- Intermittent Gear Switch Mechanism for Precise Contact Positioning
An intermittent gear and starwheel mechanism fixes switch contact positions without extra overlap, cutting precision demands and assembly complexity.