Contact Driving Mechanisms TRIZ Cases

See how a mechanical contact structure with two pairs of first contacts ensures reliable power

See how a rocking lever and aligned contact assembly enable faster, more reliable contact switc

See how a single switch element covered in closed position enables both indirect actuation via

Rolling rollers on convex-concave cam disks give tap changers low-friction step indexing and reliable end-position locking without complex pawls.

Convex-concave cam disks and rolling engagement lock tap changer end positions precisely while reducing friction and jamming risk.

A shared sensor base links alignment and touch elements so furniture movement is detected reliably without separate zero-position adjustment.

An electromagnetic switch and thermistor simplify kettle temperature control, cutting circuit cost while enabling keep-warm and overheat protection.

Combined linear and rotational plate motion wipes the contacts to shift arcing away from critical surfaces and cut bounce, heating, and wear.

A motorized movable-contact mechanism shrinks changeover switch size while maintaining reliable high-current connection, disconnection, and installation.

An idle-stroke drive and spring-biased stop member hold the dual-separation position reliably without adding a separate blocking mechanism.

Two staged sheave mechanisms boost the driven shaft through its full motion, helping on-load tap changers complete switching in low-energy conditions.

A contact rod, pressing block, and reset element create a longer trigger stroke that resists vibration start-ups and extends microswitch life.

A multi-link operating mechanism increases circuit breaker opening distance while reducing spring and handle force in compact layouts.

A rotary energy-storage and locking mechanism cuts friction and complexity in on-load tap changers, improving transmission efficiency and maintenance.

An actuator with dual prongs and an under rocker gives a compact push-button switch long travel, low force, and easy monostable-bistable conversion.

Eccentric drive mechanisms replace toggle actuation to cut lateral forces, vibration, and wear in compact medium-voltage switching units.

Eccentric drive mechanisms replace toggle linkage to cut wear, vibration, and installation bulk in medium-voltage vacuum switching units.

A compensating spring coupling offsets shaft torsion delays in high-voltage breakers to keep spaced switching contacts synchronized.

A movable energy storage structure lets the spindle and connecting rod rotate oppositely, increasing contact opening without enlarging the switch.

Encoder-based feedback replaces mechanical step control in tap changers, simplifying maintenance while improving position monitoring and stop accuracy.

Rolling guides and a hingeless lever replace sliding cam transmission parts, cutting wear and preserving reliable contact separation at low temperatures.

A rotatable knob drives a slider across contacts to adjust lamp output while avoiding water vapor ingress and costly dial switch structures.

A shaped opening cam and pretensioned closing spring damp contact opening, preventing rod bounce and sparking in switching mechanisms.

Direct button stacking on a rigid substrate avoids through-holes, reducing panel defects, substrate damage, and circuit replacement difficulty.

A transmission rod and re-buckle linkage simplify rotary switch assembly while improving shaft synchronization, insulation spacing, and shock safety.

An insulating bush and cover separate the motor and steel gear to prevent electrical contact while preserving rigidity and manufacturing efficiency.