Elevators TRIZ Cases

A key extension engages an access mechanism to operate a landing door opening element.

A single sensor extracts vibration components to detect wire breaks in elevator ropes without complex multi-sensor arrays.

A plate assembly covers floor apertures and uses pressure sensors to detect physical obstructions on its surface.

Dual wireless transmitters replace traveling cables to ensure real-time safety information transmission in high-rise buildings.

A thermoplastic polymer matrix bonds steel or carbon fiber tension elements between inner and outer belt layers to create a flexible, durable suspension component.

Independent protection device executes self-diagnosis and controls power feeding via dedicated semiconductor lines, resolving reliability complexity trade-offs.

An elevator luminaire reflects light off an opposing wall to highlight vertical misalignment, preventing trip hazards without dazzling passengers.

Foldable legs transfer maintenance loads to the floor, preserving passenger space and structural integrity.

Polymer coating on the traction element reduces friction and extends component lifespan without external lubrication.

Spring assembly compensates for insulator expansion to maintain stable tightening torque and reduce maintenance intervals.

Material strips on the traction surface counteract uneven wear from pressure distribution variations.

A laser-equipped alignment tool uses rollers to track elevator guide rails for precise positioning.

A mobile robot gathers landing data and transmits elevator calls, overcoming hardwired sensor limits to optimize dispatch.

A safety control device detects personnel in elevator shaft areas to trigger speed reduction procedures.

Multi-dimensional sensor analysis detects short door reversal events missed by duration-based methods, improving health assessment reliability.

A controller assigns elevator service using dynamic priority numbers and real-time capacity monitoring.

Controller detects unavailable cars and reassigns alternatives via mobile notifications, reducing user wait times.

A single substrate manages multiple elevator safety functions through an independence assurance unit that monitors CPU memory access.

Integrated multimedia displays merge audio, video, and notice functions into single units to resolve interior design constraints in lift cars.

Clamping wheel set grips traction belt to move elevator car using stored mechanical energy, bypassing hoistway access limits.

Elastomeric matrix separates carbon filaments to prevent rubbing wear while maintaining structural stability under tension.

Releasing the brake lets gravity guide the car, avoiding peak current spikes from failed load weighing.

A control apparatus determines threshold loads based on counterweight balance to allocate elevators for minimal energy consumption.

Automated signal analysis replaces manual landing door switch checks, reducing maintenance time while maintaining detection precision.

A maintenance panel uses a position sensor to detect button actuation depth and control elevator travel speed.

A coupling device disconnects the brake release lever from the operating brake to prevent uncontrolled elevator car velocity during manual release.

A frictionless electronic safety actuator uses a constrained magnetic plate to move a linkage without guide rail contact.

Spring-loaded pivoting arms clamp rollers onto vertical guides to maintain braking reliability despite grease contamination.

A control section switches between magnetic-pole position estimation and encoder detection to manage elevator car running states.

An optical derailment detection device replaces conductive wires with a photoelectric sensor, eliminating electric shock risks and rust interference.

Elevator control uses maintenance mode and service tool inputs to position the car, preventing uncontrolled movements during repair.

A local area network system processes sensor data to optimize hoist operations and worker display information.

Helical thread engagement on a servo-driven rotor prevents rapid descent during power loss without separate emergency devices.

A brake release member selectively reduces friction between elevator brake components and guide rails to enable automatic disengagement.

Segmenting the elevator car into separate passenger and robot compartments resolves safety conflicts while maintaining structural simplicity.

Dynamic adhesion adjustment reduces twisting stresses and noise in deflection pulleys while maintaining high traction capacity during normal operation.

A method fixes an alignment element at two points to orient subsequent guide-rail segments relative to a stable reference.

A self-driven lift car moves along a closed track using a pinion system for guided transport.

Controller adjusts run profile based on electrical current limits to prevent faults and ensure safe stopping.

Automatic recognition of identification device signals eliminates manual programming errors and reduces time consumption in destination control systems.

Rollers biased against guiderails eliminate sliding friction to maintain consistent braking efficiency despite surface contaminants.

Repositionable limit switches extend overtravel limits to resolve maintenance accessibility constraints in elevator shafts.

Elevator controller adjusts car velocity via pressure sensor data to prevent ear discomfort during descent, reducing flight times.

An elevator safety brake defaults to a spring-engaged state, using periodic electromagnet pulses to release the wedge and eliminating continuous holding energy.

An electronic control module monitors passenger position and speed to automatically override elevator operations when unauthorized or emergency events occur.

Controller reduces elevator car speed when battery voltage exceeds safe charging thresholds, preventing overcharge damage during regenerative operation.

A monitoring system detects inductive brake operating conditions using speed and voltage analysis to enable smaller electromechanical brakes.

Dynamic elevator sectoring assigns cars to specific floor groups based on real-time traffic density, reducing travel time during peak hours.