Elevators TRIZ Cases

An eccentric roller contacts the guide rail before the clamping roller, cutting noise and contamination while keeping elevator brake activation reliable.

A single-sheet T-shaped rail guides the car and counterweight while integrating safety mounting, cutting space use and construction complexity.

Sensor-based door timing adapts to passenger count and mobility needs, keeping elevator doors open long enough without unnecessary delay.

Queue and boarding sensors estimate elevator waiting time during congestion without continuous person tracking or complex system setup.

Multiple electromagnetic switches detect elevator door opening width, improving trapped-passenger alarms during faults.

Voice input lets the elevator identify user traits and authorization to deliver tailored car assignments and secured feature access.

Three hoisters placed around the machine room unit center of gravity improve stability, avoid platform interference, and cut moving weight.

Guides disabled passengers to the right elevator using profiles, real-time cues, and automated navigation in complex buildings.

A suspended segmented wire and disconnection circuit detect elevator derailment or wire breakage without obstructing hoistway maintenance.

Fixed hoistway markers auto-calibrate encoder pulses to improve elevator car position accuracy and reduce wear-related maintenance.

Infer elevator call device faults from door, light curtain, load, and travel events, avoiding added sensors and controller access.

Magnetic signature matching with acceleration or pressure checks improves elevator car location tracking without complex position hardware.

When sliding paths are blocked, a dual sliding-rotating door leaf mount opens the elevator car for evacuation without destructive force.

A split floor display lets high-rise elevator terminals show selectable and indicator floors separately, cutting button count while keeping calls easy.

A layered elevator management server standardizes robot access across buildings while verifying authentication keys for secure control.

ML-based diagnostics analyze signals across passenger conveyor modules to detect malfunctions early and reduce technician site visits.

Cross-module signal analysis helps identify malfunctioning passenger conveyor modules early, improving remote diagnostics and maintenance planning.

A dual tension-member 1:1 roping layout replaces complex 2:1 MRL elevator mechanics, cutting manufacturing and installation cost.

Pressure sensing flags conveyance start and stop events, then buffered accelerometer data pinpoints timing with lower power use.

Stored power from reused vehicle motor, battery, and charger enables elevator retrofits in low-rise apartments without major grid upgrades.

Gradual coil voltage changes reveal brake switch drift from trigger timing and current fluctuation, enabling early elevator brake maintenance.

Calculated motor assist compensates elevator balance and friction to detect degraded hoist brakes with more precise test loading.

Protocol converters and updated network records unify multi-manufacturer elevator devices for remote monitoring, control, and faster maintenance.

Automated position and parameter capture builds a digital twin of elevator or escalator components to prevent assembly errors and cut downtime.

A securing device, sensor assembly, and movement interlock keep the elevator car coupled to the suspension means and avoid unsafe separation.

Sensors and lobby displays direct non-allocated passengers to available shuttle elevators, reducing crowding, wait time, and unnecessary stops.

A floor hatch creates a code-compliant safety volume for access below the elevator car while interlocks and locking features prevent crushing risk.

A hinged gate retains elevator cables, then opens and rotates aside on car contact to prevent damage and interference during building sway.

Stacked weight components joined by penetrating rods simplify elevator counterweight assembly while reducing parts, cost, and manufacturing effort.

A floor hatch coupled to a movable fixing element locks the elevator car in place, enabling safer access to the hoistway pit.

A maintenance token, load checks, and door control keep technicians safe in the shaft while preventing unauthorized elevator movement.

A floor hatch linked to movable fixing elements locks the elevator car in place, enabling safer access to the hoistway pit during service.

Occupancy feedback redirects elevator calls away from fuller cars to available cars, cutting wait times and improving traffic flow.

Measured door vibration during repeated opening and closing enables objective acceptance or rejection of elevator door installation or repair.

A drum-sheave cable release retracts locking pins so tall elevator car ceiling panels can be opened safely from inside without extra tools.

A 3D sensor tracks an elevator car via a shaft marker and triggers error mode on missed detection for reliable SIL 3 position sensing.

By locking the car or counterweight to the rail, this case measures diverted force to verify elevator balance without lead blocks.

Motor current is measured before or at startup to predict power demand and adjust speed, acceleration, and jerk to avoid elevator stops.

Proximity sensing and speaker guidance help visually impaired passengers find elevator call stations and board before doors close.

A movable floor hatch creates a code-compliant opening and safety volume for accessing the hoistway below an elevator car in low pits.

A bent plastic lever preloads elevator guide rollers without separate springs, cutting guide shoe complexity, cost, and maintenance.

Automated shaft door unlocking based on cabin position improves technician safety and enables secure elevator maintenance access.

Sequential power-up lets elevator call-out units self-report IDs, enabling automatic floor binding that cuts setup time and manual labor.

A foldable elevator car top extension adds space for long objects, then retracts flush to preserve maintenance access and hoistway limits.

Upward car movement aligns the electromagnet and magnetic actuator pad to reset an elevator safety actuator without repeated manual attempts.

A mobile rescue robot unlocks elevator landing doors, reassures trapped passengers, and speeds evacuation without waiting for on-site staff.

A signal converter lets existing drive sensors feed the safety controller, cutting sensor count while still detecting elevator emergencies.

Allocates elevator trips by requested time windows and available capacity to cut waiting times and sustain service during traffic surges.

Autonomous robots use sensors and controller-guided checks to inspect elevator shafts safely and reduce manual maintenance in hard-to-reach areas.