Escalators TRIZ Cases

A support structure section transitions its belt from an L-profile to a closed O-profile at connection points.

A capacitive sensor system detects missing conveyor steps by correlating drive speed signals with step presence data.

Spatial image comparison against virtual regions detects step displacement, reducing sensor count and cost while maintaining safety.

A people conveyor handrail system uses transverse force sensors to calculate real-time driving power for the moving belt.

Self-service cleaning apparatus removes particulate from step and riser portions while the escalator is in motion, reducing manual labor and injury risk.

Magneto-inductive sensors detect drive machine misalignment to prevent transmission wear and extend component lifetime.

Segmented escalator steps with plug-in joints reduce transport volume while maintaining structural integrity.

An electrical interlocking assembly coordinates startup and shutdown sequences across series-connected passenger transportation devices to ensure operational reliability.

Detachable modular devices assemble into a flexible loading area, resolving site adaptation challenges in passenger transport.

An intermediary support belt reduces chain wear and elongation in belt-driven escalators by distributing load evenly.

Sensors replace mechanical barriers by detecting persons in a defined zone, preventing handrail hanging injuries while avoiding false alarms.

Adaptive control evaluates sensor signal deviations from learned baselines to maintain operational safety without requiring absolute failure detection.

A passenger conveyor system monitors motor and drive shaft rotation speeds to detect deviations and activate a brake mechanism.

Segmented pallets connected by mechanical links maintain continuity during belt failure, reducing space needs and eliminating gap formation.

A slidable comb plate structure moves along guide rails to prevent foreign object entrapment.

Laser-cut connecting means align escalator cladding elements to support structures, eliminating manual positioning aids and reducing assembly tolerances.

Trigger device along escalator skirt boarding produces electrical short circuit upon deformation to halt movement.

A measuring system uses a unified reference structure to correlate component dimensions and relative positions across escalator step units.

A moving handrail connection die applies a longitudinal temperature gradient to the thermoplastic elastomer core during heating.

A segmented access module conducts heat into a dedicated cavity, preventing component overheating and noise buildup.

Upper and lower sensors detect step deviations to identify guide wear and chain extension, preventing skirt guard damage.

Rear shaft step chain linkage positions drive paths inside the step main body, eliminating external pathways and narrowing escalator width.

Doppler sensors detect approaching passengers outside camera views, preventing accidents from sudden escalator speed changes during remote inspections.

Sheet metal panels form the side surfaces of an escalator support frame, providing structural stability through attached diagonal and vertical elements.

A linear guide constrains the pivoting locking piece of an escalator safety brake to ensure precise engagement.

Segmented shaft design reduces maintenance downtime by allowing independent component removal while preserving structural strength.

Acceleration sensors on moveable components detect vibrations and misalignment, enabling precise fault location tracking within closed loop paths.

An integral safety hatch launches inward when sensors detect approaching objects, expanding the inlet area to prevent pinching while stopping the handrail.

A deep-drawn metal sheet forms a single-piece escalator step cheek with an integrated stepped eye for chain pin axles.

A positioning device ensures correct installation of escalator floor covering elements through a lever pawl mechanism that visibly indicates misalignment.

Transversely extending stopping members on pivoting treads prevent toe pinching by blocking foot overshoot at the riser pivot axis.

Segmenting the drive shaft into detachable portions allows quick endless tread replacement without full disassembly, reducing maintenance time and complexity.

An autonomous robot adjusts its movement speed to match conveyor belts during transit.

A conveyor warning device projects a light beam to alert passengers of potential hazards near the comb plate.

Prestressed soffit plates reduce operational noise and weight by applying tensile loads to the supporting structure.

A people mover control system detects passenger positions on an endless conveying band to manage spacing.

Composite escalator steps reduce moving mass to lower energy consumption while decreasing operating noise through lighter structural components.

An updated digital double dataset replicates passenger transport system components to enable remote state monitoring via load profile detection.

Segmented sensors monitor handrail pressure to stop the escalator when passengers lean, preventing injury.

Spring-mounted cladding panels prevent gap formation and unauthorized removal while maintaining a clean aesthetic appearance.

Replacing complex electronic sensors with a mechanical detector roller simplifies maintenance by directly localizing guide rail wear through audible emission.

Segmenting the support structure into independent carriers anchors the drive to dissipate high loading forces while maintaining a narrow profile.

Segmented comb geometry controls abrupt pallet overturning to reduce level differences, preventing wheelchair jamming while maintaining structural inertia.

Pivoting pallet segments follow smaller circular paths to minimize entry height while reducing polygon effect stress on mechanical components.

Sensor detects step deviation and actuates comb plate lift to avoid damage.

Capacitive touch sensors in the handrail exit assembly detect approaching fingers, triggering speed reduction or stoppage to prevent jamming injuries.

Embeds an RFID or NFC tag in the handrail to replace mechanical marks, solving identification wear and illegibility issues over time.

Non-contact optical sensors detect rotation angles on low-speed rotary parts, enabling rapid detection of overspeed or inversion when drive chains fail.