Elevators TRIZ Cases

A bobbin-to-magnet or bobbin-to-yoke contact structure protects the coil under excess force while preserving Lorenz-force vibration suppression.

When robot traffic exceeds a threshold, the elevator switches to dedicated mode to cut delays while still allowing human-priority use.

Piercing screws and bridge contacts keep electrical contact with shifting elevator cords, enabling accurate detection of belt deterioration.

Decoupling hand-pump pressurization from brake release control enables slow, precise load lowering with less operator strain and safer operation.

Electromagnetic induction between two solenoids detects actuator and magnet condition without impact testing, reducing wear and stress.

An electrical ground path through the sheave detects exposed suspension conductors early, helping prevent wear damage and missed maintenance.

By reusing linear motor stator coils as power-transfer primaries, this case cuts separate hardware, cost, and failure points in rope-less elevators.

Bridge contacts and belt-piercing pins maintain stable electrical contact with elevator cords for earlier detection of belt deterioration.

Electrical signal detection between two solenoids verifies magnet position without rail impact, reducing actuator wear in elevator safety brakes.

Bi-directional wireless power transfer replaces elevator traveling cables and keeps critical car functions running during power outages.

Releasable panel-to-wall connectors replace manual COP wiring, speeding elevator panel installation, maintenance, and updates.

Push-fit electrical connectors let elevator car operating panels be installed or replaced quickly without manual wiring or top-of-car access.

Dynamic transfer floor selection helps mobile robots avoid crowded elevator handoff floors, reducing delays and smoothing inter-elevator travel.

Off-limits shaft segment data lets an inspection drone avoid elevator cars and counterweights with simpler onboard sensing.

Monitors service-level and traffic-pattern changes in building passenger systems, then runs simulations to trigger proactive configuration updates.

Coordinates robot and human elevator calls by adapting dispatch and waiting behavior to improve traffic flow and task priority.

Autonomous UAV tracking inside an elevator shaft synchronizes with moving parts to capture images during operation and reduce manual inspection downtime.

Pre-movement sound, light, or motion cues let nearby people anticipate a mobile robot's next move and reduce fear in shared spaces.

Monitors building passenger traffic and service shifts, runs simulations, and triggers control changes before complaints degrade elevator service.

A mobile robot approaches users and sends elevator control signals, reducing wait time without apps or distant call panels.

Real-time and predicted passenger flow steer robot elevator requests to balance car assignment, traffic coordination, and human service quality.

A one-way bearing and friction-driven spool keep belt payout tensioned, preventing slack during winding and unwinding.

Dual friction members on both sides of the brake disc raise elevator braking torque without the cost and complexity of caliper disc brakes.

Friction damping between an oscillating rod and guide pin cuts elevator car vibration from uneven guide rails with less complexity than hydraulics.

An oscillating rod, guide pin, and friction members damp elevator car vibration from uneven rails while avoiding hydraulic complexity.

Credential-based elevator dispatch lets one security robot move between floors without button actuators, cutting robot count and system complexity.

Guide rails stand upright on the elevator car with lateral support, enabling faster hoistway installation with less scaffolding and auxiliary lifting.

A predictive system analyzes elevator fault descriptions and current settings to recommend proven parameter updates with less analysis and fewer site visits.

A predictive system recommends proven elevator configuration updates from problem data, cutting analysis time, site visits, and downtime.

Call codes and robot ride-share preferences let elevators route robots to suitable cars or banks while limiting delays for human passengers.

Bent sheet rail sections fixed together adapt elevator guide rails to reduced hoistway space while preserving strength and smooth guidance.

Two smaller elevator machines are flexibly coupled and electronically synchronized to deliver high hoist capacity with lower cost and less sheave deflection.

API-linked elevator coordination lets a serving robot move across floors autonomously, reducing delivery delays and order errors.

Rearranging robots inside the elevator car by destination floor prevents boarding conflicts and speeds alighting across multiple stops.

A confined magnetic circuit moves the brake linkage without rail-drag friction, cutting wear, debris, and power demand in elevator safety braking.

A confined magnetic circuit replaces friction-based actuation to cut guide rail wear, debris, and electromagnet power in elevator safety brakes.

Inclined dual static plates create more coil space in elevator brakes, boosting electromagnetic braking reliability without major system changes.

Sequential brake segments and a snubber network soften elevator emergency deceleration to reduce passenger discomfort and belt slippage.

By tracking coil resistance and current, this case detects transient overload energy and triggers brake coil cooling without extra sensors.

A mechanical collar and lever interrupt emergency lift descent on obstruction contact, enabling safe stopping during power outages.

Integrated load cells and proximity sensors measure friction lining normal force directly, improving brake monitoring and spring failure detection.

Magnetic attraction and repulsion replace mechanical linkages to trigger elevator safety braking with lower noise, cost, and reliable deceleration.

Magnetic attraction and repulsion move an elevator safety brake without mechanical linkages, cutting noise and system cost while preserving braking reliability.

Magnetic actuation replaces mechanical linkages to trigger elevator safety brakes simultaneously during overspeed, free fall, and overacceleration.

Predictive dispatching uses elevator usage, user behavior, and feedback data to anticipate demand, cut wait times, and improve allocation.

A screw-driven lever brake clamps the guide rail to hold elevator cars level during loading and tracks pad wear for timely maintenance.

A spring-closed, spindle-released elevator caliper brake uses floating linkage and small pad clearance to cut closing time without dragging.

Pulley encoder data calibrated by hoistway markers gives accurate elevator car position with less installation and maintenance work.

Gradually reducing park brake compression lets the elevator car slide into force balance, preventing drops or jumps during departure.

Dynamic robot priority control cuts elevator standby time, reduces congestion, and improves transport of critical freight between floors.

Reduced coil current tests whether the brake moving member retracts, enabling automatic friction plate wear checks and timely elevator maintenance.

A torsion spring pre-load lets an elevator overspeed governor trigger the safety device promptly, improving safety and operational reliability.

Equal strand and cord lay directions keep filaments in contact, reducing migration, bending damage, and belt reinforcement cost.

Brake-release test periods are used to learn a rescue time that keeps elevator car speed acceptable while reducing brake wear.

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

Actuated stoppers rise near elevator doors to restrain trolleys during entry and exit, helping prevent glass door collisions and damage.

Stored origin-to-destination access rules let elevators authorize floor travel in advance, improving building security without slowing service.

Pinpointing which elevator landing has a door locking fault enables faster maintenance using segmented fault collection and sending circuits.

Direct elevator sensors combined with Set Function and Fourier models classify door installation errors with higher accuracy and fewer callbacks.

A support-frame blocking member stops an elevator working platform from being stowed too early, protecting components when overhead clearance is limited.

Movable blocking devices lock the elevator car against guide-rail stops, creating a safe maintenance volume without extra hoistway space.

Customizable elevator and walkway assistance modes let passengers trigger only needed audio, timing, or chime features without inconveniencing others.

A hinged multi-link counterweight brake reduces overspeed loads on elevator safety components while enabling automatic reset after tension loss.

Autonomous trigger signals simulate passenger inputs and sensor feedback to detect elevator hard shutdowns without controller communication.

Wireless modules report each escalator safety switch state to the controller, cutting cable clutter while preserving fault location visibility.

Test runs with and without load use motor current and car height data to calibrate elevator pre-torque and improve equilibrium accuracy.

Fastening rods through stacked weight components simplify elevator counterweight assembly while improving stiffness, robustness, and manufacturing ease.

Color-based elevator commands avoid QR reading errors on cracked phone screens while enabling accurate, hygienic hands-free control.

Fire intensity, weather, and passenger counts are used to shift elevator discharge landings and improve evacuation routing during fires.

Differing brake angles and elastic properties balance roller forces on changing guide rail surfaces to keep elevator braking uniform.

A four-link vane drive lets one elevator car door lock work with clamping and expanding vanes, cutting system variety and maintenance cost.

Staged elevator code deployment uses gateway-led preliminary and secondary installation to limit service disruption and improve cybersecurity.

Gravity-driven counterweight operation moves a Sabbath elevator with minimal motor power while limiting car load to avoid electrical activation.

Motor speed and slip data let third-party elevator monitoring estimate car load without access to the control system.

A friction-limited liner angle creates self-locking contact in the sheave groove to prevent slip, loosening, and liner drop-off.

Multiple beam-based indicators use user location and changing lobby conditions to avoid blocked guidance paths in crowded elevator areas.

Factory-built hoistway modules align vertically and integrate guide rails, enabling faster elevator assembly with less space and material.

During manual elevator inspection, a control unit checks shaft-door status and switch sequences, then alarms or blocks motor movement when conditions deviate.

Elastic reset movement drives a bracket coupling past a threshold to detect elevator rope elongation without false triggers.

Cabin and waiting-zone radars distinguish passenger movement from inanimate objects to improve automatic-door safety and elevator efficiency.

UAV sensor surveys build elevator digital twins without permanent retrofits, enabling threshold-based maintenance requests for aging equipment.

A magnetometer compares magnetic signatures with a lookup table to locate conveyance apparatuses accurately along the conveyance path.

Resistive heating in elevator tension members prevents jacket cracking from cold temperatures, extending component lifespan.

Backup circuit disconnects energy storage from elevator overspeed governor during power outages to preserve charge.