Elevators TRIZ Cases

Integrating weight monitoring with slack detection reduces device complexity while triggering emergency stops via mechanical biasing elements.

Reducing balance rope mass per meter lowers the static load range, extending head rope life beyond 1500 meters while maintaining slip safety margins.

Dynamic overspeed reference adjustment enables shorter buffer strokes without sacrificing operational efficiency.

A dynamic locking system manages elevator access to optimize transport capacity during peak hours.

Dynamic elevator doors use electrochromic switching to maintain privacy for residential users while guiding passengers through commercial areas.

In-situ heated roller contact restores elevator belt surface roughness, preventing traction loss and extending operational lifespan without unroping.

Auxiliary devices provide replacement functions for faulty elevator components to maintain system operation.

A cageway connecting device uses positioning cannulas to join upper and lower structural beams.

A control circuit modifies electromagnetic brake engagement rates using a switching mechanism to adjust deceleration profiles.

An elevator system merges separate fieldbuses into one Ethernet network to reduce cabling complexity while ensuring timely arrival of critical control signals.

Control elevator car motion profiles to counteract cable sway without external damping hardware.

Electromagnetic actuators drive magnetic brake pads through a mechanical linkage to synchronize engagement.

Replacing toggle levers with a rotary motor reduces actuator volume and deformation while maintaining required braking force.

A sandwich-structured composite panel serves as an elevator counterweight screen, combining face skins with a cellular core.

A friction brake with a bronze and steel alloy conical design reduces braking acceleration from 5 g to 2 g, lowering physical stress on wind turbine personnel.

A controller adjusts elevator door dwell time based on real-time load weight detection from a sensor.

Segmented posts dock into interlocking fingers on the elevator car roof, reducing installation complexity and weight while ensuring reliable fall protection.

End limit indicator detection triggers automatic brake actuation during manual rescue, preventing overspeed near shaft buffers.

A lift car restraining arrangement locks the vehicle to a stationary rack at any vertical level.

Series non-contact switches detect open hoistway doors via two electrical paths, replacing worn contacts to reduce maintenance frequency.

A controller releases door close disablement after a set time to allow elevator service.

A facility display system manages support status using color-coded icons on a terminal.

Car operating panel outputs audible destination floor feedback via speaker when elevator car occupation exceeds a predetermined limit.

Telescopic toe guard panels pivot and retract to minimize clearance beneath the elevator car, enabling operation in reduced-pit or pitless hoistway systems.

Segmenting the hoistway into operational zones allows multiple cabs to move independently, reducing wait times while managing coordination complexity.

A call panel enables floor cancellation by switching selected destinations from illuminated to flashing and then de-illuminating them upon re-selection.

RGB-D sensor fusion with an analytic processor detects unaccompanied children, preventing mistaken identification that disrupts normal elevator operation.

Elevator control system adjusts energy settings based on trip parameters to reduce consumption without increasing complexity.

Elevator control device transmits fault data via internet, reducing centralized monitoring complexity.

Analyzing current profile patterns determines elevator operating states via a single power line sensor.

Unified destination call allocates elevator cars across multiple groups, eliminating wait times during inter-group transfers.

A floor height mapping system analyzes elevator run group data to generate precise spatial coordinates for maintenance tasks.

Embedding the governor in a floor housing space relocates it below the machine room level to avoid equipment interference and ensure maintenance access.

Offset guide wheel engages track beam sidewall to prevent drive wheel deviation during autonomous elevator car movement.

Movable roof deck increases cargo volume while maintaining passenger safety.

Openable ceiling panel mounts imaging device to capture exit zone data for internal display.

Automated inspection assembly replaces manual access by using magnetic biasing and guide slides to align sensors against hoistway rails, reducing operator risk.

Electronic nose detectors identify smouldering odorants in elevator shafts to trigger immediate safety responses before visible smoke appears.

Segmented core and outer strands increase contact area, reducing sheave wear while maintaining strength.

Alternating support grips extend to move elevator platforms vertically, eliminating heavy traction ropes in high-rise buildings.

Automated elevator counterweight inspection system using a movable frame and camera to capture indicator element images for position verification.

An insertion portion fits into a groove on the forming rail, distributing load and preventing deformation.

An AI mediator predicts effects of elevator parameter adjustments, resolving complexity in understanding interdependencies while maintaining safety.

Longitudinal recesses and curved retaining elements prevent diagonal pull derailment in elevator belt systems.

Stabilizing members engage side wall handrails to prevent sway, resolving the trade-off between compact platform size and operational stability.

Auxiliary supports temporarily fix elongated guide rails above the lifting drive platform to resolve mounting conflicts with counterweight tracks.

An elevator guide rail alignment apparatus uses inductive sensors on a measuring frame to detect rail positions.

An elevator controller aligns the car top structure with a landing via a specific access command, eliminating manual emergency stop timing.

Multi-system door switches detect maintenance workers entering the hoistway, eliminating extra equipment costs while ensuring reliable safety.

A wedge rope clamp uses a deflection device to guide cables between angled clamping regions, enabling compact self-clamping.