Elevators TRIZ Cases

Segmenting the call allocation control isolates special-purpose cars from continuous circulation loops, reducing energy consumption and computing effort.

Segmented load-bearing elements on a detensioning winch overcome radial crushing forces and heat build-up in deep water deployment.

Movable support pillar adapts to shaft space constraints while integrated controller reduces wiring complexity through data bus communication.

A passenger lift safety device monitors car presence, stop state, and door closure to trigger supervisory signals.

MEMS accelerometer detects building sway frequencies to adjust elevator car position, preventing component damage from lateral movement.

Remote signaling elements activate automatically when sensors detect exceptional situations, enabling timely maintenance intervention and reducing downtime.

Curved bumpers replace linear designs to eliminate rough transitions and noise during vacuum elevator operation.

Passengers use an in-car display to report faults, triggering immediate notifications that reduce response time and prevent operational delays.

Clustering trip-dependent drive current values determines elevator position without shaft infrastructure, enabling retrofit monitoring.

Hybrid power supply unit manages grid-dependent and independent voltages to eliminate manual configuration during long-term storage.

Detect machinery brake failure by oscillating the traction sheave and measuring elevator machine movement, replacing complex mechanical switches.

Automated sensors detect elevator malfunctions to notify non-Jewish technicians, restoring service without violating Sabbath restrictions.

A hoistway access system positions the elevator car to create a defined safety volume for maintenance.

An access control system holds elevator doors open during security alerts to restrict unauthorized movement.

Guide devices align pre-assembled elevator units with car guide rails, reducing manual fitting risks and installation time.

Control device automatically releases elevator evacuation modes after a set time to serve other floors.

Interlocking pivotable blocking members prevent elevator operation when the car is absent, resolving safety risks from manual switch reliance.

A linear synchronous reluctance motor powers elevator deceleration during faults.

A learning-function check section validates running control parameters against predetermined ranges to ensure reliable elevator operation.

A control unit verifies safety-state detection means via a bus system to transition from an unsecured state into a secured operational mode.

Screw-driven mobile platforms enable automated guide rail installation, reducing manual work intensity in deep elevator wells.

Dual governor tripping mechanisms on separate sheaves enable independent speed threshold detection for precise elevator control.

A compact elevator safety gear wedging block uses a rolling element in constant contact with a guide to convert relative movement into braking force.

Magnetic engagement and low friction coatings reduce wear on elevator safety gear actuation devices, extending component lifetime.

A secondary car operating panel display system projects a virtual interface near tracked passengers.

A double-deck elevator group controller assigns cars using flexible operation modes to optimize traffic flow.

Translatory pivot lever movement ensures synchronous triggering of elevator safety gears, eliminating angular offset and sag during overspeed events.

Integrating motion sensors into roller guides measures vertical oscillations caused by load bearing member elasticity, enabling active compensation.

Variable threshold triggering adapts activation speeds to elevator position, resolving limited braking distance near hoistway ends.

Movable surface elements block the speed limiter cable to immobilize the elevator car and prevent dangerous shaft positioning.

Differential suspension properties prevent simultaneous failure risks while enabling targeted maintenance planning for elevator safety.

A mobile device prompts technicians with safety checks and sends permission messages to elevator controllers upon user confirmation.

Dynamic display apparatus segments elevator assignment data to prevent security breaches while clarifying destination floors.

Dynamic elevator assignment maintains passenger separation without reducing traffic handling capacity by allowing simultaneous service to different groups.

A serial communication network merges elevator control signals onto a single bus to reduce physical wire counts between controllers.

Electromagnetic induction transfers power to a magnetic brake, eliminating travelling cables that increase system complexity.

Portable devices read location tags to receive personalized movement directions, resolving navigation gaps where satellite signals are weak.

A bulk lifting conveyor system uses a continuous belt to transport goods across multiple building floors simultaneously.

Multi-sensor signals transform to a common vision direction for precise hoistway detection.

Clamping components grip a flexible guide rope to restrict elevator speed, reducing installation complexity of rigid rails.

Replacing mechanical cams with dual sensor consistency checks eliminates complex installation and reduces material costs for elevator terminal deceleration.

A microcontroller-based serial bus transmits safety data using redundant cross-checking modules to validate inputs and outputs.

Electronic universal interface device connects diverse lift types to remote terminals via standardized protocols.

A conveyance system updates software using sensors to detect individuals inside the car.

A unitary guide rail support assembly merges junction and mounting functions into a single structure for elevator shafts.

An automated vertical conveyor delivers parcels to specific floors via secure interior rooms, eliminating delivery time loss and theft risks.

A controller varies elevator car acceleration to detect main rope feed differences using a single hoisting machine encoder.

An elevator control apparatus uses a mobile terminal acceleration sensor to detect wheeled user movement, eliminating complex manual operation requirements.