Elevators TRIZ Cases

Controller isolates brake circuit from main drive to eliminate manual intervention, reducing rescue time and preventing motor interference.

A controller drives ultraviolet LEDs to disinfect elevator buttons upon detection by infrared sensors.

Projection systems display real-time weather conditions on interior surfaces to reduce claustrophobia and boredom in confined elevator spaces.

Dual sensors on the traction sheave compute force differences and sums, resolving measurement precision issues during brake engagement.

Wireless channel state information imaging identifies unsafe maintenance operations in obstructed elevator hoistways.

A non-conductive wire and dual sensors detect counterweight derailment without electrical current flow.

Split elevator guide rail brackets with threaded adjustment surfaces reduce manual alignment effort for heavy rails.

A portable device establishes a connection with a communication gateway to transmit configuration data for automated software deployment.

Secondary strands positioned in entry and exit zones resolve the contradiction between tensile strength and bending stiffness.

A flapper mechanism attached to an elevator car extends an arm outside the car periphery to engage a hoistway prop device.

Automated controller deployment retrieves operational parameters from existing elevator systems, eliminating manual configuration delays during maintenance.

Electromagnetic actuator replaces mechanical force resistors, preventing inadvertent safety activation during normal operation.

Dynamic resistance adjustment reduces buffering stroke without complicating speed governor construction during main rope breakage.

A receiving member below the window glass catches melted intermediate film to prevent fire spread through the hoistway.

A folded sheet fishplate joins elevator guide rails using parallel layers connected at a fold line.

A hoisting machine brake renews its friction surface by moving the braking surface against the pad to restore force.

Interior service access assembly eliminates shaft hazards by allowing personnel to maintain elevator components from the car.

Opposing guide shoes center a false car platform on elevator guide rails, resolving complex installation alignment issues within the hoistway.

Replacing analog processing with digital binary comparison reduces false readings in elevator tension members while maintaining manageable system complexity.

Removable plugs block elevator lock keyways, preventing unauthorized plunger access while enabling safe maintenance operations.

Distributed elevator controllers assign calls to any capable car, eliminating group dispatcher complexity and reducing system costs.

An intermediate transfer station with a service lift allows elevator cars to enter the hoistway at intermediate floors, bypassing terminal end requirements.

Cambered diverting wheels guide belt-shaped hoisting ropes along predefined axial zones within elevator drive systems.

Profiled pins with radial ribs absorb rail joint vibrations to improve elevator travel comfort.

A controller corrects elevator car absolute position using code tape data and reference detection.

Autonomous car movers execute health monitor protocols to track power levels, preventing operational delays by proactively directing units to charging stations.

A hybrid elevator belt combines steel cords with carbon fiber elements to reduce suspension weight.

A drive control device positions its operator module on the elevator car roof to enable direct access from the shaft.

A Layer 3 networking system uses DHCP and DNS servers to facilitate service discovery for transportation infrastructure peripheral devices.

Dynamic elements adapt to building settlement and thermal expansion, resolving friction trade-offs while maintaining play-free rail stability.

A catching device uses linear bearings to guide braking elements, enabling smooth movement with minimal force.

Elevator control reduces car capacity and distributes passengers across multiple units to maintain social distance during health crises.

Existing sensors detect key signal patterns to activate configuration mode, reducing incorrect parameter entry risks in passenger transport installations.

Mechanically convertible elevator car operation panel switches between normal and maintenance modes.

Fixed floor allocation reduces intermediate stops and travel time by grouping passengers with common destinations.

A car speed monitoring arrangement uses tensioned flexible members and rollers to detect rotation speeds for elevator control.

A flexible elevator machine frame uses an adapter assembly to accommodate varying traction sheave configurations between the motor and brake.

A hoisting machine drive adjusts cable carrier rotation to compensate for rope length changes during loading.

A multi-hoist system adjusts individual line speeds using inclinometer data to maintain load orientation.

An elevator control system selects motion profiles based on occupancy status to optimize travel speed.

A grounded conductive housing detects sheath damage by monitoring ground faults from exposed wires, resolving difficult wire integrity measurement.

Transfer learning calibrates elevator sensor models against known excitations, resolving manufacturing variations that degrade fault detection accuracy.

A control unit aligns measurement waveforms by extracting inspection operation start points from magnetic field data.

A collapsible elevator car apron assembly extends to block landing doors and compresses into the sill upon contact with the pit floor.

A tethered protective sleeve shields elevator load-bearing members from weld slag and concrete debris during hoistway maintenance operations.

Stationary tensioning means and an electromagnet trigger a counterweight safety gear to prevent upward movement of the lower car in dual-car elevator systems.

Segmented fastening holes lock projecting portions into elevator bases, eliminating complex alignment in restricted hoistway spaces.

Segmented stationary stators enable a single mover to propel the elevator car across hoistway portions, reducing weight and footprint.

Composite wedge housings reduce weight and complexity while maintaining mechanical strength through segmented modular design.