Elevators TRIZ Cases

A ferrite ring measures stator phase wire energy to calculate elevator car position from rotor slip.

Bedplates raise elevator rails to new floors, maintaining construction efficiency during modular building expansion.

Removable elevator car side wall forms a parapet that maintains 10cm safety distance from moving parts while enabling full maintenance access.

A fastening arrangement for elevator guide rails uses a nest mechanism to enable vertical and horizontal adjustment of bracket parts.

Independent spring energy store ensures rapid emergency braking response while electromagnetic release maintains holding force without continuous power.

A unitary sheet metal combined guide rail integrates car and counterweight paths, reducing weight while maintaining torsional strength.

Municipal water drives hydraulic cylinders to move elevator platforms, ensuring Jewish Law compliance while reducing continuous energy consumption.

An interface device bridges destination entry systems and building security infrastructure to facilitate credential verification.

An independent tag and anchor network determines elevator car position via time of flight, bypassing proprietary controller access constraints.

Segmenting the drive means into flexible and tension parts reduces equipment volume while maintaining structural strength.

A helical thread rotor engages a toothed brake rail to prevent uncontrolled descent when the drive mechanism loses power.

A controller coordinates elevator handoffs between distinct groups to streamline passenger movement.

Virtual signal generation means simulate door-open states in elevator control circuits to verify safety functions without physical door movement.

A touch panel destination floor registration device detects user type via input locus to enable accurate floor selection for visually impaired individuals.

Optical tape clips bias sensors against a reference scale to detect car position interruptions for precise floor alignment.

Color-matched hoistway signage identifies assigned elevator cars, resolving passenger confusion in multi-car hoistways.

A rectangular cross-section speed limiter belt stabilizes elevator car braking through a switchable stopping device.

Eccentric cabin guide rails and drive units offset from the lift shaft centerline to balance force distribution.

A three-sided frame guiding device displays elevator operation states through lights.

Segmented elevator call registration uses a grace period to delete unverified lobby registrations, eliminating false detections without adding hardware.

A displaceable guide member shifts between contact and retracted positions to enable horizontal elevator car movement.

Optical sensors detect elevator speed and position via reflected signals, replacing costly mechanical switches to lower installation expenses.

Elevator system identifies passengers via database records to trigger personalized building actions.

Segmented electromagnetic actuators reduce brake volume and simplify maintenance while ensuring system redundancy through distributed force supply.

Segmented dividers on a guard and sheave contain ropes to prevent entanglement during high-rise sway conditions.

A unified safety device processes sensor signals to simultaneously control elevator brakes and door drives.

Purely mechanical safety brake applies controlled braking forces via dynamic paths to arrest free-falling conveyances without electronic controls.

An integrated sensor assembly monitors elevator car loading and door obstructions to enable sag compensation while reducing device complexity.

A spring actuation mechanism in an overload valve assembly detects cabin weight limits to disconnect power circuits.

A computer device determines elevator mass ratio by acquiring car acceleration during travel.

Direct communication buses link hoistway and car safety nodes to the controller, reducing wiring complexity and minimizing signal processing time.

A dispatch system assigns elevator calls based on available occupant capacity rather than travel time alone.

Segmenting the coupler body from the safety gear reduces electromechanical complexity while the curved surface amplifies press-on force for reliable braking.

A controller detects electrical operation amount to regulate elevator car speed during emergency rescue operations.

An elevator safety brake uses an articulated arm to hold the brake body in a rest position against activation force.

A user device interface enables remote elevator service requests through scrollable floor selection wheels and swipe inputs.

A moving guide element pushes the traveling cable into a stationary channel, preventing entanglement caused by building sway or seismic events.

Passenger sensors detect occupants to calculate car load data, eliminating complex cabling during elevator modernization.

A detection device senses mobile terminal radio waves to trigger automatic emergency reports from trapped elevator passengers.

A traction ratio detection method monitors suspension member tensions to identify stuck elevator car or counterweight conditions.

A composite elevator rope employs a resin-coated fiber core and twisted steel strands to lower moving mass while preventing structural gaps and abrasion.

Electronic detection replaces noisy mechanical governors, reducing component count and resetting time.

A magnetic indicator translates internal roller rotation into an external visual signal for remote monitoring.

Elastic urging mechanism positions detection unit near wire rope, eliminating complex motor control processing.

Landing device air pressure sensor detects local atmospheric pressure to automatically assign elevator landings, eliminating manual configuration errors.

A sensor and controller system detects sheave bearing impairments through vibration data analysis.