Elevators TRIZ Cases

U-shaped sheet metal profile rails guide elevator cabins and counterweights while integrating safety device mounting to reduce structural complexity.

A foldable maintenance beam rotates between elevator guide rails to provide a stable platform.

A mechanical actuator moves the safety actuation mechanism to engage the counterweight brake.

Dynamic positioning of a virtual control panel on elevator touchscreens adapts to passenger height and orientation, ensuring ADA compliance in crowded cabins.

A galvanically separated sensor arrangement measures elevator safety circuit current without interrupting wiring.

An RFID vertical position sensor detects alignment while the bi-stable solenoid lock prevents accidental unlocking during power outages.

A contact element with a cutting side penetrates the casing to electrically connect tensile carriers.

A method monitors elevator car acceleration to determine braking system reaction time during a stopping sequence.

An elevator control system moves the car away from landings to prevent unauthorized access while automatically restoring service if no entry occurs.

An elevator positioning system calculates adjusted car positions using transceiver distance measurements and calibration data.

A controller adjusts elevator door opening times using real-time traffic statistics and light barrier data.

A control device manages an operating portion that releases stored kinetic energy to engage a safety clamp with the guide rail.

Continuous position monitoring eliminates stationary magnets, reducing assembly costs while ensuring reliable cabin door locking activation.

A destination call controller allocates elevator cabin journeys with zero floor difference between input and departure floors.

Active control system counters low-frequency vibrations from synthetic rope elasticity, eliminating re-leveling operations.

Elevator control device delays car name announcements until after door opening to prevent overlap and ensure visually impaired users hear assigned car details.

Separating supply and measurement lines minimizes impedance interference, enabling accurate voltage analysis for elevator safety.

A wheel decompression system lifts elevator drive wheels away from guide beams using separating cams and actuators.

Scanning visual codes containing fixed hardware addresses resolves dynamic internet addresses, eliminating dedicated application requirements.

A stair lift control unit monitors battery voltage characteristics to generate early warning signals for users.

Shared hoistways consolidate vertical transport infrastructure, reducing building footprint while maintaining safe simultaneous operations.

Merging machine and safety brakes into one unit cuts installation time while maintaining reliable control.

Lockdown mode controller manages elevator car movement and door access during emergency situations.

A composite resin covering layer stabilizes the friction coefficient of elevator ropes across varying sliding velocities.

A wear detector senses electrical resistance changes between a conductive gib and guide member to monitor component degradation.

A sensor and controller adjust elevator machine rotation to maintain baseline angular position.

LIDAR sensors measure horizontal roping positions while processors calculate building drift characteristics using tension and density data.

Notched brake components engage rail protrusions to distribute pressure and prevent thin web buckling during emergency stops.

A fluid viscous damper dissipates kinetic energy from overspeed governor rope inertia, preventing unwanted safety gear tripping during quick stops.

Varying thimble rod lengths prevent socket interference in large-stroke elevators, reducing apparatus weight while maintaining load strength.

An evaluation unit extracts the envelope of acoustic response signals to identify physical changes in monitored areas.

A dual elevator control system manages passenger and goods transport via automatic movement signals.

A group control device calculates in-car stay time to select alternative past hall destination calls for new requests.

Direct mechanical coupling between the drive shaft and pivot axes eliminates complex linkages to reduce system construction complexity.

Independent friction wheel speed control maintains elevator car centering during high-speed travel.

A pit inspection control station connects to an elevator controller via a dedicated safety communication link for car movement.

A rolling ceiling mechanism moves on guides and rotates around an axis to open the cabin false ceiling.

Housing the deflection pulley inside the cross beam eliminates protruding parts, simplifying assembly and reducing material costs.

Series resistors and a comparator detect short circuits or open connections in elevator safety chains, enabling reliable motor braking.

A lift rail anchors to walls using devices spaced at varying heights that bridge interspaces based on local load conditions.

A vibration sensor detects knocking gestures on an elevator door to generate control signals.

Segmenting a single integrated circuit into independent processing cores resolves the contradiction between high safety integrity and implementation cost.

An elevator passenger interface integrates a braille display and auditory feedback system to enable tactile interaction for visually impaired users.

Integrated angled surfaces and shaped end walls align connector contacts with tension members, resolving misalignment issues during coated rope inspection.

A terminal device displays maximum door closure time to passengers for arrival planning.

Door sensors detect building entry to automatically initiate elevator trips, eliminating manual call actuation and reducing passenger wait times.

Sensors at the main switch input measure electrical parameters, enabling remote operational state detection without physical access.