Controlling Members TRIZ Cases

A blind elongated hole with reinforcing ribs helps an operation lever resist circumferential twisting while preserving smooth installation and tilt motion.

A laser beam and VCSEL sensing scheme detects watch crown rotation from reflected frequency shifts, avoiding precision surface features.

A 3D log spiral applies alternating rotational force along a lever rod to boost torque, ease reset against gravity, and reduce fatigue.

Actuated grip members use shafts and rotary or linear transmissions to vary controller force, improving intuitive control of surgical instruments.

Pivoting spring guide elements reduce track wear and stabilize handle travel while providing positive locking for aircraft cowl and hatch actuation.

Spatially separated levers and recessed switches let industrial truck operators control more functions with one hand while avoiding glove-related misoperation.

A cam slot, spring bias, and finger trigger block unintended shift into reverse thrust while keeping the aircraft throttle lever compact.

A rolling element and ball joint let a vehicle armrest follow arm motion while locking position for comfort and precise control.

A rotary push control switches between parameter selection and editing, simplifying welding input while reducing panel size.

An axially moving interlocking shaft and nested return spring compactly restore a lever or pedal to neutral while managing spring load.

A removable treadle inlay and yaw lock let surgeons switch between single- and dual-axis foot control with clearer tactile feedback.

An auto-locking catch holds a scope adjustment knob at its home position, preventing inadvertent rotation while allowing easier fine unlocking.

A force-sensing link in an active aircraft throttle removes dynamic wires, improving haptic feedback reliability and simplifying assembly.

A freely rotating wing and fixed horizontal rotor let a multirotor climb and descend in forward flight without pitch changes or added stabilizers.

A contact-free cover and chicane seal blocks dirt at the lever aperture while avoiding friction and hysteresis in aircraft controls.

Throttle position monitoring detects a stuck intermediate setting and limits wheel drive speed to prevent uncontrolled patient transport movement.

A ship propulsion control lever holds securely at neutral, then releases by grip movement instead of a button, easing operation in awkward postures.

A spring-loaded roller and brake create a distinct force spike at actuation onset, helping users avoid inadvertent input while keeping return smooth.

Embedding the magnet in an injection-molded joystick lever improves angular sensing, haptic feedback, and durability while reducing vibration.

A single rotatable joystick combines boom inclination, rotation, and telescopic control to simplify aerial device operation and improve ergonomics.

A rearward up/down lever with a guide plate and biasing mechanism improves work vehicle operability while preventing unintended state changes.

Stepwise crane speed commands are filtered into smooth path-based motion to suppress load swing during automated transport.

Tapered throat plate geometry and an aft-biased neutral joystick improve forward control authority while limiting sharp turns at higher speeds.

Pivoting head handles and a stowable IV pole clear the recessed bed edge, reducing caregiver interference during transport and care.

A magnetically removable button lets dental and surgical micromotor controls be sterilized aggressively without damaging the console.

A torsion-bar steering input assembly cuts mechanical bulk while improving steer-by-wire assembly accuracy, packaging, and reaction force control.

A support pad, spring rebound, and non-slip surfaces keep the foot at a natural angle, reducing fatigue and pedal displacement.

A pedal-driven lifting and locking mechanism lets garden tool attachments shift between raised and working positions for multi-season use.

Motor-stabilized rotating footpads and motion sensors let VR users simulate walking and turning with less disorientation and no real-world travel.

A pawl-ratchet wheel and movable fixing rod lock or release HMD tightness adjustment without the bulk of complex gear assemblies.

Eccentric abutment surfaces and pretensioned bearing bodies keep the grinding gap stable under fluctuating mass flow and roll forces.

A universal mounting member lets one surgical adapter interchange navigation and robotic instruments while reducing tool count and cost.

A lever-based cockpit control coordinates ESS, generators, and regeneration modes to simplify hybrid propulsion power sharing.

A protrusion-driven brake shoe locks the control knob with less force, reducing user fatigue and simplifying steerable device braking.

A movable pedal arm rotation point shifts the neutral pedal position in a compact aircraft layout while keeping maintenance access practical.

Automatic ranking and ID-based selection lets one wireless foot controller reliably operate multiple medical or dental devices with fewer user errors.

A movable pedal-arm pivot follows a circular arc to fit pilots of different heights while keeping the aircraft pedal mechanism compact.

Injection-molded plastic and an overmolded magnet keep joystick sensing accurate under vibration while simplifying sealing and assembly.

A recessed, hydrophilic user interface lets a protected capacitance sensor detect rain accurately while simplifying robotic garden tool assembly.

Triple independent throttle sensors detect mismatches and let the engine controller select a valid position for accurate aircraft engine control.

A switchable D-pad assembly balances smooth, fast swivel input with precise discrete directional control in one handheld controller.

A rolling ball on an inclined surface raises spring tension to return a marine joystick accurately to neutral with compact, low-complexity mounting.

A displacement-generating pedal mechanism senses plate rotation and linear travel to measure rider effort accurately under varying loads.

A detachable brake pedal rotates and repositions during folding to cut stroller frame protrusion and improve packaging efficiency.

A spherical collective grip lets rotorcraft pilots reach thumb and finger controls without releasing the lever during simultaneous adjustments.

Variable lever resistance and detents give continuous tactile position feedback, helping marine operators avoid accidental extreme shifts.

Strain gauges on deflecting pedal members capture small travel and uneven foot pressure for accurate brake-by-wire load sensing.

A lockable pedal with locking-state sensing lets one foot control switch between single-axis and multi-axis operation without blocking required movement.

A spring-return sliding cover protects rail emergency call buttons from accidental use while staying operable by users with limited mobility.

Magnetorheological braking adds compact, high-force haptic feedback to a joystick while damping lever oscillation for more precise control.