Controlling Members TRIZ Cases

See how multiple receiving sections and a resilient U-shaped fastening device enable one actuat

See how a bayonet-style coupling with rotatable cover ring eliminates tools for control unit as

See how a backer apparatus with chamfers, flanges, and spring-loaded retainers enables tool-fre

See how dual-controller safety switch logic prevents unintended heater activation in cooking ap

See how a rotary push button switch combines arc ignition and application control in one mechan

See how a three-part control knob with perpendicular sliding couplings compensates for shaft mi

See how a stopper and locking pin mechanism prevents accidental knob rotation on cooking applia

See how a resiliently biased locking arm automatically engages when the knob is off, preventing

See how a key-driven sectorial tooth and elastic member convert manual pressing into rotation,

See how a rotary knob assigns multiple operating functions to single positions, reducing wiring

See how a stopper and locking pin mechanism prevents accidental knob rotation on cooking applia

See how a unifying bracket with protrusions through alignment slots prevents knob and bezel mis

See how a button-actuated locker restricts knob movement before operation, preventing unintende

See how a movable magnet in the knob mechanism automatically activates the ignitor when gas flo

See how a segmented rotor with collar, ring body, and axial arms accommodates a return spring w

See how a pedal-driven rotating head uses centrifugal spray to clean mops with minimal water wa

See how pin-shaped threaded elements and a multi-thread nut simplify cooktop control installati

See how pin-shaped threaded elements with magnetic alignment simplify hob control installation

See how positioning the power generation device on the occupant-side of the pad body improves v

See how a spring-biased locking arm automatically secures stove knobs in the off position and r

See how a backer apparatus with chamfers, flanges, and channels enables tool-free knob replacem

See how a safety controller and switch prevent unintended heater activation in cooking applianc

See how a three-step knob locking mechanism with separate button and stem prevents unintended g

See how a flexible pre-tensioned sealing lip in a gas stove gasket prevents liquid ingress arou

See how a dual-ring control element combines independent rotation and axial movement to enhance

See how a knob assembly uses an operating button with independent movement direction to prevent

See how a locking button with directional safety pin prevents accidental knob pressing in cooki

See how a cooking knob assembly uses a separate button press in a non-axial direction to enable

See how a single knob with push-in pop-out adjustment members controls multiple compartment tem

See how a cooking knob assembly uses a separate operating button with axial pressing before rot

See how a knob assembly uses a radial-press button and locking pin to prevent accidental rotati

See how a diametrically magnetized magnet and magnetic field sensor detect both axial and rotat

See how a universal knob timer device clamps over existing stove and oven knobs to automaticall

See how a separate adjusting ring engages around a cylindrical main part to enable axial adjust

See how an HVAC controller combines analog dial, stepper motor pointer, and LEDs to merge tacti

See how a stopper-groove mechanism prevents cooking apparatus malfunctions by blocking shaft ro

See how a knob locking device with button-activated shaft movement prevents unintentional heat-

See how a spring-biased knob mechanism prevents accidental gas release by requiring deliberate

See how a gas water heater temperature knob uses thermocouple power and periodic LED activation

See how a magnetic coupling element with nested base section covers the control shaft opening t

See how perpendicular rocking members with an inclined coupling shaft convert loader lever moti

See how a wireless actuator unit with movable stand separates wiring from sensing, enabling acc

See how a removable hob control knob uses optical, acoustic, and wireless signaling to solve th

See how a modular turning unit with touch elements bridges tactile knob rotation and touch disp

See how a magneto-rheological fluid replaces gear-based jog dials to enable adjustable rotation

See how an annular light guide device in the panel opening guides LED light to the control knob

See how a solid light guiding device surrounds the rotary shaft to illuminate the control knob

See how an elastic guiding portion with protrusion-recess engagement prevents accidental knob d

An integrated lockable pushbutton blocks dispenser actuation and refill access to reduce soap theft, tampering, and contamination.

A flexing socket wall and tab-recess lock simplify plastic frame assembly while keeping snap-fit joints strong and cost-effective.

A magnetically positioned hob knob uses tilt operation and a convex support surface to avoid scraping marks and reduce wear on glass ceramic.

A virtual-pivot armrest with lockable positions improves operator comfort across different heights while keeping the wrist in a neutral position.

A flexible torsionally rigid shaft lets the knob stay centered while the potentiometer is offset, preserving exhaust filter space.

Hand detection activates motor torque only during knob adjustment, cutting HVAC control power loss while preserving haptic resistance.

Curved support brackets let a U-shaped seat slide unlocking lever rotate and shift to absorb dimensional errors while keeping both locks synchronized.

A symmetric dual key hole housing lets lumbar support actuators install in either seat orientation, cutting assembly time and alignment errors.

An integrated handle aligns the throttle, stop switch, and spray valve to enable one-handed control with precise spray metering and less fatigue.

A lead screw and link coordinate leg rest elevation with telescopic extension to reduce leg compression and simplify powered adjustment.

Thin CVD coatings on appliance contact surfaces cut friction and wear, improving operating quality, service life, and material flexibility.

A snap-fit interconnecting element and rear-set claw structure keeps appliance control knobs secure under impact and vibration.

A phased linear actuator and sequence plate let a zero-wall lifting recliner deliver full motion with one motor while avoiding interference.

A notched arm and pivoted slat frame give bed head-rest and back-support sections multiple manual elevation positions without bulky motors.

Axial and circumferential adhesive grooves let a threaded insert bond securely inside a brittle ceramic knob without forming threads in the ceramic.

A ramped bezel and integrated feedback arm give clear tactile response while actuating the seat latch for controlled headrest movement.

Irregularly shaped four-bar leg rest linkages maintain safe spacing to prevent finger pinching while removing separate guards and assembly steps.

Targeted illumination and a light transport unit make selected appliance functions easier to see without complicating the adjustable control mechanism.

Direction-switching rotary knob control lets users reverse parameter adjustment logic for faster, more reliable kitchen appliance input.

A co-rotating detection shaft and non-contact magnet sensor measure brake lever input while blocking water and debris entry.

A molded resin contact member keeps projections away from pedal contact zones to limit vibration transmission and improve pedal feel.

A differential lever separates stepping and collision load paths so the pedal step retracts forward on impact without limiting shaft and lever design.

A layered thermoplastic actuation part uses a softer thickened transition zone to seal against dust and fluids while preserving elastic haptic input.

A face cover encloses the trigger opening in a knob dimmer, improving safety while supporting modular knob assembly and secure mounting.

An elastic finger pad and linked tilting stems improve endoscope button responsiveness while reducing the force needed for switching.

Separate micro-joysticks and a hand rest enable stable one-hand track or wheel control while reducing accidental activation.

A spring-coupled pedal emulator creates a progressive nonlinear counterforce to reproduce conventional brake feel in brake-by-wire systems.

Electronic hysteresis modeling lets low-displacement vehicle pedals preserve traditional pedal feel while reducing latency and improving driver feedback.

Parallel positioning planes constrain pedal-arm misalignment during assembly, reducing reaction force variation in accelerator operation.

A multi-direction roof switch arranges glass opening and light-transmission controls to save space and reduce operation confusion in vehicles.

Aligning reaction force with the pedal contact plane cuts force-position divergence, reducing brake pedal pad bending stress.

Closed-loop motor torque and position sensing create virtual stops, elastic loading, and tactile feedback without bulky mechanical encoder parts.

A plastic brake pedal push rod clip uses a metal pivot insert to keep strength while cutting weight and eliminating lubrication.

Elastic pedal pad deformation absorbs part variation to keep the pressing portion in contact with the load sensor without manual clearance adjustment.

An overlaid accelerator and brake pedal lets drivers switch with one foot, cutting reaction distance and braking distance in emergencies.

Dual inductance and Hall sensors on a brake pedal emulator keep a stable air gap, improving position accuracy and redundancy under tolerance variation.

A second button with an extended overlapping surface improves hand comfort while avoiding a large increase in input button complexity.

Magnetic pole alignment and an engaging portion simplify detachable button mounting while keeping the input button securely attached.

A load-triggered shear link keeps pedal actuation stable in normal use, then breaks on impact to limit rearward pedal movement.

A cylindrical magnetic circuit shields the angle sensor from disturbance fields while an inductive sensor adds redundant brake pedal position detection.

Armrest pressure sensing and feedback torque help filter unintended dual joystick inputs, improving steering stability and reducing driver fatigue.

Dual inductance and Hall sensors on both sides of the pedal arm keep a stable gap for accurate, fail-safe brake position sensing.

Direct shaft-angle sensing in an organ-type pedal avoids assembly variation errors and improves vehicle travel control accuracy.

Electronic force sensing replaces rigid pedal linkages, freeing cabin space and enabling position-adjustable braking and acceleration control.

Elastic torsion struts and a support element stabilize long vehicle control bars, simplifying assembly while keeping actuation detection consistent.

Parallel counterforce and damping units recreate brake-by-wire pedal feel in a shorter module that eases vehicle integration and assembly.

A 3D printed glass-filled nylon brake lever and triangular steering arm cut weight and drag while keeping braking reliable in racing wheelchairs.

A load-cell push arm and electric actuator create tunable pedal resistance while damping unwanted vibrations for more realistic haptics.

Progressive elastic resistance gives a small-stroke pedal clear tactile feedback, while dual pressure sensors improve operation safety.

Parallel spring compression recreates brake pedal feel in brake-by-wire systems while inductive and Hall sensors provide redundant sleeve position sensing.

An actuator retracts accelerator and brake pedals for autonomous mode, freeing foot space while restoring full operability for manual driving.

A speed-responsive rotary damper and pressing structure keeps knob rotation smooth by limiting load changes at low and high speeds.

Separate coils and staged brake gaps widen torque control range while keeping basic friction low for sensitive haptic feedback.

Magnetic sensing in a spherical shaft mechanism replaces sliding resistors, eliminating frictional wear for more reliable, durable operation.

A protruding pedal operation portion redirects reaction force through the stepped plane, reducing pedal pad bending stress and stabilizing brake input.

A keyed target lock keeps a vehicular pedal rotation sensor aligned through assembly and operation for accurate brake-by-wire position sensing.

A spring-biased shuttle lets the actuator handle lock in any orientation, improving security while allowing free rotation when locked.

A larger second hole and load-bearing contact surface ease pin insertion in a hollow vehicle pedal while keeping the first hole tight against loosening.

A movable housing and sensor layout enables small-stroke vehicle pedal control with minimal carpet cut-outs, better sealing, and reliable detection.

An elastic friction member creates non-linear pedal resistance during press and release, improving pedal feel while reducing driver fatigue.

A segmented pedal cover moves with the pedal to reduce wear and keep dust and moisture out of the housing and reaction force mechanism.

A deformation member replaces weak detection lever points to sense abnormal brake pedal stroke and trigger vehicle-stop control.

Proximity-triggered light feedback shows power level and load status only when needed, improving control awareness without draining battery life.

A stopper-fixed overlap structure holds the pedal arm end against the pad, resisting external forces and preventing disjoining.

Adjustable elastic preload and a rotation resistance mechanism tune pedal reaction curves for consistent brake feel under varying regenerative braking.

Linear springs, rotary damping, and position sensing help brake-by-wire pedals reproduce conventional brake feel without vacuum or hydraulic hardware.

A radially moving cam and grooved lever shrink selector knob depth while preserving tactile clicks, sound cues, and an unstable end position.

Drainage passages in a displaceable pedal holder let water and debris escape, preventing rust, freezing, and reaction-force malfunctions.

A segmented locking member secures a rotary knob to the rotary member while enabling easy removal without excessive force or component damage.

A swingable steering-wheel control combines accelerator and brake input in one operation portion to simplify driving and reduce errors.

Intermediate gear angle sensing helps a pedal reaction force actuator stabilize output load and reduce torque fluctuation and noise.

Rotating accelerator and brake pedals hide in autonomous mode and pop up for manual driving, improving comfort and preventing erroneous input.

A bush, driver element, and bearing collar enable smooth rotary and axial knob input with minimal play, high rigidity, and low-cost manufacture.

Sequential spring engagement and friction recreate conventional brake pedal feel in brake-by-wire systems while enabling precise pedal position tracking.

A movable two-part housing keeps the vehicle switch in a fluid-tight interior while enabling compact external actuation and automatic return.

A movable pressing rod assembly with a crushable rib absorbs groove tolerance to keep vehicle switch-to-trim gaps uniform and cleaner.

Repositioned levers and a jog dial beside the armrest cut arm movement while improving cabin assembly, sealing, and maintenance.

Proximity sensing activates illuminated load and battery feedback only when needed, improving control precision while conserving battery life.

A low-resistance section at the lever neutral contact point improves return-position voltage accuracy and reduces dead band without signal processing.

A movable sled and lever let drivers adjust brake pedal position while keeping the brake valve outside the cabin to avoid added noise and heat.

A rocker friction mechanism and second reset spring keep the pedal arm returning to rest even if the primary spring blocks or fails.

Pivotable pedal, seat, and steering adjustments expand fit across body types while preserving realistic vehicle-specific driving positions.

A preset foot switch sequence unlocks surgical instrument control while the pedal layout helps prevent unintended activation and foot sliding.

Springs and levers create nonlinear pedal counterforce without hydraulic or pneumatic systems, cutting complexity, cost, and fluid-handling issues.

Segmented dial engagement lets operators set wheel loader travel speed in fine steps while keeping simple control across varied ground conditions.

Mismatched magnetic pole pitches create dense passive haptic notches with fewer poles, enabling miniaturization and position sensing without power.

A cam-guided rotary link makes vehicle buttons appear when needed and hide when idle, improving visibility while reducing interior clutter.

A position-based pedal lock lets the accelerator act as a footrest in automatic driving while reducing frequent lock-unlock operations.

Controlled hysteresis and staged reaction force help drivers hold target pedal opening more smoothly, reducing fatigue in eco-driving.

Compressed air chambers and a progressive return spring recreate brake pedal feel in brake-by-wire systems without hydraulic sealing complexity.

A faceplate-mounted wireless control keeps existing switch actuators on, preserving power to smart lights without rewiring or switch replacement.

A three-post hand and arm support with a dorsum-actuated selector lets drivers keep steering while operating vehicle controls with limited hand function.

A motor, gear device, and spring retract the pedal pad in autonomous mode to prevent mis-operation and restore manual pedal use when needed.

Repeated solenoid strokes drive a pawl-and-ratchet lock shaft to achieve longer thrust reverser travel and higher load capacity without a larger solenoid.

Magnetic dial sensing through a sealed barrier enables rotary and push input while blocking water ingress in wet-environment controllers.

A handle-mounted LED light targets the coupling member and winch drum without weakening the arm or disturbing night vision.

A pivoting rear handle and adjustable grip assembly improve finger clearance, comfort, and control across changing tool orientations.

An actuator, load cell, and drag-adjustable force graph make gaming pedal counterforce and haptic tuning easier and more realistic.

An elastic shaft coupling and dual angle sensing enable steer-by-wire force and position feedback while reducing motor ripple and inertia.

A locking stop and limit switch shorten trigger travel for hair-trigger response while keeping sensing precise and easier to maintain.

An offset fingering marker compensates for a slightly inclined rotating shaft so the knob appears perpendicular and avoids visible warping.

A latch-and-track linkage connects both steering levers so a zero-turn mower can be driven in all directions with one hand.

A lever-and-leaf-spring clamp secures the broach while an adjustable depth stop improves femoral alignment in revision knee surgery.

A radially actuated brake shoe locks steerable medical device orientation with less hand force and fewer internal parts.

A pedal-driven lift and locking mechanism lets garden tool attachments switch quickly between transport and working positions with simple structure.