Gearing TRIZ Cases

See how a button-actuated locking gear and biasing spring control coil rotation to prevent mult

See how a rotatable actuator with timed locking gear prevents peg-hook theft while allowing cus

See how a coaxial column of rotary discs with varying diameters and a movable limit component e

See how a nested pressure-sensitive sensor with elastic amplification enables prompt obstacle d

See how a two-part connector assembly uses plug-and-rotate fixation to enable rapid assembly of

See how threaded rod and tube rotation enable mobile foundations to adjust height and compensat

See how an adjustable rod and locking system restore synchronous belt tension in dryers after s

See how an elastic member amplifies axial deformation to trigger a pressure-sensitive sensor, e

See how a one-way bearing and friction-based locking pieces prevent unexpected lift rod movemen

See how a variable spindle speed profile—slow at start, fast mid-roll, slow at end—reduces moto

See how a helical coil dispenser with time-delay actuator and automatic locking arm prevents sw

See how an optics lens reads capsule QR codes to automate gate operation, water injection, and

See how a planetary gear with toothed belt drive and adjustable mounting carriage reduces kitch

See how a mobile stabilizing device moves axially with telescopic tubes to maintain lateral sta

See how a rotatable lever with snap connection eliminates extra components for linear actuator

See how a unified foot unit integrates joining pins and levellers in a compact body to enable f

See how tensioning the ejection force storage during closing movement enables smooth, uniform f

See how a worm gear and interference plate provide precise height adjustment and physical feedb

See how switchable adjustment contours enable furniture drives to adapt torque dynamically, pre

See how a segmented synchronization rod with telescopic adjustment compensates for up to 30mm l

See how a cam mechanism with magnetic coupling and Hall-effect sensor replaces mechanical inter

See how longitudinal, lateral, and rotational adjustment mechanisms enable armrest pads to adap

See how a coaxial column with rotary discs of different diameters enables real-time transmissio

See how a furniture drive device tensions the ejection force accumulator during a short compres

See how a dome-shaped guide housing with lateral reinforcement beam and enclosed power transmis

See how eccentric tracks oriented in opposite directions enable stepless vertical and angular a

See how variable cross-section pulley arms increase axial rigidity and shift resonance frequenc

See how dual transmission wheels guide steel cables horizontally then vertically to connect at

See how a nested internal guide rail keeps steel cables enclosed during cabinet lifting, preven

See how a wrap spring on a coupling element generates braking torque in one direction, reducing

See how over-pressing movement tensions the ejection spring with 50% of release energy, achievi

See how relocating the drive assembly inside the plenum eliminates external components, simplif

See how a self-locking screw mechanism with friction-angle design maintains book-page pressure

See how a rotatable locking gear and time-delay actuator prevent shoplifters from sweeping mult

See how a rotatable lever with snap connection automatically secures the shaft during insertion

See how a side-plate trunking system with wire through-holes organizes electric-part connection

See how a looping wrap spring on a coupling element enables directional braking torque in furni

See how an adjustable idler pulley and mounting bracket maintain belt tension in HVAC blowers w

See how a rotator-connector linkage enables independent control panel movement and fixation in

See how a screw-shaft actuator converts lever rotation into linear shuttle motion, enabling com

See how axis-aligned motor positioning reduces actuator housing height, simplifies mold design,

See how a dual-arm lever arm merges seat displacement and footrest folding into one compact mec

See how lock plates engaging internal gear teeth prevent seat cushion displacement under vibrat

See how a lever device with counterweight mechanism enables controlled pivoting of heavy food p

See how a dual actuator uses accessible rotating elements and tool connections to enable manual

See how non-circular stage rods and transmission nuts eliminate radial extrusion forces in tele

See how a movable nozzle and needle system controls refrigerant passage dimensions to prevent e

See how a slider block supported on a screw nut disengages during retraction to prevent hand or

See how transformable pulley units mounted directly on motor shafts enable variable diameter ra

A detent-and-catch mechanism lifts and latches casters with one-direction actuation, then releases and lowers them in a coordinated cycle.

A rigid spindle-nut load path bypasses the guide to cut torque stress, noise, and drop risk in height-adjustable lifting columns.

Rubber support sleeves and a tail pad secure the motor while improving heat dissipation, lowering noise, and extending service life.

An adjustable lever with ratchet and spring fine-tunes pivot arm support to prevent uncontrolled movement and allow secure vertical storage.

A driving assembly orbits a central hub to rotate multiple parallel rotors together, cutting power loss, parts count, and maintenance.

A rack-and-pinion leg mechanism controls wall bed lowering forces while rotating the support leg 90° to hide inside the cabinet.

A built-in piezo squeeze sensor lets a linear actuator stop or reverse on trapping, cutting wiring, space, and assembly cost.

Aligned dual torsional springs balance the sliding cover, cut vibration and shear force, and enable smoother open-close motion.

A piezo module built into the motor fixture detects squeezing directly, simplifying actuator installation while stopping or reversing motion.

Force and motor current are compared to track actuator efficiency loss, enabling early replacement before wear causes failure.

Low-resolution strain gauges built into bed actuators detect patient load changes for affordable egress alarms and easy retrofit of care beds.

A nested link and sliding stay rod layout folds the headrest in less space while improving support, durability, and vibration control.

A foldable seat frame with a defecation hole and adjustable supports helps bedbound users use a bedpan without soiling sheets.

A cam-pawl and cable mechanism folds the headrest with the seat back, then automatically restores upright position for safer, easier use.

Selective cooling modules thermally couple to the actuator housing to dissipate motor heat in high-speed, high-repetition linear motion.

A flange-like bearing shield splits the oil sump into two depths to control oil flow, cut churning losses, and save drivetrain space.

A clutch drum with locking members interrupts worm-wheel drive so vehicle seat rails can stop quickly and support walk-in sliding.

A clutch drum with locking members interrupts worm-wheel drive to the lead nut, enabling quick seat movement and stopping without a separate control device.

Adjusting rack connection direction to match stator winding patterns helps steering assist systems limit vibration and noise after coil failure.

A resilient member engaging a rod groove blocks unpowered back-drive in linear actuators without the noise, loss, or complexity of brake systems.

A sealed spindle and planetary roller nut structure raises actuator load capacity while limiting dust ingress and bearing wear.

A plastic coating over most of the screw thread cuts friction noise while preserving crash resistance in compact motor-vehicle adjustment drives.

A carrier with a directly formed bearing raceway cuts ball screw part count and assembly steps while preserving compact coaxial drive.

A downstream clutch layout cuts CVT inertia for quicker shifting, torque limiting, and better acceleration in compact off-road vehicles.

Four synchronized drive cables move a vehicle slide-out room evenly, reducing binding, leakage, and underframe modification.

An actuator-driven movable sheave adjusts CVT ratio from torque and RPM changes to hold a selected constant output speed for pumps or alternators.

A gear-driven indicator and limit switches track spindle stroke position, improving axial movement control without complex sensing.

Strategically placed voids in magnetic pole pieces interrupt eddy current paths while preserving magnetic flux modulation and torque transmission.

A pivotable bearing cage lets the spindle nut follow door movement without extra hinges, cutting mounting complexity, space, and maintenance.

A built-in retainer limits sensor axial movement after fixation failure, preserving actuator position feedback and preventing catastrophic loss.

Pre-assembled cable routing and PCB mounting simplify vehicle drive unit assembly while reducing vibration transfer and acoustic coupling.

Integrated valve placement and oil channels in a supporting member cut pressure loss and simplify wet clutch control in work vehicle transmissions.

Interference teeth and a crimped shaft end keep a ball screw fitting shaft from axial pullout under perpendicular moments.

Spring preloading and locking clearance let a drive train shaft engage reliably with low actuator force in a compact electric motor unit.

A parallel motor-screw layout with meshed gears cuts antenna drive length while boosting axial force and simplifying assembly.

A plastic-coated screw thread cuts noise and friction without lubrication while the metal core preserves compact crash resistance.

By moving the motor to the cylinder center, this layout frees both ends for support tubes and simplifies scissor arm assembly.

A segmented steel-resin notch guides nut motion without loosening or damage, improving braking stability while lowering manufacturing cost.

A hollow rotor and integrated rolling lead screw shrink actuator length while maintaining load capacity and reducing installation space.

A thermal integration unit placed between the front motor and trunk box blocks heat transfer while maintaining battery and cabin temperatures.

A thermal integration unit placed between the front motor and trunk box redirects heat to keep cargo temperature stable in an electric vehicle.

A sleeve-mounted output detector keeps rotary actuator sensing accurate despite output tilt while routing encoder wiring inside the hollow structure.

A lobe-based wheel switches from a ring for flat rolling to separated contact points for climbing stairs and steps without enlarging wheel diameter.

Backlash detection and feedback let a motorized laser level mount remove gear-train slack before positioning for more accurate alignment.

Coaxial primary and backup roller screw pairs with electromagnetic clutches isolate jams and keep servo motion running after screw failure.

A pre-assembled cable module enables one-step motor connection and cover decoupling, cutting assembly time while damping vibration noise.

Limiting CVT shift speed when power returns helps a straddled vehicle avoid abrupt behavior changes and maintain ride stability.

A segmented bracket secures a heavy electric motor to the engine case, improving rigidity and preventing belt slip in hybrid engine layouts.

An integrated nut and sliding unit uses guide grooves and a rotation-restricting member to simplify assembly and improve linear motion accuracy.

A sealed clutch housing integrates the motor and actuation assembly to fit eCVT hardware in compact utility vehicles while reducing wear and contamination.

Four synchronized drive cables move a vehicle slide-out room evenly over long travel while avoiding underframe modification, tipping, and seal leakage.

An inner helical groove guides reciprocating rotation inside the case, shortening the moving member while blocking water intrusion.

A bearing-integrated oil channel feeds the rotor chamber in an electric axle drive without shaft holes, preserving strength and reducing fluid-path complexity.

An inward guide surface in the CVT case redirects fan-driven air along the belt and pulleys to prevent axial bypass and improve cooling.

Spring-biased tapered pins engage housing grooves to stop ball screw lash in electric power steering while preserving axial travel.

A cam mechanism and one-way clutch raise belt-pulley friction in a CVT, enabling engine braking and preventing creep when throttle is released.

Opposing guide profiles convert rotary input into shaft extension and retraction while reducing imbalance and reactive forces for longer tool life.

Partial flanges and relief spaces let S-shaped ball-return grooves be forged without axial shifting, reducing nut size and weight.

A two-part lock projection keeps an engine belt tensioner pre-tensioned during installation while preventing loose pin ejection and loss.

A spring-biased three-part tensioner keeps window regulator cables taut, compensates elongation, and supports accurate short-drop operation.

An elastic brake mechanism slows the lead screw during rapid release, reducing retraction impact, noise, and discomfort in linear actuators.

Front-surface cutting lines and a slider-driven wing linkage let a flexible display change curvature without losing structural stability.

A spring-loaded bearing block with sliding elements supports steering shaft torque while compensating rod deflection and reducing noise.

Nonmetal inner chain bodies and varied link pitches cut chain-drive noise while preserving rigidity, assembly ease, and dirt discharge.

Variable-pitch inner and outer links with stabilized chainring teeth cut noise while preserving chain rigidity, assembly ease, and transmission efficiency.

A single motor and selective power transmission handle landing gear steering and retraction while removing heavy hydraulic parts and saving space.

A strain wave gear nested in a barrel cam actuator boosts torque in less space while adding compliance to reduce binding and engagement delay.

A single reciprocating drive moves two swing arms together and apart, boosting dual-head massage strength without bulky dual-motor layouts.

Redundant threaded stages in a coaxial ball screw actuator maintain full travel even if one interface jams or fails.

A widened damper groove lets the clutch weight move back smoothly without interference, keeping assist thrust stable in a centrifugal clutch.

A shared spring-loaded tensioner balances load across two drive belts, reducing tension variation, wear, and motor instability.

A radially reduced flexspline tooth region spreads load near the spline interface, cutting stress peaks and extending flat gearing life.

A thermoplastic elastomer buffer pad on a chain tensioner lever absorbs plunger impact when follow-up fails, suppressing noise and vibration.

Dual compression springs assist the spindle drive at small flap opening angles, cutting motor size, energy use, and noise.

An inward ball return channel inside the spindle cuts external diameter, eases assembly, and lowers rolling resistance in compact actuators.

A sliding block sensor triggers an alarm before electric cylinder quick-release, warning users of sudden bed movement and reducing panic.

An added oil-recovery guide surface captures scattered lubricating oil and feeds the sliding guide surface to cut chain friction.

A recessed housing section places the charging pipe below rotating parts, keeping the pipe simple and improving oil level measurement accuracy.

A spiral moving member with rolling ball elements limits steering shaft angle while cutting friction, noise, and assembly cost in steer-by-wire systems.

A slack-side tensioning pulley and driving-cone diameter compensation keep belt teeth aligned for smooth CVT re-engagement under load.

Relocating the ball return into the spindle with inserts enables one-sided nut assembly, saves space, and reduces friction and noise.

A cogged transmission member engages a leadscrew with minimal slippage to cut friction loss, reduce actuator load, and improve linear drive efficiency.

A nested working-arm and spring layout keeps both belt spans engaged while cutting tensioner size, weight, and tension peaks.

A covered screw shaft and relative rotation move grease into the ball screw circulation path without shaft contamination or excess extrusion.

A single motor and selective gear train drive two pipetting outputs, cutting space and cost while preserving flexible fluid handling.

A thermoplastic elastomer cover layer shields the steel cord and tooth bottom, reducing wear and rust in high-torque offshore belt drives.

An integrated plastically deformable end-stop element damps excessive spindle-drive impact, simplifying assembly and improving closure safety.

A wedge and clamping element adjust steering gear preload precisely with low effort, simplifying assembly and protecting the traction mechanism.

Coaxial or angled belt pulleys shrink radial space in steer-by-wire feedback actuators while preserving torque transfer in the steering column.

A bearing-supported rotating member replaces bulky gear or rod oscillation layouts to cut fan noise, vibration, and instability.

A ball screw nut and multi-bushing actuator layout cuts rod deflection, improves steering durability, and reduces hydraulic losses.

An integral detected portion on the CVT sheave simplifies assembly, cuts sheave weight, and preserves reliable pulley rotation detection.

An impregnated bush between the bearing and diameter expansion member cuts sliding resistance while simplifying CVT support manufacturing and assembly.

A cam-linked shaft turns sheave axial travel into rotation, simplifying CVT position detection while improving accuracy and assembly ease.

Hydraulic slave push pistons move the CVT movable sheave independently of the reactive assembly, enabling flexible gear ratio control.

Tapered anti-rotate pins and spring-biased groove engagement remove lash in electric power steering gears while allowing axial ball screw travel.

Constant slack-side belt tension and torque-based cone diameter compensation reduce tooth misalignment and ratio variation under load.

A spring-loaded tapered pin locks the ball screw to the housing, eliminating lash from tolerance variation and wear in electric power steering.

Movable transparent display panels overlap or separate to balance 3D imaging, wide-screen viewing, and light transmittance.

An elastic contact seal fits a grinding relief groove to maintain ball screw sealing while cutting nut length, parts count, and sliding resistance.

An integrated nut-to-driving-member engagement regulates ball screw stroke ends without a separate stopper, improving compactness and axial control.

Elastic-buffered safety balls keep a linear actuator accurate in normal use and prevent impact damage when the driving nut fails.

A bell-and-actuator coupling varies crank stroke automatically, avoiding manual reconfiguration, complex controls, and motor stress.

A screw-and-cam clutch mechanism cuts transmission size while lowering the motor force needed for reliable clutch engagement.

A tapered return tube tongue reduces ball impact stress at high speed, improving ball screw fatigue life and allowable rotational speed.

Two angle sensors and a gear-ratio model verify steering and motor shaft angles to detect tooth skips and keep steering angle measurement accurate.

A sealed helix assembly with five rollers, dynamic seals, and anti-wear coatings helps CVTs resist debris fouling, retain lubrication, and last longer.

Different link plate shapes keep pitch lines aligned on the sprocket, cutting peak tension while improving silent chain strength and stability.

A dual-function clutch controls pulling head end positions in blind rivet tools while tolerating trapped debris and reducing part count.

Real-time belt gap and speed adjustment keeps buffer tube tension within range, reducing excess fiber length and signal attenuation.

Opposed sliding elements stop push-rod rotation in a rear-axle steering actuator while saving radial space and simplifying manufacture.

By constraining chain slack to the drive sprocket, this case delays chain jump and improves jump torque while enabling narrower chains.

Axial light openings let a monobloc ball screw recirculator guide balls effectively while avoiding undercuts, overlap, and complex molding.

Movable spoke masses and springs create fixed eccentric rotation regions, enabling controlled centripetal force differentials for physical studies.

A rotating side plate lets the winch line be loaded without disconnecting the anchor, while the pulley reduces friction and secures the line.

Mating and securing features hold pulley segments in alignment to limit ratcheting, slippage, chatter, and wear at high load and speed.

An elastic locking member and inclined holding part simplify chain tensioner assembly while damping plunger motion to reduce rattling and noise.

A vertical leading tooth segment and conjugate sprocket improve belt meshing, reducing tooth jump and noise under higher loads.

A one-piece steering output unit with planetary gearing and elastic damping improves torque transfer alignment while reducing NVH.

Mechanical stop devices and a releasable fixation mechanism lock extension or retraction at preset travel positions for reliable adjuster repair.

A plunger relief hole with an O-ring or C-ring simplifies tensioner assembly while stabilizing pressure oil chamber behavior.

Guide-channel tension bands route wrist actuation in smaller surgical tools while reducing cable stretch, cost, and reuse sterilization burden.

A zoned threaded spindle lowers screw resistance in transition sections while keeping stiff positioning zones for faster steering column adjustment.

Concentric gears with interlocking end stops limit rotation after set turns, cutting space use while improving load capacity and scalability.

An axially movable hub bearing inside a pivot shaft belt tensioner reduces interface wear, stabilizes damping, and keeps pulley alignment.

Threaded nested screw rods and tubes cut retracted height while preserving long stroke, with self-locking and oil grooves for smooth lifting.

A runged wire ring tensioner fits between toothed belt spans to raise tension and improve tracking where fixed pulley spacing limits installation.

A channel with integrated protrusions captures a broken drive belt, absorbs its kinetic energy, and limits damage to nearby belt-drive components.

A flexible spine and constant velocity drive maintain end effector articulation and firing stability while reducing friction and wear.

A torsion spring and locking finger replace motorized CVT ratio control, cutting space and cost while enabling normal and high-performance modes.

Similarity-curve tooth profiling keeps harmonic drive tooth tops and roots in continuous contact, improving engagement precision and torque transfer.

Small metal plates fix the ball return guide flush within the spindle nut, easing assembly, absorbing tolerances, and reducing structure-borne noise.

Caulked ribs lock the circulation component to the ball screw nut without pins, cutting parts count while preventing detachment and slip.

Independently movable transition segments and an electromagnetic actuator keep a clutchless pulley transmission shifting smoothly under load.

A spring or gravity torque biases the cam to open the transfer nip during motor failure, reducing jams and maintenance damage.

A cam-driven landing member retracts into the UAV housing in flight, then extends for landing without blocking camera views or harming appearance.

A nut-generated self-load lets the strain detector be checked under known force, improving abnormality detection beyond no-load output checks.

An elastic pressure member auto-adjusts tension pulley position to keep belt tension stable while simplifying assembly and maintenance.

Protrusions locked into outer-ring recesses stop axial movement and radial deformation, helping tensioning pulleys reduce belt wear under load.

A counteracting spider-and-nut screw arrangement keeps the CVT drive shaft joint tight under torque fluctuation and centrifugal force.

A parking pawl locks the back drive chain instead of a metal ring gear, cutting transmission complexity and cost while holding the vehicle stationary.

A lead screw, guide rods, and biased bearings let an autonomous mower adjust blade height smoothly with precise positioning and minimal binding.

An outward-curved scooping path and straight connecting path keep ball return flow clear of the load path in compact high-thrust ball screws.

A 120°-140° sleeve joint layout in winding sleeves cuts wear and raises fatigue limit in articulated chains for longer service life.

A pivoting stop gear creates a hard stop after more than 360° rotation, protecting steer-by-wire hand-wheel components from over-rotation damage.

Adjustable protrusions let one technician align and tension sheave or sprocket pairs accurately, reducing wear, heat, and drive instability.

A passive friction device holds actuator rod preload against a downstop, reducing tiltrotor conversion backlash and unwanted mode shifts.

A curved, non-tangential return groove cuts ball squeezing and impact force in external circulation ball screws, improving flow smoothness.

Segmented angle and height screw-nut mechanisms with axial pre-compression improve steering column adjustment precision, reliability, and noise control.

A multi-joint wrist adapter uses pivoting housings and gears to couple linear-driven end effectors with rotary surgical devices.

A side-operated dial and sliding hooks let display frames lock without axial tool access, speeding setup and teardown in tight spaces.

A cam-driven sliding linkage repositions a notebook keyboard between use and storage states to cut overall thickness without separate actuators.

A belt-driven friction carousel uses an elastic pressing unit and auxiliary drive control to cut noise and speed fault recovery.

Interchangeable CVT discs and transmission sections let one gearbox platform cover multiple harvesting machine series with lower cost and complexity.

A reinforcing seat shares threaded-shaft axial force inside the case, cutting housing pressure so thinner linear actuator walls can reduce weight and cost.

A thrust-based preload regulator lets ball screw preload be corrected without disassembly, cutting adjustment time, cost, and production disruption.

Direct spindle-shaft support against a housing-fixed guide cuts axial space and reduces load on connected shifting components.

Sensor-guided gear preselection and stepper-actuated shifting match motor speed and torque to core bit size for gentler, more efficient drilling.

A pivoting tensioner and clutch let a harvester belt disengage for maintenance without stopping the drive shaft or over-tensioning the belt.

Nested coaxial tubes and dual screw actuators extend stroke length within the same height, helping telescopic adjusters fit tight spaces.

An annular folded flange creates a narrow sealing passage that limits pollution ingress and extends pulley bearing life.

An actuator-driven eccentric linkage adjusts conditioning roll gap during harvesting, while a relief mechanism helps prevent foreign-object damage.

A rising sleeve groove and housing-guided pin deliver fast nonlinear axial stroke while preventing twist in a compact actuator.

By moving stiff drive components onto truck assemblies, this case preserves deck flex while keeping a motorized skateboard compact and portable.

A dual-arc concave bend in the primary pulley dividing wall cuts stress concentration under hydraulic load and avoids soft nitriding cost.

A resin orifice member and external relief hole simplify tensioner assembly, discharge oil and air, and keep oil pressure stable.

Centrifugal sheave actuation and a lock member fix CVT gear ratios without motor-screw drives, cutting complexity and cost.

An integral finger-and-groove pulley attachment removes separate fasteners, easing steering assembly while reducing axial loads.

Carbide blasting and spherical shot peening strengthen thin-walled strain wave gears, cutting wear, noise, and distortion risk.

A dual wet-clutch post-transmission doubles tractor gear options and gear spread while keeping axle-side packaging compact.