Gearing TRIZ Cases

Heat flux sensing tracks tiny ball screw displacement from wear, enabling faster and more accurate failure detection without electrical noise.

A spring-loaded locking mechanism secures a belt tensioner in preset positions to prevent uncontrolled arm movement during assembly or belt failure.

A cam-driven rotation stop locks the steering shaft when driver torque exceeds reaction torque at wheel limits or curb impact.

Adjustable guide and contact angles let a wedge-based motion transmitter change output speed and direction while staying compact and light.

A larger stopper ball stabilizes the coil spring in a ball screw raceway, reducing distortion, wear, and shaft interference under axial load.

A removable shaft member shifts the pivot arm between installation and operating stop positions for easier belt fitting and stable tensioning.

A cam-driven spring preload lets the parking lock re-engage without battery power, avoiding unsafe P-stage release during emergencies.

A nested torsion spring layout cuts tensioner height while maintaining belt timing and resisting tooth jump in oil-lubricated drives.

Axial self-aligning bearings let the ball screw pivot relative to the housing, avoiding tilting torque and tension that shorten service life.

A battery-powered driver with a link-and-cam trigger actuator lets concrete roller screeds run without cords, improving worker mobility.

A twisted multi-point contact path keeps balls stable as centrifugal force changes direction, reducing snaking and smoothing return travel.

A bias-member counterforce offsets belt tension on the crankshaft pulley, keeping net radial force within safe limits under higher accessory loads.

A horizontal toothed-belt telescopic drive cuts height while letting stacker cranes reach multiple storage compartments for faster goods handling.

Opposed axial loading and posture correction suppress eccentricity and inclination errors in ball screw clearance measurement.

A flexible drive member lets one actuator switch a walk-behind mower between two-wheel and all-wheel drive without tools or extra controls.

Two IR sensors and a signal processor track belt vibration and tooth frequency to calculate dynamic tension during operation and prevent failure.

Two motors drive a planetary linear actuator with fault detection, brake switching, and wear alternation to maintain operation after motor failure.

A pre-compressed elastic buffer and movable outer sleeve absorb shock loads in linear actuators, reducing vibration damage and improving durability.

Magnetic sensing recalibrates spindle nut position in a linear actuator, avoiding switch wear and lost pulses for reliable synchronization.

An internally threaded hollow shaft and internal ball return path reduce actuator length while resisting buckling under eccentric loads.

A modified Scotch yoke lets a sailboat propeller auto-return to feathered position while cutting drag, shaft loads, and gear complexity.

Inner and outer cam tracks guide piston motion while modular plates let engine capacity scale with simpler assembly and cooling.

By moving the screw sleeve gear outside the rear bearing seat, this case cuts riveting transmission size and simplifies assembly in tight spaces.

Inclined clutch teeth, a synchronizer ring, and controlled hydraulic thrust cut sliding pad wear while keeping gear engagement stable.

Multiple movable rings extend two-way rotary positioning beyond 180 degrees while avoiding mechanism interference in compact assemblies.

A hydraulically adjusted variable-speed baler drive lowers startup torque to prevent tractor stalling and reduce stress on heavy plunger components.

Oppositely wound helical spring sections and guide tubes cut rattling in vehicle opening panel actuators by keeping spring motion linear.

A compact multi-arm linkage converts rotation into accurate straight-line motion while deploying a support arm to maintain stability through extension.

Inclined engaging pieces contact tapered surfaces over a wider area to resist wedge-driven deformation and keep the auto-tensioner secured.

Integrated roller pressure sensing tracks drive belt pretension during operation and feeds tension control to reduce downtime and belt wear.

A spring-biased follower in the drive assembly keeps surgical instrument cables tensioned during jaw manipulation to prevent slack and dislodgment.

A Hall IC and magnet directly sense movable sheave position from magnetic flux changes, improving CVT displacement accuracy without contact.

Interlocking pulley parts and bearing-ring recesses stop axial movement and radial deformation, improving belt support under heavy loads.

Circumferential fixing fingers and a spring ring simplify linear actuator rear mounting while securing alignment and pull-off resistance.

Axially offset connecting sections and flange recesses reduce installation space while moderating stress in harmonic transmission components.

Independent biasing members constrain a prismatic steering member to resist ball-screw torque and keep steering gear-rack mesh aligned.

An inner-sleeve relief valve controls excess oil pressure inside a compact chain tensioner while cutting parts, assembly steps, and oil loss.

A fixed-housing pulley mount keeps bearings dynamically loaded during engagement, preventing false brinelling and extending belt drive life.

A stepped annular spring body damps belt-drive vibration and noise while keeping the pulley outer ring and inner disk coaxially stable.

A lever arm and rail path boost actuator force to control mold roll nip pressure while avoiding roll surface damage during resin molding.

A mass-balanced ground lock uses bearing geometry and friction moment to prevent unintended landing gear lock movement with less spring force.

A pivot-mounted spindle nut lets hatch drives follow motion without extra connecting parts, cutting space, cost, and mounting complexity.