Gearing TRIZ Cases

A female helix with hemispherical lugs and mating guide grooves converts rotation to smooth linear tube travel while preventing rotation and friction.

A breakable coupling lets a motor-driven telescopic steering shaft decouple on impact, absorbing secondary collision energy with less complexity.

A spring-linked pivot plate lever compensates actuator over- or under-travel, keeping a mower mulch gate reliable and easy to install.

A one-piece ball return diverter replaces complex multi-part guides to simplify ball screw assembly, improve guidance, and reduce noise.

Magnetic sensors and a spindle-nut magnet recalibrate incremental position tracking in linear actuators without wear or signal loss.

Movable blade groups use axial and circumferential drive mechanisms to create rich contour shapes in both gathered and separated states.

A curved fixed deflection piece lets roller chains change direction under high load and low speed without wear-prone rotating bearings.

Outward-curved scooping paths and straight connecting paths create ball return clearance in compact automotive ball screws.

An elliptical CVT casing wall follows the belt path near the secondary pulley to prevent contact while keeping the transmission compact.

Symmetrical ball screw transmission and independent shift blocks balance AMT shifting force, avoiding screw position errors and missed gear engagement.

Integrated sensors track wear, damping, temperature, and position in real time to estimate tensioner efficiency and warn before belt-drive failure.

An integral bearing-stop element with dual anti-rotation features simplifies ball screw assembly and avoids self-locking at the travel limit.

A mid-coupler and laterally movable screw mechanism keep steering power transfer smooth under shaft misalignment, reducing seal wear and stress.

By lowering commanded pulley oil pressure near maximum ratio, this case prevents abutment-driven surge pressure and stabilizes CVT shifting.

A single annular change ring switches drill mode and clutch torque, cutting mechanism complexity while improving ease of operation.

A handle-driven wheel linkage gives a camera dolly precise off-track steering while preserving flexible camera and accessory mounting.

Lateral contact faces position the deflection piece precisely while a small gap preserves low-friction ball transfer and lubricant retention.

A tapered driven shaft and dry geared assembly simplify covering transmission assembly, improve gear alignment, and avoid lubrication.

Stacked Belleville springs raise tensioner arm spring rate with less secondary piston extension, improving chain drive load sharing and noise control.

A tapered sleeve coupler replaces keyed shafts to handle large pulley speed ratios with lower noise, simpler assembly, and secure torque transfer.

A separate supplementary member with an engaging hole accommodates thermal mismatch, preventing detachment, breakage, vibration, and noise.

A movable pulley fastener on the rotary arm compensates belt and pulley tolerances, cutting MGU tension variation and power loss.

Separate input gear tooth rows and an axial shaft joint enable compact intermittent drive switching with stable tooth-missing gear operation.

Metallic fibers in the belt covering improve heat, oil, and wear resistance, extending toothed belt life in harsh transmission systems.

An integrated pulley guide helps install high-tension engine stretch belts without separate tensioners or idlers, reducing assembly time and belt tearing.

A metal core overmolded with a plastic thread simplifies spindle production while improving load capacity, heat dissipation, and adjustment stability.

A radially inward fastening region and 45° boundary geometry shift stress outward on a power steering output pulley, improving durability.

A multi-stage epicyclic lock assembly redirects torque to prevent unintended extension and enable reliable unlocking under high loads.

Engine oil damping and a spring help this eccentric belt tensioner maintain stable belt tension despite torque fluctuations and low oil pressure.

Varying guide-surface heights let one chain guide control chain position, track, and contact length across different chain types.

Superposed nut components with matched raceway and abutment surfaces ease assembly while forming precise endless ball recirculation paths.

A load-responsive hook and link latch releases the roller during deployment, preventing landing gear shrink latch jamming and reduced-capability landings.

Buried glass or carbon fiber cords raise belt rigidity to suppress noise and vibration without sacrificing bendability or cold endurance.

A CVT discharge mechanism vents pump oil during valve switching to avoid motor lockup, maintain hydraulic pressure, and prevent belt slippage.

A hollow-spindle and dual-nut transmission assembly supports both orderly and reverse lifting column assembly, cutting cost and simplifying mounting.

By limiting pressure differences across CVT oil passages before valve switching, this case prevents unintended shifting and pulley slippage.

Internal piston reservoirs and check valves shorten oil paths, cut pressure loss, and keep engine chain or belt tension more consistent.

Plastic working with a projected mandrel smooths the ball transfer path, cutting abnormal noise and improving bridge-type ball screw durability.

A cantilevered transfer assembly pivots away from belt protrusions, then drops back by gravity to keep article transfer smooth and damage-free.

Separately molded gear and eccentric blocks use cavity-guided embedding and rivet fixing to cut defects, labor, and mold damage.

Controlled oil discharge through a piston-restricting orifice stabilizes chamber pressure, improving chain damping and reducing looseness and noise.

Rotors with jointed arms strike lever-driven shafts through one-way clutches to vary output ratio and convert motion with directional control.

Conductive damping material grounds the pivot arm in an orbital tensioner, dissipating static charge and preventing sparking in starter-generator drives.

A distal-end stopper mounting layout cuts lever deformation under high torsion spring load, improving chain tensioning, assembly, and noise control.

A rotary member switches from free adjustment to pivot-arm limiting, helping a belt tensioner prevent slippage and ratcheting while easing installation.

An integrated planetary and worm gear stage adjusts main shaft phase in a needle-punching machine without added space, complexity, or torque loss.

A rigid shell, clutch, and wand-driven gear layout cuts shade-to-frame gaps, reduces light leakage, and avoids cord safety issues.

Pre-aligned cradle and support arms form one bodymaker mounting module, cutting installation time, alignment work, and damage risk.

A rotatable gear retainer inside the drive gear removes the cover plate, improving ratchet wrench sealing while reducing head thickness.

A tab-in-slot anti-rotation feature stops drive bracket pivoting, reducing lateral rivet fatigue and preserving steering column collapse performance.