Toothed Gearings TRIZ Cases

Ultrasonic welding joins a thermoplastic steering coupling to knurled shafts, boosting torque capacity while simplifying assembly and reducing crack risk.

Strategic clutch and brake engagement across four planetary gearsets delivers nine forward ratios without an overly complex transmission configuration.

An internal piston-cam pump recirculates lubricant in a screw-nut actuator, cutting leakage risk, bulk, and fluid recharging needs.

Selective clutch and brake engagement across four planetary gearsets delivers nine forward ratios without a more complex transmission structure.

A linking gear rotates part of the unpowered clutch mass, cutting synchronizer load, shift time, cost, and reverse layout complexity.

A four-gearset, six-coupler layout achieves nine forward ratios by reconfiguring torque paths without excessive transmission complexity.

A planetary gear assembly amplifies rack-driven angular motion in nose wheel steering, cutting system size and weight while preserving torque.

Brake-controlled planetary gear train units enable shifting under load while reducing friction losses, gear wear, and large-ratio limits.

Multiple planetary gearsets and a variator bypass clutch cut ball variator load at vehicle launch while preserving continuous ratio control.

Inverted adapter plates and gear splines let one compact turbine gearbox fit multiple accessories while reducing spare parts and assembly errors.

A sterile adapter and flexing latch isolate the actuator from the sterile field while enabling quick surgical instrument changes.

A three-planetary layout delivers eight forward gears with fewer clutches and brakes, cutting transmission size, weight, and complexity.

A spider gear and hydraulic load control approach replaces belt friction to vary ratio continuously while improving torque capacity and wear resistance.

A dual-diameter gear train slows the supply roller to cut toner friction and deterioration while maintaining stable toner delivery.

Metal outer pins in a resin internal gear conduct heat away, limiting temperature rise and preserving reduction gear strength and lifespan.

A nested step pinion planetary layout delivers multi-speed gear reduction in a compact transmission while meeting demanding ratio targets.

A shallow-recess coupling slot guides the tooth into engagement, reducing hammer-blow noise and smoothing gearbox shifts.

A metal inner wheel and resin outer wheel keep tooth thickness uniform, reducing molding shrinkage errors while improving holding power.

Nested planetary gear elements couple and synchronize adjacent transmission gears while cutting axial space and preserving shifting flexibility.

Interconnected planetary gearsets and selectable torque mechanisms create 10 forward ratios while balancing tractive effort, losses, and packaging.

A formed tab-and-groove joint replaces press fits or bonding to securely join sun gears and planet carriers across wider material pairings.

A flexible pinion gear shaft structure compensates carrier deformation to preserve gear meshing and prevent premature tooth wear.

A movable gear and clutch keep the developing roller rotating in one direction while enabling precisely timed toner supply and less leakage.

Floating annular restraining members limit axial gear movement while reducing sliding abrasion and maintaining lubrication for reliable use.

Axially segmented flexible gear disks with spring-linked tooth segments compensate tilt and tolerances to cut backlash, noise, and meshing faults.

An oblique rolling-force path and movable planet gear axis improve power transfer while reducing dragging movement and frictional losses.

Radially elastic flat frames let planet wheels shift to absorb tolerance errors, reduce dynamic loads, and extend traction gear life.

A spring-loaded reel and clutch simplify tripod setup, enabling compact packing, quick height adjustment, and stable leg tensioning.

A symmetrical gear and clutch layout reverses output rotation from one input while reducing support complexity and improving stability under load.

Controlled hardness and lubricant storage help the flex spline and wave generator resist seizing, wear, and fatigue under poor lubrication.

Parallel actuation of transmission shifting elements shortens gear disengagement time while keeping gear engagement controlled and reliable.

A multi-axis input coupler layout shortens infinitely variable transmissions while reducing engine inertia return, stress, and startup vibration.

Linkage arms restrain the ring gear in an epicyclic drive to cut transmitted torque, easing loads on helicopter engine components.

Infrared heating on a continuous double-shaft mould cuts oven heat loss, saves floor space, and supports complex rotomoulded shapes.

By nesting the gear select clutch inside gear recesses, this case removes external shift levers and shrinks transmission size for easier vehicle mounting.

A shared sun gear, ring gears, and shift elements deliver multiple EV ratios for degraded-drive torque without bulky gearbox complexity.

A two-stage speed reducer merges driver and motor torque into one output line using crank and gear transmission to shrink steering assist packaging.

By tuning strain wave gearing to ratchet under overload, the transmission protects other powertrain parts without a separate torque limiter.

Selective friction and form-fit engagement synchronizes planetary transmission elements to improve shifting efficiency and reduce wear.

Two parallel transmission lines and axial gear offset reverse input-output rotation while keeping the reduction gear compact and reusable across variants.

Asymmetrical coupling of two differentials lets the output shaft overrun during coasting, eliminating engine braking and preserving wheel speed flexibility.

Multiple PTOs stay driven during gear changes through direct-drive and countershaft clutch paths, reducing losses and avoiding load interruption.