Toothed Gearings TRIZ Cases

A spiral drive gear with constant radial pitch enables larger reduction diameters while lowering molding cost and fitting noncoplanar shafts.

An elastically deformable pin between the internal gear and gear case absorbs abnormal impact shock to protect the reduction gears.

A worm first stage and spiral second stage achieve high reduction ratio in a compact actuator while cutting height, weight, and cost.

A sterile adapter passes signals and RFID across a drape, protecting actuator electronics while speeding surgical instrument exchange.

A strain wave gear is tuned to ratchet under overload, protecting other powertrain parts without adding a separate torque limiter.

An eccentric lobe-and-protrusion reduction assembly lowers tool speed to reduce procedural variables, part stress, and alignment issues.

A movable gear coupling keeps developing roller rotation consistent while enabling precise toner supply timing without added components.

Elastic flat frames let planet wheels shift radially to absorb tolerance errors, balance loads, and extend traction gear life under vibration.

Grooved boss press-fitting plastically deforms the sheave to create a weld-free CVT pulley joint with axial and rotational load support.

A nested two-stage planetary layout enables under-load shifting with many gear stages while reducing axial length and avoiding brake losses.

A two-cam follower layout cuts torque fluctuation and wear in sheet feeding by switching contact zones while keeping pressing force stable.

A two-stage epicycloidal-cycloidal reducer gives a prosthetic wrist compact size, high torque, silent motion, and self-holding under static load.

A reduction gear train between the reel and axle limits tape whip, protects the blade, and supports longer tapes in a smaller housing.

Using fewer pillars than crankshafts, this carrier layout simplifies reduction gear manufacturing while preserving stable support and power transmission.

Churned gear oil is captured by a guide plate and routed to a hollow shaft space and bearing, improving lubrication without a separate pump.

A worm-drive ratchet with sealed bearings, directional switching, and interchangeable sockets speeds fastener work in confined spaces.

A CVT plus selectable high, low, and neutral gearing improves snowmobile speed and torque control in forward and reverse.

Segmented flexible gear teeth and angled rigid gear profiles reduce interference, improving meshing efficiency, load capacity, and service life.

Fixed and movable gears keep rotating supports level, improving article transport efficiency and durability without complex lifting mechanisms.

Relocating the mode switch above the main trigger lets users change motor state or light level with one hand while gripping the tool.

A plastic threaded element molded onto the gear wheel core reduces assembly effort while improving load capacity and durability under stress.

Hall sensor and magnet-based detection pins confirm sterile adapter and instrument engagement while preserving sterilization compatibility.

A snap-locked wedge element and pre-stressed spring simplify transmission assembly while enabling reliable axial play compensation and visual checks.

A toroidal spiral face drive with dual-function gears boosts torque density and positioning accuracy in compact slewing and robotic joints.

Axial protrusions lock the thrust washer against rotation in a planetary gear, cutting noise and wear while preserving axial support.

Ratcheting in strain wave gearing absorbs overload like a mechanical fuse, protecting the powertrain without a separate torque limiter.

Two resilient latch arms and opposite-side release buttons enable fast sterile instrument exchange on teleoperated actuators without damaging sensitive components.

A circular wave generator and elastomeric toothed belt reduce strain wave gear NVH while preserving torque, accuracy, and compact lift packaging.

Variable damping between a steering rim and hub blends driver and autonomous inputs while giving continuous haptic feedback.

Rotatingly pre-tensioned eccentric planet connectors adjust radial gear position to remove backlash and maintain precise positioning despite wear.

A tuned hardness ratio and flex spline oil reservoir reduce seizing, wear, and lubrication loss in wave gear contact surfaces.

An angled bevel-gear layout compresses speed reducer diameter and thickness so the drive fits within turntable dimensions.

Defined profile shifts let three evoloid planet gears reach 24:1 ratios without collision, preserving load capacity and compact torque output.

An internal selector barrel and shoe assembly replace fork spacing between gears, shortening gearbox axial length while preserving accurate shifting.

One-sided split bearing and molded shaft-wheel interfaces simplify cycloidal-planetary transmission assembly while preserving precise alignment.

A bidirectional ratchet gear and clutch mechanism turns swing-lever reciprocation into continuous one-way rotation with lower friction and less complexity.

A translating and rotating selector shaft coordinates phased shift elements for compact duo-synchro gear engagement without sensors or actuators.

A central disk between two sun gears preserves compact axial space while maintaining lubrication and preventing gear contact.

Offset cams, tilting pins, and coaxial gear wheels cut reducer size, noise, and vibration while delivering lower speed and higher torque.

A metal inner wheel with a cylindrical engagement zone and resin embedding suppresses worm wheel pitch errors while maintaining holding power.

Folded balance portions create double-thickness hole regions, enabling dynamic balancing of a planetary carrier without weakening the spider.

Motor-driven worm gears rotate and elevate outrigger poles for safer stowage and deployment without hazardous manual handling on rocking boats.

A dual shift-rod groove and lock-pin layout blocks inadvertent forward or reverse selection while simplifying gearbox assembly.

A ratchet-and-stopper shift lock blocks accidental downshift rotation to prevent double meshing, torque interruption, and transmission damage.

A movable gearwheel bearing shifts the engagement zone opposite to wheel motion, raising transmission ratio while limiting force buildup.

Axially segmented flexible gear wheel disks use spring-linked tooth sections to compensate tilt, reduce backlash and interference, and improve torque transfer.

An injected carrier ring between the hub and gear rim improves plastic flow uniformity, structural integrity, and steering torque transfer.

Different circular pitches on a shared gearbox wheel enable offset-angle gear meshing, compact alignment, and smoother torque transfer.

A clutch-locking sequence mechanically blocks the transmission at low speed, holding work vehicles on slopes without slip heat or fuel waste.

A speed-sensed lockout assembly blocks locking element activation above a threshold to prevent race locking and cut EV transmission energy waste.