Gearing TRIZ Cases

A drive train applies torque to a claw clutch assembly to generate differential speed between hubs before engagement.

Annular valve element in circumferential groove selectively removes air while suppressing oil loss to stabilize engine operation.

Segmented cable pulls transfer closing elements to an ineffective state during operation, preventing clothing entrapment in motor vehicle doors.

A vehicle height adjustment device uses a switchable locking mechanism to protect the movement thread from mechanical shocks.

A crankcase gear layout overlaps pump and drive gears to reduce engine footprint.

Stationary linear guides constrain backward buckling of a compressed toothed belt span, reducing initial tension and noise while maintaining drive efficiency.

A composite thrust rod combines carbon steel with high elastic modulus inserts to increase stiffness.

Biasing mechanism transitions between engaged and disengaged gear states to resolve the contradiction between automated retraction and manual driver control.

Concentric cylindrical bushings provide frictional damping in lubricated environments, maintaining belt tension and reducing vibration risks.

A dry lubricated rotary actuator drives rotor blade flaps using a brushless motor and harmonic gear set.

A hydraulic tensioner lifter drives a main arm via a pivotally supported sub-arm to maintain constant tension on an elongating timing chain.

Interleaved metal links embedded in a toothed rubber belt resolve the trade-off between timing chain strength and belt noise by reducing parasitic losses.

Inner plate height exceeding chain pitch reduces weight and pin warping while preventing local bushing wear without increasing overall chain size.

A linear actuator integrates a motor sleeve, connecting sleeve, and outer sleeve to create a coaxial drive structure.

Dual drive sources synchronize swinging and extending motions of a wiper arm to enlarge the wiping range into upper windshield corners.

A transfer mechanism uses a drum cam and screw to adjust clutch position for torque control.

Segmented chain links with variable pin spacing adjust to the driven gear diameter, reducing rotational inertia and energy loss during torque transmission.

Bypassing the conical disk transmission during travel drive prevents groove formation and extends service life under heavy diesel engine loads.

A continuously adjustable vehicle shifter uses a height adjustment mechanism to reposition the shift shaft relative to the body.

Coaxial hollow drive gear arrangement eliminates non-axial insertion complexity while providing dedicated wiring channels inside the wave generator.

A clutch actuator uses a separated crank shaft and bearing to reduce component thickness.

Magnetic sensors on the tensioner block measure head pulley rotation to prevent haul truck overloading and optimize material transfer rates.

A radial damping mechanism uses a ramp face and damper cup to provide asymmetric frictional resistance during belt tensioner wind-up.

Radial cooling passage in ball screw nut reduces assembly complexity.

A tensioner uses wedging damping members to maintain consistent belt tension through frictional engagement.

Segmenting engine and motor inputs via a hydraulic disconnect clutch maintains pressure reliability while enabling selective power distribution.

A telescopic screw terminal uses a single drive profile to rotate coaxial sections simultaneously.

A drive unit integrates a frictional element along the motion pathway to eliminate free play noise and maintain secure positions.

A spare wheel pickup unit uses a cam and displacement support to increase the lever arm for releasing the safety actuator hook.

Segmented coil spring prevents check valve tipping during maintenance by radially compressing its large-diameter part to fit through the valve setting hole.

Segmenting the axial bearing into two units allows high frictional torque during release, overcoming static friction without increasing complexity.

A two-speed linear jack uses variable thread pitch assemblies to extend rapidly and lift heavy loads efficiently.

A modular powertrain module integrates a disconnect clutch and electric machine within a shared housing for flexible vehicle configurations.

A control device differentiates inertia phase time periods between a variator and an auxiliary transmission mechanism to synchronize shifts.

A vehicle seat adjustment unit uses a universal housing to support bidirectional spindle nut rotation for interchangeable drive concepts.

A swingable developing cartridge uses dual regulated portions to maintain precise alignment between the developer carrying member and image bearing member.

Synthetic resin covering member on ball screw nut reduces moment of inertia, suppressing high-speed vibration without adding counterweights.

A continuously variable transmission drive pulley uses a cam system to dynamically adjust gear ratios in response to torque demands.

Radially prestressed slotted sleeves dampen spindle vibrations and reduce noise in linear drives.

A belt tensioner assembly uses a single carrier to mount both an idler and tensioner pulley on the same pivot axis.

Zig-zag notches and strip-shaped features prevent disengagement from thermal expansion and vibrations in engine timing drives.

A clutch uses a spring element for rapid engagement while an electric motor handles disengagement.

Single motor drives aircraft door via screw nut system and pivoting arm, reducing mass and complexity of multiple motor systems.

A split nut drive allows manual retraction of surgical tools without computerized control, enabling axial movement while maintaining engagement stability.

Integrating a nonmagnetic metal cover with the motor housing eliminates bulky resin seals, resolving device size constraints and improving layout flexibility.

Replacing spiral tortuous paths with restricted piston nose holes reduces device complexity while maintaining precise oil pressure and effective air venting.

Pivotable locking keys secure wiper linkages in transport position without cutting tools, reducing waste by remaining on the assembly.

Tapered interference fit rigidly connects idler wheel to shaft, eliminating axial sliding wear on expensive splined components.

A multi-output differential module distributes driving power from a single unit to multiple proceeding wheels on an inspection robot.

A hydraulic auto-tensioner relief valve restricts oil flow through a dedicated orifice to stabilize damping performance.