Gearing TRIZ Cases

Segmented nested stages in a roller screw reducer overcome insufficient reduction capacity, enabling compact coupling with high-speed electric motors.

A transmission controller adjusts hydraulic pressure to shift a variator to a mechanical Low speed ratio.

Synchronized servomotors on parallel drive shafts operate toggle levers to reduce mechanical complexity and simplify cleaning.

A belt installation jig maintains position through captive interaction with the belt and pulleys, eliminating bulky attachment structures.

Integrally molded transmission guide uses rigid base side walls to constrain lateral chain movement, preventing straddling and side wall bending under load.

Replacing injection molded plastic with a segmented bent sheet metal housing lowers production complexity and cost without sacrificing load-bearing capacity.

A ball screw end cap uses a helical bulge to engage the screw groove and prevent radial movement.

A torque splitting device decouples pump speed from engine rotation to supply variable fluid flow.

Level adjustment mechanism changes screw-fitting position to reduce wear on threaded shaft and ball nut during continuous operation.

A dual-arm tensioning system uses a central motion transfer body to drive symmetric arms for simultaneous chain tensioning.

Segmented plunger-biasing spring prevents retainer wear by isolating radial expansion from axial biasing force.

Segmented screw and counter elements enable universal headlight adjustment while reducing manufacturing complexity.

A pivoting nut assembly enables self-alignment within a telescoping drive gear mechanism.

Actuator engagement moves along inclined line instead of phantom line, reducing transmission case opening length to shorten shaft distance.

Porous sealing elements enable reliable gas exchange in hydraulic tensioners, eliminating complex valve assemblies and reducing production costs.

Air bleeding hole in contact member prevents foreign substance entry into piston structure while maintaining adjustable reactive force.

A transmission controller executes non-synchronization shifts in a sub transmission mechanism to change speed ratios independently of the variator.

Segmented gear construction using beam welding reduces material costs and production weight while maintaining structural integrity for large transmissions.

Dedicated cooling passages in a CVT housing direct airflow to dissipate friction heat from the belt, reducing thermal stress and wear.

A dual tensioner assembly uses a common pivot and independent torsion springs to bias two belts.

Segmented tube walls with localized thickening enable strong crimp connections that reduce hold system weight without compromising structural integrity.

Low-pass filtering the duty ratio of pulse voltage applied to a transmission motor suppresses gear ratio change shocks and improves drivability.

Merging the seat member with the plunger bottom protrusion eliminates separate components, reducing oil leakage risk and production workload.

Cartwheel flexure actuator eliminates screw wear and lubrication needs by converting rotation to linear motion through elastic deformation.

Segmented one-way lead screws and a planetary gear assembly enable automatic unilateral transmission, eliminating complex two-way threading costs.

A linear actuator uses a helical support shoe to distribute load along a contact line on the rolling track.

A ball screw seal incorporates a grease reservoir portion and inclined slits to manage lubricant volume.

Varying the radial distance of the cam contact track along the rotational angle optimizes the force curve and reduces mechanical wear on the locking mechanism.

Merging the reduction stage and range shift transmission into one unit eliminates separate switching devices, reducing axial length.

Movable pole pieces in a magnetic gear enable adjustable speed reduction ratios, eliminating the need for complex mechanical disassembly.

An inertial valve blocks fluid flow during braking events to prevent track ratcheting, ensuring reliable traction and reducing wear on heavy equipment.

A control device adjusts primary pulley rotation speed to maintain sufficient oil discharge and hydraulic pressure at the secondary pulley.

Inclined plates and ball joints generate spindle oscillations, replacing cams to reduce friction and wear.

Solenoid valve switches off early to prevent cavitation and reverse fluid flow in hydraulic variable engine valve actuation systems.

A cone pulley drive uses a radial stop on the drive shaft to limit traction element running radii and maintain precise transmission ratios.

A belt tensioner damper uses a trough and annular protrusion to maintain consistent frictional contact between the arm and the body.

A ratchet tensioner uses a segmented plunger rack to allow free initial movement before engaging the pawl.

Distributed bearing segments reduce pressure oscillations and vacuum formation in long-stroke spindle motors.

Centrifugal flyweights generate motor torque to twist rotor blades, eliminating complex electromechanical actuators and reducing installation complexity.

Oriented tension reducing sprockets minimize peak chain tensions at specific resonance modes while preventing force concentration at other frequencies.

A dual motor generator power output apparatus uses a planetary gear train to manage rotational speed and torque within a compact hybrid drive housing.

Shift valves block fluid pressure to variator rollers, preventing unintended torque reversals during clutch overlap.

A tensioning device uses a groove-shaped link guide to displace the roller via combined linear and rotational motion.

Segmenting the pulley unit into two mechanisms extends the transmission ratio range while maintaining high belt efficiency and reducing ring damage.

A tensioner with two pulleys on a sliding arm balances belt forces through linear movement.

A hydraulic tensioning device uses a sliding stop element with radial functional sections supported on axial extensions to reinforce contact areas.

A unitary check valve integrates the retainer and ball seat into a single bent element to simplify assembly.

Bumpers space internal pawl surfaces to limit pawl spring compression, preventing over-compression damage and enhancing ratchet wrench durability.

Stopper blocks fastened to the lead screw neck engage thrust bearings, eliminating pin holes that weaken cross-sectional strength under impact.

A tension roller moves between relaxed and tensioned positions using a butting member to prevent creep deformation while maintaining low torque.