Gearing TRIZ Cases

Friction retention eliminates screw connections to reduce radial space while maintaining rigidity against deformation under high torque loads.

A CVT controller raises target line pressure to suppress regulator valve activity and prevent belt slipping.

Paired lifting portions disperse impact forces on rolling balls to suppress collision noise generated at the spiral groove entry.

A chain tensioner cylinder features a threaded hole for inserting a fixing screw to secure the plunger position during maintenance.

Segmented oil supply channels and a self-service storage chamber recirculate fluid to maintain damping force without high-pressure pumps.

Bent leg plates carry rotatable pins to support the chain against a frame while connecting pins engage frame grooves, resolving fixed pin spacing limits.

A flexurally elastic polymer transmission element actuates closing slats with non-parallel pivot axes.

Segmented reinforcing ribs in a chain guide disperse internal stress, preventing concentration errors while maintaining rigidity.

Cam units engage a slidable Geneva wheel to manage high torque shifts without bulky servo systems.

A switching valve disconnects reverse pressure passages during driving to prevent shock from sudden B2 brake engagement.

An electrostatic belt drive transmits power via pulley electrodes, eliminating chafing sounds from conductive brushes.

Spindle stop interacts with a spindle nut to limit travel within a dual-component housing.

Segmented pulleys adjust transmission ratios via belt friction to resolve noise and speed trade-offs.

A spring reaction force converting apparatus uses a link mechanism to transmit compressed spring energy between parallel members.

A movable belt support holder adjusts heating roller and fixing pad positions to maintain consistent tension across the endless fixing belt.

Variable depth spring retainers compensate for assembly tolerances in hydraulic tensioner valves, ensuring precise pop-off pressure control.

A convex piston biases the pawl against plunger teeth, preventing spring buckling and dropout in compact ratchet tensioners.

Curved mating surfaces enable self-centering alignment in vehicle seat gearboxes, reducing assembly complexity and noise.

Cold extrusion forms recesses and stop surfaces on threaded nuts, eliminating peripheral stops to boost production rate while maintaining dimensional accuracy.

A torque transfer joint uses a fastener to draw opposing flats on a shaft and hub into engagement.

Curved pivot surfaces and preloaded bearings absorb road impacts, reducing rattle noise from worm backlash.

Extracting the load sensor from the rotating thrust bearing assembly eliminates interference and improves detection accuracy.

An automatic transmission electrical oil pump operates in a high-pressure mode to supply hydraulic pressure for starting frictional engagement elements.

Helical teeth mesh smoothly with pulleys to reduce operating noise while maintaining strength, preventing speed reduction mechanism locking.

Centrifugal force drives oil through internal pinion shaft channels to high-speed bearings, managing heat dissipation in compact right-angle gear reducers.

Motorized coupling adjustment simplifies assembly while preventing torsional stresses in the Bowden cable core.

A tensioning apparatus locking bracket uses a torsional spring section to connect clamping segments for resilient engagement.

A CVT subtransmission mechanism executes a non-coordinated shift to rapidly change gear positions during kick down operations.

A control apparatus adjusts belt clamping force via hydraulic actuators to suppress rattle noises in continuously-variable transmissions.

An asymmetric slide roller design optimizes contact distances to enable lighter starting torque.

Elastic deformation of semi-elliptical roller beds maintains pitch correspondence, reducing wear and noise in worn chain drives.

Replacing centrifugal actuation with hydraulic pressure decouples the drive ratio from engine speed, reducing fuel consumption and noise at cruising speeds.

An embedded mounting unit consolidates motor and spindle placement, reducing manufacturing costs by simplifying assembly complexity.

Segmented cam plates with notched guide members eliminate deep drawing, reducing manufacturing complexity and cost.

A segmented chain guide rail uses a continuous front-to-rear opening to separate contact sections and reduce material usage.

Multiple small pitch helical drives distribute load across parallel screws to increase actuator power output.

A transmission control device manages hydraulic pressure to maintain vehicle driving properties during actuator failure.

A socket wrench adjusts motorcycle drive belt tension by rotating cams simultaneously.

A controller calculates current CVT speed ratios using sensor data to manage pulley pressures during vehicle operation.

A transmission control system selects target gears based on current velocity and operational limits to optimize shift execution.

A frustoconical bushing with a wear take-up mechanism resists off-axis movement and maintains consistent dampening force in serpentine belt tensioners.

A rotating guiderail alters chain inclination to increase speed ratio and suppress collision noise when the chain belt breaks.

A stepped shaft nut secures to a spindle guide via a mechanically deformed caulking portion that interlocks with the housing structure.

Mechanical cam system replaces noisy electromagnetic actuators to reduce assembly complexity and improve sound performance.

Shared chamber placement with separation means prevents brake dust from contaminating gears, preserving encoder accuracy and reducing overall size.

A ball screw return element uses interlocking projections and receptacles to join body parts without ultrasonic welding.

A drive apparatus for a revolving door rotor uses a clamping apparatus to adjust spacing between the drive device and tensioning device.

Idler gears reduce sprocket diameter and timing chain winding radii, minimizing transverse width while maintaining precise valve timing.