Portable Lifting TRIZ Cases

Axial thrust bearings allow angular tilting of the rotary drive to absorb meshing deformations, reducing stress on ball races in the rack and pinion system.

Asymmetric tooth difference and curved surfaces disperse contact locations to prevent backlash while achieving high reduction ratios in compact designs.

Spline-interpolated tooth profiles eliminate fluid entrapment and ripple noise while maintaining displacement performance.

Non-uniform press-fit allowances reduce tensile stress in ring gear tooth roots, improving fastening security without compromising structural strength.

Segmented channel design widens toward an end face, allowing transverse links to rotate freely and preventing blockages during retraction.

A wire rope hoist uses a swivel sheave to guide the hoisting rope vertically along the drum axis.

Centrifugal brake elements expand against a housing surface to constrain load chain velocity, preventing dangerous whip effects when the freewheel engages.

A conical base shock absorber guides a power steering push button with one elastic member, preventing tappet tilting and metallic impact noise.

Drop forged gear rim segments form dense material structures, reducing shrinkage defects and improving load capacity in large diameter bearings.

A hand winch friction device creates a torque threshold that prevents accidental brake activation during rapid unwinding while ensuring secure load holding.

Laser-infused friction patches on the pulley surface mitigate belt slippage and noise while tight bolt tolerancing ensures precise shaft alignment.

Three-dimensional tooth surface modification reduces rotation transmission errors caused by misalignment in plastic helical gears.

Segmented stator plates apply skew conditions to tilt planet axes, resolving precision versus complexity trade-offs in CVT ratio control.

A portable lifting device uses a battery-powered motor to wind a string, enabling mobile operation without external power infrastructure.

Optimized cam pin geometry increases clamping force without enlarging the locking system, preventing cable slippage under heavy suspended loads.

A CVT gearbox control unit adjusts axially movable cone pulleys via an actuator to resolve centrifugal governor limitations and improve fuel efficiency.

A filtering pulley transmits torque bidirectionally using an elastic assembly and damping mechanism to manage dynamic loads.

Adjusting the air gap of a hysteresis clutch enables slip before rated load, damping jerk effects and providing speed-based operator feedback.

A sheave groove incorporates a wear indicator element to monitor cable degradation.

A combination double bottom block locks two pulleys and adds a floating pulley to bridge gaps, reducing deflection angles while maintaining full lifting height.