Portable Lifting TRIZ Cases

A remote controlled lift assembly uses a winch unit mounted on scaffolding outriggers to move cargo via wireless signals.

Internal metal teeth transfer meshing forces from plastic external teeth toward the hub, resolving strength and noise trade-offs in worm reducers.

Force sensors on the hoisting rope translate operator displacement into precise height adjustments, resolving safety risks from remote controller distraction.

Segmented side sections and a pivotable top section allow flat-ground cable loading without tension adjustments.

A manual handling device monitors strand angle and shifts the pivot point to maintain vertical alignment.

Segmented guide grooves in the chain inlet align irregular links to prevent jamming while enabling limit switch activation.

Three-pronged drive gears engage helical recesses to refurbish worn OPC drums, reducing remanufacturing complexity.

A computer-based force amplifier converts user-applied input into amplified mechanical output, eliminating the need for multiple workers to handle heavy loads.

Segmented press-fit teeth cut into the bore while a concentric boss aligns components, eliminating space constraints for traditional fasteners.

Strain gauges mounted on the pulley pin measure radial deformation, resolving fastening sensitivity and improving measurement accuracy.

Segmented jib tools resolve the contradiction between task versatility and switching complexity by allowing quick repositioning of the sheave segment.

Self-actuating friction prevents unintended movement while eliminating manual levers and complex control systems.

Opposing rope threading creates a frictional lock between two interconnected pieces, enabling easy load release from any direction without manual intervention.

Shot blasting creates a high-friction layer on V-pulley grooves, reducing slippage during heavy-load transmission.

Reduced addendum teeth prevent lubricant accumulation in gear roots, ensuring uniform distribution across tribologically stressed flanks.

A chain block built-in cover prevents lubricating oil lack in high-speed gears by retaining grease within a continuous circulation shape.

A pulley mechanism uses a movable pushing element and sensor to detect the rope end.

A truck cap lifting kit uses sliding masts and rails to enable single-person operation for removing and storing heavy caps.

A nacelle crane employs a double wire guide system with pivotal track-cut wheels to prevent cable contact during yawing movements.

A ratchet spool uses a pivotable pawl and lever to wrap cord for high tension.

Extended portions on gear teeth divert fluid flow to reduce windage losses, cutting energy waste by up to 60% without adding external shrouds.

A knurled spool and spring-loaded pawl secure small diameter cords through frictional engagement.

A differential crown rim uses progressive thickness variations to enhance structural flexibility and reduce gear tooth biasing under load.

Segmented mounting supports enable easy roller replacement in a driven pulley, reducing manufacturing costs while maintaining structural integrity.

A climbing belay device uses a movable pulley to adjust rope friction automatically based on climber weight.

A winch employs a one-way bearing and friction disk to hold a crossbow bowstring, preventing unintended release without complex ratcheting components.

Circular arc tooth profiles increase flank load capacity while maintaining undisturbed geometry to reduce wear and noise.

Clutch spring disengages during deceleration to reduce vibrations and noise while maintaining torque transmission.

A bimetallic sensor mount fuses corrosion-resistant and weldable materials to prevent interface degradation and maintain wheel speed detection accuracy.

A motor pulley reduces noise and vibrations by shifting resonance frequency above critical thresholds through specific tooth count selection.

A transmission pinion uses a biasing member to maintain constant gear engagement, eliminating backlash noise and vibration during direction reversal.

A cable hoist system lifts fiber optic cables to elevated building positions using a pulling tape and locking mechanism.

Inclined tooth base surface guides core bar engagement on elastic crawler sprockets.

Axial deflection rods link coaxial gear teeth to maintain constant torque transmission, eliminating structural weakening from radial openings.

A gear wheel with a U-shaped elastomer track decouples impulse paths between the ring gear and hub part.

A winding machine motor control system switches between assistive and non-assistive balancer modes to regulate drive torque.

A spring-biased locking cam engages a pulley rope to permit uni-directional movement.

An electromechanical belt pulley arrangement couples a rotor to the drive belt and a stator to the output shaft for variable torque transmission.

A gear tooth profile with multiple involute portions uniformizes stress variation across the tooth bottom side area.

A variable pulley transmission adjusts motor speed for an air compressor, preventing sudden torque shocks that damage components.

Protruding bushings replace screw-nut assemblies in split pinions, eliminating nut holes that clog with dirt and deform under friction forces.

Optimized microstructure with spheroidal cementite particles enhances deep hole machinability without thermal refining or expensive alloy elements.

Scissors linkages automate tarp deployment, reducing manual labor and preventing fabric damage during installation.