Portable Lifting TRIZ Cases

Para-aramid fiber and cured thermosetting resin strengthen lightweight gears against high and low load wear in compact drive units.

Stacked disc sprockets achieve wide axial width with precise tooth alignment, avoiding draft-angle limits and costly machining.

A fixed angular offset between adjacent chain wheels compensates radial deflection in parallel link chains, reducing hoist load swing and vibration.

Separating the helical gear and clutch enables independent materials and processes, cutting NVH while preserving compact packaging.

Symmetric S-shaped tooth profiles help shearer loader headstock gears cross variable-pitch rack segments with lower stress and fewer gear jumps.

A preloaded pad, holder, and grease feed structure stabilizes the worm tip to suppress backlash noise and ease worm reducer assembly.

Press-formed split rims, arms, and a hub enable large pulley production while reducing casting pollution and improving worker safety.

Oriented fibers in a composite gear web tune compliance to improve tooth load distribution, cut machining demands, and reduce gear mass.

A compliant split gear uses preloaded backlash-control teeth and elastic load transfer to improve positional accuracy with less wear.

Movable and fixed guide teeth help logistics gears enter a rack at varying angles, avoiding axial obstruction during motion transitions.

Tapered tooth extension portions guide strain wave gear insertion, limiting molding misalignment and burr interference during assembly.

Optimized head height and tooth coverage improve differential bevel gear load distribution while limiting wear, friction, and noise.

Reduced-height edge teeth on a globoid worm preserve torque capacity while lowering flank pressure and preventing worm wheel damage.

Longer addendum and dedendum spur gears cut winch and hoist noise and vibration without helical gear thrust forces.

Inclined fitting surfaces and annular protrusions redirect molten resin during ultrasonic welding, preventing pulley joint burrs and extra finishing.

Angularly spaced axial protrusions trap air pockets on a gear wheel, cutting lubricant friction, power loss, and gearbox temperature rise.

A detachable polymeric drive rail absorbs pitch errors to cut gear noise and wear while allowing non-destructive replacement of worn parts.

Elastic biasing and holder preload stabilize the worm tip during reversal, cutting backlash-driven tooth rattling and abnormal noise.

A welded axial relief lets the gear web and meshing band decouple vibration, reducing resonance noise and limiting deformation.

Combining a metal ring gear with thermoplastic or powder metal spline gears improves misalignment tolerance, damping, and load handling.

Separate high- and low-pressure chambers in a CVT output assembly improve pulley hydraulic sealing while preventing lubricant contamination.

A holder and pad preload stabilizes the worm tip-end portion, reducing backlash rattling noise during steering direction changes.

A metal ring gear with thermoplastic or powder metal spline gears improves alignment, damping, and torque transfer under radial and axial loads.

Hydraulic fluid flow and piston travel sensing give direct tendon stress readout while reducing jack weight and pinch hazards.

A metal lattice and polymer core cut gear weight while preserving wear resistance and damping noise and vibration in operation.

Rolling contact between opposite-handed helical surfaces transmits positive rotary drive while minimizing sliding friction and wear.

Encoder-equipped rope pulleys replace wear-prone switches and use hoistway markers to calibrate precise elevator car position with lower maintenance.

Controlled elastomer deformation and curved-face pins let this coaxial gear absorb misalignment, cut stress concentration, and preserve torque transfer.

Offset first and second gear webs support the rim across its width to cut mesh misalignment, smooth meshing, and suppress NVH.

Curved-face pins and elastomeric spline engagement absorb misalignment and vibration while preserving torque transfer in gear shafts.

An auxiliary rack jig keeps pinion calibration and pre-tensioning intact while heavy utility racks are exchanged and transported safely.

Elastomer-lined curved pins let the gear assembly tilt in a controlled way, damping misalignment stress while preserving torque transfer.

Controlled tilting and damping from a curved-face pin and elastomeric interface compensate for gear misalignment while preserving torque transfer.

Curved crosspieces and strategic attachment-hole placement spread stress in a lighter rotation transmission disc across varying specifications.

A nonmetallic follower pinion and sensor track swing gear rotation more accurately despite vibration and power fluctuations, with retrofit-friendly installation.

Discrete roller assemblies replace sliding worm contact to enable low-wear linear translation with engagement and disengagement capability.

A softer grooved outer elastomer over a stiffer inner layer helps cable guide pulley linings resist cable attack while maintaining adhesion and reducing fatigue.

Differentiated tooth flank curvature and a curved bottom land reduce sharp-edge stress concentration while preserving gear strength and downsizing.

Biasing the lens driving member against motor shaft play keeps control motion accurate and optical power stable across temperature changes.

Arc-shaped damping members and brackets absorb sprocket-track impact, cutting noise while limiting ring movement and tooth wear.

Longer addendum and dedendum spur gears cut winch and hoist noise and vibration without helical thrust forces or costly nonstandard teeth.

Inclined frusto-conical sidewalls lighten a hollow transmission gear while limiting radial rotation, tooth wear, and noise.

Intersecting crosspieces and weight-reducing holes disperse stress in a rotation transmission disc, cutting mass while preserving strength.

A selective gear-coupling manual release lets surgeons retract instruments during power loss without damaging the drive train.

A labyrinthine dust lip seals the hub-crown interface while allowing relative rotation, cutting noise, debris ingress, and pulley wear.

A dual-ratio gear train delivers high starting torque, then lower-speed adjustment to cut motor size, power demand, and package space.

Controlled Cr-Mo-V steel composition and a 5 μm+ compound layer improve seizure resistance while preserving gear internal strength during nitriding.

A complementary fleet angle and sheave misalignment normalize tension in twisted flat belts, reducing sidewall abrasion and extending service life.

Stay width and axial thickening suppress hub radiated sound in a torsional damper without adding parts or increasing size.

An automatic solenoid clutch lets a portable winch stay free-spooling by default, then engage the drum on activation for remote recovery use.