Portable Lifting TRIZ Cases

Viscoelastic buffer members absorb stress to maintain rack guide alignment, preventing uneven friction during steering reversals.

Offset recesses in plastic gear connecting parts maximize material distribution to resolve void formation and surface indentations during injection molding.

A self-locking pulley integrates a cam and spring to secure rope movement in one direction.

A skiving mechanism rotates a workpiece while feeding a pinion cutter with distinct involute, addendum, and dedendum regions to generate gear teeth.

Standby upper mold position prevents cracking during cylindrical die removal, maintaining manufacturing efficiency.

Segmented ribs align ventilation gaps with thin profiles while thick ribs maintain structural integrity, resolving roundness and burr formation trade-offs.

Internal toothing and reinforcing strips strengthen a plastic gear wheel, preventing tooth breakage under high meshing loads.

Dual-type strain wave gearing employs a flexible gear with distinct external teeth to resolve suboptimal meshing and uneven bearing loads.

An integrated bayonet lock secures the secondary gear axially, eliminating external circlips and reducing device complexity.

A compact cable guiding device uses rotatable and movable rollers to track longitudinal cable movement during winding operations.

A hoist control unit manages load positions via encoder feedback to maintain stability during operation.

Replacing belleville springs with a large-stroke coil spring reduces fabrication errors and stabilizes slip load in compact hoist designs.

A V-sling master linking device incorporates a transverse hook positioning adapter to orient the winch hook parallel to the vehicle frame.

An elastomeric compensating part absorbs torsional vibrations in spur gears, reducing circumferential backlash while maintaining meshing engagement.

A radial diaphragm spring clutch uses a thrust bearing to bias movable sheaves along a cam axis.

Vertically stacked sheave pairs enable single-failure self-leveling, reducing trolley spread and weight compared to four-rope configurations.

A chain block wheel cover uses wrap-around portions around fixation holes to enhance structural strength without adding separate reinforcement members.

A drive sprocket uses detachable polyurethane segments on a steel ring to reduce manufacturing costs and simplify maintenance.

A metal hub blank with radial tabs accepts an injection-molded polymeric ring to form a worm gear assembly.

A CVT control device prohibits belt slippage detection during vehicle stopped states to prevent erroneous readings from primary pulley vibration.

Movable legs and safety catches adapt to seismic ground motion while preventing single failure accidents.

Elastomeric gear teeth absorb mechanical backlash via elastic protrusions, eliminating gear rattle and vibration without compromising structural strength.