Portable Lifting TRIZ Cases

A unitary hoist uses a single crank arm to control multiple tension lines via independent ratchet mechanisms.

A sliding hoist platform with a winch and sheave mechanism transfers loads between building floors.

Inclined contact surfaces on hub stops allow spring ends to slide, distributing cantilever loads across the root area to prevent local overloading.

A toothed pulley uses a nylon 6T and 11 copolymer matrix with flat glass fibers to resolve weight reduction versus dimensional stability trade-offs.

Relocating axial bearing points radially inward eliminates intermediate rings, reducing weight while maintaining strength through integral injection molding.

Nitrided gear surface layer with tempered martensite and retained austenite resists seizing in high slippage electric motor environments.

Locking bars and stabilizing feet secure sheave housings during reeving, preventing tipping and reducing manual handling effort.

A controlling spring stabilizes the rotary shaft to reduce small swing and case thickness in meter apparatuses.

An internal laser peening system restores compressive residual stresses on rotating gear teeth, eliminating the need for disassembly and extending gear life.

Detachable rim elements on a sprocket wheel reduce repair difficulty by allowing individual segment replacement without removing the transmission mechanism.

External loading disk rotates the sheave to spool rope quickly, eliminating time-consuming partial rotations required by conventional ratcheting pulleys.

Optimizing the chemical composition of a nitrided steel member reduces strain variation while maintaining pitting resistance and bending fatigue strength.

Friction plunge welding fuses steel and aluminum gear parts, eliminating heavy solid steel cores and reducing manufacturing energy consumption.

A mechanical lever system locks lifeboat blocks using their own rising movement without external power sources.

Segmented covering parts join via retaining strips to secure the pulley block hood, eliminating hazardous cable re-reeving during maintenance.

A chain block uses a nested hollow shaft and drive arrangement to reduce overall size while maintaining structural integrity.

Centrifugal locking element blocks cable drum rotation, preventing abrupt acceleration and jolts when partial load detaches.

Radial clutch engagement stabilizes speed switching in planetary transmissions, eliminating axial displacement resistance and neutral state instability.

Positioning pin and re-drilling correct angular deviations to maintain zero radial clearance in epicyclic reduction gears.

Non-circular toothed profiles in the reduction unit vary the gear ratio to match motor output against fluctuating load, eliminating peak power demands.

Segmenting the drive gear into separate inner and outer members preserves surface treatment accuracy while reducing weight.

Tapered faces on drive elements provide radial centering and support, reducing deformation and mass while maintaining connection strength.

Offset injection nozzles trap solidified material in cavities, eliminating re-machining and reducing cycle time.

A quick release hoist system uses a dual exhaust path to accelerate air removal from the lifting device.

Varying arcuate spacings between pulley arms eliminates rotational symmetry, reducing operating noise peaks in belt drive systems.

Mechanical measurement devices replace optical cameras to detect rope path and height difference, ensuring reliable reeving determination in harsh environments.

Segmented gear bearing components simplify planetary gearing assembly by enabling independent phase adjustment of rollers and gears.

Segmented sheave assemblies reduce manufacturing complexity while maintaining load movement reliability in remote Tyrolean traverse installations.

Axial toothing on a first gear wheel engages an electric motor pinion, compensating for injection molding tolerances to maintain transmission efficiency.

A tower hoist clamp bracket secures a pivoting beam to telecommunication towers, eliminating complex rigging plans and engineering sign-offs.

Carburizing steel followed by oil quenching creates a dual hardness microstructure, reducing distortion while maintaining fatigue strength.

Mounting a servicing crane on the hub enables direct appliance handling, bypassing the blocked nacelle hatch to maintain safe escape routes.

An outside spring guide prevents compression coil spring buckling in a CVT secondary sheave, reducing vibration and noise at high engine rpm.

A moisture-proof sleeve block shields a hoist motor using a five-sided casing and angled chain routing to keep internal components dry.

A tensioning assembly uses a lateral release mechanism to disengage the pawl from the ratchet wheel for one-handed operation.

Merging power and travel modules reduces device complexity and production costs.

An integrated hoist system automatically deploys equipment while controlling suspension cable tension.

Segmented support shaft with strain deformation portion measures shear load via attached sensor.

A pulley ratchet mechanism uses pivoting gripping elements to control rope direction and enable one-way locking.

A wiper motor lever extension uses a spherical segment fastening region to pivot within the bearing mount and reduce power consumption.

Sensor detection member triggers actuator stop command to resolve inaccurate height estimation risks in theatre lifting applications.

Angled chain wheel pockets with variable depth accommodate diverse link sizes while enhancing structural integrity and reducing component weight.

An intermediary sealing member blocks foreign substances from penetrating the electric motor, preventing component damage and maintaining output.

Integrated pulley housings reduce structural complexity while maintaining high mechanical advantage for efficient force amplification.

Segmented base plate with upturned edges and primary anchor pivot point enables efficient pulling of heavy loads in tight crawl spaces.

A spring-loaded coupling shaft requires manual displacement to release, enabling rapid detachment when unloaded.

A clamp device with eyelets and locking mechanisms secures equipment to chains for efficient hoisting operations.

A sintered composite bottom member combines dutch-woven and plain-woven stainless steel layers to enhance mechanical strength in resin gear manufacturing.