Load-Engaging Elements TRIZ Cases

A crane control unit calculates derricking angle changes from load weight variations to raise the boom and compensate for deflection.

A blade gripping tool uses an automatic sling handover mechanism to convey connection means along a predefined path.

A weight distribution hoisting frame offsets the lift position of heavy loads to enable multiple cranes to share the lifting force.

A crane fly jib integrates a rotation mechanism and variable length beam for precise load positioning.

A clamping device engages the internal flange of a tubular member to enable vertical hoisting operations.

A spring-mass model compensates static and dynamic rope forces for precise load mass determination.

Inwardly biased circumferential ribs on a multiple container carrier prevent label obscuration and improve carrying comfort.

A movable image sensor protrudes from a hoisting frame periphery to capture clear position data.

Telescopic beams and independent cable hooks prevent tube bundle ends from bending under weight, ensuring balanced lifting without central-only grip damage.

A crane control system autonomously moves positioners to predefined target positions using stored clearance and target data.

A lifting ring stirrup pivots around a perpendicular axis to lie flat against the mold surface.

A portable maneuvering unit mounts to a stand near the operator seat for ergonomic control.

A hollow braided sling design widens under load to increase contact area and reduce pressure on fragile items.

An elastic cord deploys folding fingers on a recovery grapple to securely latch onto submerged vehicle spokes, eliminating dangerous manual positioning.

Radio modules exchange signals to determine load hook position, maintaining accuracy in fog and smoke.

A crane counterweight positioning system adjusts weight placement along the boom to maintain optimal lifting capacity.

Remote rotation control eliminates operator proximity hazards and tag line entanglement risks while providing selective movement authority over heavy loads.

An irreversible angle gear and friction clutch absorb collision energy in telescopic beams, protecting drive durability without adding braking complexity.

A control-command system determines preferred load curves from pre-calculated options based on selected crane configuration parameters.

A crane adjusts its boom derricking angle to suppress suspended load swing during platform rotation.

A drivable articulator coupling links primary clamping jaws and secondary pads to an attachment body.

A modular crane damping arrangement uses a floating guide tube structure to reduce load oscillation during high-speed lifting operations.

Offsetting the locking lever center of mass creates a counterbalancing moment that resists dynamic impact forces and prevents unintended unlocking.

A mandrel gripper inserts into cable drum bores to secure loads via movable jaws.

A rotatable hoist hook block uses a vertically guided pressure plate to pivot locking means via an actuating arm for automatic engagement.

Inertia drive flywheel generates torque for precise load rotation, preventing hoist rope twisting.

Anchoring device with an expandable element secures building components within recesses.

A transportable lift system uses adjustable supports and a line pay-out device to raise materials from ground level.

An angular steering lever with defined contact surfaces prevents undefined positions in heavy-load triggering devices under extreme conditions.

A bifurcated pivot joint link member uses hollow cylindrical bushes and bearing bushes to establish a pivoting interconnection between a hydraulic crane arm and a rotator.

Bridging connector links guide and control wires to stabilize heavy crane loads during windy wind turbine assembly operations.

A locking lever rests against the hook tip to hold the safety latch open, eliminating manual effort and hand injury risks during load release.

Spacing assembly positions the motor away from impact zones while transmitting torque to the flipper hinge.

A load gripper uses a seesaw lever mechanism to convert lateral crane forces into axial motion for wedge retraction.

A cam hook truss lift system enables controlled crane lifting of heavy roof trusses.

A 2D camera attached to container gear captures downward video images of defined surface markings for computing unit processing.

Adjustable stop levers create a variable passage for the crane rope, preventing premature shutdown caused by dirt or incorrect cable usage.

A balanced cantilevered feeding apparatus positions loads through building openings using spaced hoisting assemblies and a fly beam.

A convex housing opening distributes lifting loads across a larger surface area, preventing chain buckling and ensuring safe handling of heavy materials.

Thrust fans at beam ends enable remote wireless orientation control, replacing manual guidance to reduce safety risks and improve positioning speed.

Adjustable connecting pieces and chain assemblies align load centroids with hoisting points, eliminating multiple specialized mechanisms.

A hanging beam uses motor-driven screw rods to slide displacement hangers along parallel main beams for precise positioning.

A multifunction control module manages crane motors via electronic units and radio data packets.

A grapple force limiting device rotates tines to relieve hydraulic pressure, protecting prime mover arms from damage during dense load handling.

A boom-mounted counterweight slides along the structure to balance varying loads, enabling operation in confined spaces without manual adjustment.

A rotating hoist ring incorporates a temporary locking tool that connects the body and fastening member during installation.

A rotational movement limiter on the articulated coupler prevents handle bending and unintentional disconnection during concrete component lifting.

A hydraulic lifting truss uses grapple hooks to attach and lift prefabricated concrete panels.

Dual pivot axes enable independent pitching and rolling of a suspended load frame, resolving placement constraints for modular units.

Circulating fluid in a closed loop pipe imparts rotational force to orient suspended loads, eliminating high-speed rotating parts and reducing mechanical wear.