Cranes TRIZ Cases
- Reverse-Pyramid Hoist Cables for Offshore Crane Load Positioning
A reverse-pyramid arrangement of three hoist cables distributes load, limits swinging, and reduces boom bending in offshore crane operations.
- Portable Lifting Machine With Pivoting Mast for Doorway Transport
Pivoting the mast and rotating the base legs lets one user move a heavy-load lifting machine through standard doorways.
- Mobile Crane Collision Avoidance With Proximity Thresholds
Proximity-based activation limits collision avoidance to nearby mobile cranes, preserving work-site productivity during position updates.
- Telescopic Boom Coupling Pin With Manual Motor-Failure Release
When motor-driven release fails, a coaxial manual member retracts the spring-loaded pin so the telescopic boom can contract.
- Energy-Recovering Hydraulic Hook Fixing for Crane Transport
During crane transport, a hydraulic cylinder and accumulator capture hook-swing energy to align and fix the cable automatically, reducing manual effort and injury risk.
- Vocational Vehicle Crane Assembly With All-Electric Actuation
Onboard batteries and a power conditioner replace fossil-fuel and hydraulic crane drives while managing power to the boom.
- Integrated Fluid-Passage Boom for Drilling and Bolting Tools
External hoses constrain rig movement; an internal boom passage routes pressurized fluid for compact hydraulic actuation.
- Tower Crane Counterballast Adjustment Independent of Boom Angle
An independent mechanism shifts tower-crane counterballast without changing boom angle, helping minimize tower load across wind conditions.
- Telescoping Crane Boom With Threaded-Rod Actuation Under Load
A threaded rod converts rotation into controlled boom extension, enabling crane telescoping under load with precise load handling.
- Dismantlable Crane Boom Lattice Piece for Compact Transport
Learn how segmented crane-boom lattice pieces stay compact for transport, then assemble into larger, stiffer structures.