Passenger Cycles TRIZ Cases

A bicycle rear wheel suspension system varies shock rate throughout vertical travel to optimize traction and rider comfort.

A pivoting mount for the lower chain guide pulley dynamically adjusts position to manage drive train length variations.

A low profile rear derailleur uses a diagonal chain guide to reduce lateral width.

Embedding electric wires in the composite layup reduces assembly complexity and cost while concealing cables for improved aesthetic appearance.

A foldable child tricycle uses a four-bar linkage to stack components vertically.

A folding bicycle hinge shaft supports nested front, center, and rear hubs to enable compact pivoting of frame segments.

Quadrilateral frame with collapsible horizontal assemblies reduces vehicle footprint while maintaining structural integrity for motorized cycles.

Segmented frame beams connect via universal plates to adapt geometry for different riders, reducing storage space.

A derailleur-coupled cable mechanism adjusts shock absorber firmness to resolve pedaling efficiency versus terrain absorption trade-offs.

A vehicle frame includes an object mounting portion to support cargo during stand-up operation.

A bicycle rear suspension linkage uses a small eccentric mechanism to control chainstay lengthening rates during compression.

Powered lifting means raises cargo relative to rear wheels to balance weight distribution and reduce manual handling effort.

A bicycle seat adjusts between upright and recumbent positions using a directing rod mechanism.

A rear suspension module uses a tilt control mechanism to maintain ride height.

A biasing mechanism with an elastic member dynamically adjusts rear wheel contact state based on passenger load presence.