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.

Segmented platform portions lower independently to ease user entry without compressing shock absorbers or increasing vehicle width.

An extendable frame adjusts wheel distance to create cargo space while maintaining a fixed user standing area.

Pivoting cams exert pressure on inner tube walls to prevent saddle post slippage under longitudinal forces.

A collapsible cargo bike frame pivots wheels transversely to overlap the cargo holder face for compact storage.

A rigid self-supporting frame element with a front and roof section supports tensioned film material for cargo bike containers.

Spring and damping elements absorb vertical shocks transmitted through the pivot mechanism, isolating vibrations from uneven surfaces.

A hinge-mounted damping element slows the closing movement of a motorcycle luggage case lid.

Pressure detector measures cargo position to dynamically adjust motor assist force, preventing instability and cargo falls during transport.

Double eccentric cam assemblies in bicycle frame pivot joints allow users to modify geometry for different riding styles without replacing components.

A mobile performance system integrates a drive mechanism, steering assembly, and performer platform to enable simultaneous travel and entertainment.

Steeply angled rear stays reduce wind resistance on bicycle frames, addressing drag complexity trade-offs.

A tricycle frame rolls relative to rear wheels via a helical gear assembly that transmits pedal power through the drivetrain.

A leaning cargo multi-wheeler uses a W-shaped first main rod in its parallelogram system to support flat-bottom containers.

A foldable human-powered vehicle with multiple seating positions and handle assemblies enables group travel without requiring balance skills.

Segmented frame modules with a rotatable crankset housing resolve the trade-off between performance geometry and manufacturing complexity.

Integrates split metal rings into a carbon fiber bottom bracket shell to eliminate sacrificial plastic cups and resolve wear resistance trade-offs.

Dual hinges pivot frame segments along parallel planes, reducing folded footprint while minimizing bending stress and folding time.

A three-wheeled velocipede uses a pivotally coupled front frame to accommodate a passenger alongside the driver.

Detachable cargo frames and steering adapters convert standard bicycles into multi-functional vehicles, eliminating the need for separate dedicated cargo bikes.

Integrating wheel hub motors into a bottom-mounted stiffening frame increases torsional rigidity without adding significant weight to the cargo bike structure.

An asymmetric steering axis arrangement reduces scrub radius and lateral tire sliding, resolving the trade-off between turn stability and steering force.

A three-wheeled cycle uses independent front suspension to absorb shocks on uneven ground.

A convertible bicycle frame uses a hinge mechanism to fold the rear wheel alongside the front portion, deploying an auxiliary wheel to support the carrier in stroller mode.

Segmented tri-wheel clusters rotate dynamically to navigate steps, resolving the bulk-versus-adaptability trade-off in personal transport.

Gimbal steering tilts front wheels to improve cornering stability while adding cargo capacity without increasing structural complexity.

A mechanical steering linkage synchronizes two bicycles to ride side-by-side.

Positioning a heavy battery near the front wheel increases contact load, preventing the wheel from lifting off the ground during bumps.

Horizontal slider adjustment resolves wheel alignment conflicts during belt installation, maintaining brake positioning without complex derailleurs.

A front cylinder part supports a steering transmission shaft below wheel axles to lower the center of gravity.

Central lifting placement eliminates lateral obstruction, reducing user effort while maintaining stability.

Segmented steering systems enable complex zig-zag maneuvers, resolving limited versatility in conventional cycles.

Segmented frame articulation resolves folding complexity while maintaining structural stability.

A front two-wheeled vehicle features a lean brake system with components fixed to the frame.

Central cargo positioning on a pivoting loading bed maintains horizontal stability during turns while resolving weight distribution trade-offs.

Segmenting the side wall into fixed and movable parts resolves the conflict between high transport volume and safe loading ease.