Hand Carts With One Axis TRIZ Cases

A convertible gear cart uses a hitch adapter to enable stable vehicle support and manual propulsion modes.

Arcuate-shaped mounting plates and bolts secure buckets to a cart frame, resolving the trade-off between manufacturing simplicity and attachment reliability.

A swivel support device with caster assemblies attaches to wheelbarrow legs.

A compact roll-off trailer pivots a tilt frame via a single hydraulic cylinder, resolving the trade-off between maneuverability and load capacity.

Forward-extending arm pairs create longitudinal slots that orient slabs upright, resolving visibility and maneuverability bottlenecks during transport.

A movable pivot axis shifts along a tray guide to reduce tipping force and prevent undesired backward tipping while maintaining transport stability.

Telescopic handle mechanisms allow users to select optimal heights, reducing back strain while maintaining structural stability.

Segmented removable compartments secure loads within the receptacle to prevent spillage while navigating uneven terrain or stairs.

A pivotable transport apparatus aligns heavy glass sheets with finishing tables using a rotating base mechanism.

Honeycomb toe plates and large wheels support 160 pounds while navigating uneven surfaces.

Scissor-bar and telescoping pole assemblies compress the frame volume while maintaining structural strength for compact storage.

A dual-function electric stair-climbing vehicle enables forward riding via a bicycle-like saddle and worm gear reducer.