Carriage/Perambulator With Multiple Axes TRIZ Cases

A folding joint uses a locking member with variable axial engagement depth to pivot holder bodies.

A foldable hub pinion uses positive profile shift to increase gear tooth strength and torque transmission capacity.

Symmetric crossbars with piano hinges allow the trailer to fold while keeping wheels in place, eliminating manual latch locks.

Pivotable shell anchors and a cable controller enable an infant carrier to mount on vehicle bases or stroller frames.

Segmented wheels and flexible walls reduce storage volume while maintaining mobility for portable coolers.

A wagon stroller uses a floating hub with a slidable release grip to rotate frame tubes into a collapsed position.

Actuation element rotates posts and handle tube via kinematic connections, eliminating cumbersome manual post manipulation.

A baby stroller suspension unit uses a movable rod to adjust seat height for easier access.

Relocating the release mechanism under the baby carrier prevents accidental folding while the occupant remains inside.

A foldable stroller frame uses a locking component to secure the rear foot pivot, enabling compact folding and stable operation.

A stroller frame uses a single control handle to actuate a mechanical linkage that retracts all three wheels simultaneously.

Universal adapter resolves incompatibility between seat assemblies and diverse cart frames through segmented locking mechanisms.

Rotating upper and lower body portions with a spring-biased gear linkage reduce occupied space while managing mechanism complexity.