Frictional Rollers Based Transmission TRIZ Cases

Radial bearing grooves let drive rollers be packed densely and fitted more easily while keeping roller shafts stable in the wheel drive unit.

An annular inner-outer frame fits roller supports without bolts, cutting parts and assembly time while preserving wheel driving force transmission.

Sharp-tipped indenters on a frustoconical metal roller improve wet torque transfer while reducing tire wear and easing roller positioning.

Distributed indenting elements on a frustoconical metal roller improve wet torque transfer, reduce tire wear, and relax positioning precision.

Radially opening bearing grooves let friction drive rollers be packed densely and fitted more easily while maintaining stable support.

An articulated support places the motor below the rear wheel diameter to resolve traction force limitations while maintaining bicycle adaptability.

Vertical component arrangement and active cooling resolve the trade-off between compact assembly and thermal management in inverted pendulum vehicles.

Rear-mounted seat with inclined backrest allows forward-facing entry, resolving mounting inconvenience without increasing structural complexity.

Rim-mounted drive cogs engage wheel bearings to boost torque for steep inclines while reducing system complexity and wear.

A control processing unit adjusts travel velocity commands based on rider inputs to facilitate easier operation of an inverted pendulum vehicle.

A direct drive transmission uses a longitudinally movable friction element to shift engagement zones on the drive shaft.

Segmented motorized propulsion allows temporary attachment to non-motorized vehicles, preserving trick usability without permanent modification.