Friction-Wheel Launchers TRIZ Cases

Concave rubber launch wheels increase ball contact and grip, preventing saliva-related jams while keeping launch distance stable.

Integrated circumferential and pitching gyroscope sensors let body posture replace multiple toy controllers, simplifying operation while keeping precise action control.

Gesture sensing and motor-driven wheels let a wearable string shooter launch and retrieve a looped string without manual reloading.

Gesture sensing and wheel-driven string retrieval remove direct hand actuation and manual reloading in a wearable looped-string launcher.

A worm-and-turbine drive splits motor power across two eject gears, helping a planar dispenser eject lightweight papers and coupons smoothly.

Radiating fibers increase air friction around a propelled string, creating lift while guide slots simplify loading and removal.

A self-loading football throwing machine uses a collector chute and orienting belt to launch balls automatically.

A tilt-adjustable mounting hub pivots the feeder elbow to maintain gravity-driven projectile advancement during launch tube rotation.

A motor-driven ball feeder assembly automatically transports baseballs from a cylindrical bucket to a pitching machine via a rotatable drum mechanism.

A movable ball launcher detects player position to adjust launch direction, eliminating manual reconfiguration for continuous sports training.

Rotatable threaded shafts adjust vertical and lateral placement to resolve accuracy versus complexity trade-offs.

A portable golf ball launcher delivers balls at preselected angles, speeds, and spin rates.

Sensor-triggered rotation of the launch channel prevents collisions with people or objects in the path.

A golf ball launcher uses compressed air and belt drive to propel balls at high speeds.

Segmented wheel sections and variable motors resolve the trade-off between device simplicity and versatile pitch type simulation.

A throwing machine controller sets preprogrammed shot distribution patterns to simulate realistic training scenarios.

Rotatable drum and clip magazine feeds soft darts using a constant force spring, preventing jams without motors.

Adjustable rear leg sets chute angle to control ball trajectory while variable speed motors maintain consistent launch velocity across repeated pitches.

A projectile expelling apparatus uses a fixed channel to maintain a constant entry point while a rotating housing adjusts the trajectory.

A pivoting safety arm obstructs the launching section to block non-standard darts from entering the mechanism.

Rotating finger projections orient shuttlecocks parallel to ejecting wheels, reducing velocity loss from air pressure during launch.

Dual motor cam linkages provide adjustable vertical trajectories without complex electronic controls.

Driven wheels with radial fan blades draw air through vents to cool components, while periodic UV light sources illuminate the string in dark environments.

A single motor drives toy launcher flywheels through a clutch structure to synchronize projectile feeding and reduce mechanism mass.