Reels TRIZ Cases

A dual-bearing reel spool braking device uses an asymmetric mounting guide to orient the brake shoe on a swinging shaft.

An internal projection guides the switching member axially inside the handle shaft, preventing inclination during gear engagement.

A wireless spooling machine uses RF signaling to control motor-driven gear engagement for automated wire pulling.

A fishing reel handle nut uses a selective stopper to prevent loosening during operation.

Axial pins transmit drag adjustments from a star wheel to a friction stack, enabling incremental force reduction under load without releasing line tension.

Plastic deformation of the spool body protruding portion holds the ring member, eliminating closed spaces that trap seawater and cause corrosion.

A magnetic damping mechanism uses a rocker arm and spring to adjust magnet position relative to a rotating disc.

A spinning reel gear disc uses a threaded drive shaft coupling to secure the handle assembly firmly within the housing structure.

Lock lever conceals frame protrusion to prevent unintentional palm side cover release during gripping.

Waveform regulating part on drive gear teeth creates irregular vibration patterns to replace monotonous feedback in fishing reels.

Segmented gaps in the spool shaft insertion region retain adhesive while maintaining radial positioning precision of the spool body.

Segmenting components into a nested sphere reduces volume while maintaining storage capacity, resolving portability constraints.