Automatic Winding TRIZ Cases

A concentric oscillating weight and central barrel remove reduction gears, enabling slimmer self-winding watches with fast one-way winding.

Thermoplastic intermediate-layer bonding joins reinforced composite watch parts to expand color and texture options while reducing machining and polishing.

A switchable ratchet pawl engages to hold mainspring tension and disengages to reduce resistive torque in thin self-winding watches.

A segmented oscillating mass with toothed ring and bearing ring simplifies self-winding watch assembly, avoids damage, and supports stronger winding.

A dual-surface outer coil stores grease in a central reservoir, sustaining mainspring slip while reducing drum wall wear and maintenance.

Uneven blom studs create glue reservoirs that secure the heavy sector, resist shocks, and preserve toothed bow geometry in self-winding watches.

Flat-sided studs create glue reservoirs that secure the heavy sector without deforming the drive ring, improving shock resistance in self-winding watches.

This case embeds a decorative element in a two-part oscillating winding mass to preserve automatic winding and movement visibility.

A ball bearing links a rotatable decorative element to the main oscillating mass for dynamic visual appeal.

Segmenting the winding function into two independent freewheel clutches reduces braking angles and stress, enhancing automatic watch movement longevity.

A variable geometry oscillating weight uses a differential mechanism to adjust its center of gravity position.

A watch transmission device employs a friction brake to oppose oscillating mass rotation, reducing parasitic noise and premature wear in automaton chains.

A timepiece movement uses a wheel train bearing with release portions to disengage the pawl lever from the transmission wheel.

An inertial clutch mechanism resolves ratchet ambiguity to enable silent, high-amplitude vibrations in self-winding timepiece movements.

A decentralized rolling bearing design replaces plain bearings in automatic winding mechanisms to eliminate lubrication needs.

A moiré effect winding assembly uses a perforated mass and relief pattern to create dynamic visual animation in automatic timepieces.

Segmenting the decorative disc from the oscillating weight via a non-circular stem reduces production complexity while enabling easy removal.

Rotatable display means and complementary display means rotate synchronously relative to an oscillating weight.

A pneumatic winding mechanism uses two hermetic enclosures with distinct metal alloy mixtures to convert temperature variations into mechanical energy.

A flying bridge supports functional elements via a kinematic gear train within a timepiece movement.