Lasting TRIZ Cases

See how a shoe care device uses exposed dehumidifying material with heater regeneration and dam

See how a portable sport kit box uses porous walls, a false bottom, and optional fan filtration

See how a closed-loop air circulation structure with regenerable dehumidifying material prevent

See how rotational locking parts replace interference fits to secure shoe supports on wind pipe

See how a second fan in the machine room dissipates compressor heat to prevent thermal damage a

See how an accessory port redirects dryer process air to power external tools for shoe drying a

See how a supporter-rail mechanism automatically opens and closes the supply port to prevent fo

See how horizontal shoe orientation prevents sand from entering exhaust ports and moisture from

See how compressible fabric bags replace rigid inserts to maintain shoe shape across sizes with

See how aluminum and other water-reactive materials produce heat and hydrogen gas to dry footwe

See how a laceless shoe upper uses elastic intermediate zones and stiff lateral-medial portions

See how a vertical heating chamber with zoned radiation lamps and movable carrier platform achi

Low-melting additives create heat-shapable shell zones that fit individual feet while preserving ski boot rigidity and appearance.

Warp knitting forms a tube-shaped vamp that is heat-shrunk on a shoe last to cut sewing labor, fabric waste, and sizing inconsistency.

Controlled steam heating with a stand and steaming bag lets users reshape customizable footwear at home to match foot contours more easily.

A modular heel assembly and moisture-absorbing body let one shoe tree fit varied shoe shapes while reducing creasing, odor, and over-pressure.

Interchangeable last sections adjust length and girth to cover more shoe sizes with fewer physical lasts and lower tooling cost.

Hot-pressing unfoamed colored shoe parts before supercritical foaming removes primer adhesion, cuts waste, and enables recyclable multicolor shoe bodies.

Preformed add-on parts let one standard shoe last match width, instep, and arch variations without complex adjustment mechanisms or surface steps.

Patterned polymer threads with a higher-melting core and bondable coating add localized support, stretch, and breathability without heavier upper layers.

Movable core sections and elastic shell engagement keep ski boot shell molds aligned under high pressure while enabling damage-free removal.

Starting from a shoe blank, subtractive cutting creates wearable, customizable shoe styles faster and with less inventory than additive production.

Stretchable upper zones are expanded and locked with rigid elements to cut size variants while improving shoe stability, comfort, and fit.

An inflatable toe bladder conforms to different shoe interiors to prevent creases and preserve shape with adjustable air pressure.

A perforated foot preform enables even thermoforming of knitted footwear uppers, cutting assembly steps, waste, and component damage.

Thermally fused knit layers replace the strobel to cut footwear weight and assembly steps while improving durability and abrasion resistance.

Heat-bonded polymer thread patterns add localized support, durability, and breathability to footwear uppers while reducing extra layers.