Fastenings TRIZ Cases

A vacuum chamber in footwear conforms to the foot using atmospheric pressure, eliminating bulky laces and reducing weight while maintaining fit tightness.

Segmented straps attach to a sole-mounted base plate, resolving heel slip in loose-fitting shoes without altering original shoe dimensions.

Segmented elastic design eliminates complex mechanisms, reducing weight and cost while ensuring reliable attachment.

A cable tightening system uses a heel spindle to tension the upper, creating a secure fit without protruding laces on the instep.

An eccentric adjustment device converts rotational movement into longitudinal tension to precisely control clamping force in ski boot closures.

Plastic buckles with metal inserts prevent corrosion while maintaining coupling strength.

Support members extend from an underfoot plate to pull a cradle toward the calcaneus, preventing forward foot sliding on uneven terrain.

A boot buckle uses a swivel lug and dual latching elements to secure the grip in a closed position.

Medial and lateral strap tensioning components cross at multiple locations to eliminate ankle pressure concentration while maintaining secure fit.

Tapered conical surfaces compensate for manufacturing tolerances to eliminate shell-cuff relative movement during skiing.

Segmented insole board structures enable easy cleat-nut installation while maintaining thin, lightweight profiles.

A ski boot buckle attachment device uses a secured pole interface to actuate buckles with minimal twisting.

Rolling motion actuation opens laced shoes hands-free, resolving the complexity trade-off for seniors while maintaining moisture seals.

An integrated dial assembly merges the pawl and spring to eliminate separate parts, reducing size and weight while simplifying manufacturing.

A ratcheted pawl ring engages a toothed ring to prevent unwinding, solving the loosening problem of traditional knots without requiring batteries or software.

An insert system with apertures and raised portions holds customizable inserts to resolve the trade-off between structural complexity and adaptability.

A modular snow travel system uses a releasable locking mechanism to attach traction cleats securely to footwear.

A flexible toe cap expands during impact to increase contact area, resolving the contradiction between structural simplicity and spin control.

A sports boot collar wedge deforms via pivots and notches, eliminating painful pressure points from rigid shell contact.

Segmented straps apply localized tension to prevent slippage caused by foot shape variations in heeled shoes.

Segmented sole design allows bowlers to adapt friction levels to varying lane conditions without multiple shoe pairs.

Flexible debris seal protects the cleat removal fitting from turf contamination, enabling easy access and preventing shoe damage during replacement.

Movable tensionable regions conform to foot contours, resolving the trade-off between structural simplicity and adaptive conformance.

Segmented rigid forefoot structure maintains consistent foot placement while knee-mounted resistance bands provide variable workout intensity.

Inclined walls in the wire joining groove guide wires into distinct directional zones, preventing interference during assembly and simplifying manufacturing.

Replacing rigid racks, a flexible cable and frusto-conical blocks adapt to footwear shapes while preventing ice formation between teeth.

Curved contact surfaces enable self-locking under load, eliminating tool requirements and reducing wear on the shoe surface.

An adjustable strap assembly with a fixed portion and variable looped through an adjustable double ring secures footwear.

Removable footwear attachment prevents debris accumulation in recesses by extracting the entire unit, eliminating complex retraction mechanisms.

Segmented straps limit external rotation and eversion, resolving inadequate stabilization in existing high ankle sprain braces.

Segmenting the closure into rigid and flexible portions resolves the performance comfort trade-off in ski boots.

Pivot-mounted reel tightening devices absorb sport impacts via oscillation, preventing damage and ensuring secure alignment.

Dual cables tension an elastic middle portion to balance walking comfort with skiing rigidity, resolving pressure regulation contradictions.

A rotary push-pull rope retractor uses a sliding control member to compress an elastic pawl and disengage a ratchet for easy tension adjustment.

Non-circular engagement pins rotate within ferrule slots to lock ornaments, solving the trade-off between easy interchangeability and secure retention.

A sports footwear closure device shifts to an open position where tensioning members engage supporting plates.

Segmented air bladder and latch prevent unintended removal during concrete pouring tasks.

Infant footwear uses expandable heel panels and a thin flexible sole to accommodate growing feet while maintaining proprioceptive feedback.

Tubular garment with heel slot secures footwear using elastic deformation, preventing slippage in high heels.

A shoe upper structure uses low rigidity regions to enable diagonal bending along the foot.

Elastomeric pads shield cleats and floors by conforming to shoe geometry, eliminating the need for separate indoor footwear.

Segmenting the tongue allows conversion from street to dance mode, resolving the trade-off between everyday comfort and specialized performance.

Segmented outer shells with hinges allow easy liner access while memory foam liners mold to foot shapes for customized fit.

A fastening device integrates a spool and driving unit to secure articles without passing through the base.

A rotating control disk drives claws that clamp spool portions, preventing lace loosening during movement without frequent manual re-tightening.

An annular array of alternating flexible and rigid traction elements traps grass for dynamic grip while rigid components bear load on short turf.

Digit-surrounding tabs on a transitioning upper expose claws, balancing protection from abrasion with natural claw usage.

A ratchet buckle incorporates a second reel member and crank mechanism to wind the strap end.

Stepped polymeric lugs resolve the contradiction between ice traction and paved comfort through composite materials.

An adjustable footwear system uses an extensor mechanism to expand the inner cavity volume for easy foot insertion.