Domestic Applications TRIZ Cases

An asymmetrical journal groove and matching guide bridge block wrong refill insertion, prevent jamming, and keep paper rolls dispensing correctly.

See how automated fabric pressing and rubbing replaces heated air to absorb moisture from hands

See how sensor-piston disengagement automatically drops stub rolls when depleted, freeing space

See how a pipe-barrel mechanism generates negative pressure in a suction cup to enable easy wal

See how interchangeable extender adapters enable a single toilet roll holder to accommodate sta

See how blended cotton-polyester plied yarns in terry towels resolve the durability-comfort con

See how a spring-biased rod and friction hub control coreless tissue roll dispensing to reduce

See how a suction-based air-flow apparatus inverts conventional blower design to contain germ-l

See how side-mounted fan-shaped nozzles enable users to view hand drying status while preventin

Partly overlapping inner and outer threading openings simplify paper web refilling while preserving a small protected dispensing opening.

See how an integrated motor-gear-roller assembly with grounding and vibration damping reduces n

See how combined infrared and acceleration sensors detect user changes in real time, activating

See how a slidable drawer cartridge system with spring-loaded compression rollers minimizes moi

Applying floral or fruity fragrance to the toilet paper tube at 0.4-6 mass% suppresses fecal odor without weakening tube strength.

A guided double-plate spring assembly keeps tissues at the pickup opening while preventing plate jump-out, jamming, and difficult cleaning.

See how a cutting roller with a gapped edge and integrated protrusion deflects the strip away f

See how a sensor-activated liquid nozzle partially wets toilet paper to improve anal hygiene wi

See how a drop assembly automatically transitions the reserve roll into dispensing position aft

See how separate power sources for motor and control, plus generator-mode charging during manua

See how a lever arrangement and biasing element automatically prevent door movement until the f

A detachable refillable pod adds quick wipe access and leak-proof sanitizer storage to a phone case without sacrificing secure attachment.

See how a linear-slide actuator with freewheel coupling replaces pivoting mechanisms to reduce

See how a flexible blade with teeth projecting through slots enables manual tearing of resistan

See how retractable cord-and-clip modules with spring-loaded reels automatically return towels

See how a portable wipe warmer uses a dense sponge intermediary and controlled heating (95°F-10

See how a serpentine paper path with curved projections prevents ligature formation in institut

See how staggered protrusion elements on dual rollers create an undulating passage to separate

See how a ramp-and-biasing design dispenses exactly two folded napkins per pull without motors,

See how a radar sensor emits electromagnetic waves to measure boundary surface distance, enabli

See how a radial offset between roll support and sensing element improves depletion detection a

See how an inclined support plane reduces device weight by avoiding full user load while angled

See how an elastic-driven cover plate clamps roll paper to the hanging rod, enabling one-handed

Magnetic clip jaws and a torsion spring keep towels off the floor, reducing wrinkling and dampness while staying easy to hang and remove.

A drawer, oblique platen, and arcuate aperture stabilize interfolded paper stacks for controlled dispensing and cleaner loading.

See how separating dry substrate from fluid reservoir and wetting paper towels only at dispensi

See how a hub-and-insert registration system restricts dispensers to authorized web material ro

See how hingedly affixed magnetic fastener plates and a flexible strap system secure towels on

Motion-activated UV sanitization added to a hand dryer dries hands first, then targets germs while collecting expelled liquid.

A conical expander spreads a slotted roll holder inside the core, stopping roll rotation without direct paper pressure or fixed roll lengths.

See how integrating a motor within the feed roller reduces noise below 53 dB, lowers manufactur

See how a long-handled towel device with U-shaped towel support enables elderly and mobility-li

See how a movable carrier with biased pins and sequential positioning controls access to backup

See how a retractable needle and compressed air spraying replace pump-based systems to eliminat

An asymmetric curved rib and pin-fit bushing block incompatible rolls, reducing dispenser damage, pull force, and maintenance costs.

See how a pocket-forming toilet paper body prevents finger contamination during wiping while re

See how a consolidated towel holder merges paper and fabric towel support with a weighted cap t

See how an end-piece coupling replaces snap-fit locking formations in dispensing drums to simpl

See how a pneumatic pipe-barrel mechanism generates negative pressure in a suction disc, enabli

See how a wireless, battery-powered body dryer uses adjustable hot-air ports, preheating, and m