Stools TRIZ Cases

Weight and stored height data drive automatic cushion tilting, replacing cumbersome manual adjustment for different users.

See how rotational driving members and a pulling rod reduce user effort in chair back tilting b

See how a rotary electrical connector mounted on the swivel base prevents power cord entangleme

See how a pivoting sled and movable cover maintain parallel alignment with the backrest membran

Moveable side plates separate lumbar support and head tilt functions, simplifying installation across chair backs with different widths and heights.

See how dual actuators and coordinated seat-backrest movement enable a wall hugger recliner to

See how a cable-driven tensioning mechanism replaces discrete locking orifices to enable contin

Radially layered elastic members add reaction force by restricting outer-cylinder rotation, avoiding tight axial-accuracy requirements.

See how a convex backrest body applies focal pressure to the spinal region rather than broad pl

See how integral side ribs, thinned extensions, and elongated openings let a chair backrest fle

See how a spherical guide surface and slide guide distribute tilting loads, reduce elastic memb

See how flexible anti-ballistic fabric layers wrapped around tubular chair frames resolve the c

Multiple sliders engage ratchet teeth at different phases to provide precise, stepless seat adjustment without excessive mechanism complexity.

A deformable ring base increases restoring force and floor contact as load and tilt rise, supporting stable seating for different users.

See how integral snap rivets and press-fit fasteners reduce torsion activator installation to a

See how a pin-releaser mechanism locks a fold-down chair tablet in horizontal position to preve

See how pivoting ganging arms retract beneath the seat when not in use, preventing damage and i

See how a spring-loaded bezel assembly secures personal video monitors to seat backs, eliminati

See how a shielding portion closes gaps between operation and adjacent members during posture c

See how an arc-guided pin directly fastened to an elastic element enables wide oscillation adju

See how a variable-radius cam track and centered actuator eliminate uneven headrest motion and

An inflatable shell and air valve adjust the cushion angle to redistribute thigh weight, reduce pelvic pressure, and ease lower back strain.

See how a gearless angle-adjuster uses fan-shaped blocks and arched stops to enable infinite, n

Elastic bending elements and spaced support strips follow individual body curves, while a pivoting plate adds rear-waist support.

See how a locker seat assembly integrates hinged seatbacks and nested storage to balance seatin

A rollable memory foam seat-and-back cushion uses securing and carrying straps to combine prolonged-sitting support with portability.

See how a push lock mechanism with elastic retainer clips enables a single cupholder design to

Thicker and thinner foam regions stabilize a sleeping child’s head in a vehicle seat while limiting neck strain during travel.

A leaf spring changes its effective length with user weight, automatically varying chair adjustment force for easier setup and balanced comfort.

See how a ratchet-and-gear drive mechanism with one-way bearings enables both motorized and man

See how a hand-lever mechanism with worm drives moves a footrest towards and away from the chai

See how articulating arm assemblies enable independent legrest movement while maintaining const

See how a cylindrical engagement fixture enables quick interchange between cup holders and tabl

See how adjustable leaf springs and repositionable supports enable precise body weight compensa

See how a two-section footrest with independent pivot and linear extension resolves restricted

See how segmented support arms replace rigid peripheral frames to provide torsional flexibility

See how a force-responsive connector block enables tool-free cable connection during chair asse

See how a multi-link mechanism uses dynamic geometry and dimensional movement to enable footres

Paired cushions attach to a seat back at spaced locations, using tactile feedback to support spinal alignment during prolonged sitting.

See how a thermoelectric control unit uses Peltier cooling modules and dual heat exchangers to

See how a linear guide constrains base plate movement to vertical displacement only, enabling t

See how a knob-actuated slope mechanism adjusts lumbar support distance to overcome elastic fat

See how a two-axis snap-fit connector replaces multi-screw armrest assembly, enabling fast disa

See how a single-drive-link mechanism with nested linkage components and mechanical feedback en

See how a segmented roof structure and multi-function base unit resolve the weight-stability co

See how curved support arms and tensioned fabric replace rigid frames to enable lateral flexibi

See how a bushing-based pivot design decouples seat and work surface rotation, enabling easy as

See how a transparent enclosure with swiveling clamp shields infants from collision projectiles

See how a U-shaped backrest support with spaced pivot joints enables lateral tilting mobility a

A pivoting arm keeps barber implements level as the chair reclines, while adjustable connectors fit varied chair designs.