Stools TRIZ Cases

Collars and enclosing rear fixing sections let the seat brace the frame, improving reception chair strength and outdoor stability.

Roller balls cut guide friction in a chair footrest frame, while magnets and a clamping groove keep the folded footrest stable.

A compact chair control cartridge uses riders, slots, and a tilt lock to synchronize seat raise and tilt while enabling secure positioning.

Integrated resistance elements and position sensors turn sitting into tracked exercise, improving posture awareness and user motivation.

A rack and pivot-gear lock lets the armrest switch between fixed and movable states for simple multi-direction position adjustment.

Angled oval tube legs create a conical support frame that cuts stacking distance and keeps stacked furniture aligned without rattling.

A compact three-axis furniture mechanism delivers spherical motion and selective axis locking to balance mobility, stability, and space limits.

A segmented plastic backrest with elastic tabs balances stable back support with movement adaptability while reducing weight.

A hinged headrest folds behind the backrest for storage while staying attached, avoiding loss and enabling quick chair reconfiguration.

A flexible back shell with ratchet height control and cable-driven lumbar motion simplifies chair adjustment while reducing linkage complexity.

Nested telescopic sections and interlocking features let a portable seat collapse for easy carrying while extending to stable, adjustable support.

A modular chair base, rotating seat, and pivoting tablet assembly improve collaboration, storage access, and stability without seat contact.

A double-layer elastic sock uses interior friction and a stabilizing layer to stay on furniture legs and prevent floor scratches without adhesives.

A low-profile platform covers the treadmill belt and secures swivel chairs, enabling safe seated desk use without moving the treadmill.

4-bar linkages align monitor and input tray motion with body axes, preserving eye distance and elbow reach from standing to reclining.

Inclined bearing surfaces replace a fixed rotation center to ease recline transitions, expand posture options, and reduce user effort.

A toothed shaft, looped base members, and locking parts enable stable furniture assembly and reconfiguration without tools or long setup time.

Angled leg panels, a rigid plate, and an extended cover make foldable seating compact to store while retaining comfort and load-bearing stability.

Mobile mould blocks create separate pouring surfaces to stop gel self-leveling and keep body support thickness uniform and material use lower.

A paired release and adjustment lever on parallel axes synchronizes seat backrest folding and inclination control while reducing mechanism complexity.

A pivoting pyramid frame replaces bulky stability balls, preserving core engagement while folding compactly for storage and avoiding deflation.

A coil and support spring layout keeps recliner cushions from sagging into leg-rest and back-recline mechanisms while maintaining firm support.

Capacitive sensors and a microcontroller are integrated into the chair control circuit to remove interference-prone cables and improve actuation reliability.

An infrared heating mat inside seat upholstery warms the seated person directly while keeping the cover temperature limited to 39°C.

A movable-pivot backrest uses nested linkages and gas struts to turn marine seating into a stable work surface with low repositioning effort.

Laterally flexible back posts and movable seat front support mesh tension, seat-depth adjustment, and pressure comfort for different users.

A laterally repositionable pivot axis and adjustable friction let dental stool armrests fit different practitioner sizes while easing entry and exit.

Sliding support legs rotate the chest and seat surfaces together to keep spinal support while preserving clear vision and vocalization.

Elastic controls beneath a laminated seat surface reshape the cover in use, improving support and comfort while keeping the frame stable.

Independent twisting support arms tension a mesh chair back to improve torsional flex, posture conformity, and long-term comfort.

A reversible bracket-and-actuator mechanism lets one chair assembly switch between headrest tilt and lumbar support for easier installation.

An operation rod and elastic element lock the axle block during folding, keeping the chair top board vertical and reducing wear.

A chair-mounted pocket stores a deployable poncho with hood and sleeves, adding weather protection without extra items or misplacement.

A four-point linkage turns user weight into adaptive reset force, making chair tilt and return comfortable across different body weights.

Targeted support pads under a mesh seat align with the ischial tuberosity to reduce pressure points, shear stress, and discomfort.

Flexible side wings between a rigid frame and back support let the chair back bend with the user while maintaining support and reducing sitting strain.

Mobile mould blocks create separate pouring surfaces to prevent gel self-leveling errors and deliver uniform, customizable body supports.

A button-actuated peg and spring let the armrest lock at set heights while the pad pivots to reduce friction and improve comfort.

Outward flanges, engaging grooves, and warpage-allowable seat edges prevent detachment while improving lateral buttock support and seating stability.

A reconfigurable tension system changes textile panel sag to deepen the seat pocket for restraint while also enabling comfort tuning and haptic cues.

An articulated two-segment chair tilt cuts seat-end lift during recline, reducing knee rise, heel rise, and back compression.

Pivoting seat elements switch between flat and saddle seating to improve comfort, versatility, and venous stasis prevention.

An adjustable air bladder and contoured foam seat add controlled instability to exercise machines, increasing core activation without sacrificing comfort.

Adjustable bearings on opposed inclined hub surfaces create smooth multi-posture recline while keeping seat motion compact and balanced.

A sliding detent and elastic return lock an adjustable armrest at discrete angles, preventing inadvertent rotation while preserving user comfort.

A switchable blocking device enables stepless one-way locking at any angle, giving furniture and vehicle seats precise adjustment without ratchet stops.

A shared spring between the backrest and seat adjusts tilt resistance for different user weights while reducing chair mechanism complexity and cost.

Telescopic supports and an anti-slip base let a stair-mounted chair sit securely across adjacent steps while keeping seat height adjustable.

Adjustable arms and a fastening strap stabilize armless chairs, helping elderly or disabled users sit down and stand up safely.