Stools TRIZ Cases

A low rear-parallel shaft with lateral gears and guide rails retracts the footrest compactly without interfering with seat springs.

Front and rear torsion bars with linked dampers absorb small vibrations elastically and larger load fluctuations with added damping.

A cam and spring follower simplify chair backrest force adjustment, cutting assembly complexity and enabling user-specific restoring force settings.

A clip stopper, grooves, and threaded stud let the armrest slide and lock at set heights with lower complexity, cost, and failure risk.

A shared actuator and bracket assembly lets one reversible chair mechanism provide either headrest tilt or lumbar support with easier installation.

A motor-linkage chair mechanism coordinates recline with ottoman and footrest extension to add seating positions without excessive complexity.

A spring-loaded slider and interlock mechanism enables vertical and fore-aft lumbar adjustment while preventing slippage and misalignment.

A scissor-frame desk with pivoting seat and desktop improves posture adjustment while folding compactly for transport and storage.

A segmented edge structure uses directional moment of inertia to support suspension fabric while flexing under direct sitting loads for softer comfort.

A crank-and-rod preload mechanism shifts spring force application to match user weight and deliver precise, comfortable backrest tilt resistance.

A motor-driven telescopic recliner mechanism replaces bulky metal linkages to reduce wear, pinch hazards, and upholstery constraints.

By supporting the pelvis at the PSIS and iliac crests, this seating approach keeps a 93°-97° hip angle while preserving spinal mobility.

A pushbutton height-adjusting assembly lets dental stool seat backs and torso bars adapt quickly to different users without complex locking steps.

A moulded body with secure base-frame fixing lets a child seat monitor or display face the child even in rear-facing seat setups.

A dual-sided furniture pad frame uses two floor contact layers to match different surfaces and extend pad life when one side wears out.

A rear-mounted wheel holder lets a chairlift carry multiple bicycles with faster loading, easier passenger access, and simpler unloading.

Notched flex zones in a flexible chair back enable smooth reclining with built-in resistance, avoiding complex pivots, linkages, and springs.

A nested damping sleeve and replaceable sliding surface absorb vibration noise from moving furniture while staying stable on different floors.

Rear seat loading tensions a spring through a transverse connector, using the sitter's full weight to bias the backrest without manual pretension adjustment.

Leg-mounted shelves, drawers, and hooks place infant-care items under the chair seat, cutting retrieval time without obstructing nearby space.

A powered scissor linkage repositions the lumbar pad as the seatback reclines, maintaining adjustable support and reducing manual readjustment.

Angled Z-shaped frame members let a cantilever chair rock laterally while stacking compactly with stable overlap and more legroom.

A trough-shaped seat shell stores a flexible elastic cover, cutting frame complexity while enabling comfortable seating and easy seat depth adjustment.

A bushing, collar spacer, and spring washer keep seatback sectors aligned, maintain spacing, and absorb lateral forces during pivoting.

A torsion spring, shaft bar, and armrest slot stabilize fold-down chair tablets through guided horizontal and vertical rotation.

A pivot guide and sliding carrier extend a recliner leg unit horizontally, creating a larger support surface with lower mechanism complexity.

A threaded riser and resilient grip sheet enable easy height adjustment while holding chair or bed legs securely to prevent tipping.

A link-chain backrest uses a flexible actuator and return spring to keep shoulder and head support during recline and seat adjustment.

A polymeric honeycomb chair frame integrates speakers and ambient lighting to boost immersion and comfort without distracting players.

A resilient seat back mount flexes in multiple directions to absorb exercise forces, improving comfort and reducing structural stress.

Independently movable seat halves with elastic damping couplings let the pelvis move naturally in 3D, easing disc pressure and back strain.

A resilient locking element lets a chair backrest slider enter the guide rail without tools, then snaps into catches to prevent unintended withdrawal.

An axially movable ring gear makes furniture latching fittings smaller while enabling flexible angle setting and reliable locking.

Graphite textile heating with insulation and an earthed metal layer spreads bench seat heat evenly while improving voltage protection.

A recessed shield space lets the vehicle seat tilting lever move fully inside its path, avoiding seat back interference and easing operation.

An inverted four-bar chair linkage cuts back-tilt effort while keeping the seat and backrest moving together for more comfortable posture control.

A frame-cover tensioning structure secures mesh chair cushions, prevents edge wear, and simplifies assembly without clamps or insert molding.

Wave ridges, alignment stops, and flexible wires let a chair lumbar assembly slide smoothly while holding its selected support position.

An offset support member carries much of the tablet load, keeping a movable chair tablet stable while simplifying the attachment mechanism.

A narrowed Z-shaped chair frame enables lateral seat rocking, more leg room, and secure self-centering when chairs are stacked.

Elastomeric deformable members replace multi-part chair recline linkages, moving the seat rearward for support across more seating positions.

Pronounced shell zones support the upper and lower spine while a smooth cushion hides the contour, preserving chair aesthetics and comfort.

Elastomeric deformable members let the chair back and seat recline together, improving support across positions while cutting part count.

An independently rotating footrest bar lets riders adjust skis or feet safely while the safety bar stays closed, using station locking and spring hold.

A hard upper layer and elastic lower layer reduce chair wobble abrasion, absorb tipping impact, and protect wood, linoleum, and plastic floors.

A movable back insert shifts the seat bight forward to support smaller children, then adapts as they grow with removable harness options.

Notched flex zones replace complex chair recline mechanisms, raising resistance as the back tilts while improving durability and cost.

A hitch-mounted seat assembly uses rotatable arms and foldable seats to provide stable outdoor seating with compact storage and quick removal.