Reclining Chairs TRIZ Cases

See how a simplified pivoting linkage moves the seat and backrest forward during reclining, ena

See how a single driving device with shared transmission controls both leg and backrest assembl

See how a bending spring element and additional element form a resilient composite system, enab

See how a polygonal T-shaped connecting rod drives synchronized backrest forward movement to ma

See how a flexible sheet replaces metal springs in chair back tilting to reduce fatigue, noise,

See how a flexible sheet replaces metal springs in chair back tilting to reduce fatigue, noise,

See how a four-connecting-rod linkage with limiting plate constrains backrest motion to close t

See how a linkage-based footrest replaces slot mechanisms to eliminate noise and wear while ext

See how a symmetric seat frame support assembly with modular quadrilateral frames and hinged ba

See how an elongated V-shaped seat plate with distorted N or Z-shaped configuration extends sea

See how a connecting-rod mechanism enables a chair to switch between multiple unfolded states u

See how a modular locker integrates a motorized reclining seat and roll-up door to add comfort

See how a link-based transmission mechanism connects motor, rod, and scissor structure to simpl

See how a driving elastic member stores energy during extension and automatically retracts the

See how a theater chair combines flip-up seat springs with sensor-triggered linear actuators to

See how a movable second pivot guided along a vertical path eliminates weight-dependent adjustm

See how a coupling member enables tool-free removal of seat and legrest units in reclining furn

See how a protective cover on recliner footrest linkage members prevents child and pet injuries

See how a virtual pivot positioned above the seat surface uses ramp assemblies to minimize back

See how a triangular three-legged base with asymmetric leg positioning reduces chair footprint

See how a simplified linkage assembly uses a single linear actuator to coordinate seat tilt and

See how a ratchet, rod, and return device enable simple furniture height adjustment across mult

See how L-shaped side bases mount recliner chairs at tread-riser intersections, eliminating deb

See how a seat chassis integrates the drive mechanism beneath the seat frame to enable automati

See how a cutaway frame and nested reclining mechanism enable theater seat retrofit on existing

See how a straight transmission rod and cross-shaped connection rod configuration increases sof

See how a simplified linkage assembly with a single linear actuator reduces complexity and asse

See how a single-piece plastic functional body with integrated flexible zones replaces complex

See how dual independent drive mechanisms enable separate foot rest and seat frame movement ali

See how adjustable linkage segments increase seat pitch from 13 to 24 degrees in fully-reclined

See how hingedly coupled foot and seat frame sections with length-adjustable coupling enable co

See how a two-phase linear actuator enables independent seat inclination and telescopic leg res

See how a lever-based linkage replaces screw mechanisms to adjust chair tilt force with minimal

See how a multi-link backrest assembly and leg extension device enable zero-wall clearance recl

See how a hinged ottoman linkage with adjustable connection links resolves fixed-distance infle

See how a bending-element synchronous mechanism eliminates complex transmissions by using elast

See how a single displacement unit with integrated lever linkage achieves two-stage seat inclin

See how a leg-lift zero-gravity seat frame uses independent leg rest tilting to deliver weightl

See how a weight-sensitive backrest pivot mechanism projects a virtual pivot above the seat to

See how a self-sealing flexible skirt and barrier sidewall contain viral and bacterial aerosols

See how two spring assemblies in series reduce component count while enabling swivel resistance

See how eccentric disc cams with curved profiles and follower lugs enable stable seat inclinati

See how a closed-loop connecting rod mechanism with segmented transmission components maintains

See how rocker and ground flex elements deform elastically during reclining to reduce seat rise

See how a segmented linkage mechanism enables wall-proximity reclining without bulky visible pa

See how a chain-based actuating element transmits only tensile forces to adjust chair spring po

See how a nested cartridge mechanism with counterbalance assembly enables smooth backrest recli

See how an adjustable support element changes swivel resistance by altering spring force-travel

See how a single-piece plastic functional body with differentiated flexibility zones replaces m

A motorized chair mechanism coordinates seat recline with ottoman and footrest extension while enabling more independent position control.

A multi-link footrest uses seat motion to achieve longer extension and compact under-seat storage without separate control rods.

A movable support bends a spring during recline to create smooth backrest return force with simpler chair mechanism construction.

Separate linear actuators let the backrest recline and the footrest extend independently, improving seating flexibility and ease of use.

A spring-elastic wrap on the rotation shaft enables quiet stepless recline, prevents unexpected rotation, and simplifies chair adjuster assembly.

A torque tube and unequal links create rear tilt and zero-gravity motion while keeping the recliner clear of the wall.

A threaded actuating rod and adjustment carriage let the seat reach a high tilt quickly while still allowing fine, secure inclination setting.

A symmetric linkage layout lowers convertible sofa seat height while hiding rods, thickening cushions, and improving comfort and styling.

A locking slide and telescoping core structure prevent wobble while enabling smooth armrest height adjustment and pad angling.

A rear-mounted motor and reverse transfer linkage cut recliner wiring complexity, hide the motor, and reduce damage risk.

A pivotable lever varies active lever length to adjust chair backrest restoring force with less effort, lower height, and consistent weight setting.

A linked back-seat recline uses glide tracks and a bias spring for comfort, while retractable ganging arms prevent damage when chairs are not joined.

A sliding sleeve and supporting plates move the seat forward and upward during recline, improving lying comfort while keeping the chair stable.

A gear linkage couples seat travel to leg-rest pivoting, replacing bulky linkages with simpler adjustment and precise end-position control.

A torque-fixed bending spring lets the seat board deflect transversely, simplifying chair mechanics while preserving ergonomic synchronous movement.

A linked backrest, rear seat guide, and spring assembly keep seat-back motion synchronized to reduce whipping, shirt pulling, and posture loss.

A movable bearing pin changes lever arms instead of spring preload, giving office chairs a wider reclining force range in a compact mechanism.

An integrated seat linkage coordinates height, tilt, and backrest motion to prevent shirt pull-off while improving seating comfort.

A pull-rod seat linkage converts backrest tilt into seat lift, keeping office chair counterforce stable across recline angles.

Curved-track roller guidance keeps the backrest pivot aligned with the user's pelvis, eliminating pull-out in synchronous chair recline.

An elastomer block and sliding contact surface let seated users adjust backrest spring force smoothly while holding the chosen position under load.

Eccentric cams and a lever lock a chair seat in horizontal or inclined positions, improving comfort with a simple low-cost mechanism.

An integrated pivot gear, damping unit, and retaining spring lets a footrest retract fully under the seat while keeping the chassis slim and stable.

A compact lever and spring mechanism locks or releases a chair seat and back with less effort, lower part count, and reduced space use.

A hinged pelvic support synchronizes seat and backrest movement to prevent slipping and improve ergonomic seating without added complexity.

A moving actuating element changes spring leverage during recline, making office chair pivot resistance easier to adjust with minimal force.

A stepped backrest stop with Bowden cable actuation preserves pelvic and lumbar support while keeping recline adjustment within reach.

A rod-guided cursor and worm-drive knob adjust seat spring preload precisely while avoiding jamming, bulky linkages, and calibration drift.

A planetary gear and detent bearing shift the chair spring axis step by step, avoiding jerking while matching spring force to user weight.

A modular base, adjustable legs, and angled roller-track linkage let theater seating recline smoothly, fit uneven floors, and stay easy to service.