Sofas TRIZ Cases

A foldable bed uses straps, clamps, and adjustable legs to stay stable on bleachers or uneven ground while keeping athletes close for recovery.

A contoured two-region cushion supports the medial epicondyle bones while relieving patella pressure to keep knees aligned during sleep.

Independent head adjustment on each side is combined with a joined lower support section to keep one mattress gap-free and comfortable.

Spaced resilient slats restore sagging mattress areas while preserving comfort, avoiding the overly rigid feel of solid support panels.

A slick single cover lowers friction between mattress and foundation, letting one person rotate a heavy mattress with minimal effort.

A concealed pocket and magnetic cover integrate lamps, charging, or sound into extensible furniture while preserving floor space and cleaning access.

A contoured concave seat, sacrum hump, and 135-degree backrest prevent forward sliding while reducing spinal disc and muscle strain.

A translating pivot axis lets the motorized support part move away as it lifts, preventing mattress compression and preserving a flat support plane.

A rotating extensible bed frame keeps the desk level during conversion and adds couch and wider bed functions in one space-saving unit.

Patient position detection triggers bed movement limits and alerts, reducing caregiver burden and preventing hazardous operation.

An elevated resting surface with side-wall connectors adds comfortable seating or sleeping in a vehicle bed while preserving storage underneath.

Rotary driving members adjust sofa backrest and headrest angles with a simpler, more stable structure that improves comfort and lowers cost.

A motor-driven guide rail and rolling support bracket enable continuous seat depth adjustment with lower friction and less wear.

A synchronized waist-lifting linkage lets an adjustable bed raise the trunk independently, improving waist support without disturbing other body parts.

A rotation limit member and elastic linkage keep sofa headrest sides synchronized, evenly loaded, and neatly folded onto the backrest.

Sensors and a controller track stored bed conditions, trigger local alarms on changes, and lock Fowler angle at a set position.

A removable footboard with an inflatable bladder stays pressurized and adjusts height to lower bed seat height for safer chair egress.

A raised cushion with spaced breast openings supports prone lying while reducing breast pressure and fitting different body sizes.

Self-locking feet and a gas-spring cable mechanism secure a pull-down bed in both closed and horizontal positions for safe, compact operation.

Lever-operated clips and segmented support bars cut cot assembly force while reducing folded weight and storage volume.

Hydraulic or pneumatic side sections turn bed patients in timed cycles to reduce pressure sore risk without constant nursing supervision.

Circular-arc fillets in a one-piece T-shaped bed frame member improve strength and manufacturability without joining two angle irons.

A two-part sliding bed bracket keeps the mattress secure while simplifying self-installation and avoiding protrusion damage during delivery.

LED status indicators in the linear actuator pinpoint faults in the power supply, hand control, or actuator to cut furniture repair costs.

Pivoting base, seat, mid-frame, and back sections enable compact RV sofa-to-bed conversion with stable support and simpler deployment.

A releasable insert-and-linkage hinge lets convertible sofa sections lock and pivot by hand, avoiding screws, tools, and extra parts.

A ramp-driven siderail mover lowers the rail during foot section pivoting to prevent interference and damage in bed-to-chair transitions.

Dual side head supports shift head weight away from the neck to limit wobbling, prevent inversion, and improve travel comfort.

Power-on state capture, visible amber lamps, and angle lock control help caregivers detect bed alarms and prevent unsafe Fowler lowering.

A battery, solar, and mains-capable drive unit enables weatherproof lounge chair adjustment without external power or manual repositioning.

A rotating flexible pelvic seat applies inward compression to limit gluteal spreading and maintain lordotic posture during sitting.

A pivoting assist arm adds leverage to cot connections, making taut fabric assembly easier on uneven ground or in low light.

A torsion bar and separate elastic assemblies let a mattress support change position while limiting stress, wear, noise, and bulk.

A four-bar siderail linkage shifts between tall deployed and low stored positions while reducing pinch risks and preserving cleaning access.

A wedge-shaped inflatable spinal support restores alignment on incline ramps, improving chest wall expansion and breathing in obese patients.

Phased airflow through partitioned plenum chambers rotates the occupant laterally while preserving the bed's fluidization therapy benefits.

Interlocking slats, runners, and a U-shaped frame create a lightweight bed that packs compactly and assembles quickly for temporary sleeping use.

A centerline spinal support with an incline ramp aligns the back, redistributes body mass, and improves chest wall expansion for easier breathing.

An openable waist enclosure with an inclined front platform improves stability for twin nursing and other hands-free seated or standing tasks.

A compressible rear positioning member engages the mattress to keep side sleeping and deter back-rolling that can trigger airway closure and snoring.

Contoured neck support, headrest, and side buttresses keep the head stable and the cervical spine aligned during seated or semi-reclined travel.

A wider top pad and secured side members expand hospital mattress width to create a seamless lying surface and reduce sore risk.

Interlinked hinged frames let a convertible sofa switch to bed or recliner modes without removing cushions or moving away from the wall.

Segmented shield members and a width extender cover gaps between articulating bed sections while preserving bed motion and expansion.

A rotary-arm leg support expands for comfortable leg extension and folds under an office chair to improve circulation and save space.

Interlocking pedals and gears let a salon chair footrest open for support and close for easier exit, reducing tripping hazards.

A rotating chair foot ring uses a convex support section and recessed arc to provide foot support without blocking legs as seat height changes.

Preset back and knee angle patterns help an electric bed reduce patient sliding and chest or stomach pressure during repositioning.

Articulated links, stops, and a spring let a pull-out seat extension fit under low furniture while deploying smoothly with stable support.