Understructures TRIZ Cases

Detachable chair sections and foldable frame elements let this rollator switch to wheelchair mode while keeping weight low and walking space clear.

Overlapping hinge profiles keep gaps under 5 mm, enabling 180-degree stroller folding while avoiding bulky finger-trap-prone joints.

An enclosed brake housing and self-adjusting brake rod make this foldable walker safer, more compact, and easier to manufacture.

A pinion-driven adjustment arm and vibration levers simplify seat height and position changes while lowering under-frame complexity and cost.

A foldable seat attachment adds a second stroller seat when needed, preserving maneuverability, storage access, and single-stroller use.

Removable transformer assemblies and staggered zone charging simplify cart rewiring while preventing power-strip overloads.

A motor-driven wheel that lowers into floor contact helps move heavy hospital beds with less strain and lower injury risk for caregivers.

A rear-mounted crash strut behind the cooling module absorbs frontal impact energy to limit intrusion into high-voltage components.

Positioning hydrogen tanks between the cab and engine room increases storage capacity while lowering ignition risk and preserving service access.

A double-rib internal reinforcement helps plastic vehicle tanks resist axial, bending, and torsional loads while avoiding bulky supports.

Side and inner reinforcing plates restrain beam sidewall bulging under impact, enabling stable energy absorption with lower weight.

A rigid arch shield with a controlled-deformation section spreads rear-impact loads to protect hybrid vehicle fuel tanks without heavier tank reinforcement.

Flexible clamping structures secure internal reinforcements in plastic fuel tanks while adapting to shrinkage, pressure, and aging.

A lower arm and restraint structure replaces conventional shock absorbers, cutting part count, weight, friction, and suspension packaging space.

Visible tank segments are paintable while concealed sections stay unpainted, cutting weight and cost while keeping a high-quality finish.

Integrated airflow passages, insulation covers, and an instrument-shield inlet improve ATV engine and gearbox cooling while reducing noise.

An integrated stepped cavity locks the support flange in place, boosting fuel tank stiffness while avoiding slow, movement-sensitive welding.

Angled trailer rub rails resist denting and tearing while integrating flat-hook anchor points for stronger, more secure cargo restraint.

A segmented lower member, bumper beam, and upper member create crash-box load paths in tight front-end space to absorb frontal collision energy.

A single corrugated linking plate replaces multiple front corner members to improve crash rigidity, simplify assembly, and free space for accessories.

A raised bar and tensioned cable reinforce a pillarless vehicle door opening during impacts while keeping entry space open in normal use.

Optical scattering and Raman analysis detect fuel tank contaminants in real time, identifying their type and location without destructive sampling.

Phase-change heat storage absorbs fuel heat so a smaller bladder can control vapor pressure without sacrificing tank capacity.

A dual-drive electric fire truck keeps familiar controls while integrating battery power and simplified cable routing between the frame rails.

A spaced coating part with electrodeposition paint boosts axial-crush buckling strength, prevents fracture, and adds vibration damping.

A sliding link mechanism lets the vehicle fold for stacked shipping and unfold for travel, cutting destination assembly work and transport cost.

Integrated fluid channels inside a front box structural member save EV packaging space, simplify installation, and reduce rigid tubing.

By stacking the air guide panel above the stabilizer, this layout shortens the front body, improves turning, and supports a lower center of gravity.

A side sill bracket links the outer sill and reinforcement member to transfer crash energy, limit rotation deformation, and preserve occupant space.

Stopper ribs limit nozzle depth so the intake hole stays clear of liquid fuel, preserving automatic shutoff during refueling.

Spherical bearings at cab support connections absorb frame twist on uneven ground, preserving cab support strength without adding vehicle weight.

Raised cross-member midsections create more tank space in an RV chassis while preserving structural integrity and reducing refill frequency.

A two-section spring hanger with distributed fasteners increases trailer frame stiffness and strength while reducing cracking risk.

Diagonal brackets let a vehicle cooling module mount in a tilted position, improving airflow while helping the front frame distribute crash energy.

A U-shaped axle bridge links control arms to free electric drive space while preserving wheel guidance, force distribution, and ride comfort.

A fixed front bumper with selectable mounting bases lets dump trucks swap radiators or pantograph supports while preserving lifting-load joint strength.

An undulating cast deformation body enables progressive bending and fold interlocking to absorb crash energy with low weight and efficient assembly.

An electrodeposition coating in a controlled gap boosts crash tube buckling strength, prevents fracture, and adds vibration damping.

Sensors and onboard computing distinguish DEF from FSII in refueling tanks, triggering alarms or shut-offs before jet fuel contamination.

Biasing engagement between a fuel tank carrier part and struts prevents tilting while allowing sliding after molding to maintain alignment.

A corrugated impact member inside the underbody frame spreads side-collision loads to limit cabin-side deformation and protect underfloor batteries.

Internal strip-shaped reinforcements in a hollow vehicle sill absorb lateral impact energy while limiting rotation, buckling, and bending.

A slotted floor-member joint lets the side member shift in a rear collision, reducing load transfer and suppressing framework deformation.

A split power-board and signal-board layout lets one motor-pump unit fit different vehicle voltage levels with lower modification cost and wiring.

A metal center pillar detachably joined to the rocker enables easier replacement, reuse, faster assembly, and battery-pack protection.

A movable support lets fuel system components enter a plastic tank in a compact state, then extend for precise placement with fewer wall openings.

Grid-patterned ribs and a load transfer member curb bumper bending and cracking in small-overlap crashes while limiting front-end intrusion.

A stepped upper and lower rocker panel layout improves side-collision energy absorption, occupant protection, and body stiffness.

Layered rear load paths using wheel covers, longitudinal beams, and support rods improve crash strength in compact vehicle bodies.

A conduit and controller detect cable access, trigger alarms, and cut contactors to prevent contact with live high-voltage wiring.

Cross-beams and vertical structural elements spread crash forces more evenly, reducing torque, bearing stress, and uneven crumpling.

Angled installation of non-handed vehicle corner modules lets both wheels reach full lock while preserving Ackermann geometry and reducing tire wear.

A reinforced one-piece undercover links the subframe and body to raise front-end rigidity, improve NV performance, and avoid extra parts.

A hinged bow-shaped impact beam lets a truck grille open for service while engaging the A-pillars to absorb front crash forces.

A longitudinal engine-CVT layout and angled prop shaft cut utility vehicle width while preserving powertrain capability and rear-component clearance.

Embedded conductive contacts ground static charge from the float arm, suppressing sparks in compact fuel tank level detectors.

Two offset cameras merge safety and coupling views into one cab display, helping drivers align trailers accurately without screen switching.

Image-based liquid volume estimation tracks moving containers, improving surface accuracy for failure detection and predictive maintenance.

Movable side shells expand a chassis-mounted shelter into a larger, stable living area while keeping transport and loading practical.

An internal side cheek stiffens the heat shield support, limiting side-impact movement to prevent fuel tank puncture and screen tearing.

Integrated cast front and rear frames with a tunnel frame cut parts count while carrying front and rear collision loads through the body.

Detection layers built into a routed high-voltage vehicle cable help locate sheath wear early, improving uptime without external add-ons.

Dual engagement sections bend around a fulcrum during side impact to stop door flip-up and keep the side door engaged with the sill reinforcement.

A fixed-and-sliding mount lets a vehicle hydrogen tank expand and contract while reducing stress on fuel pipes and mounting components.

A floor recess lets pressure vessels sit beside the passenger area, preserving fuel storage while improving cabin space and layout comfort.

Diagonal members and spaced cross members disperse offset rear-impact loads to better protect the battery and fuel tank.

Adjacent wheel drive units in a standardized frame cut layout variants and manufacturing cost while preserving wheelbase flexibility.

Horizontally long slip-preventing protrusions maintain core-metal restraint while reducing cracking and preserving vibration absorption.

An integrated front-end node links crash box and crash extender to cut welds, lower weight, and improve impact load transfer.

Hidden floor-level fasteners let modular truck service bodies keep welded-like rigidity while eliminating exposed bolts that hurt appearance.

A reinforced side sill and cross member redirect side-collision loads through the floor panel to protect the battery.

Overlapping side sill reinforcements and a cross member redirect side-collision loads away from the battery to improve protection.

Compressed reactor arms let a repair insert enter closed vehicle box members, then expand for uniform adhesive contact and structural repair.

Offset ribs and staggered cells smooth destructive load timing in a vehicle impact absorber, improving energy absorption and deceleration control.

A cast protruding joint replaces spacers in vehicle body assembly, preserving joining strength while simplifying fabrication steps.

A rear-baffle access port lets off-road vehicle air filters be changed from inside the cabin without tools or full cover removal.

A vertical day tank cuts the fuel-water interface in enclosed generators, reducing microbial growth, sludge, and return pump complexity.

A dual-gasket locking ring seals the container and closing plate to limit vapor leakage and improve fuel tank sealing reliability.

Pre-formed crush initiators in a tubular front rail guide axial deformation to absorb frontal impact energy predictably with lightweight use.

A longitudinal engine-CVT layout boosts utility vehicle power while preserving trail-compatible width and reducing rear component interference.

An inclined plate behind the lower crash box helps spread frontal impact loads and limit power unit room deformation in EV front structures.

Layered upper, lower, and supplemental plates secure a tow saddle chain while keeping bolt height low to avoid under-carriage damage.

A labyrinth vent, membrane, and filter keep the filling volume dry and clean while allowing gas exchange around a vehicle pressure vessel.

A base-guided latch and fixing member secure the fuel pump reservoir cup while improving assembly and attenuating tank vibration.

A movable running board rotates above the rocker to absorb side-impact loads, reduce intrusion, and protect battery-adjacent vehicle structure.

Nested steel reinforcements inside a hollow side sill form a closed section that improves crash energy absorption, rigidity, and weight.

Positive gas pressure in a recessed fueling compartment blocks particulates and gases during fuel transfer, protecting tank fuel integrity.

A welded tubular connector creates a tank-specific swirl pot, letting standard liquid delivery modules fit varied plastic tank shapes at lower cost.

Bolted galvanized angle profiles let damaged trailer sections be replaced quickly while maintaining strength, rust resistance, and lower weight.

Flanged composite crash structures cut BEV weight and manufacturing complexity while preserving load paths, crash safety, and repairability.

A single controller integrates lights, heaters, and motors in a preassembled refuel or recharge door to cut wiring and installation complexity.

A segmented sliding door and forward key aperture improve cab access and driver visibility while keeping the cargo area securely locked.

An undulating planar stiffening structure boosts fuel tank pressure resistance while limiting edge crack formation and preserving usable interior volume.

A hollow support structure with fixed and removable brackets secures multiple CNG tanks near the cab to boost runtime and cut emissions.

Rack-mounted batteries and power electronics fit between cab and body, preserving familiar fire truck layout while improving service access and uptime.

Routing high-voltage cables through the water tank, torque box, and chassis notches protects wiring while simplifying electrified fire truck packaging.

Oversized windows, adjustable seating, and a sliding door widen driver sightlines and access in parcel delivery vehicles.

By mounting the in-tank fuel pump through the fuel fill opening, this case cuts leakage points, lowers tank fabrication cost, and keeps fuel liquid.

Water-in-fuel data from multiple stations is scored to recommend cleaner diesel refueling options and reduce engine and fuel system degradation.

A dry-break member with a removable sealed plug lets one refueling coupling switch between pressure and gravity filling without leakage.

Quick-release battery modules and plug-in connectors simplify EV maintenance and separate packs from the chassis to limit collision damage.

Selective expanded aluminum mesh roll assemblies fill varied fuel tank shapes while maintaining low volume occupancy and suppressing ignition risk.

A monolithic network of bonded plastic threads is joined to the tank wall to damp liquid motion and cut sloshing noise without loose mats.

A removable transition tube redirects pressurized fuel through one filler neck, reducing foam and supporting both gravity and pressure refuelling.

Steel pipe frame members and impact-tuned joints spread frontal collision loads to protect the passenger compartment and battery.

Driving-mode detection switches fuel estimation between damping and cumulative consumption to keep gauge readings accurate in circuit driving.

A front beam protrusion contacts high-rigidity subframe joints to create lateral force and improve small overlap crash load transfer.

An integrated suspension mount between chassis side plates spreads loads more evenly, reducing stress concentration, stiffness jumps, and weight.

A two-member rocker structure spreads pole-impact loads and drives wider inner-member deformation for more efficient side collision energy absorption.

Front bulkhead vertical members extend forward to position load transmission members outside side frames.

A movable push member in a blowing mold constrains the barrier layer position to prevent migration into the welding zone and preserve weld integrity.