Belt Retractors TRIZ Cases

A disc motor directly drives the belt reel to replace gears and clutches, enabling versatile seat belt motion profiles with lower complexity and cost.

Multiple vehicle anchors switch between waiting and sleep modes to locate a smart key accurately, cut battery drain, and block outsider access.

A transfer rod links the belt reel to a coaxial motor and gearing set, cutting seat-space demand while preserving reel blocking under pull-out or deceleration.

A lock gear stopper tilts the flywheel during non-operation to remove gap-induced rattling while preserving spool lock actuation.

A spring-loaded coupling and polygonal drive wheel switch torque paths in a motorized belt retractor, saving installation space.

A motor-driven sliding belt guide on the seat backrest adjusts outlet height with recline angle to maintain comfort and restraint across body types.

Symmetrical deformable bands and a torsion bar let the retractor switch load levels mechanically, cutting pyrotechnic complexity and cost.

An integrated clutch cover locking piece replaces a separate stopper to restrict torsion shaft rotation with fewer parts and less complexity.

A straight axial tensioner tube with an angled gas generator compacts the belt retractor for vehicle seats without losing belt capacity or occupant spacing.

Separate HMI thresholds alert the driver first and the passenger later, improving contact-risk awareness without unnecessary discomfort.

Modular seat-frame adjustment and an underseat belt retractor enable compact zero-gravity seating without losing restraint function.

A connecting bracket links inner and outer pillar reinforcements to form a closed side sill section that resists lateral intrusion.

A separate installation member isolates the vehicle sensor from cover-borne vibration, improving locking accuracy while cutting parts and assembly cost.

A speed-responsive clutch creates two torque paths in a motorized belt retractor, cutting gearbox space while preserving multi-mode operation.

A rolling-element clutch enables fast, quiet low-speed seat belt retractor engagement and complete disengagement to reduce impact and noise.

Dynamic anchor sleep and wake control cuts vehicle smart key power drain while preserving terminal positioning and unauthorized access protection.

A guided stopper pressed by the moving member stabilizes tooth engagement and suppresses rotating member motion for reliable emergency webbing take-up.

A ring-guided energy absorbing wire stabilizes webbing pull-out loads while reducing winding drum axial size in a compact seat belt retractor.

Collision signals trigger rapid seat, recline, and belt-tension adjustment to move occupants away from intrusion and reduce injury risk.

Nested torsion bars and a solenoid let the retractor adjust webbing payout resistance to occupant size without manual action.

A multi-stop detent mechanism lets belt retractor components snap together without tools while keeping disassembly force high.

A movable anchor shifts from the seat base to the seat back so the belt restrains passengers in both upright and highly reclined positions.

An inclined inner projection at the pretensioner tube exit counteracts cable curvature and preserves tangential drive gear engagement.

Adjusting solenoid attraction after spool lock keeps emergency webbing restraint effective while easing sensor lever return and lowering lock load.

A radially elastic spring housing lets the return spring shift under load, cutting belt shaft bearing friction for smoother seatbelt winding.

Non-integer helical gear overlap and tuned helix angles improve seatbelt tensioner smooth running while lowering axial forces and cost.

A segmented frame places the reel, lock, sensing, pretension, and load limiting parts compactly on one side for easier assembly.

An integrated C-pillar reinforcement damps seatbelt retractor vibration and resists crash deformation without added weight or cost.

Dividing the locking base into two members simplifies drive wheel attachment, reduces weight, and keeps the seat belt retractor compact.

A shorter airbag-to-lap-belt joining region keeps the belt tight on the occupant's waist during pretensioner operation and impact.

A chassis-welded seat belt loop redirects off-axis side-impact loads away from the retractor while preserving smooth, predictable belt travel.

A lid-base seatbelt guide releases at preset lateral tension to keep webbing on the shoulder during oblique impacts without affecting frontal restraint.

A single-handle ratchet and cam buckle remove slack, set proper harness tension, and prevent accidental release or tampering.

A shared actuator drives dual blocking devices in a planetary gear retractor to save seat space while enabling low-force winding and belt tightening.

Multiple couplings and compressible absorbers enable controlled webbing payout and progressive impact energy absorption during crashes.

A tube aligned parallel to the belt reel axis saves seat space while preserving tensioning capacity and structural support.

Sensors and control logic track occupant-to-object distance, then adjust seats or restraints to reduce collision contact risk.

An elastic spacer moves the seat belt deflector away from the seat to improve fit across occupant sizes and absorb crash forces.

Movable webbing on longitudinal and vertical tracks improves occupant kinematic control during impacts, including for personal mobility users.

An adhesive-held sliding suppressor cuts seat belt retractor sensing noise in normal driving while releasing locking in emergencies.

A cavity-integrated belt retractor in the seat back saves space while maintaining rigidity and direct restraint-force absorption.