Belt Retractors TRIZ Cases

A shiftable planetary gear with spring-loaded blocking levers changes ratio by belt tension, cutting retractor space while maintaining torque transfer.

Two housing halves enclose seat bars and belt modules to improve crash load transfer, rigidity, and packaging in adjustable vehicle seats.

Relocating the seat belt retractor to a cowl cross unit avoids HVAC duct interference, simplifies installation, and removes extra reinforcement.

Multiple torsion-bar stages and a belt wrap angle above 180° enable even load distribution while preserving belt shaft breaking strength.

Recessed support points keep the locking lever mounted during heat and impact while preserving sensor-mass tilting for reliable belt locking.

Opposing ratchets and a linked buckle assembly let a child seat belt tighten or release automatically, reducing manual adjustment effort.

An integrated stop wheel, ball gear, and force limiter cuts retractor part count and size while enabling stable multi-stage belt restraint.

Covered recesses hold the locking lever's rotation elements in place, preventing heat- and impact-driven release in belt retractor sensors.

By nesting the force limiter inside the ball gear, this retractor spool assembly cuts part count and package size while preserving belt restraint control.

Motor feedback drives real-time retractor angle compensation to keep the vehicle sensing device vertical during seat height and recline changes.

A locking retracting shaft controls coil-spring belt force, preventing over-tightening or looseness while keeping child restraints easy to adjust.

A recessed spool retreat portion guides the wire end away from abrasion, suppressing temporary force limiter load spikes in emergencies.

A deformable elongate finger lets top-tether webbing pay out under crash load, absorbing impact energy without hindering seat rotation or recline.

Separated pillar reinforcements and a deformable outer section absorb side-collision loads to limit retractor inward displacement and cracking.

A retraction limiter and 7075 aluminum swivel carabiner help a vehicle pet restraint withstand crash loads without damaging stitched webbing.

A funnel-shaped closing portion and thinner lid guide combustion gas to a controlled rupture point, reducing fragments and improving opening repeatability.

Automated pre-winding, stop slot detection, and baffle installation improve seat belt retractor assembly consistency and throughput.

A wire spool and die create tunable seatbelt load limiting, adapting restraint force to occupant size, seat position, and crash severity.

A movable upper frame and actuator adjust seatback height and webbing guide alignment to fit different occupants for better comfort and safety.

A transfer rod links the reel and gear coaxially, shrinking seatbelt retractor packaging for narrow seat spaces without losing locking or tensioning.

A buckle-linked retractor automatically tightens and releases the child seat belt, reducing manual adjustment while improving fastening reliability.

A resin-molded groove, bent annular collar, and sealant maintain gas generator sealing while avoiding costly precision holder cutting.

Interlocking gears and a slider let waist and shoulder belts move together, simplifying four-point fastening and position adjustment.

A lock ring and torsion bar let the retractor switch torque after pretensioning stops, simplifying seatbelt control while reducing size and cost.

A frame-constrained lock ring prevents tread head and spindle phase error, improving payout speed calculation and belt restraining force in crashes.

A crushable honeycomb block lets the shoulder belt reel absorb deceleration loads before excessive force reaches the occupant's torso.

A bellows gas supply pipe lets a shoulder belt airbag move with the occupant in frontal crashes while avoiding breakage and headrest complexity.