Belt Retractors TRIZ Cases

A delayed reel lock lets passengers move forward briefly before restraint, lowering spinal loads and reducing seat reinforcement needs.

Predictive vehicle safety control triggers a waterproof inflatable structure with prolonged gas generation to protect occupants and pedestrians.

An electromagnetic locking lever with dual magnetic circuits and an elastic tip improves belt retractor holding force while preventing false locking.

A lubricated, rotatable sensor housing cuts belt retractor noise on rough terrain while allowing flexible acceleration sensing.

A pre-mounted securing component and fixing element let a seatbelt belt shaft lock quickly while maintaining stable high-load fastening.

A tether linking the conduit and airbag side wall evens inflation pressure to stop lap belt airbag lift and keep stable occupant contact.

A guide element rolls the seatbelt into a compact form so a tubular seat crossmember can house the pretensioner without added friction or jamming.

Camera and map data predict bend-induced lateral acceleration so the seat belt tightens early, improving driver warning and occupant restraint.

A switchable pawl-and-friction one-way clutch lets a seatbelt retractor pretension the belt without interfering with irreversible pretensioning.

A heating filament tunes torsion-bar yield strength by occupant size, helping seatbelt load limiting maintain chest protection across users.

Interior cabin sensing flags uncertain seatbelt fastening, prompts occupant action, and re-checks status to improve pre-drive safety.

Interior cabin sensing checks seatbelt fit, prompts the passenger when confirmation fails, and re-checks fastening to avoid false positives.

A deformable body reinforcement anchors the seat belt retractor in tight rear-body space while absorbing tensile loads and preserving torsional rigidity.

A dual slip-ring belt shifts the webbing pivot during deceleration to reduce free-flail spinal tension and seat deformation.

Motor-triggered release and re-blocking let a belt retractor extend step-wise under load, reducing occupant force with controllable pull-out.

An actuator delays braking claw engagement after impact so the belt can pay out briefly, improving occupant position and reducing torso compression.

A counterweighted lock pawl and movable control element prevent unintended web payout while allowing secure take-up and controlled unlocking.

A delayed reel lock lets passengers move forward briefly before restraint, lowering spinal tension without heavy pretensioners or seat reinforcement.

A spring-biased seatbelt guide in a pillar slot allows controlled webbing payout during impact to reduce chest compression force.

An integrated drive wheel and force-limiting member keeps pretensioning compact while delivering stable shoulder force during emergencies.

Collision risk from following and preceding vehicles drives seat belt winding speed, improving restraint without constant high tension.

Multiple vehicle anchors switch between sleep and waiting modes to detect a valid smart key, cut battery drain, and block unauthorized access.

A reinforced mount secures both the seat belt retractor and latch wire, cutting parts and easing assembly in tight vehicle spaces.

Distributed vehicle anchors alternate between sleep and waiting modes to cut battery drain while preserving position-based smart key unlocking.

An integrated frame places locking, sensing, and pretension parts on one side while a torsion bar limits belt torque and peak occupant force.

Sensors detect buckle status, occupancy, headrest position, and harness tension to guide secure child seating and trigger automatic tightening.

Optical lock and strap indicators let one camera verify seat belt use, reduce wiring, and catch buckle tampering across flexible seat layouts.

An adhesive-held sliding suppressor quiets seat belt vehicle sensing during normal driving, then releases under rapid spool rotation to preserve locking.

An adhesive sliding suppression part restrains sensing-ball collisions in a seat belt retractor while preserving emergency locking sensitivity.

A plate-and-column tether routing layout coordinates belt deployment and retraction to improve occupant positioning with an airbag.

An acceleration-triggered airbag in the impact shield stabilizes the child during crashes to prevent head nodding and submarining.

A retractable lock and visual pin let an L-track fitting stay compact while securely retaining wheelchair restraints in tight vehicle spaces.

A post-and-spring load limiter with inertia clutch regulates webbing payout to reduce chest compression without torsion bars.

An actuator, brackets, and tether retract a deployable seat belt in sync with airbag deployment to improve occupant positioning and comfort.

Low-water-absorption resin and elastomer tuning keep a seat belt power transmission member stable and impact-resistant at low temperatures.

A sliding suppression part held by friction or magnetism cuts seat belt retractor sensing noise while preserving emergency locking sensitivity.

A two-part pretensioner piston uses a stronger contact part and pressure-dissipating grooves to limit pressure peaks without interrupting force transfer.

A weaker wire connection lets the torsion bar disconnect at set rotation points, adding webbing payout to reduce chest compression.

A load-responsive guide member limits locking-base friction during pretensioning, then permits lock-tooth contact for webbing energy absorption.

Obstacle detection and gaze tracking trigger steering vibration and seatbelt tightening to warn drivers of hazards outside their line of sight.

Sensor-driven control signals actuate a magnet to lock or unlock the seat-belt web retractor based on vehicle and seat conditions.

Integrated side reinforcement mounts the rear seat retractor and upper anchor, improving pillar strength while avoiding extra reinforcement.

A pyrotechnic gas generator boosts belt shaft acceleration so a reversible electric retractor can reach high speed without extra tensioners.

An active decoupling mechanism switches a seat belt retractor to a second force-limiting stage to prevent uncontrolled webbing extension and damage.

An elastic holder keeps the transmission element clear for full disengagement, faster re-engagement, quiet winding, and low-speed seat belt comfort.

A seal-plugged ball-drive pretensioner contains hot gas leakage while delivering immediate seat belt retraction during impact.

A webbing-triggered vibration motor helps visually impaired occupants locate the seatbelt buckle and engage it more easily.

A modular spool and drive-device layout uses reconfigurable orientation to fit tight seat backrest space across varied seat designs.

Tapered thrust teeth cut engagement resistance in a fluid-driven webbing take-up spool, enabling smoother rotation and stronger occupant restraint.

Impact detection triggers seatbelt latch release and an audio cue, helping occupants exit faster when manual buckle release is hard.