Belt Retractors TRIZ Cases

Segmented locking dogs enable independent reset for minor incidents while maintaining 22.2 kN holding force, resolving complexity trade-offs.

Radial pawl protrusion manages impulse forces to prevent interference with the pyrotechnic drive and maintain load limiting reliability.

A seatbelt retractor positions a gas release hole on the cylinder side to seal the interior space until piston movement begins.

A single retaining member supports the drive device and movable member while transmitting drive force in a webbing take-up assembly.

Cam protrusions drive a rotating member to pre-restrict the pawl, preventing overshoot and injury from residual gas pressure during collisions.

A driver seat fastener uses a bag-shaped section to house the signal line within the shoulder belt for state detection.

A vehicle sensor uses a composite mass to absorb vibrations, reducing noise while maintaining reliable tilting during acceleration.

Magnetic field sensing replaces sliding contacts to eliminate friction wear while maintaining reliable electrical connection for accurate tension measurement.

A trim guide with a recessed stopper constrains the angled seat belt wire on the center pillar.

Angled planar surfaces guide an inertia member to prevent false locking from vehicle vibrations while ensuring activation during deceleration.

An annular groove on the collar engages a bent cup portion to prevent gas leakage during actuation without complex fasteners.

A seat-mounted airbag inflates upward between occupant legs to provide restraint.

A clutch member with asymmetric winding angles suppresses offset displacement to stabilize rotational force transmission in webbing take-up devices.

A friction-mounted control clip manages the inertia element in a self-locking belt retractor to fix the locking mechanism during winding.

A two-part belt shaft design positions a toothed disc in the force flow to limit extraction loads.

An opening in the leg plate enables direct face-on assessment of the ratchet and lock tooth gap, eliminating diagonal inspection requirements.

A tubular pretensioner uses a gas generator to drive a piston within a stamped housing for rapid seatbelt tensioning.

Coupling members link side pillars to wheelhouse reinforcements, maintaining framework stiffness without increasing weight.

A webbing take-up device positions the acceleration sensor rotating axis above its center of gravity to maintain attitude during tilting.

A seatbelt retractor spool uses a pre-formed groove to align the stop gear phase during assembly.

A seatbelt load limiter uses a magnetorheological clutch to dynamically adjust shoulder belt length during rapid deceleration events.

Replacing mechanical gears with a magnetic field sensor reduces installation space while maintaining precise webbing extension measurement.

A buckle moving mechanism shifts a seat belt buckle between normal and raised positions to manage webbing tension during pre-crash events.

Variable tether length adjusts airbag shape to increase protrusion without expanding volume or inflator output.

Telescopic guide parts extend automatically to align the tongue and buckle, resolving difficulty accessing buckles in rotating seats.

A vehicle occupant protection device detects head region movement direction and initial position to determine airbag coverage area.

Spring-loaded control disc rotation releases sensors, minimizing the unlocking path and reducing belt retraction.

A continuous seatbelt anchors at the rear to create a vertically offset lap belt loop that aligns during impact.

A Hall effect sensor detects magnetic field changes from a permanent magnet and interrupter plate to identify seat belt retractor modes.

A vehicle seat airbag uses a belt take-up mechanism to restrain the occupant before inflation.

A belt retractor adjusts force levels via a change-over device triggered by child seat recognition.

A seat assembly integrates a retractor mechanism into the upper frame with webbing routed through a headrest ring member.

A seat belt buckle switch uses a movable coupling member to abut a contact spring in a position-independent manner.

A seatbelt retractor uses a threaded rod and spring to manage load limiting forces during emergency locking events.

A variable force limiter control system adjusts seatbelt tension based on relative speed detection between vehicles.

A one-piece tread head pinion engages a deformable rod to rotate the spindle and take up seatbelt webbing.

A pretensioner uses a segmented gas passage with distinct adjusting and vent portions to control pressure.

Segmenting the igniter support into nested metal and plastic holder elements reduces manufacturing complexity while maintaining structural integrity.

A child seat belt tensioner applies force to a restraining strap using a motorized reel and capstan mechanism.

Motor-driven belt reel adjusts current supply based on lateral acceleration and slip state signals to optimize occupant restraint.

Fragile sections on the center pillar direct controlled bending to protect occupants while maintaining upper section rigidity.

A spindle with a recessed cylindrical portion tilts into parallel frame walls.

A retractor motor measures electrical current to determine seat belt tension without separate sensors.

A seatbelt pin with asymmetric geometry breaks at a controlled load during pretensioner operation to separate the spindle from the lock member.

A vehicle seat with a tip-up cushion exposes rear-mounted wheelchair restraints for independent occupant operation.

An annular spring member and projection prevent pawl return to engaged positions, ensuring reliable clutch disengagement during collisions.

Piezoelectric actuator modulates interference fit between bearing surfaces to control seatbelt pay-out, reducing peak forces for varying occupant weights.

A floating pawl assembly uses a torsional spring to rotate the pawl into full ratchet engagement.

An integrated counter gear mechanism controls sensor activation via a wobbling plate, eliminating separate components and reducing inertial mass noise.