Belt Retractors TRIZ Cases

A belt retractor uses a disengagement mechanism to separate the load transmission element from the pinion.

Adjustable mounting holes align stability sensors across vehicle models while arc-shaped arbor holes prevent spring slippage during retraction.

Switching plate guide part directs lever member contact surfaces to enable compact automatic lock mechanism design.

A seatbelt retractor lock mechanism uses a nested ring member to enable relative rotation within a closed cylindrical portion.

An integrated locking mechanism switches states based on rotor-spool rotation, reducing component count while maintaining reliable unwinding restriction.

An integrated seat belt buckle merges a pretensioner and torsion bar force limiter, reducing part count while limiting chest force during vehicle impacts.

Attaching the retractor to the seat frame and projecting it outward prevents interference with the crew, enhancing riding comfort.

A piston engagement portion with a hook restricts reverse movement to maintain the pawl release position.

Tilt restricting portions on the V gear contact the sensor holder to suppress lock clutch body tilt, ensuring stable emergency lock engagement.

A magnetorheological fluid brake regulates seat belt tension via magnetic viscosity control.

A pretensioner control system adjusts belt tension using vehicle speed and steering dynamics.

An electromechanical actuator drives a tensioning element to maintain optimal belt tension, preventing slippage during driving conditions.

An elastic fixture resolves dimensional errors in press-molded cylinders by adapting contact points to ensure reliable attachment.

An actuator engages a brake drum to hold the seatbelt extended on rough terrain, resolving reliability issues with makeshift gripping devices.

Radially elastic pivot bearing supports spring-side reel end for free radial motion in belt retractors.

Rotating cam guides pretensioner cable through a dedicated receptacle, separating the mechanism from occupant interaction zones to prevent cable fatigue.

An elastic coupling member twists to urge a pawl against a ratchet gear, eliminating heavy urging springs and enabling compact seatbelt retractor designs.

An extension joins a bracket to a rear roof rail front wall, distributing seat belt loads to improve structural rigidity.

A drive unit adjusts seat belt tension via a control unit that activates during driving mode transitions.

A rotating disc mechanism adjusts the pretensioner wire angle to optimize seat belt mounting geometry.

Segmented igniter support uses metal and plastic holder elements to resolve manufacturing complexity while maintaining electrical conductivity.

A belt retractor pinion moves between engaged and disengaged positions to rotate the reel freely.

A vehicle floor panel integrates parallel channels to receive wheelchair wheels and an electronic latch mechanism for secure retention.

A force limiter replaces slow electronic control with a mechanical bell-crank lever that adjusts friction in real-time, resolving response speed bottlenecks.

Coaxial lock ring and spool arrangement integrates torsional deformation with wire winding to absorb kinetic energy in compact webbing take-up devices.

Radial displacement of the engagingly locking portion prevents unnecessary spool locking, reducing device size while maintaining safety reliability.

A single spring element drives a planetary gear system to generate variable winding forces, resolving complexity issues from multiple springs.

A pawl actuator control module disengages a seatbelt retractor pawl from its control disc based on sensor inputs.

A pivoting lever drives a control disc to rotate the belt shaft, simplifying the coupling structure.

A locking lever merges vehicle and webbing sensor cutoff into one action, reducing component count and manufacturing costs.

A belt retractor control system pre-tensions webbing on the reel to minimize slack before occupant fastening.

A webbing winding device holding member uses leg portions engaging frame holes to secure a pretensioner without screws.

A webbing take-up device uses a restriction portion to constrain axial movement of the moving member.

A webbing take-up device uses a restricting portion to constrain pawl displacement until spool rotation occurs.

Minimized contact surfaces and a hollow cover space dampen structure-borne noise while maintaining mechanical stability.

Reciprocal operation gears wind the safety belt gradually, resolving the trade-off between automation complexity and user-adjustable tension.

Circular shaft abutment design prevents dirt accumulation on webbing take-up device sensors.

Replacing metallic balls with a plastically deforming polymer rod reduces weight while preventing gas leakage and webbing payback.

A seatbelt retractor uses a torsion bar and magnet rotor to generate drag force during rapid webbing payout.

Curved cross-section distributes load evenly across the belt shaft, minimizing deformation and imbalance during webbing winding.

A motor-controlled belt reel adjusts its wound position to stabilize occupant posture during vehicle operation.

A restriction member enables a sun gear to follow internal-toothed gear radial displacement, suppressing meshing instability without requiring high rigidity.

A serrated lock base with a front-facing flange blocks rearward displacement, maintaining ratchet engagement during vehicle emergencies.

Segmented loop structures encircle damper supports to resolve the trade-off between manufacturing ease and rear body rigidity.

Segmented stamped base members replace complex die-casting to lower manufacturing costs while maintaining structural stability.

Electronic control unit delays seatbelt take-up after minor collisions to reduce motor torque requirements.

Integrating pinion teeth onto the lock base reduces diameter and rack length, resolving the trade-off between take-up capacity and device size.

Spiral inside end moves radially within an engagement groove to absorb load and prevent spring buckling.