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SRC-10 < SYSTEM DESCRIPTION > COMPONENT PARTS PRE-TENSIONER MECHANISM • In a frontal collision that exceeds the specified limit, air bag sensor unit detects the collision, transmits an electrical signal to gas gen- in manifold case, and activates gas generator. Gas is generated. • The pressure of the generated gas moves the ball inside of pipe . The ball then presses ring gear which is engaged to the pin- ion gear . • The rotation of the ring gear rotates the shaft in the retracting direction of the seat belt. Seat belt is retracted. LOAD LIMITER (ELR) MECHANISM • In a collision, when ELR shaft is locked, a load caused by impact is applied to webbing • When a load is continuously applied to webbing and reaches or exceeds the specified level, a rotating force is applied to ELR shaft and bobbin . ELR shaft twists. • As ELR shaft is twisted, webbing is pulled out while keeping a cer- tain level of tension and easing the impact to the chest of front seat Double pre-tensioner seat belt INFOID:0000000010513118 DESCRIPTION The system combines lap pre-tensioner mechanism for lumbar seat belt and pre-tensioner seat belt with load LAP PRE-TENSIONER MECHANISM • In a frontal collision that exceeds the specified limit, air bag sensor unit detects the collision, transmits an electrical signal to gas generator in pipe, and activates gas generator. Gas is generated. The pressure of the generated gas moves the piston inside of pipe toward pipe front direction, and retracts wire. • Lap anchor is installed to end of the wire and end of seat belt is connected to lap anchor. The wire therefore retracts seat belt. ELR shaft (torsion bar) Bobbin Manihold case Lock portion Ring gear Pinion gear Gas generator Spring Ball Pipe Pre-tensioner mechanism cross sec- ELR mechanism portion cross sec- Pre-tensioner mechanism portion Load limiter portion JMHIA0167ZZ JMHIA0168ZZ JMHIA0169ZZ |