| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a seat belt retractor properly causing a lock operation of seat belt drawing action even during transition from moderate deceleration to rapid deceleration. <P>SOLUTION: An acceleration sensor 100 is provided with: a sensor holder 10 tilted integrally with a seat back S; a sensor case 20 being oscillatably supported by the sensor holder 10 and normally horizontally holding an inertial field supporting surface 23 by oscillating during tilting of the seat back; a ball 30 housed within the sensor case 20 while being mounted on the inertial field supporting surface 23, and displaced from its neutral position upon application of a horizontal acceleration greater than a predetermined value; first and second sensor levers 50 and 40 for operating a lock mechanism by the motion generated during the displacement of the ball 30; a link bar 80 being oscillatably supported by the sensor holder 10 and oscillating in response to a horizontal acceleration smaller than an acceleration to cause oscillation of the sensor case 20; and a lock tooth 16 and a lock lever 70 for locking the sensor case 20 into the sensor holder 10 when the link bar 80 oscillates relative to the sensor case 20. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
