| 摘要 |
An inertia sensor especially for seat belt retractors including a ball (1) as the inertia part, an opening (11) extending through the ball, and a holding pin (3) extending through the hole and into a hole (22) in a supporting ring (27) on which the ball rests in circular line contact so as to be tiltable in any direction. The pin 3 which is of a plastics material, has a mushroom shaped head 31 which cooperates with a hemispherical surface 43 of a trigger arm pivoted at 41 to raise the tip 42 of the arm to engage the ratchet wheel of an inertia reel seat belt when the sensor is subjected to acceleration. <IMAGE> |
