Triggering device and active system used for automobile rear-end collision safety protection measures
A technology of safety protection device and trigger device, which is applied in the direction of vehicle safety arrangement, pedestrian/occupant safety arrangement, vehicle components, etc., can solve the problems of poor stability and reliability, and high cost of trigger device, and achieve high stability and reliability. The effect of low cost and damage avoidance
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[0029]As a preferred embodiment of the present invention: the trigger device is also provided with a limit plate 7; the limit plate 7 is provided with a through hole 7a, the limit plate 7 is fixed in the inner cavity of the shell 1, and the trigger block 2 is located between the limit plate 7 and the shell. Between the rear end position 12 of 1, the rear end of the spring 3 passes through the through hole 7a of the limiting plate 7 and is fixed to the trigger block 2.
[0030] Thus, if image 3 As shown, when the car has a frontal collision, the body 5 of the car is subjected to a frontal collision force F in the direction of the rear Q , the body 5 of the car and the casing 1 of the trigger device are subjected to a frontal collision acceleration a in the backward direction Q The action decelerates instantaneously, and because the stretching degree of the spring 3 cannot change abruptly at the moment of the front collision, the trigger block 2 moves forward relative to the s...
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