| 摘要 |
The invention relates to a complementary braking system for motor vehicles which consists in coupling, to the vehicle chassis, in front of the axle connecting the front wheels, a device formed by a shaft axle) or two halfshafts axle shafts), on which are coupled individual wheels of small diameter made from a material which has significant ability to grip the paving, said device being articulated by means of a knuckle joint and regulator spring such that it can be folded down when the deceleration boost has to be produced and taken up when the vehicle runs normally, it being possible to use, to actuate this mechanism, any hydraulic or electric means deemed appropriate.
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