COLLISION PICKUP Russian patent published in 2005 - IPC

FIELD: motion parameter monitoring systems, namely threshold type transducers of shock mechanical energy at automobile and obstacle collision to electric signal for initiating automobile passive safety systems for driver and passenger.

SUBSTANCE: pickup includes elastic system arranged in casing and having compressed by means of spring elastic member of striker in the form of successively joined inertial member, piezoelectric member and striker. The last is mounted with possibility of moving to side of base having concave cylindrical surface. Elastic member is joined at one side with casing and at other side - with inertial member. Symmetry axis of elastic member crosses lengthwise axis of striker. Symmetry axis of cylindrical surface is arranged in motion plane of symmetry axis of elastic member. Constructional parameters of elastic system are selected according to predetermined conditions. Symmetry axis of elastic ember may be normal to lengthwise axis of striker; symmetry axis of concave surface may be parallel relative to symmetry axis of elastic member. The last may be made of electrically conducting material, for example in the form of flat spring being outlet electric terminal.

EFFECT: enhanced stability against transportation vibration and road shocks, lowered possibility of false operation.

7 cl, 4 dwg