Patent ID: 7967141

Claim:
A device for the automatic and instantaneous detection of movements of an object with respect to a housing containing or capable of containing this object chosen from the introductions of this object into this housing and the extractions of this object from its housing, which comprises a spring system ( 1 ) comprising two symmetrical blades ( 3 , 3 A) each formed by an upper wing ( 5 , 5 A) and a lower wing ( 6 , 6 A) articulated between one another and forming at rest an obtuse angle with each other, wherein these blades are positioned back to back at their articulation ( 4 , 4 A), in that the upper wings are configured to form a housing ( 7 ) for the object and in that the lower wings are connected to one another by a wire ( 8 ) forming a spring which cooperates with a push button ( 11 ), the push button ( 11 ) being capable of moving perpendicularly to a pressure sensor ( 2 ) until said push button ( 11 ) comes into contact with said pressure sensor or is freed from said pressure sensor.