Abstract: A detection terminal including a piezoelectric transducer emitting and receiving ultrasound waves via a diaphragm to which it is secured, said diaphragm being arranged opposite an opening of a housing and connected to said housing by connection mechanism. According to the invention, the diaphragm is connected to a rigid structure which enables same, when subjected to pressure, to undergo a contraction limited to the space provided for said purpose, in the opening of the housing, determined by a position of the structure abutting against a surface of the housing opposite the opening.

Abstract: The invention relates to a money-operated machine, comprising a housing made from an extruded profile (1) and having a compartment that houses a money acceptor and a compartment that houses a money box in communication with the money acceptor. According to the invention, in order to protect the collected money, the money box is housed in a strongbox consisting of metal sheets (10, 11, 12, 13), which are fitted into each other by indentations (15, 16) cut out on an edge of the metal sheets, and is attached to the extruded profile (1) by the cut-out indentations (15, 16) being inserted into grooves or notches (3, 5) of the extruded profile (1) acting as slides.