VORRICHTUNG ZUM AUFPUMPEN VON LUFTREIFEN

摘要

System for inflating tyres comprised of a pressure air supply apparatus with a series of push-buttons (2) for different pressures and completed with a series of collars (6) which may be mounted on the outside of the valve of the tyre with identification on characteristics which match those of one of the push-buttons. The pressure air supply apparatus includes a control unit (12) which acts on a pressure inlet electrovalve (93) or on a pressure discharge electro-valve (95), said control unit (12) having an amplifier (14), a transducer (13), a converter (15) and a zero adjusting circuit formed by to potentiometers (16). Two air supply hoses (9) are each fitted at their ends with a mouthpiece (10) terminated by clamping elements which tend to move towards one of the inclined grooves (20) through the action of a pushing element (22) biased by a spring (23).