Patent ID: 7243756

Claim:
An earth moving machine comprising a vehicle ( 2 ) with a front part ( 3 ) and a rear part ( 4 ) and with a maneuvering position ( 5 ) for an operator ( 6 ); a working device ( 10 ) mounted on the rear part ( 4 ) of the vehicle ( 2 ); a seat ( 14 ) rotatably attached to the vehicle ( 2 ) according to a vertical axis of rotation at the maneuvering position ( 5 ) and being able to rotate between a front position in which it is facing the front part ( 3 ) of the vehicle ( 2 ) and a rear position in which it is facing the rear part ( 4 ) of the vehicle ( 2 ); vehicle ( 2 ) driving means ( 15 ) attached to the vehicle ( 2 ) at a zone in front of the seat ( 14 ) when the seat is in the front position; working device ( 10 ) movement means ( 19 ) attached to the vehicle ( 2 ) at a zone in front of the seat ( 14 ) when the seat is in the rear position; wherein the earth moving machine comprises a sensor ( 22 ) connected to the machine to detect a position of the seat and enabling means operatively connected to the sensor ( 22 ) and to the movement means ( 19 ), for enabling operation of the movement means ( 19 ) at least when the seat ( 14 ) is in the front and rear positions, and for inhibiting operation of the movement means when the seat ( 14 ) is in at least one intermediate position between the front and rear positions, so that, during seat ( 14 ) rotation, at least a front enabling zone ( 23 ) and a rear enabling zone ( 24 ) are detected, in which the movement means ( 19 ) are enabled, and at least one side inhibit zone ( 25 ) in which operation of the movement means ( 19 ) is inhibited.