The present invention concerns a supporting and locking system (S) for a tool (C), comprising: a tool (C) having a through inner channel (C); and a supporting and locking device (1) comprising an elongated element (2), having a first end (2a) and a second end (2b), said elongated element (2) being insertable in said through channel (C), coupling means (4) of said supporting and locking device (1) for coupling it to a chassis of a vehicle, said coupling means (4) being arranged on said first end (2a); said system (S) being characterized in that it comprises a locking member (5), arranged on said second end (2b) of said elongated element (2), that cannot be uncoupled from said elongated element (2), said locking member (5) being adapted to lock said tool (C) when said elongated element (2) is inserted in said through channel (C).

The present invention concerns a supporting system (S) for a spare tire (R) for a vehicle, such as a camion, a truck, a trailer, or a semi-trailer and the like, said vehicle being of the type provided at the bottom with a chassis, said system (S) comprising: a supporting structure (1) fixable to the chassis of said vehicle; a sliding structure (2), slidingly coupled with said supporting structure (1), so as to assume a retracted position, where said sliding structure (2) is wholly or partly arranged under said vehicle, and an extracted position, where said sliding structure (2) is wholly or partly extracted from said vehicle; and supporting means (3) rotatably coupled with said sliding structure (2) and suitable to receive said spare tire (R) of said vehicle, said supporting means (3) being capable to move from a rest position, to an operating position, where said spare tire (R) is substantially arranged orthogonally with respect to the ground.