A pivoting support assembly with a locking device for an awning arm, of the type comprising:
- a fixed support (10);
- a pivoting body (20) articulately supported on said fixed support (10) such that it can perform a pivoting movement about a pivot axis parallel to that of a winding roller of a canvas of the awning between a retracted position and a service position;
- an arm (30) articulately supported on said pivoting body (20) such that it can rotate between a folded position and an extended position;
- an adjustable stop (40) for limiting said pivoting movement of the pivoting body (20), thus determining the degree of inclination of the awning in said service position;
- and locking means linked to the movement of the arm (30) for locking the pivoting body (20) in its service position when the arm is in its extended position, said locking means comprising a locking member (50) movable between an inactive position, in which said locking member (50) does not interfere with said adjustable stop (40), and a locking position, in which the locking member (50) locks the adjustable stop (40) with respect to the pivoting body (20) when the latter is in its service position, the adjustable stop (40) has a circumferential groove (43) and a grip element (44) configured to be gripped by a rotating driving tool to adjust the position thereof, and thus said degree of inclination of the awning;
- said locking member (50), when it is in its locking position, is inserted into said circumferential groove (43) of the adjustable stop (40) such that said grip element (44) is accessible and the adjustable stop (40) can be rotated but cannot be axially moved with respect to the pivoting body (20);
- said adjustable stop (40) comprises a rod (41) connected to the fixed support (10) such that it can pivot about a stationary pin (60) parallel to said pivot axis and slidingly passed through a transverse hole (71) formed in a mobile pin (70) rotatably installed in a housing (21) of the pivoting body (20), and a stop head (42) connected to said rod on one side of said mobile pin (70) opposite said stationary pin (60);
- said stop head (42) is housed in a bell mouth (72) of said hole (71) formed in said mobile pin (70) when the pivoting body (20) is in the service position;
- and the circumferential groove (43) of the stop head (42) is aligned with an axial hole (73) formed in said mobile pin (70) when the stop head (42) is housed in said bell mouth (72), characterized in that said locking member (50) comprises a retaining portion (51) housed such that it can slide along said axial hole (73) of the mobile pin (70) between the inactive position, in which said retaining portion (51) is removed from the circumferential groove (43) of the adjustable stop (40), and the locking position, in which said retaining portion (51) is inserted into the circumferential groove (43) of the adjustable stop (40).