Awning with arms, which comprises: - a rolling-shutter box for containing a rollable cloth, intended to be fixed to a wall and provided with a front opening for the passage of said cloth; - at least two articulated arms, each provided with a first end constrained to said rolling-shutter box and with a second end (10") bearing a front profile mounted thereon, such arms movable between an extended position in which said articulated arms are at least partially extended outside said rolling-shutter box through said front opening, and a retracted position, in which said articulated arms are retracted inside said rolling-shutter box and arrange said front profile to close the front opening of said rolling-shutter box; - at least one tiltable support device, which is placed to connect said rolling-shutter box with a corresponding arm of said articulated arms, and comprises: - a support body mechanically fixed to said rolling-shutter box; - a tiltable body, which rotatably supports said corresponding articulated arm and is rotatably connected to said support body in order to rotate around a first substantially horizontal rotation axis; - an adjustment element constrained to said support body and provided with a stop portion which is inserted in a guide obtained in said tiltable body; said tiltable body being adapted to rotate between at least one upper position, in which said articulated arms are in said retracted position, and at least one lower position, in which said articulated arms are in said extended position and the stop portion of said adjustment element is in abutment against an abutment portion of said tiltable body inside said guide in order to stop the downward rotation of said tiltable body; said awning with arms being characterized in that said support device also comprises a locking body which is rotatably constrained to said tiltable body in order to rotate around a second rotation axis, and is provided with an interception portion and a control portion; said articulated arm, in moving between said retracted position and said extended position, driving said locking body in rotation, by means of the engagement with said control portion, between a non-interference position, in which said interception portion is outside the guide of said tiltable body in order to allow the free passage of said stop portion, and an interference position, in which said interception portion projects into the guide of said tiltable body in said lower position, and is adapted to abut against said stop portion in order to prevent the rotation of said tiltable body towards said upper position. - a rolling-shutter box for containing a rollable cloth, intended to be fixed to a wall and provided with a front opening for the passage of said cloth; - at least two articulated arms, each provided with a first end constrained to said rolling-shutter box and with a second end (10") bearing a front profile mounted thereon, such arms movable between an extended position in which said articulated arms are at least partially extended outside said rolling-shutter box through said front opening, and a retracted position, in which said articulated arms are retracted inside said rolling-shutter box and arrange said front profile to close the front opening of said rolling-shutter box; - at least one tiltable support device, which is placed to connect said rolling-shutter box with a corresponding arm of said articulated arms, and comprises: - a support body mechanically fixed to said rolling-shutter box; - a tiltable body, which rotatably supports said corresponding articulated arm and is rotatably connected to said support body in order to rotate around a first substantially horizontal rotation axis; - an adjustment element constrained to said support body and provided with a stop portion which is inserted in a guide obtained in said tiltable body; said tiltable body being adapted to rotate between at least one upper position, in which said articulated arms are in said retracted position, and at least one lower position, in which said articulated arms are in said extended position and the stop portion of said adjustment element is in abutment against an abutment portion of said tiltable body inside said guide in order to stop the downward rotation of said tiltable body; - a support body mechanically fixed to said rolling-shutter box; - a tiltable body, which rotatably supports said corresponding articulated arm and is rotatably connected to said support body in order to rotate around a first substantially horizontal rotation axis; - an adjustment element constrained to said support body and provided with a stop portion which is inserted in a guide obtained in said tiltable body;