Patent ID: 11963486
Assignee: EMAK S.P.A.
Field: Other special machines (Mechanical engineering)
Classification: CPC A | IPC A

Claim 0:
1. A blower (1) comprising:
a volute (10) for conveying air,
a first tube (15) connected to the volute (10) for conveying,
a second tube (50) adapted for being at least partially inserted in the first tube (15) and slidable therein along a sliding direction (A), and
a fixing system of the second tube (50) to the first tube (15) in at least two different positions along the sliding direction (A) one of which is extracted and one is retracted, wherein said fixing system of the second tube (50) to the first tube (15) comprises:
at least one first eyelet (105) and a second eyelet (110) spaced apart along the sliding direction (A) of the second tube (50) in the first tube (15), made on one among the first tube (15) and the second tube (50),
at least one third eyelet (35) made on the other among the first (15) and the second tube (50), and
a pin (125) adapted for being inserted simultaneously in the third eyelet and in one among the first (105) and the second eyelet (110), wherein the third eyelet (35) is adapted to be arranged in a position coaxial with the first eyelet (105) when the second tube (50) is in the extracted position, and adapted to be arranged in a position coaxial with the second eyelet (110) when the second tube (50) is in the retracted position.