Method of linkage and locking of connecting coupling member to nozzle base of a vacuum cleaner

摘要

An upright vacuum cleaner (10) includes an upper housing (12) and a nozzle base (14). An underside (20) of the nozzle base includes a main suction opening (26) formed therein which is in fluid communication with the upper housing via a hose assembly (28). The hose assembly is coupled to the nozzle suction opening via a coupling member (40). The coupling member is substantially cylindrical in shape and is dimensioned to be inserted into a receiving portion (42) of the nozzle base. The coupling member includes a first tapered end (60) dimensioned to be frictionally fit within a suction inlet (44) of the receiving portion. A second end (62) of the coupling member is configured to be supported on a rear wall (50) of the receiving portion. A quarter turn thread segment (72) is disposed on the coupling member's peripheral surface. Upon rotation of the coupling member, the thread segment threadingly cooperates with the rear wall of the receiving portion so that the coupling member is urged into a friction fit seal with inlet opening (44). A finger (70) is provided on the peripheral surface of the coupling member to assist in rotating the coupling member.