Patent ID: 6685233
Filing Date: 2004-02-03
Classification: A47L,F16L,Y10S

Abstract:
A suction hose assembly for an upright type vacuum cleaner, comprising:a flexible hose having an end of the flexible hose connected to an air inlet of a cleaner body; a suction pipe having an end of the suction pipe connected to the other end of the flexible hose, and the other end of the suction pipe connected to an extension hose of a suction brush; connection means for movably engaging the suction pipe to the flexible hose, so that the suction pipe can rotate relative to the flexible hose in a rotational direction, the connection means comprising: at least one connection protrusion formed on an outer circumference of the end of the suction pipe that is connected to the flexible hose; at least one corresponding connection groove formed on an inner circumference of the end of the flexible hose that is connected to the suction pipe, to receive each of the at least one connection protrusion of the suction pipe; and at least one circumferentially extending guide protrusion provided to be positioned between a contact surface of the suction pipe defined adjacent the at least one connection protrusion, and a contact surface of the flexible hose defined adjacent the at least one connection grooves so as to reduce the contact area between the circumferential contact surfaces of the suction pipe and the flexible hose, thereby permitting the flexible hose to be easily rotatable in a rotational direction relative to the suction pipe.