Suction hose assembly for an upright type vacuum cleaner
First Claim
1. 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.
1 Assignment
0 Petitions
Accused Products
Abstract
A suction hose assembly for an upright type vacuum cleaner having an air inlet connected to one end of a flexible hose and a suction pipe at the other end. A connection portion movably connects the suction pipe to the flexible hose allowing the suction pipe to rotationally rotate relative to the flexible hose, including a pair of connection protrusions preferably formed on one end of either the suction pipe or flexible hose, and spaced from each other by a predetermined distance, a pair of connection grooves formed on one end of whichever the flexible hose or suction pipe that the connection protrusions are not formed on, to receive the pair of connection protrusions, and at least one guide protrusion provided between a contact surface defined between the connection protrusions and a contact surface defined between the connection grooves, to reduce area of contact defined between the contact surfaces.
17 Citations
11 Claims
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1. A suction hose assembly for an upright type vacuum cleaner, comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A suction hose assembly for an upright type vacuum cleaner, comprising:
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a flexible hose with an end of the flexible hose connected to an air inlet of a cleaner body;
a suction pipe with an end of the suction pipe connected to the other end of the flexible hose, and the other end of the suction hose 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 slide on the flexible hose in a rotational direction, the connection means comprising;
a pair of connection protrusions formed on an inner circumference of the end of the flexible hose that is connected to the suction pipe, and spaced apart from each other by a predetermined distance;
a pair of connection grooves formed on an outer circumference of the end of the suction pipe that is connected to the flexible hose, to receive the pair of connection protrusions; and
at least one circumferentially extending guide protrusion provided to be positioned between a contact surface of the flexible hose, defined between the connection protrusions, and a contact surface of the suction pipe, defined between the connection grooves, thereby permitting the flexible hose to be easily rotatable in a rotational direction relative to the suction pipe. - View Dependent Claims (8, 9, 10, 11)
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Specification