Upright-type electric vacuum cleaner
First Claim
1. An upright-type electric vacuum cleaner comprising:
- a main body case having a chamber accomodating an electrically-operated blower, a bag compartment for accomodating a dust filtering means, a cord reel chamber for accomodating a power supply cord wound onto a cord reel, and a suction port body for accomodating a rotary brush driven by a motor which drives said blower and for tiltably supporting said main body case, wherein said suction port body is constituted by a front frame with a rotary brush mounted thereon and a base frame with rear wheels mounted thereon, hollow bosses of said main body case concentric with a rotary shaft of said blower are pivotally supported on said base frame between said front frame and said base frame by a downwardly open semicircular bearing portion on said front frame and an upwardly open semicircular bearing portion on said base frame.
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Accused Products
Abstract
Disclosed is an upright-type electric vacuum cleaner which comprises a suction port body provided with a rotary brush and a main body case supported tiltably on the suction port body. Improvements are made in details such as the arrangement for supporting the main body case in the suction port body, the arrangements of mounting a handle onto the main body case, the configuration of a main body duct, the arrangement of a rotary brush, the arrangement of a cover of the main body case, and the arrangement of a T-shaped joint for connecting the main body duct and a dust filter means, thereby increasing the strength and rigidity of each of these parts and improving the performance of the vacuum cleaner.
38 Citations
9 Claims
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1. An upright-type electric vacuum cleaner comprising:
- a main body case having a chamber accomodating an electrically-operated blower, a bag compartment for accomodating a dust filtering means, a cord reel chamber for accomodating a power supply cord wound onto a cord reel, and a suction port body for accomodating a rotary brush driven by a motor which drives said blower and for tiltably supporting said main body case, wherein said suction port body is constituted by a front frame with a rotary brush mounted thereon and a base frame with rear wheels mounted thereon, hollow bosses of said main body case concentric with a rotary shaft of said blower are pivotally supported on said base frame between said front frame and said base frame by a downwardly open semicircular bearing portion on said front frame and an upwardly open semicircular bearing portion on said base frame.
- View Dependent Claims (2, 3, 5, 6, 7, 8, 9)
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4. An upright-type electric vacuum cleaner comprising:
- a main body case having an electrically-operated blower chamber, a bag compartment for accommodating a dust filtering means, and a cord reel chamber for accomodating a power supply cord wound onto a cord reel; and
a suction port body for accommodating a rotary brush driven by a motor of said blower and for tiltably supporting said main body case, wherein a main body duct is rotatably connected inside one of a pair of hollow bosses of said main body case to a suction port duct disposed in said suction port body and includes a first cylindrical portion fitting with an inner surface of said hollow boss, a second cylindrical portion having a diameter smaller than that of said first cylindrical portion and engaging with said suction port duct, a first stepped portion in a region where a diameter of the suction port duct abruptly changes abutting against the inner surface of a side wall of said main body case surrounding said hollow boss, and a second stepped portion in a region where a diameter of the suction port duct abruptly changes abutting a partion wall located between said blower chamber in said main body case and said bag compartment.
- a main body case having an electrically-operated blower chamber, a bag compartment for accommodating a dust filtering means, and a cord reel chamber for accomodating a power supply cord wound onto a cord reel; and
Specification