Electric vacuum cleaner and cyclonic dust collecting apparatus
First Claim
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1. An electric vacuum cleaner comprising:
- a main body including an electric fan incorporated therein; and
a dust collecting apparatus removable from the main body, wherein the dust collecting apparatus comprises a suction port, a cyclonic flow path for swirling air sucked from the suction port to separate dust from the air by a centrifugal force, a dust collecting chamber in which the separated dust is collected, an air outlet port provided in a wall of the dust collecting chamber for discharging the air sucked from the suction port, and a filter attached to the air outlet port, the main body has a wall opposed to the wall of the dust collecting chamber and having an opening smaller than the air outlet port in opposed relation to the air outlet port for feeding the air downstream by the electric fan, the air outlet port has a region opposed to the opening and a region not opposed to the opening, and a guide passage is provided for guiding air discharged from the region of the air outlet port not opposed to the opening toward the opening.
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Abstract
In an inventive electric vacuum cleaner, a filter 20 through which air discharged from an air outlet port 19 is passed is provided on a rear face of a casing 18 of a cyclonic dust collecting apparatus 7, and held by a filter holder 18B. A rear face of the filter 20 is spaced from vertical ribs 32A of the filter holder 18B to define a guide passage 35 for guiding air discharged from a portion of the air outlet port 19 not opposed to an opening 33 through the filter 20 toward the opening 33. The guide passage 35 allows the air to pass through the portion of the air outlet port 19 not opposed to the opening 33.
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Citations
20 Claims
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1. An electric vacuum cleaner comprising:
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a main body including an electric fan incorporated therein; and
a dust collecting apparatus removable from the main body, wherein the dust collecting apparatus comprises a suction port, a cyclonic flow path for swirling air sucked from the suction port to separate dust from the air by a centrifugal force, a dust collecting chamber in which the separated dust is collected, an air outlet port provided in a wall of the dust collecting chamber for discharging the air sucked from the suction port, and a filter attached to the air outlet port, the main body has a wall opposed to the wall of the dust collecting chamber and having an opening smaller than the air outlet port in opposed relation to the air outlet port for feeding the air downstream by the electric fan, the air outlet port has a region opposed to the opening and a region not opposed to the opening, and a guide passage is provided for guiding air discharged from the region of the air outlet port not opposed to the opening toward the opening. - View Dependent Claims (2, 3, 4)
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6. An electric vacuum cleaner comprising:
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a main body including an electric fan incorporated therein; and
a dust collecting apparatus removable from the main body, wherein a cyclonic dust collecting apparatus and a disposable dust collecting apparatus are selectively usable as the dust collecting apparatus, the cyclonic dust collecting apparatus comprising a suction port, a cyclonic flow path for swirling air sucked from the suction port to separate dust from the air by a centrifugal force, a dust collecting chamber in which the separated dust is collected, an air outlet port provided in a wall of the dust collecting chamber for discharging the air sucked from the suction port, and a filter attached to the air outlet port, the disposable dust collecting apparatus comprising a mouth cardboard and a filter bag attached to the mouth cardboard, and the main body has an accommodating portion for accommodating either of the cyclonic dust collecting apparatus and the disposable dust collecting apparatus, the accommodating portion having a fixing member for fixing the disposable dust collecting apparatus when the disposable dust collecting apparatus is accommodated in the accommodating portion. - View Dependent Claims (5, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A dust collecting apparatus to be removably mounted in an electric vacuum cleaner, comprising:
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a hollow casing having a suction port and an air outlet port;
a cyclonic flow path defined in the casing for swirling air sucked from the suction port to separate dust from the air by a centrifugal force;
a dust collecting chamber defined in the casing for collecting the separated dust;
the air outlet port being formed in a wall of the dust collecting chamber as having a great size;
a filter attached to the air outlet port; and
a leg provided integrally with the casing for keeping the casing in a predetermined upright state when the dust collecting apparatus is removed from the electric vacuum cleaner. - View Dependent Claims (18, 19, 20)
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Specification