VACUUM CLEANER
First Claim
1. A vacuum cleaner comprising:
- an electric air blower;
a dust separator disposed on an upper stream side of the electric air blower for taking air in, which air is sucked by the electric air blower and includes dust; and
a dust collector for accommodating the dust separated by the dust separator,wherein the dust separator includes a whirling airflow air-duct for running the air, which is taken in through a suction port and includes the dust, as whirling airflow, and a dust filter forming at least a part of the whirling airflow air-duct, andwherein the dust filter is surrounded by a space, on which suction force of the electric air blower acts, and an air vent of the dust filter is disposed nearer to the dust collector than to the suction port so that the whirling airflow can be generated toward the dust collector.
2 Assignments
0 Petitions
Accused Products
Abstract
A vacuum cleaner is disclosed, and this cleaner maintains sucking power at a high level while it resists lowering the suction force although it sucks dust. The vacuum cleaner includes a cylindrical dust collecting case which takes air in sucked by an electric air blower and including dust. The case includes a suction port through which the air including dust flows into the case along a tangent line, and a dust collector communicates with the port. A dust filter in the case is placed in an air-duct through which the case communicates with the electric air blower. This structure allows whirling airflow in the case to whirl continuously in the case, so that dust can be removed from the filter even if the dust attaches to the filter. As a result, sucking airflow can be always secured.
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Citations
30 Claims
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1. A vacuum cleaner comprising:
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an electric air blower; a dust separator disposed on an upper stream side of the electric air blower for taking air in, which air is sucked by the electric air blower and includes dust; and a dust collector for accommodating the dust separated by the dust separator, wherein the dust separator includes a whirling airflow air-duct for running the air, which is taken in through a suction port and includes the dust, as whirling airflow, and a dust filter forming at least a part of the whirling airflow air-duct, and wherein the dust filter is surrounded by a space, on which suction force of the electric air blower acts, and an air vent of the dust filter is disposed nearer to the dust collector than to the suction port so that the whirling airflow can be generated toward the dust collector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification