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Electric vacuum cleaner

a vacuum cleaner and electric technology, applied in the direction of cleaning filter means, cleaning equipment, separation processes, etc., can solve the problem of insufficient cleanliness and achieve the effect of improving cleanliness

Inactive Publication Date: 2008-03-13
TOSHIBA TEC KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0007]In accordance with the present invention, the switch means provides communication between the auxiliary air passage and the suction side of the electric blower with fine dust removed from the filter by the dust removing means being received by the dust receiving section, so that air is sucked from the outside-air intake opening into the electric blower through the dust receiving section and dust collecting section, which allows the fine dust collected in the dust receiving section to be trapped in the dust collecting section, resulting in improved cleanliness.

Problems solved by technology

However, the above-described electric vacuum cleaner suffers from a problem in that the fine dust removed from the pleated filter is collected below the pleated filter, resulting in insufficient cleanliness.

Method used

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Embodiment Construction

[0019]The configuration of an electric vacuum cleaner according to an embodiment of the present invention will hereinafter be described with reference to FIGS. 1 to 11.

[0020]In FIG. 11, numeral 1 denotes a vacuum cleaner main body. The vacuum cleaner main body 1 is a so-called canister-type electric vacuum cleaner travelable on the floor. The vacuum cleaner main body 1 includes a main body case 4 having a lower case 2 with the upper side thereof being slanted downward from the rear toward the front and opened upward and a cover body 3 covering the lower case 2 from above. There are provided an electric blower chamber 6 with an electric blower 5 housed therein and a main body dust collecting chamber 8 openable upward through the cover body 3 to attach / detach a dust collecting unit 7, respectively, in the rear and front parts of the main body case 4, the chambers being partitioned by a partition wall 9.

[0021]Then, a main body suction port 11 communicable with the suction side of the e...

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Abstract

Switch means switches air passages to provide communication between an auxiliary air passage and the suction side of an electric blower with fine dust removed from a pleated filter by a rotating body being received by a dust receiving section. Air is sucked from an outside-air intake opening into the electric blower through the dust receiving section and a fine dust filter in a dust collecting section unit, which allows the fine dust collected in the dust receiving section to be trapped in the fine dust filter, resulting in improved cleanliness.

Description

INCORPORATION BY REFERENCE[0001]The present application claims priority under 35 U.S.C. §119 to Japanese Patent Application No. 2006-244277 filed on Sep. 8, 2006. The content of the application is incorporated herein by reference in its entirety.FIELD OF THE INVENTION[0002]The present invention relates to an electric vacuum cleaner including dust removing means adapted to come into contact with a filter to remove dust that is trapped in the filter.BACKGROUND OF THE INVENTION[0003]Conventionally, such kinds of electric vacuum cleaners are equipped with a vacuum cleaner main body with an electric blower housed therein as shown in Japanese Laid-Open Patent Publication No. 2004-358135, for example. In the vacuum cleaner main body, there are provided a dust collecting section for trapping dust that is sucked therein through the action of a negative pressure generated by driving the electric blower and a circular pleated filter positioned on the downstream side of the dust collecting sect...

Claims

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Application Information

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IPC IPC(8): A47L11/24
CPCA47L9/122A47L9/20B01D46/521B01D46/0075B01D46/10B01D46/0056B01D46/76A47L9/10
Inventor TANAKA, MASATOSHITAKEMOTO, RITSUOTSUCHIYA, YOSHIHIROSUZUKI, HITOSHI
Owner TOSHIBA TEC KK