JPH0923999A - Vacuum cleaner without exhaust outlet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the exhaust of a vacuum cleaner, to reduce the troublesomeness of opening and closing a window for ventilation, to make the vacuum cleaner the sanitary one for not making a user inhale fine dust and to improve the effect of cleaning. SOLUTION: The exhaust from a vacuum cleaner body 1 is passed through an air collection port 15 and a pipe 6 for sending air, led to an intake tool 10 through the air sending side of a hose 8 and an extension pipe 9 in which a partition 11 is put, blown to a floor surface, sucked again with floated dust and sent through the suction side of the extension pipe 9 and the hose 8 to the body 1 and the air is circulated. It is preferable to use an intake tool or the like provided with a stop valve 12 for closing an opening part together when it is not closely stuck to the floor surface.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner which does not emit exhaust gas and is characterized in that exhaust gas from a vacuum cleaner body is returned to a suction tool through a hose and an extension tube.

[0002]

2. Description of the Related Art In a conventional vacuum cleaner, dust and air sucked from a suction tool is sent to a paper pack to collect the dust, and the air is filtered by a filter to remove fine dust and then enter the room from the rear of the main body. Had been discharged. However, since the filter cannot completely remove fine dust, and the flow of discharged air further winds up dust remaining in the room, open the window for ventilation when using the vacuum cleaner. I had to do it. In order to make up for this drawback, a method of leading the exhaust air to the outside with a hose has been considered, but handling of a long hose is troublesome, and the window must be opened, albeit slightly, to expose the end of the hose to the outdoors. In addition, there is a case in which dust and air are moved through a pipe installed in the floor or wall to collect and exhaust dust under the floor, which is called a central cleaner, but it has the drawback of increasing installation costs. .

[0003]

SUMMARY OF THE INVENTION The present invention intends to simply eliminate the exhaust of the electric vacuum cleaner and use the energy wasted for the exhaust for the original purpose of cleaning. .

[0004]

For this purpose, an inventor has invented a conventional method for returning exhaust gas from a main body to a suction tool again through a hose and an extension pipe, and then spraying the exhaust gas to a floor surface and sucking it together with floating dust. According to this method, air circulates through the vacuum cleaner body, the suction tool, and the floor surface, and is not discharged indoors. A hose (which has flexibility) and / or an extension pipe (which does not have flexibility) is used as a method for returning the exhaust gas from the main body to the suction device, but it is desirable to use one hose It is convenient to use an internal partition as shown in FIG. As a method of partitioning, other than the method of dividing it from the center as shown in FIG. 1, a method of passing a narrow hose or extension tube through a hose or extension tube, or a method of bundling two extension tubes or hoses is also possible. is there. . When the suction device is separated from the floor surface, exhaust air may come out inside the room.If the suction device is not in close contact with the floor surface, install an opening / closing valve to close the opening of the suction device, or make a close contact with the floor surface. It is desirable to install a mechanism that turns on or off the fan or motor in conjunction with.

[0005]

The present invention eliminates the exhaust of the vacuum cleaner.
Further, by blowing the exhaust gas to the floor surface, the energy which has been conventionally wasted can be effectively used, and dust that is difficult to remove can be blown away.

[0006]

EXAMPLES Examples are shown in the drawings. As shown in FIG. 1, the air pushed out from the fan 4 is collected by the air collecting port 15 at the rear of the main body as shown by the arrow, and is divided from the lower air supply pipe 6 to the center.
1 through the hole 7 at the end of the hose 8 into which the hose 8 enters, and also into the suction tool 10 via the air supply side of the extension pipe 9 also containing the partition 11. Next, the partition 11 of the suction tool 10
At the opening (closed in FIG. 1) from the air supply side, dust is blown to the floor surface and dust is blown away, and at the same time, suction is performed from the suction side, the extension tube 9 and the suction side of the hose 8 and the paper pack 2 Enter After the dust is collected in the paper pack, it is circulated again through the filter 3 and the fan 4. In FIG. 1, a power source, a cord, etc. are omitted. Details of the suction tool are shown in FIGS. 2, 3, and 4. 2 shows the structure of the suction tool, FIG. 3 shows the case where the suction tool is separated from the floor surface, and FIG. 4 shows the case where the suction tool is in close contact with the floor surface. When it is separated from the floor, the opening / closing valve 12 is pressed against the bottom of the suction tool by the spring 14 and the opening is closed so that the exhaust gas circulates internally and does not go outside. Open / close valve 12 when closely attached to the floor
Since the projections 13 at both ends of the are pushed to the floor surface and the on-off valve 12 is pushed up to open the opening, the circulating air hits the floor surface for cleaning.

[0007]

According to the present invention, when an electric vacuum cleaner is used, there is no exhaust and it is hygienic, and there is no need to open and close windows for ventilation, which is particularly troublesome during heating and cooling. Is reduced. Furthermore, by blowing the exhaust air to the floor surface, the cleaning effect is further enhanced. Also, since no air is sucked in from the outside, the suction tool does not stick to the floor surface and cleaning can be done easily with a light force.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing one embodiment of the present invention.

FIG. 2 is a perspective view in which a part of the component of the present invention is cut away.

FIG. 3 is a cross-sectional view of the component of the present invention.

FIG. 4 is a cross-sectional view of a component of the present invention.

[Explanation of symbols]

 1 Vacuum cleaner body 2 Paper pack 3 Filter 4 Fan 5 Motor 6 Air supply pipe 7 Hole 8 Hose 9 Extension tube 10 Suction tool 11 Partition 12 Open / close valve 13 Protrusion 14 Spring 15 Air intake port

Claims (4)

[Claims] 1. A vacuum cleaner body having an air intake port and / or an air supply pipe for recirculating exhaust gas from the vacuum cleaner body. 2. A hose and / or extension tube having a partition, in which an air supply side for sending exhaust gas from the main body of the electric vacuum cleaner to a suction tool and a suction side for sending dust sucked by the suction tool to the main body are integrated. 3. A suction tool for an electric vacuum cleaner, which is provided with an opening / closing valve that opens when it comes into close contact with a floor surface and closes when it comes apart. 4. A suction tool for an electric vacuum cleaner having a mechanism interlocking with a fan or a motor so as to "enter" when it comes into close contact with the floor surface and "cut" when it comes apart.