US20040117940A1

US20040117940A1 - Vacuum cleaner

Info

Publication number: US20040117940A1
Application number: US10/392,233
Authority: US
Inventors: Dong Kim
Original assignee: C3i Co Ltd
Current assignee: C3i Co Ltd
Priority date: 2002-12-24
Filing date: 2003-03-18
Publication date: 2004-06-24
Also published as: KR20040056525A; JP2004202185A

Abstract

Disclosed is a vacuum cleaner capable of collecting at one place external air absorbed in the interior of the main machine through the absorption motor, exhausting the collected external air using strong blasting force. Usually, in case that dusts exist on the corner section or the gap section upon cleaning of the bottom part with use of the vacuum cleaner, a user could not bring the absorption nozzle close to the dusts accumulated section and sucking force does not reach that dust accumulated section, whereby the dust gets difficult to wipe out. Therefore, the vacuum cleaner has the closed space part in the internal rear part of the main machine in which the absorption motor is installed, and has, in the closed space part, the exhausting hole to which the blasting nozzle is joined in a free attaching and detaching manner. Thanks to such construction, the vacuum cleaner easily eliminates dusts by blowing down dusts accumulated on the corner section or the gap section, and sprays cleaning water using strong pressure in case that the spraying container is joined to the entry side of the exhausting hole, so that the bottom portion is more effectively cleaned.

Description

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a vacuum cleaner capable of collecting at one place external air absorbed in the interior of the main machine through the absorption motor, exhausting the collected external air using strong blasting force.

2. Description of the Related Art

In general, the vacuum cleaner absorbs dusts together with external air by making the internal front part of the main machine vacuum state using the absorption motor installed in the internal rear part of the main machine. At the moment, dusts included in the external air absorbed by the absorption motor are accumulated in the dust filtering net or the dust bag, and the air devoid of the dusts is exhausted to the outside through the air exhausting hole formed on the internal rear part of the main machine.

Usually, in case that dusts exist on the corner section or the gap section upon cleaning of the bottom part with use of the vacuum cleaner, a user could not bring the absorption nozzle close to the dust accumulated section and sucking force does not reach that dust accumulated section, whereby the dust gets difficult to wipe out.

In the meantime, the Korean Utility Model Publication No. 20-0295799 discloses a multifunction vacuum cleaner, wherein a multifunction box for receiving a variety of materials such as powder for a fire extinguisher for putting out a fire, water, etc., is installed in a blasting path, and an on/off valve is installed in the blasting path connected with the multifunction box.

Such multifunction vacuum cleaner exhausts the fire extinguishing powder or water contained in the multifunction box, to the outside, performing function of a fire extinguisher or a sprinkler, by controlling the on/off value for opening or closing the blasting path connected with the multifunction box by means of a separate switch. But there does not exist function of improving cleaning efficiency by blowing down the dusts accumulated on the corner section or the gap section, to the outside.

Also, the Korean Utility Model Publication No. 20-0205450 discloses a vacuum cleaner capable of blowing down dusts on the bottom portion and absorbing the same simultaneously, by installing a tube of a small diameter in the interior of the absorption pipe and by guiding the air discharged from the absorption motor to this tube of a small diameter.

But, as this vacuum cleaner simultaneously performs blasting operation and absorption operation at the terminal part of the absorption pipe, the dusts accumulated in the bottom portion is not absorbed in but, instead, scattered around due to blasting force, so that cleaning efficiency is rather lowered.

SUMMARY OF THE INVENTION

To solve the above-indicated problems, it is, therefore, an object of the present invention to provide a vacuum cleaner capable of improving cleaning efficiency by absorbing dusts through the absorption port mounted on the front part of the main machine after blowing down the dusts accumulated in the corner section or the gap section, to the outside using air pressure discharged to the rear part of the main machine of the vacuum cleaner.

BRIEF DESCRIPTION OF THE DRAWINGS

The above objects, features and advantages of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings, in which: [0011]
FIG. 1 is a perspective view of an embodiment of the present invention; [0012]
FIG. 2 is a longitudinal, cross-sectional view of the above embodiment of the present invention; [0013]
FIG. 3[0014] a is a cross-sectional view of a crucial part for a status where the second exhausting hole is closed in the above embodiment of the present invention; and
FIG. 3[0015] b is a cross-sectional view of a crucial part for a status where the second exhausting hole is opened in the above embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

A preferred embodiment of the present invention will now be described with reference to the accompanying drawings. In the following description, same drawing reference numerals are used for the same elements even in different drawings. The matters defined in the description such as a detailed construction are nothing but the ones provided to assist in a comprehensive understanding of the invention. Thus, it is apparent that the present invention can be carried out without those defined matters. Also, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. [0016]
In order to realize the foregoing object, the present invention has a closed space part in the internal rear part of the vacuum cleaner to which external air is absorbed through the absorption motor, and has an exhausting hole to which the blasting nozzle is joined, in the closed space part. [0017]
Namely, as shown in the preferred embodiment of the present invention with reference to FIG. 1 through FIG. 3[0018] b, the present invention in the vacuum cleaner 10, wherein the absorption motor 12 is provided in the internal rear part of the main machine 11 and the dust filtering net 13 is provided in the internal front part of the main machine 11, includes a closed space part 15 prepared in the internal rear part of the main machine 10 in which the absorption motor 12 is installed, and an exhausting hole 16 to and from which a blasting nozzle 17 is freely attached and detached, in the closed space part 15.
According to the embodiment shown in the drawings, a joining [0019] pipe 18 is prepared in an entry side of the exhausting hole 16, and a spraying container 19 for exhausting solution contained in the spraying container, to the outside through the exhausting hole 16 using exhausting pressure discharged from the exhausting hole 16, is mounted in this joining pipe 18 in a free attaching/detaching manner, and additionally, a plurality of second exhausting holes 20 is formed on an outer surface of the closed space part 18, and a shutter plate 21 having, in the front part, a connecting hole 22 in response to the second exhausting hole 20, is installed in freely movable manner in right and left directions.
The [0020] reference numerals 14 and 23 stand for an absorption fan and a spray connecting pipe, respectively.
According to the present invention having the foregoing construction, external air absorbed through the [0021] absorption motor 12 is exhausted only to the exhausting hole 16 of the closed space part 15 in case that the second exhausting hole 20 is closed by the shutter plate 21 as shown in FIG. 3a, so that strong blasting force is obtained. The present invention blows down dusts accumulated on the corner section or the gap section, to the appropriate place for absorption using the strong wind discharged from the blasting nozzle 17, effectively eliminating the dusts.
Also, according to the present invention, cleaning water in the spraying [0022] container 19 is sprayed together with strong wind by the pressure of the air discharged from the exhausting hole 16 in case that the spraying container 19 containing cleaning water, etc., is joined to the joining pipe 18 prepared in the entry side of the exhausting hole 16, whereby the outer surface or inner bottom portion of a car is possibly cleaned.
In the meantime, in case that blasting force through the [0023] exhausting hole 16 is not used, the blasting nozzle 17 could be separated, and if, as shown in FIG. 3b, the shutter plate 21 is moved to one side so that the second exhausting hole 20 may be opened, then the air in the closed space part 15 could be exhausted to the outside through a plurality of the exhausting holes 20, whereby load of the absorption motor 12 is reduced.
As is apparent from the foregoing, the present invention has the closed [0024] space part 15 in the internal rear part of the main machine 11 in which the absorption motor 12 is installed, and has, in the rear portion of the closed space part, the exhausting hole 16 through which strong wind is exhausted. Thanks to such construction, the present invention easily eliminates dusts by blowing down dusts accumulated on the corner section or the gap section, and sprays cleaning water using strong pressure in case that the spraying container 19 is joined to the entry side of the exhausting hole 16, so that the bottom portion is more effectively cleaned.
While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. [0025]

Claims

What is claimed is:

1. A vacuum cleaner such that an absorption motor is mounted in an internal rear part of a main machine and a dust filtering net is mounted in an internal front part of the main machine, the vacuum cleaner comprising:

a closed space part provided in an internal rear part of a main machine; and

an exhausting hole to and from which a blasting nozzle is freely attached and detached, provided in a rear part of the closed space part.

2. The vacuum cleaner according to claim 1, wherein a joining pipe is prepared in an entry side of the exhausting hole, and a spraying container for exhausting solution contained in the spraying container, to the outside through the exhausting hole 16 using exhausting pressure discharged from the exhausting hole 16, is mounted in the joining pipe in a free attaching and detaching manner.

3. The vacuum cleaner according to claim 1 or claim 2, wherein a plurality of second exhausting holes is formed on an outer surface of the closed space part, and a shutter plate having, in a front part, a connecting hole in response to the second exhausting hole, is installed in a freely movable manner in right and left directions.