JP2002085298A - Vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vacuum cleaner to be used at general home, which utilizes exhaust air current from an electric blower for cleaning. SOLUTION: The cleaner is provided with a main body 17 incorporating a dust collecting chamber 19 and the electric blower 20, a suction passage 32 for guiding dust to the chamber 19, a hose 36 for guiding exhaust air for blowing the exhaust air 24 from the blower 20 to a surface to be cleaned 41 and a suction tool provided with a suction port and an exhaustion port integrally. The passage 32 and the hose 32 are connected attachably and detachably to/from the tool 31 to form a circulating passage, many ventholes 44 are formed at an inner hose 43 constituting the hose 36, the outer peripheral surface of the hose 43 is covered with an air-permeable nonwoven fabric 45 the outer periphery of which is covered with a hose cover 46 made of an air-impermeable material having many ventholes 47, and exhaust air passed through the inside of the hose 36 is partially discharged to the outside of the cleaner from two kinds of the ventholes to realize noise reduction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner used at home, and more particularly to a reduction in exhaust noise of a vacuum cleaner having a return path of exhaust air from an electric blower.

[0002]

2. Description of the Related Art A conventional vacuum cleaner is disclosed in Japanese Unexamined Patent Publication No. 7-1360.
No. 82 was generally used. This will be described below with reference to FIG.

[0003] In Fig. 7, an electric blower 1 is built in, and a dust collecting bag 2 is disposed above the electric blower 1. The electric blower 1 and the dust collecting bag 2 are provided.
Is housed in a main body cover 4 of the cleaner body 3, and the main body cover 4 is provided with a lid 5 for taking in and out the dust bag 2. The cleaner main body 3 is provided with a handle 6 for movement, and the main body cover 4 is provided with an exhaust port 8 for discharging exhaust air 7 from the electric blower 1 to the outside of the cleaner main body 3. Suction port 1 for sucking dust in the lower part of vacuum cleaner body 3
A suction tool 9 provided with 0 is provided. This suction port 10
And the dust bag 2 are connected to each other by a hose 11 which is a suction channel. The suction tool 9 is provided with an air outlet 13 toward the surface to be cleaned 12, and the air blower 1 is connected to the air outlet 13.
A hose 15 serving as a recirculation path is connected to a part 14 of the exhaust gas from the tank.

In the above configuration, when the electric blower 1 is operated by turning on the power, the exhaust air 7 and its part 14 and the suction flow 16 are generated on the opposite side. The exhaust gas 7 is exhausted to the outside of the cleaner body 3 through an exhaust port 8. Part 1 of exhaust 7
4 is blown from the outlet 13 of the suction tool 9 toward the surface 12 to be cleaned through the hose 15, the dust on the surface 12 to be cleaned is blown up, sucked from the inlet 10 by the suction flow 16, and passed through the hose 11. To collect in the dust collection bag 2.

[0005]

However, in the above-mentioned conventional structure, the exhaust hose 15 and the exhaust port 8 are provided near the electric blower 1, so that the noise from the electric blower 1 itself and the generated exhaust gas 7 are reduced. A part 14 of the noise was a wind noise, and passed directly through the exhaust port 8 and the hose 15, producing a very unpleasant sound.

An object of the present invention is to solve the above conventional problems and to provide a vacuum cleaner with lower noise.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned conventional problems, a vacuum cleaner according to the present invention comprises a main body having a dust collecting chamber and an electric blower, a suction passage for introducing dust to the dust collecting chamber, and a cover. A hose for guiding exhaust air for blowing exhaust air from the electric blower to a cleaning surface, and a suction tool integrally provided with a suction port and an exhaust port, wherein the suction passage and the hose are detachable from the suction tool. The inner hose constituting the hose is provided with a number of ventilation holes, and the outer peripheral surface of the inner hose is covered with a non-woven fabric having air permeability. The hose is covered with a hose cover made of an air-impermeable material having a vent hole, and a part of the exhaust gas having passed through the hose is discharged from the two types of vent holes to the outside of the cleaner.

[0008] With the above-described configuration, the exhaust sound and exhaust noise generated from the electric blower are generated when the exhausted exhaust gas passes through the inside of the hose, passes through the vent hole of the inner hose, and passes through the outer permeable nonwoven fabric. The cutting sound is absorbed. The exhaust gas itself is gently exhausted to the outside by the exhaust pressure from the vent hole of the hose cover made of an impermeable material at the outermost periphery.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to the first aspect of the present invention is directed to a main body having a dust collecting chamber and an electric blower built therein, a suction passage for leading dust to the dust collecting chamber, and a discharge surface from the electric blower for cleaning. A hose that guides exhaust air for blowing, and a suction tool integrally provided with a suction port and an exhaust port are provided, and the suction path and the hose and the suction tool are detachably connected to form a return path. The hose has a sound insulating material on the outer peripheral surface.

With the above-described structure, a recirculation path is formed by an electric blower, a dust collection chamber, a suction passage, a suction tool, a hose, and the like. It is reduced by the sound insulation material.

According to a second aspect of the present invention, the inner hose constituting the hose of the first aspect is provided with a large number of ventilation holes, and the outer peripheral surface of the inner hose is covered with a nonwoven fabric having air permeability, Is covered with a hose cover made of an impermeable material having a large number of air holes on the outer periphery thereof, and a part of exhaust gas passing through the internal hose is exhausted from the two types of air holes.

When the exhaust gas passes through the internal hose according to the above configuration, the exhaust sound and the wind noise are absorbed by the outer non-woven fabric through the ventilation hole of the internal hose, and the exhaust gas is discharged from the outermost impermeable material. Since the air is gently discharged from the air hole of the hose cover, unpleasant noise is reduced.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) FIG. 1 is a sectional view of an essential part of a vacuum cleaner hose according to a first embodiment of the present invention in a state where a hose is detached from a suction tool, and FIG. 2 is a state in which the hose is connected to the suction tool. FIG. 3 is a perspective view of a hose of the vacuum cleaner.

The main body 17 of the vacuum cleaner comprises an outer shell composed of a lower case 21, an upper case 22, and a dust collecting lid (not shown), and has a dust collecting chamber 19 and an electric blower 20 built therein. The chamber 19 is provided in a dust collection case 23. The suction side of the electric blower 20 is airtightly connected to the dust collection case 23, and the exhaust side is open to the lower case 21 side. Dust collection case 23
Communicates with an intake port 26 provided in the main body 17, and the branch pipe 27 is provided with a branch port 28 connected to the intake port 26 and opened on the rear side of the main body 17, and a branch port 29 opened below the main body 17. . On the cleaning surface 41 side of the main body 17, a suction tool 31 having a connection port 30 is provided with a branch port 29 through a suction passage 32.
Is in communication with A lid 34 rotatable about a shaft 33 is provided above the branch pipe 27, and the branch port 28 is normally closed by the lid 34. The lower case 21 has an electric blower 2
Hose 3 is provided with an exhaust port 35 for exhausting exhaust 24 from
6 and the connection port 3 of the suction tool 31
0 is detachably connected to the exhaust flow 24 and the suction flow 4
2 forms a reflux path. A suction port 38 for sucking in dust and a stirrer 39 are provided in the suction tool 31, and an outlet 40 for the exhaust stream 24 directed toward the stirrer 39 is opened (see FIG. 2).

The exhaust flow 24 from the electric blower 20 is
7, through the exhaust port 35 and the hose 36, and through the suction device 3.
The suction flow 4 is discharged together with the dust on the surface 41 to be cleaned, which is discharged from the outlet 40 of the first cleaning device 1 and is lifted by the stirring body 39.
The air is sucked at 2 and collected on the dust collecting chamber 19 side through the suction passage 32. On the outer peripheral surface of the hose 36, a sound insulating material 36a made of non-woven cloth is provided.

With the above configuration, the electric blower 2 in the main body 17 is
When the exhaust stream 24 passes through a hose 36 which is a passage of the exhaust stream 24 on the discharge side when the suction air stream 42 and the exhaust stream 24 discharged from the exhaust pipe 24 are used as a return path through the suction tool 31, the hose 36 bends. Wind noise and exhaust noise in the parts and the like are suppressed by the sound insulating material 36a on the outer peripheral surface of the hose 36,
Part of the excess exhaust stream 24 is gently discharged out of the cleaner from the surface of the hose 36.

(Embodiment 2) FIG. 4 is a sectional view of a main part of a vacuum cleaner for explaining a second embodiment of the present invention, FIG. 5 is a perspective view of the hose, and FIG. 6 is a sectional view of a main part of the hose. .

The inner hose 43 made of vinyl chloride or the like constituting the hose 36 is provided with a large number of air holes 44, and a nonwoven 45 having air permeability is wound around its outer periphery. It comprises a hose cover 46 covered with a vinyl chloride or the like.

As the exhaust stream 24 passes through the hose 36,
In particular, the wind noise generated when passing through a bend or the like is silenced when the exhaust flow 24 passes through the ventilation hole 44 of the internal hose 43 and passes through the nonwoven fabric 45, and only the exhaust flow 24 is quiet from the ventilation hole 47 of the hose cover 46. Is discharged outside the vacuum cleaner.

Further, the hose 36 is detached from the connection port 30 of the suction device 31 and the exhaust stream 24 is directly discharged from the end of the hose 36, and the hose 36 is generated by blowing or guiding dust accumulated in a gap in furniture or the like. Usability is improved because the unpleasant noise that occurs is reduced (see FIG. 4).

[0022]

As described above, according to the present invention, since the exhaust hose has a sound absorbing function and a ventilation function, the exhaust sound and the passing sound of the exhaust gas are reduced, and a quieter vacuum cleaner can be provided.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part of a vacuum cleaner illustrating a first embodiment of the present invention, with a hose removed from a connection port.

FIG. 2 is a sectional view of a main part in a state where the hose is connected to a connection port.

FIG. 3 is a perspective view of a hose of the vacuum cleaner.

FIG. 4 is a sectional view of a main part of a hose of a vacuum cleaner for explaining a second embodiment of the present invention.

FIG. 5 is a perspective view of a hose of the vacuum cleaner.

FIG. 6 is a sectional view of a main part of a hose of the vacuum cleaner.

FIG. 7 is a cross-sectional view illustrating a conventional vacuum cleaner.

[Explanation of symbols]

 17 Body 19 Dust Collection Room 20 Electric Blower 31 Suction Tool 32 Suction Path 36 Hose 36a Sound Insulation Material 43 Internal Hose 44 Vent Hole 45 Non-Woven Fabric 46 Hose Cover 47 Vent Hole

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Norihiro Tsuchiya 1006 Kadoma, Kadoma, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. F-term (reference) 3B006 BA05 BA07 LA08 LA13 LA15 3B057 BA02 BA22

Claims (2)

[Claims] 1. A main body containing a dust collecting chamber and an electric blower,
A suction passage that guides dust to the dust collection chamber, a hose that guides exhaust air for blowing exhaust air from the electric blower to a surface to be cleaned, and a suction tool having a suction port and a discharge port; And the hose is detachably connected to the suction tool to form a return path, and the hose has a sound insulating material on an outer peripheral surface. 2. An internal hose constituting a hose is provided with a large number of air holes, an outer peripheral surface of the internal hose is covered with a nonwoven fabric having air permeability, and further, a large number of air holes are provided on an outer periphery of the nonwoven fabric. The vacuum cleaner according to claim 1, wherein the vacuum cleaner is covered with a hose cover made of an air-impermeable material, and discharges a part of the exhaust gas passing through the internal hose to the outside through the two types of ventilation holes.