JPH07124072A - Vacuum cleaner - Google Patents

Abstract

PURPOSE:To achieve the lowering of operation sounds accurately by making the exhaust port larger and an exhaust path longer being bent more and by passing the exhaust of an electric blower through an exhaust filter tobe made hygienic and scattered to an exhaust port. CONSTITUTION:Flow of air flows into a paper filter 11 passing through a main duct and an extendible hose 55. Dust stays in the paper filter 11 and the flow of air alone enters into an electric blower 12 passing through a suction duct at a suction port. The flow of an exhaust passes through an exhaust filter 69 provided between the electric blower chamber 5 and a scattered exhaust chamber 4 and the exhaust filtered clean is discharged to the scattered exhaust chamber 4. The scattered exhaust chamber 4 is a silencing space covering a dust collection chamber 3 from behind. The flow of exhaust coming from the electric blower chamber 5 positioned below is led to an exhaust port provided on both sides of the body so that it is scattered widely to lower the speed of the flow of exhaust. The impact sound can be reduced substantially. A lid body 14 for closing an opening as takeoff port of the exhaust filter 11 is provided integrally on a dust collection chamber lid body to achieve a lower cost.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an upright type electric vacuum cleaner used in general households.

[0002]

2. Description of the Related Art A conventional vertical vacuum cleaner is disclosed in Japanese Patent Laid-Open No. 58-27.
It had the structure described in Japanese Patent No. 536.
That is, in FIG. 7, the exhaust air of the electric blower is exhausted to the outside mainly through two paths. The first of the paths is a flow path that leads to the exhaust port through the exhaust filter, and most of the exhaust from the electric blower is discharged through this path. The second path is a flow path that leads through the space for housing the cord reel to the cord outlet. This is not limited to the vertical type of the known example, but the canister type vacuum cleaner often has the same structure.

[0003]

In such a structure, the exhaust port through which most of the exhaust air from the electric blower flows out is formed in the vicinity of the electric blower, so that a sufficient noise reduction structure can be formed. However, there was a drawback that it was noisy. Also, in the case of arranging the cord reels, in order to cool the power cord, a part of the exhaust air of the electric blower passes through the space for accommodating the cord reels and is discharged to the outside from the cord outlet. Exhaust gas containing carbon powder is not filtered and is discharged to the outside of the main body, which is not sanitary.

Therefore, the present invention is intended to solve the above-mentioned problems, and an object thereof is to provide a sanitary vacuum cleaner which operates quietly and at low cost.

[0005]

In order to achieve the above object, the present invention provides an exhaust filter in an exhaust passage for guiding exhaust gas discharged from an electric blower to an exhaust port, and an exhaust filter. A lid that closes the opening for taking out the dust collection chamber is provided integrally with the lid of the dust collection chamber that closes the opening of the dust collection chamber, and a cord reel is provided in the exhaust flow path between the exhaust filter and the exhaust port. is there.

[0006]

According to the present invention, the exhaust air of the electric blower is filtered by passing through the exhaust filter, and then the cord reel is cooled and guided to the exhaust port. It is hygienic with no exhaust air discharged, and is filtered immediately after it leaves the electric blower and is dispersed to the exhaust port, making it possible to minimize the area of the expensive exhaust filter and reduce the exhaust port The area can be made large enough, the continuity of the exhaust gas flowing out of the main unit can be sufficiently reduced, and the exhaust passage is configured to cover the dust collection chamber, so the exhaust passage is long and the bent portion of the passage is There are many, and the sound can be reliably reduced, enabling quiet cleaning of the driving noise.

Further, since the lid for closing the opening, which is the outlet of the exhaust filter, is provided integrally with the dust collecting chamber lid, an inexpensive vacuum cleaner can be provided without newly providing a dedicated lid.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIGS.
Will be described with reference to.

The cleaner main body 1 is roughly divided into four spaces, and has an electric component chamber 2 in the upper part, a dust collecting chamber 3 and a dispersion exhaust chamber 4 in the central part, and an electric blower chamber 5 in the lower part. There is.

In the electric parts chamber 2, there are concentrated electric parts such as a power switch 6, a power control board 7, an AC-position controlling FLS element 9 having a metal cooling fin 8 and the like which generate heat. There is. These electric components are cooled by the outside air flowing into the electric component chamber 2. The outside air passes through the electric component chamber 2 and is guided to the dust collecting chamber 3 through a ventilation hole 13 provided in a partition wall between the electric component chamber 2 and the dust collecting chamber 3. Also,
Since the electrical component chamber 2 is partitioned by the ribs from the dispersion exhaust chamber located below, the hot exhaust gas does not flow in. Furthermore, since the dust indicator 10 having the purpose of taking in outside air is installed in the electric component chamber 2, it is not necessary to newly provide an outside air intake port for the dust indicator 10, and when the dust indicator 10 operates, the Outside air more than normal flows into the parts chamber 2, and the cooling effect is increased. This dust indicator 10
When the inside of the dust collection chamber 3 falls below a certain negative pressure, the piston moves so that air is sent into the dust collection chamber 3 from outside the main body. This informs the user when the dust inside the paper filter 11 is discarded, and
In order to prevent overheating due to insufficient cooling of the electric blower 12 when the air volume decreases, a cooling air flow is supplied from the outside.

The front of the dust collecting chamber 3 is covered with a detachable lid 14 so as to be airtight via a dust collecting portion packing 15. The airtightness is obtained between the dust collecting part packing 15 provided on the lid body 14 and the airtight rib 18 provided around the dust collecting chamber 3, and when the electric blower 12 is operating, the dust collecting chamber 3 has a negative pressure. Is configured to be. The lid 14 is provided with a clamp 19 for detachably engaging.
Inside the dust collecting chamber 3, a paper filter 11 is detachably locked to an inlet 17 by a holder 16.

The dispersion exhaust chamber 4 is a sound deadening space provided so as to cover the dust collecting chamber 3 from the rear side. There is a noise reduction effect by guiding the exhaust flow coming out of the electric blower chamber located below to the exhaust ports 70 provided on both sides of the main body. This is because the exhaust flow velocity can be reduced by widely dispersing the exhaust flow, and thus the collision noise of the exhaust flow can be greatly reduced.
Further, in the dispersion exhaust chamber 4, a cord reel 21 and a cord reel button 22 for winding the power cord 20 are provided, and in addition to the above, there is an effect that an abnormal temperature rise of the power cord 20 can be prevented.

In the electric blower chamber 5, there is provided an intake duct 50 which connects the electric blower 12, the intake portion 58 of the electric blower 12 and the suction port 49 of the dust collecting chamber 3 to each other. 51 is provided. Further, a step portion 52 that engages with the axle pushing lever 32 extending from the suction body 23 side is provided outside. Since the electric blower 12 drives the rotating brush 25, the air intake duct 50 is disposed horizontally in the electric blower chamber 5, so that the dust collection chamber 3
Since the air intake portion 58 of the electric blower 12 cannot face each other, an opening 59 communicating with the air intake portion 58 is provided on the side surface of the duct from the dust collection chamber 3.

A handle 60 is detachably disposed on the upper portion of the cleaner body 1. 64 is a handle for transportation.
55 is a telescopic hose, and one is a connecting pipe (A) 61
And a connection pipe (B) 62 is provided on the other side. The connection pipe (A) 61 is rotatably attached to the back of the cleaner body 1, and the connection pipe (B) 62 is detachably connected to the main body duct 54. Extension pipe 65,
The Klevice nozzle 66 and the fabric nozzle 68 are detachably housed in the recesses provided in the rear surface of the cleaner main body 1 at positions where the openings are covered with the telescopic hose 55. When the connecting pipe (B) 62 is pulled out from the main body duct 54, the telescopic hose provided on the back surface of the cleaner main body 1 can be easily removed, and the connecting pipe (B) 62 is provided with an extension pipe 65, a clevis nozzle 66, etc. Can be connected in accordance with the intended use so that it is possible to clean the furniture gaps and the shelves that are difficult to clean with the suction body 23.

The cleaner main body 1 is mounted so as to be tiltable with respect to the suction body 23, and can be leaned upright on the suction body 23 when not in use. . The suction body 23 is mainly formed by a base frame 33, a cover 34 and a bumper 35, has a rotary brush 25 for scraping up dust on the carpet, and the suction port 24 has a height of the carpet. It has a height control knob 27 for adjusting according to the length of the foot. Also, mainly vacuum cleaner 1
There is a pedal 46 for tiltably rotating and locking the pedal. 41 is a rear wheel.

The rotary brush 25 is provided with a drive pulley 36, and a brush 37 having filaments lined on the outer periphery thereof, and a protrusion 38 which is divided into three in the longitudinal direction and arranged in the same streak shape. ing. And the rotating shaft 5 of the electric blower 12
The belt 26 is wound around the pulley 7 and the pulley 36, and the rotating brush 25 is driven by the rotation of the electric blower 12.

A height setting cam 28 is integrally connected to the height control knob 27, and the cam 28 is in contact with a front wheel shaft 29.

The front wheel shaft 29 has a crank shape, and both ends 30 thereof are rotatably supported by the suction body 23. Height adjusting front wheels 31 are attached to the both ends 30. Further, an axle pushing-out lever 32 projecting to the outside so that one end thereof is pivotally attached to the suction body 23 and the other end engages with the cleaner main body 1, the one end of the both end portions 30 is formed at the intermediate portion of the lever. It is configured to abut the part.

The pedal 46 is attached with a support shaft 48 provided on the suction body 23 as a center of rotation. Pedal 4
The lower end of 6 is in contact with the flat surface portion 47 of the lock arm 43, and the lock arm 43 has a cylindrical portion 44 serving as a rotating shaft.
And a locking portion 42. The locking portion 42 is mainly the vacuum cleaner 1.
Locking protrusion 6 provided on the cleaner main body 1 for locking the
3, a spiral-shaped urging spring 45 is provided to urge the locking portion 42 toward the locking projection 63. When the pedal 46 is stepped on with the foot to release the lock, the cleaner main body 1 can be tilted backward around the rotation shaft 39, and a normal cleaning state is achieved. Further, the main body 1 of the vacuum cleaner can be tilted down until the handle 60 hits the floor surface, so that it can be easily cleaned even in a low clearance such as a bed.

Next, the use of the upright type vacuum cleaner according to the present embodiment constructed as described above will be described.

In use, the power cord 20 is pulled out from the cord reel 21, connected to the power source, and the pedal 46 at the rear of the suction body 23 is stepped on to tilt the cleaner main body 1 above the suction body 23.

Next, when the power switch 6 is turned on, the electric blower 12 is operated, and the rotary brush 25 is rotated via the belt 26 along with suction by the blower.

In the case of long or medium fluff of the Juntan, turning the height control knob 27 changes the amount of protrusion of the front wheel 31 for height adjustment. It can be cleaned according to the difference in hair.

When cleaning is performed by the above-described method, the air flow containing a large amount of dust picked up by the rotating brush 25 becomes
From the suction port 24, the suction duct 53, the main body duct 54, and the expansion / contraction hose 55 flow into the paper filter 11.
Then, the dust remains on the paper filter 11, and only the air flow passes through the suction port 49, the intake duct 50, and enters the electric blower 12. The exhaust flow from the electric blower 12 passes through an exhaust filter 69 provided between the electric blower chamber 5 and the dispersion exhaust chamber 4, and the filtered and cleaned exhaust gas is discharged to the dispersion exhaust chamber. While being dispersed, the exhaust gas cools the power cord 20, the contact piece of the cord reel 21, the contact point of the reel support base 56, and the like, and is then discharged from the exhaust port 70 to the outside of the machine. At this time, the dispersion exhaust chamber has a relatively long distance, and a sound deadening effect can be obtained.

[0025]

As described above, according to the configuration of the present invention, the exhaust air of the electric blower is filtered by passing through the exhaust filter, and then the cord reel is cooled and guided to the exhaust port. Without being exhausted to the outside of the body without being hygienic, it leaves the electric blower and is immediately filtered,
Since it is distributed to the exhaust port, it is possible to minimize the area of the expensive exhaust filter, and it is possible to make the area of the exhaust port large enough to maintain the continuity of the exhaust gas flowing out of the main unit. Since it can be lowered sufficiently and the exhaust passage covers the dust collection chamber, the exhaust passage is long,
There are many bends in the aisle, and the noise can be reliably reduced, enabling quiet cleaning of the driving noise. Further, since the lid that closes the opening that is the outlet of the exhaust filter is provided integrally with the dust collecting chamber lid, it is possible to provide an inexpensive vacuum cleaner without newly providing a dedicated lid.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view of an essential part showing an embodiment of the present invention.

FIG. 2 is a rear view showing an embodiment of the present invention with a rear cover on the back surface removed.

FIG. 3 is an external view showing an embodiment of the present invention.

4 is a cross-sectional view taken along the line AA of FIG.

5 is a sectional view taken along line BB of FIG.

FIG. 6 is a rear view showing a state where cleaning is performed using the attachment.

FIG. 7 is a longitudinal sectional view of a main part showing a conventional example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Mainly vacuum cleaner, 3 ... Dust collection chamber, 4 ... Dispersion exhaust chamber, 5 ... Electric blower chamber, 12 ... Electric blower, 14 ... Lid body, 21 ... Cord reel, 23 ... Suction body, 55 ... Telescopic hose, 65 …
Extension pipe, 69 ... Exhaust filter.

Claims (3)

[Claims] 1. A cleaner main body comprising an electric blower and a dust collecting chamber for collecting dust, wherein an exhaust filter is arranged in an exhaust passage for guiding exhaust gas discharged from the electric blower to an exhaust port. An electric vacuum cleaner characterized in that a lid that closes an opening for taking out an exhaust filter is provided integrally with a dust collection chamber lid that covers an opening of the dust collection chamber. 2. A vacuum cleaner body comprising an electric blower, a dust collecting chamber, and a cord reel for winding a power cord, wherein an exhaust filter is arranged in an exhaust flow path for guiding the exhaust exhausted from the electric blower to an exhaust port. At the same time, an electric vacuum cleaner comprising a cord reel in an exhaust passage between the exhaust filter and the exhaust port. 3. The electric vacuum cleaner according to claim 2, wherein the exhaust filter is removably housed.