JP2001353110A - Electric vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric vacuum cleaner with high usability for eliminating the blow-off of dust by exhaust air from a rear part in a dead angle to a user. SOLUTION: This electric vacuum cleaner is provided with a motor-driven blower 2, a duct collecting chamber 5 communicated to the intake side of the motor-driven blower 2, a suction tool 12 for sucking the dust on a surface to be cleaned and an intake passage 8 for communicating the dust collecting chamber 5 and the suction tool 12 and a cord reel 21 is mounted to the outer periphery of the motor-driven blower 2. The exhaust 19 of the motor-driven blower 2 is inverted by the cord reel 21. By eliminating the exhaust 19 from the rear part of a main body 1, leading the exhaust 19 to the front part of the main body 1 and discharging the exhaust 19 from the front part of the main body 1, the electric vacuum cleaner with high usability is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an overall structure of a vacuum cleaner.

[0002]

2. Description of the Related Art A conventional vacuum cleaner will be described with reference to FIG. Conventionally, a dust collecting chamber 5 is provided in front of the electric blower 2, and a connection portion 7 for attaching a suction tool 12 is provided in front of the dust collecting chamber. Then, the air is sucked together with the outside air, flows into the dust collection chamber 5 through the connection portion 7, and is separated from the dust and the outside air by the paper bag filter 6 provided inside the dust collection chamber 5, and the outside air flows to the rear of the electric blower 2. It is blown out as exhaust. A cord reel 21 is mounted around the electric blower 2, and the exhaust 19 from the electric blower 2 passes through the cord reel unit 21 and is exhausted from an exhaust port 17 provided further behind the code reel 21.
Was released to the outside.

[0003]

However, in the above-mentioned conventional configuration, the exhaust 19 blows out from the rear of the main body 1 which is hard to see during use, so that the exhaust 19 is blown to an unexpected place and dust is scattered. Sometimes.
For example, a person who is cleaning with a portable vacuum cleaner may blow exhaust gas 19 on the face of a person behind, or fly ash from an ashtray on a table with the exhaust gas 19. . In particular, in recent years, the wind pressure of the exhaust 19 has been increasing with the increase in the suction force of the vacuum cleaner,
The negative consequences of are becoming increasingly significant.

The present invention solves the above-mentioned conventional problems, and eliminates exhaust from the rear of the main body, guides the exhaust to the front of the main body, and discharges the exhaust from the front of the main body, thereby providing a highly usable electric power. The purpose is to provide a vacuum cleaner.

[0005]

In order to achieve the above object, the present invention provides an electric blower, a dust collection chamber communicating with an intake side of the electric blower, and a suction device for sucking dust on a surface to be cleaned. An electric vacuum cleaner having an intake passage communicating the dust collecting chamber and the suction tool, and having a cord reel mounted on an outer periphery of the electric blower, wherein the cord reel is configured to invert exhaust of the electric blower. By eliminating exhaust from the rear of the main body, guiding the exhaust to the front of the main body, and exhausting the exhaust from the front of the main body, a highly usable vacuum cleaner can be provided.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION
An electric blower, a dust collection chamber communicating with the suction side of the electric blower, a suction device for sucking dust on the surface to be cleaned, and an intake passage communicating the dust collection chamber with the suction device. An electric vacuum cleaner having a code reel mounted on the outer periphery thereof, in which the exhaust of the electric blower is inverted by the code reel. Dust such as ash in the ashtray placed behind, which is a blind spot, will not be rolled up by exhaust air. In addition, by adopting a configuration in which the exhaust gas is bypassed, the noise value can be reduced.

According to a second aspect of the present invention, in the first aspect of the present invention, a soft body is provided on the cord reel so that the cord reel comes into contact with the inner wall of the main body by the pressure of the exhaust. This prevents leakage to the outside air.

According to a third aspect of the present invention, there is provided an electric blower, a dust collecting chamber communicating with an intake side of the electric blower, a suction device for sucking dust on a surface to be cleaned, the dust collecting chamber and the dust collecting chamber. A vacuum cleaner having an intake passage communicating with a suction tool, and a code reel mounted on the outer periphery of the electric blower, wherein a cover body that covers an exhaust side of the electric blower is provided between the electric blower and the code reel, With the configuration in which the exhaust of the electric blower is reversed by the cover body, the configuration of the vacuum cleaner that does not emit exhaust from the rear of the main body becomes easy, such as ash of an ashtray placed behind which becomes a blind spot for a user. The dust is not rolled up by the exhaust. In addition, by adopting a configuration in which the exhaust gas is bypassed, the noise value can be reduced. Further, it prevents the exhaust gas from leaking to the outside air.

According to a fourth aspect of the present invention, in the first aspect of the present invention, at least a part of the exhaust of the electric blower is returned to the suction device. Dust collection performance is improved by the effect of scraping up dust on the surface to be cleaned by the exhaust gas returned to the tool.

According to a fifth aspect of the present invention, in the third or fourth aspect of the present invention, a member for increasing air resistance is inserted between the electric blower and a cover covering the exhaust side of the electric blower. By the member that increases the air resistance, the wind speed and wind pressure of the exhaust discharged from the electric blower are reduced,
Wind noise is reduced. In addition, since the periphery of the electric blower is covered with a member that increases air resistance, it is possible to suppress the rotation noise generated from the electric blower, and it is possible to greatly reduce the noise value of the product body.

According to a sixth aspect of the present invention, in the first aspect of the present invention, a seal is provided between the cover body covering the exhaust side of the electric blower and the inner wall of the main body. By providing airtightness with the seal material so that exhaust gas does not leak backward from the electric blower, exhaust gas leaking from the outlet of the cord reel can be greatly reduced, and a more clean feeling is provided. It is possible to provide an electric vacuum cleaner.

According to a seventh aspect of the present invention, there is provided an electric blower, a dust collecting chamber communicating with an intake side of the electric blower, a suction device for sucking dust on a surface to be cleaned, the dust collecting chamber and the dust collecting chamber. A vacuum cleaner having an intake passage communicating with a suction tool, wherein an inside of a handle provided substantially above the electric blower is used as an exhaust passage of the electric blower, and at least a part of the exhaust gas is returned to the suction tool. Since the inside of the handle is used as an exhaust passage, there is no need to provide an exhaust passage around the electric blower, and a small-sized vacuum cleaner can be provided.

The invention according to claim 8 of the present invention is the invention according to any one of claims 1 to 7, wherein the main body has an electric blower unit having an electric blower and the electric blower unit is detachably attached to the electric blower unit. The electric blower comprises a dust collecting chamber having a dust chamber, and the exhaust of the electric blower is discharged from the front of the electric blower. The electric blower is provided with the dust collecting chamber removed from the electric blower. Since the exhaust gas discharged from the exhaust passage on the side of the unit is used as a blower, it is easy to clean a recessed portion or a front entrance which has been difficult to clean up to now. In addition, dust and pollen that have accumulated on the leaves of the houseplant can be removed without damaging the plant. Furthermore, it is possible to clean a part that is out of reach, such as near the ceiling.

According to a ninth aspect of the present invention, in accordance with the eighth aspect of the present invention, a rib is provided inside the exhaust passage of the electric blower unit, and a pressure loss is applied inside the electric blower unit. By adding pressure loss to the electric blower section, which has a relatively simple exhaust tight configuration and a large tight effect, it is possible to reduce exhaust leakage as a whole body, thereby suppressing exhaust speed and reducing body noise value. It is possible to reduce the size.

According to a tenth aspect of the present invention, in accordance with the eighth or ninth aspect of the present invention, a member for increasing air resistance is provided inside an exhaust passage of the electric blower to reduce the amount of exhaust. By adding a pressure loss to the electric blower section, which has a relatively simple exhaust tight configuration and a large tight effect, it is possible to reduce exhaust leakage as a whole body, thereby suppressing the exhaust speed and reducing the pressure loss material. As a result, a sound absorbing effect can be obtained, so that the main body noise value can be reduced.

According to an eleventh aspect of the present invention, in accordance with any one of the first to tenth aspects of the present invention, the inside of the exhaust passage for guiding the exhaust of the electric blower is provided from both sides of the inner wall of the exhaust passage. A plurality of extending ribs are provided, arranged so as to be displaced from each other along the direction of air flow of the exhaust gas, so that the exhaust gas flows in a zigzag manner. The noise is attenuated, and the noise value of the product can be reduced.

According to a twelfth aspect of the present invention, in accordance with any one of the first to eleventh aspects of the present invention, the exhaust from the electric blower is supplied to the suction tool through an exhaust passage provided inside the main body. And at least a part of the exhaust gas is discharged to the outside air from an exhaust port provided in the suction tool. The dust such as the ash in the ashtray placed behind, which is a blind spot for the user, is not rolled up by the exhaust. Further, since the exhaust passage becomes longer, noise generated from the electric blower included in the exhaust gas is attenuated, and a quieter vacuum cleaner can be provided.

According to a thirteenth aspect of the present invention, in accordance with the twelfth aspect, the exhaust is discharged upward or obliquely upward and forward of the suction tool by an exhaust port provided in the suction tool. Therefore, the exhaust discharged from the upper part of the suction tool does not blow on the user's face, and comfortable cleaning can be performed.

According to a fourteenth aspect of the present invention, in accordance with the twelfth aspect of the present invention, an exhaust port provided in the suction device discharges exhaust gas to the side or obliquely upward of the suction device. Even if the angle between the suction tool and the surface to be cleaned is inclined, the angle between the exhaust and the floor does not become too small, and the dust on the floor is not blown off by the exhaust.

According to a fifteenth aspect of the present invention, in the twelfth aspect of the invention, the exhaust gas is discharged to the rear or obliquely upward and rearward of the suction tool by an exhaust port provided in the suction tool. It is located in front of the suction tool, and there is no danger that the dust to be sucked is blown off by the exhaust gas.

[0021] The invention according to claim 16 of the present invention is the invention according to any one of claims 13 to 15, wherein
The suction device has a plurality of exhaust ports, and the amount of exhaust from at least one of the exhaust ports is different from the other. For example, when the user is right-handed, the main body is held with the right hand. By reducing the exhaust air from the left side, the amount of exhaust air blown out to the user side is reduced, and more clean and comfortable cleaning can be performed.

According to a seventeenth aspect of the present invention, in the above-mentioned one of the first to sixteenth aspects, the exhaust gas is directed upward or obliquely upward from the exhaust port provided at the front of the main body. The exhaust discharged from the front of the main body does not blow to the user's face located behind the main body, and the exhaust blows off dust on the surface to be cleaned. Nor.

According to an eighteenth aspect of the present invention, in accordance with any one of the first to sixteenth aspects of the present invention, the exhaust gas is supplied to the front side of the main body sideways or obliquely from the exhaust port provided in front of the main body. The structure is such that the dust is discharged upward, so that dust on the floor surface is not blown off by exhaust during use even when the main body is used with the main body tilted back and forth.

According to a nineteenth aspect of the present invention, in accordance with any one of the first to sixteenth aspects of the present invention, the exhaust gas is supplied from the exhaust port provided at the front of the main body to the rear or oblique rear of the main body. , And there is no danger that the dust that is located in front of the suction tool and is about to be sucked in from now will be blown off by the exhaust air.

According to a twentieth aspect of the present invention, there is provided the invention as set forth in any one of the seventeenth to nineteenth aspects,
A plurality of exhaust ports are provided in front of the main body, and at least one exhaust port is provided.
The amount of exhaust from the exhaust port at the location is different from the others.For example, if the user is right-handed, to hold the main unit with the right hand, reduce the exhaust from the left side of the main unit and blow out to the user side Displacement is reduced, enabling cleaner and more comfortable cleaning.

According to a twenty-first aspect of the present invention, in accordance with the first aspect of the present invention, there is provided an air outlet provided at a connecting portion connecting the main body and the suction tool.
The exhaust is discharged upward or diagonally upward and forward of the connection part, so that the exhaust discharged from the connection part does not blow on the face of the user located behind the main body, and this exhaust It does not blow off dust on the surface to be cleaned.

[0027] According to a twenty-second aspect of the present invention, in accordance with the first aspect of the present invention, there is provided an air outlet provided at a connection portion connecting the main body and the suction tool.
It is configured to discharge exhaust to the side of the connection part or diagonally upward, even if the main body is used with a large inclination back and forth,
The dust on the floor surface is not blown off by the exhaust during use.

According to a twenty-third aspect of the present invention, in accordance with the first aspect of the present invention, the exhaust port provided at the connecting portion connecting the main body and the suction tool is provided by:
The exhaust is discharged to the rear or obliquely rear of the connection portion, and there is no danger that dust located at the front of the suction tool and to be sucked from the exhaust will be blown off by the exhaust.

The invention according to claim 24 of the present invention is the invention according to any one of claims 21 to 23, wherein
A plurality of exhaust ports are provided at a connection portion connecting the main body and the suction tool, and the amount of exhaust from at least one exhaust port is different from that of the others. For example, when the user is right-handed, the main body is held in the right hand. Therefore, the amount of exhaust air blown out to the user side is reduced by reducing the exhaust air from the left side of the main body, thereby enabling more clean and comfortable cleaning.

The invention according to claim 25 of the present invention is the invention according to any one of claims 1 to 24, further comprising a suction tool, and a connecting portion for connecting the suction tool to a main body. The suction tool is composed of a suction port and a connection pipe, and is a vacuum cleaner in which the connection pipe and the suction port are rotatably mounted. The suction port is 90 degrees to at least one of left and right with respect to the connection pipe. It is provided with a rotation restricting portion that rotates and controls the rotation of the suction port and the connection pipe in units of 90 degrees. By rotating the suction device by 90 degrees, the width of the suction device becomes small, and the normal state is obtained. This is convenient when cleaning gaps smaller than the width of the suction tool. Also, when cleaning a gap having a low height, such as under a TV stand, the suction tool can be rotated by 90 degrees so as to enter the gap to perform cleaning.

According to a twenty-sixth aspect of the present invention, in the thirty-fifth aspect of the present invention, the rotation restricting portion is formed of a leaf spring or a resin spring, and the suction tool is provided with a surface to be cleaned having a large frictional resistance. Prevents the suction tool from rotating unexpectedly when using it, and allows the user to confirm that the suction tool is facing in the correct direction by clicking and adjust the rotation position while looking at the matching mark etc. It saves you the trouble of matching.

According to a twenty-seventh aspect of the present invention, in the above-mentioned one of the first to twenty-sixth aspects, the input power of the electric blower is set to 200 ± 50 W, and the exhaust air circulation type is used. However, the heat generated by the electric blower can be suppressed to a low level, and the necessary and sufficient suction force can be obtained. Further, the size of the electric blower can be reduced, and the weight can be reduced.

According to a twenty-eighth aspect of the present invention, in the invention according to any one of the first to twenty-seventh aspects, the exhaust air from the electric blower is guided to the suction tool, and the lower surface of the suction tool has both ends. An exhaust hole that blows out exhaust gas toward the intake port of the suction tool is provided and circulated, and the amount of circulation of the exhaust gas is set to 20 to 40% of the total exhaust gas amount from the electric blower. To provide a compact, lightweight, and high-performance vacuum cleaner that does not blow off dust on the surface to be cleaned by blowing out air, has good dust collection performance, and can moderately increase the temperature of the electric blower. Becomes possible.

[0034]

(Embodiment 1) A first embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a sectional view showing the internal structure of the vacuum cleaner. Electric blower 2 for generating a negative pressure inside main body 1
A dust collecting chamber 5 having a dust collecting filter 6 is mounted on the intake side 3 of the electric blower 2.
Further, the dust collection chamber 5 and the connection part 7 are communicated with each other through an intake passage 8, and dust sucked from a suction tool 12 attached to the connection part 7 flows into the dust collection chamber 5 through the inside of the intake passage 8. The dust is separated into an air component and a dust component by the dust collection filter 6.

The dust collection chamber 5 and the intake passage 8 are connected at a lower portion of the dust collection chamber 5, and the airflow flowing from the intake passage 8 into the dust collection chamber 5 circulates around the outer periphery of the dust collection filter 6. Dust collection room 5
The intake passage 8 is connected to the dust collection chamber 5 substantially along the shape of the inner wall surface of the air conditioner. As a result, the air containing dust swirls around the dust collection filter 6 and the dust is pressed against the inner wall of the dust collection chamber 5 by centrifugal force, so that the amount of dust adhering to the dust collection filter 6 is reduced, and the dust collection is reduced. It is possible to suppress suction performance deterioration due to clogging of the filter 6.

As shown in FIG. 3, the main body 1 is composed of an electric blower section 27 and a dust collecting chamber section 26. A buckle 34 is attached near the front of the handle 24 of the electric blower unit 27, and when the handle 24 is gripped, the buckle 34 can be easily operated with the thumb. By pressing the buckle 34, the electric blower unit 27 and the dust collection chamber unit 26 are separated.

Therefore, when the dust accumulated inside the dust collecting chamber 5 is discarded, it is possible to remove the dust collecting chamber 26 from the main body 1 and go to the trash box with only the dust collecting chamber 26 to take out the dust inside. It becomes possible. That is, the heavy electric blower unit 2
The trash can be discarded without having to carry around the garbage 7, thereby reducing the trash disposal labor.

A cord reel 21 is provided on the outer periphery of the electric blower 2.
The above configuration makes it possible to effectively use the space around the electric blower 2 and to provide a compact vacuum cleaner.
In FIG. 1, the exhaust 19 discharged from the electric blower 2
Is turned by the cord reel 21, and the pressure of the exhaust 19 causes the sealing member A 40, which is a soft body provided on the code reel 21, to come into contact with the inner wall of the main body 1. Can be prevented from leaking. Since the cord reel 21 rotates at the time of pulling out and winding the cord, it is necessary to keep the drum portion of the cord reel 21 that is the cord winding portion in a non-contact state with the inner wall of the main body 1. Therefore, a gap is generated between the drum portion and the inner wall of the main body 1, so that the sealing material A 40 is put around the drum portion of the cord reel 21.

In FIG. 2, a cover 22 covering the electric blower 2 is attached between the cord reel 21 and the electric blower 2, and the exhaust 19 discharged from the electric blower 2 is removed by the cover 22. Changed direction. Between the cover body 22 and the electric blower 2, a pressure-loss material A28a such as urethane or felt, which is a member for increasing air resistance, is inserted, and the exhaust 19 from the electric blower 2 once passes near the pressure-loss material A28a. The wind speed decreases, the wind noise decreases, and the noise generated from the electric blower 2 also plays a role of a soundproofing material, so that the noise value of the main body 1 can be largely suppressed.

The exhaust gas 19 that has passed near the pressure loss material A 28a
Is a pressure-loss material B28, which is a member that obtains further pressure loss at a rib A31 extending from the outer shell of the main body 1 and additionally increases air resistance.
Also in b, the wind speed is reduced. With the above configuration, the wind speed of the exhaust gas 19 is sufficiently suppressed, and the noise of the main body 1 is reduced. Moreover, the electric blower 2 has a tight structure around the electric blower unit 27 and the dust collection chamber 26 around the electric blower unit 27 and is relatively simple. Is provided with the sealing material B30, so that even if a large pressure loss is applied, the amount of the exhaust gas 19 leaking from the tight portion can be reduced. In other words, by applying a large pressure loss in advance in the electric blower unit 27, the pressure of the exhaust gas 19 in the dust collection chamber unit 26, which is a front passage of the exhaust gas 19, is reduced. And the exhaust passage 9 are close to each other, so that air leak in the dust collecting chamber 26 where air leak is likely to occur is suppressed, and loss of suction force can be reduced.

The dust collecting chamber 26 includes a dust collecting chamber 5 and a dust collecting filter.
6. Exhaust passage outer shell A32a, exhaust passage outer shell B32b, exhaust connection unit 33, intake passage 8, connection unit 7, and check valve 1
The check valve 11 is attached so as to be sandwiched between a connection portion between the intake passage 8 and the dust collection chamber 5. Further, the exhaust connection portion 33 is formed of a soft body, and connects the electric blower unit 27 and the exhaust passage 9 of the dust collection chamber unit 26 by airtight. The direction of the opening of the valve body of the check valve 11 is such that the air flow that flows into the dust collection chamber 5 does not hinder the swirling air flow, and that the sucked dust does not catch on the check valve 11. It is configured to open in the direction. Further, even if dust accumulates inside the dust collection chamber 5 and a load is applied to the check valve 11, the check valve 11 falls down to the intake passage 8 side so that the dust does not flow back to the intake passage 8. The stop valve 11 opens only on the dust collection chamber 5 side. Intake passage 8
Outer circumference, exhaust passage outer shell A32a, exhaust passage outer shell B32
The space surrounded by b and the dust collection chamber 5 is an exhaust passage 9. Exhaust connection section 33 provided in electric blower section 27
Although the exhaust gas 19 flows into the exhaust passage 9, a large pressure loss has already been applied inside the electric blower unit 27, and both the wind speed and the wind pressure of the exhaust gas are suppressed.
Leakage of the exhaust gas 19 from 3 is small. In addition, by setting up a plurality of ribs B25 at positions shifted from each other inside the exhaust passage 9, the flow of the exhaust 19 is made zigzag, and the exhaust passage 9 can be made longer. It is possible to do.

FIG. 3 shows a state in which a blower is used. When the dust collection chamber 26 is removed and only the electric blower 27 is used, the exhaust 19 blows out from the exhaust connection 33,
This can be used for cleaning as a spray blower. Specifically, it is useful for blowing off sand trash at the entrance and blowing off pollen and dust accumulated on the leaves of houseplants.

A handle 24 is provided above the electric blower unit 27, that is, near the electric blower 2, and
6. When the suction tool 12 is attached and the handle 24 is held by hand, that is, in a use state, the center of gravity is adjusted so that the main body 1 is inclined forward and the suction tool 12 is horizontal to the surface to be cleaned. Sometimes it is not necessary to apply a force to tilt the main body 1, and cleaning work can be performed comfortably.

At the connecting portion 7, the intake passage 8 and the exhaust passage 9 are integrated, but this portion is a double cylindrical pipe,
An inner pipe is an intake passage 8, and a space defined by the inner pipe and the outer pipe is an exhaust passage 9. Similarly, the connection pipe 14 of the suction tool 12 is also a double cylindrical pipe, and the inside is an intake passage 8 and the outside is an exhaust passage 9 like the connection part 7.

The suction tool 12 comprises a connecting pipe 14 and a suction port 13. The connection pipe 14 is rotatably attached to the suction port 13 and can be rotated left and right 90 degrees from the position shown in FIG. Also, in the normal state, and FIG.
The rotation fixing mechanism for fixing the rotation in the 90-degree right and left rotation state shown in FIG. This makes it easy to clean the suction tool 12 by rotating it 90 degrees even in a narrow place or a place with a low height such as under a TV stand.

In FIG. 5, an exhaust port 17 is provided on the upper surface of the suction port 13 of the suction tool 12, and the exhaust gas 19 flowing into the suction port 13 from the main body 1 through the exhaust passage 9, the connection portion 7, and the connection pipe 14. Is discharged from the exhaust port 17 to the outside. As a result, it is possible to prevent the dust that is going to be sucked from being blown away unexpectedly. In this embodiment, the exhaust gas 19 is discharged to the side of the suction tool 12 from the exhaust port 17 provided in the suction tool 12,
The exhaust gas 19 may be discharged upward or obliquely upward and forward of the suction device 12, obliquely upward of the suction device 12, or backward or obliquely upward and rearward of the suction device 12. Further, in the plurality of exhaust ports 17, the amount of exhaust from at least one of the exhaust ports 17 is set to a different amount from other exhaust ports. For example, when the user is right-handed, the main body 1 is held with the right hand. By reducing the exhaust 19 from the left side of the main body 1, the amount of the exhaust 19 blown out to the user side is reduced, so that a cleaner and more comfortable cleaning can be performed.

Further, as shown in FIG. 7, the remaining exhaust gas 19 not discharged from the exhaust port 17 is blown out toward the intake port 15 through exhaust holes 29 provided at both ends of the rear surface of the suction port 13. . As a result, the dust on the surface to be cleaned is blown off toward the intake port 15 by the force of the exhaust 19, and the dust collection performance is improved by using not only the suction force but also the force of the exhaust 19, as compared with the case where dust is collected only by suction. Is improved. However, if all of the exhaust gas 19 is circulated to the intake port 15, the temperature of the electric blower 2 rises due to heat generated from the electric blower 2, and the durable life of the electric blower 2 is shortened, or Since there is a risk of thermal deformation, it is necessary to release some of the exhaust gas 19 to the outside together with heat from the exhaust port 17, and the amount of exhaust 19 circulated to the electric blower 2 depends on the total exhaust from the electric blower 2. 20 to 40% of the amount. Further, by setting the input power of the electric blower to 200 ± 50 W, it is possible to suppress the heat generated by the electric blower 2 even in the exhaust circulation type, and to obtain a necessary and sufficient suction force.

Further, since the dust collecting chamber 5 is made of a transparent and anti-static material, it is possible to visually check the volume of the dust. It is easy to grasp the dust, and the dust adheres to the dust collecting filter 6, and there is no longer a situation where the user is dissatisfied with the suction force in a clogged state, that is, in a state where the suction force is reduced. In addition, since it is possible to see the dust swirling inside when dust is sucked, the cleaning work that is generally not enjoyable is provided with a playability, which contributes to the enjoyable cleaning.

In this embodiment, an example of a portable vacuum cleaner is given, but the present invention is not limited to this, and is an invention common to all vacuum cleaners such as floor-moving vacuum cleaners.

(Embodiment 2) Hereinafter, a second embodiment of the present invention will be described with reference to FIG. The same components as those in the above embodiment are denoted by the same reference numerals, and description thereof will be omitted.

The exhaust 19 discharged from the electric blower 2 is
It flows through the inside of the cord reel 21 to the rear of the code reel 21, passes through the inside of a handle 24 provided substantially above the electric blower 2, and flows to the front of the main body 1. The exhaust gas 19 flowing into the dust collection chamber 26 advances to the connection section 7 through the upper side of the dust collection chamber 5. By providing the exhaust passage 9 substantially above the electric blower 2, the dust accumulated in the dust collection chamber 5 can be discarded.
The exhaust passage 9 can be used as a handle when transporting the dust collection chamber 26.

(Embodiment 3) Hereinafter, a third embodiment of the present invention will be described with reference to FIG. The same components as those in the above embodiment are denoted by the same reference numerals, and description thereof will be omitted.

An exhaust port 17 is provided at the connecting portion 7 of the suction tool 12. In this embodiment, the exhaust port 17 is prevented from unexpectedly blowing off dust to be sucked from the exhaust port 17. If all of the exhaust gas 19 is circulated to the intake port 15, the temperature of the electric blower 2 rises due to heat generated from the electric blower 2, shortening the durable life of the electric blower 2, Therefore, it is necessary to release some of the exhaust gas 19 to the outside together with heat from the exhaust port 17. In this embodiment,
Exhaust gas 19 is discharged to the side of the connection portion 7 from the exhaust port 17 provided in the connection portion 7, but the exhaust gas 19 is directed upward, obliquely upward and forward of the connection portion 7, or obliquely upward of the connection portion 7. Or may be discharged backward or obliquely upward and backward of the connection portion 7. In addition, a plurality of exhaust ports 1
7, the amount of exhaust from at least one of the exhaust ports 17 is set to a different amount from other exhaust ports. For example, when the user is right-handed, the main body 1 is held with the right hand. By reducing the number 19, the amount of the exhaust 19 blown out to the user side is reduced, so that more clean and comfortable cleaning can be performed.

Embodiment 4 Hereinafter, a fourth embodiment of the present invention will be described with reference to FIG. The same components as those in the above embodiment are denoted by the same reference numerals, and description thereof will be omitted.

An exhaust port 17 is provided in the vicinity of the connecting portion 7 in front of the main body 1.
Is provided, so that dust which is going to be sucked in from now is not suddenly blown off. Also,
If all of the exhaust gas 19 is circulated to the intake port 15, the temperature of the electric blower 2 rises due to the heat generated from the electric blower 2, and the durable life of the electric blower 2 is shortened, or the main body 1 is heated. Some exhaust 1 may be deformed.
It is necessary to release 9 from the exhaust port 17 to the outside together with heat. In this embodiment, the exhaust 19 is discharged to the side of the main body 1 from the exhaust port 17 provided in front of the main body 1. May be discharged obliquely upward or behind the main body 1 or obliquely upward and rearward. Further, in the plurality of exhaust ports 17, the amount of exhaust from at least one of the exhaust ports 17 is set to a different amount from other exhaust ports. For example, when the user is right-handed, the main body 1 is held with the right hand. By reducing the exhaust 19 from the left side of the main body 1, the amount of the exhaust 19 blown out to the user side is reduced, so that a cleaner and more comfortable cleaning can be performed.

[0057]

According to the present invention, it is possible to provide an electric vacuum cleaner which does not emit exhaust gas from the rear of the main body, and it is possible to blow off dust and ashtrays caused by exhaust air, which may occur at the rear of the main body, which becomes a blind spot during use of the electric vacuum cleaner. It is possible to prevent ash sowing. Further, since the exhaust passage can be made relatively long, it is possible to suppress main body noise. Further, by circulating a part of the exhaust gas into the suction device, the absolute amount of the exhaust gas is reduced, and a clean vacuum cleaner is used, and the dust collection performance can be improved by using the power of the exhaust gas.

[Brief description of the drawings]

FIG. 1 is an overall sectional view of a vacuum cleaner showing a first embodiment of the present invention.

FIG. 2 is an overall cross-sectional view of a vacuum cleaner showing another embodiment.

FIG. 3 is an exploded sectional view of the vacuum cleaner.

FIG. 4 is a partially broken bottom view of the vacuum cleaner.

FIG. 5 is a perspective view of a front portion of the vacuum cleaner.

FIG. 6 is a perspective view of another front part of the vacuum cleaner.

FIG. 7 is a partially broken perspective view of a suction tool of the vacuum cleaner.

FIG. 8 is an overall sectional view of a vacuum cleaner showing a second embodiment of the present invention.

FIG. 9 is a perspective view of a front portion of a vacuum cleaner showing a second embodiment of the present invention.

FIG. 10 is a perspective view of a front portion of a vacuum cleaner showing a third embodiment of the present invention.

FIG. 11 is an overall sectional view of a conventional vacuum cleaner.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 2 Electric blower 3 Intake side 5 Dust collection chamber 7 Connection part 8 Intake passage 9 Exhaust passage 12 Suction implement 13 Suction part 14 Connection pipe 15 Intake port 17 Exhaust port 19 Exhaust 21 Code reel 22 Cover body 24 Handle 25 Rib B26 Dust collection unit 27 Electric blower unit 28a Pressure loss material A 28b Pressure loss material B 29 Exhaust hole 30 Seal material B 31 Rib A 33 Exhaust connection unit 40 Seal material A

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) A47L 9/26 A47L 9/26 Z (72) Inventor Koichi Ito 1006 Odakadoma, Kadoma-shi, Osaka Matsushita Electric Industrial Incorporated F term (reference) 3B006 BA01 BA05 BA06 BA07 3B057 CA01 CA02 CA14 3B061 AA06 AA26 AA41 AH02

Claims (28)

[Claims] 1. An electric blower, a dust collection chamber communicating with an intake side of the electric blower, a suction device for sucking dust on a surface to be cleaned, and an intake passage communicating the dust collection chamber with the suction device. An electric vacuum cleaner having a code reel mounted on the outer periphery of the electric blower, wherein the exhaust of the electric blower is reversed by the code reel. 2. The vacuum cleaner according to claim 1, wherein a soft body is provided on the cord reel, and the cord reel comes into contact with the inner wall of the main body by the pressure of the exhaust gas. 3. An electric blower, a dust collection chamber communicating with an intake side of the electric blower, a suction device for sucking dust on a surface to be cleaned, and an intake passage communicating the dust collection chamber with the suction device. A vacuum cleaner having a code reel mounted on an outer periphery of the electric blower, a cover body covering an exhaust side of the electric blower is provided between the electric blower and the code reel, and the exhaust of the electric blower is performed by the cover body. Vacuum cleaner with a configuration to invert. 4. The vacuum cleaner according to claim 1, wherein at least a part of the exhaust air of the electric blower is returned to the suction tool. 5. The vacuum cleaner according to claim 3, wherein a member for increasing air resistance is inserted between the electric blower and the cover body. 6. A cover body for covering an exhaust side of the electric blower,
The vacuum cleaner according to any one of claims 3 to 5, wherein a sealing material is provided between the vacuum cleaner and an inner wall of the main body. 7. An electric blower, a dust collection chamber communicating with an intake side of the electric blower, a suction device for sucking dust on a surface to be cleaned, and an intake passage communicating the dust collection chamber with the suction device. An electric vacuum cleaner, wherein an inside of a handle provided substantially above the electric blower is used as an exhaust passage of the electric blower, and at least a part of the exhaust is returned to the suction tool. 8. A main body is composed of an electric blower section having an electric blower section and a dust collecting chamber section having a dust collecting chamber detachably attached to the electric blower section, and exhaust air of the electric blower is discharged from the front of the electric blower section. The vacuum cleaner according to any one of claims 1 to 7, wherein the vacuum cleaner is used. 9. A motor according to claim 8, wherein a rib is provided inside the exhaust passage of the electric blower unit, and a pressure loss is applied inside the electric blower unit.
Vacuum cleaner as described. 10. The vacuum cleaner according to claim 8, wherein a member for increasing air resistance is provided inside the exhaust passage of the electric blower unit. 11. An exhaust passage for guiding exhaust of an electric blower, a plurality of ribs extending from both side surfaces of an inner wall of the exhaust passage are provided, displaced from each other along an air flow direction of the exhaust, and the exhaust is zigzag. The vacuum cleaner according to any one of claims 1 to 10, which is configured to flow. 12. An exhaust from an electric blower is guided to a suction tool through an exhaust passage provided in a main body.
The vacuum cleaner according to any one of claims 1 to 11, wherein at least a part of the exhaust gas is discharged to outside air from an exhaust port provided in the suction tool. 13. The vacuum cleaner according to claim 12, wherein exhaust gas is discharged upward or obliquely upward and forward of the suction tool from an exhaust port provided in the suction tool. 14. The vacuum cleaner according to claim 12, wherein exhaust gas is discharged to the side or obliquely upward of the suction tool from an exhaust port provided in the suction tool. 15. The vacuum cleaner according to claim 12, wherein exhaust gas is discharged from an exhaust port provided in the suction tool to the rear of the suction tool or obliquely upward and rearward. 16. The vacuum cleaner according to claim 13, wherein a plurality of exhaust ports are provided in the suction tool, and the amount of exhaust from at least one exhaust port is different from the others. 17. The vacuum cleaner according to claim 1, wherein exhaust gas is discharged upward or obliquely upward and forward of the main body from an exhaust port provided in front of the main body. 18. The vacuum cleaner according to claim 1, wherein exhaust gas is discharged to the side or obliquely upward of the main body from an exhaust port provided in front of the main body. 19. The vacuum cleaner according to claim 1, wherein exhaust gas is discharged rearward or obliquely rearward of the main body from an exhaust port provided in front of the main body. 20. The vacuum cleaner according to claim 17, wherein a plurality of exhaust ports are provided in front of the main body, and an amount of exhaust from at least one exhaust port is different from the others. 21. The air conditioner according to any one of claims 1 to 20, wherein exhaust gas is discharged upward or obliquely upward and forward of the connection portion from an exhaust port provided at a connection portion connecting the main body and the suction tool. Vacuum cleaner. 22. The air conditioner according to claim 1, wherein exhaust gas is discharged to the side or obliquely upward of the connecting portion from an exhaust port provided in a connecting portion connecting the main body and the suction tool. Vacuum cleaner as described. 23. The air-conditioner according to claim 1, wherein exhaust gas is discharged to the rear or obliquely rear of the connecting portion from an exhaust port provided at a connecting portion connecting the main body and the suction tool. Vacuum cleaner. 24. The air conditioner according to claim 21, wherein a plurality of exhaust ports are provided at a connection portion connecting the main body and the suction tool, and an exhaust amount from at least one exhaust port is different from the others. An electric vacuum cleaner according to claim 1. 25. A suction tool, and a connecting part for connecting the suction tool and the main body, wherein the suction tool comprises a suction port and a connection pipe, and the connection pipe and the suction port are rotatably mounted. In the vacuum cleaner, the suction port rotates 90 degrees to at least one of left and right with respect to the connection pipe, and a rotation restricting section that controls the rotation of the suction port and the connection pipe in units of 90 degrees. The vacuum cleaner according to any one of claims 1 to 24, wherein the vacuum cleaner is provided. 26. The vacuum cleaner according to claim 25, wherein the rotation restricting portion is constituted by a leaf spring or a resin spring. 27. An electric blower having an input power of 200 ± 50.
The vacuum cleaner according to any one of claims 1 to 26, wherein W is W. 28. A structure in which exhaust gas from an electric blower is guided to a suction tool, and exhaust holes are provided at both ends of the lower surface of the suction tool to blow exhaust gas toward an intake port of the suction tool, and are circulated.
The amount of circulation of the exhaust gas is 20 to the total exhaust amount of the electric blower.
The vacuum cleaner according to any one of claims 1 to 27, wherein the vacuum cleaner is 40%.