JP2002085297A - Vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vacuum cleaner which is high in dust collecting performance, lightweight and excellent in usability for three-dimensional cleaning of a ceiling, a wall surface, a floor, etc., in particular. SOLUTION: The cleaner consists of a suction port body 44 incorporating an electric brush, a main body 20 incorporating an electric blower, a dust collecting case 32 fitted to the main body 20 and a conductive extension pipe 23 for connecting the body 44 and the main body 20. The total mass of the main body 20 and the case 32 is <=1 kg and the mass of the body 44 is <=1/5 of the total mass of the main body 20 and the case 32. Thus, it is possible to clean even the ceiling, the wall surface, etc., by the electric blower 21 of a comparatively small power without deteriorating the dust collecting performance by utilizing the raking-up force of an electric brush 47 without being bothered by the weight of the cleaner.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner provided with an electric brush on a suction opening.

[0002]

2. Description of the Related Art Conventionally, a hand-held stick-type vacuum cleaner in which a floor nozzle is connected to a main body portion provided with an electric blower and a dust collecting portion by an extension pipe is disclosed in Japanese Patent Publication No. 64-9006. Was configured to. Hereinafter, the configuration will be described with reference to FIG.

[0003] Reference numeral 1 denotes a built-in electric blower (not shown) for generating a suction force, an insertion portion 3 of an extension tube 2 provided at a front end, a handle portion 4 formed at a rear end, and a switch portion 5 provided. Reference numeral 6 denotes a main body portion, 6 denotes a dust collecting portion containing a filter body (not shown), and 7 denotes a floor nozzle connected to the main body portion 1 via the extension pipe 2.

[0004] Dust on the floor surface is collected into the dust collecting portion 6 from the suction port of the floor nozzle 7 through the extension pipe 2 by suction force generated by the electric blower.

[0005]

In such a conventional configuration, if the dust collecting performance of the floor nozzle 7 is to be enhanced, the pressure loss of the extension pipe 2 is compensated for, and a sufficient air volume is supplied from the suction port of the floor nozzle 7. In order to draw in, it was necessary to increase the input of the electric blower to increase the air volume and the degree of vacuum. As a result, the weight of the main body 1 is inevitably increased, and the usability is deteriorated. Also, the floor nozzle 7 becomes large, and it is necessary to lift it when cleaning the wall and ceiling three-dimensionally.
Separately, it was necessary to replace and use the attached small and lightweight shelf nozzle.

An object of the present invention is to solve the above-mentioned conventional problems, and an object of the present invention is to provide a vacuum cleaner having a reduced weight suitable for three-dimensional cleaning.

[0007]

The vacuum cleaner of the present invention comprises:
In order to solve the above-mentioned problems, a suction port body having a built-in electric brush, a main body portion having a built-in electric blower, and an extension pipe connecting and connecting the suction port body and the main body portion are provided. The mass is set to 1 kg or less, and the mass ratio between the suction port body and the main body is set to 1/5 or less.

Accordingly, if the dust collection performance is improved and secured by the scraping force of the electric brush of the suction opening body, the electric blower can supply a sufficient amount of suction air to transfer the scraped dust to the dust collection case. Since it is good, the size and weight of the main body can be reduced, the weight at hand can be reduced to 1 kg or less, and the usability can be improved.

In addition, in the vacuum cleaner of the present invention, since the mass of the suction opening is less than one-fifth of the main body, that is, less than 200 g, even if the wall or ceiling is cleaned as it is, there is no fatigue. Therefore, it is particularly suitable for three-dimensional cleaning other than the floor surface.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is directed to a suction port body having a built-in electric brush, a main body portion having an electric blower and a dust collection section, a dust collection case, and the suction port body. And an extension pipe for connecting and connecting the main body portion and the total mass of the main body portion is set to 1 kg or less, and the suction port body is set to 1/5 or less of the total mass of the main body portion. Cleaning the walls and ceiling can be done without getting tired.

In the invention according to claim 2 of the present invention, since the handle portion is formed in the main body portion, the handle portion can be gripped and the main body can be moved, and the handle portion is provided for cleaning the wall surface and the ceiling. To move the suction port body.

In the invention according to claim 3 of the present invention, the handle portion is provided rearward of the electric blower, and the dust collecting portion is provided forward of the electric blower. The center of gravity of the portion is located rearward, and the center of gravity of the main body portion can be brought closer to the handle. Therefore,
When cleaning the ceiling while holding the handle and lifting the main body, the weight of the main body that hangs on the grip can be reduced because the center of gravity of the main body is closer to the handle, improving usability. .

In the invention according to a fourth aspect of the present invention, since the extension pipe is constituted by the intake passage and the conductor accommodating portion which is separated from the intake passage, electric power is supplied to the electric brush provided in the intake opening. The supply can be performed via a conductor,
Since the conductor is separated from the intake passage, the conductor is not adversely affected by dust and the ventilation resistance of the intake passage is not increased by the conductor, so the suction force is low and lightweight. And a small electric blower can be adopted.

According to a fifth aspect of the present invention, the dust collecting portion comprises a dust collecting case having a substantially mortar shape or a substantially cylindrical shape having a bottom, and a filter body covering an opening of the dust collecting case. Since the suction port is provided on the peripheral surface of the dust collecting case, the dust sucked from the peripheral surface of the dust collecting case turns spirally along the peripheral surface of the dust collecting case and descends to the bottom side of the dust collecting case.
Since the so-called cyclone system is used, clogging due to dust adhering to the filter body is reduced. Therefore, dust can be sufficiently sucked even when a light and small electric blower having a low suction force is adopted.

In the invention according to claim 6 of the present invention, since the dust collecting case is mounted in front of the electric blower via the filter body, the filter body of the dust collecting case is located above when cleaning the floor. The filter body is less likely to be clogged by dust, and when cleaning the ceiling, the filter body of the dust collection case is on the lower side.Due to the cyclone method described above, the dust moving to the filter body side is swirled. To prevent clogging of the filter.

[0016]

(Embodiment 1) Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a longitudinal sectional view of a main body portion and a main portion of a conductive extension tube, FIG. 2 is a vertical sectional view of a main portion of a conductive extension tube and a suction port, and FIG. 3 is an external side view.

As shown in FIG. 1 to FIG.
A suction unit 26 having a built-in electric blower 21 for generating a suction force supported by a support rubber 22 and having a receiving portion 25 at the upper end thereof for fitting with the insertion portion 24 of the conductive extension tube 23 in the front. Is formed. Contact plate 29 is provided in receiving portion 25
And the contact plate 29 is connected to the switch unit 27 and the electric wire 28.
Is connected to the power supply. A handle 30 is formed integrally with the rear end of the main body 20.

In front of the electric blower 21 built in the main body 20, a dust collecting case 32 to which a filter body 31 is attached is engaged with a locking portion 34 of the main body 20 at an engaging portion 33 at one end and provided at the other end. A buckle 35 is engaged with the concave portion 36 of the main body 20 and is detachably locked. An intake port 37 is provided on the peripheral surface of the substantially mortar-shaped dust collecting case 32, and the intake port 37 is formed at a position communicating with the suction section 26 integrally formed with the main body 20. By configuring the dust collecting case 32 in this manner, the dust sucked from the intake port 37 on the peripheral surface spirally turns along the peripheral surface of the dust collecting case 32 and moves to the bottom side of the dust collecting case 32. It is a so-called cyclone system that descends, so that the adhesion of dust to the filter body 31 can be reduced.

The conductive extension tube 23 is composed of a pipe body 39 provided with an insertion portion 24 at the end on the main body 20 side and a receiving portion 38 having the same shape as the receiving portion 25 of the main body 20 at the other end, and a cover body 40. I have. In the space between the pipe body 39 and the cover body 40, a connection terminal 41 which is in pressure contact with a contact plate 29 fixed to the receiving portion 25 is provided at an end of the main body 20 and a contact plate 42 identical to the contact plate 29 is provided at the other end. It is held and fixed together with an electric wire 43 connecting the connection terminal 41 and the contact plate 42.

Reference numeral 44 denotes a drive motor 4 via a belt body 45.
6 is a suction opening body that has a built-in electric brush 47 that is rotationally driven by 6 and that is pivotally supported on a connection pipe 48. The connection pipe 48 is provided with an insertion portion 49 having the same shape as the end of the conductive extension tube 23 on the main body side, the connection terminal 49 is held and fixed by a cover body 50, and the electric wire 51 is connected to the drive motor 46. The electric brush 47 is attached to the shaft 52 by a synthetic fiber 53.
The outermost peripheral end 54 is disposed so as to be in contact with the floor surface. Reference numeral 55 denotes a sliding body made of a raised cloth material acting as a cushioning material between itself and the floor.

The electric blower 21 comprises a fan section 56 and a motor 57 for driving the fan section 56. The motor blower 21 uses a low input type motor having a motor input of 40 W and a fan output of 20 W, so that the weight is about 250 g. Lightweight. The capacity of the dust collecting case 32 is about 0.6 L, which is smaller than that of a general household vacuum cleaner, about 1/3, and the outer wall thickness of the main body 20 is 1.6 mm on average. Therefore, the total weight of the main body 20 and the dust collecting case 32 is 1 kg or less.

Further, the width of the suction port body 44 is 120 mm, which is about half that of a general household vacuum cleaner popularized in Japan, the depth L is reduced to a minimum, and the pipe body 39 of the conductive extension pipe 23 is reduced. Connection pipe 4
Also, the insertion portion 49 of No. 8 can be downsized, and the weight is 200 g or less.

The operation of the above configuration will be described. Since the electric brush 47 has a configuration in which the outer peripheral portion is planted with synthetic fibers having elasticity, even if the outer peripheral end 54 is always in contact with the floor surface to be cleaned and is rotated, the floor surface is not damaged,
It enables dust to be absorbed by a scraping force on any floor surface. For this reason, the electric blower 21 only needs to have a suction force enough to carry the scraped-up dust to the dust collecting case 32 through the conductive extension tube 23. According to the experiment, it is practically equivalent to 10 W of pneumatic power. Therefore, the electric blower 21
Input can be reduced, and the size and weight can be reduced. In addition, if the width of the suction port body 44 is large, the range that can be cleaned by one operation is widened, but it is not convenient to clean a narrow place such as a corner. That is, in general, it is rather difficult to clean a narrow place such as a Japanese house, and the effect of giving priority to weight reduction is greater. In addition, since the suction air volume per unit width is increased by reducing the width, it is expected that dust collection performance at a lower input is improved.

If the weight of the suction opening 44 is 200 g or less and the total mass of the main body 20 and the dust collecting case 32 is 1 kg or less, even if the ceiling and the wall are cleaned as shown in FIG. It can be easily three-dimensionally cleaned without any pain. In addition, since the scraping force of the electric brush 47 can be applied not only to the floor but also to the ceiling and the wall, the usability can be improved without lowering the dust collecting performance. Of course, it is also possible to remove the suction port body 44 from the conductive extension pipe 23 and clean the same as in the conventional case, and further remove the conductive extension pipe 23 and attach the suction port body 44 directly to the main body 20 as shown in FIG. It can also be used as a hand type.

In this embodiment, the width of the suction port body 44 is reduced to reduce the weight. However, without reducing the width, the weight of the drive motor 46 or the weight of the outer material may be reduced. Any configuration may be used.

In this embodiment, an AC type electric blower 21 is used.
However, a DC-type electric blower may be a cordless type using a secondary battery as a power source, and may be reduced in weight using an NI-H (nickel-hydrogen) battery or the like.

Further, in this embodiment, the conductive extension tube 23 is formed integrally, but it may be formed by two joints, or may be formed so as to be expandable and contractible. And the electric wire 28 may be externally configured without being built in.

[0029]

As described above, according to the present invention, it is possible to obtain a lightweight suction port body and a main body part without lowering the dust collection performance by utilizing the scraping force of the electric brush. It is possible to obtain an electric vacuum cleaner having excellent usability for performing a typical cleaning.

[Brief description of the drawings]

FIG. 1 is a vertical cross-sectional view of the vicinity of a main body portion of a vacuum cleaner according to a first embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of a main part of a conductive extension pipe and a suction port body of the vacuum cleaner.

FIG. 3 is an external side view of the vacuum cleaner.

FIG. 4 is a side view showing a use state of the vacuum cleaner.

FIG. 5 is an external side view showing another usage state of the vacuum cleaner.

FIG. 6 is an external perspective view of a conventional vacuum cleaner.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 20 Main body 21 Electric blower 23 Conductive extension tube 32 Dust collection case 44 Suction port body 47 Electric brush

Claims (6)

[Claims] A suction port body having a built-in electric brush, a main body portion having an electric blower and a dust collecting portion, and an extension pipe connecting and connecting the suction port body and the main body portion. A vacuum cleaner having a mass of 1 kg or less, and wherein the suction opening body has a mass of approximately 1/5 or less of a total mass of the main body. 2. A body portion having a handle portion.
Vacuum cleaner as described. 3. The electric vacuum cleaner according to claim 2, wherein the handle portion is provided behind the electric blower, and the dust collecting portion is provided ahead of the electric blower. 4. The extension pipe according to claim 1, wherein the extension pipe includes an intake passage, and a conductor storage portion partitioned from the intake passage.
The vacuum cleaner according to claim 1. 5. A dust collecting section comprising a dust collecting case having a substantially mortar shape or a substantially cylindrical shape having a bottom, and a filter body covering an opening of the dust collecting case. The vacuum cleaner according to any one of claims 1 to 4, further comprising: 6. The electric vacuum cleaner according to claim 5, wherein a dust collecting case is mounted in front of the electric blower via a filter body.