WO1996008192A1

WO1996008192A1 - Cleaner and cleaning method

Info

Publication number: WO1996008192A1
Application number: PCT/JP1994/001518
Authority: WO
Inventors: Taiji Tajima; Shigesaburo Komatsu; Shigenori Satou; Yukiji Iwase; Masao Sunagawa; Waturu Yamamoto
Original assignee: Hitachi, Ltd.
Priority date: 1994-09-14
Filing date: 1994-09-14
Publication date: 1996-03-21
Also published as: KR960705497A; DE69431208T2; EP0728434A1; DE69431208D1; KR100344684B1; EP0728434A4; EP0728434B1

Abstract

A vacuum cleaner is such that any rotary brush, dispensed with a quiet suction body is provided. Gaps (suction nozzles) are provided in a front edge of the suction body facing a surface being cleaned, and a suction chamber formed by a smooth, continuous surface of a cylindrical shape is provided to extend from an end of the suction nozzle into the suction body. Suction is effected in the suction chamber by suction means whereby a swirling air flow is generated in a longitudinal direction of the suction body to cause the high speed air flow to separate and such dust from the surface being cleaned.

Description

Harm

Vacuum cleaner and cleaning method

Technical field

The present invention relates to a vacuum cleaner having a suction means and performing cleaning by sucking dust or the like on a cleaning surface.

Background art

Conventional vacuum cleaners are equipped with a rotating brush in the large suction chamber, especially in order to improve the suction performance of dust and the like on the vault. Many of them are driven by dedicated motors and air turbines. These vacuum cleaners are intended to improve the cleaning performance by raising and sucking up dust on the cleaning surface by the brush. It is.

For example, Japanese Patent Application Laid-Open No. Hei 12-97030 has a turbine that is re-rotated by a suction air flow, and the rotating brush is rotated by the turbine. It shows the technology of rotating vacuum cleaners. Japanese Patent Application Laid-Open No. 2-27424 / 18 discloses a technique of a vacuum cleaner for rotating a rotary brush by a brush motor.

On the other hand, Japanese Utility Model Application Laid-Open Publication No. 62-139450 discloses a dust suction device that generates a vortex having a central axis of rotation in a direction perpendicular to a cleaning surface inside a suction port. ing . The publication In the illustrated device, a cut-and-raised piece is provided at the suction port, and a vortex is generated by the cut-and-raised piece.

In the case of using the above-described conventional rotary brush, a rotary brush is provided in the suction port body, and a dedicated motor or air motor for driving the rotary brush. Since it is necessary to provide a bin, there was a problem that the weight of the suction inlet body increased, and at the same time, the shape became larger and the operability was deteriorated. In addition, the loud noises when rotating the brush and the vibration noise caused by contact with the clean surface (floor surface) are loud, which makes the vacuum cleaner unsatisfactory. It was a major cause.

Also, in the case of a device that generates a vortex having a central axis of rotation in a direction perpendicular to the cleaning surface, the shape of the opening surface of the suction port is practically close to 1 in aspect ratio, which is preferable. It must be circular. The suction port used in many conventional vacuum cleaners has a horizontally long shape, and can be moved in a direction that crosses the length of the suction port, resulting in a wide range of dust. Can be efficiently sucked. However, in order to efficiently suck a wide area in the shape of the suction port that generates the vortex, the suction port is enlarged while maintaining the above aspect ratio. It is necessary. Therefore, compared to the conventional horizontally long shape, the shape has to be made larger than necessary, and therefore the weight increases and the operation becomes difficult. There was. Also, with a circular inlet Had a problem in that it was not possible to efficiently suck the debris near the wall.

DISCLOSURE OF THE INVENTION

An object of the present invention is to provide a vacuum cleaner capable of reducing noise. Another object of the present invention is to provide a vacuum cleaner having a suction body that can be reduced in size and weight.

In order to achieve the above object, the present invention provides a suction body having a suction chamber having an opening facing a seeding surface, a fluid passage connecting the suction chamber and the outside of the suction body, In a vacuum cleaner comprising suction means for sucking the suction chamber through the fluid passage, the cleaner has a smooth continuous surface across the opening, and has a smooth surface extending from the continuous surface. The suction chamber including the flow path toward the cleaning surface, and a direction in which the connection surface of the suction chamber intersects with the opening due to a relationship between the lower surface of the suction main body and the cleaning surface. And a suction nozzle having a suction nozzle for guiding a fluid from the outside of the suction main body toward the flow path.

Further, the present invention provides a suction body having a suction chamber having an opening facing a cleaning surface, a fluid passage connecting the suction chamber and the outside of the suction body, and a fluid passage through the fluid passage. In a vacuum cleaner comprising suction means for sucking the suction chamber through the suction chamber, the continuous surface is formed by a smooth continuous surface across the opening. The suction chamber including a flow path from the suction surface to the cleaning surface, and the outside of the suction main body so as to be along a direction in which the continuous surface and the entrance cross each other toward the flow path. And a suction nozzle having a suction nozzle connected to the suction chamber.

Further, the present invention provides a suction main body having a suction chamber for enjoying an opening facing a cleaning surface, a fluid passage connecting the suction chamber and the outside of the suction main body, and a fluid passage through the fluid passage. In a vacuum cleaner comprising suction means for sucking the inside of the suction chamber through the suction chamber, a flow is formed from the continuous surface to the cleaning surface with a smooth continuous surface across the opening. A concave portion provided on the entire lower surface in a direction crossing the side from the side of the side so as to be along a side where the connecting surface and the joint intersect with the suction chamber including a passage; It is equipped with a suction body.

Further, the present invention provides a suction main body having a suction chamber having an opening facing a cleaning surface, a fluid passage connecting the suction chamber and the outside of the suction main body, and a fluid passage through the fluid passage. In a vacuum cleaner comprising suction means for sucking the inside of the suction chamber through the suction chamber, a flow is formed from the continuous surface to the cleaning surface with a smooth continuous surface across the opening. A suction section including a passage; a shielding section on a lower surface for suppressing fluid flowing into the suction chamber through a gap between the cleaning surface; a lower surface of the suction port body and the cleaning face; The suction is configured so as to follow a direction in which the continuous surface of the suction chamber and the opening intersect with each other, and guides a fluid from outside the suction body toward the flow path. It is provided with the suction main body provided with a nozzle and a nozzle.

Further, the present invention provides a suction main body having a suction chamber having an opening facing a cleaning surface, a fluid passage connecting the suction chamber to the outside of the suction main body, and the fluid passage. And a suction means for sucking the inside of the suction chamber by a suction means.The vacuum cleaner comprises a smooth continuous surface across the opening, and extends from the continuous surface to the cleaning surface. The suction chamber including the flow path, and a configuration in which the connection surface of the suction chamber and the opening intersect with each other by a relationship between a lower surface of the suction main body and the cleaning surface. A suction nozzle for guiding fluid from outside the suction body toward the flow path; and a space between the cleaning surface provided on the lower surface of the suction body and the cleaning surface to the suction chamber. A suction member provided with a shielding member for suppressing a flowing fluid; Since also example Bei the body Oh Ru.

Further, the present invention provides a suction main body having a suction chamber having an opening facing a cleaning surface, a fluid passage connecting the suction chamber and the outside of the suction main body, and a fluid passage through the fluid passage. Then, in a vacuum cleaner constituted by suction means for sucking the inside of the suction chamber, the continuous surface is constituted by a smooth continuous surface sandwiching the opening. A suction chamber including a flow path from the suction surface to the cleaning surface, and a shielding member having an opening along one side where the continuous surface and the entrance cross each other around the opening. And a suction body provided with the suction port.

Further, the present invention provides a suction main body having a suction chamber having an opening facing a cleaning surface, an air passage for kneading the suction chamber and the outside of the suction main body, and the air passage through the air passage. A suction nozzle which is provided along the opening in a vacuum cleaner comprising suction means for sucking the inside of the suction chamber, and which induces a straight airflow from outside the suction body to the suction chamber; A suction chamber having an inner surface for converting the kinetic energy of the straight airflow into rotational energy that generates a swirling flow in the longitudinal direction of the suction chamber; and a suction body provided with the suction chamber.

Also, the present invention provides a suction main body having a suction chamber having an opening facing an imaging surface, a fluid passage connecting the suction chamber and the outside of the suction main body, and the fluid In a vacuum cleaner comprising suction means for sucking the inside of the suction chamber through a passage, the suction chamber has an inner surface of a smooth connecting surface sandwiching the opening. The fluid passage connects the center of the suction chamber in the direction in which the speed control surface and the opening intersect with each other and the outside of the suction main body, and connects the fluid passage with the continuous surface in a range where the opening is provided. The lower surface in the direction crossing the side from one of the sides where the opening intersects A concave portion is formed as a whole, and is formed between the lower surface of the suction main body and the cleaning surface so as to surround the opening from one step formed by the concave portion to the other step. A rubber skirt that closes the gap is provided, and the suction body is moved smoothly on the lower surface on the opposite side of the recess formed on the lower surface of the suction body through the opening. The suction means is made up of an extension tube, a hose, and a blower connected to the fluid passage, and the suction chamber is sucked by the blower to suck the suction chamber. A symmetric continuous swirling airflow is generated from the end in the direction in which the connection surface of the chamber intersects with the opening toward the fluid passage.

Further, the present invention relates to a cleaning method for a vacuum cleaner comprising: a suction port main body having a suction chamber having an opening facing a cleaning surface; and suction means for suctioning the suction chamber. Then, in the suction chamber including the side of the opening along the longitudinal direction of the suction chamber, a swirling flow is generated in the longitudinal direction, and the swirling flow directly collides with the cleaning surface, and after the collision. In this way, the air stream is sucked as described above.

The means for generating the swirling flow includes: a smooth continuous kneading surface configured to sandwich an opening provided on a lower surface of the suction body (a surface facing the cleaning surface); And a suction nozzle that guides the fluid from outside the suction body. When the suction means sucks the inside of the suction chamber by the suction means, the suction nozzle guides the fluid straight from the outside of the suction main body into the suction chamber. The connecting surface changes the kinetic energy of the fluid guided to travel straight by the suction nozzle into rotary energy, whereby the fluid becomes a swirling flow.

In this case, the suction nozzle is provided so as to extend along a direction in which the connection surface and the opening intersect. The direction in which the continuous surface intersects with the opening is usually taken in the longitudinal direction of the inlet main body or the suction chamber or the opening.

When the opening on the suction chamber side of the fluid passage connecting the suction chamber and the outside of the suction main body is provided at the center in the longitudinal direction, the swirling flow flows from both ends in the longitudinal direction. Two symmetrical continuous swirling flows are directed toward the fluid passage opening at the center of the suction chamber. Further, when the fluid passage openings are provided at both end faces in the longitudinal direction of the suction chamber, the swirling flow is symmetrically connected from the center of the suction chamber to both end sides in the longitudinal direction. There are two swirling flows.

When the suction nozzle is provided on the lower surface of the suction main body, the suction nozzle can be configured by a relationship with a cleaning surface. For example, provided between the cleaning surface and the lower surface of the suction main body, which is configured along the longitudinal direction so as to be connected to the opening from the front or rear edge of the suction main body. According to the gap The fluid can be guided from the outside of the suction main body to the inside of the suction chamber while performing its direction. Here, the front edge portion or the rear edge portion refers to an outer peripheral portion of the lower surface of the suction main body, which is configured to extend in the longitudinal direction.

At this time, the fluid guided into the suction chamber needs to be guided from the tangential direction of the generated swirling flow in the direction of the swirling flow, and the external fluid from other than the suction nozzle is required. It is necessary to prevent the inflow of water. Therefore, when the suction nozzle is formed by the relationship between the lower surface of the suction main body and the cleaning surface, a gap is formed between the suction nozzle and the opening. The lower surface of the suction main body on the opposite side and on the side of the opening (both ends in the longitudinal direction) has a structure in which the fluid outside the suction main body is difficult to flow into the suction chamber. .

Also, the inflow of a fluid to the lower surface of the suction main body on the opposite side of the suction nozzle and opposite to the opening and at the side of the opening (both ends in the longitudinal direction) is prevented. You can set up an additional shielding member.

In addition, a concave portion is provided on the lower surface portion of the suction main body where the nozzle is formed so as to be connected to the opening from the front edge or the rear edge of the suction main body to the opening. By providing a portion, the suction nozzle may be configured.

The swirling flow flows from the continuous surface to the cleaning surface. (Flow path), and this flow plays the role of a rotary brush installed in the suction body of a conventional vacuum cleaner. That is, the swirling flow acts so as to strike the cleaning surface, and peels off debris from the cleaning surface.

The continuous surface constitutes a surface extending in the longitudinal direction of the suction chamber, but this surface is not necessarily required to have a cylindrical shape, and may have a rectangular column shape. In addition, since the suction nozzle is directed so as to guide the external fluid along the connecting surface, a swirling flow can be generated more effectively. it can .

Further, in the present invention, by providing a suction force control means for controlling the suction force of the suction means, it is possible to control the strength of the generated swirling flow. Wear . At this time, by providing a suction force indicating means for indicating the suction force from the original operation unit to the suction force control means, the operability of the vacuum cleaner can be improved. Wear . In this case, the suction force control means and the suction force indicating means may be connected to each other with a signal line or the like so as to indicate or may be instructed without connection. . Non-contact means include means using infrared rays, ultrasonic waves, radio waves, and the like. The fluid in the above description is such that the vacuum cleaner of the present invention is used in ordinary households. In some cases, it is air, but depending on the environment of use, it may be other gases or liquids. In addition, air, gases or liquids can trap dust and other debris or impurities. May be included.

BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a perspective view of a mouthpiece according to a first embodiment of the present invention.

FIG. 2 is an external view of a vacuum cleaner according to the present invention. FIG. 3 is a sectional view of the mouthpiece main body according to the first embodiment of the present invention.

FIG. 4 is a perspective view of the suction main body according to the first embodiment of the present invention as viewed from the upper surface side.

FIG. 5 is a cross-sectional view of the second suction main body of the first embodiment of the present invention.

FIG. 6 is a sectional view of a third suction main body according to the first embodiment of the present invention.

FIG. 7 is a cross-sectional view of a fourth suction main body according to the first embodiment of the present invention.

FIG. 8 is a perspective view of the suction main body according to the second embodiment of the present invention as viewed from the upper surface side.

FIG. 9 is a perspective view of the second suction main body of the second embodiment of the present invention as viewed from the upper surface side.

FIG. 10 is a sectional view of the mouthpiece main body showing one embodiment of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION [Example 1]

Hereinafter, a first embodiment of the present invention will be described in detail with reference to the drawings.

Figure 1 shows a perspective view of the suction body.

The suction body 101 placed on the floor surface 102 generates a swirling airflow 103 inside the suction body by suction means (not shown). . Reference numeral 104 denotes the central axis of the swirling airflow 103, reference numeral 105 denotes the suction chamber, and reference numeral 106 denotes the cultivation direction of the swirling airflow 103.

FIG. 2 shows the appearance of the vacuum cleaner of this embodiment.

A hose 202 is connected to the vacuum cleaner main body 201, and an extension pipe 204 and a suction main body 101 are kneaded to the end thereof. Further, a switch operation part 203 is arranged at the hose hand part.

FIG. 3 shows a cross-sectional view of the suction body 101 shown in FIG.

At the front edge of the suction main body 101, a space 302 is provided between the suction main body 101 and the floor 301 to form a suction nozzle. Smooth cylindrical connecting surface 30 from the end of suction nozzle 302 extending from the front of suction body 101 to the inside of suction body 101 6 is formed, and reaches the rear side of the suction body 101. As shown in the figure, it consists of a continuous surface The suction chamber has an opening facing the floor 301. Also, 303 is an imaginary cylinder, and 304 and 305 are arrows indicating the direction of air flow.

The suction body 101 and the extension pipe 204 are connected by a joint 109, and the extension pipe 204 is indicated by an arrow A with respect to the suction body 101. The angle can be changed in the direction. In addition, around the entrance formed by the suction chamber on the lower surface of the suction main body 101 where the suction nozzles 302 are not formed, the rear edge of the suction main body 101 may be provided. A cutout 307 for suppressing the inflow of the air is provided, and a rear edge of the lower surface of the suction main body 101 is provided with a roller 330 for facilitating the movement of the suction main body 101. Is provided. The scar 307 can be made of rubber, but can also be made of other elastic materials.

Fig. 4 shows a perspective view of the suction main body 101 viewed from the top side. In Fig. 4, both ends of the suction chamber in the longitudinal direction are provided with openings 4101 and 4 of the fluid passage 107. 0 2 is provided, and the fluid passage 1 07 extending from the opening 4 0 1 4 0 2 merges on the trailing edge side of the suction main body 1 0 1, and leads to the outside of the suction main body 10 1. Also, reference numerals 403 and 404 denote arrows indicating the direction of the air flow, and reference numeral 405 406 denotes a swirling airflow generated inside the suction chamber.

Next, the operation of the first embodiment of the present invention will be described. When the vacuum cleaner user operates the switch operation unit 203 of the hose hand unit, the vacuum cleaner body 201 operates in an operation mode according to the operated switch. The electric blower operates.

The suction force generated by the electric blower reaches the suction main body 101 through the hose 202 and the extension tube 204. As shown in FIG. 3, the suction main body 101 is always open as shown by the arrow 304 because the cheek nozzle (suction nozzle) 302 is open in one direction. It is sucked in the tangential direction of the virtual cylinder 303.

The speed of the sucked air is changed into a rotational angular velocity inside the suction port, and the air is rotated at a high speed in the direction of the arrow 3005 to blow off the dust on the floor surface 301. At the same time, as shown in FIG. 4, since the openings 401 and 402 of the fluid passage 107 are sucked by the opening I, the opening 40 is opened from the center in the longitudinal direction of the suction chamber. A velocity is generated in the direction toward 1,402 (the direction of 403,404). As a result, the inhaled airflow and debris have a center axis that is approximately the same as the floor surface 301. The swirling airflows 405 and 406 become parallel to each other, and are sucked into the cleaner main body 201 through the openings 401 and 402.

In other words, in this embodiment, two continuous swirling air flows from the center in the longitudinal direction to the end portion over almost the entire region in the longitudinal direction of the suction chamber. Produces. In the present embodiment, two openings (401, 02) of the fluid passage 107 were provided, and suction was performed from both ends of the suction chamber, but the openings 401, 402 were not opened. It is permissible to use one side, one side, and one side, and then absorb the bow. However, in this case, it is necessary to prevent air from flowing from the end face of the suction chamber where no nozzle is located.

In addition, as shown in FIG. 4, the suction nozzle 302 is formed on the entire front edge side of the suction chamber, but it is not always necessary to form the suction nozzle on the entire surface. However, it is also possible to open the central part only to increase the suction wind speed.

In addition, the suction nozzle 302 can be installed as shown in 501 in FIG. 5 to reverse the direction of rotation of the swirling airflow, and 6 in FIG. It may be installed on the upper surface as shown in FIG. 1, or as shown in 701, 702 in FIG. 7, the force may not be changed. Also in this case, the suction nozzles 501, 600, 700, and 702 may be formed on the entire surface in the longitudinal direction of the suction chamber, or may be formed on a part thereof. . 5, 6, and 7 show cross sections similar to FIG. 3, but the fluid passage 107, the opening to the extension pipe, and the like are omitted.

As described above, according to this embodiment, it is possible to generate a swirling airflow in which the center axis is substantially parallel to the surface to be cleaned, inside the suction port. Dust on the surface to be cleaned by high-speed wind Can be peeled off and sucked. Therefore, even if there is no rotary brush, it is possible to provide a light and quiet sound vacuum cleaner suction port having suction performance equal to or higher than the conventional one.

In addition, if means for transmitting the signal from the switch operation unit 203 to the cleaner body using infrared rays, ultrasonic waves, radio waves, or the like without using a signal line is provided, the hose 202 and the Eliminating the need for core wires around the inside of the extension tube 204, the extension tube and hose: ： are lighter in weight, and also have the effect of improving operability.

Also, since the hose does not need to be electrically connected to the joints at both ends, it has a relatively simple structure, and only the flexible part of the hose can be replaced without using any tools. Also has the effect of

[Example 2]

Hereinafter, a second embodiment of the present invention will be described in detail with reference to the drawings.

Figure 8 shows a perspective view from the top of the mouthpiece.

In FIG. 8, when the fluid passage 107 is connected to the longitudinal center of the suction chamber provided in the suction port body 81, the transverse direction of the suction chamber with respect to the longitudinal direction is used. Openings 802 and 803 connected to fluid passage 107 in the center That is, there are compartments. Further, a suction nozzle 302 is provided on the front edge side of the lower surface of the suction main body 801 similarly to FIG. Also, 804 and 805 are arrows indicating the direction of the air flow, 806 and 807 are swirling airflows, and 808 and 809 are the side surfaces that block the inflow of air. .

Next, the operation of the second embodiment of the present invention will be described.

When the vacuum cleaner user operates the switch operating section 203 of the hose hand, the vacuum cleaner main body 20 is operated in the Keisaku mode according to the operated switch. 1 electric blower operates.

The suction force generated by the electric blower passes through the hose 202 and the extension tube 204 and reaches the suction main body 81. The air sucked from the suction body 801 cannot flow in from the axial direction of the imaginary cylinder because the walls 808 and 809 at both ends are blocked, and the tangential line Limited to inflow from direction. Therefore, as in the first embodiment, the speed is changed to a rotational angular speed inside the suction chamber, and the air is rotated at a high speed to blow off dust on the floor surface.

At the same time, since the bows I come out from the openings 802 and 803, the speed in the axial direction 804 and 805 is generated, and the sucked airflow and debris eventually turn. The air flow becomes 806 and 807, and is sucked into the cleaner body 201 through the entrances 802 and 803. Also, the connection between the suction chamber and the fluid passage 107 in FIG. 8 may be as shown in FIG. That is, a shielding plate 92 is provided so as to divide the suction chamber into two chambers at the center in the longitudinal direction of the suction chamber. Then, an opening of the fluid passage 107 is provided at a position where the shielding plate 102 is provided so that each chamber can be sucked. This makes it possible to generate two swirling airflows 903; 906. Further, although the swirling airflow is weakened, it is possible to generate the swirling airflows 903 and 906 without providing the shielding plate 902.

As described above, according to the present embodiment, it is possible to generate a swirling airflow in which the central axis is substantially parallel to the cleaning surface in the suction main body. It is possible to peel off and remove the trash on the surface to be removed by the high-speed wind. Therefore, even without a rotary brush, it is possible to provide a vacuum cleaner that is lighter and quieter with a suction performance equal to or higher than that of conventional vacuum cleaners. .

In the embodiment shown in FIGS. 8 and 9, the suction chamber is provided from the end in the longitudinal direction to the center over almost the entire region in the longitudinal direction of the suction chamber. It produces two continuous swirling airflows towards the opening of the fluid passage.

Also, since the connection with the extension tube can be made at the center of the suction chamber, the fluid passage can be made short, and the pressure inside the suction body can be reduced. Since the power loss can be reduced and the suction body itself can be reduced in size, further improvement in operability has the effect.

Further, as shown in FIG. 10, the suction main body 101 has a hollow structure, and a continuous surface 300 of the suction chamber 101 A and a fluid passage 10 are formed by using the inner wall surface thereof. 1 B can be constructed. Further, the suction chamber and the fluid passage may be formed by using a member different from the suction main body 101.

Further, the suction main body that generates the swirling airflow according to the present invention can also use a rotary brush together.

The vacuum cleaner according to the present invention can generate a swirling airflow in the longitudinal direction of the suction chamber of the suction body, and peels off the dust on the surface to be cleaned by the high-speed wind. can do . Therefore, there is no need to provide a rotary brush, and a light and quiet sound cleaner can be provided.

Claims

The scope of the claims

1. A suction body having a suction chamber having an opening facing a cleaning surface, a fluid passage connecting the suction chamber to the outside of the suction body, and suctioning the suction chamber through the fluid passage. In the removal machine composed of the suction means

The suction chamber including a flow path from the speed control surface to the cleaning surface, the suction chamber being configured with a smooth connection surface across the inlet, the lower surface of the suction main body, and the cleaning surface And the fluid flow from the outside of the suction main body toward the flow path, along the direction in which the connecting surface of the suction chamber and the opening intersect with each other. A vacuum cleaner comprising a suction body having a suction nozzle for guiding air.

2. A suction main body having a suction chamber having an opening facing the cleaning surface, a fluid passage connecting the suction chamber to the outside of the suction main body, and suctioning the suction chamber through the fluid passage. In a vacuum cleaner comprising suction means,

The suction chamber including a flow path that is formed by a continuous surface that is smooth across the opening and that is directed from the continuous surface to the cleaning surface; the connection surface that is directed to the flow path; A vacuum cleaner having the suction body having a suction nozzle connecting the outside of the suction body and the suction chamber so as to be along a direction intersecting with the opening. .

3. The suction body having a suction chamber having an opening opposed to the cleaning surface, a fluid passage connecting the suction chamber and the outside of the suction body, and the suction chamber through the fluid passage. In a vacuum cleaner comprising suction means for suctioning,

The suction chamber including a flow path extending from the connection surface to the cleaning surface, the suction chamber being formed of a continuous connection surface across the opening, and the connection surface and the opening being formed by the connection surface; A vacuum cleaner characterized by comprising the suction body having a recess formed on the entire lower surface in a direction crossing the side from one of the sides so as to be along the intersecting side.

4. A suction body having a suction chamber having an opening facing the cleaning surface, a fluid passage connecting the suction chamber and the outside of the suction body, and suctioning the suction chamber through the fluid passage. In a vacuum cleaner consisting of suction means

The suction chamber including a flow path from the connecting surface to the cleaning surface, which is formed of a smooth continuous surface across the opening, and a suction surface from a gap between the cleaning surface and the lower surface. A shielding portion for suppressing fluid flowing into the chamber, and a direction in which the continuous surface of the suction chamber intersects with the opening due to the relationship between the lower surface of the suction main body and the cleaning surface. A suction nozzle configured to provide a suction nozzle for guiding a fluid from the outside of the suction body toward the flow path from the outside of the suction body.

5. A suction body having a suction chamber having an opening facing the cleaning surface, a fluid passage connecting the suction chamber and the outside of the suction body, and suctioning the suction chamber through the fluid passage. In a vacuum cleaner consisting of suction means

The suction chamber including a flow path that is formed of a continuous surface that is smooth across the opening and that is directed from the continuous surface to the cleaning surface; and a lower surface of the suction opening body and the cleaning surface. According to the relationship, the fluid is guided from the outside of the suction main body toward the flow path so as to be along a direction in which the connection surface of the suction chamber intersects with the opening. A suction nozzle provided on the lower surface of the suction main body and a shielding member for suppressing fluid flowing into the suction chamber from a gap between the cleaning surface and the suction nozzle. Vacuum cleaner characterized by the following.

6. A suction body having a suction chamber having an opening facing the cleaning surface, a fluid passage connecting the suction chamber to the outside of the suction body, and suctioning the suction chamber through the fluid passage. In a vacuum cleaner consisting of suction means,

The suction chamber including a flow passage extending from the connection surface to the cleaning surface, the suction chamber being constituted by a smooth kneading surface sandwiching the opening, and the connection surface being formed at a turn of the opening. And a shielding member having an opening along one side where the opening and the opening intersect with each other.

7. The fluid passage is connected to the center of the suction chamber in the direction in which the connection surface intersects with the opening, and is symmetrical from the end of the suction chamber in the direction toward the fluid passage. The vacuum cleaner according to any one of claims 1 to 6, wherein a continuous swirling airflow is generated.

8. The fluid passage is branched, and the ends of the branched fluid passages are respectively connected to both end faces of the suction chamber in a direction where the continuous surface and the entrance cross each other. The vacuum cleaner according to any one of claims 1 to 6, wherein a symmetrical speedy swirling airflow is generated from a central portion of the direction toward the fluid passage.

9. A suction body having a suction chamber having an opening facing a cleaning surface, an air passage connecting the suction chamber to the outside of the suction body, and suctioning the suction chamber through the air passage. In a vacuum cleaner composed of suction means and

A suction nozzle provided along the opening to guide a straight airflow from the outside of the suction body to the suction chamber; and a kinetic energy of the straight airflow in the longitudinal direction of the suction chamber. A vacuum cleaner characterized by having a suction body with a suction chamber with an inner surface that converts the flow into rotary energy that generates a flow.

10. A suction force control means for controlling a suction force of the suction means is provided. Vacuum cleaner according to.

11. The vacuum cleaner according to claim 10, wherein suction force indicating means for indicating the suction force without being connected to the suction force control means is provided in a hand operation unit.

A suction main body having a suction chamber having an opening opposed to a cleaning surface, a fluid passage connecting the suction chamber and the outside of the suction main body, and the fluid passage. In a vacuum cleaner comprising suction means for sucking the suction chamber,

The suction chamber is configured to have an inner surface of a smooth connecting surface sandwiching the opening,

The fluid passage connects the center of the direction in which the connection surface of the suction chamber intersects with the opening and the outside of the suction port main body,

A recess is formed on the entire lower surface in a direction crossing the side from one of the sides where the gate and the opening intersect with each other in a range where the entrance is provided;

A rubber ska that closes a space between the lower surface of the suction main body and the cleaning surface so as to surround the entrance from one step by the recess toward the other step. Set up

On the lower surface on the opposite side of the recess formed on the lower surface of the mouth main body through the opening, a stove for smoothing the movement of the suction main body is provided.

An elongate tube and an e to connect the suction means to the fluid passage And a blower.

By suctioning the inside of the suction chamber by the blower, a symmetrical connection from the end side of the direction in which the continuous surface of the suction chamber intersects with the opening toward the fluid passage is provided. Vacuum cleaner characterized by generating swirling airflow.

13. A cleaning method for a vacuum cleaner comprising: a suction main body having a suction chamber having an opening facing a cleaning surface; and suction means for suctioning the suction chamber.

A swirl flow is generated in the suction chamber including the side of the opening along the longitudinal direction of the suction chamber in the longitudinal direction, and the swirl flow is caused to directly collide with a cleaning surface, and the air flow after the collision is generated. Cleaning method as described above, wherein the suction is performed as described above.