JP3457864B2 - Suction port of vacuum cleaner and vacuum cleaner - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an electric vacuum cleaner and
The present invention relates to a suction port body used in this vacuum cleaner .

[0002]

2. Description of the Related Art In the suction inlet of a conventional vacuum cleaner,
There is a type in which a rotary cleaning body, which is a so-called rotary brush, is provided in the main body case of the suction port body, and the suction port body travels on the floor surface while rotating the rotary cleaning body for cleaning. And, as a drive source for rotating the rotary cleaning body in the suction port body of this type, an electric motor or a drive fan rotated by an intake air flow is used, and the rotational force of these electric motor or drive fan is changed to a belt or the like. It is designed to rotate through. However, if an electric motor or a drive fan is used as a drive source, a space for accommodating the electric motor, the drive fan, the belt, etc. is required in the main body case, which makes the size large and the structure complicated and costly. is there.

Further, as described above, without using a motor and a drive fan which are separate from the rotary cleaning body, fans are provided integrally with the rotary cleaning body at both ends of the rotary cleaning body, and an air intake is provided at the upper rear part of the main body case. There is a type in which an inlet is provided and air is taken in from this air inlet by negative pressure generated when the electric vacuum cleaner operates, that is, suction force, and applied to the fan blades of the fan to rotate the rotary cleaning body.

However, although this one has the advantage that a separate electric motor and drive fan are not required, since the fans are provided at both ends of the rotary cleaning member, the blades provided on the rotary cleaning member are The case cannot be brought close to both side walls. That is, since the fans are provided at both ends of the rotary cleaning body, the blades cannot be provided at the parts of the fan. Therefore, it becomes impossible to clean the surface to be cleaned corresponding to both sides of the main body case, which causes a problem that dust cannot be well sucked in particularly when cleaning a wall or a corner of a room that is difficult to clean. is there. Further, since the air taken in from the air intake provided in the upper rear part of the main body case is applied to the fan blades of the fan to rotate the rotary cleaning body, this air is made to act only on the rotation of the fan. Therefore, the dust collection efficiency is lowered.

[0005]

As described above, in the conventional suction port body, in which the electric motor and the drive fan are used as the drive source separately from the rotary cleaning body, the electric motor, the drive fan and the belt are provided in the main body case. Since it requires a space for accommodating the like, there is a problem that the size becomes large, the structure becomes complicated, and the cost becomes expensive.

Further, in the case where the fans are integrally provided at both ends of the rotary cleaning body, there is an advantage that an electric motor and a driving fan which are separate from the rotary cleaning body are not required, but the surface to be cleaned corresponding to both sides of the main body case is provided. There is a problem in that cleaning cannot be performed, and there is a problem in that the air that rotates the fan only acts on the rotation of the fan, which lowers the dust collection efficiency.

[0007]

The present invention has been made in view of the above circumstances, and the invention according to claim 1 communicates with a suction port opened on a surface facing a surface to be cleaned.
A body case having a suction chamber which, rotating in the suction chamber
The shaft member and a plurality of blades provided along the axial direction of the shaft member so as to extend to both ends thereof are disposed on the surface to be cleaned by the tip portion of the blade.
A rotating cleaning body that knocks out or scrapes off existing dust ,
A suction port body of a vacuum cleaner comprising, a blade
When the rotary cleaning body is rotated by hitting
Both directly or after hitting the blade the swept
Air intake that allows air to be blown into the removal surface
Is provided below the axis of the rotary cleaning body in the main body case so as to face the blade, and is opened to the front side, and flows in from the air intake port.
The air that acts to rotate the rotary cleaning body is
So that it doesn't get in the way of the air intake opening
To the opening of the air intake of the body case.
It is provided above the opening in a region above
It is characterized by that.

According to the first aspect of the present invention, since both ends of the rotary cleaning member can be brought close to both end walls of the main body case , the rotary cleaning member can be cleaned to the vicinity of both end walls of the main body case. It is a thing. Further, since the air inlet is provided below the axis of the rotary cleaning body, the air flowing in from the air inlet hits the blade and is also blown to the surface to be cleaned, so that dust is removed from the surface to be cleaned. It has an effect of contributing to dust absorption such as floating. Further, since the air intake is provided below the axis of the rotary cleaning body, the air sucked acts to rotate the rotary cleaning body, and the air sucked from the suction port also rotates. The rotating force of the rotary cleaning body can be increased because it acts so as to rotate. Furthermore, since it is not necessary to separately provide a drive source for driving the rotary cleaning member, the structure can be simplified and the size and weight can be reduced.

[0009]

In addition, the invention according to claim 1 is the air intake.
It flows from the mouth and acts to rotate the rotary cleaning body.
Air is not blocked from flowing into the air intake opening.
The projection that you want to
It is provided above the opening in a region above
From when the projecting portion of the front surface of the suction port body is in contact with the walls of the room, preventing the opening to form a gap is closed by the wall between the wall and the air inlet opening by the protrusion Therefore, it has an effect that dust near the wall can be surely absorbed.

According to a second aspect of the present invention, in the first aspect of the present invention, the air intake port is a suction port body of an electric vacuum cleaner formed by a concave groove portion whose surface to be cleaned is opened. Is.

According to the second aspect of the present invention, since the air to be applied to the blade flows through the concave groove portion whose surface to be cleaned is opened, the air is dust existing on the surface to be cleaned. Has a function of floating up from the surface to be cleaned and also contributing to dust absorption such as sucking dust existing in front of the main body case.

[0013] The invention of claim 3, wherein the claim 1 or
Others in the invention 2, wherein the air inlet is obtained by the suction mouth of the electric vacuum cleaner which is formed near both end portions of the main body case.

According to the third aspect of the invention, the air sucked from the air inlets formed in the vicinity of the both ends of the main body case can efficiently suck the dust at the both ends , and the dust can be absorbed from the both ends to the central portion. the air flow headed, and sends the scooped up the dust in the blade from the surface being cleaned in a central portion, an air flow flowing toward the center from the act to float up dust present on the surface to be cleaned In addition, it has an effect that the dust absorption efficiency can be improved. Further, in the electric vacuum cleaner according to the invention of claim 4 , the connection port is
A book that is provided and contains an electric blower inside
Body, suction hose connected to the connection port, and this hose
Connected to the body via an extension tube connected to the
The suction port body according to any one of claims 1 to 3.
It is characterized by having and. This vacuum cleaner
Is equipped with the suction port body according to claim 1.
And has the same action as the invention described in claims 1 to 3.
It is a thing.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of the present invention will be described with reference to FIGS.

FIG. 1 is a perspective view showing a state in which the suction port body to which the present invention is applied is connected to an electric vacuum cleaner via a suction hose and an extension pipe.

As shown in FIG. 1, the main body 2 of the electric vacuum cleaner 1
Is provided with a connection port 3 in the front thereof, and although not shown in the body 2, a dust collection chamber communicating with the connection port 3 and an electric blower chamber formed on the downstream side of the dust collection chamber. And a dust collecting device is housed in the dust collecting chamber, and an electric blower is housed in the electric blower chamber.

Traveling wheels 4 are attached to both sides of the rear portion of the main body 2, and swivel wheels 5 are attached to the front bottom portion. Further, a carrying handle 6 for carrying the electric vacuum cleaner 1 is provided on the upper portion of the main body 2, and an exhaust port (not shown) is provided on the rear wall.

Further, one end of a suction hose 7 is connected to the connection port 3, and a connection portion 8 having a handle 9 is provided on the other end of the suction hose 7. A plurality of switch buttons 9a for controlling the output of the electric blower (not shown) are provided at the front portion of the handle 9 at the connecting portion 8, and the closing signal of these switch buttons 9a is the suction signal. It is sent to a control means ( not shown) via a signal line wired in the hose 7, and the electric blower is controlled by the control of this control means.

An extension pipe 10 is connected to the connecting portion 8, and another extension pipe 1 is connected to the extension pipe 10.
1 is connected to the extension pipe 11, and the floor brush 20 serving as the suction port body is connected to the extension pipe 11.

Next, the floor brush 20 will be described with reference to FIGS.

As shown in FIGS. 2 and 5, the floor brush 20 is
A main body case 21, a connecting pipe 23, and a rotary cleaning body 50, which are composed of an upper case 30 and a lower case 40 integrally connected to the upper case 30 by screws (not shown).
Etc.

2 and 3, the upper case 30 has a rectangular projection from the top surface, has an opening 31 (see FIG. 5) at the bottom, and has a ceiling wall 32. This ceiling wall 32 It has a bottomed box shape with a bottom wall. Further, as shown in FIG. 5, a connection piece 33a is formed on the rear side of the upper case 30, that is, the intermediate portion on the side where the connection pipe 23 is provided, so as to project rearward. The connection portion 3a is formed by the connection piece 43a formed by projecting rearward in the intermediate portion on the rear side of the lower case 40.
3 is formed. In addition, the upper and lower wall surfaces inside the connecting portion 33 are formed into curved surfaces, and bearings (not shown) are provided on the surfaces facing each other in the longitudinal direction (the longitudinal direction of the upper case 30). The connecting portion 33 is formed by connecting the upper case 30 and the lower case 40 with the screw (not shown).

The extension pipe 1 is attached to the connecting portion 33.
It is attached connecting pipe 23 which is detachably connected to the 1
There is. A hollow cylindrical portion 23 slidable on the curved upper and lower wall surfaces (not shown) of the connecting portion 33 is provided at the tip of the connecting pipe 23.
A is formed, and a shaft (not shown) that is axially supported by a bearing provided in the connection portion 33 is provided . By connecting the shaft to the bearing so as to be supported, the connecting pipe 23 can be rotated in the vertical direction with respect to the main body case 21.

Further, as shown in FIG. 3, bearing mounting portions (not shown) for mounting the bearings 35 are provided on both longitudinal end walls of the upper case 30.

Next, as shown in FIG. 4, the lower case 40 has a rectangular projection from the bottom surface, and an opening 41 (see FIG. 5) corresponding to the opening 31 of the upper case 30 is formed on the upper side. In addition to being formed, it is formed in the shape of a box with a bottom having a bottom wall 42 that is an opposing surface that opposes the surface to be cleaned formed in a flat surface. A rectangular suction port 44 is formed in the bottom wall 42 as shown in FIG . Since both longitudinal ends of the suction port 44 are formed in the vicinity of both end walls of the lower case 40, the suction port 44 can be positioned up to the wall during cleaning, and dust on the wall can be reliably sucked. It has become.

Further, on both end walls in the longitudinal direction of the lower case 40 ,
Is a bearing mounting portion (not shown) for mounting the bearing 35.
It is provided. This bearing mounting portion and the upper case 30
With the bearing mounting portion provided in the above, when the upper case 30 and the lower case 40 are coupled, the bearing 35 is clamped and mounted.

Further, the connecting piece 43a is formed at the rear intermediate portion of the lower case 40 so as to project rearward,
The connection piece 43a and the connection piece 33a of the upper case 30
And the hollow cylindrical portion 2 of the connecting pipe 23 as described above
A connection portion 33 for attaching 3a is formed.

Further, air inlets 47 are formed in the vicinity of both ends of the front wall 46 of the lower case 40, and the air inlets 47 are continuous with the front wall 46 of the lower case 40 as shown in FIG. A bent piece 47a extending inward is formed, and side plates 47b are provided on both sides of the bent piece 47a. The side surface 47b and the bent piece 47a form a surface F to be cleaned. It is formed in a recessed groove portion whose side is open. Further, the opening 47c of the air intake 47 is formed in the lower case 4
0, that is, an opening is made on the front surface of the main body case 21. Further, as shown in FIG. 5, the air intake port 47 is formed at a portion located closer to the bottom wall 42 side than the axis P of the rotary cleaning body 50, that is, the shaft member 55, which will be described in detail later.
The rotary cleaning body 50 rotates counterclockwise in FIG. 5, that is, in the direction of the arrow in FIG. 5, so that the air flowing in from the air intake 47 rotates the rotary cleaning body 50 and the surface F to be cleaned. It also acts to lift the dust existing on the surface F from the surface to be cleaned F, that is, it also functions to increase the dust absorption efficiency.

Then, the upper case 30 and the lower case 40 are joined by screws (not shown) to form the main body case 21, that is, to assemble the upper case 30.
Main body case 2 assembled by the lower case 40 and
A suction chamber 22 is formed inside the suction chamber 22.
Communicates with the inside of the suction port 44 and the connecting portion 33 and the inside of the connecting pipe 23.

Further, as shown in FIG. 5, a bumper 60, which is sandwiched between the opening edge of the opening 31 of the upper case 30 and the opening edge of the opening 41 of the lower case 40 and serves as a protrusion made of, for example, rubber, is shown in FIG. 3, as shown in FIG. 4, it is attached around the main body case 21 except for a part on the rear side.
As shown in FIG. 5, the bumper 60 projects forward from the outer surface of the main body case 21 by the wall thickness dimension T, whereby the front surface of the main body case 21 approaches the wall of the room during cleaning and the bumper 60 is When abutting against the wall, the wall and the front surface of the front wall 46 of the main body case 21, that is, the opening 47c.
A gap of approximately the wall thickness dimension T is secured between and.

Therefore, even if the bumper 60 of the main body case 21 comes into contact with the wall of the room during the cleaning, the above-mentioned gap of about T dimension is secured between the front wall 46 and the wall of the room. The opening 47c is not blocked by the wall, and the flow of air through the opening 47c is not hindered.

Next, the rotary cleaning body 50 arranged in the suction chamber 22 of the main body case 21 will be described.

As shown in FIG. 5, the rotary cleaning body 50 has a hollow shaft 55, a cylindrical blade shaft 51 having a through hole 51a into which the shaft 55 is inserted, and the blade shaft. A blade body 5 including a plurality of blades (11 in FIG. 5) 52 integrally formed on the outer periphery of the blade 51.
It consists of three. In addition, the shaft 55 and the blade shaft 51 constitute a shaft member.

The blade body 53 is made of soft vinyl chloride or soft rubber, and when the rotary cleaning body 50 rotates, the blade 52 functions to knock out or scrape out the dust present on the surface to be cleaned. . Further, the blade 52 is formed in a circular arc shape that is convex in the rotation direction (the direction of the arrow in FIG. 5) as shown in FIG. 5, and therefore the side facing the air intake 47 is a concave curved surface. It is what

The rotary cleaning body 50 is assembled by press-fitting the shaft 55 into the through hole 51a of the blade shaft 51 and adhering it with an adhesive so as to be integrated. The shaft 55 and the blade shaft 51 may be integrated by molding.

Further, the rotary cleaning body 50 is disposed in the suction chamber 22 by connecting the both ends of the shaft 55 to the main body by the bearing mounting portions of the upper case 30 and the lower case 40 which are connected to each other. The bearing 3 attached to the case 21
5 is rotatably supported on the shaft 5.

Then, the rotary cleaning body 50 is connected to the suction chamber 22.
At least one of the blades 52 is disposed inside the air intake port 4 formed in the lower case 40.
7, the air flowing from the air intake 47 is blown against the opposing blade 52, and the blade 52 receives the pressure of this air. Rotate in the direction. This rotation causes the next blade 52 to face the air intake 47, and
Similarly, since the pressure of the air flowing in from the air intake 47 is received, the rotary cleaning body 50 rotates in the direction of the arrow in FIG. In this way, the blades 52 are successively exposed to the air and the rotary cleaning body 50 continues to rotate.

When the rotary cleaning body 50 rotates, dust existing on the surface F to be cleaned is hit or scraped off by the tip of the blade 52 and floats from the surface to be cleaned, and the dust is sucked from the suction port 44. Along with the sucked air, the suction chamber 22, the connecting portion 33, the connecting pipe 23, the extension pipe 1
It is sucked into the dust collecting chamber (not shown) through the suction nozzles 1, 10 and the suction hose 7, the dust is removed by the dust collecting device, and the air is exhausted to the outside from the exhaust port (not shown).

Further, the air flowing in from the air intake port 47 hits the blade 52 to generate a rotational force on the rotary cleaning body 50, and at the same time, it is blown to the surface to be cleaned F and the dust existing on the surface to be cleaned F is lifted up. Since it acts so that it can work together with the air sucked from the suction port 43, the dust suction efficiency can be improved.

Next, the operation of the suction port body 20 thus constructed will be described.

First, at the time of use, as shown in FIG. 1, the suction hose 7, the extension pipes 10 and 11 are connected to the vacuum cleaner 1, the suction port body 20 is connected to the extension pipe 11, and the connecting portion is connected. A predetermined switch button 9a among the plurality of switch buttons 9a provided on the switch 8 is closed to drive an electric blower (not shown) to clean the suction port body 20 while traveling on the surface to be cleaned.

When the electric blower is driven, the dust collection chamber becomes negative pressure, and air is sucked together with dust from the suction port 44 of the suction port body 20, and the dust is removed by the dust collector.
Air is exhausted from the exhaust port.

Further, as the dust collecting chamber becomes negative pressure,
Since the suction chamber 22 formed in the upper case 30 also has a negative pressure and air is sucked from the suction port 44, air also flows into the suction chamber 22 from the air intake port 47 and hits the blade 52. The rotary cleaning body 50 rotates, and the tip of the blade 52 knocks out or scrapes off the dust present on the surface to be cleaned . This dust is suction chamber 22, connecting pipe 2
3 through to extension tube 11 and 10, is sucked into the dust collecting chamber through the suction hose 7, the dust as described above are those cleaned are removed by the dust collector is made.

Then, as described above, the front wall 46 of the main body case 21 is provided with the air intake 47 through which air is introduced toward the blade 52 below the shaft 55, that is, the axis P of the rotary cleaning body 50. By applying the air flowing in from the air intake 47 to the blade 52, the rotary cleaning member 5
Since 0 is rotated, it is not necessary to provide a fan at both ends of the rotary cleaning body as in the conventional case, so that both ends of the rotary cleaning body 50 can be brought close to both side walls of the main body case 21, that is, near both ends. With blade 52
Can be provided up to both ends of the blade shaft 53, and both longitudinal ends of the suction port 44 can be provided near both ends of the main body case 21. Therefore, the blade 52 can be provided up to both ends of the suction port 44. Since it can be positioned, both ends of the main body case 21 can be cleaned well.

Further, since the air intake 47 is provided below the axis of the rotary cleaning body 50, the air flowing from the air intake 47 rotates the rotary cleaning body 50, and this air is Since the dust can be blown directly or after hitting the blade 52 onto the surface F to be cleaned, dust can be lifted from the surface F to be cleaned and thus can contribute to dust absorption. Therefore, it can be combined with the air sucked from the suction port 44. Therefore, the dust absorption efficiency can be improved.

Further, since the air intake port 47 is provided below the axis P of the rotary cleaning body 50, the air sucked in as described above acts to rotate the rotary cleaning body 50. The air sucked from the suction port 44 also acts to rotate the rotary cleaning body 50, so that the rotational force of the rotary cleaning body 50 can be increased.

Furthermore, since it is not necessary to separately provide a drive source for driving the rotary cleaning body 50, the structure can be simplified and the size and weight can be reduced.

Further, the air intake port 4 of the main body case 21.
Since the bumper 60 protruding forward from the front surface of the main body case 21, that is, the opening 47c is provided at a position above 7, the bumper 60 contacts the wall even when the suction port body 20 approaches the wall of the room. Since a gap is secured between the wall and the opening 47c, the opening 47c can be prevented from being blocked by the wall, and dust on the wall can be reliably absorbed.

Further, since the air intake 47 is formed in the bottom wall 42 of the lower case 40 by the concave groove portion whose surface F to be cleaned is opened, the air to be applied to the blade flows from the air intake 47. For this reason, this air can contribute to the dust absorption existing on the surface to be cleaned F by lifting it from the surface F to be cleaned, and also absorbing the dust existing in front of the main body case, thereby improving the dust absorption efficiency. be able to.

Further, since the air intake 47 is formed in the main body case 21 in the vicinity of both ends in the longitudinal direction, it is possible to surely absorb dust at both ends in the longitudinal direction of the main body case on the surface to be cleaned, and at the same time, the air intake The air sucked from the inlet 47 flows from both end sides of the suction chamber 22 toward the central portion, that is, the communication portion with the connecting portion 33. At this time, the air flow flowing from both end sides toward the central portion causes the air to be covered. The dust blown out or scraped off by the blade from the cleaning surface can be sent to the central portion, and the airflow flowing toward the central portion acts to lift the dust existing on the surface to be cleaned F. The dust collection efficiency can be improved.

In the above embodiment, the air intake 47 is opened on the surface F to be cleaned by the bent piece 47a formed on the front wall 46 and the side plates 47b provided on both sides of the bent piece 47a. The bottom wall 42 of the lower case 40 is formed thicker, and a groove 147 is formed on the bottom wall 42 so that the surface F to be cleaned is opened. However, the groove 147 may be formed in a concave groove portion. In FIG. 6, the same parts as those in the above embodiment are designated by the same reference numerals.

Further, in the above-mentioned embodiment, the air intake port 47 is constituted by the concave groove portion whose surface F to be cleaned is opened. However, this is the bottom of the lower case 41 from the axis of the rotary cleaning body 50. If it is a wall side part, the front wall 4 of the lower case 40
6 may be formed by a through hole. Even when the air intake port is formed by a through hole as described above, the rotary cleaning body 50 rotates counterclockwise in FIG. The surface to be cleaned F after hitting at least the blade 52 of the air flowing in from the intake port
Since the dust is blown onto the surface F, the dust existing on the surface to be cleaned F is acted to float up, so that the dust absorption efficiency can be improved. However, in the case where the air intake 47 is configured by the concave groove portion whose side to be cleaned F is opened as in the above embodiment, the surface F to be cleaned is passed when passing through the concave groove portion.
Since it flows along the upper surface (in the case of a carpet, a part thereof flows inside the fluff), there is an advantage that dust existing on the surface F to be cleaned can be efficiently absorbed.

Further, in the above-mentioned embodiment, the air intake port 47 is formed at a portion near both longitudinal ends of the main body case 21, that is, the lower case 40. However, this is not limited to this portion, for example. It may be formed at a portion of the intermediate portion in the longitudinal direction. However, when it is formed in the vicinity of both ends in the longitudinal direction as in the above embodiment, it is possible to surely absorb the dust on both ends in the longitudinal direction of the main body case of the surface to be cleaned F as described above. There are advantages.

Further, in the above-mentioned embodiment, the bumper 60 as the protrusion is provided on the periphery except a part of the rear side of the main body case 21. This is because the air intake 47 is the wall of the room. From the viewpoint of preventing clogging by the front wall 46, it may be provided only on the front wall 46.
The protrusion may be formed by a protrusion formed in the vicinity of the upper portion of the air intake port 47 without forming a strip shape.

[0056]

[Effect of the Invention] originating configurations claims 1 described as above
Ming has the effect of cleaning up to the vicinity of both end walls of the main body case . Further, the air that has flowed in from the air intake port is also blown to the surface to be cleaned after hitting the blade, which has the effect that dust can be lifted from the surface to be cleaned and thus contribute to dust absorption. Also,
The sucked air acts to rotate the rotary cleaning body, and the air sucked from the suction port also acts to rotate the rotary cleaning body, so that the rotating force of the rotary cleaning body can be increased. Is. Furthermore, since it is not necessary to separately provide a drive source for driving the rotary cleaning body, the structure can be simplified and the size can be reduced.
This has the effect of reducing the weight.

In addition, according to the first aspect of the invention, when the projection on the front surface of the suction port body comes into contact with the wall of the room, the projection forms a gap between the wall and the opening of the air intake. However, there is an effect that the opening can be prevented from being blocked by the wall, and dust on the wall can be surely absorbed.

The invention according to claim 2 is the surface to be cleaned side.
The air that hits the blade flows through the concave groove that opens, so that this air lifts the dust existing on the surface to be cleaned from the surface to be cleaned and also sucks the dust existing in front of the main body case. It has an effect of contributing to uniform dust absorption.

The invention according to claim 3 is the body case.
The air sucked from the air inlets formed near both ends of the can efficiently absorb dust at both ends, and
The air flow flowing from both ends toward the center sends the dust scraped up by the blade from the surface to be cleaned to the center part, and the air flow flowing toward the center causes the dust existing on the surface to be lifted up. from acting on,
It has an effect that the dust absorption efficiency can be improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state in which a suction port body to which the present invention is applied is connected to an electric vacuum cleaner.

FIG. 2 is a perspective view of the suction port body showing the embodiment of the present invention.

FIG. 3 is a plan view of the suction port body according to the above embodiment.

FIG. 4 is a bottom view of the suction port body according to the above embodiment.

FIG. 5 is a cross-sectional view (cross-sectional view taken along line XX in FIG. 3) of a part of the suction port body according to the above-described embodiment.

FIG. 6 is a partial view showing another embodiment of the air intake port of the suction port body of the above embodiment, (A) is a sectional view, and (B) is a perspective view.

[Explanation of symbols]

1 Vacuum Cleaner 2 Main Body 3 of Vacuum Cleaner 3 Connection Port 7 Suction Hose 10, 11 Extension Tube 20 Suction Port Body 21 Main Body Case 22 Suction Chamber 23 Connection Pipe 30 Upper Case (Part of Main Body Case) 40 Lower Case (Main Body Case) 42 a bottom wall of the lower case (a surface facing the surface to be cleaned) 44 a suction port 46 a front wall of the lower case 47 an air intake 47c an opening of the air intake 50 a rotary cleaning body P an axis 51 of the rotary cleaning body Blade shaft (part of shaft member) 52 Blade 55 Shaft (part of shaft member) 60 Protrusion

Claims (4)

(57) [Claims] 1. A suction port and an opening opened on the surface facing the surface to be cleaned.
And a main body case having a suction chamber communicating with the suction port, a rotatably disposed inside the suction chamber, and a shaft member and a compound member provided along the axial direction of the shaft member and extending to both ends.
A number of blades, depending on the tip of the blade.
Knock out or scratch the dust present on the surface to be cleaned.
A rotary cleaning body out, a suction port body of a vacuum cleaner comprising a rotating the rotary cleaning body by impinging on the blade
When it is rolled, it hits the blade directly or on the blade.
Air to be blown into the surface to be cleaned
The intake air, so as to face the blade, rotating the rotary cleaning body said with located below the axial center of the rotary cleaning body to the main body casing provided with an opening on the front side, flows from inlet the air It
The air that acts to cause it to flow into the opening of the air intake.
The main body is provided with a protrusion that prevents it from being blocked.
This is located at a position above the opening of the air intake of the case.
The suction port body of the electric vacuum cleaner, which is provided so as to project forward from the opening . 2. The invention according to claim 1, wherein the air
The intake is formed by a grooved part with the surface to be cleaned open.
The suction body of the vacuum cleaner characterized in that 3. The invention according to claim 1 or 2,
The air intake is formed near both ends of the body case.
The suction port body of the electric vacuum cleaner characterized by that. 4. A connection port is provided and is electrically fed inside.
In the main body that stores the blower, the suction hose connected to the connection port, and this hose
Connected to the body via an extension pipe connected
An electric vacuum cleaner comprising: the suction port body according to any one of 1 to 3 ;