JP3300573B2 - Suction body of vacuum cleaner and vacuum cleaner having the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used for a vacuum cleaner.
Suction body and a vacuum cleaner provided with the suction body
You.

[0002]

2. Description of the Related Art A conventional vacuum cleaner includes a power brush for rotating a cleaning body by a small motor provided inside the suction body, and an air turbine provided inside the suction body. Accordingly, a turbine brush for rotating a cleaning body has been put to practical use.

[0003] The power brush has a problem that the small motor is heavy and the motor of the power brush does not stop when an infant accidentally inserts a finger into the rotary cleaning body, thereby damaging the finger. Recently, a mouthpiece using a turbine brush has been used.

[0004]

However, in the suction body using the air turbine, the rotation transmission between the air turbine and the rotary cleaning body is performed by using a belt, which causes a problem that the suction body itself becomes large. However, the required number of rotations of the turbine when the suction body is brought into close contact with the cleaning surface and when the suction body is lifted up have characteristics opposite to each other, which is not preferable.

[0005] In particular, the latter problem has a contradictory problem that when the rotation speed of the air turbine is increased to improve the cleaning function of the suction body, a loud noise is generated when the suction body is lifted.

An object of the present invention, as well as reducing the size of the suction body using air turbine, the suction body of the electric vacuum cleaner to prevent noise generated when lifting the suction body,及
An object of the present invention is to provide a vacuum cleaner having a mouthpiece .

[0007]

[MEANS FOR SOLVING THE PROBLEMS] To achieve the above object
The feature of the present invention is that it has a suction port on the lower surface
A suction body formed by arranging the upper case on the lower case,
A rotary cleaning member disposed at a suction port of the suction port main body;
A suction port cover for covering an upper part of the cleaning body, and a rotation of the rotary cleaning body;
Located on the same axis as the rotation axis and outside the rotary cleaning body, and
Driving means for driving the rotary cleaning body with an airflow,
A suction joint having a suction passage arranged in the suction main body;
The upper case, lower case, and suction port cover
At least two or more intake airs for flowing air into the driving means
The mouth was arranged. In addition, the features of the present invention
Rollers are placed on the lower case, which has a suction port on the lower surface.
A suction body formed and provided, and a suction port of the suction body.
The provided rotary cleaning body, and the same axis as the rotary axis of the rotary cleaning body.
Above the rotary cleaning body and the rotary cleaning
Driving means for driving a body by an air flow, and the suction body
A suction joint having a suction passage arranged in the
The air for rotating the driving means flows through the upper case.
An intake port for intake, and an intake port different from the intake port
The mouth is arranged on the mouthpiece body. In addition,
The feature of the light is that the lower casing has a suction port on the lower surface.
A suction body formed by disposing an upper case on
A rotary cleaning body disposed at a suction port of a main body, and the rotary cleaning body;
Located outside the rotary cleaning body on the same axis as the rotary axis of
Driving means for driving the rotary cleaning body by air flow
And a suction passage disposed downstream of the suction main body.
A suction joint, and
An air inlet through which air flows in, and the driving means is divided into two parts.
And the driving means is disposed outside of the two divided driving means.
The air from the intake port flows into the driving means,
Air from the drive means into the inner drive means
That is.

[0008]

According to this structure, since the rotary cleaning body can be directly driven by the turbine, the size of the suction body can be reduced and the rotation noise can be reduced.

[0009]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 14 is a perspective view showing the external appearance of a vacuum cleaner according to one embodiment of the present invention. Reference numeral 201 denotes a vacuum cleaner main body in which a control circuit, an electric blower, and the like are built, and 202 denotes a vacuum cleaner main body. The hose connected to the suction port, 203 is a hose hand that is gripped by the user and connects the hose to one end, 204 is an extension tube connected to the other end of the hose hand 203, and 205 is an extension tube 204. Connected mouthpiece, 20
6 is a switch operation unit provided on the hose hand unit 203,
Reference numeral 207 denotes a first infrared light emitting portion provided on the hose hand portion 703, 208 denotes a second infrared light emitting portion provided on the hose hand portion 203, and 209 denotes an infrared light receiving portion provided on the upper surface of the cleaner main body 201. There is a ceiling 210 in the room.

Next, the operation of the electric vacuum cleaner according to the present invention will be described.
When one of the switch operation units 206 provided in the first unit is pressed, a signal code corresponding to the pressed switch is converted into an infrared signal as the first infrared light emitting unit 207 and the second infrared light emitting unit 20.
Emitted from 8.

The first infrared light emitting section 207 is disposed so as to face substantially vertically upward in a normal use state, and an infrared signal radiated from the first infrared light emitting section 207 is transmitted to a ceiling or a wall of a room. The light is reflected and reaches the infrared light receiving unit 209 of the cleaner body 201.

Further, the second infrared light emitting section 208 is disposed on the grip end of the hose hand portion so as to face downward from substantially horizontal, and the infrared signal emitted from the second infrared light emitting section 208 is It directly reaches the infrared light receiving unit 209 of the cleaner main body 201. The infrared signal that has reached the infrared light receiving unit 209 controls the vacuum cleaner via a control circuit built in the cleaner main body 201.

As described above, the vacuum cleaner according to this embodiment transmits the operation information input by the user to the cleaner main body 201 using an infrared signal to control the vacuum cleaner. Since a power supply line is not used for the hose 202, the weight of the hose can be reduced.

The mouthpiece used in such a vacuum cleaner is
A type in which a cleaning body is rotated by using a turbine rotated by a suction airflow of an electric blower as a driving source is mainly used.

This embodiment relates to the improvement of such a mouthpiece. FIG. 1 shows a mouthpiece 2 according to an embodiment of the present invention.
2, FIG. 2 is a sectional view taken along the line AOA of FIG. 1, FIG. 3 is a top view of the suction body 205 with the suction port cover 106 removed, and FIG. 4 is a rear view of the suction body 205 in FIG. FIG. 5 is a top view of the mouthpiece 205, and FIG.
FIG.

In FIG. 1 to FIG. 6, a suction body 101 serving as a skeleton of a suction body 205 is divided into upper and lower parts at a substantially central height position, and a lower case 102 forming an outer shell is formed.
And an upper case 103 disposed at the upper rear of the lower case 102.

A shock absorbing bumper 104 is attached to the outer periphery of the position where the lower case 102 and the upper case 103 come into contact with each other to maintain airtightness and prevent damage to furniture and the like.

At the upper front of the suction body 101, a suction cover 106 for covering the rotary cleaning body 115 is detachably provided.

A casing 107 is provided at the rear end of the suction main body 101 so as to be rotatable up and down, and a rotatable suction joint 108 is connected to the front end thereof.

In the lower case 102, as shown in FIG.
A pair of front wheels 109 and a pair of rear wheels 110 so as to move the entire suction body 205 in the front-rear direction and maintain a constant distance between the lower surface of the suction body 205 and the cleaning surface, and a cleaning surface during use of the cleaner. Roller 111 for receiving the pressure with respect to.

In addition, before and after the lower case 102, a suction port 1 is provided.
Pressure control plates 112 and 113 for holding the suction pressure in
Are arranged.

Here, the front wheel 109 and the rear wheel 110 are arranged at positions facing each other.

A pair of opening / closing levers 114 that slide in the lateral direction are provided inside the suction port cover 106, and can be detached from the lower case 102 and the upper case 103 by operating these levers.

Inside the mouthpiece 205, a rotary cleaning body 115 for scraping dust, wiping a cleaning surface, and the like is provided. The rotary cleaning member 115 is formed by alternately arranging a soft brush and a hard brush in a groove formed of metal such as aluminum, and a rotary shaft 116 is press-fitted at both ends thereof, and is rotated by a slide bearing 117. It is freely supported. This rotary cleaning body 115 may be formed of resin.

The sliding bearing 117 is press-fitted into a bearing cover 118 and is held by a pair of opposed supporting ribs 119 provided on the lower case 102.

The rotary cleaning body 115 used in the present embodiment is formed by twisting from both ends toward the center. Further, the two rotating shafts 116 press-fitted at both ends of the rotating cleaning body 115 have a turbine 120A.
Is inserted.

Further, a turbine 120B is provided so as to face the turbine 120A, and the two turbines 120A and 120B constitute the turbine 120. The joint surface between the turbine 120A and the turbine 120B is firmly fixed by ultrasonic welding.

The turbine 120 used in this embodiment is
Thus, the two turbines 120A and 120B
By this, it becomes easy to create a mold for molding the turbine.

Next, the means for rotating the rotary cleaning body 115 will be described. FIG. 7 is a sectional view taken along the line BB of the suction body 205 in FIG. 1, FIG. 8 is a rear view of the suction port cover 106, and FIG. FIG. 10 is a sectional view taken along line DD in FIG. 8, and FIG. 11 is a sectional view taken along line EE in FIG. As shown in FIG. 7, the mouthpiece 205 of this embodiment is
Nozzles 121, 1 for blowing air toward
22 (hereinafter, referred to as multi-blade nozzles 121 and 122) are arranged so as to substantially cover the outer periphery of the turbine 120.

The multi-blade nozzles 121 and 122 are arranged so as to be divided into upper and lower parts.
As shown in FIGS. 8 and 11, the lower multi-blade nozzle 122 is fixed to the lower case 1 as shown in FIGS.
02 is fixed by screws 124. Here, the multi-blade nozzles 121 and 122 are arranged so as to blow air to the turbine 120 </ b> B.
It moves by 20A and flows into the suction port 105.

As described above, a pair of front wheels and 10
9 and a pair of rear wheels 110 are located so as to keep a constant clearance between the suction port 105 below the turbine 120 and the cleaning floor.

Next, the operation for rotating the rotary cleaning body 115 will be described. As shown in FIGS. 3 and 4, the air blown to the turbine 120 is made of a large number of air blowers provided at the rear of the upper case 103 of the suction body 205. Air is sucked in from a rear intake port 125 having a ventilation hole and an upper intake port 126 having a large number of ventilation holes provided above the upper case 103 of the suction body 205.

Rear inlet 125 and upper inlet 126
Are the corners of the air inlet (the rear end of the rear air inlet 125 and the upper end of the upper air inlet 126) to ensure the strength of the air inlet itself.
The air holes are not formed in the holes. This allows
The strength of the suction port itself having a large number of ventilation holes can be ensured.

FIG. 12 is a cross-sectional view of the rear intake port 125. The rear intake port 125 is formed so as to be approximately half the plate thickness of the upper case 103, and the upper case 103 having a reduced plate thickness is formed. A vent hole 127 is formed in the intake port of the air conditioner.

A thick rib 10 is provided between the intake ports.
Since the 3A is formed, even when an impact is applied to the vicinity of the rear intake port 125 or the upper intake port 126, it is protected by the thick rib 103A, so that the damage of the thin intake port can be prevented. it can. The rib 10
Since the rib 3A itself is connected between the rib 103A and the rib 103A by a thin intake port, the rigidity of the rib 103A itself can be secured.

Further, since the ventilation hole 127 is formed integrally with the intake port of the upper case 103 so that a separate member is not used, the disassembling time of the port body can be shortened, and the recyclability is improved.

As shown in FIG. 1, the air sucked from the rear air inlet 125 and the upper air inlet 126 is divided into a partition wall 128A formed by the front walls of the lower case 102 and the upper case 103, and a lower case 128A. A ventilation path 129A is formed by the outer wall of 102 and the outer wall of upper case 103.

A partition wall 128B and a ventilation path 129B are similarly formed on the front side of the rotary cleaning body 115.

As shown in FIGS. 1 and 7, the air sucked from the air holes of the rear air inlet 125 and the upper air inlet 126 passes through a ventilation passage 129A and is guided by a guide wall 130 formed integrally with the lower case 102. It is narrowed down, guided to the multi-blade nozzles 121 and 122, and blown to the turbine 120.

Most of the air sucked from the rear inlet 125 and the upper inlet 126 is supplied to the multi-blade nozzle 121.
Of the multi-blade nozzle 121 and the multi-blade nozzle 122, almost no air flows.

Therefore, in this embodiment, air is also supplied to the front side of the multi-blade nozzle 121 and the multi-blade nozzle 122 to
In order to improve the torque of the rotating body 20 (rotary cleaning body 115), an air inlet 131 is provided on the side surface of the suction body 205 (suction port cover 106) as shown in FIGS.

Further, a notch 13 is formed at the front of the lower surface of the mouthpiece.
2 is provided, the air sucked from the notch 132 is guided to the multi-blade nozzle 122, and the turbine 120 (the rotary cleaning body 1) is provided.
15) The torque is improved.

By providing the air inlet 131, air also flows to the front side of the multi-blade nozzle 121 and to the multi-blade nozzle 122, and the turbine 120 (the rotary cleaning body 11).
5) It is possible to improve the torque. The number and positions of the air introduction holes can be appropriately selected as needed. For example, an air introduction hole may be provided in the suction port cover 106 located above the turbine 120, guided to the multi-blade nozzle 121, and blown to the turbine 120.

The air blown to the turbine 120 flows through the turbine 120 as shown in FIG.
5 and is guided to the cleaner body through a casing 107 and a suction joint 108 located substantially at the center of the suction port 105.

On the other hand, the air containing dust is guided from the suction port 105 through the casing 107 and the suction port joint 108 to the cleaner body.

In the suction body 205 of the present embodiment, the air sucked from the ventilation holes of the rear suction port 125 and the upper suction port 126 of the suction body flows into the turbine 120, and the casing 107, the suction port and the suction port substantially from the center of the suction port 105. Since the air is sucked into the cleaner body through the joint 108, the air moves to the center while rotating at high speed in the suction port 105, and a swirling flow is generated.

According to this embodiment, the rear intake port 1 of the intake body is provided.
Since the turbine 120 and the cleaning body are rotated by the air sucked from the air holes 25 and the upper air inlet 126, and furthermore, the synergistic effect of the swirling flow generated in the air inlet 105 allows the dust to be absorbed while the dust on the cleaning surface is wound up. Dust collection performance can be greatly improved.

Further, the twisting direction of the rotary cleaning body 115 is twisted in a direction along the velocity vector of the swirling flow of the air flowing from the turbine 120 into the suction port 115. Therefore, the twisted shape of the rotary cleaning body 115 is
It has a substantially V-shape around the vicinity of 7.

In the mouthpiece of this embodiment, when the mouthpiece is lifted from the cleaning surface during use, most of the air is sucked in from the suction port 105, and the rear suction port 125 and the upper suction port of the suction body. Since the amount of air sucked from the ventilation holes 126 decreases, the rotation speed of the turbine 120 and the rotary cleaning body 115 decreases.

Thus, it is possible to eliminate the drawback of the conventional air turbine type suction body in which the load is reduced and the air turbine rotates at high speed to generate noise.

Further, the suction body of this embodiment automatically changes the turbine 120 and the rotary cleaning body 115 depending on the type of the cleaning surface.
Is changed.

For example, when the cleaning surface is a floor or a tatami mat, the front wheel 109 and the rear wheel 110 provided on the lower surface of the suction body 205 and the roller 111 are used to connect the lower surface of the suction body 205 to the floor surface. Alternatively, a predetermined gap is formed in the tatami mat, the amount of air sucked from the suction port 105 increases, and the amount of air sucked from the ventilation holes of the rear suction port 125 and the upper suction port 126 of the suction body decreases.
Since the number of rotations of the rotating cleaning member 115 is reduced, the floor surface can be prevented from being damaged by the rotating cleaning member 115.

As described above, the mouthpiece of this embodiment is
Pressure control plates 112 and 113 are provided on the lower surface of the mouthpiece. The pressure control plate located behind the suction body
Both ends of the turbine 113 are the turbine 1 as shown in FIGS.
The cutout 20 is provided notched inward from the position of the radial extension where the cutout 20 is disposed. The pressure control plate is provided to keep the inside of the suction port airtight when the cleaning surface is brought into contact with the suction body. When the cleaning surface is a floor or a folding surface, the pressure control plate maintains the airtightness and the turbine 120 , The amount of air blown to the rotating cleaning member 115 is rotated at a high speed. If the rotary cleaning body 115 rotates at a high speed, the floor surface will be damaged. Therefore, both ends of the pressure control plate 113 are cut off to reduce the amount of air blown to the turbine 120. Notches of the pressure control plate are not limited to both ends, but may be provided at a plurality of locations with a certain interval.

When the cleaning surface is carpet, the lower surface of the suction body 205 is in close contact with the carpet, and the suction port 105 is closed.
Reduces the amount of air sucked in from the rear intake port of the suction body
Since the amount of air sucked from the ventilation holes of the upper air inlet 125 and the upper air inlet 126 increases, the turbine 120 and the rotary cleaning body 11 are increased.
As the number of rotations increases, a swirling flow is generated.

As a result, the dust on the carpet can be scraped out by the rotary cleaning member 115, and the dust can be wound up by the swirling flow, thereby improving the dust collection efficiency.

As described above, in the suction body of this embodiment, the rotation speed of the turbine 120 and the rotary cleaning body 115 automatically changes depending on the type of the cleaning surface. This eliminates the need for a switching lever for manually switching the amount of air blown to the air turbine in accordance with the cleaning surface required for the body, thereby improving operability.

The front wheel 1 is provided on the lower surface of the mouthpiece of this embodiment.
09 and rear wheels 110 are five-point wheels in which rollers 111 are disposed at radially extending portions of the left and right turbines 120 and at the rear central portion, respectively.

This is because when the contact surface between the lower surface of the suction body and the cleaning surface becomes unstable, the amount of air flowing through the turbines 120 disposed on the left and right sides of the rotary cleaning body 115 becomes non-uniform,
The rotation speeds of the rotary cleaning body 115 and the turbine 120 become unstable (the torque fluctuates), and the dust collection efficiency decreases.

Therefore, a five-point wheel is used to stably maintain the contact surface between the lower surface of the suction body and the cleaning surface so that air flows uniformly through the turbine 120.

As a result, the amount of air flowing through the left and right turbines 120 becomes substantially uniform, the rotation speeds of the rotary cleaning body 115 and the turbine 120 are stabilized, and a reduction in dust collection efficiency can be prevented.

Next, a method of maintaining the mouthpiece of the present embodiment will be described.

As described above, the mouthpiece 205 of this embodiment is provided above the suction port 105 of the mouthpiece.
6 are provided. The suction port cover 106 has an opening / closing lever 114 that slides laterally inside the suction port cover 106, and by operating this, the lower case 1
02 and the upper case 103. In addition, a concave portion 133 is formed on a side surface of the suction body 205 (suction port cover 106). Then, the suction port cover 10
In order to remove 6, the index finger or the middle finger is first inserted into the concave portion 133, the thumb is hooked on the opening / closing lever 114, and the opening / closing lever 114 is slid outward to release the engagement. Remove while picking. At this time, since the multi-blade nozzle 121 is fixed to the back surface of the suction port cover 106 and the multi-blade nozzle 122 is also screwed to the lower case 102, the rotary cleaning body 115 and the turbine 12
Cleaning is possible by removing only 0, and the usability is extremely good.

According to the present embodiment, since the concave portion 133 is provided on the side surface of the suction body 205 (suction port cover 106), the index finger or the middle finger is inserted into the concave portion 133, and the thumb is hooked on the opening / closing lever 114. , Opening and closing lever 114
Is disengaged by sliding outwardly, and is gripped with the thumb and the index finger (middle finger), and the suction port cover 106 is moved to the suction body 2.
05 can be easily removed.

Further, according to the present embodiment, since the opening / closing lever 114 that slides in the lateral direction is provided inside the suction port cover 106, the opening / closing lever 114 is exposed to external force even when it comes into contact with furniture during cleaning. 114 can be protected.

Further, according to the present embodiment, the rotary cleaning body 115 using a metal for the rotating shaft can be easily removed together with the turbine 120, so that the disassembling time of the mouthpiece can be reduced, and the metal portion and the plastic portion can be removed. Can be separated, so that the recyclability can be greatly improved.

[0067]

According to the present invention, the upper case is driven by airflow.
It is necessary to arrange an air inlet for inflowing air into the moving drive means.
So that when the suction body is lifted,
The amount of air flowing in from the inlet increases
Since the number of rotations of the driving means can be reduced,
Noise generated when lifting the body can be suppressed
You. Further, according to the present invention, the upper case, the lower case, the suction port
Air flows into the drive means into at least two of the covers
The intake port that changes
Can be Further, according to the present invention, the upper case
In addition, an air inlet for introducing air into the driving means is arranged,
A drive in which a suction port different from the suction port is provided in the suction port main body.
The torque of the moving means can be improved.

[Brief description of the drawings]

FIG. 1 is a top sectional view of a mouthpiece 205 according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line AOA in FIG.

FIG. 3 is a top view of the suction body 205 with the suction port cover 106 removed.

FIG. 4 is a rear view of the mouthpiece 205 in FIG.

FIG. 5 is a top view of the mouthpiece 205.

FIG. 6 is a bottom view of the mouthpiece 205.

FIG. 7 is a cross-sectional view taken along the line BB of the mouthpiece 205 of FIG.

FIG. 8 is a rear view of the suction port cover 106 of the suction body 205.

9 is a rear view of the suction port cover 106 (partly a cross-sectional view taken along line CC in FIG. 5).

FIG. 10 is a sectional view taken along the line DD in FIG. 8;

11 is a sectional view taken along the line EE in FIG. 8;

FIG. 12 is a partially enlarged view of a rear intake port 125;

FIG. 13 is a side view of the mouthpiece 205.

FIG. 14 is a perspective view showing the appearance of a vacuum cleaner according to one embodiment of the present invention.

[Explanation of symbols]

101: suction body, 102: lower case, 103: upper case, 105: suction port, 106: suction port cover, 107 ...
Casing, 108 ... Suction joint, 109 ... Front wheel, 11
0: rear wheel, 111: roller, 114: open / close lever,
115 ... rotating cleaning body, 116 ... rotating shaft, 120 ... turbine, 121, 122 ... multi-blade nozzle, 125 ... rear intake port,
126: upper intake port, 128A, 128B: partition wall, 1
29A, 129B ... ventilation path, 130 ... guide wall, 131 ...
Air inlet 132, notch, 133, concave, 201
.., Vacuum cleaner body, 202, hose, 203, hose hand, 204, extension tube, 205, suction body, 206, switch operation unit, 207, first infrared light emitting unit, 208, second infrared light emitting unit, 209 , 210 ... indoor ceiling.

Continued on the front page (72) Inventor Taiji Tajima 502, Kandate-cho, Tsuchiura-city, Ibaraki Pref.Hitachi, Ltd.Mechanical Research Laboratory Co., Ltd. ) Inventor Naoto Tsuruta 4-6 Kanda Surugadai, Chiyoda-ku, Tokyo Hitachi, Ltd. (56) References JP-A-5-176870 (JP, A) Japanese Utility Model Application 57-69665 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) A47L 9/04

Claims (6)

(57) [Claims] 1. A suction body formed by arranging an upper case on a lower case having a suction port on a lower surface, a rotary cleaning body provided at a suction port of the suction body, and A suction port cover located on the front side and covering an upper part of the rotary cleaning body, a pair of driving means disposed at both ends of a rotary shaft of the rotary cleaning body for driving the rotary cleaning body by air flow, A casing having a suction passage disposed substantially at the center of the suction port on the downstream side of the suction main body, a suction joint provided on the downstream side of the casing, and a pair of the suction pipes provided on the upper case. And a ventilation path for guiding the air taken in from the intake port to the pair of driving means, respectively, wherein the pair of driving means includes the upper case and the lower case. Formed with case
The air cleaner is arranged at a position communicating with the suction port, and the air passing through the pair of driving means is turned around the rotary cleaning body and guided to the suction passage of the casing. The mouthpiece of the machine. 2. A suction body formed by arranging an upper case in a lower case having a suction port on a lower surface, a rotary cleaning member rotatably disposed in a suction port of the suction body, and A suction port cover which is located on the front side of the case and covers an upper portion of the rotary cleaning body; A pair of drive means, a casing having a suction passage disposed substantially at the center of the suction port on the downstream side of the suction main body, a suction joint provided on the downstream side of the casing, and the upper casing; And a suction port provided at an upper portion and a rear portion of the source for sucking air to be supplied to the pair of driving means, and the upper port for guiding air sucked from the suction port to the pair of driving means, respectively. and a ventilation passage formed by the case and the lower case, driving of the pair Stage of forming in the upper case and the lower case
The air passing through the pair of drive means is formed into a swirling flow in the suction port and guided to the suction passage of the casing. The mouthpiece of the machine. 3. A suction body formed by arranging an upper case on a lower case having a suction port on a lower surface, and a rotary cleaning body rotatably supported by the suction port of the suction body. A suction port cover which is located on the front side of the upper case and covers an upper portion of the rotary cleaning body; and a suction port cover which is disposed at both ends of a rotary shaft of the rotary cleaning body for driving the rotary cleaning body with an air flow. A pair of drive means, a casing having a suction passage disposed substantially at the center of the suction port on the downstream side of the suction main body, a suction joint provided on the downstream side of the casing, and the upper casing; A suction port that is provided at an upper portion and a rear portion on both sides of the casing in the housing, and that sucks air to be supplied to the pair of driving means, and the air sucked from the suction port to one of the pair of driving means. A first ventilation path for guiding air and air taken in from the air inlet; The second leading to the other of the pair of drive means
And the pair of driving means are formed by the upper case and the lower case.
The air passing through the pair of driving means is arranged at a position communicating with the suction port to be swirled in the suction port, winds up dust on a cleaning surface, and is guided to the suction passage of the casing. A mouthpiece for a vacuum cleaner. 4. A suction unit having a cleaner main body having a built-in electric blower, driving means communicating with the cleaner main body, driven by airflow generated by the electric blower, and a rotary cleaning body driven by the drive means. A suction body, wherein the suction body is provided at a suction case formed by arranging an upper case on a lower case having a suction hole on a lower surface, and a suction body of the suction body. A rotary cleaning body, a suction port cover located on the front side of the upper case and covering an upper portion of the rotary cleaning body, and disposed at both ends of a rotary shaft of the rotary cleaning body, and the rotary cleaning body is air-flowed. A pair of driving means for driving, a casing having a suction passage disposed substantially at the center of the suction port on the downstream side of the suction main body, and a suction joint disposed on the downstream side of the casing; , Provided in the upper case and provided to the pair of driving means. An air inlet for sucking air to be supplied, and a ventilation path for guiding the air sucked from the air inlet to the pair of driving means, respectively, and the pair of driving means is
A place communicating with the suction port formed by the base and the lower case.
The vacuum cleaner is arranged in such a manner that the air passing through the pair of driving means is turned around the rotary cleaning body and guided to a suction passage of the casing. 5. A suction unit comprising: a cleaner main body having a built-in electric blower; driving means communicating with the cleaner main body and driven by an air flow generated by the electric blower; and a rotary cleaning body driven by the drive means. A suction body, wherein the suction body is formed by arranging an upper case on a lower case having a suction port on a lower surface, and the suction body is rotatable about a suction port of the suction body. A rotary cleaning body, a suction port cover located in front of the upper case and covering an upper part of the rotary cleaning body, and coaxially disposed at both ends of a rotary shaft of the rotary cleaning body; A pair of driving means for driving the rotary cleaning body by an air flow, a casing having a suction passage disposed at a substantially central portion of the suction port on the downstream side of the suction main body, and a downstream side of the casing; A suction joint disposed on the upper case
A suction port provided at an upper portion and a rear portion of the air supply port for sucking air supplied to the pair of driving means; and the upper case for guiding air sucked from the suction port to the pair of driving means, respectively. And a ventilation path formed by a lower case, wherein the pair of driving means are formed by the upper case and the lower case.
The air passing through the pair of drive means is arranged at a position communicating with the inside of the suction port formed, and is configured to be swirled at the suction port and guided to the suction passage of the casing. And vacuum cleaner. 6. A suction unit comprising: a cleaner main body having a built-in electric blower; driving means communicating with the cleaner main body, driven by airflow generated by the electric blower; and a rotary cleaning body driven by the drive means. A suction body, wherein the suction body is formed by arranging an upper case on a lower case having a suction port on a lower surface, and the suction body is rotatable about a suction port of the suction body. A rotary cleaning body pivotally mounted on the rotary cleaning body, a suction port cover positioned in front of the upper case and covering an upper portion of the rotary cleaning body, and disposed at both ends of a rotary shaft of the rotary cleaning body; A pair of driving means for driving the rotary cleaning body by an air flow, a casing having a suction passage disposed at a substantially central portion of the suction port on the downstream side of the suction main body, and a downstream side of the casing; A suction joint disposed in the upper case and the case in the upper case. A suction port provided at an upper portion and a rear portion on both sides of the pair of driving members, for taking in air to be supplied to the pair of drive means, and a first guide port for guiding air taken from the suction port to one of the pair of drive means. A second path for guiding air taken in from the air inlet to the other of the pair of driving means;
And the pair of driving means is provided in the upper case.
And a position communicating with the suction port formed by the lower case.
The vacuum cleaner is arranged so that the air that has passed through the pair of driving means forms a swirling flow in the suction port, winds up dust on a cleaning surface, and is guided to the suction passage of the casing. .