JPH10165336A - Suction nozzle body for vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a suction nozzle body for a vacuum cleaner which facilitates the recognition of the rotating state of a rotary cleaning body and increases the efficiency of cleaning. SOLUTION: This cleaner is so constituted that a first rotary blade 63 and a second rotary blade 64 are rotatably journalled in such a state as being faced to the bottom of a case body 15. An air turbine 37 which is rotated by intake from an air inlet 44 and rotates the first rotary blade 63 and the second rotary blade 64 is journalled to the case body 15. A disc rotary body 92 is journalled to the top end part of a shaft body for journalling the air turbine 37. Different colors 93a, 93b are painted on the top surface of the rotary body 92. A window part 95 which is positioned in a part matched with the colored positions of the rotary body 92 and closed by a light transmitting member 94 is boredly formed in the top main body case 13. In cleaning, the rotary body 92 is rotated with the rotation of the air blade 37 by suction. The exposure of the colored parts of the rotary body 92 through the window part 95 can facilitate the recognition of the rotation of the first and the second rotary blades 63, 64 and prevent cleaning with the rotation stopped.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suction port of a vacuum cleaner provided with an air turbine for driving a rotary cleaning body to rotate.

[0002]

2. Description of the Related Art Conventionally, as a suction port of a vacuum cleaner provided with this kind of air turbine, for example, US Pat.
The configuration described in the '816 specification is known.

The suction port of the vacuum cleaner described in the specification of US Pat. No. 2,904,816 is connected to a suction chamber which rotatably accommodates a rotary cleaning body and has a suction port opened on the lower surface, a hose, an extension pipe, and the like. A suction air path is provided between the communication pipe and the suction air path that rotatably accommodates an air turbine that rotates by a suction airflow and rotates a rotary cleaning body between an intake port that opens on the upper surface and the communication pipe. A valve element is provided at the junction of the intake air path and the intake air path, and the suction air path is opened and closed by switching the valve element to adjust the suction amount and the intake amount.

[0004]

However, in the suction port of the conventional vacuum cleaner described in the above-mentioned U.S. Pat. No. 2,904,816, the rotary cleaning body rotates in synchronization with the air turbine rotating by the suction airflow. Since the dust is scraped off, the amount of dust promoted in the dust collection chamber of the vacuum cleaner body increases and the suction amount decreases, or the dust is blocked by a hose or the like and the suction amount decreases. Even if the rotation of the rotary cleaning body is reduced and stopped and the rotation of the rotary cleaning body is reduced and stopped, it cannot be checked from the outside. .

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above problems, and has as its object to provide a suction port of an electric vacuum cleaner capable of confirming a rotation state of a rotary cleaning body and efficiently cleaning the same.

[0006]

According to a first aspect of the present invention, there is provided a vacuum cleaner including a case body, an air turbine provided in the case body and rotated by a suction airflow, and facing a lower surface of the case body. A rotary cleaning body rotatably disposed and rotated by the rotation of the air turbine, and a rotation display unit for displaying a rotation state of the rotary cleaning body;
Due to the rotation of the air turbine provided in the case body by the suction airflow, the rotatable cleaning body rotatably disposed facing the lower surface of the case body is rotated, and the rotating state of the rotatable cleaning body is displayed on the rotation display means. The rotation state of the rotary cleaning body can be recognized during cleaning, and it is possible to prevent cleaning in a state where the rotation of the rotary cleaning body is stopped, thereby improving cleanability.

According to a second aspect of the present invention, the suction body of the vacuum cleaner comprises:
A case body, an air turbine provided in the case body and rotated by a suction airflow, a rotating cleaning body rotatably disposed facing a lower surface of the case body and rotating with the rotation of the air turbine, A rotation display means for displaying a rotation state of the turbine, wherein a rotating cleaning body rotatably disposed facing the lower surface of the case body with the rotation of the air turbine provided in the case body by the suction airflow is rotated. In addition, since the rotation state of the air turbine is displayed on the rotation display means, the rotation state of the rotary cleaning body can be recognized by recognizing the rotation state of the air turbine during cleaning, and the rotation of the rotary cleaning body has stopped. Prevents cleaning in a state, and improves cleanability.

The suction body of the vacuum cleaner according to claim 3 is
3. The suction opening of the vacuum cleaner according to claim 1, wherein the rotation display unit is provided on a rotating body having a plurality of colors and rotating with the rotation of the rotating cleaning body or the air turbine, and the case body. At least a part of the rotating body is provided with a window portion that can be exposed, and at least a part of the rotating body having a plurality of colors that rotates with the rotation of the rotary cleaning body or the air turbine is provided in the case body. By exposing at the window, the rotation state of the rotary cleaning body can be recognized with a simple configuration.

[0009] The suction body of the vacuum cleaner according to claim 4 is:
3. The suction body of a vacuum cleaner according to claim 1, wherein the rotation display means includes a rotating body having a magnet that rotates with rotation of the rotating cleaning body or the air turbine, and an element that senses magnetism of the magnet. And a display unit for displaying in response to the detection of magnetism by the element. The element senses the magnetism of a magnet provided on a rotating cleaning body or a rotating body that rotates with the rotation of the air turbine. Since the display unit displays the information in response to the sensing of magnetism by the element, the rotation state of the rotary cleaning body can be recognized with a simple configuration.

The suction body of the vacuum cleaner according to claim 5 is
5. The suction body of a vacuum cleaner according to claim 4, wherein the rotation display means includes a rotation cleaning body or a charging means for charging the air cleaner with rotation and supplying power to the display unit. Alternatively, since the charging means is provided for charging the display with the rotation of the air turbine and supplying the power to the display unit, the display unit is efficiently supplied with power with a simple configuration.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a suction port of a vacuum cleaner according to an embodiment of the present invention.

1 to 6, reference numeral 11 denotes a suction port main body which is horizontally long in the traveling direction. The suction port main body 11 is a lower main body case 12 made of synthetic resin such as acrylonitrile-butadiene-styrene (ABS) resin. And an upper body case of the same material which is fixedly coupled to an upper portion of the lower body case 12.
13 are joined by sandwiching the bumper 14 along the peripheral surface including the front surface of the lower body case 12 and the upper body case 13,
A rectangular case body 15 is formed.

The lower body case 12 has a rib portion 17 formed substantially vertically on the upper surface, and a first cleaning body in the form of a concave groove which is horizontally elongated in the left-right direction on the front side which is the advancing direction side and opens on the lower surface. A chamber 18 is defined and a second cleaning body chamber 19 having a concave groove shape is also formed in the rear side, which is a retreating direction side, and is similarly horizontally long in the left-right direction and opened to the lower surface. Further, the lower body case 12 is partitioned by the rib portion 17 from the substantially central portion between the first cleaning body chamber 18 and the second cleaning body chamber 19 to one end side, and has a function as a leak port on the lower surface. A first suction chamber 21 opening the first suction port 20, a first drive transmission chamber 22 partitioned from substantially the center to the other end, and a second cleaning body chamber partitioned substantially at the rear rear center
A second suction port 23, which also functions as a leak port, is opened at substantially the center of the upper surface of 19, and a second suction chamber 24 communicating with the first suction chamber 21 and the other end side of the first drive transmission chamber 22 And a second drive transmission chamber 25 that is sectioned. The first
The opening area of the suction port 20 is formed larger than the opening area of the second suction port 23.

Further, on the lower surface of the lower body case 12, there is provided a concave groove-shaped first groove which is located at one end side of the first cleaning body chamber 18 and communicates the outside of the case body 15 and the first cleaning body chamber 18. 1 communicating recess
26 are provided. On the lower surface of the lower body case 12, a case body is located at the rear end of one end of the second cleaning body chamber 19.
A second groove-shaped second connecting the outside of 15 and the second cleaning body chamber 19
Communication recess 27 is provided. Further, a groove-shaped communicating air passage for communicating the first cleaning body chamber 18 with the first suction port 20.
28 are provided.

The lower surface of the second drive transmission chamber 25 is opened downward, and a closing plate 29 is removably mounted on the opening with a mounting tool 30.

Further, on one end side of the upper body case 13,
The second drive transmission chamber 25 communicates with the second drive transmission chamber 25.
A leak window 31 is formed so as to prevent dust from entering the inside.

In the center of the rear part of the case body 15, a communication pipe 32 is supported by the lower main body case 12 and the upper main body case 13 with the rotating shafts 33, 33 facing the second suction port 23. To be rotatable at a predetermined vertical angle. The first suction chamber 21 and the second suction chamber 24 communicate with the communication pipe 32 to form a suction air passage 34. Further, the rear end of the communication pipe 32 protrudes rearward and outward from the suction port main body 11, and the front end of the bent connection pipe 35 is rotatably fitted to the rear end. The connection pipe 35 is detachably connected to a hose via an extension pipe (not shown), and further connected to a vacuum cleaner body (not shown).

The second suction port 23 having an opening area smaller than the opening area of the first suction port 20 is closer to the communication pipe 32 than the first suction port 20, so that the first suction port 20 has a smaller opening area. And the suction force from the second suction port 23 are substantially the same.

On the other hand, a middle case 39 for partitioning a turbine chamber 38 for rotatably accommodating an air turbine 37 serving as a flat driving means therein is fixedly mounted substantially at the center of the case body 15. The middle case 39 includes a substantially funnel-shaped lower case 40 having a large diameter at the upper part and a small diameter at the lower part, and an upper case 41 for closing the upper part of the lower case 40. Further, the lower case 40 has an opening formed with an intake / exhaust port 42 communicating with the communication pipe 32 from inside the turbine chamber 38.

In the middle case 39, an intake supply air passage 43 a is formed in the outer peripheral surface along the circumferential direction, one end of which expands like a trumpet in the circumferential direction and the other end opens to the turbine chamber 38. I have. The intake supply air passage 43a is formed in a scroll-like shape so as to communicate with the turbine chamber 38 so as to gradually become narrower and the cross-sectional area becomes gradually smaller, so as to supply the suction airflow to the air turbine 37 in a spiral manner. ing. One end of the intake supply air passage 43a which opens in a trumpet shape is connected to an intake port 44 formed over a rear surface that is a substantially vertical rear surface of the upper body case 13 and an upper surface that is continuous with the rear surface. They are communicated facing each other. The intake port 44 is formed by forming a plurality of small-diameter holes, and is formed to be open at one side of the communication pipe 32.

Further, the surface of the middle case 39 facing the first suction port 20 but not facing the communication pipe 32 is provided with the first suction port 20.
A plurality of slit-shaped communication holes (not shown) are formed so as to prevent dust and the like sucked from the air from entering the turbine chamber. That is, the communication hole is opened such that the direction of the intake air passage 43 through the communication hole from the turbine chamber 38 intersects with the suction air passage 34 extending from the first suction port 20 to the communication pipe 32. I have. Then, the air is communicated from the intake port 44 to the first suction chamber 21 through the intake air supply passage 43a, the turbine chamber 38, and the communication hole, and from the turbine chamber 38 to the second suction chamber 24 through the intake discharge port 42. A communication intake air passage 43 is formed. Further, since the communication hole is opened to face the first suction port 20, the intake air path from the turbine chamber 38 to the communication pipe 32 is formed.
43 joins the suction air passage 34 from the communication hole 45 and communicates with the communication pipe 32.

The intake outlet 42 has an opening area smaller than the opening area of the communication hole so that the main flow of the intake air flows through the communication hole.
This prevents the airflow from being generated from the intake / exhaust port 42 to the communication pipe 32 through the inside, thereby preventing the rotation of the air turbine 37 due to the backflow and the dust entering the turbine chamber 38 due to the flow of the air containing the dust from the communication hole. It is necessary to prevent intrusion.

At substantially the center of the lower surface of the upper case 41 of the middle case 39, a bearing mounting rib 48 for mounting a first bearing 47 as a bearing is provided.
A bearing mounting rib 50 for mounting a second bearing 49, which is a bearing coaxially with the first bearing 47, is provided substantially at the center of the upper surface of the 40.

The air turbine 37 is shown in FIGS.
As shown in FIG. 5, a rectifying plate 54 that expands toward one end side is provided on a peripheral surface of a substantially cylindrical shaft support 53 into which a rod-shaped shaft 52 is inserted, and the other end near the peripheral edge of the rectifying plate 54 is provided. A plurality of curved wind receiving plates 55 are formed on the side surface so as to protrude substantially in a radial shape. Further, an air turbine pulley 56 is integrally provided at an end of the shaft 52 on the side where the wind receiving plates 55 are provided.

In the air turbine 37, the air turbine pulley 56 projects from the lower end of the middle case 39 so as to face the first drive transmission chamber 22, and both ends of the shaft 52 are provided with the first bearing.
An axial direction is substantially vertically supported by the 47 and the second bearing 49, and is rotatably supported in the turbine chamber 38.
The middle case 39 is accommodated and fixed in the case body 15 such that the second bearing 49 is located substantially at the center between the first cleaning body chamber 18 and the second cleaning body chamber 19.

A driven rear wheel chamber 59 is provided on both sides of the communication pipe 32 of the lower body case 12 and a driven rear wheel 58 is rotatably supported on the shaft. A driven front wheel 60 is rotatably provided on both front ends. A driven front wheel chamber 61 that is pivotally supported is formed.

On the other hand, the first cleaning body chamber 18 and the second cleaning body chamber 19 have first rotating blades 63 as rotating cleaning bodies.
And a second rotating blade 64 are rotatably arranged. The second rotating blade 64 has a mandrel 66 provided with a spiral groove 65 in the circumferential direction clockwise on the peripheral surface of, for example, an aluminum alloy.
A plurality of, for example, four blade portions 67, which are scraping means as a cleaning member made of flexible vinyl chloride, are spirally engaged with the groove portion 65 so as to protrude in a wall shape on the outer peripheral surface. I have. The blade portion 67 is formed by forming a pedestal portion 69 in which one side edge of an elongated flat plate portion 68 in the longitudinal direction engages with the groove portion 65 of the mandrel 66 to have a large thickness.

As shown in FIGS. 10 and 11, the first rotary blade 63 is a cloth blade which is a floor polishing means as a cleaning body having a flexible outer peripheral surface and a raised surface 70 provided on one surface. A plurality of, for example, two double blade portions 72, which are scraping means as a cleaning body having a substantially Y-shaped cross section and having flexibility, are alternately provided in a spiral shape. The cloth blade portion 71 is formed, for example, by forming a thick pedestal portion 69 made of soft vinyl chloride on one side edge in the longitudinal direction of an elongated plate-like raised cloth 73 made of polyester and provided with a raised 70 on one surface. Have been. The double blade portion 72 is a plate portion of the blade portion 67.
The plate portion 68 is formed to have a substantially Y-shaped cross section as if branched from the plate 68. The length of the cloth blade 71 protruding from the mandrel 66 is longer than the length of the double blade 72 protruding from the mandrel 66, and when the surface to be cleaned is between the plates, only the cloth blade 71 is between the plates. And the flooring effect of floor polishing is obtained.

Further, the first rotating blade 63 and the second rotating blade 63
At one end of the rotary blade 64, a pulley 75 is provided integrally with the mandrel 66, respectively. The first rotary blade 63 and the second rotary blade 64 are arranged such that the respective pulleys 75, 75 are located in the second drive transmission chamber 25, and the shaft portions 76, rotatably provided at both ends in the axial direction. 76 are respectively engaged with bearings 77 provided on the case body 15 and supported rotatably.

The first rotating blade 63 and the second rotating blade 64 are formed so that the outer diameter of the first rotating blade 63 is smaller than that of the first rotating blade 63, and the lower end is formed in each first cleaning body chamber. A ground surface protrudes slightly downward from the openings on the lower surfaces of the cleaning body chamber 18 and the second cleaning body chamber 19, and is formed by the driven front wheels 60, 60 and the driven rear wheels 58, 58 only at the tip of the cloth blade portion 71. It is provided so as to protrude downward.

On the other hand, in the first drive transmission chamber 22, a drive conversion means 79 as a drive transmission means is provided. As shown in FIGS. 1, 2, 3 and 6, the drive conversion means 79 is provided with an axial direction in a box 80 disposed at the end of the first drive transmission chamber 22. A substantially rod-shaped first shaft 81 extending vertically is rotatably supported. At the lower end of the first shaft 81, a first pulley 83, over which a first endless belt 82a serving as a drive transmission means is stretched by the air turbine pulley 56 of the air turbine 37, is provided with a first drive transmission. A first bevel gear 84a is provided at the upper end thereof.

Further, in the box 80, a second shaft 85 and a third shaft 86, each having a substantially rod shape, are disposed so as to be rotatable substantially vertically upward and downward along the horizontal direction of the case body 15.
The second shaft 85 has the first shaft 81 at one end.
A second bevel gear 84b engaging with the first bevel gear 84a is provided, and the second pulley 87 facing the second drive transmission chamber 25 at the other end.
And a first gear 88a is provided at one end side of the intermediate portion. Further, a second gear 88b is provided at one end of the third shaft 86 to engage with the first gear 88a of the second shaft 85, and the other end faces the second drive transmission chamber 25. A third pulley 89 is provided. The second pulley 87 of the second shaft 85 is attached to the pulley 75 of the first rotating blade 63.
The second endless belt 82b, which is a drive transmission means, is wrapped at an angle, and the third pulley 89 of the third shaft 86 is transmitted by the pulley 75 of the second rotary blade 64 to the third pulley 89. A third endless belt 82c as a means is stretched in a substantially horizontal direction.

As shown in FIG. 6, the center of the second shaft 85 is closer to the second rotating blade 64 than the intermediate position between the first rotating blade 63 and the second rotating blade 64, that is, upward. And a second shaft 85 located at
Is positioned so as to increase the distance between the first rotating blade 63 and the first rotating blade 63 which is inclined over the shaft 85. Also,
The third shaft 86 is located in a substantially horizontal direction with respect to the second rotating blade 64 that is bridged substantially horizontally with the third shaft 86, and between the third shaft 86 and the second rotating blade 64. Are positioned so that the distance between them becomes shorter.

The rotation of the air turbine 37 causes the first
The first shaft 81 rotates via the endless belt 82a of
By this rotation, the first bevel gear 84a and the second bevel gear 84a
The second shaft 85 rotates via b. With the first gear 88a and the second gear 88b meshing with each other by the rotation of the second shaft 85, the third shaft 86 rotates in the opposite direction with respect to the second shaft 85, and the second endless belt
The first rotary blade 63 rotates in the forward direction with respect to the forward direction of the suction port main body 11 via the second rotary blade 82b.
Numerals 64 are reversely rotated with respect to the forward direction of the suction port main body 11, that is, rotate inward with each other. The first
The rotating blade 63 rotates toward the raised side 70 of the cloth blade portion 71.

On the other hand, above the turbine chamber 38, a rotation display means 91 is provided. And this rotation display means 91
Has a disk-shaped rotator 92 that is fixedly supported at the upper end of a shaft 52 that supports the air turbine 37 and that rotates with the rotation of the air turbine 37. In addition, a color of a base material such as a synthetic resin forming the rotating body 92 is provided on a peripheral portion of an upper surface of the rotating body 92.
A color 93b different from the color 93a is colored at a predetermined interval in a substantially fan shape or a substantially arc band shape. A window 95 closed by a translucent member 94 is formed in the upper body case 13 corresponding to the coloring position, and the color of the rotating body 92 is exposed from the outside via the translucent member 94. It is possible to display the rotation status of the rotating body 92 in a color corresponding to the rotating speed of the rotating body 92.

Next, the operation of the above embodiment will be described.

At the time of cleaning, the suction port main body 11 is connected to an electric vacuum cleaner main body (not shown) via an extension pipe and a hose,
The hose is pushed forward while gripping the end of the hose on the extension pipe side, and the suction port body 11 is moved back and forth while making contact with the floor surface to be cleaned.

Then, by the suction force of the main body of the vacuum cleaner, the air is suctioned from the suction port 44 and also from the first suction port 20 and the second suction port 23. Where the suction body
11 is placed on the floor, the first suction port 20
Are a first rotating blade 63 and a second rotating blade 64
Since the first rotary blade 63 and the second rotary blade 64 are located between them, they are sealed by the floor and the negative pressure on the lower surface of the suction port main body 11 increases. By the way, the second suction port 23 that is closer to the communication pipe 32 than the first suction port 20 is
A second rotating blade for opening into the second cleaning body chamber 19;
Since the air passage resistance increases at 64 and the opening area is smaller than the opening area of the first suction port 20, the first suction port
The suction force from 20 and the suction force from the second suction port 23 are almost the same. Therefore, the ratio of the suction amount from the first suction port 20 and the second suction port 23 and the suction amount from the suction port 44, which are substantially the same, is the negative pressure of the lower surface of the suction port main body 11 facing the floor. Due to the increase, the rate at which the amount of intake air from the intake port 44 increases is obtained.

Further, when the floor surface is a carpet such as a carpet, particularly with a long fur, the first suction port 20 facing the floor surface is closed. Therefore, the negative pressure on the lower surface of the suction port main body 11 when the floor surface is a carpet or the like is larger than the negative pressure on the lower surface of the suction port main body 11 when the floor surface is between plates, and at this time, the suction port 44 Increases the intake air amount.

The air taken in from the intake port 44 is rectified through the trumpet-shaped intake supply air passage 43a whose cross-sectional area is gradually reduced, and reaches the turbine chamber 38 in a spiral manner. The air turbine 37 rotates at a speed proportional to the amount of intake air. This rotational driving force is transmitted to the drive converting means 79 via the first endless belt 82a, and the rotational driving of the vertical direction is converted into two rotational driving forces of the horizontal direction by the driving converting means 79. After the conversion, the first rotating blade 63 and the second rotating blade 64 rotate in opposite directions at a speed proportional to the intake air amount via the second endless belt 82b and the third endless belt 82c. The first rotating blade 63 and the second rotating blade 64 rotate to scrape dust 90 from the floor surface, and the scraped dust 90 located in the first cleaning body chamber 18 passes through the communicating air passage. 28
The dust 90 which is sucked from the first suction port 20 and located in the second cleaning body chamber 19 is sucked through the second suction port 23 as it is. Further, the suction airflow flowing into the turbine chamber 38 is supplied to the first suction chamber 21 forming the suction air passage 34 from the communication hole.
And, it flows to the communication pipe 32 through the intake / exhaust port.

When the floor surface is between the plates or the like, only the cloth blade portion 71 of the first rotary blade 63 located on the front side in the traveling direction comes into contact with the space between the plates, and the dust on the space between the plates up to the wall.
Raise 90 so that it sweeps up, and flooring between the boards to the wall.

Then, together with the air turbine 37 rotated by the suction airflow, the rotating body 92 supported by the shaft 52 that supports the air turbine 37 rotates.
Different colors 93a and 93b colored in 92 are displayed from the window 95, so that the rotation state of the rotating body 92 can be seen. That is, the first rotating blade 63 that rotates by the rotation of the air turbine 37
The rotation state of the second rotating blade 64 can be recognized from the rotation state of the rotating body 92.

Incidentally, the intake port 44 has a smaller opening area than the first intake port 20 and the second intake port 23, and the air turbine 37 serving as an air path resistance is located in the intake air path 43.
The suction from the first suction port 20 and the second suction port 23 is almost impossible, and the suction force from the first suction port 20 and the second suction port 23 is reduced. And the first
The dust 90 is scraped off by the rotation of the rotating blade 63 and the second rotating blade 64, so that the dust 90 is easily sucked, and almost no suction is left due to a decrease in the suction force.

Here, when the hose is placed on the floor surface due to movement of furniture or the like, the lower surface of the suction port main body 11 is separated from the floor surface, or the first suction port 20 and the second suction port 23 are large. When the object is sucked and closed, the first rotating blade 63
When the suction port body 11 is lifted from the floor surface, the negative pressure on the lower surface of the suction port body 11 is reduced to the atmospheric pressure in order to remove the lint and hair when the second rotating blade 64 is entangled with the second rotation blade 64. Reduce to near negative pressure. Due to the reduction of the negative pressure on the lower surface of the suction port main body 11, the suction performance from the first suction port 20 and the second suction port 23 having a large opening area and small airflow resistance is easier to suck than the suction from the suction port 44. So the first
Negative pressure of the suction port 20 and the second suction port 23 of the
The negative pressure in the suction chamber 21 is also reduced to a negative pressure close to the atmospheric pressure.
And the communication hole 45 is opened facing the first suction port 20,
An intake air passage 43 from the turbine chamber 38 to the communication pipe 32 has a communication hole.
In order to join the suction air passage 34 from 45 and communicate with the communication pipe 32,
The negative pressure of the communication hole 45 is also reduced to a negative pressure close to the atmospheric pressure. For this reason, the ratio between the suction amount from the first suction port 20 and the second suction port 23 and the suction amount from the suction port 44 is determined by the suction amount from the first suction port 20 and the second suction port 23. Increases, and the amount of suction from the intake port 44 is greatly reduced.
The rotation speed is greatly reduced or stopped, and the rotation speeds of the first rotating blade 63 and the second rotating blade 64 are also greatly reduced or stopped.

Then, the first rotating blade 63 and the second rotating blade 63
When removing the first rotating blade 63 and the second rotating blade 64 in order to remove lint, hair and the like entangled with the rotating blade 64, the mounting device 30 is removed and the closing plate is removed.
29, remove the shaft 76 on the side where the pulley 75 is not
The shaft 76 on the pulley 75 side is removed from the bearing 77 by moving the pulley 75 side downward with the fulcrum as a fulcrum, and the second endless belt 82b
In addition, the pulley 75 can be removed from the third endless belt 82c, and the shaft portion 76 serving as a fulcrum can be removed from the bearing 77 to remove it. In the case of assembling, the opposite operation is performed.

According to the above embodiment, the air turbine 37
The rotation state of the first rotation blade 63 and the second rotation blade 64, which rotate with the rotation of the air turbine 37, is displayed on the rotation display means 91 according to the rotation state. Can be recognized. For this reason, for example, the amount of dust assisted in the dust collection bag attached to the dust collection chamber of the vacuum cleaner body is increased, the dust collection bag is clogged, the amount of intake air is reduced, and a hose or a communication pipe 32 is used. Due to the obstruction of dust sucked into the air and the inability to inhale air, a sufficient intake airflow does not flow into the air turbine, so that the rotation decreases and stops, and the rotation of the first rotating blade 63 and the second rotating blade 64 decreases and stops. In some cases, when the first rotary blade 63 and the second rotary blade 64 stop rotating and the first rotary blade 63 and the second rotary blade 64 stop rotating during cleaning, yarn dust or the like is entangled with the first rotary blade 63 and the second rotary blade 64. Since the rotation of the rotation blade 37 is also stopped, by checking the rotation display means 91, it is possible to prevent the first rotation blade 63 and the second rotation blade 64 from being cleaned while the rotation is stopped. The first rotating blade 63 and the second rotating blade 64 can reliably scrape out dust and improve the cleaning efficiency.

Further, since the rotation state of the first rotary blade 63 and the second rotary blade 64 is not directly recognized but is indirectly recognized by the rotation of the air turbine 37, it can be displayed in a small space with a simple configuration. The inlet body 11 can be reduced in weight and size.

As the rotation display means 91, different colors are used.
Since the upper body case 13 is provided with the window portion 95 that allows a part of the colored portion of the substantially disk-shaped rotating body 92 colored in 93a and 93b to be exposed, the first rotating blade 63 can be easily formed with a simple configuration. In addition, the rotation state of the second rotating blade 64 can be recognized, and the suction port main body 11 can be reduced in weight and size.

Also, since the suction port body 11 travels on the floor surface to be cleaned, it is almost always in view during cleaning.
During cleaning, the rotation status of the first rotary blade 63 and the second rotary blade 64 can be easily recognized.

Furthermore, since the window 95 is closed by the translucent member 94, dust may enter from outside to hinder the rotation of the rotating body 92, or the coloring of the rotating body 92 may become unclear. Therefore, the airtightness in the suction port main body 11 can be maintained, and the rotation state can be recognized efficiently and reliably.

On the other hand, a communication hole opened downstream of the turbine chamber 38 of the intake air passage 43 and communicating with the communication pipe 32 is formed in the first suction port 20.
The opening is formed at a position facing the communication pipe 32 and not facing the communication pipe 32, so that the first suction port ensures a negative pressure on the floor surface during cleaning.
Since it communicates with the suction air passage 34 from 20, the negative pressure of the communication hole is secured, and the air turbine 37 rotatably provided in the intake air passage 43 is efficiently rotated by the intake airflow from the intake port, and the The first rotating blade 63 and the second rotating blade 64 rotate to scrape dust from the floor surface to be cleaned and can efficiently suck the dust from the first suction port 20 and the second suction port 23, thereby interrupting the cleaning. When the lower surface of the case body 15 is separated from the floor surface by a predetermined distance by lifting the case body 15 with the like, the first suction port 20 and the second suction port 23 on the lower surface of the case body 15 are opened, The amount of intake air from the intake port 44 is greatly reduced, and the rotation of the air turbine 37 is stopped or greatly reduced, and the rotation of each of the rotating blades 63 and 64 is stopped or greatly reduced. The first suction port 20 and the second suction port 23 acts as a leak.

Therefore, the scraped-out dust 90 can be easily sucked from the first suction port 20 and the second suction port 23 where the negative pressure is secured, and can be efficiently cleaned, and the first suction port can be efficiently cleaned.
When the suction port main body 11 is lifted to the second suction port 20 and the second suction port 23, the rotation of the air turbine 37 is reduced and the first rotating blade
Since it also has a function as a leak port for lowering or stopping the rotation of the 63 and the second rotary blade 64, both functions as a suction port for sucking dust with a simple structure are obtained, and furthermore, the leak port is opened and closed. No opening / closing means is required, the rotation of the first rotating blade 63 and the second rotating blade 64 can be easily reduced with a simple structure, the size and weight can be easily reduced, and the first rotating blade 63 and the second rotating blade 63 can be easily reduced.
The wind noise caused by the rotation of the rotating blade 64 can be reduced.

Further, since the second suction port 23 is located on the downstream side of the suction air path from the first suction port 20 where the communication hole of the intake air path 43 opens, the second suction port 23 is formed as an opening. , Further significantly improving the cleaning performance and the first rotating blade 63 and the second
The rotation of the rotating blade 64 can be easily reduced or stopped.

The intake air passage 43 having the turbine chamber 38
The communication hole of the air inlet faces the first suction port 20, does not face the communication pipe 32, and the suction airflow from the first suction port 20 does not flow back into the turbine chamber 38. The rotation of the air turbine 37 can be prevented from lowering due to dust adhering to the air turbine 37 without flowing into the chamber 38, the air turbine can be rotated efficiently, and the cleaning performance can be improved.

Further, the first cleaning body chamber 18 and the first suction port 20
Are communicated with each other in the groove-shaped communication air passage 28, and the closed state of the first suction port 20 and the communication air passage 28 differs depending on the type of the surface to be cleaned, for example, between the boards, tatami mats, carpets, etc. The pressures are different, and the ratio between the amount of suction from the first suction port 20 and the second suction port 23 and the amount of suction from the suction port 44 varies. For this reason, in the case of between the plates, the suction amount from the suction port 44 decreases, and the rotation of the first rotating blade 63 and the second rotating blade 64 decreases. In the case of a carpet, the suction rate from the suction port 44 decreases. And the rotation of the first rotating blade 63 and the second rotating blade 64 is increased, so that a separate floor surface detecting means is not necessary, and the first rotating blade 63 has a simple structure according to the floor surface.
The rotation of the 63 and the second rotating blades 64 can be varied, so that the cleaning workability and the cleaning efficiency can be further improved.

Since the communicating air passage 28 has a concave groove shape,
Dust can be prevented from being caught as compared with the case of forming a tubular shape with a tubular object or the like, and maintenance management such as removal of dust can be facilitated.

Further, since the first and second communication concave portions 26 and 27 in the form of concave grooves communicating with the first cleaning member chamber 18 and the second cleaning member chamber 19 are provided, dust on the side of the wall and the like can be efficiently used. In addition to being able to capture well, similarly to the communication air passage 28, dust is not caught compared to a case where it is formed in a tubular shape with a tubular object or the like, and maintenance management such as removal of dust can be easily performed. In addition, the communication air passage 28, the first communication recess 26, and the second communication recess 27
It is also possible to adopt a structure in which communication is made with a tubular object.

Further, the shaft 52 of the scroll flat type air turbine 37 which can obtain a large torque is positioned between the first cleaning body chamber 18 and the second cleaning body chamber 19 in the axial direction along the vertical direction. The second bearing 49 that supports the shaft 52 is disposed between the first cleaning body chamber 18 and the second cleaning body chamber 19 below the upper ends of the first rotating blade 63 and the second rotating blade 64. , The air turbine 37 is positioned so as to overlap the first cleaning body chamber 18 and the second cleaning body chamber 19, so that a plurality of, for example, two first cleaning chambers are provided to improve the cleaning performance. Although the large torque required to rotationally drive the rotating blade 63 and the second rotating blade 64 can be obtained, the space before and after in the traveling direction for disposing the air turbine 37 and the bearings The space in the up and down direction for installing the second bearing 49 The size can be reduced and the size can be reduced. Since the air turbine 37 has the rectifying plate 54 that expands toward one end, the first bearing 47 that is a bearing is arranged by utilizing the space on the expanding side of the rectifying plate 54. And further downsizing can be achieved.

Further, the first suction port 20 is opened so as to be deviated from the center to one end side from the center, and the first suction chamber 21 communicating with the second suction chamber 24 facing the communication pipe 32 is connected to the first suction chamber 21. The middle case 39 formed above and housing the air turbine 37 is
, The intake air passage 34 from the first intake port 20 and the intake air passage 43 from the intake port 44 through the turbine chamber 38 are not positioned vertically, so that the vertical dimension can be further reduced. And further downsizing.

On the other hand, the same number of dusts as the cloth blade 71 serving as a floor polishing means having a floor polishing effect on the first rotary blade 63 positioned on the front side in the running direction and the blade 67 of the second rotary blade 64 are provided. Since the double blade portion 72 serving as a scraping means is provided so as to form the plate portion 68 having a scraping effect, the first suction port 20 communicating with the first cleaning body chamber 18 located on the front side in the traveling direction is provided. Although the distance from the communication pipe 32 is longer than the second suction port 23 communicating with the second cleaning body chamber 19 located on the rear side, the suction force is relatively weak due to wind path resistance and the like, but the front suction port The first rotating blades 63 in the first cleaning body chamber 18 are equally scraped off by the same number of plate portions 68 of the double blade portions 72 as the second rotating blades in the second cleaning body chamber 19 on the rear side. Also, the cloth blade portion 71 scrapes out dust, and the dust scraping ability is relatively increased. The cleaning ability from the suction port 20 and the second suction port 23 is substantially the same, and the cleaning performance can be easily improved.

Furthermore, a flooring effect can be obtained up to the wall, dust can be scraped out to the wall, and the wall can be cleaned without switching separately according to the state of the floor regardless of the floor type.

Further, the scraping effect of the blade portion 67, which is reduced by providing the cloth blade portion 71 on the first rotary blade 63, is compensated for by providing the double blade portion 72, and the first suction port 20 and the second suction port are provided. Since the cleaning ability from the suction port 23 is substantially the same, the sweeping effect when the suction port body 11 advances and retreats can be made substantially equal, and the cleaning efficiency can be further improved.

Further, since the outer diameter of the first rotating blade 63 located on the front side is smaller than the outer diameter of the second rotating blade 64, the first rotating blade 63 is arranged to the forefront in the case body 15. In addition to this, the distance between the position where the first rotating blade 63 contacts the floor surface and the edge of the wall can be shortened, and the edge of the wall can be cleaned.

Further, since the outer diameter of the first rotary blade 63 is smaller than the outer diameter of the second rotary blade 64, the load on the floor of the first rotary blade 63 is reduced. Even if the rear side of the suction port main body 11 is strongly pressed against the floor surface through the communication pipe 32 when the 11 advances, the driving force is transmitted to the second rotary blade 64 on the rear side, so that the second rotary blade
Cleaning by 64 can be performed reliably.

Further, the second shaft 85, which inclines the second endless belt 82b around the first rotating blade 63, is moved from the intermediate position between the first rotating blade 63 and the second rotating blade 64 to the first rotating blade. The third endless belt is disposed on the second rotating blade 64 at a position where the distance on the side of the second rotating blade 64 is long.
The third shaft 86, which bridges 82c in a substantially horizontal direction,
When the first rotating blade 63 and the second rotating blade 64 are removed, the second rotating blade 64 is disposed at a position where the distance on the second rotating blade 64 side is shorter than the intermediate position between the first rotating blade 63 and the second rotating blade 64. Cleaning body chamber by rotation of
The first rotating blade 63 and the second rotating blade 64 can be prevented from contacting the lower opening edges of the cleaning body chamber 18 and the second cleaning body chamber 19 from becoming difficult to remove, and the first rotating blade 63 can be easily removed.
And the second rotating blade 64 can be attached and detached.

Further, the drive transmission means for transmitting the drive of the air turbine 37 to the first rotary blade 63 and the second rotary blade 64, that is, the first endless belt 82a and the drive conversion means 79 are connected to the first cleaning body chamber. 18 and the second cleaning room
19, it is located on the opposite side to the suction air passage 34 and is isolated, so that the vertical dimension can be reduced and further downsizing can be achieved, and the drive conversion means 79 is separated from the suction air passage 34 and separated. Through the second endless belt 82b and the third endless belt 82
At c, the first rotating blade 63 and the second rotating blade
The first endless belt 82a, the drive conversion means 79, the second endless belt 82b, and the third endless belt, which are drive transmission means, are transmitted by the dust 90 sucked in to transmit the drive to the end of the endless belt 64.
82c is not contaminated and maintenance is easy.

The scroll-deflection type air turbine 37
A suction air passage 43a for supplying a suction airflow in a spiral shape is located on the side opposite to the suction air passage 34 from the first suction port 20 communicating with the first cleaning body chamber 18 located on the front side in the traveling direction. As a result, the intake air passage 34 and the intake supply air passage 43a do not overlap, and the size can be further reduced.

Then, the intake port 44 of the intake air supply passage 43a
Is formed on the rear side where the communication pipe 32 extends, so that the air inlet 37 is not blocked by walls, furniture, curtains, etc. during cleaning, so that the air turbine 37 can be efficiently rotated and the communication pipe 32 is The swirling suction airflow can be easily rectified and supplied to the turbine chamber 38 by effectively utilizing the supporting space, so that the driving torque of the air turbine 37 can be further improved and the size can be easily reduced.

Further, since the air inlet 44 is formed at a position substantially perpendicular to the case body 15, it is possible to prevent the fine air dust 90 in the air from being blocked on the air inlet main body 11, thereby blocking the air inlet 44. Thus, a reduction in intake efficiency can be suppressed, and the air turbine 37 can be rotated efficiently.

Further, the air turbine 37 in the turbine chamber 38 extends from the intake port 44 which is not blocked by walls, furniture, curtains and the like.
Supply air path to supply the air in a spiral
43a is opened to the front side of the turbine chamber 38 and formed into a trumpet shape having an interference function so that the width gradually becomes narrower from the intake port 44, so that the opening to the turbine chamber 38 is gradually opened with a simple structure. The intake supply air passage 43a having a small area rectifies the intake airflow, and can reduce wind noise and the like of the air turbine 37, thereby reducing noise.

In the above embodiment, not only the canister type vacuum cleaner but also an upright type in which the suction port main body 11 is formed directly on the lower surface of the vacuum cleaner main body,
The present invention can also be applied to a self-propelled vacuum cleaner or the like in which the vacuum cleaner body and the suction port body 11 are integrated.

The coloring of the rotating body 92 is, for example, as shown in FIG.
As shown in FIG. 2, the coloring area may be made different, for example, by increasing the coloring area of a color that is easily recognizable, so that the rotation situation can be easily recognized. Further, for example, as shown in FIG. 13, the window 95 is colored so as to be divided into a substantially fan shape to facilitate the position design, or as shown in FIG. 14, a plurality of three or more colors 93a, 93b are provided. , 93c to enhance the aesthetic appearance.

Further, the opening is continuously adjusted in the middle of the intake air passage 43 so that the first rotary blade 63 and the second rotary blade
A valve body, a shutter, and the like can be separately provided so that the rotation speed of the 64 can be varied.

On the other hand, as the rotary cleaning member, in addition to the first rotary blade 63 and the second rotary blade 64, any of a rotary brush having raised walls in a wall shape, a rotary brush having only a cloth blade portion, and the like can be used. A thing may be used.

In the above description, two rotary cleaning members are provided, but the same effect can be obtained by providing one or more rotary cleaning members.

Next, another embodiment will be described with reference to FIGS.
This will be described with reference to FIG.

In the embodiment shown in FIGS. 15 and 16, the rotation display means 91 for displaying the rotation of the air turbine 37 of the embodiment shown in FIGS. Is displayed.

That is, the rotation display means 100 has a substantially columnar rotating body 101 provided integrally with one end of the first rotating blade 63. On the outer peripheral surface of the rotator 101, different colors 93a and 93b are painted substantially every semicircle, similarly to the embodiment shown in FIGS. A window 95 closed by a translucent member 94 is formed in the upper body case 13 corresponding to the coloring position, and the rotating body 101 is rotated by rotation of the first blade 63 from outside.
Can be exposed through the translucent member 94.
And like the embodiment shown in FIGS. 1 to 11,
By the rotation of the first rotating blade 63, the rotation state of the rotating body 101 is displayed in a color corresponding to the rotating speed of the rotating body 101.

According to the configuration shown in FIGS. 15 and 16, the rotation state of the first rotary blade 63 can be directly recognized.

The coloring of the rotating body 101 is, for example, as shown in FIG.
As shown in the figure, a plurality of strips may be provided at predetermined intervals.

Next, still another embodiment will be described with reference to FIGS.

The embodiment shown in FIGS. 18 to 21 is different from the embodiment shown in FIGS. 1 to 11 in that the colored rotator 92 recognizes the rotation state of the air turbine 37. The rotation status of the air turbine 37 is displayed by sensing the rotation status of the air turbine 37 by magnetism.

That is, the rotation display means 110 is a disk-shaped rotator 111 similar to the embodiment shown in FIGS.
have. A magnet 112 is provided at a peripheral portion of the upper surface of the rotating body 111 so as to be opposed in the radial direction.

Further, the middle case 39 for partitioning the turbine chamber 38
On the upper surface of the upper case 41, a magnetic sensing means 113 as an element such as a Hall element for sensing magnetism when the magnet 112 approaches so as to face the periphery of the rotating body 111 is provided. The magnetic sensing means 113 is connected to a circuit board 116 provided in a circuit chamber 115 defined above the first suction chamber 21. Also, the circuit board 116 includes
A display control means 118 as a display unit composed of various electric components 117 is mounted, and the display control means 118 is provided with a display means 119 such as a light emitting diode.

Next, the display control means 118 will be described with reference to FIG.
This will be described with reference to FIG.

The display control means 118 has an amplifying section 121 to which the magnetic sensing means 113 is connected and which amplifies the signal from the magnetic sensing means 113. The amplifying unit 121 is connected to a control unit 122 for displaying, that is, emitting light on the display unit 119 in response to a signal indicating that the magnetism is detected by the magnetic sensing unit 113. Further, a power supply unit 123 for supplying DC power is connected to the control unit 122. The power supply unit 123 includes a charging unit 12 having a power generation unit 124 such as a dynamo that rotates and generates power with the rotation of the air turbine 37.
5 is connected, and can supply power and charge power as needed. Note that the power supply unit 123 is
May not be connected and power may be supplied by a dry battery or the like.

During cleaning, the rotating body 111 rotates together with the air turbine 37 rotated by the suction airflow, and the magnetic sensing means 113 senses magnetism. This magnetic sensing means 11
3 senses magnetism, and outputs a signal to that effect to the amplifying unit 121 of the display control means 118. Then, the signal output from the magnetic sensing means 113 is amplified by the amplifier 121, and the signal is detected by the controller 122. The control unit 122
In response to a signal input in a pulse form, the display means 119 emits light in a pulse form in accordance with the pulse of this signal to display. When the rotation speed of the rotator 111 is high and the pulse interval is short, the display means 119 emits light so as to emit light almost continuously. When the rotation speed of the rotator 111 is low and the pulse interval is long, the display means 119 emits light. The light emission interval of the means 119 becomes longer.

When the rotating body 111 stops in a state where the magnet 112 faces the magnetism sensing means 113, the magnetism is sensed for a predetermined time or longer without a pulse-like signal. The unit 122 determines that the air turbine 37 is not rotating, and performs control so that display by the display unit 119 is not performed.

According to the configuration shown in FIGS. 18 to 21, the display means 119 emits light to display the rotation status of the air turbine 37.
It is possible to recognize the rotation status of the first rotary blade 63 and the second rotary blade 64 that rotate with the rotation of 37.

It is to be noted that the display means 119 may be constituted by a plurality of light emitting diodes, and the light emitting state may be varied according to the pulse interval. According to this configuration, it is possible to further easily recognize the rotation state.

Although the description has been given by providing the magnet 112 on the rotating body 111, as shown in FIGS. 22 and 23, the magnet 112 is provided on the rotating body 131 provided at the end of the first rotating blade, and the magnet 112 is directly provided. The rotation display means 132 may be configured to display the rotation state of the first rotating blade.

[0092]

According to the first aspect of the present invention, the rotation display means displays the rotation state of the rotary cleaning body which is rotated by the suction airflow of the air turbine. The rotation state of the rotary cleaning body can be easily recognized, and it is possible to prevent cleaning in a state where the rotation of the rotary cleaning body has stopped, thereby improving the cleaning performance.

According to the second aspect of the present invention, the rotation state of the air turbine rotated by the suction airflow that rotates the rotary cleaning body is displayed on the rotation display means. By recognizing the rotation state of the rotary cleaning body, the rotation state of the rotary cleaning body can be easily recognized with a simple configuration, and it is possible to prevent cleaning while the rotation of the rotary cleaning body is stopped, thereby improving the cleaning performance.

According to the suction port of the vacuum cleaner according to the third aspect, in addition to the effect of the suction port of the vacuum cleaner according to the first or second aspect, the suction port rotates with the rotation of the rotary cleaning body or the air turbine. Since the window is provided in the case body so that at least a part of the rotating body having a plurality of colors can be exposed, the rotation state of the rotating cleaning body can be easily recognized with a simple configuration.

According to the suction port of the vacuum cleaner according to the fourth aspect, in addition to the effect of the suction port of the vacuum cleaner according to the first or second aspect, the suction port rotates with the rotation of the rotary cleaning body or the air turbine. The magnetism of the magnet provided on the rotating body is sensed by the element and displayed on the display unit in accordance with the sensing of the magnetism by the element, so that the rotation state of the rotating cleaning body can be easily recognized with a simple configuration. .

According to the suction port of the vacuum cleaner according to the fifth aspect, in addition to the effect of the suction port of the vacuum cleaner according to the fourth aspect, charging is performed with the rotation of the rotary cleaning body or the air turbine. Since charging means for supplying power to the display unit is provided, power can be efficiently supplied to the display unit with a simple configuration.

[Brief description of the drawings]

FIG. 1 is a partially cutaway plan view showing an embodiment of a suction opening of an electric vacuum cleaner according to the present invention.

FIG. 2 is a front sectional view of the same.

FIG. 3 is a sectional side view of the same.

FIG. 4 is a rear view of the same.

FIG. 5 is a bottom view of the same.

FIG. 6 is a side sectional view showing a relationship between the drive conversion unit and a first rotary blade and a second rotary blade.

FIG. 7 is a cross-sectional view showing the air turbine.

FIG. 8 is a bottom view of the same.

FIG. 9 is a plan view of the same.

FIG. 10 is a perspective view showing a first rotary blade of the above.

FIG. 11 is a sectional view of the same.

FIG. 12 is a plan view of a rotator showing another embodiment of the present invention.

FIG. 13 is a plan view of a rotator showing still another embodiment of the present invention.

FIG. 14 is a plan view of a rotator showing still another embodiment of the present invention.

FIG. 15 is a partially cutaway plan view showing a suction port main body according to still another embodiment of the present invention.

FIG. 16 is a front sectional view of the same.

FIG. 17 is a plan view showing a rotating body according to still another embodiment of the present invention.

FIG. 18 is a front sectional view showing a suction port main body according to still another embodiment of the present invention.

FIG. 19 is a plan view partially cut away from the above.

FIG. 20 is a sectional side view of the same.

FIG. 21 is a block diagram showing display control means according to the third embodiment;

FIG. 22 is a partially cutaway plan view showing a suction port main body according to still another embodiment of the present invention.

FIG. 23 is a front sectional view of the same.

[Explanation of symbols]

 11 Suction port body 15 Case body 37 Air turbine 63 First rotating blade as rotating cleaning body 64 Second rotating blade 91,100,110,132 as rotating cleaning body Rotating display means 92,101,111,131 rotation Body 93a, 93b, 93c Color 95 Window 112 Magnet 113 Magnetic sensing means as element 118 Display control means as display 125 Charging means

Claims (5)

[Claims] 1. A case body, an air turbine provided in the case body and rotated by a suction airflow, and a rotary cleaning body rotatably disposed facing a lower surface of the case body and rotated by rotation of the air turbine. And a rotation display means for displaying a rotation state of the rotary cleaning body. 2. A case body, an air turbine provided in the case body and rotated by a suction airflow, and a rotary cleaning rotatably disposed facing a lower surface of the case body and rotated with the rotation of the air turbine. A suction port body for a vacuum cleaner, comprising: a body; and rotation display means for displaying a rotation state of the air turbine. 3. A rotary display means comprising: a rotary cleaning body or a rotary body having a plurality of colors which rotates with the rotation of the air turbine; and a window provided on the case body and at least a part of the rotary body being visible. A suction port body for a vacuum cleaner according to claim 1 or 2, further comprising: 4. A rotating display means, comprising: a rotating body having a magnet that rotates with the rotation of the rotating cleaning body or the air turbine; an element for sensing the magnetism of the magnet; and sensing of magnetism by the element. The suction port of the vacuum cleaner according to claim 1, further comprising a display unit for displaying the suction port. 5. The vacuum cleaner according to claim 4, wherein the rotation display means includes charging means for charging the rotating cleaning body or the air turbine as the rotation of the air turbine rotates and supplying power to the display unit. Mouth.