KR100432556B1 - Inlet port member of vacuum cleaner and vacuum cleaner - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

Intake port of vacuum cleaner and vacuum cleaner

2. The technical problem to be solved by the invention

It provides a suction tube of a small electric vacuum cleaner which improves the cleaning efficiency with a simple structure, does not need a separate leak hole and reduces the rotation of the rotating vacuum cleaner even when lifted up.

3. Summary of Solution to Invention

The communicating plate 32 which is provided in the lower surface center of the case body 15, and communicates with the 1st suction port 20 and the 2nd suction port 23 by the suction air passage 34 in axial direction is supported. The shaft 52 of the flat air turbine 37 is positioned between the first cleaning chamber 18 and the second cleaning chamber 19 at approximately the center of the case body 15 so that rotation can be freely received. The turbine chamber 38 is provided. An intake air supply passage 43a is formed in a scroll shape in the front of the turbine chamber 38 through the intake port 44 on one side of the rear portion of the case body 15 in a scroll form. On the opposite side to the suction airway 34, drive transmission means for transmitting the drive of the air turbine 37 to the end portions of the rotary blades 63 and 64 is partitioned.

4. Important uses of the invention

By securing the negative pressure between the rotary blades 63 and 64 and the bottom surface, it can be driven by the high torque from the air turbine 37, improving the cleaning property and downsizing. When lifted up, the suction inlets 20 and 24 act as leak holes to reduce rotation.

Description

Inlet port member of vacuum cleaner and vacuum cleaner}

The present invention relates to a suction port and a vacuum cleaner of an electric vacuum cleaner provided with an air turbine for rotating and driving a rotary vacuum cleaner.

DESCRIPTION OF RELATED ART Conventionally, as a suction port of the vacuum cleaner provided with this kind of air turbine, the structure of US Patent 2904816 and Japanese Unexamined-Japanese-Patent No. 7-59685 is known, for example.

The suction inlet of the vacuum cleaner described in this US Patent 2904816 has a suction air passage between a suction chamber for freely rotating the vacuum cleaner and opening the suction port on the lower surface thereof, and a communication tube to which a hose, an extension tube, or the like is connected. Moreover, the intake air flow path provided in the middle of the turbine chamber which rotates freely the flat type air turbine which rotates by rotation of an intake air and rotates a rotary cleaning body between the intake port opened to an upper surface, and a communication pipe | tube is rotated. Then, the valve body is provided at the confluence portion between the suction air passage and the intake air passage, and the suction air passage is opened and closed by the switching operation of the valve body to adjust the suction amount and the intake air amount.

By the way, in the suction inlet of the conventional vacuum cleaner described in this US Patent 2904816 specification, since there is only one rotary cleaning body, for example, the seams and hairs etc. which adhered to a carpet etc. are not scraped enough, and the improvement of cleaning property is desired. Can not.

Therefore, in the suction inlet of the conventional vacuum cleaner, the structure which provided two rotary cleaners in the front-back direction of a running direction in order to improve cleaning property is known.

Therefore, in the suction port of the conventional vacuum cleaner described in US Patent 2904816, it is also conceivable to provide a plurality of rotary cleaners. By the way, since the suction chamber accommodates the rotary cleaner in the suction chamber, the opening area of the suction slot is increased, the amount of intake air from the suction port is reduced, and sufficient torque for rotating the two rotary cleaners cannot be obtained. .

In addition, simply providing a plurality of rotary cleaners in the suction inlet of the conventional vacuum cleaner described in US Patent No. 2904816 does not allow miniaturization of the suction inlet, and it is complicated to clean a narrow place such as a gap in furniture. Become.

In addition, in the suction port of the vacuum cleaner described in US Patent No. 2904816, the suction amount from the suction port increases when the suction port is lifted, so that the amount of intake air from the suction port decreases and the rotation speed of the air turbine decreases. However, the amount of intake air from the intake port does not decrease until the air turbine almost stops. On the other hand, if the ratio between the intake amount and the intake amount is set such that the air turbine almost stops when lifted up, the torque of the air turbine cannot be sufficiently obtained at the time of cleaning.

On the other hand, the suction port of the vacuum cleaner described in Japanese Patent Laid-Open No. 7-59685 has an air turbine which has a plurality of blades and rotates by an intake air flow between the suction port and the communication pipe connected to the hose or extension tube. Rotation is freely supported by the rotating shaft. Then, the rotating cleaning body is rotated by the rotation of the air turbine by walking across the endless belt to the pulley provided at the end of the rotating shaft and the end of the rotating cleaning body. In addition, the bypass air passage is formed through the suction air passage in succession. In addition, a wheel separate from the traveling wheel is axially supported by the movable member having a valve body for opening and closing the bypass air passage.

When the driving wheel is installed on the floor with the suction port facing the floor, the wheel is immersed in the case body at the bottom surface, the valve body closes the bypass passage, and the air turbine is efficiently flowed by the intake air flow from the suction port. By rotating, the rotary cleaning body rotates. In addition, when the traveling wheel is lifted from the bottom surface, the wheel protrudes downward to move the movable member to open and bypass the bypass air passage through the valve body to reduce the rotation of the air turbine.

By the way, in the suction inlet of the conventional vacuum cleaner described in this Unexamined-Japanese-Patent No. 7-59685, the intake air flow path through which dust flows and the intake airflow which rotates an air turbine are the same path | route. For this reason, dust adheres to the air turbine and the air turbine cannot smoothly rotate. In addition, there is a need for a means for detecting lifting of the inlet port and a valve body for opening and closing the leak port, which has the same problem as the inlet port of the conventional vacuum cleaner described in the above-mentioned US Patent 2904816.

As described above, in the suction inlet of the conventional vacuum cleaner described in US Patent No. 2904816, since there is only one rotary cleaner, it is impossible to improve the cleaning property, and for testing, simply by providing a plurality of rotary cleaners, Miniaturization of the suction inlet can not be achieved, and cleaning of narrow places such as gaps of furniture is complicated. In addition, if the suction amount and the intake air amount are set so that the rotational torque can be sufficiently obtained, the reduction of the rotation of the air turbine when lifting is insufficient.

On the other hand, in the Japanese Unexamined Patent Publication No. 7-59685, a member for opening and closing a leak port that lowers the rotation of the air turbine when the suction port is lifted up is required. At the same time as the cost increases, dust adheres to the cover body that opens and closes the leak opening, and a reliable operation of the cover cannot be obtained. In addition, since the intake air flow path that rotates the dust and the intake air to rotate the air turbine is the same path, there is a problem that the air turbine can not rotate smoothly because the dust is attached to the air turbine.

The present invention has been made in view of the above problems, and even if a member for opening and closing the leak hole is unnecessary and the suction inlet body of the vacuum cleaner, in which the rotation of the rotating cleaner is reduced even in the state of being lifted in a simple structure, and also using an air turbine, An object of the present invention is to provide a suction port of a small vacuum cleaner with improved cleaning efficiency, and an vacuum cleaner having the suction port of these vacuum cleaners.

1 is a partially cutaway plan view showing one embodiment of the inlet port of the vacuum cleaner of the present invention;

2nd degree, his bottom view,

Third degree, his back view,

4 is a front cross-sectional view thereof,

5 is a side cross-sectional view thereof,

6 is a side cross-sectional view showing the relationship between the drive converting means and the first rotating blade and the second rotating blade;

7 is a cross-sectional view showing an air turbine thereof;

8 degrees, his bottom view,

9th, his top view,

10 is a perspective view showing a first rotating blade thereof;

11th degree, his section,

12 is an explanatory diagram illustrating a situation in which dust is moved by the rotation of the rotating blade thereof.

Explanation of symbols for main parts of the drawings

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11: inlet body 12: lower body case

13: upper body case 14: bumper

15: case body 17: rib portion

18: first cleaning chamber 19: second cleaning chamber

20: first suction port 21: first suction chamber

22: first drive transmission chamber 23: second suction port

24: second suction chamber 25: second drive transmission chamber

27: communication groove groove 28: communication stove

32: communication tube 34: suction stove

37: air turbine 38: turbine chamber

39: middle case 40: lower case

41: upper case 43: intake air passage

43a: intake air supply path 44: intake port

47: first bearing 48: rib

52: shaft 53: shaft support

54: rectification plate 55: windshield

56: air turbine pulley 58: driven rear wheels

60: driven front wheel 61: driven front room

63: first rotating blade

64: second rotating blade

65: groove 66: mandrel

67 blade portion 68 board portion

69: pedestal 70: Jimo

71: fabric blade 72: double blade portion

73: brushed 75: pulley

76 shaft portion 77 bearing

79: drive conversion means 81: first shift

82a: first endless belt 82b: second endless belt

82c: third endless belt 84a: first bevel gear

84b: second bevel gear 85: second shift

86: third shift 87: second pulley

88a: first gear 89: third pulley

90 dust

The suction inlet of the vacuum cleaner according to the first embodiment of the present invention is provided with a groove-shaped cleaning body chamber, which is provided in a plurality in the front and rear direction of the traveling direction on the lower surface facing the surface to be cleaned and opened downward, and between these cleaning body chambers. A case body having a leak opening on the lower surface of the lower surface and an intake opening separately from the leak opening, and a communicating tube provided on the case body and connected to the leak opening and connected to the intake opening via an intake air passage. Each of the cleaning chambers of the case body is provided with a rotary cleaning body, the rotation of which is freely disposed, and an air turbine freely installed in the intake air passage and rotating the rotary cleaning body by the intake airflow. At the time of cleaning, the negative pressure near the leak port formed on the lower surface of the case body is secured by the rotary cleaning body and the surface to be cleaned disposed in the cleaning chamber located before and after the running direction, When the air turbine freely rotated in the intake air passage rotates, the rotating cleaning body rotates to scrape dust from the surface to be cleaned, and the case body lowers a predetermined distance from the surface to be cleaned by lifting the case body. The leak port of the lower surface of the sieve is opened to increase the suction amount from the leak port, and at the same time, the amount of intake air from the intake port is reduced, thereby reducing the rotation of the air turbine and reducing the rotation of the rotary cleaning body.

The suction port of the vacuum cleaner according to the second embodiment of the present invention is the suction port of the vacuum cleaner according to the first embodiment, wherein the case body includes a communication air passage that allows the cleaning chamber and the leak port to communicate with each other. The dust in the cleaning chamber, scraped off by the rotary cleaning body, is easily sucked from the leak port via the communication air passage, and the air path from the leak hole to the communication tube is also used as the dust suction air passage, thereby simplifying the configuration.

The suction port of the vacuum cleaner according to the third embodiment of the present invention is the groove of the suction port of the vacuum cleaner according to the second embodiment in the form of a groove opening toward the lower side. And when cleaning, the groove-shaped communication air passage forms the air passage which connects the cleaning chamber and the suction inlet to the surface to be cleaned and the lower surface of the case body, so that the dust in the cleaning body chamber scraped off by the rotary cleaning body is used to create the groove-like communication air passage. It is easily sucked into the leak hole without being caught by this communication passage through.

The suction inlet of the vacuum cleaner according to the fourth embodiment of the present invention is provided with a recess-shaped cleaning body chamber and a plurality of cleaning body chambers which are located in the front-rear direction of the traveling direction on the lower surface facing the surface to be cleaned and are opened toward the lower side; Is a case body having a separately opened inlet port, a communication tube installed in the case body and connected to the cleaning body chamber through the intake air passage through the intake air passage, and rotating in each cleaning body chamber of the K body. A rotary cleaning body disposed freely and an air turbine freely installed in the intake air passage by the shaft located in the up-down direction between the cleaning chambers and an air turbine for rotating the rotating cleaning body by the intake air flow. will be. Since the air turbine is disposed along the up and down direction in the axial direction between the rotary bodies of the air turbines, the air turbines rotated by the intake airflow are superposed on each rotary cleaners in the vertical direction. Even if a plurality of rotating vacuum cleaners driven by an air turbine are provided in order to improve the performance, the dimensions before and after the running direction are reduced, so that it can be easily used.

The suction port of the vacuum cleaner according to the fifth embodiment of the present invention is the suction port of the vacuum cleaner according to the fourth embodiment, wherein the shaft is disposed between the cleaning chambers and disposed below the upper end of the rotary vacuum cleaner. It is supported by the shaft. And since the bearing which supports the festival of an air turbine was arrange | positioned below the upper end of a rotary cleaning body, the dimension of an up-down direction was reduced and it can be miniaturized easily.

In the suction port of the vacuum cleaner according to the sixth embodiment of the present invention, in the suction port of the vacuum cleaner according to the fourth embodiment, the drive transmission means for transmitting the rotational drive of the air turbine to the end of the rotary vacuum cleaner; It is located between the cleaning chambers and located below the top of the rotary cleaning body. In addition, since the drive transmission means for transmitting the rotational drive of the air turbine to the rotary cleaning body is provided from the upper end of the rotary cleaning body, the dimension of the up and down direction can be reduced, thereby making it easy to downsize. Since the rotary drive of the air turbine is transmitted to the end of the rotary cleaning body, the drive transmission means can be easily arranged in a simple configuration.

The suction inlet of the vacuum cleaner according to claim 7 is provided with a groove-shaped cleaning body chamber which is provided in a plurality in the front and rear direction of the traveling direction on the lower surface facing the surface to be cleaned, and opens toward the lower side, and these cleaning bodies. A case body having an intake port that is opened separately from the seal, a communication tube provided in the case body and connected through the intake air passage through the intake air passage, and communicating through the intake air passage through the intake air passage, and each case of the case body. Rotating cleaners each freely disposed in the cleaning chamber, and shafts disposed axially along the up and down direction between the cleaning chambers, are freely installed in the intake air passage, and the rotating cleaning body is driven by the intake airflow. Between the air turbine and the cleaning chamber, the air turbine opposite to the suction air passage. Installation hayeoseo hayeoseo position and transmit the rotational driving of the air turbine to said rotary cleaning body is provided with a drive transmitting means for rotating the rotary cleaning body. Then, the shaft of the air turbine that rotates in the intake air flow is positioned between the plurality of rotary cleaning bodies in the axial direction along the vertical direction, and on one side of the air turbine, an intake air passage for communicating with the communication pipe from the cleaning chamber is provided. Since the drive transmission means for transmitting the rotary drive of the air turbine to the rotary cleaner on the other side is disposed between the cleaning chambers, the air turbine is positioned on the rotary cleaner in the vertical direction. The suction air passage and the drive transmission means do not overlap in the vertical direction, and the dimensions in the front and rear and up and down directions are reduced, so that the size can be easily downsized, and the drive transmission means can be easily arranged in a simple configuration. The adhesion of dust to the drive transmission means is prevented.

The suction inlet of the vacuum cleaner according to the eighth embodiment of the present invention is provided with a recess-shaped cleaning body chamber and a plurality of cleaning body chambers which are located in the front-rear direction of the traveling direction on the lower surface facing the surface to be cleaned and are opened downward. Is a case body having a separate inlet opening, a communication tube installed in the case body and connected through the intake air passage through the intake air passage, and communicating through the intake air passage through the intake air passage, and the respective cleaning of the case body. The rotary cleaning body is disposed in the chamber chamber freely rotated, and the shaft is located in the up and down direction in the axial direction between the cleaning chamber, the rotation is freely installed in the intake air passage to rotate the rotary cleaning body by the intake air flow The turbine chamber which accommodates an air turbine is provided, The said intake air path flows intake air into the said turbine chamber. For the class supplied intake air passage to the air turbine it would have on the other side with the intake air passage. Then, the shaft of the air turbine is positioned between the plurality of rotary cleaning bodies in the axial direction along the up and down direction, and on one side of the air turbine, a suction air passage for communicating with the communication pipe from the cleaning chamber in the front of the traveling direction is provided. Since the intake air supply passage for supplying the intake air flow is installed in the turbine chamber accommodating the air turbine on the other side, the air turbine is placed on the rotary cleaning body in the up and down direction, and the intake air and the intake supply air passage are in the up and down direction. There is no overlap, the dimensions in the front-back direction and the vertical direction are reduced, and the size can be easily reduced.

The vacuum cleaner which concerns on 9th Embodiment of this invention is equipped with the suction body of the vacuum cleaner which concerns on 1st-8th embodiment, and the vacuum cleaner main body with which the suction port of this vacuum cleaner is connected. The rotation of the rotary cleaning body is reduced even when the member for opening and closing the leak port is not necessary and is lifted with a simple structure. Moreover, since the suction inlet body of the vacuum cleaner of any one of 1st Embodiment-8th Embodiment which improves a cleaning efficiency even if it uses a small size and an air turbine is provided, cleaning property improves.

[Embodiment]

EMBODIMENT OF THE INVENTION Hereinafter, the structure which showed one Embodiment of the intake port of the vacuum cleaner of this invention is demonstrated with reference to drawings.

1 to 6, reference numeral 11 denotes a suction inlet body that is long in the traveling direction, and the suction inlet body 11 includes a lower body case 12, which is a synthetic resin product such as acrylonitrile-butadiene-styrene resin. In addition, the upper body case 13 of the same material is fixed to the upper portion of the lower body case 12, the bumper 14 along the circumferential surface including the front surface of the lower body case 12 and the upper body case 13 Is fitted, and the rectangular case body 15 is formed.

The lower body case 12 is formed with a rib portion 17 substantially perpendicular to the upper surface. By this rib part 17, the 1st cleaning body chamber 18 of the groove shape opening to the front side which is an advancing direction substantially horizontally in the left-right direction, and to a lower surface is partitioned. Further, a second cleaning body chamber 19 having a concave groove opening on the lower surface in the same shape on the rear side in the retreat direction and in the horizontal direction in the substantially left and right directions is partitioned. In addition, the lower body case 12 is divided by a rib portion 17 at one end from an approximately center between the first cleaning body chamber 18 and the second cleaning body chamber 19, and has a leak hole on the lower surface thereof. A first suction chamber 21 which opens the first suction port 20 which also functions as a first drive, a first drive transmission chamber 22 partitioned from the center to the other end, and is partitioned about the center of the rear part; The second suction chamber 24 which opens the 2nd suction opening 23 which has a function as a leak hole in the substantially center of the upper surface of the 2nd cleaning chamber 19, and connects to the 1st suction chamber 21 in succession, A second drive transfer chamber 25 partitioned from the first drive transfer chamber 22 to the other end side is formed. In addition, the opening area of the first suction port 20 is larger than the opening area of the second suction port 23.

In addition, the lower surface of the lower body case 12 is located on the opposite end side of the first suction port 20 to communicate with the first cleaning body chamber 18 and the second cleaning body chamber 19. The groove-shaped communication groove portion 27 to be formed is formed, and the groove-shaped communication air passage 28 through which the first cleaning body chamber 18 and the first suction port 20 communicate with each other is formed. have.

In addition, the lower surface of the second drive transmission chamber 25 is opened downward, and the closure plate 29 is attached to the opening freely by the mounting holes 30 and is detachably attached thereto.

In addition, in the rear center of the case body 15, the communication tube 32 rotates the rotation shafts 33 and 33 to the lower body case 12 and the upper body case 13 to face the second suction port 23. It is axially supported by the rotary motion and is attached freely at a predetermined angle in the vertical direction. And the 1st suction chamber 21 and the 2nd suction chamber 24 comprise the suction airflow path 34 through the communication pipe 32 successively. Further, the rear end of the communication tube 32 protrudes outward from the inlet main body 11, and the rear end of the communication tube 32 is freely fitted with the rotational movement of the bent connection tube 35. The connecting pipe 35 is connected to the hose freely via an extension pipe (not shown) and detached from the hose, and is connected to a vacuum cleaner main body (not shown).

And since the distance from the communication pipe 32 is closer than the 1st suction port 20, the 2nd suction port 23 of the opening area smaller than the opening area of the 1st suction port 20 is a 1st suction port. The suction force from the inlet and outlet 20 is approximately equal to the suction force from the second suction port 23.

On the other hand, in the center of the case body 15, the intermediate case 39 which partitions the turbine chamber 38 which accommodates the air turbine 37 which becomes a flat drive means inside freely in rotation is attached and fixed. The intermediate case 39 is formed of a substantially funnel-shaped lower case 40 having a large upper diameter and a lower diameter and an upper case 41 which closes an upper portion of the lower case 40. .

In addition, the intermediate case 39 is provided with an intake air supply passage 43a along the circumferential direction of which one end widens in a trumpet shape toward the circumferential direction and the other end opens in the turbine chamber 38. The intake air supply passage 43a is formed through the turbine chamber 38 in a scroll form so that the width thereof becomes narrower and the cross-sectional area gradually decreases, and the intake airflow is supplied to the air turbine 37 in a spiral shape. In addition, the upper surface of a part of the intake air supply passage 43a leading to the turbine chamber 38, that is, the upper surface of the intake air supply passage 43a located in front of the case body 15 is the upper body case 13. Configure. One end opening in the trumpet shape of the intake air supply passage 43a is formed on the rear surface of the rear body of the upper body case 13 and on the two surfaces of the upper surface continuous to the rear surface. It is getting through one after another. In addition, the inlet port 44 is formed by drilling a plurality of small diameter holes, and is formed on one side of the communication pipe 32 to form an opening.

In addition, a communication hole 45 is formed in the surface facing the second suction chamber 24 of the intermediate case 39, and the intake air supply passage 43a, the turbine chamber 38, and the communication hole are formed from the intake port 44. An intake air passage 43 is formed in communication with the second suction chamber 24 via the hole 45. Moreover, since the communication hole 45 opens opposite the 2nd suction chamber 24, it is located in the intake air path 43 from the turbine chamber 38 to the communication pipe 32, ie, downstream of the air turbine 37. In addition, as shown in FIG. The first suction port 20 is successively opened via the suction air passage 34, and the second suction port 23 is directly opened.

In the center of the lower surface of the upper case 41 of the intermediate case 39, a bearing attachment rib 48 for attaching the first bearing 47, which is a bearing, is formed. In addition, in the center of the upper surface of the lower case 40 of the intermediate case 39, a bearing attachment rib 50 is formed to attach the second bearing 49 bearing on the same axis as the first bearing 47. have.

Moreover, as shown in FIGS. 7-9, the air turbine 37 is a rectifying plate which spreads toward one end side to the circumferential surface of the substantially cylindrical shaft support part 53 which inserted the rod-shaped shaft body 52. As shown in FIG. 54 is provided. A plurality of curved windshields 55 and 55 protrude in a wall shape on the surface of the other end near the periphery of the rectifying plate 54 in a substantially radial shape. Moreover, the air turbine pulley 56 is integrally provided in the end part of the side in which the windshield 55, 55 of the shaft 52 was provided.

In the air turbine 37, the air turbine pulley 56 protrudes from the lower end of the intermediate case 39 in response to the first drive transmission chamber 22. In addition, both ends of the shaft body 52 are axially supported by the 1st bearing 47 and the 2nd bearing 49 in the axial direction substantially up-down direction. The air turbine 37 is axially supported in the turbine chamber 38 freely by rotation. Moreover, the intermediate case 39 is accommodated and fixed in the case body 15 so that the 2nd bearing 49 may be located substantially in the center between the 1st cleaning body chamber 18 and the 2nd cleaning body chamber 19. As shown in FIG. It is.

Further, a driven rear wheel room 59 is formed on both sides of the communication tube 32 of the lower body case 12, in which the driven rear wheel 58 is freely supported by rotation. Further, at both ends, a driven front wheel chamber 61 in which driven front wheels 60 are freely rotatable is formed.

On the other hand, in the 1st cleaning body chamber 18 and the 2nd cleaning body chamber 19, the 1st rotating blade 63 and the 2nd rotating blade 64 which are rotational cleaning bodies are arrange | positioned freely, respectively. . The second rotary blade 64 has, for example, a core rod 66 formed with a spiral alloy groove 65 in the axial direction on the circumferential surface of an aluminum alloy or the like. Moreover, the groove part 65 of this core rod 66 has a plurality of blade parts 67 which are a scraping means as a cleaning body of flexible vinyl chloride products, for example in a wall shape on four outer peripheral surfaces. It is fitted in a spiral shape to protrude. Moreover, this blade part 67 is comprised by forming the base part 69 which one edge of the elongate planar board part 68 in the longitudinal direction engages with the groove part 65 of the core rod 66 thickly. It is.

Moreover, the 1st rotating blade 63 is a fabric which is a floor friction means as a cleaning body in which the outer peripheral surface was flexible and the brush 70 was formed in one surface, as shown in FIG. 10 and FIG. A plurality of blades 71 and a double blade portion 72 serving as a scraping means as a cleaning object having a flexible cross section having a substantially Y-shape are spirally provided in plural, for example, two sheets alternately. In addition, the fabric blade portion 71 is, for example, a pedestal portion of a soft vinyl chloride product at one edge in the longitudinal direction of the elongated board-shaped brushed cloth 73 in which a brush 70 is formed on one surface of a polyester product. It is comprised by forming 69 thick. The double blade portion 72 is formed in a substantially Y-shaped cross section like a branch where the board portion 68 is split from the board portion 68 of the blade portion 67. The length dimension protruding from the mandrel 66 of the nonwoven blade portion 71 is longer than the length dimension protruding from the mandrel 66 of the double blade portion 72. For this reason, when the surface to be cleaned is a floor, only the nonwoven blade portion 71 can be brought into contact with the floor to achieve a flooring effect of wiping the floor.

Further, pulleys 75 are integrally formed on the core rod 66 at one end of the first rotating blade 63 and the second rotating blade 64. In addition, each of the first and second rotation blades 63 and 64 rotates the pulleys 75 and 75 in the second drive transmission chamber 25 and rotates at both ends in the axial direction. The freely provided shaft portions 76 and 76 are engaged with the bearings 77 and 77 provided in the case body 15, respectively, so that rotation is freely supported.

Further, the first rotating blade 63 and the second rotating blade 64 are formed so that the dimension of the outer diameter is the small diameter of the first rotating blade 63 piece, the lower end of each of the first cleaning chamber chamber It protrudes slightly downward from the opening of the lower surface of 18 and the 2nd cleaning body chamber 19. As shown in FIG. In addition, the first rotary blade 63 and the second rotary blade 64 are driven front wheels 60, 60 and driven rear wheels 58, 58 only at the front end portion of the nonwoven blade unit 71. It is installed to protrude downward from the ground plane to be formed.

On the other hand, in the first drive transmission chamber 22, drive conversion means 79 which is a drive transmission means is disposed. As shown in FIGS. 1, 4 and 6, this drive conversion means 79 is located in the box body 80 disposed on the end of the first drive transmission chamber 22 in the axial direction. Rotation is freely axially supporting the first rod-shaped first shaft 81 along the vertical direction. At the lower end of the first shaft 81, a first pulley 83 through which the first endless belt 82a serving as a drive transmission means is crossed by the air turbine pulley 56 of the air turbine 37. ) Is provided in the first drive transmission chamber 22. In addition, a first bevel gear 84a is provided at the upper end of the first shaft 81.

In addition, in the box 80, a substantially rod-shaped second shaft 85 and a third shaft 86 can be freely rotated up and down substantially parallel in the transverse-long direction of the case body 15. Excreted. The second shaft 85 is provided with a second bevel gear 84b that engages with the first bevel gear 84a of the first shaft 81 at one end thereof. The second shaft 85 is provided with a second pulley 87 facing the second drive transmission chamber 25 at the other end. In addition, the second shaft 85 is provided with the first gear 88a at one end side from the middle portion. In addition, at one end of the third shaft 86, a second gear 88b that engages with the first gear 88a of the second shaft 85 is provided. At the other end of the third shaft 86, a third pulley 89 facing the second drive transmission chamber 25 is provided. Then, the second endless belt 82b serving as the drive transmission means crosses the second pulley 87 of the second shaft 85 to the pulley 75 of the first rotary blade 63. Hanging In addition, in the third pulley 89 of the third shaft 86, the third endless belt 82c serving as a drive transmission means to the pulley 75 of the second rotating blade 64 is substantially horizontal. It is crossed over.

Also, as shown in FIG. 6, the center of the second shaft 85 is located at a second rotation blade (rather than an intermediate position between the first rotation blade 63 and the second rotation blade 64). So that the distance between the second shaft 85 located at the upper side 64, that is, the upper side, and the first rotating blade 63 which is inclined to the second shaft 85 and is crossed. Position it. Further, the third shaft 86 is located in a substantially horizontal direction with respect to the second rotating blade 64 which is substantially horizontally crossed with the third shaft 86, and the third shaft The distance between the 86 and the second rotating blade 64 is shortened.

Then, the first shaft 81 rotates through the first endless belt 82a by the rotation of the air turbine 37, and the first bevel gear 84a and the second by the rotation. The second shaft 85 rotates via the bevel gear 84b. With the first gear 88a and the second gear 88b engaged with each other by the rotation of the second shaft 85, the third shaft 86 is the second shaft 85. Rotate in the opposite direction to. Moreover, the 1st rotating blade 63 rotates forward with respect to the advancing direction of the suction port main body 11 through the 2nd endless belt 82b. In addition, the second rotating blades 64 are rotated counterclockwise, that is, inwardly rotated with respect to the advancing direction of the suction port main body 11. Moreover, the 1st rotating blade 63 is made to rotate toward the raising 70 side of the nonwoven blade part 71. As shown in FIG.

Next, operation | movement of the said embodiment is demonstrated.

When cleaning, the suction port main body 11 is connected to the vacuum cleaner main body which is not shown through an extension pipe and a hose. Next, the end of the hose is extended while holding the end of the hose, and the suction port main body 11 is driven back and forth while being in contact with the floor surface to be cleaned.

In addition, the suction force of the vacuum cleaner main body sucks in from the intake port 44 and also sucks in from the first suction port 20 and the second suction port 23. Here, since the inlet body 11 is placed on the bottom surface, the first inlet 20 is located between the first rotary blade 63 and the second rotary blade 64. For this reason, it seals with these 1st rotating blade 63 and the 2nd rotating blade 64, and a bottom surface, and the negative pressure of the lower surface of the inlet body 11 increases. By the way, since the 2nd suction port 23 whose distance from the communication pipe 32 is closer than the 1st suction port 20 opens in the 2nd cleaning body chamber 19, the air path to the 2nd rotating blade 64 is carried out. Resistance increases. In addition, the opening area is smaller than the opening area of the first suction port 20. For this reason, the suction force from the 1st suction port 20 and the suction force from the 2nd suction port 23 become about the same. Therefore, the negative pressure of the lower surface of the suction port main body 11 in which the ratio of the suction amount from the 1st suction port 20 and the 2nd suction port 23 and the suction amount from the suction port 44 of the same degree opposes a floor surface. By increasing the ratio, the amount of intake air from the intake port 44 increases.

In addition, when the bottom surface is a carpet, especially a long carpet, such as a carpet, the 1st suction port 20 which opposes a floor surface will become clogged. Therefore, the negative pressure piece of the lower surface of the inlet body 11 in the case where the bottom surface is a carpet or the like becomes larger than the negative pressure of the lower surface of the inlet body 11 in the case where the floor surface is a floor room, etc., and at this time, the negative pressure piece from the inlet port 44 Intake air volume increases.

Then, the air taken in from the intake port 44 passes through the trumpet-shaped intake supply air passage 43a whose cross-sectional area gradually decreases, and reaches the turbine chamber 38 in a vortex form. By the vortex intake airflow, the air turbine 37 rotates at a speed proportional to the intake air amount. This rotational driving force is transmitted to the drive converting means 79 via the first endless belt 82a. In addition, the drive converting means 79 converts the rotational drive in the vertical direction to two rotational drive forces in the horizontal direction. In addition, the first rotary blade 63 and the second rotary blade 64 are opposite to each other at a speed proportional to the intake air amount through the second endless belt 82b and the third endless belt 82c. Rotate Then, the dust 90 is scraped off from the bottom surface by the rotation of the first rotating blade 63 and the second rotating blade 64. Moreover, the dust 90 located in this scraped-out 1st cleaning chamber 18 is sucked in from the 1st suction port 20 through the communication air path 28. As shown in FIG. Moreover, the dust 90 located in the 2nd cleaning body chamber 19 is sucked in from the 2nd suction port 23 as it is. Moreover, the intake airflow which flowed into the turbine chamber 38 flows from the 2nd suction chamber 24 to the communication tube 32 via the communication hole 45. As shown in FIG.

The first suction port 20 is located in the spiral direction of the first rotary blade 63. For this reason, as shown in FIG. 12, the dust 90 in the 1st cleaning chamber 18 is a spiral direction in the suction direction and the rotational direction, ie, the fabric blade part 71 and the double blade part in a rotating state. The direction guided by 72 becomes the same direction. Accordingly, the dust 90 scraped off from the bottom surface is sucked into the first suction port 20 through the communication air passage 28 through the suction force and the fabric blade portion 71 and the double blade portion 72 smoothly. . In addition, the second suction port 23 is opened substantially in the center of the second cleaning body chamber 19, and the second rotary blade 64 has a spiral direction opposite to the first rotary blade 63. It is reverse rotation. For this reason, the direction to be suctioned by the suction force and the direction to be guided by the blade portion 67 become opposite directions. Therefore, some dust 90 which is not sucked in from the 2nd suction port 23 is moved in the direction which falls from the 2nd suction port 23 in the blade part 67. FIG. Then, the communication recess 27 is located between the second cleaning body chamber 19 and the first cleaning body chamber 18, which are located at the end of the guide side and installed on the opposite side to the first suction port 20. Then, it is led to the 1st cleaning chamber 18, and is sucked into the 1st suction port 20 through the communication air path 28. As shown in FIG.

Moreover, in the case of floor flooring etc., only the nonwoven blade part 71 of the 1st rotating blade 63 located in the direction of a running direction contacts a flooring room, and sweeps the dust 90 of a flooring direction to the wall. At the same time as raking, the floor to the wall is floored.

By the way, the air intake port 44 has an opening area smaller than that of the first intake port 20 and the second intake port 23, and the air turbine 37 which becomes the air flow resistance in the intake air passage 43 is located. For this reason, it is hardly sucked in from the 1st suction port 20 and the 2nd suction port 23, and it is a grade to which the suction power from the 1st suction port 20 and the 2nd suction port 23 falls. In addition, since the dust 90 is scraped off by the rotational driving of the first rotating blade 63 and the second rotating blade 64, it is easy to inhale and hardly remains due to the lowering of the suction force.

Here, when the hose is placed on the floor by moving the furniture or the like, the lower surface of the suction port main body 11 falls off from the floor or sucks a large thing into the first suction port 20 and the second suction port 23. It is necessary to remove these in the case of blocking or when seams or hairs stick to the first rotating blade 63 and the second rotating blade 64. For this reason, when the inlet body 11 is lifted from the bottom surface, the indentation of the lower surface to the inlet body 11 decreases, and the suction amount and the inlet port from the first inlet 20 and the second inlet 23 are reduced. The ratio with the suction amount from 44 is a ratio at which the intake amounts from the first suction port 20 and the second suction port 23 increase. In addition, the first inlet 20 is continuously opened via the intake air passage 34, which is located downstream of the air turbine 37 from the turbine chamber 38 of the intake air passage 43 to the communication tube 32. At the same time, the second suction port 23 directly opens. For this reason, the intake air flow in the intake air passage 43 which generate | occur | produces the intake air from the intake port 44 greatly reduces by the ratio which the intake amount from the 1st intake port 20 and the 2nd intake port 23 increases. . Therefore, the air turbine 37 lowers or stops the rotational speed, and the rotational speed of the first rotational blade 63 and the second rotational blade 64 also decreases or stops.

And, when removing the first rotary blade 63 and the second rotary blade 64 to remove the seams or hair stuck to the first rotary blade 63 and the second rotary blade 64 and the like. The closing plate 29 is removed by removing the mounting tool 30. After this, the shaft portion 76 on the side where the pulley 75 is not provided is moved to the lower side of the pulley 75 side as a support point, and the shaft portion 76 on the pulley 75 side is removed from the bearing 77. Serve Next, the pulley 75 can be removed from the second endless belt 82b and the third endless belt 82c, and the shaft portion 76 serving as a supporting point can be removed from the bearing 77. In addition, the reverse operation is performed when woven together.

According to the said embodiment, when cleaning, the 1st rotating blade 63 arrange | positioned at the 1st cleaning body chamber 18 and the 2nd cleaning body chamber 19 which are located in the front and back of the running direction of the inlet body 11 are clean. And a first suction port 20 formed between the first cleaning body chamber 18 and the second cleaning body chamber 19 on the lower surface of the case body 15 by the second rotating blade 64 and the bottom surface. ) Negative pressure in the vicinity is secured. For this reason, the air turbine 37 installed in the turbine chamber 38 in the intake air passage 43 freely rotates by the intake air flow from the intake port 44, so that the first rotating blade 63 and the second rotating blade 63 are rotated. The rotary blade 64 rotates to scrape off the dust 90 from the bottom surface. The dust 90 is efficiently sucked and cleaned from the first suction port 20 and the second suction port 23 in which the negative pressure is secured via the suction air passage 34. In addition, when the lower surface of the case body 15 has a predetermined distance from the surface to be cleaned, for example, by lifting the case body 15, the first suction port 20 and the second suction port of the lower surface of the case body 15 are removed. 23 is opened. For this reason, the suction amount from the 1st suction port 20 and the 2nd suction port 23 increases, and the intake amount from the suction port 44 decreases. Therefore, the rotation of the air turbine 37 can be attenuated and the rotation speed of the first rotary blade 63 and the second rotary blade 64 can be reduced.

For this reason, when it is placed on the bottom surface when cleaning, it is sealed by two rotary blades 63, 64 and the bottom surface, so that negative pressures around the two suction ports 20, 23 can be ensured. Can be. In addition, when the suction port main body 11 is lifted, the rotation of the air turbine 37 is reduced and the rotation of each of the rotary blades 63 and 64 is reduced, so that opening and closing means for opening and closing the leak port is unnecessary and simple. The structure can easily reduce the rotation of each of the rotary blades 63 and 64, so that the compact and lightweight can be easily achieved. In addition, the wind noise caused by the rotation of each of the rotary blades 63 and 64 can be reduced.

In addition, since the first cleaning body chamber 18 and the first suction port 20 were connected to the communication air passage 28, the scraped dust 90 was removed from the first suction port 20 where the negative pressure was ensured. It can be suctioned easily. That is, when the suction inlet main body 11 is lifted up, it has a function as a leaking hole for lowering the rotation of the air turbine 37, and at the same time, both of the functions as the suction inlet can be made to suck in the dust 90. .

And since this communicating air path 28 is groove-shaped, it can prevent that dust 90 catches up compared with the case where it is formed in tubular shape etc., and repairs, such as removal of the dust 90, etc. Management can be made easy. In addition, the communicating air passage 28 may be configured such that the first cleaning body chamber 18 and the first suction chamber 21 are connected to each other in tubular form.

In addition, since the first cleaning body chamber 18 and the first suction port 20 are connected to each other through the groove-shaped communication air passage 28, the type of surface to be cleaned, for example, a floor room, a tatami mat, a carpet, etc., Since the closed state of the first suction port 20 and the communication air passage 28 is different, the negative pressure is different. Therefore, the ratio of the suction amount from the 1st suction port 20 and the 2nd suction port 23 and the suction amount from the suction port 44 is variable. Therefore, in the case of the floor, the suction amount from the intake port 44 decreases, so that the rotation of each of the rotary blades 63 and 64 decreases, and in the case of the carpet, the suction amount from the intake port 44 increases, thereby increasing each suction blade. Rotation of (63) and (64) increases. For this reason, a separate floor detection means is unnecessary, and the rotation of each of the rotary blades 63 and 64 can be varied according to the floor with a simple structure, thereby further improving cleaning workability and cleaning efficiency.

In addition, since the second suction port 23 opens on the downstream side of the communication tube 32 from the communication hole 45 through which the intake air passage 43 communicates with the communication tube 32, the suction port main body 11 is lifted up. At that time, the suction resistance from the second suction port 23 is located downstream from the intake resistance from the intake port 44 to the communication hole 45 via the turbine chamber 38. For this reason, since the 2nd suction port 23 acts similarly to a leak hole, and is easily inhaled from the 2nd suction port 23, rotation of the air turbine 37 can be further reduced, and each rotation blade 63 can be safely carried out. The rotation of (64) can be reduced.

Further, the first rotating blade 63 and the second rotating blade 64 having a spiral shape in the clockwise direction are made to be rotated inward in the opposite direction in which the spiral direction is reversed, and the first rotating blade 63 is rotated. ), The first suction port 20 is opened in the spiral direction in the rotated state, and the first cleaning chamber 18 and the second cleaning chamber 19 are opposite to the first suction port 20. It connected to the communication recessed part 27 formed in the spiral direction side of the rotating blade 64 of two. For this reason, the direction suctioned by the suction force of the 1st suction port 20 and the direction guided by the textile blade part 71 and the double blade part 72 of the 1st rotating blade 63 become the same direction, The dust 90 scraped off from the surface is sucked into the first suction port 20 through the communication air path 28 smoothly by the suction force and the fabric blade portion 71 and the double blade portion 72. In addition, the dust 90 moved from the blade portion 67 of the second cleaning body chamber 19 to the direction falling from the second suction port 23 is disposed in the first cleaning body chamber via the communication recess 27. 18, it is sucked from the communication air passage 28 to the first suction port 20. For this reason, it is possible to prevent the dust 90 from remaining in each of the cleaning chambers 18 and 19 without being sucked, to improve the cleaning property, and at the same time to remove dust from the lower surface of the suction port body 11 ( The contamination by 90) can be reduced, and the frequency of maintenance management can also be reduced.

In addition, since the communication recess 27 has a recessed shape, the dust 90 is not caught and the dust 90 is removed as compared with the case in which the communication recess 28 is formed in a tubular shape or the like. Management can be made easy. The communicating recess 27 may also have a structure such that the first cleaning body chamber 18 and the second cleaning body chamber 19 are connected to each other in tubular form.

Moreover, the festival body 52 of the scroll flat type air turbine 37 which can obtain a large torque is located between the 1st cleaning chamber 18 and the 2nd cleaning chamber 19, and this shaft 52 The second bearing 49 supporting the shaft was disposed below the upper end of each of the rotary blades 63 and 64 between the first cleaning body chamber 18 and the second cleaning body chamber 19. . For this reason, the air turbine 37 is located in the state which overlaps on the 1st cleaning body chamber 18 and the 2nd cleaning body chamber 19. As shown in FIG. Therefore, although a large torque necessary for rotating the plurality of, for example, two rotary blades 63 and 64 can be obtained in order to improve the cleaning property, the driving for disposing the air turbine 37 is performed. The space in the front and rear of the direction and the space in the vertical direction for disposing the second bearing 49 serving as the bearing can be reduced, and the size can be reduced. In addition, since the air turbine 37 has a rectifying plate 54 extending toward one end side, the first bearing 47 serving as a bearing using the space on the side where the rectifying plate 54 is widened. Can be excavated, and further miniaturization can be achieved.

The first suction port 20 is opened by shifting the first suction port 20 from one end to approximately one end from the center, and communicates with the first suction chamber 21 adjacent to the second suction chamber 24 facing the communication tube 32. It formed in the upper part, and the intermediate case 39 which accommodates the air turbine 37 was arrange | positioned in the substantially center of the case body 15. As shown in FIG. For this reason, since the intake air path 34 from the 1st inlet port 20 and the intake air path 43 through the turbine chamber 38 from the inlet port 44 are not located up and down, the dimension of the up-down direction is further reduced. This can further reduce the size.

On the other hand, since the fabric blade 71 is disposed in the first rotating blade 63, the flooring effect can be obtained near the wall. In addition, since the scraping effect of the blade portion 67, which is reduced by installing the nonwoven blade portion 17, is compensated for by the double blade portion 72, the scraping in the forward and backward direction of the inlet body 11 is scraped off. The effect can be made approximately equal, and the cleaning efficiency can be further improved.

In addition, since the outer diameter of the first rotating blade positioned forward is smaller than the outer diameter of the second rotating blade, the first rotating blade can be disposed up to the foremost part of the case body. Further, the distance between the position contacting the bottom surface of the first rotating blade and the wall edge can be shortened, and the wall edge can be cleaned further.

In addition, the first rotation blade 63 and the second rotation blade 64, the second shaft 85, which crosses the second endless belt 82b inclined to the first rotation blade 63. The distance between the second rotating blade 64 side is longer than the intermediate position. In addition, the third rotation 86 which crosses the third endless belt 82c in the substantially horizontal direction to the second rotation blade 64, the first rotation blade 63 and the second rotation blade Exposed to the position where the distance to the 2nd rotation blade 64 side becomes shorter than the intermediate position between (64). For this reason, the lower surface of the first cleaning body chamber 18 and the second cleaning body chamber 19 by the rotational motion when the first rotating blade 63 and the second rotating blade 64 are removed is provided at the edges of the lower surface of the opening. The first rotating blade 63 and the second rotating blade 64 can be prevented from coming into contact with each other, making it difficult to remove the first rotating blade 63 and the second rotating blade 64. Can be detached and attached.

Further, the drive transmission means for transmitting the drive of the air turbine 37 to each of the rotary blades 63 and 64, that is, the first endless belt 82a and the drive conversion means 79, is provided in the first cleaning chamber ( 18) and the second cleaning body chamber 19 were located on the opposite side to the suction air passage 34 and isolated and disposed. For this reason, the dimension of an up-down direction can be reduced and further miniaturization can be aimed at. In addition, the first rotary blade 63 and the second rotation are separated by the second endless belt 82b and the third endless belt 82c via the drive conversion means 79 in isolation from the suction airway 34. The drive was transmitted to the end of the blade 64. Therefore, the first endless belt 82a, the drive conversion means 79, the second endless belt 82b, and the third endless belt 82c, which are the drive transmission means, are not contaminated with the sucked dust 90. Easy maintenance.

In addition, the intake air supply passage 43a for supplying the intake air flow in a spiral form to the scroll shifting air turbine 37 is connected to the first cleaning body chamber 18 located in the front of the travel direction. It was formed on the opposite side to the suction air passage 34 from the first suction port 20. For this reason, the intake air passage 34 and the intake air supply passage 43a do not overlap, and further miniaturization can be achieved.

Then, the inlet port 44 of the intake air supply passage 43a is formed in the rear portion on which the communication tube 32 leads. For this reason, the air turbine 37 can be rotated efficiently without being closed by the wall, furniture, a curtain, etc. during cleaning. In addition, the space for axially supporting the communication pipe 32 can be effectively used to supply the vortex suction airflow to the turbine chamber 38 with easy rectification, further improving the driving torque of the air turbine 37. And miniaturization can be easily achieved.

Moreover, the opening part was formed in the position which becomes the substantially vertical surface of the case body 15 in the inlet port 44. As shown in FIG. For this reason, the blockage of the intake port 44 due to the accumulation of fine dust 90 in the air on the inlet body 11 can be prevented, and the reduction of the intake efficiency can be suppressed, so that the air turbine 37 can be efficiently carried out. ) Can be rotated.

Moreover, the inlet port 44 was formed in the rear part which is the side from which the communication pipe 32 leads | releases. For this reason, the air turbine 37 can be rotated efficiently, without blocking the intake port 44 by a wall, a furniture, a curtain, etc. during cleaning. Further, by effectively utilizing a space for axially supporting the communication pipe 32, an intake air supply passage 43a for supplying the intake air stream while rectifying the vortex intake air can be formed in the turbine chamber 38, whereby the air turbine 37 The driving torque can be further improved and downsized easily.

Moreover, the opening part was formed in the position which becomes the substantially vertical surface of the case body 15 in the inlet port 44. As shown in FIG. For this reason, the blockage of the intake port 44 due to the accumulation of fine dust 90 in the air on the inlet body 11 can be prevented, and the reduction of the intake efficiency can be suppressed, so that the air turbine 37 can be efficiently carried out. ) Can be rotated.

In addition, the intake air supply passage 43a is provided with a turbine chamber 38 in order to supply the intake air flow in a spiral shape from the intake port 44 not blocked by walls, furniture, curtains, or the like to the air turbine 37 in the turbine chamber 38. In the opening in front of the s), it was formed in a trumpet shape having an interference function so as to become narrower gradually from the inlet port 44 so as to be continuously connected. For this reason, the intake air supply passage 43a in which the opening area becomes smaller gradually in the part which reaches the turbine chamber 38 by a simple structure can rectify intake airflow, and can reduce the wind noise of the air turbine 37, etc. The noise can be reduced.

Further, in the above embodiment, not only the canister type vacuum cleaner, but also the upright type in which the inlet body 11 is formed directly on the lower surface of the vacuum cleaner main body, and the vacuum cleaner main body and the inlet main body 11 are integrated. Applicable to self-propelled vacuum cleaners.

In addition, a valve body, a shutter, or the like may be provided separately so that the degree of opening in the air intake air passage 43 is continuously adjusted and the rotational speeds of the respective rotary blades 63 and 64 are variable.

As the rotary cleaning body, any of the rotary blades 63 and 64 may be used, for example, a rotary brush having a raised shape in the form of a wall, or one provided with only a nonwoven blade.

Moreover, although it demonstrated by installing two as a rotary cleaning body, the same effect can be acquired even if it installs more than that.

Although the first suction port 20 has the function of a leak port, the suction port 20 and the leak port for dust suction are separately formed.

According to the suction port of the vacuum cleaner according to the first embodiment of the present invention, since the leak port is formed between the plurality of groove-shaped cleaning body chambers that are opened downward on the lower surface of the vacuum cleaner, the leak port is formed to run when cleaning. The negative pressure in the vicinity of the leak port can be secured by the rotary cleaning body and the surface to be cleaned in the cleaning chamber located in the front and rear directions, and the air turbine freely rotated in the intake air passage is rotated by the intake air flow from the intake port. When the rotary cleaning body rotates to scrape off dust from the surface to be cleaned, and if the lower surface of the case body has fallen a predetermined distance from the surface to be cleaned, the leak opening is opened to increase the suction amount from the leak opening and reduce the amount of air intake from the inlet opening. The simple structure makes it easy to reduce the rotation of the air turbine, reducing the rotation of the rotary cleaner. Can.

According to the suction port of the vacuum cleaner according to the second embodiment of the present invention, in addition to the suction port of the vacuum cleaner according to the first embodiment, a communication air passage for connecting the cleaning chamber and the leak port is formed. The dust inside the chamber is easily sucked into the leak opening through the communication air passage, and the air passage from the leak hole to the communication pipe is also used as the dust suction air passage, which simplifies the construction and improves the cleaning efficiency easily. can do.

According to the suction port of the vacuum cleaner according to the third embodiment of the present invention, in addition to the suction port of the vacuum cleaner according to the second embodiment, the communication air passage is formed in the groove shape opening toward the lower side, Hyo-groove-shaped communication air passage forms the air passage that connects the cleaning chamber and the leak hole to the surface to be cleaned and the lower surface of the case body, so that the dust in the cleaning chamber, scraped off by the rotary cleaning body with a simple structure, intersects the groove-shaped communication air passage. Therefore, the suction port can be easily sucked without being caught in the communication path, and maintenance can be easily performed.

According to the suction port of the vacuum cleaner according to the fourth embodiment of the present invention, since the air turbine is disposed along the axial direction in the axial direction between the plurality of rotary cleaners, the air rotated by the intake air stream. Since the turbines are placed on each rotary cleaning body in the vertical direction, even if a plurality of rotary cleaning devices driven by an air turbine are installed to improve the cleaning property, the size of the front and rear of the traveling direction can be reduced, thereby making it easy to downsize. Can be.

According to the suction port of the vacuum cleaner according to the fifth embodiment of the present invention, in addition to the suction port of the vacuum cleaner according to the fourth embodiment, a bearing supporting the shaft of the air turbine is located below the upper end of the rotary cleaner. In this case, the size in the vertical direction can be reduced, and the size can be easily downsized.

According to the suction port of the vacuum cleaner according to the sixth embodiment of the present invention, in addition to the suction port of the vacuum cleaner according to the fourth or fifth embodiment, the drive transmission for transmitting the rotational drive of the air turbine to the rotary cleaner Since the means are located below the top of the rotary cleaning body, the dimensions in the vertical direction can be reduced, so that the size can be easily downsized, and the rotary drive of the air turbine is transmitted to the end of the rotary cleaning body. Therefore, the drive transmission means can be easily arranged and arranged in a simple configuration, adhesion of dust to the drive transmission means can be prevented, and maintenance management can be improved.

According to the intake port body of the vacuum cleaner according to the seventh embodiment of the present invention, the shaft body of the air turbine that rotates in the intake air flow is positioned between the plurality of rotary cleaners in the axial direction along the vertical direction. A suction air passage was formed between the cleaning chamber to connect the communicating pipe to the communication pipe, and the other side provided a driving transmission means for rotating the rotating body by transmitting the rotary drive of the air turbine to the rotary cleaning body. The turbine is positioned on the rotary cleaning body in the vertical direction, and the suction air passage and the drive transmission means do not overlap in the vertical direction, and the dimensions in the front and rear directions and the vertical direction can be reduced so that the turbine can be easily downsized. The drive transmission means can be easily isolated and arranged in a simple configuration and can prevent dust from adhering to the drive transmission means. It can improve the maintenance property.

According to the suction inlet of the vacuum cleaner according to the eighth embodiment of the present invention, the shaft of the air turbine is positioned between the plurality of rotary cleaners in the axial direction along the vertical direction, and the air turbine is located in the forward direction in one direction with respect to the air turbine. Since the intake air passage for connecting the communication pipe from the cleaning chamber to the communication pipe is formed and the intake air supply air for supplying the intake air flow to the turbine chamber accommodating the air turbine on the other side, the air turbine is installed in each of the rotary cleaning bodies in the up and down direction. At the same time, the suction air passage and the intake air supply passage do not overlap in the vertical direction, and the dimensions in the front-back direction and the vertical direction can be reduced, and can be easily downsized.

According to the vacuum cleaner according to the ninth embodiment of the present invention, the rotation of the rotary cleaner is reduced even when the member for opening and closing the leak port is not necessary and is lifted with a simple structure. Moreover, since the suction inlet body of any one of the 1st-8th embodiment which cleansing efficiency improves even if it uses a small size and an air turbine is provided, cleaning property can be improved.

Claims (10)

A groove-shaped cleaning chamber located in the front and rear direction of the driving direction on the lower surface opposite to the surface to be cleaned, which is provided in a recessed shape and opened downward, and a leak opening on the lower surface between the cleaning chambers and the leak opening separately. A case body having an open air inlet, A communicating tube installed in the case body and communicating with the leak port and communicating with the intake port via an intake air passage; A rotary cleaning body in which rotation is freely disposed in each of the cleaning chambers of the case body; And an air turbine freely installed in the intake air passage and configured to rotate and drive the rotary cleaner by the intake air flow. The suction inlet body of an electric vacuum cleaner according to claim 1, wherein the case body has a communication air passage communicating between the cleaning chamber and the leak port. The suction inlet of the vacuum cleaner according to claim 2, wherein the communication air passage has a groove shape which opens downward. A housing body having a groove-shaped cleaning body located in the front-rear direction of the driving direction on the lower surface opposite to the surface to be cleaned and opened downward, and a case body having an air intake opening separately from these cleaning body chambers; A communicating tube installed in the case body and communicating with the cleaning chamber chamber and communicating with the intake vent via an intake air passage; A rotary cleaning body in which rotation is freely disposed in each of the cleaning chambers of the case body; Suction of the electric vacuum cleaner characterized in that it is provided with a rotation turbine is freely installed in the intake air passage by the shaft located between the cleaning chamber chambers along the up and down direction, and to rotate the rotating cleaning body by the intake air flow. sphere. The suction inlet of the vacuum cleaner according to claim 4, wherein the shaft is supported by a bearing disposed between the cleaning chambers and disposed below the upper end of the rotary cleaner. 6. A drive transmission means for transmitting a rotational drive of an air turbine to an end of a rotary cleaning body is disposed between the cleaning chambers and positioned below the upper end of the rotary cleaning body. Inlet of vacuum cleaner. A housing body having a groove-shaped cleaning body located in the front-rear direction of the driving direction on the lower surface opposite to the surface to be cleaned and opened downward, and a case body having an air intake opening separately from these cleaning body chambers; A communication tube installed in the case body and communicating with the suction chamber via an intake air passage, and communicating with the intake air via an intake air passage; A rotary cleaning body in which rotation is freely disposed in each of the cleaning chambers of the case body; An air turbine freely installed in the intake air passage by an shaft disposed between the cleaning chambers in an axial direction along an up-down direction, and for rotating the rotating cleaning body by intake air; It is provided between the cleaning chamber and the air turbine is located on the opposite side to the intake air passage, and the drive transmission means for transmitting the rotary drive of the air turbine to the rotary cleaning body to drive the rotary cleaning body Inlet of vacuum cleaner. A housing body having a groove-shaped cleaning body located in the front and rear direction of the traveling direction on the lower surface opposite to the surface to be cleaned and opened thereafter; and a case body having an air intake opening separately from these cleaning body chambers; A communicating tube installed in the case body and communicating with the cleaning chamber through the intake air passage, and communicating with the intake air via the intake air passage; A rotary cleaning body in which rotation is freely disposed in each of the cleaning chambers of the case body; A turbine chamber is provided between the cleaning chambers, the shaft being positioned freely in the intake air passage by the shaft located along the up and down direction, and containing the air turbine for rotating the rotating cleaning body by the intake air flow. The intake air flow passage, wherein the intake air supply passage for supplying the intake air flow to the turbine chamber on the opposite side to the intake air passage with respect to the air turbine. The suction port of the vacuum cleaner according to any one of claims 1, 2, 3, 4, 5, 7, 8, And a vacuum cleaner main body to which the suction port of the vacuum cleaner is connected. The suction port of the vacuum cleaner according to claim 6, And a vacuum cleaner main body to which the suction port of the vacuum cleaner is connected.

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