KR100282221B1 - Floor suction device - Google Patents

Abstract

The present invention relates to a floor suction mechanism that can drive the rotary brush more efficiently with a simple configuration. The floor suction mechanism has a guide 20 for taking outside air into the rotary brush storage chamber 8 at the front of the suction mechanism main body 1, and at the same time, the outside air sucked from the guide 20 is rotated by a rotary brush ( Guides 21 and 22 leading to the blades 15 and 16 of 11 are formed in the front part of the suction device main body 1.

Description

Floor suction device

The present invention relates to an improvement of a floor suction mechanism used in connection with an electric vacuum cleaner.

Conventionally, as this type of suction device for floors, it is known that the rotating brush is rotatably supported on the suction device main body, and the rotating brush is driven to rotate by an electric motor or a turbine, but the rotating brush is rotated by an electric motor. In driving, the weight of the electric motor was heavy, the suctionability during the cleaning operation was poor, the number of parts was increased, the assembly workability was poor, and there was a disadvantage that it was expensive.

In addition, in the case where the rotary brush is driven to rotate by the turbine, the turbine is disposed in the turbine chamber formed in the suction passage from the suction port to the cleaner main body, and is configured to rotate by the air sucked together with the garbage. By doing so, there is a problem that garbage accumulates in the turbine and the turbine does not rotate well.

Thus, in order to solve the above drawback, as disclosed in Japanese Patent Application Laid-open No. Hei 9-28630 (A47L 9/04) and the like, a turbine is disposed at both ends of a rotary brush, and the turbine is supplied with clean air of outside air to the turbine. It is proposed that this rotation is carried out and that the air is drawn into the vacuum cleaner together with the air taken in from the intake port.

However, in such a configuration, since the turbines are arranged on both sides of the rotary brush, the number of parts is increased and the deterioration of the waste suction characteristics is suppressed, so that the turbine needs to be rotated more efficiently by the outside air. There was a problem that the shape is complicated. In addition, the inlet can not be formed in the lower surface of the turbine storage chamber, the suction port is small with respect to the horizontal width of the suction mechanism main body, there is a problem that the suction residue such as garbage is generated.

The present invention has been made in view of the above-described drawbacks, and provides a floor suction mechanism capable of efficiently driving a rotating brush with a simple configuration.

1 is a cross-sectional view of the floor suction mechanism showing an embodiment of the present invention.

Fig. 2 is a sectional view of the floor suction mechanism shown in Fig. 1 as seen from another direction.

Figure 3 is a front view of the floor suction mechanism shown in FIG.

Figure 4 is a top view of the floor suction mechanism shown in FIG.

Figure 5 is a side view of the floor suction mechanism shown in FIG.

6 is a cross-sectional view of the stationary state of the rotary brush of the floor suction mechanism shown in FIG.

7 is a cross-sectional view of the rotating state of the rotary brush of the floor suction mechanism shown in FIG.

8 is a top view showing a suction device for a floor of a second embodiment of the present invention.

9 is a cross-sectional view of the floor suction mechanism shown in FIG.

Fig. 10 is a sectional view of the central portion in the longitudinal direction of the suction mechanism main body of the floor suction mechanism shown in Fig. 8 viewed from another direction;

FIG. 11 is a sectional view of another part of the floor suction mechanism shown in FIG. 8; FIG.

Figure 12 is a side view of the floor suction mechanism shown in Figure 8;

<Explanation of symbols of main part of drawing>

1,31: suction mechanism body 8: rotary brush storage chamber

11: rotary brush 15,47: first blade

16: 2nd blade 20, 45: guide

21: 1st rib (guider) 22: 2nd rib (guider)

42: guide

The suction device for a floor according to claim 1 of the present invention has a suction device main body having a suction port on a lower surface thereof, a rotary brush storage chamber formed in the suction device main body, and rotates in the rotary brush storage room facing the suction port. A rotary brush received and disposed on the outer circumference of the blade; A guide port for guiding outside air toward the blade is formed in the front portion of the rotary brush storage chamber.

The suction device for a floor according to claim 2 of the present invention includes a suction device body having a suction port on a lower surface thereof, a rotation brush storage chamber formed in the suction device body, and a rotary brush storage room facing the suction hole. A rotary brush received and disposed on the outer circumference of the blade; Guides and guiders for guiding outside air sucked from the guides to the blade located below the rotation center of the rotary brush are formed in the front portion of the rotary brush storage chamber.

The floor suction device according to claim 3 of the present invention includes a suction device body having a suction port on a lower surface thereof, a rotary brush storage chamber formed in the suction device body, and a rotary brush storage room facing the suction port. A rotary brush received and disposed on the outer circumference of the blade; Guides and guiders for guiding the outside air sucked from the guides to a blade located below the rotation center of the rotary brush are formed in the front portion of the rotary brush storage chamber, and the guiders are formed in the tangential direction of the rotation trajectory of the rotary brush. It is characterized by being formed.

The floor suction device according to claim 4 of the present invention includes a suction device main body having a suction port on a lower surface thereof, a rotary brush storage chamber formed in the suction device main body, and accommodated so as to be rotated in the rotary brush storage room facing the suction port. And a rotating brush disposed on the outer circumference thereof; Guides are formed in the front portion of the rotary brush storage chamber, guiders for guiding outside air drawn from the guides to a blade located below the rotation center of the rotary brush are formed in the lower portion of the guide, and between the guiders The spacing is characterized by gradually narrowing as it approaches the rotating brush.

The floor suction device according to claim 5 of the present invention includes a suction device main body having a suction port on a lower surface thereof, a rotary brush storage chamber formed in the suction device main body, and accommodated so as to be rotated in the rotary brush storage room facing the suction port. And a rotating brush disposed on the outer circumference thereof; A guide is formed in the front upper portion of the rotary brush storage chamber, and a guide portion for guiding outside air drawn from the guide to a blade located below the rotation center of the rotary brush is formed under the guide. do.

The floor suction device according to claim 6 of the present invention includes a suction device main body having a suction port on a lower surface thereof, a rotary brush storage chamber formed in the suction device main body, and a rotary brush storage room facing the suction port so as to be rotated. And a rotating brush disposed on the outer circumference thereof; Guides are formed in the front upper part of the rotary brush storage chamber, and guiders for guiding the outside air sucked from the guides downward are formed at the rear of the guide, and guided air is guided to the lower part of the guider. The guide portion for guiding the blade located below the center of rotation of the rotary brush is characterized in that formed in the lower portion of the guider.

A first embodiment of the present invention will be described with reference to FIGS. 1 to 7.

In the drawings, reference numeral 1 denotes a suction device main body, and the suction device main body 1 is a cover detachably coupled to the upper case 2, the lower case 3, the upper case 2 and the lower case 3 ( 4), a rotating tube 5 rotatably supported in the vertical direction between the upper and lower cases 2, 3, and a connecting tube 6 rotatably supported by the rotating tube 5. The suction device main body 1 is formed in a circular cross-sectional shape, so that when the suction device main body 1 moves back and forth during cleaning, the angled portion of the suction device main body 1 is lower than that of the conventional rectangular suction device main body. It is possible to improve mobility without being caught on a surface or the like.

Reference numeral 7 denotes a suction port formed in the bottom surface of the suction mechanism main body 1, and reference numeral 8 denotes a rotary brush storage chamber formed in the suction mechanism main body 1.

Reference numeral 9 shown in FIG. 2 is an axial support part formed on both sides of the suction mechanism main body 1, and the wheel 25 is rotatably supported. In addition, reference numeral 10 denotes a partition rib which extends downward from the upper and lower cases 2 and 3 of the suction device main body 1, and partitions the shaft support 9 and the rotary brush storage chamber 8. The suction through the shaft support part 9 to the rotary brush storage chamber 8 is prevented.

Reference numeral 11 denotes a rotary brush which is rotatably housed in the rotary brush storage chamber 8 with the inlet 7 directed, and the rotary brush 11 as shown in detail in FIGS. 6 and 7. 12 and a pair of first blades 15 composed of a brush body in which the base portion 14 is inserted into and mounted in the spiral groove 13 formed in the shaft body 12, and the shaft body 12 It consists of a pair of 2nd blades 16 in which the base part 18 is inserted and mounted in the spiral groove 13.

The second blade 16 has a foam 17, a base portion 18 composed of a synthetic resin molded at the end of the foam 17, and a bristle 19 attached to the edge of the foam 17. The base portion 18 is formed on the foam 17 to deform the end of the foam 17 so that the bristle 19 is attached to the edge of the foam 17. The bent body 17 is bent so that it may be bent. This second blade 16 is mounted to the shaft core 12 so as to bend to the rear side with respect to the rotation direction of the rotary brush 11.

The second blade 16 bends backwards with respect to the rotational direction of the rotary brush 11 in the rotational stop state and the low-speed rotational state of the rotary brush 11, but the rotary brush 11 is rotated at high speed. When rotated as shown in FIG. 7, the diameter of the rotational trajectory in the unfolded state is larger than the diameter of the rotational trajectory of the first blade 15. In addition, in the stationary state of the rotary brush 11, even if the suction device main body 1 is located on the bottom surface, the first and second blades 15, 16 are formed so as not to contact the bottom surface.

In the figure, reference numeral 20 denotes a guide formed in the front portion of the lower case 3, and the guide 20 is formed in almost the entire width of the first blade 15 and the second blade 16 of the rotary brush 20. It is formed so as to guide the outside air from the guide 20 to the 1st blade 15 and the 2nd blade 16 of the rotating brush 11, and to drive the rotating brush 11.

As an intake air for guiding the outside air for driving the rotary brush 11 to the rotary brush storage chamber 8, the air intake is taken in the state in which the front lower part of the lower case 3 of the suction mechanism main body 1 is cut out. Although the configuration is also considered, in this configuration, when cleaning the blanket of fur length, the incision portion of the lower case 3 is closed by the blanket so that no outside air can be taken, and the rotary brush 11 is driven to rotate. Unable problem occurs.

Therefore, as in this embodiment, the guide 20 can be pressed into the blanket because the guide 20 can be pressed against the bottom of the lower case 3 by forming the guide 20 at the front of the lower case 3. Without sealing it is not possible to secure the entrance to take the outside air.

Reference numeral 21 is a function of the guider formed at the upper edge of the guide 20 to guide the outside air drawn from the guide 20 to the first blade 15 and the second blade 16 of the rotary brush 11. Is the first rib. The first rib 21 extends in the tangential direction of the rotational trajectory of the first blade 15 and the second blade 16 from the front part toward the edge of the inlet 7 of the lower case 3 from the front part. The tip thereof extends to the rotation center position (upward position) of the rotary brush 11 rather than the lowest position of the rotation trajectory of the second blade 16 and is located within the influence range of the rotation trajectory.

Reference numeral 22 is a second rib that forms the front edge of the inlet 7 of the lower case 3 and functions as a guider. The tip of the first rib 21 is opposed to the second rib 22 so as to face each other. A discharge port 24 is formed between the tip of the first rib 21 and the second rib 22. The intake passage 23 is formed so as to gradually become narrower from the guide port 20 toward the discharge port 24.

The front wheel 25 is mounted to the shaft support 9 as described above, and is formed with a diameter approximately equal to the outer diameter of the suction mechanism main body 1. The rear wheels 26 are formed to have a small diameter and are supported on the rear portion of the suction device main body 1 and are positioned on an almost extended line of the axis of the connecting pipe 6 connected to the suction device main body 1.

That is, the rear wheel 26 is provided at the position where the force is most applied when the suction mechanism main body 1 moves forward and backward at the time of cleaning, and the side surface of the suction mechanism main body 1 in front of the rear wheel 26. The front wheel 25 having a large diameter (approximately the same diameter as the suction device main body 1) is provided in the rear wheel 26 when changing the direction from side to side while pressing the suction device main body 1 forward during cleaning. Since the front wheels 25 are driven back and forth, respectively, as the support point, the suction mechanism main body 1 can be rotated in a small space, and the swingability of the suction mechanism main body 1 is improved.

Reference numeral 27 denotes a suction keeper disposed before and after the suction port 7, and is formed of a material having flexibility such as soft rubber, and the suction force is improved by the suction keeper 27.

Then, the connecting pipe 6 is connected to the cleaner main body via a flexible hose and an extension tube, and when the electric blower of the cleaner main body is driven, air is sucked in from the suction port 7. Since the suction resistance from the suction port 7 is small in the state where the suction mechanism main body 1 is lifted from the surface to be cleaned, most of the air is sucked from the suction port 7. In this state, since the inlet 7 becomes a large opening, the flow rate of the air sucked from the inlet 7 is relatively slow, and therefore, the rotary brush 11 is hardly rotated.

When cleaning the floor, mat, etc., such as a floor, since the clearance surface and the suction port 7 are comparatively wide, the suction resistance from the suction port 7 becomes small, and most air is sucked in from the suction port 7 and guides. It is hardly sucked from the sphere 20. In this state, since the air sucked between the inlet 7 and the surface to be cleaned has a high flow rate, the air drawn from the inlet 7 is transferred to the first blade 15 and the second blade 16 of the rotary brush 11. Impinge on, the rotary brush 11 is rotated clockwise in FIG. 1.

Since the second blade 16 is bent to the rear side with respect to the rotational direction of the rotational brush 11 as shown in FIG. 6 in the rotational stop state or the low-speed rotational state of the rotational brush 11, the second blade 16 is sucked from the suction port 7. Receiving air, the rotary brush 11 is rotated more efficiently.

When the rotary brush 11 is rotated at a high speed, the second blade 16 is unfolded as shown in FIG. 7 by centrifugal force. In the unfolded state of such a second blade 16, the second blade 16 is in contact with the bottom surface or mat, and is cleaned by scrubbing. Since the flexible member 17 which is easy to bend is used for the 2nd blade 16, it does not damage a floor surface or a mat.

When cleaning the surface to be cleaned such as a blanket, the suction port 7 is sealed by the surface to be cleaned, the air resistance from the suction port 7 increases, and the amount of outside air sucked from the guide port 20 increases. Since the discharge port 24 is formed with a smaller opening area than the suction port 7, the air sucked from the discharge port 24 is the first blade 15 and the second blade 16 of the rotary brush 11 at a high flow rate ), The rotary brush 11 is rotated clockwise.

The guide port 20 is formed in the front part of the rotary brush storage chamber 8 of the suction mechanism main body 1, so that the flow of outside air drawn in from the guide port 20 and sucked into the rotating tube 5 is smooth. Thus, the loss of the flow velocity of the outside air is reduced, and the rotational efficiency of the rotary brush is not lowered.

Since the front end of the first rib 21 extends to the center of rotation (upward position) of the rotary brush 11 rather than the lowest position of the rotational trajectory of the second blade 16, it is located within the influence range of the rotational trajectory, The outside air sucked from the discharge port 24 can be reliably guided to the first blade 15 or the second blade 16, and the rotary brush 11 can be driven to rotate more efficiently.

Outside air sucked from the guide hole 20 is guided to the first blade 15 and the second blade 16 below the center of rotation of the rotary brush 11 and passes through the surface to be cleaned to be sucked by the rotary tube 5. Therefore, garbage on the surface to be cleaned can be collected more effectively.

In addition, since the first rib 21 is formed to be inclined in the tangential direction of the rotational trajectories of the first blade 15 and the second blade 16, the outside air is more effectively the first blade 15 and the second blade 16. ), It is possible to improve the rotational efficiency of the rotary brush (11).

Since the air intake passage 23 for guiding the outside air from the guide port 20 to the discharge port 24 is configured to gradually narrow toward the discharge port 24, the generation of noise due to the change in the area of the air passage is reduced at the same time. The flow rate of the outside air colliding with the first blade 15 and the second blade 16 from the discharge port 24 is increased, so that the rotational efficiency of the rotary brush 11 can be improved.

Further, by sucking air from the guide 20, the attachment of the suction mechanism main body 1 to the surface to be cleaned can be suppressed, and the mobility of the suction mechanism main body 1 can be improved.

When cleaning the blanket or the like, when the surface to be cleaned becomes a resistor and the rotation speed of the rotary brush 11 is lowered or the rotation speed of the rotary brush 11 is lowered, the second blade 16 stops next in accordance with the decrease in the centrifugal force. It is bent to the rear side with respect to the rotational direction so as to restore to the shape of the city, the contact resistance with the surface to be cleaned is lowered and the rotation speed is increased. By repeating this operation, the rotation speed of the rotary brush 11 is kept substantially constant.

Since the second blade 16 is formed by attaching the bristle body 19 to the foam body 17, the second blade 16 can be easily configured to bend, and the bristle body 19 is centered. The second blade 16 can be easily unfolded by the centrifugal force, the second blade 16 can be unfolded or bent due to slight rotational fluctuations of the rotary brush 11, and The rotation speed can be kept almost constant.

A second embodiment of the present invention will now be described in detail with reference to Figs. Moreover, the same parts as in the first embodiment are given the same reference numerals and the description is omitted.

Reference numeral 31 is a suction mechanism body, the suction mechanism body 31 is a cover 34 detachably coupled to the upper case 32, lower case 33, upper case 32 and lower case 33, Rotating tube 37 composed of upper and lower members 35 and 36 rotatably supported between upper and lower cases 32 and 33, and vertically movable to upper and lower members 35 and 36 of rotating tube 37. It consists of a connecting tube 38 fitted.

The upper member 35 of the rotating tube 37 has a sliding member 39 which is slidable relative to the upper member 35 as shown in FIG. 10, and at the same time, an engaging nail portion formed at an end of the sliding member 39 ( 40 is coupled to the blade-shaped groove 41 formed on the outer periphery of the opening end of the connecting pipe 38, and when the connecting pipe 38 is rotated upward with respect to the suction mechanism main body 31, the sliding member 39 is It is accommodated in the upper member 35 of the rotation pipe 37, and the connection pipe 38 is made to be able to rotate to about 90 degrees with respect to the suction mechanism main body 31. As shown in FIG.

Reference numeral 42 is a curved guide portion formed at the front end of the suction port 7 of the lower case 33, and outside air drawn from the guide hole 45 collides with the guide portion 42 and guides it to the rotating brush 11 side. To be possible. A small front wheel 43 is provided on the lower surface of the guide portion 42.

Reference numeral 44 denotes a protruding opening communicating with the suction port 7 on both front ends of the lower case 33, extending the suction port 7 to the front wheel 43 as shown in FIG. 9, and the front wheel 43. The suction port is formed over the entire width of the suction mechanism main body 31 provided with) to improve the cleaning efficiency.

The guide 45 is formed in front of the cover 34 and is formed at positions corresponding to both sides of the rotary brush 11. The guide ribs 46 are formed to vertically descend to the rear side of the guide hole 45 of the cover 34 as shown in FIG. 11, and the outside air drawn from the guide hole 45 toward the guide part 42. The lower end of the guide rib 46 extends to the rotational center position of the rotary brush 11 or to a position lower than the rotational center.

The rotary brush 11 has a first blade 47 formed of rubber or the like in a shape bent toward the rear side in the rotational direction, and a pair of second blades 16 as in the first embodiment.

The inlet 48 is formed at a position corresponding to the protruding opening 44 in front of the cover 34, and the garbage located in front of the front wheel 43 by the air sucked from the inlet 48 is inlet 7. It is guided to and can be inhaled.

Reference numeral 49 denotes an extension part protruding from an approximately center portion of the rear of the lower case 33, and the rear wheel 50 is rotatably supported by the extension part 49. The lower part of the connecting portion of the rotating tube 37 and the connecting tube 38, which is most applied to the suction mechanism main body 31 during cleaning, is supported by the rear wheel 50 and sucked by the extension 49. The front portion of the instrument body 31 is prevented from being lifted, so that the balance can be maintained well.

Reference numeral 51 denotes a broom member disposed on the lower surface of the extension 49, and when the suction device main body 31 is moved in the front-rear direction, the bottom surface may be cleaned by the broom member 51.

Reference numeral 52 is a bumper which is disposed in a state supported by the upper and lower cases 32 and 33 on the front portion of the suction mechanism main body 31, and is formed of a material having flexibility such as rubber, and becomes a suction keeper. The flap 53 is integrally molded, and the suction force can be improved by the suction keeper 54 disposed behind the flap 53 and the suction port 7. A plurality of protrusions 55 are formed on the inner surface of the flap 53 of the bumper 52, and when the suction mechanism main body 31 is pulled to the handle side during cleaning, the threads of the surface to be cleaned such as a blanket or the like by the protrusions 55 are cleaned. Can be pulled out and sucked reliably.

Then, the connecting pipe 38 is connected to the cleaner body via a flexible hose and an extension tube, and when the electric blower of the cleaner body is driven, air is sucked in from the suction port 7. In the state where the suction mechanism main body 31 is lifted from the surface to be cleaned, most of the air is sucked from the suction port 7 because the suction resistance from the suction port 7 is small. In this state, since the inlet 7 is largely opened, the flow rate of the air sucked from the inlet 7 is relatively slow, so that the rotary brush 11 is hardly rotated.

When cleaning the floor and the mat such as the floor, the cleaning surface and the suction port 7 are relatively wide, so that the suction resistance from the suction port 7 is small, and most of the air is sucked from the suction port 7 and guided. Very little suction from the sphere 45 and the inlet 48 is made. In this state, since the air sucked in between the suction port 7 and the surface to be cleaned has a high flow rate, the air sucked from the suction port 7 collides with the blades 16 and 47 of the rotary brush 11 to rotate the brush. (11) is rotated counterclockwise in FIG.

When cleaning the surface to be cleaned, such as a blanket, the inlet 7 is covered by the surface to be cleaned, the intake resistance from the inlet 7 increases, and the outside air sucked from the guide 45 and the inlet 48 increases. . Since the guide port 45 is formed with an extremely small opening area compared with the intake port 7, air sucked from the guide port 45 collides with the guide part 43 of the lower case 33 at a high speed. In the guide part 42, the flow direction of the outside air is changed to collide with the blades 16 and 47 of the rotary brush 11 so that the rotary brush 11 is rotated counterclockwise in FIG. 11.

Air introduced from the guide port 45 is sucked toward the lower side of the suction mechanism main body 31, the direction is changed from the guide part 42 to the rotary brush 11 side, and the shaft center body 12 of the rotary brush 11 is rotated. The rotating brush 11 can be reliably rotated by colliding with the blades 16 and 47 positioned on the lower side of the blade and preventing the blades 16 and 47 from being caught by the blanket when cleaning the blanket of the fur length. .

In addition, since the inlet opening 48 is formed to have an extremely small opening area compared to the inlet opening 7, similarly to the guide opening 45, the air drawn from the inlet opening 48 flows in front of the front wheel 43 at a high flow rate. The suction opening 44 is introduced into the protruding opening 44 corresponding to the front portion of the front wheel 43, and when the suction is carried out through the suction port 7 to wind up the garbage at a position corresponding to the front of the front wheel 43, Since garbage can be sucked in, waste residue can be made extremely small.

The guide rib 46 extends below the tip thereof below the rotation center position or the rotation center position of the rotary brush 11, and the air drawn from the guide 45 passes directly above the rotary brush 11. It is possible to reliably guide the guide part 42 by preventing suction by the rotational pipe 38, and the rotary brush 11 can be driven to rotate more efficiently.

Since two guides 45 are formed at positions corresponding to both sides of the rotary brush 11, the waste removal efficiency of both sides having the weakest suction force can be improved, and at the same time, the blades 16 of the rotary brush 11 can be improved. 47 is twisted approximately 90 degrees between both ends, and the rotary brush 11 can be smoothly rotated because the outside air collides with the two blades 16 and 47 at all times.

According to the structure of claim 1, the rotary brush rotates more efficiently even when cleaning a blanket or the like by guiding outside air from the guide port to the blade of the rotary brush without installing a turbine for driving the rotary brush. Can be driven.

In addition, the guide is formed in front of the rotary brush storage chamber of the suction mechanism body, the flow path of the outside air taken out of the guide and sucked into the cleaner body is linear, so that the flow of the outside air is smooth, thereby reducing the loss of flow rate. In addition, there is an effect that the driving force of the rotary brush can be sufficiently obtained by using the outside air more efficiently.

According to the second aspect of the present invention, the rotary brush is more efficiently used when cleaning a blanket or the like by guiding outside air from the guide port to the blade of the rotary brush without providing a turbine for driving the rotary brush. The rotational efficiency of the rotating brush can be further improved by being provided with a guider which can be driven to rotate and guide the outside air from the guide to the blade.

In addition, since the guide is formed in front of the rotary brush storage chamber of the suction mechanism main body, the flow path of the outside air taken out of the guide and sucked into the cleaner main body becomes linear to smooth the flow of the outside air, thereby reducing the loss of the flow rate. In addition, there is an effect that the driving force of the rotary brush can be sufficiently obtained by using the outside air more efficiently.

According to the third aspect of the present invention, the rotary brush rotates more efficiently even when cleaning a blanket or the like by guiding outside air from the guide port to the blade of the rotary brush without providing a turbine for driving the rotary brush. At the same time, a guider for guiding the outside air from the guide to the blade is provided, and the guider is formed in the tangential direction of the rotational trajectory of the rotary brush, whereby the rotational efficiency of the rotary brush can be further improved.

In addition, since the guide is formed in front of the rotary brush storage chamber of the suction mechanism main body, the flow of the outside air taken from the guide and sucked into the cleaner body is linear, so that the flow of the outside air is smooth and the loss of the flow rate can be reduced. In addition, there is an effect that the driving force of the rotary brush can be sufficiently obtained by using the outside air more efficiently.

According to the configuration of claim 4, the rotary brush rotates more efficiently even when cleaning a blanket or the like by guiding outside air from the guide to the blade of the rotary brush without installing a turbine for driving the rotary brush. At the same time, the rotational efficiency of the rotary brush can be further improved by installing a guider for guiding outside air from the guide to the blade.

In addition, since the guide is formed in front of the rotary brush storage chamber of the suction mechanism main body, the flow of the outside air taken from the guide and sucked into the cleaner body is linear, so that the flow of the outside air is smooth and the loss of the flow rate can be reduced. In addition, there is an effect that the driving force of the rotary brush can be sufficiently obtained by using the outside air more efficiently.

Moreover, as the guider is formed in a narrower width as the guider approaches the rotary brush, the generation of noise due to the change of the flow path area is reduced, and the flow velocity of the outside air is increased, so that the rotational efficiency of the rotary brush can be further improved. have.

According to the configuration of claim 5 of the present invention, the rotary brush rotates more efficiently even when cleaning a blanket or the like by guiding outside air from the guide port to the blade of the rotary brush without installing a turbine for driving the rotary brush. At the same time, the rotational efficiency of the rotary brush can be further improved by providing a guide for guiding outside air from the guide to the blade.

In addition, since the guide is formed in front of the rotary brush storage chamber of the suction mechanism main body, the flow of the outside air taken from the guide and sucked into the cleaner body is linear, so that the flow of the outside air is smooth and the loss of the flow rate can be reduced. In addition, there is an effect that the driving force of the rotary brush can be sufficiently obtained by using the outside air more efficiently.

According to the sixth aspect of the present invention, the rotary brush rotates more efficiently even when cleaning a blanket or the like by guiding outside air from the guide port to the blade of the rotary brush without installing a turbine for driving the rotary brush. At the same time, the rotational efficiency of the rotary brush can be further improved by providing a guide for guiding outside air from the guide to the blade.

In addition, since the guide is formed in front of the rotary brush storage chamber of the suction mechanism main body, the flow of the outside air taken from the guide and sucked into the cleaner body is linear, so that the flow of the outside air is smooth and the loss of the flow rate can be reduced. In addition, there is an effect that the driving force of the rotary brush can be sufficiently obtained by using the outside air more efficiently.

Claims (6)

A suction device main body having a suction port on a lower surface thereof, a rotary brush storage chamber formed in the suction device main body, and a rotary brush housed so as to be rotated in the rotary brush storage room facing the suction port, and having blades disposed on an outer circumference thereof; ; A guide for guiding outside air toward the blade is formed in the front portion of the rotary brush storage chamber, floor intake mechanism. A suction device main body having a suction port on a lower surface thereof, a rotary brush storage chamber formed in the suction device main body, and a rotary brush housed so as to be rotated in the rotary brush storage room facing the suction port, and having blades disposed on an outer circumference thereof; ; Guides and guiders for guiding outside air sucked from the guides to a blade located below the rotation center of the rotary brush are formed in the front portion of the rotary brush storage chamber. A suction device main body having a suction port on a lower surface thereof, a rotary brush storage chamber formed in the suction device main body, and a rotary brush housed so as to be rotated in the rotary brush storage room facing the suction port, and having blades disposed on an outer circumference thereof; ; Guides and guiders for guiding the outside air sucked from the guides to a blade located below the rotation center of the rotary brush are formed in the front portion of the rotary brush storage chamber, and the guiders are formed in the tangential direction of the rotation trajectory of the rotary brush. Floor suction device, characterized in that formed. A suction device main body having a suction port on a lower surface thereof, a rotary brush storage chamber formed in the suction device main body, and a rotary brush housed so as to be rotated in the rotary brush storage room facing the suction port, and having blades disposed on an outer circumference thereof; Guides are formed in the front portion of the rotary brush storage chamber, guiders for guiding outside air drawn from the guides to a blade located below the rotation center of the rotary brush are formed in the lower portion of the guide, and between the guiders A floor suction device, characterized in that the gap gradually narrows as it approaches the rotary brush. A suction device main body having a suction port on a lower surface thereof, a rotary brush storage chamber formed in the suction device main body, and a rotary brush housed so as to be rotated in the rotary brush storage room facing the suction port, and having blades disposed on an outer circumference thereof; A guide is formed in the front upper portion of the rotary brush storage chamber, and a guide portion for guiding outside air drawn from the guide to a blade located below the rotation center of the rotary brush is formed under the guide. Floor suction device. A suction device main body having a suction port on a lower surface thereof, a rotary brush storage chamber formed in the suction device main body, and a rotary brush housed so as to be rotated in the rotary brush storage room facing the suction port, and having blades disposed on an outer circumference thereof; Guides are formed in the front upper part of the rotary brush storage chamber, and guiders for guiding the outside air sucked from the guides downward are formed at the rear of the guide, and guided air is guided to the lower part of the guider. The guide portion for guiding the blade located below the center of rotation of the rotary brush is formed in the lower portion of the guider.