JPH11267073A - Suction tool for floor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To drive a rotary brush efficiently in a simple constitution by rotatably storing a rotary brush having a blade disposed on the outer periphery in the state of facing to a suction port in a rotary brush storing chamber, and forming a guide port for guiding the outside air toward the blade in front and in rear of the rotary brush storing chamber. SOLUTION: In sucking air from a suction port 7 to clean a flooring or the like, as a suction resistance from the suction port 7 is small, most of air is sucked from the suction port 7. The sucked air collides with a first and a second blades 15 and 16 of a rotary brush 11 to rotate the rotary brush 11 clockwise, thereby cleaning the flooring. On the other hand, in cleaning the surface to be cleaned of a carpet or the like, as the intake resistance from the suction port 7 is increased, the amount of outside air sucked from a guide port 20 is increased. At this time, air sucked from a discharge port 24 having a smaller open area than that of the suction port 7 collides at high flow velocity with the first and the second blades 15 and 16 of the rotary brush 11 to similarly rotate the rotary brush 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a floor suction tool used in connection with a vacuum cleaner.

[0002]

2. Description of the Related Art Conventionally, as this type of floor suction device, there has been known a floor suction device in which a rotary brush is rotatably supported on a suction device body and the rotary brush is rotationally driven by an electric motor or a turbine. Is rotated by an electric motor, the motor has a heavy weight, is difficult to handle during a cleaning operation, has an increased number of parts, has poor assembly workability, and has disadvantages such as being expensive.

In a rotary brush driven by a turbine, the turbine is disposed in a turbine chamber formed in a suction passage from a suction port to a cleaner body.
Due to the configuration of rotating by the air sucked together with the dust, there is a problem that dust is clogged in the turbine due to long-term use, and the turbine does not rotate well.

Therefore, in order to solve the above-mentioned drawbacks, as disclosed in Japanese Patent Application Laid-Open No. 9-28630 (A47L 9/04) and the like,
A turbine has been proposed in which a turbine is provided at both ends of a rotating brush, clean air is supplied to the turbine to rotate the turbine, and the air is sucked into a vacuum cleaner together with the air sucked in from a suction port.

However, in this configuration, since the turbines are provided on both sides of the rotating brush, the number of parts increases, and it is necessary to efficiently rotate the turbine with a small amount of outside air in order to suppress a reduction in dust suction characteristics. There is a problem that the turbine shape is complicated. Also, an intake port cannot be formed on the lower surface of the turbine storage chamber,
There is a drawback that the suction port becomes smaller than the width of the suction tool main body, so that dust and the like are left unsucked.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks, and has as its object to provide a floor suction tool capable of efficiently driving a rotary brush with a simple structure.

[0007]

A first means of the present invention is as follows.
A suction tool main body having a suction port on the lower surface, a rotating brush storage chamber formed in the suction tool body, and rotatably stored in the rotary brush storage chamber facing the suction port, and a blade on the outer periphery. And a guide port for guiding outside air toward the blade at the front of the rotary brush storage chamber.

[0008] A second means of the present invention is a suction tool main body having a suction port on a lower surface, a rotating brush storage chamber formed in the suction tool main body, and a rotating brush storage chamber facing the suction port. A rotatable brush rotatably housed in the chamber and having a blade disposed on the outer periphery thereof, wherein a guide port is formed in a front portion of the rotatable brush storage chamber, and the outside air sucked from the guide port is moved from the rotation center of the rotatable brush. A guide for guiding the lower blade is formed.

According to a third aspect of the present invention, there is provided a suction tool main body having a suction port on a lower surface, a rotary brush storage chamber formed in the suction tool main body, and a rotary brush storage chamber facing the suction port. A rotatable brush rotatably housed in the chamber and having a blade disposed on the outer periphery thereof, wherein a guide port is formed in a front portion of the rotatable brush storage chamber, and external air sucked from the guide port is rotated by the rotation center of the rotatable brush. A guide for guiding the lower blade is formed, and the guide is formed substantially in a tangential direction of a rotation locus of the rotating brush.

According to a fourth aspect of the present invention, there is provided a suction tool main body having a suction port on a lower surface, a rotary brush storage chamber formed in the suction tool main body, and a rotary brush storage chamber facing the suction port. A rotatable brush rotatably housed in the chamber and having a blade disposed on the outer periphery thereof, and a guide port formed in the front of the rotary brush storage chamber, and outside air sucked from the guide port above and below the guide port. A guide for guiding the blade below the center of rotation of the rotating brush is formed, and the distance between the guides is gradually reduced as the distance from the rotating brush approaches.

According to a fifth aspect of the present invention, there is provided a suction tool main body having a suction port on a lower surface, a rotary brush storage chamber formed in the suction tool main body, and a rotary brush storage chamber facing the suction port. A rotatable brush rotatably housed in the chamber and having a blade disposed on the outer periphery thereof, and a guide port is formed in an upper front portion of the rotary brush storage chamber, and outside air sucked from the guide port is provided at a position below the guide port. A guide portion for guiding the blade below the rotation center of the rotating brush is formed.

A sixth means of the present invention is a suction tool main body having a suction port on a lower surface, a rotating brush storage chamber formed in the suction tool main body, and a rotary brush storage chamber facing the suction port. A rotatable brush rotatably housed in the chamber and having a blade disposed on the outer periphery thereof, a guide port is formed in the upper front portion of the rotatable brush storage chamber, and outside air sucked from the guide port is provided at a position rearward of the guide port. And a guide portion is formed at a position below the guide for guiding outside air guided by the guide to a blade below the rotation center of the rotating brush.

[0013]

FIG. 1 shows a first embodiment of the present invention.
7 will be described in detail below.

Reference numeral 1 denotes a suction tool main body, which is an upper case 2, a lower case 3, a lid 4 which is removably engaged with the upper case 2 and the lower case 3, and which is vertically turned between the upper and lower cases 2, 3. The rotating tube 5 is movably supported, and a joint tube 6 is rotatably supported by the rotating tube 5. The suction tool body 1
Is formed in a substantially circular cross-sectional shape, and when the suction tool main body 1 moves back and forth during cleaning, a corner of the suction tool main body 1 is caught on a floor surface or the like as compared with a conventional square suction tool main body. There is no, and mobility can be improved.

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

Numerals 9 are shaft supports formed on both sides of the suction tool main body 1, and rotatably support wheels 25 described later. Ten
Is a rib defined from the upper and lower cases 2 and 3 of the suction tool main body 1 to partition the shaft support 9 and the rotary brush storage chamber 8, and the outside air is supplied to the rotary brush storage chamber 8 via the shaft support 10. Prevents suction.

A rotary brush 11 is rotatably stored in the rotary brush storage chamber 8 in a state facing the suction port 7.
The rotating brush 11 includes a core body 12, a pair of first blades including a brush body inserted and mounted with a base 14 in a spiral groove 13 formed in the core body 12, It comprises a pair of second blades 16 mounted by inserting the base 18 into the groove 13 in a spiral shape of the core 12.

The second blade 16 has a cloth 17, a base 18 made of a synthetic resin molded at an end of the cloth 17, and a sewing part on an end of the cloth 17. And the brush-like body 19 is provided, and by forming the base 18 on the cloth-like body 17, the end of the cloth-like body 17 is deformed so as to undulate, and further the end of the cloth-like body 17 By sewing the brush-like body 19, the cloth-like body 17 is bent as if pulled. The second blade 16 is mounted on the core body 12 so as to be curved rearward with respect to the rotation direction of the rotating brush 11.

The second blade 16 is curved rearward in the rotation direction of the rotating brush 11 as shown in FIG. When the brush 11 is rotated at a high speed, the centrifugal force caused by the rotation causes the brush 11 to be in an upright state as shown in FIG. 7, and the diameter of the rotation locus in the upright state is determined by the diameter of the rotation locus of the first blade 15. It has a larger diameter. When the rotary brush 11 is stopped, the first blade 15 and the second blade 16 are formed so as not to contact the floor surface even when the suction tool main body 1 is placed on the floor surface.

Reference numeral 20 denotes a guide opening formed on the front surface of the lower case 3, which is formed over substantially the entire width of the first blade 15 and the second blade 16 of the rotary brush 11,
The outside air from the guide port 20 is supplied to the first blade of the rotating brush 11.
The rotary brush 11 is driven by being guided by the second blade 15 and the second blade 16.

As a suction path for guiding outside air for driving the rotating brush 11 to the rotating brush storage chamber 8, a configuration in which the lower front portion of the lower case 3 of the suction tool main body 1 is cut off to suck outside air may be used. It is conceivable that, with such a configuration, when cleaning a carpet or the like with long hairs, the lower case 3
Is cut off by the carpet, so that the outside air cannot be taken in, and the rotary brush 11 cannot be driven to rotate.

Therefore, as in the present embodiment, the guide port 20
Is formed on the front surface of the lower case 3 so that the carpet can be pressed on the bottom surface of the lower case 3, and the guide opening
20 is not blocked by carpets and can secure an intake of outside air.

Reference numeral 21 denotes a first rib formed on the upper edge of the guide port 20 for guiding outside air sucked from the guide port 20 to the first blade 15 and the second blade 16 of the rotating brush 11.
The first rib 21 extends from the front surface of the lower case 3 toward the edge of the suction port 7 of the lower case 3 to the first blade 15.
And a tangential direction of the rotation locus of the second blade 16, and a tip of the tip extends from the lowermost position of the rotation locus of the second blade 16 to a position (upper position) on the rotation center side of the rotating brush 11. Are located within the projection range of the rotation locus.

Reference numeral 22 denotes a second rib constituting the front edge of the suction port 7 of the lower case 3. The front end of the first rib 21 is closely opposed to the second rib 22, and the first rib 21 and the second rib 21 are provided. At 22, an intake path 23 is formed as a guide for guiding the outside air from the guide port 20 to the rotating brush 11, and a discharge port 24 is formed between the leading ends of the first rib 21 and the second rib 22. . The intake passage 23 is formed so as to be gradually narrower from the guide port 20 toward the discharge port 24.

Reference numeral 25 denotes a front wheel mounted on the shaft support 9.
The suction tool main body 1 is formed to have substantially the same diameter as the outer diameter. Reference numeral 26 denotes a small-diameter rear wheel pivotally supported by the rear part of the suction tool main body 1, and is located substantially on the extension of the axis of the joint pipe 6 connected to the suction tool main body 1.

That is, the rear wheel 26 is provided at a position where the force is most applied when the suction tool main body 1 moves back and forth during cleaning, and a side surface of the suction tool main body 1 is provided forward of the rear wheel 26.
By providing a large-diameter (approximately the same diameter as the suction tool body 1) front wheels 25, the rear wheel 26 is used as a fulcrum when changing the direction from side to side while cleaning and pushing the suction tool body 1 forward. Since the front wheels 25 rotate forward and backward, respectively, the suction tool main body 1 can be turned in a small space, and the turning property of the suction tool main body 1 is improved.

Reference numeral 27 denotes a suction keeper disposed before and after the suction port 7, which is formed of a flexible material such as soft rubber, and the suction keeper 27 improves the deep suction force. .

When the joint pipe 6 is connected to the cleaner body via a flexible hose and an extension pipe, and the electric blower of the cleaner body is driven, air is sucked from the suction port 7. When the suction tool main body 1 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 suction port 7 is largely open, the flow velocity of the air sucked from the suction port 7 is relatively low, and therefore, the rotating brush 11 hardly rotates.

When cleaning a floor surface such as a flooring or a tatami mat, the space between the surface to be cleaned and the suction port 7 is relatively large.
The suction resistance from the suction port 7 is small, so that most of the air is sucked from the suction port 7 and hardly sucked from the guide port 20. In this state, since the air sucked from between the suction port 7 and the surface to be cleaned has a high flow velocity, the suction port 7
The air sucked from the first brush 15 of the rotating brush 11
And the second brush 16 collides with the rotating brush 11 and
Medium, rotate clockwise.

The first blade 16 is curved rearward with respect to the rotating direction of the rotating brush 11 as shown in FIG. 6 when the rotating brush 11 is in a stopped state or in a low-speed rotating state. It is easy to receive air sucked from the suction port 7,
The rotating brush 11 rotates efficiently.

When the rotating brush 11 rotates at a high speed, the second blade 16 rises as shown in FIG. 7 by centrifugal force. In the upright state of the second blade 16, the second
Blade 16 comes into contact with the floor or tatami mat and cleans. Since the second blade 16 uses the easily deformable cloth-like body 17, even if it touches the floor surface or the tatami mat, the floor surface or the tatami mat is not damaged.

When cleaning the surface to be cleaned such as a carpet, the suction port 7 is blocked by the surface to be cleaned, the intake resistance from the suction port 7 increases, and the amount of outside air sucked from the guide port 20 increases. I do.
Since the discharge port 24 has an opening area smaller than that of the suction port 7, air sucked from the discharge port 24 is supplied to the first blade 15 and the second blade 16 of the rotating brush 11 at a high flow velocity. Collision causes the rotating brush 11 to rotate clockwise in FIG.

Since the guide port 20 is formed at the front of the rotary brush storage chamber of the suction tool main body 1, the flow of outside air sucked from the guide port 20 and sucked into the rotary pipe 5 becomes smooth.
The loss of the flow rate of the outside air can be reduced, and the rotation efficiency of the rotating brush does not decrease.

The first rib 21 has a tip extending from the lowermost position of the rotation locus of the second blade 16 to a position (upper position) on the rotation center side of the rotating brush 11 so as to be within the projection range of the rotation locus. Since it is located, the outside air sucked from the discharge port 24 can be reliably guided to the first blade 15 and the second blade 16, and the rotary brush 11 can be driven to rotate efficiently.

The outside air sucked from the guide port 20 is guided by the first blade 15 and the second blade 16 below the center of rotation of the rotating brush 11, passes over the surface to be cleaned, and passes through the rotating pipe 5. Since it is sucked, dust on the surface to be cleaned can be efficiently collected.

Further, since the first rib 21 is formed to be inclined in the tangential direction of the rotation trajectory of the first blade 15 and the second blade 16, the first rib 21 efficiently removes the outside air from the first blade.
15 and the second blade 16 can be guided by a rotating brush
Eleven rotation efficiency can be improved.

The intake passage 23 for guiding the outside air from the guide port 20 to the discharge port 24 is configured so as to be gradually narrowed toward the discharge port 24, so that generation of noise due to a change in the area of the ventilation path is reduced. At the same time, the first blade 15 and the second
The rotation efficiency of the rotating brush 11 can be improved by increasing the flow velocity of the outside air that collides with the blade 16 of FIG.

Furthermore, by sucking air from the guide port 20, the suction tool main body 1 can be prevented from sticking to the surface to be cleaned, and the mobility of the suction tool main body 1 can be improved.

At the time of cleaning a carpet or the like, the surface to be cleaned becomes a resistance, and the rotation speed of the rotating brush 11 decreases. However, when the rotation speed of the rotating brush 11 decreases, the second blade 16 is subjected to centrifugal force. With a decrease in the rotation speed, the curved surface gradually curves rearward in the rotation direction so as to restore the shape at the time of stop, the contact resistance with the surface to be cleaned is reduced, and the rotation speed is increased. By repeating this operation, the rotation speed of the rotating brush 11 is maintained substantially constant.

The second blade 16 has a brush-like body
19 is sewn on the second blade 16
Can be easily bent, and the brush-like body 19 can be easily bent.
As a weight, the second blade 16 can be easily raised by centrifugal force, and the second blade 16 can be raised and curved even by a slight rotation speed variation of the rotating brush 11, and the rotation of the rotating brush 11 The number can be kept almost constant.

FIGS. 8 to 1 show a second embodiment of the present invention.
2 will be described in detail below. Note that the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

Reference numeral 31 denotes a suction tool main body, and an upper case 32 and a lower case
33, a lid 34 which is detachably engaged with the upper case 32 and the lower case 33, a rotating pipe 37 which is rotatably supported between the upper and lower cases 32, 33 and includes upper and lower members 35, 36, The rotating pipe 37
The upper and lower members 35 and 36 are formed of a joint pipe 38 which is vertically slidably held.

The upper member 35 of the rotating tube 37 has a sliding member 39 slidable with respect to the upper member 35, and an engaging claw 40 formed at an end of the sliding member 39 It is engaged with a flange 41 formed on the outer periphery of the opening end of the joint pipe 38, and
When turning 38 upward with respect to the suction tool body 31,
The sliding member 39 is housed in the upper member 35 of the rotating tube 37,
38 can rotate to about 90 degrees with respect to the suction tool main body 31.

Reference numeral 42 denotes a curved guide formed at the front end of the suction port 7 of the lower case 33. Outside air sucked from a guide port 45 described later collides with the guide 42 and guides it toward the rotary brush 11 side. It is supposed to be. A small wheel 43 is provided on the lower surface of the guide section 42.

Reference numeral 44 denotes a projecting opening formed on both sides of the front end of the lower case 33 so as to communicate with the suction port 7. The suction port 7 extends forward of the front wheel 43 and includes the front wheel 43. A suction port is formed over the entire width of the suction tool main body 31, thereby improving cleaning efficiency.

Reference numeral 45 denotes a guide port formed in front of the lid 34 and formed at a position corresponding to both sides of the rotary brush 11. Reference numeral 46 denotes a guide rib which is formed to be hung on the guide port 45 rear side of the lid 34, and guides the outside air sucked from the guide port 45 toward the guide portion 42. The lower end extends to the position of the center of rotation of the rotating brush 11 or below the center of rotation.

The rotating brush 11 is composed of a first blade 47 formed in a curved shape rearward in the rotation direction with rubber or the like, and a pair of second blades 16 similar to the first embodiment. Have.

Reference numeral 48 denotes the projecting opening 44 in front of the lid 34.
The air sucked from the inlet 48 guides the dust located in front of the front wheel 25 to the inlet 7 so that the dust sucked up from the inlet 48 guides the dust to the inlet 7 so that the dust can be sucked. ing.

Reference numeral 49 denotes an extended portion protruding from a substantially central portion at the rear of the lower case 33. A rear wheel 50 is rotatably supported at the rear end of the extended portion 49, so that the main body of the suction tool is cleaned during cleaning. By supporting the lower part of the connection between the rotating pipe 37 and the joint pipe 38 where the force is most applied to the rear 31 by the rear wheel 50, it is possible to prevent the suction tool main body 31 from lifting up in front and maintain a good balance. I can do it.

Reference numeral 51 denotes a raised member provided on the lower surface of the extending portion 49. The raised member 51 allows the floor surface to be wiped and cleaned when the suction tool main body 31 moves in the front-rear direction.

52 is an upper and lower case at the front of the suction tool body 31.
A bumper disposed so as to be sandwiched between 32 and 33. The bumper is formed of a flexible material such as soft rubber and integrally forms a flap 53 serving as a suction keeper. The deep suction force is improved by the suction keeper 54 arranged at the rear of the rear end.
A plurality of protrusions 55 are formed on the back surface of the flap 53 of the bumper 52, and when the suction tool main body 31 is pulled toward the user during cleaning, the protrusions 55 remove lint or the like on a surface to be cleaned such as a carpet. It can be hooked and sucked securely.

When the joint pipe 38 is connected to the cleaner body via the flexible hose and the extension pipe, and the electric blower of the cleaner body is driven, air is sucked from the suction port 7. When the suction tool main body 31 is lifted from the surface to be cleaned, the suction port 7
Most of the air is sucked in from the suction port 7 because the suction resistance from the suction port is small. In this state, since the suction port 7 is largely open, the flow velocity of the air sucked from the suction port 7 is relatively low, and therefore, the rotating brush 11 hardly rotates.

When cleaning floors such as flooring, tatami mats, etc., the space between the surface to be cleaned and the suction port 7 is relatively large.
The suction resistance from the suction port 7 is small, so that most of the air is sucked from the suction port 7 and hardly sucked from the guide port 45 and the inflow port 48. In this state, since the air sucked from the space between the suction port 7 and the surface to be cleaned has a high flow velocity, the air sucked from the suction port 7 collides with the blades 16 and 47 of the rotating brush 11, and the rotating brush 11 Rotate counterclockwise in FIG.

When cleaning the surface to be cleaned such as a carpet, the suction port 7 is covered by the surface to be cleaned, the intake resistance from the suction port 7 increases, and the outside air sucked from the guide port 45 and the inflow port 48 is removed. The amount increases. Since the guide port 45 has an extremely small opening area as compared with the suction port 7, the air sucked from the guide port 45 collides with the guide portion 42 of the lower case 33 at a high flow rate,
The direction in which the outside air flows is changed in the guide portion 42 and collides with the blades 16 and 47 of the rotating brush 11 to cause the rotating brush 11 to move in FIG.
1 Rotate counterclockwise.

The air that has flowed in through the guide port 45 is supplied to the suction device main body.
31 Spray downward and guide the rotating brush 11
The direction is changed to the side, and it collides with the blades 16 and 47 located below the core body 12 of the rotating brush 11, and the blades 16 and 47 are caught on the carpet etc. when cleaning a carpet with long bristle feet. And the rotating brush 11 can be surely rotated.

Also, as with the guide port 45, the inflow port 48 has an opening area much smaller than that of the suction port 7, so that the air sucked from the inflow port 48 can flow into the front wheel at a high speed.
The dust flows into the protruding opening 44 corresponding to the front of the front wheel 25, and can be sucked through the suction port 7 so as to wind up the dust at the position corresponding to the front of the front wheel 25, and suck the dust over the entire width of the suction tool body 31. Therefore, unsucked portions can be reduced as much as possible.

The guide rib 46 has its tip extending below the rotation center position or the rotation center of the rotary brush 11, and the air sucked from the guide port 45 passes directly above the rotary brush 11 and turns directly. The suction by the pipe 38 can be prevented and the guide can be reliably guided to the guide portion 42, and the rotary brush 11 can be efficiently rotated.

Since the guide openings 45 are formed at two positions corresponding to both sides of the rotating brush 11, the efficiency of removing dust at both ends where suction force is weakest can be improved, and the blades 16 of the rotating brush 11 can be improved. , 47, combined with the fact that it is twisted approximately 90 degrees between both ends, of the blades 16, 47,
Since the outside air always collides with two places, the rotating brush 11 can be smoothly rotated.

[0059]

According to the first aspect of the present invention, even when cleaning a carpet or the like, the outside air is guided from the guide port to the blade of the rotating brush without providing a turbine for driving the rotating brush. The rotary brush can be driven to rotate efficiently.

Further, since the guide port is formed at the front of the rotary brush storage chamber of the suction tool main body, the flow path of the outside air taken in from the guide port and sucked into the cleaner body becomes linear, and the flow of the external air is reduced. The smoothness can be reduced, the flow velocity loss can be reduced, and the outside air can be efficiently used to sufficiently obtain the driving force of the rotating brush.

According to the configuration of the second aspect of the present invention, without providing a turbine for driving the rotating brush, the outside air is guided from the guide port to the blade of the rotating brush, thereby efficiently cleaning a carpet or the like. The rotation efficiency of the rotating brush can be further improved by providing a guide for guiding the outside air from the guide port to the blade, while rotating the rotating brush.

Further, since the guide port is formed in the front of the rotary brush storage chamber of the suction tool main body, the flow path of the outside air taken in from the guide port and sucked into the cleaner body becomes linear, and the flow of the external air is reduced. The smoothness can be reduced, the flow velocity loss can be reduced, and the outside air can be efficiently used to sufficiently obtain the driving force of the rotating brush.

According to the configuration of the third aspect of the present invention, without providing a turbine for driving the rotating brush, the outside air is guided from the guide port to the blade of the rotating brush, thereby efficiently cleaning the carpet or the like. The rotating brush can be driven to rotate, and a guide that guides the outside air from the guide port to the blade is provided, and the guide is formed substantially in the tangential direction of the rotating locus of the rotating brush, thereby further improving the rotating efficiency of the rotating brush. it can.

Since the guide opening is formed at the front of the rotary brush storage chamber of the suction device main body, the flow path of the outside air taken in from the guide opening and sucked into the cleaner body becomes linear, and the flow of the outside air is reduced. The smoothness can be reduced, the flow velocity loss can be reduced, and the outside air can be efficiently used to sufficiently obtain the driving force of the rotating brush.

According to the structure of the fourth aspect of the present invention, without providing a turbine for driving the rotating brush, the outside air is guided from the guide port to the blade of the rotating brush, thereby efficiently cleaning a carpet or the like. The rotation efficiency of the rotating brush can be further improved by providing a guide for guiding the outside air from the guide port to the blade, while rotating the rotating brush.

Since the guide opening is formed at the front of the rotary brush storage chamber of the suction device main body, the flow path of the outside air taken in from the guide opening and sucked into the cleaner body becomes linear, and the flow of the outside air is reduced. The smoothness can be reduced, the flow velocity loss can be reduced, and the outside air can be efficiently used to sufficiently obtain the driving force of the rotating brush.

Further, by forming the guide gradually narrower as it comes closer to the rotating brush, noise generation due to a change in the air passage area is reduced, and the flow rate of outside air is increased to improve the rotating efficiency of the rotating brush. can do.

According to the structure of the fifth aspect of the present invention, without providing a turbine for driving the rotating brush, the outside air is guided from the guide port to the blade of the rotating brush, thereby efficiently cleaning the carpet or the like. The rotating brush can be driven to rotate, and the guide portion for guiding the outside air from the guide port to the blade can further improve the rotating efficiency of the rotating brush.

Since the guide opening is formed at the front of the rotary brush storage chamber of the suction device main body, the flow path of the outside air which is taken in from the guide opening and sucked into the cleaner body becomes linear, and the flow of the outside air is reduced. Smoothness can reduce the loss of flow velocity, and the driving force of the rotating brush can be sufficiently obtained by efficiently using outside air.

According to the structure of the sixth aspect of the present invention, without providing a turbine for driving the rotating brush, the outside air is guided from the guide port to the blade of the rotating brush, thereby efficiently cleaning a carpet or the like. The rotating brush can be driven to rotate, and the guide portion for guiding the outside air from the guide port to the blade can further improve the rotating efficiency of the rotating brush.

Further, since the guide port is formed in the front of the rotary brush storage chamber of the suction tool main body, the flow path of the outside air taken in from the guide port and sucked into the cleaner body becomes straight, and the flow of the external air is reduced. Smoothness can reduce the loss of flow velocity, and the driving force of the rotating brush can be sufficiently obtained by efficiently using outside air.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a floor suction tool according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view as viewed from another direction.

FIG. 3 is a front view of the same.

FIG. 4 is a top view of the same.

FIG. 5 is a side view of the same.

FIG. 6 is a sectional view of the rotating brush in a stopped state.

FIG. 7 is a sectional view of the same rotating state.

FIG. 8 is a plan view showing a second embodiment of the present invention.

FIG. 9 is a sectional view of the same.

FIG. 10 is a cross-sectional view of a substantially central portion in the longitudinal direction of the suction tool main body viewed from another direction.

FIG. 11 is a sectional view of another part.

FIG. 12 is a side view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Suction implement main body 8 Rotary brush storage chamber 11 Rotary brush 16 Blade 15 Brush body 20 Guide opening 21 First rib (guide) 22 Second rib (guide) 31 Suction implement main body 42 Guide section 45 Guide opening

Continued on the front page (72) Inventor Toshiyuki Fujiyoshi 2-5-2-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Inventor Hidetoshi Fukuoka 2-5-5-1 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Inventor Kazuhiro Fujii 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd.

Claims (6)

[Claims] 1. A suction tool main body having a suction port on a lower surface, a rotary brush storage chamber formed in the suction tool main body, and rotatably stored in the rotary brush storage chamber facing the suction port. A rotary brush having a blade disposed on an outer periphery thereof, and a guide port for guiding outside air toward the blade is formed at a front portion of the rotary brush storage chamber. 2. A suction tool main body having a suction port on a lower surface, a rotary brush storage chamber formed in the suction tool main body, and rotatably stored in the rotary brush storage chamber in a state facing the suction port. A rotary brush having a blade disposed on an outer periphery thereof, a guide opening formed in a front portion of the rotary brush storage chamber, and a guide for guiding outside air sucked from the guide opening to a blade below a rotation center of the rotary brush. A floor suction tool characterized in that a floor is formed. 3. A suction tool main body having a suction port on a lower surface, a rotary brush storage chamber formed in the suction tool main body, and rotatably stored in the rotary brush storage chamber in a state facing the suction port. A rotating brush having a blade disposed on an outer periphery thereof, a guide opening is formed in a front portion of the rotating brush storage chamber, and outside air sucked from the guiding opening is guided to a blade below a rotation center of the rotating brush. A floor suction device, wherein a guide is formed, and the guide is formed substantially in a tangential direction of a rotation locus of the rotating brush. 4. A suction tool main body having a suction port on a lower surface, a rotary brush storage chamber formed in the suction tool main body, and rotatably stored in the rotary brush storage chamber in a state facing the suction port. A rotating brush having a blade disposed on the outer periphery thereof, and a guide opening formed in the front portion of the rotating brush storage chamber, and outside air sucked from the guide opening below and above the guide opening below the rotation center of the rotating brush. A guide for guiding floors is formed, and the space between the guides is gradually reduced as the distance from the rotating brush approaches. 5. A suction tool main body having a suction port on a lower surface, a rotary brush storage chamber formed in the suction tool main body, and rotatably stored in the rotary brush storage chamber in a state facing the suction port. A rotary brush having a blade disposed on an outer periphery thereof, a guide port is formed in an upper front part of the rotary brush storage chamber, and outside air sucked from the guide port is positioned below the guide port below the rotation center of the rotary brush. A floor suction device, wherein a guide portion for guiding the blade is formed. 6. A suction tool main body having a suction port on a lower surface, a rotary brush storage chamber formed in the suction tool main body, and rotatably stored in the rotary brush storage chamber in a state facing the suction port. A rotating brush provided with a blade on the outer periphery, a guide opening is formed at the upper front of the rotating brush storage chamber,
A guide for guiding the outside air sucked from the guide port downward is formed at the guide port rear position, and at the guide lower position,
A floor suction device, wherein a guide portion for guiding outside air guided by a guide to a blade below a rotation center of a rotating brush is formed.