JP2003070693A - Suction tool for floor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a suction tool for floor in a simple structure which can rotate and drive a rotating brush efficiently. SOLUTION: A rotating brush container 8 is formed within a suction tool body 1, the rotating brush 11 is rotatably contained facing a suction port 7 formed on the bottom face of the suction tool body 1 within the rotating brush container 8, a discharge port 23 is formed at both sides of the suction tool body 1 for supplying outside air to a brush body 15 and a blade 16 in the direction where air sucked through the suction port 7 collides with the brush body 15 and the blade 16 of the rotating brush 11, and the rotating brush 11 is rotated by receiving the outside air from the discharge port 23 with the brush body 15 and the blade 16.

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art Conventionally, as this kind of floor suction tool, there has been known one in which a rotary brush is rotatably supported by a suction tool body and the rotary brush is rotationally driven by an electric motor or a turbine.

The rotary brush driven by an electric motor has drawbacks that the electric motor is heavy and the handleability is poor, the structure is complicated and the number of parts is increased, and the assembling workability is poor.

Further, in a rotary brush driven by a turbine, the turbine is arranged in a turbine chamber formed in a suction passage from the suction port to the cleaner body, and is rotated by air sucked together with dust. Since it is configured, there is a problem that dust and the like are entangled in the turbine due to long-term use and the turbine does not rotate properly.

Therefore, in order to solve the above-mentioned drawbacks, turbines are arranged at both ends of a rotating brush in JP-A-9-28630 (A47L 9/04) and the like, and clean external air is supplied to the turbines. It has been proposed that the turbine be rotated to suck the air into the vacuum cleaner together with the air taken in through the suction port.

However, in this structure, it is necessary to dispose the turbines on both sides of the rotating brush, the number of parts increases, and a large amount of outside air is sucked to rotate the turbine, which deteriorates the dust suction characteristic. Therefore, it is necessary to efficiently rotate the turbine with a small amount of outside air so that the turbine shape becomes complicated. Further, there is a drawback that the suction port cannot be formed on the lower surface of the turbine housing chamber, the suction port becomes smaller than the width of the main body of the suction tool, and dust or the like remains unsucked.

[0007]

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

[0008]

The first means of the present invention is to:
A suction tool body having a suction port on a lower surface, a rotary brush storage chamber formed in the suction tool body, a joint pipe communicating with the rotary brush storage chamber at a substantially central position in the width direction of the suction tool body, A rotary brush that is rotatably accommodated in the rotary brush storage chamber facing the suction port, and discharge ports for supplying outside air to the blades of the rotary brush are formed at both sides of the suction tool body. To do.

According to a second aspect of the present invention, there is provided a suction tool body having a suction port on a lower surface thereof, a rotary brush accommodating chamber formed in the suction tool body, and a substantially central position in a width direction of the suction tool body. A joint pipe that communicates with the rotary brush storage chamber, and a rotary brush that is rotatably stored in the rotary brush storage chamber facing the suction port, are provided with guide ports at both side positions of the suction tool body, and A guide for guiding the outside air from the guide opening to the blade of the rotating brush is formed.

According to a third aspect of the present invention, a suction tool body having a suction port on a lower surface thereof, a rotary brush storage chamber formed in the suction tool body, and a substantially central position in a width direction of the suction tool body are provided. A joint pipe that communicates with the rotary brush storage chamber, and a rotary brush that is rotatably stored in the rotary brush storage chamber by facing the suction port, are provided on both front side positions of the suction tool body.
A guide port for supplying outside air to the blade of the rotating brush is formed.

According to a fourth aspect of the present invention, there is provided a suction tool body having a suction port on a lower surface thereof, a rotary brush accommodating chamber formed in the suction tool body, and a substantially central position in a width direction of the suction tool body. The rotary brush storage chamber is provided with a joint pipe communicating with the rotary brush storage chamber, and a rotary brush facing the suction port and rotatably stored in the rotary brush storage chamber. It is characterized in that a discharge port for supplying to the body is formed.

A fifth means of the present invention is to provide a suction tool body having a suction port on a lower surface thereof, a rotary brush accommodating chamber formed in the suction tool body, and a substantially central position in the width direction of the suction tool body. A joint pipe that communicates with the rotary brush storage chamber, and a rotary brush that is rotatably stored in the rotary brush storage chamber facing the suction port, are provided with guide ports at both side positions of the suction tool body, and It is characterized in that a guide for guiding the outside air from the guide opening to the brush body of the rotary brush is formed.

According to a sixth aspect of the present invention, a suction tool body having a suction port on a lower surface thereof, a rotary brush storage chamber formed in the suction tool body, and the suction tool body at a substantially central position in the width direction are provided. A joint pipe that communicates with the rotary brush storage chamber, and a rotary brush that is rotatably stored in the rotary brush storage chamber by facing the suction port, are provided on both front side positions of the suction tool body.
A guide port for supplying outside air to the brush body of the rotating brush is formed.

A seventh means of the present invention is to provide a suction tool body having a suction port on the lower surface thereof, a rotary brush storage chamber formed in the suction tool body, and a rotary brush storage chamber facing the suction port. A rotary brush that is rotatably accommodated is provided, and guide ports that guide outside air toward a surface to be cleaned in front of the rotary brush storage chamber are formed at both sides of the suction tool body.

An eighth means of the present invention is that a suction tool body having a suction port on a lower surface thereof, a rotary brush storage chamber formed in the suction tool body, and a substantially central position in a width direction of the suction tool body. A joint pipe that communicates with the rotary brush storage chamber, and a rotary brush that is rotatably stored in the rotary brush storage chamber facing the suction port, are provided at both front positions of the suction tool body.
A guide opening for guiding the outside air toward the lower part of the suction tool body is formed, and a guide portion for guiding the outside air from the guide opening toward the rotating brush is formed at the lower part of the suction tool body.

A ninth means of the present invention is the suction tool body having a suction port on the lower surface, a rotary brush storage chamber formed in the suction tool body, and the suction tool body at a substantially central position in the width direction. A joint pipe that communicates with the rotary brush storage chamber, and a rotary brush that is rotatably stored in the rotary brush storage chamber facing the suction port, are provided at both front positions of the suction tool body.
A guide port for guiding the outside air toward the lower part of the suction tool body is formed, and a guide portion for guiding the outside air from the guide port toward the rotating brush is formed at the lower part of the suction tool body, and is provided at the rear of the guide port. Is characterized in that a guide for guiding the outside air from the guide port toward the guide portion is formed.

A tenth means of the present invention is that a suction tool body having a suction port on a lower surface thereof, a rotary brush accommodating chamber formed in the suction tool body, and a substantially central position in a width direction of the suction tool body. A suction pipe main body is provided with a joint pipe communicating with the rotary brush storage chamber and a rotary brush that is rotatably stored in the rotary brush storage chamber facing the suction port. In addition to forming a guide port that guides downward, a guide portion that guides the outside air from the guide port toward the rotating brush is formed in the lower part of the suction tool body, and a guide port is provided behind the guide port from the guide port. A guide for guiding the outside air toward the guide portion is formed, and the guide is extended to the rotation center of the rotating brush or to extend below the rotation center.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a first embodiment of the present invention.
It will be described below in detail with reference to FIG.

Reference numeral 1 denotes a suction body, which is vertically movable between an upper case 2, a lower case 3, a lid 4 which is detachably engaged with the upper case 2 and the lower case 3, and upper and lower cases 2 and 3. The rotating tube 5 is supported, and the joint tube 6 is rotatably supported by the rotating tube 5.

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

Reference numeral 9 is a shaft support portion formed on both sides of the suction tool body 1 and rotatably supports a wheel 27 described later. Ten
Is a partition rib that is hung from the upper and lower cases 2 and 3 of the suction tool body 1 to partition the shaft support portion 10 and the rotary brush storage chamber 8 from the outside, and the outside air is transferred to the rotary brush storage chamber 8 through the shaft support portion 10. Prevents being sucked.

Reference numeral 11 denotes a rotary brush which is rotatably housed in the rotary brush housing chamber 8 while facing the suction port 7.
The rotating brush 11 includes a core body 12, a pair of brush bodies 15 mounted by inserting a base portion 14 into a spiral groove 13 formed in the core body 12, and a spiral groove of the core body 12. It is composed of a pair of blades 16 which are mounted by inserting the base portion 18 into the brush 13.
It is twisted.

The blade 16 includes a cloth-like body 17 and the cloth-like body.
Base composed of synthetic resin molded at the end of 17
18 and a brush-like body 19 sewn on the end of the cloth-like body 17
By forming a base portion 18 on the cloth-like body 17, the end of the cloth-like body 17 is deformed into a wavy shape, and further, a brush-like body 19 is sewn to the end of the cloth-like body 17. As a result, the cloth-like body 17 is bent and curved. The blade 16 is attached to the core body 12 so as to be curved rearward with respect to the rotation direction of the rotating brush 11.

As shown in FIG. 4, the blade 16 is curved rearward with respect to the rotating direction of the rotating brush 11 when the rotating brush 11 is in the rotation stop state and the low speed rotating state. In the high-speed rotation state, the centrifugal force associated with the rotation causes a standing state as shown in FIG. 5, and the diameter of the rotation locus in the standing state is
It is formed to have a diameter larger than the diameter of the rotation trajectory of the brush body 15. When the rotary brush 11 is stopped, the suction tool body 1
The brush body 15 and the blade 16 are formed so as not to come in contact with the floor surface even when is placed on the floor surface.

Reference numeral 20 denotes a guide port formed on the upper surface of the lid 4, which is formed at a position corresponding to both ends of the rotary brush 11 in the width direction. Reference numeral 21 is a first rib formed on the front side of the guide port 20 and constitutes a guide for guiding the outside air sucked from the guide port 20 to the brush body 15 and the blade 16 of the rotary brush 11. The first rib 21 is formed so as to hang from the back surface of the lid body 4 to a position closer to the rotation center of the rotating brush 11 than the frontmost position of the rotation trajectory of the blade 16, and is located within the projection range of the rotation trajectory. It extends below the highest position of the 15 rotation paths.

Reference numeral 22 is a second rib formed on the rear side of the guide port 20 for the outside air sucked from the guide port 20 to the rotary brush 11.
And guides to the brush body 15 and the blade 16. The second rib 22 extends forward from the center of rotation of the rotary brush 11, and a discharge port 23 is formed between the tips of the first rib 21 and the second rib 22.

Reference numeral 24 denotes a cover body mounted on the lid body 4 by a plurality of locking claws 25, which covers the upper side of the discharge port 23 and
23 is not directly visible from the outside. An intake passage 26 is formed between the first rib 21, the second rib 22 and the cover body 24, and the intake passage 26 is configured so that the width gradually narrows from the guide port 20 toward the discharge port 23.

Reference numeral 27 is 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. 28 is a rear wheel pivotally supported on the rear part of the suction tool body 1, 29 is a suction keeper disposed before and after the suction port 7, and is formed of a flexible material such as soft rubber, The suction keeper 29 improves the deep suction force.

When the joint pipe 6 is connected to the main body of the cleaner through the flexible hose and the extension pipe and the electric blower of the main body of the cleaner is driven, air is sucked from the suction port 7. When the suction tool body 1 is lifted from the surface to be cleaned, the suction port 7
Since the suction resistance from is small, most of the air is sucked in through the suction port 7. In this state, since the suction port 7 is widely opened, the flow velocity of the air sucked from the suction port 7 is relatively low, and therefore the rotary brush 11 hardly rotates.

When cleaning a floor 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, most of the air is sucked from the suction port 7, and almost no air is sucked from the guide port 7. In this state, the flow velocity of the air sucked from between the suction port 7 and the surface to be cleaned is high, so that the suction port 7
The air sucked from collides with the brush body 15 and the blade 16 of the rotary brush 11, and rotates the rotary brush 11 counterclockwise in FIG.

Since the blade 16 is curved rearward with respect to the rotating direction of the rotating brush 11 as shown in FIG. 4 when the rotating brush 11 is in a rotation stopped state or a low speed rotating state, the blade 16 is sucked from the suction port 7. The rotating brush 11 rotates efficiently because it is easy to receive the generated air.

When the rotating brush 11 rotates at high speed, the blade
The centrifugal force causes 16 to stand up as shown in FIG. In the standing state of the blade 16, the blade 16 comes into contact with the floor surface or the tatami mat and cleans it. Since the blade 16 uses the flexible cloth-like body 17, it does not damage the floor surface or the tatami mat even if it contacts the floor surface or the tatami mat.

When cleaning a surface to be cleaned such as a carpet, the suction port 7 is covered with the surface to be cleaned, the suction resistance from the suction port 7 increases, and the amount of outside air sucked from the guide port 20 increases. .
Since the discharge port 23 has an opening area extremely smaller than that of the suction port 7, the air sucked from the discharge port 23 collides with the brush body 15 and the blade 16 of the rotating brush 11 at a high flow rate, and the rotating brush Rotate 11 counterclockwise in FIG.

Since the first rib 21 is formed so as to hang from the foremost position of the rotation locus of the blade 16 to the position on the rotation center side of the rotating brush 11, and extends below the highest position of the rotation locus of the brush body 15, The outside air sucked from the outlet 23 is a brush body
The brush body 15 and the blade 15 are reliably prevented from colliding with the front of the rotating brush 11 without colliding with the 15 or the blade 16.
Therefore, the rotary brush 11 can be efficiently driven to rotate.

Further, since the second rib 22 extends forward of the center of rotation of the rotary brush 11 toward the brush body 15 and the blade 16, the outside air sucked from the discharge port 23 is absorbed by the brush body 15. Also, it is possible to prevent the suction from being directly sucked by the rotating tube 5 by passing above the rotary brush 11 without contacting the blade 16, and to reliably guide the brush body 15 and the blade 16. It can be efficiently rotationally driven.

The intake passage 26 that guides the outside air from the guide port 20 to the discharge port 23 is constructed so as to gradually narrow toward the discharge port 23, so that the generation of noise due to the change of the ventilation passage area is reduced. The brush body 15 and the blade from the discharge port 23
It is possible to improve the rotational efficiency of the rotating brush 11 by increasing the flow velocity of the outside air that collides with the rotating shaft 16.

The outside air from the guide port 20 collides with the surface to be cleaned so that the dust or the like on the surface to be cleaned is lifted up. Since the guide port 20 can be removed, and the guide ports 20 are formed at the positions corresponding to both end portions of the rotary brush 11, the dust removal efficiency on both end sides having the weakest suction force can be improved.

Further, by sucking air from the guide port 20, it is possible to suppress the suction tool body 1 from sticking to the surface to be cleaned and improve the mobility of the suction tool body 1.

When cleaning a carpet or the like, the surface to be cleaned becomes a resistance and the rotation speed of the rotating brush 11 decreases, but when the rotation speed of the rotating brush 11 decreases, the blade 16 decreases in centrifugal force. Along with that, it gradually curves back to the direction of rotation so as to restore the shape at the time of stop, and the contact resistance with the surface to be cleaned decreases and the number of rotations increases. By repeating this operation, the rotation speed of the rotating brush 11 is maintained substantially constant.

Since the blade 16 is constructed by sewing the brush-like body 19 to the cloth-like body 17, the blade 16 can be easily bent and the blade-like body 19 is used as a weight to centrifugally apply the blade 16 to the blade 16. The blade 16 can be easily erected, and the blade 16 can be erected and curved even if the rotational speed of the rotary brush 11 varies slightly, so that the rotational speed of the rotary brush 11 can be maintained substantially constant.

In the above embodiment, the blade 16
Is composed of a cloth-like body 17, a base portion 18 and a brush-like body 19,
It may be integrally formed of a flexible material such as soft rubber.

Further, in the above embodiment, the intake passage
Although 26 is formed by a horizontally long slit, the strength of the lid 4 is reduced, and the lid 4 is deformed toward the rotary brush storage chamber 8 side due to the pressure drop of the rotary brush storage chamber 8 when cleaning a carpet or the like. In order to prevent the brush body 15 and the blade 16 from coming into contact with the first ribs 21 and the second ribs 22, it is preferable that the intake passage 26 be divided into a plurality of parts.

Next, a second embodiment of the present invention will be described in detail below with reference to FIGS. 6 to 8. The same parts as those of the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

Reference numeral 30 is a guide port formed in the lower front part of the suction tool body 1 by locating the bottom surface of the suction tool body 1 in front of the suction port 7 above the other bottom surface portions.
It is formed at a position corresponding to both ends of the rotating body 15 and the blade 16 of 11 and communicates with the suction port 7.

Reference numeral 31 denotes a bumper which is sandwiched and fixed between the upper case 2 and the lid 4 and the lower case 3, and is made of a flexible material such as soft rubber. 32 is the bumper 31
The guide port 30 is closed by a closing body integrally formed with the above.

Thus, according to the second embodiment of the present invention, when the joint pipe 6 is connected to the cleaner body through 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 body 7 is lifted from the surface to be cleaned, the suction resistance from the suction port 7 is small, so most of the air is sucked from the suction port 7. In this state, since the suction port 7 is widely opened, the flow velocity of the air sucked from the suction port 7 is relatively low, and the rotary brush 11 hardly rotates.

When the floor surface such as a flooring or the tatami mat is to be cleaned, since the space between the surface to be cleaned and the suction port 7 is relatively wide, the suction resistance from the suction port 7 is small and the space between the rotary brush storage chambers 8 is small. The pressure does not become large negative pressure. Therefore, the guideway
The guide body 30 is not opened by deformation of the closing body 32 that closes the opening 30. In this state, the air sucked from between the suction port 7 and the surface to be cleaned has a high flow velocity, so that the air sucked from the suction port 7 is absorbed by the brush body 15 and the blade 16 of the rotating brush 11.
And the rotary brush 11 is driven to rotate counterclockwise in FIG.

When cleaning the surface to be cleaned of a carpet or the like, the suction port 7 is covered with the surface to be cleaned, the suction resistance from the suction port 7 increases, and the pressure in the rotary brush storage chamber 8 decreases. As shown in FIG. 7, the closing body 32 is deformed toward the suction port 7 side to open the guide port 30, and the outside air sucked through the guide port 30 collides with the brush body 15 and the blade 16 to rotate. Brush 11
To rotate. The outside air sucked from the guide port 30 collides with the brush body 15 and the blade 16 in the process of being sucked toward the rotating tube 5, so that the colliding force on the brush body 15 and the blade 16 is strong and the rotating brush 11 Rotate efficiently.

The outside air from the guide port 30 collides with the surface to be cleaned so that the dust and the like on the surface to be cleaned floats up. Since the guide port 20 can be removed, and the guide ports 20 are formed at the positions corresponding to both side portions of the rotary brush 11, the dust removal efficiency of the portion having the weakest suction force can be improved.

Further, by sucking the outside air through the guide port 30, it is possible to prevent the suction tool body 1 from sticking to the surface to be cleaned, and to improve the mobility of the suction tool body 1.

FIG. 9 and FIG. 1 show the third embodiment of the present invention.
Details will be described below based on 0. The same parts as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

Reference numeral 33 is a guide port formed in the lid 4 of the suction tool body 1, which is formed in the central portion of the suction tool body 1 in the width direction. Reference numeral 34 is a guide rib that is formed so as to hang down from the lid 4, and guides the outside air sucked from the guide port 33 so as to collide with the surface to be cleaned in front of the rotary brush 11. Reference numeral 35 denotes a cover that covers a portion of the lid body 4 in which the guide port 33 is formed with a space between the lid body 4 and a vent hole 36 that communicates with the guide port 33 through the space. . Therefore,
Joint pipe 6 through the flexible hose and extension pipe to the cleaner body
Is connected and the electric blower of the cleaner body is driven, air is sucked from the suction port 7. When the suction tool body 7 is lifted from the surface to be cleaned, since the suction port 7 is wide open, the flow velocity of the air sucked from the suction port 7 is relatively low, and therefore the rotary brush 11 is almost rotated. There is no.

When cleaning a floor 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, most of the air is sucked from the suction port 7, and almost no air is sucked from the guide port 33. In this state, the flow velocity of the air sucked from between the suction port 7 and the surface to be cleaned is high, so that the suction port 7
The air sucked from collides with the brush body 15 and the blade 16 of the rotary brush 11, and rotates the rotary brush 11 counterclockwise in FIG.

When cleaning a surface to be cleaned such as a carpet, the suction port 7 is covered with the surface to be cleaned, the suction resistance from the suction port 7 increases, and the amount of air sucked from the guide port 33 increases. .
Since the opening area of the guide opening 33 is small, the air sucked from the guide opening 33 collides with the surface to be cleaned at a high flow velocity and bounces dust and the like on the surface to be cleaned, and the air is sucked into the cleaner body together with the dust. Sucked. The outside air sucked from the guide port 33 is guided to the surface to be cleaned by the guide ribs 34, collides with the surface to be cleaned at a high flow velocity, and the dust and the like on the surface to be cleaned is efficiently splashed, and the dust removal efficiency is improved. The air that has collided with the surface to be cleaned further collides with the brush body 15 and the blade 16, and the rotating brush 11
Is rotated counterclockwise in FIG. Since the guide port 33 is formed at a position corresponding to both ends of the rotating brush 11,
It is possible to improve the dust removal efficiency of the portion having the weakest suction force.

Further, by sucking air from the guide port 33, it is possible to suppress the suction tool body 1 from sticking to the surface to be cleaned and improve the mobility of the suction tool body 1.

A fourth embodiment of the present invention will be described below in detail with reference to FIGS. 11 and 15. The same parts as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

Reference numeral 37 is a suction tool body, which is an upper case 38 and a lower case.
39, a lid 40 releasably engaged with the upper case 38 and the lower case 39, and a turning tube 43 composed of upper and lower members 41 and 42 rotatably supported between the upper and lower cases 38 and 39, The turning tube 43
It is composed of a joint pipe 44 which is vertically sandwiched between the upper and lower members 41 and 42.

The upper member 41 of the rotating tube 43 has a sliding member 45 slidable with respect to the upper member 41, and an engaging claw 46 formed at an end of the sliding member 45, Fitting tube 44
Is engaged with a flange portion 47 formed on the outer circumference of the opening end of the rotary pipe 43 when the joint pipe 44 is rotated upward with respect to the suction tool body 37. Fitted inside the fitting pipe
The 44 can rotate about 90 degrees with respect to the suction tool body 37.

Reference numeral 48 denotes a curved guide portion formed at the front end portion of the suction port 7 of the lower case 39. Outside air sucked from a guide port 51 described later collides with the guide portion 48 and is guided to the rotary brush 11 side. It is supposed to be done. Small wheels 49 are arranged on the lower surface of the guide portion 48.

Reference numeral 50 denotes a projecting opening formed on both sides of the front end of the lower case 39 so as to communicate with the suction port 7, and the suction port 7 extends forward of the front wheel 27, including the front wheel 27. The suction port can be formed over the entire width of the suction tool body 1, and the cleaning efficiency can be improved.

Reference numeral 51 is a guide opening formed in front of the lid 40, which is formed at a position corresponding to both ends of the rotary brush 11. Reference numeral 52 denotes a guide rib formed on the rear side of the guide opening 51 of the lid 40 so as to guide the outside air sucked from the guide opening 51 toward the guide portion 48. The lower end is extended to the rotation center position of the rotating brush 11 or below the rotation center.

The rotating brush 11 has a pair of blades 16 similar to those in the first to third embodiments, and a blade 67 formed of rubber or the like in a curved shape on the rear side in the rotation direction. ing.

53 is the protruding opening 50 in front of the lid 40.
At the inflow port formed at the position corresponding to, the dust introduced in front of the front wheel 27 is picked up by the air introduced from the inflow port 53 so that it can be guided to and sucked into the suction port 7. ing.

Reference numeral 54 designates an extension portion projectingly formed in the substantially rear central portion of the lower case 39. A rear wheel 55 is rotatably supported by a rear end portion of the extension portion 54, and a suction tool body is provided during cleaning. By supporting the lower portion of the connecting portion between the turning pipe 43 and the joint pipe 44 to which the greatest force is applied to the 37 by the rear wheel 55, it is possible to prevent the suction tool main body 37 from floating up and maintain the balance. It has become.

Reference numeral 56 is a raising member disposed on the lower surface of the extending portion 54, and the raising member 56 can wipe the floor surface when the suction tool body 37 is moved back and forth.

57 is an upper and lower case at the front of the suction tool body 37.
A bumper disposed so as to be sandwiched between 38 and 39, which is integrally formed with a flap 58 which is made of a flexible material such as soft rubber and serves as a suction key bar. A suction keeper 59 provided at the rear of the mouth 7 improves the deep suction force. A plurality of projections 60 are formed on the back surface of the flap 58 of the bumper 57, and when pulling the suction tool body 37 toward the hand side during cleaning,
The projection 59 hooks lint on the surface to be cleaned of a carpet or the like and can surely suck it.

When the joint pipe 44 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 body 37 is lifted from the surface to be cleaned, the suction port 7
Since the suction resistance from is small, most of the air is sucked in through the suction port 7. In this state, since the suction port 7 is widely opened, the flow velocity of the air sucked from the suction port 7 is relatively low, and therefore the rotary brush 11 hardly rotates.

When cleaning a floor 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, most of the air is sucked from the suction port 7, and almost no air is sucked from the guide port 51 and the inflow port 53. In this state, the air sucked from between the suction port 7 and the surface to be cleaned has a high flow velocity, so that the air sucked from the suction port 7 collides with the blades 16 and 67 of the rotating brush 11 and causes the rotating brush 11 to move. Figure 13 Rotate in the counterclockwise direction.

When cleaning the surface to be cleaned of a carpet or the like, the suction port 7 is covered by the surface to be cleaned, the suction resistance from the suction port 7 increases, and the outside air sucked from the guide port 51 and the inflow port 53 is increased. The amount increases. Since the opening area of the guide port 51 is extremely smaller than that of the suction port 7, the air sucked from the guide port 51 collides with the guide portion 48 of the lower case 39 at a high flow rate, and the guide portion 48 receives the outside air. The flow direction is changed to collide with the blades 16 and 67 of the rotary brush 11 to rotate the rotary brush 11 counterclockwise in FIG.

The air that has flowed in through the guide port 51 is the suction tool body 37.
Since it is sprayed downward and the direction is changed to the side of the rotating brush 11 by the guide portion 48, it abuts on the blades 16 and 67 located below the core body 12 of the rotating brush 11 and has a long-haired carpet, etc. It is possible to prevent the blades 16 and 67 from being caught on a carpet or the like when cleaning the brush, and to reliably rotate the rotating brush 11.

Further, like the guide port 51, the inflow port 53 is formed to have an extremely small opening area as compared with the suction port 7, so that the air sucked from the inflow port 53 has a high flow speed and the front wheel 27 has a high velocity.
Of the suction port 7 by flowing into the protruding opening 50 corresponding to the front of the front wheel 27 and winding up the dust at the position corresponding to the front of the front wheel 27.
Since the dust can be sucked in through the entire width of the suction tool main body 37, the unsucked residue can be reduced.

The guide rib 52 has its tip extending at the center of rotation of the rotary brush 11 or below the center of rotation, and the air sucked from the guide port 51 passes above the rotary brush 11 to directly rotate. The tube 43 can be prevented from being sucked and can be reliably guided to the guide portion 48, and the rotary brush 11 can be efficiently rotationally driven.

Since the guide ports 51 are formed at two positions corresponding to both ends of the rotary brush 11, the dust removal efficiency on both end sides having the weakest suction force can be improved and the blades of the rotary brush 11 can be improved. 16 and 67 are approximately 9 between both ends
Combined with the fact that it is twisted 0 degrees, the outside air always collides with two of the blades 16 and 67, so the rotating brush 11
Can be rotated smoothly.

If a guide port is formed at the front center of the suction tool body 37, the center of the suction tool body 37 is located at a position corresponding to the rotation tube 43 leading to the cleaner body. Due to the influence, the flow of the outside air sucked from the guide port 51 directly over the rotating brush 11 and directly sucked into the rotating pipe 43 is relatively likely to occur, and it is difficult to obtain a sufficient rotating force of the rotating brush 11. Guide openings at two locations corresponding to both ends of the brush 11
By forming 51, it is difficult for the outside air sucked from the guide port 51 to be directly sucked into the rotating tube 43 through the upper portion of the rotating brush 11, and a sufficient rotating force can be obtained.

The rotating pipe 43 is rotatable in the left-right direction of the suction tool body 37, and the joint pipe 44 is arranged in the upper-lower direction with respect to the rotating pipe 43. By rotating the 44 in the upward direction by about 90 degrees and rotating the rotating tube 43 by about 90 degrees, the extension tube and the flexible hose (not shown) connected to the joint tube 44 are aligned with the longitudinal direction of the suction tool body 37. The suction tool body is almost parallel and can be installed in a narrow space such as a furniture gap.
It becomes possible to enter 37, and cleaning efficiency can be improved.

The rotary brush according to another embodiment of the present invention will be described in detail with reference to FIG.
A pair of brush bodies 65 that are installed by inserting the base portion 64 into the spiral groove 63 of the core body 62, and the above-described embodiment that is installed by inserting the base portion 18 into the spiral groove 63 of the core body 62. And a pair of blades 16 similar to the above.

The brush body 65 is a relatively rigid cloth-like base.
The core 64 is sandwiched and folded, fixed by an adhesive or the like, and the fixed portion is inserted into the groove 63 of the core body 62 and mounted, and the brush planted on the free end side of the base 64. The body 65 is mounted so as to be inclined rearward with respect to the rotation direction of the rotating brush 61.

The blade 16 is formed by the same method as in the first embodiment, but is straightened so as not to bend.

In the present embodiment, the brush body 40 rises and tilts in response to the same rotational fluctuation as the blade 16 of the first embodiment described above, and maintains the rotational speed of the rotary brush 36 substantially constant. be able to.

Further, the brush body may be formed in a curved shape as in the above-mentioned embodiment, and the blade may be attached to the core body while being inclined. Further, both the brush body and the blade may be curved or may be inclined and attached to the core body.

[0081]

As described above, according to the structure of claim 1 of the present invention, a carpet or the like can be formed by introducing the outside air from the discharge port to the blade of the rotating brush without providing a turbine for driving the rotating brush. The rotary brush can be efficiently rotationally driven even during cleaning. Since the discharge ports are formed at both end portions of the suction tool body, there is an effect that the dust removal efficiency can be improved.

According to the second aspect of the present invention, 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, so that the carpet is efficiently cleaned. The rotating brush can be driven to rotate. Since the guides for guiding the outside air from the guide ports are formed at both end portions of the suction tool body, it is possible to improve the dust removal efficiency.

According to the third aspect of the present invention, the outside air is guided to the blade of the rotary brush from the guide port without providing a turbine for driving the rotary brush, so that the carpet is efficiently cleaned. The rotating brush can be driven to rotate. Since the guide ports are formed at both end portions of the suction tool body, it is possible to improve the dust removal efficiency.

According to the structure of claim 4 of the present invention, the efficiency for cleaning the carpet or the like is improved by introducing the outside air from the discharge port to the brush body of the rotating brush without providing a turbine for driving the rotating brush. The rotating brush can be well driven. Since the discharge ports are formed at both end portions of the suction tool body, there is an effect that the dust removal efficiency can be improved.

According to the structure of claim 5 of the present invention, the efficiency for cleaning a carpet or the like is improved by guiding the outside air from the guide port to the brush body of the rotating brush without providing a turbine for driving the rotating brush. The rotating brush can be well driven. Since the guides for guiding the outside air from the guide ports are formed at both end portions of the suction tool body, it is possible to improve the dust removal efficiency.

According to the structure of claim 6 of the present invention, the efficiency for cleaning a carpet or the like is improved by guiding the outside air from the guide port to the brush body of the rotating brush without providing a turbine for driving the rotating brush. The rotating brush can be well driven. Since the guide ports are formed at both end portions of the suction tool body, it is possible to improve the dust removal efficiency.

According to the structure of claim 7 of the present invention, without providing a turbine for rotationally driving the rotary brush,
Even when cleaning a carpet or the like by the outside air from the guide port, the rotary brush can be efficiently rotationally driven. Since the guide ports are formed at both ends of the suction tool body, the rotary brush can be efficiently rotated and the dust removal efficiency can be improved.

According to the structure of claim 8 of the present invention, without providing a turbine for rotationally driving the rotary brush,
Even when cleaning a carpet or the like by the outside air from the guide port, the rotary brush can be efficiently rotationally driven. Since the guide ports are formed at both ends of the suction tool body, the rotary brush can be efficiently rotated and the dust removal efficiency can be improved.

Further, since the outside air from the guide port is blown toward the guide portion and the direction is changed to the side of the rotating brush at the guide portion, the outside air abuts below the rotation center of the rotating brush and has long bristles. When cleaning a carpet or the like, the rotating brush can be prevented from being caught on the carpet or the like and can be reliably rotated.

According to the structure of claim 9 of the present invention, without providing a turbine for rotationally driving the rotary brush,
Even when cleaning a carpet or the like by the outside air from the guide port, the rotary brush can be efficiently rotationally driven. Since the guide ports are formed at both ends of the suction tool body, the rotary brush can be efficiently rotated and the dust removal efficiency can be improved.

Further, since the outside air from the guide port is efficiently blown toward the guide portion by the guide and the direction is changed to the rotating brush side at the guide portion, the outside air abuts below the rotation center of the rotating brush, When cleaning a carpet or the like having a long bristle, the rotating brush is prevented from being caught on the carpet or the like and can be reliably rotated.

According to the structure of claim 10 of the present invention, the rotary brush is efficiently rotationally driven even when cleaning a carpet or the like by the outside air from the guide port without providing a turbine for rotationally driving the rotary brush. be able to. Since the guide ports are formed at both ends of the suction tool body, the rotary brush can be efficiently rotated and the dust removal efficiency can be improved.

Further, since the outside air from the guide port is blown toward the guide portion and the direction is changed to the rotating brush side by the guiding portion, the outside air abuts below the rotation center of the rotating brush and has long bristles. When cleaning a carpet or the like, the rotating brush can be prevented from being caught on the carpet or the like and can be reliably rotated.

Further, by extending the guide to the rotation center position of the rotary brush or below the rotation center, the outside air from the guide port is prevented from passing above the rotary brush and is reliably guided toward the guide portion. Therefore, the rotating force of the rotating brush can be sufficiently obtained.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a first embodiment of the present invention.

FIG. 2 is a top view of the same.

FIG. 3 is a sectional view seen from the other direction.

FIG. 4 is a cross-sectional view showing a stopped state of the rotary brush.

FIG. 5 is a cross-sectional view showing a rotating state of the rotary brush.

FIG. 6 is a sectional view taken along line AA in FIG. 8 showing a second embodiment of the present invention.

FIG. 7 is an AA in FIG. 8 showing a cleaning state of the carpet or the like.
FIG.

FIG. 8 is a top view of the same.

FIG. 9 is a sectional view taken along line BB in FIG. 10 showing a third embodiment of the present invention.

FIG. 10 is a top view of the same.

FIG. 11 is a top view showing a fourth embodiment of the present invention.

FIG. 12 is a sectional view of the same.

FIG. 13 is a vertical sectional view of a central portion of the suction tool body.

14 is a cross-sectional view taken along the line AA in FIG.

FIG. 15 is a side view of the same.

FIG. 16 is a cross-sectional view showing another embodiment of the rotary brush of the present invention.

[Explanation of symbols]

1 Floor suction device 7 Suction port 8 rotating brush storage room 11 rotating brush 15 brush body 16 blade 20 Information Gate 21 1st rib (guide) 22 Second rib (guide) 23 Discharge port 30 information door 33 Information Gate 48 Information 51 Information Gate 52 Guide rib (guide)

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Ritsuzo Kobayashi             2-5-3 Keihan Hondori, Moriguchi City, Osaka Prefecture             Yo Denki Co., Ltd. (72) Inventor Keiichi Sato             2-5-3 Keihan Hondori, Moriguchi City, Osaka Prefecture             Yo Denki Co., Ltd. (72) Inventor Toshiyuki Fujiyoshi             2-5-3 Keihan Hondori, Moriguchi City, Osaka Prefecture             Yo Denki Co., Ltd. (72) Inventor Yoshihiro Mori             2-5-3 Keihan Hondori, Moriguchi City, Osaka Prefecture             Yo Denki Co., Ltd. F term (reference) 3B061 AA06 AA52 AD03 AD05 AF02

Claims (10)

[Claims] 1. A suction tool body having a suction port on a lower surface thereof, a rotary brush storage chamber formed in the suction tool body, and a communication with the rotary brush storage chamber at a substantially central position in the width direction of the suction tool body. A joint pipe and a rotary brush that is rotatably accommodated in the rotary brush storage chamber facing the suction port, and discharge ports that supply outside air to the blades of the rotary brush are formed at both sides of the suction tool body. The floor suction device characterized by having done. 2. A suction tool body having a suction port on the lower surface, a rotary brush storage chamber formed in the suction tool body, and a communication with the rotary brush storage chamber at a substantially central position in the width direction of the suction tool body. A joint pipe and a rotating brush that is rotatably housed in the rotating brush storage chamber facing the suction port, are provided with guide ports at both sides of the suction tool body, and rotates the outside air from the guide port. A floor suction tool characterized in that a guide for guiding the blade of the brush is formed. 3. A suction tool body having a suction port on a lower surface thereof, a rotary brush storage chamber formed in the suction tool body, and a communication with the rotary brush storage chamber at a substantially central position in the width direction of the suction tool body. A joint pipe and a rotary brush that is rotatably accommodated in the rotary brush storage chamber facing the suction port, and a guide port that supplies outside air to the blade of the rotary brush is provided at both front positions of the suction tool body. A floor suction tool characterized by being formed. 4. A suction tool body having a suction port on a lower surface thereof, a rotary brush storage chamber formed in the suction tool body, and a communication with the rotary brush storage chamber at a substantially central position in the width direction of the suction tool body. A joint pipe and a rotating brush that is rotatably housed in the rotating brush storage chamber so as to face the suction port, and a discharge port that supplies outside air to the brush body of the rotating brush is provided at both sides of the suction tool body. A floor suction tool characterized by being formed. 5. A suction tool body having a suction port on the lower surface, a rotary brush storage chamber formed in the suction tool body, and a communication with the rotary brush storage chamber at a substantially central position in the width direction of the suction tool body. A joint pipe and a rotating brush that is rotatably housed in the rotating brush storage chamber facing the suction port, are provided with guide ports at both sides of the suction tool body, and rotates the outside air from the guide port. A suction tool for a floor, characterized in that a guide for guiding the brush body is formed. 6. A suction tool body having a suction port on a lower surface, a rotary brush storage chamber formed in the suction tool body, and a communication with the rotary brush storage chamber at a substantially central position in the width direction of the suction tool body. A joint pipe and a rotary brush that is rotatably accommodated in the rotary brush storage chamber facing the suction port, and a guide port that supplies outside air to the brush body of the rotary brush at both front positions of the suction tool body. A suction device for floors, characterized in that 7. A suction tool body having a suction port on the lower surface, a rotary brush storage chamber formed in the suction tool body, and a communication with the rotary brush storage chamber at a substantially central position in the width direction of the suction tool body. A joint pipe and a rotating brush that is rotatably accommodated in the rotating brush storage chamber facing the suction port are provided. A suction tool for a floor, which is characterized in that a guide opening for guiding is provided. 8. A suction tool body having a suction port on the lower surface, a rotary brush storage chamber formed in the suction tool body, and a communication with the rotary brush storage chamber at a substantially central position in the width direction of the suction tool body. A guide that includes a joint pipe and a rotating brush that is rotatably housed in the rotating brush storage chamber facing the suction port, and guides outside air to the lower side of the suction tool body at both front positions of the suction tool body. A floor suction device characterized by forming a mouth and forming a guide portion for guiding the outside air from the guide port toward the rotary brush at the lower part of the suction tool body. 9. A suction tool body having a suction port on the lower surface, a rotary brush storage chamber formed in the suction tool body, and a communication with the rotary brush storage chamber at a substantially central position in the width direction of the suction tool body. A guide that includes a joint pipe and a rotating brush that is rotatably housed in the rotating brush storage chamber facing the suction port, and guides outside air to the lower side of the suction tool body at both front positions of the suction tool body. A guide part is formed in the lower part of the suction tool body for guiding the outside air from the guide port toward the rotating brush, and the outside air from the guide port is directed to the guide part behind the guide port. A suction tool for floor, which is characterized in that a guide for guiding is provided. 10. A suction tool body having a suction port on a lower surface,
A rotary brush storage chamber formed in the suction tool body, a joint pipe communicating with the rotary brush storage chamber at a substantially central position in the width direction of the suction tool body, and a rotary brush storage chamber facing the suction port. With a rotating brush that is rotatably stored,
Guide ports for guiding outside air toward the lower part of the suction tool body are formed at both front positions of the suction tool body, and guides for guiding the outside air from the guide port to the rotating brush are provided at the lower part of the suction tool body. And a guide for guiding the outside air from the guide port toward the guide part is formed at the rear of the guide port, and the guide is extended to the rotation center of the rotating brush or below the rotation center. A suction tool for the floor.