JPH11123167A - Suction appliance for floor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a suction appliance for a floor capable of efficiently rotating and driving a rotary brush with simple constitution. SOLUTION: The rotary brush 8 is provided with a pair of brush bodies 12 not to be abutted to a floor surface and a pair of blades 13 provided with flexibility to be erected by the centrifugal force of the rotary brush and abutted to the floor surface. The rotary brush is driven by guiding outdoor air from a guide port 17 provided on a suction appliance main body.

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 connected to a vacuum cleaner.

[0002]

2. Description of the Related Art Heretofore, 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 main body and the rotary brush is rotationally driven by an electric motor or a turbine.

[0003] The rotating brush driven by an electric motor has the drawbacks that the electric motor is heavy, the handling is poor, the structure is complicated, the number of parts is increased, and the assembling workability is poor.

[0004] When the rotary brush is driven to rotate by a turbine, the turbine is disposed in a turbine chamber formed in a suction passage from a suction port to a cleaner body, and is rotated by air sucked together with dust. Due to the configuration, there is a problem that dust or the like is entangled in the turbine over a long period of use and the turbine does not rotate properly.

Therefore, in order to solve the above-mentioned drawback, turbines are disposed at both ends of a rotating brush in Japanese Patent Application Laid-Open No. 9-28630 (A47L 9/04) or the like, and external clean air is supplied to the turbines. In this case, a turbine is rotated, and the air is sucked into a vacuum cleaner together with the air sucked from a suction port.

However, in this configuration, it is necessary to dispose turbines at both ends of the rotating brush, and the number of parts increases, and a large amount of outside air is sucked to rotate the turbine, thereby deteriorating dust suction characteristics. It is necessary to rotate the turbine with a small amount of outside air so as not to perform the cleaning operation. Therefore, there is a problem that the rotating force is weak and a good rotating force cannot be obtained when cleaning a surface to be cleaned having a large resistance such as a carpet.
In addition, a suction port cannot be formed on the lower surface of the turbine storage chamber, and the suction port becomes small with respect to the width of the suction tool main body.

[0007]

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

[0008]

SUMMARY OF THE INVENTION The present invention provides a suction tool body having a suction port on a lower surface, a rotating brush storage chamber formed in the suction tool body, and a rotary brush facing the suction port. A rotatable brush rotatably housed in a storage chamber and having wings disposed on the outer periphery thereof, and a guide port for guiding outside air toward the wings of the rotary brush is formed in the suction tool main body; The blade of the rotary brush is characterized by comprising a pair of first blades that do not contact the surface to be cleaned and a pair of second blades that have flexibility to contact the surface to be cleaned.

Further, according to 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 rotating brush, which is freely housed and has wings disposed on the outer periphery thereof, wherein a guide port for guiding outside air toward the wings of the rotating brush is formed in the suction tool body, and the wings of the rotating brush are formed. The piece comprises a pair of first blades that do not contact the surface to be cleaned, and a pair of second blades that have flexibility to contact the surface to be cleaned. It is characterized by being curved backward.

Further, according to 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 rotating brush storage chamber facing the suction port. A rotating brush, which is freely stored and has wings arranged on the outer periphery thereof, and a guide port for guiding outside air toward the wings of the rotating brush is formed in the suction tool main body;
The blade of the rotating brush includes a pair of first blades that do not contact the surface to be cleaned and a pair of second blades that have flexibility to contact the surface to be cleaned. It is characterized in that the part is formed of a non-breathable member.

[0011]

FIG. 1 shows a first embodiment of the present invention.
This will be described in detail below with reference to FIG.

1 is a suction tool main body formed in a substantially cylindrical shape.
A suction port 2 is formed on the lower surface, and a rotation brush storage chamber 3 in which a rotation brush 8 described later is stored is formed. The rotation brush storage chamber 3 is formed in an arc shape along the rotation locus of the rotation brush 8. ing. Reference numeral 4 denotes an end plate for closing both end openings of the suction tool main body 1, which is provided with a shaft support 6 for rotatably supporting a wheel 5, and which is provided between the suction port 2 and the surface to be cleaned by the wheel 5. Are formed. Reference numeral 7 denotes a support plate fixed to the end plate 4.

Reference numeral 8 denotes a rotary brush which is rotatably supported by a support plate 7 in a state facing the suction port 2 and is disposed in the rotary brush storage chamber 3. And a pair of brush bodies 12 to be mounted by inserting the base 11 into the spiral groove 10 formed in the core 9, and to be mounted by inserting the base 15 into the spiral groove 10 of the core 9. It comprises a pair of blades 13.

The blade 13 is made of a cloth 14 having poor air permeability.
And a base 15 formed by molding a synthetic resin at the end of the cloth-like body 14, and a brush-like body 16 sewn to the other end of the cloth-like body 14, and the blade 13 is made of cloth. By sewing the brush-like body 16 to the body 14, the cloth-like body 14 is pulled and curved. The blade 13 is mounted on the core body 9 so as to be curved backward with respect to the rotation direction of the rotating brush 8.

When the rotation of the rotating brush 8 is stopped, the blade 13 is curved backward with respect to the rotating direction of the rotating brush 8 as shown in FIG.
When the blade rotates, the centrifugal force caused by the rotation causes the blade 13 to be in an upright state, and the diameter of the rotation locus of the blade 13 in the upright state is larger than the diameter of the rotation locus of the brush body 12 as shown in FIG. Is formed. Further, when the rotary brush 8 is stopped, the brush body 12 and the blade 13 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 17 denotes a guide port formed in the suction tool main body 1 in a longitudinal direction so as to guide external air toward the brush body 12 and the blade 13.

Reference numeral 18 denotes a joint pipe rotatably connected to the suction tool main body 1, which is detachably connected to a cleaner body (not shown) via a flexible hose and an extension pipe.

When the joint pipe 18 is connected to the cleaner body via a flexible hose and an extension pipe, and the cleaner body is driven, air is sucked from the suction port 2. When the suction tool main body 1 is raised from the surface to be cleaned, most of the air is sucked from the suction port 2 because the suction resistance from the suction port 2 is small. In this state, since the suction port 2 is largely open, the flow velocity of the air sucked from the suction port 2 is relatively low,
Therefore, the rotating brush 8 hardly rotates.

When cleaning floors such as flooring, tatami mats, etc., since the distance between the surface to be cleaned and the suction port 2 is relatively wide, the suction resistance from the suction port 2 is small, and most of the suction resistance from the suction port 2 is small. Air is sucked in, and almost no air is sucked in from the guide port 17. In this state, the suction port 2
Since the air sucked from the space between the cleaning brush and the surface to be cleaned has a high flow velocity, the air sucked from the suction port 2 and the air sucked from the guide port 17 are removed by the brush body 12 and the blade 13 of the rotating brush 8.
To rotate the rotating brush 8 counterclockwise in FIG.

As shown in FIG. 1, the blade 13 is curved rearward with respect to the rotation direction of the rotary brush 8 when the rotary brush 8 is stopped and is rotating at a low speed, so that the blade 13 is sucked from the suction port 2 and the guide port 17. Thus, the rotating brush 8 is easily rotated.

When the rotating brush 8 rotates at a high speed, the blade
13 is erected by the centrifugal force as shown in FIG. When the suction tool main body 1 is placed on the floor or the tatami in the upright state of the blade 13, the blade 13 comes into contact with the floor or the tatami, and the floor and the tatami are cleaned. Since the blade 13 uses the flexible cloth-like body 14, even if it comes into contact with the floor surface or the tatami mat, the floor surface or the tatami mat is not damaged.

When cleaning a carpet or the like, the suction port 2 is covered with the carpet, the suction resistance from the suction port 2 increases, and the amount of air sucked from the guide port 17 increases. The air sucked from the guide port 17 collides with the brush body 12 and the blade 13,
While rotating the rotating brush 8 counterclockwise in FIG.
By sucking air from the guide port 17, the suction tool main body 1 can be prevented from sticking to a carpet or the like, 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 of the rotating brush 8 is reduced. It gradually bends in the rotation direction so as to gradually restore the shape at the time of stop, the contact resistance with the surface to be cleaned decreases, and the rotation speed of the rotating brush 8 increases. By repeating this operation, the rotation speed of the rotating brush 8 is maintained substantially constant.

Since the blade 13 is formed by sewing the brush-like body 15 to the cloth-like body 14, the blade 13 can be easily bent, and the blade 13 can be bent by centrifugal force using the brush-like body 15 as a weight. The blade 13 can be easily erected, and the blade 13 can be erected and curved even by a slight change in the number of rotations of the rotating brush 8.
Can be maintained substantially constant.

When the rotating brush 8 rotates, the blade 13 comes into contact with the surface to be cleaned to polish and clean the surface to be cleaned. Only one pair (two) of the blades 13 is disposed on the core 9 of the rotating brush 8. In this case, the efficiency of receiving air from the guide port 17 is low, and the torque of the rotating brush 8 becomes insufficient. Therefore, it is necessary to increase the number of blades in order to obtain sufficient torque of the rotating brush 8.

Also, if the number of blades 13 standing up and coming into contact with the surface to be cleaned by the centrifugal force at the time of rotation of the rotary brush 8 is increased, the resistance to the surface to be cleaned increases, and the rotational force of the rotary brush is reduced. Would.

Accordingly, the blade 13 and the brush body 12
By using the type, it is possible to sufficiently obtain the rotating torque of the rotating brush 8 while obtaining the effect of polishing the surface to be cleaned, and to suppress a decrease in the rotating force of the rotating brush 8.

Further, since the blade 13 is curved rearward in the rotation direction of the rotary brush 8, the blade 13 can receive air from the guide port 17 efficiently and a sufficient rotation torque can be obtained.

Further, the blade 13 is a hardly breathable cloth-like body,
Since it is composed of the base portion and the brush-like body, the air from the guide port 17 can be received more efficiently, and the rotational torque can be further obtained.

In the above embodiment, the blade is
Although the cloth-like body, the base and the brush-like body are used, they may be integrally formed of a soft material such as soft rubber.

Next, a rotary brush 36 according to another embodiment of the present invention will be described in detail with reference to FIG.
The core body 37, a pair of brush bodies 40 to be inserted and mounted on the spiral groove 38 of the core body 37, and the base 15 inserted and mounted on the spiral groove 38 of the core body 37. It is composed of a pair of blades 13 similar to those in the above-described embodiment. The blade
13 corrects the cloth body 14 so as not to bend.

The brush body 40 is a relatively hard cloth-like base.
The core 39 is folded by sandwiching the core 41, fixed with an adhesive or the like, and the fixed part is inserted into the groove 38 of the core body 37 and mounted, and is implanted on the free end side of the base 39. The brush body 40 is inclined rearward with respect to the rotation direction of the rotating brush 36.

In the rotating brush 36 of the present embodiment,
The brush body 40 rises and tilts in accordance with the rotation fluctuation similarly to the blade 13 of the above-described embodiment, so that the rotation speed of the rotating brush 36 can be maintained substantially constant,
The diameter of the rotation trajectory of the blade 13 is formed larger than the diameter of the rotation trajectory of the brush body 40 in the regulated state. Further, when the rotary brush 8 is stopped, the brush body 12 and the blade 13 are formed so as not to contact the floor surface even when the suction tool main body 1 is placed on the floor surface.

The blade 13 comes into contact with the surface to be cleaned when the rotary brush 8 rotates, and cleans the surface to be cleaned. However, only one pair (two) of the blades 13 is provided on the core 9 of the rotary brush 8. In this case, the efficiency of receiving air from the guide port 17 is low, and the torque of the rotating brush 8 becomes insufficient. Therefore, it is necessary to increase the number of blades in order to obtain sufficient torque of the rotating brush 8.

Also, if the number of blades 13 which stand up due to the centrifugal force at the time of rotation of the rotating brush 8 and comes into contact with the surface to be cleaned is increased, the resistance to the surface to be cleaned is increased, and the rotating force of the rotating brush is reduced. Would.

Therefore, the blade 13 and the brush body 12
By using the type, it is possible to sufficiently obtain the rotating torque of the rotating brush 8 while obtaining the effect of polishing the surface to be cleaned, and to suppress a decrease in the rotating force of the rotating brush 8.

Further, the brush body may be formed to be curved in the same manner as in the above embodiment, or the blade may be mounted at an angle. Further, both the brush body and the blade may be mounted in a curved or inclined manner.

[0038]

According to the first aspect of the present invention, cleaning of carpets and the like is performed by introducing outside air from the guide port to the blades of the rotating brush without providing a turbine for driving the rotating brush. And the pair of first blades that do not contact the surface to be cleaned and the pair of second blades that have flexibility to contact the surface to be cleaned. With this configuration, a sufficient rotating torque of the rotating brush can be obtained while obtaining a polishing effect on the surface to be cleaned.

According to the configuration of 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 even when cleaning a carpet or the like. The rotary brush can be driven to rotate efficiently, and the wings are formed from a pair of first blades that do not contact the surface to be cleaned and a pair of second blades that have flexibility to contact the surface to be cleaned. By configuring
A sufficient rotating torque of the rotating brush can be obtained while obtaining the effect of polishing the surface to be cleaned.

Further, by bending the second blade backward with respect to the rotation direction, it is possible to efficiently receive outside air from the guide port and obtain a larger rotation force.

According to the third aspect of the present invention, the outside air is guided from the guide port to the wings of the rotating brush without providing a turbine for driving the rotating brush. The brush can be driven to rotate, and the wings are composed of a pair of first blades that do not contact the surface to be cleaned and a pair of second blades that have flexibility to contact the surface to be cleaned. Thus, the rotating torque of the rotating brush can be sufficiently obtained while obtaining the effect of polishing the surface to be cleaned.

Further, by forming at least a part of the second blade with the air-impermeable member, it is possible to efficiently receive the outside air from the guide port and obtain a larger rotational force.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a rotary brush showing a stopped state according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view of the rotating brush showing the rotating state.

FIG. 3 is a sectional view of the floor suction tool.

FIG. 4 is a cross-sectional view as seen from the other direction.

FIG. 5 is a top view of the same.

FIG. 6 is a front view of the same.

FIG. 7 is a cross-sectional view showing a rotary brush according to another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Suction implement main body 2 Suction port 3 Rotary brush storage room 8 Rotary brush 9 Core body 12 Brush body (First blade) 13 Blade (Second blade) 17 Guide port 36 Rotating brush 37 Core body 40 Brush body (Second body) Blade)

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Keiichi Sato 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Inventor Toshiyuki Fujiyoshi 2-chome, Keihanhondori, Moriguchi-shi, Osaka No. 5 Sanyo Electric Co., Ltd. (72) Inventor Yoshihiro Mori 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd.

Claims (3)

[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 wings arranged on the outer periphery thereof, and a guide port for guiding outside air toward the wings of the rotary brush is formed in the suction tool body, and the wings of the rotary brush are covered with A floor suction tool comprising a pair of first blades that do not contact a cleaning surface and a pair of flexible second blades that contact a surface to be cleaned. 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 wings arranged on the outer periphery thereof, and a guide port for guiding outside air toward the wings of the rotary brush is formed in the suction tool body, and the wings of the rotary brush are covered with A pair of first blades that do not contact the cleaning surface and a pair of second blades that have flexibility to contact the surface to be cleaned, and the second blade is located on the rear side in the rotation direction of the rotating brush. A floor suction tool characterized by having a curved shape. 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 rotary brush having wings arranged on the outer periphery thereof, and a guide port for guiding outside air toward the wings of the rotary brush is formed in the suction tool body, and the wings of the rotary brush are covered with Consisting of a pair of first blades that do not contact the cleaning surface and a pair of flexible second blades that contact the surface to be cleaned, at least a portion of the second blade is formed of an air-impermeable member. A floor suction device characterized by the following.