JP3574115B2 - Floor suction device - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an improvement in a floor suction tool used in connection with a vacuum cleaner.
[0002]
[Prior art]
Heretofore, as this type of floor suction device, there has been known a 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.
[0003]
In the case where the rotary brush is driven to rotate by an electric motor, the motor has a heavy weight, is inferior in handling, has a complicated structure, increases the number of parts, and has a drawback such as poor assembly workability.
[0004]
Further, when the rotating brush is rotationally 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, and is configured to rotate by air sucked together with dust. Therefore, there has been a problem that dust and the like are entangled in the turbine over a long period of use and the turbine cannot rotate properly.
[0005]
Therefore, in order to solve the above-mentioned drawback, turbines are arranged 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 to cool the turbines. A device has been proposed in which the air is rotated and the air is sucked into a vacuum cleaner together with the air sucked from a suction port.
[0006]
However, in this configuration, it is necessary to dispose turbines on both sides of the rotating brush, and the number of parts increases, and a large amount of outside air is sucked to rotate the turbine, so that dust suction characteristics may deteriorate. It is necessary to efficiently rotate the turbine with a small amount of outside air so that the turbine shape is complicated. 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]
[Problems to be solved by the invention]
SUMMARY OF THE INVENTION The present invention has been made in view of the above-described drawbacks, and an intake port for guiding the outside air to a blade or a brush to rotate a rotating brush is formed separately from the intake port, and the intake port is freely openable and closable. It is an object of the present invention to provide a floor suction tool that can efficiently rotate and rotate a rotating brush with a simple configuration, by providing a closing body that closes down and opens a suction port with a decrease in pressure in a rotating brush storage chamber .
[0008]
[Means for Solving the Problems]
The first means of the present invention comprises 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 rotary brush having a blade freely disposed therein and having an outer periphery provided with a blade, wherein the suction tool main body has a guide opening for guiding outside air to the blade, and a closing body for closing the guide opening so as to be able to open and close. It is characterized by having been provided.
[0009]
The second means of the present invention includes 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 having a brush body disposed on the outer periphery of the suction tool body, and a guide port for guiding outside air to the brush body is formed in the suction tool main body, and the guide port is openably and closably closed. It is characterized by having a body.
[0010]
It is preferable that the closing member is opened according to the degree of vacuum in the rotating brush storage chamber.
[0011]
It is preferable that the guide port is formed separately from the suction port.
[0012]
It is preferable that the guide port is formed at a position forward of the core of the rotating brush.
[0013]
It is preferable that the blade is spirally disposed on the core of the rotating brush.
[0014]
It is preferable that the brush body is spirally disposed on the core of the rotating brush.
[0015]
It is preferable that the guide port is formed over substantially the entire width of the rotating brush.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
A first embodiment of the present invention will be described below in detail with reference to FIGS.
[0017]
Reference numeral 1 denotes a suction tool main body formed in a substantially cylindrical shape. The suction tool body 2 has a suction port 2 formed on a lower surface, and forms a rotary brush storage chamber 3 in which a rotary brush 8 described later is stored. Are formed in an arc shape along the rotation locus of the rotating brush 8. Reference numeral 4 denotes an end plate for closing both end openings of the suction tool main body 1, and a shaft support 6 for rotatably supporting a wheel 5 is formed, and a predetermined portion 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.
[0018]
Reference numeral 8 denotes a rotary brush which is rotatably supported by the support plate 7 in a state facing the suction port 2 and is disposed in the rotary brush storage chamber 3. The rotary brush 8 includes a core 9 and a core. A pair of brush bodies 12 inserted into the spiral groove 10 formed in the body 9 by inserting the base 11 and a pair of blades inserted into the spiral groove 10 of the core 9 by inserting the base 15 13.
[0019]
The blade 13 includes a cloth 14, a base 15 made of synthetic resin molded at an end of the cloth 14, and a brush 16 sewn to the other end of the cloth 14. The blade 13 sewes the brush-like body 16 to the cloth-like body 14 so that the cloth-like body 14 is bent. 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.
[0020]
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. As shown in FIG. 4, an upright state is established by the force, and the diameter of the rotation trajectory in the upright state is formed to be larger than the diameter of the rotation trajectory of the brush body 12. 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.
[0021]
Reference numeral 17 denotes a guide port formed in the suction tool main body 1 in the longitudinal direction, and guides outside air toward the brush body 12 and the blade 13.
[0022]
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.
[0023]
When the joint pipe 18 is connected to the cleaner body via the flexible hose and the 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, and therefore, the rotating brush 8 hardly rotates.
[0024]
When cleaning floors such as flooring and tatami mats, the distance between the surface to be cleaned and the suction port 2 is relatively wide, so the suction resistance from the suction port 2 is small, and most of the air is sucked from the suction port 2. Thus, almost no air is sucked from the guide port 17. In this state, since the air sucked from the space between the suction port 2 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 of the rotary brush 8. Then, the rotating brush 8 is rotated counterclockwise in FIG.
[0025]
As shown in FIG. 3, the blade 13 is curved rearward in the rotation direction of the rotating brush 8 when the rotating brush 8 is stopped and is rotating at a low speed, so that the air sucked from the suction port 2 and the guide port 17 And the rotating brush 8 is easily rotated.
[0026]
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.
[0027]
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 to rotate the rotating brush 8 in a counterclockwise direction in FIG. It is possible to suppress sticking to a carpet or the like and improve the mobility of the suction tool main body 1.
[0028]
When cleaning a carpet or the like, the surface to be cleaned becomes a resistance and the rotation of the rotating brush 8 is reduced. However, when the rotation of the rotating brush 8 is reduced, the blade 13 is gradually stopped with a decrease in centrifugal force. It is curved in the rotation direction so as to restore the shape of the time, the contact resistance with the surface to be cleaned is reduced, and the rotation speed of the rotating brush 8 is increased. By repeating this operation, the rotation speed of the rotating brush 8 is maintained substantially constant.
[0029]
Since the blade 13 is formed by sewing the brush-like body 15 to the cloth-like body 14, the blade 13 can be configured to be easily bent, and the blade 13 is easily lifted by centrifugal force using the brush-like body 15 as a weight. The blade 13 can be raised and curved even by a slight change in the rotation speed of the rotating brush 8, and the rotation speed of the rotating brush 8 can be maintained substantially constant.
[0030]
Next, a second embodiment of the present invention will be described in detail below with reference to FIGS. The same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.
[0031]
Reference numeral 21 denotes a suction tool main body, an upper case 22, a lower case 23, a cover 24 covering a part of the upper surface of the upper case 22, and a rotating tube 25 supported between the upper and lower cases 22, 23 so as to be vertically movable. And a joint tube 26 rotatably supported by the rotating tube 25. Reference numeral 27 denotes a suction port formed in the lower surface of the suction tool main body 21, and reference numeral 28 denotes a rotary brush storage chamber formed inside the suction tool main body 21, and a rotary brush 8 similar to that of the first embodiment is used when rotating. Is stored in.
[0032]
29 is a guide opening formed in the width direction of the upper case 22, 30 is an intake opening formed in the cover body 24, 31 is a closing body for closing the intake opening 30, and cleans a surface to be cleaned such as a carpet. When the suction port 27 is closed by the surface to be cleaned, for example, when the pressure in the rotary brush storage chamber 28 decreases, the air is deformed toward the rotary brush storage chamber 28 side, and the outside air sucked from the suction port 30 is removed. The outside air is caused to collide with the brush body 12 and the blade 13 of the rotating brush 8 via the guide port 29.
[0033]
Reference numeral 32 denotes a suction keeper disposed before and after the suction port 27 of the suction tool main body 21. The suction keeper is formed of a flexible material such as soft rubber, and the suction keeper 32 improves the deep suction force. I have. A rear wheel 33 is rotatably supported by a rear portion of the suction tool main body 21.
[0034]
According to the second embodiment of the present invention, on a surface to be cleaned such as a flooring or a tatami mat, the suction resistance from the suction port 27 is small, and the amount of suction from the suction port 27 is large. The internal pressure does not become a large negative pressure. Therefore, the closing body 31 arranged in the intake port 30 does not deform and open the intake port 30. In this state, the air sucked from the suction port 27 collides with the brush body 12 and the blade 13 of the rotating brush 8 and drives the rotating brush 8 to rotate.
[0035]
Further, when cleaning the surface to be cleaned such as a carpet or the like, the surface to be cleaned closes the suction port 27, so that the pressure in the rotating brush storage chamber 28 decreases, and the closing body 31 is moved toward the rotating brush storage chamber 28 side. , And the outside air sucked in through the suction port 30 and the guide port 29 collides with the brush body 12 and the blade 13 to drive the rotating brush 8 to rotate.
[0036]
In the present embodiment, the closing body 31 is provided at the intake port 30, but the closing body 31 may be provided at the intake port 29. In this case, the cover 24 may be omitted.
[0037]
In each of the first and second embodiments, the guide ports 17 and 29 are formed to be horizontally long in the width direction of the suction tool bodies 1 and 21, but in this configuration, the suction tool bodies 1 and 21 are formed. In particular, when cleaning a carpet or the like, the peripheral edges of the guide openings 17 and 29 are deformed toward the rotating brush storage chambers 3 and 28 and come into contact with the brush body 12 and the blade 13 of the rotating brush 8, and Since there is a possibility that the rotational force may decrease, a number of small holes may be formed in the width direction of the suction tool main body as the guide ports.
[0038]
【The invention's effect】
As described above, according to the configuration of the first aspect of the present invention, the suction tool main body is formed with the suction port for guiding the outside air to the blade and rotating the rotary brush separately from the suction port, and the suction port is opened and closed. By providing a closing member that freely closes and opens the suction port with a decrease in pressure in the rotating brush storage chamber, when cleaning a carpet or the like, the suction port opened due to the deformation of the closing member to the blade of the rotating brush. By introducing the outside air, there is an effect that the outside air is received by the blade and the rotation brush can be efficiently rotated without providing a turbine for driving the rotating brush.
[0039]
According to the configuration of the second aspect of the present invention, the suction tool main body is formed with an air inlet for guiding the outside air to the brush body to rotate the rotary brush, and the air inlet is opened and closed so as to be openable and closable. By providing a closing body that opens the intake port with the pressure drop, during cleaning of a carpet, etc., the outside air is guided from the intake port opened due to the deformation of the closing body to the brush body of the rotating brush, thereby rotating the carpet. There is an effect that the rotary brush can be efficiently rotated and driven by receiving external air with the brush body without providing a turbine for driving the brush.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a first embodiment of the present invention.
FIG. 2 is a cross-sectional view seen from another direction.
FIG. 3 is a sectional view of the rotating brush when the rotating brush is stopped.
FIG. 4 is a cross-sectional view of the rotating brush when the rotating brush is rotating.
FIG. 5 is a top view of the floor suction tool.
FIG. 6 is a front view of the floor suction tool.
FIG. 7 is a sectional view showing a second embodiment of the present invention.
FIG. 8 is an enlarged sectional view of the main part.
FIG. 9 is a cross-sectional view as viewed from another direction.
FIG. 10 is a top view of the floor suction tool.
FIG. 11 is a front view of the floor suction tool.
FIG. 12 is a bottom view of the floor suction tool.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Suction tool main body 2 Suction port 3 Rotary brush storage chamber 8 Rotary brush 12 Brush body 13 Blade 17 Guide port 21 Suction tool main body 27 Suction port 28 Rotary brush storage chamber 29 Guide port 30 Suction port 31 Closed body

Claims (6)

A suction tool 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 rotating brush storage chamber in a state facing the suction port, and a blade on the outer periphery. and a rotating brush which is disposed, in the suction tool body, an inlet for guiding the outside air to the blades to collide with the external air to the blades to rotate the rotary brush along with the suction port is formed separately from the inlet port Characterized in that a closing member is provided so as to be able to open and close freely, and a closing member is provided to open an intake port with a decrease in pressure in the rotating brush storage chamber . 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 rotatable brush storage chamber that faces the suction port and is rotatably stored in the rotary brush storage chamber; A rotary brush provided with the suction tool main body, and the suction tool main body is formed separately from the suction port, and an intake port for guiding the outside air to the brush body and causing the outside air to collide with the brush body to rotate the rotary brush , floor suction tool which is characterized by providing a closure for opening the air inlet with the pressure drop of the rotating brush accommodating chamber is openably closed the intake port. 3. The floor suction tool according to claim 1, wherein the suction port is formed at a position forward of a core of the rotary brush. 2. The floor suction tool according to claim 1, wherein the blade is spirally disposed on a core of the rotating brush. The floor suction device according to claim 2, wherein the brush body is spirally disposed on a core of the rotating brush. 3. The floor suction tool according to claim 1, wherein the suction port is formed over substantially the entire width of the rotary brush.

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