JP2003033306A - Sucking instrument for floor for vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sucking instrument for floor, which is capable of improv ing an efficiency of collecting dust incapable of being sucked into a suction opening, by effectively collecting dust to its center part to make it easier for suction. SOLUTION: This invention comprises a sucking instrument body 1 with a suction opening 7 arranged on the lower surface, a brushy material (floor- polishing brush 18) arranged along the rear side of the bottom surface of the suction opening 7 in the length direction, and the brushy material is so formed as to open in the state of nearly a circular or V shape toward the suction opening 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor suction tool for an electric vacuum cleaner, and more particularly to improving dust collection efficiency thereof.

[0002]

2. Description of the Related Art A floor suction tool for an electric vacuum cleaner is detachably connected to a cleaner main body having an electric blower and a dust collecting chamber inside via a hose and an extension pipe.

Conventionally, for example, as disclosed in Japanese Utility Model Publication No. 2-10971 (A47L 9/04), a brush-like member is arranged in the longitudinal direction on the rear bottom surface of the suction port of the floor suction tool. It has been known. In addition to the function of polishing flooring floors, etc., this brush-like member has a sealing function to prevent a large amount of air from being sucked from the rear side into the suction port and a decrease in suction power, and a suction port when advancing floor cleaning. It has a function to improve dust collection efficiency, such as a function to bounce dust that could not be sucked forward.

Further, as a means for improving the dust collection efficiency on the carpet, there is a thread take-up brush generally called an etiquette brush, and when this is arranged on the rear bottom surface of the suction port, the thread on the carpet is moved forward. The waste is caught by catching it, and when it goes backward, it comes into contact with the carpet surface to be separated and sucked from the suction port.

[0005]

However, since the brush-like members provided in the conventional floor suction tool are arranged linearly as shown in the above publication, dust is liable to be generated by the brush-like members. Even if they were swept up, there was a problem that they would spill again while moving because they were straight.

Further, a space of at least the bristle length of the brush-like member is required between the brush-like member and the thread take-up brush (etiquette brush). That is, since the thread take-up brush separates the captured lint by contacting the carpet surface, if the brush-like member falls over and overlaps with the thread take-up brush that traps the lint, it cannot contact the carpet surface. The lint cannot be removed. Even if they do not overlap, if the floor brush falls down near the thread take-up brush, it pushes down on the carpet surface, and the thread take-up brush floats above the carpet surface, making it impossible to remove lint. There is a need to.

Therefore, the present invention has been made in order to solve such a problem, and is for a floor that can efficiently collect dust that could not be sucked in through the suction port in the central portion to facilitate suction and improve dust collection efficiency. The purpose is to provide a suction tool.

It is another object of the present invention to provide a floor suction tool which can maintain the thread take-up performance of the thread take-up brush even if the thread take-up brush and the brush-like member are arranged close to each other.

[0009]

In order to achieve the above object, the present invention is directed to a suction tool body having a suction port on a lower surface thereof, and a brush disposed longitudinally on a rear bottom surface of the suction port. It is characterized in that the brush-shaped member is formed in a shape that is opened in a substantially arc shape toward the suction port.

Further, a suction tool body having a suction port on the lower surface and a brush-shaped member disposed longitudinally on the rear bottom surface of the suction port are provided, and the brush-shaped member is substantially V-shaped toward the suction port. It is characterized in that it is formed in an open shape.

Further, a front wheel is arranged in a space formed between a rear edge of the suction port and the brush-like member.

Further, the lint on the carpet is caught by catching it in the space formed between the rear edge of the suction port and the brush-like member, and is separated by coming into contact with the carpet surface when moving backward. The present invention is characterized in that a thread take-up brush for sucking through the suction port is arranged.

Further, the brush-like member is composed of a floor polishing brush.

Further, the brush-like member is composed of a floor polishing brush, and a groove portion is formed between the floor polishing brush and the thread take-up brush so that the floor polishing brush, which falls forward when moving backward, falls into the groove portion. It is characterized by doing so.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

1 to 8 are configuration diagrams showing an embodiment in which the present invention is applied to a floor suction tool used in an exhaust gas recirculation type vacuum cleaner, and the suction tool body 1 of the present embodiment is As shown in FIG. 4, an upper case 2, a lower case 3, a lid 4 which is detachably attached to the upper and lower cases 2 and 3, and a rotatable member which is rotatably supported in the circumferential direction between the upper and lower cases 2 and 3. A moving pipe 5 and a connecting pipe 6 supported by the rotating pipe 4 so as to be rotatable in the vertical direction. The connecting pipe 6 is connected to a hose or an extension pipe connected to a cleaner body (not shown). used. An exhaust gas recirculation passage 6b is formed in the connecting pipe 6 together with the intake passage 6a.

A suction port 7 opening in the longitudinal direction is formed on the front side of the lower surface of the suction tool body 1, and a rotary brush storage chamber 8 formed by being connected to the lower case 3 is formed above the suction port 7 as shown in FIG. It is provided. In the rotary brush storage chamber 8, two types of brush bodies 9a and blades 9a, which are long and short, and a core body 10 are provided.
A rotating brush 11 spirally attached to the above is rotatably accommodated in a state of facing the suction port 7.

An exhaust gas recirculation passage 12 communicating with the exhaust gas recirculation passage 6b of the connecting pipe 6 is formed between the rotary brush storage chamber 8 and the lid 4. The lid 4 and the top plate of the rotary brush storage chamber 8 are formed with intake holes 4a and 8a, respectively, and the outside air blown to the front side of the rotary brush storage chamber 8 through the intake holes 4a and 8a. And the recirculated exhaust gas hit the brush body 9a and the blade 9b of the rotary brush 11, whereby the rotary brush 11 rotates counterclockwise as indicated by an arrow in FIGS. 4 and 5 (forward rotation with respect to the forward direction of the floor suction tool). It is designed to be driven to rotate.

Further, as shown in FIGS. 7 and 8, bearing portions 16 are attached to both ends 15 of the rotary shaft of the rotary brush 11, and both bearing portions 16 are formed on both sides of the lower case 3. It is configured to be mounted on the mounted mounting portion 17.

Further, as shown in FIG. 1, on the rear bottom surface of the suction port 7, a floor polishing brush (brush-shaped member) 1 opened in a substantially arc shape toward the suction port 7 over the longitudinal direction of the suction port 7.
In addition to the function of polishing the flooring floor, etc., the floor polishing brush 18 has a sealing function to prevent a large amount of air from being sucked into the suction port 7 from the rear side and a suction force to be reduced, and a forward movement. It has a function to improve dust collection efficiency, such as a function to bounce dust that could not be sucked forward. Further, by making it substantially arcuate, the dust D that could not be sucked in when moving forward as shown in FIGS.
By hitting 8 and bouncing back toward the center of the inside, it is guided to the central portion where the suction force is strong, so that the suction is facilitated. In addition to the substantially arcuate shape, the same function and effect can be obtained by forming the shape so as to open in a substantially V shape toward the suction port 7.

Further, in this embodiment, since the rotary brush 11 is arranged as far forward as possible without impairing the original performance of the floor suction tool, the conventional case is used for the main body case composed of the upper case 2 and the lower case 3. Such a front wall having a sled shape over the longitudinal direction of the suction port is not provided, and an alternative front wall is formed by the bumper 20 and the sled shape front wall 22 provided only in the central portion. ing. The bumper 20 is attached from the front surface to both side surfaces, and has a fin portion 21 formed of an elastic body (soft vinyl chloride or the like) hanging toward the surface to be cleaned on the front surface side. Further, the sled-shaped front wall 22 provided in the central portion is formed into a sled shape by extending only the central portion of the front wall of the rotary brush storage chamber 8 formed by being connected to the lower case 3 as described above. It is realized by The rotating brush 11 is
The locus of rotation is arranged at a position close to the bumper 20 and the front wall 22 provided only in the central portion.

On the bottom side of the suction tool body 1, rear wheels 25, which are located on the lower side of the connecting pipe 6 and are the same as those in the conventional case, are provided. The front wheels are not provided due to the space provided by the above configuration. Instead, a raised cloth 26 having an effect of polishing the floor or tatami mat is attached to the contact portion of the rotating brush 11 near the bearing 16 with the surface to be cleaned, and the suction port 7 is provided.
A pair of left and right front wheels 27, 27 are provided on the rear edge side of the suction port 7 slightly toward the center, utilizing a space formed between the above-mentioned substantially arc-shaped floor polishing brush 18.
Also, on the front side of the rear wheel 25, a raised cloth 26 similar to the above
Is attached. In the wheels 25 and 27, the operating point of the operation force applied to the connecting pipe 6 is the rear wheel 25 and the front wheels 2 on both sides.
It is arranged so as to be located between 7, 27. Further, each of the napped cloths 26 has its own weight of the floor suction device itself so that the wheels 25 and 27 are floated on the floor surface as shown in FIG. 2 when the floor surface such as a normal flooring is cleaned. The thickness is set in consideration of the operation force applied to the connection pipe 6 and the like.

Further, the corner portions on both sides of the front part of the suction tool body 1 are covered with a raised cloth 28, and brushes 29 are attached to the lower surface side, so that the corner portions near the wall can be efficiently cleaned. You can do it.

Between the front wheels 27, 27 and on both sides of the front wheels 27, the tips of the hairs are directed toward the suction port 7 side so that the lint on the carpet is caught and caught when the floor suction device moves forward, and when the vehicle moves backward. A thread take-up brush (etiquette brush) 30 for attaching the carpet surface to the carpet surface so as to be detached and sucked from the suction port 7 is attached.

Further, the above-mentioned thread take-up brushes 30 and the floor polishing brushes 18 arranged behind them at regular intervals.
A groove portion 31 is formed between the floor suction brush and the floor suction brush 18, which is tilted forward when the floor suction tool is moved backwards. It is designed to prevent the lint from being unable to come off.

In the floor suction device constructed as described above, the front wheel 27 is sucked by utilizing the space formed by the floor polishing brush 18 formed in a substantially arc shape from the conventional front portion as described above. By moving to the rear edge of the mouth 7,
Since the front space can be narrowed and the rotating brush 11 can be arranged on the front side as compared with the conventional one, when the floor suction tool is pressed so that the bumper 20 contacts the wall surface, the wall surface and the rotating brush 11 Since the distance from the tip is smaller than before, the performance of cleaning along the wall is improved.

Further, in order to add the effect of polishing the floor and the tatami mat, a nap cloth 26 is provided in place of the conventional front wheels. However, the nap cloth 26 collapses when a load is applied, and therefore the nap cloth is for the floor. The front side of the suction tool sinks and the front side of the suction tool is squeezed in during operation, resulting in poor operability. As a countermeasure against this, in the present embodiment, the front wheel 2 is provided on the rear edge side of the suction port 7.
7 and 27 are arranged so that the point of action of the operating force applied to the connecting pipe 6 is located between the front wheels 27, 27 and the rear wheel 25, the operating force applied to the floor suction device is different. Wheel 2
Since it is applied to Nos. 5 and 27, it is possible to prevent a decrease in operability, which is likely to be felt before the operation.

Further, conventionally, since front wheels are provided on both sides of the front part of the floor suction tool and the distance between the front wheels is large, an operation applied to the connecting pipe 6 when cleaning a heavily loaded surface to be cleaned such as a carpet. When the force is increased, the central portion of the suction tool body 1 is bent and pressed against the carpet surface, so that the frictional resistance is increased, the load is further increased, and the operability is deteriorated. On the other hand, in the present embodiment, the front wheel 2 has the configuration described above.
Since the distance between the rear wheel 7 and the rear wheel 25 is narrowed to about half, the bending can be reduced, and the frictional resistance with respect to the surface to be cleaned such as a carpet having a large load can be reduced. As described above, since the resistance at the time of operation can be reduced, it becomes possible to operate with a light force. In addition, the fact that the resistance is small means that the load is always constant, so that the operation can always be performed with a constant force.
Further, in the present embodiment, since the front wheel 27 is provided on the rear edge side of the suction port 7, the distance between the front wheels 27, 27 can be narrowed, so that the bending in the width direction can be reduced and the operability is further improved. Can be improved.

As shown in FIG. 2, the front wheel 27 is raised by the raised cloth 26 when cleaning the floor such as a flooring.
Also, since the rear wheel 25 is floated from the floor surface, when the floor suction device is moved laterally by a wall or the like, an increase in frictional resistance or a scratch on the floor surface caused by the wheel not rotating may occur. Can be prevented. Further, since the raised cloth 26 has an effect of polishing the floor surface such as the flooring, the effect of polishing the floor surface such as the flooring can be sufficiently exerted as compared with the case where the wheels are grounded.

Further, the front part of the suction tool body 1 located at a position away from the point of application of the operating force applied to the connecting pipe 6 in the traveling direction
When pushing out at the time of starting cleaning, resistance is generated and acts so as to sink toward the surface to be cleaned.
Since the front wall 22 having a sled shape is provided in the center of the front part of the, the resistance at the time of extrusion can be reduced and the sinking can be eliminated. Since the operability of the floor suction tool is judged to be heavy and light depending on the initial load of pushing out, the operability is further improved by eliminating the resistance at the time of pushing out and the discomfort of sinking.

Further, if a wheel is used at the contact portion with the floor surface, vibration and noise generated when the brush rotates are transmitted to the floor surface and arms without being absorbed, and the user feels uncomfortable during operation. As shown in FIG. 5, the raised cloth 26 is provided in the contact portion with the surface to be cleaned in the vicinity of the bearing portion 16 of the rotary brush 11, so that vibration and noise due to brush rotation are efficiently absorbed,
Since it can be reduced, discomfort during operation can be prevented. Even if the wheels 25 and 27 are not in the vicinity of the bearing portion 16 of the rotating brush 11, if the wheels 25 and 27 can be floated, it is possible to prevent vibration and noise due to brush rotation from being transmitted to the floor surface through the wheels 25 and 27. A certain effect can be obtained with respect to the reduction of vibration and noise.

Further, since the floor polishing brush 18 is formed in a substantially arc shape (or a substantially V shape) toward the suction port 7, the dust D which could not be sucked in when advancing as shown in FIGS. It hits the polishing brush 18 and bounces back toward the inner center, and by repeating this, the dust is guided to the central portion where the suction force is strong. By collecting the dust in the central portion by this guidance, when the floor suction tool moves backward or reciprocates, the collected dust is easily sucked, and the dust collection efficiency is improved.

Further, by effectively utilizing the space formed by the rear edge of the suction port 7 and the floor polishing brush 18 as described above,
By providing both front wheels 27, 27 and the thread take-up brush 30 between them and on both sides thereof, the thread take-up brush 30 and the front wheel 27 can be arranged at positions close to each other.
Since the position of the carpet and the yarn take-up brush 30 can be kept constant by controlling the position with, stable yarn take-up performance can be obtained.

Further, since the groove portion 31 is provided between the thread take-up brush 30 and the floor polishing brush 18, the groove portion 31 is formed between the floor polishing brush 18 which has fallen forward when the floor suction tool is moved backward.
Since it can be collapsed inside, the thread take-up brush 30
Even if the floor polishing brush 18 is arranged close to the carpet, it is possible to prevent the thread take-up brush 30 from overlapping with the carpet surface and pushing down the carpet surface so that the thread take-up brush 30 is lifted from the carpet surface. .

In the above embodiment, the case where the present invention is applied to the floor suction tool of the type in which the outside air that is taken in and the exhaust gas that is recirculated is received and rotated by the brush body 9a and the blade 9b of the rotary brush 11 has been shown. However, it can be applied to various floor suction tools such as one using only one of them, a general turbine brush, a power brush using a motor, and the like. Further, the invention is not limited to the exhaust gas recirculation type, and can be applied to a floor suction tool of an electric vacuum cleaner that only uses normal suction air.

Further, although the floor polishing brush 18 is formed in a substantially arcuate shape or a substantially V shape, any brush-like member arranged in the longitudinal direction on the rear bottom surface of the suction port 7 may be formed in a similar shape. As a result, the same effect can be obtained.

[0037]

As described above, according to the present invention, the suction tool main body having the suction port on the lower surface, and the brush-like member arranged over the longitudinal direction on the rear bottom surface of the suction port are provided. By forming a shape that opens in a substantially arc shape or a substantially V shape toward the suction port, dust that could not be sucked in by the suction port during the floor cleaning forward gathers in the central part where the suction force is strong, making it easier to suck. Therefore, the dust collection efficiency is improved.

Further, by arranging the front wheels in the space formed between the rear edge of the suction port and the brush-like member, the above space is effectively used to narrow the space in the front part of the suction tool body. Since the rotary brush can be arranged on the front side as compared with the conventional case, the distance between the wall surface and the tip of the rotary brush becomes smaller than that of the conventional case, and the dust collecting efficiency for cleaning the wall is improved.

Further, the lint on the carpet is caught by catching it in the space formed between the rear edge of the suction port and the brush-like member, and it is separated by coming into contact with the carpet surface when moving backward and sucking it. By arranging the thread take-up brush for sucking from the mouth, it is possible to arrange the thread take-up brush by effectively utilizing the above-mentioned space, and especially by combining with the front wheel, the thread take-up brush and the front wheel can be arranged in close positions, Since the position between the carpet and the thread take-up brush can be kept constant by regulating the position with the front wheels, stable thread take-up performance can be obtained.

Further, the brush-like member is effectively applied to a floor polishing brush.

Further, the brush-like member is composed of a floor polishing brush, and a groove is formed between the floor polishing brush and the thread take-up brush so that the floor polishing brush which falls forward when the vehicle is moving backward falls into the groove. By doing so, it is possible to prevent the thread take-up brush and the floor polishing brush from overlapping even if they are placed close to each other, or to prevent the thread take-up brush from being pushed up from the carpet surface by pushing down the carpet surface. The thread take-up performance can be maintained.

[Brief description of drawings]

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

FIG. 2 is a side view of the same.

FIG. 3 is a top view of the same.

FIG. 4 is a sectional view taken along line AA of FIG.

5 is a sectional view taken along line BB of FIG.

FIG. 6 is a front view of the same.

FIG. 7 is a schematic vertical cross-sectional view seen from the front side for showing that the raised fabric is provided in a contact portion with a surface to be cleaned in the vicinity of the bearing of the rotating brush.

FIG. 8 is a schematic vertical sectional view seen from the side.

[Explanation of symbols]

1 Suction tool body 2 upper case 3 lower case 4 Lid 5 Rotating tube 6 connecting pipe 7 Suction port 8 rotating brush storage room 9a brush body 9b blade 10 core 11 rotating brush 15 Both ends of rotating shaft 16 Bearing 17 Mounting part 18 floor brush 20 bumper 21 Fins 22 front wall 25 rear wheel 26,28 brushed cloth 27 front wheels 29 brushes 30 thread take-up brush 31 groove D garbage

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Chiyoyo Matsumoto             2-5-3 Keihan Hondori, Moriguchi City, Osaka Prefecture             Within Yo Denki Co., Ltd. (72) Inventor Yoshiaki Matsumoto             2-5-3 Keihan Hondori, Moriguchi City, Osaka Prefecture             Within Yo Denki Co., Ltd. F term (reference) 3B061 AA06 AA26 AA35 AA51 AB02                       AB08 AB09

Claims (6)

[Claims] 1. A suction tool body having a suction port on a lower surface thereof, and a brush-shaped member disposed longitudinally on a rear bottom surface of the suction port, wherein the brush-shaped member is substantially arc-shaped toward the suction port. A floor suction tool for an electric vacuum cleaner, which is formed in an open shape. 2. A suction tool body having a suction port on a lower surface, and a brush-shaped member disposed longitudinally on a rear bottom surface of the suction port, wherein the brush-shaped member is substantially V-shaped toward the suction port. A floor suction tool for an electric vacuum cleaner, which is formed in a substantially open shape. 3. The floor for the electric vacuum cleaner according to claim 1, wherein a front wheel is arranged in a space formed between a rear edge of the suction port and the brush-like member. Suction tool. 4. The lint on the carpet is caught by catching it in the space formed between the rear edge of the suction port and the brush-like member, and is separated by coming into contact with the carpet surface when moving backward. 4. A thread take-up brush for sucking from a suction port is arranged.
The floor suction device for an electric vacuum cleaner according to any one of 1. 5. The floor suction device for an electric vacuum cleaner according to claim 1, wherein the brush-shaped member is a floor polishing brush. 6. The brush-like member comprises a floor polishing brush, and a groove is formed between the floor polishing brush and the thread take-up brush so that the floor polishing brush that falls forward when moving backward is collapsed into the groove. The floor suction device for an electric vacuum cleaner according to claim 4, wherein the suction device is for a vacuum cleaner.