JP4738960B2 - Vacuum cleaner floor nozzle and vacuum cleaner - Google Patents

Description

  The present invention relates to a floor nozzle for a vacuum cleaner having a rotating rotor for dust lifting and a vacuum cleaner using the same.

  As a conventional floor nozzle for this type of vacuum cleaner (hereinafter referred to as “floor nozzle”), a rotary rotor is driven to rotate by a built-in electric motor to scrape dust. As a result, the floor nozzle becomes heavier, the operability on the floor surface becomes worse, and in order to supply power to the motor, electric wires, connectors for electrical connection, etc., as well as the main body of the vacuum cleaner, The hose, the extension pipe, and the floor nozzle that connect the machine main body and the floor nozzle must be provided, which increases the weight and cost.

  In order to solve such a problem, the number of motors that do not use an electric motor by using a suction airflow to rotationally drive a rotating rotor has been increasing recently.

As an example, an air turbine having a rotating shaft parallel to the rotating shaft of the rotating rotor and rotating with suction air is formed by a plurality of blades, and the rotating rotor is driven by the power of the air turbine via a pulley and a belt. (For example, refer to Patent Document 1).

  A rotating rotor having a turbine at both ends, and a brush cover that covers the turbine and the rotating rotor and has an air inlet at a position facing the turbine; There is also one in which a rotating rotor is rotated together with the turbine from the direction orthogonal to the rotation axis of the turbine (for example, see Patent Document 2).

  The rotary rotor has a rotatable rotor having a cleaning blade in the longitudinal direction of the circumferential surface, and an air inlet opening in the left and right direction on the front surface of the floor nozzle, and air sucked from the air inlet is There is also one in which the rotary rotor is rotationally driven by directly contacting the blade (see, for example, Patent Document 3).

  A rotatable rotor, an impeller that rotates coaxially and integrally with the rotating rotor, and is disposed in the vicinity of the floor nozzle body; a plurality of blades; a nozzle; and a side surface of the floor nozzle body. An air intake port for taking in air from the outside, and the suction air flowing in from the air intake port is collected by the nozzle and accelerated, and then collides with the impeller, thereby generating torque and rotating with the impeller. There is also one that is driven to rotate (see, for example, Patent Document 4).

Further, a rotatable rotating rotor having a hollow cylindrical shape and having a flexible body including an air outlet and brush bristles on the outer peripheral surface, a rotor blade turbine fitted to the end of the rotating rotor, and a side surface of the floor nozzle body And the suction air generated by the operation of the vacuum cleaner, and the outside air sucked through the intake air hits each blade of the rotor blade turbine, whereby the rotor blade turbine rotates and the rotating rotor rotates accordingly. In some cases, the air that has passed through the rotor blade turbine passes through the rotary rotor, exits from the jet port, and reaches the suction passage (for example, see Patent Document 5).
JP-A-6-86744 JP-A-5-176870 JP-A-10-234629 Japanese Patent No. 2894484 Japanese Patent Laid-Open No. 11-104047

However, each of the conventional vacuum cleaner floor nozzles has the following problems.
In the configuration of the conventional floor nozzle for an electric vacuum cleaner disclosed in Patent Document 1, an extra space is required for housing the air turbine, the floor nozzle is enlarged, and the power of the air turbine is supplied to a pulley or a belt. Therefore, the structure for rotating the rotary rotor is complicated, the number of parts is large, and the floor nozzle cannot be constructed at low cost.

  Moreover, in the structure of the conventional floor nozzle for electric vacuum cleaners disclosed in Patent Document 2, the cleaning nozzle and the brush provided on the rotary rotor cannot be extended to the portion where the turbine is disposed. The cleaning width when operated with becomes shorter, and the cleaning efficiency is greatly reduced. In addition, since the direction of the suction air flowing from the intake port is bent at a right angle after colliding with the turbine, the air passage resistance in the turbine portion increases, and the turbine cannot be rotated with a strong torque.

  Further, in the configuration of the conventional floor nozzle for a vacuum cleaner disclosed in Patent Document 3, the suction air from the front hits the surface of the blade provided on the outer periphery of the rotary rotor substantially perpendicularly. Although it can be received well, since the rotational resistance becomes very large as a price, a large rotational torque cannot be obtained and the cleaning efficiency of the surface to be cleaned is poor.

  Further, in the configuration of the conventional floor nozzle for an electric vacuum cleaner disclosed in Patent Document 4, the cleaning blade and brush provided on the rotary rotor cannot be extended to the portion where the impeller and the nozzle are arranged. The cleaning width when the nozzle is operated on the floor surface is shortened, and the cleaning efficiency is greatly reduced. In addition, since an impeller, a nozzle, and the like are provided, the structure is complicated, the number of parts is increased, and the floor nozzle cannot be configured at low cost. Moreover, since dust contained in the inflowing air is likely to be clogged in a narrow portion through which the air of the nozzle and the impeller passes, the rotational torque is gradually reduced and the cleaning efficiency is remarkably lowered.

  In addition, in the case of the conventional vacuum cleaner floor nozzle disclosed in Patent Document 5, the cleaning blade and brush provided on the rotary rotor cannot be extended to the portion where the rotor blade turbine is disposed. The cleaning width when the floor nozzle is operated on the floor surface is shortened, and the cleaning efficiency is lowered. Further, since the moving blade turbine is provided, the structure is complicated, and the number of parts increases, and the floor nozzle cannot be constructed at low cost. In addition, in order to increase the rotational torque generated by the rotor blade turbine, the space between the blades constituting the blade is narrow, so that dust contained in the inflowing air is likely to be clogged between the blades and the blades. As a result, the wind passage becomes worse, so the rotational torque by the rotor blade turbine is reduced and the cleaning efficiency is lowered.

  The present invention solves the above-described conventional problems, and provides a floor nozzle for an electric vacuum cleaner having an inexpensive configuration, a large rotational torque of a rotary rotor, and excellent cleaning performance, and an electric vacuum cleaner using the same. With the goal.

In order to solve the conventional problem, in a vacuum cleaner floor nozzle having a rotary rotor for dust cleaning, the vacuum cleaner floor nozzle is provided on a lower surface of the floor nozzle to suck dust. A suction port , at least one spiral cleaning body on the outer periphery, a rotary rotor having at least one spiral wind receiver and scooping up dust, and a rotary rotor chamber for rotatably storing the rotary rotor; An air inlet that is arranged on one or both sides of the outer wall of the floor nozzle located outside the longitudinal end of the rotary rotor, and that communicates with the rotary rotor chamber and takes in outside air. So that the air flowing in from the at least one end of the rotary rotor flows toward the other end so that the rotary rotor is rotated against the cleaning body and the wind receiving body. Since rotational torque is continuously applied to the cleaning body and the wind receiving body by the air flowing from one end portion toward the other end side, the rotating rotor can be operated without using another component such as a turbine or a nozzle. A floor nozzle for a vacuum cleaner that can be rotated with high torque, is lightweight, compact, and has excellent cleaning performance can be provided.

  Moreover, the vacuum cleaner of this invention is equipped with an electric blower, the dust collection chamber which collects dust, and the floor nozzle for electric vacuum cleaners of any one of Claims 1-3, The said electric blower And the floor nozzle for the vacuum cleaner are connected, and the rotating rotor can be rotated with high torque without using a separate component such as a turbine or nozzle, so it is lightweight, compact, and has excellent cleaning performance. A vacuum cleaner can be provided.

  The floor nozzle for a vacuum cleaner according to the present invention can rotate a rotary rotor with high torque without using a separate component such as a turbine or a nozzle, so that it is lightweight, compact, and has an excellent cleaning performance. A floor nozzle can be provided.

A first aspect of the invention relates to a floor nozzle for a vacuum cleaner having a rotary rotor for dust cleaning , wherein the floor nozzle for the vacuum cleaner includes a suction port provided on a lower surface of the floor nozzle for sucking dust. A rotating rotor having at least one spiral cleaning body on the outer periphery, a rotary rotor having at least one spiral wind receiving body to scoop up dust, a rotating rotor chamber for rotatably storing the rotating rotor, and the rotating rotor Air that is disposed on one or both side surfaces of the outer wall of the floor nozzle located outside the longitudinal end of the air inlet, includes an air inlet that communicates with the rotary rotor chamber and takes in outside air, and flows in from the air inlet , The rotating rotor is rotated against the cleaning body and the wind receiving body so as to flow from at least one end of the rotating rotor toward the other end. Since rotational torque is continuously applied to the cleaning body and wind receiving body by the air flowing from the end to the other end, the rotating rotor can be rotated at high torque without using a separate component such as a turbine or nozzle. Therefore, it is possible to provide a floor nozzle for a vacuum cleaner that is lightweight, compact, and excellent in cleaning performance.

  In the second invention, in particular, the helical cleaning body of the first invention and the twist angle of the wind receiving body are set to 360 degrees or more and 1440 degrees or less in terms of the total length of the rotating rotor. It can be rotated with sufficient rotational torque that does not interfere with the work, and the contact resistance between the end of the cleaning body and the cleaning surface is reduced, so the cleaning performance is improved by rotating the rotating rotor at a higher speed. be able to.

  In the third invention, in particular, air inlets are arranged on both side surfaces of the outer wall of the floor nozzle of the first or second invention, and the twisting direction of the spiral cleaning body and the wind receiving body is set to the longitudinal direction of the rotary rotor. The cleaning body and the wind receiving body are arranged in a substantially V shape in the opposite direction from the middle of the direction, and the dust that has been scraped up flows from both ends toward the center, so the residence time in the rotary rotor chamber It is sucked in short and promptly, so that the cleaning efficiency is good, and the scraped dust is less scattered.

  4th invention is equipped with the electric blower, the dust collection chamber which collects dust, and the floor nozzle for vacuum cleaners of any one of Claims 1-3, The said electric blower and the said vacuum cleaner Because the rotary rotor can be rotated with high torque without using separate components such as turbines and nozzles, a lightweight vacuum cleaner with excellent cleaning performance can be obtained. Can be provided.

  Embodiments of the present invention will be described below with reference to the drawings. In addition, this invention is not limited by this Example.

  1 is an overall side view of a vacuum cleaner connected to a floor nozzle for a vacuum cleaner according to a first embodiment of the present invention, FIG. 2 is an external perspective view of the floor nozzle for the vacuum cleaner, and FIG. The back surface perspective view of the floor nozzle for vacuum cleaners, FIG. 4 is a perspective view of the rotary rotor attached to the floor nozzle for vacuum cleaners.

  In FIG. 1, a vacuum cleaner 1 includes a dust collecting chamber 2 that collects dust at a front portion, a cleaner main body 5 that includes an electric blower chamber 4 that incorporates an electric blower 3 at a rear portion, and the dust collecting chamber. 2, a hose 6 having one end connected to the cleaner body 5 so as to communicate with 2, and an extension pipe 8 detachably connected to a handle pipe 7 provided at the other end of the hose 6. The other end of the vacuum cleaner is connected to a floor nozzle 9 for vacuum cleaner (hereinafter referred to as “floor nozzle 9”) in the present embodiment.

Next, details of the floor nozzle 9 in this embodiment will be described with reference to FIGS.
2 to 4, the outer shell 10 of the floor nozzle 9 is composed of an upper case 11 and a lower case 13 having a suction port 12 on the lower surface, for preventing the outer periphery from being damaged to furniture or the like during cleaning. A bumper 14 is provided, and a rotary rotor chamber 17 that houses the rotary rotor 16 rotatably and communicates with the suction port 12 is disposed at the front. A connecting pipe 18 connected to the extension pipe 8 is attached to the rear part of the floor nozzle 9 so as to be tiltable. A plurality of air inlets 19 are provided in the vicinity of the ends of the rotary rotor 16 on both side surfaces of the upper case 11 for introducing outside air. In this embodiment, the air inlet 19 is provided only on the side surface of the upper case 11, but only the side surface of the lower case 13 or the bumper 14 or any one of the upper case 11, the lower case 13, and the bumper 14. One or all of them may be provided.

  Reference numeral 20 denotes a traveling roller provided in a pair on the front and rear of the lower surface of the lower case 13. When the floor nozzle 9 is placed on a cleaning surface such as a wooden floor, the cleaning surface and the bottom surface of the lower case 13 are arranged. A predetermined gap is secured between the floor nozzle 9 and the cleaning surface so that the operability is not deteriorated.

Reference numeral 23 denotes a suction port that is located substantially at the center of the floor nozzle 9 and behind the rotary rotor 16 and communicates the rotary rotor chamber 17 and the connecting pipe 18.
Next, the configuration of the rotary rotor 16 will be described with reference to FIG.

  In FIG. 4, the rotary rotor 16 includes a rotor 27 made of a metal material such as aluminum and provided with four groove portions 26 evenly in the longitudinal direction of the outer peripheral surface, and a cleaning body 28 having one end fitted to the groove portion 26. Similarly, a wind receiving body 31 whose one end is fitted and attached to the groove portion 26, a cleaning body 28, and a bearing holder 29 that is press-fitted into both end portions of the rotor 27 after the wind receiving body 31 is attached to the rotor 27. ing. Reference numeral 30 denotes a bearing that rotatably supports the bearing holder 29 and is held on the side wall of the floor nozzle 9.

  The cleaning body 28 is attached to the rotor 27, and its open end is set so as to come into contact with a surface to be cleaned such as a floor surface or a carpet when the rotary rotor 16 rotates.

  The wind receiver 31 is mounted on the rotor 27 in the same manner as the cleaning body 28, but its open end is set so as not to come into contact with a surface to be cleaned such as a floor surface or a carpet when the rotary rotor 16 rotates. Has been.

  The groove 26 provided in the rotor 27 is formed in a spiral shape with a predetermined twist angle in a counterclockwise direction from one end of the rotor 27 (for example, the right end in FIG. 3) to the center, and from the center to the other end. Similarly, it is formed in a spiral shape at a predetermined twist angle in the opposite direction, that is, in the clockwise direction. In the present embodiment, a predetermined twist angle is converted into the entire length of the rotary rotor 16 and is formed in a spiral shape with a twist angle of 180 degrees counterclockwise from one end portion to the center portion of the rotor 27. From there, it is formed in a spiral shape with a twist angle of 180 degrees in the clockwise direction from the other end to a so-called substantially V-shape. Therefore, the cleaning body 28 and the wind receiving body 31 attached to the groove 26 are also substantially V-shaped.

  In the above embodiment, the twist angle is set to 360 degrees in terms of the total length of the rotary rotor 16, but if the angle is 540 degrees, 720 degrees and 360 degrees to 1440 degrees, the angle is It is not limited. In addition, the cross-sectional shape of the groove portion 26 is a constant substantially ridge shape over the entire length of the rotor 27 and is formed so that the outer peripheral opening is narrower than the inside.

The operation and action of the floor nozzle for an electric vacuum cleaner having the above configuration will be described with reference to FIG.
First, the case where the floor nozzle 9 connected to the vacuum cleaner main body 5 via the hose 6 and the extension pipe 8 is used on the carpet will be described.

  When the vacuum cleaner main body 5 is operated with the floor nozzle 9 placed on the carpet, the suction force by the electric blower 3 built in the vacuum cleaner main body 5 is changed to the hose 6, the extension pipe 8, the connection pipe 18, and the suction port 23. And, it acts on the suction port 12 through the rotary rotor chamber 17. At this time, since the traveling roller 20 of the floor nozzle 9 is buried in the carpet on the carpet, the suction port 12 is almost sealed with the carpet, and the suction force is an air inlet port provided on the side surface of the upper case 11. 19, the outside air flows in from the air inlet 19 and flows from both ends of the rotary rotor 16 toward the center as indicated by broken arrows. At that time, the air is arranged on the outer peripheral surface of the rotary rotor 16. A plurality of spiral cleaning bodies 28 and a wind receiving body 31 are directly and strongly blown onto the surface of the wind receiving body 31 to generate rotational torque that rotates the rotary rotor 16 in the direction of arrow A.

  The air continuously sucked from the air inlet 19 provided on the side surface of the outer shell 10 of the floor nozzle 9 is provided in the center of the floor nozzle 9 along the surfaces of the spiral cleaning body 28 and the wind receiving body 31. In the meantime, the air continuously gives a rotational torque to the cleaning body 28 and the wind receiving body 31, so that a strong rotational torque is generated and the rotating cleaning body 28 rotates. The dust 32 adhering to the carpet is scraped up, and the dust 32 thus picked up is carried to the suction port 23 by air moving from the side of the floor nozzle 9 toward the center.

  The dust 23 sucked from the suction port 23 passes through the extension pipe 8 and the hose 6 together with the air and is collected in the dust collecting chamber 2 provided in the main body 5 of the vacuum cleaner. The air is exhausted to the outside through an exhaust port (not shown) provided at the rear of the machine body 5.

Next, the case where the floor nozzle 9 in this embodiment is used on a tatami mat or a wooden floor will be described.
Although not particularly illustrated, when the floor nozzle 9 is used on a tatami mat or a wooden floor (hereinafter referred to as “cleaning surface”), a predetermined distance between the bottom surface of the lower case 13 of the floor nozzle 9 and the cleaning surface is set by the traveling roller 20. Since the clearance is secured, most of the air sucked by the suction force acting when the vacuum cleaner main body 5 is operated passes between the bottom surface of the lower case 13 having a small airflow resistance and the cleaning surface together with dust. Then, it flows from the suction port 12 and is sucked from the suction port 23. During this time, almost no air flows from the air inlet 19 provided on the side surface of the lower case 13, so the rotary rotor 16 does not rotate and the cleaning surface does not irritate the cleaning body 28.

  However, when it is desired to provide the cleaning body 28 with a function of polishing a cleaning surface such as a wooden floor, the clearance between the bottom surface of the lower case 13 and the cleaning surface and the opening area of the air introduction port 19 are set as appropriate. Even when the nozzle 9 is used on a cleaning surface such as a wooden floor, the rotary rotor 16 can be rotated at an appropriate rotational speed suitable for polishing.

  As described above, according to this embodiment, the rotary rotor 16 can be rotated with high torque without using separate components such as an air turbine, a moving blade turbine, and a nozzle. The floor nozzle 9 for a vacuum cleaner excellent in performance can be provided.

  Further, the cleaning body 28 and the wind receiving body 31 are arranged in a substantially V shape, and air is introduced from the air introduction ports 19 provided on both side surfaces of the outer shell 10 of the floor nozzle 9, so that it is scraped up. Since the residence time of the dust in the rotating rotor chamber 17 is short and quickly sucked from the suction port 23, the cleaning efficiency is good, and the dust that has been scraped up is not scattered.

  In this embodiment, the twisting angle of the cleaning body 28 and the wind receiving body 31 (= twisting angle of the groove portion 26) is 360 degrees in terms of the total length of the rotary rotor 16, but the twisting angle is larger than this. By doing so, the rotational torque of the rotary rotor 16 is improved and the contact resistance between the end of the cleaning body 28 and the carpet is reduced, so that the cleaning performance can be improved by rotating the rotary rotor 16 at a higher speed.

  In this embodiment, the cleaning body 28 and the wind receiving body 31 are described as separate parts. However, as shown in FIG. 6, the cleaning body 28 and the wind receiving body 31 are integrated or integrated. The same effect can be obtained with the formed structure.

  FIG. 7 is a partially omitted perspective view of the floor nozzle for a vacuum cleaner according to the second embodiment of the present invention. In addition, about the same part as the floor nozzle for vacuum cleaners in the said 1st Example, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

In the first embodiment, the air introduction port 19 is provided on both side surfaces of the upper case 11 forming the outer shell 10, and the rotary rotor 16 having the substantially V-shaped cleaning body 28 and the wind receiving body 31 is used. Although the suction port 23 is arranged at substantially the center of the floor nozzle 9, in this embodiment, as shown in FIG. The body 28 and the wind receiving body 31 are twisted in one direction from one end to the other, and the suction port 23 is provided at the end of the floor nozzle 9 opposite to the air introduction port 19. Is.
In addition, although the suction port 23 is provided in the edge part of the floor nozzle 9, it is comprised so that it may connect with the connection pipe 18 by the air passage which is not shown in figure.

  With the above configuration, when the floor nozzle 9 in the present embodiment is used on a carpet, the air flowing in from the air inlet 19 provided on one side surface of the upper case 11 is introduced from the end of the rotary rotor 16 on the air inlet 19 side. While flowing to the other end side, the cleaning body 28 twisted in one direction and the wind receiving body 31 are successively hit, and rotational torque is applied to the cleaning body 28 and the wind receiving body 31 while rotating the rotary rotor 16. Then, it moves to the other end side of the floor nozzle 9 and is sucked from the suction port 23 together with the dust 32 scraped up by the cleaning body 28.

  As described above, according to the present embodiment, the cleaning body 28 provided on the outer peripheral surface of the rotary rotor 16 and the wind receiving body 31 are twisted only in one direction, so that the groove portion 26 provided in the rotor 27 is formed. And the mounting of the cleaning body 28 and the wind receiving body 31 to the groove part 26 becomes easy, and the floor nozzle 9 can be configured at low cost.

  As described above, the floor nozzle for vacuum cleaner and the vacuum cleaner according to the present invention can rotate the rotary rotor with high torque without using separate parts such as an air turbine, a moving blade turbine, and a nozzle. Therefore, it is lightweight, compact and excellent in cleaning performance, and can be applied to various household and commercial vacuum cleaners.

The whole side view of the vacuum cleaner which connected the floor nozzle for vacuum cleaners in 1st Example of this invention. External perspective view of floor nozzle for vacuum cleaner Rear perspective view of the floor nozzle for the vacuum cleaner The perspective view of the rotation rotor attached to the floor nozzle for the vacuum cleaner Partial perspective view of the floor nozzle for the vacuum cleaner The partial perspective view of the rotary rotor which shows the example which comprised the cleaning body and wind receiving body of the floor nozzle for the same vacuum cleaner integrally The partial lacking perspective view of the floor nozzle for vacuum cleaners in the 2nd example of the present invention

Explanation of symbols

1 Vacuum cleaner 2 Dust collection chamber
DESCRIPTION OF SYMBOLS 3 Electric blower 5 Vacuum cleaner body 9 Floor nozzle for vacuum cleaner 10 Outer 16 Rotating rotor 17 Rotating rotor chamber 19 Air inlet 23 Suction port 28 Cleaning body 31 Wind receiving body

Claims (4)

In a vacuum cleaner floor nozzle having a rotary rotor for dust sweeping, the vacuum cleaner floor nozzle includes a suction port provided on a lower surface of the floor nozzle for sucking dust, and at least one strip on an outer periphery. A spiral cleaning body, a rotary rotor having at least one spiral wind receiver and scooping up dust, a rotary rotor chamber for rotatably storing the rotary rotor, and a longitudinal end portion outside the rotary rotor An air introduction port which is arranged on one or both sides of the outer wall of the floor nozzle located at a position and communicates with the rotation rotor chamber and takes in outside air, and allows the air flowing from the air introduction port to flow into the rotation rotor chamber. A floor nozzle for an electric vacuum cleaner, wherein the rotary rotor is rotated by being applied to the cleaning body and the wind receiving body so as to flow from at least one end portion toward the other end side.   The floor nozzle for a vacuum cleaner according to claim 1, wherein the twist angle of the spiral cleaning body and the wind receiving body is 360 degrees or more and 1440 degrees or less in terms of the total length of the rotary rotor.   An air inlet is provided on both sides of the outer wall of the floor nozzle, and the torsional direction of the spiral cleaning body and the wind receiving body is changed from the middle of the longitudinal direction of the rotary rotor to the opposite direction. The floor nozzle for a vacuum cleaner according to claim 1 or 2, wherein the body is arranged in a substantially V shape.   An electric blower, a dust collection chamber for collecting dust, and the vacuum cleaner floor nozzle according to any one of claims 1 to 3, wherein the electric blower and the vacuum cleaner floor nozzle communicate with each other. Let the vacuum cleaner.