JP5923681B2 - Suction tool for vacuum cleaner and vacuum cleaner using the same - Google Patents

Description

  The present invention relates to a suction tool for a vacuum cleaner having a rotating brush.

  Generally, the suction tool of a vacuum cleaner having a rotating brush is provided with an opening for dust absorption on the lower surface of the suction port body, and dust is removed from the surface to be cleaned such as floor and carpet by rotating the rotating brush protruding from the opening. Is sucked out from the suction port disposed in the center of the suction port body. The rotary brush is rotationally driven via a belt from a drive motor or a rotational drive source of a turbine blade that uses suction air. Further, in recent suction tools, in order to improve the operability of cleaning, the rotation direction of the rotating brush is rotated in the direction in which the suction tool moves forward. As another example, in order to improve the dust scraping performance by the rotating brush, the exhaust air generated from the suction electric blower of the vacuum cleaner body is circulated to the suction tool, and the nozzle is provided at the front of the rotating brush. There is also an example in which the dust scraping performance is improved by blowing toward the rotating brush (for example, see Patent Document 1).

Japanese Patent Laid-Open No. 11-206628

  However, in the conventional configuration, the suction port is arranged at the center of the brush storage chamber storing the rotary brush, and the opening width is about 1/4 with respect to the width of the rotary brush. Is a wall. The rotating brush rotates in the direction of scraping dust toward the rear suction port and the wall surfaces on both sides of the suction port. Most of them collide with the wall surfaces on both sides of the suction port and bounce back, and the movement is disturbed by the gap between the rotating brush and the wall surface on both sides of the suction port. Therefore, the dust scraped by the rotating brush cannot be reliably sucked from the suction port, and the suction remains.

  In addition, a notch is usually provided near the rotating brush on both sides of the suction tool, and it is configured to accommodate suction from the side, but this notch is in contact with the surface to be cleaned. The suction wind that enters from the above has not been sufficient to transport the above-mentioned blasted and turbulent dust to the suction port.

  This invention solves the said conventional subject, and provides the suction tool for vacuum cleaners which enabled it to suck the dust scraped off with the rotating brush reliably from a suction opening.

In order to achieve the above object, the vacuum cleaner suction tool of the present invention is provided with an opening for sucking dust on the lower surface of the suction tool body, and a part of the opening is rotatably held. a rotating brush accommodating chamber with a rotating brush, the suction device which substantially provided the suction port which is communicated in the vicinity of the center portion of the opening, between the rotary brush accommodating chamber and the opening, the rotary brush housing A flow path body defined by a chamber and walls on both sides of the suction port is formed, and air outlets for injecting blown air from a blower are provided at both ends of the flow path body. The direction of the outlet is configured to inject the blowing air toward the air, and the blowing air is more than the flow velocity of the suction air flowing from the gap between the lower surface of the suction tool body and the surface to be cleaned, generated by suction pressure. Injecting at a high flow rate .

By such an invention, the dust scraped from the surface to be cleaned with the rotating brush and the dust that bounced off and collided with the wall surfaces on both sides of the suction port are forced to the suction port by the blowout airflow other than the airflow caused by the suction. Since the air is transported, the dust left behind by the rebound due to the wall collision can be reliably sucked from the suction port. In addition, since the blowout air is emitted at a flow rate greater than the flow rate of the suction air flowing from the gap between the lower surface of the suction tool body and the surface to be cleaned, heavy dust such as pebbles must be transported to the suction port by air. Will be able to.

  The suction tool for a vacuum cleaner of the present invention forcibly collects dust scraped out by the rotating brush from the suction port, so that dust can be reliably collected without being left behind.

Central longitudinal cross-sectional view of the suction tool in Embodiment 1 of this invention Configuration diagram in the same embodiment Vertical sectional view showing the behavior of dust in the same embodiment Partial sectional view showing dust transporting action in the same embodiment External front view in the same embodiment External side view of the same embodiment The fragmentary sectional view which showed the time of the blowing stop in the embodiment Longitudinal sectional view showing the configuration of Embodiment 2 of the present invention Cross-sectional view in the same embodiment Partial configuration diagram showing Embodiment 3 of the present invention Cross-sectional view in the same embodiment A longitudinal sectional view showing the configuration of the fourth embodiment of the present invention Cross-sectional view in the same embodiment Configuration diagram in Embodiment 5 of the present invention Partial enlarged view of the lower end of FIG.

1st invention provides the opening part for dust absorption in the lower surface of a suction tool main body, The rotating brush storage chamber provided with the rotating brush hold | maintained rotatably in a part of said opening part, The said opening part In the suction tool provided with a suction port communicated in the vicinity of the substantially central portion of the suction brush, a partition is formed between the rotary brush storage chamber and the opening by the walls on both sides of the suction port. A flow path body is formed, and air outlets for injecting blown air from a blower are provided at both ends of the flow path body, and the air outlets are directed toward the suction port so as to inject the blown air. configure, the blowing wind, than the flow rate of the suction air flowing through the gap between the lower surface and the cleaning surface of the suction tool body which is generated by the suction pressure, by which is adapted to emit a large flow rate, rotary brush Dust scraped from the surface to be cleaned with The dust that bounces off after colliding with the wall on both sides of the suction port is forcibly transported to the suction port by a blowout airflow other than the airflow caused by suction. Dust can be sucked from the suction port. In addition, since the blowout air is emitted at a flow rate greater than the flow rate of the suction air flowing from the gap between the lower surface of the suction tool body and the surface to be cleaned, heavy dust such as pebbles must be transported to the suction port by air. Will be able to.

According to a second aspect of the present invention, there is provided an opening for sucking dust on the lower surface of the suction tool body, a rotating brush storage chamber having a rotating brush rotatably held in a part of the opening, and the opening In the suction tool provided with a suction port communicated in the vicinity of the substantially central portion of the suction brush, a partition is formed between the rotary brush storage chamber and the opening by the walls on both sides of the suction port. Forming a channel body
The flow passage body is provided with air outlets for injecting air blown from a blower at both ends thereof, and the air outlet is configured to direct the air outlet toward the suction port, and the air outlet wind flows along the suction port on both sides of the wall, and to flow over the height direction of the wall, by which the shape of the air outlet in a slit form, dust scraped out by the rotating brush Even if the air is blown to any height position on the wall surfaces on both sides of the suction port, the blown air blows against it.

3rd invention provides the opening part for dust absorption in the lower surface of the suction tool main body, The rotating brush storage chamber provided with the rotating brush hold | maintained rotatably in a part of said opening part, The said opening part In the suction tool provided with a suction port communicated in the vicinity of the substantially central portion of the suction brush, a partition is formed between the rotary brush storage chamber and the opening by the walls on both sides of the suction port. A flow path body is formed, and air outlets for injecting blown air from a blower are provided at both ends of the flow path body, and the air outlets are directed toward the suction port so as to inject the blown air. constitute, to the suction port on both sides of the wall, by the plurality of forming the groove toward the suction port from the air outlet, a dust riding on blowing wind smoothly along the grooves of the suction opening amount side Air can be transported to the suction port.

4th invention provides the opening part for dust absorption in the lower surface of the suction tool main body, The rotating brush storage chamber provided with the rotating brush hold | maintained rotatably in a part of said opening part, The said opening part In the suction tool provided with a suction port communicated in the vicinity of the substantially central portion of the suction brush, a partition is formed between the rotary brush storage chamber and the opening by the walls on both sides of the suction port. A flow path body is formed, and air outlets for injecting blown air from a blower are provided at both ends of the flow path body, and the air outlets are directed toward the suction port so as to inject the blown air. configure, the outlet, the rotary brush is in the range of about 90 ° from the ground position toward the suction opening side in the rotation direction of the surface to be cleaned, so that the blow air strikes the brush tip of the rotary brush The hair on the tip of the rotating brush. To work is action to remove again in the blowing wind over Tsu, it is possible to suppress the winding of the hair of the rotating brush.

5th invention provides the opening part for dust absorption in the lower surface of the suction tool main body, The rotating brush storage chamber provided with the rotating brush hold | maintained rotatably at a part of said opening part, The said opening part In the suction tool provided with a suction port communicated in the vicinity of the substantially central portion of the suction brush, a partition is formed between the rotary brush storage chamber and the opening by the walls on both sides of the suction port. A flow path body is formed, and air outlets for injecting blown air from a blower are provided at both ends of the flow path body, and the air outlets are directed toward the suction port so as to inject the blown air. configure, the said air outlet for emitting the blowing wind, the air outlet a which emits the air blowing toward the suction port, both of the air outlet B for emitting air blowing toward the cleaning surface combines The bearings on both sides of the rotating brush It became able to scrape out dust by, by blowing air outlet B, since that would scrape out the dust, so that it is scraped dust from a cleaning surface across the width of the suction unit.

In particular, in the sixth invention, in any one of the first to fifth inventions, the air intake port of the blower that generates the blown air is configured on the upper surface of the suction tool main body, so that the blower is located above the suction tool. In order to suck the air, the dust floating by the front and back movement of the suction tool is also sucked by the blower, and the sucked dust is ejected from the blowout port and sucked from the suction port.

7th invention provides the opening part for dust absorption in the lower surface of the suction tool main body, The rotating brush storage chamber provided with the rotating brush hold | maintained rotatably in a part of said opening part, The said opening part In the suction tool provided with a suction port communicated in the vicinity of the substantially central portion of the suction brush, a partition is formed between the rotary brush storage chamber and the opening by the walls on both sides of the suction port. A flow path body is formed, and air outlets for injecting blown air from a blower are provided at both ends of the flow path body, and the air outlets are directed toward the suction port so as to inject the blown air. constitute, at both ends of the rotary brush which is rotated by a drive motor built in the suction tool body, by the concatenation of blower fan for generating the blowing air, the blower of the blow shorter piping passage to outlet from For reducing piping loss It is therefore, can be generated efficiently blowing wind.

According to the eighth aspect of the invention, since the vacuum cleaner provided with the suction tool according to any one of the first to seventh aspects described above, the dust scraped out by the rotating brush is transported to the suction port by the blowing air, Even with a weak suction force, air can be transported from the suction port to the dust collecting portion provided in the cleaner body, so that power consumption can be suppressed.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the present embodiment.

(Embodiment 1)
The suction tool for a vacuum cleaner in the embodiment of the present invention will be described with reference to the drawings.

  1 and 2 are connected via a flexible hose (not shown) and an extension pipe (not shown) connected to a vacuum cleaner body (not shown) equipped with an electric blower for generating suction air. The suction tool 1 rotates in the vertical direction and the circumferential direction between the suction tool body 2 that collects dust by scraping dust from the surface to be cleaned, and the suction tool body 2 and the extension pipe. It is comprised with the connection pipe 3 connected freely.

  The suction tool main body 2 is sandwiched between an upper case 4 and a lower case 5, and an upper case 4 and a lower case 5, and constitutes an outer shell from a bumper 6 that acts as a buffer against an obstacle such as a wall. Reference numeral 3 denotes a bearing portion 7 configured to be sandwiched between the upper case 4 and the lower case 5, and pivotally supports the rotating pipe 8 of the connecting pipe 3 so as to be rotatable in the vertical direction. The connecting pipe 3 has a joint pipe 9 attached to the rotary pipe 8 so as to be rotatable in the circumferential direction, and the joint pipe 9 also has a fitting portion (not shown) with the extension pipe. Yes.

The suction tool main body 2 has an opening 10 at a portion in contact with a lower surface to be cleaned, and constitutes a rotating brush storage chamber 12 for storing a rotating brush 11 for scraping dust from the surface to be cleaned. The rotary brush storage chamber 12 can be detachably mounted. A suction port 13 for sucking the dust scraped by the rotary brush 11 is disposed behind the rotary brush storage chamber 12, and the suction port 13 is configured to communicate with the connection pipe 3.

  A plurality of types of bristle brushes 14 are spirally arranged on the rotating brush 11, and each bristle brush 14 is combined with bristle brushes 14 corresponding to the characteristics of the surface to be cleaned such as a wooden floor and a carpet. The rotary brush 11 is configured to be driven to rotate via a belt 16 by a drive motor 15 built in the suction tool body 2, and the rotation direction is in the order of the direction in which the suction tool 1 is operated forward. The direction is the rotation.

  The reason for setting the rotation direction is to reduce the operability of the vacuum cleaner. Further, the rotating brush 11 needs to increase the rotating torque in order to ensure the scraping force from the surface to be cleaned, and the end of the rotating brush 11 with respect to the number of gear teeth of the pulley A17 connected to the drive motor 15. The number of gear teeth of the pulley B18 provided in the motor is reduced to 12:25, and the rotational speed of the rotating brush 11 is set to about 2500 r / min on the carpet. Bearing holders 19 are provided at both ends of the rotating brush 11 and are mounted so as to be inserted into mounting recesses constituted by the upper case 4 and the lower case 5 of the suction tool body 2.

  The opening width of the suction port 13 arranged behind the rotary brush storage chamber 12 is about 1/4 with respect to the longitudinal dimension of the rotary brush storage chamber 12, and is arranged in the vicinity of the approximate center of the rotary brush storage chamber 12. Both sides of the suction port 13 are provided with wall surfaces 20 for forming a partition. Further, between the rotary brush storage chamber 12 and the suction port 13, there is formed a flow path body 21 defined by the rotary brush storage chamber 12, the suction port 13, and the wall surfaces 20 on both sides of the suction port. The path body 21 forms a space having a width of about 10 mm.

  At both ends of the flow passage body 21, there are arranged blow pipes 23 provided with blow outlets 22 for injecting blow air toward the suction port 13 substantially in parallel with the longitudinal direction of the rotary brush 11. 23 is connected through a pipe 25 to a blower 24 different from the electric blower built in the cleaner body. And the air intake port of this air blower 24 is arrange | positioned at the upper part of the upper case 4 of the suction tool main body 2, and the air introduction port 26 of the air blower 24 has the opening part 27 opened upwards with respect to the suction tool main body 2. It is connected.

  Moreover, the opening part 27 is the shape opened in the slit shape in parallel with the longitudinal direction of the suction tool main body 2, and when the air blower 24 does not take in air, the rotatable shutter 28 is provided in the front opening. The spring is biased in the closing direction.

  Next, the structure of the flow path body 21 and its effect | action are demonstrated.

  As shown in the figure, the flow path body 21 is partitioned between the rotating brush 11 and the wall surfaces 20 on both sides of the suction port 13 with a substantially uniform width in the longitudinal direction from both ends toward the suction port 13. The outlet 22 of the outlet pipe 23 provided on both sides of the flow path body 21 is set with an opening angle and an opening front area so that the injection flow of the blowing air faces the suction port 13. Yes. Moreover, the blower outlet 22 is arrange | positioned with respect to the to-be-cleaned surface side with respect to the space position of the up-down direction of the flow-path body 21. FIG.

  The rotation of the rotary brush 11 causes the bristle brush 14 to scrape dust on the surface to be cleaned while bending with the surface to be cleaned. It is blown off so as to cross the flow path body 21 toward the wall surfaces 20 on both sides, and a part of them is collided with the wall surfaces 20 on both sides of the suction port (FIG. 3).

Then, as shown in FIG. 4, the dust blown out by the rotating brush 11 and the wall surfaces on both sides of the suction port are blown off by injecting the blowing air from the air outlets 22 provided on both sides of the flow path body 21. The dust that bounces off when it collides with the air 20 is forcibly pneumatically transported to the suction port 13 on the flow of the blowing air separately from the suction air generated by the electric blower of the main body of the cleaner. The action of sucking dust works. Moreover, since the air intake port of the blower 24 is provided on the upper surface of the suction tool main body, dust floating above the suction tool 1 can be sucked.

  In the present embodiment, the blower 24 is arranged and configured in the suction tool main body 2, but it may be provided on the extension pipe or the handle portion at the tip of the hose, and the suction tool 1 may be configured to flow the blowing air through the connection pipe. Good. In this case, if the suction tool 1 is removed, another cleaning operation can be performed in which dust at uneven portions where the tip of the suction port does not enter, such as a sash groove, is blown once and then sucked.

  Here, the blowout air of the flow volume of about 25-40 L / min is discharged | emitted from the blower outlet 22, and the flow velocity injects at the speed | rate of about 8-13 m / sec. Moreover, the clearance gap 29 provided in order to make suction | inhalation air flow in between the lower case 5 and the to-be-cleaned surface of the suction tool main body 2 shown to FIG. 5, FIG. The flow rate of about 900 L / min flows from the front gap 29 and the flow rate of about 60 to 300 L / min is sucked from the notch portions 30 on both sides of the suction tool body. The flow velocity is about 13 m / sec.

  The injection flow rate and the injection speed of the blowing air described above are smaller values than the suction air flowing from the gap between the lower case 5 of the suction tool body 2 and the surface to be cleaned, The suction air flowing from the gap linearly enters at the inlet at the above-described flow velocity, but the flow suddenly enters the space where the rotary brush storage chamber 12 and the flow path body 21 are expanded. Because it expands, the flow velocity decreases at once.

  In contrast, the blowout air injected from the blowout port 22 flows almost linearly to the suction port with a small expansion from the opening area of the blowout port 22 due to the injection pressure, and the flow velocity of the blowout air is not substantially reduced. It reaches the suction port (two-dot difference line in FIG. 4). The flow rate of the suction air that is forcibly pneumatically transported to the suction port 13 with the dust blown by the rotary brush 11 by the flow velocity of the blowout air, and is sucked from the gap provided in the lower periphery of the suction tool body 2. , And even if it is smaller than the flow velocity, the air transport action is effective.

  Here, when the flow rate of the blown air is 8 to 13 m / sec, the higher the flow rate, the greater the effect of transporting the dust, and the flow rate of the suction air flowing from the gap provided around the lower part of the suction tool body 2. If the blowing air is injected at a higher injection speed, the effect is greatly increased. On the other hand, if the injection flow velocity of the blown air is too small, the dust blown off by the rotating brush collides with the wall surfaces on both sides of the rear suction port as shown in FIG. In addition, since the suction tool 1 moves forward while the movement is disturbed in the space of the flow path body 21, a leftover occurs.

  The air transportation effect of the dust by the blowing air is caused by the decrease in the flow velocity of the blowing air due to the injection pressure until the suction port 13, and the opening area of the gap provided in the lower periphery of the suction tool main body is reduced. Even if it is changed, as described above, the suction air that enters from the gap is greatly reduced in the flow velocity when it enters the enlarged space of the rotary brush storage chamber 12 and the flow path body 21, so that it is the same as the blowout air. It is difficult to obtain the effect.

In addition, with regard to the dust air transport action by this blowing air, there is a blowing air with the “weak mode” setting that suppresses the output of the vacuum cleaner body, and the blowing wind with the “strong mode” setting that the output of the vacuum cleaner body is set. Compared with the conditions when the cleaning is stopped, since the rotation speed of the rotary brush 11 of the suction tool is generally the same even if the output of the cleaner body is changed, the conditions for scraping dust from the surface to be cleaned are the same. However, since the suction wind entering from the gap portion provided around the lower part of the suction tool main body 2 becomes stronger when the “strong mode” is selected, the “strong mode” has better dust collection.

  However, under the condition of “low mode” with blowing air, the dust scraped by the rotating brush 11 changes to the suction air toward the suction port 13 and is transported by air, so the dust collection performance equivalent to “strong mode” is achieved. Be able to get. In that sense, by combining the rotating brush 11 and the blowout air, it is possible to suppress the power consumption of the cleaner body while maintaining high dust collection.

(Embodiment 2)
8 and 9 show the configuration of the air outlet in the second embodiment. In addition, about the structure which overlaps with Embodiment 1 mentioned above, the same code | symbol is described and description is abbreviate | omitted.

  As shown in FIGS. 8 and 9, the outlet pipe 23 is positioned near the wall surface 20 on both sides of the suction port, and the shape of the outlet 22 is parallel to the height direction of the wall surface 20 on both sides of the suction port. It is comprised so that it may become. A plurality of rows of groove portions 31 are formed on the wall surfaces 20 on both sides of the suction port from the position of the blowout port 22 to the suction port 13 in parallel with the flow direction of the blowout air.

  The dust scraped out by the rotating brush 11 will fly everywhere in the height direction of the wall surface 20 when it is blown off toward the wall surface 20 on both sides of the suction port behind the rotating brush 11. If the structure of the blowout port 22 is taken, the blown air is emitted with the entire width in the height direction of the wall surface 20 on both sides of the suction port. I will ride the flow. Furthermore, since the groove part along the flow of the blowing air is formed in the wall surface 20 on both sides of the suction port, the blowing air injected from the air outlet 22 flows more linearly along the wall surface 20. In addition, since the dust on the blowing air also flows along the groove portion 31, the effect of air transportation to the suction port 13 can be further improved.

(Embodiment 3)
The figure has shown the structure of the blower outlet in Embodiment 3. FIG. In addition, about the structure which overlaps with Embodiment 1 mentioned above, the same code | symbol is described and description is abbreviate | omitted.

  As shown in FIGS. 10 and 11, the blowout air 23 is emitted to the blowout pipe 23 toward the surface to be cleaned below the blowout pipe 23 and the blowout outlet A <b> 32 that emits the blowout wind toward the suction port 13. Air outlet B33 is provided. Here, the number of the opening holes is set so that the total opening area of the outlet B33 is 30 to 50% with respect to the opening area of the outlet A32.

  Usually, the position that becomes the bearing portion of the rotating brush 11 cannot constitute the bristle brush 14 of the rotating brush 11, so that it is sucked up by the suction air from the gap provided in the lower periphery of the suction tool body 2 described above, Alternatively, a fixed brush (not shown) is arranged on the lower surface of the lower case 5 separately from the rotating brush 11, and the positions of the bearing portions on both sides of the rotating brush 11 are also configured to collect dust. Since the suction air entering from the lower periphery of the tool body 2 is in the direction of the flow in the lateral direction, there is little effect of scraping dust on the surface to be cleaned, particularly on the carpet. Moreover, in the case of the fixed brush attached to the lower surface of the lower case 5, since the brush continues to press down on the surface to be cleaned, dust may be tangled around the brush tip.

Therefore, if the configuration of the third embodiment is adopted, the dust blown off by the rotary brush 11 is not only forcibly pneumatically transported to the suction port 13 by the air outlet A32, but conventionally, the dust cannot be collected. Since the blowing air is blown from the outlet B33 to the surface to be cleaned corresponding to the bearing portion of the rotating brush 11 almost perpendicularly to the surface to be cleaned, dust can be raised and collected. It becomes. Here, if fixed brushes are alternately arranged between the opening holes of the air outlet B33, the dust collecting property is improved from the surface to be cleaned, and at the same time, the dust entangled with the bristles of the brush is blown off by the air blown from the air outlet B. Therefore, the entanglement of dust as in the conventional case can be suppressed.

(Embodiment 4)
The figure has shown the structure of the blower outlet in Embodiment 4. FIG. In addition, about the structure which overlaps with Embodiment 1 mentioned above, the same code | symbol is described and description is abbreviate | omitted.

  As shown in FIGS. 12 and 13, the opening center position of the air outlet 22 is about 75 ° from the surface to be cleaned of the rotating brush 11 and 3 to 7 mm from the tip of the bristle brush 14 of the rotating brush 11. They are arranged and arranged so as to coincide on the distance trajectory. Furthermore, the blower outlet 22 was made into the structure inclined 5-15 degrees toward the to-be-cleaned surface.

  In the fourth embodiment configured as described above, the blowout air emitted from the air outlet 22 rotates while simultaneously transporting the dust scraped from the surface to be cleaned by the rotary brush 11 toward the suction port 13. Since the blowing wind hits the bristles of the brush 11, it becomes possible to blow off fiber dust that easily gets entangled with the ends of the bristles 14. In addition, since the blowing air is configured to strike the surface to be cleaned from an oblique direction, it is possible to obtain the effect of blowing dust from the surface to be cleaned with the blowing air, and further to the dust collection effect by the rotating brush and the blowing air. Can be improved.

(Embodiment 5)
The figure has shown the structure of the air blower which generates the blowing wind inject | emitted from the blower outlet in Embodiment 5. FIG. In addition, about the structure which overlaps with Embodiment 1 mentioned above, the same code | symbol is described and description is abbreviate | omitted.

  As shown in FIGS. 14 and 15, a fan case 35 in which a blower fan 34 is arranged on both ends of the rotary brush 11 is constituted by an upper case 4 and a lower case 5, and the blower fan 34 is an end of the rotary brush 11. The amplifying gear 36 is connected to a pulley B18 provided in the section so as to rotate. Since the rotary brush 11 is configured to decelerate from the drive motor 15 to increase the rotational torque, the blower fan 34 is connected via the speed increasing gear 36 so that the fan rotational speed is about 10,000 r / min or more. The rotational speed is amplified. The blower pipe 23 is connected to the end of a fan case 35 that houses the blower fan 34, and an opening 37 for taking in air is provided at the other end.

  The blower fan 34 is rotationally driven from the drive motor 15 via the rotary brush 11, takes in air from the opening 37, and injects the taken-in air as blown air from the blowout port 22 through the blowout pipe 23.

  In the fifth embodiment configured as described above, the blower fan 34, which is the source of the blown air, is arranged on both sides of the rotating brush 11, so that the pipe length from the blower fan 34 to the outlet 22 is short. The pipe loss can be suppressed, and at the same time, the drive source for rotating the blower fan 34 is also used as the drive motor 15 of the rotary brush 11, so that the weight of the suction tool 1 can be reduced.

As described above, the suction tool for a vacuum cleaner according to the present invention, in the space provided between the rotating brush storage chamber and the suction port, by injecting the blowing air from both ends toward the suction port, In order to forcibly transport the dust scraped from the surface to be cleaned with a rotating brush and the dust that bounces off and collides with the walls on both sides of the suction port to the suction port by airflow other than the airflow generated by suction. Dust that has been left behind by rebounding due to a collision can be reliably sucked from the suction port, and the dust collection performance of the suction tool can be improved.

DESCRIPTION OF SYMBOLS 10 Opening 11 Rotating brush 12 Rotating brush storage chamber 13 Suction port 15 Drive motor 20 Wall surface 21 Flow path body 22 Air outlet 24 Air blower 31 Groove part 32 Air outlet A
33 Air outlet B
34 Blower Fan

Claims (8)

An opening for sucking dust is provided on the lower surface of the suction tool body, and a part of the opening includes a rotating brush storage chamber having a rotating brush that is rotatably supported, and a portion near the center of the opening. In the suction tool provided with the suction port that communicated,
Between the rotating brush storage chamber and the opening, a flow path body that is partitioned by the rotating brush storage chamber and the walls on both sides of the suction port is formed,
At both ends of the flow path body, a blower outlet for injecting blown air from a blower is provided,
The blower outlet configures the direction of the blower outlet so as to inject a blown wind toward the suction port,
Suction device the blowing wind, than the flow rate of the suction air flowing through the gap between the lower surface and the cleaning surface of the suction tool body which is generated by the suction pressure, characterized in that exit at the large flow rate. An opening for sucking dust is provided on the lower surface of the suction tool body, and a part of the opening includes a rotating brush storage chamber having a rotating brush that is rotatably supported, and a portion near the center of the opening. In the suction tool provided with the suction port that communicated,
Between the rotating brush storage chamber and the opening, a flow path body that is partitioned by the rotating brush storage chamber and the walls on both sides of the suction port is formed,
At both ends of the flow path body, a blower outlet for injecting blown air from a blower is provided,
The blower outlet configures the direction of the blower outlet so as to inject a blown wind toward the suction port,
The blowing wind flows along the suction port on both sides of the wall, and to flow over the height direction of the wall surface, suction unit, characterized in that the shape of the air outlet in a slit shape. An opening for sucking dust is provided on the lower surface of the suction tool body, and a part of the opening includes a rotating brush storage chamber having a rotating brush that is rotatably supported, and a portion near the center of the opening. In the suction tool provided with the suction port that communicated,
Between the rotating brush storage chamber and the opening, a flow path body that is partitioned by the rotating brush storage chamber and the walls on both sides of the suction port is formed,
At both ends of the flow path body, a blower outlet for injecting blown air from a blower is provided,
The blower outlet configures the direction of the blower outlet so as to inject a blown wind toward the suction port,
Wherein the suction port on both sides of the walls, suction tool, characterized in that the groove and the plurality of formed toward the suction port from the air outlet. An opening for sucking dust is provided on the lower surface of the suction tool body, and a part of the opening includes a rotating brush storage chamber having a rotating brush that is rotatably supported, and a portion near the center of the opening. In the suction tool provided with the suction port that communicated,
Between the rotating brush storage chamber and the opening, a flow path body that is partitioned by the rotating brush storage chamber and the walls on both sides of the suction port is formed,
At both ends of the flow path body, a blower outlet for injecting blown air from a blower is provided,
The blower outlet configures the direction of the blower outlet so as to inject a blown wind toward the suction port,
The air outlet, the rotary brush in the range of the suction port side toward approximately 90 ° in the rotational direction from the grounding position of the surface to be cleaned, it was configured to wind blowing on the brush tip of the rotary brush hits Inhaler characterized by . An opening for sucking dust is provided on the lower surface of the suction tool body, and a part of the opening includes a rotating brush storage chamber having a rotating brush that is rotatably supported, and a portion near the center of the opening. In the suction tool provided with the suction port that communicated,
Between the rotating brush storage chamber and the opening, a flow path body that is partitioned by the rotating brush storage chamber and the walls on both sides of the suction port is formed,
At both ends of the flow path body, a blower outlet for injecting blown air from a blower is provided,
The blower outlet configures the direction of the blower outlet so as to inject a blown wind toward the suction port,
Wherein the blowing air the air outlet for emitting, characterized in that both the outlet A which emits the air blowing toward the suction port, both of the air outlet B for emitting blowing air toward the surface being cleaned A suction tool. The suction tool according to any one of claims 1 to 5 , wherein an air intake port of a blower that generates blown air is configured on an upper surface of the suction tool body. An opening for sucking dust is provided on the lower surface of the suction tool body, and a part of the opening includes a rotating brush storage chamber having a rotating brush that is rotatably supported, and a portion near the center of the opening. In the suction tool provided with the suction port that communicated,
Between the rotating brush storage chamber and the opening, a flow path body that is partitioned by the rotating brush storage chamber and the walls on both sides of the suction port is formed,
At both ends of the flow path body, a blower outlet for injecting blown air from a blower is provided,
The blower outlet configures the direction of the blower outlet so as to inject a blown wind toward the suction port,
The rotary brush is for rotating the built-in drive motor in the suction tool body, the opposite ends of said rotary brush, a suction device, characterized in that the concatenation of blower fan for generating the blowing air. The vacuum cleaner provided with the suction tool of any one of Claim 1 to 7 .