JP2007111087A - Suction tool and electric vacuum cleaner using the same - Google Patents

Abstract

An object of the present invention is to provide a suction tool that enables a cleaning function required for every surface to be cleaned and is thin and easy to use for clearance cleaning.
A suction port having an opening at the bottom surface of the suction tool, an inclined portion formed by inclining a part of the bottom surface of the suction tool toward the suction port, and a surface to be cleaned on the inclined portion. A carpet that is sucked into the suction port 21 by operating the suction tool 15 forward or backward by forming a plurality of injection ports 23 that are open to introduce outside air into the suction port 21 Since the hair covers one of the front and rear of the inner wall of the suction port 21 but the opposite side is opened, the targeted cleaning performance can be exhibited depending on the type of the surface to be cleaned. In addition, it is possible to improve the usability by making the inclined portion 25 thin.
[Selection] Figure 5

Description

  The present invention relates to a suction tool having a function of improving dust collection performance and a vacuum cleaner equipped with the suction tool.

  A suction tool mounted on a conventional vacuum cleaner of this type has a concave groove formed on the bottom surface of the suction tool, and a brush or a blade-like one is provided in the concave shape (see, for example, Patent Document 1).

FIG. 6 shows a suction tool mounted on a conventional vacuum cleaner described in the publication. As shown in FIG. 6, a plurality of concave flow channels 2 are provided on the bottom surface of the suction tool 1 so that the front side of the suction tool 1 communicates with the opening of the bottom surface of the suction tool 1. It is comprised from the braid | blade 4 which has flexibility.
Japanese Patent No. 3421582

  However, in the conventional configuration, since the concave flow channel is provided on the bottom surface of the suction tool, when the suction tool is used on the carpet having a long bristle, the carpet enters the concave flow channel and the concave flow channel is buried. There existed a subject that the performance of a suction tool fell. In addition, if the concave channel is set deeply so that it does not fill with the carpet hair entering, the thickness of the suction tool will generally increase, making it difficult for the suction tool to enter the gap formed under furniture etc. There was also a problem that it was bad.

  SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and an object thereof is to provide a vacuum cleaner that enables a cleaning function that is originally required for every surface to be cleaned and is thin and easy to use for clearance cleaning.

  In order to solve the above-described conventional problems, a suction tool mounted on the vacuum cleaner of the present invention has a communication pipe through which dust passes through the rear part of the suction tool, and a surface facing the surface to be cleaned of the suction tool. A communication port that communicates the communication pipe with the suction port, an inclined portion that is formed by inclining a part of the bottom surface of the suction tool toward the suction port side away from the surface to be cleaned, A plurality of outlets are formed by opening so as to introduce outside air into the suction port toward the cleaning surface side.

  As a result, when the suction tool is operated forward or backward, the carpet sucked into the suction port covers either the front or the rear of the inner wall of the suction port, but the opposite side is opened. By providing the injection port corresponding to the concave flow channel in the conventional configuration in the inclined portion inclined in the suction port, one side is always opened when the front and rear operations are performed. Dust on the surface to be cleaned is swept out by the sucked-in air that has flowed in, and it is possible to eliminate the situation where the intended cleaning performance cannot be exhibited depending on the type of surface to be cleaned. In addition, since the inclined part is constructed by inclining from the bottom of the suction tool to the inside of the suction port, it is not necessary to touch the design dimensions significantly from the current configuration when designing the inclined part, and the cleaning performance with a thin and simple structure Can be improved.

  The suction tool mounted on the electric vacuum cleaner of the present invention can eliminate a situation in which the intended cleaning performance cannot be exhibited depending on the type of the surface to be cleaned.

  The first invention includes a suction tool that cleans the surface to be cleaned, a communication pipe that allows dust to pass through a rear portion of the suction tool, a suction port that has an opening facing the surface to be cleaned of the suction tool, and communication. A communication port that communicates the pipe with the suction port, an inclined portion formed by inclining a part of the bottom surface of the suction tool toward the suction port side away from the surface to be cleaned, and the inclined portion toward the surface to be cleaned By forming a plurality of spouts that are open to introduce outside air into the suction port, the carpet that is sucked into the suction port when the suction tool is operated in the forward or backward direction is moved forward of the inner wall of the suction port. Or, either one of the rear will be masked, but the opposite side will be opened, and by providing the injection port corresponding to the concave flow channel in the conventional configuration in the inclined part inclined in the suction port, One of them will always be opened when operating back and forth. Ri, sweeping the dust on the surface to be cleaned by the suction air that has flowed through the injection port, can be eliminated that the cleaning performance was aimed such that can not be exhibited depending on the type of surface to be cleaned. In addition, since the inclined part is constructed by inclining from the bottom of the suction tool to the inside of the suction port, it is not necessary to touch the design dimensions significantly from the current configuration when designing the inclined part, and the cleaning performance with a thin and simple structure Can be improved.

  The second invention provides a pair of inclined surfaces formed in accordance with the longitudinal direction of the suction tool and a pair of inclined surfaces so as to be opposed to the suction port, and similarly provided as an outlet for introducing outside air into each inclined surface. By operating the suction tool forward or rearward, the carpet sucked into the suction port covers either the front or the rear of the inner wall of the suction port, but the opposite side is opened. Since the injection port corresponding to the concave flow channel in the conventional configuration is provided in the inclined portion inclined in the suction port, one of the injection ports is always opened when the front-rear operation is performed. The dust on the surface to be cleaned can be efficiently swept away by the suction air flowing in through the injection port, and the dust collection performance can be improved.

  According to the third aspect of the present invention, the angle between the inclined surface and the surface to be cleaned is gradually increased toward the communication port, whereby the vacuum pressure applied to the suction device generates the maximum force at the communication port portion, Because it is distributed so as to weaken at the left and right ends of the tool, the force can be evenly distributed according to the vacuum pressure by making the inclined surface a large angle at the communication port and a small angle at the left and right ends. Since the pressure applied to each injection port is also equalized, the injection port can be operated effectively with the full width of the suction tool, and the dust on the surface to be cleaned is efficiently swept away by the suction air flowing in through the injection port. Can be improved.

  In the fourth aspect of the present invention, the air around the suction tool is sucked from the introduction port and opened to the suction port from the injection port by opening the top surface or the side surface and introducing the outside air to the ejection port. As a result, air is sucked in from the inlet so as to reduce the pressure that the suction tool adsorbs to the surface to be cleaned, and this air is introduced into the bottom face of the suction tool by the injection port, so dust floating around the suction tool is sucked in. In addition, the operating force can be improved by lowering the suction pressure applied to the bottom surface of the suction tool.

  According to the fifth aspect of the present invention, by connecting the inlet and the outlet in a one-to-one manner, the pressure applied to the plurality of outlets arranged on the bottom surface of the suction tool is located at the center of the suction tool. It is high and tends to decrease as it goes to both ends, and the pressure applied to the introduction port changes according to the above law by connecting the introduction port and the injection port, so the air volume sucked from the introduction port automatically depends on each position Since the pressure of the wind that is adjusted and sucked from the injection port can be improved efficiently, the dust collection capability of the suction tool can be improved.

  A sixth invention includes a dust collection container that collects dust from the suction tool, an electric blower that generates suction air that collects dust, and a vacuum cleaner body that includes the dust collection container and the electric blower inside. By connecting the suction tool according to any one of the first to fifth inventions, it is possible to mount the suction tool that can sufficiently exhibit the intended suction ability and is thin and excellent in dust collection performance. Cleaning work can be performed efficiently.

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

(Embodiment 1)
FIG. 1 shows a perspective view of a vacuum cleaner equipped with a suction tool according to Embodiment 1 of the present invention.

  In FIG. 1, the vacuum cleaner 5 is generally configured by connecting a hose 11, an extension pipe 13, and a suction tool 15 to the vacuum cleaner body 6.

  The electric vacuum cleaner main body 6 is provided with an electric blower 7 for generating suction air, and a dust collection container 8 for storing dust collected by the suction air is detachably provided in front of the main body 6. It is housed inside the vacuum cleaner body 6 by a dust collection container lid 9 that can be freely opened around.

  A connecting pipe 10 is provided at one end of the hose 11 so as to connect the dust collecting container 8 and the hose 11, and a handle 12 having a control switch for controlling the electric blower 7 of the vacuum cleaner body 6 is provided at the opposite end. It has been.

  An extension pipe 13 through which dust passes is detachably connected to the handle 12 via a hose 11, and a suction tool 15 is connected to the opposite end of the handle 12 via a communication pipe 14.

  In FIG. 2, an arm portion 16 that pivots up and down freely is provided at a substantially central rear portion of the suction tool 15, and a communication pipe 14 that is pivotably connected to the arm portion 16 left and right. The upper member 18 constituting the upper outer portion of the suction tool 15 holds the arm portion 16, and the upper member 18 is provided with a plurality of inlets 19 that are openings for sucking outside air in the front-rear direction of the suction tool 15. . Further, a bumper 17 formed of a soft material that is held by the upper member 18 and prevents damage when the suction tool 15 collides with a wall or furniture is formed on the suction tool 15 from the front surface to the side surface and part of the rear surface. Attached across.

  In FIG. 3, the outer member of the suction tool 15 is formed together with the upper member 18, and the lower member 20 forming the bottom surface portion of the suction tool 15 and the surface to be cleaned can be operated smoothly without being damaged while maintaining a certain distance. As described above, the lower member 20 is provided with a plurality of running bodies 24 made of a roller body or a raised cloth. The lower member 20 has a suction port 21 that opens toward the surface to be cleaned and is provided along the longitudinal direction of the suction tool 15, and a communication port 22 that connects the suction port 21 and the arm portion 16 is a suction port. 21 is provided at a substantially central portion.

  In addition, an inclined portion 25 is provided in which a part of the lower member 20 is inclined toward the inside of the suction port 21 in a direction away from the surface to be cleaned, and the inclination angle increases toward the communication port 22. Are respectively provided in the front-rear direction of the suction tool 15. The inclined portion 25 is provided with a plurality of injection ports 23 communicating with the introduction port 19.

  The planar shape of the injection port 23 is such that the width located in the outer direction of the suction tool 15 is wide and the width is narrowed toward the suction port 21 side, and each of the injection ports 23 is directed toward the communication port 22. They are arranged radially.

  In FIG. 4, each of the inlet 19 and the injection port 23 is partitioned inside the suction tool 15 by a plurality of inner walls 26 so as to be connected one by one, and the inner wall 26, the upper member 18, and the lower member The communication room 27 is surrounded by a communication room 27.

  In FIG. 5, the cross-sectional shape of each of the injection ports 23 is configured by the rectifying plate 28 so as to expand toward the upper side of the suction tool 15 and to be squeezed downward.

  About the suction tool mounted in the electric cleaning comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, when the control switch on the handle 12 is turned on, the electric blower 7 is activated and suction air is generated. The suction air reaches the suction tool 15 through the hose 11 and the extension pipe 13. The suction air that has reached is sucked from the communication port 22. When the suction tool 15 is on the surface to be cleaned, the air inside the communication port 22 and the suction port 21 is sucked into a vacuum state. For this reason, suction air is generated between the lower member 20 and the surface to be cleaned, and dust on the periphery and the lower surface of the lower member 20 is sucked. The sucked dust is collected in the dust collection container 8.

  Further, when the suction port 21 is in a vacuum state, the air inside the communication chamber 27 is also sucked out from the injection port 23 by passing the communication chamber 27 through the injection port 23. Therefore, new air enters from the introduction port 19 and is ejected from the injection port 23.

  The injection port 23 is narrowed toward the suction port 21 side by the clear plate 28 and has a shape narrowed toward the communication port 22 side in a planar shape, so that the air injected from the injection port 23 is reduced. The flow velocity is accelerated downward and toward the communication port 22, and becomes a wind that ejects the surface to be cleaned through the slope portion 25, so that the effect of discharging dust on the surface to be cleaned can be further increased.

  On the carpet, the inclined portion 25 is closed by the hair of the carpet when the suction tool 15 is stopped. However, by operating the suction tool 15 forward, the hair of the carpet is crushed by the bottom surface of the lower member 20, and when the hair of the carpet is sucked into the suction port 21, the back of the suction tool 15 It sticks to the inclined part 25 located, and closes the inclined part 25 in the rear part. On the other hand, the hair of the carpet is crushed by the lower member 20 in the inclined portion 25 on the opposite end side, and the carpet hair does not completely block the inclined portion 25, and the space between the carpet hairs is not. In this way, the injection port 23 is opened with the aim of removing the dust between the hairs of the carpet. If the suction tool 15 is pulled forward, it will be in the opposite state, and either the front part or the rear part of the inclined part 25 will function on the carpet. By forming the inclined portion 25 between the suction port 21 and the lower member 20, it is possible to make a design that can suppress the total thickness of the suction tool 15.

  As described above, in the present embodiment, the original purpose is determined by the cleaning surface by providing the nozzle 23 on the inclined surface for blowing off the dust between the carpets and the hairs of the carpets to improve the dust collection performance. It can function without any problems.

  Moreover, the thickness of the suction tool 15 in the height direction can be suppressed due to the design that can maintain the function by taking a simple structure, and the suction tool 15 can easily enter the gap of furniture or the like.

  Further, since one of the injection ports 23 is always opened when the front and rear operations are performed, the dust on the surface to be cleaned can be efficiently swept away by the suction air flowing in through the injection ports, and the dust collection performance can be improved. .

  Further, since the pressure applied to each injection port 23 is also equalized, the injection port 23 can be operated effectively with the full width of the suction tool 15, and the dust on the surface to be cleaned is efficiently swept away by the suction air flowing in through the injection port 23. , Dust collection performance can be improved.

  Further, not only the dust floating around the suction tool 15 but also the suction force applied to the bottom surface of the suction tool 15 can be reduced to improve the operating force.

  In addition, the air volume sucked from the inlet 19 is automatically adjusted according to each position, and the pressure of the air sucked from the injection port 23 can be improved efficiently, so that the dust collection capability of the suction tool 15 is improved. Can do.

  Further, since air is sucked from the inlet 19 so as to reduce the pressure that the suction tool 15 adsorbs to the surface to be cleaned, and this air is introduced to the bottom surface side of the suction tool 15 by the injection port 23, it floats around the suction tool 15. In addition to sucking dust, the operating force can be improved by lowering the suction pressure applied to the bottom of the suction tool.

  In addition, the pressure applied to the plurality of injection ports 23 arranged on the bottom surface of the suction tool 15 tends to be higher as it is located at the center of the suction tool 15 and decreases toward both ends. As a result, the pressure applied to the inlet port also changes in accordance with the above-mentioned law. Therefore, the air volume sucked from the inlet port 19 is automatically adjusted according to each position, and the pressure of the wind sucked from the injection port 23 is efficiently improved. Therefore, the dust collection capability of the suction tool 15 can be improved.

  In addition, when the suction air is introduced into the injection port 23, the wider inlet side is easier to enter, and since the momentum of the suction air is accelerated by being constricted on the outlet side, the power of the suction air depends on the shape of the injection port 23. By improving, the dust collection capability of the suction tool 15 can be improved.

  In addition, when the suction air is introduced into the injection port 23, the wider inlet side is easier to enter, and since the momentum of the suction air is accelerated by being constricted on the outlet side, the power of the suction air depends on the shape of the injection port 23. By improving, the dust collection capability of the suction tool 15 can be improved.

  Moreover, the same effect can be acquired by taking the same structure also in the suction tool which provided the rotary brush rotationally driven by the drive device or wind power in the suction inlet 21 of this Embodiment.

  As described above, the suction tool according to the present invention can eliminate the possibility that the intended cleaning performance cannot be exhibited depending on the type of the surface to be cleaned, so that it has a function of improving the dust collection performance. It can also be applied to.

The perspective view of the vacuum cleaner carrying the suction tool in Embodiment 1 of this invention Top view of the suction tool Bottom view of the suction tool AA sectional view of the same suction tool in FIG. BB sectional view in FIG. 3 of the suction tool Bottom view of conventional suction tool

Explanation of symbols

6 Vacuum Cleaner Body 7 Electric Blower 8 Dust Collection Container 15 Suction Tool 19 Inlet 21 Suction Port 22 Communication Port 23 Injection Port 25 Inclined Portion

Claims (6)

A suction tool that cleans the surface to be cleaned, a communication pipe that allows dust to pass through the rear part of the suction tool, a suction port that opens to the surface of the suction tool that faces the surface to be cleaned, and a communication pipe that communicates with the suction port And a slanted part formed by inclining a part of the bottom surface of the suction tool toward the suction port side so as to be away from the surface to be cleaned, and introducing outside air into the suction port toward the surface to be cleaned. A suction tool formed with a plurality of spouts that are open. 2. The suction tool according to claim 1, wherein the inclined portion is formed according to a longitudinal direction of the suction tool, and the inclined portion and the jet port provided in the inclined portion are provided in a pair so as to face the suction port. . The suction tool according to claim 1 or 2, wherein an angle formed between the inclined portion and the surface to be cleaned is gradually increased toward the communication port. The suction tool according to any one of claims 1 to 3, further comprising an introduction port that opens toward a top surface or a side surface and guides outside air to a jet port. The suction tool according to claim 4, wherein the introduction port and the jet port are connected one-to-one to form a communication path. A dust collection container that collects dust from a suction tool, an electric blower that generates suction air that collects dust, an electric vacuum cleaner main body that includes the dust collection container and the electric blower, and 1 to 5 The vacuum cleaner which connected the suction tool of any one of these.

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