WO2012140870A1

WO2012140870A1 - Rotating brush for suction tool of electric vacuum cleaner and suction tool using same

Info

Publication number: WO2012140870A1
Application number: PCT/JP2012/002491
Authority: WO
Inventors: 羽田野　剛; ミンス金; 小立　徹; 道明小門; 英治菅
Original assignee: パナソニック株式会社
Priority date: 2011-04-14
Filing date: 2012-04-10
Publication date: 2012-10-18
Also published as: JP2012217798A; CN103476309A; TW201247158A; JP5726607B2

Abstract

A rotating brush provided with a plurality of linear brushes (11) that are formed around a rotating shaft body along the shaft line thereof, wherein the linear brushes (11) include a mixed linear brush (11A) which comprises, as a bristle material, a mixture of standard cross-section fibers (100) having a round or oval cross-sectional shape with modified cross-section fibers (110) having a cross-sectional shape with concave and/or convex parts. According to this structure, the dust-collecting performance of the rotating brush to be used in a suction tool of an electric vacuum cleaner can be improved while effectively preventing the bending of bristles of the linear brushes, even though using the modified cross-section fibers.

Description

Rotating brush of vacuum cleaner suction tool and suction tool using the same

The present invention relates to a rotary brush of a vacuum cleaner suction tool and a suction tool using the same.

A vacuum cleaner suction tool is known that has a rotating brush in order to improve the ability to collect dust from the surface to be cleaned (dust collection ability). For example, if the surface to be cleaned is a carpet surface consisting of a carpet, dust often enters the carpet pile, so the dust is sucked out of the pile with a rotating brush. Thereby, the cleaning performance of the suction tool can be improved.

By the way, as the surface to be cleaned, there are various types such as a carpeted surface as well as a flat floor surface or a tatami surface. Further, the surface to be cleaned itself may not be completely flat but may include irregularities. Therefore, conventionally, suction tools capable of dealing with various types of surfaces to be cleaned have been proposed.

For example, Patent Document 1 discloses a suction tool including a linear brush composed of curly bristles provided around a rotating body. In this suction tool, the vicinity of the tip of the bristle is formed in a substantially spherical shape, and a deformed cross-sectional yarn having irregularities in the cross section is used as the bristle body.

In the case of the suction tool, since the tip of the brush bristles has a substantially spherical shape, the fibrous dust on the carpet can be hooked on the substantially spherical portion and removed (scraped out) from the pile of the carpet. Therefore, the dust entangled with the pile can be efficiently cleaned. Moreover, since the main body of the bristle is a modified cross-section yarn, the area that comes into contact with the entangled dust when it comes into contact with the carpet pile increases. Therefore, the dust scraping performance by the rotating brush can be improved.

Japanese Patent No. 3624889

However, in the conventional rotating brush, there is a possibility that the brush hair falls down when the linear brush made of the irregular cross-section yarn comes into contact with the surface to be cleaned.

The rotating brush is configured in a state where the linear brush stands up around the rotating body. However, if the bristle constituting the linear brush has a high rigidity, the linear brush is in contact with the surface to be cleaned. The standing state is maintained. However, the bristle disclosed in Patent Document 1 has a substantially spherical shape at the tip, but the main body is a deformed cross-sectional yarn having irregularities in its cross section, so that the rigidity is higher than that of a normal cross-section yarn having substantially the same diameter. It will decline. As a result, depending on conditions such as the use environment of the vacuum cleaner and the cumulative use time, the linear brush of the irregular cross-section yarn may fall down.

The present invention has been made to solve such a problem, and in a rotating brush used for a vacuum cleaner suction tool, even when a deformed cross-section yarn is used, the linear brush effectively falls down. However, it aims at further improving dust collection performance.

In order to solve the above problems, a rotary brush of a vacuum cleaner suction tool according to the present invention includes a rotary shaft body rotatably provided in the vacuum cleaner suction tool, and an axis line around the rotary shaft body. A plurality of linear brushes provided along the direction, and at least one of the plurality of linear brushes as a bristle material, a standard cross-sectional yarn having a circular or elliptical cross-sectional shape, and a convex This is a mixed linear brush that is used by mixing with a modified cross-section yarn having a cross-sectional shape including at least one of a portion and a recess.

In the above configuration, the modified cross-section yarn has at least one cross-sectional shape selected from a group of Y shape, V shape, X shape, triangle shape, and rectangular shape. Good.

Moreover, in the said structure, the said linear brushes other than the said mixed linear brush may be the structure which is a single-hair linear brush which consists only of a standard cross-section thread | yarn.

Further, in the above-described configuration, one linear brush may be configured by arranging a plurality of bristle rows adjacent to each other in which a bristle material is implanted in a linear shape.

Further, in the above configuration, the mixed linear brush is formed by mixing a deformed bristle row composed only of a modified cross-section yarn, a standard bristle row composed of only a standard cross-section yarn, and a standard cross-section yarn and a modified cross-section yarn. And at least one of the mixed hair material rows.

Moreover, in the said structure, the said hair material row | line | column is comprised as what arranged the hair material strain | stump | stock which bundled the hair material in the bundle form in the shape of a line, The deformed hair which consists only of a deformed cross-section thread | yarn as the said hair material strain | stump | stock A configuration may be used in which at least one of a stock, a standard bristle stock consisting of only standard cross-section yarn, and a mixed hair stock obtained by mixing standard cross-section yarn and irregular cross-section yarn is used.

In the above configuration, the mixed hair material row may be configured by repeatedly arranging the irregular hair material stock and the standard hair material stock or the mixed hair material stock in a preset arrangement pattern.

Further, in the above-described configuration, the mixed linear brush includes a plurality of bristle materials such that the standard bristle stock or the mixed bristle stock is positioned on the rotational direction side of the rotary shaft body as viewed from the deformed bristle stock. The columns may be arranged adjacent to each other.

Moreover, in the said structure, the said standard cross-section thread | yarn contained in one said mixed linear brush may be the structure which is in the range of 15% or more and 60% or less by the cross-sectional area ratio of the said hair material.

The present invention also includes a vacuum cleaner suction tool including the rotating brush having the above-described configuration.

The above object, other objects, features, and advantages of the present invention will become apparent from the following detailed description of preferred embodiments with reference to the accompanying drawings.

As described above, in the present invention, in the rotary brush used for the vacuum cleaner suction tool, the effect of further improving the dust collection performance while effectively suppressing the hair fall of the linear brush can be achieved. Play.

It is a schematic perspective view which shows an example of a structure of the vacuum cleaner provided with the rotary brush and suction tool for vacuum cleaners concerning embodiment of this invention. It is a perspective view which shows an example of the specific structure of the suction tool shown in FIG. It is a bottom view which shows an example of a structure of the lower surface of the suction tool shown in FIG. It is sectional drawing of the horizontal direction which shows an example of the internal structure of the suction tool shown in FIG. It is a longitudinal cross-sectional view of the perpendicular direction which shows an example of the internal structure of the suction tool shown in FIG. 6A is a cross-sectional view illustrating an example of the configuration of the rotating brush included in the suction tool illustrated in FIGS. 1 to 5, and FIG. 6B illustrates an example of the configuration of the linear brush included in the rotating brush illustrated in FIG. 6A. It is a typical perspective view. FIG. 7A is a schematic cross-sectional view showing an example of the configuration of a modified cross-sectional yarn used as a bristle material for the linear brush shown in FIG. 6B, and FIG. 7B is a schematic view showing another example of the configuration of the modified cross-sectional yarn. FIG. 7C is a schematic cross-sectional view showing an example of a configuration of a standard cross-sectional yarn used as the bristle material. 8A and 8B are schematic plan views showing examples of arrangement of bristle rows and bristle stocks in the mixed linear brush shown in FIG. 6B, and FIG. 8C shows bristle rows and bristle materials in a single bristle linear brush. It is a typical top view showing an example of a stock. It is a schematic diagram explaining an example of the flocking of the hair material strain | stump | stock in the linear brush shown to FIG. 6B. 10A to 10D are schematic plan views showing specific examples of the arrangement of bristle rows or bristle stocks in the mixed linear brush shown in FIG. 6B. It is a graph which shows the result of having evaluated the polishability of the to-be-cleaned surface using the rotating brush shown to FIG. 6A.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. In the following description, the same or corresponding elements are denoted by the same reference symbols throughout the drawings, and redundant description thereof is omitted.

[Configuration example of vacuum cleaner]
First, an example of a vacuum cleaner provided with a rotating brush and a vacuum cleaner suction according to an embodiment of the present invention will be specifically described with reference to FIG.

As shown in FIG. 1, a vacuum cleaner suction tool (hereinafter simply referred to as a suction tool) according to the present embodiment is, for example, a canister-type vacuum cleaner 30 (hereinafter simply referred to as a vacuum cleaner 30). ). The vacuum cleaner 30 includes a vacuum cleaner body 31, a suction hose 32, a hand operating section 33, a suction extension pipe 34, a suction nozzle 35, and the suction tool 20 according to the present embodiment.

The vacuum cleaner body 31 includes an electric blower and a dust collection chamber (not shown) inside, and a pair of wheels 36 on both sides. In addition, a power cord 37 is provided in the rear part of the cleaner body 31 so as to be housed therein, and a main body connection pipe 38 for connecting the suction hose 32 is provided in the front part. One end of a suction hose 32 is detachably connected to the main body connection pipe 38, and a suction extension pipe 34 is connected to the other end of the suction hose 32.

The suction extension pipe 34 is configured to be extendable and contractible, and the other end of the suction hose 32 is detachably connected to one end thereof, and the suction tool 20 is detachably connected to the other end. In addition, the hand operation part 33 is provided in the upper surface of the other end of the suction hose 32, and the suction nozzle 35 is attached to the lower surface so that attachment or detachment is possible. The suction nozzle 35 can be attached to the other end of the suction hose 32 instead of the suction extension pipe 34.

By operating the electric blower in the cleaner main body 31, a suction force is generated from the main body connection pipe 38 toward the cleaner main body 31. Therefore, suction force is also generated in the suction hose 32 connected to the cleaner body 31, the suction extension pipe 34, and a suction port (not shown) of the suction tool 20 (not shown). The cleaner body 31 is movable on the surface to be cleaned by a pair of wheels 36.

When using the vacuum cleaner 30, first, the user pulls the power cord 37 from the cleaner body 31, inserts the power plug at the tip into the power outlet, operates the hand operating unit 33, and operates the cleaner body 31. Turn on the power. As a result, the electric blower operates and a suction force is generated at the suction port of the suction tool 20. Therefore, the user grasps the hand operating unit 33 and moves the cleaner main body 31 as necessary. By moving the suction tool 20 on the surface, dust on the surface to be cleaned can be sucked. The dust sucked from the suction tool 20 is collected in the dust collecting chamber in the cleaner main body 31 through the suction extension pipe 34, the suction hose 32, and the main body connection pipe 38.

It should be noted that the specific configuration of the vacuum cleaner 30 shown in FIG. 1, that is, the specific configuration of the vacuum cleaner body 31, the suction hose 32, the hand operation unit 33, the suction extension pipe 34, the suction nozzle 35, etc. It is not limited, Various structures well-known in the field | area of a vacuum cleaner can be used suitably.

[Configuration example of suction tool]
Next, an example of a typical configuration of the suction tool 20 will be specifically described with reference to FIGS. In the present embodiment, as shown in FIGS. 2 to 5, in the suction tool 20, the side to which the suction extension pipe 34 is connected is referred to as “rear”, and the opposite side is referred to as “front”.

As shown in FIG. 2, the suction tool 20 according to the present embodiment includes a suction tool main body 21, a suction tool connection pipe 22, and a joint portion 23. The suction tool main body 21 has an elongated flat plate shape, and a suction tool connection pipe 22 is connected to the rear side of the center in the longitudinal direction via a joint portion 23. The joint part 23 connects the suction tool connecting pipe 22 to the suction tool body 21 so as to be movable in the vertical and horizontal directions. The suction tool connection pipe 22 is configured to be connectable to the other end of the suction extension pipe 34 (or the suction hose 32).

As shown in FIG. 3, the suction tool main body 21 has a suction port 21a provided on the front side of the lower surface. The suction port 21a is a rectangular opening located along the longitudinal direction of the suction tool main body 21, and the rotating brush 10 is provided therein. Further, as shown in FIGS. 4 and 5, a suction air passage 20a is formed in the front-rear direction via a joint portion 23 between the suction tool main body 21 and the suction tool connection pipe 22, and this suction One end of the air passage 20a is a suction port 21a. The other end of the suction air passage 20 a is a hose connection port 22 a that is an opening at the rear end of the suction tool connection pipe 22, and the suction extension pipe 34 is connected to the suction tool connection pipe 22, thereby A suction force is generated in the suction port 21a through the air passage 20a.

Moreover, as shown in FIG. 3, the suction tool main body 21 has a substantially rectangular shape on the upper surface side but a shape in which the central rear portion protrudes on the lower surface side. As shown in FIG. 5, the joint portion 23 is located above the protruding portion. A pair of front wheels 24 and a pair of rear wheels 25 are provided on the lower surface of the suction tool main body 21. The front wheel 24 is located on the rear side of the suction port 21a, that is, on the rear side of both sides in the longitudinal direction of the suction tool main body 21, and the rear wheel 25 is located on the rear side of the protruding portion. The suction tool 20 can easily move on the surface to be cleaned by the front wheel 24 and the rear wheel 25.

The rotary brush 10 provided in the suction port 21 a is composed of a plurality of linear brushes 11 and a rotary shaft body 12. As shown in FIG. 4, the rotary shaft body 12 is disposed so as to be parallel to the longitudinal direction of the suction tool main body 21, and a brush drive mechanism 26 is provided at the drive end 13 that is one end. The drive motor 27 is connected. In the present embodiment, the brush drive mechanism 26 is a drive belt that is wound so that the rotation shaft of the brush drive motor 27 and the drive end 13 are both ends, and the rotation drive force of the brush drive motor 27 is applied to the rotation shaft. Transmitted to the body 12. The brush drive motor 27 is electrically connected to the brush drive circuit unit 28 by wiring. The support end 14, which is the other end of the rotating brush 10, is rotatably supported with respect to the bearing structure in the suction tool main body 21.

In the configuration shown in FIG. 4, the brush drive motor 27 is located behind one side (the left side in the drawing) in the suction tool main body 21 so that the axial direction is parallel to the rotary shaft body 12. . And the brush drive circuit part 28 is located in the side part (right side in the figure) of the other side via the suction air path 20a seeing from the brush drive motor 27. FIG. The wiring connecting the brush drive circuit unit 28 and the brush drive motor 27 is arranged so as to cross the upper surface of the suction air passage 20a.

Therefore, in the suction tool main body 21, the rotary brush 10 is arranged on the front side, and the brush drive motor 27, the wiring, and the brush drive circuit unit 28 are arranged side by side in a positional relationship so as to be substantially parallel to the rotary brush 10 on the rear side. Has been. Therefore, since one end (drive end 13) of the rotating brush 10 and the rotation shaft of the brush drive motor 27 are positioned side by side, the drive end 13 and the rotation shaft are moved by the brush drive mechanism 26 arranged at the front and rear. It will be connected.

As shown in FIGS. 3 and 4, the linear brush 11 constituting the rotary brush 10 is provided around the rotary shaft body 12 along the axial direction (longitudinal direction). If the linear brush 11 is provided so as to extend in the axial direction of the rotating shaft 12, in this embodiment, the linear brush 11 is bent or bent so that the central portion protrudes rearward from the end portion. is doing. As a result, the dust scraped from the surface to be cleaned by the rotation of the rotary brush 10 is collected in the central portion of the suction port 21a, and therefore, the dust is collected and efficiently sucked into the suction air passage 20a connected to the central portion. be able to. The specific configuration of the linear brush 11 will be described later.

An example of the dust collecting operation by the suction tool 20 having the above-described configuration will be described with reference to FIGS. When the operation of the electric vacuum cleaner 30 is started by the user operating the hand operation unit 33, the electric blower operates to generate a suction force from the cleaner body 31 to the suction port 21a. Along with this, the brush drive circuit unit 28 rotates the brush drive motor 27, so that the rotational drive force of the brush drive motor 27 is transmitted to the drive end 13 of the rotary brush 10 via the brush drive mechanism 26, thereby rotating. The rotation of the brush 10 is started.

Then, when the user grasps the hand operation unit 33 and moves the suction tool 20 as appropriate, dust on the floor surface is sucked from the suction port 21a. At this time, if the surface to be cleaned is a carpet surface, as shown by a block arrow R in FIG. 5, the contact portion of the rotary brush 10 with the surface to be cleaned rotates from the front to the back, and the linear brush 11 is dusted from the carpet. Scrap out. If the surface to be cleaned is a smooth surface such as a flat floor surface, the surface to be cleaned can be polished by the rotating brush 10.

As described above, since the central portion of the linear brush 11 protrudes toward the rear side of the end portion, the dust scraped off with the rotation of the rotating brush 10 is the central portion of the suction port 21a. To be collected. Since the suction air passage 20a is connected to the central portion, as shown by the block arrow S in FIG. 5, the collected dust is sucked into the suction air passage 20a. Dust is collected in a dust collection chamber (not shown) in the cleaner body 31 through the suction hose 32.

In the present embodiment, the rotary brush 10 is driven to rotate by the brush drive motor 27, but the present invention is not limited to this. The rotary shaft body 12 constituting the rotary brush 10 only needs to be rotatably provided in the suction tool 20. For example, the rotary shaft body 12 is driven by using an air turbine provided in a part of the suction air passage 20 a as a drive source. The structure which rotationally drives may be sufficient and the structure which the rotating shaft body 12 rotates may be sufficient when the linear brush 11 receives the wind originating in the suction force which arises in the suction inlet 21a. Moreover, the linear brush 11 does not necessarily have to have a shape in which the central portion protrudes to the rear side, and may be parallel to the axial direction of the rotary shaft 12 or may be inclined in the axial direction. Alternatively, it may be spiral.

[Configuration example of rotating brush]
Next, an example of a typical configuration of the rotating brush 10 will be specifically described with reference to FIGS. 6A, 6B, 7A to 7C, and FIGS. 8A to 8C.

As shown in FIG. 6A, the rotary brush 10 according to the present embodiment has six (six) linear brushes 11, and three of these linear brushes 11 are mixed. It is the linear brush 11A, and the remaining three are single hair linear brushes 11B. The mixed linear brush 11 A and the single bristle linear brush 11 B are alternately provided on the outer periphery of the rotary shaft body 12.

In the present embodiment, the rotary shaft body 12 includes a shaft portion 12a serving as a rotation shaft of the rotary brush 10 and a shaft body main body 12b for fixing and arranging the linear brush 11 around the shaft portion 12a. Yes. The linear brush 11 is flocked to the flocked base material 112. In this embodiment, the linear brush 11 is fixed to the shaft main body 12b so that the linear brush 11 is a rotating shaft body. 12 is fixedly arranged.

The linear brush 11 according to the present embodiment is composed of a plurality of bristle rows 111 as shown in FIG. 6B. In FIG. 6B, for example, one linear brush 11 is configured by arranging three bristle rows 111 adjacent to each other. One (one) bristle material row 111 is configured as a linear arrangement of bristle stocks 113 in which the bristle material is bundled.

In the present embodiment, in the mixed linear brush 11A among the linear brushes 11, the standard cross-section yarn and the irregular cross-section yarn are mixed and used as the bristle material. The rotating brush 10 according to the present embodiment only needs to include at least one mixed linear brush 11A, and may include a plurality of mixed linear brushes 11A depending on the use of the rotating brush 10 and the suction tool 20. . The standard cross-sectional yarn is a yarn material having a circular or elliptical cross-sectional shape, and is generally used as a hair material of the rotating brush 10. On the other hand, the irregular cross-section yarn is a yarn material including at least one of a convex portion and a concave portion in its cross-sectional shape.

Specifically, as shown in FIG. 7A, the modified cross-sectional yarn 110A has a Y-shaped cross-sectional shape, the modified cross-sectional yarn 110B having a substantially V-shaped recess Pc in the cross-sectional shape, or the cross-sectional shape is X Examples thereof include a letter-shaped modified cross-sectional yarn 110C. These deformed cross-sectional yarns 110A to 110C include at least the concave portion Pc in the cross-sectional shape, and thus can be said to have a cross-sectional shape including a negative curvature. The modified cross-section thread 110B only includes a substantially V-shaped recess Pc in the cross-sectional shape, but the deformed cross-section thread 110A includes three recesses Pc in the cross-section, and therefore, there are three recesses between the recesses Pc. Pc is formed. Further, the irregular cross-section yarn 110C includes four concave portions Pc in the cross-sectional shape, and therefore, four convex portions Ps are formed between the respective concave portions Pc.

Further, as another irregular cross-section yarn, as shown in FIG. 7B, there is an irregular cross-section yarn 110D having a rectangular cross-sectional shape or an irregular cross-section yarn 110E having a substantially triangular cross-sectional shape. These

irregular cross-section yarns

110D and 110E include only the convex portion Ps in the cross-sectional shape. The irregular cross-section yarn 110D has four convex portions Ps, but no concave portion Pc is formed between the convex portions Ps. The modified cross-section yarn 110E has three convex portions Ps, but no concave portion Pc is formed between the convex portions Ps.

These irregular cross-section yarns have more contact points with the surface to be cleaned than the standard cross-section yarn 100A or elliptical standard cross-section yarn 100B having a circular cross section as shown in FIG. In particular, if there is a recess Pc as shown in FIG. 7A, the dust holding property of the linear brush 11 can be further improved.

Here, the rotating brush 10 rotates so that the portion in contact with the surface to be cleaned moves to the rear side of the suction tool 20, that is, the side where the suction air passage 20a is located (see FIG. 5). Therefore, if the rotary brush 10 includes the linear brush 11 having a modified cross-section yarn, the dust existing on the surface to be cleaned can be entangled with the modified cross-section yarn and transferred to the rear suction air passage 20a. it can. Therefore, when viewed as a bristle material, the irregular cross-section yarn not only simply improves dust removability, but also entangles dust on the surface to be cleaned, and thus has excellent polishing and wiping properties.

However, the irregular cross-section yarn is relatively lacking in rigidity because the cross-sectional area is smaller than that of the

standard cross-section yarns

100A and 100B. Therefore, even when the linear brush 11 made of a modified cross-section yarn is raised against the rotary shaft 12 (see FIG. 6A), the linear brush 11 is gradually inclined due to strong contact or cumulative contact with the surface to be cleaned. It is easy to fall into (hair fall state). If the deformed cross-section yarn falls down, the tip of the deformed cross-section yarn will not be in contact with the surface to be cleaned, so it will not be possible to secure the dust retention mentioned above, and therefore achieve sufficient polishing and wiping properties. It becomes impossible.

In order to prevent the linear brush 11 from falling down, it is assumed that the bristle material (deformed cross-section yarn) is shortened. However, due to the structure of the rotary brush 10 and the brush drive mechanism 26, shortening the bristle material is substantial. It is difficult to. For example, if the rotating shaft body 12 is thickened instead of shortening the bristle material, the outer periphery of the rotating shaft body 12 may come into contact with the surface to be cleaned. In addition, the surface to be cleaned is not necessarily a flat surface and often has a certain degree of unevenness. Therefore, if the hair material is shortened, the unevenness of the surface to be cleaned cannot be sufficiently accommodated. Therefore, it is necessary to use a hair material having a certain length depending on the specific configuration of the rotating brush 10 and the suction tool 20.

Therefore, in this embodiment, as shown in FIG. 6A, at least one of the plurality of linear brushes 11 (three in FIG. 6A) provided around the rotary shaft body 12 is a standard cross-sectional yarn as a hair material. In addition, a mixed linear brush 11 A using a mixture of irregular cross-section yarns is obtained. In this mixed linear brush 11A, a modified cross-section yarn having relatively low rigidity can be supported by a standard cross-section yarn having high rigidity. In particular, since the irregular cross-section yarn and the standard cross-section yarn are mixed, the periphery of the irregular cross-section yarn can be supported or reinforced with the standard cross-section yarn. Therefore, even if the irregular cross-section yarn is used as the bristle material, it is possible to effectively suppress the falling of the linear brush 11.

Furthermore, if the rotary brush 10 includes the mixed linear brush 11A, even if a thread or string is wound around the rotary brush 10, it can be easily removed. Since the rotating brush 10 contacts the surface to be cleaned while rotating, if, for example, a thread is present as dust on the surface to be cleaned, the thread is wound along with the rotation. In this state, the thread wraps around the rotary shaft 12 after being sunk between the hair materials of the linear brush 11. If the bristle material is a standard cross-section yarn having high rigidity, the yarn is fastened by the bristle material and cannot be easily removed, so that the winding state of the yarn is fixed. Therefore, it is usually not easy to remove the thread from the rotating brush 10.

However, if the rotating brush 10 is provided with the mixed linear brush 11A, the mixed linear brush 11A includes a modified cross-section yarn having low rigidity, so that even if the yarn bites between the hair materials. The degree of tightening with bristle is small. Therefore, it becomes easy to remove the yarn from between the bristle materials, and the yarn wound around the rotary brush 10 can be easily removed.

In the present embodiment, as a preferred configuration of the linear brush 11, as shown in FIG. 6B, a configuration in which a plurality of bristle rows 111 are arranged adjacent to each other is given, and thus a specific configuration of the mixed linear brush 11 A. As shown in FIG. 8A, a configuration in which a standard bristle row 111B made up of only standard cross-section yarns and a deformed bristle row 111C made up only of cross-section yarns are arranged adjacently, or as shown in FIG. 8B A configuration in which the irregular hair material row 111C and the mixed hair material row 111A formed by mixing the standard cross-section yarn and the irregular cross-section yarn are arranged adjacent to each other can be given.

Note that one (one) bristle row 111 is configured by flocking the bristle base material 112 so that a plurality of bristle stocks 113 are arranged in a row, and therefore, in FIGS. The hair material stock 113 of the stock is schematically shown by a circular figure or a Y-shaped figure, and the arrangement of one row of the hair stock 113 is schematically shown as one (one) hair material row 111A to 111C. Is shown. The circular figure shows the standard hair material stock 113B composed only of the standard cross-section thread, and the Y-shaped figure shows the deformed hair stock 113C composed only of the modified cross-section thread. An adjacent Y-shaped graphic (a set of figures surrounded by a broken line in FIG. 8B) shows a mixed hair material stock 113A in which standard cross-section yarns and irregular cross-section yarns are mixed.

Here, in the rotating brush 10 according to the present embodiment, as shown in FIG. 6A, a single-hair linear brush made up of only the standard cross-section yarns other than the mixed linear brush 11 A among the plurality of linear brushes 11. 11B is preferable. This means that if the surface to be cleaned is a flat surface (such as a plaster surface), the surface to be cleaned is excellently polished or wiped, and if the surface to be cleaned is a carpet surface, dust can be scraped off. It is for making it favorable.

When the linear brush 11 consisting only of the modified cross-section yarn and the linear brush 11 consisting only of the standard cross-section yarn (single-hair linear brush 11B) are compared, the former contributes to the polishing or wiping property of the surface to be cleaned. It hardly contributes to the dust scraping property on the carpet surface. On the carpet surface, it is necessary to scrape the dust that has entered the carpet pile. Therefore, the latter linear brush 11 using a bristle material with high rigidity (standard cross-section thread) must be used for cleaning the carpet surface. is there.

Therefore, in order to ensure good cleaning performance even on the carpet surface, it is more preferable that the rotating brush 10 includes not only the mixed linear brush 11A but also a single-wire linear brush 11B made of standard cross-sectional yarns. If an example of the mixed linear brush 11A is composed of three (three) bristle rows 111A to 111C as shown in FIGS. 8A and 8B, an example of the single linear brush 11B is also shown in FIG. 8C. Thus, the structure which consists of three standard bristle material row | line | columns 111B can be mentioned.

Here, as shown in FIG. 6A, it is preferable that the length of the bristle material of the single linear brush 11B is shorter than the length of the bristle material of the mixed linear brush 11A. The mixed linear brush 11A is used for polishing or wiping the surface to be cleaned, whereas the single-hair linear brush 11B is used for scraping dust on the carpet surface. Therefore, it is preferable that the standard cross-section yarn having high rigidity is short so that it does not come into strong contact with the surface to be cleaned (such as the floor surface of the board) that is to be polished or wiped off. On the contrary, it is preferable that the modified cross-section yarn having low rigidity is sufficiently long so that it can sufficiently contact the surface to be cleaned and exhibit sufficient polishing or wiping performance.

In addition, the specific structure of the irregular cross-section thread | yarn 110 used as a hair material is not specifically limited, The cross-sectional shape is Y shape, V shape, X shape, a triangle as shown to FIG. 7A or FIG. 7B. It is sufficient that at least one shape is selected from the shape or the rectangular shape. Therefore, two or more kinds of irregular cross-section yarns 110 may be included in one (one) mixed hair material row 111A or irregular hair material row 111C. Therefore, even in one (one) mixed linear brush 11A, two or more kinds of irregular cross-section yarns 110 may be used as the bristle material. Needless to say, the cross-sectional shape of the irregular cross-section yarn 110 may be other than the above five types.

In the present embodiment, the number of mixed linear brushes 11A and single linear brushes 11B among the plurality of linear brushes 11 included in the rotating brush 10 is the same, but the present invention is not limited to this, and the suction tool Depending on the application of 20, the number of mixed linear brushes 11A may be increased, or conversely, the number of single hair linear brushes 11B may be increased. In addition, the length of the bristle of the single linear brush 11B relative to the length of the bristle of the mixed linear brush 11A (or the ratio of the length of each bristle) is not particularly limited. Depending on the use of the suction tool 20, it can be set as appropriate.

[Configuration example of hair material stock]
Next, hair material stocks 113A to 113C used for mixed linear brush 11A in the present embodiment will be specifically described with reference to FIG. 9 in addition to FIGS. 7A to 7C.

As shown in FIG. 9, the hair material stocks 113A to 113C are formed by bundling a plurality of standard cross-section yarns 100 or irregular cross-section yarns 110, and the bent portions are fixed to the flocked base material 112. Thus, the flocked base material 112 is flocked. In FIG. 9, for convenience of explanation, one standard cross-section thread 100 or deformed cross-section thread 110 is shown as one stock, but in practice, a plurality of one is folded into one stock.

As shown in FIG. 9, the mixed hair material stock 113 A has a configuration in which a standard hair material stock 113 B is planted adjacent to the irregular hair stock 113 C. As a result, the irregular cross-section yarn 110 having low rigidity is supported or reinforced by the standard cross-section yarn 100 having high rigidity, so that the hair fall is effectively suppressed. Here, as the modified cross-section yarn 110, one having the same outer diameter as the standard cross-section yarn 100 may be used, or one having a smaller (thin) outer diameter than the standard cross-section yarn 100 as shown in FIG. May be. By using the thinner irregular cross-section thread 110, the number of contacts of the irregular cross-section thread 110 with respect to the surface to be cleaned can be increased, so that the polishing or wiping performance of the surface to be cleaned by the mixed linear brush 11A can be further improved. it can.

For example, when one mixed hair stock 113A is constituted by one standard hair stock 113B and one irregular hair stock 113C, 18 standard cross-section yarns are used as the standard hair stock 113B. 100 (that is, the number of hair materials used in one strain is 9), and the deformed hair material strain 113C is composed of 160 deformed cross-section yarns 110 (and therefore hair used in one strain). The number of materials can be 80).

As the mixed hair material stock 113A, as shown in FIG. 9, the standard hair stock 113B and the irregular hair stock 113C are not adjacent to each other, but the modified cross-section yarn 110 and the standard cross-section yarn 100 are mixed. Then, they may be bundled and bent. Therefore, as the mixed hair material stock 113A, it is sufficient to use a hair material that includes the deformed cross-sectional yarn 110 and the standard cross-sectional yarn 100 in a set of hair materials that can be regarded as substantially one stock. There is no particular limitation.

Further, the positional relationship between the standard hair material stock 113B and the modified hair material stock 113C constituting the mixed hair material stock 113A is not particularly limited, but as one preferred configuration example, as shown in FIG. Examples include flocking the stock 113C and flocking the standard hair material stock 113B inside. Thus, the irregular hair material strain 113C can be reinforced with the standard hair material strain 113B, so that the hair fall of the irregular hair material strain 113C can be prevented and the dust removal performance can be improved.

Specific configurations of the standard cross-section yarn and the irregular cross-section yarn used for the hair stocks 113A to 113C are not particularly limited. In the field of the rotating brush 10, as the bristle material (standard cross-section thread), a known resin (for example, nylon resin) extruded and cut into a predetermined length can be suitably used. Therefore, both the modified cross-section yarns 110A to 110C shown in FIG. 7A and the modified

cross-section yarns

110D and 110E shown in FIG. 7B can be manufactured by extruding a resin from a die having the shape shown in FIGS. 7A and 7B. . Of course, as long as the modified cross-section yarn 110 having a desired cross-sectional shape can be manufactured, other known manufacturing methods can be used.

Specific diameters (outer diameters) of the standard cross-section yarn and the modified cross-section yarn used as the hair material are not particularly limited, and a known range in the field of the rotating brush 10 can be suitably used. For example, in the present embodiment, the standard cross-sectional yarn 100A shown in FIG. 7C has a diameter of 7.39 × 10 ⁻¹² m ² , and for example, the deformed cross-sectional yarn 110A shown in FIG. Although an outer diameter of 36 × 10 ⁻¹² m ² is used, it goes without saying that the present invention is not limited to this example.

In addition, as in the above example, by using a modified cross-sectional thread thinner than the standard cross-sectional thread, it is possible to improve the polishing or wiping property of the surface to be cleaned, but the thickness of the modified cross-sectional thread is particularly It is not limited. When the diameter of the standard cross-section yarn is 1, the outer diameter of the irregular cross-section yarn can be preferably set within a range of, for example, 1/10 to 1/1, but of course is not limited to this range. In the above example, the irregular cross-sectional yarn 110A has a thickness of 1 / 5.4 of the standard cross-sectional yarn 100A.

The combination of the hair material stock 113 used for the mixed linear brush 11A is not particularly limited. The combination of the modified hair material stock 113C and the standard hair material stock 113B, the modified hair material stock 113C and the mixed hair material stock 113A. Examples thereof include a combination, a modified hair material stock 113C, a standard hair material stock 113B, and a mixed hair material stock 113A, and a standard hair material stock 113B and a mixed hair material stock 113A. That is, the combination of the bristle stock 113 is not particularly limited as long as the mixed linear brush 11 A configured using the bristle stock 113 includes a modified cross-section yarn.

The standard hair material stock 113B or the mixed hair material stock 113A is used to support or reinforce the deformed hair stock 113C to suppress or avoid hair fall. However, the cleaning performance to be ensured varies depending on the use of the rotating brush 10 and the suction tool 20, and therefore, the degree of polishing or wiping of the surface to be cleaned by including a modified cross-section yarn varies. Therefore, it is sufficient that these bristle materials are mixed so that the standard cross-sectional yarn can support or reinforce the irregular cross-section yarn when viewed as the mixed linear brush 11A as a whole, and the irregular linear material is mixed with the mixed linear brush 11A. Stock 113C need not always be included.

In addition, about the ratio of the irregular cross-section thread | yarn in all the hair materials used for the mixed linear brush 11A, and a standard cross-section thread | yarn, it sets suitably according to the specific structure of the rotary brush 10 and the suction tool 20, an application, etc. Can do. This point will be described in detail in the following [Configuration example of mixed linear brush].

[Configuration example of mixed linear brush]
Next, a specific configuration example of the mixed linear brush 11A will be specifically described with reference to FIGS. 10 and 11 in addition to FIGS. 8A and 8B.

As schematically shown in FIG. 8A, the mixed linear brush 11A may be composed of a standard bristle material row 111B and an irregular hair material row 111C, or may be composed of a mixed hair material row 111A and an irregular hair material row 111C. Although not shown, the bristle rows 111A to 111C may be configured to include all of the bristle rows 111A to 111C. However, from the viewpoint of effectively suppressing or preventing the hair fall of the irregular cross-section yarn, the bristle rows 111A to 111C The preferable arrangement of can be illustrated.

For example, as shown in FIG. 8A, FIG. 8B, or FIG. 10A, the mixed linear brush 11A has an outer bristle row 111 composed of a standard bristle row 111B or a mixed bristle row 111A, and an inner bristle material. It is preferable that the row | line | column 111 is comprised by the irregular-shaped hair material row | line | column 111C. By disposing these hair material rows 111 so that the outer periphery of the irregular hair material row 111C is surrounded by the standard hair material row 111B or the mixed hair material row 111A, the hair fall of the deformed hair material row 111C is effectively suppressed or avoided. be able to.

The example shown in FIGS. 8A and 8B is an example in which there are three bristle rows 111 (three), and the example shown in FIG. 10A is an example in which four bristle rows 111 (four). Depending on the application of the suction tool 20, the number of the inner irregular hair material rows 111C can be increased or decreased. In FIGS. 10A to 10D, the circular figure indicates not only the standard hair material stock 113B but also the mixed hair stock 113A. Further, the outer side or the inner side here indicates the outer side or the inner side in the longitudinal direction of the mixed linear brush 11A, as is apparent from the schematic configuration shown in FIG. 8A, FIG. 8B or FIG. 10A. It does not indicate the outer side or the inner side at the end of the brush 11A.

Alternatively, as shown in FIG. 10B, the mixed linear brush 11A is configured such that the outer bristle row 111 is composed of a deformed bristle row 111C, and the inner bristle row 111 is the standard bristle row 111B or the mixed bristle material. The column 111A may be configured. This configuration is opposite to the configuration shown in FIG. 8A, FIG. 8B or FIG. 10A, but the outer peripheral hair row 111C is supported or reinforced by the inner standard hair row 111B or the mixed hair row 111A. As a result, in the mixed linear brush 11A, the inner bristle

rows

111A and 111B function like a skeleton.

Alternatively, as shown in FIG. 10C, the mixed hair material row 111A constituting the mixed linear brush 11A is not composed of the mixed hair material stock 113A, but the deformed hair material stock 113C and the standard hair material stock 113B or The mixed hair material stock 113 A may be configured by repeatedly arranging in a preset arrangement pattern. In this configuration, since the positions of the bristle stocks 113A to 113C included in the mixed linear brush 11A can be dispersed, the overall rigidity of the mixed linear brush 11A can be improved.

Here, in FIG. 10C, one array pattern is constituted by two abnormal hair stocks 113C and one standard hair stock 113B or mixed hair stock 113A, but the specific order of the array patterns is as follows. Is not particularly limited, and a suitable arrangement pattern can be set according to the use of the suction tool 20 or the like. However, as an example of a preferable arrangement pattern, in the mixed hair material rows 111A adjacent to each other, the standard hair material stocks 113B included in each mixed hair material row 111A or the mixed hair material stocks 113A are not adjacent to each other. Examples include a configuration in which a pattern is set. In other words, in the mixed hair material row 111A adjacent to each other, it is preferable that the arrangement pattern is set so that the types of the hair material stocks 113 are staggered. One of the functions of the standard hair material stock 113B or the mixed hair material stock 113A is to support or reinforce the deformed hair stock 113C, so that these

hair stocks

113A, 113B are dispersedly arranged so as not to be adjacent to each other. The rigidity of the entire mixed linear brush 11A can be improved.

Further, as shown in FIG. 10D, in the mixed linear brush 11A, the standard hair material strain 113B or the mixed hair material on the rotation direction (block arrow R in the drawing) side of the rotary shaft body 12 as viewed from the deformed hair material strain 113C. A plurality of bristle material rows 111 may be arranged adjacent to each other so that the stock 113A is located. In the example shown in FIG. 10D, the standard hair material row 111B or the mixed hair material row 111A is arranged on the upstream side in the rotation direction, and the deformed hair material row 111C is arranged on the downstream side. However, the present invention is not limited to this, and in particular, a mixed hair material formed by repeatedly arranging an irregular hair material stock 113C, a standard hair material stock 113B, or a mixed hair material stock 113A in a preset arrangement pattern as shown in FIG. 10C. It is preferable to employ such an arrangement in the column 111A. Thereby, it becomes possible to suppress or avoid the hair fall of the irregular hair material stock 113C more effectively.

Furthermore, in the mixed linear brush 11A, the cleaning performance of the rotating brush 10 (and the suction tool 20) is further improved by setting the ratio of the standard cross-sectional yarns included in all the bristle materials within a preferable range. Can do. Specifically, the standard cross-sectional yarn contained in one mixed linear brush 11A is preferably in the range of 15% to 60% in terms of the cross-sectional area ratio of the bristle material, and is 20% to 55%. More preferably, it is in the range of 22% or more and 52% or less.

In other words, if the ratio of the standard cross-section yarn and the modified cross-section yarn included in one mixed linear brush 11A is expressed by the cross-sectional area ratio, the standard cross-section yarn / the irregular cross-section yarn is within the range of 15/85 to 60/40. It is preferably within a range of 20/80 to 55/45, and more preferably within a range of 22/78 to 52/48. The preferred ratio of the standard cross-section thread in the whole hair material varies depending on the specific configuration of the rotating brush 10 or the surface to be cleaned (use) assumed in the suction tool 20, but is typically within the above range. If it enters, it is possible to implement | achieve favorable cleaning performance. In addition, the preferable range of the said ratio is demonstrated more concretely in the Example mentioned later.

Here, a preferable ratio can be set for the number of standard cross-section yarns in all the hair materials. However, as described above, the outer diameter of the modified cross-section thread relative to the diameter of the standard cross-section thread can be set as appropriate, so that the ratio of the preferred number is also suitable depending on the combination of the thickness of the standard cross-section thread and the modified cross-section thread. It will be slightly different. In the present embodiment, one preferable ratio range is that the number of standard cross-sectional yarns in all hair materials is in the range of 3% to 20%. This range is based on the thicknesses of the standard cross-section yarn and the irregular cross-section yarn described in the above [Configuration example of hair material stock].

In the present embodiment, the mixed linear brush 11A has a configuration in which a plurality of bristle rows 111 are arranged adjacent to each other, and the bristle row 111 has a configuration in which a plurality of bristle stocks 113 are arranged in a row. However, the configuration of the mixed linear brush 11A and the bristle row 111 is not limited to this. For example, a single mixed linear brush 11A may be configured by planting a standard cross-section yarn and a modified cross-section yarn so that neither the bristle stock 113 nor the bristle row 111 is constructed, or a single mixed linear Even if the brush 11 A is composed of a plurality of bristle rows 111, each bristle row 111 has a configuration in which standard cross-section yarns and irregular cross-section yarns are bundled in a row so as not to constitute the bristle stock 113. Also good. That is, the mixed linear brush 11A is a linear brush member provided along the axial direction around the rotating shaft 12, and has a configuration in which standard cross-section yarns and irregular cross-section yarns are mixed and used as bristle material. What is necessary is just to have the hair material row | line | column 111 what flocked the hair material linearly.

The present invention will be described more specifically based on examples and FIG. 11, but the present invention is not limited to this. Those skilled in the art can make various changes, modifications, and alterations without departing from the scope of the present invention.

[Rotating brush configuration]
In this example, a rotating brush 10 (see FIG. 6A) including six (six) linear brushes 11, which is a representative rotating brush 10, was used. As the mixed linear brush 11 A included in the six linear brushes 11, one in which two mixed hair material rows 111 A are arranged adjacent to each other was used.

[Composition of hair material and hair material stock]
As the modified cross-section yarn included in the mixed bristle row 111A, one having a Y-shaped cross-section (Y-shaped cross-section yarn, see FIG. 7A) was used, and as the standard cross-sectional yarn, one having a circular cross-sectional shape was used. As the Y-shaped cross-sectional yarn, an extrusion-molded yarn made of nylon resin having an outer diameter of 1.36 × 10 ⁻¹² m ² is used, and as a standard cross-sectional yarn, the diameter is 7.39 × 10 ⁻¹² m ² . Nylon resin extrusion thread was used.

Further, the irregular cross-section yarn was used alone as the irregular hair stock 113C, and was used as the mixed hair stock 113A together with the standard cross-section yarn (see FIG. 8B and FIG. 9). As the deformed hair material strain 113C, one strain having 160 Y-shaped cross-section yarns bundled and bent was used. Further, as the mixed hair material stock 113A, one obtained by flocking 18 standard hair material stocks 113B per stock configured by bundling nine standard cross-section yarns and bending them, and the mixed hair material stock 113A is used. It was.

[Composition of hair row]
As the mixed hair material row 111A, the mixed hair material row 113A and the mixed hair material stock 113A were planted in a single row in a predetermined arrangement pattern to constitute one mixed hair material row 111A. The arrangement pattern at this time was set such that the mixed hair material rows 113A included in each of the mixed hair material rows 111A were not adjacent to each other in the mixed hair material rows 111A (see FIG. 10C).

[Evaluation of polishability of the surface to be cleaned]
A flat floor made of wood (board floor) was prepared as a surface to be cleaned, and flour was sprayed as artificial fine dust. A vacuum cleaner (manufactured by Panasonic, product number: MC-PA210GX) is attached with a suction tool 20 equipped with a rotating brush 10, and the surface to be cleaned is reciprocated once. confirmed. "◎" if most of the dust is removed and the surface to be cleaned is well polished, "○" if the dust is sufficiently removed and the surface to be cleaned is polished appropriately, most of the dust is removed If the surface to be cleaned was confirmed to be polished, “△” was evaluated. If the dust was not sufficiently removed and the surface to be cleaned could not be confirmed, “×” was evaluated.

Example 1
The mixed linear brush 11A contributes to the polishing or wiping performance of the surface to be cleaned among the cleaning performance of the rotating brush 10, but when the surface to be cleaned is a carpet surface, the dust is included in the cleaning performance. Therefore, it is desirable that the rotary brush 10 is provided with the single-hair linear brush 11B. If the surface to be cleaned assumed for the suction tool 20 is only a smooth surface such as a flat floor surface, the rotary brush 10 may not include the single-hair linear brush 11B, but the suction tool 20 is assumed. If the surface to be cleaned is both a smooth surface and a carpet surface, it is preferable to include a single-hair linear brush 11B. Further, since the number (the number of strips) of the linear brushes 11 included in the rotating brush 10 may be plural, theoretically, a range from about 2 to 3 to 10 or more is assumed.

Therefore, in this embodiment, assuming that the surface to be cleaned is both a smooth surface and a carpet surface, a rotating brush 10 is prepared in which all of the six linear brushes 11 are mixed linear brushes 11A, Using the suction tool 20 provided with the rotating brush 10, the ratio of the standard cross-sectional yarn contained in the mixed linear brush 11A was changed to evaluate the polishability of the surface to be cleaned. The result is shown in FIG.

(Example 2)
In this example, assuming that the surface to be cleaned is substantially only a smooth surface, a rotating brush 10 was prepared in which only three of the six linear brushes 11 were mixed linear brushes 11A. As shown in FIG. 6A, the rotating brush 10 was obtained by alternately arranging mixed linear brushes 11 A and single bristle linear brushes 11 B. Using the suction tool 20 provided with the rotating brush 10, the polishability of the surface to be cleaned was evaluated by changing the ratio of the standard cross-sectional yarn included in the mixed linear brush 11A. The result is shown in FIG.

[result]
In the graph shown in FIG. 11, the result of Example 1 is indicated by a broken line, and the result of Example 2 is indicated by a solid line. The vertical axis of the graph indicates the polishability, and the horizontal axis indicates the ratio of the Y-shaped cross-section yarn planting as indicated at the bottom of the graph, and the standard as indicated at the top of the graph. It also shows the flocking ratio of the cross-sectional yarn.

As is apparent from the results of this graph, at least the polishability of the surface to be cleaned is “△” within the range evaluated in Examples 1 and 2, that is, when the Y-shaped cross-sectional yarn is in the range of 40 to 85%. Is evaluated. Therefore, in the present invention, if the standard cross-sectional yarn is included in the range of 15 to 60% in the entire bristle material of the mixed linear brush 11A, the irregular cross-sectional yarn can be sufficiently supported. It can be seen that

Further, in the result of Example 1, the peak in the polishability is observed when the ratio of the Y-shaped cross-sectional yarn is in the range of 70 to 75%, and the polishability is “◎” in the range of at least about 60 to about 78%. Can be evaluated. On the other hand, in the results of Example 2, a peak in the polishability was observed when the ratio of the Y-shaped cross-sectional yarn was within the range of 55 to 60%, and the polishability was “◎” within the range of at least about 47 to about 68%. Can be evaluated. Further, it can be seen that the range in which the polishability can be evaluated as “◯” in at least one of Examples 1 and 2 is in the range of 45 to 80% for the Y-shaped cross-sectional yarn.

Therefore, it is more preferable that the standard cross-sectional yarn contained in the entire bristle material of the mixed linear brush 11A is in the range of 20 to 55% because the polishability is “◯” in at least one of the embodiments. If it is in the range of ˜52%, it can be seen that at least one of the examples is more preferable because the polishability can be evaluated by “◎”.

Further, from the result shown in FIG. 11, it can be seen that the preferable range varies depending on the assumed type of surface to be cleaned and the number of mixed linear brushes 11 A included in the rotating brush 10. Therefore, the preferable range of the ratio of the standard cross-section yarn does not need to be set so as to be gradually reduced to the above-described three ranges, and can be set by combining the upper limit or the lower limit depending on the conditions.

For example, when the surface to be cleaned is limited to applications where both a smooth surface and a carpet surface are assumed, the upper limit of the ratio of the standard cross section yarn is about 43% (the ratio of the Y-shaped cross section yarn is about 57%), and the lower limit is If it is set to about 22% (the ratio of the Y-shaped cross section yarn is about 78%), it is possible to specify a range where the polishability can be evaluated with “「 ”. Also, when the application is limited to a smooth surface as the surface to be cleaned, the upper limit of the ratio of the standard cross-section thread is about 53% (the ratio of the Y-shaped section thread is about 47%), and the lower limit is about 33% ( If the ratio of the Y-shaped cross section yarn is set to about 67%), it is possible to specify a range in which the polishability can be evaluated with “◎”.

Alternatively, according to various conditions, the upper limit of the ratio of the standard cross section yarn may be set to 60%, the lower limit may be set to about 32%, the upper limit may be set to 55%, and the lower limit may be set to 15%. The upper limit may be set to about 52%, and the lower limit may be set to 15%. In this example, it can be said that it is a preferable range as the ratio of the standard cross-sectional yarn, as long as at least the polishability can be evaluated by “Δ” or more.

The results shown in FIG. 11 experimentally prove the preferable range of the ratio of the standard cross-section thread, even if the ratio of the standard cross-section thread exceeds 60% or less than 15%, It goes without saying that the effect of the present invention is not obtained. Depending on the specific configuration of the rotary brush 10 or the suction tool 20, it is possible to adjust the ratio of the standard cross-sectional yarn included in the mixed linear brush 11A to be increased or decreased. If the plurality of linear brushes 11 include one (one or more) mixed linear brushes 11A, an appropriate effect can be obtained.

Further, the present invention is not limited to the description of the above-described embodiment, and various modifications can be made within the scope shown in the scope of claims, and different embodiments, examples, multiple modifications, and the like can be made. Embodiments obtained by appropriately combining the technical means disclosed in the above are also included in the technical scope of the present invention.

Furthermore, from the above description, many modifications and other embodiments of the present invention are apparent to persons skilled in the art. Accordingly, the foregoing description should be construed as illustrative only and is provided for the purpose of teaching those skilled in the art the best mode of carrying out the invention. The details of the structure and / or function may be substantially changed without departing from the spirit of the invention.

The present invention can be widely and suitably used in the field of vacuum cleaner suction tools including rotating brushes and vacuum cleaners including the suction tools.

DESCRIPTION OF SYMBOLS 10 Rotating brush 11 Linear brush 11A Mixed linear brush 11B Single hair linear brush 12 Rotating shaft body 20 Suction tool 30

Vacuum cleaner

100, 100A, 100B Standard cross-section thread (hair material)
110, 110A-110E irregular cross-section yarn (hair material)
111 Hair material row 111A Mixed hair material row 111B Standard hair material row 111C Modified hair material row 113 Hair material stock 113A Mixed hair material stock 113B Standard hair material stock 113C Modified hair material stock Ps Convex part Pc Concave part

Claims

A rotating shaft body rotatably provided in the vacuum cleaner suction tool;
A plurality of linear brushes provided along the axial direction around the rotating shaft body, and
At least one of the plurality of linear brushes includes, as a hair material, a standard cross-sectional yarn having a circular or elliptical cross-sectional shape and a modified cross-sectional yarn having a cross-sectional shape including at least one of a convex portion and a concave portion. A rotating brush characterized in that it is a mixed linear brush used in a mixed manner.
The deformed cross-section yarn has at least one cross-sectional shape selected from the group of Y-shape, V-shape, X-shape, triangle shape, and rectangular shape, according to claim 1. Rotating brush as described.
The rotating brush according to claim 1, wherein the linear brush other than the mixed linear brush is a single-hair linear brush composed of only a standard cross-sectional yarn.
2. The rotating brush according to claim 1, wherein the one linear brush is configured by arranging a plurality of bristle rows adjacent to each other in which a bristle material is implanted in a linear shape.
The mixed linear brush is
An irregular hair material row consisting only of irregular cross-section yarns,
It is comprised from at least one of the standard hair material row | line | column which consists only of a standard cross-section thread | yarn, and the mixed hair material row | line | column which a standard cross-section thread | yarn and an irregular cross-section thread | yarn are mixed. Rotating brush.
The mixed linear brush is characterized in that an outer bristle row is composed of the standard bristle row or a mixed bristle row, and an inner bristle row is composed of the deformed bristle row. The rotating brush according to claim 5.
The mixed linear brush is characterized in that an outer bristle row is composed of the deformed bristle row, and an inner bristle row is composed of the standard bristle row or the mixed bristle row. The rotating brush according to claim 5.
The bristle row is configured as a linear arrangement of bristle stocks in which the bristle materials are bundled together,
As the hair material stock,
A deformed hair stock consisting only of a modified cross-section yarn,
The rotation according to claim 5, wherein at least one of a standard bristle stock consisting of only standard cross-section yarn and a mixed bristle stock obtained by mixing standard cross-section yarn and modified cross-section yarn is used. brush.
9. The mixed hair material row is configured by repeatedly arranging the irregular hair material stock, the standard hair material stock, or the mixed hair material stock in a preset arrangement pattern. Rotating brush as described in
In the mixed hair material rows adjacent to each other, the arrangement pattern is set so that the standard hair material strains or the mixed hair material stocks included in each mixed hair material row are not adjacent to each other. The rotating brush according to claim 9.
In the mixed linear brush, a plurality of bristle rows are arranged adjacent to each other so that the standard bristle stock or the mixed bristle stock is positioned on the rotational direction side of the rotary shaft body as viewed from the deformed bristle stock. The rotating brush according to claim 5, wherein the rotating brush is configured.
2. The rotation according to claim 1, wherein the standard cross-sectional yarn included in one mixed linear brush has a cross-sectional area ratio of the bristle material in a range of 15% to 60%. brush.
A vacuum cleaner suction tool comprising the rotating brush according to any one of claims 1 to 12.