JP5147187B2 - Rotating brush for vacuum cleaner and manufacturing method thereof - Google Patents

Description

The present invention is provided in a vacuum cleaner main body and a head connected to the main body via a hose, and for vacuum cleaners for scraping dust from floors such as carpets, tatami mats and flooring. The present invention relates to a rotating brush and a manufacturing method thereof .

  Generally, the vacuum cleaner includes a main body portion and a head connected to the main body portion via a hose. Then, the head is moved on the floor surface of carpet, flooring, tatami or the like, and air is sucked from the suction port provided on the bottom surface of the head, so that dust is sucked into the main body. . By the way, in recent years, in order to improve the dust collecting ability to the floor surface where it is difficult to suck dust only by air suction, such as a carpet, a lot of heads provided with a rotating brush have been seen ( For example, Patent Document 1).

The rotating brush disclosed in Patent Document 1 includes a rotating body having a round bar shape rotatably accommodated in a head, and a velor material (brush body) attached to the rotating body. The velor material is composed of a base fabric (base material) made of woven fabric and a pile row (fluff portion) raised on the base fabric, and the base fabric of the velour material is disposed on the peripheral surface of the rotating body. It is attached to the rotating body by being inserted and fixed in the provided recess (groove). Then, when the rotating brush is rotated in the head by a driving device such as a motor, the tip of the pile yarn constituting the pile row is brought into sliding contact with the floor surface, and dust is scraped off from the floor surface. ing.
JP 2003-52584 A

  By the way, the rotating brush of Patent Document 1 is low in rigidity because the velor base fabric is composed of woven fabric, and the insertability of the rotating body into the recess is not good. Here, in order to increase the rigidity of the base fabric of the velor material, it is conceivable to apply a water-based acrylic coating material to the base fabric. In order to sufficiently increase the rigidity of the base fabric, it is necessary to apply the water-based acrylic coating material over and over again, but the water-based acrylic coating material has a thickness that varies depending on application conditions and component variations. Variations are likely to occur.

  And when an error arises in the direction in which the thickness of the water-based acrylic coating material increases, it becomes difficult for the base fabric to be inserted into the recess of the rotating body, and it becomes difficult to attach the velor material to the rotating body. On the other hand, when an error occurs in the direction in which the thickness decreases, there is a problem in that the rigidity of the base fabric is insufficient and the velor material attached to the rotating body easily falls off from the recess of the rotating body.

The present invention has been made paying attention to such problems. The object of the present invention is to provide a rotary brush for a vacuum cleaner that can easily perform the work of attaching the brush body to the rotary body and that can prevent the brush body from falling off the rotary body, and its It is to provide a manufacturing method .

In order to achieve the above object, the invention according to claim 1 is a rotating body rotatably accommodated in a head for sucking dust on a floor surface, and a brush body attached to the rotating body. A rotary brush for a vacuum cleaner configured to bring the brush body into contact with the floor surface while rotating the rotary body when the head moves on the floor surface, The body includes a long plate- like base material inserted into a groove formed in the rotating body, and a fluff portion erected on the base material along the longitudinal direction of the base material, The base is made of a synthetic resin molded product, and the base has a pair of ridges as positioning means for the fluff, and the base end of the fluff is between the pair of ridges. on the wood being erected by ultrasonic welding, the ridges fluff during rotation of the rotating body And summarized in that the height does not inhibit flexure of the proximal portion.

According to the said structure, since the base material is comprised by the synthetic resin molded product, unlike the past, processing, such as coating, is not required. For this reason, it becomes possible to raise the dimensional accuracy of a base material. Therefore, it is possible to easily insert the base material into the groove formed in the rotating body, and it is possible to easily attach the brush body to the rotating body.
Moreover, since the base material is comprised by the synthetic resin molding, it has moderate rigidity and elasticity. For this reason, it becomes possible to suppress the drop-off of the brush body from the rotating body due to insufficient rigidity of the base material.

According to a second aspect of the present invention, in the first aspect of the present invention, a band-like fluff suppressing body is superposed on the base material together with the feather portion so as to be lower than the height of the fluff portion. The gist of the present invention is that the fluff portion is provided at substantially the center by sonic welding .
According to the above configuration, when the hair that has become dust on the floor surface is scraped off by the rotary brush when the vacuum cleaner is used, the hair is deeply inserted into the fluff portion of the brush body by the band-like tangling suppression body. It is possible to effectively suppress entry and entanglement. Further, in this case, since the height of the band-like fluff suppressing body is set to be lower than the height of the fluff portion, the band-shaped fluff suppressing body and the fluff portion scrape off dust on the floor surface. There is no negative impact on performance.

  The invention described in claim 3 is characterized in that the film of the rotary brush for a vacuum cleaner according to claim 1 or 2 is provided in a folded state.

According to the above configuration, when the vacuum cleaner is used, when the hair that has become dust on the floor surface is scraped off by the rotating brush, the hair is brought into the fluff portion 41 of the brush body 32 by the action of the film member. Since it becomes difficult to enter deeply, it becomes difficult for the hair to be entangled with the fluff portion.

  The invention according to claim 4 is the invention according to claim 1 or claim 3, wherein the fluff portion has a short hair portion having a short fluff length and a fluff length longer than the short hair portion. The short hair part and the long hair part are provided side by side along the longitudinal direction of the base material.

  According to the above configuration, since the thickness of the tip portion of the fluff portion is thinner than the thickness of the base end portion of the fluff portion, the fluff at the tip portion of the fluff portion is more easily bent than the fluff at the base end portion. Therefore, the fluff portion can suppress the sliding resistance with respect to the floor surface at the tip end portion while ensuring the fuzz at the base end portion (it is difficult for the fluff to fall down).

  The invention according to claim 5 is the invention according to any one of claims 1 to 4, wherein the fluff part and the fluff part are not erected on the base material. The gist is that the portions are alternately provided along the longitudinal direction of the substrate.
  According to the said structure, since the corner | angular part in the front-end | tip part of a fluff part contacts a floor surface frequently, it becomes possible to improve the scraping effect of the dust on a floor surface.

The invention described in 請 Motomeko 6 includes a rotary member which is rotatably accommodated in the head for sucking the dust on the floor surface, and a brush body which is attached to the rotating body, the head bed A method of manufacturing a rotary brush for a vacuum cleaner configured to bring the brush body into contact with a floor surface while rotating the rotary body when moving on a surface, wherein the brush body is rotated A long base material to be inserted into a groove formed in the body, and a fluff portion erected along the longitudinal direction of the base material on the base material, the base material being a synthetic resin molding The base material is provided with a pair of ridges as positioning means for the fluff portion, and the base end of the fluff portion is erected by ultrasonic welding on the base material between the pair of ridges. The gist is to do.
According to the said structure, the rotating brush for vacuum cleaners of Claim 1 can be manufactured.

ADVANTAGE OF THE INVENTION According to this invention, the rotation brush for vacuum cleaners which can perform the attachment operation | work of the brush body to a rotary body easily, and can suppress drop-off | omission of the brush body from a rotary body, and its manufacture A method can be provided.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.
First, the structure of the head of the vacuum cleaner in which the rotating brush is disposed will be described.

  As shown in FIGS. 1 and 2, the head 11 of the vacuum cleaner includes a case 12 that is substantially T-shaped in plan view. One end side of the connection pipe 13 is connected to the rear end portion of the case 12 so as to be rotatable with respect to the case 12, and the other end side of the connection pipe 13 is connected to a main body of a vacuum cleaner (not shown). ing. A long hole-like suction port 14 is provided in a front end portion of the bottom wall of the case 12 so as to extend in the left-right direction.

  On the inner bottom surface of the case 12, a partition plate 15 having a rectangular frame shape is erected so as to surround the suction port 14, and an air suction port 16 is provided at the center of the rear end of the partition plate 15. It is transparent. A motor bearing 17 is provided on the left inner surface of the case 12, and a tip end portion of a motor shaft 19 extending from the motor 18 is rotatably supported on the motor bearing 17.

  A rotation support 20 is provided on each of the left and right side walls of the partition plate 15, and both the rotation supports 20 are rotatably supported by brush bearings 21 provided on both the left and right inner surfaces of the case 12. Has been. A rotating brush 22 extending in the left-right direction is accommodated inside the partition plate 15, and both end portions of the rotating brush 22 are supported by both rotating supports 20.

  An endless belt 23 is hung between the left rotation support 20 and the roller 19 a attached to the tip of the motor shaft 19. The rotation of the motor 18 is transmitted to the rotary brush 22 via the motor shaft 19, the roller 19a, the belt 23, and the left rotation support body 20. When using the vacuum cleaner, the air inside the partition plate 15 is sucked into the main body of the vacuum cleaner via the air suction port 16 and the connection pipe 13 and the rotary brush 22 is rotated. As a result, dust such as dust, dust, and hair on the floor surface F is scraped off, and the dust is sucked from the suction port 14 together with air. At this time, the rotating brush 22 is rotated in a direction (a direction indicated by an arrow in FIG. 2) that does not prevent the head 11 of the vacuum cleaner from moving forward.

Next, the configuration of the rotating brush 22 will be described in detail.
As shown in FIGS. 3A and 3B, the rotating brush 22 includes a rotating body 31 made of a rod-shaped metal having an X-shaped cross section, and a brush body 32 attached to the rotating body 31. ing. That is, the rotator 31 is integrally formed with the base ends of the ridges 31a having four T-shaped cross sections so that the ridges 31a are arranged at equal intervals in the circumferential direction of the rotator 31. It is formed by twisting about 180 degrees in the circumferential direction over the whole. Therefore, on the peripheral surface of the rotator 31, concave grooves 33 are formed as four grooves that form a spiral shape between the protrusions 31 a. And the opening part 33a of each concave groove 33 is narrowed by the protrusion 31b with which the front-end | tip part of each protrusion 31a was equipped.

  As shown in FIGS. 4A and 4B, the brush body 32 includes a long strip-shaped base material 40 made of a polyamide molded product, and the base material 40 extending in the longitudinal direction of the base material 40. A plurality of fluffs made of polyamide (in this embodiment, a fiber of polyamide 6 having a single yarn thickness of 50 dtex) erected by ultrasonic welding on 40 are provided. Polyamide fluff is suitable for this application because it has moderate rigidity and elasticity, as well as excellent wear resistance and restoring force after deformation.

  Examples of the polyamide that becomes the material of the fluff constituting the base material 40 and the fluff portion 41 include polyamide 6, polyamide 66, polyamide 12, and the like. In this case, the base material 40 and the fluff portion 41 do not necessarily have to be made of the same material as long as they are the same polyamide-based synthetic resin. Therefore, the brush body 32, that is, the base material 40 and the fluff portion 41 have appropriate rigidity and elasticity. In particular, the base material 40 has higher rigidity than that of a conventional woven fabric.

  Further, on both sides of the fluff portion 41 on the base material 40 in the short direction, a pair of ridges 40 a are extended along the longitudinal direction of the base material 40 so as to sandwich the fluff portion 41. These two ridges 40a function as positioning means when the fluff 41 is ultrasonically welded onto the substrate 40. As shown in FIG. 3B, the width of the base material 40 is set so that it can be inserted into the concave groove 33 of the rotating body 31 and is larger than the width of the opening 33 a of the concave groove 33. Yes.

Next, a method for attaching the brush body 32 to the rotating body 31 will be described.
As shown in FIGS. 3A and 3B, when the brush body 32 is attached to the rotating body 31, the end of the rotating body 31 so that the fluff portion 41 protrudes outward from the opening 33 a of the groove 33. Then, the base material 40 of the brush body 32 is slid and inserted into each concave groove 33. Then, since the brush body 32 has moderate rigidity and elasticity, it is easily inserted into the rotating body 31 in a state of being twisted spirally along each concave groove 33. At this time, since the base material 40 having appropriate rigidity is strongly locked by the projecting piece 31b, the brush body 32 is prevented from dropping from the opening 33a of the concave groove 33.

Next, the operation of the rotating brush 22 will be described.
When using a vacuum cleaner, the head 11 is first placed on the floor F as shown in FIG. When the vacuum cleaner is operated in this state, the motor 18 is driven and the air inside the partition plate 15 passes through the air suction port 16 and is sucked into the main body of the vacuum cleaner (not shown) via the connection pipe 13. Is done. At this time, the rotating brush 22 is rotated counterclockwise as viewed from the left side (in the direction indicated by the arrow in the figure) in conjunction with the driving of the motor 18, and the fluff portion 41 of the rotating brush 22 is placed on the floor surface F. Touched. By the sliding contact of the fluff portion 41 with the floor surface F, dust on the floor surface F is scraped off and sucked into the main body of the vacuum cleaner (not shown) together with air.

According to the first embodiment described in detail above, the following effects are exhibited.
-Since the base material 40 is comprised by the molded article of polyamide, it has moderate rigidity and elasticity. For this reason, the base material 40 can be easily inserted into the concave groove 33 formed in the rotating body 31. That is, the attachment work of the brush body 32 to the rotating body 31 can be easily performed.

  In the state where the brush body 32 is inserted into the rotating body 31, the base body 40 having an appropriate rigidity is strongly locked by the projecting piece 31b, so that the brush body 32 is detached from the opening 33a of the groove 33. Can be suppressed.

  Since the base material 40 and the fluff portion 41 are made of the same polyamide, the fluff portion 41 can be strongly and easily ultrasonically welded (thermally welded) on the base material 40. For this reason, when the fluff portion 41 slides with respect to the floor surface F, the fluff portion 41 (fluff) can be prevented from falling off from the substrate 40.

(Second Embodiment)
Hereinafter, a second embodiment of the present invention will be described focusing on differences from the first embodiment.
An object of the second embodiment is to provide a rotary brush for a vacuum cleaner in which hair (particularly hair) that has become dust on the floor surface is less likely to get entangled.

  As shown in FIG. 5, the rotating brush of the second embodiment is a band-like film member as a tangling suppressor and a band-like member in the fluff portion 41 of the brush body 32 of the rotating brush 22 of the first embodiment. 50 is provided. The film member 50 is extended along the longitudinal direction of the base material 40 on the base material 40 in the center portion in the width direction in the fluff portion 41 in a folded state. In this case, the film member 50 is ultrasonically welded together with the fluff portion 41 on the base material 40. The film member 50 is preferably made of polyamide in order to facilitate ultrasonic welding of the film member 50 to the substrate 40. Further, the height of the film member 50 is set to be lower than the height of the fluff portion 41 on the substrate 40. In the present embodiment, the height of the film member 50 is set to about half of the height of the fluff portion 41.

  With this configuration, when the vacuum cleaner is used, when the hair that has become dust on the floor surface F is scraped off by the rotary brush, the hair is caused to fluff by the action of the film member 50. Since it becomes difficult to enter deeply into 41, the hair does not easily get entangled with the fluff portion 41.

According to the second embodiment described in detail above, the following effects are exhibited.
When using a vacuum cleaner, when the hair that has become dust on the floor surface F is scraped off by the rotating brush, the film member 50 causes the hair to enter deeply into the fluff 41 of the brush body 32 and become entangled. Can be effectively suppressed. In this case, since the height of the film member 50 is set to be lower than the height of the fluff portion 41, the film member 50 scrapes off dust on the floor surface F by the fluff portion 41. Will not be adversely affected.

  -Since the tangle suppression body is comprised by the strip | belt-shaped film member 50, it can manufacture easily.

Examples and comparative examples that further embody the first embodiment will be described below.
Example 1
As shown in FIG. 10A, in the brush body 32 of the first embodiment, the length A1 in the short direction of the base material 40 is set to 3.0 mm, and the thickness B1 of the base material 40 is set to 0.7 mm. This was designated as Example 1. Note that the length in the longitudinal direction of the brush body 32 of the first embodiment is set to 200 mm.

(Comparative Example 1)
As shown in FIG. 10 (b), Comparative Example 1 is a brush body made of a long pile fabric. That is, the brush body of Comparative Example 1 has an acrylic emulsion coating layer uniformly on the entire lower surface of the base cloth 70 corresponding to the base material 40 of the brush body 32 of Example 1 (the surface opposite to the surface provided with the fluff portion). 70a is provided. In the brush body of Comparative Example 1, the length A2 in the short direction of the base cloth 70 is set to 3.4 mm, and the thickness B2 of the base cloth 70 and the acrylic emulsion coating layer 70a is set to 0.7 mm. . In addition, the length of the longitudinal direction of the brush body of this comparative example 1 is set to 200 mm.

(fixing jig)
As shown to Fig.11 (a), the fixing jig 71 consists of elongate square cylindrical aluminum. An opening is provided in the central portion of the upper wall of the fixing jig 71 along the longitudinal direction of the fixing jig 71, and the width Y in the short direction of the opening is set to 2.0 mm. ing. The width X in the short direction inside the fixing jig 71 is set to 3.5 mm, and the height Z inside the fixing jig 71 is set to 1.0 mm. Furthermore, the length of the fixing jig 71 in the longitudinal direction is set to 200 mm.

(Test method)
As shown in FIGS. 11 (b) and 11 (c), the pullout strength test was performed as follows for Example 1 and Comparative Example 1 using a fixing jig 71.

  First, the base material 40 of the brush body 32 of Example 1 is inserted into the fixing jig 71 so that the fluff 41 protrudes from the opening of the fixing jig 71 fixed on the floor surface. To do. Subsequently, in a state where the central portion in the longitudinal direction of the fluff portion 41 is sandwiched by a chuck jig 72 made of a pair of square plate-like plates having a width L of 50 mm, the chuck jig 72 is moved upwards every minute. The substrate was pulled up at a speed of 5 mm, and the tensile load when at least a part of the substrate 40 was detached from the opening of the fixing jig 71 to the outside of the fixing jig 71 was measured.

  Similarly, for the brush body of Comparative Example 1, the tensile load when at least a part of the base fabric 70 was detached from the opening of the fixing jig 71 to the outside of the fixing jig 71 was measured. In this pull-out strength test, two samples were prepared for each of Example 1 and Comparative Example 1, and the tests were performed, and the tensile loads were compared with the respective average values. As a result of the test, the tensile load of Example 1 was 328N, while the tensile load of Comparative Example 1 was 328N.

(Discussion)
From the above results, although the length A1 of the base material 40 of Example 1 in the short direction is shorter than the length A2 of the base cloth 70 of Comparative Example 1 in the short direction, Example 1 is better. Compared to Comparative Example 1, it was shown that the anti-drop-off performance with respect to the fixing jig 71 is excellent (the pull-out strength is strong).

(Example of change)
Each of the above embodiments can be modified and embodied as follows.
-As a material of the base material 40 and the fluff part 41, you may use a polypropylene, polyester, an acrylic resin, a urethane resin, etc. other than polyamide. In this case, if it is impossible to thermally weld the fluff 41 on the substrate 40, it is necessary to select an attachment method (for example, a method using an adhesive) according to these materials.

  The polyamide constituting the fluff portion 41 of the brush body 32 may be colored with a pigment or the like. For example, the fluff portion 41 may be colored in a stripe shape in which a plurality of different colors are alternately displayed. If it does in this way, the design nature of brush body 32 and by extension, rotation brush 22 can be improved.

  As shown in FIG. 6, the fluff portion 41 of the brush body 32 is constituted by a short hair portion 41a having a short fluff length and a long hair portion 41b having a fluff length longer than the short hair portion 41a. These short hair portions 41 a and long hair portions 41 b may be arranged on the base material 40 along the longitudinal direction of the base material 40. In this case, the short hair portion 41a and the long hair portion 41b are set to be halved from the center of the fluff portion 41 in the width direction. That is, a step between the short hair portion 41a and the long hair portion 41b is generated at the center of the fluff portion 41 in the width direction.

  If comprised in this way, since the thickness of the front-end | tip part of the fluff part 41 becomes thinner than the thickness of the base end part of this fluff part 41, the fluff of the front-end | tip part in the fluff part 41 bends rather than the fluff of a base end part. It can be made easier. Therefore, fuzz can be secured at the proximal end portion of the fluff portion 41 (the fluff is difficult to fall down), and the sliding resistance against the floor surface F can be suppressed at the distal end portion of the fluff portion 41 when the rotary brush 22 is rotated. The burden on the motor 18 can be reduced.

  As shown in FIG. 7, the fluff portions 41 and the non-fluff portions 60 on which the fluff portions 41 are not erected are alternately arranged at equal intervals along the longitudinal direction of the base material 40. You may make it provide. In this case, the fluff portion 41 on the substrate 40 has a comb-teeth shape in a side view. In this way, when the vacuum cleaner is used, when the dust on the floor surface F is scraped off by the rotating brush, the corner portion at the tip of the fluff portion 41 frequently abuts against the floor surface F. Thus, the dust scraping effect on the floor surface F can be enhanced.

  -As shown in FIG. 8, you may make the fluff part 41 incline in the direction opposite to the rotation direction of the rotary body 31 (rotary brush 22). In this way, when the rotating body 31 rotates while the fluff portion 41 is in sliding contact with the floor surface F, the sliding resistance between the fluff portion 41 and the floor surface F can be suppressed. The rotational resistance of the rotating brush 22) can be suppressed. For this reason, the load concerning the motor 18 can also be reduced.

  Further, in this case, by using a thick fiber for the fluff constituting the fluff portion 41, it is possible to obtain a beating effect on the carpet surface (dust expelling effect), and the fluff constituting the fluff portion 41 is softly wiped off. A polishing effect on the flooring surface can be obtained by using highly effective fibers.

  -In 2nd Embodiment, as shown to Fig.9 (a), you may make it provide the film member 50 on the base material 40 so that the fluff part 41 may be supported on both sides in the transversal direction. If it does in this way, it can make the fluff part 41 hard to fall down, suppressing that hairs, such as hair with respect to the fluff part 41, become entangled. Further, as shown in FIG. 9B, the film member 50 is provided on the base material 40 so as to support the fluff portion 41 from both sides in the short side direction, and the film member 50 is also provided in the fluff portion 41. May be provided.

In the second embodiment, the film member 50 may be intermittently extended on the base material 40 along the longitudinal direction of the base material 40.
-In 2nd Embodiment, instead of the film member 50, you may use strip | belt-shaped paper, a cloth, a textile fabric, a knitted fabric, etc. as a tangling suppression body and a strip | belt-shaped body.

-In 2nd Embodiment, if the height of the film member 50 is lower than the height of the fluff part 41, you may set it to arbitrary values.
Further, technical ideas that can be grasped from the above embodiments will be described below.

(1) A rotating body rotatably accommodated in a head for sucking dust on the floor surface, and a brush body attached to the rotating body, and when the head moves on the floor surface A rotary brush for a vacuum cleaner configured to bring the brush body into contact with a floor surface while rotating the rotary body,
The brush body includes a base material serving as a mounting portion for the rotating body, and a fluff portion erected on the base material,
A rotating brush for a vacuum cleaner, wherein a hair entanglement suppressing body is provided on the substrate so as to be lower than a height of the fluff portion.

If comprised in this way, it can suppress that hairs, such as hair, become entangled with a fluff part.
(2) The rotating brush for a vacuum cleaner according to (1), wherein the fluff suppressing body is disposed so as to support the fluff portion from a side of the fluff portion.

If comprised in this way, a fluff part can be made hard to fall, suppressing that hairs, such as hair with respect to a fluff part, are entangled.
(3) The rotating brush for a vacuum cleaner according to (1) or (2), wherein the entanglement suppressing body is configured by a band-shaped body.

  If comprised in this way, since the structure of a hair-entanglement suppression body becomes simple, it can manufacture easily.

The plane sectional view showing the head of the vacuum cleaner of a 1st embodiment. The sectional side view which shows the use condition of the head of the vacuum cleaner of 1st Embodiment. In 1st Embodiment, (a) is a perspective view which shows the rotating brush of a vacuum cleaner, (b) is the side surface enlarged view of (a). In 1st Embodiment, (a) is a side view of a brush body, (b) is a front view of (a). The side view of the brush body of 2nd Embodiment. The side view of the brush body of the example of a change. The front view of the brush body of the example of a change. The side view of the brush body of the example of a change. (A), (b) is a side view of the brush body of a modified example. In an Example, (a) is a side view of the brush body of Example 1, (b) is a side view of the brush body of Comparative Example 1. In an Example, (a) is a side view of a fixing jig, (b) is a side view showing the state of a pull-out strength test, and (c) is a front view showing the state of a pull-out strength test.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 11 ... Head of vacuum cleaner, 22 ... Rotating brush, 31 ... Rotating body, 32 ... Brush body, 33 ... Groove as a groove part, 40 ... Base material, 41 ... Fluff part, 41a ... Short hair part, 41b ... Long hair Part, 50 ... film member as a hair-entanglement suppressing body and a belt-like body, 60 ... non-fluff part, F ... floor surface.

Claims (6)

A rotating body rotatably accommodated in a head for sucking dust on the floor surface, and a brush body attached to the rotating body, and the rotation when the head moves on the floor surface A rotating brush for a vacuum cleaner configured to bring the brush body into contact with the floor surface while rotating the body,
The brush body is a long plate- like base material inserted into a groove formed in the rotating body,
A fluff portion erected on the base material along the longitudinal direction of the base material,
The base material is made of a synthetic resin molded product, and the base material has a pair of ridges as positioning means for the fluff portion, and a base end of the fluff portion is between the pair of ridges. Rotation for a vacuum cleaner characterized in that it is erected by ultrasonic welding on a substrate, and the ridges are at a height that does not hinder the deflection of the base end of the fluff during rotation of the rotating body brush. On the base material, a band-like entanglement suppressor is ultrasonically welded together with the feather portion so as to be lower than the height of the fluff portion, and is provided at substantially the center of the fluff portion. The rotating brush for a vacuum cleaner according to claim 1.   The rotary brush for a vacuum cleaner according to claim 1 or 2, wherein the film is provided in a folded state. The fluff portion includes a short hair portion having a short fluff length and a long hair portion having a fluff length longer than the short hair portion, and the short hair portion and the long hair portion extend along the longitudinal direction of the base material. The rotating brush for a vacuum cleaner according to any one of claims 1 to 3, wherein the rotating brush is arranged in parallel.   The fluff portion and the non-fluff portion on which the fluff portion is not erected are alternately provided on the base material along the longitudinal direction of the base material. Item 5. A rotating brush for a vacuum cleaner according to any one of items 4 to 4. A rotating body rotatably accommodated in a head for sucking dust on the floor surface, and a brush body attached to the rotating body, and the rotation when the head moves on the floor surface A method of manufacturing a rotating brush for a vacuum cleaner configured to bring the brush body into contact with a floor surface while rotating the body,
The brush body is a long plate- like base material inserted into a groove formed in the rotating body,
A fluff portion erected on the base material along the longitudinal direction of the base material,
Together with the substrate is formed of a synthetic resin molding, the base does not inhibit flexure of the fluff of the base end portion during rotation of Rutotomoni the rotating body provided with a pair of projections as the positioning means of the fluff portion A method for producing a rotary brush for a vacuum cleaner, characterized in that the base end of the fluff portion is erected by ultrasonic welding on the base material between the pair of protrusions.

Images