JP6546753B2 - Rotating brush - Google Patents

Description

  The present invention relates to, for example, a rotating brush used by being attached to the head of a vacuum cleaner or the like.

  Generally, a vacuum cleaner includes a main body and a head connected to the main body via a connection pipe. By moving the head on a floor surface such as a carpet, flooring, tatami mat or the like, dust is sucked into the main body by suctioning air from a suction port provided on the bottom of the head.

  In recent years, for example, many vacuum cleaners provided with a rotating brush in the head have been seen to improve the dust collection ability to a floor surface that is difficult to absorb dust only by suction of air, such as carpets, for example. (See, for example, Patent Document 1). Such a rotating brush is provided with a rotating body and two types of two brush portions having different functions alternately attached at equal intervals in the circumferential direction on the circumferential surface of the rotating body, and the rotating body is provided. By rotating, two types of brush parts are designed to scrape off the dust on the floor surface.

Unexamined-Japanese-Patent No. 2004-249009

  By the way, in addition to having to prepare two kinds of brush parts as described above, the support parts for supporting these two kinds of brush parts are respectively matched to the kinds of the brush parts and the circumference of the rotating body There is a problem that the configuration becomes complicated because it needs to be formed on the surface.

  The present invention has been made focusing on such problems. The object of the invention is to provide a rotating brush which can be simplified in construction.

Hereinafter, the means for solving the above-mentioned subject and its operation effect are described.
The rotary brush which solves the above-mentioned subject stands up and set up at least one side of a plurality of 1st pile yarns and a plurality of 2nd pile yarns softer than the 1st pile yarn on a foundation cloth on a peripheral surface of a rotating body. An area of the first pile yarn and an area of the second pile yarn were formed on the circumferential surface by winding the pile fabric woven in such a manner that the pile yarn side is the outer side.

  According to this configuration, the area of the first pile yarn and the area of the second pile yarn having different hardness are formed on the circumferential surface of the rotating body only by winding the pile fabric around the circumferential surface of the rotating body. Therefore, the configuration of the rotating brush can be simplified.

In the rotating brush, it is preferable that the height of the second pile yarn from the base fabric be lower than that of the first pile yarn.
According to this configuration, for example, when used as a rotating brush for cleaning the floor surface, the scraping resistance to dust and the like on the floor surface by the first pile yarn is improved while suppressing the sliding resistance against the floor surface. Can.

In the rotating brush, preferably, the second pile yarn is constituted by a crimped yarn.
According to this configuration, for example, when used as a rotating brush for cleaning the floor surface, it is possible to improve the wiping property to the dust and the like on the floor surface by the second pile yarn.

In the rotating brush, it is preferable that the area of the second pile yarn is larger in area than the area of the first pile yarn.
According to this configuration, for example, when used as a rotary brush for cleaning the floor surface, the wiping property to dust and the like on the floor surface by the second pile yarn can be further improved.

In the rotating brush, preferably, the pile fabric is spirally wound around the circumferential surface of the rotating body.
According to this configuration, the winding angle of the pile fabric with respect to the circumferential surface of the rotating body can be easily adjusted by changing the width of the pile fabric and the outer diameter of the rotating body.

In the rotating brush, it is preferable that the area of the first pile yarn and the area of the second pile yarn are alternately arranged in the circumferential direction of the rotating body.
According to this configuration, for example, when used as a rotating brush for cleaning the floor, by rotating the rotating brush, both the first pile yarn and the second pile yarn can be made to the same place on the floor. It can slide alternately.

  According to the present invention, the configuration can be simplified.

Sectional drawing which shows the use condition of the head of a vacuum cleaner provided with the rotating brush of one Embodiment. Sectional drawing of the head of the vacuum cleaner. The schematic diagram which shows the state when forming the rotating brush attached to the head. The cross-sectional schematic diagram when the pile fabric of the same rotation brush is cut | disconnected along the transversal direction. The schematic diagram which shows the manufacture process of pile textiles. The schematic diagram which shows the state when forming the rotation brush of a modification. (A)-(c) is a cross-sectional schematic diagram when the pile fabric of the rotating brush of a modification is cut | disconnected along the transversal direction. The top view schematic diagram of the rotating brush of the example of a change.

Hereinafter, an embodiment in which a rotating brush is mounted on a head of a vacuum cleaner and embodied is described based on the drawings.
As shown in FIG. 1 and FIG. 2, the head 11 of the vacuum cleaner for sucking in dust and the like on the floor surface F includes a case 12 having a substantially T-shape in plan view. One end side of the connection pipe 13 is rotatably connected to the case 12 at the rear end of the case 12, and the other end side of the connection pipe 13 is connected to a main body (not shown) of the vacuum cleaner. At a position on the front end side of the bottom wall of the case 12, a rectangular suction port 14 which is long in the left-right direction is formed to penetrate the bottom wall.

  A rectangular frame-shaped partition plate 15 is erected on the inner bottom surface of the case 12 so as to surround the suction port 14, and the central portion of the rear wall constituting the partition plate 15 is an air to penetrate the rear wall The suction port 16 is formed. A motor bearing 17 is provided on the left inner side surface of the case 12, and the motor bearing 17 rotatably supports the tip of a motor shaft 19 extending from a motor 18 provided behind the partition plate 15 in the case 12.

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

  An endless belt 23 is wound around the left rotation support 20 and the pulley 19 a attached to the motor shaft 19. Then, by driving the motor 18, the rotational driving force of the motor 18 is transmitted to the rotary brush 22 via the motor shaft 19, the pulley 19a, the belt 23, and the rotary support 20 on the left side.

Next, the configuration of the rotating brush 22 will be described in detail.
As shown in FIG. 3, the rotary brush 22 is attached to the cylindrical rotary body 31 in a state of being spirally wound around the outer peripheral surface of the rotary body 31 with no gap so that the pile yarn side is the outer side (winding) And a band-like pile fabric 32. The rotating body 31 is formed of, for example, a metal or a synthetic resin. The bonding method of the pile fabric 32 to the rotating body 31 can be arbitrarily selected, and for example, the pile fabric 32 may be bonded to the outer peripheral surface of the rotating body 31 by adhesion with an adhesive or adhesion with a double-sided adhesive tape .

  The rotary support 20 also has a cylindrical fitting portion 20a and an annular flange portion 20b provided on the outer peripheral surface of the fitting portion 20a. The rotary brush 22 is supported by the two rotary supports 20 by inserting the insertion portions 20 a of the rotary support 20 into the openings at both ends in the axial direction of the rotary body 31. The rotary support 20 may be integrally formed in advance at both ends in the axial direction.

Next, the configuration of the pile fabric 32 will be described in detail.
As shown in FIG. 3 and FIG. 4, the pile fabric 32 is constructed so as to stand on the belt-like base fabric 33 and the base fabric 33 made of a woven fabric obtained by weaving warp yarns 33 a and weft yarns 33 b. A plurality of interwoven first pile yarns 34 and a plurality of second pile yarns 35 are provided. A coating layer 36 made of a synthetic resin is formed on the back surface of the base fabric 33 (the surface opposite to the side of the first pile yarn 34 and the second pile yarn 35 in the base fabric 33). The base of the pile yarn 34 and the plurality of second pile yarns 35 and the base fabric 33 are firmly joined.

  For the warp yarn 33a and weft yarn 33b constituting the base fabric 33, for example, polyester yarns can be used, but not limited to polyester yarns, polyethylene yarns, polyamide yarns, polypropylene yarns An acrylic resin yarn, a urethane resin yarn, or the like may be used.

  In the present embodiment, the first pile yarn 34 is formed of a polyamide-made straight multifilament yarn having an outer diameter of 0.05 mm, and the second pile yarn 35 is formed of a polyamide-made crimped material having an outer diameter of 0.03 mm. It is constituted by the applied multifilament yarn (crimped yarn). Therefore, the second pile yarn 35 is softer than the first pile yarn 34 because the second pile yarn 35 is thinner than the first pile yarn 34 and is configured by the crimped yarn.

  The polyamide yarns constituting the first pile yarns 34 and the second pile yarns 35 are suitable for this application because they are excellent in wear resistance and recovery. The material of the first pile yarn 34 and the second pile yarn 35 is not limited to polyamide, and may be polyester, polyethylene, polypropylene, acrylic resin, urethane resin, or the like.

  On the base fabric 33, a plurality of rows (three rows in FIG. 4) of second pile yarns 35 extending in the longitudinal direction (direction orthogonal to the paper surface in FIG. 4) at the central portion in the short direction (left and right direction in FIG. 4). The first pile yarns 34 are woven in rows extending in the longitudinal direction so as to sandwich a plurality of rows of second pile yarns 35 at both ends in the short direction. In this case, the second pile yarns 35 are set to be lower in height from the base fabric 33 than the first pile yarns 34. Furthermore, in this case, the area of the second pile yarn 35 is set to be larger than the area of the first pile yarn 34 on the base fabric 33.

  Therefore, when the rotary brush 22 is formed by winding the pile fabric 32 spirally without a gap such that the first pile yarn 34 and the second pile yarn 35 are on the outer side on the outer peripheral surface of the rotary body 31, An area of the first pile yarn 34 and an area of the second pile yarn 35 are formed on the outer peripheral surface of the rotating body 31. At this time, the area of the first pile yarn 34 and the area of the second pile yarn 35 are alternately arranged in the circumferential direction of the rotary body 31.

Next, a method of manufacturing the pile fabric 32 will be described.
As shown in FIG. 5, when forming the pile fabric 32, first, the two base fabrics 33 are arranged to face each other. The lengths of the first pile yarn 34 and the second pile yarn 35 change in accordance with the distance between the two base fabrics 33 at this time. Subsequently, the first pile yarns 34 and the crimped second pile yarns 35 are woven so as to alternately extend over the weft yarns 33 b of the two base fabrics 33. Subsequently, the centers of the first pile yarn 34 and the second pile yarn 35 wound around the two base fabrics 33 are cut (cut along the dashed dotted arrow in FIG. 5).

  Then, the fibers constituting the first pile yarn 34 and the second pile yarn 35 are spread. Thereby, two pile fabrics 32 are simultaneously formed. At this time, the second pile yarn 35 has the same length as the first pile yarn 34 because it is crimped and naturally shrinks and spreads horizontally, so the height from the top of the base fabric 33 Is lower than that of the first pile yarn 34. That is, a step is formed between the area of the first pile yarn 34 and the area of the second pile yarn 35.

Next, the operation of the rotating brush 22 will be described.
Now, when using a vacuum cleaner, the head 11 is first mounted on the floor surface 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 the main body (not shown) of the vacuum cleaner via the connection pipe 13 It is sucked inside.

  At this time, the first pile yarn 34 and the second pile of the rotary brush 22 are rotated while rotating the rotary brush 22 in a counterclockwise direction (direction shown by the arrow in FIG. 1) as viewed from the left The yarn 35 is in sliding contact with the floor surface F. Then, dust and the like on the floor surface F are mainly scraped off by the straight relatively hard first pile yarns 34 and wiped off mainly by the bulky and relatively soft second pile yarns 35 by crimping.

  Furthermore, at this time, the area of the first pile yarn 34 is smaller in area than the area of the second pile yarn 35 and is higher in height from the base fabric 33. For this reason, the sliding resistance with respect to the floor surface F of the rotating brush 22 is suppressed, and dust and the like on the floor surface F is effectively scraped off mainly by the first pile yarns 34.

  As described above, the rotating brush 22 has the first pile yarn 34 having high scraping ability to dust and the like on the floor F, and the second pile yarn 35 having high wiping ability to dust and the like on the floor F Therefore, the cleaning effect on the floor surface F can be enhanced.

According to the embodiment described above in detail, the following effects are exhibited.
(1) The rotating brush 22 has a plurality of first pile yarns 34 and a plurality of second pile yarns 35 softer than the first pile yarns 34 erected on the base fabric 33 on the outer peripheral surface of the rotating body 31. The area of the first pile yarn 34 and the area of the second pile yarn 35 are formed on the outer peripheral surface of the rotary body 31 by winding the woven pile fabric 32 so that the pile yarns 34 and 35 are on the outer side. . Therefore, the area of the first pile yarns 34 and the area of the second pile yarns 35 having different hardnesses are formed on the outer peripheral surface of the rotary body 31 only by winding the pile fabric 32 around the outer peripheral surface of the rotary body 31. As a result, the configuration of the rotating brush 22 can be simplified.

  (2) In the rotating brush 22, the second pile yarn 35 is lower in height from the base fabric 33 than the first pile yarn 34. For this reason, when the floor F is cleaned with a vacuum cleaner, the contact pressure of the second pile yarn 35 on the floor F is smaller than the contact pressure of the first pile yarn 34 on the floor F. It is possible to improve the scraping ability of the first pile yarn 34 to dust and the like on the floor surface F while suppressing the sliding resistance to the floor surface F 22.

  (3) In the rotating brush 22, the second pile yarn 35 is constituted by a crimped yarn. For this reason, since the bulk of the second pile yarn 35 can be increased, the wiping performance of the second pile yarn 35 on dust and the like on the floor surface F can be improved when the floor surface F is cleaned with the vacuum cleaner. can do.

  (4) In the rotating brush 22, the area of the second pile yarn 35 is larger in area than the area of the first pile yarn 34. Therefore, when the floor surface F is cleaned with the vacuum cleaner, the wiping property of the second pile yarn 35 against dust and the like on the floor surface F is obtained, and the area of the area of the second pile yarn 35 is the first pile yarn 34 It can be made higher than the case where it is less than the area of the region of.

  (5) In the rotating brush 22, the pile fabric 32 is spirally wound around the outer peripheral surface of the rotating body 31. Therefore, the winding angle of the pile fabric 32 with respect to the outer peripheral surface of the rotating body 31 can be easily adjusted by appropriately changing the width (length in the latitudinal direction) of the pile fabric 32 and the outer diameter of the rotating body 31. it can.

  (6) In the rotating brush 22, the area of the first pile yarns 34 and the area of the second pile yarns 35 are alternately arranged in the circumferential direction (rotational direction) of the rotating body 31. Therefore, when the floor surface F is cleaned with the vacuum cleaner, both the first pile yarns 34 and the second pile yarns 35 alternate with respect to the same place on the floor surface F by rotating the rotating brush 22. Can slide. Therefore, dust and the like on the floor surface F can be wiped off by the rotating brush 22 while being scraped off.

(Modification example)
The above embodiment can also be embodied by being modified as follows.
As shown in FIG. 6, the width of the pile fabric 32 is increased (the length in the latitudinal direction is increased), and the width of the area of the second pile yarn 35 is increased (the length in the latitudinal direction is increased). You may do so. That is, the winding pitch of the pile fabric 32 with respect to the rotating body 31 may be increased. In this case, the first pile yarn 34 may be made of, for example, a straight monofilament yarn of polyamide having an outer diameter of 0.2 mm.

  As shown in FIG. 7A, a row of first pile yarns 34 and a row of second pile yarns 35 extending in the longitudinal direction of the pile fabric 32 (direction perpendicular to the paper in FIG. 7A), Alternatively, they may be alternately arranged along the lateral direction of the pile fabric 32 (the left and right direction in FIG. 7A).

As shown in FIG. 7B, in the pile fabric 32, any one of the two rows of first pile yarns 34 that sandwich the three second pile yarns 35 may be omitted.
-As shown in FIG. 7 (c), in the pile fabric 32, one row of first pile yarns 34 disposed in the center of the short side direction (the left and right direction in FIG. 7 (c)) of the pile fabric 32 is The first pile yarn 34 and the second pile yarn 35 may be arranged so as to be sandwiched by the second pile yarns 35 in two rows.

  As shown in FIG. 8, a plurality of areas of the first pile yarns 34 are partially formed on the surface of the pile fabric 32 in the rotating brush 22 so as to have, for example, a polka dot pattern, and the first pile yarns on the surface of the pile fabric 32 The area of the second pile yarn 35 may be formed in all areas other than the area 34.

In the rotating brush 22, the area of the first pile yarns 34 and the area of the second pile yarns 35 do not necessarily have to be alternately arranged in the circumferential direction (rotational direction) of the rotating body 31.
In the rotating brush 22, the pile fabric 32 does not have to be spirally wound around the outer peripheral surface of the rotating body 31. For example, the rotating brush 22 may be formed by bonding the pile fabric 32 around the entire outer peripheral surface of the rotating body 31 by one turn.

  In the rotating brush 22, the area of the second pile yarn 35 does not necessarily have to be larger than the area of the first pile yarn 34. For example, the area of the second pile yarn 35 may be the same area as the area of the first pile yarn 34, or the area may be narrower than the area of the first pile yarn 34.

In the rotating brush 22, the second pile yarns 35 need not necessarily be made of crimped yarns. For example, the second pile yarn 35 may be constituted by a straight yarn.
In the rotating brush 22, the second pile yarn 35 may be formed of a heat-shrink yarn. In this way, the height of the second pile yarn 35 can be easily lowered by applying heat.

In the rotating brush 22, the first pile yarn 34 does not necessarily have to be constituted by a straight yarn. For example, the first pile yarn 34 may be constituted by a crimped yarn.
In the rotating brush 22, both the first pile yarn 34 and the second pile yarn 35 may be constituted by straight yarns, and both the first pile yarn 34 and the second pile yarn 35 are constituted by crimped yarns May be

  In the rotating brush 22, the second pile yarns 35 do not necessarily have to be lower in height from the base fabric 33 than the first pile yarns 34. The second pile yarn 35 may have the same height from the base fabric 33 as the first pile yarn 34, or may have the height from the base fabric 33 higher than the first pile yarn 34. .

  In the rotating brush 22, at least one of the first pile yarn 34 and the second pile yarn 35 may be colored. In this case, since the striped pattern can be provided by coloring the first pile yarn 34 and the second pile yarn 35 in different colors, in particular, the design can be improved.

  The rotating brush 22 separately forms a pile fabric in which only the plurality of first pile yarns 34 are woven into the base fabric 33 and a pile fabric in which only the plurality of second pile yarns 35 is woven into the base fabric 33 These two pile fabrics may be formed so as to be wound around the outer peripheral surface of one rotating body 31.

  The rotating brush 22 is formed by spirally winding the pile fabric 32 on the outer peripheral surface of the rotating body 31 so that a plurality of gaps are formed at equal intervals in the axial direction of the rotating body 31. It is also good. In this case, in the rotary brush 22, the outer peripheral surface of the rotary body 31 is exposed from the gap of the pile fabric 32 extending in a spiral shape.

The width (length in the lateral direction) of the pile fabric 32 and the outer diameter of the rotating body 31 may be arbitrarily changed.
The rotating brush 22 may be used for cleaning filters such as an air conditioner and a ventilation fan or for removing toner attached to a photosensitive drum in an image forming apparatus.

  22 ... rotating brush, 31 ... rotating body, 32 ... pile fabric, 33 ... base fabric, 34 ... first pile yarn, 35 ... second pile yarn.

Claims (3)

A pile fabric in which at least one of a plurality of first pile yarns and a plurality of second pile yarns softer than the first pile yarns is erected on the base fabric on a circumferential surface of the rotating body is a pile yarn An area of the first pile yarn and an area of the second pile yarn are formed on the circumferential surface by winding so that the side is the outer side,
On the base fabric, the second pile yarn is woven in a longitudinally extending line at a central portion in the short direction, and at both ends in the short direction so as to sandwich the second pile yarn. Said first pile yarns in a longitudinally extending row are interwoven;
The second pile yarn is composed of a crimped yarn, the height from the base fabric than the yarn of the first pile rather low,
A rotary brush characterized in that the area of the first pile yarn and the area of the second pile yarn are alternately arranged in the circumferential direction of the rotary body .   The rotating brush according to claim 1, wherein the area of the second pile yarn is larger in area than the area of the first pile yarn.   The rotating brush according to claim 1, wherein the pile fabric is spirally wound around the circumferential surface of the rotating body.