JP2022111676A - Brush and rotary brush - Google Patents

Abstract

To provide a brush and rotary brush capable of restricting hair or the like from being entangled in a fluff part.SOLUTION: A brush 32 is attached to a rotary body to be rotatably stored in a head of a vacuum cleaner. The brush 32 comprises: a pile fabric 36 including a belt shape base fabric 38 obtained by weaving with a warp yarn and a weft yarn and a belt shape fluff part 40 made of a plurality of pile yarns woven in the base fabric 38 so as to be erected on a front surface being one side surface of the base fabric 38; and an adjacent member 37 arranged to be adjacent to the fluff part 40 on the front surface of the base fabric 38. The adjacent member 37 includes: a belt shape part 44 overlapped with the fluff part 40 and extending in a longitudinal direction X of the base fabric 38; and a joint part 45 to be joined while being overlapped with the base fabric 38.SELECTED DRAWING: Figure 6

Description

TECHNICAL FIELD The present invention relates to a rotating brush attached to the head of a vacuum cleaner and a brush provided on the rotating brush.

Generally, an electric vacuum cleaner includes a main body and a suction tool connected to the main body through a hose. In the electric vacuum cleaner, dust is sucked into the main body by sucking air from a suction port provided on the bottom surface of the suction tool while moving the suction tool on a floor surface such as a carpet, flooring, tatami mats, or the like. configured to be In recent years, in order to improve the ability to collect dust on floors such as carpets that are difficult to absorb dust by air suction alone, a rotating brush is provided in the suction tool to scrape dust from the floor. are becoming more common.

Such a rotating brush has a structure in which the brush is attached to a rotating body. Conventionally, as such a brush, for example, a brush assembly disclosed in Patent Document 1 is known. This brush assembly is formed by sewing a plurality of piles into the grooves of the brush base by sewing at two different positions separated from each other so as to connect the piles. After inserting the brush, the brush base and the brush are sewn together. Manufactured by

JP-A-6-125811

By the way, when the brush assembly as described above is used as a rotating brush for a vacuum cleaner, hair, pet hair, etc. tend to get wrapped around the brush assembly. For this reason, there is a problem that hairs, pet hairs, and the like get into the vicinity of the base of a plurality of piles constituting the brush and become entangled.

Means for solving the above problems and their effects will be described below.
A brush that solves the above problems is a brush that is attached to a rotating body that is rotatably accommodated in the head of an electric vacuum cleaner, and includes a strip-shaped base fabric made by weaving warp threads and weft threads, and the base fabric A pile fabric having a belt-like fluff portion made of a plurality of pile yarns woven into the base fabric so as to stand on a surface that is one side of the base fabric, and the fluff portion on the surface of the base fabric. and an adjoining member provided adjacently, wherein the adjoining member is a band-shaped portion that overlaps the fluff portion and extends in the longitudinal direction of the base fabric, and a joint that is joined in a state of being overlapped with the base fabric. and a part.

According to this configuration, the adjoining member is joined to the base fabric at the joint portion in a state in which the belt-like portion is overlapped with the fluff portion and the joint portion is overlapped with the base fabric. For this reason, when hair or the like is wound around the fluff portion, the belt-like portion prevents the hair or the like from entering deep (toward the root) of the plurality of pile yarns forming the fluff portion. For this reason, it is possible to suppress the entanglement of hairs and the like in the fluff portion.

In the above-mentioned brush, it is preferable that the joint portion has a band shape extending in the longitudinal direction of the base cloth and is sewn to the base cloth.
According to this configuration, the joint portion can be easily and firmly joined to the base fabric.

A rotating brush that solves the above problems includes a rotating body and a brush having the above configuration attached to the rotating body. It is preferable that the brush is attached to the rotating body so that the fluff portion is arranged at a position closer to the rotating body in the rotating direction than the adjacent member.

According to this configuration, it is possible to suppress the tangling of hairs and the like on the fluff portion by the adjacent member while allowing the fluff portion to perform the function of a brush, which is a function of scraping off dirt such as hair and dust from the surface to be cleaned. .

A rotating brush that solves the above problems is a rotating brush that is rotatably housed in the head of a vacuum cleaner, and includes a rotating body and a brush attached to the rotating body, the brush comprising warp threads and A belt-shaped base fabric woven with weft yarns, and a belt-shaped fluff portion made of a plurality of pile threads woven into the base fabric so as to stand on a surface that is one side surface of the base fabric. and an adjoining member arranged adjacent to the fluff portion, the adjoining member comprising a band-shaped portion superimposed on the fluff portion, and an attachment portion attached to the rotating body. is the gist.

According to this configuration, the adjoining member has the attaching portion attached to the rotating body in a state in which the belt-like portion is overlapped with the fluff portion. For this reason, when hair or the like is wound around the fluff portion, the belt-like portion prevents the hair or the like from entering deep (toward the root) of the plurality of pile yarns forming the fluff portion. For this reason, it is possible to suppress the entanglement of hairs and the like in the fluff portion.

According to the present invention, it is possible to suppress tangling of hairs and the like in the fluff portion.

BRIEF DESCRIPTION OF THE DRAWINGS The plane cross-sectional schematic diagram which shows the head of the vacuum cleaner of one Embodiment. FIG. 2 is a schematic side cross-sectional view showing how the head of the vacuum cleaner is used. FIG. 4 is a schematic perspective view showing a rotating brush housed in the head; FIG. 4 is an enlarged side view of the rotating brush of FIG. 3; FIG. 5 is an enlarged view of a main portion of FIG. 4; The schematic perspective view which shows a part of brush which comprises a rotating brush. FIG. 2 is a schematic side cross-sectional view of the pile fabric that constitutes the brush. FIG. 2 is a schematic front cross-sectional view of a pile fabric that constitutes the brush. The schematic perspective view which shows the rotating brush of the example of a change. FIG. 10 is an enlarged side view of a main portion of the rotating brush of FIG. 9; The schematic perspective view which shows the rotating brush of another example of a change. FIG. 12 is an enlarged side view of a main portion of the rotating brush of FIG. 11;

An embodiment of the rotating brush will be described below with reference to the drawings.
As shown in FIGS. 1 and 2, a vacuum cleaner head 11 for sucking dust such as hair and dust on a floor surface F, which is an example of a surface to be cleaned, includes a case 12 which is substantially T-shaped when viewed from the bottom. I have. One end of a connection pipe 13 is rotatably connected to the rear end of the case 12, and the other end of the connection pipe 13 is connected to the main body (not shown) of the vacuum cleaner. At a position near the front end of the bottom wall of the case 12, a rectangular suction port 14 elongated in the left-right direction is formed so as to pass through 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 . An air suction port 16 is formed in the central portion of the rear wall forming the partition plate 15 so as to pass through the rear wall. A motor bearing 17 is provided on the left inner surface of the case 12 . The motor bearing 17 rotatably supports the tip of a motor shaft 19 extending from a motor 18 provided behind the partition plate 15 inside the case 12 .

Rotation supports 20 are provided on the left and right side walls of the partition plate 15, respectively. Both rotary supports 20 are rotatably supported by bearings 21 provided on both left and right inner surfaces of the case 12 . Inside the partition plate 15, a rotating brush 22 having a rotation axis extending in the left-right direction is accommodated. Both ends of the rotating brush 22 are supported by both rotating supports 20, respectively.

An endless belt 23 is wound around the left rotary support 20 and the pulley 19a attached to the motor shaft 19. As shown in FIG. Therefore, when the motor 18 is driven, its rotational driving force is transmitted to the rotating brush 22 via the motor shaft 19, the pulley 19a, the belt 23, and the rotating support 20 on the left side. As a result, the rotating brush 22 is rotationally driven in the counterclockwise direction (the direction indicated by the arrow in FIG. 2) when viewed from the left side.

Next, the configuration of the rotating brush 22 will be described in detail.
As shown in FIGS. 3 , 4 and 5 , the rotating brush 22 includes a cylindrical rotating body 31 and a plurality of (two in this example) brushes 32 attached to the rotating body 31 . A plurality (two in this example) of grooves 33 extending from one end to the other end are formed in the peripheral wall of the rotating body 31 at regular intervals in the circumferential direction.

Each groove 33 spirally extends from one end of the rotating body 31 to the other end so as to be displaced by 180°. The brushes 32 are attached to the rotor 31 by slidingly inserting the brushes 32 into the grooves 33 from the ends of the grooves 33 . In each groove 33, the width of the outer portion 34 in the radial direction of the rotor 31 is smaller than the width of the inner portion 35. As shown in FIG. That is, each groove 33 has a substantially T-shape when viewed in cross section.

Next, the configuration of the brush 32 will be described in detail.
As shown in FIGS. 6, 7 and 8, the brush 32 includes a pile fabric 36 and a flexible L-shaped plate-shaped adjoining member 37 joined to the pile fabric 36 . The pile fabric 36 includes a belt-shaped base fabric 38 made of a fabric woven with warp yarns 38a and weft yarns 38b, and a base fabric 38 so as to stand on one surface of the base fabric 38. and a band-like fluff portion 40 made of a plurality of substantially U-shaped pile yarns 39 woven into the fabric. The pile yarn 39 is composed of, for example, multifilament yarn.

A coating layer 41 made of synthetic resin is formed on the back surface of the base cloth 38 , which is the surface opposite to the fluff portion 40 side (front surface side). The coating layer 41 firmly bonds the roots of the plurality of pile threads 39 forming the fluff portion 40 and the base fabric 38 . The base fabric 38 has, on its surface, a brush region 42 where the fluffed portion 40 is formed and a non-brush region 43 where the fluffed portion 40 is not formed.

That is, the brush area 42 is an area on the surface of the base cloth 38 in which the pile yarns 39 are woven, and the non-brush area 43 is an area on the surface of the base cloth 38 in which the pile yarns 39 are not woven. A brush region 42 is formed so as to extend over the entire longitudinal direction X of the base fabric 38 at a central portion in the width direction Y orthogonal to the longitudinal direction X on the surface of the base fabric 38 . Non-brush regions 43 are formed on both sides of the surface of the base cloth 38 across the brush region 42 in the width direction Y so as to extend over the entire longitudinal direction X of the base cloth 38 .

An adjoining member 37 is provided adjacent to the fluff portion 40 of the brush area 42 in the non-brush area 43 on one side of the surface of the base cloth 38 . The adjacent member 37 is joined to a band-shaped portion 44 overlapping the fluff portion 40 in the width direction Y and extending in the longitudinal direction X of the base cloth 38 and a non-brush region 43 on one side of the surface of the base cloth 38 in a state of being overlapped. and a joint portion 45 to be connected.

The joint portion 45 has a band-like shape extending over the entire longitudinal direction X of the base cloth 38 and is joined to the base cloth 38 by sewing with a sewing thread 46 . In addition, in this embodiment, the height of the fluff portion 40 from the surface of the base cloth 38 and the height of the belt-like portion 44 from the surface of the base cloth 38 are the same.

For the warp yarns 38a and the weft yarns 38b that make up the base fabric 38, for example, polyester yarns are used. The warp threads 38a and the weft threads 38b are not limited to polyester threads, and polyethylene threads, polyamide threads, polypropylene threads, acrylic resin threads, urethane resin threads, etc. may be used. .

The pile yarns 39 forming the fluff portion 40 are preferably made of polyamide yarns which are excellent in abrasion resistance and resilience, which are optimum for this application. The pile yarns 39 are not limited to polyamide yarns, and may be polyester yarns, polyethylene yarns, polypropylene yarns, acrylic resin yarns, or urethane resin yarns. Adjacent member 37 is preferably made of rubber. The adjacent member 37 is not limited to rubber, and may be made of elastomer, non-woven fabric, or the like.

Then, as shown in FIGS. 3, 5 and 6, the brushes 32 are attached to the rotor 31 by sliding the brushes 32 into the grooves 33 of the rotor 31 from the ends of the grooves 33 . At this time, the base cloth 38 , the joint portion 45 , a small portion of the base end portion of the strip portion 44 and a small portion of the base end portion of the fluff portion 40 of the brush 32 are inserted into the inner portion 35 of each groove 33 . be. Further, at this time, most of the base end portions of the belt-shaped portions 44 and the fluff portions 40 of the brush 32 are inserted into the outer portions 34 of the grooves 33, and the portions from the center portion to the tip side extend from the grooves 33 to the outside. protrude.

The brush 32 is attached to each groove 33 of the rotating body 31 so that the fluff portion 40 is positioned closer to the rotation direction K of the rotating body 31 than the adjacent member 37 is.
Next, operation of the rotating brush 22 will be described.

When using the vacuum cleaner, first, the head 11 is placed on the floor surface F as shown in FIG. As a result, the tip of the brush 32 is brought into contact with 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 connecting pipe 13 to the body of the vacuum cleaner (not shown). sucked inside.

At this time, the rotating brush 22 is rotated in the counterclockwise direction in FIG. 22 brush 32 fluff portion 40 is in contact with the floor surface F. Then, dirt such as hair and dust on the floor surface F is scraped off by the fluff portion 40 of the brush 32 and sucked together with the air into the body portion (not shown) of the vacuum cleaner.

At this time, hair on the floor surface F (particularly, head hair, pet hair, etc.) may wind around the rotating brush 22 . However, since such hairs are blocked by the band-shaped portion 44 arranged so as to overlap the fluff portion 40, it is difficult for them to enter deep (near the root) between the pile yarns 39 in the fluff portion 40.例文帳に追加

Therefore, the use of the rotating brush 22 suppresses the tangling of the fluff portion 40 (brush 32), and even if the fluff portion 40 (brush 32) is entangled with hair, it can be easily removed. In other words, the belt-like portion 44 functions as a hair entanglement suppressing member that suppresses entanglement of the fluff portion 40 with hair or the like.

Further, since the fluff portion 40 of the brush 32 is arranged at a position closer to the rotating direction K side of the rotating body 31 than the belt-like portion 44 (adjacent member 37), the fluff is removed before the belt-like portion 44 when the rotating brush 22 rotates. The part 40 contacts the floor surface F. Therefore, while the fluff portion 40 exerts the function of the brush 32 to scrape off dirt such as hair and dust from the floor surface F, the band-like portion 44 prevents the fluff portion 40 from being entangled with hair.

According to the embodiment described in detail above, the following effects are exhibited.
(1) The brush 32 is attached to a rotating body 31 that is rotatably housed in the head 11 of the vacuum cleaner. The brush 32 consists of a belt-like base cloth 38 made by weaving warp yarns 38a and weft yarns 38b, and band-like fluff made of a plurality of pile yarns 39 woven into the base cloth 38 so as to stand on the surface of the base cloth 38. and an adjacent member 37 provided on the surface of the base fabric 38 adjacent to the fluffed portion 40 . The adjacent member 37 includes a belt-like portion 44 extending in the longitudinal direction X of the base cloth 38 while overlapping the fluff portion 40 , and a joining portion 45 joined to the base cloth 38 while being overlapped.

According to this configuration, the adjoining member 37 is joined to the base cloth 38 at the joint portion 45 in a state in which the belt-like portion 44 is overlapped with the fluff portion 40 and the joint portion 45 is overlapped with the base cloth 38 . Therefore, when hair or the like is wound around the fluff portion 40, the belt-like portion 44 can prevent the hair or the like from entering deep (toward the root) of the plurality of pile yarns 39 forming the fluff portion 40.例文帳に追加For this reason, it is possible to suppress the entanglement of the fluff portion 40 with hair or the like.

(2) In the brush 32 , the joining portion 45 has a band-like shape extending in the longitudinal direction X of the base cloth 38 and is sewn to the base cloth 38 .
With this configuration, the joint portion 45 (adjacent member 37 ) can be easily and firmly joined to the base fabric 38 .

(3) The rotating brush 22 includes a rotating body 31 and a brush 32 attached to the rotating body 31. The rotating body 31 is rotated while the brush 32 is brought into contact with the floor surface F for use. The brush 32 is attached to the rotating body 31 so that the fluff portion 40 is arranged at a position on the rotating direction K side of the rotating body 31 relative to the adjacent member 37 .

According to this configuration, while the fluff portion 40 exhibits the function of the brush 32 for scraping off dust such as hair and dust from the floor surface F, the fluff portion 40 is entangled by the adjacent member 37. can be suppressed.

(Change example)
The above embodiment can be implemented with the following modifications. Moreover, the above embodiments and the following modified examples can be implemented in combination with each other within a technically consistent range.

- You may change the rotating brush 22 to the rotating brush 50 shown in FIG.9 and FIG.10. The rotating brush 50 includes a cylindrical rotating body 51 and a plurality of (two in this example) brushes 52 attached to the rotating body 51 . The brush 52 includes a pile fabric 36 and an adjacent member 53 arranged adjacent to the fluff portion 40 of the pile fabric 36 . Adjacent member 53 is not joined to pile fabric 36 . The adjacent member 53 includes a band-shaped portion 55 that overlaps the fluff portion 40 and an L-shaped plate-shaped attachment portion 56 that is attached to the rotating body 51 .

A plurality of (two in this example) brush mounting portions 54 extending from one end to the other end are formed on the inner surface of the peripheral wall of the rotating body 51 so as to be equally spaced in the circumferential direction. Each brush mounting portion 54 spirally extends from one end of the rotating body 51 to the other end so as to be displaced by 180°. Each brush mounting portion 54 is positioned radially outward of the rotating body 51 from the first groove 57 having a T-shaped cross section into which the base cloth 38 side of the pile fabric 36 is inserted and mounted. and a second groove 58 into which the mounting portion 56 of the adjacent member 53 is inserted and mounted. The pile fabric 36 is slid into the first groove 57 from the end and the mounting portion 56 of the adjacent member 53 is slid into the second groove 58 from the end. A rotating brush 50 is formed.

With this configuration, the adjoining member 53 has the attachment portion 56 attached to the rotating body 51 in a state in which the belt-like portion 55 is overlapped with the fluff portion 40 . Therefore, when hair or the like is wound around the fluff portion 40 , the belt-like portion 55 prevents the hair or the like from entering deep (toward the root) of the plurality of pile yarns 39 forming the fluff portion 40 . Therefore, it is possible to suppress entanglement of the fluff portion 40 with hair or the like.

- You may change the rotating brush 22 to the rotating brush 60 shown in FIG.11 and FIG.12. The rotating brush 60 is obtained by providing each brush mounting portion 54 on the outer surface of the peripheral wall of the rotating body 51 in the above-described rotating brush 50 . With the rotating brush 60, more fluff portions 40 can be exposed than with the rotating brush 50 described above. Even with this configuration, it is possible to obtain the same effects as those of the rotating brush 50 described above.

- The joint portion 45 of the adjacent member 37 may intermittently extend in the longitudinal direction X of the base cloth 38 .
- The joint portion 45 of the adjacent member 37 may be joined to the base fabric 38 using an adhesive, a double-sided adhesive tape, or the like.

- The height of the fluff portion 40 from the surface of the base cloth 38 may be lower or higher than the height of the belt-like portion 44 from the surface of the base cloth 38 .
The brush 32 may be provided with adjacent members 37 on both non-brush areas 43 on the surface of the base cloth 38 so as to be adjacent to the fluff portions 40 of the brush areas 42 .

- The number of grooves 33 formed in the rotating body 31 may be changed as appropriate.

DESCRIPTION OF SYMBOLS 11... Head 12... Case 13... Connection pipe 14... Suction port 15... Partition plate 16... Air suction port 17... Motor bearing 18... Motor 19... Motor shaft 19a... Pulley 20... Rotary support 21... Bearing 22,50,60 ... Rotating brush 23 ... Belt 31, 51 ... Rotating body 32, 52 ... Brush 33 ... Groove 34 ... Outer portion 35 ... Inner portion 36 ... Pile fabric 37, 53 ... Adjacent member 38 ... Base fabric 38a ... Warp yarn 38b ... Weft yarn 39 Pile yarn 40 Fluff portion 41 Coating layer 42 Brush area 43 Non-brush area 44, 55 Belt-shaped portion 45 Joint portion 46 Sewing thread 54 Brush mounting portion 56 Mounting portion 57 First groove 58 ... Second groove F ... Floor surface as an example of the surface to be cleaned K ... Rotational direction X ... Longitudinal direction Y ... Width direction

Claims (4)

A brush attached to a rotating body that is rotatably housed in the head of a vacuum cleaner,
A strip-shaped base fabric made by weaving warp and weft threads, and a strip-shaped fluff section made of a plurality of pile threads woven into the base fabric so as to stand on the surface, which is one side of the base fabric. and a pile fabric having
an adjacent member provided adjacent to the fluff portion on the surface of the base fabric;
with
The adjacent member is
a band-shaped portion overlapping the fluff portion and extending in the longitudinal direction of the base fabric;
a joining portion that is joined while being superimposed on the base fabric;
A brush comprising: 2. The brush according to claim 1, wherein said joining portion is formed in a belt shape extending in the longitudinal direction of said base cloth and is sewn to said base cloth. A rotary brush comprising a rotating body and the brush according to claim 1 or claim 2 attached to said rotating body, wherein said rotating body is rotated while said brush is brought into contact with a surface to be cleaned. There is
The rotating brush, wherein the brush is attached to the rotating body so that the fluff portion is arranged at a position closer to the rotating body in the rotating direction than the adjacent member. A rotating brush rotatably housed within the head of a vacuum cleaner,
comprising a rotating body and a brush attached to the rotating body,
The brush
A strip-shaped base fabric made by weaving warp and weft threads, and a strip-shaped fluff section made of a plurality of pile threads woven into the base fabric so as to stand on the surface, which is one side of the base fabric. and a pile fabric having
an adjacent member arranged adjacent to the fluff portion;
with
The adjacent member is
a band-shaped portion superimposed on the fluff portion;
an attachment portion attached to the rotating body;
A rotating brush comprising:

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