JP2023104042A - Cleaning body and rotation cleaning body - Google Patents

Abstract

To provide a cleaning body and a rotation cleaning body capable of suppressing noise when coming into contact with a body to be cleaned, and suppressing winding of a fibrous object to be cleaned.SOLUTION: A cleaning body comprises a base 110 and a brush 120 on which nap is raised in an obliquely inclined state in a longitudinal direction of the base 110. The brush 120 is configured so that a weft formed of filament yarn of polyamide or polypropylene is woven in a zigzag state so as to be folded back in a deviated state in a longitudinal direction, and in the state that the weft is cut along a center part to thereby be inclined obliquely in the longitudinal direction and fixed to the base in an overlapped state in a thickness direction crossing the longitudinal direction.SELECTED DRAWING: Figure 5

Description

The present invention relates to cleaning bodies and rotating cleaning bodies.

a strip-shaped fluff body in which a plurality of brush threads are held in parallel by a holding thread; a strip-shaped body extending in the longitudinal direction of the fluff body and superimposed on the fluff body; and a substrate having a pair of clamping portions that are joined while clamping one end portion in the width direction of the strip and one end portion in the width direction of the strip (Patent Document 1).

A vacuum cleaner main body, a hose having a hand grip connected to the vacuum cleaner main body, an extension pipe detachably connected at one end to the hose, and a floor connecting portion at the tip of the extension pipe detachably connected. In a vacuum cleaner comprising a floor suction tool, the floor suction tool is provided with a rotating brush rotated by a motor, and a base material of a blade attached to the rotating brush has a plurality of rows of raised bristles with looped ends. There is also known a floor suction tool for an electric vacuum cleaner in which bristles are planted and adjacent loop-shaped raised bristles are planted in a zigzag pattern so that they partially overlap each other in the longitudinal direction of the rotating brush (Patent Document 2). .

Japanese Patent Application No. 2019-13728 Japanese Patent No. 5193574

SUMMARY OF THE INVENTION The present invention provides a cleaning body and a rotary cleaning body capable of suppressing noise when it comes into contact with an object to be cleaned and suppressing the winding of a fibrous object to be cleaned.

In order to solve the above problems, the cleaning body according to claim 1 comprises:
a base;
a brush that is raised obliquely in the longitudinal direction of the base,
It is characterized by

The invention according to claim 2 is the cleaning body according to claim 1,
The brush is fixed to the base so as to overlap in a thickness direction that intersects with the longitudinal direction.
It is characterized by

The invention according to claim 3 is the cleaning body according to claim 1 or 2,
The brush is slanted in the longitudinal direction by cutting along the central portion in a zigzag weaving state in which weft yarns composed of polyamide or polypropylene filament yarns are staggered and folded back in the longitudinal direction. ,
It is characterized by

The invention according to claim 4 is the cleaning body according to claim 3,
The brush is fixed to the base in a state in which the entire brush is inclined in the longitudinal direction starting from the base end where the weft is bent and curved,
It is characterized by

The invention according to claim 5 is the cleaning body according to claim 3 or 4,
The thickness of the filament yarn is 0.1 mm or more,
It is characterized by

The invention according to claim 6 is the cleaning body according to any one of claims 3 to 5,
the weft yarns comprise a conductive material;
It is characterized by

The invention according to claim 7 is the cleaning body according to any one of claims 1 to 6,
The base end of the brush is fixed by being held by the base and sewn to the base in the longitudinal direction,
It is characterized by

The invention according to claim 8 is the cleaning body according to any one of claims 1 to 6,
A base end portion of the brush is woven with a heat-sealing thread in the longitudinal direction, and is sandwiched between and heat-sealed to the base.
It is characterized by

The invention according to claim 9 is the cleaning body according to claim 8,
The base end of the brush is pushed out together with the base and sandwiched by the base,
It is characterized by

In order to solve the above problems, the rotary cleaning body according to claim 10 is provided with:
a rotating body having grooves formed on its outer peripheral surface;
and the cleaning body according to any one of claims 1 to 9, wherein the base is fitted in the groove and attached.
It is characterized by

ADVANTAGE OF THE INVENTION According to invention of Claim 1, while suppressing the noise at the time of contacting to-be-cleaned body, winding of a fiber-like to-be-cleaned material can be suppressed.

According to the second aspect of the invention, the dust scraping force can be increased.

According to the third aspect of the invention, it is possible to effectively suppress entry of the fibrous material to be cleaned into the brush.

According to the fourth aspect of the invention, the inclination can be stably maintained as compared with the case where the portion exposed from the base is inclined by post-processing.

According to the fifth aspect of the invention, it is possible to improve the scraping force of the object to be cleaned.

According to the sixth aspect of the invention, it is possible to suppress adhesion of dust scraped by the brush to the brush.

According to the seventh aspect of the invention, it is possible to suppress the thread from coming off.

According to the eighth aspect of the invention, the brush can be easily inclined.

According to the ninth aspect of the invention, the base end portion of the brush can be easily fixed to the base.

According to the tenth aspect of the invention, the function of the cleaning body can be exerted on the body to be cleaned.

It is a bottom schematic diagram showing the cleaner head of the vacuum cleaner to which the rotating cleaning body according to the present embodiment is attached. It is a cross-sectional schematic diagram which shows the use condition of the cleaner head of a vacuum cleaner. It is a perspective view which shows a rotation cleaning body. It is an enlarged cross-sectional schematic diagram of a rotary cleaning body. (a) is a perspective view showing a partial cross section of the cleaning body, and (b) is a side view showing a partial side surface of the cleaning body. It is a plane schematic diagram which shows the manufacturing process of the brush of a cleaning body.

Next, the present invention will be described in more detail by presenting embodiments and specific examples with reference to the drawings, but the present invention is not limited to these embodiments and specific examples.
In addition, in the explanation using the drawings below, it should be noted that the drawings are schematic, and the ratio of each dimension is different from the actual one. Illustrations other than members are omitted as appropriate.

(1) Vacuum Cleaner Suction Head FIG. 1 is a schematic bottom view showing a vacuum cleaner head 10 of a vacuum cleaner to which a rotating cleaning body 20 according to the present embodiment is attached, and FIG. 3 is a perspective view showing the rotary cleaning body 20, and FIG. 4 is an enlarged sectional schematic view of the rotary cleaning body 20. FIG.
Hereinafter, the cleaner head and the rotating cleaning body will be described with reference to the drawings.

(1.1) Overall Configuration of Suction Head As shown in FIGS. 1 and 2, a vacuum cleaner head 10 of a vacuum cleaner for sucking dust such as hair and dust on the floor surface FL has an overall shape of approximately It has a T-shaped case 11 and a connecting pipe 12 rotatably connected to the rear end of the case 11 . A rectangular suction port 13 elongated in the left-right direction is formed at a position near the front end of the bottom wall of the case 11 .

A rectangular frame-shaped partition plate 14 is erected on the inner bottom surface of the case 11 so as to surround the suction port 13, and a rear wall 14a forming the partition plate 14 has a rear wall 14a at its central portion that penetrates the rear wall 14a. An air suction port 15 is formed. A motor bearing 16 is provided on the left inner surface of the case 11 , and the motor bearing 16 rotatably supports the tip of a motor shaft 17 a extending from a motor 17 provided behind the partition plate 14 inside the case 11 .

A rotation support 18 is provided on each of the left and right side walls 14b of the partition plate 14, and the rotation support 18 is rotatably supported by bearings 19 provided on both the left and right inner surfaces of the case 11, respectively. Inside the partition plate 14, a rotary cleaning body 20 having a rotation axis c1 extending in the horizontal direction is accommodated, and both ends of the rotary cleaning body 20 are supported by rotary supports 18, respectively.

A timing belt TB is wound around the left rotary support 18 and a pulley 17b attached to the motor shaft 17a. It is transmitted to the rotary cleaning body 20 via the timing belt TB and the left rotary support 18 .

(1.2) Configuration of Rotating Cleaning Body As shown in FIGS. 3 and 4, the rotating cleaning body 20 includes a rotating body 21 and four cleaning bodies 100 provided in the longitudinal direction (axial direction) of the rotating body 21. and
The rotating body 21 is a substantially round bar-shaped shaft having grooves 22 formed at equal intervals around the periphery. It is formed to extend in the longitudinal direction to the end face.

The cleaning body 100 is attached by fitting its base 110 into the concave groove portion 22 from one end face side of the rotating body 21 . In the rotating cleaning body 20, the brush 120 of the cleaning body 100 comes into contact with the floor FL, which is the body to be cleaned, as the rotating body 21 rotates (indicated by arrow R in the figure) to scrape fibrous dirt and dust. The brush 120 exhibits a picking function and suppresses an increase in noise when the brush 120 comes into contact with the floor surface FL.

(2) Cleaning Body FIG. 5(a) is a perspective view showing a partial cross section of the cleaning body 100, (b) is a side view showing a partial side surface of the cleaning body 100, and FIG. It is a plane schematic diagram which shows a process. Hereinafter, the configuration and manufacturing method of the cleaning element 100 will be described with reference to the drawings.

As shown in FIG. 5, the cleaning body 100 includes a base 110 and a brush 120 that is raised and slanted in the longitudinal direction (X direction) of the base 110 . The brushes 120 are fixed to the base 110 so as to overlap in the thickness direction intersecting the longitudinal direction.

(2.1) Base Base The base 110 is made of synthetic resin, and has a locking portion 111 having a rectangular cross section for fitting into and fixing to the concave groove portion 22 (see FIG. 4) of the rotating body 21, and a locking portion 111. A pair of L-shaped plate-shaped holding portions 112 formed on the portion 111 are provided.
A pair of holding portions 112 are erected on the locking portion 111 so as to face each other in the width direction of the locking portion 111 .
Distal end portions 112 a of the pair of holding portions 112 are bent at right angles to the proximal end portion and extend parallel to the locking portion 111 . Base end portions 112 b of the pair of holding portions 112 are sewn to the brush 120 with one sewing thread 113 while holding one end portion of the brush 120 in the width direction Y. As shown in FIG.

The base 110 is formed by extruding thermoplastic synthetic resin. Examples of thermoplastic synthetic resins include flexible olefin elastomers having a durometer hardness of D40 to D50 as measured according to JIS K7215. Since the base 110 has flexibility, it can be flexibly bent, and as shown in FIG. It can be easily attached by inserting it into the groove portion 22 .

The locking portion 111 has a width in a direction crossing (perpendicular to) the longitudinal direction of the base 110 slightly larger than the width of the opening 22 a of the recessed groove portion 22 of the rotor 21 . When the cleaning body 100 is attached to the rotating body 21, the base 110 is inserted into each recessed groove 22 from one end of the rotating body 21 so that the brush 120 protrudes outward from the opening 22a of the recessed groove 22. By inserting while sliding, the base 110 is inserted in a helically twisted state along each concave groove 22, and the attachment of the cleaning body 100 to the rotating body 21 is completed.

(2.2) Brush As shown in FIG. 5, in the brush 120, filament threads made of synthetic resin are slanted in the longitudinal direction (X direction) of the base 110 and raised. The inclination angle Θ is 30 degrees to 60 degrees, so that the scraped fibrous material to be cleaned is suppressed from winding around the brush 120, and the material to be cleaned is helically twisted. You can move along the direction.

As shown in FIG. 6, the brushes 120 are made of, for example, polyamide or polypropylene filament yarns woven in a zigzag pattern such that weft yarns 121 are staggered in the longitudinal direction and folded back. After weaving each (two in this embodiment) synthetic resin warp yarns 122, the central portion is cut along the arrows in FIG. be done.

That is, the brush 120 extends the base ends (on the curved portion 123 side) of the plurality of U-shaped wefts 121 arranged obliquely in a straight line parallel to each other. It is formed by being held together by warp threads (holding threads) 122 of the book. In addition, as shown in FIG. 5 , in the cleaning body 100 , the two holding threads 122 are arranged between the pair of holding portions 112 .
The holding thread 122 is made of a highly durable and flexible fiber. Fibers satisfying these conditions include rayon fibers, cupra fibers, polyester fibers, polyamide fibers, acrylic fibers, and polypropylene fibers. The holding thread 122 in the present embodiment is made of polyester fiber, and partially contains hot-melt fiber that melts when heated.

The weft 121 forming the brush 120 preferably has a fiber diameter of 0.1 mm to 0.9 mm. In particular, by using polyamide or polypropylene filament yarn with a fiber diameter of 0.1 mm to 0.5 mm, the cleaning element 100 has a certain degree of flexibility and can suppress noise when it comes into contact with the object to be cleaned. can. In this case, by stacking a plurality of brushes 120 in the thickness direction that intersects the longitudinal direction and fixing them to the clamping portion 112 of the base 110, it is possible to reduce the gap as the cleaning body and increase the dust scraping force. can. Polyamide fibers with a fiber diameter of 0.3 mm are used for the wefts 121 in this embodiment. Polyamide fibers are suitable for use in the cleaning element 100 because of their excellent abrasion resistance and resilience.

The wefts 121 forming the brush 120 may include conductive fibers such as carbon fibers and synthetic resin fibers into which carbon is kneaded.
For example, when the brush 120 is used in the rotary cleaning body 20 for an electric vacuum cleaner, static electricity can be prevented from accumulating by combining conductive threads. Adhesion to the brush 120 is suppressed. As a result, for example, dust scraped or wiped off with the brush 120 can be easily released from the brush 120 when the vacuum cleaner sucks the dust.

The brush 120 is not limited to a knitted fabric in which the weft yarn 121 is woven diagonally and cut along the central portion. After knitting the vicinity of the portion 123 with a plurality of synthetic resin warp yarns 122 extending parallel to each other, the left and right sides are pulled diagonally in opposite directions, and the central portion is cut off to form a brush 120 obliquely inclined in the longitudinal direction. good too.
Also, although not shown, the woven fabric made of the warp 121A and the weft 122A may be shifted left and right to form the brush 120A obliquely slanted in the longitudinal direction.

(2.3) Formation of Cleaning Body When forming the cleaning body 100, first, the wefts 121 are woven in a zigzag pattern so as to be shifted in the longitudinal direction and folded back, and a plurality of wefts extending parallel to each other near the curved portions 123 on both sides are knitted. After knitting with the warp yarns 122, the central portion is cut to form the brush 120 obliquely inclined in the longitudinal direction.
After that, when the base end portion of the brush 120 on the holding thread 122 side in the width direction is inserted between the pair of holding portions 112 of the base 110 , the holding thread 122 of the brush 120 is held by the holding portions 112 .
In this state, for example, using an industrial sewing machine (not shown), the clamping portion 112 and the proximal end portion of the curved portion 123 of the brush 120 including the holding thread 122 are sewn together with the sewing thread 113, and the clamping portion is sewn together. 112 is joined to the brush 120 at the portion where the retaining thread 122 is located. As a result, the cleaning element 100 shown in FIG. 5 is obtained, and the inclination angle .theta. can be done.

As another method of forming the cleaning element 100, first, the brush 120 obliquely inclined in the longitudinal direction is formed by the same method as described above.
Then, the thermoplastic elastomer resin is directly put into the extruder, and is extruded through a mouthpiece provided in the extruder so that the brush 120 is applied to the clamping portion 112 of the base 110 in synchronization with the extrusion. The base end portion is supplied so as to be sandwiched and molded integrally with the base 110 .

The molding method by extrusion is not particularly limited, but as an example, it can be produced as follows.
First, a thermoplastic elastomer resin is melted by heating and kneading it in an extruder at, for example, 180°C to 230°C, passed through a filter, and then extruded in an extrusion die heated to 180°C to 230°C. A continuous base 110 is obtained by melt-extrusion through a slit-shaped T-shaped die discharge port and solidification by cooling.

If necessary, the primer material is continuously applied to the holding portion 112 of the continuous base 110 extruded from the T-shaped die outlet, and the base end portion of the brush 120 is supplied to apply a pressure roller or the like. The continuous cleaning body 100 is obtained by crimping and fixing the brush 120 to the base 110 . Then, the cleaning body 100 is obtained by cutting to a required length. By integrally extruding the base end of the brush 120 together with the base 110 in this manner, the base end of the brush 120 can be easily fixed to the base 110 .

(3) Operation and Effect of Rotating Cleaning Body When using the vacuum cleaner, as shown in FIG. While being rotationally driven, the air inside the partition plate 14 passes through the air suction port 15 and is sucked into the main body (not shown) of the vacuum cleaner via the connection pipe 12 (see arrow S in the drawing).

At this time, the rotating cleaning body 20 rotates counterclockwise in FIG. 2 (the direction indicated by the arrow R in FIG. 2) in conjunction with the rotational driving of the motor 17, and the cleaning body 100 of the rotating cleaning body 20 moves toward the floor surface FL. , the fibrous dirt and dust on the floor FL are scraped off by the cleaning body 100 and sucked into the main body (not shown) of the electric vacuum cleaner together with the air.

At this time, the rotary cleaning body 20 rotates in the direction of arrow R shown in FIG. 121 is also partially in contact.

When the floor surface FL is flooring, the brush 120 can scrape up dust on the flooring, as well as fibrous dust such as hair and lint. sucked into.

When the floor surface FL is a carpet or mat, the brush 120 can be used to scrape dust from the vicinity of the floor surface FL, and to entangle fibrous dust. At this time, some of the fibrous dust may wind around the rotary cleaning member 20 without being sucked into the air suction port 15, but the brush 120 is slanted and raised in the longitudinal direction (X direction). As a result, the entrained fibrous debris moves along the length of the brush 120 toward one end. The fibrous dust collected at the ends is easily separated from the brush 120 and can be easily removed.

DESCRIPTION OF SYMBOLS 10... Vacuum cleaner head 20... Rotating cleaning body 21... Rotating body, 22... Groove part 100... Cleaning body 110... Base, 111... Locking part, 112...・Sandwiching part 120... brush, 121... weft, 122... warp (holding thread)

Claims (10)

a base;
a brush that is raised obliquely in the longitudinal direction of the base,
A cleaning body characterized by: The brush is fixed to the base so as to overlap in a thickness direction that intersects with the longitudinal direction.
The cleaning body according to claim 1, characterized in that: The brush is slanted in the longitudinal direction by cutting along the central portion in a zigzag weaving state in which weft yarns composed of polyamide or polypropylene filament yarns are staggered and folded back in the longitudinal direction. ,
The cleaning body according to claim 1 or 2, characterized in that: The brush is fixed to the base in a state in which the entire brush is inclined in the longitudinal direction starting from the base end where the weft is bent and curved,
The cleaning body according to claim 3, characterized in that: The thickness of the filament yarn is 0.1 mm or more,
The cleaning body according to claim 3 or 4, characterized in that: the weft yarns comprise a conductive material;
The cleaning body according to any one of claims 3 to 5, characterized in that: The base end of the brush is fixed by being held by the base and sewn to the base in the longitudinal direction,
The cleaning body according to any one of claims 1 to 6, characterized in that: A base end portion of the brush is woven with a heat-sealing thread in the longitudinal direction, and is sandwiched between and heat-sealed to the base.
The cleaning body according to any one of claims 1 to 6, characterized in that: The base end of the brush is pushed out together with the base and sandwiched by the base,
The cleaning body according to claim 8, characterized in that: a rotating body having grooves formed on its outer peripheral surface;
and the cleaning body according to any one of claims 1 to 9, wherein the base is fitted in the groove and attached.
A rotating cleaning body characterized by:

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