Brushes and vacuum cleaners

Abstract

To provide a brush capable of preventing a bristle material from spreading radially to cause bristle strength to be weakened, and burrs and dust from gathering between bristle materials.SOLUTION: A brush 10 has: a brush table 1; a plurality of brush bundles 2a which is inserted into implanting holes 1b, folded into two, and extended with both end sides outward; a rod-shaped shaft 3 inserted into an axial hole 1a of the brush table 1; and almost disc-shaped flanges 4a, 4b which are connected to the shaft 3 and grip and fix the brush bundles 2a, 2b from both side surface sides of the brush table 1. The brush bundles 2a, 2b have binding parts 6 where both sides of the folding parts 5 folded into two are bound with elastic members 6a, 6b. When the brush 10 is seen from a flange 4a side in a plan view, the brush bundles 2a, 2a or 2a, 2b of the brush table 1 have, at least on an end side beyond at least the binding parts 6, intermittent parts 7 where adjacent brush bundles 2a, 2a or 2a, 2b do not contact each other and are formed into radial shapes.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a brush that can be attached to various rotating devices to perform tasks such as deburring and polishing, or to a cleaning machine or washing machine to perform cleaning or washing tasks, and to a vacuum cleaner equipped with this brush. [Background technology]

[0002] BACKGROUND ART Conventionally, rotary brushes such as wheel brushes and cup brushes attached to rotating devices for polishing workpieces, polishing floors, etc. have been known (Patent Document 1).

[0003] The rotating brush described in Patent Document 1 is formed by temporarily arranging small bundles of metal wire of a required length so that their centers abut against U-shaped notches that are radially arranged at predetermined intervals on the circumference of a disk, and then inserting a ring having an inner diameter approximately the same as the mean free outer diameter of the cylindrical body and an appropriate thickness from one side of the cylindrical body.The side of the ring abuts against the side of the disk, and each small bundle of metal wire is folded in half radially from the center to enclose the ring, forming a circumferential brush-like body, which is then integrated with a brush support member. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Utility Model Application Publication No. 59-150334 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the rotating brush described in Patent Document 1, the bristles at the tip of the brush spread out radially, and this radial spread continues to expand with use, causing the bristles to weaken and requiring frequent brush replacement.On the other hand, in the middle of the brush, the bristles are densely packed in a circular shape, making it easy for burrs and dust to accumulate between the bristles, requiring regular maintenance to remove them.

[0006] To solve the above-mentioned conventional problems, and an object of the present invention is to provide a brush which can prevent the bristles from spreading radially and weakening the bristles, and can also prevent burrs and dust from accumulating between the bristles. [Means for solving the problem]

[0007] In order to solve the above-mentioned problems of the prior art, the invention of claim 1 provides a brush having a brush base that is approximately disk-shaped and has an axial hole in the center and a plurality of bristle holes on the outer periphery, a plurality of brush bundles that are inserted into the bristle holes and bent in two with both ends extending outward, a rod-shaped shaft that is inserted into the axial hole of the brush base, and approximately disk-shaped flanges that are connected to the shaft and clamp and fix the brush bundles from both side surfaces of the brush base, wherein the brush bundles have binding parts that bind both sides of the folded part that is bent in two with an elastic member, a bulging portion having a widthwise length greater than a widthwise length of the binding portion when viewed in a plan view and a side view is formed between the folded portion and the binding portion, When the brush is viewed in a plane from the flange side, the brush base is characterized in that at least the tip side of the bundling portion is formed radially with intermittent portions where adjacent brush bundles are not in contact with each other.

[0008] In the invention of claim 1, the brush bundle has a bundling section, which prevents the bristles at the tip from spreading out radially and weakening the bristles. It also prevents burrs and dust from accumulating between the bristles in the middle. Furthermore, by having intermittent sections where adjacent brush bundles are not in contact with each other, it is possible to easily collect dust and other particles when used as a cleaning brush, and to increase the attacking force when used as a polishing / grinding brush.

[0009] In addition, in the invention of claim 1, The brush bundle has a brush head between the folded portion and the bundled portion. and side view When the binding portion is folded, a bulge having a widthwise length greater than the widthwise length of the binding portion is formed. So, When using the brush, the repulsive force of the brush bundle can be made strong regardless of whether the brush is rotated to the left or right, and the shape retention can be improved.

[0010] Claim 2 The invention relates to a brush having a brush base that is approximately disk-shaped and has a shaft hole provided in the center and a plurality of bristle holes provided on the outer periphery, a plurality of brush bundles that are inserted into the bristle holes and bent in two with both ends extending outward, a rod-shaped shaft that is inserted into the shaft hole of the brush base, and approximately disk-shaped flanges that are connected to the shaft and clamp and fix the brush bundles from both side surfaces of the brush base, wherein the brush bundles have binding parts that bind both sides of the folded part that is bent in two with an elastic member, Between the folded portion and the bundling portion, a bulging portion having a length in the width direction greater than that of the bundling portion in plan view is formed. The brush has a plurality of stacked brush bases, and when viewed from the flange side, the brush is formed in a position where adjacent brush bundles do not overlap each other in the axial direction of the shaft on the tip side of the bundling portion, and the bulging portions of adjacent brush bundles are formed in a position where they overlap each other in the axial direction of the shaft on the rear side of the bundling portion. This allows the brush bundles of adjacent brush stands to complement each other's gaps while maintaining the intermittent portions.

[0011] Claim 3 The invention of claim 1 or 2 In the invention, the elastic member is bound to the brush bundle so that it can slide in the longitudinal direction. This allows the bristle stiffness and bristles to be adjusted by changing the position of the elastic member. Furthermore, by adjusting the position of the elastic member when the bristles wear or break, the frequency of brush replacement can be reduced.

[0012] Claim 4 The invention is as follows: 3In any one of the above inventions, the brush has a generally cup-shaped cover body that abuts against a portion of the brush bundle from one flange side, and the brush bundle is formed by bending toward the other flange side. This allows the brush bundle to be bent and extended toward the other flange side with a simple structure. Furthermore, since the extension direction of the brush bundle can be appropriately designed depending on the shape of the cover body, the cover body can be made to fit the shape of the surface to be cleaned or polished.

[0013] Claim 5 The invention is 4 In the invention, the brushes are rotated or turned around the shaft and the brush bundles are brought into contact with the surface to be cleaned or polished, and the brush bundles of adjacent brush stands are of different lengths, and the shorter brush bundle contacts the predetermined contact point with the tip, while the longer brush bundle contacts with the side. This allows dust and other particles adhering to the surface to be cleaned to be scraped off and the scraped dust and other particles to be transported.

[0014] Claim 6 The invention of the vacuum cleaner is based on claims 1 to 5, which are located near the suction port and are rotatably supported by a driving body. 5 This makes it possible to provide a vacuum cleaner that can improve cleaning effectiveness because the brush bristles are strong, and that can reduce maintenance frequency because the brush bristles are less likely to fall out. [Effects of the Invention]

[0015] The brush invention of claim 1 can strengthen the bristles and prevent burrs and dust from accumulating between the bristles. When used as a cleaning brush, it can easily collect dust and other particles, and when used as a polishing / grinding brush, it can increase attacking power.

[0016] Also, Claim 1The invention of claim 1 can strengthen the repulsive force of the brush bundle regardless of whether the brush is rotated to the left or right during use, and can improve the shape retention. 2 The invention of claim 1 allows the brush bundles of adjacent brush stands to mutually complement the gaps while maintaining the intermittent portions. 3 The invention of (1) allows the bristle stiffness and spread of the bristles to be adjusted by the position of the elastic member, and also reduces the frequency of brush replacement.

[0017] Claim 4 The invention of claim 1 allows the brush bundle to be bent and extended toward the other flange with a simple structure, and the cover body can be made to fit the shape of the surface to be cleaned or polished. 5 The invention of claim 1 can scrape off dust adhering to the surface to be cleaned, and can also transport the scraped off dust. 6 The invention of the vacuum cleaner can provide a vacuum cleaner that can improve cleaning effectiveness and reduce the frequency of maintenance. [Brief explanation of the drawings]

[0018] [Figure 1] (a) is a perspective view showing a first embodiment of a brush according to the present invention; (b) is a plan view of the same; [Figure 2] FIG. 1 is an exploded perspective view showing a first embodiment of a brush according to the present invention; [Figure 3] FIG. 1 is a partially enlarged perspective view showing a first embodiment of a brush according to the present invention; [Figure 4] (a) A perspective view showing a second embodiment of the brush according to the present invention. (b) A side view of the brush according to the second embodiment with the tip of the brush bundle in contact with the floor surface. [Figure 5] 1A and 1B are a partially enlarged side view and a plan view showing a second embodiment of a brush according to the present invention; DETAILED DESCRIPTION OF THE INVENTION

[0019] Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the present invention is not limited to these embodiments. Fig. 1(a) is a perspective view showing a first embodiment of a brush according to the present invention, and Fig. 1(b) is a plan view of the same. Fig. 2 is an exploded perspective view showing the first embodiment of a brush according to the present invention, and Fig. 3 is an enlarged perspective view of the same part. The first embodiment of a brush according to the present invention will be described below using these figures.

[0020] The brush 10 of the first embodiment is approximately disk-shaped and comprises a brush base 1 having an axial hole 1a in the center and multiple bristle holes 1b, 1b... on the outer periphery, multiple brush bundles 2a, 2b... that are inserted into the bristle hole 1b and bent in two with both ends extending outward, a rod-shaped shaft 3 inserted into the axial hole 1a of the brush base 1, and approximately disk-shaped flanges 4a, 4b connected to the shaft 3 and clamping and fixing the brush bundles 2a, 2b on both side sides of the brush base 1.

[0021] Furthermore, the brush bundles 2a, 2b have a bundling portion 6 formed by bundling both sides of the folded portion 5 bent in two with elastic members 6a, 6b, and when the brush 10 is viewed in plan from the flange 4a side, the brush bundles 2a, 2a or 2a, 2b of the brush base 1 are formed radially with intermittent portions 7 where adjacent brush bundles 2a, 2a or 2a, 2b are not in contact with each other, at least on the tip side of the bundling portion 6. In the brush 10 of the first embodiment, the brush bundles 2a, 2b are shown as being bent in two at the center, but this is not limiting, and a step can be formed at the tip side of the brush bundle by bending the brush bundles at a position shifted from the center, and this is also included in the present invention.

[0022] In the brush 10 of the first embodiment configured as described above, the brush bundles 2a, 2b have the bundling portion 6, which prevents the bristles at the tips from spreading out radially and weakening the bristles. It also prevents burrs and dust from accumulating between the bristles in the middle. Furthermore, the brush bundles 2a, 2a or 2a, 2b have the intermittent portions 7 where adjacent brush bundles 2a, 2a or 2a, 2b are not in contact with each other. This makes it easier to scrape up dust and other particles when used as a cleaning brush, and increases the attacking force when used as a polishing / grinding brush.

[0023] As for the material of the brush bundle, nylon bristles are suitable when used as a cleaning brush for a vacuum cleaner, etc., while nylon bristles containing metal wire or abrasive grains are suitable when used as a polishing or grinding brush. Furthermore, cylindrical heat-shrinkable tubing can be used for the elastic member 6a that constitutes the bundling part 6. While the bundling part 6 is positioned equidistant from the center of the shaft 3 in Figures 1 and 2, this is not a limitation. Changing the position of the bundling part 6 can change the stiffness of the base end and the usable range of the brush bundles 2a and 2b.

[0024] Furthermore, the brush bundles 2a, 2b have bulged portions 8 formed between the folded portion 5 and the bundling portion 6, which have a widthwise length B greater than the widthwise length A of the bundling portion 6 in plan view. This allows the repulsive force of the brush bundles 2a, 2b to be strengthened and the shape retention ability to be increased regardless of whether the brush 10 is rotated to the left or right during use. Furthermore, when viewed from the side, the bulged portions 8 also have a widthwise length greater than the widthwise length of the bundling portion 6. This increases the repulsive force and shape retention ability in all directions.

[0025] The brush 10 has multiple stacked brush bases 1, 1, and when the brush 10 is viewed in plan from the flange 4a side, the brush bundles 2a, 2b of adjacent brush bases are positioned so that they do not overlap in the axial direction of the shaft 3. This allows the brush bundles 2a, 2b of adjacent brush bases 1, 1 to complement each other's gaps while maintaining the intermittent portion 7. The length of the brush bundles is not limited to two types, but may be three or more types. Furthermore, the number of stacked brush bases 1 is not limited to two layers, but may be three or more layers. Furthermore, the length of the brush bundles 2a, 2b does not need to be different for each brush base 1.

[0026] The elastic member 6a can also be attached to the brush bundles 2a, 2b so that it can slide along the length of the brush bundles. This allows the bristle stiffness and spread of the bristles to be adjusted by changing the position of the elastic member 6a. Furthermore, by adjusting the position of the elastic member 6a when the bristles wear or break, the frequency with which the brush 10 needs to be replaced can be reduced.

[0027] Fig. 4(a) is a perspective view showing a second embodiment of the brush according to the present invention, and Fig. 4(b) is a side view showing the tip of the brush bundle of the second embodiment in contact with the floor surface. Fig. 5 is a partially enlarged side view and a plan view showing the second embodiment of the brush according to the present invention. The second embodiment of the brush according to the present invention will be described below using these figures.

[0028] In the brush 20 of the second embodiment, a portion of the inner surface of the approximately cup-shaped cover body 9 contacts a portion of the brush bundles 2a and 2b similar to the brush bundle shown in the first embodiment from one flange side, and the brush bundles 2a and 2b are bent toward the other flange side. This allows the brush bundles 2a and 2b to be bent and extended toward the other flange side with a simple structure. Furthermore, since the extension direction of the brush bundles 2a and 2b can be appropriately designed depending on the shape of the cover body 9, the cover body 9 can be created to match the shape of the surface to be cleaned or polished. While FIG. 4 shows the bundling portion 6 hidden inside the cover body 9, a configuration in which the bundling portion 6 is visible on the outside of the cover body 9 is also within the scope of the present invention.

[0029] The brush 20 of the second embodiment is rotated or turned around a shaft (not shown) and is used by bringing the brush bundles 2a and 2b into contact with the surface to be cleaned or polished. The brush bundles 2a and 2b of adjacent brush stands are different lengths, and the shorter brush bundle 2b abuts at a predetermined contact point with its tip, while the longer brush bundle 2a abuts with its side (see the x mark in Figure 5). This allows the shorter brush bundle 2b to scrape off dust and other particles adhering to the surface to be cleaned, and the longer brush bundle 2a to transport the dust and other particles scraped off.

[0030] When the brush according to the present invention is used as a cleaning brush, it can be installed in a vacuum cleaner (not shown). In this case, it is preferable to install the brush near the suction port of the vacuum cleaner so that the brush is rotatably supported by a driving body. [Industrial Applicability]

[0031] The brush according to the present invention can be attached to various rotating devices to perform deburring and polishing work, or attached to cleaning machines, washing machines, and vacuum cleaners to perform cleaning and washing work. [Explanation of symbols]

[0032] 1 brush stand 1a Shaft hole 1b Flock hole 2a, 2b brush bundle 3 shafts 4a, 4b flange 5 Folded section 6 Binding part 6a Elastic member 7 Intermittent section 8 Bulge 9 Cover body 10, 20 brushes

Claims

1. a brush base having a substantially disk shape and a shaft hole provided at the center and a plurality of bristle holes provided on the outer periphery; a plurality of brush bundles that are inserted into the bristle implantation holes and bent in two with both ends extending outward; A rod-shaped shaft inserted into the shaft hole of the brush base; a substantially disk-shaped flange connected to the shaft and clamping and fixing the brush bundle from both side surfaces of the brush base; The brush bundle has a bundling portion in which both sides of a folded portion bent in two are bound with an elastic member, and a bulging portion having a widthwise length greater than that of the bundling portion when viewed from above and from the side is formed between the folded portion and the bundling portion, When the brush is viewed from the flange side in plan view, the brush base has at least a portion on the tip side of the bundling portion where adjacent brush bundles are not in contact with each other, and is formed radially.

2. a brush base having a substantially disk shape and a shaft hole provided at the center and a plurality of bristle holes provided on the outer periphery; a plurality of brush bundles that are inserted into the bristle implantation holes and bent in two with both ends extending outward; A rod-shaped shaft inserted into the shaft hole of the brush base; a substantially disk-shaped flange connected to the shaft and clamping and fixing the brush bundle from both side surfaces of the brush base; The brush bundle has a bundling portion in which both sides of a folded portion bent in two are bound with an elastic member, and a bulging portion having a widthwise length greater than the widthwise length of the bundling portion in a plan view is formed between the folded portion and the bundling portion, The brush is characterized in that a plurality of brush bases are stacked, and when the brush is viewed from the flange side, the brush is formed in a position where adjacent brush bundles do not overlap each other in the axial direction of the shaft on the tip side of the bundling portion, and the brush is formed in a position where the bulging portions of adjacent brush bundles overlap each other in the axial direction of the shaft on the rear side of the bundling portion.

3. 3. The brush according to claim 1, wherein the elastic member is bound to the brush bundle so as to be slidable in the longitudinal direction of the brush bundle.

4. 4. The brush according to claim 1, wherein a substantially cup-shaped cover body is brought into contact with a part of the brush bundle from one flange side, and the brush bundle is formed by bending toward the other flange side.

5. 5. The brush according to claim 4, wherein the brush is rotated or turned about the shaft and the brush bundle is brought into contact with the surface to be cleaned or polished, and the brush bundles of adjacent brush stands have different lengths, and the shorter brush bundle contacts the predetermined contact point with the tip end, while the longer brush bundle contacts with the side face.

6. A vacuum cleaner comprising the brush according to any one of claims 1 to 5, which is located near a suction port and rotatably supported by a driving body.

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