BRUSH MATERIAL
A brush material includes a brush bristle material that is composed of a bundle of plural metal brush bristles each having a circular or polygonal section; and a covering layer that contains an abrasive and is provided on a surface of the brush bristle material.
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1. Field of the Invention
The present invention relates to a brush material that can be used for polishing the surface of a workpiece or for polishing and grinding it for burring.
2. Description of the Related Art
A conventionally known brush material that can be used for polishing the surface of a workpiece or for polishing and grinding it for burring is, for example, a brush material that includes as a core a plurality of synthetic fibers containing abrasive particles and as a covering a thin multifilament of synthetic fiber provided around the core (see JP-A SHO 63-318907).
However, in the case where the brush material including the covering of the thin multifilament of synthetic fiber is used for polishing the surface of a workpiece or for polishing and grinding it for burring, and used under severe conditions such as being brought into contact with the surface of the workpiece while being rotated at high speed, or being subjected to a strong pressing force, a burring effect or a polishing effect cannot be expected when a hard burr is formed on the surface or corner of the workpiece, and there is a need for improvement.
The present invention has been achieved to solve the above described problem, and has as an object to provide a brush material having wear resistance and durability so that a burring effect or a polishing effect can be expected even when a hard burr is formed on the surface or corner of a workpiece in the case where the brush material is used for polishing the surface of the workpiece or for polishing and grinding it for burring, and used under severe conditions such as being brought into contact with the surface of the workpiece while being rotated at high speed, or being subjected to a strong pressing force.
SUMMARY OF THE INVENTIONIn order to achieve the object, the invention provides, as the first aspect thereof, a brush material including: a brush bristle material that is composed of a bundle of plural metal brush bristles each having a circular or polygonal section; and a covering layer that contains an abrasive and is provided on a surface of the brush bristle material.
In the second aspect of the invention that includes the brush material of the first aspect, the covering layer contains as the abrasive at least one member selected from the group consisting of alumina, silicon carbide, cerium oxide and diamond.
In the third aspect of the invention that includes the brush material of the first aspect, each of the metal brush bristles has an abrasive layer formed by electrodepositing an abrasive on a surface of each metal brush bristle.
In the fourth aspect of the invention that includes the brush material of the second aspect, the covering layer contains as the abrasive plural members comprising 1% to 10% by weight of diamond and 90% to 99% by weight of other members.
In the fifth aspect of the invention that includes the brush material of the first aspect, the covering layer has a resin coated thereon, a resin coat wound thereon in a spiral shape or a pipe member of thin resin film mounted thereon.
In the sixth aspect of the invention that includes the brush material of the first aspect, the covering layer contains aromatic or deodorant powder.
According to the brush material of the present invention, the brush bristle material includes the covering layer provided on the surface of the resin brush bristle material composed of a bundle of plural brush bristles. Thus, the brush material has wear resistance and durability, and a burring effect or a polishing effect can be expected even when a hard burr is formed on the surface or corner of a workpiece in the case where the brush material is used under severe conditions such as being brought into contact with the surface of the workpiece while being rotated at high speed, or being subjected to a strong pressing force.
Now, embodiments of the present invention will be described with reference to the drawings. In the drawings, like reference numerals denote like components.
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The covering layer 14 is formed of a resin coat containing as the abrasive 13 at least one member selected from the group consisting of alumina, silicon carbide, cerium oxide and diamond. When the covering layer 14 contains as the abrasive 13 plural members, the plural members comprise 1 to 10% by weight of diamond and 90 to 99% by weight of other members.
The covering layer 14 may contain aromatic powder or deodorant powder together with the abrasive 13. The aromatic powder or deodorant powder contained in the covering layer 14 can provide an aromatic property or a deodorant property to the brush bristle material 12a during polishing of a workpiece.
Each of the metal brush bristles 12, 22 and 32 having circular or polygonal sections may have an abrasive layer 10a formed by electrodepositing an abrasive 10 on the surface of the metal brush bristle and firmly securing the abrasive 10 with one layer of metal skin.
The shown metal brush bristles 12, 22 and 32 are linear members. Besides, a twisted metal brush bristle 22c as shown in
When two or more metal brush bristles 12, 22 and 32 are bound to form a brush bristle material, the plurality of metal brush bristles 12 may be bound as they are to form a brush bristle material, or a plurality of (three in
The covering layer 14 can be formed by coating resin, but a covering layer 14a may be formed by winding a resin coat in a spiral shape as shown in
The present invention is not limited to the embodiments, but may be implemented in any manner without changing the configuration described in Claims. For example, three or four resin brush bristles are provided inside the covering layer in Embodiments 1 to 5, but other plural number of resin brush bristles may be provided.
Claims
1. A brush material comprising:
- a brush bristle material that is composed of a bundle of plural metal brush bristles each having a circular or polygonal section; and
- a covering layer that contains an abrasive and is provided on a surface of the brush bristle material.
2. The brush material according to claim 1, wherein the covering layer contains as the abrasive at least one member selected from the group consisting of alumina, silicon carbide, cerium oxide and diamond.
3. The brush material according to claim 1, wherein each of the metal brush bristles has an abrasive layer formed by electrodepositing an abrasive on a surface of each metal brush bristle.
4. The brush material according to claim 2, wherein the covering layer contains as the abrasive plural members comprising 1% to 10% by weight of diamond and 90% to 99% by weight of other members.
5. The brush material according to claim 1, wherein the covering layer has a resin coated thereon, a resin coat wound thereon in a spiral shape or a pipe member of thin resin film mounted thereon.
6. The brush material according to claim 1, wherein the covering layer contains aromatic or deodorant powder.
Type: Application
Filed: Oct 18, 2007
Publication Date: Apr 23, 2009
Applicants: (Chigasaki-shi), (Chigasaki-shi)
Inventors: Yuuichiro NIIZAKI (Chigasaki-shi), Tomoko Niizaki (Chigasaki-shi), Yunito Niizaki (Chigasaki-shi)
Application Number: 11/874,553
International Classification: A46D 1/00 (20060101);