JP3738203B2 - Twist brush - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a twisting brush that can easily polish an inner surface of a pipe or a hole having a very small diameter.
[0002]
[Prior art]
Generally, a twist brush is formed into a spiral shape by sandwiching a plurality of bundled bristles with a plurality of metal core wires and simultaneously twisting the plurality of core wires in this state. For example, the invention disclosed in “Torsion brush” described in Japanese Patent Application Laid-Open No. 7-246114 and “Method for removing burrs and its removal tool” described in Japanese Patent Application Laid-Open No. 7-285056 are typical.
[0003]
[Problems to be solved by the invention]
However, in this type of conventional twisting brush, since there are a plurality of core wires as the central axis, even if twisted, the diameter becomes the sum of the diameters of the minimum number, and the caliber Since it is impossible to penetrate through extremely small pipes and holes, it was not possible to reliably achieve this internal polishing.
[0004]
Therefore, conventionally, when polishing an extremely thin interior, only one brush bristle or only one polygonal bar-shaped metal wire is used and inserted into a pipe or hole to reciprocate or further end However, it was possible to carry out the machining operation by extending the round bar continuously and rotating the shaft, but there were many defective products for removing the flash, and an excellent product could not be obtained.
[0005]
Therefore, the present invention has been proposed in order to solve the above-mentioned drawbacks, problems, and disadvantages. By making the central axis of the twisting brush extremely thin, it is possible to remove the flash on the inner surface of a workpiece having a small diameter. The object is to make it possible to reliably and easily achieve the inner surface treatment.
[0006]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention forms a plurality of brush materials by forming, in a part of the tip end of a metallic wire rod, a slit material insertion space of a brush material that penetrates in the radial direction along the length direction. Is arranged so as to be orthogonal to the length direction of the wire, the central portion is mounted on the insertion space, and the slit-shaped insertion space on which the wire is mounted is spirally twisted, whereby the brush material is A twist brush characterized by being arranged in a spiral.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. First, the wire 2 forming the central axis of the twisted brush 1 according to the present invention is not particularly limited, but has a diameter of about 0.1 to 2 mm. A round bar, a triangular bar, a square bar or the like, and a metal wire such as stainless steel, iron, piano wire, copper, aluminum, or zinc drawing wire is used as the material.
[0008]
In the embodiment of FIG. 1, an insertion space portion 3 that penetrates in a radial direction at a part of the tip of the wire 2 is formed in a slit shape along the length direction with both ends closed (FIG. 1 ( a), a plurality of brush materials 4 are arranged in the insertion space 3 so as to be orthogonal to the length direction of the wire 2 and a central portion is mounted (see FIG. 1B).
[0009]
As the brush material 4, any one or a combination of synthetic resin wires, metal wires, biodegradable wires, plant fibers, animal fibers, and the like can be used.
[0010]
And as a synthetic resin wire, nylon, vinyl chloride, polypropylene, biodegradable plastic wire and the like can be exemplified, and as a metal wire, stainless steel, piano wire, iron wire, copper wire, etc., as plant fiber, Pakin, palm, etc., and pig hair, horse hair, eyelash, etc. are used as animal fibers, respectively.
[0011]
These brush materials 4 can also be used with abrasive grains mixed therein. Examples of the abrasive grains include metal powders such as stainless powder, gold powder, and titanium powder, diamond powder, ceramic powder, and inorganic powder. The material 4 is mixed.
[0012]
Now, as described above, a plurality of brush materials 4 are mounted in the insertion space 3 of the wire 2 and the wire 2 is twisted in a spiral shape so that the brush material 4 is arranged in a spiral shape (FIG. 1C). See) and the twisting brush 1 is constructed.
[0013]
Here, since there is only one wire 2 serving as the central axis of the twisting brush 1, the twisting brush 1 itself becomes extremely thin and can be easily inserted into a pipe or hole having a small diameter, so that deburring or polishing treatment can be performed. Etc. can be performed reliably and easily.
[0014]
What kind of material should be used as the brush material 4, whether to use a plurality of types, and in the case of a plurality of combinations thereof, the material of the workpiece to be processed such as deburring or polishing, It is determined according to the processing purpose. The determination of whether or not to mix abrasive grains into the brush material 4 and what kind of abrasive grains to use is the same.
[0016]
Although the present invention has been described based on the embodiments shown in the drawings, the present invention is not limited to the above-described embodiments, and may be implemented in any way as long as the configuration described in the claims is not changed. Can do.
[0017]
【The invention's effect】
In short, according to the present invention, there is only one wire holding the brush material, and an extremely thin shape can be manufactured according to the purpose of use. There are many excellent effects such that the polishing process can be achieved easily and reliably.
[Brief description of the drawings]
1A and 1B show an embodiment of the present invention, where FIG. 1A is a perspective view of a wire, FIG. 1B is a perspective view of a state where a brush material is inserted into an insertion space of the wire, and FIG. It is a perspective view of the state used as a brush.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Twist brush 2 Wire material 3 Insertion empty part 4 Brush material

Claims (4)

A part of the tip of the metallic wire rod is formed with a slit-like insertion portion of the brush material penetrating in the radial direction along the length direction, and a plurality of brush materials are orthogonal to the length direction of the wire rod. The brush material is arranged in a spiral shape by attaching the central portion to the insertion space portion and twisting the slit-like insertion space portion to which the wire is attached spirally. Torsion brush.   The twist brush according to claim 1, wherein both end portions of the insertion hollow portion are closed.   The twisted brush according to any one of claims 1 and 2, wherein the brush material is one or more of resin wires, metal wires, biodegradable wires, plant fibers, animal fibers, and the like.   The twisted brush according to claim 3, wherein abrasive grains are mixed in the brush material.

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