JP2003019673A - Torsion brush - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely and simply achieve removal of burr of the inner surface of a pipe or hole with a small bore diameter and inner surface polishing by thinning a central shaft of a torsion brush. SOLUTION: A penetrating void part 3 for brush raw material 4 is formed along the longitudinal direction in a metallic wire rod 2, a plurality of brush raw materials 4 are arranged intersecting perpendicularly to the longitudinal direction of the wire rod 2, and the central parts thereof are mounted in the penetrating void part. The penetrating void part 3 of the wire rod 2 is twisted spirally to arrange the brush raw materials 4 spirally. Both end parts of the penetrating void part 3 are closed, or one end of the penetrating void part 3 is opened to the tip of the wire rod 2. The wire rod 2 is a metal wire, the brush raw material is one or more selected from a resin line, metal wire, biodegradation line, vegetable fiber, animal fiber and the like, and polishing abrasive grains are mixed in the brush raw material 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a twisting brush capable of easily polishing an inner surface of a pipe or a hole having an extremely small diameter.

[0002]

2. Description of the Related Art Generally, a twisting brush is formed into a spiral shape by sandwiching a plurality of bundled brush bristles with a plurality of metal core wires, and simultaneously twisting the plurality of core wires in this state.
For example, the inventions disclosed in "Torsion brush" described in Japanese Patent Laid-Open No. 7-246114 and "Method for removing flash and its removal tool" described in Japanese Patent Laid-Open No. 7-285056 are typical examples.

[0003]

However, in the conventional twist brush of this kind, since there are a plurality of core wires which are the central axes, even if twist-molded, the sum of the diameters of at least the number of core wires is required. However, since it is impossible to penetrate a pipe or a hole having an extremely small diameter, it is impossible to reliably achieve the polishing of the inner surface.

Therefore, conventionally, when polishing an extremely thin interior, only one brush bristles or only one polygonal rod-shaped metal wire is used and inserted into a pipe or a hole to reciprocate, or Further, a round bar was extended and continuous at the end so that the shaft could be rotated for processing, but there were many defective products for removing burrs, and excellent products could not be obtained.

Therefore, the present invention has been proposed in order to solve the above-mentioned drawbacks, problems, and inconveniences. By making the central axis of the twisting brush extremely thin, the burr on the inner surface of the work having a small diameter can be removed. In addition to being able to do so, the purpose is to be able to achieve internal surface treatment reliably and easily.

[0006]

In order to achieve the above-mentioned object, the present invention provides a metallic wire material having an insertion space for a brush material formed in the longitudinal direction thereof, and a plurality of brush materials having a length of the wire material. Characterized in that the brush material is arranged in a spiral shape by arranging so as to be orthogonal to the vertical direction, mounting the central portion on the insertion hollow portion, and twisting the insertion hollow portion of the wire into a spiral shape. It is a twisting brush.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. First, a torsion brush 1 according to the present invention.
The wire rod 2 forming the central axis of the is not particularly limited, but is a round bar having a diameter of about 0.1 to 2 mm, a square rod shape such as a triangle or a square, and the material thereof is stainless steel, iron, A metal wire such as a piano wire, copper, aluminum, or a zinc-drawn wire is used.

In the embodiment shown in FIG. 1, an insertion hollow portion 3 penetrating in a radial direction at a part of the tip of the wire rod 2 is formed in a slit shape along the length direction with both ends closed ( Figure 1
(See (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 the central portion is mounted (see FIG. 1 (b)).

As the brush material 4, a synthetic resin wire,
Any one kind or a mixture of two or more kinds of metal wire, biodegradable wire, plant fiber, animal fiber and the like can be used.

As the synthetic resin wire, nylon,
Polyvinyl chloride, polypropylene, biodegradable plastic wire and the like can be exemplified, and as the metal wire, stainless steel, piano wire, iron wire, copper wire and the like, as plant fiber, packing, palm and the like, as animal fiber, , Pig hair, horse hair, raccoon hair, etc. are used respectively.

As the brush material 4, those mixed with abrasive grains can also be used. Examples of the abrasive grains include stainless powder, gold powder, metal powder such as titanium powder, diamond powder, ceramics powder, and inorganic powder,
Any one of these or two or more of them is mixed into the synthetic resin or metal brush material 4.

Now, as described above, the insertion space 3 of the wire 2 is inserted.
A plurality of brush materials 4 are mounted inside, and the wire material 2 is twisted in a spiral shape to arrange the brush materials 4 in a spiral shape (see FIG. 1).
(Refer to (c)), and the twist brush 1 is comprised.

In this case, since the wire rod 2 serving as the central axis of the twisting brush 1 is one, the twisting brush 1 itself becomes extremely thin and can be easily inserted into a pipe or a hole having a small diameter, and deburring. Work such as polishing and polishing can be performed reliably and easily.

The material to be used as the brush material 4, whether a plurality of types are to be adopted, and in the case of a plurality of combinations, the selection of the combination thereof is performed by selecting a work to be processed such as deburring or polishing. It is determined according to the material, the purpose of processing, etc. The same applies to whether or not to mix abrasive grains in the brush material 4, what kind of abrasive grains to use, and the combination thereof.

FIG. 2 is an embodiment showing another structure of the wire rod 2, in which one end of the insertion space 3 is divided into two parts, which are, so to speak, a tip-like shape, and is released at the tip of the wire rod 2 (FIG. 2 (a)), a plurality of brush materials 4 are inserted from the tip notch portion (see FIG. 2 (b)), and the wire 2 is spirally twisted while holding the central portion. Then, the twisted brush 1 can be formed by sufficiently twisting the insertion hollow portion 3 (see FIG. 2C).

Although the present invention has been described above based on the embodiments shown in the drawings, the present invention is not limited to the above embodiments, and may be modified in any manner as long as the configuration described in the claims is not changed. It can be carried out.

[0017]

In summary, according to the present invention, since there is only one wire that holds the brush material and a very thin shape can be manufactured according to the purpose of use, it is possible to manufacture a work having an extremely small diameter. It has many excellent effects such as deburring and polishing of the inner surface can be achieved easily and surely.

[Brief description of drawings]

1 shows an embodiment of the present invention, in which (a) is a perspective view of a wire, (b) is a perspective view of a state in which a brush material is inserted into an insertion space of the wire, and (c) is twisted by twisting. It is a perspective view of the state made into a brush.

2A and 2B show another embodiment of the present invention, in which FIG. 2A is a perspective view of a wire, FIG. 2B is a perspective view of a state where a brush material is inserted into an insertion empty portion of the wire, and FIG. It is a perspective view in the state made into a twist brush.

[Explanation of symbols]

1 twist brush 2 wire rod 3 Insertion empty part 4 brush material

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Yuhito Niizaki             4-5-8 South of East Coast, Chigasaki City, Kanagawa Prefecture F term (reference) 3B202 AA34 EA01 EA04 EA06 EB10                       EG05                 3C063 AA07 AB09 BA09 BA17 EE21                       EE29

Claims (5)

[Claims] 1. An insertion space for a brush material is formed on a metallic wire along a length direction, and a plurality of brush materials are arranged so as to be orthogonal to the length direction of the wire material. A twisted brush characterized in that the brush material is arranged in a spiral shape by attaching a central portion to the wire and twisting the insertion hollow portion of the wire into a spiral shape. 2. The twisting brush according to claim 1, wherein both ends of the insertion hollow portion are closed. 3. The twist brush according to claim 1, wherein one end of the insertion hollow portion is open to the tip of the wire. 4. The brush material is any one kind or two or more kinds of resin wire, metal wire, biodegradable wire, vegetable fiber, animal fiber and the like, according to claim 1. Twisting brush. 5. The twist brush according to claim 4, wherein the abrasive material is mixed in the brush material.