JPH06246642A - Cleaning brush - Google Patents

Abstract

PURPOSE:To improve a life of a wire brush by diffusing concentration of stress at the root part of wires. CONSTITUTION:A wire brush 1 is formed by securing many wires 3 to the peripheral surface of a disk-shaped rotary base material 2. The wire 3 is formed into almost a straight bristle, and an epoxy system bonding agent 4 is infiltrated to be hardened from the tip part 3b to a root part 3a of the wires 3, therebetween. By this bonding agent 4, stress acting in the root part of hard bristle material is absorbed and relaxed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning brush, such as a wire brush, for removing welding spatter, burrs and the like on an object to be cleaned such as an automobile injection valve.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 3, a wire brush 1 for removing welding spatter of an automobile injection valve has a large number of wavy hair-like wires 3 around a disc-shaped rotating base material 2. It is formed by fixing (including caulking). Then, the rotating base member 2 is used by pressing the tip of the wire against the injection valve 6 rotating in the direction of the arrow b while rotating the rotating substrate 2 in the direction of the arrow a. In addition, as another prior art, the actual development of 59-18
See 3360.

[0003]

However, in the prior art shown in FIG. 3, the stress due to the injection valve 6 is concentrated on the root portion 3a of the wire 3 during use, and the wire 3 is rooted in a relatively short period of time. There was a problem that it was broken from 3a and the life was short.

In view of the above problems, the present invention mainly aims to improve the life of the wire brush 1 by diffusing stress concentration on the root portion 3a of the wire 3.

The present invention is not limited to the wire brush 1 described above, and it can be widely applied to a cleaning brush having a large number of hard bristles fixed to a base material. The purpose is also to extend the life of such a cleaning brush.

[0006]

In order to solve the above-mentioned problems, a cleaning brush according to the present invention is a cleaning brush in which a large number of hard bristles are fixed to a base material, and the hard bristles are formed into almost straight bristles. While being formed, an elastic adhesive penetrates and is hardened between the hard hairs from the tip to the root of the hard hair.

[0007]

EFFECTS OF THE INVENTION The elastic adhesive that has penetrated and hardened between the hard hairs from the tip to the root of the hard hair absorbs and relaxes the stress acting on the root of the hard hair during use. Concentration of stress on the root part is prevented, and stress is diffused. Therefore, the root portion of the hard bristle is less likely to be broken, and the life of the cleaning brush is improved.

The elastic adhesive is permeated and hardened not only at the root of the hard bristle but also at the tip. Therefore, compared with the case where the elastic adhesive penetrates only into the root of the hard hair and is hardened, the trouble of opening the tip of the hard hair during use does not occur, and welding spatter, stubborn burr, etc. are removed. The ability can be maintained, and breakage of the hard hair body due to opening of the tip of the hard hair body can be prevented.

Further, since the hard hairs are formed into almost straight hairs, when the elastic adhesive is permeated between the hard hairs as compared with the case where the hard hairs are formed into the conventional corrugated hairs, the elastic hairs are elastic. The adhesive penetrates sufficiently evenly, which further increases the life of the cleaning brush.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows the structure of a wire brush 1 as a cleaning brush according to this embodiment.

The wire brush 1 includes a large number of wires 3 as hard hairs on the peripheral surface of a disk-shaped rotating base material 2 as a base material.
It is fixedly formed by caulking. The wires 3 are formed into almost straight hairs, and an epoxy adhesive 4 as an elastic adhesive penetrates and cures between the wires 3 from the root 3a to the tip 3b, as shown by the diagonal lines in the figure. Has been done. The diameter of the rotating substrate 2 is about 30 mm, and the wire 3
Has a diameter of about 0.2 mm, and its length from the root to the tip is about 10 mm. The epoxy adhesive 4 is, for example, Hamatite FE-4000 (manufactured by Yokohama Rubber Co., Ltd.).
Is.

The wire brush 1 having the above structure is shown by an arrow b in the figure.
Rotating substrate 2 against injection valve 6 as an object to be cleaned set on rotating jig 5 rotating in the direction
Is used while being pressed while rotating in the direction of arrow a in the figure. At this time, the root portion 3 of the wire 3 of the wire brush 1
The stress from the injection valve 6 acts on a,
This stress is absorbed and relieved by the epoxy adhesive 4. Therefore, the stress concentration on the root portion 3a is prevented, the stress diffuses, and as a result, the wire 3 is less likely to be broken, and the life of the wire brush 1 is improved. The wire brush 1
Can also be moved in the direction of arrow c in the figure.

Further, since the tip portions 3b of the wires 3 are connected to each other via the epoxy adhesive 4, there is no fear that the ability to open during use to remove welding spatter on the surface of the injection valve 6 is lowered. Moreover, breakage of the wire 3 due to the opening of the tip portion 3b can be prevented.

Further, when the epoxy adhesive 4 is permeated between the wires 3, since the wires 3 are formed into almost straight hairs, compared with the case where the wire 3 is formed into conventional corrugated hairs.
The epoxy adhesive 4 penetrates between the wires 3 evenly, and as a result, the life of the wire brush 1 is further improved. The problem of the corrugated wire 3 is that the press work for forming the corrugated wire 3 causes a portion where the wire 3 locally adheres, and the epoxy adhesive is used between this portion and other portions. It is considered that this is because the distribution of 4 becomes non-uniform.

When the welding spatter removal work of the injection valve 6 was performed using the wire brush 1 having the above-mentioned structure, as shown in FIG. 2, in the conventional example of FIG. 3, only 600 brushes could be cleaned per brush. On the other hand, it was confirmed that 1400 brushes could be cleaned and that the life was greatly extended.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a wire brush as a cleaning brush according to an embodiment.

FIG. 2 is a graph for explaining the effect of the wire brush.

FIG. 3 is a configuration diagram of a conventional wire brush.

[Explanation of symbols]

 1 Wire Brush (Cleaning Brush) 2 Rotating Base Material (Base Material) 3 Wire (Hard Hair Body) 4 Epoxy Adhesive (Elastic Adhesive)

Claims (1)

[Claims] 1. A cleaning brush in which a large number of hard bristles are fixed to a base material, wherein the hard bristles are formed into substantially straight bristles, and the space between the hard bristles is from the tip to the root of the hard bristles. A cleaning brush characterized in that an elastic adhesive penetrates into and is cured.