JPH0975136A - Cleaning brush and its manufacture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cleaning brush which is hard to damage the surface of an object and a manufacture method for such brush. SOLUTION: A bundle of fibers 3 shift in the axial direction Y of an edge roller 2 while rotating in direction R1, and are supplied to the position of processing of an edge roller 2. On the other hand, the edge roller 2 is equipped with a metallic needle, and it rotates in the circumferential direction R while oscillating in the axial direction X of the bundle of fibers 3. Thereby, many metallic needles pass between the head 12 of the bundles of fibers and synthetic fibers 1. At this time, the tips 12 of the synthetic resins 1 are pointed by shaving off the tips 12 of the synthetic fibers 1 in such a way as to scratch them.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning brush and its manufacturing method.

[0002]

2. Description of the Related Art In recent years, synthetic fibers have been used for cleaning brushes such as floors and inner walls. Since the synthetic fiber is cut with a cutter, its cross-sectional shape is
As shown in FIG. 2 (b), it is generally in the shape of an elongated rectangle, and a burr 11 is formed in some cases. Therefore, there is a problem that the tip 10 of the synthetic fiber 1 is hard and the surface of the object is easily scratched.

Therefore, as disclosed in Japanese Patent Application Laid-Open No. 57-177708, a method has been proposed in which the tip of the synthetic fiber of the twisted brush is dipped in a solution to be sharpened in a taper shape. However, when using the above chemical treatment method for a general cleaning brush in which a fiber bundle composed of a large number of synthetic fibers is transplanted in a hair-implanting hole, synthetic fibers may be entangled and welded together, and therefore, this prior art is However, there is a defect that it can be used only for a synthetic brush such as a twisted brush provided with the synthetic fibers separated from each other.

The present invention has been made in view of the above-mentioned conventional problems, and an object thereof is to provide a cleaning brush that hardly scratches the surface of an object, and a method for manufacturing such a brush.

[0005]

In order to achieve the above-mentioned object, the cleaning brush of the present invention has a synthetic fiber having a sharpened front end portion.

According to the manufacturing method of the present invention, a large number of metal needles are passed between the fibers at the tip of the fiber bundle in which the synthetic fibers are bundled, and the tip of the fiber is scratched by the metal needle to be sharpened. It is characterized by making it.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. In the fiber bundle 3 in which the synthetic fibers 1 of FIG. 1A are bundled, the tip portion 12 of each synthetic fiber 1 is thinned as shown in FIG. 2A, that is, sharpened, by machining. The cleaning brush is formed by implanting the sharpened synthetic fiber 1 in a predetermined implant hole. The tip portion 12 of the synthetic fiber 1 is sharpened by the device and method described below.

In FIG. 3, the blade roller 2 in which a large number of metal needles 20 are implanted rotates in the circumferential direction R and vibrates in the radial direction X. The metal needle 20 is, for example, 1 mm
It is formed in a hook shape with the following thickness, and as shown in FIG. 4, a large number are planted slightly obliquely with respect to the circumferential direction of the blade roller 2.

As shown in FIG. 5, each fiber bundle 3 is held in a cylindrical bundle by a clamp jig 4. Each clamp jig 4 is clamped by a feeder not shown, and the feeder is the axial direction Y of the blade roller 2.
The fiber bundle 3 is rotated in the radial direction R1 of the fiber bundle 3 while moving the fiber bundle 3 along.

Next, the manufacturing method will be described. The fiber bundle 3 moves in the axial direction Y of the blade roller 2 while rotating in the radial direction R1, and is supplied to the processing position of the blade roller 2. On the other hand, the blade roller 2 rotates in the circumferential direction R while vibrating in the axial direction X of the fiber bundle 3. Thereby, as shown in FIG. 3, a large number of metal needles 20 pass between the synthetic fibers 1 of the tip portion 12 of the fiber bundle 3 and the synthetic fibers 1.
At this time, the metal needle 20 scrapes off the tip 12 of the synthetic fiber 1 so as to scratch it, and sharpens the tip 12 of the synthetic fiber 1 as shown in FIG. At the same time, in the fiber bundle 3 of FIG. 1A, a minute gap is formed between the sharpened portions 12 as shown in FIG. 1B.

The synthetic fiber 1 thus obtained does not have a risk of damaging an object such as a floor or a wall because the tip 10 of FIG. 2 has a low rigidity. Further, since the tip portion 12 of the synthetic fiber 1 is thin and soft, there is no risk of scattering dirt.

Since the tip 10 of the synthetic fiber 1 is thin,
Since the tip 10 also enters the minute concave portion, the cleaning effect is improved.

Further, since the fiber bundle 3 of FIG. 1A is sharpened by machining, the tip ends of the synthetic fibers are separated from each other as shown in FIG. There is a small gap between them. Therefore, the cleaning agent (soap, cleaner, etc.) is easily sucked in, so that the cleaning effect is significantly improved.

Further, in the present manufacturing method, the synthetic fibers 1 are not melted by a chemical treatment, so that even if the synthetic fibers 1 are processed in the state of the fiber bundle 3, there is no possibility that the synthetic fibers 1 will be welded to each other.

[0015]

As described above, since the cleaning brush of the present invention has a thin tip and is soft, the object is not easily scratched, there is no fear of scattering dirt, and even a minute recess is formed. Excellent in cleaning effect because the tips of the hairs get in. In particular, since the tip of the synthetic fiber is sharpened by machining, the synthetic fibers scatter during processing and a minute gap is created in the tip, so it is easy to suck the cleaning liquid, and therefore the cleaning effect is remarkable. improves.

Further, in the present manufacturing method, since sharpening is performed by machining, unlike the chemical treatment in which the synthetic fibers are dissolved with a solution, the tips of the synthetic fibers are welded to each other even when the synthetic fibers are processed in a fiber bundle state. There is no fear.

[Brief description of drawings]

FIG. 1A is a perspective view showing a fiber bundle before processing, and FIG.
[Fig. 3] is a perspective view showing a fiber bundle after processing.

FIG. 2 (a) is a side view showing the synthetic fiber after processing,
(B) is a side view showing a synthetic fiber before processing.

FIG. 3 is a side view showing the manufacturing method.

FIG. 4 is a conceptual diagram of a roller showing an arrangement state of metal needles.

FIG. 5 is a perspective view showing a manufacturing method.

[Explanation of symbols]

 1: Synthetic fiber 12: Tip part 2: Roller 3: Fiber bundle 20: Metal needle

Claims (4)

[Claims] 1. A cleaning brush in which the tip of each synthetic fiber constituting the cleaning brush is sharpened by machining. 2. A plurality of metal needles are passed between fibers at the tip of a fiber bundle in which synthetic fibers are bundled, and the tip of the fiber is scratched and sharpened by the metal needle. And a method for manufacturing a cleaning brush. 3. The method of manufacturing a cleaning brush according to claim 2, wherein the plurality of metal needles are fixed to an outer periphery of a roller, and the metal needle passes between the fibers by rotating the roller. . 4. The cleaning device according to claim 3, wherein the fiber bundle is moved in the radial direction of the fiber bundle while moving the fiber bundle along the axial direction of the roller to sharpen the tip of the fiber bundle. Brush manufacturing method.