JPH0466671B2 - - Google Patents

Description

[Detailed Description of the Invention] Purpose of the Invention (Industrial Field of Application) The present invention is useful for cleaning the surfaces of various articles such as aircraft, automobiles, or production machines, or for finishing polishing them to give them gloss. The present invention relates to a polishing buff.

(Prior art) Conventionally, polishing buffs used for cleaning or surface finishing are made by layering a large number of woven fabrics in which the warp and weft are finely woven with equal density and sewing them into a donut shape. The relatively hard part of the machine is used to rotate and polish the surface of objects to be cleaned, such as aircraft.

(Problem to be Solved by the Invention) However, since the conventional polishing buff has a hard outer peripheral surface, when the final finish is applied to the surface of the fuselage of a fighter jet made of duralumin or titanium alloy, the surface is polished. There was a problem that it was not suitable for cleaning the fuselage because it caused many scratches. For this reason, in reality, a rotary buff was not used, and the dirt on the surface was manually wiped off with a cleaning cloth, which took a lot of time and made it impossible to reduce work costs. There was a problem.

Structure of the Invention (Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention combines a thick fiber bundle formed by twisting a group of fibers such as cotton or a large number of cotton threads, and thin cotton threads. A woven fabric is woven with one side as the weft and the other as the warp, and the thick fiber bundles are oriented in the longitudinal direction to form a circular ring, and then the central part is folded back and woven while narrowing inward. The fabric is polymerized and formed into a donut disk shape, with the fiber bundles oriented in the radial direction.

(Function) By adopting the above-mentioned means, the present invention functions as follows.

On the outer peripheral surface of the buff body, many cut ends of the fiber bundles, that is, cut ends of cotton fibers or cotton threads, etc., are exposed, and the density of thin threads relative to the fiber bundles is small, so the outer peripheral surface of the buff main body is soft and sticky as a whole. The contact with the surface of the object to be polished becomes soft, and the surface of the object to be polished is not damaged. Furthermore, since rotary polishing becomes possible, the efficiency of polishing operations such as cleaning and surface finishing is improved.

(Example) Hereinafter, an example embodying the present invention will be described based on the drawings.

FIG. 1 shows the entire polishing buff of the present invention, in which a clamp fitting 2 as a clamping member having a large number of clamp tongues 2a formed on both sides is fitted onto the outer peripheral surface of a disk-shaped mounting fitting 1. A buff body 3 formed from a woven fabric 4 described later using the same clamp fitting 2
The inner periphery of the clamp is gripped.
As shown in FIG. 2, the clamp fitting 2 is clamped and held from both sides by a gripping piece 1a formed by cutting and raising the outer circumferential portion of the mounting metal fitting 1 and a press-molded gripping piece 1b.

Next, a method of manufacturing the polishing buff body 3 will be described.

The woven fabric 4 used for the buff body 3 of this embodiment is formed as follows.

As shown in Fig. 3, a large number of thin cotton threads 5, e.g.
20 to 30 fibers are twisted together to form a twisted thread 6 as a thick fiber bundle. Next, this twisted yarn 6 is turned into a weft 6'
Then, using another continuous thin cotton thread 5 as the warp thread 5', both threads 6' and 5' are woven to form a woven fabric 4 as shown in FIG. Thereafter, this woven fabric 4 is cut into a predetermined rectangular shape, and then formed into a cylindrical shape (multiple windings may be used) in which the twisted threads 6' are arranged in the longitudinal direction as shown in FIG. The woven fabric 4 is polymerized by folding the woven fabric 4 while narrowing the center part shown by the chain line inward, and as shown in the cross section of only one side in FIG. A cloth 8 is formed. Thereafter, as shown in FIG. 8, a plurality of the buff cloths 8 are stacked one on top of the other to form a donut-shaped buff body 3, and the inner circumferential edge of the buff body 3 is connected to the clamp tongues 2a to 2a of the clamp fitting 2. 2a from both sides. In this way, a polishing buff as shown in FIG. 1 is formed.

In this embodiment, cotton threads 5 having a count of 8 to 15 are used, and the folding pitch of the warp threads 5' as shown in FIG. There is.

Further, in the above embodiment, the twisted yarn 6 is the weft yarn 6',
Although the independent cotton threads 5 are used as the warp threads 5', the woven fabric 4 may be formed using the twisted threads 6 as the warp threads and the cotton threads 5 as the weft threads.

In the embodiment of the present invention, the cut ends of the twisted threads 6 are exposed on the entire outer peripheral surface of the buff body 3, and the density of the warp threads 5' relative to the weft threads 6' is extremely small, so that the tips of the soft fibers of the cotton threads 5 are exposed. Numerous pieces are exposed, forming a soft carpet-like cleaning surface as a whole. When this buff is attached to a rotating device (not shown) and rotated, and the outer peripheral surface of the buff comes into contact with the surface of the object to be cleaned, such as the fuselage of an aircraft, the contact of the cleaning surface to the surface becomes soft, and the same surface becomes damaged. The cleaning work is done quickly and without being washed away.

Note that the present invention can also be embodied in the following embodiments.

(1) Instead of the cotton thread 5, a group of cotton fibers is twisted and formed into a thick fiber bundle. Furthermore, in addition to cotton yarn or cotton fibers, the fiber bundle may be formed from yarns or fibers that have properties equivalent to those of cotton yarns or cotton fibers.

(2) In the process of cutting the woven fabric 4 to produce the buff cloth 8, the twisted threads 6 are cut into the buff body 3 as shown in FIG.
The cut shall be made obliquely to the radial direction of the

In this case, the tips of the warp threads 5' tend to gradually scatter and disappear from the buff body 3 during polishing, and as a result, the tips of the twisted threads 6 tend to be untwisted, and the entire outer circumferential surface of the buff body 3 becomes softer, making it convenient for polishing soft surfaces.

Effects of the Invention As detailed above, the present invention not only enables rapid polishing without damaging the surface of the object to be polished, such as the fuselage of an aircraft, and improves work efficiency, but also improves work efficiency even in the event of wear and tear. It has the advantage of being extremely easy to replace.

[Brief explanation of the drawing]

FIG. 1 is a front view showing the entire polishing buff of the present invention, FIG. 2 is an enlarged sectional view taken along the line A-A in FIG. 1, and FIG.
The figure is a perspective view of cotton yarn, Figure 4 is a perspective view of twisted yarn, Figure 5 is a perspective view of woven fabric, Figure 6 is a perspective view of the woven fabric cut into an annular shape, and Figure 7 is a buff element. FIG. 8 is a perspective view of the buff cloth, and FIG. 9 is a partial front view showing another example of the buff body. A buff body 3, a woven fabric 4, a cotton thread 5, a warp 5', a twisted thread 6 as a fiber bundle, a weft 6', and a buff cloth 8.

Claims (1)

[Claims] 1 A woven fabric made of a group of fibers such as cotton or a thick fiber bundle made by twisting a large number of cotton threads, and a thin cotton thread, etc., with one of them as the weft and the other as the warp, with the thick fiber bundle being the longitudinal The woven fabric is formed into an annular shape so as to face in the radial direction, and the woven fabric is polymerized by folding the woven fabric while narrowing the central part inward, and is formed into a donut disc shape so that the fiber bundles are oriented in the radial direction. A polishing buff fabric characterized by an array.