KR840002867Y1 - Ball and method of making same - Google Patents

Abstract

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Description

ball

1 is a front view of a spherical center portion formed by agglomerating a spherical cloth as a first step for manufacturing a ball according to the present invention.

2 is a front view of a ball covering the center of the cloth with adhesive tape.

3 is a front view of a ball wound with an adhesive tape layer.

4 is a front view of a ball covering a secondary adhesive tape on a yarn.

5 is a plan view of a first piece of fabric symmetrical for cover purposes.

6 is a plan view of the second piece of cloth.

7 is a plan view of the first and second circumference of the circumference of the state overlapping.

8 is an enlarged view of FIG. 7.

9 is a cross-sectional view taken along the line 9-9 of FIG.

10 is a front view of a covered ball.

11 is a front view of the completed ball.

The present invention relates to a substitute for a baseball or soft ball that is easy to be injured by a player by using a hard ball such as a baseball or soft ball in a limited place, and also easily to damage surrounding materials such as a glass window.

In general, baseballs or balls of the same type have been used for many years. In addition, the sports industry has begun to develop lighter, softer and less dangerous balls, and has been manufactured in various forms of polyurethane foam, rubber, plastics or similar materials, but the practical characteristics of the ball are different from those of the conventional ones. Because of not very effective.

Lighter, softer, and less dangerous balls that have the characteristics of a typical baseball or soft ball have the following advantages: (1) improved performance and reduced risk of damage; (2) technical skill for good competition is still met; (3) the ball does not fly far, so play is possible in limited places such as small playgrounds, yards, and indoor gyms; 4) Reduced stakeholder risk, particularly in the above paragraph, paragraph (4) is beneficial for children who are not yet well co-operated with the eye to catch the ball flying at high speed.

It relates to a ball having the advantages as described above of the present invention. In other words, as a suitable material and technology, the ball having the characteristics and apparent size and shape of a conventional baseball or soft ball does not fly far, so it can be played in a narrow space. In addition, because the ball is light and soft, the possibility of being injured or opened by the blown ball is reduced.

Referring to FIG. 1, the ball according to the present invention is described as having a spherical shape having a length of about 17, 8 to 21 cm, suitably 20.3 cm, in order to form the core of the ball with a piece of cloth or other suitable material. Unite Acrylic cloth is suitable as such a material, and wool or polyester cloth is mixed or wool and polyester, acrylic and polyester are used. Other suitable materials may be used, which are pieces of rubber plates comprising reticular rubber plates formed as by-products of the pressing process for producing rubber products. These coos consist of one or more materials, which are filled and pressed to form the desired sphere.

The core is as homogeneous as possible and should be placed exactly in the center of the ball.

As shown in FIG. 2, the center or core is formed into a spherical shape and then covered in any manner with an adhesive tape having a length of about 2.7 to 4 m, suitably 3.4 m. The length of the circumference of the ball made so far is about 17.9 to 21.1 cm.

The adhesive tape used in the present invention has a property of sticking only to itself and not to other materials. The adhesive tape may be used in different widths, weights, and shapes, but it is suitable to use a double-sided tape having a width of about 2.2 cm, 1 m, and 1.6 g. The suitable adhesive tape adopted in the present invention has several advantages. Firstly, since the adhesive tape only adheres to itself, there is no problem of prematurely sticking to the core or yarn as occurs in conventional tapes. It can be easily equipped with a piece to form a sphere, and finally give the elasticity to the ball composed of the internal tissue according to the present invention.

As shown in Figure 3, it is covered with adhesive tape and then wound with a yarn 0.5 g per 1 m weight and 27.4 to 30.5 m long, suitably 29.3 m long. The length of the circumference of the ball made so far is 22.5 cm. As another embodiment of the present invention can be used a yarn weighing 0.6g per 1m, in this case takes a length of 24.4m to 27.4m. Other types of yarn may also be used, especially four-thread yarns consisting of 67% acrylic and 33% polyester. The weight of the yarn can also be used with a slight change, but you can use 0.4 to 0.5g per meter. But heavy yarns, like carpets, are not good.

In preparing a ball, that is, a soft substitute, it is suitable to wind the yarn around the adhesive tape covering the center part and to wind all of the yarn continuously as shown in FIG. You can also attach a piece of yarn simply around. In the step of covering the central part of the yarn with the adhesive tape and then attaching the piece of yarn around the central part, the part of the yarn is additionally wound with the yarn to keep the piece in place in FIG. As shown, the step of preparing the ball is completed.

The exact size of the ball in the steps up to this point is determined by measuring the intermediate structure wound with yarn using standard gauges or by measuring the diameter of the circumference. When completed, the yarn is wound around the intermediate structure before being covered with adhesive tape to produce a ball with a circumference of usually 22.9 cm. The cover is preferably about 22.5 cm in length.

Referring now to FIG. 4, the yarn wound center is covered with a secondary adhesive tape. In the present invention, at least one layer of the entirety of the yarn-wound intermediate structure is covered with adhesive tape having a length of about 2.4 to 3.5 m, preferably about 2.9 m. If necessary, waterproof tape or resin is applied to the adhesive tape layer to provide waterproof performance. In another method, the waterproofing tape or resin may be applied directly to the intermediate structure of FIG. 3 without covering the adhesive tape.

The ball that has been advanced so far is covered by the method shown in Figs. 7, 8, 9 and 10 as the cover made of artificial fabric shown in Figs. The man-made cloth contains more than 50% of man-made fibers such as polyester and nylon. Cotton or similar coverings are not suitable because they are partially weakened when wet, and also tend to be torn by their strength when batted. As the material of the cover, polyester, in particular biwoven polyester, is suitable.

The cover is prepared in an symmetrical 8 shape as shown in FIGS. 5 and 6. The length of the cover is 18.9cm, the head 3 of the waist 4 is 3.5cm, 6.4cm in width, respectively, and the weight is relatively light, 203.5g per square meter. A six-shaped cover is placed on the front of the ball and held in place with a needle, and the stitch is projected onto the surface of the ball. The protrusion makes it easy for the pitcher to throw pitch balls such as knuckleballs and slow curves, and also plays a good role. The material of the yarn used here is polyester, and since its durability is especially good, it can be said to be suitable dust removal. As will be described later, the eight-shaped cover is joined to each other and overlap the faces, such an overlapping portion is projected slightly from the surface of the ball. In fact, the length of the circumference of the finished ball is about 22.9cm, the weight is 56.7 ~ 85.1g, suitably 63.8 ~ 70.9g, but the optimal weight is 63.8g. The octopus is covered in a ball and treated for about 10 minutes with hot air to remove creases, which is done with a conventional paper dryer used to cure a synthetic material such as polyester. The operating temperature is usually 60 to 68 ° C.

Use any suitable method to cover and secure the ball's internal structure. First, the silk screen printing method is used to print an 8-shaped cover made of artificial fabric with a black system or a short color line with a red color. As shown in FIG. Run up to a distance of 0.8 cm. This line extends to the outer edge of the first fabric of FIG. 5, but is not necessary because the second fabric of FIG. 6 overlaps with the circumference of the first fabric of FIG. 5 (see line 6). . The overlap of both fabrics in the finished ball is approximately 0.64 cm. The first piece of cloth has colored lines along the circumference but is not necessary or beneficial. Thus this piece is called an rimless piece.

The same type of 8-character cloth is shown in 6 degrees, but other methods are possible, but the silkscreen printing method prints the color lines along the circumference. In other words, the angle is shorter than the right angle with respect to the circumference of the insertion part, and the width is about 0.32 cm. The short line of the second piece of cloth is called a line, which extends at least to the color line along the circumference, and the length of the second line may be up to the edge of the cloth, and is about 0.64 cm. Each line is preferably at the same angle as the rim, but it is not necessary. The second piece of cloth shown in FIG. 6 is called a rimmed piece.

The trademark or chairman prints on the piece of cloth that makes up the ball's cover. Referring to FIGS. 7 and 8, the rimmed head portion 3 has a rimmed piece of fabric that is joined to the waist 4 of the rimmed piece of cloth. Therefore, this is a double overlap, and the width is suitably about 0.32 cm. The edge thus formed is sewn to seal the lid as shown in FIG. The two pieces of cloth are arranged so that the overlapping line extends along the circumference of the second piece of cloth through the rim, assuming the sewing line is lined with the frame of the frame and the frame without the frame. Two parallel pieces of fabric are printed at the same angle to form parallel rows. However, as another suitable method, the lines can be printed at opposite angles to the two pieces of cloth so that the traces joined together form a shape. The color of the thread used here is preferably the same as the color of the border line. In addition, the same sewing technique can sew two unframed cloth pieces without color, and in such a case, the color of the thread used to combine the two pieces of cloth is preferably the same as the color of the cloth pieces.

Within the scope of the present invention, the color lines of the first and second pieces of cloth for making the cover can be colorless. In this case, a line extending shortly inward from each circumference of the two pieces of cloth becomes in line as the two pieces of cloth join together.

As a suitable method for making the cover, the pocket or cup is stitched two consecutive pieces along the silkscreened rim of the rim of the rim as the rim of the rim overlaps the rim of the rim. Make it. It is suitable to sew by machine, but there is no need to do it by machine. Two pieces of cloth can also be glued together by different means, glues, again sewing is certain. The pocket or cup has a large passage of about 8.9 cm in diameter to allow insertion of the internal structure of the ball as shown in FIG.

The thread to be used for sealing the passage of the cup by hand or by machine after containing the ball's internal structure or inserted into the cup is suitable. It is preferable to perform the sewing to the extent possible, and it is also preferable to silkscreen the rim so that the sealed sewing portion is not visible on the surface of the finished ball as shown in FIG. The sealed stitches protrude over any surface of the ball, allowing good control in throwing.

The amount of material used to make the core of the ball, which is a substitute for the soft ball, and the amount of yarn used to wind the core is proportional to the volume of the material used to make the substitute for the baseball, as described above.

As described above, an object of the present invention is to provide a novel ball. Listing the advantages of the ball according to the present invention, it is durable and can be washed, can be used at least in conventional pitching machines, can be played in a limited place, and is a beginner using a conventional baseball or soft ball that is also easy to be injured. Can be safely played by using the ball of the present invention. Outline of the ball structure according to the present invention is a cover having a generally uniform density core, the adhesive tape covering the core, the yarn wound on the adhesive tape and the secondary adhesive tape covering the yarn, and the elastic force covering the above core structure Consists of Therefore, the player using the ball according to the present invention will have confidence during the game.

Although the present invention has been described in detail through suitable embodiments, modifications and variations are possible within the spirit and scope of the present invention. For example, the hardness and endurance of the ball can be adjusted by increasing or decreasing the tensile force and the amount of yarn wrapped around the adhesive tape layer covering the core, as well as the density of the spherical center or core. If you want a waterproof ball, you can waterproof it inside. It is also suitable to use an adhesive tape on the secondary layer of the adhesive tape. Alternatively, the adhesive tape may be sprayed or a resin may be used. Covers suitable for the internal structure detailed above are two eight-shaped pieces of cloth which overlap through the rims along the circumference of the second piece of cloth or the overlap in the absence of an edge as the pieces of cloth are combined. Short colored lines that are negatively aligned can be processed by silkscreen, printing, heat transfer or other methods to be used in conventional baseballs or the like.

Claims (1)

A ball consisting of a generally spherical internal structure and a cover comprising a first and twenty-eighth piece of cloth consisting of a middle waist and a head, wherein the first and second pieces of cloth are generally uniformly spaced apart from each other. Consists of a short color line (1) extending at an angle to the inner side of the circumference at the overlapping point and separately added a color line (2) along the circumference to the second piece of cloth, the first and second pieces of cloth respectively The color line along the circumference of the second piece of cloth is short as the overlap of the circumference of the second piece of cloth is placed on the circumference of the first piece of cloth with the portion 4 and the head 3 being related to each other. A ball, characterized in that the first and second pieces of cloth are sealed together along the color line (2) while extending through.