Title: BADMINTON SHUTTLECOCK AND MANUFACTURING METHOD OF THE SAME

Technical Field The present invention relates to a badminton shuttlecock and a manufacturing method of the same, and in particular to a badminton shuttlecock and a manufacturing method of the same which are made by integrally injecting and molding a body and wings in a circular shape with the wings being foldable, so it is easy to manufacture a mold, and a manufacturing cost can be saved.

Background Art

A conventional shuttlecock consisting of wings and a head might be classified into a game shuttlecock of which wings are made of feathers, and head is made of a cork, and a universal type shuttlecock of which wings are made of a synthetic resin material, and head is made of a resin material having flexibility.

The game shuttlecock is mainly used in an indoor space without wind, and is disadvantageously discarded after it is used one time due to its weak durability. The universal type shuttlecock might be used in an outdoor space since it has a better durability and is less influenced by wind as compared to the above game shuttlecock. As shown in Figure 1 , the universal type shuttlecock is made of a flexible synthetic resin material and includes a wing 200 integrally formed of an engaging part 100 at its one end, and a head 300 which is engaged to the engaging part.

However, the universal type shuttlecock has a lot of problems that the wings are injection-molded, and the wings are formed in a conical shape, so it is very hard to manufacture a mold for an injection, and its manufacturing cost significantly increases. Since the wings are integrally formed, the weight is heavy, and thus a flying distance increases, so it is disadvantageous that the universal type shuttlecock might be used in a wider space.

Disclosure of Invention Accordingly, it is an object of the present invention to provide a badminton shuttlecock and a manufacturing method of the same which overcome the problems encountered in the conventional art.

To achieve the above objects, there is provided a badminton shuttlecock which comprises a body which has an engaging part in its one end; a wing which includes a shank, in which a plurality of the wings are extended in radial directions on an upper outer side of the body with the wings being foldable, and a feather part provided at one end of the shank; a connection stripe which connects the wings with one another; and a head which is fixed in the engaging part. An insertion protrusion is formed in a lower surface of the shank, and a plurality of engaging grooves are formed on an upper surface of the body in a circular shape, and the wings are fixedly inserted into the body.

The feather part is equipped with a plurality of air passage holes. The feather part is formed of a plurality of feathers. To achieve the above objects, there is provided a method for

manufacturing a badminton shuttlecock which comprises a step in which a body having an engaging part at its one end, a shank which is extended in a radial shape along an upper outer side of the body in multiple numbers with the wings being foldable, and a feather part which is provided in one end of the shank are injected and molded; a step in which the wings are upwardly bent, and connected with one another by using a connection stripe; and a step for fixing the head to the engaging part.

Effects of Invention In the badminton shuttlecock and a manufacturing method of the same according to the present invention, the badminton shuttlecock is generally made by integrally injecting and molding a body and wings in a circular shape with the wings being foldable, so it is easy to manufacture a mold, and a manufacturing cost can be saved. Since a plurality of wings are fixedly connected by means of a connection strips, a reliable flying orientation is obtained, and with its shorter flying distance, the shuttlecock of the present invention can be used in a relatively narrower space.

Brief Description of the Drawings

Figure 1 is a cross sectional view illustrating a conventional shuttlecock. Figure 2 is a cross sectional view illustrating a badminton shuttlecock according to the present invention.

Figure 3 is a plane view illustrating a badminton shuttlecock according to the present invention.

Figure 4 is a view illustrating an operation state of a badminton shuttlecock according to the present invention.

Figure 5 is a view illustrating a badminton shuttlecock according to another embodiment of the present invention. Figure 6 is a view illustrating a badminton shuttlecock according to further another embodiment of the present invention.

Best Mode for Carrying Out the Invention

The preferred embodiments of the badminton shuttlecock and a manufacturing method of the same according to the present invention will be described with reference to the accompanying drawings.

Figure 2 is a cross sectional view illustrating a badminton shuttlecock according to the present invention. Figure 3 is a plane view illustrating a badminton shuttlecock according to the present invention. Figure 4 is a view illustrating an operation state of a badminton shuttlecock according to the present invention.

As shown therein, the badminton shuttlecock 1 according to the present invention includes a body 2 having an engaging part 21 in its one end, a plurality of wings 3 arranged in a radial shape on an upper side of the body 2, a connection stripe 4 for connecting the wings 3 with one another, and a head 5 fixed in the engaging part 21.

Here, since the wings 3 are foldable in an integral structure with respect to the body 2, the mold of the body 2 and the wings 3 can be easily manufactured. As shown in Figure 3 or 4, the body 2 and the wings 3 are formed in a circular shape in an integral structure, so the inner structure of the

mold is not needed to be a conical shape like the wings of the conventional shuttlecock, which leads to an easier manufacture of the mold, and the manufacturing cost might decrease. Since the wings 3 are formed in separate structures, a flying orientation and a proper flying distance of the badminton shuttlecock 1 can be obtained.

The wings 3 are made of flexible synthetic resin materials and include a shank 31 , and a feather part 32 integrally formed with an end of the shank 31. The wings 3 have the same functions as the feathers used in the game shuttlecock. Since the wings 3 are formed in the body 2 in separate structures, the flying orientation in air is smooth and enhanced. The weight of the shuttlecock can decrease by decreasing the number of the wings 3, so a proper flying distance can be obtained. A plurality of air passage holes 321 are formed in the heather part 32 for a good air passage. The air passage holes 321 might be formed in various shapes except for the shape shown in the drawings. Here, it is preferred that the body 2 and the wings 3 are made of flexible synthetic resins, and as shown in Figure 4, the upper outer part of the body 2 and the wings 3 are integrally connected by means of the connection part 23, and the wings 3 are contracted in the arrow direction in the drawings.

The head 5 is formed of a cork, and it might be formed of a synthetic resin material having flexibility. At this time, as shown in Figure 2, the head 2 is equipped with a fixing groove 51 having a concave groove part 511 in its inner side, and the fixing groove 511 is fixedly inserted into the engaging part 21. An engaging protrusion part 211 corresponding to the concave groove part 511 is formed in the engaging part 21, so the head 5 is not escaped from the engaging part 21 by means of an external impact. The head 5 might be tightly inserted

into the engaging part 21 or might be fixed in the engaging part 21.

In the injected and molded body 2 and wings 3, the wings 3 are contracted in upward directions, and each wing 3 is fixedly connected with a connection stripe 4. At this time, the portions contacting with the connection stripe 4 and the wings 3 are coated by means of an adhesive for thereby fixedly connecting the same. Connecting and fixing the wings 3 with a connection stripe 4 are the same as the conventional game shuttlecock(made of feathers of geese), and are well known in the art, so the detained descriptions of the same will be omitted. Figure 6 is a view illustrating a badminton shuttlecock according to another embodiment of the present invention.

The wings 3 provided in the body 2 are contracted, and are fixedly connected by means of a connection stripe 4. These constructions are not limited thereto. For example, as shown in Figure 5, an insertion protrusion 311 might be formed in a lower surface of the shank 31, and a plurality of engaging grooves 22 might be formed in a circular shape on an upper surface of the body 2. The wings 3 are fixedly connected by means of a connection stripe so that the insertion protrusions 311 of the shank 2 are engaged in the engaging groove 22 when folding the wings 3.

At this time, the lower surface(contacting with the upper surface of the body in the drawings) of the shank 31 might be formed at a certain slant angle, so that the shank 31 keeps a certain slant angle on the upper surface of the body-2. Figure 6 is a view illustrating a badminton shuttlecock according to

further another embodiment of the present invention.

As shown therein, a plurality of air passage holes 321 are formed in the feather part 32, so a flying orientation of the shuttlecock 1 is uniform, and a flying distance can be adjusted. The above construction is not limited thereto. For example, the feather part 32 might be formed of a plurality of feathers 322 like actual feathers of geese, so it is possible to keep a flying orientation and a flying distance of the shuttlecock. Namely, since feathers 322 are separate from one another, it is possible to implement a uniform flying orientation like actual feathers of geese, and since the resistance of the wind of the feathers 322 increase, so a uniform flying distance can be obtained, and it can be used in a relatively narrower space.

The feathers 322 are injected along with the shank, and a non-woven cloth or a cloth material is cut by laser, and is attached to one end of the shank 31 for thereby forming feathers. The manufacturing method of a badminton shuttlecock according to the present invention comprises a step in which a body 2 having an engaging part 21 at its one end, a shank 31 which is extended in a radial shape along an upper outer side of the body 2 in multiple numbers with the wings 3 being foldable, and a feather part 32 which is provided in one end of the shank 31 are injected and molded, a step in which the wings 3 are upwardly bent, and connected with one another by using a connection stripe 4, and a step for fixing the head 5 to the engaging part 21 by a tight insertion method or an adhering method.

At this time, the wings 2 and the connection stripe 4 are fixedly adhered by means of an adhesive.

Industrial Applicability

In the badminton shuttlecock and a manufacturing method of the same according to the present invention, the badminton shuttlecock is generally made by integrally injecting and molding a body and wings in a circular shape with the wings being foldable, so it is easy to manufacture a mold, and a manufacturing cost can be saved.

Since a plurality of wings are fixedly connected by means of a connection strips, a reliable flying orientation is obtained, and with its shorter flying distance, the shuttlecock of the present invention can be used in a relatively narrower space.

As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described examples are not limited by any of the details of the foregoing description, unless otherwise specified, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.