JP3205614U - Shuttlecock and its blades - Google Patents

Abstract

A shuttlecock and its blades are provided. A blade 1 used in an artificial shuttlecock 9, wherein a plurality of the blades are combined with a plurality of blade shaft portions 92 and a cork 91 to form the artificial shuttlecock. The blade includes the connecting portion 10 and the resistance portion 20. A connection part connects with a wing shaft part. The resistance portion is connected to the connection portion and includes a plurality of low air resistance regions 22 and a high air resistance region 21, and each of these low air resistance regions is surrounded by the high air resistance region. [Selection] Figure 1

Description

  The present invention relates to a blade, and more particularly, to a blade used in a shuttlecock.

  The badminton game is a well-known and popular ball sport, and the game system is that the player hits the shuttlecock. In the conventional shuttlecock structure, natural feathers are embedded in cork, and many of the natural feathers are goose feathers or duck feathers, which are bleached and selected before being manufactured as a shuttlecock.

  However, natural feathers are becoming more difficult to obtain and more time-consuming to select, so now the user is provided with an artificial shuttlecock option. Many of the artificial shuttlecocks are now replaced by natural artificial feathers made of nylon soft feathers, and the soft artificial feathers can be released by appropriately blowing away the wind generated when the shuttlecock is struck. However, since the hit feeling provided by the shuttlecock manufactured with this type of artificial feather does not match that of the shuttlecock manufactured with natural feathers, the user mainly uses natural feathers.

  The problem to be solved by the present invention is to provide an artificial shuttlecock blade that approximates a natural shuttlecock.

  In order to solve the above-mentioned problems, the present invention provides a blade that is used in an artificial shuttlecock, and the plurality of blades are combined with a plurality of blade shafts and corks, respectively, to form the artificial shuttlecock. The blade includes a connecting portion and a resistance portion. A connection part connects with a wing shaft part. The resistance portion is connected to the connection portion and includes a plurality of low air resistance regions and high air resistance regions, and each of the low air resistance regions is surrounded by the high air resistance region.

  The present invention further provides another embodiment, wherein the connecting portion has an oblong shape and corresponds to the wing shaft portion.

  The present invention further provides another embodiment, wherein the high air resistance region surrounds the connecting portion, a plurality of virtual reference lines are provided in the resistance portion, and the low air resistance regions are provided on the reference lines, respectively. It is done.

  The present invention further provides another embodiment, and the angle of intersection between the reference line and the connecting portion is 50 to 80 degrees.

  The present invention further provides another embodiment, in which the angle of intersection between the reference line and the connecting portion is 65 degrees.

  The present invention further provides another embodiment, wherein the low air resistance region has a circular outline, and the diameter of the low air resistance region is 2 to 4 mm.

  The present invention further provides another embodiment, where the vanes are made of low density polyethylene.

  The present invention further provides another embodiment, wherein the low air resistance region is formed by inserting the high air resistance region with a needle-like bar.

  The present invention further provides another embodiment, wherein the blades have a generally saddle shape and have a long diagonal and a short diagonal. The length of the long diagonal line L1 is 30 to 45 mm, the length of the short diagonal line L2 is 3 to 11 mm, and the distance between these reference lines is 7 mm.

  The present invention further provides a shuttlecock and includes a cork, a plurality of wing shafts, and the wing. One end of the wing shaft portion is inserted into the cork, and the wing is provided at the other end of the wing shaft portion.

  Through the embodiments, the blade provided by the present invention has at least the following advantages. That is, since the resistance portion includes the high air resistance region and the low air resistance region, the blades can provide a different air resistance in the flight process of the shuttlecock, thereby making it closer to the feel of a natural shuttlecock.

It is a three-dimensional view of the shuttlecock according to the present invention. It is a top view of the blade | wing which concerns on this invention.

  In order to allow the examiner to further understand the technical features of the present invention, a preferred specific example will be described below.

  Referring to FIG. 1, the present invention provides an artificial shuttlecock 9 formed by assembling a cork 91, a plurality of feather shaft portions 92 and a plurality of blades 1, and the artificial shuttlecock 9 is a natural feather through a special structure of the blade 1. Make it feel close to the feel of the manufactured shuttlecock. Each blade 1 is inserted into the cork 91 from the assembly with the blade shaft portion 92 through the blade shaft portion 92, that is, one end of the blade shaft portion 92 is inserted into the cork, and the blade 1 is provided at the other end of the blade shaft portion 92. Thus, the shuttlecock 9 is formed.

Blade 1 provided in the present invention, the density of plastic or density of 0.9~1.48g / cm ³ is produced in glass fiber 1.4~1.9g / cm ^3. Plastics include low density polyethylene (LDPE), polyethylene terephthalate (PET), propylene (PL), polypropylene (PP), acrylonitrile-butadiene-styrene copolymer (ABS), polyamide (PA), and expanded polyethylene (EPE). included. Its overall contour roughly corresponds to the contour of the natural shuttlecock feathers, i.e. it has a generally saddle shape. The blade 1 includes the connecting portion 10 and the resistance portion 20. The connecting portion 10 has an oblong shape, corresponds to the shape of the wing shaft portion 92, and the resistance portions 20 are provided on both sides of the connecting portion 10. The resistance parts 20 on both sides become obtuse triangles 95 to 115 degrees, respectively, and the resistance parts 20 on both sides of the connection part 10 can make the connection part 10 axially symmetric, and the contours of the resistance parts 20 on both sides of the connection part 10 are also The manufacturer can adjust the outer shape of the blade 1 according to the required feel. When the resistance parts 20 on both sides are asymmetric, that is, the resistance part 20 on one side has a narrow side, the resistance part 20 on the other side has a wide side, and the outline of the resistance part 20 on the narrow side has a straight line shape. The contour of the side resistance portion 20 has an arc shape. When the resistance parts 20 on both sides are symmetrical, the outlines of the resistance parts 20 on both sides have an arc shape.

  As can be seen from FIG. 2, the resistance portions 20 on both sides of the connecting portion 10 of the embodiment provided in the present invention are symmetrical, the blade 1 has a substantially bowl shape, and has a long diagonal L1 and a short diagonal L2. However, most of the side angles of the blades 1 of the actual product are arc lines. In the embodiment of the present invention, the connecting portion 10 corresponds to the long diagonal line L1 of the blade 1. The length of the long diagonal L1 is 30 to 45 mm, preferably 38 mm. The length of the short diagonal L2 is 3 to 11 mmd, preferably 8.5 mm. The thickness of the blade 1 is 0.2 to 1.0 mm, preferably 0.6 mm. The manufacturer can adjust the required area and thickness according to the required weight distribution and the magnitude of the air resistance. Both ends defining the long diagonal L1 of the blade 1 are a top T and a bottom B. In the present invention and other embodiments, the contour shape of the blade 1 may be an ellipse or a polygon.

The resistance unit 20 includes a high air resistance region 21 and a plurality of low air resistance regions 22, and each low air resistance region 22 is surrounded by the high air resistance region 21. In the embodiment of the present invention, the high air resistance region 21 is pierced with a needle-like bar (not shown), the fibers of the blade 1 are pressed together by the needle-like bar, and only a few fibers remain in the pierced portion, resulting in low air resistance. Region 22 can be generated. In another embodiment of the present invention, the manufacturer can also generate the low air resistance region 22 by cutting part of the fibers of the high air resistance region 21 through a drilling method. The two examples are only the difference in whether the fibers in the low air resistance region 22 remain. In other words, in the manufacturing process of the blade 1, first, the blade 1 of the high air resistance region 21 is first provided, and each low air resistance region 22 is provided so as to be surrounded by the high air resistance region 21 through a piercing or drilling method. The high air resistance region 21 and the low air resistance region 22 cause different air resistances during the flight process of the shuttlecock 9 through the difference in the distribution density of the blade 1 fiber. . As can be seen from the above manufacturing method, the low air resistance region 22 has a substantially circular shape, and the diameter of each low air resistance region 22 is 2 to 4 mm, preferably 2.7 mm. The low air resistance region 22 may also have a rhombus, plum flower shape, polygonal shape, oval shape, etc., and the area of the low air resistance region 22 is less than or equal to 10 cm ² .

  The arrangement position of each low air resistance region 22 is related to the position of the connecting portion 10. During the manufacturing process, the manufacturer can lay out a plurality of virtual reference lines 23 on the resistance portion 20 before piercing, and the reference lines 23 are only for reference display and are not necessarily lines that exist substantially. The reference line 23 and the connecting portion 10 make an angle θ, and the angle θ is 50 to 80 degrees. In the embodiment of the present invention, the angle θ is 65 degrees. The numerical value of the angle θ refers to the crossing angle between the feathers of the natural feather and the feather shaft, and the manufacturer adjusts the angle θ through a wind tunnel experiment, so that when the shuttlecock 9 is flying, Move closer to And each reference line 23 is provided at intervals, and the reference line 23 closest to the top T has a distance of 7 mm from the top T, and the interval between the reference lines 23 is 1 to 21 mm. Preferably, the interval between the reference lines 23 is similarly 7 mm. The manufacturer can adjust the distance between the reference lines 23 according to a required air resistance coefficient, and can also be set to 3.5 mm.

  When the reference line 23 is provided, the manufacturer can form the low air resistance region 22 by piercing along the reference line 23. In other words, the low air resistance region 22 of the resistance unit 20 is provided on the reference line 23, and the connecting line between two adjacent low air resistance regions 22 is the reference line 23. The resistance portion 20 can be provided with 5 to 40 low air resistance regions 22, preferably 30 pieces.

  In summary, the blade provided in the present invention has at least the following advantages. The resistance part includes a high air resistance region and a low air resistance region, so that the blades provide different air resistance in the flight process of the shuttlecock, thereby bringing the natural shuttlecock closer to the feel of the natural shuttlecock. It also brings close to flight stability.

  This embodiment illustrates only the preferred embodiments of the present invention and does not describe all possible combinations of changes in detail in order to avoid lengthy description. However, it will be apparent to those of ordinary skill in the art that each of the above modules or elements is not necessarily required. And to implement the present invention, other relatively detailed conventional modules or elements may be included. Each module or element can be omitted or modified in view of demand, and the module or element is not necessarily present between any two modules.

  The above is an example, and the present invention is not limited to such an example and should not be interpreted in a narrow sense. For example, if it does not deviate from the basic structure of the present invention, it belongs equally to the scope of the rights claimed by the present invention and conforms to the scope of claims for utility model registration.

1 blade 10 connecting portion 20 resistance portion 21 high air resistance region 22 low air resistance region 23 reference line 9 shuttlecock 91 cork 92 wing shaft portion L1 long diagonal L2 short diagonal T top
B Bottom θ Angle D Diameter

Claims (11)

The blades used in the artificial shuttlecock, wherein the plurality of blades are combined with a plurality of blade shafts and corks to form the artificial shuttlecock,
A connecting portion connected to the wing shaft portion;
Connected to the connecting portion, and includes a plurality of low air resistance regions and a high air resistance region, each of the low air resistance regions is surrounded by the high air resistance region,
The wing | blade characterized by including.   The blade according to claim 1, wherein the connecting portion has an oblong shape and is connected to the wing shaft portion.   The high air resistance region surrounds the connecting portion, the resistance portion is provided with a plurality of virtual reference lines, and the low air resistance regions are respectively provided on the virtual reference lines. Feathers.   The blade according to claim 3, wherein the intersection angle between the virtual reference line and the connecting portion is 50 to 80 degrees.   The blade according to claim 4, wherein an intersection angle between the virtual reference line and the connecting portion is 65 degrees.   The blade according to claim 5, wherein a contour of the low air resistance region is circular, and a diameter of the low air resistance region is 2 to 4 mm. The blade according to claim 6, wherein the blade is made of plastic having a density of 0.9 to 1.48 g / cm ³ or glass fiber having a density of 1.4 to 1.9 g / cm ^3. .   The blade according to claim 7, wherein the low air resistance region is formed by inserting the high air resistance region with a needle bar.   The blade has a substantially bowl shape, has a long diagonal line and a short diagonal line, the length of the long diagonal line L1 is 30 to 45 mm, the length of the short diagonal line L2 is 3 to 11 mm, and the virtual reference line The blade according to claim 8, wherein the gap is 1 to 21 mm. The blade according to claim 5, wherein an area of the low air resistance region is smaller than or equal to 10 cm ² . Cork,
A plurality of wing shafts, one end of which is inserted into the cork;
Each of the other ends of the wing shaft portion is connected to the wing shaft portion and connected to the connection portion, and includes a plurality of low air resistance regions and high air resistance regions, and the low air resistance A plurality of blades each including a resistance portion, each region surrounded by a high air resistance region;
The shuttlecock characterized by including.

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