TW202118537A - Plastic feather sheet of shuttlecock capable of simulating air flow guiding effect similar to natural feather - Google Patents

Abstract

A plastic feather sheet of a shuttlecock includes a rachis and two vanes. The rachis includes an insertion end and a top end, and defines a left side, a right side, an outer side, an inner side, a plate vertical to the insertion end, and a vertical axis vertical to the plane. The two vanes are respectively formed on the left and right sides of the rachis. Each vane is formed with a plurality of air guiding holes that are arranged at intervals. The rachis is gradually bent and extended upwardly and outwardly from the insertion end. The deflection angle of the top end of the rachis toward the outer side to the insertion end with respect to the vertical axis is larger than 0 degree and less than and equal to 30 degrees. The deflection angle of the top end of the rachis toward the left and right sides to the insertion end with respect to the vertical axis is within the range of +/- 30 degrees and includes the +/- 30 degrees.

Description

Badminton plastic film

The present invention relates to a shuttlecock, and in particular to a plastic wool sheet for the shuttlecock.

The existing shuttlecock is mainly divided into two types: natural feathers and plastics. Due to the characteristics of natural feathers, the shuttlecocks using natural feathers have better guiding effect and better flying characteristics when flying. In recent years, the supply of natural feathers has dropped sharply, and after natural feathers are obtained, they need to go through the steps of screening, straightening, trimming and gluing before they can be used as materials for manufacturing feathers. The processing cost is relatively high. Natural feathers are also prone to slaps. It is also easy to be scrapped if the feathers are broken or the hair surface is broken.

Most of the plastic shuttlecocks are made of nylon, instead of natural feathers. The structure is stronger and can reduce the damage of the shuttlecock. However, because the skirt wings of the plastic shuttlecock are connected as a whole, it cannot produce the airflow effect like natural feathers. , The hitting touch provided is not as good as the shuttlecock made of natural feathers.

In order to enhance the blow feeling of the shuttlecock, a shuttlecock with artificial fur instead of natural feathers was developed to produce a blow feeling close to that of a natural badminton. However, the disadvantage of the existing artificial fur sheet is that the artificial fur sheet mainly has a straight rod and two wings. When the wool piece is inserted into the ball head, it usually forms a straight cone-shaped feather skirt unit, which is prone to wind resistance and cannot guide the airflow like a natural feather, which needs further improvement.

In view of this, the main purpose of the present invention is to provide a plastic wool piece installed on a shuttlecock, and the plastic wool piece can simulate the effect of guiding airflow similar to a natural feather.

In order to achieve the above objective, the present invention proposes a plastic feather for a shuttlecock. The plastic feather is integrally formed from a plastic material. It includes a rachis and two feathers. The rachis includes an insertion end and a top end, and defines a left side, A right side, an outer side, an inner side, a plane perpendicular to the insertion end, and a vertical axis perpendicular to the plane, the two vanes are respectively formed on the left and right sides of the rachis and adjacent to the top, on each vane A plurality of air-guiding holes arranged at intervals are formed, wherein the rachis is gradually curved upward and outward from the insertion end, so that a gap is formed between the top end and the insertion end and the vertical axis Z Spatial yaw angle, from the tip of the rachis to the insertion end with respect to the vertical axis, toward the outer side yaw a first angle, the first angle is greater than 0 degrees and less than or equal to 30 degrees, the tip of the rachis to the With respect to the vertical axis, the insertion end forms a left-right yaw angle in the left and right directions, and the left-right yaw angle falls within a range of ±30 degrees and includes ±30 degrees.

The plastic wool piece of the present invention is integrally formed by plastic, which is easy to manufacture, and can reduce the production cost of using natural feathers. The rachis of the present invention is gradually curved and extended outwards, so that the rachis has a spatial deflection angle, and The shuttlecock provided with the plastic wool piece of the present invention easily guides the air flow during the flight, and the shuttlecock makes the air flow pass through the air guide hole during the flight to maintain the stability of the flying posture and the stable flight path, so that the plastic wool piece of the present invention can be used It can simulate the flying characteristics of a shuttlecock using natural feathers.

In order to understand the technical features and practical effects of the present invention in detail, and can be implemented in accordance with the content of the specification, the preferred embodiment as shown in the figure is further used, and the detailed description is as follows:

Please refer to FIGS. 1 to 3, which are the first preferred embodiment of the plastic wool piece 10 of the shuttlecock of the present invention. The plastic wool piece 10 is integrally formed of plastic material. It can be integrally formed by injection molding of plastic material, which is easy to manufacture and can reduce The production cost of using natural feathers.

The plastic wool piece 10 includes a rachis 11 and two feathers 13. The rachis 11 includes an insertion end 111 and a top end 112, and defines a left side, a right side, an outer side, an inner side, and a perpendicular to the insertion end 111 The plane P of, and a vertical axis Z perpendicular to the plane P. The left and right sides referred to here refer to the left-hand side of the rachis 11 viewed from the outside as the left side, and the right-hand side as the right side.

The two vanes 13 are respectively formed on the left and right sides of the rachis 11 and adjacent to the top end 112. Each vane 13 is formed with a plurality of air flow holes 14 arranged at intervals.

The rachis 11 gradually extends upward and outward from the insertion end 111, so that a space yaw angle is formed between the top end 112 to the insertion end 111 and the vertical axis Z. The rachis 11 is The inserting end 111 forms an inserting head 113 for inserting into the ball head of the shuttlecock, and the outer diameter of the shaft 11 is tapered from the top of the inserting head 113 toward the top 112, so that the feather The center of gravity of the shaft 11 is biased toward the insertion end 111.

Please refer to FIG. 2, when the clamping member 50 is clamped on the inner and outer sides of the insertion end 111, the top end 112 of the feather shaft 11 to the insertion end 111 is deflected toward the outer side with respect to the vertical axis Z. Angle α1, the first angle α1 is greater than 0 degrees and less than or equal to 30 degrees.

3, when the clamping member 50 is clamped on the left and right sides of the insertion end 111, the top end 112 of the feather shaft 11 to the insertion end 111 is formed in a direction facing the left and right sides with respect to the vertical axis Z A left-right yaw angle α2, the left-right yaw angle α2 falls within the range of ±30 degrees, and includes ±30 degrees. Preferably, the left-right yaw angle α2 is non-zero and less than ±10 degrees. In one embodiment, the top end 112 of the rachis 11 to the insertion end 111 is skewed to the left by an angle α2 with respect to the vertical axis Z; please refer to FIG. 5, in the second embodiment, the top end of the rachis 11' 112' to the insertion end 111' is swayed to the right by an angle α2' with respect to the vertical axis Z.

1 and 3, the two vanes 13 are thin, the shape of the two vanes 13 is symmetrical to the left and right along the center of the rachis 11, the two vanes 13 may have the same area size, or The area of one vane 13 is larger than the area of the other vane 13, and the rachis 11 protrudes from the surface of the two vanes 13 at the inner and outer sides. The two vanes 13 form a zither-shaped structure. The laterally extending distance L1 of the flaps 13 is shorter than the longitudinally extending distance L2, and the end points of the lateral extensions of the two vanes 13 are located close to the top end 112; the two vanes 13 respectively move away from the rachis from the top end 112 The left and right directions of 11 obliquely extend downward to the end points of the lateral extension, and then obliquely extend downward for a certain distance in the left and right directions close to the rachis 11, and then fold inward and obliquely downward to connect to the feather轴11.

The air guide holes 14 on each vane 13 are arranged at intervals along the axial direction of the rachis 11, and the air guide holes 14 extend laterally, and each air guide hole 14 is laterally away from the rachis 11 and away from the raft. Extends in the direction, and the side of each air flow hole 14 close to the outer circumference of the vane 13 forms a distance from the outer circumference of the vane 13, and the transverse side 141 of each air flow hole 14 faces upwards away from the rachis 11 Inclined, and the two horizontal sides 141, 142 of each air guide hole 14 are parallel, and the distance between the two horizontal sides 141, 142 is about 2.5 mm. The two horizontal sides 141, 142 can also form an angle, which is radial The distance between the air guide holes 14 is about 2.5 mm, and the farthest end point of the air guide holes 14 from the rachis 11 to the central axis of the rachis 11 is 8 km. Centi.

Please refer to FIG. 6, in the third embodiment of the plastic wool sheet 10A, the air flow holes 14A on each vane 13 extend longitudinally and radially, and each vane 13 is arranged with two sets of upper and lower air flow holes 14A. The outer contour formed by the air guide holes 14A is spaced apart from the outer circumference of the vane 13 and the rachis 11. The top lateral side 143 and the bottom lateral side 144 of the air guide holes 14A in the upper row are both in the form of Extending obliquely downward in the direction away from the rachis 11, the top transverse side 143 of the air guide holes 14A located in the lower row also extends downwards obliquely in the direction away from the rachis 11, and is close to the air guide hole at the top 112 of the rachis 11 The vertical linear distance L3 between the end point of 14A closest to the top end 112 and the end point farthest from the top end 112 is 15 mm, and the distance between the two longitudinal sides 145 and 146 of the air guide hole 14A is less than or equal to 3 Millimeters.

Please refer to FIGS. 7 to 10. In other embodiments of the plastic raw sheets 10B, 10C, 10D, and 10E, the air flow holes 14B, 14C, 14D, and 14E form a grid, and the air flow holes 14B, 14C The outer contour formed by 14D, 14E forms a distance with the outer circumference of the vane 13 and the rachis 11. As shown in Figures 9 and 10, the two vanes 13 are provided with grids of the same density, or as shown in the figure 7 As shown in Figure 8, the two vanes 13 are provided with grids of different densities, as shown in Figure 7, the grid density of the right vane 13 is greater than the grid density of the left vane 13, or as shown in Figure 8, the left The mesh density of vane 13 is greater than the mesh density of vane 13 on the right.

Please refer to FIG. 4, which is an embodiment of a shuttlecock equipped with the plastic wool sheet 10 of the present invention. In the embodiment of the shuttlecock, the shuttlecock includes a head 40 and a skirt unit 30. The skirt unit of the shuttlecock 30. The plastic wool pieces 10 and the natural feathers 20 are arranged staggeredly, and the plastic wool pieces 10 and the natural feathers 20 are inserted in the ball head 40 obliquely, and are generally conical. The arrangement relationship of the plastic wool pieces 10 and the natural feathers 20 , A plastic wool piece 10 can be inserted between two adjacent natural feathers 20, or two plastic wool pieces 10 can be inserted between two adjacent natural feathers 20, or between two adjacent plastic wool pieces 10 Inserting two natural feathers 20, and other application changes, using the staggered arrangement of the plastic fleece 10 and the natural feathers 20 to increase the structural strength of the overall feather skirt unit 30, and prevent the natural feathers 20 from being damaged due to slaps. Its resistance to slaps reduces production costs.

The feather shaft 11 of the plastic feather piece 10 is used to gradually curve outward, so that the bending angle of the feather shaft 11 matches the shape of the natural feather shaft of the natural feather 20, which reduces the impact of the plastic feather piece 10 and the natural feather 20. The wind resistance formed can also make use of the deflection of the feather shaft 11 to the left and right, so that the feather shaft 11 of the plastic feather piece 10 of the shuttlecock and the feather shaft of the natural feather 20 are swayed in the same direction, making the shuttlecock easy to produce during the flight. The rotating airflow drives the shuttlecock to rotate during flight, and the airflow holes 14 can be set to make the airflow penetrate through the vane 13 to maintain a stable flight attitude and the flight path of the feather is stable, so that the shuttlecock has almost all natural feathers 20 Flight effect.

In other shuttlecock embodiments, the shuttlecock can also use the plastic feather 10 of the present invention, and use the feather shaft 11 to gradually curve outwardly, so that the featherball is in the shape of a cone with the end arched outward, and The feather shafts 11 of the plastic feather pieces 10 are all tilted toward the same side, so that the shuttlecock has the effect of guiding airflow similar to natural feathers when flying, and during the flight, the airflow passes through the air guide holes 14 to maintain the flying posture. Stability and stability of the flight path, and can simulate the flying characteristics similar to the badminton using natural feathers.

10, 10’, 10A, 10B, 10C, 10D, 10E: Plastic raw film 11, 11’: feather shaft 111, 111’: Insert end 112, 112’: Top 113: Insert the head 13: Pinnacles 14, 14A, 14B, 14C, 14D, 14E: air guide holes 141, 142: horizontal edge 143: top horizontal edge 144: bottom side 145, 146: Longitudinal 50: Clamping parts P: plane Z: vertical axis α1: first angle α2, α2’: Angle L1: distance L2: distance L3: distance

Fig. 1 is a perspective view of the first preferred embodiment of the present invention. Figure 2 is a side view of the first preferred embodiment of the present invention. Figure 3 is another side view of the first preferred embodiment of the present invention. Fig. 4 is an exploded perspective view of a shuttlecock equipped with a plastic wool piece according to the first preferred embodiment of the present invention. Figure 5 is a side view of the second preferred embodiment of the present invention. Fig. 6 is a side view of the third preferred embodiment of the present invention. Fig. 7 is a side view of the fourth preferred embodiment of the present invention. Fig. 8 is a side view of the fifth preferred embodiment of the present invention. Fig. 9 is a side view of the sixth preferred embodiment of the present invention. Fig. 10 is a side view of the seventh preferred embodiment of the present invention.

10: Plastic raw film

11: feather shaft

111: Insert end

112: top

113: Insert the head

13: Pinnacles

14: Airflow hole

P: plane

Z: vertical axis

Claims (10)

A plastic feather piece for a shuttlecock. The plastic feather piece is integrally formed of plastic material. It includes a feather shaft and two feather feathers. The feather shaft includes an insertion end and a top end, and defines a left side, a right side, an outer side, and an inner side. , A plane perpendicular to the insertion end, and a vertical axis perpendicular to the plane, the two vanes are respectively formed on the left and right sides of the rachis, and adjacent to the top, each vane is formed with a plurality of spaced arrays The air guide hole, wherein the rachis is gradually curved upward and outward from the insertion end, so that a space deflection angle is formed between the top end to the insertion end and the vertical axis Z, and the rachis The tip of the pimple to the insertion end deflection toward the outer side relative to the vertical axis by a first angle, the first angle being greater than 0 degrees and less than or equal to 30 degrees, from the tip of the feather axis to the insertion end relative to the vertical axis, The left and right directions form a left-right yaw angle, and the left-right yaw angle falls within a range of ±30 degrees and includes ±30 degrees. The plastic raw piece of the shuttlecock according to claim 1, wherein the plastic raw piece is an integral injection molding of a plastic material. The badminton plastic feather piece of claim 1, wherein the rachis forms an insertion head at the insertion end, the outer diameter of the rachis is tapered from the top of the insertion head toward the top, and the rachis is at the tip The inner and outer sides protrude from the surface of the vane. The plastic feather piece of the badminton according to claim 1, wherein the lateral extension distance of the two vanes is shorter than the longitudinal extension distance, and the end points of the lateral extension of the two vanes are located close to the top end. The badminton plastic feather piece according to any one of claims 1 to 4, wherein the air flow holes on each vane are arranged at intervals along the axial direction of the rachis, and the air flow holes extend transversely. According to claim 5, the plastic feathers of the shuttlecock, wherein the horizontal sides of the air flow holes on each vane are upwardly inclined toward the direction away from the and axis. The badminton plastic feather piece according to any one of claims 1 to 4, wherein the air guide holes on each vane extend radially longitudinally. The plastic feather of a shuttlecock according to claim 7, wherein each vane is arranged with two sets of upper and lower air guide holes, and the outer contour formed by the air guide holes is related to the outer circumference of the vane and the feather The shafts form a pitch. The plastic feather of a shuttlecock according to any one of claims 1 to 4, wherein the air flow holes on each vane form a grid shape, and the outer contour formed by the air flow holes and the outer periphery of the vane and The rachis forms a distance, and grids of the same density are arranged on the two vanes. The plastic feather of a shuttlecock according to any one of claims 1 to 4, wherein the air flow holes on each vane form a grid shape, and the outer contour formed by the air flow holes and the outer periphery of the vane and The rachis forms a distance, and grids of different densities are arranged on the two vanes.

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