TWI701065B - Plastic flakes of badminton - Google Patents

Abstract

A plastic feather of a shuttlecock includes a feather shaft and two feather blades. The feather shaft includes an insertion end, 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 On the vertical axis of the plane, the two vanes are respectively formed on the left and right sides of the rachis, and each vane is formed with a plurality of air flow holes arranged at intervals, wherein the rachis gradually faces from the insertion end Upward and outwardly curved arches, the tip of the rachis to the insertion end relative to the vertical axis, the yaw angle toward the outside is greater than 0 degrees and less than or equal to 30 degrees, the tip of the rachis to the insertion end is relative to the For the vertical axis, the yaw angle in the left and right directions falls within the range of ±30 degrees and includes ±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 shuttlecocks are 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 beating. The feathers are broken or the hair surface is broken, and it is easy to be scrapped.

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 integrated, it cannot produce the airflow effect like natural feathers. , The hitting feel 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 wool flakes instead of natural feathers has been developed to produce a blow feeling close to that of a natural badminton. 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 natural feathers, and further improvement is needed.

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 piece for a shuttlecock. The plastic feather piece is integrally formed of 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 feather shaft is gradually curved upward and outward from the insertion end, so that a space is formed between the top end and the insertion end and the vertical shaft Deflection angle, from the tip of the rachis to the insertion end with respect to the vertical axis, towards the outer side by a first angle, and the first angle is greater than 0 degrees and less than or equal to 30 degrees, and the tip of the rachis to the insert With respect to the vertical axis, the end forms a left and right yaw angle in the left and right directions, and the left and 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 feather shaft of the present invention is gradually curved and extended outward, so that the feather shaft 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 causes the airflow to pass through the air guide hole during the flight to maintain the stability of the flying attitude and the stable flight path, so that the plastic wool piece of the present invention is used It can simulate the flying characteristics of a shuttlecock using natural feathers.

10, 10’, 10A, 10B, 10C, 10D, 10E: plastic wool

11, 11’: feather shaft

111, 111’: Insert end

112, 112’: Top

113: Insert the head

13: Feather

14, 14A, 14B, 14C, 14D, 14E: air flow holes

141, 142: horizontal edge

143: top horizontal edge

144: bottom side

145, 146: Longitudinal

50: clamp

P: plane

Z: vertical axis

α 1: first angle

α 2, α 2’: 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.

Figure 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.

In order to understand the technical features and practical effects of the present invention in detail, and implement it according to the content of the specification, the preferred embodiment 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 injection molded 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 deflection 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. The angle α 1, the first angle α 1 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 relative to the vertical axis Z A left-right yaw angle α 2, the left-right yaw angle α 2 falls within the range of ±30 degrees and includes ±30 degrees. Preferably, the left-right yaw angle α 2 is non-zero and less than ±10 In the first embodiment, the tip 112 of the rachis 11 to the insertion end 111 is deflected by an angle α 2 to the left with respect to the vertical axis Z; please refer to FIG. 5, in the second embodiment, the rachis The top end 112' of 11' to the insertion end 111' is swayed by an angle α 2'to the right 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 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 on 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 laterally extending endpoints 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 extend downward to the end point of the lateral extension, and then extend a distance downward toward the left and right sides of the feather axis 11, and then fold inward and tilt downward to connect to the feather轴11.

The air guide holes 14 on each vane 13 are arranged at intervals along the axis 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 from the rachis 11 Extend in the direction of, and the side of each air flow hole 14 close to the outer circumference of the vane 13 is spaced from the outer circumference of the vane 13, and the lateral side 141 of each air flow hole 14 faces away from the rachis 11 Inclined upward, 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, and Extend radially, the air guide holes 14 The distance between them is about 2.5 mm, and the farthest distance from the farthest end of the air guide hole 14 from the rachis 11 to the central axis of the rachis 11 is 8 mm.

Referring 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 Extending obliquely downwards 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 obliquely downwards in the direction away from the rachis 11, 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 fins 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 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 natural feathers 20 are arranged staggeredly, and the plastic wool pieces 10 and the natural feathers 20 are obliquely inserted into the ball head 40 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 Insert two natural feathers 20, and other application changes, use the staggered arrangement of the plastic wool sheet 10 and the natural feathers 20 to increase the overall The structural strength of the body feather skirt unit 30 prevents the natural feathers 20 from being damaged by slaps, improves the slap resistance, and reduces the production cost.

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 use the swing 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 flight. The rotating airflow drives the shuttlecock to rotate during flight, and the airflow holes 14 can be set to allow the airflow to penetrate through the vane 13 to maintain a stable flight attitude and a stable flight path, so that the shuttlecock has almost all natural feathers 20 Flight effect.

In other shuttlecock embodiments, the shuttlecock can also all use the plastic hair piece 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: Plastic raw film

11: feather shaft

111: Insert end

112: top

113: Insert the head

13: Feather

14: Airflow hole

P: plane

Z: vertical axis

Claims (10)

A plastic feather for a shuttlecock. The plastic feather 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 gradually extends upward and outward from the insertion end, so that a space deflection angle is formed between the top end and the insertion end and the vertical axis. The tip 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, and the tip of the rachis to the insertion end facing 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 badminton according to claim 1, wherein the plastic raw piece is integrally molded from 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 The inner and outer sides protrude from the surface of the vane. The plastic feather piece of the shuttlecock 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. The badminton plastic feather piece of any one of claims 1 to 4, wherein the air flow holes on each vane are arranged at intervals along the axis of the rachis, and the air flow holes extend transversely. According to claim 5, the plastic feathers of the shuttlecock, wherein the lateral sides of the air flow holes on each vane are upwardly inclined toward the direction away from the feather 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 in a longitudinal direction. The plastic feather of a shuttlecock according to claim 7, wherein each vane is arranged with two sets of upper and lower air flow holes, and the outer contour formed by the air flow holes is related to the outer circumference of the vane and the feather The shafts form a pitch. The badminton plastic feather piece of 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 badminton plastic feather piece of 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 an interval, and grids of different densities are arranged on the two vanes.

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