JP5758133B2 - Shuttlecock blades and shuttlecock - Google Patents

Description

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

  Badminton is a competition in which a competitor hits a shuttlecock with a racket on a cork base that is roughly hemispherical with adhesive, etc., and can be used by anyone regardless of age or gender. It is widely known as recreation that can be done relatively easily. A shuttlecock used for badminton is generally a waterfowl feather such as a goose (hereinafter sometimes referred to as "natural feather" or "natural feather") fixed to the upper surface of the base opposite to the bottom. Is.

  In recent years, shuttlecocks using natural feathers have become more expensive if a stable supply of natural feathers cannot be maintained due to diseases such as avian influenza or changes in aquaculture production due to climate effects. Therefore, a shuttlecock has been developed in which artificial feathers imitating natural feathers are formed of synthetic resin and fixed to a base (for example, see Patent Document 1 below).

JP 2008-206970 A

  By the way, when the shuttlecock is hit with a racket, a large wind pressure is instantaneously applied to each blade of the shuttlecock. With a shuttlecock of natural blades, the wind generated when the shuttlecock is struck can be released by each blade appropriately spreading. In the initial use of the shuttlecock, the vanes once released to escape the wind can immediately return to the original shape or a shape close to the original shape, but if the shuttlecock is repeated many times, the once released vane It will remain scattered without returning to its original shape, and the flight performance will be reduced, making it unusable for use as a shuttlecock and being discarded.

  In addition, even with shuttlecocks that have artificial feathers fixed to the base, as they repeatedly hit back with a racket, the artificial feather edges will eventually become scattered and are not suitable for use in competitions. It will be discarded.

  Until now, it was unavoidable that each blade would be scattered by repeated striking with a racket, and the idea was to make up for that defect with mass production of shuttlecocks. As a result of research and development, shuttlecock blades capable of preventing and suppressing the flight characteristics of the shuttlecock from rapidly decreasing in a relatively short period of time, and shuttlecocks equipped with such shuttlecock artificial blades It came to devise.

That is, the present invention relates to a blade that is applied to a shuttlecock of a badminton and is attached to a base, and a shaft portion that is directly fixed to the base in a state where the base end region is inserted into the base, and a tip end region of the shaft portion And at least the tip portion of the wing portion is reinforced by an adhesion process, and the shaft portion and the wing portion are artificial shaft portions and wing portions imitating natural shaft portions and wing portions. A flat surface cut obliquely at a predetermined angle with respect to the extending direction of the shaft portion is formed in the upper end side region of the portion, and a wing portion is bonded to the flat surface .

  Here, the “adhesion treatment” in the present invention is a concept including a thermal welding treatment, an ultrasonic welding treatment, and an impregnation treatment using an impregnating agent (impregnation liquid) in addition to the treatment using an adhesive. In particular, the type of adhesive is not limited, and any adhesive may be used as long as it has adhesiveness. Natural adhesives as well as synthetic resin adhesives (synthetic adhesives) It may be an agent. In addition, the “adhesion treatment” of the present invention includes a tape-like adhesive treatment in addition to an adhesive that is in a liquid state before being attached to an object (the tip portion of the wing in claim 1) and cured. An adhesion treatment using an adhesive tape in which an adhesive is applied and immersed in a medium is also included.

  And since the shuttlecock blade | wing concerning this invention has reinforced at least the front-end | tip part itself of the wing | wing part by the adhesion | attachment process, it can prevent that the front-end | tip part of a wing | blade part spreads easily. Therefore, when the shuttlecock provided with such shuttlecock blades is hit with a racket, it is possible to prevent / suppress the tip portion of the wing portion from being scattered by wind pressure. In addition, even if reinforcement by adhesion processing is repeated with repeated racquets, it may eventually occur, but the number of racquets until the occurrence of scatter is more than twice that of conventional products. The inventor obtained the result by experiment.

  In this way, by reinforcing at least the tip of the wing portion with an adhesive treatment, the intended flight characteristics can be maintained over a longer period than before, and the durability is greatly improved.

  In addition, since the present inventor has focused on the problem that “fluctuation” is likely to occur particularly at the tip of the wing of the shuttlecock blades, in the present invention, “at least the tip of the wing is bonded. However, according to the description, the shuttlecock blade according to the present invention is not limited to the one in which only the tip portion of the wing portion is reinforced by the bonding process. That is, the shuttlecock blades of the present invention are, for example, those in which the entire wing part is reinforced by an adhesion process, those in which the upper half area of the wing part is reinforced by an adhesion process, or the outer edge part including the tip part of the wing part The whole or the outer edge portion includes a portion in which a predetermined region including the tip portion is reinforced by an adhesive treatment, and the portion reinforced by the adhesive treatment is appropriately changed.

  In particular, if the shuttlecock blades are reinforced with the wings and the tip part of the shaft part, the reinforcement of the tip part of the shaft part that is often cracked (broken) by the wind pressure at the time of striking with the racket is also achieved by the adhesion process. Such a shaft portion and the wing portion in which at least the tip portion is reinforced by the adhesion treatment can be combined to further improve the durability of the entire wing.

  The shuttlecock according to the present invention includes a base having a semispherical bottom and a plurality of shuttlecock blades having the above-described configuration attached to a flat upper surface opposite to the bottom of the base. It is characterized by being.

  If it is such a shuttlecock, the various effect based on the shuttlecock blade | wing mentioned above will be exhibited, and it will become a shuttlecock excellent in durability. The shuttlecock according to the present invention is an embodiment in which all the blades are artificial feathers in which at least the tip portion of the wing part is reinforced by an adhesion process, and all the blades are natural feathers in which at least the tip part of the wing part is reinforced by an adhesion process. A mode in which these artificial feathers and natural feathers are shared (mixed), and all these modes are included. In an aspect in which artificial feathers and natural feathers are mixed, if the artificial feathers and natural feathers are alternately arranged, the balance of the entire shuttlecock can be easily improved.

  Furthermore, in the shuttlecock according to the present invention, if a configuration in which adjacent shuttlecock blades are not bonded to each other is adopted, the skirt portion formed by the collection of the blades is subjected to an instantaneous wind pressure at the time of striking with a racket. Can be expanded appropriately, and the wind can be suitably escaped.

  According to the present invention, at least the tip portion of the wing portion is reinforced by the adhesion process, and the tip portion of the wing portion is relatively easily and quickly scattered by the wind pressure caused by striking with the racket. It is possible to provide a shuttlecock blade capable of preventing and suppressing a conventional problem in which characteristics rapidly deteriorate in a relatively short period of time, and a shuttlecock provided with such an artificial feather for a shuttlecock.

1 is an overall schematic diagram of a shuttlecock according to an embodiment of the present invention. The whole figure of the artificial feather for shuttlecocks concerning the embodiment. FIG. 3 is a schematic cross-sectional view taken along the line aa in FIG. 2. The figure which shows typically the process in which the axial part in the embodiment is formed. The cross-sectional schematic diagram of the state which fixed the artificial feather for shuttlecocks in the embodiment to the stand. The figure explaining the reinforcement area | region of the artificial feather for shuttlecocks in the embodiment.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the shuttlecock blade 2 according to the present embodiment (hereinafter sometimes simply referred to as “blade 2”) is opposite to the bottom portion of the base 3 having a semispherical bottom. A predetermined number of pieces are attached to a flat upper surface on the side, and the shuttlecock 1 is configured together with the base 3.

  As shown in FIGS. 1 and 2, the blade 2 includes a shaft portion 21 that is directly fixed to the base 3 in a state where the base end side region (lower end side region) is inserted into the base 3, and a tip end side region of the shaft portion 21. And a wing portion 22 attached to the (upper end region). The blade | wing 2 which concerns on this embodiment is an artificial feather provided with the axial part 21 and the wing | blade part 22 which imitated the axial part and wing | blade part of the natural feather | wing.

  As shown in FIGS. 2 and 3, the shaft portion 21 is composed of a hollow tubular member 21 a formed of a synthetic resin, and the proximal end region and the distal end region are inclined at an arbitrary angle with respect to the axial direction 2 </ b> A. It has been excised. In FIG. 2, for the sake of convenience of explanation, a pattern is attached to the excised part. The cut-out portion in the proximal end region functions as an insertion portion 211 when the shaft portion 21 is inserted into the table 3, and the cut-out portion in the upper end side region is used when the shaft portion 21 and the wing portion 22 are bonded and fixed. It functions as an adhesive surface 212. In the present embodiment, the ratio of the bonding surface 212 occupying the entire shaft portion 21 (the total length along the axial direction 2 </ b> A of the shaft portion 21) is set larger than that of the insertion portion 211. Further, in the present embodiment, as shown in FIG. 4, by cutting the central portion of one cylindrical member 21P at a predetermined angle, two shaft portions 21 each having an adhesive surface 212 can be obtained simultaneously. ing. FIG. 4 is a schematic diagram of the cylindrical member 21P at the time before the cutting process, and the cut portion is indicated by a one-dot chain line. When the two shaft portions 21 are obtained by cutting the cylindrical member 21P, the cut surface may be the adhesive surface 212 or the insertion portion 211 as described above.

  The wing portion 22 is obtained by applying (coating) polyurethane or acrylic resin to a sheet-like member woven with synthetic fibers or natural fibers, for example. The wing portion 22 made of such a material has good rigidity and elasticity (elastic return force). The entire central portion in the width direction of the wing portion 22 is attached to the shaft portion 21 with, for example, an adhesive. In the present embodiment, the wing part 22 is adhered and fixed to the shaft part 21 with an adhesive in a state where most of the area of the wing part 22 that overlaps the shaft part 21 is in close contact with the bonding surface 212 of the shaft part 21. Yes. In addition, the adhesion between the shaft portion 21 and the wing portion 22 may use a heat welding process, an ultrasonic welding process, or an impregnation process in addition to a process using an adhesive.

  In this way, the artificial feather 2 according to the present embodiment in which the shaft portion 21 and the wing portion 22 are integrated so as not to be separated, the insertion portion 211 of the shaft portion 21 is inserted into the base 3 and bonded as shown in FIG. It can be fixed to the table 3 by the agent.

  And the blade | wing 2 which concerns on this embodiment has reinforced the front-end | tip part of the wing | blade part 22, and the front-end | tip part of the axial part 21 with the adhesive agent. In FIG. 6, for convenience of explanation, a boundary line between a region 221 reinforced with an adhesive (reinforced region 221) and a region not reinforced with an adhesive (non-reinforced region) is indicated by a two-dot chain line, and a pattern is formed in the reinforced region 221. Is attached. A line passing through a point moved from several millimeters to several tens of millimeters (along the axial direction 2A) from the distal end of the shaft portion 21 corresponding to the distal end of the entire blade 2 to the reinforced region 221 and the non-reinforced region The boundary line is set. In the present embodiment, a line passing through the left and right curved portions that are the boundary portion between the tip (upper edge) and both side edges of the outer edge of the wing portion 22 is set as a boundary line between the reinforced region 221 and the non-reinforced region, A substantially triangular area surrounded by the upper edge of the wing part 22 and the boundary line at the position sandwiching the tip of the shaft part 21 and having the tip of the shaft part 21 as the apex is set as a reinforcing region 221 subjected to an adhesion process. Yes. In addition, it is also possible to set the line displaced to the front end side or the base end side of the blade 2 from the line passing through the left and right curved portions as the boundary line. In the present embodiment, of the entire blade 2, the tip, that is, the line moved from the tip of the shaft portion 21 toward the base end by 5 mm to 7 mm is the boundary line.

  Moreover, the blade | wing 2 which concerns on this embodiment has reinforced the front-end | tip part of the wing | blade part 22 and the front-end | tip part of the axial part 21 with a synthetic adhesive. Synthetic adhesives include, as is well known, water-dispersed (emulsion) and solvent types, and the composition varies, but acrylic, vinyl acetate, excellent adhesion and elasticity, A urethane system or the like is preferable, and a mixture of a plurality of systems may be used. In addition, as an aspect in which the adhesive is attached to the blade 2, an embodiment in which the adhesive is applied to the blade 2 using a tool such as a brush or a brush can be used. However, as a method with high work efficiency, the adhesive is stored in a predetermined container. A mode in which the tip portion of the blade 2 is immersed in a liquid adhesive can also be adopted. Moreover, although the kind of the adhesive applied to the tip portion of the shaft portion 21 and the adhesive applied to the tip portion of the wing portion 22 may be different, in this embodiment, the tip portion of the shaft portion 21 and the wing portion 22 The same kind of adhesive is attached to the tip. Thereby, an adhesive agent can be simultaneously attached to the tip portion of the shaft portion 21 and the tip portion of the wing portion 22 in the same bonding step (bonding process), and the working efficiency is improved.

  As shown in FIG. 1 and FIG. 5, the base 3 covers a base body 31 made of cork having an upper surface opposite to the hemispherical bottom formed on a flat surface, and the base body 31 other than the flat surface. It is a well-known one provided with a covering member 32.

  The shuttlecock 1 has a predetermined number of blades 2 (16 in accordance with the regulations of the Japan Badminton Association) attached to such a base 3. Each blade 2 forms a skirt that is wider on the opposite side (front end side) than the base 3 side (base end side).

  The above-described processing for reinforcing the tip portion of the wing portion 22 and the tip portion of the shaft portion 21 with an adhesive can be performed on the blade 2 before being attached to the pedestal 3, but in this embodiment, the pedestal 3 This is performed on the blade 2 after being attached to. Thereby, the reinforcement area | region 221 of each blade | wing 2 attached to the same stand | base 3 can be set to the same extent efficiently, and the malfunction which may arise when the reinforcement area | region of each blade | wing is uneven, ie, weight is unbalanced. It is possible to avoid the problem of becoming a simple shuttlecock.

  Moreover, although it attaches to the stand 3 so that a part of each blade | wing 2 may overlap with a part of blade | wing 2 arranged in the circumferential direction, in this embodiment, the blade | wings 2 adjacent in the circumferential direction mutually mutually through the reinforcement area | region 221. It is set not to adhere to. Therefore, in the shuttlecock 1 according to the present embodiment, the blades 2 adjacent in the circumferential direction can relatively move toward and away from each other, and can individually move in the radial direction of the table 3.

  The shuttlecock 1 has a circular shape formed by the lower end portions (base end portions) of the blades 2 (a circular shape formed on the surface of the base 3 where the base body 31 is exposed) and the upper ends (tips) of each other. The lower end side region of the shaft portion 21 of each blade 2 is inserted into the table 3 at a predetermined angle so as to be larger than the circular shape formed by (the circular shape of the skirt portion formed by the wing portion 22). At this time, the insertion portion 211 formed in the lower end side region of the shaft portion 21 can easily and smoothly perform the operation of inserting the shaft portion 21 into the table 3 at an arbitrary angle. Moreover, in this embodiment, the predetermined parts (for example, the part which does not overlap with the wing | blade part 22) of the axial part 21 among each artificial feather | wing 2 attached to the stand 3 are connected by the 1 or several string-like member 4 ( (See FIG. 1). In addition to the number of blades 2, the shuttlecock 1 constructed in this way is officially supported by the length, size, and weight of each part corresponding to the competition rules of the Japan Badminton Association and other competition organizations. It will be approved as a shuttlecock.

  Here, the conventional shuttlecock has a problem in that the wings are scattered relatively early while repeatedly hitting with the racket, and the flight characteristics are deteriorated. However, the shuttlecock 1 of the present embodiment has the wings. Since the tip of 22 is reinforced with an adhesive, the tip of the wing 22 is less likely to disperse than in the past even if the racket is repeatedly hit, and the desired flight characteristics are maintained for a longer period than in the conventional product. Can do.

  In addition, the conventional shuttlecock sometimes breaks or breaks from the tip portion relatively quickly while repeatedly hitting with a racket, which is also a factor that deteriorates the expected flight characteristics. However, since the blade 2 of the present embodiment reinforces the tip portion of the shaft portion 21 with an adhesive, the tip portion of the shaft portion 21 can be prevented / suppressed from cracking or tearing when hit with a racket. .

  As described above, the blade 2 according to the present embodiment maintains desired flight characteristics over a longer period than the conventional product by reinforcing the tip portion of the wing portion 22 and the tip portion of the shaft portion 21 with an adhesive. The durability is greatly improved.

  Further, in the shuttlecock 1 according to the present embodiment, since the blades 2 adjacent in the circumferential direction are set so as to be relatively close to each other without bonding, the blades 2 are instantaneous when they are hit by a racket. When the wind pressure is received, each blade 2 individually moves in the radial direction and circumferential direction of the table 3 and the skirt portion formed by the gathering of each blade 2 is appropriately expanded, so that the wind generated at the time of hitting can be appropriately released. it can.

  Moreover, since the shuttlecock 1 of this embodiment is provided with the artificial feather | wing 2 which formed the axial part 21 directly fixed to the stand 3 with the synthetic resin, it is excellent in durability compared with a natural feather | wing, and is stable. Supply is also possible. In addition, since the shuttlecock blade 2 of the present embodiment employs a hollow tubular member 21a as the shaft portion 21, the shaft portion is compared with the case where the shaft portion is configured by a solid member clogged inside. The portion 21 can be prevented from becoming excessively hard, and the same or substantially the same flexibility (elasticity), lightness, and flight characteristics as the natural feather can be obtained. In addition, as the shaft part 21 of the artificial feather 2, for example, a product made of foamed plastic represented by foamed polystyrene (molded into a foamed shape or a porous shape) can be applied. Even if the shaft portion 21 is made of foamed plastic, it can be avoided that the shaft portion 21 becomes excessively hard as compared with the shaft portion that is clogged inside, and it is the same or substantially the same flexibility as the natural feather. And light weight and flight characteristics can be obtained.

  In addition, this invention is not limited to embodiment mentioned above. For example, in the above-described embodiment, the process using an adhesive is exemplified as the bonding process. However, a thermal welding process, an ultrasonic welding process, an impregnation process using an impregnating agent (impregnating liquid), or the like is appropriately selected. It is also possible to adhere a portion of the blade that becomes a reinforcing region by the treatment.

  In the above-described embodiment, the tip of the wing and the tip of the shaft are reinforced by the bonding process. However, the blade may be reinforced only with the tip of the wing with an adhesive.

  Moreover, the reinforcement area | region reinforced by adhesion | attachment process among wing | blades is not restricted to the substantially triangular shape mentioned above, For example, the whole wing | blade part is reinforced by adhesion | attachment process, or the upper half area | region of a wing | blade part is reinforced by adhesion | attachment process. Alternatively, the entire outer edge portion including the tip portion of the wing portion may be formed into a line shape, or a predetermined region including the tip portion of the outer edge portion may be formed into a reinforcement region that is reinforced in a line shape by an adhesion process.

Furthermore, although the shuttlecock mentioned above comprised all the blade | wings with the artificial blade | wing, you may be the shuttlecock which mixed the artificial blade | wing and the natural blade | wing.

  In addition, the specific configuration of each part is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 1 ... Shuttle cock 2 ... Feather 21 ... Shaft part 22 ... Feather part 3 ... Stand

Claims (5)

A blade applied to the shuttlecock and attached to the base,
A shaft portion directly fixed to the base in a state where the base end region is inserted into the base;
And a wing part attached to the tip side region of the shaft part,
At least the tip of the wing is reinforced by an adhesive treatment ,
The shaft part and the wing part are artificial shaft parts and wing parts imitating the shaft part and wing part of a natural feather,
In the upper end side region of the shaft portion, a flat surface cut obliquely at a predetermined angle with respect to the extending direction of the shaft portion is formed, and the wing portion is bonded to the flat surface. Cock feather. The shuttlecock blade according to claim 1, wherein a tip portion of the shaft portion is also reinforced by the adhesion treatment. The wing part is formed by coating a polyurethane or acrylic resin on a sheet-like member made of synthetic fiber or natural fiber, and the adhesion treatment is performed after the shuttlecock blade is attached to the base. The shuttlecock blade according to claim 1 or 2. A base with a semi-spherical bottom,
A shuttlecock comprising a plurality of shuttlecock blades according to any one of claims 1 to 3 attached to a flat upper surface of the table. The shuttlecock according to claim 4, wherein the adjacent shuttlecock blades are not bonded to each other.

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