CN102625724A

CN102625724A - Artificial feather for shuttlecock, badminton shuttle cock, and method for manufacturing the artificial feather and the badminton shuttlecock

Info

Publication number: CN102625724A
Application number: CN2010800372822A
Authority: CN
Inventors: 吉田聪; 小川雅央; 外村隆
Original assignee: Mizuno Corp
Current assignee: Mizuno Corp
Priority date: 2009-08-18
Filing date: 2010-08-05
Publication date: 2012-08-01
Also published as: KR20120043105A; WO2011021512A1; EP2462997A4; EP2462997A1; JP5170459B2; JP2011036591A

Abstract

Provided are: an artificial feather for a shuttlecock, having excellent flight performance and high durability; a badminton shuttle cock; and a method for manufacturing the artificial feather and the badminton shuttlecock. An artificial feather for a shuttlecock is provided with a vane section and a shaft which is connected to the vane section. A cross-section along a plane perpendicular to the direction in which the shaft extends has a cross-like or T-like shape. Thin-walled sections (14) which form the cross-section having the cross-like or T-like shape and have a smaller thickness than the body section (13) are formed integrally with the body section (13) so as to protrude from the side surfaces thereof.

Description

Artificial feather for shuttlecock, shuttlecock for badminton and their manufacturing approach

Technical field

The present invention relates to artificial feather for shuttlecock, shuttlecock for badminton and their manufacturing approach, especially specifically relate to and have the excellent flight characteristics and artificial feather for shuttlecock, shuttlecock for badminton and their manufacturing approach of durability.

Background technology

At present, as shuttlecock for badminton, known have the shuttlecock (natural feather ball) that uses the aquatic bird feather to be used as feather and use the feather that is formed by manual works such as nylon resin manufacturing to be used as the shuttlecock (artificial feather ball) of feather.Time need be spent owing to obtain the natural feather of certain quality, so the natural feather ball is higher than the shuttlecock price of using artificial feather.In addition, because of the variation of the grain situation of the supplier of the feather of aquatic bird and the popular a large amount of processing that cause aquatic bird of bird flu etc. in recent years sharply reduce the quantity delivered of the feather of aquatic bird, thereby the price of natural feather ball is raise gradually.Therefore; Proposed to use the shuttlecock (for example, opening 2008-206970 communique (patent documentation 3)) of the artificial feather of cheapness and stay in grade with reference to real clear 54-136060 communique (patent documentation 1), the real fair 2-29974 communique (patent documentation 2) of Japan Patent and the Japanese Patent Laid opened of Japan Patent.

In patent documentation 1, in order to improve the flight characteristics of artificial feather ball, the structure that disposes the thin-walled sheet with the outstanding mode in side from the axle (cross section in the form of a substantially rectangular axle) of artificial feather is disclosed.In addition; In patent documentation 2; Revolving force when producing shuttlecock flight for the axle of the feather that makes the artificial feather ball, disclose will this axle cross sectional shape be made as the rhombus of distortion and make the structure of the major axis of this rhombus with respect to the circumference inclination of disposing artificial feather.In addition, in patent documentation 3, disclose the artificial feather that makes the artificial feather ball and be in the structure of state that the nonwoven as feather partly is embedded in the inside of axle.

The prior art document

Patent documentation

Patent documentation 1: Japan Patent is opened clear 54-136060 communique in fact

Patent documentation 2: the real fair 2-29974 communique of Japan Patent

Patent documentation 3: Japanese Patent Laid is opened the 2008-206970 communique

Summary of the invention

Invent technical problem to be solved

Yet in the artificial feather ball shown in above-mentioned patent documentation 1～patent documentation 3, with respect to natural feather, the intensity of artificial feather still is inadequate.On the other hand, because the shape shaft of artificial feather applies bigger influence to the flight characteristics (revolving property when particularly flying) of shuttlecock, therefore, need to consider that this flight characteristics decide its shape.In addition, for improving intensity,, then can increase the whole quality of shuttlecock, thereby be difficult on the result, making the flight characteristics of artificial feather ball identical with the flight characteristics of natural feather ball if adopt the such measure of thickness chap of the axle that only makes artificial feather.

The present invention does for solving the problems of the technologies described above, and its purpose is to provide a kind of artificial feather for shuttlecock, shuttlecock for badminton and their manufacturing approach with excellent flight characteristics and higher durability.

The technical scheme that the technical solution problem is adopted

Artificial feather for shuttlecock of the present invention comprises feather portion and the axle that is connected with feather portion.Cross sectional shape on the vertical plane of bearing of trend with axle of axle is crosswise or T word shape.In axle, thickness is more integrally formed with mode and the main part outstanding from the main part side than the thinner wall section of the thin thickness of the main part that constitutes crosswise or T word shape cross sectional shape.

If as stated, then can be made as the gross mass increase that crosswise or T word shape suppress axle through cross sectional shape, and can improve the rigidity of axle axle.In addition, the air drag of the artificial feather through forming thinner wall section with the mode outstanding, can suitably regulate the flight characteristics that is used to control shuttlecock from the main part side of axle.In addition, owing to can make the thin thickness of the thickness of this thinner wall section, therefore, can suppress the increase of the quality of axle than main part.Consequently, can suppress the increase of the quality of artificial feather, and can improve artificial feather axle rigidity and can regulate the air drag of artificial feather, by this, can realize constituting the artificial feather of the excellent artificial feather ball of flight characteristics.

Shuttlecock for badminton of the present invention comprises hemispheric base body and the above-mentioned artificial feather for shuttlecock that is connected with this base body.If as stated, then can realize possessing flight characteristics identical and artificial feather ball with enough durability with the natural feather ball that uses natural feather.

The manufacturing approach of artificial feather for shuttlecock of the present invention comprises an operation of preparing axle and the operation that feather portion and axle are linked together.The operation of preparing axle comprises: preparing to be used for to the cross sectional shape on the plane vertical with the bearing of trend of axle is the operation that the axle of crosswise or T word shape carries out the mould of mould-forming; And through using this mould to carry out the operation that injection molded or injection moulding compression molding form axle.In preparing the operation of mould, in mould, be formed in axle, forming than the thin thickness of the main part of the cross sectional shape that constitutes crosswise or T word shape and from the gap of the outstanding thinner wall section in the side of main part.In the operation that forms axle, form the axle that thinner wall section is given prominence to from the side of main part through carrying out injection molded or injection moulding compression molding.If as stated, then can produce artificial feather for shuttlecock of the present invention.

The manufacturing approach of shuttlecock for badminton of the present invention comprises: the operation of preparing hemispheric base body; Use the manufacturing approach of above-mentioned shuttlecock for badminton to make the operation of artificial feather for shuttlecock; And the operation that artificial feather for shuttlecock is connected with base body.If as stated, then can produce shuttlecock for badminton of the present invention.

The invention effect

According to the present invention, can obtain a kind of artificial feather for shuttlecock and shuttlecock for badminton with excellent flight characteristics and higher durability.

Description of drawings

Fig. 1 is the schematic side view of the embodiment of expression shuttlecock of the present invention.

Fig. 2 is the schematic top plan view of shuttlecock shown in Figure 1.

Fig. 3 is the floor map of expression pie graph 1 and embodiment shuttlecock 1, artificial feather for shuttlecock of the present invention shown in Figure 2.

Fig. 4 is the IV-IV line schematic cross-section of Fig. 3.

Fig. 5 is the V-V line schematic cross-section of Fig. 3.

Fig. 6 is the VI-VI line schematic cross-section of Fig. 3.

Fig. 7 is the schematic partial cross-sectional view of structure of the part that disposes center line of presentation graphs 1 and shuttlecock shown in Figure 2.

Fig. 8 is the flow chart of manufacturing approach that is used for the artificial feather of key diagram 3～shown in Figure 5.

Fig. 9 is the flow chart that is used to explain the formation operation of the axle that constituent material preparatory process (S10) shown in Figure 8 is included.

Figure 10 is the flow chart that is used for the manufacturing approach of key diagram 1 and shuttlecock 1 shown in Figure 2.

Figure 11 is the schematic cross-section of first variation of the artificial feather of the expression embodiment that constitutes shuttlecock of the present invention.

Figure 12 is the schematic cross-section of second variation of the artificial feather of the expression embodiment that constitutes shuttlecock of the present invention.

Figure 13 is the schematic cross-section of the 3rd variation of the artificial feather of the expression embodiment that constitutes shuttlecock of the present invention.

Figure 14 is the schematic cross-section of the 4th variation of the artificial feather of the expression embodiment that constitutes shuttlecock of the present invention.

The specific embodiment

Below, with reference to accompanying drawing embodiment of the present invention is described.In addition, in following accompanying drawing, the identical reference marks of part mark to identical or suitable does not repeat its explanation.

With reference to Fig. 1 and Fig. 2, the embodiment of shuttlecock of the present invention is described.

With reference to Fig. 1 and Fig. 2, the fixing many artificial feather for shuttlecock 3 that link together with surface element that shuttlecock 1 of the present invention is shaped by hemispheric base body 2, with surperficial general planar in the base body 2, be used for fixed to one another fixing of many artificial feathers 3 with the rope form member and the center line 15 that is used to keep the range upon range of state of many artificial feathers 3 constitute.Many (for example 16) artificial feathers 3 base body 2 fixing with surface element in, be configured to circular along this fixing peripheral part with surface element.In addition, many artificial feathers 3 are fixed to one another by the rope form member.Many artificial feathers 3 dispose with the mode that becomes big (internal diameter of the cylindrical portion that is formed by many artificial feathers 3 is along with becoming greatly away from base body 2) along with each other the distance away from base body 2.

Center line 15 usefulness act on the fixed component of the range upon range of state of keeping many artificial feathers 3.That is, dispose this center line 15 with position relation like many artificial feathers of the said regulation in back 3.

Then, with reference to Fig. 3～Fig. 6 the embodiment of artificial feather for shuttlecock of the present invention is described.

With reference to Fig. 3～Fig. 6, the artificial feather 3 of pie graph 1 and shuttlecock 1 shown in Figure 2 is made up of with the axle 7 that is connected with this feather portion 5 feather portion 5.Axle 7 is by constituting with the pinna rachis portion 8 that disposes from the outstanding modes of feather portion 5 and at the affixed axial region 10 that the substantial middle portion of feather portion 5 is connected with feather portion 5.Pinna rachis portion 8 is configured on the same line, extend with affixed axial region 10, constitutes a continuous axle 7 thus.Like Fig. 4 and shown in Figure 5, axle 7 with the bearing of trend approximate vertical direction of axle 7 on cross sectional shape be crosswise.Promptly; Like Fig. 4 and shown in Figure 5; In the cross sectional shape of axle 7, have the thickness on the thicker relatively degree (left and right directions of Fig. 4 (or be the concentrically ringed circumferencial direction at center with center axial region 11)) the above-below direction of heavy wall flank 12a from central shaft portion 11 towards Fig. 4 form highlightedly.

In addition, have relatively than the thickness on the minimal thickness (above-below direction of Fig. 4 (or be the concentrically ringed circumferencial direction at center with center axial region 11)) the left and right directions of thin-walled flank 12b from central shaft portion 11 towards Fig. 4 form highlightedly.Above-mentioned two heavy wall flank 12a form with the mode of extending in the opposite direction respectively from central shaft portion 11.In addition, above-mentioned two thin-walled flank 12b also form with the mode of extending in the opposite direction respectively from central shaft portion 11.Thin-walled flank 12b forms with the mode of direction (being the direction of the quadrature more in detail) extension that the bearing of trend of court and heavy wall flank 12a intersects.Constitute flank 12 by heavy wall flank 12a and thin-walled flank 12b.In addition, constitute the main part 13 of axle 7 by a plurality of flanks 12 and center axial region 11.The cross sectional shape of main part 13 is so-called crosswise.

In addition, be formed with thinner wall section 14 at the peripheral end of thin-walled flank 12b such as Fig. 4 and (promptly with from the outstanding mode of the sidewall of main part 13) shown in Figure 5.The thickness of thinner wall section 14 is thinner than the above-mentioned thickness of thin-walled flank 12b.Thinner wall section 14 is integrally formed with thin-walled flank 12b.In addition, thinner wall section 14 forms with side (side of top among Fig. 4) the roughly conplane mode of formation of its surface with thin-walled flank 12b.For example can the thickness of thinner wall section 14 be made as below the above 0.1mm of 0.03mm, better is that this thickness is made as below the above 0.07mm of 0.04mm.In addition, for example can also width W 1, the W3 of thinner wall section 14 be made as below the above 0.5mm of 0.1mm, better is to be made as below the above 0.3mm of 0.2mm.

Like this, be made as roughly crosswise through the cross sectional shape with the main part 13 of axle 7, the gross mass that can suppress axle 7 increases, and can improve spools 7 rigidity.In addition, the air drag of the artificial feather 3 through forming thinner wall section 14 with the mode outstanding, can suitably regulate the flight characteristics that is used to control shuttlecock 1 from main part 13 sides of axle 7.In addition, because the thickness of this thinner wall section 14 than the thin thickness of main part 13, therefore, can suppress the increase of the quality of axle 7.Consequently, can suppress the increase of the quality of artificial feather 3, the rigidity that can improve the axle 7 of artificial feather 3 also can be regulated the air drag of artificial feather 3, by this, can realize constituting the artificial feather 3 of the excellent shuttlecock 1 of flight characteristics.

Axle 7 width W on the thin-walled flank 12b bearing of trend (left and right directions of Fig. 4) is the summation of width W 3 of width W 1, W2 and the main part 13 of thinner wall section 14.In addition, this width W of axle 7 is bigger than width (highly) T of the axle 7 on the heavy wall flank 12a bearing of trend (above-below direction of Fig. 4).

The width W 1 of the thinner wall section 14 of a side (left side) both can be identical value with the width W 2 of the thinner wall section 14 of opposite side (right side) among Fig. 4, also can be different values.In addition, thinner wall section 14 can be formed at the total length of axle 7, is pinna rachis portion 8 but comparatively it is desirable to be formed at least the part that is exposed to the outside.In addition, thinner wall section 14 can only be formed at a side, also can not be formed at axle 7 total length and local on the bearing of trend of axle 7 (for example at interval) form.

Like Fig. 5 and shown in Figure 6, feather portion 5 is by foaming body layer 92 that disposes with the mode that clips affixed axial region 10 and axle fixed bed 91 and be used for an above-mentioned foaming body layer 92 and axle fixed bed 91

adhesive linkages

93,94 fixed to one another are constituted.That is, in feather portion 5, foaming body layer 92 is range upon range of with the mode of clamping affixed axial region 10 with axle fixed bed 91.In addition, in feather portion 5, for a foaming body layer 92 and an axle fixed bed 91 are connected to each other, and affixed axial region 10 is connected with an above-mentioned foaming body layer 92 and an axle fixed bed 91 fixes, dispose adhesive linkage 93,94.In addition, from different viewpoints, in feather portion 5, foaming body layer 92 laminated that when constituting shuttlecock 1, are positioned at outer circumferential side have adhesive linkage 93.On above-mentioned adhesive linkage 93, dispose affixed axial region 10 with the mode of the substantial middle portion that is positioned at this adhesive linkage 93 and foaming body layer 92.In addition, another adhesive linkage 94 is configured to extend on the adhesive linkage 93 from this affixed axial region 10.In addition, on above-mentioned adhesive linkage 94, dispose a fixed bed 91.

Can know also that from Fig. 6 in artificial feather 3, axle 7 is in towards the crooked state of foaming body layer 92 side (being the outer circumferential side of shuttlecock 1).From different viewpoints, axle 7 is in towards the case of bending of axle fixed bed 91 sides protrusion.In addition; Illustrated among Fig. 6 artificial feather 3 on the bearing of trend of axle 7 towards the bent state of foaming body layer 92 lateral bending, but also can be that the direction of intersecting at the bearing of trend with axle 7 (for example the bearing of trend with axle 7 vertical, be width along the direction on the surface of feather portion 5) goes up feather portion 5 towards the bent state of foaming body layer 92 lateral bending (being the case of bendings that feather portion 5 protrudes towards axle fixed bed 91 sides).At this moment, can occur following two states simultaneously, promptly artificial feather 3 any bending also can only occur at the state crooked on the bearing of trend of axle 7 and the state of feather portion 5 bending on the direction that the bearing of trend with axle 7 intersects as stated.This bending energy through the constituent material etc. of the constituent material of axle 7, feather portion 5 being heat-treated or forming axle 7, feather portion 5 with the state of bending at the very start in the past known method realize.

At this, the material as constituting foaming body layer 92 for example can use foamed resin, more particularly, for example can use polyethylene (poly foaming body).In addition, for axle fixed bed 91, equally also can use foamed resin.In addition, for axle fixed bed 91, except polyethylene for example, can also use any material such as the film that constitutes by resin etc. or nonwoven.

In addition, for

adhesive linkage

93,94, for example can use two-sided tape.In the artificial feather 3 of Fig. 3～shown in Figure 6, use polyethylene as a foaming body layer 92 and an axle fixed bed 91.Comparatively it is desirable to, the extrusion direction of this polyethylene is the direction shown in the arrow 95 among Fig. 3 and Fig. 5.At this moment, fix, therefore, can reduce the incidence of feather portion 5 in this bad situation that on the direction of the bearing of trend of axle 7, ftractures owing to axle 7 is connected with feather portion 5 with the mode of intersecting with the extrusion direction of the polyethylene shown in the arrow 95.

Below, with reference to Fig. 7, the configuration of center line 15 is carried out specifically bright.

As shown in Figure 7; Center line 15 is configured to around the axle 7 of artificial feather 3, and in adjacent artificial feather 3, be in feather portion 5 zones respect to one another (promptly passing between the range upon range of feather portion 5) of passing adjacent artificial feather 3 on the part of feather portion 5 of range upon range of state.Because center line 15 passes between the range upon range of feather portion 5 on the range upon range of part of feather portion 5 as stated; Therefore; The lamination order that can suppress feather portion 5 is changed the generation of (impact that for example, impacts because of racket causes the lamination order of feather portion 5 to be changed) such problem in the use of shuttlecock 1.

Like Fig. 1 and shown in Figure 2, above-mentioned center line 15 is configured to being arranged in circular many artificial feathers 3 all fixed to one another on circumference.In addition, for example can make with pin etc. and make center line 15 form Fig. 1 and configurations shown in Figure 2 through the operator.If as stated,, therefore, can obtain having the shuttlecock 1 of excellent durability owing to suppressed the lamination order of feather portion 5 is changed this problem in the use of shuttlecock 1 generation.

In addition, a side end that begins to make that is configured in the center line 15 on the circumference and the end side that finishes to make are linked, and near knotting, the part of unnecessary line is sheared removal.Comparatively it is desirable to, form protective layer at this place of knotting through coating adhesive etc. and on the surface.Through forming such protective layer, can prevent that this knots when shuttlecock 1 is impacted by racket to untie.

In addition, center line 15 can use any material such as cotton, resin, but comparatively it is desirable to use the line of polyester.In addition, in order the center of gravity of shuttlecock 1 etc. not to be exerted one's influence as far as possible, center line 15 uses light as far as possible line comparatively desirable.For example, can use No. 50 the line of polyester as the line that uses.The quality of the line that uses as center line 15 in this case, is roughly 0.02g.If the quality of this degree though can bring a little influence to the position of centre of gravity of shuttlecock 1, can be thought to almost not influence of flying quality.In addition, about the configuration of center line 15, can at random set apart from the distance of base body 2.

Then, with reference to Fig. 8～Figure 10, Fig. 1 and shuttlecock 1 shown in Figure 2, the manufacturing approach of artificial feather for shuttlecock 3 are described.

At first, with reference to Fig. 8, the manufacturing approach of artificial feather for shuttlecock 3 of the present invention is described.As shown in Figure 8, in the manufacturing approach of artificial feather 3, at first, carry out constituent material preparatory process (S10).In this operation (S10), prepare to constitute axle 7, pie graph 5 and foaming body layer 92 and the flaky material of axle fixed bed 91 and the two-sided tape of formation

adhesive linkage

93,94 shown in Figure 6 of artificial feather 3.In addition, about the flat shape of above-mentioned flat member and two-sided tape,, just can adopt arbitrary shape as long as size is bigger than the size of feather portion 5 shown in Figure 3.As the flat member that forms foaming body layer 92, for example can use the middle thickness of polyethylene (being configured as the poly foaming body of sheet) to be 24g/m as 1.0mm, mass area ratio ²Material.In addition, as the flat member that forms axle fixed bed 91, can use that thickness is 20g/m as 0.5mm, mass area ratio in the polyethylene ²Material.In addition, the mass area ratio of the two-sided tape of formation

adhesive linkage

93,94 can be set at 10g/m ²

In addition, as shown in Figure 9 as the manufacturing process of above-mentioned axle 7, at first carry out mould preparatory process (S11).In this operation (S11), prepare for example to be used for forming the mould of axle 7 through injection molded or injection moulding compression molding.As the mould of preparing,, be formed with the shape corresponding concave part with axle 7 here at die surface respect to one another for example for being divided into the mould of upper die and lower die.In addition, this recess comprises: the part that forms the main part 13 of axle 7; And, be used to form the gap of thinner wall section 14 at this peripheral part that forms the part of main part 13.

Then, form operation (S12).In this operation (S12), at first will be as stated such ready mould place injection molding machine etc. to be used for resin is injected the device (mould is provided with operation) of mould inside (recess).Then, carry out the resin injection process.That is, resin is injected the recess of mould inside from the resin inlet of being located at mould.As resin, for example can use thermoplastic resin.Consequently, can form axle at mould inside.In addition, owing to be formed with the gap that is used to form thinner wall section 14 at the recess of mould as stated, therefore, on the axle 7 that is obtained, be formed with outstanding from the side thinner wall section 14.Like this, form operation (S12).Subsequently, take out axle 7 from mould inside.Consequently, can obtain to constitute the axle 7 of artificial feather 3.

Then, as shown in Figure 8, carry out bonding process (S20).In this operation (S20), on the first type surface of the flat member that will become foaming body layer 92, attach two-sided tape as adhesive linkage 93.Then, the affixed axial region 10 of configuration axle 7 on this two-sided tape.Then, the lamination configuration and fits it as the flat member of axle fixed bed 91 on the face relative with affixed axial region 10 on this basis, and this flat member as axle fixed bed 91 has been pasted with the two-sided tape as adhesive linkage 94.Consequently, can obtain to utilize the structure of affixed axial region 10 to fix of clamping axle 7 as the flat member of foaming body layer 92 with as the flat member of axle fixed bed 91.

Then, carry out postprocessing working procedures (S30).Specifically, will cut off and remove for the part (promptly forming the zone outside the part of feather portion 5) that do not need of the flat member that forms feather portion 5 laminated configuration.Consequently, can obtain like Fig. 3～artificial feather 3 shown in Figure 6.Then, this artificial feather 3 is for example carried out making 92 contraction such as grade of foaming body layer thus from heat treatments such as foaming body layer 92 side heating.Consequently, can realize the state of axle 7 as shown in Figure 6 and 5 bendings of feather portion.In addition, for realizing the state of axle 7 shown in Figure 6 and 5 bendings of feather portion, also can use additive method.For example, can adopt the method for the axle 7 that uses curved shape at the very start.

Then, with reference to Figure 10, the manufacturing approach of Fig. 1 and shuttlecock 1 shown in Figure 2 is described.Shown in figure 10, at first, carry out preparatory process (S100).In this preparatory process (S100), the member of formation of shuttlecocks 1 such as the base body 2 (front end components) of preparation shuttlecock 1 and above-mentioned artificial feather 3.

The manufacturing approach of base body 2 can be used well-known in the past any means, for example can use natural material such as cork as the material that forms base body 2.In addition, but also end user's molding resins etc. as the material of base body 2.During as the material of base body 2, can use well-known in the past any processing method to form base body 2 at end user's molding resins.For example, at first prepare the piece material of the material of formation base body 2, form approximate shape through cut.At this moment, take into account the processing to heavens of hemispherical part of leading section.Then, also can use this method of patchhole that further is formed for supplying artificial feather 3 insertions through cut.In addition, when stating artificial resin in the use, for example can use ionomer resin foaming body or EVA (ethene vinyl acetate resin copolymer), polyurethane, PVC (polyvinyl chloride), polyethylene, polypropylene etc.In addition, can use the manufacturing approach of above-mentioned manufacturing approach shown in Figure 8 as artificial feather 3.

Then, carry out assembling procedure (S200).In this assembling procedure (S200), axle 7 the root of above-mentioned many artificial feathers 3 is inserted the fixing patchhole with surface element that is fixed in base body.In addition, utilize the rope form member should many artificial feathers 3 fixed to one another.In addition, make so that be used to keep the center line 15 of feather portion overlap condition and become configuration shown in Figure 7.Like this, can produce Fig. 1 and shuttlecock 1 shown in Figure 2.As many artificial feathers 3 fixed components fixed to one another are not limited to aforesaid rope form member, for example also can use member arbitrarily such as annular component.

In addition, for example can use resin, fiber etc. arbitrarily material as the material of said fixing member.For example; Also can use following fixed component; This fixed component is through using aramid fibre or glass fibre as the rope form member; Resin (for example thermosetting resin) is immersed in this aramid fibre or the glass fibre, and make this resin solidification, ((Fiberglass Reinforced Plastics: fiberglass)) changes the member that forms to carry out FRP thus.Can improve intensity, the rigidity of fixed component through carrying out FRPization like this.In addition, for example can use epoxy resin, phenolic resins as thermosetting resin.If carry out FRPization as stated and use thermosetting resin, then carry out just utilizing thermosetting resin to come easily to carry out the FRPization of fixed component simultaneously under the situation such as heating process in the processing that is used for fixed component is fixed in axle 7.

With reference to Figure 10～Figure 14, first variation～the 4th variation of the artificial feather of the embodiment that constitutes shuttlecock of the present invention is described.In addition, Figure 10～Figure 14 corresponds respectively to Fig. 4.

Artificial feather with axle shown in Figure 11 adopts the structure identical with the artificial feather of Fig. 3～shown in Figure 63 basically, but the cross sectional shape of the main part 13 of axle 7 difference.Particularly, in the main part 13 of axle 7 shown in Figure 11, two thin-walled flank 12b extend from central shaft portion 11 to left and right direction, and heavy wall flank 12a only extends towards a direction from central shaft portion 11 downsides.Peripheral end at thin-walled flank 12b is formed with thinner wall section 14.Even the cross section according to the main part 13 of this axle is the artificial feather of so-called T word shape, also can obtain the effect identical with the artificial feather of Fig. 3～shown in Figure 63.

Artificial feather with axle shown in Figure 12 has basically the structure identical with artificial feather shown in Figure 11 3, but with from central shaft portion 11 towards above (the vertical direction of court and thin-walled flank 12b bearing of trend towards or with the opposite direction of the heavy wall flank 12a bearing of trend) mode of extending be formed with on protuberance 16 these aspects different.Through forming this protuberance 16 that is contained in flank 12; Ability obtains the identical effect of effect with the artificial feather that uses axle shown in Figure 11, and can go up the further rigidity that improves axle 7 at the above-below direction (heavy wall flank 12a and protuberance 16 bearing of trends) of Figure 12.

Artificial feather with axle shown in Figure 13 has basically the structure identical with the artificial feather of Fig. 3～shown in Figure 63, and the artificial feather of this point and Fig. 3 but width W 1, the W2 of two thinner wall section 14 that are formed at main part 13 both sides of axle 7 differ from one another～shown in Figure 6 is different.Particularly, the width W 1 of the thinner wall section 14 in left side is bigger than the width W 2 of the thinner wall section that is formed at right side among the figure 14 among the figure that is formed at main part 13 of axle 7 shown in Figure 13.If as stated; Then can obtain the effect identical with the artificial feather of Fig. 3～shown in Figure 63; And can in the right side and the left side of axle 7 the poor of air drag be set from center axial region 11 observations of axle, therefore, can make the variation of the air drag pattern of artificial feather become abundant.Therefore, can in the shuttlecock that uses this artificial feather 3, further enlarge the control range of flight characteristics.

Artificial feather with axle shown in Figure 14 has basically the structure identical with the artificial feather of Fig. 3～shown in Figure 63, the artificial feather of but the configuration of two thinner wall section 14 that are formed at main part 13 both sides of axle 7 and Fig. 3～shown in Figure 6 is different.Particularly, the side (the smooth side of the thin-walled flank 12b of Figure 14) that is not configured to thin-walled flank 12b of the thinner wall section 14 that is formed at main part 13 sides of axle 7 shown in Figure 14 constitutes same plane.The thinner wall section 14 of axle shown in Figure 14 is disposed at the position that links to each other across step with the side of above-mentioned thin-walled flank 12b.Even if utilize this structure, also can obtain the effect identical with the artificial feather of Fig. 3～shown in Figure 63.

The part that repeats with an above-mentioned embodiment part is also arranged, but the following characteristic structure that the application is invented is enumerated.

Artificial feather for shuttlecock 3 of the present invention comprises feather portion 5 and the axle 7 that is connected with feather portion 5.The cross sectional shape (for example with reference to Fig. 4) of axle 7 on the plane vertical with bearing of trend is crosswise (with reference to Fig. 4) or T word shape (with reference to Figure 11).Thickness is more integrally formed with mode and the main part 13 given prominence to from the side of main part 13 than the thinner wall section 14 of the thin thickness of the main part 13 that constitutes crosswise or T word shape cross sectional shape in axle 7.

If as stated, then can be made as the gross mass increase that crosswise or T word shape suppress axle 7 through cross sectional shape, and can improve the rigidity of axle 7 axle 7.In addition, the air drag of the artificial feather 3 through forming thinner wall section 14 with the mode outstanding, can suitably regulate the flight characteristics that is used to control shuttlecock 1 from main part 13 sides of axle 7.In addition, because the thickness of this thinner wall section 14 than the thin thickness of main part 13, therefore, can suppress the increase of the quality of axle 7.Consequently, can suppress the increase of the quality of artificial feather 3, the rigidity that can improve the axle 7 of artificial feather 3 also can be regulated the air drag of artificial feather 3, by this, can realize constituting the artificial feather 3 of the excellent artificial feather ball 1 of flight characteristics.

In above-mentioned artificial feather for shuttlecock 3, main part 13 also can comprise center axial region 11 and outstanding a plurality of flanks 12 from the side of this center axial region 11.A plurality of flanks 12 also can comprise heavy wall flank 12a with this thickness relatively thin thin-walled flank 12b thicker relatively with thickness on central shaft portion 11 radially vertical direction toward the outer side in the plane vertical with the bearing of trend of axle 7.Thinner wall section 14 also can form from the circumferential lateral surface of thin-walled flank 12b highlightedly.

In this case, can improve the rigidity of axle 7 on the projected direction of heavy wall flank 12a.In addition, owing to go up the thin-walled flank 12b of the main part 13 of configuration axle 7 in the outstanding directions (left and right directions of Fig. 4) of thinner wall section 14, therefore, the situation of thickness that is contained in all flanks 12 of main part 13 with same increase is compared, and can reduce a quality of spools 7.Therefore, can be in prescribed limit with the quality limitations of axle 7, and can fully increase the width (width W in Fig. 4) of axle 7 on the outstanding direction (direction that thin-walled flank 12b is outstanding) of thinner wall section 14.

In above-mentioned artificial feather for shuttlecock 3, as shown in Figure 4, thinner wall section 14 also can form along the surface of extending diametrically of thin-walled flank 12b outstanding.

In this case, to the such viewpoint of the resistance body of air, can thinner wall section 14 and thin-walled flank 12b be seen as the resistance body of continuous one.In addition, forming under the situation of thinner wall section 14, and comparing with the situation that does not form this thinner wall section 14 along the mode on the above-mentioned surface of thin-walled flank 12b, for example using, mould easily forms the axle 7 with above-mentioned thinner wall section 14.

In above-mentioned artificial feather for shuttlecock 3, also can make bigger than width (the height T among Fig. 4) on the plane vertical along the main part 13 of the projected direction of heavy wall flank 12a along the total width W of the main part 13 of the projected direction of thin-walled flank 12b and thinner wall section 14 with the bearing of trend of axle 7.

In this case; The substantial width W that can will be used to produces the axle 7 of air drag is guaranteed greatlyyer, to increase an air drag of spools 7 going up with the different direction (being the projected direction of thin-walled flank 12b) of the projected direction of heavy wall flank 12a (i.e. the rigidity of axle 7 raise relatively direction).In addition, with use have the diameter that the width W on the projected direction with thin-walled flank 12b equates axle situation with the thickness setting of thin-walled flank 12b is compared for situation about equating with the thickness of above-mentioned heavy wall flank 12a, can suppress a quality increase of spools 7.

In above-mentioned artificial feather for shuttlecock 3, main part 13 also can comprise center axial region 11 and the outstanding a plurality of flanks 12 in side of axial region 11 from above-mentioned center.Shown in Fig. 4, Fig. 5, Figure 11～Figure 13 etc., thinner wall section 14 also can form at least one flank in a plurality of flanks 12 outstanding from upwardly extending surface, central shaft portion 11 footpath toward the outer side.

In this case, give prominence to, can change the substantial width W of axle 7 through making thinner wall section 14 at least one flank from a plurality of flanks 12.Consequently, can suitably regulate the air drag of the artificial feather 3 of the flight characteristics that is used to control shuttlecock 1.

In above-mentioned artificial feather for shuttlecock 3, also can make bigger than width (the height T among Fig. 4) on the plane vertical along the main part 13 of the projected direction of other flank 12 that is not formed with thinner wall section 14 along the total width W of the main part 13 of the projected direction of the thin-walled flank 12b that is formed with thinner wall section 14 and thinner wall section 14 with the bearing of trend of axle 7.

In this case, the substantial width W that can will be used to produces the axle 7 of air drag is guaranteed greatlyyer, goes up the air drag that increases axle 7 with the projected direction (the for example left and right directions of Fig. 4, Figure 11～Figure 13) at the flank that is formed with thinner wall section 14 12.

Shuttlecock for badminton 1 of the present invention comprises hemispheric base body 2 and the above-mentioned artificial feather for shuttlecock 3 that is connected with this base body 2.If as stated, then can realize possessing flight characteristics identical and artificial feather ball 1 with enough durability with the natural feather ball that uses natural feather.

The manufacturing approach of artificial feather for shuttlecock of the present invention comprises an operation (S10, S11, S12) of preparing axle and the operation (S20) that feather portion and axle are linked together.The operation (S10, S11, S12) of preparing axle comprises operation (S11) and operation (S12); Wherein, In above-mentioned operation (S11); It is the mould that the axle of crosswise or T word shape carries out mould-forming that preparation is used for cross sectional shape to the plane vertical with the bearing of trend of axle, in above-mentioned operation (S12), through using this mould to carry out injection molded or the injection moulding compression molding forms axle.In preparing the operation (S11) of mould, in mould, be formed with and be used for forming than the thin thickness of the main part 13 of the cross sectional shape that constitutes crosswises or T word shape and from the gap of the outstanding thinner wall section 14 in the side of main part 13 at axle 7.In the operation (S12) that forms axle, form the axle 7 that thinner wall section 14 is given prominence to from the side of main part 13 through carrying out injection molded or injection moulding compression molding.If as stated, then can produce artificial feather for shuttlecock 3 of the present invention.

The manufacturing approach of shuttlecock for badminton of the present invention comprises: the operation (S100) of preparing hemispheric base body; Use the manufacturing approach of above-mentioned artificial feather for shuttlecock to make the operation (S100) of artificial feather for shuttlecock; And the operation (S200) that artificial feather for shuttlecock is connected with base body.If as stated, then can produce shuttlecock for badminton 1 of the present invention.

Then, in order to confirm the effect of artificial feather for shuttlecock of the present invention and shuttlecock, carried out following experiment.

(experiment content)

Preparation used the embodiment of the invention artificial feather shuttlecock and as these two kinds of shuttlecocks of shuttlecock of comparative example; Utilize pressure fan that air is flowed from the below of cylinder so that the floating rotation of shuttlecock, and use contactless detecting rotational speed device that the rotary speed (rotating speed) of shuttlecock is measured.

(sample of preparation)

The shuttlecock of artificial feather 3 of having prepared use Fig. 3～shown in Figure 6 is as the sample of the embodiment of the invention.The width W 3 (with reference to Fig. 4) of axle 7 the main part 13 of artificial feather 3 is made as 2.5mm; Height T is made as 2.5mm; About the thickness of the central portion (central portion that makes progress from central shaft portion 11 observed footpaths) of heavy wall flank 12a, the thickness of the central portion of the heavy wall flank 12a of Fig. 4 upside is made as 0.8mm, the thickness of the central portion of the heavy wall flank 12a of Fig. 4 downside is made as 0.55mm; The thickness of thin-walled flank 12b is made as 0.4mm, width W 1, the W2 of thinner wall section 14 is made as 0.3mm respectively.In addition, the thickness with thinner wall section 14 is made as 0.05mm.

In addition, the material of the axle fixed bed 91 of the feather portion 5 of formation artificial feather 3 is used polyethylene, thickness is made as 0.5mm, and mass area ratio is made as 20g/m ²In addition, the material of foaming body layer 92 is used polyethylene, thickness is made as 1.0mm, and mass area ratio is made as 24g/m ²In addition, use two-sided tape as adhesive linkage 93,94.As the characteristic of two-sided tape, used thickness is that 10 μ m, mass area ratio are 10g/m ²Such material.In addition, use this artificial feather, the shuttlecock of set-up dirgram 1 and structure shown in Figure 2.

In addition, as the sample of comparative example 1, use from the axle of the employed axle of the sample of the foregoing description same structure the pruned axle of the process finishing after the thinner wall section 14 produce artificial feather 3.Except the axle of process finishing, adopted the identical structure of the artificial feather that uses in the sample with the foregoing description 3.In addition, use as the artificial feather 3 of this comparative example and prepare to have the shuttlecock with the sample same structure of embodiment.

In addition, as the sample of comparative example 2, use the axle of from the employed axle of the sample of the foregoing description, having removed the structure of thinner wall section 14 to prepare artificial feather and shuttlecock.About the axle of preparing here, use with the mould of the axle different structure of the artificial feather of embodiment (promptly, not being formed for the mould of structure in the gap of thinner wall section 14) as the mould that uses in the injection molded.

(result)

About the shuttlecock of each sample, utilize pressure fan to make air moving with the 7m/ second flow from the below of cylinder, make the floating rotation of shuttlecock, and use contactless detecting rotational speed device that the rotating speed of shuttlecock is measured.Measure by each sample and prepare five shuttlecocks, and calculate this mean speed of five.

Consequently, the mean speed of the sample of embodiment is 477rpm.In addition, track of the flight of shuttlecock etc. is also more close with the natural feather ball.

And the mean speed of the sample of comparative example 1 is 317rpm, and the mean speed of the sample of comparative example 2 is 252rpm.In addition, the track the when track when because of differing from of above-mentioned rotating speed the shuttlecock of comparative example being flown flies with the shuttlecock of embodiment is different, and in addition, the track when also flying with the natural feather ball is different.In addition, when rotating speed deficiency 300rpm, shuttlecock is swing awing easily, thereby can observe the unsettled tendency of track when flying.

Warpage etc. does not all take place in all samples in this test, show enough durability.

Consequently, can think that the sample of the embodiment of the invention shows enough durability, and show the flight characteristics more close with the natural feather ball.

This disclosed embodiment have a few and be illustration, not will be understood that it is that the present invention has been made restriction.Scope of the present invention be represent by claims rather than represent by above-mentioned explanation, comprise the meaning that is equal to claims and all changes in the scope.

Utilizability in the industry

The present invention can advantageously be applicable to the shuttlecock for badminton that uses artificial feather, and this shuttlecock has and identical flight characteristics and the durability of shuttlecock for badminton of using the aquatic bird feather.

Symbol description

1 shuttlecock

2 base body

3 artificial feathers

5 feather portions

7

8 pinna rachis portions

10 affixed axial regions

11 center axial regions

12 flanks

12a heavy wall flank

12b thin-walled flank

13 main parts

14 thinner wall section

15 center lines

16 protuberances

91 fixed beds

92 foaming body layers

93,94 adhesive linkages

95 arrows

Claims

1. an artificial feather for shuttlecock is characterized in that, comprising:

Feather portion (5); And

Axle (7), this axle (7) is connected with said feather portion (5),

Cross sectional shape on the vertical plane of the bearing of trend with said axle (7) of said axle (7) is crosswise or T word shape,

Thickness is more integrally formed with mode and the said main part (13) given prominence to from the side of said main part (13) than the thinner wall section (14) of the thin thickness of the main part (13) of the cross sectional shape that constitutes said crosswise or T word shape in the said axle (7).

2. artificial feather for shuttlecock as claimed in claim 1 is characterized in that,

Said main part (13) comprise center axial region (11) and from said center the outstanding a plurality of flanks (12) in side of axial region (11),

Said a plurality of flank (12) is in the plane vertical with the bearing of trend of said axle (7); Comprise the thin-walled flank (12b) that relatively approaches with thicker relatively heavy wall flank (12a) of thickness on said center axial region (11) radially vertical direction toward the outer side and said thickness

Said thinner wall section (14) is outstanding from the circumferential lateral surface of said thin-walled flank (12b).

3. artificial feather for shuttlecock as claimed in claim 2 is characterized in that,

Said thinner wall section (14) is outstanding on upwardly extending surface, said footpath along said thin-walled flank (12b).

4. artificial feather for shuttlecock as claimed in claim 2 is characterized in that,

On the plane vertical, bigger than width along the said main part (13) of the projected direction of said heavy wall flank (12a) along the total width (W) of the said main part (13) of the projected direction of said thin-walled flank (12b) and said thinner wall section (14) with the bearing of trend of said axle (7).

5. artificial feather for shuttlecock as claimed in claim 1 is characterized in that,

At least one flank of said thinner wall section (14) in said a plurality of flanks (12) from said center upwardly extending surface, axial region (11) footpath toward the outer side outstanding.

6. artificial feather for shuttlecock as claimed in claim 5 is characterized in that,

On the plane vertical, bigger than width along the said main part (13) of the projected direction of other flank (12) that is not formed with said thinner wall section (14) along the total width (W) of the said main part (13) of the projected direction of the flank that is formed with said thinner wall section (14) (12) and said thinner wall section (14) with the bearing of trend of said axle (7).

7. a shuttlecock for badminton is characterized in that, comprising:

Hemispheric base body (2); And

The described artificial feather for shuttlecock of claim 1 (3) that is connected with said base body (2).

8. the manufacturing approach of an artificial feather for shuttlecock is characterized in that, comprising:

Prepare the operation (S10, S11, S12) of axle (7); And

The operation (S20) that feather portion is connected with said axle (7),

The operation (S10, S11, S12) of preparing said axle 7 comprising:

Prepare the operation (S11) of mould, preparing to be used for to the cross sectional shape on the plane vertical with the bearing of trend of said axle is the mould that the axle of crosswise or T word shape carries out mould-forming; And

Form the operation (S12) of said axle, through using said mould to carry out injection molded or the injection moulding compression molding forms said axle,

In the operation (S11) of preparing said mould; In said mould, form the gap; This gap is used for forming thickness than the thin thickness of the main part (13) of the cross sectional shape that constitutes said crosswise or T word shape and the thinner wall section (14) of giving prominence to from the side of said main part (13) at said axle (7)

In the operation (S12) that forms said axle, form said thinner wall section (14) from the side of said main part (13) outstanding spool (7) through carrying out said injection molded or injection moulding compression molding.

9. the manufacturing approach of a shuttlecock for badminton is characterized in that, comprising:

Prepare the operation (S100) of hemispheric base body (2);

The manufacturing approach of the described artificial feather for shuttlecock of use claim 8 produces the operation (S100) of artificial feather for shuttlecock (3); And

The operation (S200) that said artificial feather for shuttlecock (3) is connected with said base body (2).