CN1227130A

CN1227130A - Shuttlecock

Info

Publication number: CN1227130A
Application number: CN99102169A
Authority: CN
Inventors: 理查德·P·哈丁
Original assignee: Dunlop Slazenger Group Ltd
Current assignee: Dunlop International Group Ltd
Priority date: 1998-02-10
Filing date: 1999-02-09
Publication date: 1999-09-01
Also published as: GB9802818D0; TW358749B; GB2333970A; JPH11267259A

Abstract

A hybrid plastic shuttlecock made of two different types of plastic for improved physical properties. A first type of plastic is used to form a stem assembly (1) having a base (2) to which a cork (12) is attached and from which a plurality of stems (5) extend. The 'feathers' of the shuttlecock are provided by vanes (10) attached to each of the stems, the vanes being formed of a second type of plastic. The stem assembly may be produced by injection moulding, and the vanes by stamping from film material. The same basic material may be used for both the stem assembly and the vanes, different properties being achieved by different processing and/or by reinforcing the stems with fibre.

Description

Shuttlecock

The shuttlecock that is used for badminton consists essentially of and impacts member (or title ' cork ') and be fixed on the flying body that impacts on the member.After impacting shuttlecock, ' flying body ' keeps the direction and the stability of shuttlecock track.Flying body must be light (so that consequent shuttlecock is nose heave), can after distortion, restore rapidly, and must be solid, so that when impacting repeatedly with racket, they can sustain repeatedly distortion.According to convention, imaginary frustum is lip-deep by being assemblied in, the goose feather of process finishing obtains these performances, and diameter that this frustum is less and cork coincide.

Known what is called is synthesized shuttlecock, wherein replace the combination of feather with the plastic products of forming by a series of pinna rachis (pinna rachis that is equivalent to feather) and ' skirt ', skirt is to be fixed on all pinna rachis and the lacery structure of combination with it, so that the accessory pinna that makes up in the imitation shuttlecock.Pinna rachis and accessory pinna form overall structure, this overall structure is made by the injection molded process that adopts suitable plastic material, and these plastics can easily flow into mould, so that restore after keeping appropriate rigidity, toughness and distortion etc. in the performance, the formation complexity, the pinna rachis of combination and lace structure.

Because integrated sub-assembly is injection molding, pinna rachis and accessory pinna both must be with making with a kind of plastics, thereby offering pinna rachis and accessory pinna performance direction must be traded off.It is desirable to, pinna rachis should be stronger than the rigidity that compromise material can provide, and the required flowability of material that is suitable for producing the lacery structure of accessory pinna can not be used the material that is suitable for pinna rachis most.

The present invention is devoted to the problems referred to above and a kind of shuttlecock can be provided, and can be used for different materials pinna rachis and accessory pinna when making this kind shuttlecock.Preferably produce pinna rachis and accessory pinna respectively, assemble then, so that form " hybrid " shuttlecock that has improved physical property and impact characteristic.

According to a first aspect of the invention, provide a kind of shuttlecock, having comprised: impact member; The pinna rachis assembly, this pinna rachis assembly has a pedestal, and from the extended a plurality of pinna rachis of pedestal, wherein impacts member and be fixed on the pedestal; And a plurality of accessory pinnas, each accessory pinna is fixed on the corresponding pinna rachis; Wherein pinna rachis assembly and accessory pinna are all made of plastic, and the pinna rachis assembly is integrally molded, the plastics that are used for the pinna rachis assembly have with the plastics that are used for accessory pinna different performance.

In one embodiment, the plastics that are used for the pinna rachis assembly are stocks different with the plastics of accessory pinna.In another embodiment, use with a kind of stock and make pinna rachis assembly and accessory pinna, but handle, so that give pinna rachis assembly and accessory pinna with different physical properties with diverse ways.

Even more preferably, by the moulded piece of injection molding acquisition pinna rachis assembly, accessory pinna then can be used the plastic tab stamped easily.

Have and various accessory pinna is fixed to method on the pinna rachis: for example bonding, welding, or mechanical means (for example sew up or peg).If desired, can combine these methods.

In a preferred embodiment of the invention, pedestal comprises and being used for impacting standing part and plate-like part that member is fixed thereon, pinna rachis extends with the form of frustum of a cone from this plate-like part, and pinna rachis is connecting by at least one connecting ring on the part of length.Every pinna rachis is preferably on the part of length and is formed with shovel shape part, so that connect with corresponding accessory pinna.

In a further advantageous embodiment, every pinna rachis has groove shape section.

When accessory pinna was assemblied on the pinna rachis, accessory pinna can overlap mutually, in the place of its overlap joint, can connect together accessory pinna, also can not connect together.

Pinna rachis can contain reinforcing fibre, as auxiliary element.

According to a second aspect of the invention, provide a kind of method of producing shuttlecock, it may further comprise the steps: form the pinna rachis assembly by the plastic injected die method, the pinna rachis assembly comprises pedestal and a plurality of pinna rachis that extend from pedestal; Form a plurality of accessory pinnas by the punching press plastic tab; Respectively accessory pinna is connected on the every pinna rachis; And be fixed on the pedestal impacting member.

Therefore, the present invention can use the material manufacturing with different performance respectively with pinna rachis and accessory pinna, and different characteristics is by adopting different stocks or by adopting with a kind of stock and using different production processes to obtain, can optimizing each required characteristic thus.In addition, in order to be easy to assembling, all parts except cork and accessory pinna are processed with an integral body.

Describe the present invention by way of example in detail below in conjunction with accompanying drawing.In the accompanying drawing:

Fig. 1 represent the pinna rachis assembly and will be connected with the pinna rachis assembly impact member;

Fig. 2 represents a plurality of accessory pinnas of overlapping arrangement;

Fig. 3 (a) expression has ' weak point ' pinna rachis of short shovel, and accessory pinna just is fixed on this shovel;

Fig. 3 (b) expression has ' length ' pinna rachis of long shovel, and accessory pinna just is fixed on this shovel; And

Fig. 3 (c) presentation graphs 3 (a) and (b) in the section AA ' of pinna rachis and accessory pinna.

At first referring to Fig. 1, this figure has illustrated pinna rachis assembly 1, and it forms the framework of shuttlecock.This pinna rachis assembly comprises the pedestal 2 with standing part 3, can the member 12 that impacts as cork and so on be fixed thereon as shown in the figure, and the part 4 that is roughly plate-like.Here, " cork " this term had both comprised natural cork, also comprised synthetic cork, and the latter generally is the swelling heat moulding material of suitable mixture of for example ethylene vinyl acetate (ethylene-vinyl-acetate) and so on.

A plurality of pinna rachis 5 extend from plate-like part 4, and every becomes the obtuse angle outward-dipping with pedestal, so that be positioned on the frustum.Pinna rachis 5 connects together by the connecting ring on the part of pinna rachis 56 and 7.Complete shuttlecock impacts the pinna rachis assembly 1 that member 12 and every pinna rachis all have an accessory pinna 10 and forms by being fixed with.Though not clearly expression in the drawings, pinna rachis obviously is with on certain whole periphery that is disposed on pedestal.

In a preferred embodiment, comprise that with the injection molding manufacturing connecting ring and pedestal are at interior pinna rachis assembly (few accessory pinna).Stamp out suitable shape by sheeting and produce accessory pinna separately with suitable thickness and density, and use adhesive, two or more combination is fixed to these accessory pinnas on each pinna rachis of the pinna rachis assembly that injection molding forms in welding or mechanical means or these methods.

As what in Fig. 1, dot, accessory pinna 10 is fixed to the free end of every pinna rachis.Fig. 2 represents to be fixed to three accessory pinnas on the adjacent pinna rachis, as shown in the figure, accessory pinna is assemblied on the pinna rachis, makes them pass through the order overlap joint and overlaps.Periphery at whole shuttlecock is continued such " overlap joint " by other accessory pinna (not shown).Place at the accessory pinna overlap joint can link together accessory pinna or do not connect together.

As shown in Figure 3, on pinna rachis, mould the flat area of one or more being called ' shovel ', so that each accessory pinna is fixed on its pinna rachis.The flat horizontal surface of shovel is towards the outside with respect to the symmetry axis of pinna rachis assembly, thereby can be fixed to accessory pinna on the outer surface of pinna rachis system.

Because pinna rachis and shovel can extend or not extend on the whole length of accessory pinna, pinna rachis and relevant shovel can be short (shovel 8 among Fig. 3 (a)) or long (shovels 9 among Fig. 3 (b)).The section of pinna rachis can be the groove section, for example shown in the middle Reference numeral 11 of the section AA ' of Fig. 3 (c) like that so that produce maximum rigidity with respect to the weight of unit length.

The a series of materials that are applicable to the pinna rachis assembly comprise nylon, polyester (especially polybutyleneterephthalate), and polypropylene and Merlon, and be applicable to that the material of accessory pinna comprises nylon, polyester (especially polyethylene terephthalate) and polypropylene.These mixtures of material and other suitable material also can adopt.

In some cases, can be used to make pinna rachis and accessory pinna to a kind of stock (for example polypropylene) simultaneously, in this case, minute differences on the compound composition and the part different qualities after the essential difference on the production method can obtain to optimize.For example can be being used for pinna rachis and accessory pinna simultaneously with a kind of plastics, but to pinna rachis, these plastics can contain a small amount of reinforcing fibre, for example carbon fiber.In addition, can make the pinna rachis system by injection molding, but this technical process is not suitable for accessory pinna, because accessory pinna needs minimum thickness (about 0.1 millimeter).Can be used for the sheeting of accessory pinna by extruding and/or calender line manufacturing, this thin slice can be an axial orientation in process, can not be axial orientation also.That is to say, can elongate plastic tab along axis in process of production, so that make it to have special directionality by molecules align.Particularly can be biaxial orientation, wherein elongate thin slice along rectangular both direction usually.

Utilizing welding accessory pinna to be fixed under the situation on the pinna rachis, a kind of stock is being used for accessory pinna simultaneously and pinna rachis is favourable, because it helps to obtain good welding.

Summary is got up, and the present invention can provide a kind of usefulness hybrid plastic shuttlecock that two kinds of dissimilar plastics are made, so that obtain improved physical property.Utilize first type plastics to form pinna rachis assembly, wherein have cork to be fixed on the pedestal, and have a plurality of pinna rachis to extend from pedestal with pedestal.Form accessory pinna with second type plastics, by being fixed to " feather " of the accessory pinna formation shuttlecock on the every pinna rachis.Can produce the pinna rachis assembly by injection molding, produce accessory pinna by the punching press sheeting.Available with a kind of stock manufacturing pinna rachis assembly and accessory pinna, obtain different performances by different processing and/or by strengthening pinna rachis with fiber.

Claims

1. shuttlecock comprises:

Impact member;

Pinna rachis assembly with pedestal, the described member that impacts is fixed on the described pedestal, and a plurality of pinna rachis extend from pedestal; And

A plurality of accessory pinnas, each accessory pinna are fixed on the corresponding pinna rachis;

Wherein make pinna rachis assembly and accessory pinna with plastics, the plastics that are used for the pinna rachis assembly have the performance different with the plastics that are used for accessory pinna.

2. shuttlecock as claimed in claim 1, the plastics that wherein are used for the pinna rachis assembly are a kind of stocks different with the accessory pinna material.

3. shuttlecock as claimed in claim 1 wherein being used for pinna rachis assembly and accessory pinna with a kind of stock, but is handled with diverse ways, so that give the pinna rachis assembly physical property different with accessory pinna.

4. shuttlecock as claimed in claim 1, wherein the pinna rachis assembly is the overall structure made from injection molding.

5. shuttlecock as claimed in claim 1 is wherein made accessory pinna by the punching press plastic tab.

6. shuttlecock as claimed in claim 1 wherein is fixed to accessory pinna on the pinna rachis with adhesive.

7. shuttlecock as claimed in claim 1 wherein is fixed to accessory pinna on the pinna rachis by welding.

8. shuttlecock as claimed in claim 1 wherein utilizes mechanical means that accessory pinna is fixed on the pinna rachis.

9. shuttlecock as claimed in claim 1, wherein pedestal comprises and is used for and will impacts the standing part that member is fixed thereon, and the plate-like part, pinna rachis extends with the form of frustum of a cone from described plate-like part, and each pinna rachis is connecting along passing through at least one connecting ring on the part of length.

10. shuttlecock as claimed in claim 1, wherein every pinna rachis is shoveling the shape part along being formed with on the part of its length, so that the fixing accessory pinna corresponding with it.

11. shuttlecock as claimed in claim 1, wherein every pinna rachis has groove shape section.

12. shuttlecock as claimed in claim 1, in the time of wherein on being assembled to pinna rachis, accessory pinna overlaps mutually.

13. shuttlecock as claimed in claim 12 wherein in the place of accessory pinna overlap joint, links together them.

14. shuttlecock as claimed in claim 1, wherein pinna rachis contains the reinforcing fibre as auxiliary element.

15. a method of producing shuttlecock may further comprise the steps:

Form the pinna rachis assembly of a plurality of pinna rachis comprise pedestal and to extend from pedestal by the plastic injected die method;

Form a plurality of accessory pinnas by the punching press plastic tab;

Respectively accessory pinna is fixed on the every pinna rachis; And

Be fixed on the pedestal impacting member.