US3831943A - Shuttlecocks - Google Patents

Shuttlecocks Download PDF

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Publication number
US3831943A
US3831943A US00353436A US35343673A US3831943A US 3831943 A US3831943 A US 3831943A US 00353436 A US00353436 A US 00353436A US 35343673 A US35343673 A US 35343673A US 3831943 A US3831943 A US 3831943A
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US
United States
Prior art keywords
skirt
shuttlecock
support member
plastics material
stems
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00353436A
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English (en)
Inventor
F Popplewell
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dunlop Ltd
Original Assignee
Dunlop Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dunlop Ltd filed Critical Dunlop Ltd
Application granted granted Critical
Publication of US3831943A publication Critical patent/US3831943A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B67/00—Sporting games or accessories therefor, not provided for in groups A63B1/00 - A63B65/00
    • A63B67/18—Badminton or similar games with feathered missiles
    • A63B67/183—Feathered missiles
    • A63B67/187—Shuttlecocks
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B67/00—Sporting games or accessories therefor, not provided for in groups A63B1/00 - A63B65/00
    • A63B67/18—Badminton or similar games with feathered missiles
    • A63B67/183—Feathered missiles
    • A63B67/187—Shuttlecocks
    • A63B67/193—Shuttlecocks with all feathers made in one piece

Definitions

  • ABSTRACT Oechsle Assistant Examiner-Paul E. Shapiro Attorney, Agent, or Firm-Stevens, Davis, Miller & Mosher [5 7]
  • ABSTRACT A shuttlecock of moulded plastics material having improved playing qualities has a skirt which includes an imperforate band of plastics material. This band constitutes an intermediate portion lying between perforate upper and lower portions of the skirt, and has a length which is 25-65 percent of the sum of the lengths of the intermediate and lower skirt portions, of which the following is a specification.
  • Shuttlecocks of plastics materials are in common use and have proved very acceptable to the general badminton playing public. However, they have been slow to supplant the traditional feathered shuttlecocks so far as first class players are concerned, who regard as unsatisfactory the sound and feel experienced when the racket strikes a shuttlecock of plastics material.
  • the present invention now provides a shuttlecock of plastics material which is very much more akin to feathered shuttlecocks in at least the respects referred to above.
  • the present invention now provides a shuttlecock having a skirt of moulded plastics material defined by an array of divergent stems extending from a support member which carries a striking cap, said skirt comprising a perforate upper portion adjacent said support member, a perforate lower portion distant from said support member, and an imperforate intermediate portion connecting said upper and lower portions.
  • the imperforate portion referred to above is separated from the wider end of the shuttlecock by the lower skirt portion.
  • the intermediate and lower skirt portions together broadly correspond to the vane area of the feathers used in feathered shuttlecocks. Suitable proportions of the length of the intermediate and lower skirt portions is a matter which can be determined by simple experiment. In general, it has been found ac ceptable for the intermediate skirt portion to have a length about 25 to 65 percent (preferably 40 to 50 percent) of the sum of the lengths of the intermediate and lower skirt portions.
  • the shuttlecock can be of any suitable plastics material. Suitable theremoplastic material is, for example, a nylon or a polyethylene.
  • the shuttlecocks of this invention are conveniently obtained by injection moulding, and in that event the imperforate band can be provided by using a mould design such that the plastics material can flash so as to occupy the area between the stems and ribs in the intermediate skirt portion.
  • the structure of the shuttlecock of the present invention is such that the sound and sensation of feel experienced by the player is very similar to that of a feathered shuttlecock.
  • a further optional feature of the invention is an increase in the angle between opposite sides of the skirt, for example, to an angle in the range 48 to 50. compared with an angle of 45 which is typical or known plastics shuttlecocks.
  • a shuttlecock according to one embodiment of the present invention is illustrated in the accompanying drawings and is of injection-moulded nylon and its striking cap is of cork or of expanded plastics material (e.g. expanded p.v.c.) having properties similar to those of cork.
  • FIGS. 1 and 2 of the drawings show respectively a perspective view and a side elevation of the shuttlecock without its striking cap.
  • FIGS. 3 and 4 show respectively a perspective view and side elevation of the shuttlecock complete with striking cap:
  • FIG. 5 is an enlargement of part of the lower skirt of the shuttlecock showing the arrangements of the constituent stems, ribs and strands and the undulating contour of the skirt;
  • FIG. 6 is a perspective view of the striking cap of the shuttlecock of FIGS. 3 and 4.
  • the shuttlecock has at its narrower end as a support member a collar 10 from one end. of which extends an array of divergent stems 11 which define the outline of a skirt 12 of general conical shape.
  • the stems are of decreasing thickness between the collar and the lower skirt.
  • the skirt 12 consists three portions: the upper skirt portion 13 adjacent the collar 10, the lower skirt portion 14 in the region of the wider end of the shuttlecock and the intermediate skirt portion 15 which connects the upper and lower skirts.
  • the lower skirt has a series of ribs 16 connecting together adjacent stems, and strands 17 running substantially parallel to the stems and connecting together adjacent ribs, so as to form a network of plastics material throughout the lower skirt (FIG. 5).
  • the plastics material forms an imperforate band or foil. substantially impervious to air and having a thickness between the ribs and stems of about 0.003 inch, for example 0.0025 0.0035 inch.
  • the upper skirt in this embodiment, has no plastics material connecting adjacent stems apart from in the area where the stems join the collar.
  • elongated apertures 18 separate adjacent stems.
  • each undulation being formed of first and second surfaces (19, 20) inclined to each other, the first surface 19 of each undulation by reason of greater number and/or width of strands for example, having a greater proportion of its area occupied by moulded material than has the second surface 20 thereof.
  • the length of the skirt that is from where it joins the collar to the lower edge of the lower skirt is about 2% inches.
  • the length of the upper skirt, that is from said junction with the collar to the boundary between the upper and intermediate skirts is about 1 inch
  • the length of the intermediate skirt is about 0.6 to 0.7 inch
  • the length of the lower skirt is correspondingly about 0.9 to 0.8 inch.
  • the length of the intermediate skirt is about 40 47 percent of the sum of the length of the intermediate and lower skirt.
  • the collar at its end remote from its junction with the stems conveniently has a rim, flange, or other enlarged end portion 21 to assist retention of the cap 22 in place on the collar.
  • the cap shown in FIG. 6 has a cylindrical recess 23 which is a push-fit with the rim 21.
  • the cap can contain if necessary, one or more pellets, for example of rubber or plastics material, chosen so as to give the shuttlecock the desired weight.
  • a shuttlecock comprising a support member, a striking cap carried by said support member, and a skirt of molded plastics material defined by an array of divergent stems extending from said support member in a direction away from the striking cap, said skirt comprising a perforate upper portion adjacent said support member, a perforate lower portion distant from said support member, and an imperforate intermediate portion connecting said upper and lower portions, said intermediate portion having a length which is 25 65 percent of the sum of the lengths of the intermediate and lower skirt portions.
  • a shuttlecock according to claim 1 in which the thickness of the plastics material constituting that part of the intermediate portion between the ribs and stems is about 0.003 inch.
  • a shuttlecock according to claim 1 in which the lower skirt has an undulating contour formed by a series of like undulations, each undulation being formed of first and second surfaces inclined to each other, the first surface of each undulation having a greater proportion of its area occupied by moulded material than does the second surface thereof.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Toys (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Stringed Musical Instruments (AREA)
US00353436A 1972-04-29 1973-04-23 Shuttlecocks Expired - Lifetime US3831943A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2002172A GB1386697A (en) 1972-04-29 1972-04-29 Shuttlecocks

Publications (1)

Publication Number Publication Date
US3831943A true US3831943A (en) 1974-08-27

Family

ID=10139053

Family Applications (1)

Application Number Title Priority Date Filing Date
US00353436A Expired - Lifetime US3831943A (en) 1972-04-29 1973-04-23 Shuttlecocks

Country Status (10)

Country Link
US (1) US3831943A (ru)
JP (1) JPS524982B2 (ru)
CA (1) CA967992A (ru)
DE (1) DE2321861C3 (ru)
GB (1) GB1386697A (ru)
HK (1) HK44776A (ru)
MY (1) MY7600225A (ru)
NL (1) NL159886B (ru)
SE (1) SE396699B (ru)
ZA (1) ZA732801B (ru)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3993310A (en) * 1974-03-22 1976-11-23 Dunlop Limited Shuttlecocks
WO1984000306A1 (en) * 1982-07-12 1984-02-02 John Freddy Vetling A shuttlecock
US4509761A (en) * 1983-06-29 1985-04-09 Liu Mau Fan Model shuttlecock
US5421587A (en) * 1994-10-24 1995-06-06 Key Luck Industrial Corporation Shuttlecock
US5853340A (en) * 1995-04-03 1998-12-29 Willis; Gordon Shuttlecocks
US20040166996A1 (en) * 2003-02-20 2004-08-26 Kolda Clint D. Exercise device with an adjustable magnetic resistance arrangement
US20090093323A1 (en) * 2007-10-05 2009-04-09 Mario Caya Golf tee and method of making same
US20100173729A1 (en) * 2006-02-22 2010-07-08 Issei Toyosawa Golf Tee
US20110034277A1 (en) * 2007-08-24 2011-02-10 Brandes Ulrich W Shuttlecock
US20130225339A1 (en) * 2010-08-20 2013-08-29 Yonex Kabushiki Kaisha Artificial feather for shuttlecock, shuttlecock, and method of manufacturing artificial feather for shuttlecock
US9132328B1 (en) 2014-07-18 2015-09-15 Long Daole Shuttlecock type game device
CN109475769A (zh) * 2016-05-09 2019-03-15 尤尼克斯株式会社 羽毛球用人工羽毛及羽毛球
CN109806562A (zh) * 2012-08-11 2019-05-28 安徽三才体育用品有限公司 一种羽毛球的制造方法
US10576346B2 (en) * 2016-05-09 2020-03-03 Yonex Kabushiki Kaisha Artificial shuttlecock feather and shuttlecock

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0003922A1 (fr) * 1978-02-07 1979-09-05 P C U K Produits Chimiques Ugine Kuhlmann Procédé d'obtension d'isophorone incolore et stable
ZA802606B (en) * 1979-05-10 1981-08-26 Dunlop Ltd Shuttlecocks
DE20310037U1 (de) 2003-06-25 2003-09-04 Brandes Ulrich Federball mit Zwischenring
MY188783A (en) * 2017-12-15 2021-12-30 Badminton World Federation Shuttlecock
JP2020124640A (ja) * 2020-05-28 2020-08-20 ヨネックス株式会社 シャトルコック用人工羽根、及び、シャトルコック

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2556029A (en) * 1946-03-07 1951-06-05 Cohan Frank Plastic shuttlecock
GB670147A (en) * 1949-11-30 1952-04-16 Carlton Tyre Saving Co Ltd An improved shuttlecock
GB832198A (en) * 1956-02-16 1960-04-06 Robert John Nash Shuttlecocks
GB908684A (en) * 1958-02-03 1962-10-24 Carlton Tyre Saving Co Ltd An improved shuttlecock and skirt structure therefor
GB1103364A (en) * 1966-10-04 1968-02-14 Carlton Tyre Saving Co Ltd Improvements in or relating to shuttlecocks

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2556029A (en) * 1946-03-07 1951-06-05 Cohan Frank Plastic shuttlecock
GB670147A (en) * 1949-11-30 1952-04-16 Carlton Tyre Saving Co Ltd An improved shuttlecock
GB832198A (en) * 1956-02-16 1960-04-06 Robert John Nash Shuttlecocks
GB908684A (en) * 1958-02-03 1962-10-24 Carlton Tyre Saving Co Ltd An improved shuttlecock and skirt structure therefor
GB1103364A (en) * 1966-10-04 1968-02-14 Carlton Tyre Saving Co Ltd Improvements in or relating to shuttlecocks

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3993310A (en) * 1974-03-22 1976-11-23 Dunlop Limited Shuttlecocks
WO1984000306A1 (en) * 1982-07-12 1984-02-02 John Freddy Vetling A shuttlecock
US4509761A (en) * 1983-06-29 1985-04-09 Liu Mau Fan Model shuttlecock
US5421587A (en) * 1994-10-24 1995-06-06 Key Luck Industrial Corporation Shuttlecock
US5853340A (en) * 1995-04-03 1998-12-29 Willis; Gordon Shuttlecocks
US20040166996A1 (en) * 2003-02-20 2004-08-26 Kolda Clint D. Exercise device with an adjustable magnetic resistance arrangement
US7901303B2 (en) * 2006-02-22 2011-03-08 Daiya Corporation Golf tee
US20100173729A1 (en) * 2006-02-22 2010-07-08 Issei Toyosawa Golf Tee
US20110034277A1 (en) * 2007-08-24 2011-02-10 Brandes Ulrich W Shuttlecock
US7951018B2 (en) * 2007-10-05 2011-05-31 Mario Caya Golf tee and method of making same
US20090093323A1 (en) * 2007-10-05 2009-04-09 Mario Caya Golf tee and method of making same
US20130225339A1 (en) * 2010-08-20 2013-08-29 Yonex Kabushiki Kaisha Artificial feather for shuttlecock, shuttlecock, and method of manufacturing artificial feather for shuttlecock
US8992355B2 (en) * 2010-08-20 2015-03-31 Yonex Kabushiki Kaisha Artificial feather for shuttlecock, shuttlecock, and method of manufacturing artificial feather for shuttlecock
CN109806562A (zh) * 2012-08-11 2019-05-28 安徽三才体育用品有限公司 一种羽毛球的制造方法
US9132328B1 (en) 2014-07-18 2015-09-15 Long Daole Shuttlecock type game device
CN109475769A (zh) * 2016-05-09 2019-03-15 尤尼克斯株式会社 羽毛球用人工羽毛及羽毛球
EP3456393A4 (en) * 2016-05-09 2019-12-25 Yonex Kabushiki Kaisha ARTIFICIAL FEATHERS FOR STEERING WHEEL AND STEERING WHEEL
US10576346B2 (en) * 2016-05-09 2020-03-03 Yonex Kabushiki Kaisha Artificial shuttlecock feather and shuttlecock
US20200206596A1 (en) * 2016-05-09 2020-07-02 Yonex Kabushiki Kaisha Artificial shuttlecock feather and shuttlecock
US10786718B2 (en) * 2016-05-09 2020-09-29 Yonex Kabushiki Kaisha Artificial shuttlecock feather and shuttlecock
US10857440B2 (en) * 2016-05-09 2020-12-08 Yonex Kabushiki Kaisha Artificial shuttlecock feather and shuttlecock
TWI713740B (zh) * 2016-05-09 2020-12-21 日商優乃克股份有限公司 用於羽毛球之人造羽毛，及羽毛球

Also Published As

Publication number Publication date
DE2321861B2 (de) 1977-08-11
SE396699B (sv) 1977-10-03
MY7600225A (en) 1976-12-31
GB1386697A (en) 1975-03-12
NL7305930A (ru) 1973-10-31
HK44776A (en) 1976-07-23
CA967992A (en) 1975-05-20
ZA732801B (en) 1974-04-24
JPS524982B2 (ru) 1977-02-08
DE2321861C3 (de) 1978-04-06
DE2321861A1 (de) 1973-11-08
NL159886B (nl) 1979-04-17
AU5496373A (en) 1974-10-31
JPS4948424A (ru) 1974-05-10

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