US20140011615A1 - Stringing means for a badminton racket - Google Patents

Stringing means for a badminton racket Download PDF

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Publication number
US20140011615A1
US20140011615A1 US13/591,621 US201213591621A US2014011615A1 US 20140011615 A1 US20140011615 A1 US 20140011615A1 US 201213591621 A US201213591621 A US 201213591621A US 2014011615 A1 US2014011615 A1 US 2014011615A1
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US
United States
Prior art keywords
string
guiding
holes
stringing means
head
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.)
Abandoned
Application number
US13/591,621
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English (en)
Inventor
Jung-Shih Chang
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of US20140011615A1 publication Critical patent/US20140011615A1/en
Abandoned 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
    • A63B49/00—Stringed rackets, e.g. for tennis
    • A63B49/02—Frames
    • A63B49/03—Frames characterised by throat sections, i.e. sections or elements between the head and the shaft
    • A63B49/032—T-shaped connection elements
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B49/00—Stringed rackets, e.g. for tennis
    • A63B49/02—Frames
    • A63B49/022—String guides on frames, e.g. grommets
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B49/00—Stringed rackets, e.g. for tennis
    • A63B49/02—Frames
    • A63B49/035—Frames with easily dismountable parts, e.g. heads, shafts or grips
    • 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
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2102/00—Application of clubs, bats, rackets or the like to the sporting activity ; particular sports involving the use of balls and clubs, bats, rackets, or the like
    • A63B2102/04—Badminton
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
    • A63B60/50—Details or accessories of golf clubs, bats, rackets or the like with through-holes

Definitions

  • the present invention relates to badminton rackets and particularly to a stringing means for a badminton racket.
  • badminton rackets typically include a hoop-shaped head and a shaft downwardly and outwardly extending from the head.
  • the shaft usually includes a handle attached to the proximal end thereof.
  • the handle generally is covered by a grip.
  • the head of such prior art badminton rackets normally is constructed to have a longitudinal axis, a transverse axis and a set of string holes to be threaded through by tensioned strings to form a stringed hitting surface with a sweet zone.
  • the string holes are usually arranged in two groups.
  • a first or longitudinal group of string holes are disposed on the upper and lower portions of the head and each longitudinal string hole has an axis parallel to the longitudinal axis of the head so that the stringed hitting surface includes a plurality of longitudinal string chords which thread through the longitudinal string holes and extend in parallel with the longitudinal axis of the head.
  • a second or transverse group of string holes are disposed on the right and left portions of the head and each transverse string hole has an axis parallel to the transverse axis of the head to construct a plurality of transverse string chords extending in parallel with the transverse axis of the head.
  • the head usually connects with the shaft at a single region as opposed to two or more areas commonly used with tennis racquets. This single connection region is hereinafter referred to as throat.
  • the throat is formed as an area that stress concentrates.
  • the badminton racket impacts a shuttlecock, the head and shaft will place a large amount of stress on the throat. As a result, it is not uncommon for badminton rackets to prematurely fail at the throat.
  • the present invention provides a stringing means for a badminton racket wherein the racket includes a hoop-shaped head with a longitudinal axis, a shaft and a throat connecting the shaft to the head along the longitudinal axis thereof.
  • the head of the racket defines a stringed hitting surface with a sweet zone.
  • the stringing means is disposed on the throat of the racket and constructed in such a way that portions of the string chords for forming the sweet zone of the stringed hitting surface can thread through the means and extend in parallel with the longitudinal axis of the head.
  • a badminton racket comprises a hoop-shaped head with a longitudinal axis, a shaft and a throat connecting the head and the shaft along the longitudinal axis of the head.
  • the head has an inner surface, an outer surfaces and a plurality of string holes disposed between the inner and outer surfaces to be threaded through by a tensioned string to form a stringed hitting surface with a sweet zone.
  • the racket further comprises a stringing means disposed on the throat and constructed in such a way that portions of string chords for forming the sweet zone of the stringed hitting surface can thread through the means and extend in parallel with the longitudinal axis of the head.
  • a stringing means is integrally formed with the throat of a badminton racket.
  • the stringing means comprises at least two guiding holes spaced apart in a predetermined distance and a guiding channel.
  • Each of the guiding holes includes an opened outer end to be as a string inlet, and an inner end connected with the guiding channel.
  • a stringing means comprises a body provided for being mounted on the throat of the badminton racket.
  • the means further comprises at least two guiding holes and a guiding channel.
  • the guiding holes are disposed on the body and spaced apart in a predetermined distance.
  • Each of the guiding holes includes an opened outer end to be as a string inlet and an inner end.
  • the guiding channel is also disposed on the body and connected with the inner end of each of the guiding holes.
  • FIG. 1 is a front perspective view of a badminton racket with a stringing means according to a first preferred embodiment of the present invention
  • FIG. 2 is a merged drawing combined with an enlarged view of the upper portion of the head of the badminton racket of FIG. 1 and a cross-sectional view of the throat of the badminton racket of FIG. 1 taken along line 2 - 2 of FIG. 1 ;
  • FIG. 3 is a cross-sectional view of the throat of a badminton racket with a stringing means in accordance with a second preferred embodiment of the present invention
  • FIG. 4 is an enlarged view of the throat of a badminton racket on which a stringing means in accordance with a third preferred embodiment of the present invention is secured;
  • FIG. 5 is a perspective view of the stringing means shown in FIG. 4 ;
  • FIG. 6 is a cross-sectional view taken along line 6 - 6 of FIG. 4 .
  • Racket 10 includes a hoop-shaped head 12 , a shaft 14 and a handle 16 .
  • Hoop-shaped head 12 has a longitudinal axis X-X′, a transverse axis Y-Y′, an inner surface 122 and an outer surfaces 124 .
  • Shaft 14 extends along axis X-X′ and has a proximate end connected to the bottom portion of head 12 by a throat 24 .
  • Connected to a distal end of shaft 14 is handle 16 .
  • head 12 , throat 24 and shaft 14 is made integrally of lightweight materials, such as aluminum alloy, FRP etc. Therefore, the upper surface 242 of throat 24 is also a portion of inner surface 122 of head 12 .
  • a string 100 tensionedly threads through string holes 18 , 20 to form a stringed hitting surface 22 with a sweet zone 222 .
  • Badminton racket 10 further comprises a stringing means 30 disposed on throat 24 .
  • stringing means 30 integrally formed with throat 24 and includes two guiding holes 32 , 34 spaced apart in a predetermined distance and a guiding channel 36 with a curved bearing surface 362 .
  • Each of guiding holes 32 , 34 has an opened outer end 322 , 324 to be as a string inlet and an inner end connected with guiding channel 36 .
  • each of guiding holes 32 , 34 corresponds respectively to one of top string holes 201 , 202 disposed on the upper portion of head 12 .
  • the distance D between guiding holes 32 , 34 is equal to the distance D′ between top string holes 201 , 202 so that guiding hole 32 and top string hole 201 have a first common axis and guiding hole 34 and top string hole 202 have a second common axis.
  • string 100 coming from top string hole 201 will extend in parallel with longitudinal axis X-X′ of head 12 , then enter into guiding hole 32 from opened end 322 , form a loop 102 received on curved bearing surface 362 , pass out from opened end 324 of guiding hole 34 , extend in parallel with longitudinal axis X-X′ of head 12 and lastly thread through top string hole 202 .
  • the two major longitudinal string chords of sweet zone 222 of stringed hitting surface 22 extend in parallel with longitudinal axis X-X′ of head 12 rather than extend at an angle therewith.
  • the result is that the friction between each of the two major longitudinal string chords of sweet zone 222 and the inner wall of each of the string holes through which the major longitudinal string chord of sweet zone 222 threads is effectively reduced.
  • a stringing means 40 is also formed integrally with the throat of a badminton racket.
  • Stringing means 40 is substantially the same as stringing means 30 described above.
  • the difference between stringing means 40 and stringing means 30 is that curved bearing surface 422 of guiding channel 42 of stringing means 40 has a pair of suspending portion 424 , 426 disposed respectively on opposing longitudinal ends thereof.
  • each of suspending portions 424 , 426 is a projecting area facing to guiding holes 44 , 46 .
  • FIGS. 4-6 show a further alternative stringing means 50 embodied according to the present invention.
  • stringing means 50 is an independent device secured on throat 82 of badminton racket 80 .
  • Stringing means 50 includes a block body 51 made of lightweight materials, such as FRP, aluminum, titanium or other metallic alloys. Block body 51 has a top surface 52 , a bottom surface 54 and side surface 56 , 58 .
  • Stringing means 50 further includes a pair of guiding holes 60 , 62 and a guiding channel 64 .
  • Guiding holes 60 , 62 is disposed on body 51 and spaced apart in a distance “d” and extend from top surface 52 to bottom surface 58 .
  • the distance “d” is equal to the distance of a pair of upper string holes (not shown in the drawings) of badminton racket 80 to which guiding holes 60 , 62 correspond.
  • Guiding channel 64 is also disposed on body 51 and has a pair of opposing open ends connected respectively with each of guiding holes 60 , 62 .
  • stringing means 50 is secured on top surface 822 of throat 82 of badminton racket 80 by two screws 70 , 72 screwing into a pair of through holes 66 , 68 disposed on body 51 .
  • Each of guiding holes 60 , 62 preferably has an opened side 602 , 622 so that an U-shaped stringing channel can be formed on body 51 for being easily threaded through.
  • badminton racket 80 When badminton racket 80 is constructed to have stringing means 50 secured on throat 82 thereof, as shown in FIG. 6 , string 100 coming from top string hole will extend in parallel with longitudinal axis of the head of the racket to enter into guiding hole 60 from opened end 602 , then form a loop 102 received on curved bearing surface 642 , and then pass out from opened end 622 of guiding hole 62 , lastly extend in parallel with longitudinal to the top string hole.
  • the two major longitudinal string chords located on the sweet zone of the stringed hitting surface of the badminton racket 80 will extend in parallel with the longitudinal axis of the head of the racket 80 rather than extend at an angle therewith. Therefore, the objects or advantages of the present invention are achieved.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Pulmonology (AREA)
  • Wire Processing (AREA)
  • Toys (AREA)
US13/591,621 2012-07-05 2012-08-22 Stringing means for a badminton racket Abandoned US20140011615A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TW101124264A TW201402174A (zh) 2012-07-05 2012-07-05 羽毛球拍喉部穿線機構
TW101124264 2012-07-05

Publications (1)

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US20140011615A1 true US20140011615A1 (en) 2014-01-09

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
US13/591,621 Abandoned US20140011615A1 (en) 2012-07-05 2012-08-22 Stringing means for a badminton racket

Country Status (3)

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US (1) US20140011615A1 (zh)
CN (1) CN103520890A (zh)
TW (1) TW201402174A (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130274038A1 (en) * 2012-04-16 2013-10-17 Jung-Shih Chang Stringing device for sports racket
CN112891874A (zh) * 2021-01-22 2021-06-04 南阳师范学院 一种训练网球拍

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1893267A (en) * 1931-10-14 1933-01-03 Harold W Roberts Racket stringing vise
US2262110A (en) * 1940-06-14 1941-11-11 Mineck Paul Racket stringing device
US3988022A (en) * 1975-06-04 1976-10-26 Tennis Machines, Inc. Racket stringing machine
US4033582A (en) * 1974-02-28 1977-07-05 Linden Gaylord C Method of stringing rackets
US4172595A (en) * 1978-04-10 1979-10-30 Sewell J Terry Tennis tally
US4575084A (en) * 1983-12-16 1986-03-11 Yonex Kabushiki Kaisha Badminton racket having novel throat connection
US5863267A (en) * 1997-12-24 1999-01-26 Choi; In Y. Racket device and associated method of stringing a racket

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1893267A (en) * 1931-10-14 1933-01-03 Harold W Roberts Racket stringing vise
US2262110A (en) * 1940-06-14 1941-11-11 Mineck Paul Racket stringing device
US4033582A (en) * 1974-02-28 1977-07-05 Linden Gaylord C Method of stringing rackets
US3988022A (en) * 1975-06-04 1976-10-26 Tennis Machines, Inc. Racket stringing machine
US4172595A (en) * 1978-04-10 1979-10-30 Sewell J Terry Tennis tally
US4575084A (en) * 1983-12-16 1986-03-11 Yonex Kabushiki Kaisha Badminton racket having novel throat connection
US5863267A (en) * 1997-12-24 1999-01-26 Choi; In Y. Racket device and associated method of stringing a racket

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130274038A1 (en) * 2012-04-16 2013-10-17 Jung-Shih Chang Stringing device for sports racket
CN112891874A (zh) * 2021-01-22 2021-06-04 南阳师范学院 一种训练网球拍

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Publication number Publication date
CN103520890A (zh) 2014-01-22
TW201402174A (zh) 2014-01-16

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