WO2009074012A1 - Couche de peau de ballon de sport - Google Patents

Couche de peau de ballon de sport Download PDF

Info

Publication number
WO2009074012A1
WO2009074012A1 PCT/CN2008/001943 CN2008001943W WO2009074012A1 WO 2009074012 A1 WO2009074012 A1 WO 2009074012A1 CN 2008001943 W CN2008001943 W CN 2008001943W WO 2009074012 A1 WO2009074012 A1 WO 2009074012A1
Authority
WO
WIPO (PCT)
Prior art keywords
skin layer
regular
sports ball
radius
ball according
Prior art date
Application number
PCT/CN2008/001943
Other languages
English (en)
Chinese (zh)
Inventor
Yung Pun Cheng
Original Assignee
Yung Pun Cheng
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 Yung Pun Cheng filed Critical Yung Pun Cheng
Publication of WO2009074012A1 publication Critical patent/WO2009074012A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B41/00—Hollow inflatable balls
    • A63B41/08—Ball covers; Closures therefor

Definitions

  • the present invention relates to a skin layer of a sports ball, particularly a sewn skin layer of a soccer ball, a handball, a volleyball or the like.
  • a sports ball typically comprises a skin layer, an intermediate layer and a bladder.
  • the skin layer is generally made of natural leather or artificial leather such as polyurethane PU or polyvinyl chloride FVC.
  • the skin layer is generally formed by splicing a plurality of pieces of a predetermined shape.
  • the Chinese patent entitled “Glowing Ball Sports Ball” and the US Patent No. 5,772,245 entitled “Sportsball and Manufacturing Method Thereof” are disclosed in US Patent No. CN1917923A. Wherein the sports ball is 12 pieces of regular pentagon combined pieces and 20 pieces of regular hexagonal combined pieces are stitched together at the edges.
  • U.S. Patent No. 5,772,245 entitled “Sportsball and Manufacturing Method Thereof ⁇ also states that for volleyball, the standard volleyball is stitched together at the edges by 18 rectangular panels.
  • the sports balls produced by the above method are basically polyhedrons because the skin layers are spliced by polygons, that is, they are not precise spherical shapes, which seriously affect the roundness of the sports balls and affect the sports balls.
  • the trajectory and athletic performance such as poor touch and poor ball control; on the other hand, the curvature of the epidermis is uneven, which will cause the ball to be unbalanced when supporting pressure and resisting impact pressure. The extent to which the life of the sports ball is affected.
  • the invention relates to the skin layer of a sports ball, in particular soccer, handball, volleyball or the like
  • the sewn skin layer of the ball is used.
  • the technical problem to be solved is to provide a skin layer of a sports ball whose shape has a better roundness and is closer to an ideal sphere.
  • the present invention provides a skin layer of a sports ball which is spliced into a spherical shape by a plurality of polygonal combination sheets, and a hole for passing a gas nozzle on the skin layer, wherein: each of the polygons Each side of the composite sheet is a convex curved side.
  • the polygonal composite sheet is 12 regular pentagons and 20 regular hexagons.
  • the pentagon composite sheet has a convex curved edge having a radius of curvature of between 180 and 186 mm
  • the hexagonal combined piece has a convex curved edge having a radius of curvature between 175 and 180 awake.
  • Each radius of curvature of a convex curved edge of the sheet is a combination of a regular pentagon 184. 8mm, 47mm distance between two adjacent vertices of; convex radius of curvature of the arcuate edge of each sheet is a combination of regular hexagonal 177. 09mm, The distance between two adjacent vertices is 46 mm.
  • the polygonal composite sheets are stitched together by stitching the two corresponding edges at a certain distance parallel to their convex arc edges. 5 ⁇ The distance is 3.2 to 3. 5 mm.
  • the composite sheet can be spliced into a spherical shape by hand sewing, machine sewing, or the like.
  • the material of the skin layer may be artificial leather or natural leather.
  • the sports ball made by the ball skin provided by the present invention has a good sphericity, is closer to the ideal sphere, has a good feel and a good spherical shape.
  • Figure 1 is an exploded perspective view of a composite sheet in a skin layer of a soccer ball improved in accordance with the present invention.
  • Fig. 2 is a schematic view showing a regular pentagon composite sheet of the present invention.
  • Fig. 3 is a schematic view showing a regular hexagonal composite sheet of the present invention.
  • an embodiment of the present invention is an improved conventional soccer skin layer.
  • the skin layer is formed by splicing a plurality of suitable polygonal combination pieces having convex curved edges, more specifically The description is composed of 32 combined sheets, 12 of which are regular pentagon combined sheets and 20 of which are regular hexagonal combined sheets.
  • the convex curved edge radius R' of the pentagonal combined piece is between 180 and 186 ram, as shown in FIG. 3, the convex curved edge curvature of the hexagonal combined piece
  • the radius R" is between 175 and 180.
  • the radius of curvature of the convex curved side of the regular pentagon combination having a curved edge is about 184.
  • the distance between the adjacent vertices of the regular pentagon is about 47 mm, and the distance between the two vertices of the regular pentagon is calculated to be 76. 01 ⁇ 2m, the radius of the circumcircle of the regular pentagon is 39. 98mm, the positive five sides
  • the tangential distance from the apex to the opposite curved edge is about 73. 82.
  • the radius of curvature of the convex curved edge of the regular hexagonal combined piece having the curved edge R "About 177.
  • the distance a" between adjacent vertices of the regular hexagon is 46mm, from which it can be calculated that the distance D" between the regular hexagons and the two vertices is 92mm, and the radius rt of the circumscribed circle of the regular hexagon is 46imi.
  • the tangential distance L" of the regular hexagon with respect to the curved edge is 82. 67 legs.
  • a hole 8 for passing through the nozzle is provided on a piece of the composite sheet.
  • the polygonal composite sheets 10 and 20 are stitched by a pair of corresponding sides 2, and 2" at a certain distance d (see Figs.
  • the 32-piece combination piece adopts a combination of general sports balls such as soccer balls, and each of the regular pentagon-shaped combination pieces is spliced with five pieces of regular hexagonal combination pieces, and each piece of regular hexagonal combination pieces is surrounded by three pieces of alternating hexagonal pieces.
  • the regular pentagon combination piece and the three regular hexagonal combination pieces are spliced together and finally spliced into a sphere. 5 ⁇ In a specific embodiment, the distance d is about 3.2 to 3. 5 mm.
  • the composite sheet can be spliced into a spherical shape by hand sewing, machine sewing, or the like.
  • the material of the skin layer may be artificial leather or natural leather, so that the sewed sports ball is more round, has a better hand feeling, and has better sports performance and service life.
  • the skin layer of the sports ball may also be a plurality of polygons having a curved side such as a triangle, a quadrangle, and the like, and a combination therebetween is spliced in the above manner.
  • the skin layer of the sports ball can be made of artificial leather (such as polyurethane PU or polyvinyl chloride PVC, etc.) or other materials suitable for making the skin layer of a sports ball.

Abstract

L'invention concerne une couche de peau de ballon de sport comprenant une pluralité de pièces polygonales (10, 20) agencées sous une forme sphérique. Un trou (8) permettant l'insertion d'une valve d'air est formé dans la couche de peau. Chaque bord de chaque pièce polygonale (10, 20) présente une courbure convexe.
PCT/CN2008/001943 2007-12-07 2008-11-28 Couche de peau de ballon de sport WO2009074012A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNU2007201820179U CN201211416Y (zh) 2007-12-07 2007-12-07 运动球的表皮层
CN200720182017.9 2007-12-07

Publications (1)

Publication Number Publication Date
WO2009074012A1 true WO2009074012A1 (fr) 2009-06-18

Family

ID=40495571

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2008/001943 WO2009074012A1 (fr) 2007-12-07 2008-11-28 Couche de peau de ballon de sport

Country Status (2)

Country Link
CN (1) CN201211416Y (fr)
WO (1) WO2009074012A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996009855A1 (fr) * 1994-09-29 1996-04-04 MONTERO, José Enveloppe de balle
DE19905046A1 (de) * 1999-02-05 2000-08-31 Faiz Shah Ball, insbesondere Sportball
CN1077442C (zh) * 1994-10-05 2002-01-09 株式会社宝登 球类比赛用球及其生产方法
US20040053717A1 (en) * 2002-09-12 2004-03-18 Awan Jarrar Hussain Machine stitched soccer balls with floating bladder
CN1706514A (zh) * 2004-06-09 2005-12-14 唐雅芳 竞技用球的内胆及该竞技用球

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996009855A1 (fr) * 1994-09-29 1996-04-04 MONTERO, José Enveloppe de balle
CN1077442C (zh) * 1994-10-05 2002-01-09 株式会社宝登 球类比赛用球及其生产方法
DE19905046A1 (de) * 1999-02-05 2000-08-31 Faiz Shah Ball, insbesondere Sportball
US20040053717A1 (en) * 2002-09-12 2004-03-18 Awan Jarrar Hussain Machine stitched soccer balls with floating bladder
CN1706514A (zh) * 2004-06-09 2005-12-14 唐雅芳 竞技用球的内胆及该竞技用球

Also Published As

Publication number Publication date
CN201211416Y (zh) 2009-03-25

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