EP4173679A1 - Padel-schläger - Google Patents
Padel-schläger Download PDFInfo
- Publication number
- EP4173679A1 EP4173679A1 EP22204170.9A EP22204170A EP4173679A1 EP 4173679 A1 EP4173679 A1 EP 4173679A1 EP 22204170 A EP22204170 A EP 22204170A EP 4173679 A1 EP4173679 A1 EP 4173679A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bat
- padel
- angle
- less
- fiber
- 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.)
- Pending
Links
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- 239000004744 fabric Substances 0.000 claims abstract description 46
- 238000003491 array Methods 0.000 claims description 31
- 229920005989 resin Polymers 0.000 claims description 19
- 239000011347 resin Substances 0.000 claims description 19
- 239000011159 matrix material Substances 0.000 claims description 6
- 239000006260 foam Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 description 8
- 239000004743 Polypropylene Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 239000012783 reinforcing fiber Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 239000003822 epoxy resin Substances 0.000 description 4
- 229920000647 polyepoxide Polymers 0.000 description 4
- XQUPVDVFXZDTLT-UHFFFAOYSA-N 1-[4-[[4-(2,5-dioxopyrrol-1-yl)phenyl]methyl]phenyl]pyrrole-2,5-dione Chemical compound O=C1C=CC(=O)N1C(C=C1)=CC=C1CC1=CC=C(N2C(C=CC2=O)=O)C=C1 XQUPVDVFXZDTLT-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 239000004696 Poly ether ether ketone Substances 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 239000004695 Polyether sulfone Substances 0.000 description 2
- 239000004697 Polyetherimide Substances 0.000 description 2
- 239000004734 Polyphenylene sulfide Substances 0.000 description 2
- 229920006231 aramid fiber Polymers 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- 229920003192 poly(bis maleimide) Polymers 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920006393 polyether sulfone Polymers 0.000 description 2
- 229920002530 polyetherether ketone Polymers 0.000 description 2
- 229920001601 polyetherimide Polymers 0.000 description 2
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- 229920000069 polyphenylene sulfide Polymers 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 241000288673 Chiroptera Species 0.000 description 1
- 229920005601 base polymer Polymers 0.000 description 1
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Images
Classifications
-
- 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
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B59/00—Bats, rackets, or the like, not covered by groups A63B49/00 - A63B57/00
- A63B59/40—Rackets or the like with flat striking surfaces for hitting a ball in the air, e.g. for table tennis
- A63B59/48—Rackets or the like with flat striking surfaces for hitting a ball in the air, e.g. for table tennis with perforated surfaces
-
- 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
- A63B2102/08—Paddle tennis, padel tennis or platform tennis
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2209/00—Characteristics of used materials
- A63B2209/02—Characteristics of used materials with reinforcing fibres, e.g. carbon, polyamide fibres
- A63B2209/023—Long, oriented fibres, e.g. wound filaments, woven fabrics, mats
Definitions
- the present specification discloses a bat used for padel.
- the bat has a head and a handle.
- the head has a core that is a foamed body, and face fabric adhered to the core. Furthermore, the head has a plurality of holes. Each hole is formed so as to penetrate through the core and the face fabric. The holes can contribute to reduction of air resistance when the bat is swung.
- US Patent Application Publication No. 2015/0024879 discloses an example of a padel bat.
- the face fabric includes warp fibers and weft fibers.
- the head is not round. Therefore, in a padel bat in which the warp fiber direction coincides with the axis of the head, the average length of the warp fibers and the average length of the weft fibers are different from each other. When a ball is hit by the padel bat, deformation of the warp fibers and deformation of the weft fibers are not uniform with each other. The face fabric is easily broken.
- the holes penetrate through the head.
- the fibers are divided by the holes. Therefore, the holes reduce stiffness of the head.
- the inventors of the present invention intend to provide a padel bat having excellent durability and stiffness.
- a preferable padel bat has a head and a handle.
- the head has a frame, a core plate disposed inside the frame, a front face fabric joined to a surface, on a front side, of the core plate, and a rear face fabric joined to a surface, on a rear side, of the core plate.
- Each face fabric has a first fiber inclined in a first direction relative to an axial direction of the head, and a second fiber inclined in a second direction relative to the axial direction.
- the head includes a plurality of holes each extending through the front face fabric and reaching the rear face fabric.
- the head includes a first array that is formed of the holes and inclined in the first direction relative to the axial direction, and a second array that is formed of the holes and inclined in the second direction relative to the axial direction.
- a direction of the first fiber and a direction of the first array substantially coincide with each other.
- a direction of the second fiber and a direction of the second array substantially coincide with each other.
- the padel bat is not easily broken due to hitting of a ball. Furthermore, the padel bat allows a player to stably swing the bat.
- FIGS. 1 and 2 show a padel bat 2.
- the bat 2 has a handle 4 and a head 6.
- AX represents the axis of the bat 2.
- an arrow X represents the width direction of the bat 2
- an arrow Y represents the axial direction of the bat 2
- the Z direction represents the thickness direction of the bat 2.
- the handle 4 has a pair of arms 8, a shank 10, and a grip 12. Each arm 8 is disposed between the head 6 and the shank 10.
- the arm 8 is hollow.
- a material of the arm 8 is typically fiber-reinforced resin. In the present embodiment, the material of the arm 8 is the same as a material of a frame described below.
- the arm 8 may have a solid structure.
- the shank 10 extends from the arms 8.
- the shank 10 is hollow.
- a material of the shank 10 is typically fiber-reinforced resin.
- the material of the shank 10 is the same as the material of the frame described below.
- the shank 10 may have a solid structure.
- the grip 12 is formed by winding a tape around the shank 10.
- the grip 12 inhibits slippage between a hand of a player and the bat 2 when the padel bat 2 is swung.
- FIG. 3 is a cross-sectional view taken along a line III-III in FIG. 1 .
- FIG. 4 is a cross-sectional view taken along a line IV-IV in FIG. 1 .
- the head 6 has a frame 14, a core plate 16, a front face fabric 18a, and a rear face fabric 18b.
- the head 6 further includes a plurality of holes 20.
- the head 6 has a shape symmetric about the axis AX.
- the frame 14 extends from the arms 8.
- the frame 14 and the pair of the arms 8 form a loop.
- the frame 14 is hollow.
- a material of the frame 14 is fiber-reinforced resin.
- the fiber-reinforced resin has a resin matrix and multiple reinforcing fibers.
- the frame 14 includes a plurality of fiber-reinforced layers.
- base resin of the frame 14 examples include: thermosetting resins such as epoxy resin, bismaleimide resin, polyimide, and phenol resin; and thermoplastic resins such as polyether ether ketone, polyether sulfone, polyetherimide, polyphenylene sulfide, polyamide, and polypropylene. Resin that is particularly suitable for the frame 14 is epoxy resin.
- Examples of the reinforcing fiber of the frame 14 include carbon fiber, metal fiber, glass fiber, and aramid fiber. Fiber that is particularly suitable for the frame 14 is carbon long fiber. A plurality of kinds of fibers may be used in combination.
- the core plate 16 is disposed inside the frame 14.
- the core plate 16 is partially surrounded by the frame 14.
- the core plate 16 is a polymer molded product.
- the core plate 16 includes multiple pieces of foam.
- the core plate 16 is a foamed body.
- the core plate 16 preferably includes multiple independent pieces of foam.
- a base polymer of the core plate 16 is preferably ethylene-vinyl acetate copolymer (EVA).
- the front face fabric 18a is mainly disposed on the front side (upper side in FIG. 4 ) of the core plate 16. A portion near the edge of the front face fabric 18a reaches the outer peripheral surface of the frame 14. In the present embodiment, the front face fabric 18a is joined to a surface 22, on the front side, of the core plate 16.
- the rear face fabric 18b is mainly disposed on the rear side (lower side in FIG. 4 ) of the core plate 16. A portion near the edge of the rear face fabric 18b reaches the outer peripheral surface of the frame 14. In the present embodiment, the rear face fabric 18b is joined to a surface 24, on the rear side, of the core plate 16.
- the rear side may not be distinguished from the front side. Therefore, the specifications of the rear face fabric 18b and the specifications of the front face fabric 18a are equivalent to each other.
- the rear face fabric 18b may have specifications different from the specifications of the front face fabric 18a.
- a material of each face fabric 18 is fiber-reinforced resin.
- a ribbon is used for the face fabric 18.
- FIG. 5 is an enlarged perspective view of a part of a ribbon 26.
- the ribbon 26 has a resin matrix 28, and a plurality of reinforcing fibers 30 aligned with each other. Positive fiber or second fiber described below is obtained from the reinforcing fiber 30.
- base resin of the ribbon 26 examples include: thermosetting resins such as epoxy resin, bismaleimide resin, polyimide, and phenol resin; and thermoplastic resins such as polyether ether ketone, polyether sulfone, polyetherimide, polyphenylene sulfide, polyamide, and polypropylene. Resin that is particularly suitable for the ribbon 26 is epoxy resin.
- Examples of the reinforcing fiber 30 of the ribbon 26 include carbon fiber, metal fiber, glass fiber, and aramid fiber. Fiber that is particularly suitable for the ribbon 26 is carbon long fiber. A plurality of kinds of fibers may be used in combination.
- FIG. 6 is an enlarged schematic diagram illustrating a part of the face fabric 18.
- FIG. 7 is an enlarged view along a line VII-VII in FIG. 6 .
- FIG. 8 is an enlarged view along a line VIII-VIII in FIG. 6.
- FIG. 6 illustrates the face fabric 18 on the assumption that the holes 20 (see FIG. 1 ) are absent.
- the counterclockwise direction represents a first direction
- the clockwise direction represents a second direction.
- the face fabric 18 has a plurality of first ribbons 26a and a plurality of second ribbons 26b.
- the first ribbons 26a are inclined in the first direction relative to the axial direction.
- the second ribbons 26b are inclined in the second direction relative to the axial direction.
- the first ribbons 26a and the second ribbons 26b are woven. Therefore, as shown in FIG. 7 , one first ribbon 26a intersects a plurality of the second ribbons 26b in a zigzag manner.
- one second ribbon 26b intersects a plurality of the first ribbons 26a in a zigzag manner.
- FIG. 7 one first ribbon 26a intersects a plurality of the second ribbons 26b in a zigzag manner.
- one second ribbon 26b intersects a plurality of the first ribbons 26a in a zigzag manner.
- reference character ⁇ R represents an angle of the first ribbon 26a relative to the axial direction
- reference character ⁇ R represents an angle of the second ribbon 26b relative to the axial direction.
- the angle ⁇ R and the angle ⁇ R are equal to each other.
- the angle ⁇ R is 45° and the angle ⁇ R is 45°.
- the first ribbon 26a includes a plurality of first fibers 32a aligned with each other.
- the first fibers 32a are schematically indicated by line segments.
- the first fibers 32a are embedded in the resin matrix 28. Therefore, the first fiber 32a is not visually recognized as an edge in an actual padel bat 2.
- the direction in which the first fibers 32a extend coincides with the direction in which the first ribbon 26a extends. Therefore, the first fibers 32a are inclined in the first direction relative to the axial direction.
- the first fibers 32a are thinned out and the number of the first fibers 32a drawn in one first ribbon 26a is nine. In an actual first ribbon 26a, the number of the first fibers 32a is greater than nine.
- the second ribbon 26b includes a plurality of second fibers 32b aligned with each other.
- the second fibers 32b are schematically indicated by line segments.
- the second fibers 32b are embedded in the resin matrix 28. Therefore, the second fiber 32b is not visually recognized as an edge in an actual padel bat 2.
- the direction in which the second fibers 32b extend coincides with the direction in which the second ribbon 26b extends. Therefore, the second fibers 32b are inclined in the second direction relative to the axial direction.
- the second fibers 32b are thinned out and the number of the second fibers 32b drawn in one second ribbon 26b is nine. In an actual second ribbon 26b, the number of the second fibers 32b is greater than nine.
- each hole 20 extends through the front face fabric 18a and reaches the rear face fabric 18b. In other words, the hole 20 penetrates through the core plate 16 and the pair of the face fabrics 18.
- the holes 20 can contribute to reduction of the weight of the head 6.
- the holes 20 can also contribute to reduction of air resistance of the head 6.
- the number of the holes 20 is preferably not less than 25 and not greater than 100.
- the shape of each hole 20 as viewed from the front side is a round shape.
- the diameter of the round shape is preferably not less than 5 mm and not greater than 20 mm.
- the head 6 may include a plurality of kinds of the holes 20 having different sizes.
- the head 6 may include the holes 20 having shapes other than the round shape.
- FIG. 9 is a pattern diagram illustrating the holes 20 of the padel bat 2 in FIG. 1 .
- reference character 34a represents a first array.
- FIG. 9 shows nine first arrays 34a. A plurality of the holes 20 belong to each of the first arrays 34a. In other words, the first array 34a is formed of a plurality of the holes 20. One hole 20 and another hole 20 adjacent to the one hole 20 in the first direction are sequentially grouped, to form the first array 34a.
- the first array 34a is an imaginary array. Therefore, in the actual padel bat 2, the first array 34a is not recognized as an edge.
- the extending direction of the first array 34a coincides with the extending direction of a line segment connecting one hole 20 and another hole 20 adjacent to the one hole 20 in the first direction to each other.
- the first array 34a is inclined in the first direction relative to the axial direction.
- reference character ⁇ L represents an angle of the first array 34a relative to the axial direction. In the present embodiment, the angle ⁇ L is 45°.
- each hole 20 belongs to any of the first arrays 34a.
- the hole 20 which does not belong to any of the first arrays 34a does not exist.
- the padel bat 2 may include the holes 20 each belonging to any of the first arrays 34a and the holes 20 each belonging to none of the first arrays 34a.
- a ratio of the number of the holes 20 each belonging to any of the first arrays 34a to the total number of the holes 20 is preferably not less than 60%, more preferably not less than 80%, and particularly preferably not less than 90%. In the embodiment shown in FIG. 9 , the ratio is 100%.
- FIG. 10 also illustrates a pattern of the holes 20.
- the pattern shown in FIG. 10 is the same as the pattern shown in FIG. 9 .
- reference character 34b represents a second array.
- FIG. 10 shows nine second arrays 34b.
- a plurality of the holes 20 belong to each of the second arrays 34b.
- the second array 34b is formed of a plurality of the holes 20.
- One hole 20 and another hole 20 adjacent to the one hole 20 in the second direction are sequentially grouped, to form the second array 34b.
- the second array 34b is an imaginary array. Therefore, in the actual padel bat 2, the second array 34b is not recognized as an edge.
- the extending direction of the second array 34b coincides with the extending direction of a line segment connecting one hole 20 and another hole 20 adjacent to the one hole 20 in the second direction to each other.
- the second array 34b is inclined in the second direction relative to the axial direction.
- reference character ⁇ L represents an angle of the second array 34b relative to the axial direction. In the present embodiment, the angle ⁇ L is equal to the angle ⁇ L. In the present embodiment, the angle ⁇ L is 45°.
- each hole 20 belongs to any of the second arrays 34b.
- the hole 20 which does not belong to any of the second arrays 34b does not exist.
- the padel bat 2 may include the holes 20 each belonging to any of the second arrays 34b and the holes 20 each belonging to none of the second arrays 34b.
- a ratio of the number of the holes 20 each belonging to any of the second arrays 34b to the total number of the holes 20 is preferably not less than 60%, more preferably not less than 80%, and particularly preferably not less than 90%. In the embodiment shown in FIG. 10 , the ratio is 100%.
- each of the holes 20 belongs to any of the first arrays 34a and belongs to any of the second arrays 34b.
- the padel bat 2 may include the hole 20 which belongs to any of the first arrays 34a and does not belong to any of the second arrays 34b.
- the padel bat 2 may include the hole 20 which does not belong to any of the first arrays 34a and belongs to any of the second arrays 34b.
- a ratio of the number of the holes 20 each belonging to any of the first arrays 34a and belonging to any of the second arrays 34b to the total number of the holes 20 is preferably not less than 50%, more preferably not less than 70%, and particularly preferably not less than 80%. In the embodiment shown in FIGS. 9 and 10 , the ratio is 100%.
- FIG. 11 is an enlarged view of a part of the head 6 of the padel bat 2 shown in FIG. 1 .
- FIG. 11 shows the holes 20 and the first fibers 32a.
- the second fiber 32b is not shown.
- the first fibers 32a are thinned out.
- the first fibers 32a are inclined in the first direction relative to the axial direction.
- reference character ⁇ F represents an angle of the first fiber 32a relative to the axial direction. In the present embodiment, the angle ⁇ F is 45°.
- the first array 34a is inclined in the first direction relative to the axial direction. The direction of the first fiber 32a and the direction of the first array 34a coincide with each other.
- reference character SP represents a line segment connecting the centers of the holes 20 belonging to the first array 34a to each other.
- Reference character PP represents a pitch between the first arrays 34a.
- Reference character LP represents a distance between one first array 34a and another first array 34a adjacent to the one first array 34a.
- Reference character Z1 represents an intersecting zone and reference character Z2 represents a non-intersecting zone. The direction in which the intersecting zone Z1 extends coincides with the direction in which the first fibers 32a extend. The first fibers 32a disposed in the intersecting zone Z1 intersect the holes 20, and are divided by the holes 20. The direction in which the non-intersecting zone Z2 extends coincides with the direction in which the first fibers 32a extend.
- the first fibers 32a disposed in the non-intersecting zone Z2 do not intersect the holes 20, and are not divided by the holes 20. In other words, the first fibers 32a disposed in the non-intersecting zone Z2 are extended over the frame 14. In the present embodiment, a width W2 of the non-intersecting zone Z2 is equal to the distance LP.
- FIG. 12 is an enlarged view of a part of the head 6 of the padel bat 2 shown in FIG. 1 .
- FIG. 12 shows the holes 20 and the second fibers 32b.
- the first fiber 32a is not shown.
- the second fibers 32b are thinned out.
- the second fibers 32b are inclined in the second direction relative to the axial direction.
- reference character ⁇ F represents an angle of the second fiber 32b relative to the axial direction. In the present embodiment, the angle ⁇ F is 45°.
- the second array 34b is inclined in the second direction relative to the axial direction. The direction of the second fiber 32b and the direction of the second array 34b coincide with each other.
- reference character SN represents a line segment connecting the centers of the holes 20 belonging to the second array 34b to each other.
- Reference character PN represents a pitch between the second arrays 34b.
- Reference character LN represents a distance between one second array 34b and another second array 34b adjacent to the one second array 34b.
- Reference character Z3 represents an intersecting zone and reference character Z4 represents a non-intersecting zone. The direction in which the intersecting zone Z3 extends coincides with the direction in which the second fibers 32b extend. The second fibers 32b disposed in the intersecting zone Z3 intersect the holes 20, and are divided by the holes 20. The direction in which the non-intersecting zone Z4 extends coincides with the direction in which the second fibers 32b extend.
- the second fibers 32b disposed in the non-intersecting zone Z4 do not intersect the holes 20, and are not divided by the holes 20. In other words, the second fibers 32b disposed in the non-intersecting zone Z4 are extended over the frame 14. In the present embodiment, a width W4 of the non-intersecting zone Z4 is equal to the distance LN.
- the direction in which the first fibers 32a extend and the direction in which the second fibers 32b extend are symmetric about the axial direction.
- the average length of the first fibers 32a and the average length of the second fibers 32b are substantially equal to each other.
- deformation of the first fibers 32a and deformation of the second fibers 32b are uniform with each other.
- the face fabric 18 inhibits breakage of the padel bat 2 even when a ball is repeatedly hit.
- the angle ⁇ F of the first fiber 32a and the angle ⁇ F of the second fiber 32b may be slightly different from each other.
- the absolute value of a difference ( ⁇ F- ⁇ F) is not greater than 10°, it may be considered that "the angle ⁇ F and the angle ⁇ F are substantially equal to each other".
- the absolute value of the difference ( ⁇ F- ⁇ F) is more preferably not greater than 7° and particularly preferably not greater than 5°.
- the angle ⁇ F is preferably not less than 30°, more preferably not less than 35°, and particularly preferably not less than 40°.
- the angle ⁇ F is preferably not greater than 60°, more preferably not greater than 55°, and particularly preferably not greater than 50°.
- the angle ⁇ F is 45°.
- the angle ⁇ F is preferably not less than 30°, more preferably not less than 35°, and particularly preferably not less than 40°.
- the angle ⁇ F is preferably not greater than 60°, more preferably not greater than 55°, and particularly preferably not greater than 50°.
- the angle ⁇ F is 45°.
- the width W2 (see FIG. 11 ) of the non-intersecting zone Z2 is sufficiently great.
- the number of the first fibers 32a which are not divided by the holes 20 is great.
- the width W4 (see FIG. 12 ) of the non-intersecting zone Z4 is sufficiently great.
- the number of the second fibers 32b which are not divided by the holes 20 is great.
- the fibers 32 which are not divided contribute to stiffness of the head 6.
- a ratio (W2/PP) of the width W2 to the pitch PP is preferably not less than 30%, more preferably not less than 40%, and particularly preferably not less than 45%.
- a ratio (W4/PN) of the width W4 to the pitch PN is preferably not less than 30%, more preferably not less than 40%, and particularly preferably not less than 45%.
- the angle ⁇ L of the first array 34a and the angle ⁇ F of the first fiber 32a may be slightly different from each other.
- the absolute value of a difference (aL-aF) is not greater than 10°, it may be considered that "the direction of the first fiber 32a and the direction of the first array 34a substantially coincide with each other.”
- the absolute value of the difference (aL-aF) is more preferably not greater than 7° and particularly preferably not greater than 5°.
- the angle ⁇ L of the second array 34b and the angle ⁇ F of the second fiber 32b may be slightly different from each other.
- the absolute value of a difference ( ⁇ L- ⁇ F) is not greater than 10°, it may be considered that "the direction of the second fiber 32b and the direction of the second array 34b substantially coincide with each other.”
- the absolute value of the difference ( ⁇ L- ⁇ F) is more preferably not greater than 7° and particularly preferably not greater than 5°.
- the number of the first arrays 34a is nine (see FIG. 9 ).
- the number is preferably not less than five, more preferably not less than seven, and particularly preferably not less than eight.
- the number is preferably not greater than 15, more preferably not greater than 12, and particularly preferably not greater than 10.
- the number of the second arrays 34b is nine (see FIG. 10 ).
- the number is preferably not less than five, more preferably not less than seven, and particularly preferably not less than eight.
- the number is preferably not greater than 15, more preferably not greater than 12, and particularly preferably not greater than 10.
- a padel bat shown in FIGS. 1 to 12 was produced.
- the ratio (W2/PP) was 50%
- the ratio (W4/PN) was 50%.
- a padel bat of a comparative example was obtained in the same manner as in the example except that the pattern of the holes was as shown in FIGS. 13 to 15 .
- the ratio (W2/PP) was 29%
- the ratio (W4/PN) was 29%.
- first direction may extend in the opposite direction to the second direction, preferably in the directly opposite direction.
- a padel bat including: a head; and a handle, in which
- the above-described bat is suitable for padel game and practice.
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Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2021176249A JP2023065864A (ja) | 2021-10-28 | 2021-10-28 | パデルバット |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4173679A1 true EP4173679A1 (de) | 2023-05-03 |
Family
ID=84044018
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP22204170.9A Pending EP4173679A1 (de) | 2021-10-28 | 2022-10-27 | Padel-schläger |
Country Status (2)
Country | Link |
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EP (1) | EP4173679A1 (de) |
JP (1) | JP2023065864A (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102023100885B3 (de) | 2023-01-16 | 2024-01-11 | Head Technology Gmbh | Padel-Schläger mit unterschiedlichen Öffnungen |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7538642U (de) * | 1975-12-04 | 1976-04-01 | Sigri Elektrographit Gmbh, 8901 Meitingen | Tischtennisschlaeger |
US5407195A (en) * | 1992-10-06 | 1995-04-18 | K.C.G. Hockey Finland Oy | Blade construct for a hockey stick or the like |
US20150024879A1 (en) | 2013-07-19 | 2015-01-22 | Wilson Sporting Goods Co. | Sports paddle with improved head portion |
CA3056674A1 (en) * | 2018-09-27 | 2020-03-27 | Tovi Llc | Hockey stick |
CN113082657A (zh) * | 2021-03-29 | 2021-07-09 | 西北工业大学 | 含有具备表面微观涂层的纤维夹层的乒乓球拍底板及制作方法 |
WO2022217045A1 (en) * | 2021-04-09 | 2022-10-13 | Revolin Sports, Llc | Composite paddles and methods for forming same |
-
2021
- 2021-10-28 JP JP2021176249A patent/JP2023065864A/ja active Pending
-
2022
- 2022-10-27 EP EP22204170.9A patent/EP4173679A1/de active Pending
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DE7538642U (de) * | 1975-12-04 | 1976-04-01 | Sigri Elektrographit Gmbh, 8901 Meitingen | Tischtennisschlaeger |
US5407195A (en) * | 1992-10-06 | 1995-04-18 | K.C.G. Hockey Finland Oy | Blade construct for a hockey stick or the like |
US20150024879A1 (en) | 2013-07-19 | 2015-01-22 | Wilson Sporting Goods Co. | Sports paddle with improved head portion |
US10864418B2 (en) * | 2013-07-19 | 2020-12-15 | Wilson Sporting Goods Co. | Sports paddle with improved head portion |
CA3056674A1 (en) * | 2018-09-27 | 2020-03-27 | Tovi Llc | Hockey stick |
CN113082657A (zh) * | 2021-03-29 | 2021-07-09 | 西北工业大学 | 含有具备表面微观涂层的纤维夹层的乒乓球拍底板及制作方法 |
WO2022217045A1 (en) * | 2021-04-09 | 2022-10-13 | Revolin Sports, Llc | Composite paddles and methods for forming same |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102023100885B3 (de) | 2023-01-16 | 2024-01-11 | Head Technology Gmbh | Padel-Schläger mit unterschiedlichen Öffnungen |
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