EP3088053A1 - Ball - Google Patents

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Publication number
EP3088053A1
EP3088053A1 EP14874633.2A EP14874633A EP3088053A1 EP 3088053 A1 EP3088053 A1 EP 3088053A1 EP 14874633 A EP14874633 A EP 14874633A EP 3088053 A1 EP3088053 A1 EP 3088053A1
Authority
EP
European Patent Office
Prior art keywords
divisional
ball
parts
bodies
protruding
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.)
Withdrawn
Application number
EP14874633.2A
Other languages
English (en)
French (fr)
Other versions
EP3088053A4 (de
Inventor
Kazuyuki WAKIBAYASHI
Yosuke Sato
Naoyuki Fujiwara
Yukinori Nagao
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.)
Molten Corp
Original Assignee
Molten Corp
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 Molten Corp filed Critical Molten Corp
Publication of EP3088053A1 publication Critical patent/EP3088053A1/de
Publication of EP3088053A4 publication Critical patent/EP3088053A4/de
Withdrawn legal-status Critical Current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
    • A63B39/00—Hollow non-inflatable balls, i.e. having no valves
    • 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
    • A63B41/02—Bladders
    • 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
    • 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
    • A63B41/10—Bladder and cover united

Definitions

  • the present invention relates to a hollow ball formed of a plurality of divisional bodies configured of a soft material made of resin or rubber.
  • Fig. 19 and Fig. 20 depict a bladder as an air cell of a ball disclosed in PTL 1.
  • the bladder is formed as one ball by coupling a flange part 102 of a first divisional body 101 and a flange part 104 of a second divisional part 103 together.
  • the first divisional body 101 is provided with a valve part 105 depicted in Fig. 20 . Therefore, a needle such as an injection needle is inserted into the valve part 105 from outside the bladder, a tip of an air pump is connected to that needle, and the air pump allows air to be blown into the inside of the bladder and to be removed from the inside of the bladder.
  • the first divisional body 101 is made of thermoplastic resin, and has a form including a dome-shaped space inside from a circular opening.
  • linearly-shaped protruding parts 106 extend longitudinally and laterally, and protrude to a space side from the inner wall surface of the first divisional body 101. With the protruding parts 106 crossing each other longitudinally and laterally, many recessed parts 107 each having a rectangular plane of orthogonal projection are formed on the inner wall surface of the first divisional body 101 as being surrounded by the protruding parts 106.
  • the flange part 102 of the first divisional body 101 protrudes from the opening of the first divisional body 101 to outside in a diameter direction of the first divisional body 101, and has an annular shape which circles the opening of the first divisional body 101 once.
  • the flange part 102 is provided with a positioning part 108.
  • the second divisional body 103 is made of thermoplastic resin, and has a form including a dome-shaped space inside from a circular opening.
  • linearly-shaped protruding parts 109 extend longitudinally and laterally, and protrude to a space side from the inner wall surface of the first divisional body 101. With the protruding parts 109 crossing each other longitudinally and laterally, many recessed parts 110 each having a rectangular plane of orthogonal projection are formed on the inner wall surface of the first divisional body 101 as being surrounded by the protruding parts 109.
  • the flange part 104 of the second divisional body 103 protrudes from the opening of the second divisional body 103 to outside in a diameter direction of the second divisional body 103, and has an annular shape which circles the opening of the second divisional body 103 once.
  • the flange part 104 is provided with a positioning part 111.
  • the first divisional body 101 and the second divisional body 103 are made as one sphere to configure the bladder depicted in Fig. 20 .
  • the bladder formed of the first and second divisional bodies 101 and 103 since the flange parts 102 and 104 have a structure protruding from the outer wall surface of the bladder to outside, the bladder cannot be used as a ball unless a skin body not depicted is attached to the bladder. Moreover, when a skin body is attached to the bladder, it is required to evade the flange parts 102 and 104 or provide the skin body with a foam layer for absorbing steps of flange parts 102 and 104.
  • the present invention has been made in view of the background art described above, and has an object of making a ball have uniform hardness as a whole and allowing use as a ball irrespectively of attaching a skin body formed separately from a first divisional body and a second divisional body to an outer wall surface of the ball.
  • the present invention is directed to a hollow ball formed of a plurality of divisional bodies configured of a soft material made of resin or rubber, wherein each divisional body has an inner wall surface provided with protruding parts or recessed parts and divisional end parts of the respective divisional bodies are configured not to protrude outside from an outer wall surface of the ball when welded or bonded together so as to configure the hollow ball.
  • the present invention has the structure in which the protruding parts or the recessed parts are provided on the inner wall surface of the hollow ball formed of the plurality of divisional bodies, the protruding parts exert a function as a bobbin to make the ball have uniform hardness as a whole, allowing use as a ball irrespectively of attaching a skin body formed separately from the plurality of divisional bodies to the outer wall surface of the ball. That is, with the protruding parts or the recessed parts provided to the inner wall surface of the hollow ball, it was possible to develop a ball which bounces even if compressed air above atmospheric pressure is not blown into the inside of the ball.
  • the divisional end parts of the respective divisional bodies are configured not to protrude outside from the outer wall surface of the ball when welded or bonded together so as to configure a hollow ball
  • the skin body can be affixed, without a special process, across a coupling line where the divisional end parts of the respective divisional bodies are welded or bonded together.
  • the divisional end part of the divisional body is provided with a flange part as protruding from the divisional end part of the divisional body to a center part side and the flange parts are configured not to protrude outside the outer wall surface of the ball when welded or bonded together so as to configure the hollow ball, the coupling strength of the divisional bodies can be maintained even if the thickness of the dome-shaped wall body parts of the divisional bodies is made thinner. Also, in the present invention, if the ball is used as a bladder and a skin body is provided on an outer wall surface of the bladder, the skin body can be changed to share the bladder for use.
  • first and second divisional bodies 1 and 11 With reference to Fig. 1 , the structure inside first and second divisional bodies 1 and 11 illustrated as a plurality of divisional bodies according to a first embodiment is described.
  • the plurality of divisional bodies configure one hollow ball. Therefore, by being combined together, the first and second divisional bodies 1 and 11 configure one hollow ball.
  • the first and second divisional bodies 1 and 11 are configured of thermoplastic resin, the first and second divisional bodies 1 and 11 can be welded or coupled with a bonding agent.
  • the first and second divisional bodies 1 and 11 are configured of thermosetting resin or rubber, the first and second divisional bodies 1 and 11 can be coupled with a bonding agent.
  • the first divisional body 1 is configured in a sagittal shape including a space recessed inside from a circular opening.
  • the first divisional body 1 has an integral structure including a wall body part 2, recessed parts 3 , protruding parts 4, and a flange part 5.
  • the wall body part 2 surrounding the space of the first divisional body 1 has the same thickness as a whole.
  • the wall body part 2 is in a dome shape protruding from a back side to a front side.
  • the dome shape refers to a solid figure obtained by cutting a hollow ball along one plane.
  • the wall body part 2 configures a three-dimensional curved surface along an outer wall surface of a ball defined in advance.
  • many protruding parts 3 are linearly provided. Each protruding part 3 protrudes from an inner wall surface of the wall body part 2 to the inner space of the first divisional body 1.
  • many recessed parts 4 each having a triangular surface of projection are formed as being surrounded by the respective protruding parts 3.
  • a divisional end part formed in a circular opening of the first divisional body 1 is provided with the flange part 5.
  • the flange part 5 protrudes from the divisional end part of the first divisional body 1 to a center part side of the opening of the first divisional body 1, and has an annular shape which circles the opening of the first divisional body 1 once. That is, the flange part 5 is configured to be in an annular shape protruding from the outer wall surface of the first divisional body 1 to an inner space side, without protruding to an outer wall surface side of the first divisional body 1.
  • the second divisional body 11 is configured in a sagittal shape including a space recessed inside from a circular opening.
  • the second divisional body 11 has an integral structure including a wall body part 12, recessed parts 13, protruding parts 14, and a flange part 15.
  • the wall body part 12 surrounding the space of the second divisional body 11 has the same thickness as a whole.
  • the wall body part 12 is in a dome shape protruding from a back side to a front side. Therefore, the wall body part 12 configures a three-dimensional curved surface along an outer wall surface of a ball defined in advance.
  • protruding parts 13 On an inner wall surface positioned on a space side in the wall body part 12, many protruding parts 13 are linearly provided. Each protruding part 13 protrudes from the inner wall surface of the wall body part 12 to the inner space of the second divisional body 11. On the inner wall surface of the second divisional body 11, many recessed parts 14 each having a triangular surface of projection are formed as being surrounded by the respective protruding parts 13.
  • a divisional end part formed in a circular opening of the second divisional body 11 is provided with the flange part 15.
  • the flange part 15 protrudes from the opening of the second divisional body 11 to a center part side of the opening of the second divisional body 11, and has an annular shape which circles the opening of the second divisional body 11 once. That is, the flange part 15 is configured to be in an annular shape protruding from an outer wall surface of the second divisional body 11 to an inner space side, without protruding to an outer wall surface side of the second divisional body 11.
  • the structure of the first divisional body 1 provided with the wall body part 2, the protruding parts 3, the recessed parts 4, and the flange part 5 and the structure of the second divisional body 11 provided with the wall body part 12, the protruding parts 13, the recessed parts 14, and the flange part 15 have the same shape, and the first divisional body 1 and the second divisional body 11 have the same weight. Therefore, when the structure of the hollow ball does not allow air to be blown therein or removed therefrom, two divisional bodies having the same shape are formed by molding using a mold, and one of the two can be applied as the first divisional body 1 and the other of the two can be applied as the second divisional body 11.
  • first and second divisional bodies 1 and 11 can be assembled so as to configure one hollow sphere by an assembling machine not depicted.
  • a case is described in which the first and second divisional bodies 1 and 11 are assembled so as to configure one hollow sphere by the assembling machine not depicted.
  • Two holding parts in the assembling machine not depicted are open in a state of facing each other and being separated from each other. One of the holding parts is caused to hold the first divisional body 1 and the other of the holding parts is caused to hold the second divisional body 11.
  • the flange part 5 of the first divisional body 1 held by one holding part and the flange part 15 of the second divisional body 11 held by the other holding part are in a state of facing each other, for example, as depicted in Fig. 3 .
  • the two holding parts rectilinearly move in a direction in which they approach each other to press the end faces 6 and 16 to each other, thereby causing the first and second divisional bodies 1 and 11 to be strongly welded together to configure one hollow ball.
  • the protruding parts 3 and 13 exert a function as a bobbin to make the ball formed of the first and second divisional bodies 1 and 11 have uniform hardness as a whole, and it is possible to exert an appropriate rebound performance as a ball.
  • each regular pentagon face part 62 in the truncated icosahedron 61 is provided with five triangular regions.
  • Each regular hexagon face part 63 in the truncated icosahedron 61 is provided with six triangular regions. The triangular regions in the regular pentagon face part 62 and the triangular regions in the regular hexagon face part 63 have different sizes.
  • the first and second divisional bodies 1 and 11 are described.
  • the outer wall surface centering at a center part 7 positioned at the opening of the first divisional body 1 has a radius 8
  • the inner wall surface centering at the center part 7 positioned at the opening of the first divisional body 1 has a radius 9
  • the outer wall surface centering at a center part 17 positioned at the opening of the second divisional body 11 has a radius 18
  • the inner wall surface centering at the center part 17 positioned at the opening of the second divisional body 11 has a radius 19
  • the radiuses 8 and 18 have the same dimension
  • the radiuses 9 and 19 have the same dimension.
  • a coupling line 21 is present where the flange parts 5 and 15 of the first and second divisional bodies 1 and 11 are coupled together.
  • the flange parts 5 and 15 do not protrude outside from the outer wall surfaces of the first and second divisional bodies 1 and 11. That is, the outer wall surface of the ball configures a smooth spherical surface where the outer wall surfaces of the first and second divisional bodies 1 and 11 continue to each other.
  • the ball is configured so that compressed air with pressure above atmospheric pressure cannot be injected inside from outside.
  • the ball is configured so that compressed air with pressure higher than atmospheric pressure can be injected inside from outside.
  • a through hole part which communicates with the inside and outside of the ball is provided to that portion.
  • the valve installation hole part 22 indicated by the virtual line in Fig. 4 is provided to one or both of the first and second divisional bodies 1 and 11.
  • a valve part not depicted is attached to the valve installation hole part 22, a needle such as an injection needle is inserted into the valve from outside the ball, a tip of an air pump is connected to that needle, and the air pump allows air to be blown into the inside of the ball and to be removed from the inside of the ball. That is, with the inside of the ball formed of the first and second divisional bodies 1 and 11 becoming at pressure higher than atmospheric pressure, the structure allows the use of characteristics of an air spring.
  • first and second divisional bodies 1 and 11 according to a second embodiment are described.
  • the first and second divisional bodies 1 and 11 depicted in Fig. 5 are different from the first and second divisional bodies 1 and 11 depicted in Fig. 3 in that the structure is not provided with the flange parts 5 and 15 depicted in Fig. 3 .
  • the thickness of the wall body parts 2 and 12 depicted in Fig. 5 is configured to be thicker than the thickness of the wall body parts 2 and 12 depicted in Fig. 3 , and the end faces 6 and 16 of the divisional end parts are welded. With this, a coupling line identical to the coupling line 21 depicted in Fig.
  • the divisional end parts of the first and second divisional bodies 1 and 11 are coupled together.
  • the divisional end parts do not protrude outside from the outer wall surfaces of the first and second divisional bodies 1 and 11. That is, the outer wall surface of the ball configures a smooth spherical surface where the outer wall surfaces of the first and second divisional bodies 1 and 11 continue to each other.
  • a structure according to a third embodiment is described in which protruding parts 33 and 34 have a difference of elevation.
  • a divisional body 31 is a generic name for the first and second divisional bodies 1 and 11 of Fig. 1
  • a wall body part 32 is a generic name for the wall body parts 2 and 12 of Fig. 1
  • the protruding parts 33 and 34 are generic names for the protruding parts 3 and 13 of Fig. 1
  • recessed parts 35 and 36 are generic names for the recessed parts 4 and 14 of Fig. 1 .
  • the protruding part 33 when the protruding part 33 surrounds one recessed part 35 and the protruding parts 34 surround a plurality of recessed parts 36 in the recessed part 35, the protruding part 33 is higher than the recessed parts 34.
  • a height H1 of the protruding part 33 is higher than a height H2 of the protruding part 34 (H1>H2).
  • the heights H1 and H2 are dimensions protruding from the wall body part 32 to an inner side of the divisional body 31.
  • a structure according to a fourth embodiment is described in which protruding parts 33 and 34 have a difference of elevation.
  • a structure can also applied in which a height H2 of the protruding part 34 is decreased as heading from both end parts positioned on a protruding part 33 side toward a center part side of the recessed part 35.
  • a divisional body 31 is a generic name for the first and second divisional bodies 1 and 11 of Fig. 1
  • a wall body part 32 is a generic name for the wall body parts 2 and 12 of Fig. 1
  • the protruding parts 33 and 34 are generic names for the protruding parts 3 and 13 of Fig. 1
  • recessed parts 35 and 36 are generic names for the recessed parts 4 and 14 of Fig. 1 .
  • asperities such as wrinkles, dimples, or knurls are provided on an outer wall surface of a wall body part 32, for example, a protruding pattern part 56 and a recessed pattern part 57 are formed on the outer wall surface of the wall body part 32, and it is thereby also possible to make the surface hard to slip.
  • asperities are provided on the outer wall surface of the wall body part 32, they are provided by molding the divisional body 31 in one case, and a skin body formed separately from the divisional body 31 is attached to the outer wall surface of the wall body part 32 in another case.
  • a structure according to a fifth embodiment is described in which protruding parts 37 and 38 are discontinuous.
  • the structure is such that a plurality of protruding parts 37 are present in gaps between a plurality of protruding parts 38, the plurality of protruding parts 38 are present in gaps between the plurality of protruding parts 37, the plurality of protruding parts 37 and the plurality of protruding parts 38 are arranged in a lattice shape, and paired protruding parts 37 and paired protruding parts 38 surround one recessed part 39.
  • a divisional body 31 is a generic name for first and second divisional bodies 1 and 11 of Fig.
  • a wall body part 32 is a generic name for the wall body parts 2 and 12 of Fig. 1
  • the protruding parts 37 and 38 are generic names for the protruding parts 3 and 13 of Fig. 1
  • recessed parts 39 are generic names for the recessed parts 4 and 14 of Fig. 1 .
  • a triangle, tetragon, pentagon, or polygon larger than those mentioned above, a circle, an oval, or the like can be applied.
  • a protruding part 46 On an inner surface of a wall body part 32 of a divisional body 31, the protruding part 46 is provided in a spiral shape. The number of protruding part 46 may be one, two, or more. The protruding part 46 may have a discontinuous structure with a gap present in midstream.
  • the divisional body 31 is a generic name for the first and second divisional bodies 1 and 11 of Fig. 1
  • the wall body part 32 is a generic name for the wall body parts 2 and 12 of Fig. 1
  • the protruding part 46 is a generic name for the protruding pars 3 and 13 of Fig. 1
  • the protruding part 46 configured as a recessed part can also be applied.
  • protruding parts 47 and 48 With reference to Fig. 11 , the structure of protruding parts 47 and 48 according to a seventh embodiment is described.
  • the protruding parts 47 On an inner surface of a wall body part 32 of a divisional body 31, the protruding parts 47 are radially provided.
  • a protruding part 48 On a portion partitioned by adjacent protruding parts 47, a protruding part 48 is provided in a zigzag manner.
  • the number of protruding parts 47 and 48 may be one, two, or more.
  • the protruding parts 47 and 48 may have a discontinuous structure with a gap present in midstream.
  • the divisional body 31 is a generic name for the first and second divisional bodies 1 and 11 of Fig.
  • the wall body part 32 is a generic name for the wall body parts 2 and 12 of Fig. 1
  • the protruding part 46 is a generic name for the protruding parts 3 and 13 of Fig. 1
  • the protruding parts 47 and 48 configured as recessed parts can also be applied.
  • first and second divisional bodies 1 and 11 according to an eighth embodiment are described.
  • the first divisional body 1 has a divided shape smaller than the second divisional body 11.
  • protruding parts 3 and 13 are provided so as to surround many recessed parts 4 and 14 in a geometric pattern shape. Then, with an opening of the first divisional body 1 and an opening of the second divisional body 11 caused to face each other and an end face 6 of the first divisional body 1 and an end face 6 of the second divisional body 11 coupled together, the first and second divisional bodies 1 and 11 form one ball.
  • first and second divisional bodies 1 and 11 each have a shape obtained by division into a gourd shape, as a divisional body configuring a baseball or tennis ball.
  • protruding parts 3 and 13 are provided so as to surround many recessed parts 4 and 14 in a geometric pattern shape.
  • openings of the first and second divisional bodies 1 and 11 caused to face each other and end faces 6 and 16 of the first and second divisional bodies 1 and 11 respectively coupled together, the first and second divisional bodies 1 and 11 form one ball.
  • a virtual line depicted in Fig. 13 is a line indicating the outer shape of one ball configured of the first and second divisional bodies 1 and 11. Note that a divisional structure can be applied in which the first and second divisional bodies 1 and 11 are coupled together at one point so as not to come apart.
  • first to third divisional bodies 1, 11, and 41 illustrated as a plurality of divisional bodies according to a tenth embodiment are described.
  • the first to third divisional bodies 1, 11, and 41 form a shape divided into three in a circumferential direction over paired poles in one hollow ball.
  • protruding parts 3, 13, and 43 and flange parts 5, 15, and 44 are provided so as to surround many recesses parts 4, 14, and 42 in a geometric pattern shape.
  • end faces 6, 16: 45 positioned at openings at the flange parts 5, 15, and 44 of the first to third divisional bodies 1, 11, and 41 coupled together, the first to third divisional bodies 1, 11, and 41 form one ball.
  • a divisional structure can be applied in which the first and second divisional bodies 1 and 11 are coupled together at one point so as not to come apart.
  • first to fourth divisional bodies 1, 11, 41, and 51 illustrated as a plurality of divisional bodies according to an eleventh embodiment are described.
  • the first to fourth divisional bodies 1, 11, 41, and 51 have a shape of being linked together at one pole in one hollow ball and being divided into four in a circumferential direction.
  • protruding parts 3, 13, 43, and 52, recessed parts 4, 14, 42, and 53, and flange parts 5, 15, 44, and 54 are provided on inner wall surfaces of the first to fourth divisional bodies 1, 11, 41, and 51.
  • the structure is such that the protruding parts 3, 13, 43, and 52 individually surround the recessed parts 4, 14, 42, and 53.
  • the recessed parts 4, 14, 42, and 53 are many in a shape of a geometric pattern.
  • end faces 6, 16:45, and 55 of the respective first to fourth divisional bodies 1, 11, 41, and 51 coupled together the first to fourth divisional bodies 1, 11, 41, and 51 form one ball.
  • a bladder 70 is configured of a ball having the protruding parts 3 and the recessed parts 4 depicted in Fig. 1 inside.
  • a skin body 71 even in a shape other than a hexagon can be applied. Also, the number of types of the shape of the skin body 71 affixed to one bladder 70 is not necessarily one, and the skin bodies 71 of many types can be applied.
  • the skin body 71 is configured of a soft material made of resin or rubber, and includes a main body part 72, a circumferential wall part 73, and a beveled part 74.
  • the main body part 72 has a dome shape protruding from a back side to a front side, and configures a three-dimensional curved surface along an outer wall surface of the bladder 70 defined in advance.
  • the circumferential wall part 73 protrudes from each peripheral edge part of the main body part 72 to a back side as a bladder 70 side, and has an annular shape which surrounds the peripheral edge parts of the main body part 72 once.
  • the beveled part 74 is configured by removal so that a dihedral angle between the main body part 72 and the circumferential wall part 73 forms a flat surface or curved surface on the front side as a side of the skin body 71 to be touched by a person. That is, the beveled part 74 configured by removal so that the dihedral angle between the main body part 72 and the circumferential wall part 73 forms a flat surface or curved surface is provided on the front side of the skin body 71.
  • the skin body 71 has a simple structure integrally configured, including the main body part 72, the circumferential wall part 73, and the beveled part 74.
  • a structure according to a thirteenth embodiment is described in which a skin body 71 is affixed to a bladder 70 configured of a ball having the protruding parts 3 and the recessed parts 4 depicted in Fig. 1 inside.
  • a main body part 72 is arranged away from an outer wall surface of the bladder 70, and surfaces of the adjacent circumferential wall parts 73 on a bladder 70 side are bonded to the outer wall surface of the bladder 70 with a bonding agent.
  • a cavity part 75 is formed between the skin body 71 and the bladder 70 as a space surrounded by the bladder 70, the main body part 72, and the circumferential wall parts 73, and a plurality of skin bodies 71 cover an entire outer wall surface of the bladder 70.
  • the main body part 72 is easily recessed, thereby allowing the ball to be easily grabbed.
  • a valley part based on the beveled part 74 is formed on a boundary between adjacent skin bodies 71, thereby allowing the ball to be easily grabbed.
  • the outer appearance of the ball becomes in a hand-stitch style.
  • the ball has a structure in which adjacent skin bodies 71 are fixed to an outer wall surface of a bladder 70 so that a gap is formed between adjacent circumferential wall parts 73 and a spacer 76 is arranged in that gap. It is applicable to integrally provide the spacer 76 to the bladder 70, or to provide the spacer 76 separately from the bladder 70. When the spacer 76 is separate from the bladder 70, the spacer 76 is fixed to one or both of the bladder 40 and the adjacent skin body 71.
  • protruding parts 3,13, 33, 34, 37, 38, 43, and 52 are recessed parts
  • the above recessed parts 4, 14, 35, 36, 39, 42, and 53 are protruding parts
  • the recessed parts in place of the protruding parts 3, 13, 33, 34, 37, 38, 43, and 52 are provided to inner surfaces of the first divisional body 1, the second divisional body 11, the divisional body 31, the third divisional body 41, the fourth divisional body 51, and so forth so as to surround the protruding parts in place of the recessed parts 4, 14, 35, 36, 39, 42, and 53.
  • the protruding parts 3, 13, 33, 34, 37, 38, 43, and 52 or the protruding parts in place of the recessed parts 4, 14, 35, 36, 39, 42, and 53 have a discontinuous shape of circles, ovals, polygons or the like other than linear shapes as long as the ball has uniform hardness as a whole and an appropriate rebound performance as a ball can be exerted.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Finger-Pressure Massage (AREA)
  • Toys (AREA)
EP14874633.2A 2013-12-27 2014-12-26 Ball Withdrawn EP3088053A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013271688 2013-12-27
PCT/JP2014/084717 WO2015099185A1 (ja) 2013-12-27 2014-12-26 ボール

Publications (2)

Publication Number Publication Date
EP3088053A1 true EP3088053A1 (de) 2016-11-02
EP3088053A4 EP3088053A4 (de) 2017-09-13

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EP14874633.2A Withdrawn EP3088053A4 (de) 2013-12-27 2014-12-26 Ball

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EP (1) EP3088053A4 (de)
JP (1) JPWO2015099185A1 (de)
CN (1) CN105828891A (de)
WO (1) WO2015099185A1 (de)

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JP6448857B2 (ja) * 2016-07-12 2019-01-09 株式会社モルテン ボール
JP7072795B2 (ja) * 2018-02-07 2022-05-23 株式会社モルテン 運動用ボール

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CN201719763U (zh) * 2010-04-12 2011-01-26 陆臻 一种球体内壁凸有筋网的乒乓球
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US8622857B2 (en) * 2011-08-26 2014-01-07 Jack Lo Inflatable ball with rib structure

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EP3088053A4 (de) 2017-09-13
JPWO2015099185A1 (ja) 2017-03-23
WO2015099185A1 (ja) 2015-07-02

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