KR20210092426A - Park golf ball manufactured by the method and method of park golf ball - Google Patents

Park golf ball manufactured by the method and method of park golf ball Download PDF

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Publication number
KR20210092426A
KR20210092426A KR1020200005793A KR20200005793A KR20210092426A KR 20210092426 A KR20210092426 A KR 20210092426A KR 1020200005793 A KR1020200005793 A KR 1020200005793A KR 20200005793 A KR20200005793 A KR 20200005793A KR 20210092426 A KR20210092426 A KR 20210092426A
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South Korea
Prior art keywords
golf ball
nucleus
park golf
cover
core
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KR1020200005793A
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Korean (ko)
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장세주
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장세주
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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B45/00—Apparatus or methods for manufacturing balls
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B37/00—Solid balls; Rigid hollow balls; Marbles
    • A63B37/0003—Golf balls
    • A63B37/0023—Covers
    • A63B37/0029—Physical properties
    • A63B37/0033—Thickness
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B37/00—Solid balls; Rigid hollow balls; Marbles
    • A63B37/0003—Golf balls
    • A63B37/0038—Intermediate layers, e.g. inner cover, outer core, mantle
    • A63B37/004—Physical properties
    • A63B37/0045—Thickness
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B37/00—Solid balls; Rigid hollow balls; Marbles
    • A63B37/0003—Golf balls
    • A63B37/007—Characteristics of the ball as a whole
    • A63B37/0072—Characteristics of the ball as a whole with a specified number of layers
    • A63B37/0076—Multi-piece balls, i.e. having two or more intermediate layers
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B37/00—Solid balls; Rigid hollow balls; Marbles
    • A63B37/0003—Golf balls
    • A63B37/007—Characteristics of the ball as a whole
    • A63B37/0077—Physical properties
    • A63B37/0097—Layers interlocking by means of protrusions or inserts, lattices or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1615—The materials being injected at different moulding stations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/2602—Mould construction elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/54—Balls
    • B29L2031/546—Golf balls

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The present invention relates to a manufacturing method of a park golf ball and a park golf ball manufactured by the method thereof. A first molded product is formed with grooves at equal intervals around a core cover by a protrusion piece supporting a core when the core cover surrounding the core is formed in a first mold and the protrusion piece at equal intervals between the grooves. A second molded product is formed by putting the first molded product into a second mold, filling the groove formed in the core cover, and integrally forming a protruding piece on the opposite of the groove and is formed with an intermediate layer with the same thickness as the protrusion piece formed on the core cover. A surface layer is formed with the same thickness as the protrusion piece protruding on the opposite side of the groove formed on the intermediate layer by putting the second molded product into a third mold. According to the present invention, it is possible to provide a high-quality park golf ball in which the core constituting the park golf ball is precisely arranged in the center, and the thickness formed by the core cover, the intermediate layer, and the surface layer is uniformly formed.

Description

파크골프공의 제조방법 및 그 방법에 의해 제조된 파크골프공{Park golf ball manufactured by the method and method of park golf ball}A method of manufacturing a park golf ball and a park golf ball manufactured by the method {Park golf ball manufactured by the method and method of park golf ball}

본 발명은 파크골프공의 중심에 있는 핵과 상기 핵을 중심으로 경도가 다른 합성수지를 여러 겹으로 성형하여 소정의 지름을 갖는 파크골프공을 제조하는 과정에서 핵의 중심이 정확하게 유지되면서 두께가 일정하게 성형될 수 있도록 하는 파크골프공의 제조방법 및 그 방법에 의해 제조된 파크골프공에 관한 것이다.The present invention provides a core at the center of a park golf ball and a synthetic resin having different hardness around the core in multiple layers to produce a park golf ball having a predetermined diameter while maintaining the exact center of the core while maintaining a constant thickness. It relates to a method for manufacturing a park golf ball that can be molded and to a park golf ball manufactured by the method.

주지하는 바와 같이 파크골프는 골프(Golf)에 공원(Park·파크)을 더한 의미로써, 공원과 같은 소규모 녹지에서도 즐길 수 있도록 골프를 재구성한 것이다.As is well known, park golf is the meaning of adding park to golf, and it is a reorganization of golf so that it can be enjoyed even in small green areas such as parks.

상기한 파크골프에 사용되는 파크골프공은 안전을 위하여 일반 골프공보다 크고 부드러운 재질로 지름 6㎝의 플라스틱 공을 사용하고, 티샷부터 퍼팅까지 모두 86㎝ 이하 길이의 가벼운 채 하나만을 사용하며, 채를 세게 휘둘러도 파크골프공은 멀리 나가지 않게 구성되어 있다.For safety, the park golf ball used in the above-mentioned park golf uses a plastic ball with a diameter of 6 cm, which is larger and softer than a general golf ball, and uses only one light pole with a length of 86 cm or less from the tee shot to putting. The park golf ball is constructed so that it does not go far even if you swing it hard.

이러한 파크골프에서 사용하는 파크골프공의 구조는 부드러운 플라스틱 재질로 지름 6㎝인데, 파크골프공의 중심에 핵이 있고, 상기 핵을 여러 겹 둘러싼 구조로 이루어진다.The structure of the park golf ball used in such a park golf is made of a soft plastic material and has a diameter of 6 cm. The nucleus is at the center of the park golf ball, and the nucleus is surrounded by several layers.

상기와 같이 구성된 파크골프공의 제조방법을 살펴보면, 사출기에 사출금형을 장착하고, 사출금형의 상하에 형성된 받침 돌기 사이에 핵을 넣고 사출기를 작동시켜 사출금형의 내부공간으로 합성수지를 밀어 넣어서 소정의 지름을 갖는 파크골프공을 제조하였다.Looking at the manufacturing method of the park golf ball configured as described above, an injection mold is mounted on an injection molding machine, a nucleus is placed between the support protrusions formed on the upper and lower sides of the injection mold, and the injection machine is operated to push synthetic resin into the internal space of the injection mold to a predetermined value. A park golf ball having a diameter was manufactured.

상기와 같이 파크골프공을 성형하게 되면, 사출기에서 사출금형 속으로 투입되는 합성수지의 사출압력에 의해서 받침 돌기 사이에 있는 핵이 중심에서 벗어날 수 있기 때문에 불량이 많이 발생하고, 품질이 떨어진 파크골프공이 제조될 수밖에 없는 문제가 있다.When a park golf ball is molded as described above, a lot of defects occur because the nucleus between the support projections can be deviated from the center by the injection pressure of the synthetic resin injected into the injection mold from the injection machine, and the poor quality of the park golf ball There is a problem that cannot but be manufactured.

그리고, 상기와 같이 핵의 중심이 벗어난 품질이 떨어진 파크골프공으로 경기를 하게 되면, 골퍼들이 채로 파크골프공을 타격하였을 때, 골퍼가 원하는 방향과 거리로 파크골프공이 날아가지 않게 되는 문제가 있다.In addition, as described above, when a game is played with a poor quality park golf ball that is out of the center of the nucleus, there is a problem in that the park golf ball does not fly in the direction and distance desired by the golfer when the golfer hits the park golf ball while holding it.

공개특허 제10-1998-080747호(1998년11월25일.공개)Patent Publication No. 10-1998-080747 (November 25, 1998. Published)

본 발명은 상기한 문제점을 해결하기 위한 것으로서, 핵을 사출금형에 넣고 사출기에서 사출금형의 내부공간으로 합성수지를 밀어넣을 때 사출압력에 의해서 핵이 움직이지 않고 정확하게 중심을 잡을 수 있게 하고, 다시 핵을 여러 겹 둘러싸는 성형을 할 때에도 정확한 중심에 머무르면서 소정의 지름을 갖는 파크골프공을 제조할 수 있는 방법을 제공하여, 파크골프공을 제조할 때 불량을 완벽하게 줄여서 제조원가를 절감할 수 있고, 품질이 우수한 파크골프공으로 제공하는데 그 목적이 있다.The present invention is to solve the above problems, and when the nucleus is put into an injection mold and the synthetic resin is pushed from the injection machine into the inner space of the injection mold, the nucleus does not move by the injection pressure and can be accurately centered without moving the nucleus By providing a method for manufacturing a park golf ball having a predetermined diameter while staying in the correct center even when molding surrounding multiple layers, it is possible to reduce the manufacturing cost by completely reducing defects when manufacturing the park golf ball, Its purpose is to provide high-quality park golf balls.

본 발명은 상기한 바와 같은 목적을 달성하기 위한 것으로서, 1차 금형에서 핵을 둘러싼 핵 커버를 성형할 때 핵을 받쳐주는 돌출편에 의해서 핵 커버의 둘레에 등간격으로 4개의 홈이 형성되고, 4개의 홈 사이에 등간격으로 4개의 돌출편이 형성되게 제1성형물이 성형되게 하고, 상기 제1성형물을 2차 금형에 넣고 핵 커버에 형성된 4개의 홈을 메꾸는 동시에 4개의 홈 반대쪽에 돌출편을 일체로 형성하고 핵 커버에 형성된 4개의 돌출편과 같은 두께로 중간층이 형성된 제2성형물이 성형되게 하며, 제2성형물을 3차 금형에 넣고 중간층에 형성된 4개의 홈 반대쪽에 돌출된 돌출편과 같은 두께로 표면층을 성형하여 제조된 것이 본 발명에 특징이다.The present invention is to achieve the object as described above, and when forming the nucleus cover surrounding the nucleus in the primary mold, four grooves are formed at equal intervals around the nucleus cover by the protruding pieces supporting the nucleus, The first molding is molded so that four protruding pieces are formed at equal intervals between the four grooves, and the first molding is put into the secondary mold, and the four grooves formed in the core cover are filled, while the protruding pieces opposite the four grooves are formed. is integrally formed and a second molding with an intermediate layer is molded to the same thickness as the four protruding pieces formed on the core cover, and the second molding is placed in the tertiary mold and the protruding pieces protruding on the opposite side of the four grooves formed in the intermediate layer and It is a feature of the present invention that it is manufactured by molding the surface layer to the same thickness.

이상과 같은 본 발명에 의하면, 파크골프공을 구성하는 핵이 중심에 정확하게 배치되고, 핵 커버와 중간층과 표면층이 각각 이루는 두께가 일정하게 형성된 품질이 우수한 파크골프공을 제공할 수 있는 효과가 있다.According to the present invention as described above, it is possible to provide a high-quality park golf ball in which the core constituting the park golf ball is precisely arranged in the center, and the thickness formed by the core cover, the intermediate layer, and the surface layer, respectively, is uniformly formed. .

상기와 같은 파크골프공으로 골퍼들이 경기를 할 때 파크골프공의 어느 부분을 타격하더라도 골퍼가 원하는 방향과 거리로 파크골프공이 정확하게 날아갈 수 있기 때문에 파크골프공의 품질을 신뢰할 수 있을 뿐만 아니라, 경기력을 향상시키는 효과가 있다.When golfers play with the park golf ball as described above, no matter what part of the park golf ball is hit, the park golf ball can fly exactly in the direction and distance desired by the golfer, so the quality of the park golf ball can be trusted as well as the performance. has an improving effect.

도 1은 본 발명에 의한 파크골프공의 성형단계를 보인 사시도
도 2는 본 발명에 의한 파크골프공의 단면도
도 3, 4는 본 발명에 의한 파크골프공을 성형하기 위한 1차 금형 예시도
도 5, 6은 본 발명에 의한 파크골프공을 성형하기 위한 2차 금형 예시도
도 7은 본 발명에 의한 파크골프공을 성형하기 위한 3차 금형 예시도1 is a perspective view showing a molding step of a park golf ball according to the present invention;
2 is a cross-sectional view of a park golf ball according to the present invention;
3 and 4 are exemplary views of a primary mold for molding a park golf ball according to the present invention;
5 and 6 are exemplary views of a secondary mold for molding a park golf ball according to the present invention;
7 is an exemplary view of a third mold for molding a park golf ball according to the present invention;

이하, 본 발명에 의한 파크골프공의 제조방법 및 그 방법에 의해 제조된 파크골프공을 첨부된 도면과 관련하여 상세하게 설명하면 다음과 같다.Hereinafter, a method for manufacturing a park golf ball according to the present invention and a park golf ball manufactured by the method will be described in detail with reference to the accompanying drawings.

먼저, 파크골프공의 중심이 되는 핵(1)을 둘러싼 핵 커버(2)를 성형하기 위한 1차 금형(10), 핵 커버(2)의 외부에 중간층(6)을 형성하기 위한 2차 금형(20), 중간층(6)의 외부에 표면층(7)을 형성하기 위한 3차 금형(30)을 준비하고 파크골프공의 중심에 넣어지는 고무재질로 형성된 핵(1)을 준비한다.First, the primary mold 10 for forming the nucleus cover 2 surrounding the nucleus 1, which is the center of the park golf ball, and the secondary mold for forming the intermediate layer 6 on the outside of the nucleus cover 2 (20), prepare the tertiary mold 30 for forming the surface layer 7 on the outside of the intermediate layer 6, and prepare the core 1 formed of a rubber material that is put in the center of the park golf ball.

상기 1차, 2차, 3차 금형(10)(20)(30)은 파트라인(10-)에 의해서 각각 양쪽으로 분리되도록 구성되어 있다.The primary, secondary, and tertiary molds 10, 20, and 30 are configured to be separated on both sides by a part line 10-, respectively.

상기 1차 금형은 내부 중심에는 핵(1)을 지지하고 받쳐주기 위한 2개의 받침 돌기(11)가 형성되며, 또 핵의 둘레를 받쳐주기 위하여 등간격으로 4개의 돌출편(12)이 형성되어 있는데, 상기 4개의 돌출편(12)은 금형파트라인(10-1)을 중심으로 양쪽으로 분리되어 있고, 상기 4개의 돌출편 사이로 핵 커버(2)의 둘레에 등간격으로 4개의 돌출편(4)을 형성하기 위한 4개의 홈(13)이 형성되어 있다.(도3, 4참조)In the inner center of the primary mold, two support protrusions 11 are formed to support and support the nucleus 1, and four protruding pieces 12 are formed at equal intervals to support the circumference of the nucleus. There, the four protruding pieces 12 are separated on both sides around the mold part line 10-1, and between the four protruding pieces, four protruding pieces ( 4) are formed with four grooves 13 (see Figs. 3 and 4).

2차 금형은 핵 커버(2)의 외부에 중간층(6)을 형성하기 위한 것으로, 1차 금형의 내부 중심에는 핵을 지지하고 받쳐주기 위한 2개의 받침 돌기(11)와 대응하는 쪽에 홈(11-1)과 핵의 둘레를 받쳐주기 위하여 등간격으로 4개의 돌출편(12)과 대응하는 쪽에 홈(12-1)이 형성되어 있다.(도5, 6참조)The secondary mold is for forming the intermediate layer 6 on the outside of the nucleus cover 2, and in the inner center of the primary mold, there are two support protrusions 11 for supporting and supporting the nucleus and a groove 11 on the corresponding side. -1) and the grooves 12-1 are formed on the side corresponding to the four protruding pieces 12 at equal intervals to support the circumference of the nucleus. (See Figs. 5 and 6)

3차 금형은 중간층(6)의 외부에 표면층(7)을 형성하기 위한 것으로 파크골프공(8)의 지름과 동일한 성형홈을 갖는다.(도7참조)The tertiary mold is for forming the surface layer 7 on the outside of the intermediate layer 6 and has a molding groove equal to the diameter of the park golf ball 8 (see Fig. 7).

본 발명에 의한 파크골프공의 제조방법을 공정에 따라 상세하게 살펴본다.The manufacturing method of the park golf ball according to the present invention will be described in detail according to the process.

제 1공정1st process

1차 금형(10)에서 핵을 둘러싼 핵 커버(2)를 성형하는데, 상기 핵 커버(2)의 상·하 중심에 핵(1)을 받쳐주는 받침 돌기(11)에 의해서 형성된 구멍(5)과 4개의 돌출편(12)에 의해서 핵 커버(2)의 둘레에 등간격으로 4개의 홈(3)이 형성되고, 4개의 홈(3) 사이에 등간격으로 4개의 돌출편(4)이 형성되게 제1성형물(100)을 성형한다.A core cover (2) surrounding the nucleus is molded in the primary mold (10), and a hole (5) formed by a support protrusion (11) supporting the nucleus (1) in the upper and lower centers of the nucleus cover (2) Four grooves 3 are formed at equal intervals on the periphery of the core cover 2 by the and four protruding pieces 12 , and four protruding pieces 4 are formed at equal intervals between the four grooves 3 . The first molding 100 is molded to be formed.

상기와 같이 성형된 제1성형물(100)은 핵 커버(2)의 둘레에 등간격으로 형성된 4개의 홈(3)과 그 사이에 등간격으로 형성된 4개의 돌출편(4)은 핵 커버(2)의 파트선(2-1)을 기준으로 상부와 하부에 구성된다.The first molding 100 molded as described above includes four grooves 3 formed at equal intervals around the core cover 2 and four protruding pieces 4 formed at equal intervals therebetween are the core covers 2 . ) based on the part line 2-1 of the upper and lower parts.

제 2공정2nd process

1차 금형에서 성형된 핵을 둘러싼 핵 커버(2)가 성형된 제1성형물(100)을 2차 금형(20)에 넣고 핵 커버(2)에 형성된 4개의 홈(3)과 핵 커버(2)의 상·하 중심에 핵을 받쳐주는 받침 돌기(11)에 의해서 형성된 구멍(5)을 메꾸는 동시에 구멍(5)에는 돌출부(5-1)를, 4개의 홈(3) 반대쪽에는 돌출편(3-1)을 일체로 형성하고 핵 커버(2)에 형성된 4개의 돌출편(4)과 같은 두께로 중간층(6)이 형성된 제2성형물(200)을 성형한다.The first molded product 100 in which the nucleus cover 2 surrounding the nucleus formed in the primary mold is molded is placed in the secondary mold 20, and four grooves 3 and the nucleus cover 2 formed in the nucleus cover 2 are placed in the secondary mold 20. ) fills the hole 5 formed by the support protrusion 11 supporting the nucleus in the upper and lower center of the ), and at the same time fills the hole 5 with the protrusion 5-1, and on the other side of the four grooves 3, the protrusion piece (3-1) is integrally formed, and the second molded product 200 in which the intermediate layer 6 is formed to have the same thickness as the four protruding pieces 4 formed on the core cover 2 is molded.

제 3공정3rd process

2차 금형에서 핵 커버(2)의 외부에 중간층(6)이 형성된 제2성형물(200)을 3차 금형(30)에 넣고 중간층(6)에 형성된 돌출편(3-1)과 같은 두께로 표면층(7)을 성형하고 파트선(2-1) 및 이바리를 제거한 후 임의의 색상으로 컬러층을 형성하여 파크골프공(8)을 제조하는 것이다.(상기 1,2,3 공정은 도 1을 참조한다.)In the secondary mold, the second molded product 200 having the intermediate layer 6 formed on the outside of the nucleus cover 2 is placed in the tertiary mold 30 and has the same thickness as the protruding piece 3-1 formed in the intermediate layer 6 After forming the surface layer 7 and removing the part line 2-1 and Ibari, a color layer is formed in any color to manufacture the park golf ball 8. (Steps 1, 2, and 3 are shown in Fig. See 1).

이상과 같은 방법으로 제조된 파크골프공(8)은 1차 금형에서 핵(1)의 상·하, 그리고 둘레의 4개소를 받쳐준 상태에서 핵 커버(2)를 성형하기 때문에 사출기에서 합성수지가 압출될 때 발생하는 압력이 핵(1)의 중심을 이동시킬 수 없게 됨으로써, 핵 커버의 가운데에 완벽하게 핵이 매립되어 성형된다.The park golf ball 8 manufactured by the above method is molded with the core cover 2 in the state of supporting the top and bottom of the core 1 and 4 places around the core 1 in the primary mold, so the synthetic resin is extruded from the injection machine. Since the pressure generated when the nuclei 1 becomes unable to move the center of the nucleus 1, the nucleus is perfectly embedded in the center of the nucleus cover and formed.

그리고, 핵이 가운데 매립되고, 4개의 돌출편(4)이 형성된 핵 커버(2)를 2차 금형에 넣으면, 4개의 돌출편(4)이 2차 금형의 내면에 안착되어 정확한 위치에 중심을 잡게 되고, 이러한 상태에서 중간층(6)을 성형하면, 사출기에서 합성수지가 압출될 때 발생하는 압력이 4개의 돌출편(4)에 의해서 지지되므로, 핵이 가운데 매립된 핵 커버(2)의 중심을 이동시킬 수 없게 된다.Then, when the nucleus is embedded in the center and the nucleus cover 2 having the four protruding pieces 4 formed is put into the secondary mold, the four protruding pieces 4 are seated on the inner surface of the secondary mold to set the center at the correct position. If the intermediate layer 6 is molded in this state, the pressure generated when the synthetic resin is extruded from the injection machine is supported by the four protruding pieces 4, so the center of the nucleus cover 2 with the nucleus embedded in the center cannot be moved.

따라서, 핵 커버(2)에 형성된 4개의 홈(3)과 핵 커버(2)의 상·하 중심에 핵을 받쳐주는 받침 돌기(11)에 의해서 형성된 구멍(5)을 메꾸고 여기에 돌출부(5-1)를 형성하는 동시에 4개의 홈(3) 반대쪽에 돌출편(3-1)을 일체로 형성하고 핵 커버(2)에 형성된 4개의 돌출편(4)과 같은 두께로 중간층(6)을 성형할 수 있게 된다.Therefore, the holes 5 formed by the four grooves 3 formed in the core cover 2 and the supporting protrusions 11 supporting the core at the upper and lower centers of the core cover 2 are filled, and the protrusions ( 5-1) and at the same time forming the four protrusion pieces 3-1 on the opposite side of the four grooves 3 integrally, and the intermediate layer 6 with the same thickness as the four protruding pieces 4 formed on the core cover 2 can be molded.

상기와 같이 하여, 중간층(6)에 형성된 돌출부(5-1), 그리고 4개의 홈(3) 반대쪽에 돌출편(3-1)이 형성되어 있기 때문에 제2성형물(200)을 3차 금형에 넣게 되면, 3차 금형의 내면에 돌출부(5-1)와 돌출편(3-1)이 안착되어 정확한 위치에 중심을 잡게 되고, 이러한 상태에서 표면층(7)을 성형하기 때문에 사출기에서 합성수지가 압출될 때 발생하는 압력에 영향을 받지 않게 됨으로써, 표면층(7)이 일정한 두께로 성형될 수 있는 것이다.As described above, since the protrusions 5-1 formed in the intermediate layer 6 and the protrusions 3-1 are formed on the opposite side of the four grooves 3, the second molding 200 is placed in the tertiary mold. When inserted, the protruding part 5-1 and the protruding piece 3-1 are seated on the inner surface of the tertiary mold and centered at the correct position. Since the surface layer 7 is molded in this state, the synthetic resin is extruded from the injection machine. By not being affected by the pressure generated when it is made, the surface layer 7 can be molded to a constant thickness.

이상과 같은 본 발명에 의해서 제조된 파크골프공은 핵이 중심에 있고, 상기 핵을 중심으로 핵 커버와 중간층과 표면층을 이루는 각각의 두께가 일정하기 때문에 골퍼들이 경기를 할 때 파크골프공의 어느 위치에 타격을 가하더라도 파크골프공이 흡수하는 충격이 일정하기 때문에 골퍼들이 원하는 방향과 거리에 파크골프공을 날려보낼 수 있는 것이다.As described above, in the park golf ball manufactured by the present invention, the core is at the center, and the thickness of each of the core cover, the intermediate layer, and the surface layer is constant around the core. Since the shock absorbed by the park golf ball is constant even if a blow is applied to the location, the golfer can send the park golf ball to the desired direction and distance.

1: 핵
2: 핵 커버
3: 홈
3-1, 4: 돌출편
5: 구멍
6: 중간층
7: 표면층
10: 1차 금형
20: 2차 금형
30: 3차 금형
100: 제1성형물
200: 제2성형물1: nucleus
2: nuclear cover
3: Home
3-1, 4: protrusion
5: hole
6: middle floor
7: surface layer
10: primary mold
20: secondary mold
30: 3rd mold
100: first molding
200: second molding

Claims (3)

1차 금형(10)에서 핵을 둘러싼 핵 커버(2)를 성형하되,
상기 핵 커버(2)의 내부에 있는 핵(1)을 받쳐주는 받침 돌기(11)에 의해서 형성된 구멍(5)과 돌출편(12)에 의해서 핵 커버(2)의 둘레에 등간격으로 홈(3)이 형성되고, 상기 홈(3) 사이에 등간격으로 돌출편(4)이 형성된 제1성형물(100)을 성형하는 단계;
상기 제1성형물(100)을 2차 금형(20)에 넣고 핵 커버(2)에 형성된 4개의 홈(3)과 핵 커버(2)의 상·하 중심에 핵을 받쳐주는 받침 돌기(11)에 의해서 형성된 구멍(5)을 메꾸는 동시에 구멍(5)에는 돌출부(5-1)를 형성하고, 등간격으로 형성된 홈(3)의 반대쪽에는 돌출편(3-1)을 일체로 형성하며, 등간격으로 형성된 돌출편(4)과 같은 두께로 중간층(6)이 형성된 제2성형물(200)을 성형하는 단계;
상기 제2성형물(200)을 3차 금형(30)에 넣고 중간층(6)에 등간격으로 형성된 돌출편(3-1)과 같은 두께로 표면층(7)을 성형하는 것을 특징으로 하는 파크골프공의 제조방법.Molding the nucleus cover (2) surrounding the nucleus in the primary mold (10),
Grooves at equal intervals around the nucleus cover 2 by holes 5 and protrusions 12 formed by the support protrusions 11 supporting the nucleus 1 in the interior of the nucleus cover 2 ( 3) is formed, and forming the first molded product 100 in which the protruding pieces 4 are formed at equal intervals between the grooves 3;
The first molded product 100 is placed in the secondary mold 20, and the four grooves 3 formed in the core cover 2 and the support protrusions 11 that support the core in the upper and lower centers of the core cover 2 are provided. At the same time filling the hole 5 formed by forming a protrusion 5-1 in the hole 5, and integrally forming a protrusion piece 3-1 on the opposite side of the groove 3 formed at equal intervals, forming a second molding 200 in which the intermediate layer 6 is formed to the same thickness as the protrusion pieces 4 formed at equal intervals;
Park golf ball, characterized in that the second molding 200 is put into the tertiary mold 30 and the surface layer 7 is molded to the same thickness as the protrusion pieces 3-1 formed at equal intervals in the intermediate layer 6 manufacturing method. 제 1항의 방법에 의해서 핵을 둘러싼 핵 커버(2)와 상기 핵 커버(2)에 형성된 돌출편(4)과 같은 두께로 중간층(6)이 형성되고, 상기 중간층(6)에 형성된 돌출편(3-1)과 같은 두께로 표면층(7)이 형성된 것을 특징으로 하는 파크골프공.According to the method of claim 1, an intermediate layer 6 is formed with the same thickness as the nuclear cover 2 surrounding the nucleus and the protruding pieces 4 formed on the nucleus cover 2, and the protruding pieces formed on the intermediate layer 6 ( A park golf ball, characterized in that the surface layer (7) is formed with the same thickness as 3-1). 제 1항에 있어서, 상기 핵 커버(2)의 상·하 중심에 핵(1)을 받쳐주는 받침 돌기(11)에 의해서 형성된 구멍(5)이 상하에 형성되고, 등간격으로 형성된 4개의 돌출편(12)에 의해서 핵 커버(2)의 둘레에 등간격으로 4개의 홈(3)이 형성되고, 4개의 홈(3) 사이에 등간격으로 4개의 돌출편(4)이 형성된 제1성형물(100)을 포함하는 것을 특징으로 하는 파크골프공의 제조방법.According to claim 1, wherein the hole (5) formed by the support projections (11) supporting the nucleus (1) at the upper and lower centers of the core cover (2) are formed at the top and bottom, and four protrusions formed at equal intervals A first molded product in which four grooves 3 are formed at equal intervals around the core cover 2 by the piece 12 and four protruding pieces 4 are formed at equal intervals between the four grooves 3 . (100) A method of manufacturing a park golf ball, characterized in that it comprises.
KR1020200005793A 2020-01-16 2020-01-16 Park golf ball manufactured by the method and method of park golf ball KR20210092426A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102450941B1 (en) 2022-03-31 2022-10-14 케이트레이드 주식회사 Manufacturing method of park golf ball
KR102450940B1 (en) 2022-03-31 2022-10-25 케이트레이드 주식회사 park golf ball

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980080747A (en) 1997-03-28 1998-11-25 바흐르도날드알 Golf ball with cover including three or more layers

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980080747A (en) 1997-03-28 1998-11-25 바흐르도날드알 Golf ball with cover including three or more layers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102450941B1 (en) 2022-03-31 2022-10-14 케이트레이드 주식회사 Manufacturing method of park golf ball
KR102450940B1 (en) 2022-03-31 2022-10-25 케이트레이드 주식회사 park golf ball

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