KR20170045844A - Golf ball having two colors and method and device for manufacturing the same - Google Patents

Golf ball having two colors and method and device for manufacturing the same Download PDF

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Publication number
KR20170045844A
KR20170045844A KR1020150145834A KR20150145834A KR20170045844A KR 20170045844 A KR20170045844 A KR 20170045844A KR 1020150145834 A KR1020150145834 A KR 1020150145834A KR 20150145834 A KR20150145834 A KR 20150145834A KR 20170045844 A KR20170045844 A KR 20170045844A
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KR
South Korea
Prior art keywords
cutting
golf ball
spherical
ball
land
Prior art date
Application number
KR1020150145834A
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Korean (ko)
Inventor
미츠히로 사소
Original Assignee
미츠히로 사소
타카노 토키요시
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Priority to KR1020150145834A priority Critical patent/KR20170045844A/en
Publication of KR20170045844A publication Critical patent/KR20170045844A/en

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    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B45/00Apparatus or methods for manufacturing balls
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B37/00Solid balls; Rigid hollow balls; Marbles
    • A63B37/0003Golf balls
    • A63B37/0004Surface depressions or protrusions
    • A63B37/0006Arrangement or layout of dimples
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B37/00Solid balls; Rigid hollow balls; Marbles
    • A63B37/0003Golf balls
    • A63B37/0022Coatings, e.g. paint films; Markings
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B45/00Apparatus or methods for manufacturing balls
    • A63B45/02Marking of balls

Abstract

A different color golf ball in which the non-circular dimple portion and the other spherical land portions are different in coloration, and a manufacturing method and an apparatus for the same. A golf ball having a golf ball formed on its surface with a color of a base cover layer of a spherical land portion and a color of a non-circular dimple portion formed on a surface of the golf ball, the golf ball having a curvature substantially equal to a spherical surface of a spherical land portion other than non- And the cutting cylinder is advanced with respect to the ball while rotating the cutting cylinder about the axis of the golf ball so that the cutting edge of the golf ball surface is moved forward with respect to the ball, The surface of the spherical land portion is polished or cut, and the coating of the spherical land portion other than the non-circular dimple is peeled off and formed on the surface of the golf ball.

Description

TECHNICAL FIELD [0001] The present invention relates to a golf ball having an unidirectional shape,
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a golf ball having a dichromatic shape on its surface, and a method and apparatus for manufacturing the golf ball.
The golf ball may be painted with white or chromatic colors on the cover layer of the outermost surface, and then the necessary characters may be printed and then painted with clear paint. Therefore, the surface color of the golf ball is usually monochromatic. However, if the dimple formed on the surface of the golf ball is changed from a circular shape to a non-circular shape in recent years, the area occupied by the land portion other than the dimple on the surface is increased, and if the land portion is colored with a color different from that of the non- So that the appearance of the golf ball can be improved, and thus an attempt has been made. Therefore, it has been studied that the dimples of the surface dimples of the golf ball and the color of the lands are made different from each other to give a two-color pattern (Patent Documents 1 and 2).
Patent Document 1: Chinese Patent Patent ZL2010-3-0134570. 2 Patent Document 2: Japanese Laid-Open Patent Publication No. 2011-245269
The uniqueness of the golf ball can be realized by making the dimples of the surface and the lands of the surface different from each other. However, how to make the dimples of the surface and the lands different in color is a problem. It is conceivable to paint the dimple portion and the land portion of the golf ball surface by masking to form a uni-color pattern. However, when the required portion is not completely masked or the surface coating is uneven, the coating color of the dimple portion and the land portion are completely distinguished It may become difficult. Therefore, at least a colored base cover layer is formed on the golf ball core to form a golf ball, a plurality of non-circular dimples are formed on the spherical surface, and the golf ball is painted on the surface of the golf ball with a color different from that of the base cover layer. The surface coating of the spherical land portion other than the non-circular dimple of the ball is polished or cut to expose the base cover layer to form a dichromatic shape composed of the color of the base cover layer of the spherical land portion and the coating color of the non-circular dimple portion on the surface of the golf ball (Patent Document 2). However, since it is required to form a belt-shaped portion once the cutting margin is provided on the equatorial portion and is limited to circular dimples. In the non-circular dimple, since a relatively large land portion is formed on the entire surface of the golf ball, It is difficult to cut and peel the negative coating film. Accordingly, it is an object of the present invention to provide a novel method of forming a dichroic surface on the surface of a golf ball, and to provide a golf ball having a unidirectional shape using a land formed by the non-circular dimple.
In the present invention, 1) there is a difference in height between the spherical land portion of the golf ball and the dimple portion formed on the spherical surface. This is because at least a colored base cover layer is mounted on the ball core, a plurality of non-circular dimples are distributed on the spherical surface of the golf ball, and the base is coated with a color different from that of the base cover layer (Fig. Thereupon, 2) the golf ball of this level difference polishes or cuts the surface coating of the spherical land portion other than the non-circular dimple to expose the base cover layer (see Fig. The present inventors have paid attention to using a cutting cylinder in which a polishing surface having substantially the same curvature as the spherical land portion is formed in an annular shape. When the annular cutting surface is rotated and brought into contact with the spherical land portion in the same direction while giving the balls, the cutting surface of the ball is polished by sliding in different directions (Fig. 2). It is found that the coating of the land portion is polished or cut off in succession to expose the base cover layer without any hindrance, and the present invention has been completed based on this finding.
That is, in the present invention, at least a colored base cover layer is mounted on the ball core, a plurality of non-circular dimples are distributed on the spherical surface of the golf ball, and the base is covered with a color different from that of the base cover layer (Fig. 1B), the golf ball is moved from the base cover layer of the spherical land portion and the dichroic pattern of the color of the non-circular dimple portion to the golf ball of the golf club In forming the surface of the ball, the following apparatus is used. In this apparatus, a cutting cylinder (Fig. 3) having a polishing surface having a curvature almost equal to the spherical surface of the spherical land portion other than the non-circular dimple of the golf ball is used. A plurality of cutting cans are provided so as to be movable in the horizontal direction with respect to the golf ball (Fig. 2). The cutting cans are advanced with respect to the axis of the golf ball receiving the squeezed water, When the surface of the spherical land portion is polished or cut (Fig. 5), the coating of the spherical land portion other than the non-circular dimple is peeled off.
In the present invention, plasma is applied to the entire surface of the golf ball to coat the whole surface of the golf ball, and the coating of the spherical land portion other than the non-circular dimple is peeled off, followed by clear coating, followed by drying and finishing.
According to the present invention, since a cutting cylinder having a polishing surface with a curvature almost equal to that of the spherical surface is used only in the spherical land portion other than the non-circular dimple of the golf ball, the cutting cylinder is rotated around the shaft center The surface coating of only the spherical land portion can be polished or cut. Since the chip is always washed with water at the time of polishing or cutting, coating of the spherical land portion other than the non-circular dimple can be peeled off without trouble.
In Fig. 1, Fig. 1A is a plan view of a golf ball having non-circular dimples painted with one front color.
In Fig. 1, Fig. 1B is a plan view of a golf ball polished with the paint of the spherical land portion of the golf ball of Fig. 1A.
1 is a plan view of a golf ball in which a coating of a spherical land portion of another golf ball is polished. In a typical dimple provided on a spherical surface of a golf hole, the bottom surface is curved and gradually deeper toward the center from the edge toward the center (see Fig. 7A). In the bone, dimples form shallower, ridges protrude at almost right angles, (See Fig. 7b), and a controlled turbulence state different from the conventional one is formed in the dimple in the main body. As a result, the air surrounds the outer surface of the dimple air layer And does not directly contact the ball surface, resulting in a decrease in resistance at the time of generation of the same lift.
2 is a perspective view of a polishing apparatus for a golf ball surface.
Fig. 3 is a plan view showing the disposition of the cutting cylinder at the time of polishing the surface of the golf ball. Fig.
4 is a perspective view of the cutting barrel tip of the present invention.
5 is a plan view showing a state of a cutting cylinder at the time of surface polishing of a golf ball.
6 is a partially broken perspective view of the golf ball distribution means.
7 is a comparative image of experimental results of a conventional spherical bottom dimple (a) and a flat bottom dimple (b) of the present invention. On the other hand, the outer circumferential air flow is conventionally in contact with the ball surface, Lt; / RTI >
DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
In the present invention, as shown in Fig. 1A, at least a colored base cover layer is covered with an intermediate layer or the like on the ball core. At the same time, a plurality of non-circular dimples are formed on the spherical surface of the golf ball and then painted thereon in a color different from that of the base cover layer. A non-circular dimple formed on the surface of the golf ball is formed as follows. 1) A virtual polyhedron (a polyhedron formed by equally dividing an icosahedron into equilateral triangles or a hexagon) is inserted into a sphere having a radius R, and the spherical surface is divided into contacts inside the polyhedron. And a non-circular dimple composed of a pair of arcs is formed along the ridge line of the divided spherical surface. Alternatively, as shown in Fig. 1 (c), a circular shape or a hexagonal shape similar to the shape of the circle is formed at regular intervals on the spherical surface divided by the hexagonal inscribed polyhedron to form multiple shapes. A vortex in which a trough surrounded by multiple opposing ridges collides against a front ridge is generated so that an air layer different from the laminar flow flowing around the ball surface by the formation of this vortex is formed between the ball surface have. Therefore, the present invention is widely applied in the case of forming the shape classified into the color in the dimple and the color in the land on the ball surface. Normally, the bottom surface of the non-circular dimple has a depth of 0.05 mm to 0.25 mm, preferably 0.08 to 0.20 mm, which is gradually increased from the periphery to a depth of the dish. The bottom surface is 0.05 mm to 0.25 mm, 0.20 mm short radius R 'spherical bottom surface. It is preferable to form the non-circular recessed portion from the dimple ridge to the wall surface immediately below the dimple bottom surface, and the dimple ridge is preferably formed to stand from the bottom surface. A non-circular convex portion is uniformly distributed and formed in the spherical land portion. When the surface coating of the spherical land portion other than the non-circular dimple of the golf ball is polished or cut, since the base cover layer is exposed, the golf ball shown in Fig. 1B is formed with the color of the base cover layer of the spherical land portion and the color of the non- It is finished with an unusual golf ball with a shape.
When the golf ball 10 is formed on the surface of the golf ball with the color of the base cover layer 13 of the spherical land portion 11 and the unidirectional shape of the non-circular dimple portion 12 of the coating color, Device. The dichromatic pattern manufacturing apparatus is formed of a dispensing means 20, a cutting means 100 and a discharging means 40. The dispensing means 20 has a function of receiving and distributing the ball of FIG. 1A, It forms a funnel shape. The cutting means 100 is located at the lower part of the distribution means 20 and the cutting cylinder advances and retracts from three directions to cut the surface of the ball in Fig. The discharging means 40 was formed of a box for discharging the balls of the cut FIG. 1B.
The cutting means 100 is equipped with the cutting cylinder 110 shown in Fig. The cutting cylinder 110 is arranged so as to be movable from three directions toward the radial direction A with respect to the ball 10 in the cutting position and to rotate in one direction B (Fig. 3). This cutting cylinder 110 can contact the spherical land portion 11 other than the non-circular dimple 12 of the golf ball (Fig. 1A) painted with a different color from the cover layer along its spherical surface (Fig. 5) (Fig. 3). The trench 112 extending in the annular radial direction at an interval equal to the circumferential direction is formed on the annular polishing surface 111 (Fig. 4). Therefore, the chip is flowed into the intermediate space of the cutting cylinder 110 through the trenches 112 and the like due to the following number of cycles at the time of cutting.
The annular cutting cylinder 110 is rotatable in the B direction by a motor 121 disposed above the turntable 120 and a driving roller 123 connected to the rope 122. Further, the cutting cylinder 110 is forwardly rotated by the hydraulic type advancing and retracting device 124, and stops rotating after a predetermined cutting time and returns to the rear. The cutting cylinder 110 is rotatable around the axis, and is movable in the radial direction A with respect to the ball 10 at the cutting position. The golf ball is rotatably installed by the second stopper at this cutting position. With respect to the golf ball 10, the cutting cylinder 110 picks up the ball in three directions at an interval of 120 degrees from its horizontal position, as shown in Fig. And a syringe means 200 for applying syringe water from above to the ball surface at the cutting position (Fig. 2). The cutting torch 110 is rotated while advancing the toroidal cutting cylinder 110 with respect to the ball 10 which is delivered to the cutting position 30 and arranged as a rotatable member so that the cutting edge surface 111 is moved to the spherical land portion 11 other than the non- (Fig. 5). Then, the surface coating of the spherical land portion is polished or cut with the cutting cylinder 110 while being injected through the injecting means 200, and the coating of the spherical land portion other than the non-circular dimple is peeled off. Thereafter, the annular cutting cylinder 110 is retracted and discharged to the discharge box 40.
The front coated golf ball (FIG. 1A) uses the dispensing means 20 to send one at each cutting position. The distribution means 20 is composed of a funnel-shaped receiving portion 21 disposed above the cutting position and a cylindrical distribution pipe 22 installed at the center thereof and rotating in the direction E around the central axis. Shaped distribution pipe 22 includes an agitating part 23 protruding in the radial direction and an opening 24 opened in the wall. With the rotation of the tubular distribution pipe 22, the stirring portion stirs the ball 10 deposited in the funnel-shaped receiving portion 21. The agitated ball is guided into the tubular distribution pipe 22 through the opening 24 provided in the wall of the vessel and is sent to the lower cutting position.
Above the ball cutting position (30), a first stopper (31) capable of opening and closing an outlet of a tubular delivery pipe of a golf ball is positioned. On the other hand, a second stopper 32 is disposed below the ball cutting position 30 to hold the ball at the cutting position. The discharge port 40 of the golf ball is positioned at the lower portion of the cutting position 30 via the second stopper 32 which can be opened and closed and the first stopper 31 are retracted in the direction D and released, the balls can be distributed to the cutting position 30 one by one. The annular cutting cylinder 110 is advanced and polished or cut with respect to the ball 10 distributed to the cutting position 30. After the annular cutting cylinder 110 is retracted from the ball 10 and the second stopper 32 is retracted and opened after the required portion is polished or cut, the processed ball 10 is sent to the outlet 40, When the first stopper 31 is retracted after the second stopper 32 is advanced and closed, the next ball 10 can be sent to the cutting position 30 from the outlet of the cylindrical delivery pipe 22.
Thus, the golf ball (FIG. 1A) of the front coat is dropped from the funnel-shaped receiving portion 21 to the delivery cylinder 22 via the opening 24. When the first stopper 31 is opened, the balls in the delivery cylinder 22 fall into the cutting position 30, and when the cutting cylinder 110 is rotated in three directions with respect to the ball, the spherical land portion is polished and peeled, The land portion 11 is exposed and the base cover layer 13 is exposed (Fig. 1B). Thereupon, when the second stopper 32 is retracted and opened, the polished ball 10 falls into the discharge box 40 and comes out along a slope. Insufficient surface condition is corrected by hand, and then plasma is irradiated on the whole surface, and it becomes state that it is easy to put on coating, and finally, it carries out clear coating, and is dried, and is made into finished product.
10 ... Golf ball
20 ... Golf ball receiving portion
30 ... Cutting position
40 ... Discharge box
100 ... Unique cutting device
110 ... Cutting barrel
200 ... Main means

Claims (7)

  1. A plurality of non-circular dimples are distributed and formed on the spherical surface of the golf ball, and the golf ball is painted thereon with a color different from that of the base cover layer, and a spherical land other than the non- The surface of the base cover is exposed by polishing or cutting a part of the surface of the golf ball to form the uneven color formed by the color of the base cover layer of the spherical land portion and the color of the non-circular dimple portion,
    A cutting cylinder having a polishing surface having a curvature almost equal to the spherical surface of the spherical land portion other than the non-circular dimple of the golf ball is used, and a plurality of cutting cylinders are provided so as to be movable in the horizontal direction with respect to the golf ball, The cutting cylinder is advanced with respect to the ball while rotating the cutting cylinder around the axis, and the top polishing surface is brought into contact with the spherical land portion other than the non-circular dimple to polish or cut the surface coating of the spherical land portion, And the coating is peeled off.
  2. The method according to claim 1,
    A method for producing a unique golf ball, comprising the steps of: irradiating the entire surface of the golf ball with a plasma; coating the spherical land portion other than the non-circular dimple; peeling the golf ball;
  3. An apparatus for forming, on a surface of a golf ball, a color of a base cover layer of a spherical land portion and a dichromatic shape formed of a coating color of a non-circular dimple portion,
    A spherical land portion other than the non-circular dimple of the golf ball painted in different color from the cover layer as a whole is formed in an annular shape on the tip end with a curved surface having a curvature substantially equal to that of the spherical surface contactable along the spherical surface, And an annular cutting barrel provided with trenches extending in an annular radial direction at intervals in the circumferential direction of the golf ball, wherein the annular cutting barrel is rotated at an interval of 120 degrees from its horizontal position with respect to the golf ball installed as a rotator at the cutting position of the golf ball. And a means for supplying water to the ball surface at a cutting position. The ball is disposed at a cutting position and is disposed rotatably with respect to the ball, And the advanced polishing surface is pushed to the spherical land portion other than the non-circular dimple And the surface of the spherical land portion is abraded or cut to separate the spherical land portion other than the non-circular dimple, and then the annular cutting cylinder is retracted and discharged.
  4. The method of claim 3,
    The distribution means for sending the golf balls to the cutting position one by one is composed of a funnel-shaped receiving portion disposed above the cutting position and a tubular distribution tube installed at the center thereof and rotating around the axis, A stirrer provided in a cylindrical wall of a distribution pipe and protruding in the radial direction and an opening portion opened to the wall are provided and the ball accumulated in the funnel-shaped catcher is stirred with the rotation of the cylindrical distribution pipe Wherein the ball is agitated in a funnel-shaped receiving part through an opening provided in a bottom wall and guided into a tubular delivery pipe to be sent to a lower cutting position.
  5. 5. The method of claim 4,
    The outlet end of the cylindrical delivery pipe of the golf ball is placed via a first stopper capable of being opened and closed and the starting end of the discharge port of the golf ball is positioned at the lower part of the ball cutting position via the second stopper, The first stopper is opened while the second stopper is closed to distribute the balls one by one to the cutting position and the annular cutting cylinder is advanced with respect to the balls distributed at the cutting position to polish or cut, , The annular cutting cylinder is retracted from the ball, and the second stopper is opened to send the processed ball to the discharge port. Then, after the second stopper is closed, the first stopper is opened and the next ball Is sent to the cutting position.
  6. A non-circular dimple formed on the surface of a golf ball manufactured by the method of claim 1 is characterized in that a virtual polyhedron is inserted in a sphere having a radius R and the spherical surface is divided into a polygonal spherical surface formed by a polyhedral inner contact, The bottom surface of the dimple rim is formed to have a minor radius R 'of 0.05 mm to 0.25 mm, preferably 0.08 to 0.20 mm, more than the spherical radius R, and a non-circular recessed portion extending from the dimple ridge to the bottom surface of the dimple is formed, A ridge wall surface is formed and the non-circular recess is evenly distributed on the spherical land portion, and the surface coating of the spherical land portion other than the non-circular dimple of the golf ball is polished or cut to expose the base cover layer, And the color of the base cover layer and the color of the non-circular dimple portion.
  7. The golf ball having the spherical land portion and the non-circular dimple is painted with a color different from that of the base cover layer, and then the coating of the spherical land portion is removed to expose the base cover layer. The color of the golf ball and the color of the non-circular dimple portion In a ball formed on the surface of a golf ball,
    Circular spherical land portions other than the non-circular dimples of the golf ball 10 painted in different colors from the base cover layer as a whole can be contacted along the spherical surface so that an annular polishing surface having a curvature substantially equal to the spherical surface thereof And an annular cutting cylinder in which the annular polishing surface is divided by a cutting trench extending in an annular radial direction at even intervals in the circumferential direction is provided on a golf ball provided with a rotating material at a cutting position of the golf ball, The apparatus being capable of extending radially from three directions at 120 degree intervals in a horizontal plane and being rotatable around its axis and being able to advance and retract radially from the horizontal plane with respect to the balls at the cutting position, (10), which is delivered from the distribution means (20) to the cutting position (30) and arranged rotatably, The cutting tool 110 is advanced in the direction A while rotating the cutter 110 and the cutting tool 111 is brought into contact with the spherical land portion other than the non-circular dimple while feeding the cutting tool 111 through the main feeder 200 to polish or cut the surface coating of the spherical land portion The cutting chips of the land portion are washed away from the cutting trench and the coating of the spherical land portion is peeled off.
KR1020150145834A 2015-10-20 2015-10-20 Golf ball having two colors and method and device for manufacturing the same KR20170045844A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109107118A (en) * 2017-06-23 2019-01-01 天津市赫恩思体育用品有限公司 One bulb liner twines yarn feeding device
US10894188B2 (en) 2018-07-25 2021-01-19 Acushnet Company Golf ball dimple patterns including stars and stripes and color

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109107118A (en) * 2017-06-23 2019-01-01 天津市赫恩思体育用品有限公司 One bulb liner twines yarn feeding device
US10894188B2 (en) 2018-07-25 2021-01-19 Acushnet Company Golf ball dimple patterns including stars and stripes and color

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