JP3806137B1 - Manufacturing method of pachinko balls - Google Patents

Abstract

A pachinko ball capable of recording a large amount of information such as manufacturing history information and amusement store information.
An information recording area 2 having a predetermined width extending along the equator line R of the sphere is formed on the surface of the sphere, and an elongated unit marking area extending along the equator line R extends along the equator line R. A plurality of linear marking scheduled areas are formed so as to form a row, and the information recording area 2 is configured by providing a plurality of the linear marking scheduled areas in parallel with the equator line R, and each unit marking scheduled By recording predetermined information in the information recording area 2 based on the presence or absence of an elongated marking extending along the equator line R in the area, a large amount of information such as manufacturing history information and game shop information can be recorded.
[Selection] Figure 1

Description

The present invention relates to a method for producing a pachinko ball used in a pachinko gaming machine.

  In general, game machines such as pachinko machines rent out game media such as pachinko balls used for pachinko machines and game medals used for pachislot machines in exchange for money. To play in the game machine. Normally, the game media used in each game store have substantially the same shape, while the authenticity of the game media thrown into the gaming machine is determined by the shape of the game media. Therefore, when a game medium of another game store is brought in, there is a problem that the game store suffers damage.

Therefore, a game medal with a two-dimensional code recorded on the surface is assumed to prevent fraud when a game medium of another game store is brought in or when a counterfeit game medium is brought in. It is disclosed (Patent Document 1 below).
In addition, a pachinko ball is disclosed in which a plurality of different ball values are set on the pachinko ball, and the ball value is identified by a single line or double line marking formed on the ball surface (Patent Document 2 below).
JP 2003-144739 JP 2003-181104 A

  Here, pachinko balls and other gaming media have a monetary value that can be exchanged for prizes in the amusement store, but once they leave the store, the recognition that they have monetary value fades. It has been treated as a simple metal sphere. As a result, in reality, it cannot be said that strict management is performed for pachinko balls after the process leading up to the amusement store in the manufacturing stage, the distribution stage, etc., and after the amusement store is closed.

  Therefore, even if a pachinko ball, etc. scattered or lost due to a truck accident in the distribution process or a pachinko ball taken from a closed amusement store is brought into another amusement store and used, it is not known. Stores suffer damage and there are limits to improving the trust of the industry as a whole.

  On the other hand, the pachinko ball itself is only a metal ball having a diameter of about 11 mm, and there is a problem that it is extremely difficult to determine authenticity or history.

  That is, the method of Patent Document 1 forms a two-dimensional code on a plane of a game medal that has a plane with a certain area. Naturally, this method is applied to a pachinko ball having a diameter of 11 mm as it is. It is not possible.

  Moreover, the method of the above-mentioned patent document 2 identifies the ball value by a simple stamp such as a single line or a double line, and can determine only two or three kinds of ball values. A lot of information such as history information such as month and day and information of the game shop itself cannot be recorded on the pachinko ball itself.

  Furthermore, even if the name of the amusement store is engraved on the surface of the pachinko ball, there are many similar pachinko hall names themselves, and there are also pachinko balls that are not engraved normally. Therefore, after all, even if the pachinko ball is viewed, it is impossible to specify a game shop or obtain history information from the pachinko ball.

The present invention has been made in order to solve such problems, and pachinko that can record a lot of information such as history information such as a factory, a manufacturing date, and information on a game shop itself on a pachinko ball itself. It aims at providing the manufacturing method of a ball | bowl.

In order to achieve the above object, a method for producing a pachinko sphere of the present invention comprises:
Using a rolling mold in which a concave groove having a concave curved surface along the curvature of the surface of the metal sphere is formed, a method for manufacturing a pachinko sphere that performs stamping on the surface of the metal sphere by rolling,
On the inner surface of the rolling groove,
A plurality of elongated unit convex portion formation scheduled areas extending along the longitudinal direction of the concave groove are provided so as to form a line along the longitudinal direction, thereby forming a linear convex formation planned region, and forming the linear convex portion A plurality of planned areas are provided in parallel with the longitudinal direction of the groove to form an information writing area,
Predetermined information is recorded in the information writing area, depending on the presence or absence of elongated marking protrusions extending along the longitudinal direction in each unit protrusion formation scheduled area,
An index marking projection forming portion serving as an index for determining a reading start point and a reading direction of the information recorded in the information writing region is formed in the unit writing portion formation inside and / or outside the information writing region. It is formed and provided as an elongated stamped convex part extending along the longitudinal direction of the groove, similar to the stamped convex part in the planned region,
The gist of the invention is to form an information recording area having a predetermined width extending along the equator line of the sphere by performing the marking on the sphere surface of the metal sphere by rolling using the rolling mold .

That is, in the manufacturing method of the pachinko sphere according to the present invention, the elongated unit protrusion forming regions extending along the longitudinal direction of the groove form a row along the longitudinal direction on the inner surface of the rolling groove. A plurality of the linear projected portion formation planned areas are formed, and a plurality of the linear projected section formation planned areas are provided in parallel with the longitudinal direction of the groove to form an information writing area. Predetermined information is recorded in the information writing area depending on the presence or absence of the elongated marking protrusion extending along the longitudinal direction in each unit protrusion formation scheduled area.
  An information recording area having a predetermined width extending along the equator line of the sphere is formed on the surface of the sphere by stamping the sphere surface of the metal sphere using the rolling mold. In this manner, the information recording area can be formed relatively easily by rolling, and a large amount of information can be recorded easily and reliably on a pachinko sphere that is a metal sphere having a diameter of about 11 mm. . In addition, the long and narrow marking protrusions formed in the unit protrusion formation planned area form a row in the longitudinal direction, and a plurality of information writing areas are formed in the width direction, and the marking protrusion and the information writing area are Since it is formed in a direction along the rolling direction, it is possible to prevent the mold from being damaged during rolling, to prevent information loss and damage, and to reliably record predetermined information on a pachinko ball. .
  In addition, since the index for determining the reading start point and the reading direction of the information recorded in the information recording area is provided in and / or outside the information recording area, the unit marking scheduled area is the equator. The information recording area formed side by side in two directions, the line direction and the direction intersecting with it, is formed in a band shape along the equator line of the sphere, so that the information reading start point and reading direction can be easily determined. Information can be read and utilized reliably and easily. In addition, since the index is formed in the direction along the rolling direction, it prevents the mold from being damaged during rolling, prevents information loss and damage, and reliably records predetermined information on pachinko balls. can do.

The pachinko balls manufactured as described above are provided with a plurality of elongated unit marking areas extending along the equator line so as to form a line along the equator line. The information recording area is configured by providing a plurality of the linear marking scheduled areas in parallel with the equator line. As a result, the information recording areas are arranged in two directions, in which the unit marking scheduled areas are in the direction of the equator line and in the direction intersecting therewith. Predetermined information is recorded in the information recording area according to the presence or absence of an elongated marking extending along the equator line in each unit marking scheduled area. Thereby, in the information recording area in which the unit marking scheduled area is formed side by side in the equator line direction and the direction intersecting with the equator line direction, depending on the presence or absence of marking in each unit marking planned area, for example, manufacturing history information / game shop information・ A lot of information such as authenticity information can be recorded.

Furthermore, since the marking formed in each unit marking planned area is an elongated marking extending along the equator line, it can be formed relatively easily by a method such as rolling, and has a diameter of 11 mm. A large amount of information can be recorded easily and reliably on a pachinko sphere which is a metal sphere of a certain degree. In addition, since the information recording area is an area having a predetermined width extending along the equator line of the sphere, even if it is a sphere, two-dimensional information recording using two vertical and horizontal directions can be performed and information that can be recorded You can also increase the amount.

Therefore, it is possible to record a lot of information such as manufacturing history information, amusement store information, authenticity information, etc. on the pachinko ball itself, such as the factory, date of manufacture, etc. It becomes possible to investigate information retrospectively. As a result, the process up to the amusement store at the manufacturing stage, distribution stage, etc., and after the amusement store is closed, the pachinko ball can be managed strictly, reducing the damage to the amusement store and the industry as a whole. The trust of can be improved.

In the present invention, when an index for determining a reading start point and a reading direction of information recorded in the information recording area is provided within and / or outside the information recording area, unit marking is provided. The information recording area in which the planned area is arranged in two directions, the equator line direction and the direction intersecting with it, is formed in a band shape along the equator line of the sphere, so the information reading start point and reading direction can be easily By deciding, information can be read and used reliably and easily.

Moreover, the pachinko ball package of the present invention is packed with the pachinko ball according to claim 1, and information including at least information recorded in the information recording area of the pachinko ball according to claim 1 is recorded in the package. A label is attached. As a result, information including information recorded on the pachinko ball is affixed to the packaging, and thus the above information such as manufacturing history information can be used even in the distribution process, thereby enabling traceability.
The label may be provided with a two-dimensional code in which information including at least information recorded in the information recording area of the pachinko sphere is recorded.
Further, the label may be provided with an IC on which information including at least information recorded in the information recording area of the pachinko sphere is recorded.

  Next, the best mode for carrying out the present invention will be described.

  1 to 4 show an embodiment of the pachinko sphere of the present invention.

  FIG. 1 is a view showing the appearance of a pachinko ball 1 of the present invention. The pachinko ball 1 is formed in a spherical shape using a steel material such as carbon tool steel as a raw material, for example, and as shown in FIG. 1 (A), a predetermined extension extending along the equator line R of the sphere on the sphere surface. An information recording area 2 having a width is formed. In this example, the pachinko sphere 1 is a sphere having a diameter of approximately 11 mm.

  As shown in FIG. 1B, the information recording area 2 includes an A area that substantially circulates the sphere along the equator line R, and a halve that approximately circulates along the equator line R on the opposite side of the A area. Are formed in two regions, respectively, and the entire outer periphery of the pachinko ball 1 is provided so as to make one round. The information recording area 2 of the A area and the B area is an area having a substantially rectangular shape formed as a contrast with the equator line R as an axis in the longitudinal direction when developed on a plane.

  Therefore, the dimension in the longitudinal direction of each information recording area 2 is not more than half of the circumferential length of the equator line R of the sphere in a state where the information recording area 2 is developed in a plane. In the case of a sphere having a diameter of about 11 mm, it is set to about 17.2 mm or less. In addition, the width dimension of each information recording area 2 is preferably set to about 50% or less of the diameter of the sphere in a state where the information recording area 2 is developed in a plane, and more preferably 40% or less of the diameter. In the case of a sphere having a diameter of about 11 mm, the length is preferably about 5.5 mm or less, and more preferably 4.4 mm or less.

  If the width dimension is too large, it will not be a rectangular region in a state of being spread on a plane, so that it will not be suitable for information recording in the two directions of the equator line R direction and the direction orthogonal thereto, as will be described later. is there. Further, as will be described later, when information recording is performed by rolling, the marking becomes difficult at a position away from the equator line R, which is not preferable from the viewpoint of the mold life and the sharpness of the marking.

  The same information may be recorded in the A area and the B area, or different information may be recorded. When different information is recorded in the A area and the B area, the amount of information is simply doubled, so that more information can be recorded on the pachinko ball 1 itself. Further, when the same information is recorded in the A area and the B area, even if the information in one area cannot be read for some reason, the information can be read from the other area, and the information can be backed up in one pachinko ball 1 Can do.

  FIG. 2 is a diagram showing details of the information recording area 2. As shown in FIG. 2A, the information recording area 2 has a plurality of elongated unit marking scheduled areas 3 extending along the equator line R so as to form a line along the equator line R. The information recording area 2 is configured by forming a predetermined marking area 4 and providing a plurality of the linear marking areas 4 in parallel with the equator line R.

  More specifically, the unit marking scheduled area 3 is a rectangular area extending along the equator line R, and each unit marking planned area 3 extends along the equator line R shown in FIG. It is provided as a region where the elongated engraving 6 can be formed.

  The unit marking scheduled areas 3 are arranged so as to form a plurality of rows in the direction of the equator line R, thereby forming a linear marking scheduled area 4. In this example, ten unit marking scheduled areas 3 form a line and the linear marking scheduled area 4 is formed.

  On the other hand, nine unit marking scheduled areas 3 are arranged in a plurality of rows in the equatorial line R direction, and an index marking forming portion 7 longer than the unit marking planned area 3 is arranged at the end, so that the preliminary linear marking is performed. A planned area 5 is formed. In this example, the index marking forming unit 7 is set to be twice as long as the unit marking scheduled area 3, and the preliminary linear marking scheduled area 5 is one unit marking planned area 3 than the linear marking scheduled area 4. Only getting longer.

  In this example, the above-mentioned linear marking scheduled areas 4 are arranged in nine rows in parallel with the equator line R, and the preliminary linear marking scheduled areas 5 are arranged in parallel in one row, and the information recording area 2 is composed of these 10 rows. Is formed.

  In the index marking forming portion 7 of the preliminary line marking scheduled area 5, an elongated index marking extending along the equator line R is formed with a length approximately twice as long as the marking 6 formed in each unit marking planned area 3. . Thereby, an index for determining the reading start point and the reading direction of the information recorded in the information recording area 2 is formed inside and outside the information recording area 2.

  The marking 6 and the index marking are formed as groove-shaped markings on the surface of the sphere by rolling on a metal sphere as will be described later. As shown in FIG. 2B, the inscription 6 has an elongated groove shape extending in the width direction toward the surface and extending in the longitudinal direction along the equator line R. The index marking is not shown, but basically has the same configuration as the marking 6 described above, and only the dimension in the longitudinal direction is set long.

  Then, predetermined information is recorded in the information recording area 2 depending on the presence or absence of the marking 6 in each unit marking scheduled area 3. That is, in this example, binary “1” and “0” are recorded depending on the presence or absence of the marking 6 in each unit marking scheduled area 3. That is, 1-bit information can be recorded in one unit marking scheduled area 3.

  The information recording area 2 is composed of unit marking scheduled areas 3 arranged in two directions, the equator line R direction and the direction orthogonal thereto. Accordingly, for example, 10-bit information can be recorded in the linear marking scheduled area 4 in which ten unit marking planned areas 3 are arranged in the equator line R direction. In this case, the reading direction is the equator line R direction.

  Further, 9-bit information can be recorded in one row of the unit marking scheduled area 3 arranged in the direction orthogonal to the equator line R in the information recording area 2 where the 9 rows of linear marking scheduled areas 4 are arranged. . In this case, the reading direction is a direction orthogonal to the equator line R.

  The index of the index marking forming unit 7 determines the reading start point and reading direction of the information recorded in the information recording area 2. If the index is provided at the corner of the information recording area 2 composed of the columns and rows of the unit marking scheduled area 3 as in the above-described embodiment, it is convenient for determining the reading start point and the reading direction. is there. That is, for example, if it is determined that each column or each row is read in a predetermined direction from a predetermined position based on the position of the index, the information recorded in the information recording area 2 can be easily read.

  Next, a specific example of information recording in the information recording area 2 will be described.

  FIG. 3 is an example in which the information reading direction is set to a direction along the equator line R, and FIG. 4 is an example in which the information reading direction is set to a direction orthogonal to the equator line R.

  In FIGS. 3 and 4, the solid unit marking scheduled area 3 is a place where the marking 6 is made, and is read as the data “1” being input. On the contrary, the unit marking scheduled area 3 which is not filled is a portion where the marking 6 is not made, and is read as the data “0” being inputted.

  In FIG. 3A, the information reading direction is set to a direction along the equator line R, and each of the linear marking scheduled areas 4 and the preliminary linear marking planned areas 5 in which 10 unit marking planned areas 3 are arranged. In this example, 9-bit information is recorded in nine unit marking scheduled areas 3 other than rows overlapping with the index marking forming unit 7, and 9 bits × 10 columns of information are recorded in the information recording area 2.

  Further, in this example, with the index marking forming unit 7 as a reference, the unit marking scheduled area 3 located at the corner opposite to the index marking forming unit 7 in the column where the index marking forming unit 7 exists is used as the reading start point S, Information recording is set so as to repeat reading 9 bits in the equator line R direction from the reading start point S, and then reading the next column 9 bits in the equator line R direction. .

  In this example, it is possible to record 10 numbers 0 to 9 and 26 alphabetic characters A to Z, 36 characters in total, in each linear marking scheduled area 4 by the JIS code binary system.

  In the illustrated example, binary numbers of “100000100” in the first column and “101011000” in the second column from the reading start point S are recorded, and when read in the JIS code binary system, they are “A” and “5”, respectively. . In this way, 10 columns are recorded. In this example, the character string “A56B45B7Z9” is recorded as information.

  In FIG. 3B, the information reading direction is set to a direction along the equator line R, and 9-bit information is recorded in each linear marking scheduled area 4 in which 10 unit marking scheduled areas 3 are arranged. This is an example in which 9-bit information is recorded in nine unit marking scheduled areas 3 excluding the index marking forming unit 7 in the preliminary linear marking scheduled area 5.

  Further, in this example, with the index marking forming unit 7 as a reference, the unit marking scheduled area 3 located at the corner opposite to the index marking forming unit 7 in the column where the index marking forming unit 7 exists is used as the reading start point S, From the reading start point S, the column (the leftmost column in the figure) is read in 9 bits in the equator line R direction, then the next column is read in 10 bits in the equator line R direction, and information recording is set so as to repeat the following. ing.

  In this example, numerical values from 0 to 1023 can be recorded in each linear marking scheduled area 4 by the binary method, and numerical values from 0 to 511 can be recorded in the preliminary linear marking scheduled area 5 by the binary method.

  In the example shown in the figure, binary numbers “101101001” (decimal number 301) are recorded in the first column from the reading start point S, and binary numbers “1110011111” (decimal number 999) are recorded in the second column. . In this way, 10 columns are recorded, and in this example, 10 numerical values “301, 999, 5, 45, 125, 250, 512, 990, 211, 511” are recorded as information.

  In FIG. 4A, the information reading direction is set to a direction orthogonal to the equator line R. Then, 9-bit information is recorded in nine unit marking scheduled areas 3 arranged in each row (in the horizontal direction in the figure) of the line-shaped scheduled marking areas 4 arranged side by side, and 9 bits × 10 rows are recorded in the information recording area 2. This is an example of recording information. In this example, no information is recorded in the preliminary linear marking scheduled area 5.

  Further, in this example, with the index marking forming unit 7 as a reference, the unit marking scheduled area 3 located at the corner opposite to the index marking forming unit 7 in the row where the index marking forming unit 7 exists is used as the reading start point S. Information recording is set so as to repeat reading 9 bits in the equator line R direction from the reading start point S and then reading the next line 9 bits in the equator line R direction. .

  In this example, it is possible to record 10 numbers 0 to 9 and 26 alphabetic characters A to Z, 36 characters in total, in each linear marking scheduled area 4 by the JIS code binary system.

  In the example shown in the figure, binary numbers of “100000100” on the first line and “101011000” on the second line from the reading start point S are recorded, and “A” and “5” are read when read in the JIS code binary system. . In this way, 10 lines are recorded, and in this example, a character string “A52X45B789” is recorded as information.

  In FIG. 4B, the information reading direction is set to a direction orthogonal to the equator line R. Then, 9-bit information is recorded in nine unit marking scheduled areas 3 arranged in each row (in the horizontal direction in the figure) of the line-shaped scheduled marking areas 4 arranged side by side, and 9 bits × 10 rows are recorded in the information recording area 2. This is an example of recording information. In this example, no information is recorded in the preliminary linear marking scheduled area 5.

  Further, in this example, with the index marking forming unit 7 as a reference, the unit marking scheduled area 3 located at the corner opposite to the index marking forming unit 7 in the row where the index marking forming unit 7 exists is used as the reading start point S. Information recording is set so as to repeat reading 9 bits in the equator line R direction from the reading start point S and then reading the next line 9 bits in the equator line R direction. .

  In this example, numerical values from 0 to 1023 can be recorded in each linear marking scheduled area 4 by the binary method, and numerical values from 0 to 511 can be recorded in the preliminary linear marking scheduled area 5 by the binary method.

  In the illustrated example, the binary number “111100000” (15 in decimal) is recorded in the first line from the reading start point S, and the binary number “001000000” (4 in decimal) is recorded in the second line. . In this way, 10 columns are recorded. In this example, 10 numerical values “15, 4, 25, 45, 125, 250, 350, 455, 211, 511” are recorded as information.

  As described above, in each of the above-described examples, the column or row in which the index marking forming unit 7 exists is set as the starting column or starting row on the basis of the index marking forming unit 7, and each column or each row is the index marking forming unit 7. Although it is set so as to read from the opposite side toward the index marking forming portion 7, it is not limited to this.

  In the pachinko sphere 1, the marking 6 formed in the information recording unit 2 can be filled with a fluorescent paint that emits fluorescence in the visible range in response to light of a predetermined wavelength. As such a fluorescent paint, a fluorescent dye, a fluorescent pigment, or the like that emits fluorescence when irradiated with light of a predetermined wavelength such as ultraviolet light or electromagnetic waves such as black light (invisible light) can be used. In this embodiment, a fluorescent pigment (black light pigment) that emits fluorescence when irradiated with ultraviolet rays is employed. Thereby, authenticity can be determined by irradiating light of a predetermined wavelength such as black light.

  As described above, the pachinko ball 1 according to the present invention is provided with a plurality of elongated unit marking areas 3 extending along the equator line R so as to form a line along the equator line R, thereby forming a linear marking area 4. Is formed, and the information recording area 2 is configured by providing a plurality of the line marking scheduled areas 4 in parallel with the equator line R. As a result, the information recording area 2 is arranged in two directions in which the unit marking scheduled area 3 is in the direction of the equator line R and the direction intersecting with it. Predetermined information is recorded in the information recording area 2 depending on the presence or absence of the elongated marking 6 extending along the equator line R in each unit marking scheduled area 3. As a result, in the information recording area 2 in which the unit marking scheduled area 3 is formed in two directions of the equator line R direction and the direction intersecting with the equator line R, depending on the presence or absence of marking in each unit marking planned area 3, for example, manufacturing history information・ A lot of information such as amusement store information and authenticity information can be recorded.

  Since the marking 6 formed in each unit marking scheduled area 3 is an elongated marking extending along the equator line R, it can be formed relatively easily by a method such as rolling. A lot of information can be recorded easily and reliably on the pachinko sphere which is a metal sphere having a diameter of about 11 mm. In addition, since the information recording area is an area having a predetermined width extending along the equator line of the sphere, even if it is a sphere, two-dimensional information recording using two vertical and horizontal directions can be performed and information that can be recorded You can also increase the amount.

  Therefore, it is possible to record a lot of information such as manufacturing history information, amusement shop information, authenticity information, etc. on the pachinko ball 1 itself, and specify the amusement store from the pachinko ball 1 by the pachinko ball 1. Or manufacturing history information can be investigated retrospectively. As a result, the pachinko ball 1 can be strictly managed even after the process up to the amusement store at the manufacturing stage, the distribution stage, etc. and after the amusement store is closed, reducing the damage to the amusement store, The overall trust can be improved.

  Further, since an index for determining the reading start point S and the reading direction of the information recorded in the information recording area 2 is provided inside and / or outside the information recording area 2, the unit marking is scheduled. The information recording area 2 in which the area 3 is formed side by side in two directions of the equator line R direction and the direction intersecting with the equator line R is formed in a belt shape along the equator line R of the sphere. By easily determining the direction, information can be read and utilized reliably and easily.

  Next, a method for producing the pachinko sphere 1 will be described.

  FIG. 5 is a process diagram showing the manufacturing process of the pachinko sphere 1. First, the raw steel strip is drawn to a predetermined diameter, and after forging, ball processing is performed to form metal balls. In the forging step, as shown in FIG. 6A, the material 24 cut to a predetermined length by the cutting blade 23 is forged by a press mold 25 in which a hemispherical concave portion 27 is formed to form a substantially spherical shape. To be done. As shown in FIG. 6B, the ball processing is performed by sandwiching the forged substantially spherical material between two processing boards 26 and moving the processing board 26 so as to draw a circle. The metal ball 10 raised to a certain extent is formed.

  Next, a marking process is performed for recording predetermined information on the surface of the metal ball 10 by marking. As shown in FIG. 7, the engraving step uses a rolling die 11 having a concave groove 12 having a concave curved surface 13 that follows the curvature of the spherical surface of the metal ball 10, and rolls on the spherical surface of the metal ball 10. The stamp 6 is formed by the above.

  The rolling mold 11 has a substantially block shape, and is formed so that the groove surface of the concave groove 12 follows the curvature of the spherical surface of the metal ball 10. Then, a marking convex portion 20 for forming the marking 6 is formed on the groove surface of the concave groove 12, and the metal ball 10 is sandwiched between the rolling dies 11 each having the concave groove 12, so that the two The rolling mold 11 is relatively moved in the longitudinal direction of the concave groove 12. At this time, the marking protrusion 20 formed on the groove surface of the groove 12 bites into the surface of the metal ball 10 to form the marking 6.

  FIG. 8 is a view showing the concave groove 12 side of the rolling die 11.

  On the inner surface of the concave groove 12 of the rolling die 11, a plurality of elongated unit convex portion formation scheduled regions 17 extending along the longitudinal direction L of the concave groove 12 are provided so as to form a row along the longitudinal direction L. A linear convex portion formation scheduled region 18 is formed. Then, a plurality of the linear convex portion formation scheduled areas 18 are provided in parallel with the longitudinal direction L of the groove 12 to form the information writing area 16.

  Predetermined information is recorded in the information writing area 16 depending on the presence or absence of the elongated marking protrusion 20 extending along the longitudinal direction L in each unit protrusion formation scheduled area 17. FIG. 9 is a view showing the above-described engraved convex portion 20, which has a rectangular shape extending in the longitudinal direction L of the concave groove 12 in a plan view, and has a trapezoidal cross section.

  The unit convex portion formation scheduled region 17 corresponds to the unit marking planned region 3 of the pachinko sphere 1 described above, and the linear convex portion formation planned region 18 corresponds to the linear stamping planned region 4. Forming an information recording area 2 having a predetermined width extending along the equator line R of the sphere by performing the stamp 6 by rolling on the sphere surface of the metal sphere 10 using such a rolling mold 11. Can do it.

  That is, in the rolling, the surface of the metal ball 10 is in close contact with the concave curved surface 13 of the concave groove 12 of the pair of rolling dies 11, and in this state, the two rolling dies 11 are relatively in the longitudinal direction L. By moving, the metal ball 10 comes into rolling contact with the inner surface of the concave groove 12. At this time, the marking 6 is transferred to the surface of the metal sphere 10 by the marking projection 20 formed in the information writing area 16, and the information recording area 2 corresponding to the information writing area 16 is formed. Therefore, the longitudinal direction L of the concave groove 12 corresponds to the equator direction R of the pachinko sphere 1.

  In FIG. 8, reference numeral 21 denotes an index marking projection forming portion corresponding to the above-described index marking forming portion 7, and a marking projection for forming the index marking is formed.

  After the marking step, inspection and packing are performed through quenching and tempering, barrel polishing, precision polishing, plating pretreatment, plating, and coloring. In the coloring process, the marking 6 can be filled with the above-described fluorescent paint.

  According to the manufacturing method of the pachinko sphere of the present invention, the rolling surface 11 is used to mark the sphere surface of the metal sphere 10 by rolling so that a predetermined width extending along the equator line R of the sphere is formed on the sphere surface. The information recording area 2 is formed. In this way, the information recording area 2 can be formed relatively easily by rolling, and a large amount of information can be easily and reliably recorded on the pachinko sphere 1 which is a metal sphere having a diameter of about 11 mm. become. Further, the long and narrow marking protrusions 20 formed in the unit protrusion formation scheduled area 17 form a row in the longitudinal direction, and a plurality of the information writing areas 16 are formed side by side in the width direction. Since the writing area 16 is formed in a direction along the rolling direction, the mold is prevented from being damaged during the rolling, so that information is not lost or damaged, and predetermined information is reliably transmitted to the pachinko ball 1. Can be recorded.

FIG. 10 shows an embodiment of a package in which the above-described pachinko balls 1 of the present invention are packaged. In the packaging body, a label 31 with a two-dimensional code 32 on which information including at least information recorded in the information recording area 2 of the pachinko ball 1 is recorded is attached to the packaging box 30. FIG. 11 is a specific example of the label 31, and a QR code is used as the two-dimensional code 32. Moreover, it is preferable to affix the said label 31 so that the butt | matching part of the lid | cover of packaging boxes 30, such as cardboard, may be straddled.
In place of the label 31 provided with the two-dimensional code 32, an IC card or IC tag provided with an IC on which information including at least information recorded in the information recording area of the pachinko ball is provided as the label 31 It is also possible to use an IC label or the like. By doing so, a lot of information can be recorded on the label 31, which is more effective for traceability.

  The pachinko ball package is provided with a two-dimensional code 32 in which the pachinko ball 1 of the present invention is packed, and information including at least information recorded in the information recording area 2 of the pachinko ball 1 is recorded in the package. A label 31 is affixed. As a result, information including information recorded on the pachinko ball 1 is affixed to the packaging, and thus the above information such as manufacturing history information can be used even in the distribution process, thereby enabling traceability. .

  The package of the present invention can be applied not only to the pachinko ball 1 but also to game media such as medals. In this case, information is recorded by forming an information recording area similar to the information recording area 2 on the surface of the pachinko ball 1 or medal, and a label 31 with a two-dimensional code 32 on which information including at least the information is recorded. Is attached to the packaging box.

  In the present invention, the number of unit marking scheduled areas 3 constituting the linear marking scheduled area 4 is not limited to the above-described example, and may be smaller or larger than the above-described example. Further, the number of linear marking scheduled areas 4 constituting the information recording area 2 is not limited to the above-described example, and may be smaller or larger than the above-described example.

It is a figure which shows the pachinko sphere of one Example of this invention. It is a figure which shows an information recording area. It is a figure explaining an example of an effect | action of this invention. It is a figure explaining the 2nd example of an effect | action of this invention. It is process drawing which shows the manufacturing process of the pachinko sphere of this invention. It is a figure explaining a (A) forging process and a (B) ball processing process. It is a figure explaining a marking process. It is a figure explaining a rolling mold and an information writing area. It is a figure which shows a marking convex part. It is a perspective view which shows the pachinko ball package of the present invention. It is a figure which shows the label used for the said package.

Explanation of symbols

R Equatorial line L Longitudinal direction S Reading start point 1 Pachinko ball 2 Information recording area 3 Unit marking scheduled area 4 Linear marking scheduled area 5 Preliminary linear marking scheduled area 6 Stamping 7 Index marking forming part 10 Metal ball 11 Rolling mold 12 Concave groove DESCRIPTION OF SYMBOLS 13 Concave surface 16 Information writing area 17 Unit convex part formation plan area 18 Linear convex part formation plan area 20 Stamping convex part 21 Index stamping convex part formation part 23 Cutting blade 24 Material 25 Press die 26 Processing board 27 Concave part 30 Packing box 31 Label 32 Two-dimensional code

Claims (1)

Using a rolling mold in which a concave groove having a concave curved surface along the curvature of the sphere surface of the metal sphere is used, a method of manufacturing a pachinko sphere that performs marking on the sphere surface of the metal sphere by rolling,
  On the inner surface of the above rolling groove,
  A plurality of elongated unit convex portion formation scheduled areas extending along the longitudinal direction of the concave groove are provided so as to form a line along the longitudinal direction, thereby forming a linear convex formation planned region, and forming the linear convex portion A plurality of planned areas are provided in parallel with the longitudinal direction of the groove to form an information writing area,
  Predetermined information is recorded in the information writing area, depending on the presence or absence of elongated marking protrusions extending along the longitudinal direction in each unit protrusion formation scheduled area,
  An index marking projection forming portion serving as an index for determining a reading start point and a reading direction of information recorded in the information writing region in and / or outside the information writing region is formed as the unit convex portion. It is formed and provided as an elongated stamped convex part extending along the longitudinal direction of the groove, similar to the stamped convex part in the planned region,
  A pachinko ball having a predetermined width extending along the equator line of the sphere is formed on the surface of the sphere by performing marking on the sphere surface of the metal sphere using the rolling mold. Production method.

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