JP4493972B2 - Pachinko machine game board - Google Patents

Description

  The present invention relates to a game board in which a game nail can be easily replaced when a game nail attached to the game board breaks due to a ball collision.

In the game board of pachinko machines, a number of game nails, also called obstacle nails, are provided in the game area. It is designed to form how the spheres fly and flow. However, by providing the game nail near the guide rail in the uppermost central portion called the top of the game area, the game nail is able to form a strong ball immediately after being launched from the launch mechanism along the guide rail to the game area. If the game nail is arranged so that the ball flows from the top of the game area to the right side and flows from the top to the left side of the game area, the game nail is played by the repeated impact of the strong ball. Sometimes it breaks from the root of the area. When the game nail breaks from the base, it is necessary to remove the residue biting into the inside of the game board from the inside of the game board and repair the new game nail. However, it takes a lot of labor and time to remove the residue of the game nails that are biting into the game board without damaging the design board surface in the game area of the game board. Moreover, even if a new game nail is attached to the residue hole of the game board from which the residue of the game nail has been removed, the holding power of the game board with respect to the new game nail changes, creating the same repulsion and flow of the ball as before the repair. There is a drawback that you can not. For this reason, it may be possible to reinforce the game nail by thickening the part of the game nail that protrudes from the game area to the front side of the game board or by inserting a cylindrical body into the part. Considering the manufacturing process of a game board in which game nails are driven into the game board with a dedicated nail driver, it is difficult to adopt it.
Japanese Patent Laid-Open No. 5-269239

  The problem to be solved by the invention is that when the game nail attached to the game board breaks due to the collision of the ball, the replacement of the game nail is troublesome.

The game board of the pachinko machine of the present invention has a length obtained by adding a game board having a nail insertion hole penetrating the game area and the back surface, and a thickness of the game board and 1/2 or more of the diameter of the ball. A game nail having a body that is press-fitted into the nail insertion hole from the back of the game board and protrudes into the game area, and a head that is located away from the back of the game board and has a larger outer diameter than the body, and a head of the game nail and more and this was a nail pull working space for fitting a nail pull tool which is formed between the rear surface of the game board, the game nail is the most important feature that is attached to the game board. Or not sharp tip of the body, from the tip protruding fuselage fuselage of the game region is mounted on the side of the base of the play area characterized with kite comprising a covering body for covering the circumference of the root.

When the game nail is attached to the game board, the pachinko machine game board of the present invention has a linear body whose outer diameter is larger than that of the nail insertion hole and is pressed into the nail insertion hole from the back of the game board. there is an advantage that as possible out to ensure the retention of the game board with respect to the nail. In addition, when the game nail is broken from the base, the head protruding from the back of the game nail is grasped with a tool and pulled, so that the design board surface in the game area of the game board is not damaged, and the inside of the game board is The biting residue can be easily removed from the inside of the game board, and the new game nail body is pressed into the nail insertion hole from the back of the game board and attached, ensuring the holding power of the game board against the new game nail If the game nail attached to the game board breaks due to the collision of the ball, there is an advantage that the game nail can be easily replaced. Moreover, if the front-end | tip of a trunk | drum is not sharp, there exists an advantage that an operator is not injured and it is safe . Also, if the protruding fuselage body of the tip of the game area is mounted on the side of the base of the game area Sonaere a covering body for covering the periphery of the base, design board by press-fitting from the back of the fuselage of the game board There is an advantage that the turn of the decorative sheet constituting the cover is blindfolded and the appearance is good.

  1 to 3 show a first embodiment. FIG. 1 shows a cross section of a mounting structure between the game board 1 and the game nail 20. FIG. 2 shows the front of the game board 1. FIG. 3 shows a cross section when the game nail 20 attached to the game board 1 is broken.

  With reference to FIG. 2, the game board 1 of the pachinko machine will be described. The game board 1 has a form in which a decorative sheet 3 is bonded to one surface of a square game board 2 made of plywood such as veneer with an adhesive. Refer to FIG. 1 for a form in which the game board 2 and the decorative sheet 3 are coupled to each other. The decorative sheet 3 is formed by printing a design board surface layer such as a pattern or model name on the back surface of a colorless plate-like surface layer made of nitrate fiber synthetic resin, and a fixing paper such as Kent paper on the back surface of the design board surface layer. Are bonded with an adhesive. Therefore, the fixing sheet 3 is bonded to one surface of the game board 2 with an adhesive, so that the decorative sheet 3 is bonded to the game board 2 to form the design board surface of the game board 1. By attaching the guide rail 5 to the design board surface of the game board 1, the inner side surrounded by the guide rail 5 is formed as the game area 6. The guide rail 5 is formed of two parts, a strip-shaped outer band 7 made of stainless steel and a strip-shaped inner band 8 made of stainless steel.

  A gap between the outer band 7 and the inner band 8 is a launch passage 9 that guides a ball launched from a launch mechanism provided in a gaming machine frame to which the game board 1 is attached to the game area 6. In the game area 6 other than the launch passage 9, a general winning component 11, a starting winning component 12, a variable winning component 13, an out port 14, a windmill 15, a center ornament 16, a symbol display 17, a side lamp 18, and a large number of games. Gaming parts such as nails 19 are provided. Of the large number of game nails 19, the game nails 20 provided near the guide rail 5 at the uppermost center called the top of the game area 6 are attached from the back side of the game board 1 as shown in FIG. 1. 2 is a board decoration attached to the non-game area outside the guide rail 5 in the game board 1, and the board decoration 24 blinds the boundary between the outer band 7 and the inner band 8. is doing.

  With reference to FIG. 1, the attachment structure of the game board 1 and the game nail 20 is demonstrated. The game board 1 is formed with a linear nail insertion hole 22 penetrating the game area 6 and the back surface 23. The center line L1 of the nail insertion hole 22 is not in a form orthogonal to both the game area 6 and the back surface 23 which are the front surfaces of the decorative sheets 3 parallel to each other of the game board 1, but rises from the back surface 23 toward the game area 6. The inclination angle θ is a gradient. The inclination angle θ is such that when the game board 1 is attached to a game machine frame (not shown), the game nail 20 is inclined about 5 degrees toward the front of the game board 1 toward the upper part of the game area 6. It is set to about 5 degrees with respect to a perpendicular line perpendicular to the front surface.

  The game nail 20 is made of the same material as the game nail conventionally used in brass and having a hardness of HV180-200. The game nail 20 is thicker than the nail insertion hole 22 and has a straight body 25 having an outer diameter D1 larger than The head portion 26 having a large diameter is formed so as to be connected coaxially. The body 25 has a linear round bar shape having a length L2 obtained by adding the thickness H1 of the game board 1 and 1/2 or more of the diameter D3 of the ball. For example, when the thickness H1 of the game board 1 is 19 mm and the diameter D3 of the sphere is 11 mm, the length L2 of the body 25 is 19+ (11/2 or more). However, the length L2 of the body 25 is such that the gaming board 1 is replaceably attached to the gaming machine frame, and the front side of the gaming board 1 is a colorless front panel made of light-transmitting glass or synthetic resin of the gaming machine frame. In the case where the body 25 is covered with the front panel, the body 25 does not come into contact with the front panel. The thickness which is the outer diameter D1 of the body 25 is larger than the diameter D2 of the nail insertion hole 22. For example, the thickness of the body 25 is 1.85 mm, and the diameter D2 of the nail insertion hole 22 is 1 mm-1.5 mm.

  The front end of the body 25 is not pointed and has a flat surface orthogonal to the center line of the body 25 or a spherical shape that protrudes first from the body 25, so that the operator is not injured and is safe. The shape of the head 26 may be a hemispherical shape having a flat surface on the body 25 side and projecting from the flat surface to the head 26 side, but projecting from the flat surface to the head 26 side. If it is a short column shape, it is preferable when pulling out a nail. The body 25 is pressed into the nail insertion hole 22 from the back surface 23 of the game board 1 and protrudes into the game area 6, and the nail extraction work in which the nail extraction tool 28 shown in FIG. By forming the space 29, the game nail 20 is attached to the game board 1.

  According to the structure of the first embodiment, when the game nail 20 is attached to the game board 1, the straight body 25 having a larger outer diameter D1 than the nail insertion hole 22 extends from the back surface 23 of the game board 1 to the nail insertion hole 22. The holding force of the game board 1 with respect to the game nail 20 can be ensured by being press-fitted into the game nail. As shown in FIG. 3, when the game nail 20 is broken from the base, the nail extraction tool 28 is inserted into the nail extraction work space 29 formed in the head 26 and the back surface 23 of the game board 1, and the nail extraction tool 28 is used. By grasping the head 26 and pulling it to the rear side, the residue 30 biting into the game board 1 can be easily removed from the game board 1 without damaging the game area 6 of the game board 1. it can. The body 25 of the new game nail 20 is pressed into the nail insertion hole 22 from the back surface 23 of the game board 1 into the nail insertion hole 22 from which the residue 30 has been removed, so that the new game nail 20 is attached to the game board 1. . Therefore, the holding power of the game board 1 with respect to the new game nail 20 can also be ensured.

  According to the structure of the first embodiment, the body 25 of the game nail 20 has a length L2 obtained by adding the thickness H1 of the game board 1 and 1/2 or more of the ball diameter D3. The protrusion dimension from 6 is larger than the dimension (D3 / 2) from the game area 6 of the ball flowing through the game area 6 in contact with the game area 6 to the outermost peripheral portion P having the maximum diameter. The dimension between the outer peripheral part P and the game area 6 is D3 / 2. Therefore, even if a ball that contacts the game area 6 and flows downward in the game area 6 collides with the side surface of the body 25 of the game nail 20 protruding into the game area 6, the collided ball is placed on the front side of the game board 1. Since it does not rebound to the side of the arranged front panel and the colliding ball rebounds while being in contact with the game area 6, it is possible to prevent the ball from colliding with the front panel. Further, the gap D5 between the game nail 20 and the guide rail 5 is formed to be smaller than the diameter D3 of one sphere, so that the game nail 20 can be removed from the launch mechanism of the gaming machine frame without the sphere being sandwiched between the gaps D5. It receives a strong ball immediately after being launched into the game area 6 along the guide rail 5 so that the ball flows less from the heaven to the right side of the game area and flows more from the heaven to the left side. However, as the distance D5 is reduced, the ball after the collision is rebounded from the diagonally lower left to the lower right or from the lower right to the right diagonally downward.

  FIG. 4 shows a cross section of the mounting structure between the game board 1 and the game nail 20 according to the second embodiment. The shape of the head 26 of the game nail 20 is formed in a short column shape protruding from the flat surface located on the body 25 side toward the head 26 side. Therefore, the body 25 is press-fitted into the nail insertion hole 22 from the back surface 23 of the game board 1 and protrudes into the game area 6, and the flat surface of the head portion 26 contacts the back surface 23 of the game board 1 around the nail insertion hole 22. Thus, the game nail 20 is attached to the game board 1. As a result, the size of the body 25 that is press-fitted into the nail insertion hole 22 from the back surface 23 of the game board 1 and protrudes into the game area 6, that is, the protrusion dimension (L2-H1) of the body 25 from the game area 6 is accurate. It can be secured. Further, since the shape of the head portion 26 is a short columnar shape, when the game nail 20 is broken from the base, the short columnar head portion 26 is gripped by the outer surface of the head portion 26 with a tool such as pliers, and the rear side , The residue 30 biting into the game board 1 can be easily removed from the game board 1 without damaging the design board surface in the game area 6 of the game board 1.

  FIG. 5 shows a cross section of the mounting structure between the game board 1 and the game nail 20 according to the third embodiment. A head 26 of the game nail 20 includes a nail extraction working part 32 that is recessed from the outer surface to the inside. When the game nail 20 is broken from the base, a tool such as a wire is fitted into the nail extraction work part 32, and the head 26 is pulled rearward with the tool, so that the design board surface in the game area 6 of the game board 1 is placed. The residue 30 biting into the game board 1 can be easily removed from the game board 1 without damaging it. The nail extraction working part 32 may be a through hole.

  FIG. 6 shows a cross section of an attachment structure between the game board 1 and the game nail 20 according to the fourth embodiment. The body 25 from which the game area 6 protrudes has a cover 33 attached to the base side of the game area 6 from the tip of the body 25, and the cover 33 covers the periphery of the base. The cover 33 has a game board side opening having a diameter larger than that of the body 25, and has a semi-circular wall protruding forward from the game board side opening, and has a generally dome shape. Therefore, when the body 25 of the game nail 20 penetrates the decorative sheet 3 from the back side of the game board 1 through the nail insertion hole 22, the periphery of the nail insertion hole 22 of the decorative sheet 3 constituting the game region 6 is the front side. Even if the cover 33 is turned up, the cover 33 blinds the turned-up portion 34 of the decorative sheet 3 and the appearance is improved.

  FIG. 7 shows a cross section of an attachment structure between the game board 1 and the game nail 20 according to the fifth embodiment. A jig 35 is applied to the game area 6 around the nail insertion hole 22 in the game board 1. The jig 35 has an internal hole 36 having the same diameter as the nail insertion hole 22 or a larger diameter. That is, when the jig 35 is applied to the game area 6 of the game board 1 so that the inner hole 36 of the jig 35 is coaxial with the nail insertion hole 22 of the game board 1, the body 25 of the game nail 20 is moved. When protruding from the back surface 23 of the game board 1 to the game area 6 via the nail insertion hole 22, the jig 35 restrains the decorative sheet 3 around the nail insertion hole 22, so the decorative sheet around the nail insertion hole 22 It is possible to prevent the decorative sheet 3 from being turned up so that 3 is not pushed up by the tip of the body 25 and turned up.

  Although the method of rebounding the ball changes, the material of the game nail 20 and the thickness of the body 25 may be changed to values other than those described in the embodiment. The mounting structure of the game nail 20 provided near the guide rail 5 in the uppermost central portion called the top of the game area 6 has been described, but it is also used for the structure of mounting the game nail 19 provided in other places to the game board 1 can do. The game nail 19 may be driven into the game board 1 from the game area 6, and the tip of the game nail 19 may not penetrate the back surface 23 of the game board 1. A male screw is formed in a portion of the body 25 that is disposed inside the game board 1, a tool insertion portion for inserting a tool such as a screwdriver is formed in the head 26, and the residue 30 is removed with the tool. Also good.

Sectional drawing which shows the attachment structure of a game board and a game nail. (First embodiment) The front view which shows a game board. (First embodiment) Sectional drawing which shows the broken form of the game nail. (First embodiment) Sectional drawing which shows the attachment structure of a game board and a game nail. (Second Embodiment) Sectional drawing which shows the attachment structure of a game board and a game nail. (Third embodiment) Sectional drawing which shows the attachment structure of a game board and a game nail. (Fourth embodiment) Sectional drawing which shows the attachment structure of a game board and a game nail. (Fifth embodiment)

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Game board 5 Guide rail 6 Game area 20 Game nail 22 Nail insertion hole 23 Back surface 25 Body 26 Head 29 Nail extraction work space 30 Residue 32 Nail extraction work part 33 Cover

Claims (3)

A game board having a nail insertion hole penetrating the game area and the back surface, and a length obtained by adding the thickness of the game board and ½ or more of the diameter of the ball, and press-fitting into the nail insertion hole from the back surface of the game board A game nail having a head that protrudes into the game area and a head that is located farther away from the back of the game board and has a larger outer diameter than the body, and is formed between the head of the game nail and the back of the game board A pachinko machine game board comprising a nail extraction work space for fitting a nail extraction tool . Pachinko machine game board of claim 1 Symbol placement, wherein the non-pointed tip of the barrel body. Game board of claim 1 Symbol placement pachinko protruding body of the gaming area from the fuselage of the tip is attached to the base side of the play area characterized by comprising a covering body for covering the circumference of the root.

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