JP2009131498A - Pachinko machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a Pachinko machine capable of effectively preventing damage of an obstruction nail opposite to a bounce-back member even when game balls continue colliding with the bounce back member for a long period. <P>SOLUTION: The Pachinko machine has a guide rail 8 for guiding game balls shot by a shooting device to the upper part of a game area which is installed on a game board 4, and at an end edge of the guide rail 8, a bounce-back member 11 for bouncing the shot game ball back is installed. The bounce-back member 11 has a rugged shape formed by providing a game ball collision surface 16 with a horizontal V shaped groove 17, and an engaging hole 12 is put through a side a little lower than a center in the height direction. At the installation position of the bounce-back member 11 of the game board 4, a pole-shaped tab 22 whose cross section is a cross is provided in a projecting manner. Then, the bounce-back member 11 is installed on the game board 4 in a state that the pole-shaped tab 22 is inserted into the engaging hole 12. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a pachinko machine.

  A normal pachinko machine has a guide rail installed on the game board for guiding a game ball driven by a launcher to the upper side of the game area, and a game ball that is strongly driven at the edge of the guide rail. A return member (return rubber) for rebounding is installed. Among the pachinko machines, there is a so-called “right-handed” type pachinko machine configured so that a privilege can be obtained by strongly hitting a game ball into the right side of the game area at a predetermined timing. Such right-handed pachinko machines have a plurality of obstacle nails arranged side by side at a position facing the return rubber, and by using these obstacle nails, the game balls bounced back by the return rubber are dropped downwards, The ball is configured not to flow down the left side of the game area.

  However, in a right-handed pachinko machine in which obstacle nails are installed side by side at a position facing such a return rubber, if used for a long time, the obstacle nail that receives the game ball bounced back by the return rubber is damaged. There was a case. Therefore, some right-handed pachinko machines are provided with a guide member for guiding the game ball bounced back by the return rubber in a predetermined direction, as in Patent Document 1.

JP-A-8-322988

  However, a pachinko machine with a guide member installed as described above requires a large space on the board surface for installing the guide member, and the flow direction of the game ball after colliding with the guide member is constant. Since it is easy, there exists a malfunction that the game content will be limited.

  The object of the present invention is to solve the problems of the conventional pachinko machine and effectively damage the obstacle nail facing the return member even when the game ball continues to collide with the return member over a long period of time. An object of the present invention is to provide a pachinko machine that can prevent a game ball from falling in a variety of ways without restricting the falling direction of the game ball after colliding with a return member.

  Among the present inventions, the invention described in claim 1 is characterized in that a guide rail for guiding the game ball driven by the launching device to the upper side of the game area is installed in the game board, and The return member for rebounding is a pachinko machine installed near the leading edge of the guide rail, and the return member is provided with a cylindrical locking hole penetrating from the front surface to the back surface. It is installed in a state in which a columnar boss provided so as to be orthogonal to the game board is inserted in the stop hole, and irregularities are formed on the game ball collision surface of the return member. To do.

  The invention described in claim 2 is the invention described in claim 1, wherein the unevenness is formed by providing a horizontal V-shaped or U-shaped groove on the game ball collision surface of the return member. It is characterized by that.

  The invention described in claim 3 is the invention described in claim 1 or 2, wherein the unevenness is formed by implanting a plurality of rod-shaped protrusions on the main body of the return member. It is characterized by this.

  In the pachinko machine according to the first aspect, when the game ball that has been struck collides with the return member, the unevenness formed on the game ball collision surface effectively reduces the impact of the game ball. Moreover, the unevenness | corrugation formed in the game ball collision surface changes the rebound direction of the game ball after a collision at random, and the situation where a game ball collides with the same obstacle nail is prevented. Therefore, even when used over a long period of time, it is possible to effectively prevent damage to the obstacle nail facing the barb member.

  In the pachinko machine according to claim 2, the impact at the time of the collision of the game ball on the return member is extremely caused by the unevenness formed by the horizontal V-shaped or U-shaped groove formed on the game ball collision surface of the return member. It can be effectively reduced.

  The pachinko machine according to claim 3 reduces the impact at the time of the collision of the game ball on the return member very effectively by the unevenness formed by a plurality of rod-shaped protrusions formed on the game ball collision surface of the return member. Can do.

  Hereinafter, the pachinko machine of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a pachinko machine according to the present invention. In the pachinko machine 1, a front frame 3 is hinged to one side edge of the machine frame 2 so as to be freely opened and closed, and slightly from the center of the front frame 3. A game board 4 is installed behind the upper side. FIG. 2 shows the game board 4. On the surface of the game board 4, a metal belt-shaped guide rail 8 for guiding the game ball launched by the launching device to the upper side of the game board 4 is circular. It is erected in an arc shape, and a substantially circular gaming area 10 is partitioned by the guide rail 8. A return member 11 for repelling the game ball jumping to the right side along the guide rail 8 is installed at a position adjacent to the tip of the guide rail 8 (upper right portion).

  Further, as shown in FIG. 1, the game area 10 is provided with a symbol display device 19, a big prize opening 20, winning devices 21, 21,..., Electric lamps, windmills, etc., and a number of obstacle nails. (In FIG. 2, the symbol display device 19, the big prize opening 20, the prize winning devices 21, 21..., The electric lamp, the windmill, the obstacle nail 9, 9.・ Descriptions such as are omitted). On the other hand, a supply tray 5 for supplying game balls to a launching device (not shown) is installed below the front frame 3, and the launching device is operated at the lower right of the supply tray 5. A firing handle 7 for projecting is provided.

  FIG. 3 shows an installation site of the return member 11, and FIG. 4 shows a vertical cross section (cross section taken along line AA in FIG. 3) of the installation portion of the return member 11 (the return member 11 and the game). The board 4 is shown separately). FIG. 5 is a perspective explanatory view of the return member 11. The return member 11 is integrally formed of a silicone rubber into a flat columnar shape (a flat columnar shape having a height direction in a direction perpendicular to the board surface of the game board 4). A horizontal V-shaped groove 17 is provided on the upper left side surface (that is, the game ball collision surface 16) to alleviate the impact at the time of the game ball collision. The width of the groove 17 is about 10 mm, and the depth of the groove 17 is about 3 mm.

  Further, a locking hole 12 is bored slightly below the center of the return member 11 (lower right of the groove). The locking hole 12 has a substantially cylindrical shape, and penetrates from the front surface to the back surface of the return member 11. As shown in FIG. 4A, a plurality of grooves are formed on the inner wall of the locking hole 12 so that the large diameter portion 13 and the small diameter portion 14 are formed. In addition, the diameters of the small diameter part 14 and the large diameter part 13 are about 6.0 mm and about 6.5 mm, respectively.

  On the other hand, a columnar boss 22 is erected on the surface of the game board 4 at the installation portion of the return member 11 (provided integrally with the board surface of the game board 4). FIG. 6 shows a cross section taken along the line BB in FIG. 4B, and the upper columnar boss 22 has a cross-shaped cross section. The width (a in FIG. 6) and the height (b in FIG. 6) are both about 6.1 mm. The return member 11 is installed at the edge of the guide rail 8 with the columnar boss 22 inserted into the locking hole 12.

  In the pachinko machine 1 configured as described above, when a game ball is launched from a launching device (not shown) by a turning operation of the launching handle 7, and the launched game ball wins a predetermined winning device 21 When a lottery is executed in the control device installed in the interior and the result of the lottery is “big hit”, a predetermined “hit symbol” is displayed on the symbol display device 19 and then installed on the right side. On the condition that the winning device 21 wins, the large winning opening 20 is intermittently opened a predetermined number of times. Therefore, when a “hit” is generated, the player wins a large number of prize balls by rotating the launch handle 7 greatly to fire the game ball strongly and winning the winning device 21 on the right side. can do.

  Then, when the player performs so-called “right-handed” in this way, the game ball that has been struck collides with the game ball collision surface 16 of the return member 11, and at that time, a horizontal V-shaped The momentum of the game ball is effectively reduced by the groove 17. Therefore, a situation in which the opposing (adjacent) obstacle nail 9 is damaged does not occur.

  In the pachinko machine 1, as described above, the return member 11 is provided with the cylindrical locking hole 12 penetrating from the front surface to the back surface, and the columnar shape protruding from the game board 4 in the locking hole 12. Since the boss 22 is installed and the game ball collision surface 16 of the return member 11 is uneven, the game ball collision occurs when the game ball that has been struck collides with the return member 11. The unevenness of the surface 16 effectively reduces the impact caused by the game ball. Therefore, even when used over a long period of time, it is possible to effectively prevent damage to the obstacle nail 9 facing the barb member 11.

  In addition, the pachinko machine 1 has a V-shaped groove 17 in which the unevenness of the game ball collision surface 16 of the return member 11 is a horizontal V-shaped groove 17. Can be reduced.

  In addition, in the pachinko machine 1, the columnar bosses 22 and 23 are formed in a cross-shaped cross section, and the locking hole 12 of the return member 11 has a large diameter portion 13 and a small diameter portion 14, and is locked Since the hole 15 has the large-diameter portion 16 and the small-diameter portion 17, the contact area between the locking holes 12, 13 and the columnar bosses 22, 23 is small, so that the return member 11 is attached to the game board 4, It is very easy to remove.

  The configuration of the pachinko machine of the present invention is not limited to the aspect of the above embodiment, and the shape and structure of the machine frame, front frame, game board, supply tray, launch handle, guide rail, return member, etc. The configuration of the material and the like can be changed as appropriate without departing from the spirit of the present invention.

  For example, the return member is not limited to those formed of silicone rubber as in the above embodiment, but is formed of other elastic materials such as synthetic rubber and natural rubber, or thermoplastic such as polymer gel. It is also possible to change to those formed of the above resin. In addition, when the return member is formed of synthetic rubber, polybutadiene, butadiene / acrylonitrile, chloroprene, or the like can be suitably used as the synthetic rubber. Specifically, acrylic rubber (ACM), acrylonitrile butadiene rubber (nitrile rubber NBR), isoprene rubber (IR), urethane rubber (U), ethylene propylene rubber (EPM, EPDM), epiacrylhydrin rubber (CO, ECO) , Chloroprene rubber (CR), silicone rubber (Q), styrene butadiene rubber (SBR), polysulfide rubber (T), butadiene rubber (BR), butyl rubber (IIR), fluoro rubber (FKM), chlorinated polyethylene (CPE) Chlorosulfonated polyethylene (CSM) and the like, blends of these rubbers, or blends of gel materials such as polymer gels with some of these rubbers can be suitably used.

  In addition, the return member may be a composite member in which the surface layer of the game ball collision surface is formed of a material such as a soft synthetic resin and the other portion is formed of a hard synthetic resin, metal, or the like. It is. In addition, when the return member is composite as described above, it can be formed integrally, or can be formed by bonding the surface layer portion with an adhesive or the like. In addition, when using a return member in which a rod-shaped protrusion is implanted in the main body, it is possible to adjust the buffer function of the game ball by changing the material (such as the type of synthetic resin) that forms the rod-shaped protrusion. Become. When selecting a material for forming the rod-shaped protrusion, it is preferable to select a material that does not deform due to the collision of game balls.

  Furthermore, the return member is not limited to the one installed in the game board using two locking holes, and may be one installed in the game board using one locking hole or three or more locking holes. good. In addition, the return member is not limited to a flat columnar shape having a droplet-like vertical cross section as in the above embodiment, and may be a simple elliptical shape or a prismatic shape.

  Further, the unevenness formed on the game ball collision surface of the return member is not limited to one horizontal V-shaped groove as in the above embodiment, and a plurality of horizontal V-shaped as shown in FIG. 8, one horizontal U-shaped groove 25, one consisting of a plurality of horizontal U-shaped grooves, or a vertical V-shape as shown in FIG. Alternatively, it can be changed to a U-shaped groove.

  Further, as shown in FIG. 9, the return member is formed by implanting a large number of rod-like protrusions 28, 28,... On the game ball collision side of the main body 27 having a locking hole (ie, having a shape like a toothbrush). It is also possible to change to When the return member has a large number of rod-like projections 28, 28,... Implanted on the game ball collision side of the main body 27 as described above, as shown in FIGS. 10 (a) to 10 (c). The length of the rod-like projections 28, 28,... So that the angle between the surface formed by the tips of the rod-like projections 28, 28,... And the board surface of the game board 4 is an acute angle (an angle less than 90 °). Can be adjusted (adjusted so that the outer rod-like projections 28, 28,... Are longer than the inner rod-like projections 28, 28,...). (In FIG. 11 (a), the flat surface P is formed by the tips of all the rod-like protrusions 28, 28,... And the angle between the flat surface P and the board surface of the game board 4 is adjusted to be an acute angle. In FIG. 11B, a plane P ′ is formed by the tips of the half rod-like projections 28, 28,... On the side close to the game board 4, and the plane P ′ and the board surface of the game board 4 are formed. In FIG. 11C, the curved surface P ″ is formed by the tips of all the rod-like protrusions 28, 28,... The angle between the board 4 and the board surface is adjusted to be an acute angle). When the lengths of the rod-like projections 28, 28,... Are adjusted in this way, the game ball that has collided with the surface (P, P ′, P ″) formed by the tips of the rod-like projections 28, 28,. However, since it is rebounded in the direction of the game board 4, there is a merit that the momentum of the game ball can be reduced more effectively.

  In addition, the return member has an inclined surface (an inclination inclined with respect to the jumping direction of the game ball) on at least a part of the game ball collision surface (a game ball collision surface provided integrally with the main body having a locking hole). It is also possible to provide an angle between the inclined surface and the board surface of the game board. Even when such a configuration is adopted, the game ball that has collided with the game ball collision surface is played in the same way as in the case where the angle between the surface formed by the tip of the rod-shaped protrusion and the board surface of the game board is an acute angle as described above. There is an advantage that the momentum of the game ball can be reduced more effectively by rebounding in the direction of.

  In addition, the return member has a plurality of holes (cylindrical recesses) 30, 30... Formed in the game ball collision surface 16 as shown in FIG. 11, or a pyramid on the game ball collision surface 16 as shown in FIG. It is also possible to change to a shape provided with a dent 32 or a shape provided with a spherical dent 33 on the game ball collision surface as shown in FIG. When the return member is provided with a pyramid or spherical depression on the game ball collision surface as described above, the depth of the center in the width direction of the game ball collision surface is maximized. When adjusted, the momentum of the game ball can be reduced more effectively.

  On the other hand, the columnar boss for engaging the return member is not limited to the one directly erected on the game board as in the above embodiment, and the game member that covers the outer surface of the return member (the surface opposite to the game board side). It is also possible to provide (corner decoration etc.) on the game board and to project a columnar boss on the inner surface of the game member facing the game board so as to be orthogonal to the game board surface.

  Further, the game board is not limited to a structure in which the game ball bounced back by the return member flows down in various directions as in the above embodiment, and the game board is located near the return member 11 as shown in FIG. A member (having an outer peripheral surface orthogonal to the game board surface) is provided, and it is possible to change to a configuration in which the flow direction of the rebounded game ball is constant. When such a configuration is adopted, there is an advantage that it becomes easy to design a right-handed type pachinko machine.

It is a front view of a pachinko machine. It is explanatory drawing which simplifies and shows a game board. It is explanatory drawing which shows the installation part of a return member. It is explanatory drawing which shows the vertical cross section (AA cross section in FIG. 3) of a return member and a game board (a is a vertical cross section of a return member, b is a vertical cross section of a game board). It is explanatory drawing which shows the horizontal cross section (BB sectional view in FIG. 3) of a return member. It is explanatory drawing which shows the vertical cross section (CC line cross section in FIG. 4) of a columnar boss | hub. It is explanatory drawing which shows the example of a change of a return member (a is a front view, b is the perspective view seen from the left side). It is explanatory drawing which shows the example of a change of a return member (a is a front view, b is the perspective view seen from the left side). It is explanatory drawing which shows the example of a change of a return member (a is a front view, b is the perspective view seen from the left side). It is explanatory drawing which shows the example of a change of a return member (all are ac top views). It is explanatory drawing which shows the example of a change of a return member (a is a front view, b is the perspective view seen from the left side). It is explanatory drawing which shows the example of a change of a return member (a is a front view, b is the perspective view seen from the left side). It is explanatory drawing which shows the example of a change of a return member (a is a front view, b is the perspective view seen from the left side). It is explanatory drawing which simplifies and shows the example of a change of a game board.

Explanation of symbols

1 .. Pachinko machine 4 .. Game board 7 .. Launch handle 8 .. Guide rail 9 .. Obstruction nail 10 .. Game area 11 .. Return member 12 .. Locking hole 16. 24, 25 ... Groove 22 ... Columnar boss 30 ... Hole 32, 33 ... Depression

Claims (3)

A guide rail for guiding the game ball driven by the launching device to the upper side of the game area is installed on the game board, and a return member for repelling the game ball driven is provided at the edge of the front end of the guide rail. An installed pachinko machine,
The return member is provided with a cylindrical locking hole penetrating from the front surface to the back surface, and a columnar boss provided so as to be orthogonal to the game board is inserted into the locking hole. And installed in
A pachinko machine characterized in that irregularities are formed on the game ball collision surface of the return member.   The pachinko machine according to claim 1, wherein the unevenness is formed by providing a horizontal V-shaped or U-shaped groove on a game ball collision surface of the return member.   The pachinko machine according to claim 1, wherein the irregularities are formed by planting a plurality of rod-like protrusions on a main body of the return member.

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