JPH10234965A - Pachinko game machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a conveniently handleable Pachinko (pinball game) machine capable of surely destaticizing static electricity generated by the friction of Pachinko balls or the like composed of simple constitution. SOLUTION: A prize ball tank 4 forms a box body opened upwards and a ground plate 14 composed of galvanized copper is mounted to the side face on the side of a mechanism set panel. For the ground plate 14, a contact piece 14A is projectingly provided on one side in the longitudinal direction of a rectangular plate material and a vertically bent step piece 14B is projectingly provided on a communication hole 4A to another tank rail 6. The peak part of the contact piece 14A of the ground plate 14 is mounted so as to be in contact with a wooden outer frame 2. Then, to a contact part where the contact piece 14A of the ground plate 14 is in contact, a discharge plate 15 composed of metal which is an electrically conductive member is stuck. For the discharge plate 15, aluminum or stainless or the like is used for instance. In the meantime, the step piece 14B is inserted into the communication hole 4A at the bottom part of the prize ball tank 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pachinko game machine in which the effect of static electricity generated on a pachinko ball is considered.
In particular, the present invention relates to a pachinko game machine in which static electricity charged in a pachinko ball in a prize ball payout system disposed on the back of the pachinko game machine is reliably discharged.

[0002]

2. Description of the Related Art Recent pachinko game machines are provided with various objects in order to increase the interest of players using the pachinko game machines by changing game contents. Under such circumstances, the pachinko game machine incorporates a very large number of electronic control circuits for controlling various devices including the control of special items, and various types of control such as a special item control circuit, a display circuit, or a prize ball discharge control circuit. Circuit exists. An electronic control circuit including a microcomputer or the like has become mainstream in such a circuit, and its structure has become very complicated. On the other hand, the pachinko balls used in pachinko game machines are formed of iron, which is a conductive material, and have been subjected to polishing, etc., but the pachinko balls generate static electricity due to friction with abrasives. Will be done. Further, in the pachinko balls used in circulation, static electricity is also generated due to friction between the pachinko balls or friction between the pachinko balls and a passage in which a plastic material or a celluloid material is used.

[0003] Therefore, in the pachinko game machine, a malfunction due to the static electricity generated in such a pachinko ball has become a problem. That is, the various electronic circuits described above are susceptible to noise, and various obstacles such as malfunction or stoppage of the circuit occur because static electricity is generated from the pachinko ball as pulse noise. This is because the electric charge charged in the pachinko ball is generated as a high voltage pulse like a discharge phenomenon, and is generated as noise in the electronic circuit formed by the microcomputer. Therefore, various approaches have been taken from the viewpoint of hardware and software as countermeasures against such static electricity. However, although these are effective against relatively small pulse noise,
With a large pulse noise such as a discharge, a problem that a voltage exceeding a withstand voltage of an electronic circuit is applied and each electronic circuit is physically destroyed cannot be solved.

Since the pachinko balls are circulated from the bottom to the top in the island facility and supplied to each pachinko game machine, the pachinko ball circulating machines in the island facility and the prize ball tank and the like are provided to the pachinko game machines. There are places where pachinko balls are collected in large quantities. In such a place, pachinko balls collide with each other and static electricity is particularly likely to be generated. Therefore, conventionally, as a countermeasure against static electricity, a method has been adopted in which a metal plate is installed in a prize ball tank, and the metal plate is connected to an earth side such as a game machine main body frame by an earth wire. In addition, various types of pachinko game machines that have taken such a countermeasure against static electricity have been developed, and specific examples thereof include a pachinko game machine disclosed in JP-A-6-269552.
Therefore, the conventional example will be briefly described below with reference to FIGS. FIG. 10 is a perspective view of the pachinko game machine according to the conventional example with the front frame opened. Also,
FIG. 11 is a perspective view of a main part of the pachinko game machine according to the conventional example, with a main board box removed from a mechanism plate.

As shown in FIG. 10, the pachinko game machine 1
Numeral 01 is attached to the front of the side frame 102 such that the front frame 103 is rotatable about a shaft so as to be openable and closable. Front frame 10
A game board 104 is attached to a game board mounting frame 105 so that the game board 104 can be freely attached to and detached from the rear surface of the game board 3. Game board mounting frame 10
Reference numeral 5 is formed of an iron plate which is a conductive member in this conventional example, which is usually formed of a synthetic resin. Game board mounting frame 1
A mechanism plate 106 made of a synthetic resin is attached to one side of the door 05 by a hinge so as to be freely opened and closed. The mechanism plate 106 has a plate-shaped portion 106a facing the back surface of the game board 104 attached to the game board mounting frame 105, and has a size at the approximate center of the plate-shaped portion 106a such that the board box 108 protrudes. Window 107 is formed. A prize ball tank 109 is provided in the upper portion of the rear surface of the plate portion 106a of the mechanism plate 106. A gutter rail 110 is formed below the prize ball tank 109 as a ball passage through which prize balls are aligned and led. A prize ball case 111 for dispensing a predetermined number of prize balls is provided below the gutter rail 110, and a vertical ball passage 11 shown in FIG.
It is connected to 2.

On the other hand, a main board box 113 in which an electronic circuit board for controlling the operation of various electric components is housed is mounted on the mechanism plate 106 as shown in FIG. The main board box 113 includes a cover 1 made of synthetic resin.
14 and a bottom plate 115 made of an iron plate as a conductive member form a box. And this main board box 1
On one side of the bottom plate 115 of the thirteenth, a contact piece 116 bent into an L shape when viewed from the side is integrally formed. On the other hand, the mechanism plate 1 for mounting the main board box 113
An opening 117 is formed at the position 06 corresponding to the plurality of screw holes and the contact pieces 116. Therefore, the main board box 113 is mounted on the mechanism plate 106 and the front frame 103 is mounted.
Is closed, the contact piece 1 penetrating through the opening 117
16 comes into contact with the lower surface 105a stretched below the game board mounting frame 105 (see FIG. 10). Therefore, the static electricity charged on the pachinko ball and the mechanism plate 106 is transferred to the bottom plate 115 of the main board box 113 or the bottom plate 115 of the main board box 113. This escapes to the game board mounting frame 105, so that discharge to the electronic circuit board housed in the main board box 113 can be prevented.

[0007]

However, the above-mentioned conventional pachinko game machine has the following problems. First, in a pachinko game machine in which a metal plate disposed at a position in contact with a charged pachinko ball such as a prize ball tank and a ground wire is connected to the ground side to conduct electricity, the ground is opened and closed when the frame on the ground side is opened and closed. There is a problem that the wire is forcibly pulled and cut. In order to avoid such an accident, it is necessary to remove the metal plate or the contact part of the ground wire on the ground side every time the switch is opened and closed, which is extremely troublesome and reduces the work efficiency. is there.

On the other hand, in the conventional pachinko game machine described with reference to the drawings, the ground wire is not used for discharging the charged static electricity, so there is no inconvenience in opening and closing the frame as described above. There is a problem in the point. First, in the conventional example, the static electricity charged on the pachinko ball and the mechanism plate 106 is removed, but the purpose is to prevent the main substrate from being discharged. Therefore, the game board mounting frame 105 and the bottom plate 115 of the main board box 113 are formed of a conductive member, and when the front frame 103 is closed, both are electrically connected by the contact piece 116 formed integrally with the bottom plate 115. The other control circuits, for example, the electronic circuit boards housed in the board box 108 are still affected by the static electricity charged on the pachinko balls. Therefore, the conventional pachinko game machine can cope with the discharge to the main board, but does not solve the problem when the pachinko ball is discharged to another circuit board.

Further, if the game board mounting frame 105 is formed of a conductive member such as an iron plate in place of the resin frame, there is a problem that the manufacturing cost is increased. Further, the bottom plate 115 of the main board box 113 is an iron plate, and the contact piece 116 is formed integrally with the bottom plate 115, while the opening 117 for passing the contact piece 116 is formed in the game board mounting frame 105. However, there is a problem that the efficiency of the assembly work is reduced and the manufacturing cost is increased due to the number of parts and the complexity of the configuration.

In order to solve the above problems, the present invention provides a pachinko game machine which has a simple structure which is convenient for handling and which can reliably remove static electricity generated by friction of a pachinko ball. With the goal.

[0011]

According to a first aspect of the present invention, there is provided a pachinko game machine having an outer frame, an inner frame openably and closably mounted on the outer frame, and a rear side of the inner frame. A pachinko game machine provided with a prize ball payout system that is provided on a mechanism board to be installed, receives and stores pachinko balls falling from a replenishing device, and sequentially pays out the pachinko balls with payout of prize balls. A conductive member attached to at least one portion of the prize ball payout system, and at least one of the outer frame and the inner frame is made of wood, and the conductive member is attached to at least one of the wooden outer frame and the inner frame. And grounding means for grounding the ground.

In the pachinko game machine according to the first aspect having such features, at least one of the outer frame and the inner frame which is attached to the outer frame so as to be openable and closable is made of wood. At least one of the prize ball payout systems provided on a mechanism board attached to the back side of the inner frame, receives and stores the pachinko balls falling from the replenishing device, and sequentially pays out the pachinko balls with payout of the prize balls. The conductive members are attached at the locations. Then, the conductive member is grounded to a wooden outer frame or a wooden inner frame by grounding means. This allows the static electricity charged by the friction of the pachinko balls or the like to be grounded to the wooden outer frame or the inner frame via the conductive member using the charging line, and the pachinko balls and the like in the prize ball dispensing system to be charged. Static electricity can be reliably removed.

According to a second aspect of the present invention, in the pachinko game machine according to the first aspect, the prize ball payout system includes a prize ball tank for storing pachinko balls, and the conductive member includes: And a first metal plate mounted in the winning ball tank.

According to a second aspect of the present invention, there is provided a pachinko game machine according to the first aspect, wherein the prize ball tank for storing the pachinko balls of the prize ball payout system is provided with a conductive member as a conductive member. One metal plate is attached. As a result, the static electricity charged in the pachinko balls and the like stored in the prize ball tank is grounded to the wooden outer frame or inner frame by using the charging line via the first metal plate. Static electricity charged in the pachinko balls inside can be reliably eliminated with a simple structure.

According to a third aspect of the present invention, in the pachinko game machine according to the second aspect, the outer frame is made of wood, and the first metal plate is closed when the inner frame is closed. The outer frame contacts the outer frame.

According to a third aspect of the present invention, there is provided a pachinko game machine according to the second aspect, wherein the first metal plate contacts the wooden outer frame when the inner frame is closed. It is attached to the prize ball tank. Thereby, since the first metal plate can directly contact the wooden outer frame, a ground wire or the like for grounding to the outer frame or the inner frame is not required, and the material cost can be reduced.
Since it is not necessary to remove the ground wire when opening and closing the inner frame, it is possible to improve the work efficiency in the assembly work and the adjustment work.

According to a fourth aspect of the present invention, in the pachinko game machine according to the third aspect, the outer frame includes a second metal plate attached to a contact portion with the first metal plate. It is characterized by having.

According to a fourth aspect of the present invention, there is provided the pachinko game machine according to the third aspect, wherein the second metal plate is attached to a contact portion of the outer frame with the first metal plate. Can be With this, it is possible to prevent abrasion due to friction between the wooden outer frame and the first metal plate at the time of opening and closing with a simple configuration, and to always take advantage of the fact that the charged columns of the second metal plate and the outer frame are close to each other. It is possible to obtain a stable static electricity removing effect.

According to a fifth aspect of the present invention, in the pachinko game machine according to the second aspect, the prize ball payout system includes a prize ball guiding a prize ball case for paying out a predetermined number of pachinko balls. A guide portion and a tank rail that forms a passage for sending pachinko balls from below the prize ball guide to the prize ball guide portion, wherein the conductive member is provided inside the passage of the tank rail that comes into contact with the pachinko balls. A third metal plate to be attached is included.

According to a fifth aspect of the present invention, there is provided a pachinko game machine according to the second aspect, wherein a predetermined number of pachinko balls are stored in a prize ball tank for storing a pachinko ball constituting a prize ball payout system. A third metal plate, which is a conductive member, is attached to the inside of the passage in contact with the pachinko ball of the tank rail for sending the pachinko ball to the prize ball guide for guiding to the prize ball case for paying out the number of pieces. Thereby, the static electricity charged on the pachinko balls passing through the inside of the tank rail and the static electricity charged on the tank rail itself due to friction with the pachinko balls, etc., pass through the third metal plate, and the outside of the wooden using the charging line. Because it is grounded to the frame or inner frame,
In addition to almost eliminating the static electricity, it is possible to prevent the adverse effect of static electricity on the main board and the like in the board box disposed near the tank rail. Further, even when there is almost no pachinko ball in the prize ball tank, the static electricity charged on the pachinko ball in the tank rail and the tank rail itself can be eliminated through the third metal plate.

According to a sixth aspect of the present invention, in the pachinko game machine according to the fifth aspect, the third metal plate is attached to a position near an entrance of a passage of a tank rail.

According to a sixth aspect of the present invention, there is provided a pachinko game machine according to the sixth aspect, wherein the third metal plate is mounted at a position near an entrance of a passage of a tank rail. Since almost all the static electricity charged in the pachinko ball at the rail entrance can be eliminated, the adverse effect of the static electricity on the main board and the like in the board box disposed near the tank rail can be more effectively prevented. Further, even when there is almost no pachinko ball in the prize ball tank, the static electricity charged on the pachinko ball in the tank rail and the tank rail itself can be eliminated through the third metal plate. Further, since the pachinko balls fall from the prize ball tank onto the third metal plate, it is possible to prevent wear and the like due to the fall of the pachinko balls at the tank rail entrance.

According to a seventh aspect of the present invention, in the pachinko game machine according to the fifth aspect, a prize ball path for sending a pachinko ball to a prize ball payout outlet is formed in the prize ball guide section. The conductive member includes a fourth metal plate mounted in the award ball passage.

According to a seventh aspect of the present invention, there is provided a pachinko game machine according to the fifth aspect, wherein the pachinko game machine comprises a conductive member in a prize ball passage formed in the prize ball guide. A metal plate is attached. As a result, the static electricity charged on the pachinko ball passing through the tank rail or the prize ball guide is grounded to the wooden outer frame or inner frame using the charging line via the fourth metal plate, so that almost all static electricity can be eliminated. At the same time, it is possible to prevent adverse effects of static electricity on the relay circuit board and the like disposed near the winning ball guide.

According to an eighth aspect of the present invention, in the pachinko game machine according to the seventh aspect, the plurality of prize ball paths are formed, and the fourth metal plate is provided in each of the prize ball paths. It is characterized in that it can be attached to.

According to a pachinko game machine according to claim 8 having such a feature, in the pachinko game machine according to claim 7, a fourth metal plate is attached to each of a plurality of prize ball paths formed in the prize ball guide section. Therefore, static electricity charged on the pachinko ball passing through the prize ball guide can be reliably eliminated.

A pachinko game machine according to a ninth aspect of the present invention is the pachinko game machine according to the seventh aspect, wherein the pachinko game machine is fixed to the back side of the inner frame and receives a prize ball overflowing from the upper plate to the lower plate. A lower plate receiving portion for guiding, the conductive member includes:
A fifth metal plate sandwiched between the lower plate receiving portion and the inner frame, wherein the inner frame is made of wood, and the grounding means includes a first metal plate, a third metal plate, At least one of the four metal plates is grounded to the fifth metal plate.

According to a ninth aspect of the present invention, there is provided a pachinko game machine according to the ninth aspect, wherein a wooden inner frame and a lower plate receiving portion attached to the inner frame by screws or the like are provided. At least one of the first metal plate, the third metal plate, and the fourth metal plate is grounded by a grounding means to a fifth metal plate sandwiched and fixed between the first metal plate and the fifth metal plate. Thereby, the static electricity charged in the pachinko ball flows from the metal plate grounded to the fifth metal plate among the first metal plate, the third metal plate, and the fourth metal plate to the fifth metal plate, and
Since the inner frame is grounded by utilizing the closeness of the charging line between the metal plate and the wooden inner frame, it is possible to almost completely eliminate static electricity which adversely affects the main substrate and the like.

According to a tenth aspect of the present invention, in the pachinko game machine according to the ninth aspect, the fifth metal plate has an extending portion that covers a bottom surface in the lower plate receiving portion. And

According to a tenth aspect of the present invention, there is provided the pachinko game machine according to the ninth aspect, wherein one end of the fifth metal plate covers the bottom surface of the lower plate receiving portion. Since the static electricity charged to the pachinko ball at the entrance can be almost completely eliminated through the fifth metal plate, the adverse effect of the static electricity on the control board and the like in the control box disposed near the lower tray receiving portion can be effectively prevented. Can be prevented. Further, since the pachinko balls fall from the upper plate onto the fifth metal plate in the lower plate receiving portion, it is possible to prevent wear and the like due to the falling of the pachinko balls on the bottom surface of the lower plate receiving portion.

[0031] In the pachinko game machine according to claim 11, in the pachinko game machine according to claim 9, the grounding means includes at least one of the first metal plate, the third metal plate, and the fourth metal plate. And at least one relaying sixth metal plate connected to the second metal plate and the fifth metal plate.

The pachinko game machine according to the eleventh aspect having the above features is the pachinko game machine according to the ninth aspect, wherein the grounding means includes the first metal plate, the third metal plate, and the fourth metal plate. Is connected once to the sixth metal plate for relay, and then the fifth metal plate is connected through the sixth metal plate.
Since the wire is connected to the metal plate and grounded to the wooden inner frame, it is possible to shorten the length of the ground wire drawn from each of the first metal plate, the third metal plate, and the fourth metal plate. In addition, since a single grounding wire can be provided from the sixth metal plate to the fifth metal plate, the number of grounding wires can be significantly reduced, and work efficiency can be improved.

In a pachinko game machine according to a twelfth aspect, in the pachinko game machine according to the fourth or eleventh aspect, the first to sixth metal plates are formed of a metal having high conductivity. The feature is that.

A pachinko game machine according to a twelfth aspect having such features is the pachinko game machine according to the fourth or eleventh aspect, wherein the first metal plate to the sixth metal plate are formed of a highly conductive metal. Therefore, when the outer frame or the inner frame is made of wood, the positions of the charging columns are very close, and the static elimination effect can be further enhanced.

According to a thirteenth aspect of the present invention, in the pachinko game machine according to the fourth or eleventh aspect, the first to sixth metal plates are formed of a corrosion-resistant metal. It is characterized.

According to a thirteenth aspect of the present invention, there is provided a pachinko game machine according to the fourth or eleventh aspect, wherein the first to sixth metal plates are made of a corrosion-resistant metal. Therefore, it is possible to constitute a grounding means having excellent corrosion resistance.

[0037]

Next, an embodiment of the pachinko game machine according to the present invention will be specifically described. FIG.
FIG. 1 is a rear view showing the entire pachinko game machine according to the present embodiment. This pachinko game machine 1 pays out a predetermined amount of pachinko balls as prize balls, and a wooden outer frame 2 is provided.
, A wooden inner frame 16 is attached to be openable and closable via a hinge member or the like. A metal mechanical board 17 such as an iron plate is attached to a substantially central portion of the inner frame 16 so that the game board can be detached. And this mechanical panel 1
On one side of 7, a mechanism set board 3 made of synthetic resin is attached by a hinge so as to be freely opened and closed. Outer frame 2 and inner frame 16
At present, resin is mainly used, but in the present embodiment, it is made of wood in order to obtain a static elimination effect described later. At the uppermost stage on the back side of the pachinko game machine 1, a prize ball tank 4 opened upward is fixed to the mechanism set board 3. A replenishing device 5 is provided immediately above the prize ball tank 4, and a discharge unit 5a is vertically lowered. The prize ball tank 4
A communication hole 4A (see FIG. 3) is formed on the inclined bottom surface, and an inclined tank rail 6 capable of aligning and discharging pachinko balls in two rows is attached below the communication hole 4A. Also,
In the prize ball tank 4, an earth plate 14 constituting a first metal plate which is a conductive member described later is mounted on a side surface thereof. Further, a tank rail grounding plate 22 constituting a third metal plate, which is a conductive member described later, is attached to the pachinko ball entrance of the tank rail 6 (see FIG. 4). Also,
A grounding relay plate 21 that forms a sixth metal plate, which is a conductive member described later, is screwed to the mechanism set board 3 at a substantially central rear side of the tank rail 6.

Further, in the prize ball guide 7 for guiding the pachinko balls to the prize ball case 12, two rows of prize ball passages 8 for sending out the pachinko balls on the downstream side of the tank rail 6 with further reduced pressure are formed. The gutters 8A and 8B are screwed, and in each of the prize ball passages 8, prize ball case grounding plates 23 and 24 constituting a fourth metal plate, which is a conductive member described later, are sandwiched inside, and screwed. (See FIG. 5). The prize ball case 12 is provided with a confirmation switch for confirming the number of pachinko balls passing through each prize ball passage 8, a payout solenoid for adjusting the delivery of the pachinko balls, and the like (both are not shown). The winning ball tank 4, the tank rail 6, the winning ball guide 7, the winning ball case 12, the confirmation switch, the payout solenoid and the like constitute a winning ball payout system. A discharge section is formed on the downstream side of the prize ball case 12, and a discharge path 9a and a discharge path 9b in which a lower tray full switch is housed are formed so as to open downward at the lower end. Below the opening, a lower tray box 19 constituting a lower plate receiving portion that receives a prize ball overflowing from the upper plate and guides the lower plate to the lower plate is attached to the back side of the inner frame 16 by bolts. In addition, this lower saucer box 19
A lower saucer earth plate 25 constituting a fifth metal plate which is a conductive member described later is sandwiched and fixed between the inner frame 16 and the inner frame 16 (see FIG. 6).

On the mechanism set board 3, a main board 10 arranged in a board box is fixed in a state of being mounted on a center cover 11 covering the back of the game board.
The main board 10 is provided with a control circuit for controlling a game operation of the pachinko game machine 1 and the like. And
The control circuit includes a CPU capable of executing a control operation in a predetermined procedure, a ROM for storing operation program data thereof, a RAM for writing and reading data,
Alternatively, a microcomputer including an input / output circuit and a clock generator is mounted. A control box 18 on which a control board is mounted is mounted below the main board 10. This control board constitutes a control circuit for controlling award ball payout and the like. Further, an upper corner portion of the mechanism set board 3 (FIG. 1)
In the middle and upper right corner), a relay board 20 is provided.
The relay board 20 is a board that connects the pachinko game machine 1 and a hall computer.

Next, the prize ball tank ground plate 14 attached to the prize ball tank 4 will be described with reference to FIGS. FIG. 2 shows a pachinko game machine 1 according to the present embodiment.
FIG. 2 is a perspective view showing a prize ball tank 4 of FIG. FIG. 3 is a partial sectional view showing a side surface of the pachinko game machine 1 according to the present embodiment. As shown in FIG. 2, the prize ball tank 4 has a box shape opened upward, and a prize ball tank ground plate 14 made of zinc-plated copper is mounted on a side of the mechanism set board 3 side. The winning ball tank ground plate 14 is formed by projecting a contact piece 14A on one side in the longitudinal direction of a rectangular plate material, and is formed by projecting a vertically bent step piece 14B on the communication hole 4A to the tank rail 6. ing.

As shown in FIG. 3, the contact piece 14A of the winning ball tank ground plate 14 is mounted so that the top of the contact piece 14A contacts the outer frame 2. And the outer frame 2 of the pachinko game machine 1
Is made of wood as described above, and a discharge plate 15 constituting a second metal plate, which is a conductive member, is attached to a contact portion of the winning ball tank ground plate 14 where the contact piece 14A comes into contact. Is being worn. For the discharge plate 15, for example, aluminum or stainless steel is used. On the other hand, the step piece 14B is inserted into a communication hole 4A opened at the bottom of the prize ball tank 4.

As a result, the pachinko balls stored in the prize ball tank 4 are removed from the prize ball tank 4 by the static elimination means including the prize ball tank ground plate 14 and the discharge plate 15 attached to the outer frame 2. Even if a lot of static electricity is charged due to a violent collision, the electric charge is grounded to the wooden outer frame 2 via the discharge plate 15 by contacting the prize ball tank ground plate 14. In particular, since the prize ball tank ground plate 14 is provided along the flow of the pachinko balls in the prize ball tank 4 to the communication hole 4A, the static electricity of the pachinko balls stored in the prize ball tank 4 is: Almost all electricity is removed before reaching the tank rail 6.

Next, the tank rail ground plate 22 attached to the tank rail 6 will be described with reference to FIG. FIG. 4 is a perspective view showing the mounting of the tank rail grounding plate 22 to the tank rail 6 of the pachinko game machine 1 according to the present embodiment. As shown in FIG. 4, in the tank rail 6 made of synthetic resin, two rows of passages are formed by ribs 6A provided on a flat portion on the bottom surface inside the passage. Also,
A side wall 6B is provided at the end face of the passage entrance portion facing the communication hole 4A of the prize ball tank 4, and the side wall 6B is smoothly curved from the lower edge to the bottom surface. The tank rail grounding plate 22 made of aluminum, stainless steel or the like is substantially L-shaped.
The bottom of the tank rail 6
Is formed so as to follow the curvature of the bottom surface of the passage entrance portion. A groove 22A is formed in a portion facing the rib 6A, so that the tank rail ground plate 22 is in close contact with the bottom surface inside the passage of the tank rail 6.
At each end face portion that is in close contact with the bottom surface, mounting pieces 22B, 22B that are bent downward at right angles are formed, and are inserted into through holes formed in the bottom surface of the tank rail 6 at the time of mounting, and then bent at right angles. Bendable. The edge of the side surface of the tank rail ground plate 22 that is in close contact with the side wall 6B is bent outward at a right angle, and then bent downward at a width substantially equal to the thickness of the side wall 6B. Then, a connection piece 22C is attached to this end face.
Are bent outward at substantially right angles. Thus, the tank rail ground plate 22 is attached to the passage entrance of the tank rail 6 by inserting the bent portion into the side wall 6B and bending each of the mounting pieces 22B, 22B.

As a result, the static electricity of the pachinko balls, which could not be completely removed by the prize ball tank ground plate 14 mounted in the prize ball tank 4, falls from the prize ball tank 4 to the tank rail 6. When it comes in contact with the tank rail ground plate 22, it flows to the tank rail ground plate 22. In addition, the static electricity charged when being sent through the tank rail 6 also causes an electrostatic charge to flow to the tank rail grounding plate 22 via each pachinko ball when the pachinko ball is clogged in the tank rail. Further, static electricity charged by the friction between the tank rail 6 and the pachinko ball or the like also flows through the tank rail grounding plate 22.

Next, the winning ball passage grounding plates 23 and 24 attached to the respective winning ball passages 8 of the winning ball guide section 7 will be described with reference to FIG. FIG. 5 is a view illustrating each prize ball path ground plate 2 on the mechanism set board 3 of the pachinko game machine 1 according to the present embodiment.
It is a perspective view which shows attachment of 3 and 24 and each sending gutter 8A, 8B. As shown in FIG. 5, each of the synthetic resin outlet gutters 8A, 8A
On the mechanism set board 3 side of B, a groove for a prize ball passage having a substantially S shape is formed. The prize ball passage grounding plate 23 made of aluminum, stainless steel, or the like fixed and sandwiched between the mechanism set board 3 and the delivery gutter 8A substantially covers the groove formed for the prize ball passage of the delivery gutter 8A. It is formed as follows. In addition, a through hole 23A for attachment and a through hole 23B into which a connection piece 24A of the prize ball passage ground plate 24 is inserted are formed substantially at the center of the prize ball passage ground plate 23 which does not cover this groove. A connection piece 23C bent at a right angle to the mechanism set board 3 side is formed substantially at the center of the upper end surface of the prize ball passage ground plate 23. The prize ball passage grounding plate 24 made of aluminum, stainless steel or the like is formed in a substantially S-shape so as to cover a groove formed for the prize ball passage of the delivery gutter 8B. A connection piece 2 bent at a right angle toward the mechanism set board 3 is provided inside the bent portion substantially at the center.
4A are formed. Each prize ball passage ground plate 23, 24
And the delivery gutters 8A and 8B are attached to the prize ball passage ground plate 2
3 while inserting the post 3C of the mechanism set board 3 into the through hole 23A, the connecting piece 23C is connected to the through hole 3A of the mechanism set board 3.
To bring the winning plate passage ground plate 23 into close contact with the mechanism set board 3. Next, the delivery gutter 8A is connected to the prize ball passage ground plate 23.
In close contact. Next, the connection piece 2 of the prize ball passage ground plate 24
4A is inserted into the through hole 3B of the mechanism set board 3, and is closely attached to the prize ball gutter 8A. Next, the delivery gutter 8B is brought into close contact with the prize ball path ground plate 24, and attached by screws.

As a result, two rows of the prize ball passages 8 are formed in the prize ball guide portion 7, and one side surface of each of the prize ball passages 8 is formed by the prize ball passage grounding plates 23 and 24. Therefore, the pachinko balls in each of the prize ball passages 8 formed in the prize ball guide portion 7 come into contact with the respective prize ball passage grounding plates 23 and 24, and therefore, due to friction with the tank rail 6 and the prize ball passage 8. When a large amount of static electricity is charged, static electricity will flow through each of the prize ball passage ground plates 23 and 24 when the prize ball passage 8 is sent.

Next, the lower tray box 19 made of synthetic resin is used.
The lower saucer earth plate 25 made of aluminum, stainless steel, etc., which is sandwiched and attached between the inner plate 16 and the wooden inner frame 16 will be described with reference to FIG. FIG. 6 is a view showing the lower tray earth plate 2 on the inner frame 16 of the pachinko game machine 1 according to the present embodiment.
FIG. 5 is a perspective view showing the mounting of a lower tray and a lower tray;
As shown in FIG. 6, a lower bowl outlet 16B is formed substantially at the center of the lower side of the wooden inner frame 16. The lower saucer earth plate 25 sandwiched and fixed between the inner frame 16 and the lower saucer box 19 is connected to the lower saucer ball outlet 16B.
Is formed in a substantially U-shape so as to cover the left, right, and lower portions of the peripheral portion, and the end surface of the lower peripheral portion extends substantially perpendicularly to the rear side to form an extended portion 25A. This extension 25
A has substantially the same shape as the inner bottom surface of the lower receiving box 19. In addition, connection pieces 25B, 25B are formed at the left and right end edges of the rear end face of the extension 25A. On the left side of the lower receiving earth plate 25, a connection piece 25C is punched and then bent at a right angle to the rear side. Also,
The lower saucer ball outlet 1
A relief portion is formed to avoid each mounting hole 16A for mounting the lower receiving box 19 formed on the left and right of 6B. In the lower receiving box 19, mounting holes 19A, 19A are formed at positions corresponding to the mounting holes 16A, 16A of the inner frame 16, and at positions corresponding to the connection pieces 25C of the lower receiving earth plate 25. Has a through hole 19B for connection, and a through hole (not shown) formed at a position corresponding to each of the connection pieces 25B, 25B.

The mounting of the lower receiving earth plate 25 and the lower receiving box 19 is performed by bringing the lower receiving earth plate 25 into close contact with the inside of the inner frame 16 so as to cover the lower peripheral portion of the inner frame 16. Each of the connection pieces 2 is inserted into a through hole (not shown) formed at each of the left and right rear ends of the bottom surface of the lower receiving box 19 while the extension portion 25A is inserted inside the lower tray.
5B, the connection piece 25C is inserted into the connection through hole 19B, and the lower receiving box 19 is
It is attached with bolts.

The prize ball falling into the lower receiving box 19 is charged with a large amount of static electricity due to friction with the discharge portions 9a and 9b and the lower receiving box 19 made of synthetic resin. Extension part 25 of saucer earth plate 25
By contacting A, electrostatic charges are discharged to the wooden inner frame 16 via the lower receiving earth plate 25.

Next, grounding of the ground plates 22, 23, 24 to the lower receiving plate ground plate 25 via the grounding relay plate 21 will be described with reference to FIG. FIG. 7 is a perspective view showing a connection state of the grounding relay plate 21, the tank rail grounding plate 22, the respective prize ball passage grounding plates 23 and 24, and the lower receiving tray grounding plate 25 of the pachinko game machine 1 according to the present embodiment. is there. As shown in FIG. 7, a connection piece 31 is formed on an end face of the tank rail 6 on the side of the passage of the tank rail 6 of the grounding relay plate 21 made of aluminum, stainless steel, or the like, which is screwed to the back side of the tank rail 6 of the mechanism set board 3. In addition, connection pieces 32, 33, and 34 are formed on the end face of the prize ball guide 7 side. The connection piece 22C of the tank rail ground plate 22 and the connection piece 31 of the grounding relay plate 21 are connected by a connector via a ground wire 36. Also, prize ball passage ground plate 2
The third connection piece 23C and the connection piece 32 of the grounding relay plate 21 are connected by a connector via a ground wire 37. The connection piece 24A of the prize ball path ground plate 24 and the connection piece 33 of the grounding relay plate 21 are connected by a connector via a ground wire 38. Also, the connection piece 34 of the grounding relay plate 21 and the connection piece 2 of the lower saucer earth plate 25
5C is connected by a connector via a ground wire 39. Further, the lower receiving earth plate 25 is pressed against the peripheral edge of the lower ball outlet 16B of the wooden inner frame 16 and is in surface contact therewith. Thereby, each ground plate 22, 23, 2
The static charge that has flowed through 4 flows through the ground wires 36, 37, 38 to the grounding relay plate 21. Then, the electric charge of the static electricity flowing through the grounding relay plate 21 is transferred to the ground wire 39.
, And flows to the lower receiving earth plate 25, and is grounded to the wooden inner frame 16 which is in surface contact with the lower receiving earth plate 25.

Next, a description will be given of an experimental example in which the effect of removing static electricity from the winning ball tank ground plate 14 in the pachinko game machine 1 having the above-described configuration has been confirmed with reference to FIG. FIG.
FIG. 4 is a view showing an experimental result of an electrostatic neutralization effect measurement experiment using the prize ball tank ground plate 14 of the pachinko game machine 1 according to the present embodiment. First, in the experiment of the static electricity removing effect by the prize ball tank ground plate 14, a ground wire is attached to the prize ball tank ground plate 14, and this ground wire is not connected to the ground side (that is, not connected to the outer frame 2). Case),
(2) When an earth wire is connected to the metal plate adhered to the plastic outer frame 2 (that is, when the outer frame 2 is made of synthetic resin), (3) Discharge adhered to the wooden outer frame 2 The case where the ground wire was connected to the plate 15 was compared. The installation method is such that the prize ball tank ground plate 14 is mounted in the prize ball tank 4 of the pachinko game machine 1 so as to contact the pachinko ball,
In the cases (2) and (3), one end of the ground wire is connected to the winning ball tank ground plate 14, and the other end is connected to the discharge plate 15 attached to the plastic or wooden outer frame 2. Then, at a position 25 mm in parallel with the prize ball tank ground plate 14 attached to the prize ball tank 4, an electrostatic measurement device (Simco Japan Corporation Model FM200) is installed. Next, by paying out the pachinko balls of the pachinko game machine 1, the pachinko balls which move in the prize ball tank 4 and come into contact with each other are charged with static electricity. When the static electricity in the prize ball tank 4 rises to about 1000 volts, the payout of the prize ball is stopped and the measurement is performed. Thereafter, the value of the static electricity measurement value is set to a predetermined time interval (in this experiment, every 30 seconds, 10 minutes).
Read with.

FIG. 8 shows the results of the above experiment. First,
(1) A solid line indicates a change in electrostatic energy of the winning ball tank ground plate 14 when not connected to the ground side. The initial value was about 100 mVA. After 0.5 minutes, about 9
It was 8 mVA. After one minute, it was about 97 mVA.
After 2 minutes, it was about 95 mVA. After 3 minutes, about 94m
VA. After 4 minutes, it was about 91 mVA. After 5 minutes, it was about 92 mVA. After 6 minutes, about 89mVA
Met. After 7 minutes, it was about 89 mVA. After 8 minutes, it was about 88 mVA. After 9 minutes, it was about 85 mVA. After 10 minutes, it was about 84 mVA. Also,
(2) Prize ball tank ground plate 14 when a ground wire is connected to a metal plate adhered to plastic outer frame 2
The change of the electrostatic energy of FIG. The default value is
It was about 100 mVA. After 0.5 minutes, about 78mVA
Met. After one minute, it was about 76 mVA. After 2 minutes, it was about 73 mVA. After 3 minutes, it was about 70 mVA. After 4 minutes, it was about 67 mVA. After 5 minutes,
It was about 64 mVA. After 6 minutes, it was about 62 mVA. After 7 minutes, it was about 60 mVA. After 8 minutes, about 5
It was 8 mVA. After 9 minutes, it was about 56 mVA.
After 10 minutes, it was about 55 mVA. (3) The broken line shows the change in electrostatic energy of the winning ball tank ground plate 14 when the ground wire is connected to the discharge plate 15 attached to the wooden outer frame 2. The initial value was about 100 mVA. After 0.5 minute, it was about 19 mVA. One minute later,
It was about 19 mVA. After 2 minutes, it was about 16 mVA. After 3 minutes, it was about 8 mVA. After 4 minutes, about 11
mVA. After 5 minutes, it was about 8 mVA. After 6 minutes, it was about 10 mVA. After 7 minutes, it was about 9 mVA. After 8 minutes, it was about 8 mVA. After 9 minutes, it was about 5 mVA. After 10 minutes, it was about 6 mVA.

As is evident from the results, the discharge effect when the earth wire was connected to the discharge plate 15 attached to the wooden outer frame 2 was extremely large. The difference was obvious when compared to the case where the ground wire was connected to the metal plate stuck to the plastic outer frame 2 as well as the case where nothing was grounded. This result may be due to the following. First, since the wooden outer frame 2 used in the present embodiment also contains moisture, it has a high electric charge leakage effect and a high conductivity. Therefore, the static electricity charged in the pachinko ball is easily discharged to the ground side, and the static elimination effect is increased by that amount. Secondly, a combination of metal and wood, which are materials whose positions in the charging train are as close as possible, is combined.
Since the positions of the charged columns of metal and wood are very close, the difference in charge between the two is very small, while the position of metal and plastic is far. Therefore, in the case of the wooden outer frame 2, the electric charge is easily transmitted to the metal, and the static electricity charged in the pachinko ball is easily discharged to the ground side, so that the static electricity removing effect is high. Therefore, the pachinko game machine 1 of the present embodiment
The static electricity generated in the prize ball tank 4 can be efficiently removed by grounding the wooden outer frame 2 by the prize ball tank ground plate 14.

Next, a description will be given of an experimental example in which the effect of eliminating the static electricity of the lower saucer earth plate 25 in the pachinko game machine 1 having the above configuration is confirmed with reference to FIG. FIG.
Tank rail 6 of pachinko game machine 1 according to the present embodiment
FIG. 4 is a diagram for explaining the results of an experiment for measuring the amount of electrostatic charge of static electricity,
6A is a diagram illustrating a measurement result of a charge amount at a passage entrance of the tank rail 6, and FIG. 6B is a diagram illustrating a measurement result of a charge amount at a passage exit of the tank rail 6. First, the tank rail ground plate 22 and the prize ball passage ground plates 23 and 24 are connected to the grounding relay plate 21 via the ground wires 36, 37 and 38, respectively, and the ground relay plate 21 is connected to the ground wire 39. Connection to the lower saucer earth plate 25 via the
4 is brought into contact with the discharge plate 15 of the wooden outer frame 2. And 2 parallel from the passage entrance of the tank rail 6
The first static electricity measuring device (Model FM200, Simco Japan Co., Ltd.) is installed at a position 5 mm away.
In addition, a second static electricity measuring device (Simco Japan Co., Ltd. Model FM200) is installed at a position 25 mm in parallel with the passage exit of the tank rail 6. Next, by paying out the pachinko balls of the pachinko game machine 1, the pachinko balls which move in the prize ball tank 4 and come into contact with each other are charged with static electricity. When (1) the pachinko balls are continuously sent while contacting each other in the tank rail 6 (hereinafter, referred to as balls), (2) the pachinko balls are sent while being interrupted in the tank rail 6. The measurement is made in the case (hereinafter referred to as “no ball”).

FIG. 9 shows the results of the above experiment performed five times. First, FIG. 9A shows a measurement result at the entrance of the tank rail. (1) When there is a ball, as indicated by a solid line with a circle, the first time is about -0.03 kVA, the second time is about -0.05 kVA, the third time is about -0.06 kVA, and the fourth time is about -0.06 kVA. -0.04 kVA, the fifth time is about -0.04 kVA
(2) When there is no ball, as shown by the broken line with a cross, the first time is about 0.6 kVA, and the second time is about 0.09 kVA.
VA, about 0.19 kVA for the third time, about 0.09 for the fourth time
The kVA was about 0.05 kVA the fifth time. FIG. 9B shows the measurement result at the tank rail outlet.
(1) When there is a ball, as shown by the solid line with a circle, 1
The first time is about 0.3 kVA, the second time is about 0.4 kVA, the third time is about 0.37 kVA, the fourth time is about 0.4 kVA, the fifth time is about 0.8 kVA, and (2) when there is no ball, ,
As shown by the broken line with a cross, the first time was about -0.5 kVA,
The second time is about -0.6 kVA, the third time is about -0.6 kV
A, the fourth time is about -0.66 kVA, the fifth time is about -0.8
kVA.

As is clear from the results, not only the grounding effect of the prize ball tank grounding plate 14 but also the respective tank rail grounding plates 22,
The static electricity flowing to the prize ball passage grounding plates 23 and 24 is discharged to the wooden inner frame 16 near the position in the charging line with high efficiency via the grounding relay plate 21 and the lower saucer grounding plate 25, The static electricity removal effect was high.

As described in detail above, in the pachinko machine 1 of the present embodiment, the prize ball tank ground plate 14 is provided in the prize ball tank 4, and the contact piece 14A formed on the prize ball tank ground plate 14 is provided. However, when the inner frame 16 is closed, it is configured to contact the discharge plate 15 attached to the wooden outer frame 2. The tank rail earth plate 6 is attached to the passage entrance of the tank rail 6, and the prize ball passage earth plates 23 and 24 are attached to each prize ball passage 8 of the prize ball guide 7. The grounding relay plate 21 is attached to the back side of 6 by screwing. In addition, a lower saucer earth plate 25 is attached between the lower saucer box 19 and the wooden inner frame 16. Each of the ground plates 22, 23 and 24 is connected to the grounding relay plate 2.
1 and the ground wires 36, 37,
38 and 39 are connected. As a result, the static electricity charged in the pachinko balls in the prize ball tank 4 is efficiently discharged by the prize ball tank ground plate 14 to the wooden outer frame 2 near the position in the charging line via the discharge plate 15. You. In addition, the pachinko ball sent into the tank rail 6 and the charged static electricity of the tank rail 6 itself, and the prize ball guide 7
The static electricity charged in the pachinko ball sent into the inside of the pachinko ball is located near the position in the charging line via the lower tray earth plate 25 connected and connected by each of the earth plates 22, 23, 24 and the earth relay plate 21. It is discharged to the wooden inner frame 16 with high efficiency. Further, the static electricity charged in the pachinko balls overflowing from the upper plate and falling into the lower plate bucket is also affected by the lower tray earth plate 25.
, And is discharged with high efficiency to the wooden inner frame 16 whose position in the charging train is close.

Therefore, the static electricity charged on the pachinko balls in the prize ball tank 4 and the tank rail 6 and the static electricity charged on the tank rail 6 itself are reduced by the prize ball tank ground plate 1.
4 is discharged to the wooden outer frame 2 and the inner frame 16 that are close to each other in the charging row via the tank rail ground plate 22 and the main board 1 disposed below the passage entrance of the tank rail 6.
It is possible to prevent an adverse effect on a control circuit constituting 0, especially on a microcomputer. Further, even when there is almost no pachinko ball in the prize ball tank, since the static electricity charged in the pachinko ball or the like in the tank rail 6 can be eliminated, the adverse effect of the static electricity on the main substrate 10 or the like can be prevented more reliably. In addition, static electricity charged in the pachinko ball in the passage exit portion of the tank rail 6 and the pachinko ball in the prize ball guide portion 7 is also eliminated through the prize ball passage grounding plates 23 and 24.
The adverse effect of static electricity on the relay board 20 and the like disposed above the passage exit portion of the above can be prevented. Furthermore, since the static electricity that charges the pachinko balls in the lower receiving box 19 is also eliminated through the lower receiving ground plate 25, the lower receiving box 19 is removed.
Adverse effect of static electricity on the circuit board and the like in the control box 18 disposed above the control box 18 can be prevented. In addition, the discharge plate 15 adhered to the outer frame 2 in contact with the prize ball tank ground plate 14 provided in the prize ball tank 4 and the contact piece 14A thereof, and the ground plates 22, 23, 24, 25 and the relay for grounding. Board 21
Is a very simple configuration that is connected and connected, so the number of parts and the ease of assembling make it possible to remove static electricity at low cost and with high efficiency. Cost can be reduced.
In the present embodiment, the contact piece 14A of the ground plate 14 is used.
Is brought into contact with the discharge plate 15 to discharge the static electricity charged in the pachinko ball to the ground side of the outer frame 2, so that a ground wire for discharging the static electricity to the ground side becomes unnecessary,
When opening and closing the inner frame 16 and the like, the work of removing the ground wire and the like can be omitted, and the work can be performed smoothly, and the work efficiency in the assembly work and the adjustment work can be improved. Further, since the pachinko balls fall from the prize ball tank 4 onto the tank rail grounding plate 22, it is possible to prevent wear and the like due to the fall of the pachinko balls at the passage entrance of the tank rail 6. Further, since the pachinko balls fall from the upper plate onto the lower plate ground plate 25 covering the bottom surface in the lower plate box 19, it is possible to prevent wear and the like due to the fall of the pachinko balls in the lower plate box 19. Furthermore, each ground plate 1
4, 22, 23, 24, 25, the relay plate 21 for grounding, and the discharge plate 15 are made of aluminum, stainless steel, or the like.
When the outer frame 2 or the inner frame 16 is made of wood, the position in the charging line is very close, and the static elimination effect can be further enhanced, and the grounding means having excellent corrosion resistance can be configured.

It should be noted that the present invention is not limited to the above-described embodiment, and various improvements and modifications can be made without departing from the scope of the present invention. Good. (A) Although the discharge plate 15 is adhered to the outer frame 2 in the above embodiment, the contact piece 14A of the winning ball tank ground plate 14 may be brought into direct contact with the outer frame 2. (B) In the above embodiment, the outer frame 2 and the inner frame 16 are made of wood. However, the effect may be reduced, but they may be made of plastic. (C) The shapes of the winning ball tank ground plate 14, the discharge plate 15, each of the ground plates 22, 23, 24, 25, and the relay plate 21 for grounding may be various shapes in addition to the shape of the embodiment. . (D) The material of the prize ball tank ground plate 14, the discharge plate 15, the ground plates 22, 23, 24, 25, and the grounding relay plate 21 are also made of zinc, copper, aluminum, stainless steel, chrome, etc. May be used, and those having high conductivity and being hard to corrode are preferable. (E) In the above embodiment, the prize ball tank ground plate 14 is grounded to the wooden outer frame 2 via the discharge plate 15, but may be grounded to the wooden inner frame 16 by a ground wire or the like. (F) In the above embodiment, the contact piece 14A of the prize ball tank ground plate 14 is in contact with the discharge plate 15, but the contact piece 14A of the prize ball tank ground plate 14 is removed to form a contact piece for connection. And the grounding relay plate 21
May be connected.

[0060]

As described above, in the pachinko game machine according to the first aspect, at least one of the outer frame and the inner frame openably and closably attached to the outer frame is made of wood. And it is provided on the mechanism panel attached to the back side of the inner frame,
A conductive member is attached to at least one portion of the prize ball payout system that receives and stores the pachinko balls falling from the replenishing device and sequentially pays out the pachinko balls with payout of the prize balls. Then, the conductive member is grounded to a wooden outer frame or a wooden inner frame by grounding means. This allows the static electricity charged by the friction of the pachinko balls or the like to be grounded to the wooden outer frame or the inner frame via the conductive member using the charging line, and the pachinko balls and the like in the prize ball dispensing system to be charged. It is possible to provide a pachinko game machine capable of reliably removing the generated static electricity.

According to a second aspect of the present invention, in the pachinko game machine according to the first aspect, the first metal plate as a conductive member is provided in the prize ball tank for storing the pachinko balls of the prize ball payout system. It is attached. As a result, the static electricity charged in the pachinko balls and the like stored in the prize ball tank is grounded to the wooden outer frame or inner frame by using the charging line via the first metal plate. It is possible to provide a pachinko game machine capable of surely removing static electricity charged in a pachinko ball therein with a simple structure.

According to a third aspect of the present invention, in the pachinko game machine according to the second aspect, the first metal plate has an award such that the first metal plate contacts a wooden outer frame when the inner frame is closed. Mounted on a ball tank. As a result, the first metal plate can directly contact the wooden outer frame, which eliminates the need for a ground wire or the like for grounding the outer frame or the inner frame, thereby reducing material costs and grounding when opening and closing the inner frame. Since it is not necessary to remove the line, it is possible to provide a pachinko game machine capable of improving work efficiency in assembling work and adjusting work.

According to a fourth aspect of the present invention, in the pachinko game machine according to the third aspect, the second metal plate is attached to a contact portion of the outer frame with the first metal plate. With this, it is possible to prevent abrasion due to friction between the wooden outer frame and the first metal plate at the time of opening and closing with a simple configuration, and to always take advantage of the fact that the charged columns of the second metal plate and the outer frame are close to each other. A pachinko game machine capable of obtaining a stable static electricity removing effect can be provided.

In the pachinko game machine according to a fifth aspect, in the pachinko game machine according to the second aspect, a predetermined number of pachinko balls are paid from a prize ball tank for storing pachinko balls constituting a prize ball payout system. A third metal plate, which is a conductive member, is attached to the inside of the passage of the tank rail that sends the pachinko balls to the prize ball guide for guiding to the prize ball case to be put out. Thereby, the static electricity charged on the pachinko balls passing through the inside of the tank rail and the static electricity charged on the tank rail itself due to friction with the pachinko balls, etc., pass through the third metal plate, and the outside of the wooden using the charging line. Provided is a pachinko game machine capable of almost eliminating static electricity because it is grounded to a frame or an inner frame, and capable of preventing an adverse effect of static electricity on a main board or the like in a board box disposed near the tank rail. can do. Further, even when there is almost no pachinko ball in the prize ball tank, a pachinko game machine capable of removing static electricity charged in the pachinko ball in the tank rail and the tank rail itself through the third metal plate can be provided.

In the pachinko game machine according to a sixth aspect of the present invention, in the pachinko game machine according to the fifth aspect, since the third metal plate is mounted at a position near the entrance of the tank rail, the pachinko game machine is provided. To provide a pachinko game machine capable of more effectively preventing the adverse effects of static electricity on a main board or the like in a board box disposed near the tank rail since static electricity charged on a ball can be almost completely eliminated. Can be. Also,
Even when there is almost no pachinko ball in the prize ball tank, the static electricity charged on the pachinko ball in the tank rail and the tank rail itself can be eliminated through the third metal plate,
Since the pachinko balls fall from the prize ball tank onto the third metal plate, it is possible to provide a pachinko game machine capable of preventing wear and the like due to the fall of the pachinko balls at the tank rail entrance.

Further, in the pachinko game machine according to claim 7, in the pachinko game machine according to claim 5, a fourth metal plate, which is a conductive member, is mounted in the prize ball passage formed in the prize ball guide. Can be As a result, the static electricity charged on the pachinko ball passing through the tank rail or the prize ball guide is grounded to the wooden outer frame or inner frame using the charging line via the fourth metal plate, so that almost all static electricity can be eliminated. In addition, it is possible to provide a pachinko game machine capable of preventing adverse effects of static electricity on a relay circuit board and the like disposed near the award ball guiding section.

In the pachinko game machine according to the eighth aspect, in the pachinko game machine according to the seventh aspect, since the fourth metal plate is attached to each of a plurality of prize ball paths formed in the prize ball guide, the prize is provided. It is possible to provide a pachinko game machine capable of reliably removing static electricity charged on a pachinko ball passing through the ball guide.

In the pachinko game machine according to the ninth aspect, in the pachinko game machine according to the seventh aspect, between the wooden inner frame and the lower plate receiving portion attached to the inner frame by screws or the like. At least one of the first metal plate, the third metal plate, and the fourth metal plate is grounded by a grounding means to the fifth metal plate sandwiched and fixed. Thereby, the static electricity charged in the pachinko ball flows from the metal plate grounded to the fifth metal plate among the first metal plate, the third metal plate, and the fourth metal plate to the fifth metal plate, and Since the inner plate is grounded by utilizing the closeness of the charging line between the metal plate and the wooden inner frame, it is possible to provide a pachinko game machine capable of almost eliminating static electricity which adversely affects the main board and the like.

According to a tenth aspect of the present invention, in the pachinko game machine according to the ninth aspect,
Since one end of the fifth metal plate covers the bottom surface of the lower plate receiving portion, almost all static electricity charged to the pachinko ball at the lower plate entrance can be eliminated through the fifth metal plate. It is possible to provide a pachinko game machine capable of effectively preventing the adverse effect of static electricity on a control board and the like in a control box provided. Also,
Since the pachinko ball falls from the upper plate onto the fifth metal plate in the lower plate receiving portion, it is possible to provide a pachinko game machine capable of preventing abrasion or the like caused by the falling of the pachinko ball on the bottom surface of the lower plate receiving portion.

Further, in the pachinko game machine according to the eleventh aspect, in the pachinko game machine according to the ninth aspect,
The grounding means connects at least one of the first metal plate, the third metal plate, and the fourth metal plate once to a sixth metal plate for relay, and then connects the fifth metal plate through the sixth metal plate. Each of the first metal plate and the third metal plate is connected to the metal plate and grounded to the wooden inner frame.
The length of the grounding wire drawn from the metal plate and the fourth metal plate can be reduced, and the grounding wire from the sixth metal plate to the fifth metal plate can be formed by one wire. It is possible to provide a pachinko game machine capable of greatly reducing the number of wiring lines for use and improving the working efficiency.

Further, in the pachinko game machine according to the twelfth aspect, in the pachinko game machine according to the fourth or eleventh aspect, since the first metal plate to the sixth metal plate are made of highly conductive metal, When the frame or the inner frame is made of wood, the position of the charging line is very close, and a pachinko game machine can be provided which can further enhance the static elimination effect.

Further, in the pachinko game machine according to the thirteenth aspect, in the pachinko game machine according to the fourth or eleventh aspect, since the first metal plate to the sixth metal plate are made of a corrosion-resistant metal, the corrosion resistance is reduced. It is possible to provide a pachinko game machine capable of constituting a grounding means having excellent characteristics.

[Brief description of the drawings]

FIG. 1 is a rear view showing an entire pachinko game machine according to an embodiment.

FIG. 2 is a perspective view showing a prize ball tank of the pachinko game machine according to the embodiment.

FIG. 3 is a partial sectional view showing a side surface of the pachinko game machine according to the embodiment.

FIG. 4 is a perspective view showing the mounting of the tank rail grounding plate on the tank rail of the pachinko game machine according to the present embodiment.

FIG. 5 is a perspective view showing how each prize ball path ground plate and each delivery gutter are mounted on a mechanism set board of the pachinko game machine according to the embodiment.

FIG. 6 is a perspective view showing the attachment of the lower saucer ground plate and the lower saucer box to the inner frame of the pachinko game machine according to the present embodiment.

FIG. 7 is a perspective view showing a connection state of a grounding relay plate, a tank rail grounding plate, each winning ball passage grounding plate, and a lower receiving tray grounding plate of the pachinko game machine according to the present embodiment.

FIG. 8 is a view showing an experimental result of an electrostatic neutralization effect measurement experiment using a prize ball tank ground plate of the pachinko game machine according to the present embodiment.

9A and 9B are diagrams illustrating an experimental result of an electrostatic charge amount measurement of a tank rail of the pachinko game machine according to the embodiment, and FIG. 9A is a diagram illustrating a charge amount measurement result at a passage entrance of the tank rail; FIG. 6B is a diagram illustrating a measurement result of a charge amount at a passage outlet of the tank rail.

FIG. 10 is a perspective view of the pachinko game machine according to the conventional example with the front frame opened.

FIG. 11 is a perspective view of a main part of the pachinko game machine according to the conventional example, with a main board box removed from a mechanism plate.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pachinko game machine 2 Outer frame 3 Mechanism set board 4 Prize ball tank 6 Tank rail 7 Prize ball guide section 8 Prize ball passage 10 Main board 14 Prize ball tank ground plate 15 Discharge plate 16 Inner frame 17 Mechanical panel 18 Control box 19 Lower part Saucer box 20 relay board 21 grounding relay board 22 tank rail ground plate 23, 24 prize ball path ground plate 25 lower tray ground plate 101 pachinko game machine 105 game board mounting frame 106 mechanism plate 113 main board box 115 bottom plate 116 contact piece 117 Aperture

Claims (13)

[Claims] 1. An outer frame, an inner frame that is openably and closably mounted on the outer frame, and a pachinko ball that is provided on a mechanism panel disposed on a back side of the inner frame and that falls from a replenishing device. A pachinko game machine provided with a prize ball payout system for sequentially paying out the pachinko balls with payout of the prize ball, a conductive member attached to at least one place of the prize ball payout system, A pachinko game machine wherein at least one of the frame and the inner frame is made of wood, and at least one of the wooden outer frame and the inner frame is provided with a grounding means for grounding the conductive member. 2. The prize ball payout system includes a prize ball tank for storing pachinko balls, and the conductive member includes a first metal plate mounted in the prize ball tank. Item 2. A pachinko game machine according to item 1. 3. The pachinko game machine according to claim 2, wherein the outer frame is made of wood, and the first metal plate contacts the outer frame when the inner frame is closed. . 4. The pachinko game machine according to claim 3, wherein the outer frame has a second metal plate attached to a contact portion with the first metal plate. 5. The prize ball dispensing system, wherein the prize ball guide unit guides a pachinko ball to a prize ball case for paying out a predetermined number of pachinko balls, and sends the pachinko ball to the prize ball guide unit from below the prize ball tank. 3. The pachinko game according to claim 2, further comprising: a tank rail forming a passage, wherein the conductive member includes a third metal plate attached inside the passage in contact with the pachinko ball of the tank rail. 4. Machine. 6. The pachinko game machine according to claim 5, wherein the third metal plate is attached at a position near a passage entrance of a tank rail. 7. A prize ball passage for sending a pachinko ball to a prize ball case is formed in the prize ball guide, and the conductive member includes a fourth metal plate mounted in the prize ball passage. The pachinko game machine according to claim 5, wherein: 8. The pachinko game machine according to claim 7, wherein a plurality of the prize ball paths are formed, and the fourth metal plate is mounted in each of the prize ball paths. 9. A lower plate receiving portion fixed to the back side of the inner frame and receiving a prize ball overflowing from the upper plate and guiding the winning ball to the lower plate, wherein the conductive member is provided with the lower plate receiving portion. A fifth metal plate sandwiched between the inner frame and the inner frame; the inner frame is made of wood;
The pachinko game machine according to claim 7, wherein at least one of the metal plate, the third metal plate, and the fourth metal plate is grounded to the fifth metal plate. 10. The apparatus according to claim 9, wherein the fifth metal plate has an extension that covers a bottom surface of the lower dish receiving portion.
A pachinko game machine according to the item. 11. The relay device according to claim 11, wherein at least one of the first metal plate, the third metal plate, and the fourth metal plate and the fifth metal plate are connected to each other by at least one relay sixth connection.
The pachinko game machine according to claim 9, comprising a metal plate. 12. The pachinko game machine according to claim 4, wherein the first to sixth metal plates are formed of a highly conductive metal. 13. The pachinko game machine according to claim 4, wherein the first to sixth metal plates are formed of a corrosion-resistant metal.