JPS6129377A - Pinball game machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Industrial Field of Application The present invention relates to a pinball game machine in which a game is played by bouncing pachinko balls, and in particular, a pinball game machine in which an electronic circuit is used to control the game. It's about machines.

2. Description of the Related Art Many of the latest pinball game machines, such as pachinko game machines, are equipped with electronic circuits for game control, for example, control of opening and opening of winning ball devices, and other controls. Such electronic circuits are generally attached to the center of the back of the pachinko game machine and covered with a metal cover or a shield cover to prevent the electronic circuits from malfunctioning due to noise or the like.

By the way, as is well known, a pachinko game machine is a device that uses a large number of pachinko balls to play the game, but static electricity is generated when the pachinko balls collide with each other or when the pachinko balls collide with the walls of the ball passage. However, pachinko balls are charged with static electricity. It is known that the voltage of this static electricity becomes quite high when there are a large number of pachinko balls, sometimes reaching 1000 volts.

Problems to be Solved by the Invention When this static electricity exceeds a predetermined voltage, it exceeds the charging capacity of the pachinko balls and is discharged to surrounding conductive members. In such a case, if static electricity is discharged to the electronic circuit board, the electronic circuit board will receive high frequency noise etc. due to the static electricity discharge, and the noise signal may malfunction and perform electrical control that should not be performed in the first place. There is sex.

The metal cover or shield cover that covers the control board mentioned above can somewhat alleviate such electrostatic discharge, but it increases the voltage of static electricity attached to the pachinko balls.
When the electricity and pressure are discharged, the cover and the like have a disadvantage in that they cannot sufficiently remove the noise that is applied to the electronic circuit board due to the electrostatic discharge.

Therefore, the object of this invention is to prevent static electricity from being discharged to the electronic/electronic circuit board for game control.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a dynamic member, such as an iron plate or a carbon steel plate, which is provided in contact with the pachinko balls in at least a part of the ball path through which the pachinko balls pass. The conductive resin includes a conductive resin, and a grounding means that is electrically connected to the conductive member and releases the potential of the conductive member.

When pachinko balls, especially a large number of pachinko balls, collide with each other in the working ball passage, or when pachinko balls collide with the wall of the ball passage, static electricity is generated, and the pachinko balls are charged with static electricity. However, when pachinko balls charged with static electricity pass through a ball path, they come into contact with a conductive member provided in at least a portion of the path, and the static electricity charged by the pachinko balls is removed by the conductive member. is released via grounding means. Therefore, the pachinko balls are no longer charged with high-potential static electricity that would otherwise be discharged, and discharge to the electronic circuit board can also be prevented.

, Example Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows a pachinko game [1] which is an embodiment of the present invention.
FIG. 2 is a rear perspective view of 0 viewed from the rear upper left. Also, the second
The figure is a rear view of the pachinko game io. Referring to FIGS. 1 and 2, the overall configuration of a pachinko gaming machine 10, which is an embodiment of the present invention, will be described.

The pachinko gaming machine 10 has an outer frame 11, and the outer frame 11
A front frame 12 is attached to the front side of the frame 12 so as to be openable and closable. That is, the front frame 12 has mounting brackets 13 fixed to the top and bottom of the left end when viewed from the front, and the mounting brackets 13 and the outer frame 1
1 is engaged with the mounting bracket 13 fixed to the front frame 12.
can be opened and closed with respect to the outer frame 11. A game board 14, only a portion of which is visible in the figure, is detachably attached to the front frame 12. Game board 14
As is well known, a guide rail is attached to the front of the machine (not shown in the figure) to guide the pachinko balls around it.
A large number of nails, various winning devices, variable display devices, etc. are arranged on the game board surface surrounded by the guide rails.

Further, in connection with the winning device, a winning hole passing through from the front to the back of the game board 14 is formed, and an out hole is formed in the lower part of the game board 14.

In FIG. 1, at the lower left end of the game board 14, a batting rod 22 for firing pachinko balls and a motor 21 for driving the batting rod 22 are shown. This motor 21 is connected to an operating handle on the front side of the pachinko game machine 10, and is rotated by operating the operating handle.

First, a first mechanism plate 20a is attached to the back side of the game board 14 for guiding pachinko balls coming from the front side of the game board 14 to the back side through the entry holes and out holes. Further, in the upper central part of the first mechanism plate 20a, there is a drum mounting part 1 which is a window for mounting the 11-rotation drum 150.
5 is formed. A rotating drum 150, which is an example of a variable display device, is mounted here. FIG. 1 shows a rotating drum 15
FIG. 2 shows the rotary drum 150 in the state before it is installed.
is installed.

A ball tank 16 is attached to the upper rear surface of the first mechanism plate 20a. This ball tank 16 is for storing pachinko balls supplied from a pachinko ball supply gutter (not shown). The ball tank 16 has a sloped bottom surface, and a prize ball supply gutter 17 is connected to the lowest part of the sloped bottom surface. As shown in FIG. 2, the prize ball supply 117 is also arranged obliquely, and the prize ball supply device 18 is connected to its downstream end, and a second mechanism plate is further provided below it. 20b is provided. These ball tanks16. Prize ball supply gutter 17. The prize ball supply bag @1 day and the second mechanism plate 20b are attached in a stacked manner on the back surface of the first mechanism plate 20a. And these ball tanks 16. The prize ball supply 6117, the prize ball supply device 18, and the second mechanism plate 20b are made of resin.

Further, an electronic circuit board case 19 is attached to the top of the second WSM board 20b, that is, on the back side, and an electronic circuit board for controlling the game of the baton machine 10 is provided in the electronic circuit board case 19.

The inside of the second mechanism plate 20b is partitioned with many partitions to guide a large amount of pachinko balls to a predetermined location, and a prize ball discharge passage 201. which guides pachinko balls discharged from the prize ball supply device 18. There are connecting passages 202 and 203 that lead pachinko balls to a prize ball payout port (not shown) and a surplus payout port (not shown) on the front side of the pachinko game machine 10, a vertical passage 204 that allows pachinko balls to fall vertically, etc. It is formed. Further, a prize ball sensing plate 205 and a winning ball processing device 206 are provided.

Next, a large number of pachinko balls are supplied and stored in the arranged ball tank 16 as described above.

Further, the pachinko balls in the ball tank 16 are guided through a prize ball supply gutter 17, and then to a prize ball supply device 18, and then to a second mechanism plate 20b/
It flows down. In this case, the pachinko balls are charged with static electricity. That is, when pachinko balls are supplied to the ball tank 16, the pachinko balls collide with the bottom or wall of the ball tank 16, or the supplied pachinko balls collide with each other.
Pachinko balls are charged with static electricity. In addition, the second mechanism plate 20
When pachinko balls pass through a etc., especially the vertical passage 204
When a pachinko ball falls and collides with the resin wall or bottom underneath, static electricity is generated and the pachinko ball becomes charged with static electricity.

Therefore, in this embodiment, in order to remove static electricity from a large amount of pachinko balls that are charged with static electricity, we use the wall surface of the ball tank 16 and the vertical passage 20 where the pachinko balls accumulate.
An iron plate 31 and an L-shaped iron plate 41, each of which is a conductive member, are attached to the wall of 4. One end of a lead wire 32 is connected to the iron plate 31, and the other end of this lead wire 32 is connected to the outer frame 11 via a wood screw 33.

Further, one end of a lead wire 42 is connected to the L-shaped iron plate 41 attached to the vertical passage 204, and the other end of this lead wire 42 is connected to the mounting bracket 13. This is a feature of this embodiment.

Next, with reference to FIG. 3, the iron plate 31 provided in the ball tank 16 will be explained in detail.

Holes 162, 163 and 164 are bored at both left and right ends of the rear inner surface 161 of the ball tank 16, which is a rectangular housing with an open top. The iron plate 31 is a longitudinal member extending in the horizontal direction, and both ends thereof are bent rearward at approximately 90 degrees, and the bent ends 312, 313, and 314
are inserted into the holes 162, 163 and 164 respectively, the iron plate 31 is attached, and the holes 162, 163 and 1 are inserted.
64 to the rear of the ball tank 16
．． 3'13 and 314 are bent 90 degrees in opposite directions and fixed. Therefore, screws, adhesives, etc. are not required to attach the iron plate 31 to the ball tank 16. A convex portion 311 is formed at one end of the iron plate 31, and one end of a lead wire 32 is attached to this convex portion 311 with a screw 321.

Further, the other end 323 of the lead wire 32 is connected to the outer frame 11 with the wood screw 33 as described above. Generally, even if it is a wooden frame such as outer frame 11, the frame contains some moisture,
Moreover, since its volume is large, it has the effect of dissipating the potential transmitted from the iron plate 31 to the lead wire 32. Therefore, a large number of pachinko balls charged with static electricity stored in the ball tank 16 come into contact with the iron plate 31 or with pachinko balls that are in contact with the iron plate 31, and the static electricity charged by each pachinko ball is transferred to the iron plate 31 and the lead wire 32. It will escape to the outer frame 11 via.

The other end 323 of the lead wire 32 is connected to the outer frame 1.
, but also the mounting bracket 13, the glass door frame (not shown), and the metal frame provided around the glass door frame (not shown)
may be connected to. Alternatively, the other end 32 of the lead wire 32
3 may be connected to a metal plate or the like of an island stand on which the pachinko game machine 10 is placed.

Next, referring to FIGS. 4 and 5, the vertical passage 204
The L-shaped iron plate 41 provided below will be explained. L
The shaped iron plate 41 has screws 411 on the inner surface of the vertical passage 204.
It is installed in [Shaped iron plate 41, as its name suggests, has an L-shaped cross section (see Figure 5).
The pachinko balls falling down the vertical passage 204 collide with the horizontally bent portion 412 of the pachinko ball. Therefore, when the falling pachinko balls charged with static electricity collide with the horizontally bent portion 412 of the L-shaped iron plate 41, the static electricity is removed by the bent iron plate 41. . In addition, the pachinko balls are placed in the vertical passage 20.
4. Since the ball does not directly collide with the prize ball buffer gutter 21 made of resin below, static electricity will not be generated in that case.

The L-shaped iron plate 41 is also similar to the iron plate 31 explained in FIG.
It is grounded through a lead wire 42 so that the potential is released. That is, the L-shaped iron plate 41 is electrically connected to the mounting bracket 13 by the lead wire 42 . In addition, in this case as well, in addition to connecting the lead wire 42 and the mounting bracket 13', as in the case described above, the lead wire 42 is
It may be connected to other conductive parts, such as a metal frame, a glass tile frame, the outer frame 11 containing moisture, or a conductive part of an island stand.

FIG. 6 shows another embodiment of the present invention in which a conductive member for removing static electricity is attached below the communication passageway 62 when the vertical passageway 204 is replaced with an inclined communication passageway 62. FIG. 2 is a perspective view depicting an embodiment. In this embodiment, a communication passage 62 is provided, and pachinko balls flowing from above roll into the communication port 61. The rolled pachinko balls flow down through the communication passage 62. A prize ball sensing plate 64 is attached below this communication passage 62. The prize ball sensing plate 64 is made of an iron plate, and a lead wire 65 is connected to it by a screw 66 and electrically grounded. Therefore, the static electricity of the pachinko balls that have fallen through the communication path 62 is removed by the prize ball sensing plate 64, and the falling of the pachinko balls is detected by the prize ball sensing plate 64. Furthermore, these pachinko balls flow into the prize ball buffer gutter 67. In addition, this prize ball sensing plate 64 is
As shown in the figure, both ends thereof are bent at 90°, and the bent portions are adapted to engage with the communicating passages of the resin.
No screws or adhesives are required for its installation.

In the description of the above embodiment, the iron plate 31, the L-shaped iron plate 41, and the prize ball sensing plate 64 are all made of iron plates, but they may be made of other conductive materials, such as copper. Further, since it is known that carbon resin containing carbon or carbon fiber has electrical conductivity, such materials may be used in place of the above-mentioned iron plate 31 and the like.

Further, when the conductive member is made of resin containing carbon, the ball tank 16 and the second mechanism plate 20b and the conductive member may be formed integrally.

Roughly speaking, in the above description, the conductive member is provided in a part of the ball path, but the entire ball path may be made of a conductive member to remove static electricity from the pachinko balls.

In this way, in this embodiment, the static electricity charged on the pachinko balls is quickly released by the iron plate 31 or the rectangular iron plate 41, so the potential of the static electricity charged on the pachinko balls 31 increases and is discharged to the electronic circuit board, etc. This can be prevented.

Effect of invention 1 or more J:
According to this invention, in a pinball game machine that includes an electronic circuit used for game control, static electricity charged by pachinko balls, etc. is quickly dissipated, preventing static electricity from being discharged to the electronic circuit, and preventing the electronic circuit from malfunctioning. Does not occur. Therefore, it is possible to provide a preferable pinball game machine that is easy to handle and does not cause any disadvantage to business for the management of the game hall where the pinball game machine is installed.

[Brief explanation of drawings]

FIG. 1 is a rear perspective view of a preferred embodiment of the invention. FIG. 2 is a rear view of the embodiment shown in FIG. FIG. 3 is a diagram for explaining an iron plate 31, which is an example of a conductive member attached to the ball tank 16. 4 and 5 show the L-shaped iron plate 4 installed in the vertical passage 204.
1 is a diagram for explaining FIG. FIG. 6 is a perspective view showing another example of the conductive member attached to the lower part of the pachinko game machine. In the figure, 10 is a pachinko game machine, 11 is an outer frame, and 16
is a ball tank, 20a and 20b are mechanism plates including ball passages,
31 is an iron plate which is an example of a conductive member, 41 is an L-shaped iron plate which is also an example of a conductive member, 32°42.65 is a lead wire, 1
Reference numeral 9 indicates an electronic circuit board case in which an electronic circuit board is built-in. Figure 4 Figure 5

Claims (15)

[Claims] (1) In a pinball game machine for playing games by hitting pachinko balls, the machine includes a ball path that guides pachinko balls and an electronic circuit used for game control, wherein at least a portion of the ball path is in contact with the pachinko balls. 1. A pinball game machine, comprising: a conductive member provided as shown in FIG. (2) The pinball game machine according to claim 1, wherein the ball passage is made of resin. (3) The pinball game machine according to claim 2, wherein the ball passage is provided on the back side of the pinball game machine. (4) The pinball game machine according to claim 3, wherein the ball passage is a passage through which a large number of pachinko balls pass. (5) The pinball game machine according to claim 4, wherein the ball passage has a ball storage section in which the pachinko balls are temporarily stored. (6) The ball path includes a vertical path in which the pachinko balls fall vertically downward, and the conductive member is provided so as to receive the pachinko balls falling vertically downward along the vertical path. A pinball game machine according to claim 4 or 5, wherein: (7) The pinball game machine according to any one of claims 1 to 6, wherein the conductive member is an iron plate. (8) The pinball game machine according to claim 1, wherein the conductive member is a conductive resin containing carbon. (9) The pinball game machine according to any one of claims 2 to 6, wherein the conductive member is a conductive resin containing carbon. (10) The pinball game machine according to claim 9, wherein the conductive member is formed integrally with the ball passage. (11) The pinball game according to any one of claims 1 to 10, wherein the grounding means is a lead wire whose one end is connected to the conductive member and whose other end is grounded. Machine. (12) The other end of the lead wire is connected to a metal part near the outer periphery of the pinball game machine.
The pinball game machine described in Section 1. (13) The pinball game machine according to claim 11, wherein the other end of the lead wire is connected to the wooden frame of the pinball game machine. (14) The pinball game machine according to claim 10, wherein the other end of the lead wire is connected to a glass door frame of the pinball game machine. (15) The pinball game machine according to claim 11, wherein the other end of the lead wire is connected to a metal frame provided on the outer periphery of the glass door frame of the pinball game machine.