JP4771382B2 - Control board box, molding die, and injection molding method - Google Patents

Description

  The present invention belongs to the technical field of gaming machines such as a ball game machine and a revolving type gaming machine, and more specifically, a control board of the gaming machine, a control board box that accommodates the control board, and a molding for molding the control board box The present invention relates to a mold and an injection molding method.

2. Description of the Related Art A ball game machine such as a pachinko machine is provided with a control board (sometimes referred to as a control device) for making a jackpot determination or controlling the opening / closing of a big prize device. The essence of this control board is a microcomputer, and its operation follows a program stored in the ROM.
In other words, if the program is changed, it is possible to arbitrarily operate the generation of the jackpot and the opening of the prize winning device, and it is not without any unreasonable gain by modifying the program. The modification of the program is actually performed by exchanging a ROM for storing the modified program or a one-chip microcomputer including such a ROM with a regular one. In addition, there have also been actions such as additionally mounting unauthorized parts (IC or the like) on the control board or modifying the wiring. In addition, such illegal ROM replacement, addition of parts, modification of wiring, etc. are not limited to a ball game machine, and have also been performed in a revolving game machine (slot machine) or the like.

In order to prevent such unauthorized modification of the control board, various measures have been taken, such as a structure in which a trace remains when the control board box that accommodates the control board is opened. Recently, a control board box for housing the control board is made of a transparent plastic so that it can be visually checked whether there is a ROM exchange, part addition, wiring alteration, or the like.
Japanese Patent Application No. 10-309360

  However, the connector (usually a plurality) attached to the control board to connect the control board and each part of the gaming machine must be exposed to the outside, and accordingly the wiring pattern around the connector (for example, the connector) If this is exposed, there is a risk that the above-described unauthorized modification may be performed using this portion (without opening the control board box).

  For this reason, there has been a demand for a structure in which only the connector is exposed to the outside without exposing the wiring pattern. The present invention aims to meet such a demand. In addition, in order to expose only the connector to the outside without exposing the wiring pattern, a hole having a shape along the outer peripheral shape of the connector is provided in a part of the control board box, and only the connector is exposed from the hole. A structure that does not expose the surroundings is conceivable, but in that case, a control board box having holes for connector of the number, shape, and arrangement according to the number, shape, and arrangement of connectors that differ depending on the type of gaming machine, that is, a game A control board box of a type corresponding to the machine type is required. However, it is not reasonable to manufacture various types of control board boxes according to the model of the gaming machine. The present invention also aims to address this problem.

The gaming machine according to claim 1 for solving the above-mentioned problem is a gaming machine comprising an upper box part, a lower box part, and a connector guide, and comprising a control board box that houses a control board. A wiring pattern is printed on the board, a rectangular cylindrical connector passage hole is provided in the upper box portion, and the connector guide follows the outer peripheral shape of each of the plurality of connectors attached to the control board. A plurality of connector holes having different shapes, the control board is placed in the lower box portion and fixed, and the connector guides are placed on the control board in a state where the plurality of connectors are passed through the plurality of connector holes. By placing the upper box portion on the lower box portion, the plurality of connectors are exposed to the connector passage hole side through the corresponding connector holes,
The connector guide is configured such that the connector is exposed to the outside and the wiring pattern is not exposed, and movement along the surface of the control board is restricted by the connector penetrating the connector hole, The lower end portion of the connector passage hole is aligned with the upper edge portion of the protruding portion formed on the outer periphery of the connector guide, and by pressing the upper edge portion, the upper box portion and the lower box portion Movement along the direction perpendicular to the surface of the control board is restricted,
In the connector placement region, which is the front side of the control board and is not covered by the upper box part inside the connector passage hole, the wiring pattern is not provided, and the back side of the control board is The wiring pattern is provided in the back surface area of the connector arrangement area, and the connector and the wiring pattern are connected in the back area of the connector arrangement area .
In addition, the gaming machine according to claim 2 includes a connecting means for connecting the upper box part and the lower box part in a joined state, and the connecting means, once connected, unless the connecting means is destroyed. The upper box part and the lower box part cannot be separated from each other, and the opening of the control board box can be discriminated based on the trace of destruction .

  A control board box according to another invention 1 for solving the above-mentioned problems is a control board box for accommodating a control board of a gaming machine, wherein a connector hole having a shape along the outer peripheral shape of the connector attached to the control board is provided. A connector guide, a first box member and a second box member to be joined with the concave portions facing each other, and a connecting means for connecting the first and second box members in a joined state. The control board is accommodated between the first and second box members with the connector guide having the connector penetrating through a hole exposed to the outside and sandwiched between the first and second box members. The first and second box members are closed by being connected by the connecting means.

  In the control board box, the connector of the control board is passed through the connector hole of the connector guide, the connector guide is exposed to the outside, and the first and second box members are sandwiched between the first and second box members. The control board is accommodated between the box members, and the first and second box members are joined and connected by the connecting means.

  Almost the entire surface of the control board is covered with the control board box, but only the connector is exposed to the outside through the connector hole. Moreover, since the connector hole has a shape along the outer peripheral shape of the connector, only the connector is exposed and the periphery thereof is not exposed. Therefore, unauthorized modification is not performed without opening the control board box using the wiring pattern around the connector.

  In order to expose the connector to the outside while sandwiching the connector guide between the first and second box members, for example, one side of the first and second box members is passed through the mating connector connected to the connector of the control board. A connector passage hole may be provided. In this way, the mating connector can be connected to the connector through the connector passage hole. Thereby, electrical connection between the control board and the outside can be ensured.

  Alternatively, one of the first and second box members is provided with a holding hole that aligns with the outer periphery of the connector guide, and the connector guide is a portion that is pressed by the peripheral edge of the holding hole (protrusion, step, taper, etc.) If the connector hole is provided, the connector hole, that is, the connector can be exposed to the outside of the control board box, and there is no problem in connection with the counterpart connector.

  By the way, the number (number of inputs / outputs) of wires connected to the control board differs depending on the type or model of the game machine such as a ball ball game machine or a revolving game machine, and the shape, number, or arrangement of connectors differs accordingly. However, according to the control board box of the first aspect, the shape of the first and second box members can be changed by using a connector guide that matches the shape, number, or arrangement of the connector that changes according to the model. Without being able to handle various game machines or models. Therefore, it is possible to save human resources and physical resources related to the design and manufacture of the control board box.

  The above problem can also be solved by a control board box of another invention 2. A control board box according to another aspect of the invention includes first and second box members joined to each other, and connecting means for connecting the first and second box members in a joined state, and is joined to the control board box. In the control board box for accommodating the control board of the gaming machine between the first and second box members, the outer peripheral shape of the connector attached to one of the first and second box members is attached to the control board. A connector hole having a different shape is provided.

  This control board box connects the first and second box members joined by accommodating the control board by passing the connector of the control board through the connector hole provided in the first or second box member. Are connected in the joined state. Then, the control board box is closed in a state where the control board is accommodated therein, but only the connector is exposed to the outside from the connector hole, so that the counterpart connector can be connected to the connector. Thereby, electrical connection between the control board and the outside can be ensured.

  Moreover, since the connector hole has a shape along the outer peripheral shape of the connector, only the connector is exposed and the periphery thereof is not exposed. Therefore, unauthorized modification is not performed without opening the control board box using the wiring pattern around the connector.

In order to mold a box member having a connector hole among the two box members constituting the control board box, it is preferable to use the molding die of the other invention 3 and perform injection molding by the method of the other invention 4.
The molding die of another invention 3 is the first or second box member of the control board box for accommodating the control board of the gaming machine between the first and second box members joined to each other, In a molding die for molding a perforated box member having a connector hole having a shape along the outer peripheral shape of a connector attached to a control board, a through portion that penetrates a cavity when the die is closed to form the connector hole The connector hole type including the inner hole type is configured to be detachable to one of the inner surface type that matches the shape of the inner surface side of the perforated box member and the outer surface type that matches the shape of the outer surface side of the perforated box member. To do.

  According to another injection molding method of the invention 4, when the perforated box member of the other invention 3 is injection-molded by using the molding die of the other invention 3, the shape, number or arrangement of the connector holes are selected. The connector hole mold to be prepared is mounted on one of the inner surface mold or the outer surface mold and injection molded.

  In the molding die of the other invention 3, the connector hole mold including the penetrating portion for forming the connector hole is detachable to one of the inner surface mold and the outer surface mold, so that it depends on the type or model of the gaming machine as described above. When the shape, number, or arrangement of the connectors are different, a connector hole type including a through portion corresponding to the connector is attached to one of the inner surface type and the outer surface type. And the perforated box member which has a connector hole by injection molding like the other invention 4 using the molding die is shape | molded.

  As a result, it is not necessary to manufacture a molding die according to the shape, number, or arrangement of the connector that changes according to the model, etc., and it is only necessary to manufacture a connector hole mold according to the shape of the connector. It is possible to save human resources and material resources related to the design and manufacture of the mold, and consequently save human resources and physical resources related to the design and manufacture of the control board box.

  A perforated box member injection-molded by the injection molding method of the other invention 4, and a counterpart forming a space for accommodating a control board of a gaming machine between the perforated box member and the perforated box member A control board box comprising a box member and a connecting means for connecting the perforated box member and the counterpart box member in a joined state, that is, a control board box of another invention 5 is a perforated box. The perforated box member and the mating box member, which are joined by accommodating the control board through the connector of the control board through the connector hole provided in the member, are connected in a joined state by the connecting means. Then, the control board box is closed in a state where the control board is accommodated therein, but only the connector is exposed to the outside from the connector hole, so that the counterpart connector can be connected to the connector. Thereby, electrical connection between the control board and the outside can be ensured.

  Moreover, since the connector hole has a shape along the outer peripheral shape of the connector, only the connector is exposed and the periphery thereof is not exposed. Therefore, unauthorized modification is not performed without opening the control board box using the wiring pattern around the connector.

  In addition, as described above, it is not necessary to manufacture a molding die according to the shape, number, or arrangement of connectors that change depending on the model and the like, and only the connector hole shape needs to be manufactured according to the shape of the connector. Therefore, it is possible to save human resources and physical resources related to the design and manufacture of the molding die, and further save human resources and physical resources related to the design and manufacture of the control board box.

  Other inventions 1, 2, or 5 attempt to solve the above problem by devising the shape of the control board box, but can also be solved by devising the wiring pattern of the control board. Therefore, the control board of the gaming machine according to another aspect of the invention is characterized in that a part of one surface is a connector arrangement area in which only a connector is attached without providing a wiring pattern.

  When one side of the control board, for example, a part of the surface is used as a connector arrangement area, the one side of the control board box covers the surface side of the control board excluding the connector arrangement area, and the other box member of the control board box By completely covering the back side of the control board and connecting both box members in a joined state by the connecting means, only the connector arrangement region is exposed to the outside. However, since no wiring pattern is provided here and only the connector is attached, this is substantially the same as exposing only the connector. Therefore, unauthorized modification is not performed without opening the control board box using the wiring pattern around the connector.

  In addition, it is not necessary to provide the control board box with parts or holes corresponding to the connector guides in the control board box of the other invention 1 or the connector holes in the control board box of the other invention 2 or 5, and the model of the gaming machine, etc. Therefore, it is not necessary to change the structure and shape of the control board box in accordance with the shape, number or arrangement of connectors that change according to the above.

Almost the entire area of the front and back sides of the control board is covered with the control board box, but only the plurality of connectors attached to the control board are exposed to the outside through the connector holes that penetrate each. Moreover, since the connector hole has a shape along the outer peripheral shape of the connector, only the connector is exposed and the periphery thereof is not exposed. Therefore, unauthorized modification is not performed without opening the control board box using the wiring pattern around the connector.

In addition, by not providing a wiring pattern in the connector arrangement region, it is possible to more surely prevent unauthorized modification such as changing a part of the wiring pattern or replacing or adding some parts.

  Next, several embodiments of the present invention will be described in detail with reference to the drawings.

First, an embodiment of the invention according to claim 1 will be described as a first embodiment. As shown in FIG. 1, a jackpot determination is made or a control of opening / closing of a variable winning device is triggered by winning a start winning device of a pachinko machine (the pachinko machine main body follows a publicly known technique, illustration and description thereof is omitted). Although the detailed illustration is omitted, a wiring pattern is printed on the control board 10 that executes the above and the like, and various electric components such as a CPU, a ROM, and a RAM, a resistor, a capacitor, and the like are mounted on the outside (pachinko machine). A plurality of connectors 12 for connecting a control board 10 and a sensor installed in each part or a device to be controlled) and the like are attached. Further, a corner electrode 13 is provided on the back surface at one corner of the control board 10. The corner electrode 13 is connected to a ground wiring (not shown) for grounding which is a part of the wiring pattern, and the ground wiring printed wiring is connected to a grounding terminal (not shown) of the connector 12. It is connected.
The control board box 14 that accommodates the control board 10 is made of transparent polycarbonate, and includes an upper box portion 16 that corresponds to the first box member, a lower box portion 18 that corresponds to the second box member, and the connector guide 20. Configured. When the control board box 14 is attached to the pachinko machine, the lower box portion 18 is on the main body side of the pachinko machine.
The upper box portion 16 is provided with a rectangular cylindrical connector passage hole 22, and the lower end portion 24 of the connector passage hole 22 and the upper edge portion 26 of the connector guide 20 are aligned with each other. Further, the upper box portion 16 is provided with a number of vent holes 28. Further, a plate-like screw passage 30 and a cylindrical screw passage 32 that are part of the connecting means are provided on the side surface of the upper box portion 16. Each screw passage 32 is connected to the main body 36 of the upper box portion 16 via a pair of arms 34 having a thin structure. These arms 34 can be broken relatively easily when a couple of tools such as a general screwdriver is inserted between the screw passage 32 and the main body 36 to apply a couple.

  As shown in FIGS. 1 and 2, a mounting pin 40 for mounting the control board box 14 on the main body of the pachinko machine is erected on the side surface 38 of the lower box portion 18, and a screw receiver 42 corresponding to the screw thread 30. And screw receivers 44 corresponding to the screw passages 32 are provided. The screw receiver 42 and the screw receiver 44 constitute a connecting means in cooperation with the screw passage 30 and the screw passage 32. Moreover, as shown in FIGS. 1-3, the stainless plate 46 which functions as a relay means inside the side surface 38, and also becomes a reinforcement means which reinforces the lower box part 18 (especially side surface 38) is affixed.

  As shown in FIGS. 2 and 3, the stainless steel plate 46 is provided with a tongue portion 48 extending along the bottom 18 a of the lower box portion 18, and the tongue portion 48 includes the bottom 18 a, the film press 50, and the like. It is pinched by. As shown in FIG. 2, the stainless steel plate 46 is provided with perforated claws 49 corresponding to the four corners of the lower box portion 18. As shown in FIGS. 2 and 4, the lower box portion 18 is provided with screw receivers 51 at positions corresponding to the claws 49.

  As shown in FIG. 2, the film pusher 50 has a shape substantially conforming to the inner peripheral shape of the lower box portion 18 except that the portion overlapping the tongue portion 48 is convex, and is substantially perpendicular to the bottom 18a. The outer peripheral portion 52 and the inner peripheral portion 54 that is substantially parallel to the bottom 18a. A window-like hole 56 is formed inside the inner peripheral portion 54. A mounting piece 58 is provided on the outer peripheral portion 52, and is attached to the bottom 18 a of the lower box portion 18 with a screw 60 that passes through the mounting piece 58. As shown in FIGS. 2, 3, and 5, a conductive film 62 is affixed to the inside of the bottom 18 a of the lower box portion 18, and the peripheral portion of the conductive film 62 is a film press 50. It is sandwiched between the bottom 18a. In the present embodiment, the conductive film 62 is stuck by being pressed against the bottom 18a by the film press 50, but may be bonded as long as sufficient anti-electromagnetic properties and anti-static properties can be secured.

  This conductive film 62 is a transparent induction film (Toray Co., Ltd., trade name High Beam 125L-CH22) obtained by depositing indium tin oxide (ITO) or the like on the surface of a polyester film by a sputtering method. The surface resistance value according to C2318 is 300Ω / □, JIS. The light transmittance by K6714 is 84 to 88 and almost transparent.

  As shown in FIG. 1, a plurality of connector holes 20 a to 20 h are formed at the bottom of the connector guide 20 so as to match the plurality of connectors 12. As shown in FIG. It penetrates through the corresponding connector holes 20a to 20h and is exposed to the connector passage hole 22 side.

  In order to accommodate the control board 10 in the control board box 14 having such a structure, first, as shown in FIG. 1, the control board 10 is put into the lower box portion 18 and screw holes provided at the four corners of the control board 10. Screws 70 are passed through (not shown). Since these screws 70 penetrate the claws 49 of the stainless steel plate 46 and reach the screw receiver 51, the screws 70 are screwed to the screw receiver 51 while tapping. Thus, the control board 10 is fixed to the lower box portion 18. At this time, the conductive film 62 is connected to the corner electrode 13 of the control board 10 through the stainless plate 46.

  Next, the connector 12 is passed through the connector holes 20 a to 20 h of the connector guide 20, the connector guide 20 is placed on the control board 10, and then the upper box portion 16 is placed on the lower box portion 18. Then, the screw passage 30 and the screw receptacle 42, the screw passage 32 and the screw receptacle 44 are aligned, and the four screw passages 30 and the screw receptacle 42 are screwed together while tapping with the screws 71, and one set per side surface 38 ( A total of two sets of screw passages 32 and screw receivers 44 are screwed together with special screws 73 while being tapped. As a result, the control board 10 is accommodated and the control board box 14 is closed. When the control board box 14 is closed in this way, the connector guide 20 is restricted from moving along the surface of the control board 10 by the connector 12 penetrating the connector holes 20a to 20h, and the upper box portion 16 Since the movement along the direction perpendicular to the surface of the control board 10 is restricted by the lower box portion 18 and the lower box portion 18, the connector guide 20 cannot be removed. Input / output between the control board 10 and the outside is performed through cables (not shown) connected to the connector 12 through a connector passage hole 22 and a counterpart connector (not shown).

  The head of this special screw 73 (for example, minus one way (trade name) manufactured by Nitto Seiko Co., Ltd.) has a shape of a tool groove in which a general tool such as a screwdriver works in the tightening direction but does not work in the loosening direction. have. Therefore, once screwed, for example, the upper box portion 16 and the lower box portion 18 cannot be separated unless the screw passage 32 is broken. Therefore, whether or not the control board box 14 has been opened and closed can be determined based on the presence or absence of such traces of destruction.

  As described above, in the control board box 14, since the transparent conductive film 62 is stuck on the bottom 18a of the lower box portion 18, the conductive film 62 absorbs electromagnetic waves, so that the shielding property is secured. Since static electricity is discharged by air discharge from the conductive film 62, it is possible to prevent the operation of the control board 10 from being troubled by excessively accumulated static electricity.

  In addition, since the conductive film 62 is connected to the grounding terminal of the control board 10 through the stainless plate 46 and the corner electrode 13, the conductive film 62 can be grounded through the grounding terminal, and accumulation of static electricity is prevented. The effect can be further improved. The stainless plate 46 also serves as a reinforcing means for reinforcing the lower box portion 18 (particularly the side surface 38). Like the stainless steel plate 46, in order for one member to serve as both the relay means and the reinforcing means, a material having electrical conductivity (relay means) and appropriate strength (reinforcing means) may be used. If the relay means and the reinforcement means are provided separately, a conductive material such as metal or conductive resin may be used as the relay means, and the reinforcement means may be a material having a strength as required. .

And since the electroconductive film 62 is stuck on the bottom 18a of the lower box part 18 which faces the main body of the pachinko machine, the control board box 14 is charged by the static electricity generated by the game ball moving in the passage of the pachinko machine. It can be prevented efficiently. Further, in this control board box 14, the connector guide 20 is used and the connector passage hole 22 is provided in the upper box portion 16, so that only the connector 12 is exposed to the outside, and the wiring pattern is not exposed at all. Therefore, unauthorized modification such as changing a part of the wiring pattern or exchanging or adding a part of parts can be surely prevented.
(Modification 1) FIG. 6 shows a modification of the connector guide. The connector guide 80 is different from the connector guide of the first embodiment in the shape, number and arrangement of the connector holes 80a to 80e. This is because the number of wires connected to the control board (number of inputs and outputs) differs depending on the model of the ball game machine, and the shape, number, or arrangement of the connectors differ accordingly. By using connector guides that match the shape, number, or arrangement of connectors that change depending on the model, various models can be handled without changing the shape of the upper and lower box members of the control board box. Therefore, it is possible to save human resources and physical resources related to the design and manufacture of the control board box.

  Next, an embodiment of the invention according to claim 2 or 5 will be described as a second embodiment. The control board box 104 of this embodiment accommodates the control board of the pachinko machine, like the control board box 14 of the first embodiment. Since the structure of the control board 10a is the same as that described in the first embodiment, the description thereof is omitted.

  As shown in FIGS. 7, 8, and 10, the control board box 104 of this embodiment is made of transparent polycarbonate and corresponds to the upper box portion 106 corresponding to the first box member and the second box member. The lower box portion 108 is configured. When the control board box 104 is attached to the pachinko machine, the lower box part 108 is on the main body side of the pachinko machine. The upper box portion 106 is provided with a large number of vent holes 28 (see FIG. 13) on the side surface 110 and the like, as in the first embodiment.

  As shown in FIGS. 7, 8, and 9, four cylindrical screws 132 serving as a part of the connecting means are provided on both side surfaces 110 of the upper box portion 106. Each screw 132 is connected to the main body 136 of the upper box portion 106 through an arm 134 having a thin structure. As shown in FIGS. 7 and 8, also in the recessed portion 150, a screw passage 152 similar to the screw passage 132 is connected to the main body 136 via an arm 154 having a thin structure. These arms 134 and 154 can be broken relatively easily when a couple of tools such as a general screwdriver is inserted between the screw passages 132 and 152 and the main body 136 to apply a couple.

  Further, a portion of the upper box portion 106 that is opposite to the recessed portion 150 is a flat portion 158 that is one step lower than the ceiling portion 156 of the main body 136, and a plurality of connector holes 160a to 160d are provided therein. ing. These connector holes 160a to 160d have a shape along the outer peripheral shape of the connector (not shown) of the control board 10a, and are provided at positions corresponding to the connectors.

  As shown in FIGS. 7 and 8, mounting pins 140 for mounting the control board box 104 to the main body of the pachinko machine are erected on the side surface 138 of the lower box portion 108, and four positions corresponding to the screw holes 132 are provided. A receiving member 146 having a screw receiver 144 is provided. In addition, the recessed portion 151 of the lower box portion 108 is provided with a receiving member 155 having four screw receivers 153 corresponding to the screw passages 152. The screw receiver 144 and the screw receiver 153 constitute a connecting means in cooperation with the screw passage 132 and the screw passage 152.

  As shown in FIG. 7 and FIG. 10, the first wall portion 139 arranged on the left and right of the receiving member 155 and continuing to the side surface 138 is provided with a convex portion 141, and as shown in FIG. 141 continues the upper edge of the side surface 138 to the receiving member 146. As shown in FIG. 10, an engagement recess 143 is formed by the upper portion 139 a of the first wall portion 139 and the projection 141.

  Further, as shown in FIGS. 7 and 10, a second wall portion 145 is provided inside the first wall portion 139. As shown in FIG. 10, the second wall portion 145 is connected to the bottom 108 a of the lower box portion 108. On the other hand, as shown in FIGS. 7 and 10, the first wall 111 connected to the side surface 110 is provided on the left and right sides of the recessed portion 150 of the upper box portion 106, and the second wall 113 is provided on the inner side thereof. It is arranged. As shown in FIG. 10, the second wall 113 is connected to the ceiling 156.

  As shown in FIG. 10, the inner surface of the first wall portion 111 of the upper box portion 106 is in close contact with the outer surface of the upper portion 139 a of the first wall portion 139 of the lower box portion 108, and the lower end portion thereof is the engagement recess 143. Is engaged. The inner surface of the second wall portion 113 of the upper box portion 106 is in close contact with the outer surface of the second wall portion 145 of the lower box portion 108. As described above, the first wall 111 and the first wall 139 overlap each other, and the second wall 113 and the second wall 145 overlap each other, so that the first wall 111 and 139 and the second wall 145 overlap each other. A sub space 147 is formed between the second wall portions 113 and 145, and the inside of the second wall portions 113 and 145 serves as a main space 149 for accommodating the control board 10a.

  As shown in FIG. 10, screw receivers 51a are provided on the bottom 108a of the lower box portion 108 (only one is shown, but four in each of the four corners). The control board 10a is fixed by screws 70 to be attached. The bottom 108 a is also provided with a screw receiver 59 for the film press 50 a, and the film press 50 a is attached by a screw 60 a that is screwed to the screw receiver 59. The film press 50a is a member similar to the film press 50 of the first embodiment, and the peripheral portion of the conductive film 62a attached to the bottom 108a is sandwiched between the film press 50a and the bottom 108a.

  Further, in the main space 149, a stainless plate 46 a that functions as a relay unit and serves as a reinforcing unit that reinforces the lower box portion 108 (particularly the side surface 138) is the same as that described in the first embodiment. It is affixed to. And like Example 1, the conductive film 62a is connected with the corner electrode (not shown) of the control board 10a via the stainless plate 46a.

  In order to accommodate the control board 10a in the control board box 104, first, the upper box part 106 and the lower box part 108 are separated, and the control board 10a is put in the lower box part 108, as in the case of the first embodiment. Similarly, it fixes to the lower box part 108 with the screw | thread 70 which penetrates the screw hole (illustration omitted) provided in the four corners of the control board 10a. At this time, the conductive film 62a affixed in the lower box portion 108 is connected to the corner electrode (not shown) of the control board 10a via the stainless steel plate 46a, as in the case of the first embodiment. .

  Next, the upper box portion 106 is placed on the lower box portion 108 while the connectors of the control board 10a are passed through the corresponding connector holes 160a to 160d. Then, the screw passage 132 and the screw receiver 144, the screw passage 152 and the screw receiver 153 are aligned, and one of the four screw passages 132 on the both side surfaces 110 (for example, corresponding to the number 1 described on the ceiling portion 156). And screw receiver 144 are tapped with special screw 73 while tapping, and one of four screw passages 152 (for example, the screw passage corresponding to the number 1 written on ceiling portion 156). 152) and the screw receiver 153 are screwed together while tapping with the special screw 73. As a result, the control board 10a is accommodated and the control board box 104 is closed.

  As described in the first embodiment, the head of the special screw 73 is effective in a tightening direction, such as a general screwdriver, but not in a loosening direction. Accordingly, once screwed, the upper box portion 106 and the lower box portion 108 cannot be separated unless the screw passages 132 and 152 are broken, for example. Therefore, it is possible to determine whether or not the control board box 104 has been opened / closed based on the presence or absence of such traces of destruction.

  Thus, when the control board box 104 is closed, the control board 10a is exposed to the outside through the connector holes 160a to 160d, and the other parts are not exposed at all. . Therefore, unauthorized modification such as changing a part of the wiring pattern or exchanging or adding a part of parts can be surely prevented.

  Moreover, since the transparent conductive film 62a is affixed to the bottom 108a of the lower box part 108 similarly to Example 1, since the conductive film 62a absorbs electromagnetic waves, a shielding property is ensured, and the conductive film 62a. Since static electricity is discharged by air discharge from the air, it is possible to prevent the operation of the control board 10a from being troubled by excessively accumulated static electricity.

  In addition, since the conductive film 62a is connected to the grounding terminal of the control board 10a through the stainless plate 46a and the corner electrode, the conductive film 62a can be grounded through the grounding terminal, thereby preventing the accumulation of static electricity. Can be further improved. In particular, since the conductive film 62a is affixed to the bottom 108a of the lower box portion 108 facing the main body of the pachinko machine, the control board box 104 is charged by static electricity generated by a game ball moving in the pachinko machine passage. It can be prevented efficiently. The stainless steel plate 46a also serves as a reinforcing means for reinforcing the lower box portion 108 (particularly the side surface 138).

  Further, in the control board box 104 of this embodiment, a sub space 147 is formed between the first wall portions 111 and 139 and the second wall portions 113 and 145, and the inside of the second wall portions 113 and 145. Is a main space 149 for accommodating the control board 10a, and the main space 149 and the sub space 147 are partitioned by two second wall portions 113 and 145. For this reason, intrusion of unauthorized foreign substances (for example, a wire or a resin plate) into the control board box 104 can be prevented. In particular, since the first wall portions 111 and 139 overlap each other and the second wall portions 113 and 145 also overlap each other, it is possible to allow unauthorized foreign objects to enter from between the upper box portion 106 and the lower box portion 108. Since it is necessary to meander the foreign matter along the first wall portions 111 and 139 and the second wall portions 113 and 145, it is very difficult to enter such foreign matter. And these things can prevent fraud with respect to the control board box 104.

  In addition, since the engaging concave portion 143 is formed by the convex portion 141 protruding from the outer surface of the lower box portion 108 and the end portion of the first wall portion 111 of the upper box portion 106 enters the engaging concave portion 143, This engagement recess 143 also makes it difficult for foreign matter to enter and prevents fraud.

  Next, the injection molding of the upper box portion 106 of the control board box 104 described in the second embodiment will be described, and an embodiment of the invention according to claims 3 and 4 will be described. First, the molding die 200 used in the present embodiment will be described with reference to FIG.

  The molding die 200 includes a pressurization unit 201 that is driven up and down by a lift drive unit of an injection molding machine (not shown), an upper mold body 203 disposed below the pressurization unit 201, and an upper mold body 203 that is held by the upper mold body 203. The molding part 205, the lower molding part 207 arranged facing the upper molding part 205, the replacement insert 209 assembled in the lower molding part 207, the lower mold body 211 holding the lower molding part 207, and the upper mold body 203 And a protruding member 213 disposed between the upper molding portion 205 and the lower molding portion 207 and the lower mold body 211, a mechanism housing portion 215 disposed on the lower side of the lower mold body 211, and a lower side of the mechanism housing portion 215. It is comprised from the fixing | fixed part 217 etc. which were distribute | arranged to.

  The lower molding part 207, the lower mold body 211, the mechanism housing part 215, and the fixing part 217 are connected to each other and integrated. The mechanism accommodating portion 215 accommodates an extrusion mechanism 219 for releasing the molded product, and the extrusion mechanism 219 penetrates the lower mold body 211 and the lower molding portion 207. Further, a positioning rod 220 for defining the relative positions of the lower molding part 207, the lower mold body 211, the mechanism housing part 215, and the fixing part 217 passes through them.

  The replacement insert 209 assembled in the lower molding portion 207 corresponds to a connector hole type, and as shown in an enlarged view in FIG. 16, the recess forming members 209a and 209b and the connector hole forming member 209c are held by the holding member 209d. It is a structure to hold. Four connector hole forming members 209c are provided corresponding to the connector holes 160a to 160d shown in FIG. 9, and each of the connector hole forming members 209c corresponds to the inner peripheral shape of each of the connector holes 160a to 160d. have.

  The replacement insert 209 can be attached to and detached from the lower molding portion 207, and the connector hole forming member 209c can be attached to and detached from the holding member 209d. Therefore, when changing the shape of any of the connector holes 160a to 160d, it is only necessary to replace the corresponding connector hole forming member 209c, and it is not necessary to change the entire replacement insert 209. Alternatively, the number of connector holes 160a to 160d can be increased or decreased by changing the number of connector hole forming members 209c.

  As shown in FIG. 15, the lower molding portion 207 corresponding to the inner surface mold is provided with a lower cavity surface 207 a, which corresponds to the shape on the inner surface side of the upper box portion 106 in cooperation with the replacement insert 209. It becomes a mold. The lower molding portion 207 is provided with a molten resin passage 207b and a gate mechanism 207c that are only partially illustrated.

  Further, a stopper 208 is disposed at a position adjacent to the replacement insert 209. A part of the lower cavity surface 207a is provided on the upper surface of the stopper 208 as shown in an enlarged view in FIG. Further, the tip 219a of the extrusion mechanism 219 is smoothly continuous with the lower cavity surface 207a as shown in FIG. 16 during molding, and becomes a part of the molding die.

  The stopper 208 is also held by the lower mold main body 211. The lower mold main body 211 is provided with a slide guide 210 on the outer side (the right side in FIG. 11) of the portion in contact with the stopper 208. The portion where the slide guide 210 is provided is provided with a gently inclined slide surface 212 that is lowered toward the stopper 208, and the inclination of the slide surface 212 is aligned with the bottom surface 213 a of the protruding member 213. .

  The protruding member 213 is a member for forming the vent hole 28 (see FIG. 13), and includes a number of protrusions 213 b corresponding to the vent hole 28. Further, the upper surface 213c of the protruding member 213 is parallel to the bottom surface 213a, and the upper mold main body 203 and the upper molded portion 205 are provided with an inclined pressing surface 204 that is aligned with the upper surface 213c. A step (not shown) is formed on the bottom surface 213a of the protruding member 213, and this step is used for positioning when the protruding member 213 is retracted (when the mold is opened).

  Note that an elastic body such as a coil spring may be used for biasing the protruding member 213 in the backward direction. A push-pull member 225 is attached to the upper mold main body 203. The push-pull member 225 is a round bar-like member and is inclined with respect to the mold closing and mold opening direction (vertical direction) of the molding die 200. The inclination angle θ is preferably 15 to 20 degrees, and is set to 20 degrees in this embodiment.

  When the molding die 200 is closed (the state shown in FIG. 11), the push-pull member 225 passes through the sliding hole 213d of the protruding member 213 and is provided from the lower mold body 211 to the mechanism housing portion 215. Although reaching the hole 227, the sliding hole 213d can be slid in accordance with the elevation of the upper mold main body 203 (see FIG. 12), and can enter and leave the sliding hole 213d (see FIG. 13).

  Further, a series of guide holes 221 are provided in the lower mold body 211 and the mechanism housing portion 215, and a guide hole 223 coaxial with the guide holes 221 is provided in the upper mold body 203. A spring accommodating portion 223a is provided at the upper end portion of the guide hole 223, and a coil spring 229 is accommodated therein. The length of the coil spring 229 is longer than the accommodating portion 223a, and protrudes above the guide hole 223 when not compressed, but is accommodated in the accommodating portion 223a when compressed in the axial direction.

  A guide shaft 231 is fixed to the pressure unit 201, and the guide shaft 231 passes through the coil spring 229 and the guide hole 223. The guide shaft 231 can enter and exit the guide hole 223 according to the elevation of the pressurizing unit 201. When the guide shaft 231 is inserted into the guide hole 223, the guide portion 231a at the tip slides inside the guide hole 223. As shown in FIG. 14, an upper cavity surface 205a is provided in the upper molding portion 205 corresponding to the outer surface mold. Further, as shown in an enlarged view in FIG. 16, the surface facing the lower molding portion 207 of the projection member 213 is continuous with the upper cavity surface 205 a when the mold is closed, and the projection member 213 becomes a part of the upper molding portion 205. . Further, the upper molding portion 205 is provided with a molten resin passage 205b and a gate mechanism 205c, which are only partially illustrated.

  In the state where the molding die 200 is opened, as shown in FIG. 13, the upper mold body 203 and the upper molding section 205, and the lower mold body 211, the lower molding section 207, and the protruding member 213 are separated vertically. . Further, the upper mold body 203 and the pressurizing unit 201 are separated by the repulsive force of the coil spring 229.

  When the pressurization unit 201 is lowered by the lift driving means (not shown), the upper mold body 203 is also lowered together with the pressurization unit 201. Accordingly, as shown in FIG. 12, the guide shaft 231 enters the back of the guide hole 221 and the push-pull member 225 also enters the back of the sliding hole 213d. Then, the inclined push-pull member 225 moves directly below the upper die main body 203 so that the protruding member 213 slides and is pulled toward the stopper 208 side.

  Furthermore, when the pressurizing unit 201 and the upper mold body 203 are lowered, the mold is closed as shown in FIG. At this time, it corresponds to the shape of the upper box portion 106 between the lower cavity surface 207a constituted by the lower molding portion 207 and the replacement insert 209 and the upper cavity surface 205a constituted by the upper molding portion 205 and the protruding member 213. A cavity 230 is formed.

  In this state, molten resin (transparent polycarbonate in this embodiment) is discharged into the cavity 230 through the molten resin passages 205b and 207b to fill the cavity 230. After the molten resin passages 205b and 207b are closed by the gate mechanisms 205c and 207c and the injection of the molten resin is stopped, the resin in the cavity 230 is solidified, and the upper mold body 203 is lifted together with the pressure unit 201 to open the mold. . At this time, the push-pull member 225 moves the projecting member 213 in a direction away from the stopper 208, contrary to the mold closing operation. Then, as the mold open state shown in FIG. 13, the solidified resin, that is, the upper box portion 106 is taken out. In the upper box portion 106, a connector hole 160 is formed in a portion where the inflow of resin is blocked by the connector hole forming member 209c, and a vent hole 28 is formed in a portion where the inflow of resin is blocked by the protrusion 213b. .

  And if the above-mentioned mold closing-injection-mold opening (removal) is repeated, the upper box part 106 can be shape | molded one after another. As shown in FIG. 13, the push-pull member 225 (and the guide shaft 231) is not detached from the projecting member 213 (and the lower mold body 211), and the upper box portion is kept in combination as shown in FIG. 106 may be taken out.

  In this molding die 200, a replacement insert 209 having a connector hole forming member 209c for forming the connector hole 160 is detachable from the lower molding portion 207, and the connector hole forming member 209c is attached to the replacement insert 209. Since it is detachable, when the shape, number or arrangement of the connector holes 160 is changed, it is only necessary to replace the connector hole forming member 209c or to increase or decrease the number according to the changed contents. The upper box part 106 having 160 shapes, numbers and arrangements can be easily injection molded.

That is, it is not necessary to manufacture a molding die according to the shape, number, or arrangement of the connector that changes depending on the model of the gaming machine, and only the replacement insert 209 or the connector hole forming member 209c according to the shape of the connector. Therefore, it is possible to save human resources and physical resources related to the design and manufacture of the molding die 200. As a result, human resources and physical resources related to the design and manufacture of the control board box 104 can be saved. Can be saved.
(Modification 2) Next, another example of a molding die used for injection molding of the upper box portion 106 will be described as Modification 2. In addition, illustration and description are abbreviate | omitted about the part similar to the above-mentioned molding die 200. FIG.

  As shown in FIGS. 17 to 20, the molding die used for the injection molding of the upper box portion 106 corresponds to the upper mold 170 corresponding to the outer surface mold, the lower mold 172 corresponding to the inner surface mold, and the connector hole mold. It consists of a replacement 174. The upper mold 170 is provided with an upper cavity surface 176 corresponding to the shape of the outer surface side of the upper box portion 106. Further, in the upper mold 170, a protrusion member 180 having a plurality of protrusions 178 for forming the vent holes 28 on the side surface 110 of the upper box portion 106 and a push for moving the protrusion member 180 in the left-right direction in the drawing. A pull member 182 is arranged. The projecting member 180 and the push-pull member 182 are in contact with each other via an inclined surface 184. When the push-pull member 182 is lowered, the projecting member 180 moves to the left in the figure, and when the push-pull member 182 is raised, the projecting member 180. Is a structure that returns to the position before the movement.

  On the other hand, the lower mold 172 is provided with a lower cavity surface 186 corresponding to the shape on the inner surface side of the upper box portion 106. However, a cavity surface is not provided in a portion corresponding to the vicinity of the connector holes 160a to 160d, and a replacement insert receiver 188 is formed. The replacement insert 188 matches the shape of the replacement insert 174, and the replacement insert 174 is inserted into the replacement insert receiver 188 without looseness (see FIGS. 18 to 20). The replacement insert 174 can be removed from (see FIG. 17). A through-hole 190 for forming a connector hole 160 (representing the connector holes 160a to 160d without using the subscripts a to d) is provided in the upper portion of the replacement element 174.

  Although not shown, the lower mold 172 is provided with a lock mechanism for locking the replacement insert 174 to the lower mold 172 by locking the replacement insert 174 inserted in the replacement insert receiver 188. Yes. Although not shown, the lower mold 172 is provided with a molten resin passage for discharging molten resin supplied from an injection device (not shown) to the lower cavity surface 186 side and a gate mechanism for cutting off the molten resin passage. It has been.

  In order to injection-mold the upper box portion 106 with this molding die, first, the replacement insert 174 is inserted into the replacement insert receiver 188 of the lower mold 172 and locked by a lock mechanism (see FIG. 18). Next, the upper mold 170 is lowered to close the mold. By this mold closing, a cavity 192 is formed between the upper cavity surface 176, the lower cavity surface 186, and the replacement element 174 (see FIG. 19). The cavity 192 corresponds to the shape of the upper box portion 106. Further, the penetrating portion 190 passes through the cavity 192 and is in contact with the upper cavity surface 176. Further, the push-pull member 182 is lowered to move the projecting member 180 to the left in the figure, and the tip of the projection 178 is brought into contact with the lower cavity surface 186.

  In this state, molten resin (transparent polycarbonate in this embodiment) is discharged into the cavity 192 through the molten resin passage to fill the cavity 192. After the molten resin passage is closed by the gate mechanism and the injection of the molten resin is stopped, the upper mold 170 is lifted after the resin in the cavity 192 is solidified, the mold is opened, and the solidified resin, that is, the upper box portion 106 is taken out. In the upper box portion 106, a connector hole 160 is formed in a portion where the inflow of resin is blocked by the through portion 190, and a vent hole 28 is formed in a portion where the inflow of resin is blocked by the protrusion 178.

  And if the above-mentioned mold closing-injection-mold opening (removal) is repeated, the upper box part 106 can be shape | molded one after another. In this molding die, the replacement insert 174 having the through-hole 190 for forming the connector hole 160 can be freely attached to and detached from the replacement insert receiver 188 of the lower mold 172. If a replacement insert 174 having through-holes 190 having a shape, number and arrangement according to the arrangement is prepared, and this is mounted on the lower mold 172 and injection-molded, a connector hole 160 corresponding to the replacement insert 174 is provided. The upper box portion 106 can be injection molded. That is, it is not necessary to manufacture a molding die according to the shape, number, or arrangement of the connector that changes according to the model of the gaming machine, and only the replacement 174 needs to be manufactured according to the shape of the connector. In addition, it is possible to save human resources and physical resources related to the design and manufacture of the molding die, and to save human resources and physical resources related to the design and manufacture of the control board box 104.

Finally, an embodiment of the invention according to another invention 6 will be described as a fourth embodiment. FIG. 21 and FIG. 22 show an example of the wiring pattern of the control board. As shown in FIG. 21, on the front side of the control board 90, no wiring pattern is provided in the connector arrangement region 94 to which the connectors 92a to 92e are attached (the wiring pattern inside the one-dot chain line is not shown). ). On the other hand, as shown in FIG. 22, on the back side, a wiring pattern is provided in almost the entire area including the back surface of the connector arrangement region 94 (the wiring pattern inside the one-dot chain line is omitted), and the connector 92a To 92e are connected to the wiring pattern on the back side.

  If this control board 90 is used, as shown in FIG. 23, the lower box portion 96 covers the entire back side of the control board 90, and the upper box portion 98 covers the portion excluding the front-side connector arrangement region 94, The connectors 92a to 92e can be exposed. In this case, since there is no wiring pattern in the connector placement area 94 exposed together with the connectors 92a to 92e, unauthorized modification such as changing a part of the wiring pattern or replacing or adding a part of the parts is performed. It can be surely prevented. The upper box part 98 and the lower box part 96 are made of transparent polycarbonate. Moreover, since the electroconductive film (illustration is abbreviate | omitted) is affixed on the lower box part 96 similarly to Example 1, the electromagnetic wave shield similar to Example 1 and the static electricity removal effect can be exhibited.

  As mentioned above, although embodiment of this invention was described according to the Example, this invention is not limited to such an Example, and it cannot be overemphasized that it can implement variously in the range which does not deviate from the summary of this invention. For example, in the above embodiment, the control board box is made of transparent polycarbonate, but other materials such as transparent polypropylene or ABS can be used. Other than these, any transparency and strength can be used as long as necessary.

FIG. 3 is an exploded perspective view of a control board box according to the first embodiment. It is a top view of the left half part of the lower box part of the control board box of Example 1. FIG. It is a fragmentary sectional view along the AA line in FIG. It is a fragmentary sectional view in alignment with the BB line in FIG. It is a fragmentary sectional view along the short side of the connector guide of the control board box of Example 1. FIG. It is a perspective view of the connector guide of the modification 1. It is a perspective view of the state where the control board box of Example 2 was opened. It is a perspective view of the state where the control board box of Example 2 was closed. It is a partial top view of the upper box part of the control board box of Example 2. FIG. 9 is a partial cross-sectional view of the control board box according to the second embodiment taken along line CC in FIG. 8. It is sectional drawing at the time of mold closing of the shaping die of Example 3. It is sectional drawing of the state in the middle of mold opening (mold closing) of the shaping die of Example 3. It is sectional drawing at the time of mold opening of the shaping die of Example 3. FIG. It is a bottom view of the upper mold body and upper molding part of the molding die of Example 3. It is a top view of the lower mold main body and the lower molding part of the molding die of Example 3. It is an enlarged view of D section of FIG. It is explanatory drawing of the state which removed the replacement insert in the shaping die of the modification 2. It is explanatory drawing of the state which mounted | wore the replacement insert in the shaping die of the modification 2. It is explanatory drawing at the time of mold closing of the shaping die of the modification 2. It is explanatory drawing at the time of mold opening of the shaping die of the modification 2. FIG. 10 is a plan view of a control board according to a fourth embodiment. FIG. 10 is a rear view of a control board of Example 4. It is explanatory drawing of the structure of the control board box which accommodates the control board of Example 4. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Control board 10a ... Control board 12 ... Connector 14 ... Control board box 16 ... Upper box part (box member)
18 ... Lower box (box member)
20 ... Connector guides 20a to 20h ... Connector hole 22 ... Connector passage hole 30 ... Screw passage (connection means)
32 ... Screw connection (connection means)
42 ... Screw receiver (connecting means)
44 .. Screw receiver (connecting means)
80 ... Connector guides 80a-80e ... Connector hole 90 ... Control boards 92a-92e ... Connector 94 ... Connector placement region 96 ... Lower box part 98 ... Upper box part 104. ..Control board box 106 ... Upper box part (box member, perforated box member)
108 ... Lower box part (box member, counterpart box member)
132... Screw connection (connection means)
144 ... Screw receiver (connecting means)
152... Screw connection (connection means)
153 ... Screw receiver (connecting means)
160 ... Connector holes 160a to 160d ... Connector hole 170 ... Upper mold (outer mold)
172 ... Lower mold (inner surface mold)
174 ... Replacement insert (connector hole type)
176... Upper cavity surface 186... Lower cavity surface 188 .. Replacement insert 190 .. Penetration portion 192 .. Cavity 200 .. Mold 203 .. Upper mold body 205. -Upper molding part (outer surface type)
205a ... Upper cavity surface 207 ... Lower molding part (inner surface mold)
207a ... Lower cavity surface 209 ... Replacement insert 209c ... Connector hole forming member 211 ... Lower mold body 217 ... Fixing part 230 ... Cavity

Claims (2)

In a gaming machine comprising a control board box that contains an upper box part, a lower box part, and a connector guide and accommodates a control board,
A wiring pattern is printed on the control board,
The upper box part is provided with a rectangular cylindrical connector passage hole,
The connector guide is provided with a plurality of connector holes having a shape along the outer peripheral shape of each of the plurality of connectors attached to the control board,
The control board is put in the lower box part and fixed, and the connector guide is placed on the control board in a state where the plurality of connectors are passed through the plurality of connector holes, and the upper box part is placed on the lower box part. The plurality of connectors are exposed to the connector passing hole side through the corresponding connector holes,
The connector guide is
By exposing the connector to the outside and not exposing the wiring pattern, movement along the surface of the control board is regulated by the connector penetrating the connector hole,
The lower end portion of the connector passage hole is aligned with the upper edge portion of the protruding portion formed on the outer periphery of the connector guide, and by pressing the upper edge portion, the upper box portion and the lower box portion Movement along the direction perpendicular to the surface of the control board is restricted,
In the connector placement region, which is the front side of the control board and is not covered by the upper box part inside the connector passage hole, the wiring pattern is not provided, and the back side of the control board is The gaming machine is characterized in that the wiring pattern is provided in the back surface area of the connector arrangement area, and the connector and the wiring pattern are connected in the back area of the connector arrangement area . A connecting means for connecting the upper box part and the lower box part in a joined state;
The connection means is configured so that the upper box part and the lower box part cannot be separated unless the connection means is destroyed after being connected, and the opening of the control board box can be determined by the trace of destruction. The gaming machine according to claim 1 .

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