JP4808433B2 - Board case for gaming machines - Google Patents

Description

  The present invention relates to a board case for a gaming machine that houses a control board installed in a gaming machine such as a pachinko machine or a slot machine.

  In recent years, in gaming machines such as pachinko machines and slot machines, a control board on which electronic parts such as a ROM and a connector are mounted is housed in a board case that can be opened and closed by an upper case and a lower case. An electronic control system is employed in which the case is attached directly to a predetermined location of the gaming machine or via an attachment plate fixed to the lower case, and the game operation is controlled by electronic components such as a ROM on the control board side. In this type of gaming machine, the electronic parts such as ROM mounted on the control board cannot be illegally exchanged, and at the same time, the board case can be opened and easily inspected at the time of inspection or repair by the supervisory authority. It is necessary to do so.

As a countermeasure for that and as an alternative to the conventional sealing method, as disclosed in Patent Document 1, for example, a plurality of couplings for coupling the upper case and the lower case to the peripheral portion of the upper case of the substrate case The part is formed to project outward, and at the time of one connection, at least one of the connection parts is connected in a separable manner by a fastener such as a one-way screw, rivet or pin, and when it is opened after the connection, the connection is combined What cut | disconnected the part with the nipper etc. from the main body side of the upper case is known. In this countermeasure, when the package is opened after the coupling, traces of the coupling part and the cutting part remain in the upper case, and the coupling part cut from the upper case remains coupled to the lower case by the fastener. There is an advantage that it is effective in preventing the exchange. In addition, in the thing disclosed by patent document 1, the upper case is isolate | separated into an upper cover part and a side wall part in detail, and the several connection part is formed in the peripheral part of this upper cover part.
Japanese Patent No. 2889529

  However, in the conventional countermeasures described above, the portion where the coupling portion is cut from the main body side of the upper case also has a function of supporting the coupling portion, and therefore needs to be set to a certain degree of strength. For this reason, it is not easy to cut this portion, and there is a problem that it takes much time. Further, since the cut portion protrudes from the peripheral portion of the upper case, when the upper case and the lower case are coupled again, the operator's hand may be caught at the cut portion and injured.

  The present invention has been made in view of the above points, and the object of the present invention is to improve the coupling portion of the fastener and the upper case and cut only a part of the fastener to cut the upper case and the lower case. We will provide a board case for gaming machines that can be easily cut while leaving traces of cutting on both cases to prevent fraud, and that can prevent injury at the cutting site. Is.

In order to solve the above-described problems, in the invention according to claim 1, a storage space for storing a control board is configured by an upper case and a lower case as a board case for a gaming machine, and a peripheral portion of the upper case is formed. Is formed with a plurality of coupling parts for coupling the upper case and the lower case or the mounting plate fixed to the lower case, and at the time of one coupling, at least one of the coupling parts is separably coupled by a fastener It is assumed that it is configured to. Then, the fastener includes a pin portion having a first engagement claw at the tip, a cylindrical or frame-shaped head that surrounds the outer periphery on the proximal end side of the pin portion with a predetermined gap therebetween , A second engaging claw is formed on the outer peripheral surface of the head, and includes a connecting portion that connects the head and the base end of the pin portion. Moreover, when each said coupling | bond part is formed in the shape which has the bottom part which can respectively fit the head of a fastener, and the head of a fastener fits in the coupling | bond part in the internal peripheral surface of this each coupling | bond part A locking recess that engages with the second engaging claw is formed, and a through-hole through which the pin portion passes when the head portion of the fastener is fitted into the coupling portion is provided at the bottom of each coupling portion. Further, the lower case or the mounting plate is provided with a locking hole in which the first engaging claw at the tip of the pin portion engages in the retaining state when the head of the fastener is fitted in the coupling portion. To do.

  In this configuration, when the upper case and the lower case or the mounting plate fixed to the lower case are coupled by the fastener at the coupling portion of the upper case, the distal end side of the pin portion of the fastener, that is, the first engagement claw side is arranged. On the front side, the head of the fastener is pushed into a predetermined coupling portion and fitted. Then, the first engaging claw at the distal end of the pin portion of the fastener engages with a locking hole provided in the lower case or the mounting plate in a retaining state, and the second engaging claw on the head of the fastener is The upper case and the lower case or the mounting plate (hereinafter referred to as the lower case side) are connected to each other in a non-separable manner by the fasteners by engaging with the engaging recesses on the inner peripheral surface of the connecting portion.

On the other hand, when opening the upper case for inspection or the like from this coupled state, the connecting part that connects the head of the fastener and the base end of the pin part is cut with a nipper or the like, and the upper case and the lower case side by the fastener The upper case can be opened by releasing the connection with. In this case, the pin portion of the fastener remains on the lower case side with its first engaging claw engaged with the locking hole of the lower case or the mounting plate in a retaining state, while the head portion of the fastener is Since the second engaging claw engages with the locking recess of the coupling portion of the upper case and remains in the coupling portion, it is possible to effectively prevent illegal acts. Moreover, the cutting point of the fastener are the connecting portion for connecting the base end and the head of the pin portion, it is possible to perform the cut easily and quickly. In addition, since the cut portion is inside the head portion that remains fitted in the coupling portion on the upper case side, when the upper case and the lower case are coupled again, an operator's hand etc. Will not get caught and injured. Here, the connecting portion is preferably sized so that it can be easily cut by a tool such as a nipper, and has a fragility that can be broken by hitting the tip of a driver tool. Also good.

According to a second aspect of the present invention, there is provided a gaming machine board case having the same premise as that of the first aspect of the present invention. The fastener includes a pin portion having a first engaging claw at the tip, and a base end side of the pin portion. A cylindrical or frame-shaped head that surrounds the outer periphery with a predetermined gap, and a connecting portion that connects the head and the base end of the pin portion. Each coupling part is formed in a shape having a bottom part into which the head part of the fastener can be fitted, and the pin part when the head part of the fastener is fitted into the coupling part at the bottom part of each coupling part. And a first engaging claw at the tip of the pin portion engages with the lower case or the mounting plate when the head portion of the fastener is fitted in the coupling portion. It is set as the structure which provides a locking hole.

  In this configuration, when the head portion of the fastener is pushed into the coupling portion and fitted, the first engagement claw at the tip of the pin portion of the fastener is engaged with the locking hole of the lower case or the mounting plate in a state of being prevented from coming off. By combining, the upper case and the lower case side are connected to each other by a fastener so as not to be separated. In addition, when the upper case is opened by releasing this coupling by cutting the coupling part of the fastener, the head of the fastener remains fitted in the coupling part of the upper case unless the upper case is turned upside down. Combined with the fact that the pin portion of the fastener remains on the lower case side, it is possible to effectively prevent fraud.

  The invention according to claim 3 provides a preferable form for storing a fastener that can be used for coupling the upper case and the lower case side and is not used immediately in the board case for gaming machines according to claim 1. It is. That is, the third engagement claw is located at a position different from the second engagement claw in the circumferential direction on the outer circumferential surface of the head of the fastener and in a position closer to the tip than the second engagement claw in the axial direction. On the other hand, a locking recess is formed on the inner peripheral surface of each of the coupling portions to be engaged with the third engagement claw when the head portion of the fastener is in a temporarily fixed state where the head of the fastener is shallowly fitted in the coupling portion. Make the configuration.

  In this configuration, the head of the unused fastener is shallowly fitted into the coupling portion, and the third engaging claw on the outer circumferential surface is engaged with the locking recess on the inner circumferential surface of the coupling portion, thereby The fastener can be stored in a temporarily fixed state at the coupling portion. In addition, when the fastener is used for coupling the upper case and the lower case from this temporarily fixed state, it is only necessary to push the head of the fastener into the coupling portion as it is and deeply fit it.

  The invention according to claim 4 provides another form for storing the unused fasteners. That is, the holding portion for holding the fastener is formed on the inner surface of the upper case by sandwiching the head of the fastener that can be used for coupling the upper case and the lower case or the mounting plate.

  According to a fifth aspect of the present invention, in the gaming machine board case according to any one of the first to fourth aspects, the fastener is made of a non-conductive synthetic resin. In this configuration, even if the fastener has a complicated shape, it can be easily molded, and if the fastener or a pin part cut and separated from it is accidentally dropped on the control board in the board case But there is no leakage.

  According to a sixth aspect of the present invention, in the board case for gaming machines according to any one of the first to fifth aspects, an opening is formed in the upper case corresponding to the connector mounted on the control board. On the other hand, a connector spacer that surrounds the periphery of the connector along the periphery of the opening of the upper case is arranged between the control board and the upper case. In this configuration, even if there is a gap between the opening of the upper case and the connector on the control board side that extends from the opening to the outside, the connector spacer is disposed between the control board and the upper case. Since the surroundings are surrounded, fraudulent acts on the control board can be prevented from the gap.

  In the inventions according to claims 7 and 8, the coupling force when the upper case and the lower case side are coupled to each other by the fastener, more specifically, the first engagement claw at the tip of the pin portion of the fastener is the lower case or the attachment. Means are provided for increasing the engagement force when engaging the locking hole of the plate in the retaining state. That is, in the invention according to claim 7, the first engaging claw is formed so that the engaging surface that engages with the peripheral portion of the locking hole intersects the outer peripheral surface of the pin portion at an acute angle. A locking surface that is inclined corresponding to the engaging surface is formed at the peripheral edge of the locking hole. In the invention according to claim 8, the first engaging claw is configured to have a recess in the engaging surface that engages with the peripheral edge of the locking hole. A convex portion corresponding to the concave portion is formed.

  The invention according to claim 9 is the circuit board case for gaming machines according to claim 7 or 8, wherein the connecting part is configured to have a weak part in part, and the weak part is connected to the head of the fastener. Rather than the first engagement claw coming out of the locking hole when the upper case and the lower case are to be pulled apart while the first engagement claw is fitted in the portion and the first engagement claw is engaged in the locking hole in a state of being prevented from coming off. The configuration is set so as to break first. In this configuration, when the upper case and the lower case side are coupled by the fastener and then the upper case and the lower case are to be separated to release the coupling illegally, the first engaging claw at the tip of the pin portion is The brittle part of the connecting part breaks before it comes out of the locking hole on the lower case side, and the opening part remains in the same way as when the connecting part is cut with a nipper, etc. Figured.

  As described above, according to the board case for gaming machines of the present invention, after the upper case and the lower case side are coupled by the fastener at the coupling portion of the upper case, the head portion of the fastener and the pin portion are coupled. When the connecting portion is cut, the head portion remains on the joint portion of the upper case and the pin portion remains on the lower case side as a trace of cutting, so that illegal acts can be effectively prevented. In addition, since the cutting portion of the fastener is a connecting portion inside the head, the cutting can be easily and quickly performed, and the cutting portion can be cut when the upper case and the lower case are coupled again. It is possible to prevent an operator's hand from getting caught and injured.

  In particular, in the invention according to claim 3, the head portion of the unused fastener can be stored in a temporarily fixed state at the coupling portion, and the fastener can be stored in the upper case and the lower case from the temporarily fixed state. When used for coupling to the side, it is only necessary to push the head of the fastener into the coupling part as it is and deeply fit it, so that the usability can be improved.

  In the invention which concerns on Claim 4, since an unused fastener can be hold | maintained and hold | maintained at the holding | maintenance part in an upper case, management can be facilitated and misuse can be prevented.

  In the invention according to claim 5, it is possible to easily form a fastener having a complicated shape, and the fastener or the pin portion cut and separated from the fastener is accidentally dropped on the control board in the board case. Even if left unattended, it is possible to prevent the occurrence of electric leakage and the like, which is effective for practical use.

  In the invention according to claim 6, even when there is a gap between the opening of the upper case and the connector on the control board extending from the opening to the outside, the connector disposed between the control board and the upper case Since the periphery of the connector is surrounded by the spacer, there is also an effect that an illegal act against the control board can be prevented from the gap.

  In the invention which concerns on Claim 7 or 8, the engagement force when the 1st engagement nail | claw of the pin part front-end | tip of a fastener engages with the locking hole of a lower case or a mounting plate in a retaining state can be heightened. Therefore, it is possible to reliably prevent fraud.

  Furthermore, in the invention according to claim 9, when the upper case and the lower case side are joined by the fastener and then the upper case and the lower case are to be separated to release the coupling illegally, the tip of the pin portion of the fastener The fragile part of the connecting part is broken before the first engaging claw of the first case comes out of the locking hole on the lower case side, and the opening part remains in the same manner as when the connecting part is cut with a nipper or the like. Actions can be prevented more reliably.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments that are the best mode for carrying out the present invention will be described below with reference to the drawings.

  1 and 2 show a gaming machine substrate case A according to a first embodiment of the present invention. In the substrate case A, an upper case 1 and a lower case 2 constitute a rectangular box-shaped case main body 3 as an accommodation space, and an electronic component such as a ROM (not shown) or a connector 4 is provided in the case main body 3. The control board 5 on which is mounted is accommodated. The substrate case A is attached to a predetermined location of the gaming machine (for example, the inner wall surface of the housing in the case of a slot machine) via an attachment plate 6 fixed to the lower surface of the lower case 2.

  The upper case 1 and the lower case 2 are both made of a non-conductive synthetic resin such as a transparent or translucent acrylic resin, and one of the two short sides of the lower case 2 facing each other is outside. An engaging protrusion 11 extending in the direction is formed, and this engaging protrusion 11 is inserted into a slit 12 provided at a corresponding portion of the mounting plate 6 and is formed on a corresponding short side of the upper case 1. The upper case 1 is opened and closed with respect to the lower case 2 by being inserted into a slit (not shown) provided, with the engaging protrusion 11 as a hinge point. Further, on the short side of the upper case 1 opposite to the open / close hinge point, there are six connecting portions 13, 13,... For connecting to the lower case 2 or the mounting plate 6 along the short side and each outward. Is formed to protrude. And at the time of one time coupling | bonding, the upper case 1 and the lower case 2 are couple | bonded by the fastener 14 with the at least 1 coupling | bond part 13 so that separation is impossible.

The fastener 14 is made of a non-conductive synthetic resin such as an acrylic resin, like the upper case 1 and the lower case 2, and has a first engagement claw 21 at the tip as shown in detail in FIG. The pin portion 22, the cylindrical head portion 23 that surrounds the outer periphery of the base end side of the pin portion 22 with a predetermined gap, and the head portion 23 and the base end of the pin portion 22. It is provided with connecting portions 24 and 24 that are connected to each other at two positions across the axis. The first engaging claws 21 are formed on both sides of an inverted U-shaped groove 25 formed at the tip of the pin portion 22, and a later-described locking hole 37 of the lower case 2 or the mounting plate 6. , 42 is easily deformed and easily inserted. At the base end of the pin portion 22, two arc-shaped flange portions 26 and 26 projecting laterally between the connecting portions 24 and 24 are formed. On the outer peripheral surface of the head portion 23, second engaging claws 27 are formed at the center portion in the axial direction and at two positions sandwiching the axial line, respectively, and at the distal end side in the axial direction and in the circumferential direction. However, the third engaging claws 28 are formed at two positions 90 degrees different from the respective second engaging claws 27. Each of the second engaging claws 27 can be elastically deformed by a U-shaped notch groove 29 formed on three sides around the periphery, that is, both the left and right sides and the tip side, and each of the third engaging claws 28 is also configured. The notch grooves 30 and 30 formed on both the left and right sides can be elastically deformed. Each connecting portion 24 is narrow and fragile over the entire length, and in particular, has a fragile portion 24 a having a smaller width dimension than other portions at a portion near the pin portion 22.

  On the other hand, each coupling portion 13 is formed in a cylindrical shape having a bottom portion 13a into which the head portion 23 of the fastener 14 can be fitted, as shown in detail in FIGS. The length of the head portion 23 of the fastener 14 in the axial direction is set to be approximately the same. On the inner peripheral surface of each coupling portion 13, provisional fixing in which the head 23 of the fastener 14 is shallowly fitted into the coupling portion 13 as shown in FIGS. 4 and 5 at two positions sandwiching the axis near the opening. A locking recess 31 for temporary fixing with which each of the third engaging claws 28 engages is formed in the state, and the phase in the center portion in the depth direction and in the circumferential direction is for each temporary fixing. When the head portion 23 of the fastener 14 is fitted in the coupling portion 13 as shown in FIG. 6A and FIG. A locking recess 32 for coupling with which the two engaging claws 27 are engaged is formed. Further, the bottom portion 13a of each coupling portion 13 is provided with a through hole 33 through which the pin portion 22 of the fastener 14 penetrates in the coupled state.

  The lower case 2 and the mounting plate 6 are respectively provided with fastening receiving portions 35 or 36 corresponding to the coupling portions 13 of the upper case 1. The fastening receiving portion 35 of the lower case 2 is formed to protrude outward from the short side of the lower case 2 in the same manner as the coupling portion 13 of the upper case 1. The fastening receiving portion 35 includes the upper case 1. .. Of each of the six coupling portions 13, 13,... Corresponding to the two coupling portions 13, 13 at both ends, respectively, as shown in FIG. A locking hole 37 that engages the first engaging claw 21 at the tip of the pin portion 22 in a retaining state and a bottomed cylindrical supporting portion 38 that supports the periphery of the locking hole 37 when they are combined is provided. In addition, a substantially square opening 39 is provided corresponding to each of the four central coupling portions 13, 13,. Further, the fastening receiving portion 36 of the mounting plate 6 is a pedestal type mounted on the mounting plate 6, and two supports of the fastening receiving portion 35 of the lower case 2 when the mounting plate 6 is fixed to the lower surface of the lower case 2. It is sandwiched between the portions 38 and 38. The fastening receiving portion 36 corresponds to each opening 39 of the fastening receiving portion 35 of the lower case 2, and the opening 39 when the fastening receiving portions 35 and 36 are overlapped with each other as shown in FIG. A bulging portion 41 having a substantially square shape facing the upper surface of the fastening receiving portion 35 of the lower case 2 is formed through the head 23 of the fastener 14 at the center of the bulging portion 41. A locking hole 42 is provided to engage the first engaging claw 21 at the tip of the pin portion 22 in a retaining state when fitted into the coupling portion 13.

  Further, the upper case 1 has both longitudinal end portions formed one step lower than the central portion, and the upper case 1 has both longitudinal end portions corresponding to the connectors 4 mounted on the control board 5. A plurality (four in the figure) of openings 51, 52, 53, 54 are provided. As shown in FIG. 8, one of the openings 51 is between the connector 56 because the connector 56 of the connection cable 55 connected to the connector 4 on the control board 5 side has a movable coupling claw 57. It is formed so as to have a certain gap. Corresponding to the opening 51, a connector spacer 58 is disposed between the control board 5 and the upper case 1 so as to surround the periphery of the connector 4 on the control board 5 side along the periphery of the opening 51 of the upper case 1. ing. The connector spacer 58 is made of a non-conductive synthetic resin such as an acrylic resin. As shown in enlarged detail in FIG. 9 and FIG. A flange portion 58 a that abuts the periphery of the opening 51 of the upper case 1 is formed at one end of the upper case 1.

  In the other openings 52 to 54, for example, in the case of the opening 52, as shown in FIGS. 11 and 12, a recess 61 is formed for bringing the peripheral edge of the opening 52 closer to the control board 5. On the other hand, an eaves portion 63 projecting sideways is formed at the periphery of the connector 62 mounted on the control board 5, and the periphery of the opening 52 which is the bottom of the recess 61 abuts on the eaves 63. Thus, the upper case 1 and the lower case 2 are closed, so that no gap is generated between the connector 62 and the opening 52 of the upper case 1.

  Next, a method of using the gaming machine substrate case A will be described. Now, as shown in FIG. 1, the upper case 1 and the lower case 2 of the substrate case A are provided with the control substrate 5 in the case body 3. While being stacked and closed, the mounting plate 6 is fixed to the lower surface of the lower case 2. Further, the head portions 23 of the fasteners 14 are shallowly fitted into the respective coupling portions 13 of the upper case 1, and two third engaging claws 28, 28 on the outer circumferential surface thereof are respectively formed on the inner circumferential surface of the coupling portion 13. The fasteners 14 are held in a temporarily fixed state by the coupling portion 13 by engaging with the locking concave portions 31 and 31 for temporary fixing. In this temporarily fixed state, even if the substrate case A is turned upside down, the fastener 14 is not detached from the coupling portion 13 and can be stored easily and reliably.

  From such a state, for example, the head 23 of the fastener 14 in the temporarily fixed state is directly coupled to the first coupling portion 13 and the fifth coupling portion 13 from the front side of the upper case 1 in FIG. It pushes in in the part 13, and it is made to fit deeply until the head 23 contacts the bottom part 13a of the coupling | bond part 13. FIG. Then, in the fifth connecting portion 13 from the front side of the upper case 1, the first engaging claw 21 at the tip of the pin portion 22 of the fastener 14 is fastened to the mounting plate 6 as shown in FIG. The second engaging claws 27, 27 of the head portion 23 of the fastener 14 are engaged with the locking holes 42 of the portion 36 in a retaining state, and the coupling locking recesses on the inner peripheral surface of the coupling portion 13, respectively. By engaging with 32, 32, the coupling portion 13 of the upper case 1 and the fastening receiving portion 36 of the mounting plate 6 are coupled inseparably with the fastening receiving portion 35 sandwiching the fastening receiving portion 35 of the lower case 2. The Further, in the first connecting portion 13 from the front side of the upper case 1, the first engaging claw 21 at the tip of the pin portion 22 of the fastener 14 is fastened to the lower case 2 as shown in FIG. The second engaging claws 27 and 27 of the head portion 23 of the fastener 14 are engaged with the locking holes 37 of the portion 35 in a retaining state, and the coupling locking recesses on the inner peripheral surface of the coupling portion 13 respectively. By engaging with 32, 32, the coupling portion 13 of the upper case 1 and the fastening receiving portion 35 of the lower case 2 are coupled to each other by the fastener 14 so as not to be separated.

  As described above, in the case of the present embodiment, the coupling operation between the upper case 1 and the lower case 2 is performed by directly connecting the head portion 23 of the fastener 14 held in the temporarily fixed state to the coupling portion 13 of the upper case 1. Since it is sufficient to push it into 13, it is possible to improve usability.

  Further, when the upper case 1 and the lower case 2 of the board case A are closed and joined in a state where the control board 3 is stored in the case body 3, as shown in FIG. A certain amount of gap is generated between the upper case 1 and the opening 51 corresponding to the upper case 1, but the connector spacer 58 disposed between the control board 5 and the upper case 1 surrounds the connector 4 on the control board 5 side around the upper case. Since it is surrounded along the periphery of one opening 51, it is possible to prevent an illegal act on the ROM or the like on the control board 5 side through the gap.

  On the other hand, when the upper case 1 is opened for inspection or the like from the coupled state of the substrate case A, in each fastener 14 used for coupling, the two coupling portions that couple the head portion 23 and the base end of the pin portion 22 respectively. The upper case 1 can be opened by cutting each of the fragile portions 24a of 24 and 24 with a nipper or the like. In this case, as shown in FIG. 6B and FIG. 7B, the pin portion 22 of each fastener 14 has the first engagement claw 21 as the locking hole 37 of the lower case 2 or the mounting plate 6. , 42 is engaged in a retaining state and remains on the lower case 2 side, while the head 23 of each fastener 14 has a second engaging claw 27 for coupling the coupling portion 13 of the upper case 1. Since it remains engaged with the recess 32 and remains in the coupling portion 13, it is possible to easily determine the opening of the substrate case A, and to effectively prevent fraud. Note that the pin portions 22 of the fasteners 14 remaining on the lower case 2 side have hooks 26 and 26 at their base ends engaged with the locking holes 37 and 42 of the lower case 2 or the mounting plate 6. It does not fall out of the positions of the blind holes 37 and 42.

  In addition, the cutting portion of each fastener 14 is a particularly fragile fragile portion 24a of the connecting portion 24 that connects the base end of the pin portion 22 and the head portion 23. Therefore, the cutting is easily and quickly performed. be able to. Further, since the cut portion is inside the head portion 23 that remains fitted in the joint portion 13 of the upper case 1, the cut portion is used when the upper case 1 and the lower case 2 are joined again. The operator's hand is not caught and injured.

  Furthermore, since each said fastener 14 consists of nonelectroconductive synthetic resin, even if each fastener 14 is a complicated shape, the shaping | molding can be performed easily, and also the pin part cut | disconnected and separated from the fastener 14 temporarily. Even if 22 or the like is mistakenly dropped on the control board 5 in the case body 3 and left unattended, no leakage or the like occurs and prevention can be achieved.

  FIG. 13 shows a board case coupling structure for gaming machines according to the second embodiment of the present invention. Although not shown in its entirety, the substrate case includes an upper case 101 and a lower case 102 as in the case of the first embodiment, and a mounting plate 103 is fixed to the lower case 101. A plurality of connecting portions 104 for connecting the upper case 101 and the lower case 102 are formed at the peripheral portion of the upper case 101, and at a time of one connection, at least one of the connecting portions 104 is separated by a fastener 105. It is supposed to be combined impossible.

The fastener 105 is made of non-conductive synthetic resin such as acrylic resin, and as shown in FIG. 14, a bifurcated pin portion 112 having a notch groove 111 extending from the tip to the center portion, A cylindrical head portion 113 that surrounds the outer periphery of the base end side of the pin portion 112 with a predetermined gap therebetween, and the head portion 113 and the base end of the pin portion 112 at two locations that sandwich the axis of the pin portion 112. It has the connection part 114 and 114 which each connects. A pair of first engaging claws 115, 115 projecting outward are formed on both sides of the notch groove 111 at the tip of the pin portion 112, and each of the first engaging claws 115 is As shown in detail in FIG. 15, an engagement surface 115 a that engages with a rear peripheral edge of a locking hole 126 described later is formed so as to intersect the outer peripheral surface of the pin portion 112 at an acute angle θ. On the outer peripheral surface of the head 113, there are formed second engaging claws 117 at the center portion in the axial direction and at two positions sandwiching the axial line, respectively, and at the distal end side in the axial direction and in the circumferential direction. Are formed at two positions that are 90 degrees different from each of the second engaging claws 117, and each third engaging claw 118 has a notch groove formed on both the left and right sides thereof. 119 and 119 are elastically deformable. Each connecting portion 114 is narrow and fragile over the entire length, and in particular, has a fragile portion 114 a having a smaller width dimension than other portions in a portion near the head 113.

  On the other hand, the coupling portion 104 is formed in a cylindrical shape having a bottom portion 104a into which the head portion 113 of the fastener 105 can be fitted, and the depth dimension thereof is the length of the head portion 113 of the fastener 105 in the axial direction. It is set larger than the dimension. When the coupling portion 104 is in a coupling state in which the head 113 of the fastener 105 is deeply fitted into the coupling portion 104 to a position where it contacts the bottom portion 104a at two locations across the axis on the inner circumferential surface of the coupling portion 104, The coupling engagement recesses 121 with which the two engagement claws 117 are engaged are formed, and the fasteners 105 are respectively provided at two locations whose phases are 90 degrees different from the engagement engagement recesses 121 in the circumferential direction. Locking recesses (not shown) for temporary fixing with which the third engaging claws 118 are engaged when the head 113 is in a temporarily fixed state in which the head 113 is shallowly fitted in the coupling portion 104 are formed. Further, a through hole 122 through which the pin portion 112 of the fastener 105 passes is provided in the bottom portion 104a of the coupling portion 104 in the coupled state.

  The lower case 102 has a fastening receiving portion 125 corresponding to the coupling portion 104 of the upper case 101. When the head 113 of the fastener 105 is deeply fitted into the coupling portion 104, the first engagement claw 115 at the tip of the pin portion 112 engages with the fastening receiving portion 125 in a retaining state. A locking hole 126 is provided, and a conical locking surface 127 that is inclined corresponding to the engagement surface 115 a of the first engagement claw 115 is formed on the rear peripheral edge of the locking hole 126. Has been.

  And in the said 2nd Embodiment, when the head 113 of the fastener 105 fits deeply to the position which contacts the bottom part 104a in the connection part 104 of the upper case 101, the pin part 112 of the fastener 105 is shown. The first engaging claws 115 at the front end 115 engage with the locking holes 126 of the fastening receiving portion 125 of the lower case 102 in a state of retaining, and the two second engagements of the head 113 of the fastener 105 The claws 117 and 117 are respectively coupled to the coupling locking recesses 121 and 121 on the inner peripheral surface of the coupling portion 104, whereby the coupling portion 104 of the upper case 101 and the fastening receiving portion 125 of the lower case 102 are separated by the fastener 105. Combined impossible.

  Moreover, in this coupled state, each of the first engaging claws 115 is formed so that its engaging surface 115a intersects the outer peripheral surface of the pin portion 112 at an acute angle θ, while Since a locking surface 127 that is inclined corresponding to the engagement surface 115 a is formed on the back side peripheral edge portion, the engagement force between the first engagement claw 115 and the peripheral edge portion of the locking hole 126, and therefore fastening The coupling force by the tool 105 can be increased, and illegal acts can be reliably prevented. In particular, when the connection portion 104 of the upper case 101 and the fastening receiving portion 125 of the lower case 102 are to be forcibly separated from each other in this connection state, the first engagement claw 115 is removed before it comes out of the locking hole 126. When the weakened portion 114a of each connecting portion 114 of the fastener 105 is set to break, even if the upper and lower cases 101 and 102 are forcibly separated, the connecting portions 114 of the fastener 105 are nippered. Since the trace of opening remains like the case where it cut | disconnects by etc., fraud can be prevented more reliably.

  Note that the configurations of the fastener 105 and the coupling portion 104 of the upper case 101 are the same as those in the first embodiment, and therefore, due to these configurations among the operations and effects of the first embodiment. Of course, the same thing can be exhibited.

  FIG. 16 and FIG. 17 show the coupling structures of the gaming machine substrate cases according to the third and fourth embodiments of the present invention, respectively. In both the embodiments, as in the case of the second embodiment, the coupling force between the upper case 101 and the lower case 102 by the fastener 105 is increased.

  That is, in the case of the third embodiment, each of the pair of first engaging claws 115 and 115 formed at the distal end portion of the pin portion 112 of the fastener 105 has a recess 131 on its engaging surface 115a. Yes. On the other hand, a pair of convex portions 132, 132 are formed on the back side peripheral portion of the locking hole 126 of the fastening receiving portion 125 of the lower case 102 corresponding to the concave portion 131.

  Further, in the case of the fourth embodiment, the pair of first engaging claws 115 and 115 formed at the distal end portion of the pin portion 112 of the fastener 105 are respectively in the same manner as in the second embodiment. The mating surface 115a is formed so as to intersect the outer peripheral surface of the pin portion 112 at an acute angle, and has a recess 141 on the proximal end side of the engaging surface 115a. On the other hand, a conical locking surface 142 that is inclined corresponding to the engaging surface 115 a of the first engaging claw 115 is formed on the rear peripheral edge of the locking hole 126 of the fastening receiving portion 125 of the lower case 102. A pair of convex portions 143 and 143 are formed corresponding to the concave portion 141. The other configurations of the third and fourth embodiments are the same as those of the second embodiment, and the same members are denoted by the same reference numerals and description thereof is omitted.

  And in the said 3rd and 4th embodiment, since the coupling | bonding force of the upper case 101 and the lower case 102 by the fastener 105 can be heightened similarly to the case of 2nd Embodiment, fraudulent act Prevention can be achieved reliably. In particular, in the fourth embodiment, the contact area when the first engaging claw 115 of the fastener 105 and the rear peripheral edge of the locking hole 126 of the fastening receiving portion 125 of the lower case 102 are engaged is increased. Therefore, it is effective in increasing the coupling force by the fastener 105.

  The present invention is not limited to the first to fourth embodiments, but includes various other embodiments. For example, in the first embodiment, the fastener 14 that is not used for the connection between the upper case 1 and the lower case 2 is also configured to be held in the temporarily fixed state by the respective connecting portions 13 of the upper case 1. In this case, there is a possibility that the fastener 14 that is not used for the coupling is erroneously pushed into the coupling portion 13 and coupled. Therefore, in the present invention, for example, as shown in FIGS. 18 and 19, a C-shaped holding portion 151 extending inward is formed on the side wall portion 1 a of the upper case 1, and the holding portion 151 is not used. The head 23 of the fastener 14 may be clamped. Even in this case, when the upper case 1 and the lower case 2 are coupled, the fastener 14 can be immediately removed from the holding portion 151 and used, which is convenient in storing the fastener 14.

  Further, in each of the above embodiments, the first engaging claws 21 and 115 projecting outward are formed at the tip portions of the pin portions 22 and 112 of the fasteners 14 and 105, respectively. As shown in FIGS. 20 and 21, a pair of first engaging claws 161 and 161 projecting inward facing the notch groove 111 are provided at the tip of the bifurcated pin portion 112 of the fastener 106. In addition, a pair of arc-shaped locking holes 162 and 162 for engaging the both engaging claws 161 and 161 in a retaining state may be provided in the lower case 102 or the mounting plate. Further, the first engaging claws 161 protrude only inward, but as shown by broken lines in FIG. 20, the engaging claws 161 are engaged outwardly or inwardly with respect to the respective locking holes 162. You may make it a bowl shape to match.

  Furthermore, in each of the above embodiments, the heads 23 and 113 of the fasteners 14 and 105 are formed in a cylindrical shape, but the present invention is not limited to a cylindrical shape and is formed in a frame shape such as a square or a triangle. Alternatively, the side surface may be partially cut out. In short, it is only necessary to surround the outer peripheries of the pin portions 22 and 112 of the fasteners 14 and 105 with the head portions 23 and 113. Among them, in particular, if the head is formed in a polygonal frame shape, and the locking hole is also formed in the same polygonal shape, and the rotation of the head in the inserted state is restricted to make it difficult to twist, the fastener can be removed. Becomes more difficult. The first engaging claws 21 and 115 formed on the pin portions 22 and 112 and the second engaging claws 27 and 117 formed on the head portions 23 and 113 are limited to the number and shape as in the above embodiments. Of course not. In particular, the second engaging claws 27 and 117 may be omitted depending on circumstances.

  In addition, in the first embodiment, a plurality of connecting portions 13, 13,... Are formed on one short side of the four sides of the upper case 1 constituting the rectangular box-shaped case body 3 together with the lower case 2. However, the present invention is not limited to this. Of the four sides of the upper case 1, a plurality of connecting portions are provided on each of three sides including two short sides or one long side facing each other. When forming, the mounting plate 6 is omitted and only the upper case 1 and the lower case 2 are formed, or the upper case 1 is separated into an upper lid portion and a side wall portion as disclosed in Patent Document 1, etc. The same can be applied.

It is a perspective view of the closed state of the substrate case for gaming machines according to the first embodiment of the present invention. It is a disassembled perspective view of the said substrate case. A fastener is shown, (a) is a top view, (b) is a front view, (c) is a perspective view. It is an enlarged view of M part of FIG. It is sectional drawing in the XX line of FIG. (A) is sectional drawing which shows the combined state of the upper and lower cases in the YY line | wire of FIG. 4, (b) is sectional drawing which shows the isolation | separation state of an upper and lower case. (A) is sectional drawing which shows the coupling | bonding state of the upper and lower cases in the ZZ line | wire of FIG. 1, (b) is sectional drawing which shows the isolation | separation state of an upper and lower case. It is an expanded sectional view in the NN line of FIG. It is a perspective view of a connector space. (A) is a top view of connector space, (b) is the front view. It is an expanded sectional view in the PP line of FIG. It is the arrow view seen from the Q direction of FIG. It is sectional drawing which shows the joint structure of the board | substrate case for game machines which concerns on 2nd Embodiment. It is a FIG. 3 equivalent view of the fastener used for the said coupling structure. It is an expanded sectional view near the 1st engagement claw of the above-mentioned fastener. FIG. 14 is a view corresponding to FIG. 13 showing a third embodiment. FIG. 14 is a diagram corresponding to FIG. 13 showing a fourth embodiment. It is a partial cutaway side view of the holding | maintenance part vicinity of the upper case which shows another embodiment. It is the arrow line view seen along the RR line of FIG. It is a front view which shows another form of a fastener. It is a top view which shows another form of a locking hole.

Explanation of symbols

A Game machine board case 1,101 Upper case 2,102 Lower case 3 Case body (accommodating space)
4 Connector 5 Control board 6,103 Mounting plate 13,104 Coupling portion 13a, 104a Bottom portion 14, 105, 106 Fastener 21, 115, 161 First engagement claw 22, 112 Pin portion 23, 113 Head portion 24, 114 Connecting portion 24a, 114a Fragile portion 27, 117 Second engaging claw 28, 118 Third engaging claw 31 Temporary locking locking recess 32, 121 Coupling locking recess 33, 122 Through hole 35, 36, 125 Fastening receiving portion 37, 42, 126, 162 Locking hole 51 Opening portion 58 Connector space 115a Engaging surface 127, 142 Locking surface 131, 141 Recess 132, 143 Protruding portion 151 Holding portion

Claims (9)

A storage space for storing the control board is configured by the upper case and the lower case, and the upper case and the lower case or a plurality of mounting plates fixed to the lower case are coupled to the peripheral portion of the upper case. In the board case for a gaming machine configured so that the coupling portion is formed, and at the time of one coupling, at least one of the coupling portions is separably coupled by a fastener.
The fastener includes a pin portion having a first engaging claw at the tip, a cylindrical or frame-shaped head that surrounds the outer periphery of the base end side of the pin portion with a predetermined gap therebetween, and the head And a connecting portion that connects the base end of the pin portion, and a second engaging claw is formed on the outer peripheral surface of the head portion,
Each of the coupling parts is formed in a shape having a bottom part into which the head part of the fastener can be fitted, and when the head part of the fastener is fitted into the coupling part on the inner peripheral surface of each coupling part A locking recess for engaging the second engaging claw is formed, and a through-hole through which the pin portion passes when the head of the fastener is fitted in the coupling portion is formed at the bottom of each coupling portion. Provided,
The lower case or the mounting plate is provided with a locking hole in which the first engaging claw at the tip of the pin portion engages in a retaining state when the head portion of the fastener is fitted in the coupling portion. A board case for a gaming machine characterized by that. A storage space for storing the control board is configured by the upper case and the lower case, and the upper case and the lower case or a plurality of mounting plates fixed to the lower case are coupled to the peripheral portion of the upper case. In the board case for a gaming machine configured so that the coupling portion is formed, and at the time of one coupling, at least one of the coupling portions is separably coupled by a fastener.
The fastener includes a pin portion having a first engaging claw at the tip, a cylindrical or frame-shaped head that surrounds the outer periphery of the base end side of the pin portion with a predetermined gap therebetween, and the head And a connecting part that connects the base end of the pin part,
Each coupling part is formed in a shape having a bottom part into which the head part of the fastener can be fitted, and the bottom part of each coupling part is provided with the pin when the head part of the fastener is fitted into the coupling part. A through-hole through which the part passes,
The lower case or the mounting plate is provided with a locking hole in which the first engaging claw at the tip of the pin portion engages in a retaining state when the head portion of the fastener is fitted in the coupling portion. A board case for a gaming machine characterized by that.   A third engagement claw is formed on the outer peripheral surface of the head of the fastener at a position different from the second engagement claw in the circumferential direction and at a position closer to the tip than the second engagement claw in the axial direction. On the other hand, a locking recess is formed on the inner peripheral surface of each of the coupling portions. The locking recess engages with the third engagement claw when the head of the fastener is in a temporarily fixed state where the head of the fastener is shallowly fitted in the coupling portion. The board case for a gaming machine according to claim 1.   The holding | maintenance part which clamps the head part of the said fastener which can be used for the coupling | bonding with an upper case, a lower case, or a mounting plate and hold | maintains a fastener is formed in the inner surface of the said upper case. Item 4. A gaming machine board case according to any one of Items 3 to 3.   The gaming machine board case according to any one of claims 1 to 4, wherein the fastener is made of a non-conductive synthetic resin.   The upper case has an opening corresponding to the connector mounted on the control board, and the periphery of the connector is surrounded along the periphery of the opening of the upper case between the control board and the upper case. The board case for a gaming machine according to any one of claims 1 to 5, wherein a connector spacer is disposed.   The first engaging claw is formed so that an engaging surface that engages with a peripheral portion of the locking hole intersects with an outer peripheral surface of the pin portion at an acute angle. The gaming machine substrate case according to any one of claims 1 to 6, wherein a locking surface that is inclined corresponding to the engaging surface is formed.   The first engaging claw has a concave portion on an engaging surface that engages with a peripheral portion of the locking hole, and a convex portion corresponding to the concave portion is formed on the peripheral portion of the locking hole. The board case for a gaming machine according to any one of claims 1 to 7. The connecting portion has a weak portion in part, and this weak portion is engaged in a state in which the head portion of the fastener is fitted in the coupling portion and the first engagement claw is prevented from coming off in the locking hole. 9. The board case for gaming machines according to claim 7 or 8, wherein the first case is set to be broken before the first case is pulled out of the locking hole when the upper case and the lower case are pulled apart.

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