JP4536768B2 - Board case and gaming machine - Google Patents

Description

  The present invention relates to a board case for storing an electronic circuit board, and a gaming machine such as a ball game machine or a revolving game machine including the board case.

  The technology (RFID (RadioFrequency IDentification)) for recognizing ID codes (IDentification Code) in a non-contact manner via radio waves is rapidly developing, and is now in practical use for railway and bus commuter passes and highway toll collection. ing. This technology is also used for the management of parts incorporated in industrial products, and promotes efficient and reliable management.

  For example, when manufacturing an industrial product in a factory or the like, first, various pieces of information (for example, information such as a manufacturing date, a shipping destination, a shipping date, a model name, a manufacturing number, and the number of reuses) related to the components constituting the industrial product are stored. A stored RFID tag (a recording medium capable of exchanging information without contact) is attached to a component. The components to which the RFID tag is attached are conveyed by a belt conveyor. A device such as a gate or an antenna incorporating a reading and writing device or a reading or writing device (hereinafter referred to as “reading / writing device”) is installed at a predetermined position in the transport path. A read / write device is a device that transmits radio waves to an RFID tag and reads or writes information in a non-contact manner. When a component passes through a device such as a gate or an antenna, the read / write device Data communication is performed with the RFID tag.

  Also, portable read / write devices are used in game stores and the like. This is something that the user can hold and operate, and by operating the read / write device toward the place where the RFID tag of the industrial product installed in the amusement store is equipped, Read and write information.

  When the information stored in the RFID tag is read by the read / write device, the read information is transferred to the host computer via the read / write device. When writing information to the RFID tag, the reading / writing device appropriately reads necessary information from the host computer and writes the read information to the RFID tag. In this way, various information related to the components of the industrial product is comprehensively managed by the host computer.

  However, when an information storage medium capable of exchanging information is attached to a board on which an electronic circuit such as a control board for controlling a gaming operation in a gaming machine is attached, a space for attaching the information storage medium to the board must be secured. Therefore, it has had a great influence on the layout of various circuit components mounted on the board.

  When a space for attaching the information storage medium to the substrate is secured and the information storage medium is directly attached to the substrate surface, data communication performed between the read / write device and the information storage medium is performed in a case for housing the substrate, Since this is performed with a case of a gaming machine incorporating the case in between, there is a problem that the communication distance between the information storage medium and the reading / writing device is increased. In addition to this, when a magnetic field or static electricity generated from an electronic circuit mounted on a substrate becomes a radio interference, and the radio wave transmitted from the read / write device to the information storage medium is a weak radio wave, the information storage medium In contrast, information could not be read / written reliably. On the contrary, when radio waves reach the information storage medium on the substrate, the radio waves become electrical noise, which may cause malfunction of the electronic circuit mounted on the substrate.

  The present invention has been made in consideration of the above circumstances, and an information storage medium in which various data for managing parts constituting a gaming machine including an electronic circuit board and a history of the parts is stored in an electronic circuit Installed so as not to affect the layout of various circuit components mounted on the board, and between the read / write device and the information storage medium regardless of the strength of radio waves transmitted from the read / write device. A board case for housing an electronic circuit board capable of reliably performing data communication and preventing electrical noise generation and electronic circuit malfunction during data communication, and the board case The purpose is to provide a game machine.

  The present invention relates to a substrate case that includes a case main body and a case lid that opens and closes a substrate storage recess formed in the case body, and stores a substrate on which an electronic circuit component is mounted in the substrate storage recess. A key having a shaft, a first key lock case that is provided on the case lid and into which the key is inserted, and a second key lock case that is provided on the case body and into which the key is inserted. A stopper provided at a base end portion of the shaft to abut against the first key lock case to restrict the insertion position of the shaft; an operation knob portion provided on the stopper; and a diameter smaller than that of the shaft. A cutting portion connecting the shaft and the stopper, an anti-rotation protrusion provided on the shaft, and a 90 ° position around the axis with respect to the anti-rotation protrusion provided at the base end portion of the shaft. Arranged An end-side locking projection, and a distal-side locking projection provided at a distal end portion of the shaft and disposed at the same position around the shaft with respect to the proximal-side locking projection; The first insertion opening into which the shaft is inserted, and the base end side engaging projection provided in the first insertion opening are engaged to prevent the shaft from being pulled out in the direction opposite to the insertion direction. A first locking claw, and a rotation prevention recess provided in the first insertion opening for guiding the rotation prevention projection in the insertion direction while preventing rotation of the key, and the second key lock case. The second insertion opening arranged on the same axis line as the first insertion opening when the case lid is closed, and the distal end side locking projection provided on the second insertion opening engages the shaft. A second locking claw that makes it impossible to be pulled out in the direction opposite to the insertion direction, and the case When the key is inserted into the first and second insertion openings with the lid closed, the proximal end side locking projection engages with the first locking claw and the distal end side locking The protrusion engages with the second locking claw, the key cannot be inserted / removed at a predetermined insertion position, and the case lid cannot be opened, while in this state, the operation knob portion is twisted to The case lid can be opened by cutting the cutting portion and separating the shaft into the stopper and the operation knob portion.

The proximal end side and the distal end side locking projections are provided in pairs with the shaft interposed therebetween, and these are formed in an inverted triangle shape and have inclined surfaces that go radially outward toward the proximal end of the shaft. ,
A pair of the first and second locking claws are provided so as to sandwich the center line of each insertion opening, and these extend in a direction that narrows toward the insertion direction of the shaft. Then, after the inclined surface of the base end side locking projection pushes the first locking pawl in the radial direction and elastically deforms the first locking pawl, the base end side locking projection is The front end side locking projection is engaged and the inclined surface of the front end side locking projection pushes the second locking claw in the radial direction to elastically deform the second locking claw, and then the front end side locking claw. It is preferable that the protrusion is engaged with the second locking claw.

  A gaming machine according to the present invention includes the above-described board case.

  According to the board case and the gaming machine of the present invention, the information storage medium is mounted so as not to contact the circuit components, and data communication can be performed between the information storage medium and the predetermined device. It becomes possible to accurately grasp information related to parts.

  FIG. 1 shows the appearance of a slot machine (rotating-type game machine) which is an embodiment of a game machine using the present invention. In the slot machine 10, four display windows 13 are provided on the front door 12 of the housing 11, and the first reel 14 a, the second reel 14 b, and the third reel are positioned at the back of each display window 13. 14c and the sub reel 15 are incorporated rotatably. As is well known, predetermined patterns including a plurality of types of winning patterns are arranged at a constant pitch on the outer periphery of the first to third reels 14a to 14c, and three reels per reel are displayed through the display window 13 when the reels are stopped. The pattern becomes observable. Thereby, for example, a total of five winning lines, for example, three horizontal lines and two diagonal lines, are formed by combining the patterns displayed for each reel one by one.

  The front door 12 includes an upper door 12a and a lower door 12b. The upper door 12a and the lower door 12b are each attached by a hinge 16, and can be rotated in the direction of an arrow M in the figure.

  In addition to various operation buttons such as a single bet button, a MAX bet button, and a payout button that are operated at the start of the game, a medal insertion slot 17 for inserting medals is provided at the upper part of the lower door 12b. . Since the functions of these operation buttons are well known, details thereof are omitted. Also, below these operation buttons, there are a first to first operations for stopping a push-type start lever 18 that is operated after a medal bet is placed and a reel that starts rotating by a push-down operation of the push-type start lever 18. Third stop buttons 19a to 19c are provided. Further, a medal tray 20 is provided at the lower portion of the lower door 12b, and a payout medal obtained when winning in the game is paid out to the medal tray 20 from the payout slot 21.

  As shown in FIG. 2, when the upper door 12 a is opened, a main board 24 that is a main control unit is disposed inside the housing 11. The main board 24 is stored in a main board storage case 25. The reel unit 26 is attached to a support frame 27, and the support frame 27 is detachably mounted inside the housing 11.

  A main board storage case 25 that houses a main board 24 for generating a basic operation of the game in the slot machine 10 and controlling reel rotation and the like is assembled to the inner wall on the back side of the housing 11.

  As shown in FIG. 3, the main board storage case 25 is roughly composed of a case body 25a and a lid 25b. The lid 25b is attached to the case body 25a by a hinge 29, and can be rotated as shown in FIG. A substrate housing recess 30 is formed in the case main body 25a, and various circuits such as a CPU (Central Processing Unit) 31 and a ROM (Read Only Memory) 32 storing a game operation program of the slot machine 10 are formed in the substrate storing recess 30. The main board 24 on which the components are mounted is stored and fixed. As shown in FIG. 3, the main board 24 is sealed in the case body 25a by closing the lid 25b. Both the case body 25a and the lid 25b are formed of a synthetic resin such as a light-transmitting ABS resin (acrylonitrile-butadiene-styrene resin).

  As shown in FIG. 3, the case body 25a is provided with an RFID tag 35 (information storage medium). The RFID tag 35 includes an IC chip 36 (integrated circuit) and a disc-shaped transmission / reception antenna connected to the IC chip 36 via a copper wire 37, or a transmission / reception antenna 38 composed of either a transmission or reception antenna. I have. The transmission / reception antenna 38 accumulates radio waves received from an RFID reader / writer 39 (predetermined device) (hereinafter, “reader / writer” is described as “R / W”) as electric power by electromagnetic induction, and uses this as energy for IC The chip 36 is operated.

  In the IC chip 36, a memory (not shown) that can store various information related to the main board 24 or a member to which the main board 24 is attached, such as a manufacturing date, a shipping date, a shipping destination, a model name, a model number, and the number of reuses. And a communication circuit (not shown) that communicates with the RFID R / W 39 via the transmission / reception antenna 38. The RFID R / W 39 is provided with an antenna 39a that transmits and receives radio waves to and from the RFID tag 35 or a host computer (management device) (not shown).

  The various types of information are collectively managed by a host computer. The RFID R / W 39 appropriately reads update information of the various types of information from the host computer, and writes and records the read information in the memory of the IC chip 36, or is recorded in the memory of the IC chip 36. Read at least one of the information. Therefore, the update information of the main board 24 can be confirmed as appropriate. The read information is temporarily stored in a memory (not shown) in the RFID R / W 39, transferred to the host computer via the data transfer cable 40 or wireless communication, etc., and inspected and managed.

  As shown in FIGS. 3 to 5, an RFID mounting recess 41 is formed on the upper surface of the case body 25 a. The RFID tag 35 is fixed to an attachment plate 42 made of a substantially rectangular plastic plate with an industrial adhesive or a double-sided adhesive tape so that the RFID tag 35 can be placed inside the RFID mounting recess 41. A plurality of thin plastic rod-like ribs 42 a are formed on the side surface of the mounting plate 42, and the ribs 42 a are welded to the inner wall of the RFID mounting recess 41. The size and number of ribs 42a may be determined as appropriate. Further, the attachment plate 42 is attached to the case main body 25a by welding the rib 42a to the inner wall of the RFID attachment recess 41, but the attachment method is not limited to this, and the RFID attachment recess 41, the attachment plate 42 and the rib 42a may be formed by integral molding with the case body 25a.

  When the mounting plate 42 attached to the inner wall of the RFID mounting recess 41 is removed in this manner, as shown in FIG. 5, the rib 42a is broken by applying a force from the outside to the mounting plate 42 or the rib 42a. Thus, the mounting plate 42 can be easily removed. When the mounting plate 42 is removed, the RFID tag 35 is also removed together. The RFID tag 35 thus removed is discarded or used again after being subjected to processing such as rewriting stored information. The case body 25a from which the RFID tag 35 has been removed and separated is discarded or crushed into pieces, and then dissolved and reused.

  As shown in FIG. 3, the key 43 (sealing member) is provided to lock the lid 25b to the case body 25a. As shown in FIGS. 3 and 6, the key 43 has a cylindrical shaft 44 provided with an engaging portion 45, a cutting portion 46, a stopper 47, and an operation knob portion 48, and is made of synthetic resin such as ABS resin. It is molded with. The engaging portion 45 is provided with a tapered first locking projection 45a, second locking projection 45b, and rotation preventing projection 45c. The first and second locking projections 45a and 45b are provided on the upper and lower sides of the shaft 44, respectively, and the rotation preventing projection 45c is 90 around the axial direction with respect to the first and second locking projections 45a and 45b. ° Provided in a rotated position. The cutting portion 46 is a portion that is cut when an external force is applied to the key 43 after engagement, and has a smaller diameter than the shaft 44. The operation knob portion 48 is a knob for applying an external force to the key 43 described above.

  A first key lock case 49 is attached to the lid 25b, and a second key lock case 50 is attached to the case main body 25a. The screws are fastened by screws (not shown) so that they cannot be detached from the back side. The first key lock case 49 includes a substantially cylindrical main body 51 and an attachment flange 52 for attachment to the lid 25b. The main body 51 is formed with an insertion opening 51a for inserting a key 43. . Inside the main body 51, there are a pair of locking claws 51b that engage with the second locking projection 45b when the key 43 is inserted, and an anti-rotation recess 51c that engages with the rotation prevention projection 45c and prevents its rotation. Each is provided. The locking claw 51b is formed in a shape that is elastically deformed by movement in the insertion direction due to contact of the first and second locking protrusions 45a and 45b. The mounting flange 52 is provided with a screw tightening hole 52a for tightening a screw so that it cannot be attached to and detached from the lid 25b.

  The second key lock case 50 includes a substantially cylindrical main body 53 and an attachment flange 54 for attachment to the case main body 25a. The main body 53 is formed with an insertion opening 53a for inserting the key 43. Yes. A pair of locking claws 53b that engage with the first locking protrusion 45a when the key 43 is inserted are provided inside the main body 53. The locking claw 53b is formed in a shape that is elastically deformed by movement in the insertion direction due to contact of the first locking protrusion 45a. The mounting flange portion 54 is provided with a screw tightening hole 54a for tightening a screw so that it cannot be attached to and detached from the case body 25a.

  With this configuration, as shown in FIGS. 6 and 7, when the engaging portion 45 is inserted into the main body 51 of the first key lock case 49, the second locking protrusion 45 b is locked. The anti-rotation projection 45c is engaged with the claw 51b and guided into the main body 51 by the anti-rotation recess 51c, and its rotation is prevented and positioned. Further, when the first locking projection 45a of the engaging portion 45 of the key 43 is inserted into the body 53 of the second key lock case 50, the first locking projection 45a engages with the locking claw 53b. The stopper 47 is brought into a locked state where it cannot be inserted and removed. As a result, the lid 25b is locked to the case body 25a so that it cannot be opened and closed, and the main substrate 24 is disposed in a closed space by the main substrate storage case 25 and the substrate storage recess 30.

  When releasing the lock, first, the operation knob portion 48 of the key 43 is grasped and rotated. As shown in FIG. 8, when the operation knob portion 48 is rotated, the cutting portion 46 is twisted and then cut, and the operation knob portion 48 and the engagement portion 45 are separated, whereby the engagement portion 45 can be inserted and removed. become able to. As a result, the lid 25b and the case body 25a are unlocked and can be opened and closed. Then, as shown in FIG. 9, after the key 43 is cut, the lid 25b is removed. At this time, the cut key 43 is left inside the main body 53 of the second key lock case 50. When the lid 25b is removed, the first key lock case 49 attached to the lid 25b is also removed, the rotation prevention by the rotation prevention recess 51c is released, and the key 43 can be rotated. Therefore, as shown in FIG. 10, the key 43 is rotated by 90 ° about the axial direction to release the engagement between the first locking projection 45a and the locking claw 53b. The key 43 is removed from the second key lock case 50 in the rotated state.

  The operation of the slot machine 10 configured as described above will be described. When assembling the slot machine 10, as shown in FIG. 3, the RFID mounting recess 41 is formed in the case body 25 a of the main board storage case 25 attached to the housing 11 or the reel unit 26. The RFID tag 35 is attached to the substantially rectangular attachment plate 42 having the ribs 42a formed around the rib 42a of the attachment plate 42 so that the RFID tag 35 is arranged inside the RFID attachment recess 41. It welds to 41 inner wall. After the RFID tag 35 is thus attached to the main board storage case 25, as shown in FIG. 4, the main board 24 is attached to the board storage recess 30 of the case body 25a, and the lid 25b is attached by the key 43 to the case body. The main board 24 is sealed in the main board storage case 25.

  Further, when the case main body 25a of the main board storage case 25 is used for another purpose or is used after being reprocessed into another form, the rib 42a of the mounting plate 42 is externally provided as shown in FIG. The RFID tag 35 is separated from the main board storage case 25 together with the mounting plate 42 by applying force. In addition, since the rib 42a is formed in the shape of a thin rod, it can be easily broken only by applying a certain external force. Since the RFID tag 35 and the main substrate storage case 25 are thus separated, each can be reused.

  In addition, by attaching the RFID tag 35 to the inside of the RFID mounting recess 41 of the main board storage case 25, the RFID tag 35 and the RFID R / Data communication can be performed with W39. Furthermore, since the communication distance between the RFID tag 35 and the RFID R / W 39 is shortened compared to the case where the RFID tag 35 is directly attached to the substrate surface, even if the radio wave transmitted from the RFID R / W 39 is weak, The RFID R / W 39 and the RFID tag 35 can be reliably communicated with each other. In addition, electrical noise on the main board 24 that may occur during communication can be prevented, and malfunction of electronic circuits on the main board 24 induced by radio waves can also be prevented.

  When the main board 24 is taken out from the main board storage case 25, the main board 24 cannot be taken out unless a predetermined portion of the key 43 is destroyed. Therefore, it is easy to determine whether or not the main board storage case 25 has been opened. This makes it possible to prevent a third party from improperly crafting the main board 24.

  In the above embodiment, the RFID tag 35 is attached to the case body 25a so as to be cut off. However, the RFID tag 35 may be attached directly to the wall surface constituting the lid 25b or via a predetermined attachment member. Further, the RFID tag 35 may be attached to the back surface of the attachment plate 42. Thereby, since the RFID tag 35 is not exposed to the outside, the RFID tag 35 can be prevented from being broken or damaged.

  In the above embodiment, the main board storage case 25 is sealed using the key 43 to prevent fraudulent acts on the main board 24, but the RFID tag 35 is attached to the back side of the lid, The RFID tag 35 can be sealed together with the main board 24 by the key 43 by being arranged in the closed space formed by the main board storage case 25 and the board storage recess 30 together with the board 24. The main board 24 and the RFID tag 35 can be protected at the same time.

  In the above embodiment, the key 43 is used as the sealing member. However, the present invention is not limited to this, and a sealing member or the like may be used as the sealing member. When the main board storage case 25 is opened, the trace remains. Any form of sealing member may be used.

  In the above embodiment, the lid 25b is locked to the case body 25a using the key 43. However, the present invention is not limited to this. Various known fixing methods such as fixing with an agent may be used as appropriate.

  In the above embodiment, the RFID tag 35 stores various information related to the main board 24 or a member to which the main board 24 is attached. However, the stored information is not limited to this, and the slot machine 10 is configured. Information related to various parts may be stored.

  Next, another embodiment of the present invention will be described with reference to FIGS. In addition, about the member which has the same structure and effect | action as the said embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted. As shown in FIGS. 11 and 12, a substantially cylindrical RFID tag storage case 55 is provided on the lower surface of the lid 25 b of the main substrate storage case 25. The RFID tag storage case 55 includes a bottomed cylindrical case main body 56 and a lid 57 that closes the opening 56a of the case main body 56, and these members are both composed of a flexible ABS resin or the like. Molded with resin.

  The case main body 56 includes a disk-shaped bottom wall 58 and a side wall 59 formed along the outer periphery of the bottom wall 58, and a recess 60 is formed by the bottom wall 58 and the side wall 59. The RFID tag 35 and the coil spring 61 are accommodated in the recess 60. The bottom wall 58 is fixed to the lower surface U of the lid 25b of the main substrate storage case 25, and an annular positioning portion 58a that protrudes downward from the bottom wall 58 is formed. The RFID tag 35 is disposed on the positioning portion 58a. Further, a continuous convex ridge 59 a is formed on the outer periphery of the side wall 59.

  A lid 57 of the RFID tag storage case 55 is formed in a bottomed cylindrical shape, and includes a disc-shaped bottom wall 62 and a side wall 63 formed along the outer periphery of the bottom wall 62. The inner diameter of the opening 57 a of the lid 57 is slightly larger than the outer diameter of the opening 56 a of the case body 56. As shown in FIG. 12, a continuous concave groove 63 a that engages with the ridge 59 a of the case body 56 is formed on the inner periphery of the side wall 63.

  One end of the coil spring 61 comes into contact with the one surface K below the RFID tag 35 and the other end is fixed to the inner surface of the bottom wall 62 of the lid 57. The RFID tag 35 is disposed on the positioning portion 58a of the case main body 56, and the ridge 59a of the case main body 56 is engaged with the groove 63a in order to fit the lid 57 to the case main body 56. As a result, the RFID tag 35 and the coil spring 61 are enclosed in a closed space provided by the RFID tag storage case 55. The RFID tag 35 receives a biasing force due to the contact of one end of the coil spring 61 and is always in pressure contact with the bottom wall 58 of the case body 56 in the RFID tag storage case 55. The RFID tag storage case 55 including the case main body 56 and the lid 57 is sized or arranged so that the RFID tag storage case 55 is mounted on the main board 24 when the lid 25b of the main board storage case 25 is closed. It is designed to be disposed at an appropriate position so as not to come into contact with the circuit components that are present and to facilitate communication with the RFID R / W 39.

  By adopting such a configuration, as in the first embodiment, the RFID R / W 39 and the RFID tag 35 can be reliably communicated with each other on the main board 24 that may be induced during the communication. It is possible to prevent electrical noise and malfunction of electronic circuits. Further, since the case body 56 and the lid 57 are flexible, the bulge 59a and the groove 63a are fitted while being deformed by being pressed against each other. The RFID tag 35 can be easily attached and detached without being damaged. Even if a groove is formed at a predetermined position on the outer periphery of the side wall 59 of the case main body 56 and a ridge corresponding to the groove is formed on the inner periphery of the side wall 63 of the lid 57, the same operation and effect relating to attachment / detachment can be obtained. it can. Thus, the method of attaching and detaching the lid 57 to the case main body 56 may be determined as appropriate.

  In the above embodiment, the slot machine has been described, but the present invention can also be applied to a gaming machine such as a pachinko machine. FIG. 14 shows the appearance of the back side of the pachinko machine. In the main body base 71 of the pachinko machine 70, in addition to the main control circuit device 72 serving as a main board for performing the main control for operating the device provided in the pachinko machine 70 when playing a game, a ball launcher 73, A ball payout device 74 and the like are respectively assembled. These devices are electrically connected via a cable or a harness (not shown). The main control circuit device 72 is stored in a storage case 75 (substrate case). The RFID tag 35 is detachably attached to the storage case 75 on the back side of the mounting plate 42 in the same manner as the slot machine 10 described above. Note that the RFID tag 35 may be detachably attached to the storage case 75 as described in another embodiment.

  As shown in FIG. 15, the storage case 75 is preferably attached to a game board unit 76 that can be attached to and detached from the main body base 71 of the pachinko machine 70. The game board unit 76 includes an exchangeable game ball guide rail frame 77, a game board 78, and a support 79 attached to the back of the game board 78 while supporting the storage case 75. And as information memorize | stored in the RFID tag 35 with which the said storage case 75 was mounted | worn, the board | substrate accommodated in the storage case 75 other than the component which comprises the game board unit 76 which can be attached or detached with respect to the said main body base 71. Circuit parts mounted on the liquid crystal unit (not shown) supported by the support body 79, a holding member 80 for holding the game board unit 76 and assembling it to the main body base 71, and a shaft on the holding member 80 The member name related to at least one of the supported door members 82 with glass 81, the history of the member (for example, manufacturing date, shipping date, shipping destination, collection date, number of reuses) or durability, material name, etc. Is preferably stored.

  In addition, the storage case 75 in which the RFID tag 35 is attached is attached to a part that can be attached to and detached from the main body base 71 without being limited to the game board unit 76 described above, and information related to the main control circuit device 72 is attached to the RFID tag 35. And information related to the detachable component may be stored. As a result, information on the main control circuit device 72 and information on the detachable parts can be simultaneously managed by a host computer. Further, when replacing the detachable parts to which the storage case 75 is attached, In addition, the information storage medium can be exchanged. In addition, the place where the RFID tag 35 is attached in the storage case 75 and the detachable part may be integrally configured. In this case, for example, at least the place where the RFID tag 35 is attached in the storage case 75 Then, the storage case 75 may be completed by integrally forming the removable part and incorporating the removable part into the main body base 71. The method of integrally configuring the place where the RFID tag 35 is attached in the storage case 75 and the detachable component is not limited to this, and either the storage case 75 or the detachable component is not limited thereto. If the storage case 75 and the detachable part are assembled when the storage case 75 and the detachable part are assembled into the main body base 71, the part of the other part is included. good. Of course, the entire storage case 75 may be formed integrally with the removable part.

  By adopting such a configuration, the pachinko machine 70 can obtain the same effects as the slot machine 10 described above. The present invention is not only applied to gaming machines such as slot machines and pachinko machines, but various electronic devices provided with a substrate case for storing a main substrate or an electronic circuit substrate other than the main substrate. Can also be applied.

It is a perspective view which shows the external appearance of the slot machine which implemented this invention. It is a perspective view which shows the state which open | released the upper door. It is a perspective view which shows the external appearance of a main board | substrate storage case. It is a perspective view which shows the state which the lid | cover of the main board | substrate storage case opened. It is a perspective view which shows the state which removed the RFID tag from the main board storage case. It is sectional drawing which shows the key at the time of inserting a key in a key lock case, and its vicinity. It is sectional drawing which shows a key when a key is inserted in a key lock case, and its vicinity. It is sectional drawing which shows a key when the key is cut | disconnected, and its vicinity. It is sectional drawing which shows the state of the key at the time of opening a lid | cover, and its vicinity. It is sectional drawing which shows a key at the time of rotating a key 90 degree | times and making it the state which can be extracted, and a key lock case. It is a perspective view which shows the structure of the RFID tag storage case of another embodiment in this invention. It is sectional drawing which shows the structure of a RFID tag storage case. It is sectional drawing which shows the aspect of the RFID tag storage case at the time of enclosing an RFID tag and a coil spring in an RFID tag storage case. It is a perspective view which shows the external appearance of the back side of the pachinko machine to which this invention is applied. It is a disassembled perspective view of a pachinko machine.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Slot machine 11 Housing 24 Main board 25 Main board storage case 35 RFID tag 36 IC chip 38 Transmission / reception antenna 39 RFID reader / writer 42 Mounting plate 42a Rib 43 Key 55 RFID tag storage case 59a Raised 63a Groove

Claims (3)

A substrate case comprising a case body and a case lid that opens and closes a substrate housing recess formed in the case body, wherein the board on which the electronic circuit component is mounted is housed in the substrate housing recess,
A key having a cylindrical axis;
A first key lock case provided on the case lid and into which the key is inserted;
A second key lock case provided in the case body and into which the key is inserted,
The key is provided at a base end portion of the shaft and is in contact with the first key lock case to restrict the insertion position of the shaft; an operation knob portion provided on the stopper; and a key thinner than the shaft. A cutting portion that connects the shaft and the stopper with a diameter, an anti-rotation protrusion provided on the shaft, and a 90 ° position about the axis with respect to the anti-rotation protrusion provided at a base end portion of the shaft A proximal end side locking projection, and a distal end side locking projection provided at the distal end of the shaft and disposed at the same position with respect to the proximal side locking projection around the shaft. ,
The first key lock case includes a first insertion opening into which the shaft is inserted, and the first insertion opening is provided in the first insertion opening and engages with the proximal end side locking protrusion so that the shaft is in a direction opposite to the insertion direction. A first locking claw that makes it impossible to be pulled out, and an anti-rotation recess that is provided in the first insertion opening and guides the anti-rotation protrusion in the insertion direction while preventing rotation of the key,
The second key lock case includes a second insertion opening arranged on the same axis line as the first insertion opening when the case lid is closed, and a second insertion opening provided on the distal end side locking projection. A second locking claw that engages and disables the shaft from being extracted in a direction opposite to the insertion direction;
When the key is inserted into the first and second insertion openings with the case lid closed, the proximal end side locking projection engages with the first locking claw, and the distal side The locking projection engages with the second locking claw, the key cannot be inserted and removed at a predetermined insertion position, and the case lid cannot be opened,
On the other hand, in this state, the case lid can be opened by twisting the operation knob portion to cut the cut portion and separating the cut portion into the shaft, the stopper, and the operation knob portion. Case. The base end side and the front end side locking projections are provided in pairs with the shaft interposed therebetween, and these are formed in an inverted triangle shape and have inclined surfaces that go radially outward toward the base end of the shaft. And
The first and second locking claws are provided in pairs so as to sandwich the center line of each insertion opening, and these extend in a direction that narrows toward the insertion direction of the shaft,
When the key is inserted, the inclined surface of the base end side locking projection pushes the first locking pawl in the radial direction to elastically deform the first locking pawl, and then the base end side locking The protrusion engages with the first locking claw, and the inclined surface of the front-end locking protrusion pushes the second locking claw in the radial direction to elastically deform the second locking claw; The board case according to claim 1, wherein a front end side locking projection engages with the second locking claw.   A gaming machine comprising the substrate case according to claim 1.

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