JP5975052B2 - Game machine - Google Patents

Description

  The present invention relates to a gaming machine.

  As gaming machines, pachinko gaming machines, slot machines and the like are known. These gaming machines are provided with a control board on which electronic components such as a ROM (Central Processing Unit) and a ROM storing a control program related to the game are mounted, and a series of games are controlled by the control board. . In recent years, some CPUs and ROMs are integrated into a single chip and mounted on a control board.

  In this type of gaming machine, for example, for the purpose of obtaining illegal profits, for example, the control board is illegally removed and the ROM (the chip if the CPU or ROM is integrated into one chip) is replaced. Many fraudulent acts have been reported, such as changing the game contents or inputting an illegal electric signal from the outside to the control board via a lead wire or the like.

For this reason, various countermeasures against fraud are being studied. As an example of a fraud, as a fixing means for fixing a plurality of boxes structure body constituting the substrate boxes to each other that using special screw member rather than the usual screw member is known (e.g. Patent Document 1) .

By adopting a special screw member , the rotational force in the loosening direction cannot be transmitted to the shaft part, and the fastening state of the box components can be maintained, thereby preventing unauthorized opening of the box components. It has become a countermeasure. Note that such a special screw member can be applied to other than the mutual fastening of the box components, such as fastening between the board box and its installation parts.

JP 2000-157703 A

However , by forcibly transmitting the rotational force in the loosening direction to the shaft portion , the shaft portion is rotated in the loosening direction, and the fastening state between the box structural bodies is released.

  The present invention has been made in view of the above-described circumstances and the like, and provides a gaming machine using a screw member that can prevent the fastening by the screw member from being released after assembly work. It is for the purpose.

The present invention
A gaming machine in which a first member and a second member, which are gaming machine components, are fastened by screw members,
The screw member is
A shaft portion including a thread groove that is screw-coupled to at least one of the first member or the second member;
A head including a tool engaging portion with which a tool for rotating the shaft is engaged;
An extended portion extended in a direction orthogonal to the axial direction of the shaft portion;
With
The extension part is provided on the shaft part side of the head part and between the head part and the shaft part,
An accommodating portion for accommodating the head and the extension portion is provided,
The accommodating portion is formed in a cylindrical shape extending in the axial direction of the shaft portion , and covers the head portion and the extension portion from the outer periphery,
The screw member is screwed from the first member side,
The accommodating portion is provided together with the screw member in a state of integrally having a first restricting portion and a second restricting portion at a position separated in the axial direction,
The head and the extended portion are arranged in a region sandwiched between the first restricting portion and the second restricting portion,
With the movement of the counter-shaft-side of the head and the extended portion is restricted by the first restricting portion, movement restriction to the head and the shaft portion side of the extended portion by the second restricting portion Has been
The first member has an inclined surface that descends toward an area shielded by the head and the extension part ,
In the state where the first member and the second member are fastened by the screw member, a space is provided between the extension portion and the inclined surface .

  According to the present invention, in a gaming machine using a screw member, it is possible to prevent the fastening by the screw member from being released after assembly work.

The perspective view seen from the front which shows the composition of the pachinko machine in one embodiment. The disassembled perspective view which decomposes | disassembles and shows the main structures of a game machine main body. The front view which shows the structure of an inner frame. The front view which shows the structure of a game board. The rear view which shows the structure of an inner frame. The front view which shows the structure of a back pack unit. The perspective view which shows the structure of a main controller. The front view which shows the structure of a main controller. The disassembled perspective view which shows the structure of a main controller. (A) The side view which expands and shows a part of main controller, (b) AA sectional view taken on the line of Fig.10 (a). (A) Sectional drawing which shows the control location of the board | substrate box in this pachinko machine, (b) Sectional drawing which shows the control location of the board | substrate box for comparison. (A)-(c) Explanatory drawing for demonstrating the assembly | attachment operation | work of a front side structure and a back side structure. Sectional drawing which shows the structure of a back side coupling | bond region. The perspective view which shows the structure of a receiving member. (A) The front view which shows the structure of a cover member, (b) The perspective view which shows the structure of a cover member. (A)-(c) Explanatory drawing for demonstrating the operation | work in forming a back side coupling | bond region. (A) Sectional drawing of the main control device showing the joint location between the first front side coupling portion and the back side coupling portion, (b) Cross sectional view of the main control device showing the joint location between the second front side coupling portion and the back side coupling portion. FIG. 9 is a partial sectional view taken along line B-B in FIG. 8. (A)-(c) Explanatory drawing for demonstrating the flow of an operation | work in the case of making a front side coupling | bond part and a back side coupling | bond part into a joint state. (A)-(c) Explanatory drawing for demonstrating the flow of the operation | work in releasing the fixed state of a front side structure and a back side structure, (d), (e) A front side structure and a back side structure Explanatory drawing for demonstrating the work flow in the case of refixing. (A)-(e) Schematic which shows a fracture | rupture screw. (A)-(c) Schematic which shows the dimension of a fracture | rupture screw. (A) The DD sectional view taken on the line of FIG. 8 showing the case where the breaking screw is attached, (b) Explanatory drawing showing the case where the breaking screw is attached in (a). The enlarged view of FIG. The bottom view of a fracture | rupture screw and the top view of a cylindrical part. Explanatory drawing which shows the state which the screw | thread side uneven | corrugated | grooved part and contact part are contacting. Schematic which shows the manufacturing method of a fracture | rupture screw. Schematic which shows the method of attaching a holder to a fracture | rupture screw. The block diagram which shows the electrical constitution of a pachinko machine. Sectional drawing equivalent to FIG. 24 in 2nd Embodiment. Sectional drawing equivalent to FIG. 24 in 3rd Embodiment. Sectional drawing equivalent to FIG. 23 in 4th Embodiment. FIG. 33 is an enlarged view around a broken screw in FIG. 32. Explanatory drawing which shows the peripheral region of the bottom face of a cylindrical part. Explanatory drawing which shows the mode of engagement of a cylinder side ratchet tooth part and a screw side ratchet tooth part.

<First Embodiment>
Hereinafter, an embodiment of a pachinko gaming machine (hereinafter referred to as “pachinko machine”), which is a type of gaming machine, will be described in detail with reference to the drawings. FIG. 1 is a perspective view of the pachinko machine 10 viewed from the front, and FIG. 2 is an exploded perspective view of the gaming machine main body 12 in the pachinko machine 10. In FIG. 2, the configuration in the game area of the pachinko machine 10 is omitted for convenience.

  The pachinko machine 10 includes an outer frame 11 that forms an outer shell of the pachinko machine 10, and a gaming machine body 12 that is attached to the outer frame 11 so as to be pivotable forward (openable and closable). . In the pachinko machine 10, the outer frame 11 is not an essential configuration, and the outer frame 11 may be provided on the island facility of the game arcade.

  The outer frame 11 has a rectangular frame shape, the upper and lower frames are made of wood, and the left and right frames are made of metal such as aluminum. The pachinko machine 10 is installed in the game hall by attaching and fixing the outer frame 11 to the island facility. In addition, the material which forms the outer frame 11 is not limited to the above, and is arbitrary.

  A gaming machine body 12 is rotatably supported on one side of the outer frame 11. Specifically, as shown in FIG. 1, an upper support bracket 21 is fixed to a connecting portion between the upper frame portion and the left frame portion in the outer frame 11, and the lower frame portion and the left frame in the outer frame 11 are further fixed. A lower support metal fitting 22 is provided at a connection portion with the portion. The upper support bracket 21 and the lower support bracket 22 constitute a support mechanism, and the gaming machine body 12 is rotatably supported with respect to the outer frame 11 by the support mechanism.

  Further, as shown in FIG. 2, the gaming machine main body 12 is provided with a locking device 23 at its rotating tip, and when the gaming machine main body 12 is closed with respect to the outer frame 11, the gaming machine main body 12 is locked. The saddle member 24 of the device 23 is received by the saddle receiving portion provided on the inner side surface of the right frame portion of the outer frame 11, and the opening of the gaming machine main body 12 is prevented. On the other hand, the hook member 24 is received by the hook receiving portion of the outer frame 11 by performing the unlocking operation using the unlock key on the cylinder lock 25 provided exposed at the front surface of the pachinko machine 10. The state is released and the gaming machine body 12 can be released from the outer frame 11. The locking device 23 also has a function of locking an inner frame 13 and a front door frame 14 described later.

  The gaming machine main body 12 includes an inner frame 13 as a base body, a front door frame 14 disposed in front of the inner frame 13, and a back pack unit 15 disposed behind the inner frame 13. The inner frame 13 of the gaming machine main body 12 is supported so as to be rotatable (openable and closable) with respect to the outer frame 11. Specifically, the inner frame 13 can be rotated forward with the left side as the rotation base end side (opening / closing base end side) and the right side as the rotation front end side (opening / closing front end side) in front view.

  A front door frame 14 is supported by the inner frame 13 so as to be rotatable (openable and closable), and in the front view, the left side is a rotation base end side (opening / closing base end side) and the right side is a rotation front end side (opening / closing front end). Side) and can be rotated forward. Further, the back pack unit 15 is supported by the inner frame 13 so as to be rotatable (openable and closable), and in the front view, the left side is the rotation base end side (opening / closing base end side) and the right side is the rotation front end side ( It can be rotated backward as the opening / closing tip side.

  Next, the configuration of the front side of the gaming machine body 12 will be described. FIG. 3 is a front view of the inner frame 13.

  The inner frame 13 is mainly composed of a resin base 31 whose outer shape is substantially the same as that of the outer frame 11. A substantially elliptical window hole 32 is formed at the center of the resin base 31. A game board 33 is detachably attached to the resin base 31. The game board 33 is made of plywood, and the game area formed on the front surface of the game board 33 is exposed to the front side of the inner frame 13 through the window hole 32 of the resin base 31.

  Here, the structure of the game board 33 is demonstrated based on FIG. The game board 33 has a plurality of large and small openings penetrating in the front-rear direction by being subjected to router processing. Each opening is provided with a general winning port 34, a variable winning device 35, an operating port 36, a through gate 37, a variable display unit 38, and the like. A total of four general winning openings 34 are provided on each of the left and right sides. When a game ball enters the general winning opening 34, the variable winning device 35, and the operation opening 36, it is detected by a detection switch described later, and a predetermined number of winning balls are paid out based on the detection result. In addition, an out port 39 is provided at the lowermost part of the game board 33, and game balls that have not entered various winning ports etc. are discharged from the game area through the out port 39. The game board 33 is provided with a large number of nails 40 for distributing and adjusting the falling direction of the game balls as appropriate, and various members (functions) such as a windmill.

  The variable display unit 38 is provided with a symbol display device 41 for variably displaying symbols with a winning at the operation port 36 as a trigger. The variable display unit 38 is provided with a center frame 42 so as to surround the symbol display device 41. A first specific lamp portion 43 and a second specific lamp portion 44 are provided on the center frame 42. Reservation lamp portions 45 and 46 are provided at the lower and upper portions of the center frame 42, respectively. The lower holding lamp unit 45 corresponds to the symbol display device 41 and the first specific lamp unit 43, and the number of times that the game ball has passed through the operation port 36 is held up to four times, and the holding lamp unit 45 is turned on by The number of holds is displayed. The upper holding lamp unit 46 corresponds to the second specific lamp unit 44, and the number of times that the game ball has passed through the through gate 37 is held up to four times, and the number of holdings is displayed by lighting the holding lamp unit 46. It is like that.

  The symbol display device 41 is configured as a liquid crystal display device including a liquid crystal display, and the display content is controlled by the display control device. On the symbol display device 41, for example, symbols are displayed side by side on the left, middle and right, and these symbols are variably displayed as they are scrolled up and down. When a predetermined combination of symbols is stopped and displayed on a preset active line, a special gaming state (hereinafter referred to as a jackpot) occurs.

  In the first specific lamp unit 43, the emission color is switched in a predetermined order using a winning at the operation port 36 as a trigger, and if the display is stopped in a predetermined color, a big hit occurs. Further, in the second specific lamp unit 44, the emission color is switched in a predetermined order triggered by the passage of the game ball through the through gate 37, and when the stop color is displayed in a predetermined color, the operation port 36 is displayed. The accompanying electric accessory is opened for a predetermined time. The control of the first specific lamp unit 43 and the second specific lamp unit 44 is performed by a main controller described later.

  The variable winning device 35 is normally in a closed state in which a game ball cannot be won or difficult to win, and is switched to a predetermined open state in which a game ball is easy to win in the case of a big win. As an opening mode of the variable winning device 35, the variable winning device 35 is repeated with a predetermined time (for example, 30 seconds) or a predetermined number (for example, 10) of winnings as one round and a plurality of rounds (for example, 15 rounds) as an upper limit. What is opened is common. The drive control of the variable winning device 35 is performed by a main control device described later.

  An inner rail portion 47 and an outer rail portion 48 are attached to the game board 33, and a guide rail is constituted by the inner rail portion 47 and the outer rail portion 48, and a game launched from the game ball launching mechanism 50. A ball is guided to the upper part of the game area.

  As shown in FIG. 3, the game ball launching mechanism 50 is attached below the window hole 32 in the resin base 31. The game ball launching mechanism 50 includes an electromagnetic solenoid 51, a launching rail 52, and a ball feeding mechanism 53. When an electrical signal is input to the solenoid 51, the output shaft of the solenoid 51 moves in the expansion / contraction direction. Then, the game ball placed on the firing rail 52 is launched by the ball feed mechanism 53 toward the game area.

  A front door frame 14 is provided so as to cover the entire front side of the inner frame 13. As shown in FIG. 1 and the like, the front door frame 14 is formed with a window portion 55 so that almost the entire game area can be viewed from the front. The window portion 55 has a substantially elliptical shape, and a transparent glass 56 is fitted therein. Around the window 55, light emitting means such as various lamps are provided. In addition, at the upper left and upper right positions, speaker units are provided for outputting sound effects according to the gaming state.

  Below the window portion 55 in the front door frame 14, an upper bulging portion 57 and a lower bulging portion 58 that bulge to the near side are provided side by side. An upper plate 57a that opens upward is provided inside the upper bulge portion 57, and a lower plate 58a that also opens upward is provided inside the lower bulge portion 58. The upper plate 57a has a function of temporarily storing game balls paid out from a payout device described later and guiding them to a game ball launching mechanism described later while aligning them in a line. In addition, the lower tray 58a has a function of storing game balls that are surplus in the upper tray 57a.

  A handle device 59 is provided on the right side of the lower bulging portion 58 so as to protrude to the front side. By operating the handle device 59, a game ball is launched from the game ball launching mechanism.

  Next, the configuration on the back side of the gaming machine main body 12 will be described. FIG. 5 is a rear view of the inner frame 13, and FIG. 6 is a front view of the back pack unit 15.

  As shown in FIG. 5, a main controller unit 61 and an audio lamp controller unit 65 are mounted on the back surface of the inner frame 13 (game board 33).

  The main controller unit 61 has a synthetic resin mount, and the main controller 63 is mounted on the mount. The main control device 63 includes a main control board having a function (main control circuit) that controls the main control of the game and a function (power failure monitoring circuit) that monitors the power source. The specific configuration of the main controller 63 will be described later in detail.

  The sound lamp control device unit 65 includes a sound lamp control device 66 and a mounting base, and the sound lamp control device 66 is mounted on the mounting base. The sound lamp control device 66 includes a sound lamp control board for controlling sound and lamp display and a display control device (not shown) in accordance with an instruction from the main control device 63. The sound lamp control board is made of a transparent resin material or the like. The board box 68 is configured to be accommodated.

  As shown in FIG. 6, the back pack unit 15 includes a back pack 71, and a payout mechanism 72 and a control device assembly unit 73 are attached to the back pack 71. The back pack 71 is formed of a synthetic resin having transparency, and includes a base portion 74 to which the payout mechanism portion 72 and the like are attached, and a protective cover portion 75 that protrudes rearward from the pachinko machine 10 and has a substantially rectangular parallelepiped shape.

  The base portion 74 is provided with an external terminal plate 76 at the upper right portion thereof. The external terminal board 76 is provided with various output terminals, and various signals are output to the management control device on the game hall side through these output terminals. The base portion 74 is provided with a payout mechanism portion 72 so as to bypass the protective cover portion 75. That is, a tank 77 opened upward is provided at the uppermost part of the back pack 71, and the game balls supplied from the island facility of the game hall are sequentially replenished to the tank 77. A tank rail that is gently inclined toward the downstream side is connected to the lower side of the tank 77, and a case rail extending in the vertical direction is connected to the downstream side of the tank rail. A payout device 78 is provided at the most downstream portion of the case rail. The game balls paid out from the payout device 78 are discharged to the upper plate 57a or the lower plate 58a through a payout passage (not shown) provided on the downstream side of the payout device 78.

  A backpack substrate 79 is installed in the payout mechanism 72. The back pack substrate 79 is supplied with, for example, an AC 24 volt main power, and is turned on or off by a power switch switching operation.

  A control device assembly unit 73 is attached to the lower end portion of the base portion 74. The control device assembly unit 73 has a horizontally long mounting base 81, and a payout control device 82 and a power source and launch control device 83 are mounted on the mounting base 81. The payout control device 82 and the power supply / launch control device 83 are arranged so as to overlap each other so that the payout control device 82 is behind the pachinko machine 10.

  The payout control device 82 is configured such that a payout control board for controlling the payout device 78 is accommodated in the board box 84. The power source and launch control device 83 is configured such that the power source and launch control board is accommodated in the board box 85, and predetermined power required by various control devices and the like is generated and output by the board. The launch control of the game ball accompanying the operation of the handle device 59 is performed. This pachinko machine 10 has a function to store and store various data so that even if a power failure occurs, it maintains the state at the time of the power failure, and when it recovers from the power failure, it can be restored to the state at the time of the power failure. It has become.

  Next, the configuration of the main control device 63 will be described in detail with reference to FIGS. 7 is a perspective view of the main control device 63, FIG. 8 is a front view of the main control device 63, and FIG. 9 is an exploded perspective view of the main control device 63.

  As shown in FIG. 9, the main control device 63 includes a main control board 91 and a board box 92, and the main control board 91 is accommodated in the internal space of the board box 92.

  The main control board 91 includes a CPU that performs main control, a ROM that stores a game program, a RAM that stores necessary data according to the progress of the game, and the like. In the present embodiment, the CPU, ROM, and RAM are integrated into one chip on the CPU chip 93. Although not described in detail, an input / output driver IC chip 94 and a latch IC chip 95 are mounted. Although not shown, the main control board 91 is mounted with various elements such as capacitors and resistors and a plurality of connectors.

  In the main control board 91, various elements such as the CPU chip 93 are all mounted on the same plate surface and soldered on the opposite plate surface. That is, in the main control board 91, one plate surface is an element mounting surface 96 and the other plate surface is a solder surface. The solder surface is a surface on which soldering portions of various elements mounted on the element mounting surface 96 are provided, but a circuit pattern may be formed on the solder surface.

  The board box 92 includes a front side structure (box cover) 101 and a back side structure (box base) 102 as a plurality of box structures. The front-side structure 101 and the back-side structure 102 are formed of a material having transparency so that the element mounting surface 96 and the solder surface of the main control board 91 accommodated in the board box 92 can be seen from the outside of the board box 92. Has been. Specifically, it is formed of a colorless and transparent polycarbonate resin, but the forming material is not limited to this and may be an acrylic resin or the like.

  By combining the front side structure 101 and the back side structure 102, as shown in FIGS. 7 and 8, the substrate box 92 is formed in a square box shape (substantially rectangular parallelepiped shape) and has a predetermined internal space. ing. Specifically, as shown in FIG. 9, the front side structure 101 is formed so as to swell to the one side from the front side peripheral part 103 that defines the peripheral edge of the front side structure 101 and the front side peripheral part 103. The bulging portion 104 is integrally formed. By these front side peripheral edge portion 103 and the bulging portion 104, the front side structure 101 has a substantially rectangular parallelepiped shape opened to the opposite side of the bulging portion 104 from the bulging side.

  The main control board 91 is screwed to the front side structure 101 from the back side (fixed in a detachable state). The screws of the main control board 91 to the front side structure 101 are fixed from the solder surface side of the main control board 91, and various elements mounted on the element mounting surface 96 of the main control board 91 are main control. It is accommodated in a region between the substrate 91 and the front side structure 101.

  The back side structure 102 is fixed to the front side structure 101 in which the main control board 91 is integrated. As shown in FIG. 9, the back-side structure 102 is formed in a substantially plate shape having a quadrangular shape, specifically a rectangular shape when viewed from the front, and includes a planar portion 105 formed in a planar shape and the planar portion. A back-side peripheral edge 106 formed so as to surround the periphery of 105 is integrally formed.

  By fixing the back side structure 102 from the back side to the front side structure 101, the front side peripheral part 103 of the front side structure 101 and the back side peripheral part 106 of the back side structure 102 overlap, and the back side of the bulging part 104 The open portion to the side is closed by the flat portion 105 of the back side structure 102. In this case, the solder surface of the main control board 91 is covered with the back side structure 102. That is, the entire element mounting surface 96 of the main control board 91 is opposed to the front side structure 101, and the entire solder surface of the main control board 91 is opposed to the back side structure 102. As shown in FIG. 5, the main control device 63 having the above configuration is mounted such that the surface of the front side structure 101 faces the back of the pachinko machine 10.

  Next, the structure regarding fixation with the front side structure 101 and the back side structure 102 is demonstrated in detail. The configuration relating to the fixation of the two structural members 101 and 102 includes a restricting means for restricting the mutual displacement of the two structural members 101 and 102 only in a specific restricting direction, and both preventing the misalignment in the restricting direction. Fixing means for fixing the constituent members 101 and 102 to each other.

  First, the regulating means will be described in detail. In the following description of the regulating means, not only FIG. 9 but also FIG. 10 will be referred to as appropriate. FIG. 10A is an enlarged side view showing a part of the main controller 63, and FIG. 10B is a cross-sectional view taken along the line AA of FIG. 10A.

  As shown in FIG. 9, a hook part (an engaging part or a front side regulating part) 111 is integrally formed on the front side structure 101 as a regulating means. A plurality of hook portions 111 are provided, and these hook portions 111 are along the direction in which the long side portions extend in each of the opposing long side portions (specifically, the upper edge portion and the lower edge portion) of the front side peripheral edge portion 103. Are formed at regular intervals. In this case, six hook portions 111 are formed on each of the upper and lower portions, but the number thereof is arbitrary as long as it is plural. The hook portions 111 are all formed to have the same shape, and are all formed to the same size.

  The shape of the hook part 111 will be described in detail. The front side peripheral portion 103 of the front side structure 101 includes a frame portion 112 formed in a rectangular frame shape along the front side peripheral portion 103. The frame portion 112 is formed by standing from the base portion 110 continuing to the bulging portion 104 at the front side peripheral edge portion 103 toward the back side structure 102. In this case, the projecting dimension (height dimension) of the frame part 112 from the base part 110 is the same as the thickness dimension of the main control board 91. The projecting dimension of the frame part 112 from the base part 110 may be larger than the thickness dimension of the main control board 91.

  A plurality of hook portions 111 are formed on an upper frame portion (one frame portion) 113 constituting one long side portion in the frame portion 112, and one long side is located at a position facing the upper frame portion 113. A plurality of hook portions 111 are also formed in a lower frame portion (another frame portion) 114 constituting the portion. In this case, the inner surface of each hook portion 111 is located on the same plane as the inner surface of the forming frame portion 112, and the outer surface of each hook portion 111 is the outer surface of the forming frame portion 112. It is located on the same plane as this surface.

  The hook portion 111 is formed with the frame portion 112 as a base end, and is formed by being bent at an intermediate position so that the free end side extends toward one short side of the front side structure 101, specifically, toward the right edge. Has been. That is, the hook portion 111 is formed by integrally forming a standing portion 115 that rises from the frame portion 112 toward the back-side component 102 and an extending portion 116 that extends from the standing portion 115 toward the side edge of the front-side component 101. .

  The extending portion 116 is separated from the frame portion 112 by the height dimension of the upright portion 115, and a locking groove 117 is formed between the extending portion 116 and the frame portion 112. The locking groove 117 is formed along the extended portion 116 and is opened on the free end side of the extended portion 116.

  A locking receptacle (back side regulating portion) 121 is integrally formed on the back side structure 102 so as to correspond to the hook portion 111. The shape of the latch receiver 121 will be described in detail. A series of upper peripheral wall portions 122 are integrally formed along the entire side portion of the back side peripheral portion 106 of the back side structure 102 on the side portion corresponding to the upper frame portion 113 of the front side structure 101. A series of lower peripheral wall portions 123 are integrally formed on the side portion corresponding to the lower frame portion 114 of the structural body 101 along the entire side portion. The upper peripheral wall portion 122 and the lower peripheral wall portion 123 are erected toward the front side structure 101. Each of the upper peripheral wall portion 122 and the lower peripheral wall portion 123 constitutes a peripheral surface (upper surface and lower surface) of the back-side component 102 and also constitutes a peripheral surface (upper surface and lower surface) of the substrate box 92.

  The back side peripheral portion 106 includes an upper pedestal portion 124 and a lower pedestal portion 125 that are integrally formed with the upper peripheral wall portion 122 and the lower peripheral wall portion 123, respectively. Here, both the upper pedestal portion 124 and the lower pedestal portion 125 have the same configuration, and the configuration of the restricting means is basically the same on the upper side and the lower side of the substrate box 92. The lower configuration will be described below as an example.

  As shown in FIG. 9, the lower pedestal portion 125 is formed so as to protrude from the inner wall surface of the lower peripheral wall portion 123 toward the flat surface portion 105 side of the back side structural body 102, and the lower peripheral wall portion 123 and the flat surface portion. 105 for both. The lower pedestal 125 is formed over the entire length direction (longitudinal direction) of the lower peripheral wall portion 123 or substantially the whole.

  The lower pedestal portion 125 stands up toward the front side structure 101. However, the height dimension (dimension in the thickness direction of the substrate box 92) is set smaller than the height dimension of the lower peripheral wall portion 123. In this regard, it can be said that the back side structure 102 has a stepped shape due to the lower peripheral wall portion 123 and the lower pedestal portion 125 at the edge on the long side.

  The lower pedestal portion 125 is formed with a locking receiver 121 corresponding to the hook portion 111 on a one-to-one basis. In other words, six locking receivers 121 are formed on the top and bottom. However, the specific number is arbitrary as long as it corresponds to the hook part 111 on a one-to-one basis. All the latch receivers 121 have the same shape and size.

  The locking receiver 121 is configured as a slit that penetrates the lower pedestal portion 125 in the height direction thereof, that is, in the thickness direction of the back side structure 102. Specifically, the locking receiver 121 includes an inner wall portion 126 that forms a boundary portion between the lower peripheral wall portion 123 that forms the peripheral surface as described above in the back side structure 102 and the flat portion 105 in the lower pedestal portion 125. Further, the periphery is defined by a connecting wall portion 127 formed so as to connect the lower peripheral wall portion 123 and the inner wall portion 126, and the thickness direction of the back side structure 102 (the thickness direction of the substrate box 92) Has penetrated.

  Incidentally, the connecting wall portion 127 also has a function of partitioning the adjacent locking receptacles 121 and faces the front side structural body 101 (the frame portion 112 of the front side structural body 101) at the lower pedestal portion 125. Is configured. Further, the inner wall portion 126 is formed so as to block the intrusion path into the substrate box 92 from the locking receiver 121 side, and the inner wall portion 126 constitutes a peripheral surface of the inner space of the substrate box 92. ing.

  The width dimension of the locking receiver 121, that is, the distance between the lower peripheral wall portion 123 and the inner wall portion 126 is set to be the same as or slightly larger than the thickness dimension of the hook portion 111. In addition, the length dimension of the locking receiver 121, that is, the distance between the opposing connecting wall portions 127 is set to be larger than the length dimension of the extending portion 116.

  As shown in FIG. 10A, the latch receiver 121 includes a receiver 128 that closes the slit-shaped latch receiver 121 on the one connecting wall 127 side. The connecting wall portion 127 on the side where the receiving portion 128 is formed is a side corresponding to the free end side of the hook portion 111 of both the connecting wall portions 127 in one locking receiver 121.

  The receiving portion 128 is formed at the end on the front side structural body 101 side in the locking receiver 121. Moreover, the receiving part 128 does not close the entire slit-like locking receiver 121 but only a part thereof. And the distance from the connection wall part 127 of the side in which the receiving part 128 is not formed in the latching receiver 121 to the receiving part 128 becomes larger than the length dimension of the extension part 116 of the hook part 111 in the extending direction. Yes. Thereby, in the configuration in which the receiving portion 128 is formed as described above, the hook portion 111 can be inserted into the locking receiver 121 from the front side of the back side structure 102. The receiving part 128 is set to have a thickness dimension that can enter the locking groove 117 of the hook part 111.

  The latch receiver 121 includes a closing portion 129 that closes the slit-shaped latch receiver 121 on the connecting wall 127 side opposite to the receiver 128. However, the closing portion 129 is formed at the end of the locking receiver 121 opposite to the side where the receiving portion 128 is formed. Further, the closing portion 129 does not close the entire slit-shaped locking receiver 121 but only a part thereof.

  In the state where the front side structural body 101 and the back side structural body 102 are integrated, as shown in FIGS. 10 (a) and 10 (b), the hook portion 111 is inserted into the locking receiver 121, As shown in FIG. 10A, the receiving portion 128 of the locking receiver 121 is inserted into the locking groove 117 of the hook portion 111. The receiving portion 128 is in contact with the frame portion 112 and is in contact with the extending portion 116 of the hook portion 111.

  In this case, even if the front side structure 101 and the back side structure 102 are moved and separated in the entering direction of the receiving part 128 with respect to the locking groove 117, the receiving part 128 is provided on the standing part 115 of the front side structural body 101. It is regulated by contacting. Further, even if the front side structural body 101 and the back side structural body 102 are separated in the thickness direction of the substrate box 92, they are restricted by the contact between the hook portion 111 and the receiving portion 128. Further, as shown in FIG. 10B, the hook portion 111 is sandwiched between both the lower peripheral wall portion 123 and the inner wall portion 126 constituting the locking receiver 121. Therefore, even if the front side structural body 101 and the back side structural body 102 are moved up and down to be separated, the hook portion 111 is regulated by contacting either the lower peripheral wall portion 123 or the inner side wall portion 126. . That is, the direction in which the front side structure 101 and the back side structure are separated by the hook portion 111 and the locking receiver 121 is the direction in which the receiving portion 128 is extracted from the locking groove 117, that is, one short side of the substrate box 92. It is regulated on the side.

  In particular, a plurality of combinations of the hook portion 111 and the locking receiver 121 are provided on both long side portions of the substrate box 92, and further, these combinations are substantially the same in the length direction of each long side portion. It is performed at positions dispersed throughout. Therefore, the above regulations are strictly enforced.

  As shown in FIG. 10B, in the restricted state where the hook portion 111 is inserted into the locking receiver 121 and the receiving portion 128 is inserted into the locking groove 117, the lower frame portion 114 of the front side structure 101. Are overlapped in the thickness direction of the lower pedestal 125 and the substrate box 92. In this case, the lower frame portion 114 is overlapped over the entire lower pedestal portion 125, and the inner space of the substrate box 92 is formed in the long side portion of the substrate box 92 by the lower pedestal portion 125 and the lower frame portion 114. A part of the peripheral surface is configured.

  As described above, the lower frame portion 114 is provided so as to stand from the base portion 110 of the front side peripheral edge portion 103 toward the back side structure 102. Further, the lower pedestal portion 125 is a portion constituting the slit-like locking receiver 121 as described above, and accordingly, is formed thicker than the lower frame portion 114. Further, the lower frame portion 114 is disposed at a position biased toward the lower peripheral wall portion 123 so as to contact the lower peripheral wall portion 123 on the lower pedestal portion 125. Therefore, as shown in FIG. 10B, a predetermined gap is formed between the base portion 110 that continues to the lower frame portion 114 and the lower pedestal portion 125, and the main control board 91 is formed in the gap. Part of the peripheral edge of

  As described above, the lower peripheral wall portion 123 of the back-side structure 102 protrudes to the front-side structure 101 side with respect to the lower pedestal portion 125, and the protruding portion is outward with respect to the outer side surface of the lower frame portion 114. Are overlapping. Further, the lower peripheral wall portion 123 has an end surface on the leading end side thereof that is flush with the surface of the base portion 110 in the front peripheral edge portion 103. That is, the lower peripheral wall portion 123 overlaps the entire outer peripheral surface of one long side portion in the front side peripheral edge portion 103. Due to this configuration, the boundary of the long side portion between the front-side structure 101 and the back-side structure 102 is linear as shown in FIG.

  Moreover, the said boundary exists in the outer side rather than the base part 110 of the front side peripheral edge part 103, as shown in FIG.10 (b). Even if a fraudulent jig such as a lead wire is inserted into the internal space of the board box 92 through the boundary, the lower frame part 114 and the lower pedestal part 125 overlap with each other as described above. Is blocked. Furthermore, since the restriction by the hook portion 111 and the locking receiver 121 is firmly performed as described above, even if the lower frame portion 114 and the lower pedestal portion 125 are separated from each other, this is firmly prevented. .

  Here, by providing the hook portion 111 and the locking receiver 121 as described above, the restriction on the separation direction of the front side structure 101 and the back side structure 102 can be achieved while reducing the size of the substrate box 92. It is done firmly. This configuration will be described using FIG. 11 in comparison with a configuration in which the size of the board box 92 is increased. FIG. 11A is a cross-sectional view showing a restriction location of the substrate box 92 in the pachinko machine 10, and FIG. 11B is a cross-sectional view showing a restriction location of the substrate box 131 to be compared.

  The board box 92 of the pachinko machine 10 is provided with the hook part 111 and the locking receiver 121 as described above, so that the board can be moved from the edge of the internal space of the board box 92 to the board as shown in FIG. The distance to the peripheral surface of the box 92 is X1.

  On the other hand, in the board box 131 to be compared, as shown in FIG. 11B, the hook portion 132 and the locking receiver 133 are in a reverse relationship with the board box 92, and the front side structure 134 and It is formed on the back side structure 135. That is, the hook portion 132 is formed on the back-side structure 135, and the locking receiver 133 is formed on the front-side structure 134. Further, in the substrate box 92, the edge portion of the front side structure 101 provided with the hook portion 111 constitutes a part of the peripheral surface of the internal space in the substrate box 92, but in the substrate box 131, the hook portion 132 is formed. The edge part of the provided back side structure 135 does not constitute a part of the peripheral surface of the internal space. Therefore, the distance from the edge of the internal space of the substrate box 131 to the peripheral surface of the substrate box 131 is X2, which is longer than the distance X1 of the corresponding portion in the substrate box 92 by X3.

  As described above, according to the substrate box 92 of the pachinko machine 10, the separation of the front side structure 101 and the back side structure 102 is firmly regulated while the size of the substrate box 92 is reduced. In the pachinko machine 10, it is preferable to increase the size of the display screen of the symbol display device 41 and to make the pachinko machine 10 multifunctional. However, if an attempt is made to increase the size of the display screen or to make the pachinko machine 10 multifunctional, a space for mounting electrical devices on the back side of the pachinko machine 10 is limited. In contrast, by reducing the size of the substrate box 92 as described above, it is possible to satisfactorily realize an increase in the size of the display screen and the increase in the number of functions of the pachinko machine 10.

  Next, the assembling work of the front side structural body 101 and the back side structural body 102 by the restriction means will be described with reference to FIG. FIGS. 12A to 12C are explanatory views for explaining the assembly work of the front side structural body 101 and the back side structural body 102.

  When the front-side structure 101 and the back-side structure 102 are fixed to each other, first, the hook portion 111 is engaged from the back side of the back-side structure 102 so that the state shown in FIG. 12A is changed to the state shown in FIG. Insert into the catch 121. In this case, the free end of the hook part 111 faces the receiving part 128 side in the inserted locking receiver 121. Further, in this state, the front-side structure 101 and the back-side structure 102 are not completely overlapped but are shifted in the left-right direction.

  After that, at least one of the front-side structure 101 or the back-side structure 102 is slid in the direction in which both the structures 101 and 102 are completely overlapped, as shown in FIG. The receiving portion 128 of the locking receiver 121 enters the working groove 117. Thereby, the moving direction of the front side structural body 101 and the back side structural body 102 is regulated so as to be movable only in the direction in which the receiving portion 128 is removed from the locking groove 117. In this state, the fixing by the fixing means makes it impossible to move in the movement direction restricted by the restricting means, and the front structure 101 and the back structure 102 are fixed to each other.

  Next, the fixing means will be described.

  As shown in FIGS. 8 and 9, a front-side coupling region 141 is integrally formed on one short side portion of the front-side structure 101. The front side coupling region 141 is formed to extend laterally from the bulging portion 104 at the short side portion. A plurality (specifically, four) of front side coupling portions 142 and 143 are provided in the front side coupling region 141, and each front side coupling portion 142 and 143 has a through-hole portion penetrating in the thickness direction of the substrate box 92. 144 is formed. In the present embodiment, the front-side coupling portion used when manufacturing the main control device 63 and the main control device 63 are used to re-box both components 101 and 102 after the main control device 63 is opened. There are two different types of front side coupling parts. Hereinafter, for convenience of explanation, the former is referred to as “first front side coupling portion 142” and the latter is referred to as “second front side coupling portion 143”.

  Each front side coupling | bond part 142,143 is provided in parallel along the said short side part. More specifically, two second front side coupling portions 143 are disposed between two first front side coupling portions 142 that are spaced apart along the short side portion. In addition, each first front side coupling portion 142 is coupled to the bulging portion 104 via the first coupling portion 145 and is coupled to the adjacent second front side coupling portion 143 via the second coupling portion 146. . In this case, a space in which a tool such as a nipper or a cutter can be inserted is secured around each of the connecting portions 145 and 146, and it is easier to cut with the above tool than destroying the first front side coupling portion 142. ing. In addition, it is also possible to abbreviate | omit the 2nd connection part 146 mentioned above. Incidentally, the details of the differences between the first front side coupling portion 142 and the second front side coupling portion 143 will be described later.

  Corresponding to the front side binding region 141, a back side binding region 151 is provided on the back side peripheral edge 106 of the back side structure 102 (see FIG. 13 and the like). Here, in the substrate box 92, the back side coupling region 151 has a characteristic configuration. Therefore, the configuration relating to the coupling will be described below while focusing on the characteristic configuration of the back-side coupling region 151.

  First, the structure of the back side coupling | bond area | region 151 is demonstrated using FIGS. 13-15 in addition to FIG. 13 is a cross-sectional view of the back side coupling region 151, FIG. 14 is a perspective view including a partially broken region of the receiving member 153 constituting the back side coupling region 151, and FIG. 15A is a cover member 154 constituting the back side coupling region 151. FIG. 15B is a perspective view of the cover member 154 as seen from the back side.

  As shown in FIGS. 9 and 13, the back side coupling region 151 includes a coupling region forming part 152 integrally formed on the back side peripheral edge 106 of the back side structure 102 and a receiving member (receiving part) assembled to the coupling region forming part 152. Metal fitting) 153 and a cover member 154.

  The coupling region forming portion 152 is formed over the whole or substantially the whole in one short side portion of the back side peripheral portion 106 of the back side structure 102. As shown in FIG. 13, the coupling region forming portion 152 is formed with a groove portion 155 that is open toward the front side structure 101 side. The groove portion 155 is formed over the entire coupling region forming portion 152.

  A receiving member 153 is fixed to the coupling region forming portion 152 in a state of being inserted into the groove portion 155. The receiving member 153 is formed by bending a metal plate having a strength (hard) higher than that of at least the wall portion of the backside structure 102 at a plurality of locations as shown in FIG. 155 has the same or substantially the same length. Note that the receiving member 153 may be formed by welding a plurality of metal plates rather than by bending the metal plate.

  The receiving member 153 includes a receiving base portion 162 formed so as to have a recessed space 161 along the peripheral surface of the groove portion 155, and a hook plate portion 163 integrally formed with the receiving base portion 162. I have. In this case, the receiving base portion 162 includes opposed plate portions 164 and 165 facing each other and a connecting plate portion 166 that connects the opposed plate portions 164 and 165 at one end, and each of these plate portions 164 and 165. , 166 form a recessed space 161. Further, the hooking plate portion 163 is also plate-shaped, and a part of the plate portions faces the inner facing plate portion 164.

  The receiving member 153 is installed in the coupling region forming portion 152 so that the outer peripheral surface of the receiving base portion 162 overlaps with the inner peripheral surface of the groove portion 155. In this case, the hook plate portion 163 is in a state of being hooked on the inner groove wall portion 156 among the wall portions forming the groove portion 155 in the coupling region forming portion 152. Further, as shown in FIGS. 9 and 14, among the opposing plate portions 164 and 165 of the receiving base portion 162, the outer opposing plate portion 165 is formed with a plurality of locking recesses 167. Correspondingly, as shown in FIG. 9, a locking portion 158 is integrally formed on the outer groove wall portion 157 among the wall portions defining the groove portion 155 in the coupling region forming portion 152. The locking portions 158 are formed at a plurality of locations in a one-to-one correspondence with the locking recesses 167.

  In a state where the receiving member 153 is installed in the coupling region forming portion 152, the locking recess 167 is locked by the locking portion 158, and the receiving member 153 is fixed to the coupling region forming portion 152. In a state where the receiving member 153 is fixed to the coupling region forming portion 152, the recessed space 161 in the receiving base portion 162 is opened toward the front-side component 101, and the receiving base portion 162 is substantially entirely in the groove portion 155. It is located across.

  That is, as shown in FIG. 8, the receiving member 153 is located over substantially the entire short side of the substrate box 92. In other words, the receiving member 153 is provided so as to be located over the whole or substantially the whole between the corner portions of at least a predetermined peripheral surface portion of the plurality of peripheral surface portions of the substrate box 92. In other words, the substrate box 92 is formed in a polygonal shape (rectangular shape) when viewed from the front, and the receiving member 153 is located over the whole or substantially the entire extending direction of the side of the predetermined side. Is provided.

  Of the counter plate portions 164 and 165 of the receiving member 153, the inner counter plate portion 164 is provided with a locking piece 168 so as to protrude toward the recessed space 161 as shown in FIG. As shown in the broken portion in FIG. 14, the locking piece 168 is formed by cutting the inner opposing plate portion 164 within a range not to be cut, and bending the portion that has become a plate spring shape by cutting to the concave space 161 side. Has been. In this case, the free end of the locking piece 168 faces the connecting plate portion 166 side of the receiving base portion 162, that is, the back side of the recessed space 161. A plurality of the locking pieces 168 are formed at equal intervals. The number of the locking pieces 168 is the same as the number of the front side coupling portions 142 and 143 formed in the front side coupling region 141, and the positions of the front side coupling portions 142 and 143 are the same. It is formed corresponding to.

  As described above, the cover member 154 is installed on the coupling region forming portion 152 to which the receiving member 153 is fixed. The cover member 154 is formed of a colorless and transparent polycarbonate resin, but the forming material is not limited to this, and may be an acrylic resin or the like. The cover member 154 has the same or substantially the same length as the coupling region forming part 152, and has a function of covering the whole or substantially the whole of the coupling region forming part 152 and the receiving member 153. It has a function for partitioning the coupling region forming portion 152 to which the member 153 is fixed into the same number of back side coupling portions 176 as the front side coupling portions 142 and 143.

  Specifically, as shown in FIG. 13, the cover member 154 includes a first cover plate portion 172 and a second cover plate portion 173 orthogonal to the first cover plate portion 172. 171. When the cover member 154 is installed in the coupling region forming portion 152, the first cover plate portion 172 has the groove walls 156 and 157 facing the coupling region forming portion 152 and the receiving member 153 fixed to the coupling region forming portion 152. On the other hand, the second cover plate portion 173 overlaps the entire outer peripheral surface of the outer groove wall portion 157 in the coupling region forming portion 152 from the outside, overlapping from the open side of the recessed space 161 of the receiving member 153. ing.

  As shown in FIG. 15A, the first cover plate portion 172 is formed with a plurality of through-hole portions 174 at equal intervals in the length direction. By forming the through hole portion 174, the recessed space 161 of the receiving member 153 is not completely closed by the first cover member 154, and is directed toward the front-side component 101 at the position of the through hole portion 174. Open.

  The through-hole portion 174 has a one-to-one correspondence with the locking piece 168 of the receiving member 153, and as shown in FIG. 13, one through-hole portion 174 and one position aligned with the substrate box 92 in the thickness direction. The locking piece 168 is located. Moreover, the through-hole part 174 has a one-to-one correspondence with the front side coupling parts 142 and 143.

  On the surface side of the first cover plate portion 172, as shown in FIGS. 15 (a) and 15 (b), regions where the through-hole portions 174 are formed on the surface side of the first cover plate portion 172 are individually provided. A partition wall 175 is integrally formed so as to partition. And the back side coupling | bond part 176 is comprised by each area | region divided by the division wall part 175. FIG. Each back side coupling part 176 is opened toward the front side structure 101 and is also opened toward the short side part facing the short side part on the side where the back side coupling region 151 is formed in the back side structure 102. Yes. Each back side coupling portion 176 has a size that can accommodate the corresponding front side coupling portion 142, 143, and in the state where each front side coupling portion 142, 143 corresponding to each back side coupling portion 176 is accommodated, each front side The through holes 144 of the coupling parts 142 and 143 and the through holes 174 of the back side coupling parts 176 are in communication with each other.

  As shown in FIG. 15B, positioning protrusions 177 are formed at a plurality of locations on the back surface side of the first cover plate portion 172. When the cover member 154 is installed, these positioning protrusions are formed. By setting 177 into the recessed space 161 of the receiving member 153, the installation location can be easily positioned. Further, when the projection 177 enters the recessed space 161 of the receiving member 153, the direction in which the cover member 154 is detached from the installation location is restricted. In other words, it is regulated in the direction in which the recessed space 161 is opened, that is, the direction from the back side structure 102 to the front side structure 101.

  Next, a flow of work for forming the back side coupling region 151 and a flow of work for combining both the structural members 101 and 102 will be described with reference to FIG. FIGS. 16A to 16C are explanatory views for explaining the work in forming the back side coupling region 151.

  As shown in FIG. 16B, a receiving member 153 is installed on the coupling region forming portion 152 of the back side structure 102 shown in FIG. In the installation, the receiving base portion 162 of the receiving member 153 enters the groove portion 155 of the coupling region forming portion 152 and the hooking plate portion 163 of the receiving member 153 is hooked on the inner groove wall portion 156 of the coupling region forming portion 152. It is performed so that it will be in the state.

  As shown in FIG. 16B, the receiving base portion 162 of the receiving member 153 is overlapped with the inner peripheral surface of the groove portion 155 of the coupling region forming portion 152, so that the locking recess 167 of the receiving base portion 162 is engaged. Is locked by the locking portion 158 of the coupling region forming portion 152. The locking portion 158 has a tip protruding into the groove portion 155, but the locking portion 158 is formed to be elastically deformable to a position that does not hinder the entry when the receiving base portion 162 enters the groove portion 155. ing.

  Thereafter, as shown in FIG. 16C, the cover member 154 is installed in the coupling region forming portion 152 where the receiving member 153 is installed. At this time, since the positioning projection 177 is formed on the cover member 154, the cover member 154 can be installed satisfactorily. When the cover member 154 is installed, the locking portion 158 is covered from the outside by the cover member 154. Further, the portion where the locking portion between the locking portion 158 and the locking recess 167 at the opening portion of the groove portion 155 is exposed is also covered with the cover member 154. As a result, even if the locking state between the locking portion 158 and the locking recess 167 is illegally released, the act becomes difficult to perform.

  Next, the breaking screw 170 is inserted into the cylindrical portion 178 (specifically, the hole 178a) of the cover member 154. Then, the breaking screw 170 is inserted into the round hole 179 and the communication hole 169, and the breaking screw 170 is screwed into the mounting hole 159 using a tool such as a screwdriver. By screwing the fracture screw 170 to a position where it cannot be tightened any more, the cover member 154 is fixed to the back side structure 102. That is, the cover member 154, the receiving member 153, and the back-side structure 102 are integrated, and the formation of the back-side coupling region 151 is completed.

  Here, the mutual positional relationship between the fixing part (round hole 179) of the cover member 154 and the front side coupling portions 142 and 143 will be described. As shown in FIG. 8 etc., the 1st front side coupling | bond part 142 is arrange | positioned on both sides which pinched | interposed the fixing | fixed site | part of the cover member 154. As shown in FIG. More specifically, the first front side coupling portion 142 is disposed so as to be biased to both short sides of the cover member 154. And the 2nd front side coupling | bond part 143 is arrange | positioned between the fixed site | part of these cover members 154, and the 1st front side coupling | bond part 142, respectively. In other words, the fixing portion of the cover member 154 is in a state of being doubled between the first front side coupling portion 142 and the second front side coupling portion 143. That is, the distance dimension between the fixed part and the first front side coupling part 142 is set larger than the distance dimension between the fixed part and the second front side coupling part 143.

  Next, a configuration related to the coupling between the front side coupling portions 142 and 143 and the back side coupling portion 176 will be described. As described above, the configuration related to the coupling between the first front side coupling portion 142 and the second front side coupling portion 143 is partially different. Therefore, first, the first front side coupling portion 142 will be described in detail with reference to FIG. 17A, and then the second front side coupling portion 143 will be described based on the differences from the first front side coupling portion 142. FIG. 17A is a cross-sectional view showing a connecting portion between the first front side connecting portion 142 and the back side connecting portion 176 in the substrate box 92.

  In the state where each first front side coupling portion 142 corresponding to each back side coupling portion 176 is accommodated, as described above, it is formed in the through hole portion 144 and the first cover plate portion 172 of each first front side coupling portion 142. In addition, the corresponding through-hole portions 174 are in communication with each other. As shown in FIG. 17A, a metal first coupler (fixing tool) 181 is inserted into the through-hole portions 144 and 174 communicated with each other from the first front-side coupling portion 142 side. Thus, the first front side coupling portion 142 and the back side coupling portion 176 are coupled (fixed).

  The first coupler 181 is formed by bending a long metal plate into a substantially L shape, and includes a base portion 181a inserted through the through-hole portions 144 and 174, and one side of the base portion 181a. The operation part 181b is formed at the end part and is orthogonal to the base part 181a. The base portion 181a is formed with a locking hole portion 181c penetrating in the thickness direction, and the locking piece 168 enters the locking hole portion 181c by inserting the first coupler 181. In this case, since the locking piece 168 functions as a leaf spring as described above, and the free end is directed to the back side of the recessed space 161, the movement of the first coupler 181 in the insertion direction is not performed. Although not regulated, the movement of the first coupler 181 in the extraction direction is regulated after the locking piece 168 enters the locking hole 181c. Thereby, the 1st front side coupling | bond part 142 and the back side coupling | bond part 176 are couple | bonded, and the front side structural body 101 and the back side structural body 102 are fixed. When inserting the first coupler 181, the operation can be easily performed by pressing the operation unit 181 b with a finger or the like.

The operation portion 181b is formed at the end portion of the base portion 181a on the front side coupling portion 142 side, and in a mounted state, the plate surface abuts on the abutting portion 142a of the first front side coupling portion 142. . The contact portion 142a has a substantially plate shape parallel to the plate surface of the operation portion 181b. The operation side 181b and the contact part 142a are in contact with each other, so that the front side connection part 142 is sandwiched between the operation part 181b and the back side connection part 176. That is, both the coupling portions 142 and 176 are coupled.

  The front side coupling region 141 (specifically, the first front side coupling part 142) is formed with a first peripheral wall part 142b that stands up around the contact part 142a and accommodates the operation part 181b therein. In other words, the housing recess 182 that houses the operation portion 181b is formed by the first peripheral wall portion 142b. The inner periphery of the accommodating recess 182 is set to be substantially the same as the outer periphery of the operation portion 181b (see FIG. 8), and after the operation portion 181b is accommodated in the accommodating recess 182, it is difficult to grasp the operation portion 181b. ing. Thereby, the unauthorized removal of the 1st coupling tool 181 is suppressed.

  Next, the structure related to the 2nd front side coupling | bond part 143 and the said 2nd front side coupling | bond part 143 is demonstrated based on FIG.17 (b). FIG. 17 (b) is a cross-sectional view showing a joint location between the second front side joint portion 143 and the back side joint portion 176 in the substrate box 92.

  Similar to the first front side coupling portion 142, the second front side coupling portion 143 includes a contact portion 143a and a peripheral wall portion 143b. Similarly to the first coupler 181, a second coupler (fixer) 183 that couples (fixes) the second front-side coupler 143 and the back-side coupler 176 is provided. A housing recess 184 capable of housing the second coupler 183 is formed by the wall surfaces of the peripheral wall portion 143b and the bulging portion 104. The second coupler 183 fits into the housing recess 184 and the through-hole portions 144, 174 are accommodated. The second front side coupling portion 143 and the back side coupling portion 176 are coupled to each other.

  The second coupler 183 is formed by bending a long metal plate into a substantially L shape, and includes a base portion 183a inserted through the through-hole portions 144 and 174, and one side of the base portion 183a. An operation portion 183b that is formed at the end and is orthogonal to the base portion 183a is configured. The base portion 183a is formed with a locking hole portion 183c penetrating in the thickness direction, and the locking piece 168 enters the locking hole portion 183c by inserting the second coupler 183. In this case, the locking piece 168 has a function as a leaf spring as described above, and since the free end is directed to the back side of the recessed space 161, the movement of the second coupler 183 in the insertion direction is not performed. Although not regulated, the movement of the second coupler 183 in the extraction direction is regulated after the locking piece 168 has entered the locking hole 183c. Thereby, the 2nd front side coupling | bond part 143 and the back side coupling | bond part 176 are couple | bonded, and the front side structural body 101 and the back side structural body 102 will be fixed.

  The peripheral wall portion 143 b is continuous with the bulging portion 104 of the front side structure 101. That is, unlike the first front-side coupling portion 142, a portion corresponding to the connecting portion 145 that facilitates detachment from the front-side structure 101 (which facilitates cutting) is not provided. Therefore, when the 2nd front side coupling | bond part 143 is couple | bonded, the isolation | separation of both the structural bodies 101 and 102 becomes impossible or difficult.

  A regulating portion 143 c that regulates the insertion direction of the second coupler 183 in a predetermined direction, specifically, the axial direction of the through-hole portion 144 is formed inside the housing recess 184. The restricting portion 143c includes a plurality of (two in the present embodiment) columnar portions extending in the axial direction of the through-hole portion 144. More specifically, the restricting portion 143c faces the peripheral wall portion 143b with the through hole 144 interposed therebetween, and the distance between the restricting portion 143c and the peripheral wall portion 143b is the thickness of the base portion 183a of the second coupler 183. It is almost the same as the dimensions. The insertion direction of the second coupler 183 inserted toward the through-hole portion 144 is restricted by fitting the base portion 183a into a region sandwiched between the restriction portion 143c and the peripheral wall portion 143b.

  The operation portion 183b is configured such that the maximum length dimension from the bent proximal end side to the distal end side in the operation portion 183b is substantially equal to the interval dimension between the peripheral wall portions 143b facing each other in the length direction. The tip edge is close to the peripheral wall portion 143b. Further, the operation portion 183b is configured to be approximately equal to the maximum width dimension (width dimension in a direction orthogonal to the length direction) and the interval dimension between the peripheral wall portions 143b facing each other in the width direction. Edges on both sides in the width direction are close to the peripheral wall portion 143b. As described above, the edge portions are brought close to the peripheral wall portion 143b, thereby making it difficult to grasp the operation portion 183b. Thereby, it is possible to make the pulling operation of the operation unit 183b difficult while maintaining the ease of the pressing operation of the operation unit 183b. In addition, you may make each edge part in the operation part 183b contact | abut with respect to the surrounding wall part 143b.

  Further, as shown in FIG. 8 and the like, a notch portion 183d corresponding to the restricting portion 143c is formed in the operation portion 183b of the second coupler 183. Specifically, the cutout portion 183d is formed by deleting a portion of the operation portion 183b that faces the restriction portion 143c in the axial direction of the through-hole portion 144. For this reason, even if the second coupler 183 is pushed in a predetermined direction regulated by the regulating part 143c, the movement of the second coupler 183 is not hindered by these regulating parts 143c. Contact between the operation portion 183b and the contact portion 143a of the second front side coupling portion 143 is secured.

  The restricting portion 143c is disposed along the peripheral wall portion 143b. Thereby, it is difficult to cause the inconvenience that the finger hits the restricting portion 143c in accordance with the pressing operation of the operation portion 183b. That is, the operability of the operation unit 183b is ensured.

  The second coupler 183 is configured to be temporarily fixed (locked) inside the housing recess 184, that is, to be held in a standby state before coupling. Hereinafter, the specific configuration will be described with reference to FIGS. 9 and 18. 18 is a partial sectional view taken along line BB in FIG.

  As shown in FIG. 18, a locking claw 143 d is formed inside the housing recess 184 (specifically, the peripheral wall 143 b) as a temporary locking part that protrudes inward and hooks into the locking hole 183 c. On the peripheral wall portion 143b, a component-side movable portion 143e is formed that enables bending deformation (elastic deformation) of the portion including the locking claw portion 143d based on the insertion of the second coupler 183 (see FIG. 9). ). The structure-side movable portion 143e has a function as a leaf spring, and the amount of protrusion of the engaging claw portion 143d to the inside of the housing recess 184 is reduced by being flexibly deformed (elastically deformed). It has become.

  On the other hand, the partition wall portion 175 has a cover side movable portion so that the region including the portion facing the component side movable portion 143e in the partition wall portion 175 can be deformed (elastically deformed) independently of the other portions. 175a is formed. Specifically, the cover-side movable part 175a has cuts formed on both sides of the partition wall part 175 including a region including the part facing the component-side movable part 143e. 175 can be deformed independently with respect to the peripheral region.

  When the second coupler 183 is inserted into the housing recess 184, the locking claw 143d and the base 183a of the second coupler 183 come into contact. Based on the pushing operation of the second coupler 183, the component-side movable portion 143e is deformed (elastically deformed), and accordingly, the cover-side movable portion 175a is also deformed (elastically deformed). That is, both movable parts 143e and 175a are bent together. Thereby, the protrusion amount of the latching claw part 143d is reduced, and the insertion of the second coupler 183 is allowed. Specifically, the locking claw portion 143d rides on the plate surface of the base portion 183a, and the locking claw portion 143d slides on the plate surface of the base portion 183a as the second coupling tool 183 moves. In such a state, the locking claw 143d is maintained while being urged toward the base portion 183a by the elastic force of both the movable portions 143e and 175a.

  When the second coupler 183 is pushed to a predetermined position, the locking claw 143d can be fitted into the locking hole 183c. In such a case, both the movable parts 143e and 175a try to return to the original state by their own elastic force, so that the locking claw part 143d fits into the locking hole part 183c, and the locking claw part 143d is locked. The hole 183c is caught. Thereby, the 2nd coupling tool 183 is temporarily fixed.

  As shown in FIG. 18, when the locking claw portion 143d is hooked to the locking hole portion 183c, that is, in the temporarily fixed state, the tip end portion of the base portion 183a protrudes from the through hole portion 144 (rear side coupling) Projecting toward the portion 176 side) is avoided. For this reason, the relative movement of the two structural members 101 and 102 is not hindered by the second coupler 183 temporarily fixed. Furthermore, in a state where the second coupler 183 is temporarily fixed, the operation portion 183b is housed in the housing recess 184, and it is difficult to grasp the operation portion 183b. For this reason, it is difficult to remove the second coupler 183 after temporarily fixing the second coupler 183.

  Further, as shown in FIG. 7, the cover side movable portion 175a is in contact with not only the component side movable portion 143e but also the peripheral wall portion 143b (specifically, both sides of the peripheral wall portion 143b sandwiching the component side movable portion 143e). . For this reason, if the cover side movable part 175a is pushed from the outside of the main controller 63, the load applied to the cover side movable part 175a can be dispersed by the peripheral wall part 143b, and the structure side movable part 143e Thus, it is possible to avoid local concentration of load. Further, the cover side movable portion 175a is in contact with a portion including at least the movable tip side of the component side movable portion 143e. Thereby, it is possible to suitably suppress the operation of the component side movable portion 143e from the outside.

  According to the component side movable portion 143e and the cover side movable portion 175a described in detail above, it is possible to suppress an unauthorized operation from the outside while allowing the bending deformation of the component side movable portion 143e, and a practically preferable configuration. Can be realized.

  Both the coupling members 181 and 183 are made of metal so as to have higher strength than the wall portion of the back side structure 102. The synthetic resin material may be made of a synthetic resin material, or may be formed of a material in which a reinforcing agent such as glass fiber is dispersed in a synthetic resin material. You may form by performing the surface treatment of.

  As described above, the direction in which the cover member 154 is removed from the installation location is regulated by the protrusion 177 in the direction from the back side structure 102 to the front side structure 101, so By being in the superimposed state, the movement in the direction in which the cover member 154 is detached is more preferably regulated. Then, the front side coupling portion 142 and the back side coupling portion 176 are coupled to each other, so that the cover member 154 is sandwiched between the front side coupling portion 142 and the coupling region forming portion 152 so that there is no play.

  As shown in FIG. 17, a receiving plate portion 185 is integrally formed on the cover member 154 so as to enter the internal space of the substrate box 92 from the first cover plate portion 172. As shown in FIG. 15 (b), the receiving plate portion 185 is provided at a plurality of locations so as to be located over the entire length of the cover member 154. As shown in FIG. A base end portion 186 extending from the one cover plate portion 172 toward the back side structural body 102 side, and a front end portion 187 extending from the base end portion 186 toward the center side of the internal space of the substrate box 92 are provided. The front end portion 187 of the receiving plate portion 185 is in contact with a support base portion 188 formed adjacent to the coupling region forming portion 152 in the back side structure 102 with the cover member 154 installed in the coupling region forming portion 152. . Further, the front end portion 187 of the receiving plate portion 185 is a state of the main control board 91 integrated with the frame portion 112 of the front side structural body 101 and the front side structural body 101 in a state where the front side structural body 101 is combined with the back side structural body 102. It will be in the state where the peripheral part got on. That is, the front end portion 187 of the receiving plate portion 185 is sandwiched between the support base portion 188 of the back side structure 102, the frame portion 112 of the front side structure 101, and the peripheral edge portion of the main control board 91. Thereby, the cover member 154 is fixed in a more stable state.

  Next, the work flow when the front side coupling parts 142 and 143 and the back side coupling part 176 are in the coupled state will be described with reference to FIG. FIGS. 19A to 19C are explanatory diagrams for explaining the flow of work when the first front side coupling portion 142 and the back side coupling portion 176 are in the coupled state.

  As shown in FIG. 19A, the front side structure 101 is combined with the back side structure 102 in a state where the receiving member 153 and the cover member 154 are installed in the coupling area forming portion 152 and the back side coupling area 151 is formed. Accordingly, as shown in FIG. 19B, the through-hole portion 144 of the first front-side coupling portion 142 and the corresponding through-hole portion 174 of the back-side coupling portion 176 are in communication with each other. In this case, the first front side coupling portion 142 naturally corresponds to each back side coupling portion 176 of the back side coupling region 151 by being regulated by the regulation means including the hook portion 111 and the locking receiver 121. The first front side coupling portion 142 is accommodated, and the through hole portions 144 and 174 are communicated as described above.

  After that, as shown in FIG. 19C, the first coupler 181 is inserted into the through holes 144 and 174 communicated with each other by inserting the first coupler 181 from the first front side coupler 142 side. The combination of the first front-side coupling portion 142 and the back-side coupling portion 176 into which is inserted is in a coupled state, and the front-side structure 101 and the back-side structure 102 are fixed. In this case, a plurality of combinations (specifically, two sets) of the first front side coupling portion 142 and the back side coupling portion 176 are provided, and the first coupling 181 is inserted into each of these combinations. Thus, the front side structure 101 and the back side structure 102 are fixed.

  In the manufacturing process of the main controller 63, as described above, the first front side coupling portion 142 and the back side coupling portion 176 are joined together with the second front side coupling portion 143 and the back side coupling portion 176 to be in a standby state (temporary). Preliminary work (to stop) is performed. The preliminary work will be described with reference to FIG. 18 again.

  After the joining work of the first front side joining part 142 and the back side joining part 176 is finished, the temporary fastening work of the second joining tool 183 is performed. Specifically, the second coupler 183 is inserted from the opening of the second housing recess 184 toward the through hole 144 of the second front coupling part 143. In this case, by pushing the base portion 183a of the second coupler 183 toward the through-hole portion 144, the base portion 183a is sandwiched between the restricting portion 143c and the peripheral wall portion 143b, and the moving direction is restricted. Is done. Almost in synchronization with this, the tip of the base portion 183a hits the locking claw portion 143d. By further pressing the second coupler 183, the locking claw 143d is fitted into the locking hole 183c, and the second coupler 183 is hooked with respect to the second front side coupling part 143. In such a case, the entire operation portion 183b is accommodated in the second accommodation recess 184. Thereby, pulling operation is made difficult, ensuring the operativity of pushing operation of the operation part 183b.

  In addition, after performing the temporary fixing operation | work of the 2nd coupling tool 183 detailed above, it is also possible to perform the coupling | bonding operation | work of the 1st front side coupling | bond part 142 and the back side coupling | bond part 176 mentioned above. In such a case, it may be configured such that the first front side coupling portion 142 and the back side coupling portion 176 can be coupled by temporarily fixing the second coupling tool 183.

  Next, with reference to FIG. 20, the flow of work when releasing the fixed state of the front-side structure 101 and the back-side structure 102 in a state where the first front-side connection part 142 and the back-side connection part 176 are in the combined state. explain. FIGS. 20A to 20C are explanatory diagrams for explaining the flow of work when the fixed state of the front side structure 101 and the back side structure 102 is released.

  When releasing the fixed state of the front-side structure 101 and the back-side structure 102, as shown in FIG. 20A, the connection between the first front-side coupling part 142 and the bulging part 104 in the coupled state is performed. While cutting the part 145, the connection part 146 between the 1st front side coupling | joint part 142 which is in a coupling | bonding state, and the 2nd front side coupling | bond part 143 which is not in a coupling | bonding state is cut | disconnected with tools, such as a nipper and a cutter. Thereby, the separation of the front side structure 101 and the back side structure 102 is not hindered by the connection of the first front side coupling part 142 and the back side coupling part 176.

  In this case, the connecting portions 145 and 146 are provided with respect to the first front side coupling portion 142, and the back side coupling region 151 is not destroyed. Therefore, the first front side coupling portion 142 in the coupled state remains on the back side coupling region 151 side. Further, since the first front side coupling portion 142 in the coupled state remains in this way, the cover member 154 is fixed to the coupling region forming portion 152 through the coupling between the first front side coupling portion 142 and the back side coupling portion 176. The maintained state is maintained.

  Thereafter, as shown in FIG. 20 (b), by sliding and moving at least one of the front side structure 101 or the back side structure 102 in the direction restricted by the restriction means comprising the hook portion 111 and the locking receiver 121, the hook The locked state between the portion 111 and the locking receiver 121 is released. After that, as shown in FIG. 20C, the front-side structure 101 and the back-side structure 102 are separated in the thickness direction of the substrate box 92, so that the structures 101 and 102 are completely separated. .

  In this case, since the connecting portion 145 is cut, it is possible to check whether or not the front-side structure 101 and the back-side structure 102 are separated by checking the cut portion of the connecting portion 145. Become.

  As described above, by releasing the fixed state of the two components 101 and 102, the main control board 91 and the CPU chip 93 can be exposed, and the main control board 91 and the CPU chip 93 can be inspected. . Both components 101 and 102 shown in the present embodiment can be re-boxed by separating the second front side coupling portion 143 and the back side coupling portion 176 after being separated.

  Here, the operation for re-fixing the two structural members 101 and 102 will be described with reference to FIGS. 17B, 18, 20D, and 20E. FIG. 20D and FIG. 20E are explanatory views for explaining the flow of work when the front-side structure 101 and the back-side structure 102 are re-fixed. Based on the operation of FIG. 20D → FIG. 20E, the second coupler 183 is shifted to the state of FIG. 18 → FIG. 17B.

  As shown in FIG. 20 (c), after separating both components 101 and 102 and inspecting the main control board 91 and the CPU chip 93, the components 101 and 102 are combined again (FIGS. 19 and 20). 20 (d)). In this state, the through hole portion 144 of the second front side coupling portion 143 and the through hole portion 174 of the back side coupling portion 176 are in communication with each other. Here, as shown in FIG. 18 and FIG. 20 (d), the second coupler 183 temporarily fixed by the locking claw 143d is pushed into the back side structure 102 side, and FIG. 17 (b) and FIG. The state is shifted to the state e) (see FIG. 18 for the locking claw 143d). As shown in FIG. 17B, the second coupler 183 pushed in is hooked with the locking piece 168, and the second front side coupling portion 143 and the back side coupling portion 176 are coupled. Thereby, the re-fixation of both the structural bodies 101 and 102 is completed.

  Unlike the first front side coupling portion 142, the second front side coupling portion 143 is not provided with a portion that facilitates cutting corresponding to the connecting portions 145 and 146. For this reason, after the 2nd front side coupling | bond part 143 is couple | bonded, the cancellation | release of the coupling | bonding state is difficult.

  Note that the second front side coupling portion 143 may have a configuration corresponding to the coupling portions 145 and 146 and the like that is easily cut off in the same manner as the first front side coupling portion 142.

  A configuration related to fixing the cover member 154 will be described. As shown in FIGS. 9 and 15B, a cylindrical portion 178 that stands up from the first cover plate portion 172 toward the front side structure 101 is integrally formed at the center of the first cover plate portion 172. The first cover plate portion 172 is formed with a round hole 179 that communicates with the hole portion 178 a of the cylindrical portion 178 and extends in the same direction as the axial direction of the cylindrical portion 178. More specifically, the hole 178a and the round hole 179 are continuous in a step shape, and the diameter of the hole is reduced in the round hole 179.

  9 and 14, the receiving member 153 is formed with a communication hole 169 communicating with the round hole 179, and the hole 178a, the round hole 179, and the communication hole 169 include the front side structure 101. A breaking screw 170 is inserted from the side. A mounting hole 159 into which the breaking screw 170 is screwed is formed in the back side structure 102, and the breaking screw 170 is screwed into the mounting hole 159, whereby the back side structure 102 and the receiving member are formed. 153 and the cover member 154 are integrated.

  This embodiment is characterized by the configuration of the breaking screw 170. The breaking screw 170 is a case where the latter is more difficult when comparing the mounting operation and the removing operation. It cannot be removed. In the present embodiment, a part of the breaking screw 170 is broken, so that it is difficult to remove the breaking screw 170. 21A is a front view of the breaking screw 170, FIG. 21B is a plan view of the breaking screw 170, and FIG. 21C is an exploded perspective view of the breaking screw 170. FIG. 21D is a cross-sectional view taken along the line CC of FIG. 21A, and FIG. 21E is a cross-sectional view showing a state in which the breaking screw 170 is broken.

  The breaking screw 170 includes a region having a head 250 into which a tip of a tool such as a screwdriver can be inserted, and a region having a shaft portion 255 in which a screw groove is formed. It is connected by.

  The head 250 has a cylindrical shape, and an operation groove 250a into which a tool such as a screwdriver is inserted is provided at the top. The operation groove 250 a is provided on the surface of the head 250 opposite to the shaft portion 255. By rotating the driver or the like in a state where the driver or the like is inserted into the operation groove 250a, the shaft portion 255 can be rotated about the axis.

  The head 250 is screwed with the breaking screw 170 when the tip of the tool is inserted and the tool is operated, so the head 250 can also be referred to as the “operation unit 250”.

  The shaft portion 255 is formed with a screw groove as described above, and enters the screw hole formed in the fastening target by rotating in accordance with an operation by the driver with respect to the head portion 250. In this case, the shaft portion 255 is formed with projections (not shown) so as to form a part of the screw grooves, and a large number of the projections are intermittently formed along the series of screw grooves. Such protrusions bite into the screw holes to be fastened, thereby obtaining a high locking effect.

  The breaking portion 260 is set to have a lower strength than other portions, and by applying a predetermined force or more to the head 250 at a position where it cannot be further tightened by the tool, the breaking portion 260 260 is cut, and the region on the head 250 side and the region on the shaft portion 255 side are separated. That is, the breaking screw 170 cannot be rotated in the loosening direction using the tool after screwing (after cutting).

  Specifically, on the head 250 side, the head 250 is extended to the shaft portion 255 side with the head 250 as one end, and the size in the radial direction is reduced as it extends from the head 250 side to the shaft portion 255 side. A narrowing portion 265a is provided, and further, the shaft portion 255 side of the fracture portion 260 extends from the shaft portion 255 side to the head portion 250 side, and as it extends from the shaft portion 255 side to the head portion 250 side. A shaft side narrowing portion 265b that is reduced in size in the radial direction is provided. End portions facing each other on the reduced side of each of the narrowed portions 265a and 265b are continuous, and the continuous portion is a broken portion 260. That is, the fracture | rupture part 260 is lower than the other site | part by the diameter being formed smaller than another site | part. By providing the breakage portion 260 in this manner, the breakage portion 260 is easily cut when a predetermined force or more is applied to the head 250 at a position where it cannot be further tightened by the tool.

  The breaking screw 170 has a first enlarged diameter portion 275 a that is sandwiched between the shaft portion 255 and the breaking portion 260 and is expanded in the radial direction of the shaft portion 255. On the shaft portion 255 side of the first diameter-expanded portion 275a, a second diameter-expanded portion 275b that is reduced in the radial direction than the first diameter-expanded portion 275a and expanded in the diameter direction of the shaft portion 255 is provided. Yes. The 1st enlarged diameter part 275a and the 2nd enlarged diameter part 275b are provided continuously.

  A holder 278 is integrated with the breaking screw 170. The holder 278 will be described in detail below. The holder 278 has a cylindrical shape having a through-hole 280 penetrating in the axial direction, and is provided so as to cover a part of the second enlarged diameter portion 275 b from the head 250 in the breaking screw 170. In this case, the holder 278 is arranged so that the axis of the through hole 280 is collinear with the axis of the breaking screw 170.

  A plurality of step portions are formed in the axial direction in the through hole 280 of the holder 278, and the diameter of the through hole 280 is changed in a plurality of steps in the axial direction by these step portions. Specifically, with respect to the through hole 280, the first hole 280a including one opening in the through hole 280 is formed to have a larger diameter than the outer diameter of the head 250, and the first hole 280a. Is opposed to the peripheral surface of the head 250 where the operation groove 250a is formed. In this case, a gap is generated between the peripheral surface of the first hole 280a and the peripheral surface of the head 250. Incidentally, the hole length of the first hole portion 280a is set to be smaller than the length dimension of the head portion 250 in the axial direction.

  The through hole 280 includes a second opening 290b opposite to the first opening 290a on the first hole 280a side, and has a second hole 280b having a diameter larger than that of the first hole 280a. The second hole portion 280b is formed so as to have a larger hole diameter than the outer diameter of the first enlarged diameter portion 275a of the breaking screw 170. In this case, a gap is generated between the peripheral surface of the second hole portion 280b and the peripheral surface of the first enlarged diameter portion 275a. Further, the hole length of the second hole portion 280b is set to be larger than the length dimension in the axial direction of the first diameter-expanded portion 275a, and the peripheral surface defining the second hole portion 280b is the first diameter-expanded portion 275a. It faces the whole of the circumference. Thus, in the configuration in which the hole diameter and the hole length of the second hole portion 280b are set, the hole diameter of the first hole portion 280a is set larger than the outer diameter of the head 250 as described above. , Relative to the breaking screw 170 in the axial direction. In this relative movement, the first enlarged diameter portion 275a moves in the axial direction in the second hole portion 280b.

  An annular reduced diameter portion 278a that protrudes inward and has an annular shape is integrally formed at a portion that defines the periphery of the second opening 290b on the peripheral surface of the second hole portion 280b, and the annular reduced diameter portion 278a is formed. In the part, the hole diameter is smaller than the outer diameter of the first enlarged portion 275a. Thereby, even if the 1st enlarged diameter part 275a is moved to the 2nd opening 290b side in the 2nd hole 280b, the cyclic | annular level | step difference surface between the 1st enlarged diameter part 275a and the 2nd enlarged diameter part 275b When 295 abuts on the annular step surface 296 in the annular reduced diameter portion 278a, further movement is restricted. Such restriction prevents the breaking screw 170 from coming off from the second opening 290b side.

  Further, a third hole 280c having a diameter larger than that of the first hole 280a and a diameter smaller than that of the second hole 280b is provided between the second hole 280b and the first hole 280a. Is formed. An annular step surface 297 is formed between the second hole portion 280b and the third hole portion 280c, and the hole diameter of the third hole portion 280c is set smaller than the outer diameter of the first enlarged diameter portion 275a. As a result, even if the first enlarged diameter portion 275a is moved to the third hole portion 280c side in the second hole portion 280b, the anti-second in the first enlarged diameter portion 275a with respect to the annular step surface 297 is obtained. When the peripheral edge of the end surface 300 on the side of the 2 enlarged-diameter portion 275b abuts, further movement is restricted. Such restriction prevents the breaking screw 170 from coming off from the first opening 290a side.

  As described above, with respect to the second hole portion 280b, the step surface 295 between the first enlarged diameter portion 275a and the second enlarged diameter portion 275b and the step surface 296 facing the end surface 300 of the first enlarged diameter portion 275a, respectively. , 297 are formed, the relative position of the first enlarged diameter portion 275a to the holder 278 is defined within the range of the second hole portion 280b. In other words, as the relative position of the holder 278 with respect to the breaking screw 170, the first position where the end surface 300 of the first enlarged diameter portion 275a abuts on the step surface 297 between the second hole portion 280b and the third hole portion 280c. And a second position at which the step surface 295 between the first enlarged diameter portion 275a and the second enlarged diameter portion 275b contacts the stepped surface 296 of the annular reduced diameter portion 278a of the second hole portion 280b is set. The relative position can be changed to any position in the range between the first position and the second position.

  In this case, in a situation where the relative position of the holder 278 with respect to the breaking screw 170 is the first position, the holder 278 prevents the annular diameter-reduced portion 278a from projecting toward the shaft portion 255 from the second diameter-increased portion 275b. Is formed. When the annular diameter-reduced portion 278a is movable to the shaft portion 255 side relative to the second diameter-increased portion 275b, when the members 153 and 154 are fixed by the breaking screw 170, the annular diameter-reduced portion 278a and the holder are attached to the cover member 154. 278 contacts. In this case, when the holder 278 is rotated, the rotational force is easily transmitted to the shaft portion 255, and the shaft portion 255 may be loosened by rotating the holder 278. In the present embodiment, when the holder 278 is rotated because the holder 278 does not contact the object to be fixed, the rotation is hardly transmitted to the shaft portion 255.

  Here, the fracture | rupture screw 170 is provided with the fracture | rupture part 260 as mentioned above, and can be isolate | separated into the head 250 side and the axial part 255 side. In this case, the holder 278 is provided with a structure that makes it impossible to remove the head 250 from the holder 278 after the breaking portion 260 is broken. Therefore, the following structure will be described with reference to FIG. 22 in addition to FIG. FIG. 22A shows a state in which the fracture portion 260 is fractured and the holder 278 is located at the first position. FIG. 22B shows a state in which the head 250 is inclined in FIG. FIG. 22C shows a state in which the fracture portion 260 is fractured and the holder 278 is located at the second position. Note that FIG. 22 is used for explaining the length and range of each part, and the member numbers are omitted.

  In a situation where the relative position of the holder 278 with respect to the breaking screw 170 is the first position, the surface on the side where the operation groove 250a is formed in the head 250 (hereinafter, this surface is referred to as the operation surface 250b) is the first hole. The operation surface 250b is maintained in the first hole 280a even when the holder 278 is in the second position with respect to the breaking screw 170 while entering the portion 280a. Thus, the hole length of the first hole 280a is set. Specifically, the length Y1 of the first hole 280a in the axial direction is larger than the movement range Y2 of the holder 278 from the first position to the second position. When the holder 278 is located at the first position and the head portion 250 is inclined, the end portion located on the shaft portion 255 side of the operation surface 250b enters the first hole portion 280a by the length Y3. (See FIG. 22B). Further, when the holder 278 is located at the second position and the head portion 250 is inclined, the end portion located on the shaft portion 255 side of the operation surface 250b enters the first hole portion 280a by the length Y4. (See FIG. 22C).

  With the above configuration, the operation surface 250b is positioned within the diameter Y5 of the first hole 280a regardless of the relative position of the holder 278. Therefore, the head 250 can move within the diameter Y5 of the first hole 280a in the direction orthogonal to the axial direction. As a result, the head 250 can move within a gap region formed by the diameter Y5 of the first hole 280a and the diameter Y6 of the head 250. In the present embodiment, the gap region formed by the diameter Y5 of the first hole 280a and the diameter Y6 of the head 250 is set to be small (set so as to be hardly present). With this dimensional relationship, the center axis of rotation of the shaft portion 255 viewed from the first opening 290a is always included, including the case where the peripheral surface of the head portion 250 and the peripheral surface of the first hole portion 280a are in contact with each other. Can be shielded. That is, the head portion 250 is always located on the axis line of the shaft portion 255 when the breaking portion 260 is broken, and the axis line of the shaft portion 255 is located in the region opposite to the shaft portion 255 of the shaft portion side narrowing portion 265b. The part which passes is shielded as seen from the first opening 290a.

  The relationship between the diameter Y5 of the first hole 280a and the diameter Y6 of the head 250 may be changed. However, it is desirable that the head portion 250 shields the axis of the shaft portion 255. Specifically, it is desirable that the relationship of (diameter Y5−diameter Y6) <(diameter Y6 ÷ 2) be satisfied.

  Furthermore, as already described, the second hole 280b is formed in the through hole 280 of the holder 278 so as to have a diameter larger than that of the first hole 280a. Thus, an annular step surface 301 is formed between the two hole portions 280a and 280b. Corresponding to the stepped surface 301, a locking portion is provided at the boundary portion between the head 250 and the head-side restricting portion 265 a in the breaking screw 170 so as to protrude radially outward from the peripheral surface of the head 250. An annular flange portion 305 is integrally formed. The outer diameter of the flange portion 305 is set larger than the hole diameter of the first hole portion 280a. In this case, in a situation where the relative position of the holder 278 with respect to the breaking screw 170 is the first position, the flange portion 305 is disposed on the second opening 290b side with respect to the step surface 301, and the flange portion 305 is disposed. The flange surface 310 facing the first opening 290 a faces the step surface 301. Specifically, when the holder 278 is positioned at the first position and the axis of the shaft portion 255 is orthogonal to the operation surface 250b, the step surface formed by the first and second hole portions 280a and 280b from the flange surface 310. The length Y7 up to 301 is smaller than the length Y8 from the operation surface 250b to the outside of the holder 278. The length Y7 to the step surface is a range in which the head 250 can move in the axial direction of the shaft portion 255. By making the movable range of the head 250 smaller than the distance from the end surface to the outside of the holder 278, when the head 250 moves to the opposite shaft portion 255 side, a part of the head 250 moves outside the holder 278. Positioning can be prevented.

  Note that the holder 278 is formed so that the length Y7 does not become zero regardless of the position of the holder 278 in a state before the breaking portion 260 is broken. That is, in the state before the fracture portion 260 is fractured, the flange surface 310 and the step surface 301 are not in contact with each other when the holder 278 is located at the first position. When the flange surface 310 and the stepped surface 301 come into contact with each other, when an external force is applied to the holder 278, the external force is easily transmitted to the fracture portion 260. As described above, if the fracture portion 260 is lower in strength than other portions, and external force is easily transmitted from the holder 278 to the fracture portion 260, an unintentional fracture occurs during transportation of the fracture screw 170, installation work of the fracture screw 170, or the like. It is conceivable that the portion 260 is broken. Ensuring the length Y7 regardless of the position of the holder 278 is an ingenuity for suppressing an unintended breakage of the breakage portion 260 because the external force applied to the holder 278 is not easily transmitted to the breakage portion 260.

  With the above configuration, even if the head 250 is to be removed from the holder 278 after the fracture portion 260 is separated, the head 250 is more anti-axial than the state in which the flange surface 310 is in contact with the stepped surface 301. It cannot be moved to the portion 255 side, and it can be suppressed that all of the head portion 250 is located outside the holder 278 and by extension, the first hole portion 280a.

  In the present embodiment, when viewed in the axial direction, the through-hole 280 in the holder 278 is provided in a circular shape, and each part of the breaking screw 170 is also formed in a circular shape. Thereby, when the breaking screw 170 rotates, the rotation is not hindered by the holder 278. That is, the breaking screw 170 and the holder 278 have no portion that is locked with respect to the rotation direction of the shaft portion 255. For example, after the fracture portion 260 is fractured, a resin or the like is poured into the holder 278 so that the holder 278 and the fracture screw 170 are integrated, and then the holder 278 is rotated and the shaft portion 255 is rotated in a loosening direction. Cheating is considered. In this embodiment, since there is no portion locked in the rotational direction between the holder 278 and the breaking screw 170, even if resin is poured, the holder 278 and the breaking screw 170 are easily slipped, and the holder 278 and the breaking screw 170 are slipped. Can be prevented from being integrated.

  Here, the structure regarding fixation of the cover member 154 is demonstrated using FIG.9 and FIG.23 (a), (b). 23A and 23B are partial cross-sectional views taken along the line DD of FIG.

  As shown in FIG. 23A, the breaking screw 170 is inserted from above the cylindrical portion 178 toward the cover member 154. When the breaking screw 170 is inserted into the cylindrical portion 178, the breaking screw 170 is accommodated in the hole 178a of the cylindrical portion 178 as shown in FIG. That is, all of the holders 278 in the breaking screw 170 are accommodated inside the cylindrical portion 178, and the breaking screw 170 is surrounded by the cylindrical portion 178. If attention is paid to the function of surrounding the breaking screw 170 in this way, the cylindrical portion 178 can also be referred to as an “enclosure” or an “accommodating portion”. The shaft portion 255 can be rotated by inserting a tool such as a screwdriver into the head 250 (operation groove 250a) of the breaking screw 170 and operating the tool. By rotating the shaft portion 255, as shown in FIG. 23B, the shaft portion 255 in the breaking screw 170 can be fixed in a state where the receiving member 153 (the back side structure 102) and the cover member 154 are fastened. .

  The case where the fracture | rupture part 260 in the fracture | rupture screw 170 is cut | disconnected after connecting the receiving member 153 and the cover member 154 is demonstrated. FIG. 24A is a schematic view showing a state before the breaking portion 260 of the breaking screw 170 is cut, and FIG. 24B is a schematic view showing a state after the breaking portion 260 of the breaking screw 170 is cut. FIG. 24A and 24B are enlarged views around the cylindrical portion 178 in FIG.

  In the state where the shaft portion 255 cannot be tightened any more, if the break screw 170 is to be rotated in the tightening direction, the break portion 260 is cut. Thereby, it can suppress that fixing of the receiving member 153 and the cover member 154 is illegally cancelled | released. When the breaking screw 170 is broken, the head 250 can move in the axial direction and in a direction perpendicular to the axis (FIG. 24A → FIG. 24B). As described above, even if the head portion 250 is to be removed from the holder 278 after the fracture portion 260 is separated, the head portion 250 is more on the side opposite to the shaft portion 255 than when the flange surface 310 is in contact with the stepped surface 301. Since it does not move, the head 250 does not move to an unintended location. Thereby, in the assembly operation of the pachinko machine 10, the operation of recovering the head 250 after inserting the breaking screw 170 into the cover member 154 and separating the breaking portion 260 becomes unnecessary.

  Even in a situation where the relative position of the holder 278 is the second position, when the head 250 is tilted to an arbitrary position with respect to the axis of the shaft portion 255, the peripheral surface of the head 250 is the first surface. It comes in contact with the hole 280a. Thereby, since the peripheral surface of the head 250 abuts on the first hole 280a, the head 250 shields the shaft side restricting portion 265b from the first opening 290a even after being separated. Thereby, it is possible to suppress direct access from the first opening 290a to the shaft portion side narrowing portion 265b and thus the shaft portion 255.

  As described above, when the fracture portion 260 of the fracture screw 170 is fractured, the shaft portion 255 cannot be rotated in the direction of loosening when the head portion 250 is separated. However, the resin 250, the adhesive, or the like is poured from the first opening 290a in the holder 278, and the head portion 250 and the shaft portion 255 are integrated after the break portion 260 is broken, or the holder 278 and the shaft portion 255 are integrated. It is possible that When the respective parts are integrated, it is conceivable that the rotational force is transmitted to the shaft part 255 by rotating the head part 250 or the holder 278. In this embodiment, it has the characteristic structure for suppressing the fraud using resin, an adhesive agent, etc.

  A screw-side uneven portion 275c having a sharp tip is provided on the surface of the second enlarged diameter portion 275b of the breaking screw 170 on the shaft portion 255 side. The screw side uneven portion 275c is formed by a plurality of uneven portions. In addition, on the bottom of the cylindrical portion 178 in the cover member 154, a cylindrical portion-side uneven portion 178b and a contact portion 178c formed by a plurality of unevenness are provided. Such a configuration will be described with reference to FIGS. 25 and 26 in addition to FIG. FIG. 25A is a bottom view of the breaking screw 170 as seen from the opposite head 250 side. FIG. 25B is a plan view of the cylindrical portion 178. FIG. 26 is an explanatory diagram showing a state where the screw side uneven portion 275c and the contact portion 178c are in contact. In FIG. 25, the positional relationship when the breaking screw 170 is installed in the cylindrical portion 178 is indicated by an auxiliary line.

  The contact portion 178c defines the peripheral edge of the round hole 179 on the side of the receiving member 153. The tube-side uneven portion 178b is provided so as to be recessed from the contact portion 178c. Specifically, the peak on the peak side of the cylindrical side uneven portion 178b is the same height as the contact surface 311 defining the top of the contact portion 178c, and the bottom surface on the valley side of the cylindrical side uneven portion 178b contacts It is located closer to the round hole 179 than the surface 311.

  Since the contact surface 311 (contact portion 178c) and the screw side uneven portion 275c contact each other, the breaking screw 170 cannot be screwed further to the cover member 154 side. That is, the screw-side uneven portion 275c is prevented from moving to the round hole 179 side from the contact portion 178c. In addition, the uneven part is formed so that the screw side uneven part 275c bites the contact part 178c, and the effect of suppressing the shaft part 255 from rotating in the loosening direction due to vibration or the like is obtained.

  The screw-side uneven portion 275c is provided on the entire surface on the shaft portion 255 side of the second enlarged diameter portion 275b. That is, the cylindrical side uneven portion 178b and the contact portion 178c in the cylindrical portion 178 are hidden from the head 250 side. With this configuration, the screw-side uneven portion 275c and the tube-side uneven portion 178b face each other. A slight gap is formed by the concave portions of the concave and convex portions 178b and 275c. In addition, the plurality of projections and depressions in each of the projections and depressions 178b and 275c are provided so as to be radial with the axis of the shaft portion 255 as the center.

  In addition, the bottom surface of the cylindrical portion 178 is provided with an inclined surface 178d that descends from the side surface of the cylindrical portion 178 toward the cylindrical side uneven portion 178b. That is, the bottom portion of the cylindrical portion 178 is formed in a mortar shape from the peripheral surface of the cylindrical portion 178 toward the round hole 179 of the cylindrical portion 178.

  It is conceivable that a fraudulent act in which the head portion 250 or the holder 278 and the shaft portion 255 are integrated is performed after the fracture portion 260 is fractured by pouring resin, adhesive, or the like. In this embodiment, when a resin, an adhesive, or the like is poured, the inclined surface 178d is provided so that the resin, the adhesive, etc. can easily flow into a region where the concave and convex portions 178b, 275c face each other. .

  When the resin, adhesive, or the like flows into a region where the concave and convex portions 178b, 275c are opposed to each other and the resin, adhesive, etc. are hardened, the breaking screw 170 and the cover member 154 are integrated. As a result, the shaft portion 255 can be prevented from rotating in the loosening direction, and the fastening of the members 153 and 154 can be prevented from being illegally released. The above-described contact portion 178c is provided to prevent the screw-side uneven portion 275c from being completely in close contact with the tube-side uneven portion 178b and eliminating a gap through which resin or adhesive flows. It is a device.

  However, even if the region on the shaft portion 255 side and the cover member 154 are integrated with resin, adhesive, or the like, the shaft portion 255 is applied when a rotational force is applied in the direction of loosening the shaft portion 255 in that state. It is conceivable that the resin or adhesive at the part where the cover member 154 is integrated is broken and the integration is released. In this embodiment, when a resin, an adhesive, or the like flows, the resin, the adhesive, or the like is hardened in a state where the unevenness is provided. In this case, the unevenness of the resin, adhesive, or the like is brought into mesh with the uneven portions 178b, 275c, and the strength when the breaking screw 170 and the cover member 154 are integrated with the resin, adhesive, etc. is increased. Can do.

  Furthermore, supplementally, as described above, the head portion 250 and each of the enlarged diameter portions 275a and 275b and the holder 278 have no portion locked with respect to the rotation direction of the shaft portion 255. That is, the holder 278, the head portion 250, and the respective enlarged diameter portions 275a and 275b are easily slipped. As a result, when resin, adhesive, or the like is poured into the holder 278 after the fracture portion 260 is fractured, the shaft portion 255 side is more fixed than the fixing of the head 250 and the respective enlarged diameter portions 275a, 275b inside the holder 278. The strength of the fixing between the region and the cover member 154 increases. As a result, when the resin 255, the adhesive, or the like is poured and the shaft 255 is rotated in the loosening direction in a state where the parts of the breaking screw 170 and the cover member 154 are integrated, the holder 278 and the head 250 and The resin, adhesive, or the like at the portion fixed to each of the enlarged diameter portions 275a and 275b is broken. That is, by providing a portion with a lower fixing strength inside the holder 278 than a portion where the cover member 154 and the breaking screw 170 are integrated, the integration of the cover member 154 and the breaking screw 170 is released. An effect of suppressing this can be obtained.

  In addition, since the plurality of grooves are provided in the cylindrical portion-side uneven portion 178b, the resin, adhesive, or the like that has flowed from the holder 278 to the shaft portion 255 side easily flows into any of the plurality of uneven portions. Yes. Thereby, even if the resin or the adhesive reaches the shaft 255 side from the holder 278, the resin, the adhesive, or the like is prevented from flowing into the cylindrical side uneven portion 178b. Further, since the plurality of unevennesses in each of the uneven portions 178b and 275c are provided so as to be radial about the axis of the shaft portion 255, the wall surface forming the unevenness in each of the uneven portions 178b and 275c is the shaft portion 255. It becomes possible to provide orthogonally with respect to the direction which loosens. As a result, when resin, adhesive, or the like is poured, it is possible to sufficiently secure the bonding area of the resin, adhesive, etc. in the direction in which the shaft portion 255 is loosened, and the cover member 154 and the breaking screw 170 are It is possible to further increase the fixing strength when integrated.

  Here, the manufacturing method of the fracture | rupture screw 170 is demonstrated using FIG.

  Fig.27 (a) is a figure which shows the coil C (rope shape) made from metal (for example, steel (carbon steel)). This coil C becomes the material of the breaking screw 170. In FIG. 27B, pressure is applied to a part of the coil C from the axial direction. Specifically, pressure is applied from the axial direction of the coil C after being surrounded by a jig from the radial side of the coil C. When the pressure is applied, a portion where the jig is not provided is expanded in the radial direction along the jig. Pressure is applied from the radial direction so that the radially expanded portion has a cylindrical shape. Thereby, the 2nd enlarged diameter part 275b in the fracture | rupture screw 170 is formed.

  After forming the second enlarged diameter portion 275b, a jig is installed so as to surround the second enlarged diameter portion 275b of the coil C from the radial direction as shown in FIG. After the jig is installed, pressure is applied from the axial direction of the coiled material as in FIG. The coil-shaped material is expanded in the radial direction along the jig, and a portion having a larger diameter than the second expanded portion 275b is formed so as to be in contact with the second expanded portion 275b. By applying pressure from the radial direction so that the large-diameter portion has a columnar shape, the first large-diameter portion 275a having a larger diameter than the second large-diameter portion 275b is formed.

  After forming the enlarged diameter portions 275a and 275b, a thread groove is formed in a portion continuous with the second enlarged diameter portion 275b (a portion opposite to the first enlarged diameter portion 275a with the second enlarged diameter portion 275b in between). To do. Thereby, as shown in FIG.27 (d), the axial part 255 is formed. In addition, after forming a thread groove, you may provide the process which cut | disconnects a part (tip) of the part provided with the thread groove, and the length of the axial part 255 becomes uniform.

  After the shaft portion 255 is formed, a jig is installed so as to surround a portion provided on the opposite side of the shaft portion 255 with the first enlarged diameter portion 275a interposed therebetween (not shown). This jig has a smaller diameter than the first enlarged diameter portion 275a. After the jig is installed, pressure is applied to the coiled material in the axial direction and in the direction of the first enlarged diameter portion 275a. Thereafter, the remaining coiled material is cut. As a result, as shown in FIG. 27E, a radially expanded portion is formed on the opposite side of the shaft portion 255 with the first expanded diameter portion 275a interposed therebetween. As shown in FIG. 27 (f), a groove is formed on the side surface opposite to the shaft portion 255 of the radially expanded portion. Thereby, the operation groove 250a is formed.

  As shown in FIG. 27G, pressure is applied to a part of the radially expanded portion formed in FIGS. 27E and 27F from the radial direction. Thereby, the part reduced with respect to radial direction is formed by applying a pressure from radial direction. This reduced portion is a broken portion 260. By the process of forming the breaking portion 260, the head 250, the head-side restricting portion 265a, and the shaft-side restricting portion 265b are formed. When the head-side restricting portion 265 a is formed, a part of the head-side restricting portion 265 a on the head 250 side becomes larger in diameter than the head 250 by applying pressure from the radial direction. This large diameter portion is the flange portion 305.

  After that, a groove is formed so as to form irregularities on the surface of the second enlarged diameter portion 275b on the shaft portion 255 side. Thereby, the screw side uneven part 275c is formed. At this stage, the coil C becomes a screw member having the same shape as the breaking screw 170. After the screw side uneven portion 275c is formed, the screw member is plated. This plating process is a device for preventing the screw member from being corroded.

  By executing the above steps, the fracture screw 170 can be manufactured from the coil C as shown in FIG. In addition, it is not necessary to manufacture the breaking screw 170 by applying pressure to the coil-shaped material described above. The breaking screw 170 may be produced by molding using a mold, or more than the first diameter-expanded portion 275a. The breaking screw 170 may be manufactured by cutting out from a large-diameter coil-shaped material.

  A process for attaching the holder 278 that accommodates the breaking screw 170 will be described with reference to FIG. In the present embodiment, the holder 278 is manufactured by molding by molding a metal material (for example, steel (carbon steel)) after pouring the metal material into a mold.

  The holder 278 is not formed with the annular diameter-reduced portion 278a in the initial stage. The portion where the annular reduced diameter portion 278a is formed protrudes in the axial direction of the shaft portion 255 in a state where the breaking screw 170 is accommodated therein, and is an annular surface that is flush with the inner peripheral surface of the holder 278. A protrusion 278b is provided. That is, the insertion / extraction of the breaking screw 170 from the side opposite to the first hole 280a is not hindered. The annular protrusion 278b is provided so as to form a step with the outer peripheral surface of the holder 278. Therefore, the annular protrusion 278b has a smaller thickness than other portions.

  When attaching the holder 278, as shown in FIG. 28 (a), the breaking screw 170 and the holder 278 are installed so that the head 250 of the breaking screw 170 is accommodated in the first hole 280a of the holder 278. To do. Thereafter, a pressure is applied to the annular protrusion 278b by a jig so as to form the annular reduced diameter portion 278a from the shaft portion 255 side, and bending processing is performed to bend a part of the holder 278 on the shaft portion 255 side. Thereby, as shown in FIG. 28B, an annular reduced diameter portion 278a is formed, and the holder 278 and the breaking screw 170 are integrated.

  In the present embodiment, when bending is performed, the outer periphery of the base end side of the annular projection 278b is used to prevent the holder 278 from being cut at the portion where the annular reduced diameter portion 278a is formed. A curved surface 278c is provided at (step portion). In addition, since the step is provided between the outer peripheral surface of the annular protrusion 278b and the outer peripheral surface of the holder 278, the outer periphery of the holder 278 is not easily deformed when the annular protrusion 278b is bent toward the inner peripheral side. In this case, since the outer periphery of the holder 278 can be flush, when the holder 278 is installed, it is possible to reduce the gap between the holder and the place where the holder is installed. it can.

  In the present embodiment, the outer diameter (so-called nominal diameter) of the shaft portion 255 is 3 mm, but is not limited to this. For example, the outer diameter can be 0.3 mm to 10 mm. However, it is desirable that the outer diameter of the shaft portion 255 be 1 mm to 5 mm. By setting the outer diameter of the shaft portion 255 to 1 mm to 5 mm, the shaft portion 255 is not excessively thick, and it is possible to give the shaft portion 255 an appropriate strength after fastening each member.

  In addition, when the outer diameter of the shaft portion 255 is 3 mm, the following dimensions are desirable.

  The outer diameter of the head 250 in the breaking screw 170 is 5 mm. Although the outer diameter of the head 250 may be changed, it is desirable that the outer diameter be 4 mm to 6 mm. If the head 250 is too large, it is necessary to secure a large space for installing the breaking screw 170 in the pachinko machine 10, and if the head 250 is too small, the size of the operation groove 250a is reduced and the breaking screw 170 is rotated. This is because it becomes difficult.

  The outer diameter of the holder 278 is desirably about twice that of the head 250 of the breaking screw 170. In this embodiment, the outer diameter of the holder 278 is 10 mm. The outer diameter of the holder 278 can be changed. For example, the outer diameter of the holder 278 can be 7 mm to 15 mm. However, the outer diameter of the holder 278 is desirably 8 mm to 12 mm. This is because when the holder 278 is too large, it is necessary to secure a large space for installing the holder 278. Moreover, it is because the magnitude | size of the 1st opening 290a in the holder 278 can be made into the magnitude | size which does not prevent inserting tools, such as a driver, by setting it as 8 mm-12 mm.

  The thickness of the annular protrusion 278b (see FIG. 28A) when the holder 278 is attached to the breaking screw 170 is 0.5 mm, but is not limited thereto. For example, the thickness of the annular protrusion 278b can be 0.3 mm to 0.9 mm. However, the thickness of the annular protrusion 278b is desirably 0.4 mm to 0.6 mm. If the annular protrusion 278b is too thick, it is difficult to bend the annular protrusion 278b. This is because it is considered that the strength of the diameter portion 278a cannot be secured sufficiently. This is because if the strength of the annular reduced diameter portion 278a is not sufficient, when the fracture screw 170 is pulled out toward the annular reduced diameter portion 278a, the annular reduced diameter portion 278a is deformed and the fracture screw 170 may come off.

  In the present embodiment, the radius of curvature of the curved surface 278c is 0.3 mm, but is not limited to this. For example, it can be 0.1 mm to 1 mm. However, it is desirable that the thickness is 0.2 mm to 0.5 mm. Moreover, although the amount of steps formed by the outer periphery of the holder 278 and the outer periphery of the annular protrusion 278b is 0.3 mm, it is sufficient that at least 0.1 mm or more is provided. When the curvature radius is too large, the outer periphery of the holder 278 is deformed when the annular protrusion 278b is bent. Further, when the radius of curvature and the step amount are too small, the bending work is difficult to perform.

  By making each dimension as described above, it is possible to ensure the strength while improving workability. Furthermore, when it is set as the said dimension, it becomes possible to reduce the variation in the dimension after a process.

  Next, another fixing structure provided in the substrate box 92 will be briefly described.

  As shown in FIG. 8, a pasting plate portion 191 is provided on the short side portion of the substrate box 92 opposite to the side on which the front side binding region 141 and the back side binding region 151 are provided. The affixing plate part 191 is configured by superimposing an affixing plate part formed on the front-side component 101 and an affixing plate part formed on the back-side component 102. A seal seal 192 is attached to the sticking plate portion 191 so as to straddle the boundary between the two. When the seal seal 192 is peeled off after being stuck, the pressure-sensitive adhesive layer remains on the sticking plate portion 191 side, and re-sticking becomes impossible.

  A fixing portion 193 is provided on the short side portion of the substrate box 92 where the sticking plate portion 191 is provided so as to sandwich the sticking plate portion 191, and screws are fixed to the fixing portion 193. Thus, the front side structure 101 and the back side structure 102 are fixed. Note that the breaking screw 170 described above may be used for fixing the front-side structure 101 and the back-side structure 102.

  Next, the electrical configuration of the pachinko machine 10 will be described based on the block diagram of FIG. In FIG. 29, a power supply line is indicated by a double line arrow, and a signal line is indicated by a solid line arrow.

  The main control board 91 provided in the main controller 63 incorporates a main control circuit 202 and a power failure monitoring circuit 203. A CPU chip 93 is mounted on the main control circuit 202. The CPU chip 93 temporarily stores various control programs executed by the CPU chip 93 and ROM 205 storing fixed value data, and various data when the control program stored in the ROM 205 is executed. And a RAM 206 as a memory for the memory, and various circuits such as an interrupt circuit, a timer circuit, and a data input / output circuit.

  The CPU chip 93 is provided with an input port and an output port. Connected to the input side of the CPU chip 93 are a power failure monitoring circuit 203 provided on the main control board 91, a payout control board 211 provided on the payout control device 82, and a switch group (not shown). In this case, the power failure monitoring circuit 203 is connected to a power source and launch control board 215 provided in the power source and launch control device 83, and power is supplied to the CPU chip 93 via the power failure monitoring circuit 203.

  On the other hand, a power failure monitoring circuit 203, a payout control board 211 and a relay terminal board 219 are connected to the output side of the CPU chip 93. Various commands such as a prize ball command are output to the payout control board 211. Various commands and the like are output from the main control circuit 202 to the sound lamp control board 221 provided in the sound lamp control device 66 via the relay terminal plate 219.

  The power failure monitoring circuit 203 relays between the main control circuit 202 and the power source and launch control board 215, and monitors a DC stable voltage of 24 volts that is the maximum voltage output from the power source and launch control board 215.

  The payout control board 211 performs payout control of prize balls and rental balls by the payout device 78. The CPU 212 that is an arithmetic unit includes a ROM 213 that stores a control program executed by the CPU 212, fixed value data, and the like, and a RAM 214 that is used as a work memory or the like.

  The CPU 212 of the payout control board 211 is provided with an input / output port. A main control circuit 202, a power and launch control board 215, and a back pack board 79 are connected to the input side of the CPU 212. The main control circuit 202 and the back pack substrate 79 are connected to the output side of the CPU 212.

  The power source and launch control board 215 includes a power source unit 216 and a launch control unit 217. The power supply unit 216 is connected to, for example, a commercial power supply (external power supply) in a game hall or the like. Then, based on the external power supplied from the commercial power supply, necessary operating power is generated for each of the main control circuit 202, the payout control board 211, etc., and the generated operating power is indicated by a double line arrow. This is supplied to the main control circuit 202 and the payout control board 211 through the path. The launch control unit 217 is responsible for launch control of the game ball launch mechanism 50, and the game ball launch mechanism 50 is driven when predetermined launch conditions are met.

  The sound lamp control board 221 controls the display control device 225. The CPU 222 that is an arithmetic unit includes a ROM 223 that stores a control program executed by the CPU 222, fixed value data, and the like, and a RAM 224 that is used as a work memory or the like.

  The CPU 222 of the sound lamp control board 221 is provided with an input / output port. A main control circuit 202 is connected to the input side of the CPU 222 through a relay terminal board 219 and controls the display control device 225 based on various commands output from the main control circuit 202. The display control device 225 controls the symbol display device 41 based on a display command input from the sound lamp control board 221.

  According to the embodiment described in detail above, the following excellent effects are obtained.

The receiving member 153 and the cover member 154 can be fastened by the shaft portion 255 of the breaking screw 170. After the receiving member 153 and the cover member 154 are fastened, the shaft portion 255 and the head portion 250 can be separated by applying a rotational force of a predetermined torque or more to the operation groove 250a that is a tool engaging portion. Separation of the head portion 250 and the shaft portion 255 makes it impossible to rotate the shaft portion 255 and suppresses the fastening of the receiving member 153 and the cover member 154 from being illegally released. The separated head 250 is held by the holder 278. As a result, the head 250 remains in the holder 278, and the work of collecting the separated head 250 is not necessary. If the separated head 250 needs to be collected, if the separated head 250 cannot be collected, the head 250 remains in the path of the game balls and the game balls can be smoothly distributed. It is considered that this may be a cause of malfunction or failure, such as obstructing the head or causing the head 250 to interfere with an electrical component and cause a short circuit. Therefore, in this embodiment, since it is not necessary to collect | recover the isolate | separated head 250, while being able to improve the assembly operation efficiency of the pachinko machine 10, it can suppress that the said problem generate | occur | produces.
The configuration is such that the breaking screw 170 and the holder 278 are integrated, and the separated head 250 remains in the holder 278. In this case, it can be said that the holder 278 is provided on the breaking screw 170. However, if the breaking screw 170 is installed when the members 153 and 154 are fastened, the holder 278 can be installed at the same time. Therefore, in the configuration having the holder 278 that holds the head 250 when the head 250 is separated, it is possible to prevent the assembly work from becoming complicated.

  The head 250 is covered with a holder 278. When the head 250 is separated, it is difficult to specify the moving direction because the head 250 rolls, but the head 250 moves outside the holder 278 by covering the head 250. Can be suppressed. Therefore, the separated head 250 can be held inside the holder 278 without providing a member other than the holder 278.

  The second enlarged diameter portion 275b is positioned closer to the shaft portion 255 than the annular reduced diameter portion 278a, and the surface on the shaft portion 255 side is in contact with the cover member 154. That is, a gap is generated between the annular reduced diameter portion 278a and the cover member 154. Accordingly, the annular reduced diameter portion 278a is not sandwiched and fixed between the cover member 154 and the second enlarged diameter portion 275b. That is, it is possible to suppress the holder 278 and the shaft portion 255 from being fixed. Therefore, when a rotation operation is performed on the holder 278, it is possible to prevent the rotational force from being transmitted to the shaft portion 255. If the rotational force is easily transmitted to the shaft portion 255 when the holder 278 is rotated, even if the head 250 is separated, the holder 278 is operated to operate the receiving member 153 and the cover member 154. The conclusion is canceled illegally. By making it difficult for the rotational force applied to the holder 278 to be transmitted to the shaft portion 255, it is possible to suppress an illegal act by performing a rotational operation on the holder 278.

  The holder 278 and the breaking screw 170 are installed in a state where they enter the cylindrical portion 178. Since the holder 278 and the head portion 250 enter the cylindrical portion 178, direct access to the shaft portion 255 from a direction orthogonal to the axial direction of the breaking screw 170 can be suppressed.

  Even after the head 250 is separated, the entire head 250 enters the first hole 280a. In this case, the head 250 shields the first hole 280a after being separated. Accordingly, direct access to the first diameter-enlarged portion 275a and eventually the shaft portion 255 through the first opening 290a is suppressed. In addition, the head portion 250 shields a portion through which the axis of the shaft portion 255 passes in the region on the side opposite to the shaft portion 255 of the shaft portion side narrowing portion 265b as viewed from the first opening 290a. For example, in order to rotate the shaft portion 255 in the loosening direction, it is necessary to access a portion located on the axis line of the shaft portion 255 in the region on the shaft portion 255 side. If it is not shielded, it is considered that an illegal act of rotating the shaft portion 255 in a loosening direction after applying an adhesive to the part and integrating the tool and the region provided with the shaft portion 255 is considered. It is done. On the other hand, according to the present embodiment, the shielding by the head 250 can prevent access to the portion through which the axis of the shaft portion 255 passes, and thus prevents unauthorized acts due to the integration. it can.

  The cover member 154 is provided with a cylindrical side uneven portion 178b. Even if the head 250 of the breaking screw 170 is separated and cannot rotate in the direction of loosening the shaft portion 255 (even if the adhesive cannot be applied directly to the portion through which the axis on the shaft portion 255 side passes), the first opening of the holder 278 It is conceivable that resin, adhesive, or the like is poured from the gap of 290a and the head 250 and the shaft portion 255 are integrated, or the holder 278 and the shaft portion 255 side are integrated. After the integration, an illegal act of rotating the shaft portion 255 in a loosening direction by rotating the holder 278 and the head portion 250 can be considered. In this embodiment, when a resin, an adhesive, or the like is poured and the resin, an adhesive, etc. reaches the cover member 154, the resin, an adhesive, etc. enter the cylinder side uneven portion 178b of the cover member 154. . When the resin or adhesive is hardened, the cover member 154 and the breaking screw 170 can be integrated. As a result, the shaft portion 255 can be prevented from rotating in the loosening direction.

  The cylinder side uneven portion 178b is provided on the side opposite to the head 250 from the contact portion 178c. Thereby, it can suppress that the fracture | rupture screw 170 contacts the cylinder part side uneven | corrugated | grooved part 178b. If the tube-side uneven portion 178b and the fracture screw 170 are in close contact with each other, it is considered that there is no gap in which resin, adhesive, or the like flows into the tube-side uneven portion 178b. When the gap is eliminated, it is considered that the breaking screw 170 and the cover member 154 are not integrated, and an illegal act in which a resin, an adhesive, or the like is poured is performed. The cylindrical portion side uneven portion 178b is provided on the side opposite to the head portion 250 with respect to the contact portion 178c, thereby preventing the uneven portions 178b and 275c from being in close contact with each other. Thereby, when resin, an adhesive agent, etc. are poured, it can suppress that the clearance gap into which resin, an adhesive agent, etc. flow into the area | region where each uneven | corrugated | grooved part 178b, 275c opposes disappears.

  Further, the screw-side uneven portion 275c is provided so as to come into contact with the contact portion 178c when viewed from the head 250 side and to face the tube-side uneven portion 178b. When the contact portion 178 and the screw side uneven portion 275c are in contact with each other, an effect of preventing loosening due to vibration or the like can be obtained. As a result, only by setting the range of the screw-side uneven portion 275c, the fraudulent act by the resin or the adhesive is performed while obtaining the effect of suppressing the unification by the resin or the adhesive. It is possible to obtain a loosening prevention effect when not.

  Since the inclined surface 178d is provided so as to be lowered toward the tube-side uneven portion 178b, the resin, the adhesive, or the like is poured into the tube-side uneven portion 178b when an improper act due to a resin or an adhesive is poured. Can be suitably achieved.

  The surface where the holder 278 is in contact with the head 250 and the enlarged diameter portions 275a and 275b is circular when viewed in the axial direction. In this case, it is possible to suppress the holder 278, the head portion 250, and the enlarged diameter portions 275a and 275b from being caught in the rotation direction. That is, since the holder 278 is difficult to be locked to the head portion 250 and the enlarged diameter portions 275a and 275b, when the holder 278 is rotated after the head portion 250 is separated, the enlarged diameter portion 275a is rotated by the rotation operation. , 275b, and thus the shaft 255 can be prevented from rotating.

  Further, when the holder 278 is circular, even if resin or the like is poured into the holder 278 and the holder 278 and the shaft portion 255 are integrated, the shaft portion 255 and the holder 278 are easily slipped, and the holder 278 And the strength of the integration between the shaft portion 255 and the shaft portion 255 can be reduced. On the other hand, the provision of the cylindrical portion-side uneven portion 178b increases the strength of integration of the breaking screw 170 and the cover member 154. As a result, in order to release the integration of the cover member 154 and the breaking screw 170, that is, to break the resin or adhesive in the portion where the cover member 154 and the breaking screw 170 are integrated, the holder 278 or When a rotational force is applied to the head 250, the portion where the holder 278 and the shaft portion 255 are integrated before the resin, adhesive or the like integrated with the cover member 154 and the breaking screw 170. Resin and adhesive break. After that, the rotational force of the holder 278 or the head 250 is not transmitted to the part where the cover member 154 and the breaking screw 170 are integrated, and the integration of the cover member 154 and the breaking screw 170 is released. Can be suppressed. That is, when each part is integrated by pouring a resin, an adhesive, etc., by providing a part in the holding part whose strength of integration is weaker than the part where the cylindrical part uneven part 178b is provided, The release of the integration of the cover member 154 and the breaking screw 170 is suppressed.

<Second Embodiment>
In the present embodiment, the configuration of the breaking screw 170 described in the first embodiment is different. Below, it demonstrates centering on difference with the fracture | rupture screw 170 in the said 1st Embodiment. The breaking screw 323 in the present embodiment is different from the first embodiment in the shape of the flange portion. FIG. 30 is a cross-sectional view of the present embodiment corresponding to FIG. 24 of the first embodiment.

  As described above, the annular step surface 301 is formed between the first and second holes 280a and 280b. Corresponding to the stepped surface 301, the locking screw 323 has a locking portion that protrudes radially outward from the peripheral surface of the head 250 at the boundary portion between the head 250 and the head-side restricting portion 265 a. An annular flange portion 325 is integrally formed. The flange portion 325 is set to have an outer diameter larger than that of the first hole portion 280a and smaller than that of the third hole portion 280c. Accordingly, the flange portion 325 can be prevented from entering the first hole portion 280a and can be positioned in the third hole portion 280c.

  The flange portion 325 is provided with a prevention wall 328 that prevents the resin, the adhesive, or the like from flowing toward the shaft portion 255 when the resin, the adhesive, or the like is poured from the first opening 290a. The prevention wall 328 extends annularly from the outer edge portion of the flange portion 325 toward the step surface 301, and the tip thereof faces the step surface 301.

  When resin, adhesive, or the like is poured from the first opening 290a, the resin, adhesive, or the like flows into the surface of the flange portion 325 on the side opposite to the shaft portion 255. The inner peripheral surface of the prevention wall 328 prevents the resin, adhesive, and the like from flowing into the shaft portion 255 side rather than the flange portion 325. That is, resin, adhesive, or the like poured from the first opening 290a is stored in a groove formed by the prevention wall 328 and the flange portion 325.

  The prevention wall 328 faces the step surface 301 regardless of the position moved in the direction perpendicular to the axial direction of the shaft portion 255 within the head portion 250 and the first hole portion 280a. That is, even if the head 250 moves, the first opening 290a, the first enlarged diameter portion 275a, and the prevention wall 328 do not overlap in a straight line. This is because the resin, adhesive, or the like is poured onto the end surface of the prevention wall 328 on the side opposite to the shaft portion 255, and the resin, adhesive, etc. are interposed between the inner peripheral surface of the prevention wall 328 and the outer peripheral surface of the head 250. This is a device for preventing the resin, adhesive, or the like from flowing into the region on the shaft portion 255 side without accumulating.

  A fraudulent act of rotating the shaft portion 255 in the loosening direction by pouring resin or adhesive from the first opening 290a and rotating the holder 278 after integrating the holder 278 and the breaking screw 323 can be considered. . In this respect, the prevention wall 328 is provided to prevent the resin, adhesive, etc. from flowing into the shaft portion 255 side, and to prevent an illegal act of rotating the shaft portion 255 in the loosening direction. it can. In particular, when the poured resin, adhesive, or the like is quick-drying or highly viscous, the resin is prevented by the prevention wall 328 before flowing from the flange portion 325 to the shaft portion 255 side. It is conceivable that the adhesive or the adhesive hardens. In this case, it is conceivable that the holder 278 and the head portion 250 are integrated, but as described in the first embodiment, the holder 278 has the first and second enlarged diameter portions 275a and 275b. It is designed to be idle. As a result, even if the head 250 is rotated after the holder 278 and the head 250 are integrated, the holder 278 and the region on the shaft portion 255 side are not fixed, and the rotational force is the shaft portion 255. It is difficult to be transmitted to the region on the side, and rotation in the direction of loosening the shaft portion 255 can be suppressed.

  However, when a resin or an adhesive having a low viscosity or a slow-acting one is used, it may be considered that the resin or adhesive or the like flows into the shaft portion 255 side from the flange portion 325 before the resin or adhesive is hardened. Therefore, in this embodiment, the inner peripheral side of the annular reduced diameter portion 278a is reduced in diameter as it approaches the shaft portion 255 from the second hole portion 280b side. That is, an inclined surface 330 is formed in the holder 278 so as to descend toward the second opening 290b.

  When resin, adhesive, or the like is poured from the first opening 290a and gets over the prevention wall 328 and reaches the region on the shaft portion 255 side, the inclined surface 330 covers the resin, adhesive, or the like. It is guided to the member 154 (it is guided to the first cover member 154 by the inclined surface 330 via the second opening 290b). In this case, not only the holder 278 and the breaking screw 323 but also the cover member 154 are integrated by the resin, adhesive, or the like by the resin, adhesive, or the like. By integrating the cover member 154 and the breaking screw 323, and thus the shaft portion 255, it is possible to suppress an illegal act of rotating the shaft portion 255 in the loosening direction.

  Furthermore, in the present embodiment, the holder 278 is positioned in the hole 178a of the cylindrical portion 178, and the diameters of the holder 278 and the hole 178a are set so that there is almost no gap between the hole 178a and the holder 278. ing. In the state where the shaft portion 255 is screwed into each of the structural members 101 and 102, a gap is perpendicular to the axial direction of the shaft portion 255 formed by the second hole portion 280b and the first enlarged diameter portion 275a. At the same time, a gap is formed in the direction orthogonal to the axial direction of the shaft portion 255 by the annular reduced diameter portion 278a and the second enlarged diameter portion 275b. Accordingly, when resin, adhesive, or the like flows into the region closer to the shaft portion 255 than the flange portion 325, the resin, adhesive, or the like easily reaches the cover member 154 through the gap.

  In this embodiment, the prevention wall 328 suppresses fraud mainly due to a highly viscous or quick-drying resin or adhesive, and the inclined surface 330 is mainly fraud due to a low viscosity or slow-acting resin or adhesive. Suppress the act. By providing the prevention wall 328 and the inclined surface 330, it is possible to obtain an effect of suppressing fraud using a resin, an adhesive, or the like, and the fraud may be reduced depending on the type of resin, adhesive, or the like used. It is suppressing that the inhibitory effect falls.

  The length in the axial direction of the shaft portion 255 in the prevention wall 328 and the angle extending toward the holder 278 are not particularly limited, but if the prevention wall 328 is as close as possible to the holder 278, the fracture portion 260 is provided. When the rupture breaks, it is possible to reduce a gap (a gap formed by the prevention wall 328 and the holder) into which resin, an adhesive, or the like flows.

  Although the prevention wall 328 extends from the head 250 toward the stepped surface 301, it may extend from the outer peripheral surface of the head 250 toward the inner peripheral surface of the third hole 280c. That is, the prevention wall 328 may extend in a direction orthogonal to the axial direction of the shaft portion 255 between the head portion 250 and the third hole portion 280c. Even in this case, by providing the prevention wall 328, it is possible to prevent the resin, the adhesive, or the like from flowing into the shaft portion 255 side. Note that the prevention wall 328 may be formed of a synthetic resin material having elasticity.

<Third Embodiment>
In the present embodiment, a plurality of openings are provided in the annular reduced diameter portion 278a. Such a configuration will be described with reference to FIG. FIG. 31A is a schematic view showing a state before the breaking screw 170 is broken. FIG. 31 (b) is an enlarged view showing a region Z in FIG. 31 (a). FIG. 31A is a cross-sectional view in the present embodiment corresponding to FIG. 24 of the first embodiment.

  A plurality of circular through holes 333 are provided in the annular reduced diameter portion 278a in the present embodiment. The through hole 333 penetrates from the head 250 side to the shaft portion 255 side. By providing the through-hole 333, when resin, adhesive, or the like is poured from the first opening 290a in order to integrate the holder 278 and the breaking screw 170, the resin, adhesive, etc. pass through the through-hole 333. Pass through and reach the cover member 154. Thereby, similarly to the second embodiment, not only the holder 278 and the breaking screw 170 but also the cover member 154 are integrated by the resin, adhesive, or the like. Therefore, it can suppress that the axial part 255 and the cover member 154 are integrated, and it rotates to the direction which loosens the axial part 255. FIG.

  In this embodiment, since the through-hole 333 is provided in the annular reduced diameter portion 278a, a gap is formed in the annular reduced diameter portion 278a and the second enlarged diameter portion 275b in a direction orthogonal to the axial direction of the shaft portion 255. Even if it is not provided, it becomes possible to allow the resin, adhesive, or the like to reach the cover member 154.

  In the present embodiment, the plurality of through holes 333 are provided. However, the number of the through holes 333 is not particularly limited, and it is considered that the through holes 333 are provided only at one or two places. It is done. When the number of through holes 333 is reduced, the diameter of the through holes 333 may be increased in order to facilitate the flow of resin, adhesive, or the like to the cover member 154 side. However, when the diameter of the through-hole 333 is increased, the durability of the annular reduced diameter portion 278a may be lowered. Therefore, it is necessary to ensure the durability of the annular reduced diameter portion 278a.

  The through hole 333 has a circular shape, but the shape of the through hole 333 may be changed. For example, the through hole 333 may have a rectangular shape. Moreover, you may arrange | position the several through-hole 333 so that it may become a grid | lattice form.

  Further, only one of the inclined surface 330, the through hole 333, and the prevention wall 328 described in the present embodiment and the second embodiment may be applied. Even in this case, the inclined surface 330, the through hole 333, or the prevention wall 328 can suppress a predetermined fraud using a resin, an adhesive, or the like.

<Fourth Embodiment>
In the present embodiment, ratchet teeth are provided on the outer peripheral surface of the second enlarged diameter portion 275b and the inner peripheral surface of the cylindrical portion 178, respectively. And in the state which fastened the back side structure 102 and each member 153,154, when each ratchet tooth part is latched (meshing), it will rotate to the direction where the fracture | rupture screw 170 (shaft part 255) loosens. Is preventing. These configurations will be described below. FIG. 32 is a cross-sectional view in the present embodiment corresponding to FIG. 23 in the first embodiment. FIG. 33 is an enlarged view around the breaking screw of FIG. 32, FIG. 33 (a) shows a state before the breaking screw 170 is inserted into the communication hole 169 and the round hole 179, and FIG. A state in which the screw 170 is inserted into the communication hole 169 and the round hole 179 is shown.

  As shown in FIGS. 32 and 33, in the region on the bottom surface side of the cylindrical portion 178, the cylinder side whose diameter is reduced so as to accommodate a part of the second enlarged diameter portion 275b of the breaking screw 170 on the side opposite to the head 250 is accommodated. A reduced diameter portion 350 is provided. The cylinder-side reduced diameter portion 350 is formed so that its inner diameter is the same as or slightly larger than the outer diameter of the second enlarged diameter portion 275b. That is, in the state where the second diameter enlarged portion 275b enters the cylinder side reduced diameter portion 350, the inner peripheral surface of the cylinder side reduced diameter portion 350 and the outer peripheral surface of the second diameter enlarged portion 275b face each other.

  A cylindrical ratchet tooth portion 353 as a first engagement portion is provided on the inner peripheral surface of the cylindrical reduced diameter portion 350, and the outer peripheral surface of the portion that enters the cylindrical reduced diameter portion 350 in the second expanded diameter portion 275b. Is provided with a screw side ratchet tooth portion 355 as a second engaging portion. The ratchet teeth 353 and 355 are engaged with each other, and the second diameter-enlarged portion 275b, and thus the shaft portion 255, is prevented from rotating in the loosening direction.

  The inner diameter of the cylinder-side reduced diameter portion 350 is larger than the outer diameter of the shaft portion 255, and the insertion of the shaft portion 255 into the communication hole 169 and the round hole 179 is not hindered by the cylinder-side reduced diameter portion 350. ing. That is, the inner circumference of the cylinder-side reduced diameter portion 350 is smaller than the outer circumference of the holder 278. For this reason, in the cylindrical part 178, each ratchet tooth part 353,355 will be in the state hidden by the holder 278 from the non-axis part side.

  Further, the surface on the head portion 250 side of the cylinder-side reduced diameter portion 350 is provided so as not to contact the surface on the shaft portion 255 side of the holder 278 even if the holder 278 moves to the shaft portion 255 side. That is, the breaking screw 170 can be inserted until the surface on the shaft portion 255 side of the second enlarged diameter portion 275b comes into contact with the bottom surface of the cylindrical portion 178.

  Each ratchet tooth part 353,355 is demonstrated. FIG. 34 shows a peripheral region of the bottom surface of the cylindrical portion 178, and shows a state where a part of the shaft portion 255 is inserted into the round hole 179.

  The cylinder side ratchet tooth portion 353 has a plurality of cylinder side ratchet teeth 357. The cylinder-side ratchet teeth 357 include a cylinder-side locking surface 357a that suppresses rotation of the shaft portion 255 in a loosening direction, and a cylinder-side guide surface 357b that guides rotation of the shaft portion 255 in a tightening direction. And is provided so as to protrude to the inside of the cylinder-side reduced diameter portion 350. The cylinder side locking surface 357a is provided on the front side of the cylinder side guide surface 357b in the direction in which the shaft portion 255 is loosened. Each of the surfaces 357a and 357b is provided so as to be non-target with respect to the normal direction of the shaft portion 255, and the cylinder side guide surface 357b is more relative to the normal direction of the shaft portion 255 than the cylinder side locking surface 357a. It is provided to tilt. Specifically, the cylinder side locking surface 357a is provided so as to be substantially parallel to the normal direction of the shaft portion 255, and the cylinder side guide surface 357b forms an acute angle with the cylinder side locking surface 357a. In this way, it is tilted with respect to the normal direction.

  Each surface 357a, 357b extends so as to be parallel to the axial direction of the shaft portion 255. That is, the cylinder side ratchet teeth 357 are configured such that the amount of protrusion from the inner peripheral surface of the cylindrical portion 178 does not change when viewed in the axial direction.

  The screw side ratchet tooth portion 355 has a plurality of screw side ratchet teeth 360. The screw side ratchet teeth 360 include a screw side locking surface 360a that suppresses rotation of the shaft portion 255 in a loosening direction, and a screw side guide surface 360b that guides rotation of the shaft portion 255 in a tightening direction. It is provided so that it may protrude outside the 2nd enlarged diameter part 275b. The screw side locking surface 360a is provided on the front side of the screw side guide surface 360b in the direction in which the shaft portion 255 is loosened. Each surface 360a, 360b is provided so as to be non-target with respect to the normal direction of the shaft portion 255, and the screw-side guide surface 360b is more relative to the normal direction of the shaft portion 255 than the screw-side locking surface 360a. It is provided to tilt. Specifically, the screw side locking surface 360a is provided so as to be substantially parallel to the normal direction of the shaft portion 255, and the screw side guide surface 360b forms an acute angle with the screw side locking surface 360a. In this way, it is tilted with respect to the normal direction.

  Further, the surfaces 360 a and 360 b extend so as to be parallel to the axial direction of the shaft portion 255. That is, the screw-side ratchet teeth 360 are configured such that the amount of protrusion from the second enlarged diameter portion 275b does not change when viewed in the axial direction.

  The engagement of the ratchet teeth 353 and 355 when the shaft 255 is rotated in the fastening direction will be described. FIG. 35 is an explanatory view showing the state of engagement of the ratchet teeth 353 and 355. FIG.

  When the shaft portion 255 is rotated in the tightening direction, the second diameter-expanded portion 275b rotates so that the screw-side guide surface 360b of the screw-side ratchet tooth portion 355 is on the front side. Then, as shown in FIG. 35A, the screw side ratchet teeth 360 abut on the cylinder side guide surface 357 b in the cylinder side ratchet tooth portion 353. As described above, the breaking screw 170 is made of a metal material, and the cover member 154 is made of a synthetic resin material. For this reason, compared with the screw side ratchet teeth 360, the cylinder side ratchet teeth 357 are easily distorted. When a rotational force greater than a predetermined torque is applied to each guide surface 357b, 360b in a state where the respective guide surfaces 357b, 360b are in contact, the cylinder side ratchet teeth 357 are distorted along the respective guide surfaces 357b, 360b. Then, in a state where the tube side ratchet teeth 357 are distorted, the screw side ratchet teeth 360 get over the top of the tube side ratchet teeth 357.

  When the screw side ratchet teeth 360 get over the cylinder side ratchet teeth 357, the cylinder side ratchet teeth 357 are not distorted by the return elastic force of the cylinder side ratchet teeth 357, as shown in FIG. When the second enlarged diameter portion 275b is further rotated in the direction in which the shaft portion 255 is tightened, the screw side ratchet teeth 360 and the cylinder side guide surface 357b come into contact again, and the cylinder side ratchet teeth 357 are distorted. That is, by repeating the state in which the tube side ratchet teeth 357 are distorted and the state in which the tube side ratchet teeth 357 are not distorted, it is possible to rotate the shaft portion 255 in the tightening direction in a state where the ratchet teeth portions 353 and 355 mesh with each other. Become.

  When it is going to rotate the axial part 255 in the loosening direction, the 2nd enlarged diameter part 275b rotates so that the screw side latching surface 360a in the screw side ratchet tooth part 355 may become a front side. Then, the cylinder side ratchet teeth portion 353 comes into contact with the cylinder side locking surface 357a. The locking surfaces 357a and 360a are not inclined with respect to the normal direction of the shaft portion 255 as compared with the guide surfaces 357b and 360b. For this reason, the cylinder-side ratchet teeth 357 are not easily distorted in a state where the locking surfaces 357a and 360a are in contact with each other, and further rotation can be suppressed in a state where the locking surfaces 357a and 360a are locked. As a result, the shaft portion 255 can be prevented from rotating in the loosening direction (that is, by rotating the shaft portion 255 in the loosening direction, the state shown in FIG. 35 (b) is changed to the state shown in FIG. 35 (a). Can be prevented).

  With the above configuration, it is possible to restrict the shaft portion 255 from being rotated in a loosening direction after the fastening operation of the back side structural body 102 and the members 153 and 154 by the breaking screw 170. In this case, it can be said that the ratchet teeth 353 and 355 form a one-way clutch that can rotate only in one direction. As a result, the shaft portion 255 is rotated in the loosening direction after the backside structure 102 and the members 153 and 154 are fastened, and the fastening of the backside structure 102 and the members 153 and 154 can be prevented from being illegally released. . After the breaking portion 260 is cut, the head 250 and the shaft portion 255 are separated, and even if the shaft portion cannot be rotated in the loosening direction, a resin, an adhesive, or the like is poured into the peripheral region of the breaking screw 170, It is conceivable to perform an illegal act of rotating the breaking screw 170 by operating the tool or the like after the breaking screw 170 and the tool or the like are integrated with each other by an adhesive or the like. According to the present embodiment, rotation of the shaft portion 255 in the loosening direction can be suppressed by engaging the ratchet teeth portions 353 and 355, and further, illegal acts caused by the resin, adhesive, or the like can be suppressed. it can.

  Here, the amount of insertion of the shaft portion 255 will be described. As described above, by providing the ratchet teeth 353 and 355, the fastening is not released after the back side structure 102 and the members 153 and 154 are fastened. However, since the cylinder side ratchet teeth 357 are distorted during the fastening operation, a larger torque is applied to the fracture portion 260 of the fracture screw 170 than when the ratchet teeth portions 353 and 355 are not provided. There is a possibility that the head 250 may be separated during the work. Therefore, the present embodiment has a characteristic configuration in the arrangement of screw grooves (hereinafter referred to as screw grooves 370) of the mounting hole portion 159.

  As shown in FIG. 33, when the shaft portion 255 is inserted into the mounting hole portion 159, the communication hole 169, and the round hole 179, it can be inserted into the region of the length L1. In addition, in the region of the length L1, the screw groove 370 is not provided in the region of the length L2 on the head 250 side, and the screw groove 370 is located in the region on the side opposite to the head 250 from the region of the length L2. Is formed. For this reason, the shaft portion 255 and the screw groove 370 are screw-coupled in the region of the length L3 in the mounting hole portion 159.

  Moreover, the length L4 of the axial direction of the axial part 255 in the cylinder side ratchet tooth part 353 is shorter than the length L3. Further, the cylinder side ratchet tooth portion 353 extends from the bottom surface of the cylindrical portion 178. As a result, when the shaft portion 255 and the screw groove 370 are screw-coupled over a length obtained by subtracting the length L4 from the length L3, the engagement of the ratchet teeth portions 353 and 355 is started. ing. That is, the ratchet teeth 353 and 355 are not engaged unless the screw connection of the shaft 255 is started.

  With the above configuration, the engagement of the ratchet teeth 353 and 355 is started before the screw connection of the shaft portion 255 is started, and the back-side structure 102 and the members 153 and 154 are connected by the shaft portion 255. It is possible to suppress the separation of the head portion 250 and the shaft portion 255 by applying a large torque to the breaking portion 260 before sufficiently performing. For this reason, the rotational torque transmitted to the fractured portion 260 is not increased much before the fastening operation of the back-side structure 102 and the members 153 and 154 is completed, and the back-side structure 102 and the members 153 and 154 Separation of the head portion 250 and the shaft portion 255 during the connecting operation can be suppressed.

  Further, a screw-side ratchet tooth portion 355 is provided on the second enlarged diameter portion 275b of the breaking screw 170. The second enlarged diameter portion 275 protrudes from the holder 278 toward the shaft portion 255 side. For this reason, in the fracture | rupture screw 170 with which the separated head 250 is hold | maintained in the holder 278, the engagement of the screw side ratchet tooth | gear part 355 is not inhibited by the holder 278.

  The ratchet teeth 353 and 355 are provided so as to oppose the inner peripheral surface of the cylinder-side reduced diameter portion 350 and the outer peripheral surface of the second enlarged diameter portion 275b. The width of each ratchet tooth portion 353, 355 is ensured in the axial direction of the shaft portion 255, compared to the case where the bottom surface of the portion 178 and the surface on the opposite head 250 side of the second enlarged diameter portion 275b are opposed to each other. Thus, the ratchet teeth 353 and 355 can be reliably engaged.

  Each ratchet tooth portion 353, 355 is configured to be hidden from the opposite shaft portion 255 side by the holder 278. Thereby, it can suppress that each ratchet tooth part 353,355 is accessed directly. Further, since the breaking screw 170 is installed inside the cylindrical portion 178, access to the ratchet tooth portions 353 and 355 from a direction orthogonal to the axial direction of the shaft portion 255 can be suppressed.

<Other embodiments>
In addition, it is not limited to the description content of embodiment mentioned above, For example, you may implement as follows. Incidentally, the configuration of the following different embodiment may be applied individually to the configuration in the above embodiment, or may be applied in combination with each other.

  (1) You may change the fixed object (member) which the fracture | rupture screws 170 and 323 (henceforth the fracture | rupture screw 170 grade | etc.,) Fix. For example, when the back pack unit 15 is fixed, the breaking screw 170 or the like may be used. Furthermore, a break screw or the like may be used for fixing the main control board 91 or the locking device 23. That is, the breaking screw 170 or the like may be applied to other parts where the removal operation needs to be prevented.

  In addition, the number of breaking screws 170 or the like provided on the fixing object may be changed, may be fixed by one breaking screw 170 or the like, or may be broken by two, three, or more. An object to be fixed may be fixed by a screw 170 or the like.

  It is also possible to provide a plurality of cover members corresponding to each receiving member individually. In a configuration having a plurality of cover members, it is preferable to provide break screws 170 or the like corresponding to the cover members.

  (2) Although the receiving member 153 and the cover member 154 are fixed together by the breaking screw 170 or the like, the receiving member 153 and the cover member 154 may be fixed individually by changing this. However, in such a case, there is a concern that the configuration is complicated and the workability is deteriorated. Therefore, the receiving member 153 and the cover member 154 are desirably fixed together by the same fixing means.

  (3) Although the mounting direction of the breaking screw 170 or the like is configured to be the same as the mounting direction of the cover member 154 and the receiving member 153, the present invention is not limited to this. For example, the breaking screw 170 may be mounted from the inside of the substrate box 92 or may be mounted from the outside of the substrate box 92.

  (4) The cylindrical portion 178 and the holder 278 are each circular when viewed in the axial direction, but such a configuration may be changed. For example, a convex portion may be provided on one of the cylindrical portion 178 or the holder 278, and a concave portion into which the convex portion is inserted may be provided on the other. In this case, the rotation of the holder 278 inside the cylindrical portion 178 can be suppressed by engaging the convex portion and the concave portion. When the holder 278 can be rotated, if the torque is transmitted to the shaft portion 255 by the rotation of the holder 278, the shaft portion 255 may be rotated in a loosening direction. By applying this configuration, the holder 278 can be prevented from rotating, and the shaft portion 255 can be further prevented from being loosened.

  In addition to the configuration in which the convex portion and the concave portion are provided, it is also conceivable that the holder and the accommodating portion that accommodates the holder have a rectangular shape (for example, a square shape). Thereby, it becomes possible to suppress that a holder rotates. However, it is desirable that the accommodating portion be sized so that the corners of the holder come into contact with each other and the holder can be prevented from rotating.

  (5) When the breakage portion 260 breaks, the head portion 250 is positioned in the axial direction of the breakage portion 260 and the first enlarged diameter portion 275a, and the head portion 250 shields the shaft portion side narrowing portion 265b. The head 250 does not have to shield the shaft side narrowing portion 265b.

  (6) The head 250 has a cylindrical shape, but may not have a cylindrical shape. For example, the head 250 may be conical. However, it is necessary to be able to restrict the movement of the head 250 from the holder 278 by the flange portion 305 in the head 250.

  Similarly, for the other members, the holes 280a to 280c, the narrowed portions 265a and 265b, and the first and second enlarged diameter portions 275a and 275b of the holder 278 may not have a circular shape. However, when each member does not have a circular shape, it is conceivable that the fracture screw 170 rotates in conjunction with rotation of the holder 278. Therefore, the diameter of each of the holes 280a to 280c is a surface in a direction perpendicular to the axial direction of the holder 278 when it is rotated while restricting the movement of each of the narrowed portions 265a, 265b and each of the enlarged diameter portions 275a, 275b. It is desirable that the size is such that it does not catch on the holder 278.

  (7) When the breaking screw 170 is installed, all the portions of the holder 278 are accommodated in the cylindrical portion 178. However, only a part of the holder 278 may be accommodated in the cylindrical portion 178. In this case, it is possible to suppress direct access to the second enlarged diameter portion 275b not covered by the holder 278 by covering at least the second enlarged diameter portion 275b with the cylindrical portion 178. In addition, the gap in the direction orthogonal to the axial direction formed by the cylindrical portion 178 and the holder 278 may be reduced. By reducing the gap, the cylindrical portion 178 can function as a movement restricting unit that restricts the holder 278 from moving in a direction orthogonal to the axial direction.

  Further, instead of the cylindrical portion 178, a break screw 170, etc. may be installed in a recess provided in the cover member 154.

  (8) When the breaking screw 170 or the like is installed, the holder 278 is not in contact with the object to be fixed (the cover member 154), but the holder 278 may be in contact with the object to be fixed. For example, it is good also as a structure which the annular diameter reducing part 278a in the holder 278 is fastened by the 1st diameter expanding part 275a.

  (9) The shaft portion 255 of the breaking screw 170 or the like is provided with a projecting portion provided intermittently, and the object to be fixed is fixed by a screw groove formed in the projecting portion. A spiral groove continuous to the portion 255 or the like may be provided.

  Furthermore, the type of screw may be changed, and a tap screw, a small screw, or the like may be used. In other words, any configuration may be used as long as the operation unit operated when fastening is a screw to be cut.

  (10) In the first to third embodiments, the screw-side uneven portion 275c is provided on the surface of the second enlarged diameter portion 275b on the shaft portion 255 side, but the screw-side uneven portion 275c is provided. It does not have to be. In particular, in the first embodiment, even if the screw-side uneven portion 275 c is not provided, the tube-side uneven portion 178 b is provided, so that a resin, an adhesive, or the like is poured into the holder 278, and the breaking screw 170. It is possible to increase the fixing strength when the cover member 154 and the cover member 154 are integrated.

  (11) Although the annular diameter-reduced portion 278a is provided to restrict the movement of the first diameter-increased portion 275a from the holder 278, the first diameter-expanded portion 275a is moved from the holder 278 to the outside. If the control means to control is provided, it will not be limited to this structure.

  For example, a protrusion may be provided at a position overlapping the first diameter-enlarged portion 275a in the axial direction on the shaft portion 255 side of the holder 278.

  (12) The holder 278, the breaking screw 170, etc. are made of a metal material. This is a device for increasing the strength of the breaking screw 170 and the like and the holder 278. Note that the material of the holder 278 and the breaking screw 170 may be changed, and one or both of the holder 278 and the breaking screw 170 may be formed of a resin material. For example, if the holder 278 is formed of a resin material, the holder 278 becomes a resin material, and the breaking screw 170 and the like become a metal material. In this case, after the fracture portion 260 is fractured, when an adhesive is poured into the holder 278 to fix the fracture screw 170 and the holder 278, the material of the fracture screw 170 and the holder 278 is different. Thus, an effect is obtained in which the breaking screw 170 and the like and the holder 278 are hardly fixed. When the breaking screw 170 or the like and the holder 278 are fixed, an illegal act of rotating the shaft portion 255 or the like by rotating the holder 278 may be performed, but the holder 278 and the breaking screw 170 or the like are removed. By using a different material, it is possible to suppress the fracture screw 170 and the like and the holder 278 from being fixed.

  Furthermore, since the cover member 154 and the cylindrical portion 178 are formed of a resin material (specifically, colorless and transparent polycarbonate resin), the holder 278 is formed of the same material as the cover member 154 and the cylindrical portion 178. Become. If the holder 278, the cover member 154, and the cylindrical portion 178 are made of the same material, when the adhesive is poured into the holder 278, the holder 278 and the cylindrical portion are fixed rather than the fracture screw 170 and the holder 278 are fixed. 178 and the cover member 154 are easily fixed. When the holder 278 is fixed to the cylindrical portion 178 or the cover member 154, the holder 278 cannot be rotated, and it is possible to prevent an illegal act by fixing the breaking screw 170 and the holder 278. It becomes.

  Moreover, although the structure which the cylinder side ratchet tooth 357 distorts was demonstrated, it is good also as a structure where the screw side ratchet tooth 360 distorts. By changing the material for forming the breaking screw 170 and the cylindrical portion 178, this configuration can be suitably realized. For example, when the screw side ratchet teeth 360 are distorted, the screw side ratchet teeth 360 may be formed of a synthetic resin material such as hard rubber. When formed of hard rubber, it is possible to obtain an appropriate hardness to suppress the rotation when the shaft portion 255 is rotated in the loosening direction while allowing elastic deformation when the shaft portion 255 rotates in the tightening direction. Is possible. That is, the material constituting each ratchet tooth 357, 360 is arbitrary, and it is sufficient that at least one of the ratchet teeth is distorted so that the shaft portion 255 can be rotated in the tightening direction.

  (13) The holder 278 does not need to be manufactured by molding, and may be manufactured by cutting out from a block-like (for example, cylindrical or bar-shaped) metal material. You may manufacture by making a metal material deform by applying a pressure (so-called forging forming).

  When manufacturing the holder 278 by shaving, the annular protrusion 278b is formed so that a step is formed on the outer peripheral surface of the holder 278 simply by applying a tool to the outer peripheral surface and rotating (shaving) the holder 278 with the tool applied. It becomes possible to form. Therefore, when forming the annular protrusion 278b, it is easy to apply a tool to the processed portion, and the arrangement of the tool is also simplified.

  It is also possible to cut out a portion of the holder 278 that becomes the annular protrusion 278b from a metal material or the like and attach the portion to the holder 278 by welding or the like.

  (14) The annular protrusion 278 b in the holder 278 is provided so as to be flush with the inner peripheral surface of the holder 278, but may be provided so as to be flush with the outer peripheral surface of the holder 278. In this case, a step is provided on the inner peripheral surface of the holder 278 by the annular protrusion 278b. However, as in the above-described embodiment, it is conceivable that the annular protrusion 278b is easier to bend the annular protrusion 278b when it is flush with the inner peripheral surface of the holder 278.

  Further, in the case where the outer peripheral surface of the annular protrusion 278b is flush with the outer peripheral surface of the holder 278 and a step is formed between the inner peripheral surface of the annular protrusion 278b and the inner peripheral surface of the holder 278, the annular protrusion 278b May be formed together with other parts (respective holes 280a to 280c) by a processing (forging) method by plastic deformation.

  (15) In the first embodiment, the holder 278 has the annular reduced diameter portion 278a formed by the curved surface 278c and the annular protrusion 278b. However, the holder 278 may be linear instead of the arcuate curved surface 278c. Good.

  However, it is desirable to gradually increase the thickness from the annular protrusion 278b to the outer peripheral surface of the holder 278, and as in the above-described embodiment, the thickness is gradually increased in an arc shape or a curved shape. It is desirable. When the breaking screw 170 and the holder 278 are integrated, the stress generated in each part can be made close to a constant value, and the deflection of each member can be made close to uniform. Can be suppressed. Furthermore, since the deflection can be made close to uniform, it is possible to suppress the variation in shape of the completed holder 278.

  (16) Even if a plate-like member (a washer) having an opening through which the shaft portion 255 passes is provided so as to be sandwiched between the second enlarged diameter portion 275b and the cover member 154 in the breaking screw 170. Good.

  The shaft portion 255 may be processed to prevent loosening. For example, an adhesive material (adhesive material) for preventing loosening may be applied to the shaft portion 255. In addition, a capsule-like pressure-sensitive adhesive material (adhesive material) is attached to the shaft portion 255 (a capsule is placed in the groove of the female screw), or a resin containing the pressure-sensitive adhesive material is wound around the shaft portion 255. It is done.

  (17) The holder 278 is installed in a state of being integrated with the breaking screw 170 or the like, but such a configuration may be changed. The breaking screw 170 and the like and the holding means for holding the separated head 250 may be provided individually.

  (18) In the first embodiment, when the head 250 is separated, the head 250 enters the first hole 280a and is tilted only in the width of the first hole 280a, whereby the head 250 shields the side on which the shaft portion 255 is provided, but is not limited to this configuration.

  The internal space of the holder 278 is large, and the separated head 250 may be held in the internal space. In this case, the 1st enlarged diameter part 275a may be visually recognized from the 1st opening 290a. Even in this case, when assembling the pachinko machine 10, there is no need to collect the separated head 250.

  (19) In the first embodiment, the head 250 is always in the first hole 280a after separation and before separation, but is not limited to this configuration.

  For example, it is conceivable that the head 250 enters only the third hole 280c regardless of whether the head 250 is before separation or after separation. That is, the head 250 does not have to enter the first hole 280a. In this case, if the diameter of the head 250 is adjusted (the diameter is larger than the first hole 280a and smaller than the third hole 280c), the first enlarged diameter part 275a is directly accessed from the first opening 290a. Can be suppressed by the separated head 250.

  (20) When the holder 278 is moved to the first position and the second position in the first embodiment, a part of the head 250 is always held in the holder 278 in both cases after the separation of the head 250 and before the separation. You may make it protrude outside. However, it is conceivable that the head 250 protruding from the holder 278 is picked and pulled out, so it is desirable to make the gap with the cylindrical portion 178 small.

  (21) In the first embodiment, regardless of whether the holder 278 is in the first position or the second position, the opposite shaft portion 255 of the head 250 regardless of whether the head 250 is separated or not. The side surface may enter the first hole 280a. In this case, the head 250 does not always protrude from the holder 278, and it is possible to suppress an unauthorized act of pulling out the head 250. In addition, since the head 250 always enters the first hole 280a, the gap between the head 250 and the first hole 280a can be kept small, and an illegal act is performed from the gap. This can be suppressed.

  (22) Although the annular reduced diameter portion 278a is formed in a completely closed annular shape, the present invention is not limited to this configuration. That is, the annular reduced diameter portion 278a may be provided intermittently. In this case, the annular protrusion 278b may be provided intermittently. By providing the annular protrusion 278b intermittently, even if distortion occurs when the annular protrusion 278b is bent, the annular protrusion 278b is less likely to be damaged. That is, by providing the annular protrusion 278b intermittently, it is possible to facilitate the bending process when the holder 278 is attached to the breaking screw 170.

  (23) The shape of the fracture portion 260 may be changed. For example, you may change the degree to which each aperture | diaphragm | squeeze part 265a, 265b is diameter-reduced. That is, the length in the axial direction in each of the narrowed portions 265a and 265b may be changed. In this case, the lengths in the axial direction of the narrowed portions 265a and 265b may be equal or different. In this case, it is possible to change the inclination angle formed by the narrowed portions 265a and 265b according to the length in the axial direction.

  Further, it is desirable that the inclination angle of the shaft side narrowing portion 265b is close to an angle orthogonal to the axial direction. When the inclination angle of the shaft-side restricting portion 265b is close to an angle orthogonal to the axial direction, even if the head 250 does not hide the shaft-side restricting portion 265b, the shaft portion side from the first opening 290a. It is possible to suppress an illegal act such as picking the narrowing portion 265b. In this case, the axial length of the shaft portion side narrowing portion 265b may be shortened or the shaft portion side narrowing portion 265b may be made large in diameter.

  Further, in addition to forming the fracture portion 260 with only the narrowed portions 265a and 265b, for example, a cylindrical portion may be interposed between the narrowed portions 265a and 265b. In addition, even if the narrowed portions 265a and 265b are omitted, the shape is not limited as long as it has a portion that is easier to cut (break) than other portions.

  (25) In the first embodiment, the second enlarged diameter portion 275b is provided, and the holder 278 does not move to the shaft portion 255 side from the second enlarged diameter portion, and between the holder 278 and the cover member 154. However, the holder 278 and the cover member 154 may be in contact with each other. In this case, the holder 278 may be prevented from being fastened to the region on the shaft portion 255 side when the fracture portion 260 is fractured. According to this configuration, even if the holder 278 and the cover member 154 are in contact with each other, when the holder 278 is rotated, it can be suppressed that the rotational force is transmitted to the shaft portion 255 side.

  (26) The cylinder side uneven portion 178b in the first embodiment may be provided for the cover member 154 in the second or third embodiment. In this configuration, when an improper act is performed by a resin, an adhesive, or the like, the resin, the adhesive, etc. can easily reach the cover member 154 by the inclined surface 330 or the through hole 333. With 178b, it is possible to increase the strength when the breaking screws 170, 323 and the cover member 154 are integrated. That is, the inclined surface 330 and the through-hole 333 function as a guide portion that guides a fluid such as resin or adhesive. As a result, it is possible to synergistically enhance the effect of suppressing fraud using a resin, an adhesive, or the like. In addition, guide means for guiding resin, an adhesive, or the like may be separately provided in the holder 278 in the cylindrical side uneven portion 178b. For example, in addition to the inclined surface 330 and the through-hole 333, it is conceivable that a guide path that makes it easier for the resin or adhesive or the like to reach the cylindrical side uneven portion 178b is provided in the second enlarged diameter portion 275b.

  Moreover, in the structure provided with guidance means, such as the inclined surface 330 and the through-hole 333, the cylinder part side uneven | corrugated | grooved part 178b and the screw side uneven | corrugated | grooved part 275c do not need to be provided. Even in this case, the resin, adhesive, or the like poured through the holder 278 is in a region where the surface on the cover member 154 side of the second enlarged diameter portion 275b and the surface on the head 250 side of the cover member 154 face each other. By being guided, the shaft portion 255 side after the breaking portion 260 is broken and the cover member 154 can be integrated. In this configuration, it is possible to use a screw member other than the breaking screw 170 to connect the cover member 154 and the receiving member 153. For example, one using a general screw member in which the head portion and the shaft portion are not separated is conceivable, and one using a one-way screw that can rotate only in the direction in which the shaft portion is tightened is conceivable. When these screw members are used, the position where the guiding portion for guiding the resin, the adhesive, or the like may be changed. For example, the one provided on the cover member 154 (cylindrical portion 178) can be considered.

  (27) In the first embodiment, the cylindrical side uneven portion 178b and the screw side uneven portion 275c are provided at a plurality of locations, but the configuration is not limited thereto. At least one of the tube side uneven portion 178b or the screw side uneven portion 275c may be provided in only one place.

  (28) In the first embodiment, the holder 278 is provided on the breaking screw 170, but the holder 278 may not be provided on the breaking screw 170. By providing the tube-side uneven portion 178b, the cover member 154 and the break screw 170 are integrated when the resin 260, the adhesive, or the like is poured after the break portion 260 is broken. It can suppress that the part 255 rotates in the direction which loosens. However, if the holder 278 is not provided, it may be necessary to collect the separated head 250 in the assembly work of the pachinko machine 10, and thus it is desirable to provide the holder 278. In the configuration in which the holder 278 is not provided, it is not necessary to provide the enlarged diameter portions 275a and 275b on the breaking screw 170.

  (29) The cylindrical side uneven portion 178b is provided in a portion hidden by the second diameter-enlarged portion 275b from the head 250 side of the cover member 154, but is not limited to this configuration.

  The cylindrical part side uneven part 178b may be provided in any part of the front side surface of the cover member 154. Moreover, the cylinder side uneven | corrugated | grooved part 178b may be provided only in a part of part which the cover member 154 and the 2nd enlarged diameter part 275b contact | abut. However, when the cylinder side uneven part 178b is far away from the second enlarged diameter part 275b and the shaft part 255, it is conceivable that the poured resin or adhesive does not reach the cylinder side uneven part 178b.

  (30) In the first embodiment, the cylindrical portion 178 is provided with the inclined surface 178d. However, the inclined surface 178d may not be provided.

  (31) In the first embodiment, the contact portion 178c may not be provided. However, when the contact part 178c is not provided, it is conceivable that the uneven parts 178b and 275c are in close contact with each other, and the resin, the adhesive, and the like do not flow into the region where the uneven parts 178b and 275c face each other. Therefore, it is desirable to provide a configuration that secures a gap between the uneven portions 178b and 275c.

  (32) Although the shape of the cylindrical portion side uneven portion 178b is not particularly limited, the following configuration may be employed.

  For example, it is conceivable that the groove formed by the cylindrical side uneven portion 178b has a cubic or rectangular parallelepiped shape. In addition, it is conceivable that the groove portion is formed by intersecting inclined surfaces, or the groove portion is formed by a curved surface.

  Further, the tube-side uneven portion 178b is formed from the end of the tube-side axial surface so as to form a tube-side axial surface extending in the axial direction of the shaft portion 255 and a pair of grooves with the tube-side axial surface. An insertion-side groove forming surface that extends, and is arranged such that the cylinder-side axial line surface is the front side and the cylinder-side groove forming surface is the rear side with respect to the direction in which the shaft portion is loosened. Things can be considered. Since the cylindrical portion side axial surface extends in the axial direction of the shaft portion 255, when the resin or adhesive or the like is poured into the cylindrical portion side uneven portion 178b and the resin or adhesive or the like is solidified, the cylindrical portion side axial surface Compared to the case where the inclined surface is formed, it becomes possible to make it easier to lock the resin, the adhesive, or the like on the cylinder side axial surface.

  (34) In each of the embodiments described above, the second enlarged diameter portion 275b is in contact with the cover member 154. However, a gap may be provided between the cover member 154 and the second enlarged diameter portion 275b.

  (35) A configuration in which the ratchet tooth portions 353 and 355 described in the fourth embodiment are provided may be applied to the first to third embodiments. Furthermore, the thread groove in the first to third embodiments may be the same as the thread groove 370 of the mounting hole 159 described in the fourth embodiment.

  When applying the configuration in which the ratchet teeth 353 and 355 described in the fourth embodiment are provided to the first embodiment, resin is applied to a part of the bottom surface of the cylindrical portion 178 in the first embodiment. Alternatively, an inclined surface 178d for guiding the adhesive or the like may be provided, and the cylindrical ratchet tooth portion 353 may be provided on a part of the bottom surface of the cylindrical portion 178 where the inclined surface 178d is not provided. Further, the inclined surface 178d may extend toward the tube side ratchet tooth portion 353. When the inclined surface 178d extends toward the cylinder side ratchet tooth portion 353, the resin, adhesive, or the like poured into the holder 278 reaches the ratchet tooth portions 353, 355, whereby each ratchet tooth portion 353, 355 is obtained. The engagement can be made stronger.

  You may apply the structure by which the inclined surface 330 and the through-hole 333 of 2nd, 3rd embodiment are provided with respect to 4th Embodiment. In this configuration, when a resin, an adhesive, or the like is poured into the holder 278, the resin, an adhesive, or the like reaches an area where the ratchet teeth 353, 355 are provided, and each ratchet tooth 353, The engagement of 355 can be made stronger.

  By applying the first to third embodiments to the fourth embodiment, it is possible to enhance the effect of suppressing fraudulent acts caused by resins, adhesives, and the like.

  (36) In the fourth embodiment, the screw side ratchet tooth portion 355 is provided on the outer peripheral surface of the enlarged diameter portion 275b. However, the position where the screw side ratchet tooth portion 355 is provided may be changed. . That is, the screw side ratchet tooth portion 355 may be provided toward the bottom surface side of the cylindrical portion 178. In this case, the cylinder-side ratchet teeth 353 may be provided so as to extend from the bottom surface of the cylindrical portion 178 toward the head 250 side.

  (37) In the fourth embodiment, the back side structural body 102 and the members 153 and 154 are fastened using the breaking screw 170, but the type of screw member to be fastened may be changed. For example, one using a general screw member in which the head portion and the shaft portion are not separated is conceivable, and a one-way screw provided with a tool engaging portion that can be rotated only in the direction in which the shaft portion is tightened The thing using is considered. In addition, since the heads of these screw members are not separated, screw side ratchet teeth 355 may be provided on the outer peripheral surface of the head of each screw member. Further, a break screw that does not hold the separated head may be used. In a break screw that does not hold the separated head, the screw-side ratchet teeth 355 may be provided in the region on the shaft portion side after the head is separated.

  (38) In the fourth embodiment, the cylindrical portion 178 is provided, but the cylindrical portion 178 may not be provided. In this case, the cylinder side ratchet tooth portion 353 may be provided around the round hole 179 of the cover member 154.

  (39) In the fourth embodiment, the angles at which the locking surfaces 357a and 360a and the guide surfaces 357b and 360b of the ratchet teeth 353 and 355 are provided may be changed. That is, the guide surfaces 357b and 360b may be provided so as to be inclined with respect to the normal direction of the shaft portion 255 rather than the locking surfaces 357a and 360a.

  (40) When viewed in the axial direction of the shaft portion 255, the protruding amounts of the cylinder side ratchet teeth 357 and the screw side ratchet teeth 360 are not changed, but the configuration is not limited thereto.

  For example, the cylinder side ratchet teeth 357 may be formed in a tapered shape. When the cylindrical ratchet teeth 357 are formed in a taper shape, the protruding amount of the cylindrical ratchet teeth 357 may be increased toward the opposite head 250 side in the axial direction of the shaft portion 255. Further, for example, the protruding amount of the screw side ratchet teeth 360 may be smaller as it is closer to the side opposite to the head 250 when viewed in the axial direction of the shaft portion 255.

By applying at least one of the above configurations, the torque applied to the ratchet teeth 357 and 360 can be gradually increased as the shaft portion 255 is screwed. For this reason, when the ratchet teeth 357 and 360 mesh with each other, it is possible to suppress suddenly large torque from being applied to the fracture portion 260, and when the pachinko machine 10 is assembled (the coupling work between the back side structure 102 and the members 153 and 154). In the case where it is performed), it is possible to prevent the fracture portion 260 from being separated before the ratchet teeth 357 and 360 are sufficiently engaged with each other. In addition, when the shaft portion 255 is further screwed and near the completion of the coupling operation between the back-side structure 102 and the members 153 and 154, the engagement relationship between the ratchet teeth portions 353 and 355 is relatively stronger than in the initial stage. Can be. Therefore, according to the present configuration, the ratchet teeth 353 and 355 are engaged with each other while avoiding inadvertent breakage of the breakage portion 260 when the screwing amount of the breakage screw 170 (shaft portion 255) is insufficient. The state can be made strong.
The protruding amount of each ratchet tooth may change continuously (steplessly), or may change intermittently like a stepped shape. When the protrusion amount of each ratchet tooth is continuously changed, the torque applied to each ratchet tooth 357, 360 is suppressed from abruptly changing, and the effect of suppressing suddenly large torque from being applied to the fracture portion 260 is enhanced. It becomes possible.

  Supplementally, it is conceivable that the broken portions 260 are separated by the meshing of the ratchet teeth 357 and 360 before the shaft portion 255 and the thread groove 370 are screwed in the entire range of the length L3. In this case, if the ratchet teeth 357 and 360 are not engaged at all, it is considered that the effect of preventing the looseness of the shaft portion 255 by the ratchet teeth 357 and 360 cannot be obtained. According to this configuration, it is possible to gradually increase the torque applied to the fracture portion 260 and to prevent the fracture portion 260 from being separated in a state where the ratchet teeth 357 and 360 are not engaged at all. As a result, even if the fracture portion 260 is separated before the shaft portion 255 and the screw groove 370 are screwed in the entire region of the length L3, the shaft portion due to the engagement of the ratchet teeth 357, 360. The effect of preventing the loosening of 255 can be obtained.

  (41) The shape of each surface 357a, 357b, 360a, 360b in the fourth embodiment is not limited. For example, at least one of the locking surfaces 357a and 360a and the guide surfaces 357b and 360b may form a curved surface. That is, a part or all of each surface 357a, 357b, 360a, 360b may be curved.

  (42) In the fourth embodiment, the ratchet teeth 353 and 355 are provided with a plurality of ratchet teeth 357 and 360, respectively, but the present invention is not limited to this configuration. That is, it is only necessary that at least one ratchet tooth 357, 360 is provided on each ratchet tooth portion 353, 355, respectively. In this case, it can be said that the ratchet teeth 357 and 360 are intermittently provided on at least one of the ratchet teeth 353 and 355.

  (43) The screw side ratchet tooth portion 355 described in the fourth embodiment is provided in the holder 278, and the cylinder side ratchet tooth portion 353 is formed on the inner peripheral surface of the cylindrical portion 178 so as to mesh with the screw side ratchet tooth portion 355. It may be provided. In this configuration, the holder 278 can be prevented from rotating in the direction in which the shaft portion 255 is loosened, and the shaft portion 255 can be prevented from being rotated in the loosening direction via the holder 278.

  (44) Other types of pachinko machines different from the above embodiment, for example, a pachinko machine in which the electric accessory is released a predetermined number of times when a game ball enters the specific area of the special device, or a game ball in the specific area of the special device The present invention can also be applied to a pachinko machine that generates a big hit when entering, a pachinko machine equipped with other objects, an arrangement ball machine, a sparrow ball, and the like.

  Also, a non-ball-type gaming machine, for example, a plurality of reels with a plurality of types of symbols attached in the circumferential direction, starts rotation of the reel by inserting a medal and operating a start lever, and a stop switch is operated. If a specific symbol or a combination of specific symbols is established on the effective line visible from the display window after the reel has stopped after a predetermined time has passed, a privilege such as paying out medals is given to the player The present invention can also be applied to a slot machine.

  In addition, the gaming machine main body that is supported by the outer frame so as to be openable and closable is provided with a storage unit and a capture device, and the start lever is operated after a predetermined number of game balls stored in the storage unit are captured by the capture device. Thus, the present invention can also be applied to a gaming machine in which a pachinko machine and a slot machine are fused to start the rotation of the reel.

<Invention Group Extracted from the Embodiments>
Hereinafter, the features of the invention group extracted from the above-described embodiment will be described while showing effects and the like as necessary. In the following, for easy understanding, the corresponding configuration in the above embodiment is appropriately shown in parentheses, but is not limited to the specific configuration shown in parentheses.
Feature A1. A gaming machine in which a first member (back-side component 102, receiving member 153) and a second member (cover member 154), which are gaming machine components, are connected by a screw member (breaking screw 170),
The screw member is
A shaft portion (shaft portion 255) including a screw groove screw-coupled to at least one of the first member or the second member;
A head portion (head portion 250) including a tool engaging portion to which a tool for rotating the shaft portion is engaged;
With
The screw member is screwed from the first member side,
The first member is provided with a first engaging portion (cylinder side ratchet tooth portion 353), and the screw member is provided with a second engaging portion (screw side ratchet tooth portion 355), Of the first engaging portion and the second engaging portion, one has a convex portion and the other has a concave portion,
In the state where the first member and the second member are coupled, the first engaging portion and the second engaging portion are engaged, thereby suppressing the loosening of the shaft portion. To play.

  According to the feature A1, in a state where the first member and the second member are connected, the first engagement portion and the second engagement portion are engaged, and loosening of the shaft portion is suppressed. For example, by using a screw member (for example, a break screw) from which the head is separated or a screw member (for example, a one-way screw) provided with a tool engaging portion so that it can be rotated only in the direction in which the shaft portion is tightened. The structure which suppresses unauthorized cancellation | release of connection of a 1st member and a 2nd member can be considered. However, after the resin or adhesive is poured into the peripheral area of the screw member and the screw member and the tool are integrated by the resin or adhesive, etc., the screw member is rotated by operating the tool or the like. Action can be considered. On the other hand, according to this feature, after the first member and the second member are connected, it is possible to prevent the connection from being illegally released by engaging each engaging portion, and the resin or adhesive It is possible to suitably suppress fraudulent acts caused by agents.

  The “convex portion” and the “concave portion” need only be provided at least one place on the first member and the screw member, and a plurality of “convex portions” and “concave portions” are provided on the first member and the screw member, respectively. May be. In addition, “the first member and the second member are connected by the screw member” means that one of the first and second members is fastened by the other member and the screw member. included. Moreover, the thing with which the 1st member and the 2nd member were couple | bonded through the screw member is contained. That is, what is positioned by the screw member is included so that the first member and the second member are not separated by a predetermined distance or more. The same applies hereinafter.

Feature A2. A gaming machine in which a first member (back-side component 102, receiving member 153) and a second member (cover member 154), which are gaming machine components, are connected by a screw member (breaking screw 170),
The screw member is
A shaft portion (shaft portion 255) including a screw groove screw-coupled to at least one of the first member or the second member;
A head portion (head portion 250) including a tool engaging portion to which a tool for rotating the shaft portion is engaged;
A separating part (breaking part 260) for separating the head part from the shaft part by connecting the shaft part and the head part and applying a rotational force of a predetermined torque or more to the tool engaging part;
With
When the head part is separated from the shaft part by the separating part, a holding part (holder 278) is provided to hold the head part on the side opposite to the shaft part,
The screw member is screwed from the first member side,
The first member is provided with a first engaging portion (cylinder side ratchet tooth portion 353), and the screw member is provided with a second engaging portion (screw side ratchet tooth portion 355), Of the first engaging portion and the second engaging portion, one has a convex portion and the other has a concave portion,
In the state where the first member and the second member are coupled, the first engaging portion and the second engaging portion are engaged, thereby suppressing the loosening of the shaft portion. To play.

  According to the feature A2, the first member and the second member can be connected at the shaft portion of the screw member. After connecting the first and second members, the shaft portion and the head portion can be separated by applying a rotational force of a predetermined torque or more to the tool engaging portion. By separating the head portion and the shaft portion, it is difficult to rotate the shaft portion via the head portion, and it is possible to suppress the unauthorized release of the connection between the first and second members. However, with the use of the screw member from which the head is separated, there are concerns about the following problems. That is, in the gaming machine manufacturing process, there is a possibility that the work of collecting the head separated after screwing the screw member becomes complicated and the assembly work efficiency is lowered. In addition, if the separated head cannot be collected, the head remains in the path of the game medium such as a game ball, and the smooth distribution of the game medium is obstructed, or the head interferes with electrical components. It can be a cause of malfunctions and breakdowns.

  It is an object of the present invention to provide a gaming machine that can improve the assembly work efficiency despite the use of a screw member from which the head is separated and can reduce problems caused by the separated head. Is.

  According to this feature, the separated head is held by the holding unit. If the gaming machine is not provided with a holding unit, it may be necessary to collect the head when the head and the shaft are separated. In this case, there is a possibility that the recovery operation of the head separated after screwing the screw member becomes complicated and the assembly work efficiency is lowered. If the separated head cannot be collected, the head remains in the path of the game medium such as a game ball and the smooth distribution of the game medium is obstructed, or the head interferes with the electrical parts and shorts. It may be a cause of malfunction or failure. On the other hand, according to this feature, when the head of the screw member is separated, the head is held by the holding portion. As a result, the head remains at a predetermined position or a predetermined range, and the occurrence of the above inconvenience can be suppressed. Therefore, when assembling a gaming machine using a screw member from which the head is separated, it is not necessary to collect the head, so that the assembly work efficiency can be improved, and problems caused by the separated head are reduced. Can do.

  Further, the first engaging portion and the second engaging portion are engaged with each other in a state where the first member and the second member are connected, and the loosening of the shaft portion is suppressed. For example, even if the head is separated, an illegal act of forcibly rotating the shaft by applying a large torque to the shaft can be considered. In addition, even if the head is separated and the shaft portion cannot be rotated, after pouring resin or adhesive into the peripheral area of the screw member and integrating the screw member and the tool with the resin or adhesive, etc., An illegal act of rotating the screw member by operating the tool or the like can be considered. On the other hand, according to this feature, after the first member and the second member are connected to each other, it is possible to prevent the connection from being illegally released by engaging each engaging portion. It is possible to suitably suppress fraudulent acts caused by agents.

  Further, after the head is separated, an illegal act of directly accessing the region closer to the shaft portion than the separating portion and rotating the screw member in the loosening direction can be considered. For example, an adhesive may be applied to the shaft portion, and the shaft portion and the tool are integrated, and then the tool is operated to rotate the shaft portion in a loosening direction. On the other hand, according to this feature, when the head portion is separated, the holding portion holds the head portion on the side opposite to the shaft portion. Thereby, it is also possible to hide the shaft portion from the opposite shaft portion side with the separated head. In order to rotate the shaft part, it is necessary to operate the axis center of the shaft part. However, if the axis center is hidden by the separated head, access to the axis center of the shaft part can be suppressed. . Therefore, it is possible to suppress an unauthorized act of rotating the screw member in the loosening direction. Further, for example, it is possible to conceal the engagement sites of the first engagement portion and the second engagement portion from the opposite shaft side with the separated head. In this case, it is possible to prevent the first engaging portion and the second engaging portion from being directly accessed and the engagement of each engaging portion being released.

Feature A3. In the feature A2, the screw member further includes an extended portion (first and second enlarged diameter portions 275a, 275b) extended in a direction orthogonal to the axial direction of the shaft portion,
The extension part is provided on the shaft part side of the separation part and between the separation part and the shaft part,
The holding portion is separated by a first restricting portion (step surface 301 formed by the first hole portion 280a and the third hole portion 280c) and a second restricting portion (annular reduced diameter portion 278a) at positions separated in the axial direction. A stepped surface 296) formed integrally with the screw member,
The head and the extended portion are arranged in a region sandwiched between the first restricting portion and the second restricting portion,
While the movement of the head toward the opposite shaft side is restricted by the first restriction part, the movement of the extension part toward the opposite head side is restricted by the second restriction part,
The second restricting portion has a through hole (second hole portion 280b),
Provided on the shaft portion side with respect to the expansion portion is a protrusion (second diameter expansion portion 275b) that protrudes from the holding portion to the shaft portion side through the through hole in the second restriction portion,
The gaming machine, wherein the second engaging portion is provided in the protruding portion.

  According to the feature A3, the head portion and the extension portion are sandwiched between the first restriction portion and the second restriction portion in the holding portion. That is, the head and the extended part are located within a predetermined range of the holding part. In this case, it can be said that the holding member is provided on the screw member. However, if the screw member is installed when the first and second members are connected, the holding unit can be installed at the same time. Therefore, in a configuration having a holding portion that holds the head when the head is separated, it is possible to prevent the assembly work from becoming complicated.

  Moreover, the protrusion part protrudes from the holding | maintenance part side to the 1st member side. And the 2nd engaging part is provided in the protrusion part. In the configuration in which the holding portion is provided, it is possible to suppress the engagement of each engaging portion from being hindered by the holding portion.

  The “second engaging portion” may be provided on the outer peripheral surface of the protruding portion, or may be provided on the surface of the protruding portion on the first member side.

Feature A4. In the feature A3, the first member is provided with an accommodation recess (cylindrical portion 178) for accommodating the holding portion and the head.
The first engagement portion is provided on an inner peripheral surface of the housing recess,
The gaming machine, wherein the second engaging portion is provided on an outer peripheral surface of the protruding portion.

  According to the feature A4, the holding portion and the head are installed in a state of entering the housing recess of the first member. Since the holding portion and the head are in the receiving recess, it is possible to suppress access to each engaging portion from the direction orthogonal to the axial direction of the screw member.

  Moreover, it can suppress that the engaging site | part is directly accessed from the exterior of an accommodation recessed part by each engaging part engaging in the inside of an accommodation recessed part.

  Furthermore, each engaging part is provided so as to oppose the inner peripheral surface of the accommodating recess and the outer peripheral surface of the protruding part. Compared with the case where it is provided at a portion facing the surface, each engaging portion can be reliably engaged. This is because the width of the engaging portion can be ensured in the axial direction of the shaft portion, and it is easy to construct an engaging relationship between the engaging portions.

  Feature 5. In the feature 4, the convex portion is provided in the first engagement portion, and the convex portion is moved toward the concave portion side from the head side toward the concave portion side in the axial direction of the axial portion. The gaming machine is characterized in that it is formed so that the amount of protrusion is large.

  Feature 6 In the feature 4, the convex portion is provided in the second engaging portion, and the convex portion is moved from the head side toward the concave portion as viewed from the axial direction of the shaft portion. A gaming machine, characterized in that it is formed so as to reduce the amount of protrusion.

  According to features 5 and 6, when the screw member is screwed, the engagement relationship between the first and second engagement portions is relatively weak at the initial stage when the first engagement portion and the second engagement portion are engaged. can do. Thereby, it can suppress that a big torque is suddenly applied to the isolation | separation part in the engagement start stage of both engagement parts, and can isolate | separate in a isolation | separation part. Further, when the screw member is further screwed in and near the completion of the joining operation of the first member and the second member, the engagement relationship between the two engaging portions can be made relatively stronger than in the initial stage. .

Therefore, according to this feature, the engagement state between the engagement portions can be strengthened while avoiding inadvertent separation of the separation portion when the screwing amount of the screw member is insufficient.
Feature A7. In any one of features A2 to A6, an insertion hole (mounting hole 159) in which a groove (screw groove 370) to be screw-coupled with the screw groove of the shaft portion is provided,
The gaming machine is characterized in that the groove portion is set in a predetermined region on the back side when viewed from the insertion side of the shaft portion in the insertion hole.

  According to the feature A7, in the insertion hole into which the shaft portion is inserted, the groove portion is provided only on the insertion back side. For this reason, the rotational torque transmitted to the separating portion is not increased much before the connection work between the first member and the second member is completed, and the head is crushed during the connection work between the first member and the second member. It can suppress that a part and a shaft part isolate | separate.

  Feature A8. In the feature A7, the first engaging portion and the second engaging portion are engaged after the screw groove of the shaft portion reaches the groove portion.

  According to the feature A8, the engaging portions are engaged after the screw groove of the shaft portion reaches the groove portion. That is, it is possible to suppress the torque due to the engagement of the engaging portions from being transmitted to the separating portion before the thread groove of the shaft portion reaches the groove portion. Thereby, each engagement part is engaged before the screwing of the groove part and the screw groove starts, in a state where the first side groove and the screw groove are not sufficiently screwed or not screwed at all, It can suppress that a head and a shaft part are separated.

  Feature A9. The gaming machine according to any one of features A2 to A8, wherein the holding portion hides the second engaging portion from the opposite shaft side.

  According to the feature A9, the second engagement portion provided on the screw member is hidden from the opposite shaft portion side by the holding portion. Thereby, it can suppress that the 2nd engaging part is accessed directly.

  Feature A10. In the feature A9, the first member includes an accommodation recess (cylindrical portion 178) that accommodates the holding portion and the head.

  According to the feature A10, the holding portion and the head are installed in a state of entering the housing recess of the first member. Since the holding portion and the head are in the receiving recess, it is possible to suppress access to each engaging portion from the direction orthogonal to the axial direction of the screw member.

Feature A11. In any one of the features A2 to A10, the screw member further includes an extended portion (first and second enlarged diameter portions 275a and 275b) extended in a direction orthogonal to the axial direction of the shaft portion,
The extension part is provided on the shaft part side of the separation part and between the separation part and the shaft part,
The holding portion is separated by a first restricting portion (step surface 301 formed by the first hole portion 280a and the third hole portion 280c) and a second restricting portion (annular reduced diameter portion 278a) at positions separated in the axial direction. A cylindrical portion that is provided on the screw member in a state of integrally forming a stepped surface 296) that covers the outer peripheral side along the axial direction of the head portion and the extended portion;
The head and the extended portion are arranged in a region sandwiched between the first restricting portion and the second restricting portion,
While the movement of the head toward the opposite shaft side is restricted by the first restriction part, the movement of the extension part toward the opposite head side is restricted by the second restriction part,
The second restricting portion has a through hole (second hole portion 280b),
Furthermore, a through hole (first opening 290a) provided in the first restricting portion and through which the tool is passed through the tool engaging portion,
A protruding portion (second enlarged diameter portion 275b) that is provided on the shaft portion side with respect to the expanding portion and protrudes from the holding portion to the shaft portion side through the through hole in the second restricting portion;
With
The second engaging portion is provided on the protruding portion,
A gaming machine, wherein a downward slope toward an engagement portion of each engagement portion is formed on an inner peripheral surface of the second restriction portion.

  According to the feature A11, the head portion and the extension portion are sandwiched between the first restriction portion and the second restriction portion in the holding portion. That is, the head and the extended part are located within a predetermined range of the holding part. In this case, it can be said that the holding member is provided on the screw member. However, if the screw member is installed when the first and second members are connected, the holding unit can be installed at the same time. Therefore, in a configuration having a holding portion that holds the head when the head is separated, it is possible to prevent the assembly work from becoming complicated.

  The protruding portion protrudes from the holding portion side to the first member side. And the 2nd engaging part is provided in the protrusion part. Thereby, in the structure provided with the holding | maintenance part, it can suppress that the engagement of each engaging part is inhibited by the holding | maintenance part.

  The extension part and the head part are covered with the cylinder part. When the head is separated, it is difficult to specify the moving direction of the separated head, such as the head rolling, but the head moves outside from the holding part by covering the extension part and the head. Can be suppressed. That is, the separated head can be held inside the holding portion by the screw member having the holding portion.

  However, since the extended portion is covered with the cylindrical portion, it is conceivable that resin, an adhesive, or the like is poured from the through hole and the holding portion, the extended portion, and the shaft portion are integrated. In the case where the holding part, the extension part, and the shaft part are integrated, by rotating the holding part, the rotational force is transmitted to the shaft part, and an unauthorized act of illegally releasing the connection of each member can be considered. On the other hand, according to this feature, since the downward slope is formed on the inner peripheral surface of the second restricting portion, when the adhesive is poured from the through hole, each engaging portion is connected via the downward slope. It becomes possible to allow the adhesive to reach the engagement site. As a result, it is possible to increase the engagement strength of each engagement portion, and it is possible to increase the effect of suppressing improper acts due to the resin, adhesive, or the like.

Feature A12. In any one of the features A2 to A11, the screw member further includes an extended portion (first and second enlarged diameter portions 275a, 275b) that is extended in a direction orthogonal to the axial direction of the shaft portion,
The extension part is provided on the shaft part side of the separation part and between the separation part and the shaft part,
The holding portion is separated by a first restricting portion (step surface 301 formed by the first hole portion 280a and the third hole portion 280c) and a second restricting portion (annular reduced diameter portion 278a) at positions separated in the axial direction. A cylindrical portion that is provided on the screw member in a state of integrally forming a stepped surface 296) that covers the outer peripheral side along the axial direction of the head portion and the extended portion;
The head and the extended portion are arranged in a region sandwiched between the first restricting portion and the second restricting portion,
While the movement of the head toward the opposite shaft side is restricted by the first restriction part, the movement of the extension part toward the opposite head side is restricted by the second restriction part,
The second restricting portion has a through hole (second hole portion 280b),
Furthermore, a through hole (first opening 290a) provided in the first restricting portion and through which the tool is passed through the tool engaging portion,
A protruding portion (second enlarged diameter portion 275b) that is provided on the shaft portion side with respect to the expanding portion and protrudes from the holding portion to the shaft portion side through the through hole in the second restricting portion;
With
The second engaging portion is provided on the protruding portion,
A gaming machine, wherein the second restricting portion is provided with a restricting portion side through hole (through hole 333) penetrating from the head side toward an engaging portion of each engaging portion.

  According to the feature A12, the head portion and the extension portion are sandwiched between the first restriction portion and the second restriction portion in the holding portion. That is, the head and the extended part are located within a predetermined range of the holding part. In this case, it can be said that the holding member is provided on the screw member. However, if the screw member is installed when the first and second members are connected, the holding unit can be installed at the same time. Therefore, in a configuration having a holding portion that holds the head when the head is separated, it is possible to prevent the assembly work from becoming complicated.

  The protruding portion protrudes from the holding portion side to the first member side. And the 2nd engaging part is provided in the protrusion part. Thereby, in the structure provided with the holding | maintenance part, it can suppress that the engagement of each engaging part is inhibited by the holding | maintenance part.

  The extension part and the head part are covered with the cylinder part. When the head is separated, it is difficult to specify the moving direction of the separated head, such as the head rolling, but the head moves outside from the holding part by covering the extension part and the head. Can be suppressed. That is, the separated head can be held inside the holding portion by the screw member having the holding portion.

  However, since the extended portion is covered with the cylindrical portion, it is conceivable that resin, an adhesive, or the like is poured from the through hole and the holding portion, the extended portion, and the shaft portion are integrated. That is, a fraudulent act may be considered in which the holding portion, the extension portion, and the shaft portion are integrated, and the holding portion is rotated to give the rotational force to the shaft portion to illegally release the connection between the members. On the other hand, according to this feature, the restriction part side through hole is provided in the second restriction part, and when the adhesive is poured from the through hole in the first restriction part, the restriction part side through hole is passed through. It becomes possible to make the adhesive reach the engaging portion of each engaging portion. As a result, it is possible to increase the engagement strength of each engagement portion, and it is possible to increase the effect of suppressing improper acts due to the resin, adhesive, or the like.

  Feature A13. In any one of the characteristics A1 to A12, the first engagement portion and the second engagement portion are rotatably engaged in a direction in which the shaft portion is tightened, and the shaft portion is loosened. A game machine characterized by being engaged so as not to rotate or difficult to rotate.

  According to the feature A13, when the respective engaging portions are engaged, the shaft portion can be rotated in the tightening direction. Thereby, the screw connection of the shaft portion is not hindered by the engagement of the engaging portions. For example, the structure of this feature can be suitably realized by forming each engaging portion by ratchet teeth.

The above feature group is “ Pachinko machines, slot machines, and the like are known as gaming machines. These gaming machines are electronic devices such as a CPU (Central Processing Unit) and a ROM in which a control program related to the game is stored. A control board on which components are mounted is provided, and a series of games are controlled by the control board.In recent years, some CPUs and ROMs are integrated into one chip and mounted on the control board. In this type of gaming machine, for example, for the purpose of obtaining illegal profits, for example, the control board is illegally removed and the ROM (the chip if the CPU or ROM is integrated into one chip) is replaced. Many illegal actions have been reported, such as changing game contents or inputting an illegal electric signal to the control board from the outside using lead wires, etc. As an example of countermeasures against fraud, a special screw member called a rupture screw, not a normal screw member, is used as a fixing means for fixing a plurality of box components constituting a board box to each other. (For example, refer to Patent Document 1.) This type of screw member is engaged with a shaft portion including a screw groove to be screwed into a box structure and a tool for rotating the shaft portion. And a separation portion that separates the head portion and the shaft portion when a rotational force of a predetermined torque or more is applied to the tool engagement portion. After the body is fastened, the head is separated from the shaft portion by applying a rotational force of a predetermined torque or more to the tool engaging portion, whereby the rotational force in the loosening direction cannot be transmitted to the shaft portion, Box composition phase In this way, the special screw member is used between the board box and its installation parts. It can be applied to other than the mutual fastening of the box components, such as fastening. " However, even if the head is separated, the rotational force in the loosening direction is forcibly transmitted to the shaft portion. It is conceivable that the shaft portion is rotated in the loosening direction and the fastening state between the box structural bodies is released.The present invention has been made in view of the above-described circumstances and the like, and is a screw member. in the gaming machine using, after assembly operations, division to be solved by the invention in that it is an object. "to provide a game machine capable of suppressing that the fastening by the screw member is released This invention was made with. The basic configuration of various gaming machines to which the above features can be applied is shown below.

  Pachinko gaming machine: operation means (handle device 59) operated by the player, game ball launching means (game ball launching mechanism 50) for launching a game ball based on the operation of the operation means, and the launched game ball And a ball path (inner and outer rail portions 47 and 48) for guiding the game ball to a predetermined game area, and each game component arranged in the game area, and a game ball is placed in a predetermined ball entry part among these game parts. A gaming machine that gives a bonus to a player when entering a ball.

  Revolving type gaming machine such as a slot machine: equipped with a picture display device for variably displaying a plurality of pictures, variably starting display of the plurality of pictures due to the operation of the start operation means, and due to the operation of the stop operation means In addition, the game machine is configured such that the variable display of the plurality of patterns is stopped when a predetermined time elapses and a privilege is given to the player according to the pattern after the stop.

  Ball-use belt-type game machine: Equipped with variable display means that displays the symbol sequence consisting of multiple symbols in a variably displayed state, and then stops and displays the symbol sequence. The special game state (bonus) that is advantageous to the player on the condition that the change of the symbol is stopped due to the operation of the operating means or when the predetermined time elapses, and the final stop symbol at the time of the stop is a specific symbol A throwing device that performs a throwing process for taking in a game ball from the ball tray and a payout device for paying out the game ball to the ball tray, A gaming machine configured such that the operation of the starting operation means is made effective when a game ball is inserted by.

  DESCRIPTION OF SYMBOLS 10 ... Pachinko machine, 47, 48 ... Inner and outer rail part, 50 ... Game ball launching mechanism, 59 ... Handle device, 63 ... Main control device, 91 ... Main control board, 92 ... Substrate box, 101 ... Front side structure, DESCRIPTION OF SYMBOLS 102 ... Back side structure, 103 ... Front side peripheral part, 153 ... Receiving member, 154 ... Cover member, 169 ... Communication hole, 170 ... Breaking screw, 178 ... Cylindrical part, 178b ... Uneven part on the cylinder side, 178c ... Contact part 178d: Inclined surface, 179 ... Round hole, 250 ... Head, 255 ... Shaft part, 260 ... Breaking part, 275a, 275b ... First and second enlarged diameter parts, 275c ... Screw side uneven part 275c, 278 ... Holder 278a: annular reduced diameter portion, 280a-280c ... 1st to 3rd hole, 290a ... 1st opening, 296 ... step surface, 301 ... step surface, 330 ... inclined surface, 333 ... through hole, 353 ... cylinder side Ratchet teeth, 55 ... Screw side ratchet teeth, 357 ... Cylinder side ratchet teeth, 357a ... Cylinder side locking surface, 357b ... Cylinder side guide surface, 360 ... Screw side ratchet teeth, 360a ... Screw side locking surface, 360b ... Screw side guide Surface, 370 ... screw groove.

Claims (1)

A gaming machine in which a first member and a second member, which are gaming machine components, are fastened by screw members,
The screw member is
A shaft portion including a thread groove that is screw-coupled to at least one of the first member or the second member;
A head including a tool engaging portion with which a tool for rotating the shaft is engaged;
An extended portion extended in a direction orthogonal to the axial direction of the shaft portion;
With
The extension part is provided on the shaft part side of the head part and between the head part and the shaft part,
An accommodating portion for accommodating the head and the extension portion is provided,
The accommodating portion is formed in a cylindrical shape extending in the axial direction of the shaft portion , and covers the head portion and the extension portion from the outer periphery,
The screw member is screwed from the first member side,
The accommodating portion is provided together with the screw member in a state of integrally having a first restricting portion and a second restricting portion at a position separated in the axial direction,
The head and the extended portion are arranged in a region sandwiched between the first restricting portion and the second restricting portion,
With the movement of the counter-shaft-side of the head and the extended portion is restricted by the first restricting portion, movement restriction to the head and the shaft portion side of the extended portion by the second restricting portion Has been
The first member has an inclined surface that descends toward an area shielded by the head and the extension part ,
A gaming machine comprising a space between the expansion portion and the inclined surface in a state where the first member and the second member are fastened by the screw member .

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