JP2007268089A - Mechanism for blocking release of assembly state of component - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mechanism for blocking the release of the assembly state of components with a novel structure by enabling the blocking of the assembly state of the components of a game machine on the body of the game machine advantageously. <P>SOLUTION: With a board case 26 assembled on the body 44 of the game machine, a spring pin 50 which is inserted across a case side cylinder part 32 and a body side cylinder part 46 is fitted into at least one of the case side cylinder part 32 and the body side cylinder part 46, thereby fixing the board case 26 on the body 44 of the game machine. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a component assembly state release prevention mechanism for preventing release of a state in which a gaming machine component such as a board case in which a control board for controlling the operation of the gaming machine is housed is assembled in a gaming machine body. is there.

  In recent years, game machines such as pachinko machines and slot machines have been devised in various ways to entertain players. And most of these devices are based on electrical control by a control circuit including various circuit elements.

  In general, the control board on which the control circuit as described above is formed is accommodated in a board case as a gaming machine component, and the board case is generally attached to an appropriate position on the back side of the gaming machine body. (See Patent Document 1).

  Incidentally, some control boards housed in the board case are very important for the gaming machine, such as a main control board for controlling the entire operation of the gaming machine. And the board | substrate case in which such a control board is accommodated is prevented from opening of the board | substrate case itself from patent document 1 from a viewpoint of unauthorized modification prevention.

  However, from the viewpoint of prevention of unauthorized modification, as described in Patent Document 1, the board case is simply attached to the bracket provided on the back side of the game board. It is difficult to obtain sufficient anti-tampering effects.

  Therefore, as described in Patent Document 2, holes are formed in each of the board case and the gaming machine main body, and solid board is fitted into these holes to fix the board case to the gaming machine main body. Thus, there is known a substrate case removal preventing mechanism that prevents the parallel movement of the substrate case with respect to the gaming machine body, that is, the parallel movement of the substrate case in the direction of removing the substrate case from the gaming machine body.

  By the way, the substrate case is generally formed of, for example, a transparent transparent synthetic resin material such as polycarbonate (PC) so that illegal acts on the control board accommodated therein can be easily confirmed from the outside. Is. If it does so, there exists a possibility that a dimensional error may arise at the time of fabrication to a hole formed in a substrate case.

  In addition, the cross section in the direction perpendicular to the axis of the hole formed in the board case or the gaming machine main body may be deformed by the ambient temperature of the gaming machine or the heat generated by the gaming machine in operation.

  Therefore, in the substrate case removing mechanism as described in Patent Document 2, it may be difficult to fit the solid pin into both holes, or the member may be damaged by forcibly fitting the solid pin. Furthermore, there is a possibility that the solid pin may be easily removed, and it may be difficult to sufficiently perform the function as the board case removing mechanism.

Japanese Patent No. 3527067 JP 2001-161891 A

  Here, the present invention has been made against the background of the circumstances as described above, and the problem to be solved is to advantageously prevent the assembled state of the gaming machine parts from the gaming machine body. An object of the present invention is to provide a part assembly state release prevention mechanism having a novel structure that can be achieved.

  Hereinafter, the aspect of this invention made | formed in order to solve such a subject is described. In addition, the component employ | adopted in each aspect as described below is employable by arbitrary combinations as much as possible.

  The present invention relates to a part assembly state release prevention mechanism for preventing release of an assembly state of a gaming machine part with respect to a gaming machine body, the part side cylinder portion integrally formed with the gaming machine part, and the gaming machine body integrally The formed main body side cylinder portion is positioned so that the respective internal spaces are connected in the assembled state in which the gaming machine parts are assembled to the gaming machine main body, and the spring pin is the inner space of the component side cylindrical portion. And the game machine parts are fixed to the game machine body by being inserted over at least one of the parts side cylinder part and the body side cylinder part, It is characterized by making it impossible to cancel the assembled state of the gaming machine main body.

  In the component assembly state release prevention mechanism having the structure according to the present invention as described above, in the assembled state of the gaming machine component with respect to the gaming machine main body, the internal space of the component side cylindrical portion and the internal space of the main body side cylindrical portion are arranged. The game pin and the gaming machine main body are fixed by fitting the spring pin inserted so as to straddle at least one of the component side cylindrical portion and the main body side cylindrical portion.

  Then, in a state where the spring pin is fitted to at least one of the component side cylinder part and the main body side cylinder part, an external force inward in the direction perpendicular to the axis with respect to the spring pin, that is, an external force in the direction of tightening the spring pin Is exerted, and the cross section of the spring pin in the direction perpendicular to the axis is deformed.

  As a result, a force that causes the spring pin to return to the original shape, that is, a restoring force based on a spring action in a direction perpendicular to the axis of the spring pin itself may be exerted on the cylindrical portion on which the spring pin is fitted. It becomes possible. As a result, when the spring pin is displaced away from the cylindrical portion, the spring pin is displaced between the outer peripheral surface of the spring pin and the inner peripheral surface of the cylindrical portion on which the spring pin is fitted. It is possible to advantageously ensure the frictional force acting in the direction of obstruction.

  Therefore, in the present invention, deformation of the part side cylinder part and the main body side cylinder part based on a change in ambient temperature due to a dimensional error at the time of molding of the part side cylinder part or the main body side cylinder part or heat generated by the game machine in operation. It is possible to advantageously avoid problems caused by the above, and stabilize the state in which the spring pin is fitted to at least one of the component side cylinder part and the main body side cylinder part. As a result, it is possible to advantageously realize a good fixed state between the gaming machine part and the gaming machine body, and advantageously prevent the assembled state of the gaming machine part and the gaming machine body from being released. Become.

  In the present invention, the component side cylinder part and the main body side cylinder part may each be one, or may be two or more.

  Further, in the present invention, “the state in which the internal spaces of the component side cylinder portion and the main body side cylinder portion are connected” means that the spring pin can be inserted so as to straddle the component side cylinder portion and the main body side cylinder portion. Say. In that case, the component side cylinder part and the main body side cylinder part may overlap with each other, or may be spaced apart with an appropriate gap.

  Further, in the present invention, the cross-sectional shape in the direction perpendicular to the axis of the internal space of the component side cylinder part or the main body side cylinder part is not particularly limited as long as it is a cross-sectional shape into which the spring pin can be inserted. Various cross-sectional shapes such as a circular shape, an elliptical shape, a polygonal shape, and a distorted shape thereof can be adopted, but it is desirable that they substantially correspond to the external shape of the cross-section in the direction perpendicular to the axis of the spring pin. As a result, it is possible to advantageously secure a contact area between the outer peripheral surface of the spring pin and the inner peripheral surface of the cylindrical portion on which the spring pin is fitted. As a result, it is possible to advantageously secure the frictional force generated between the outer peripheral surface of the spring pin and the inner peripheral surface of the cylindrical portion on which the spring pin is fitted, and the axial displacement of the spring pin is advantageously improved. It becomes possible to stop.

  Furthermore, in the present invention, the size and shape of the cross section in the direction perpendicular to the axis of the component side cylinder part and the main body side cylinder part do not have to be constant in the axial direction. The cross-sectional size and shape in the direction perpendicular to the axis may be different.

  Further, the spring pin in the present invention is not particularly limited as long as it has a shape that generates a spring action in a direction perpendicular to the axis. For example, the spring pin extends over the entire length in the axial direction in a part of the circumferential direction of the spring pin. The shape in which the notch is formed, the peripheral wall is a cylindrical shape that is continuous in the circumferential direction, the cross-sectional shape in the direction perpendicular to the axis is a polygon that has a roundness at each apex, and A cross-sectional shape in the direction perpendicular to the axis is spiral, and a shape in which at least a part of the peripheral wall overlaps in the direction perpendicular to the axis is adopted. Therefore, when a cut is formed over the entire length in the axial direction in a part of the circumferential direction of the spring pin, the cut does not need to extend straight along the axial direction of the spring pin, For example, it may extend in a direction inclined with respect to the axial direction, or may extend so as to meander.

  Furthermore, in the present invention, the outer shape of the cross section in the direction perpendicular to the axis of the spring pin is not particularly limited as long as it has a shape that causes a spring action in the direction perpendicular to the axis of the spring pin. A substantially oval shape, a substantially polygonal shape, or a distorted shape thereof is employed.

  Furthermore, in the present invention, the thickness dimension of the peripheral wall of the spring pin may be constant in the circumferential direction or may be different. Therefore, in the case of a spring pin in which a cut is formed over the entire length in the axial direction in a part of the circumferential direction, the thickness dimension of the peripheral wall is the largest at the portion facing the cut in the direction perpendicular to the axis. On the other hand, it is desirable that the thickness dimension is gradually reduced from the portion to the cut along the circumferential direction. Thereby, the stress which generate | occur | produces in a cylinder part in the state by which the spring pin was fitted by the cylinder part is made uniform in the circumferential direction. As a result, in a state where the spring pin is fitted to the cylinder portion, the outer peripheral surface of the spring pin can be brought into close contact with the inner peripheral surface of the cylinder portion on which the spring pin is fitted. It is possible to more advantageously prevent displacement of the pin in the pulling direction.

  Furthermore, in the present invention, the spring pin has a shape in which a cut is formed over the entire length in the axial direction in a part of the circumferential direction, and the cross-sectional shape in the direction perpendicular to the axis of the circumferential wall is spiral. When the shape is such that at least a part of the peripheral wall overlaps in the direction perpendicular to the axis, for example, by a method of forming a notch over the entire length of the tube in the axial direction, a method of rounding a plate material, etc. A spring pin is advantageously formed. Further, in the present invention, when the spring pin is a shape in which the peripheral wall is continuous in the circumferential direction and the cross-sectional shape in the direction perpendicular to the axis is a polygon having roundness at each apex, for example, The desired spring pin is advantageously formed by drawing or extruding.

  In the present invention, the material for forming the spring pin is not particularly limited as long as it can advantageously obtain a spring action in a direction perpendicular to the axis. For example, steel, spring steel, and stainless steel for springs are used. Etc. can be adopted.

  Furthermore, in the present invention, the insertion protrusion protruding from the central portion of the plate-like piece is inserted and fixed at the end opposite to the preceding end when the spring pin is inserted, and the gaming machine component and game In a state where the machine main body is fixed, it is desirable that the plate-like piece is locked to either the component side cylinder portion or the main body side cylinder portion on the opposite side to the insertion direction of the spring pin. Thereby, the displacement to the direction on the opposite side to the insertion direction of a spring pin will be blocked | prevented based on the latching action of the plate-shaped piece with respect to any one of a component side cylinder part and a main body side cylinder part. As a result, it is possible to further stabilize the fixed state between the gaming machine component and the gaming machine main body.

  Therefore, the locking state of the plate-like piece with respect to either the component-side cylinder portion or the main-body-side cylinder portion is realized by the plate-like piece being locked to the step formed on the inner peripheral surface of the cylinder portion. The plate-like piece may be fitted into an opening hole formed in the cylinder portion so as to open in a direction perpendicular to the axis, and the plate-like piece is locked to the inner peripheral surface of the opening hole. It may be realized by.

  Hereinafter, in order to clarify the present invention more specifically, embodiments of the present invention will be described in detail with reference to the drawings.

  First, FIG. 1 shows a pachinko machine 10 as a gaming machine. The pachinko machine 10 has a structure in which a vertical rectangular middle frame 14 is assembled to be openable and detachable on the front side of the opening of the outer frame 12 that forms the outer shell of the machine body. A game board (not shown) in which a game area (not shown) is formed is detachably attached to the middle frame 14, and the game area is attached to the middle frame 14 so as to be openable and closable. The player can visually recognize the glass plate 18 held by the player 16. Then, when the player rotates the operation lever 22 rotatably attached to the operation handle 20 provided in the middle frame 14, it is stored in the upper plate 24 provided in the middle frame 14. A game ball is sent to a launching device (not shown) via a ball feed mechanism (not shown) and then launched toward a game area.

  FIG. 2 shows the back side of the pachinko machine 10. On the back side of the pachinko machine 10, a board case 26 is assembled as a gaming machine part that houses a main control board 27 that controls the overall operation of the pachinko machine 10.

  As shown in FIG. 3, the substrate case 26 has a structure in which a lid member 30 is assembled to the case main body 28. The main control board 27 is accommodated in an internal space formed by assembling the case main body 28 and the lid member 30. In this case, each of the members 28 and 30 constituting the substrate case 26 is formed of a transparent synthetic resin material such as polycarbonate (PC). Thereby, the main control board 27 accommodated in the board case 26 can be visually recognized from the outside.

  The substrate case 26 is provided with a lock mechanism that prevents the case body 28 and the lid member 30 from being released from the assembled state. Since such a lock mechanism is conventionally known, a detailed description thereof and The illustration is omitted. In addition, since a method for assembling the lid member 30 with respect to the case main body 28 and a method for accommodating the main control board are also conventionally known, detailed description thereof will be omitted.

  In addition, a plurality of (in this embodiment, four) case-side cylindrical portions 32 as component-side cylindrical portions are integrally formed in a portion constituting one wall portion in the longitudinal direction of the substrate case 26. Therefore, in this embodiment, each case side cylinder part 32 is formed of a frame body or a cylindrical body opening in a rectangular cross section as shown in FIGS. 4 and 5. A lower housing portion 38 having a cylindrical shape with an internal space 36 extending straightly with a substantially constant cross-sectional shape with respect to the bottom wall has a structure projecting downward in the axial direction on the same central axis. The upper accommodation portion 34 and the lower accommodation portion 38 are communicated with each other through a communication hole formed in the bottom wall of the upper accommodation portion 34. In particular, in the present embodiment, the opening direction of each case side cylinder portion 32 (direction in which the central axis extends), that is, the opening direction of the upper housing portion 34 and the lower housing portion 38 (direction in which the central axis extends) is the substrate case. 26 is a direction substantially orthogonal to both the longitudinal direction and the width direction.

  The case side cylindrical portion 32 having such a structure is attached to a portion in which the upper accommodation portion 34 constitutes one longitudinal wall portion of the substrate case 26 by a pair of attachment pieces 40 and 40. Thereby, each case side cylinder part 32 is integrally formed with respect to the outer-periphery edge part of the board | substrate case 26. As shown in FIG. Note that one longitudinal wall portion of the substrate case 26 to which the case side cylindrical portion 32 is attached may be one of a pair of side wall portions opposed to each other in the longitudinal direction in the case body 28, or the lid member 30. 1 may be one of a pair of side wall portions opposed to each other in the longitudinal direction.

  The board case 26 having the above-described structure is rotated around the rotation shaft 42 provided on the other wall portion in the longitudinal direction with respect to the game board or an appropriate member provided on the back side of the game board. It can be assembled in a possible state.

  Therefore, in this embodiment, as shown in FIG. 2 and FIG. 6, the game ball that has been discharged to the back side of the game board by winning the winning device provided in the game area is guided to a predetermined position. For this purpose, the substrate case 26 is assembled in a state of being rotatable about one axis with respect to a synthetic resin back side cover member 44 fixed to the back side of the game board. Specifically, the substrate case 26 is inserted into a support hole (not shown) formed in a support protrusion 45 projecting from the surface of the back cover member 44 so that the substrate case 26 is back cover member. It is assembled in a state where it can be rotated around the rotation shaft 42 with respect to 44. When the rotating shaft 42 is inserted into a support hole (not shown) formed in the support protrusion 45, the substrate case 26 moves parallel to the surface of the back cover member 44 (from the top to the bottom in FIG. 6). (Translation).

  In addition, the back side cover member 44 has a case side tube portion provided at one end in the longitudinal direction of the substrate case 26 as shown in FIG. 7 in a state where the substrate case 26 is superimposed on the back side cover member 44. 32, and in particular, in the present embodiment, the main body side cylindrical portion 46 is provided at a position corresponding to the lower accommodating portion 38, respectively. That is, the same number of main body side cylinders 46 as the case side cylinders 32 are provided. In FIG. 7, a spring pin 50 to be described later is not shown, and only the positional relationship between the case side cylinder portion 32 and the main body side cylinder portion 46 is shown.

  The main body side cylindrical portion 46 has a cylindrical shape including an inner space 48 that extends straight with a substantially constant circular cross section. In particular, in this embodiment, the main body side cylindrical portion 46 has a bottomed cylindrical shape including a bottom wall portion 47. Yes. Therefore, in the present embodiment, each main body side cylinder portion 46 is integrally formed with the back side cover member 44 such that the bottom wall portion 47 side protrudes from the back side cover member 44 to the game board side. In particular, in the present embodiment, the opening end surface of the main body side cylindrical portion 46 is positioned on the same plane as the surface of the back side cover member 44. In addition, the opening end surface of the main body side cylindrical portion 46 may protrude from the surface of the back side cover member 44.

  In the present embodiment, the central axis of the main body side cylindrical portion 46 is substantially orthogonal to the surface of the back side cover member 44. Accordingly, the main body side cylindrical portion 46 and the case side cylindrical portion 32 are positioned on the same central axis line in a state where the substrate case 26 is overlapped with the back side cover member 44.

  As described above, the main body side cylindrical portion 46 and the case side cylindrical portion 32 are positioned on the same central axis, whereby the inner space 48 of the main body side cylindrical portion 46 and the inner space of the case side cylindrical portion 32 (in particular, An internal space 36) of the lower housing portion 38 is positioned so as to allow insertion of a spring pin 50 described later. As is clear from this, in the present embodiment, the main body side cylindrical portion 46 and the case side cylindrical portion 32 are positioned on the same central axis in a state where the substrate case 26 is assembled to the back side cover member 44. Thus, the internal space 48 of the main body side cylindrical portion 46 and the internal space of the case side cylindrical portion 32 (particularly, the internal space 36 of the lower accommodating portion 38) are connected. In the present embodiment, as described above, in the state where the main body side cylindrical portion 46 and the case side cylindrical portion 32 are positioned on the same central axis, the opening end surface of the main body side cylindrical portion 46 and the case side cylindrical portion 32 A clearance is formed between the lower end surface of the lower housing portion 38. Further, as is apparent from the above description, in this embodiment, the gaming machine main body is configured including the back side cover member 44 fixed to the gaming board assembled to the middle frame 14.

  Next, a method for fixing the substrate case 26 to the back side cover member 44 will be described. First, the substrate case 26 is rotated around one axis and overlapped with the back side cover member 44. Thereafter, the spring pin 50 is inserted into the main body side cylindrical portion 46 and the case side cylindrical portion 32 positioned on the same central axis.

  Therefore, the spring pin 50 of the present embodiment is formed of steel, spring steel, spring stainless steel, or the like, and as shown in FIGS. It has a cylindrical shape in which a cut 52 extending while meandering is formed. Note that such a spring pin 50 is advantageously formed by, for example, rounding a plate material whose both ends in the longitudinal direction are formed in a sawtooth shape using an appropriate machine or tool. Further, the spring pin 50 of the present embodiment is rounded over the entire circumference with respect to the outer corners at both ends in the axial direction. Accordingly, the spring pin 50 is advantageously fitted into the case side cylinder part 32 and the main body side cylinder part 46 from any side in the axial direction.

  In the present embodiment, the assembly pin 54 is attached to such a spring pin 50. The assembly pin 54 is formed of a synthetic resin material such as ABS, and as shown in FIGS. 10 and 11, the assembly pin 54 has a thickness from the central portion of the plate-like piece 56 that is a rectangular flat plate as a whole. An insertion shaft 58 as an insertion protrusion protruding to one side in the direction is integrally formed.

  In the present embodiment, chamfering is performed over the entire length in the width direction of the plate-like piece 56 with respect to the lower corners at both ends in the longitudinal direction of the plate-like piece 56. Thereby, it becomes possible to move advantageously from the upper side opening in the upper side accommodating part 34 of the plate-shaped piece 56 mentioned later to a bottom wall.

  As shown in FIG. 12, the assembly pin 54 having such a structure is fixed to the spring pin 50 by inserting and fixing the insertion shaft 58 from one axial end side of the spring pin 50. Are assembled. As is apparent from this, in the present embodiment, one end of the spring pin 50 in the axial direction is the end opposite to the preceding end.

  Although not clearly shown in the drawings, in the present embodiment, as described above, the assembly pin 54 is assembled to the spring pin 50, and the axial direction above the spring pin 50 (the assembly pin 54 is assembled). When viewed from the other side, the spring pin 50 is obscured by the plate-like piece 56 of the assembly pin 54.

  As described above, the spring pin 50 to which the assembly pin 54 is assembled as shown in FIG. 13 is moved from the other axial end side to which the assembly pin 54 is not attached to the case-side cylinder portion 32. It is supposed to be inserted. As is clear from this, in the present embodiment, the other axial end of the spring pin 50 is the leading end.

  As described above, when the spring pin 50 is inserted into the case-side cylinder portion 32, a force for tightening the spring pin 50 acts on a portion of the spring pin 50 that is fitted in the lower housing portion 38. Will be. As a result, a force (restoring force) that causes the spring pin 50 to return to the original shape acts on the lower housing portion 38.

  Then, when the restoring force by the spring pin 50 as described above acts on the lower housing portion 38, the outer peripheral surface of the portion of the spring pin 50 that is fitted in the lower housing portion 38 is the inner side of the lower housing portion 38. It will be pressed against the peripheral surface. As a result, the spring pin 50 acts in a direction that prevents axial displacement of the spring pin 50 between the outer peripheral surface of the portion fitted in the lower housing portion 38 and the inner peripheral surface of the lower housing portion 38. It is possible to generate a frictional force.

  Then, as described above, the spring pin 50 is further fitted against the frictional force from the state in which the spring pin 50 is fitted in the lower accommodating portion 38, and as shown in FIG. 50 is inserted across the main body side tube portion 46 and the case side tube portion 32.

  Therefore, in the present embodiment, as described above, the spring pin 50 is inserted into the main body side cylindrical portion 46 of the spring pin 50 in a state of being inserted across the main body side cylindrical portion 46 and the case side cylindrical portion 32. The force which fastens the spring pin 50 will act also on the part which is. As a result, a force (restoring force) that the spring pin 50 tries to return to the original shape acts on the main body side cylindrical portion 46. As a result, the spring pin 50 is prevented from being displaced in the axial direction between the outer peripheral surface of the portion of the spring pin 50 fitted in the main body side cylindrical portion 46 and the inner peripheral surface of the main body side cylindrical portion 46. It is possible to generate an acting frictional force.

  As is clear from this, in the present embodiment, the spring pin 50 is inserted between the main body side cylinder portion 46 and the case side cylinder portion 32 and the spring pin 50 is inserted between the main body side cylinder portion 46 and the case. It is fitted and fixed to both of the side tube portions 32. In the present embodiment, the substrate case 26 is moved by the frictional force generated between the outer peripheral surface of the portion of the spring pin 50 fitted in the main body side cylindrical portion 46 and the inner peripheral surface of the main body side cylindrical portion 46. Rotation in the direction separating from the back cover member 44, that is, rotation in a direction to release the fixed state of the substrate case 26 and the back cover member 44 is prevented, and the fixed state of the substrate case 26 and the back cover member 44 is prevented. Will be maintained. As a result, the substrate case 26 assembled so as to be rotatable about one axis with respect to the back side cover member 44 is separated from the back side cover member 44, that is, the assembled state of the substrate case 26 with respect to the back side cover member 44 is released. It becomes possible to stop.

  As is clear from this, in the present embodiment, the case-side tube portion 32 formed integrally with the substrate case 26, the main-body-side tube portion 46 formed integrally with the back-side cover member 44, and these cases The release prevention mechanism 60 as the board case assembly state release prevention mechanism is configured including the spring pin 50 inserted across the side cylinder portion 32 and the main body side cylinder portion 46.

  In the present embodiment, as described above, in the inserted state in which the spring pin 50 is inserted across the main body side cylinder portion 46 and the case side cylinder portion 32, one end of the spring pin 50 in the axial direction is the case side. The other end of the spring pin 50 in the axial direction is positioned in the main body side cylindrical portion 46 while being positioned in the cylindrical portion 32.

  Further, in this embodiment, when the spring pin 50 is further fitted from the state shown in FIG. 13, both longitudinal ends of the plate-like pieces 56 of the assembly pin 54 fixed to the spring pin 50 are accommodated in the upper side. It is made to slide with respect to a pair of opposing wall parts 62 and 62 which are made to oppose in the longitudinal direction in the part 34 (left-right direction in FIG. 13).

  Therefore, in this embodiment, the distance between the opposing surfaces of the pair of opposing wall portions 62, 62 is gradually shortened from the upper opening of the upper housing portion 34 to the bottom wall. Accordingly, the longitudinal ends of the plate-like piece 56 of the assembly pin 54 fixed to the spring pin 50 gradually warp toward the upper opening side of the upper housing portion 34 as it goes to the bottom wall side of the upper housing portion 34. It is supposed to be.

  In the present embodiment, when the plate-like piece 56 reaches the bottom wall of the upper accommodating portion 34, each of both end portions in the longitudinal direction of the plate-like piece 56 is warped from the upper opening side of the upper accommodating portion 34. In addition to returning to the state of FIG. 6, the opening hole 64 formed in the vicinity of the bottom wall of each opposing wall portion 62 enters. As a result, both end portions in the longitudinal direction of the plate-like piece 56 are formed on the inner peripheral surface 66 of the opening hole 64 formed in each opposing wall portion 62 (particularly, on the opposite side to the insertion direction of the spring pin 50). (The opening side surface) is displaced to the upper opening side of the upper receiving portion 34 of the assembly pin 54, and further, the axial displacement of the spring pin 50, that is, the spring pin 50 Displacement in the direction opposite to the insertion direction is prevented.

  In the present embodiment, the spring pin 50 is fitted into the case side cylindrical portion 32, and the upper surface of the plate-like piece 56 is positioned at the same height as the upper end surface of the case side cylindrical portion 32. As shown in FIG. 15, a gap is formed between the widthwise ends of the plate-like piece 56 and the upper accommodating portion 34.

  In particular, in the present embodiment, although not necessarily clear on the drawing, the plate-like piece 56 is plate-like from the state where the upper surface of the plate-like piece 56 is positioned at the same height as the upper end surface of the case-side cylinder portion 32 (upper accommodation portion 34). A gap is formed between both ends in the width direction of the plate-like piece 56 and the upper accommodating portion 34 until both ends in the longitudinal direction of the piece 56 enter the opening holes 64, 64. Thus, only the both longitudinal ends of the plate-like piece 56 are open on the upper side of the upper accommodating portion 34 until the spring pin 50 is inserted across the main body side cylindrical portion 46 and the case side cylindrical portion 32. It is designed to warp to the side. As a result, the resistance from the state in which the spring pin 50 is fitted into the case side cylindrical portion 32 to the state in which the spring pin 50 is inserted across the main body side cylindrical portion 46 and the case side cylindrical portion 32 is reduced. It becomes possible.

  Although not explicitly shown in the drawings, in the present embodiment, only one of the combinations of the case side cylinder portion 32 and the main body side cylinder portion 46 positioned on the same central axis is shown in FIG. 14, the spring pin 50 is fitted into both the case side cylinder portion 32 and the main body side cylinder portion 46, while in other combinations, as shown in FIG. 13, The spring pin 50 is fitted only in the case side cylinder portion 32.

  In the present embodiment, the spring pin 50 is fitted and fixed to both the case side cylinder part 32 and the main body side cylinder part 46, but the case side cylinder part 32 is connected to the substrate case 26. The mounting pieces 40, 40 are cut with a nipper or the like, and the case-side cylindrical portion 32 is separated from the substrate case 26, so that the substrate case 26 rotates about one axis relative to the back cover member 44, that is, the substrate case. 26 can be rotated in a direction to release the fixed state with respect to the back cover member 44.

  In the release preventing mechanism 60 having such a structure, the main body side cylinder positioned on the same central axis in a state where the substrate case 26 is assembled to the back cover member 44 so as to be rotatable about one axis. A spring pin 50 inserted across the portion 46 and the case side tube portion 32 is fitted and fixed to each of the main body side tube portion 46 and the case side tube portion 32.

  In this case, the spring pin 50 inserted across the main body side cylindrical portion 46 and the case side cylindrical portion 32 is formed into a cylindrical shape divided at a part in the circumferential direction, and generates a spring action in a direction perpendicular to the axis. As a result, the spring pin 50 is inserted across the main body side cylindrical portion 46 and the case side cylindrical portion 32 and counteracts the force exerted by the case side cylindrical portion 32 to tighten the spring pin 50. A force is applied to the case side tube portion 32, and a reaction force exerted by the main body side tube portion 46 to force the spring pin 50 is applied to the main body side tube portion 46.

  Accordingly, the spring pin 50 acts in a direction that prevents the axial displacement of the spring pin 50 between the outer peripheral surface of the portion fitted in the case side cylindrical portion 32 and the inner peripheral surface of the case side cylindrical portion 32. And the axial direction of the spring pin 50 between the outer peripheral surface of the portion of the spring pin 50 fitted in the main body side cylinder portion 46 and the inner peripheral surface of the main body side cylinder portion 46. A frictional force that acts in a direction that hinders the displacement to the surface is generated.

  Therefore, in the release preventing mechanism 60 having the above-described structure, there is a dimensional error at the time of molding in the case side cylindrical portion 32 or the main body side cylindrical portion 46, or the substrate case due to heat generated by the pachinko machine 10 in operation. Even if the case side tube portion 32 and the main body side tube portion 46 are deformed due to the change in the ambient temperature of the substrate 26, it is possible to advantageously realize a stable fixing state of the substrate case 26 and the back cover member 44. As a result, the assembly state of the substrate case 26 and the back cover member 44 can be advantageously prevented from being released.

  In this state, both ends of the plate-like piece 56 in the longitudinal direction are fitted into the opening holes 64 in a state where the spring pin 50 is inserted across the case side cylinder portion 32 and the main body side cylinder portion 46. Therefore, when the spring pin 50 is to be displaced in the axial direction, that is, in the removal direction which is the direction opposite to the insertion direction, each of both ends in the longitudinal direction of the plate-like piece 56 is inserted into the opening hole 64. The inner peripheral surface 66 can be locked to the surface opposite to the insertion direction of the spring pin 50. Thereby, for example, even if an attempt is made to push back the spring pin 50 in the direction opposite to the insertion direction by opening a hole in the bottom wall portion 47 of the main body side cylindrical portion 46, each of the longitudinal directions of the plate-like pieces 56 is changed. Since the end portion is locked to the inner peripheral surface 66 of the opening hole 64, it is possible to prevent displacement in the direction opposite to the insertion direction of the spring pin 50. As a result, a stable fixing state between the substrate case 26 and the back side cover member 44 can be realized more advantageously, and release of the assembled state of the substrate case 26 and the back side cover member 44 can be prevented more advantageously. It becomes.

  In the present embodiment, the plate-like piece 56 covers the spring pin 50 when the plate-like piece 56 of the assembly pin 54 fixed to the spring pin 50 is viewed from above in the axial direction of the spring pin 50. Therefore, it is possible to advantageously secure an area where a force can be applied when the spring pin 50 is fitted, and as a result, it is possible to improve work efficiency when inserting the spring pin 50. It becomes.

  Furthermore, in the present embodiment, since the insertion shaft 58 is formed so as to protrude from the central portion of the plate-like piece 56, the spring pin 50 is inserted across the main body side cylindrical portion 46 and the case side cylindrical portion 32. It is possible to realize warping of both ends in the longitudinal direction of the plate-like piece 56 in the process.

  Furthermore, in the present embodiment, since the main body side cylindrical portion 46 has a bottomed cylindrical shape with a bottom wall portion 47, unless a hole is made in the bottom wall portion 47 of the main body side cylindrical portion 46, etc. The spring pin 50 is prevented from being pulled out from the main body side cylindrical portion 46 side, and between the spring pin 50 and the main body side cylindrical portion 46 or between the spring pin 50 and the case side cylindrical portion 32. Since the frictional force acts in the direction opposite to the pulling direction of the spring pin 50, it is possible to advantageously prevent the spring pin 50 from being pulled out from the cylindrical portions 32 and 46, and as a result, the substrate. It is possible to further stabilize the fixed state of the case 26 and the back side cover member 44, and it is possible to more advantageously prevent the assembly state of the substrate case 26 and the back side cover member 44 from being released. To become.

  In particular, in this embodiment, since the main body side cylinder portion 46 is provided so as to protrude toward the game board side, it is difficult to make a hole in the bottom wall portion 47 of the main body side cylinder portion 46 itself. This makes it possible to further stabilize the fixed state of the substrate case 26 and the back cover member 44.

  Next, a release preventing mechanism 72 as a second embodiment of the present invention will be described. In the second embodiment and the third embodiment described below, the same reference numerals as those in the first embodiment are used for members and parts having the same structure as in the first embodiment. The detailed description thereof will be omitted.

  FIG. 16 shows a state in which the substrate case 68 employed in the second embodiment is assembled and fixed to the back side cover member 44. The board case 68 employed in this embodiment is different from the board case (26) employed in the first embodiment in the position where the case-side cylinder portion 32 is provided. That is, in the substrate case 68 employed in the present embodiment, the case-side cylindrical portion 32 is integrally formed with the bottom surface on one end side in the longitudinal direction of the substrate case 68. In particular, in the present embodiment, the central axis of the case side cylinder portion 32 extends in the longitudinal direction of the substrate case 68.

  As in the first embodiment, the substrate case 68 having such a structure is rotatable with respect to the back cover member 44 around the rotation shaft 42 provided at the other end in the longitudinal direction. It is assembled.

  Therefore, in the present embodiment, the case side cylindrical portion 32 is positioned in the stepped portion 70 formed in the back side cover member 44 in a state where the substrate case 68 is superimposed on the back side cover member 44. It has become. The main body side cylinder portion 46 is integrally formed at a position corresponding to the case side cylinder portion 32 in a state where the case side cylinder portion 32 is positioned in the stepped portion 70. In particular, in the present embodiment, as described above, the case side tube portion 32 and the main body side tube portion 46 are the same as in the first embodiment in a state where the case side tube portion 32 is positioned in the stepped portion 70. It can be positioned on the central axis.

  As described above, the main body side cylindrical portion 46 and the case side cylindrical portion 32 are positioned on the same central axis, whereby the internal space 48 of the main body side cylindrical portion 46 and the internal space 36 of the case side cylindrical portion 32 are spring-loaded. The pin 50 is in a position that allows insertion.

  As is clear from this, also in the present embodiment, the main body side cylindrical portion 46 and the case side cylindrical portion 32 are positioned on the same central axis in a state where the substrate case 68 is assembled to the back side cover member 44. As a result, the internal space 48 of the main body side cylinder portion 46 and the internal space 36 of the case side cylinder portion 32 are connected. In this embodiment, the direction in which the central axis common to the main body side cylindrical portion 46 and the case side cylindrical portion 32 extends intersects with the release direction for releasing the assembled state of the substrate case 68 with respect to the back side cover member 44. In addition, when the substrate case 68 rotates with respect to the back side cover member 44, it also intersects with the direction in which the tangent line that touches the arc drawn by the case side cylindrical portion 32 extends. In the present embodiment, as described above, the main body side cylindrical portion 46 and the case side cylindrical portion 32 are positioned on the same central axis, and the opening end surface of the main body side cylindrical portion 46 and the case side cylindrical portion 32 are arranged. A clearance is formed between the lower end surface of the lower housing portion 38.

  The spring pin 50 is inserted so as to straddle the case-side cylinder portion 32 and the main-body-side cylinder portion 46 positioned on the same central axis as described above. Therefore, in the present embodiment, the spring pin 50 is fitted and fixed only to the case-side cylinder portion 32 (lower accommodation portion 38).

  In this way, the back-side cover member of the substrate case 68 is obtained by fitting and fixing the spring pin 50 straddling the case-side cylinder portion 32 and the main-body-side cylinder portion 46 to the case-side cylinder portion 32. The rotation about one axis with respect to 44 is prevented by the spring pin 50.

  As is clear from this, also in the present embodiment, the case side tube portion 32 formed integrally with the substrate case 68, the body side tube portion 46 formed integrally with the back side cover member 44, and these The release prevention mechanism 72 is configured including the spring pin 50 inserted across the case side cylinder portion 32 and the main body side cylinder portion 46.

  Therefore, also in the release prevention mechanism 72 of this embodiment, it is possible to obtain the same effect as that of the first embodiment.

  Subsequently, a release preventing mechanism 74 as a third embodiment of the present invention will be described. FIG. 17 shows a state in which the substrate case 76 employed in the present embodiment is assembled and fixed to the back side cover member 44. The substrate case 76 employed in the present embodiment is longer than the substrate case (26) employed in the first embodiment with respect to each of the pair of side wall portions opposed to each other in the width direction. A slide protrusion 78 extending in a substantially constant cross-sectional shape over the entire length in the direction is integrally formed.

  As shown in FIG. 18, the substrate case 76 having such a structure has a pair of slide projections 78.78 along a pair of guide rails 80, 80 provided on the surface of the back cover member 44. By being slid and displaced, the rear cover member 44 can be assembled. In the present embodiment, a stopper 82 is provided on the other end side in the longitudinal direction of the pair of guide rails 80, 80 (on the right side in FIG. 17). Slide displacement is limited.

  In the present embodiment, the main body side cylindrical portion 46 is integrally formed at a position corresponding to the case side cylindrical portion 32 in the back side cover member 44 in a state in which the substrate case 76 is slid and displaced until it contacts the stopper 82. Yes. In particular, in the present embodiment, as described above, the case side cylindrical portion 32 and the main body side cylindrical portion 46 are positioned on the same central axis line in a state where the substrate case 76 is assembled to the back side cover member 44. ing.

  As described above, the main body side cylindrical portion 46 and the case side cylindrical portion 32 are positioned on the same central axis, whereby the internal space 48 of the main body side cylindrical portion 46 and the internal space 36 of the case side cylindrical portion 32 are spring-loaded. The pin 50 is in a position that allows insertion.

  As is apparent from this, also in the present embodiment, the main body side cylindrical portion 46 and the case side cylindrical portion 32 are positioned on the same central axis in a state where the substrate case 76 is assembled to the back side cover member 44. As a result, the internal space 48 of the main body side cylinder portion 46 and the internal space 36 of the case side cylinder portion 32 are connected. Also in this embodiment, the direction in which the central axis common to the main body side cylinder portion 46 and the case side cylinder portion 32 extends intersects with the release direction in which the assembled state of the substrate case 68 with respect to the back side cover member 44 is released. -ing Although not clearly shown in the drawings, also in the present embodiment, as described above, the main body side cylindrical portion 46 and the case side cylindrical portion 32 are positioned on the same central axis as described above. A gap is formed between the opening end surface and the lower end surface of the lower accommodating portion 38 in the case side cylindrical portion 32.

  As described above, the spring pin 50 is inserted so as to straddle the case side cylinder portion 32 and the main body side cylinder portion 46 positioned on the same central axis. Therefore, in the present embodiment, the spring pin 50 is fitted and fixed only to the case-side cylinder portion 32 (lower accommodation portion 38).

  In this way, the spring pin 50 inserted across the case side cylinder part 32 and the main body side cylinder part 46 is fitted and fixed to the case side cylinder part 32, whereby the back side cover member of the substrate case 76 is obtained. The sliding displacement with respect to 44 is prevented by the spring pin 50.

  As is clear from this, also in the present embodiment, the case side cylindrical portion 32 formed integrally with the substrate case 76, the main body side cylindrical portion 46 formed integrally with the back side cover member 44, and these cases The release prevention mechanism 74 is configured including the spring pin 50 inserted across the side cylinder part 32 and the main body side cylinder part 46.

  Therefore, also in the release prevention mechanism 74 of this embodiment, it is possible to obtain the same effect as that of the first embodiment.

  As mentioned above, although several embodiment of this invention has been explained in full detail, these are illustrations to the last, Comprising: This invention is not limited at all by the specific description in this embodiment. .

  For example, the assembly pin 54 in the first to third embodiments is not necessarily required. Further, the cornering of the outer edge of the spring pin 50 in the first to third embodiments is not necessarily required.

  Further, the portion of the spring pin that is divided in the circumferential direction does not need to meander as in the first to third embodiments, and may extend straight. Furthermore, the spring pin may have a structure in which a plate material is wound more than once.

  Furthermore, an insertion member made of a material having a hardness lower than that of the spring pin forming material may be inserted into and fixed to the cylindrical spring pin divided in the circumferential direction. As a result, it is possible to advantageously ensure the separation distance of the portion divided in the circumferential direction in the spring pin, and as a result, it is possible to advantageously obtain the spring action in the direction perpendicular to the axis of the spring pin. For example, hard rubber, silicone, ceramics, urethane, or the like is employed as a material for forming the insertion member.

  In the first embodiment, the spring pin 50 may be fitted and fixed only to the main body side tube portion 46. Furthermore, in the second and third embodiments, the spring pin 50 may be fitted and fixed only to the main body side cylindrical portion 46, or the main body side cylindrical portion 46 and the case side cylindrical portion. 32 may be fitted and fixed to both.

  In the first to third embodiments, the release preventing mechanism 60, 72, 74 may also serve as the lock mechanism for the substrate cases 26, 68, 76.

  In addition, in the above embodiment, a specific example of applying the present invention has been shown for the case of preventing the release of the assembled state of the board case with respect to the gaming machine body. However, the present invention is, for example, a back cover. When preventing the assembly state between the member 44 and the game board or when preventing the assembly state between the back cover covering the various parts on the back side of the gaming machine and the middle frame 14 although not shown. Furthermore, it is of course possible to apply to the case where the release of the assembled state of the mechanism plate to which the prize ball payout device, the ball tank or the like is attached and the middle frame 14 is prevented.

  In addition, although not enumerated one by one, the present invention can be implemented in a mode with various changes, modifications, improvements, and the like based on the knowledge of those skilled in the art. It goes without saying that all are included in the scope of the present invention without departing from the spirit of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The front view of the pachinko machine with which the cancellation | release prevention mechanism as 1st embodiment of this invention was employ | adopted. The back view of the pachinko machine. The top view which shows the board | substrate case employ | adopted as the pachinko machine. Sectional drawing of the IV-IV direction in FIG. Sectional drawing of the VV direction in FIG. The top view which shows the state by which the substrate case was fixed to the back side cover member. It is a cross section of the VII-VII direction in FIG. 6, Comprising: The expanded sectional view for demonstrating the positional relationship of a case side cylinder part and a main body side cylinder part. The front view of the spring pin employ | adopted by 1st embodiment. FIG. 9 is a top view of the spring pin shown in FIG. 8. The front view of the assembly | attachment pin fixed to the spring pin shown by FIG. The right view of the assembly | attachment pin shown by FIG. The front view which shows the state by which the assembly | attachment pin was fixed to the spring pin of FIG. Sectional drawing which shows the state by which the spring pin of FIG. 12 was inserted by the lower side accommodating part. Sectional drawing which shows the state by which the spring pin of FIG. 12 was fitted by the lower side accommodating part and the main body side cylinder part. FIG. 14 is a view of the fitting state of the connecting pin shown in FIG. Sectional drawing for demonstrating the cancellation | release prevention mechanism as 2nd embodiment of this invention. The top view for demonstrating the cancellation | release prevention mechanism as 3rd embodiment of this invention. FIG. 18 is a cross-sectional view in the XVIII-XVIII direction in FIG.

Explanation of symbols

26: Substrate case, 32: Case side cylinder part, 36: Center hole, 44: Back side cover member, 46: Main body side cylinder part, 48: Center hole, 50: Spring pin, 60: Release prevention mechanism

Claims (2)

In the part assembly state release prevention mechanism that prevents the release of the assembly state of the gaming machine parts to the gaming machine body,
A part-side cylinder part integrally formed with the gaming machine part and a body-side cylinder part integrally formed with the gaming machine main body are connected to each other in the assembled state. The spring pin is inserted so as to straddle the internal space of the component-side cylinder portion and the internal space of the main-body-side cylinder portion, and is fitted into at least one of the component-side cylinder portion and the main-body-side cylinder portion. In this way, the gaming machine parts are fixed to the gaming machine body so that the gaming machine parts and the gaming machine body cannot be released from the assembled state. Blocking mechanism. An insertion protrusion protruding from the central portion of the plate-like piece is inserted and fixed at the end opposite to the preceding end when the spring pin is inserted, and the gaming machine component and the gaming machine main body are fixed. The plate-like piece is configured to be engaged with either the component-side cylinder portion or the main-body-side cylinder portion on the opposite side to the insertion direction of the spring pin in a state where The part assembly state release prevention mechanism.

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