JP4952889B2 - Assembly state release prevention mechanism - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an attached state release blocking mechanism in a new structure capable of advantageously blocking the release of the attached state of a first element and a second element in an attached structure comprising the first element and the second element to be attached to it. <P>SOLUTION: Under the state that the second element 14 is attached to the first element 12, a spring pin 60 to be inserted and arranged over a second cylinder part 28 and a first cylinder part 38 positioned so as to connect respective inner spaces 27 and 39 in a direction crossing the release direction of the first element 12 and the second element 14 is fitted to the second cylinder part 28, and a fitting projection 33 provided on the second cylinder part 28 is fitted to the spring pin 60. <P>COPYRIGHT: (C)2008,JPO&amp;INPIT

Description

  In the assembly structure configured to include the first component member and the second component member assembled thereto, the assembled state of the first component member and the second component member is released. It is related with the assembly state cancellation | release prevention mechanism which blocks | prevents.

  In general, various consumer devices are not composed of only a single component, and in most cases, are constructed by assembling a plurality of components.

  Therefore, as described above, an apparatus constructed by assembling a plurality of components (hereinafter referred to as an assembly structure) has an assembly structure from the viewpoint of ensuring safety and preventing unauthorized modification, for example. A mechanism that prevents the assembled state of the first component member and the second component member assembled to the first component member among the plurality of component members constituting the object from being released (hereinafter referred to as an assembled state release prevention mechanism). There is something to prepare. Specifically, for example, in the field of gaming machines such as slot machines and pachinko machines, there is an unsealing prevention mechanism that prevents unsealing of the board case that houses the main control board that controls the overall operation of the gaming machine. is there.

  By the way, as an opening prevention mechanism as described above, for example, as described in Patent Document 1, a cylinder is provided for each of a case main body (first constituent member) and a lid member (second constituent member) assembled thereto. By providing a member and fitting a solid pin to these cylindrical members, the relative displacement (in the direction of opening the substrate case) of the case main body (first constituent member) and the lid member (second constituent member) Conventionally, a lid opening prevention mechanism for preventing displacement) is known.

  However, in the lid-opening prevention mechanism as described in Patent Document 1, each component member (case main body and the case body) that constitutes the substrate case can be easily confirmed from the outside for an illegal act on the control substrate accommodated in the substrate case. In general, the lid member is formed of a transparent synthetic resin material. If it does so, the cylindrical member provided in each of a case main body and a cover member will be integrally formed with a case main body and a cover member in most cases. As a result, a dimensional error may occur in these cylindrical members during molding.

  In addition, depending on the ambient temperature of the assembly structure (substrate case), the cross section of the cylindrical member provided on each of the case main body and the lid member may be deformed.

  Therefore, in the lid opening prevention mechanism as described in Patent Document 1, it is difficult to fit the solid pin into both cylindrical members, or the cylindrical member is damaged by forcibly fitting the solid pin. There is a possibility that the solid pin can be fitted into both cylindrical members, but the solid pin can be easily removed, or the solid pin can be fitted into at least one of both cylindrical members. Even if it is fixedly attached, the solid pin may be easily removed due to a change in ambient temperature, and it may be difficult to fully exhibit the function as a lid opening prevention mechanism.

JP 2005-342193 A

  Here, the present invention has been made against the background as described above, and the solution is to include the first component member and the second component member assembled thereto. To provide an assembly state release prevention mechanism having a novel structure that can advantageously prevent the assembly state of the first component member and the second component member from being released in the assembly structure. is there.

  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.

This invention cancels | releases the assembly | attachment state of the 1st component member and the 2nd component member in the assembly structure comprised including the 1st component member and the 2nd component member assembled | attached with respect to it. An assembly state release blocking mechanism for blocking, wherein the first cylindrical portion integrally formed with one of the first component member and the second component member, the first component member, and the second component member And a second cylindrical portion integrally formed with a fitting projection toward the first cylindrical portion at the center portion in the internal space. Under the assembled state of the second component member of the member, the respective internal spaces are connected in a direction in which the first cylindrical portion and the second cylindrical portion intersect the release direction for releasing the assembled state. It is characterized in that it can be positioned so as to be in a closed state. Further, in the assembled state release prevention mechanism of the present invention, the spring pin disposed across the internal space of the first cylindrical portion and the internal space of the second cylindrical portion is provided in the internal space of the second cylindrical portion. It has an outer dimension that is larger than the dimension in the direction perpendicular to the axis, and the spring pin is inserted into the first cylinder part through the opening opposite to the second cylinder part, and within the internal space of the second cylinder part The outer periphery of the center hole of the spring pin is fitted to a fitting projection having a cross-sectional shape in the direction perpendicular to the axis substantially corresponding to the cross-sectional shape in the direction perpendicular to the axis , and is pressed against the inner peripheral surface of the second cylindrical portion It is also characterized in that it is fixed to the second cylindrical portion so that the assembled state of the first component member and the second component member cannot be released.

  In the assembly state release prevention mechanism having the structure according to the present invention, the assembly is performed under the assembly state in which the first component member and the second component member constituting the assembly structure are assembled. A spring pin inserted and disposed across the first and second cylindrical portions positioned so as to be connected to each other in a direction intersecting the release direction for releasing the state. In the internal space of the second cylindrical part, the first cylindrical member and the second structural part are fixed to the second cylindrical part by being externally fitted to the fitting protrusion and being pressed against the second cylindrical part. The assembly state with the constituent members cannot be released.

  Accordingly, in the present invention, the spring pin is externally fitted to the fitting projection in a state where the spring pin is inserted and disposed across the first cylinder portion and the second cylinder portion, and the second cylinder Since it is in pressure contact with the inner peripheral surface of the part, an external force in the direction perpendicular to the axis is exerted on the spring pin, and the cross section in the direction perpendicular to the axis of the spring pin is deformed.

  Specifically, for example, when the outer diameter dimension of the spring pin is larger than the dimension in the direction perpendicular to the axial direction of the internal space in the second cylindrical portion, the external force in the direction in which the spring pin is tightened is springed by the second cylindrical portion. A force that the spring pin tries to return to its original shape, that is, a restoring force based on a spring action in a direction perpendicular to the axis of the spring pin itself is exerted on the second cylindrical portion. Become. Further, when an external force in the direction of tightening the spring pin is exerted on the spring pin, the spring pin is pressed against the fitting protrusion. As a result, excessive deformation due to being fitted into the second cylindrical portion of the spring pin is prevented by the fitting protrusion. As a result, when the outer diameter of the spring pin is larger than the dimension of the inner space in the second cylindrical portion in the direction perpendicular to the axis, the fitting protrusion assists the deformation to return to the original shape of the spring pin. Will play a role.

  On the other hand, when the dimension of the internal space in the second cylindrical portion in the direction perpendicular to the axis is larger than the outer diameter dimension of the spring pin, the external force in the direction of expanding the spring pin is exerted on the spring pin by the fitting protrusion. Thus, a restoring force based on the spring action in the direction perpendicular to the axis of the spring pin itself is exerted on the fitting protrusion. Further, when the external force in the direction of expanding the spring pin is exerted on the spring pin, the spring pin is pressed against the second cylindrical portion. Thereby, the excessive deformation | transformation by having fitted the insertion protrusion on the spring pin will be blocked | prevented by the 2nd cylinder part. As a result, when the dimension in the direction perpendicular to the axis of the internal space in the second cylindrical part is larger than the outer diameter dimension of the spring pin, the second cylindrical part is deformed to return to the original shape of the spring pin. It will serve to assist.

  Therefore, it is possible to advantageously secure a frictional force that acts in a direction that prevents the spring pin from being displaced in the direction in which the spring pin is pulled out. The problem of deformation of the second cylindrical portion and the fitting protrusion due to the change in the ambient temperature of the attached structure is avoided, and a favorable assembled state of the first component member and the second component member is advantageously obtained It can be realized. As a result, it is possible to advantageously prevent the assembled state of the first component member and the second component member constituting the assembly structure from being released.

  In the present invention, since the spring pin is externally fitted to the fitting protrusion in the internal space of the second cylindrical portion located on the back side in the insertion direction of the spring pin, The guide action in the axial direction by the inner peripheral surface of the second cylindrical portion is exerted on the spring pin. As a result, it is possible to efficiently perform the work of externally fitting the spring pin to the fitting protrusion.

  In the present invention, the assembly structure may be composed of only the first component member and the second component member, or in addition to the first component member and the second component member, A member may be provided. In addition, the material for forming the first component member and the second component member is not particularly limited, but from the viewpoint of (1) light weight and (2) excellent workability. A synthetic resin material is preferably employed. In particular, when a transparent synthetic resin material such as polycarbonate (PC) is employed, for example, the accommodation space formed by assembling the first component member and the second component member can be viewed from the outside. Easy to do.

  In the present invention, the first cylinder part and the second cylinder part may each be one, or may be two or more.

  Furthermore, in the present invention, “the state in which the internal spaces of the first cylinder part and the second cylinder part are connected” means that the spring pin is inserted across the first cylinder part and the second cylinder part. It means that it can be placed. In that case, the 1st cylinder part and the 2nd cylinder part may have overlapped, and may be made to position apart with an appropriate clearance gap.

  Furthermore, in the present invention, the cross-sectional shape in the direction perpendicular to the axis in the internal space of the first cylinder part or the second cylinder part is not particularly limited, and for example, a circle, an ellipse, a polygon, These may have various cross-sectional shapes such as a distorted shape, but it is desirable that the second cylindrical portion substantially corresponds to the outer shape of the cross section in the direction perpendicular to the axis of the spring pin. Thereby, it is possible to advantageously ensure a contact area between the outer peripheral surface of the spring pin and the inner peripheral surface of the second cylindrical portion. 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 second cylindrical portion, and to advantageously prevent the axial displacement of the spring pin. It becomes possible.

  Furthermore, in the present invention, the size and shape of the cross section of the first cylindrical portion and the second cylindrical portion in the direction perpendicular to the axis do not need to be constant in the axial direction. The cross-sectional size and shape in the direction perpendicular to the axis may be different on the other end side.

  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 2nd cylinder part in the state in which the spring pin was press-contacted to the internal peripheral surface of the 2nd cylinder part is made equal in the circumferential direction. As a result, with the spring pin fixed to the second cylindrical portion, the outer peripheral surface of the spring pin can be brought into close contact with the inner peripheral surface of the second cylindrical portion over the entire circumference. It is possible to more advantageously prevent the displacement in the direction of slipping out.

  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 cross-sectional shape of the fitting protrusion in the direction perpendicular to the axis is not particularly limited, and various cross-sections such as a circular shape, an elliptical shape, a polygonal shape, and a distorted shape thereof can be used. Although a shape can be adopted, it is desirable that it substantially corresponds to a cross section in a direction perpendicular to the axis in the center hole of the spring pin. Thereby, it is possible to advantageously secure a contact area between the inner peripheral surface of the spring pin and the outer peripheral surface of the fitting protrusion. As a result, it is possible to advantageously ensure the frictional force generated between the inner peripheral surface of the spring pin and the outer peripheral surface of the fitting protrusion, and to prevent the axial displacement of the spring pin. Become.

  Furthermore, the protrusion height of the fitting protrusion is not particularly limited as long as the internal space of each of the first cylindrical portion and the second cylindrical portion can be achieved. For example, it may protrude from the opening end of the second tube portion toward the first tube portion or may not protrude.

  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 that precedes the insertion in the spring pin. It is desirable that the plate-like piece is locked to the side opposite to the insertion direction of the spring pin with respect to the first cylinder part in a state where is fixed to the second cylinder part. Thereby, the displacement to the direction opposite to the insertion direction of a spring pin will be blocked | prevented because a plate-shaped piece latches with respect to a 1st cylinder part. As a result, the assembled state of the first component member and the second component member can be further stabilized, and the displacement of the second component member in the releasing direction with respect to the first component member is further advantageous. Can be prevented.

Therefore, the state of locking of the plate-like piece with respect to the first cylindrical portion suitably employed in the present invention is that the plate-like piece is locked to the step formed on the inner peripheral surface of the first cylindrical portion. The plate-shaped piece may be fitted in an opening hole formed in the first cylinder portion in the direction perpendicular to the axis, and the plate-shaped piece is formed on the inner peripheral surface of the opening hole. It may be realized by being locked.

  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 gaming machine substrate case 10 as an assembly structure that employs a lock mechanism 11 as an assembly state release prevention mechanism according to an embodiment of the present invention. The gaming machine substrate case 10 has a structure in which a lid member 14 as a second constituent member is assembled to a case main body 12 as a first constituent member, and the case main body 12 and the lid member 14 are assembled. The release of the assembled state is blocked by the lock mechanism 11, and the control board 16 is accommodated in the lock mechanism 11, and is attached to an appropriate position on the back side of the gaming machine (not shown).

  More specifically, the case body 12 is formed of a transparent hard synthetic resin material such as polycarbonate (PC), and as shown in FIGS. 2 to 4, the outer peripheral edge portion of the bottom plate 18 as a whole. A peripheral wall 20 extending along the entire circumference is provided upright, and an opening 22 that opens upward is formed.

  Therefore, in the present embodiment, the pair of longitudinally facing walls 24 and 24 that are opposed to each other in the longitudinal direction of the case main body 12 (left and right direction in FIG. 2) are opened upward and are longitudinally A guide groove 26 extending in the longitudinal direction of the opposing wall portion 24 (the width direction of the case main body 12, that is, the vertical direction in FIG. 2) is formed.

  In addition, a plurality of (eight in the present embodiment) second cylindrical portions 28 are integrally formed on the side wall portion of the case main body 12 in the width direction (downward in FIG. 2). . In particular, in the present embodiment, these eight main body side cylindrical portions 28 are arranged in groups of four on one side and the other side in the longitudinal direction across the center in the longitudinal direction of the case main body 12 to form one group. It is positioned like this.

  Therefore, in the present embodiment, each main body side cylinder portion 28 has a bottomed cylindrical shape, and its peripheral wall portion is attached to one side wall portion of the case main body 12 in the width direction by the attachment piece 30. Yes. Thereby, each main body side cylinder part 28 is integrally formed with respect to the surrounding wall 20 as an outer peripheral edge part of the case main body 12.

  In the present embodiment, the opening direction of each main body side cylinder portion 28 (direction in which the central axis extends) is substantially the same as the opening direction of the opening portion 22 of the case main body 12 (direction substantially orthogonal to the bottom plate 18). Parallel.

  Furthermore, in the present embodiment, the fitting protrusion 33 that projects in the opening direction (upward in the axial direction) is integrally formed on the bottom wall 31 of each main body side cylinder portion 28 on the central axis of the main body side cylinder portion 28. Has been.

  In the present embodiment, the accommodating body 29 is positioned above each of the main body side cylinder portions 28 having such a structure. The container 29 has a U-shaped cross-section with a U-shaped section extending in the opening direction (axial direction) of the main body-side cylinder portion 28, and an opening direction (axial direction) of the main-body-side cylinder section 28 with a U-shaped cross section. The upper housing portion 34 and the lower housing portion 32 are communicated with each other by a notch formed in the bottom wall of the upper housing portion 34. Yes. In the present embodiment, the two adjacent upper housing portions 34, 34 share a side wall portion (side wall portion extending in the width direction of the case body 12) located in the adjacent direction.

  Therefore, in the present embodiment, the main body side cylinder portion 28 is positioned inside the lower housing portion 32 in the projection in the opening direction (axial direction) of the main body side cylinder portion 28 (FIGS. 2 to 4). reference).

  The container 29 having such a structure has a pair of side wall parts (side wall parts extending in the width direction of the case main body 12 in the upper stage containing part 34) opposed to each other in a direction orthogonal to the axial direction of the main body side cylinder part 28. And a side wall portion extending in the width direction of the case body 12 in the lower housing portion 32) is integrally formed with respect to one wall portion in the width direction of the case body 12. That is, each container 29 is formed integrally with the peripheral wall 20 of the case body 12.

  The lid member 14 to be assembled to the case body 12 having such a structure is formed of a transparent hard synthetic resin material such as polycarbonate (PC) like the case body 12, and is shown in FIGS. As shown in the figure, as a whole, a peripheral wall 37 extending along the outer peripheral edge of the top plate 36 is erected, and an opening that opens downward is formed. In addition, the top plate 36 of the present embodiment is provided with an inclined portion in an intermediate portion in the width direction (vertical direction in FIG. 5), whereby the distance from the top plate 36 to the opening end at both ends in the width direction. Are different.

  In addition, a plurality of (eight in the present embodiment) first-side cylindrical portions 38 are integrally formed on one side wall portion of the lid member 14 in the width direction. In particular, in the present embodiment, these eight lid-side cylinder portions 38 are grouped four on one side and the other side in the longitudinal direction across the center in the longitudinal direction of the lid member 14 to form one group. It is positioned like this.

  Therefore, in this embodiment, each lid-side cylinder portion 38 is a cylinder that extends straight with a substantially constant cross section with respect to the bottom wall of the upper housing portion 40 having a frame shape or a cylindrical shape opening with a rectangular cross section. The lower housing portion 42 is shaped so as to project downward in the axial direction on the same central axis. The upper housing portion 40 and the lower housing portion 42 are formed on the bottom wall of the upper housing portion 40. They are communicated with each other through the formed communication holes.

  In particular, in this embodiment, the opening direction (direction in which the central axis extends) of each lid side cylinder portion 38, that is, the opening direction (direction in which the central axis extends) of the upper housing portion 40 and the lower housing portion 42 is the lid member. 14 opening directions (directions substantially perpendicular to the top plate 36).

  In the lid-side cylinder portion 38 having such a structure, the upper housing portion 40 is attached to one side wall portion in the width direction of the lid member 14 by a pair of attachment pieces 44 and 44. Thereby, each lid side cylinder part 38 is integrally formed with respect to the peripheral wall 37 as an outer peripheral edge part of the lid member 14.

  Next, a method for assembling the lid member 14 having the above-described structure to the case body 12 will be described. First, a pair of longitudinally facing wall portions 46, 46 that are opposed to each other in the longitudinal direction of the lid member 14 (the left-right direction in FIG. 5) are a pair of guide grooves 26, 26 formed at both longitudinal ends of the case body 12. Fit in. At that time, as shown in FIG. 8, the locking pieces 48, 48 provided in the respective guide grooves 26 in the case body 12 are engaged with the longitudinally facing wall portions 46 in the lid member 14. It is designed to be accommodated in the stop cutouts 50, 50. Note that the locking pieces 48 of the present embodiment are provided integrally with the side wall portion of each guide groove 26, respectively.

  Therefore, in the present embodiment, as described above, the pair of longitudinally facing walls 46 and 46 in the lid member 14 are fitted in the pair of guide grooves 26 and 26 in the case body 12, and The top plate 36 of the bottom plate 18 and the lid member 14 is substantially parallel except for the inclined portion of the top plate 36.

  Although not clearly shown in the drawings, in the present embodiment, as described above, the longitudinally opposed walls 46 and 46 of the lid member 14 are fitted into the guide grooves 26 and 26 provided in the case body 12. Before, the control board 16 is screwed to the lid member 14 in a state where the connector 52 mounted thereon protrudes outside from a window 54 formed in the lid member 14.

  The control board 16 is a control board to be inspected by a predetermined inspection organization (specifically, for example, a main control board that controls the overall operation of the gaming machine or a control signal from the main control board). The payout control board for controlling the payout of the award medium based on the above.

  The direction in which the locking pieces 48 are locked to the locking notches 50, 50 from the state as described above (the direction in which the opening 22 of the case body 12 is covered with the lid member 14, that is, the direction in which the lid is closed). As shown in FIG. 9, the lid member 14 is slidably displaced with respect to the case main body 12 (in this embodiment, the slidable displacement is to move the top plate 36 in parallel with the bottom plate 18). The locking pieces 48 and 48 are locked to the locking notches 50 and 50. As a result, the lid member 14 is assembled to the case body 12, and the opening 22 of the case body 12 is covered with the lid member 14 as shown in FIG. As a result, the control board 16 screwed to the lid member 14 is put into the case body 12 through the opening 22.

  In the present embodiment, as described above, in the state where the opening 22 of the case body 12 is covered with the lid member 14, as shown in FIG. The formed protrusion 56 is adapted to be fitted into an insertion hole 58 formed in the other side wall portion in the width direction of the lid member 14.

  Further, as described above, by sliding and displacing the lid member 14 with respect to the case main body 12, as shown in FIG. 10, the lower accommodating portion 42 in the lid-side cylindrical portion 38 is formed on the main body-side cylindrical portion 28. The upper housing portion 40 in the lid side cylinder portion 38 is positioned in the upper housing portion 34 of the housing body 29 while being positioned in the lower housing portion 32 of the housing body 29 positioned above. .

  Thereby, the lid side cylinder part 38 and the main body side cylinder part 28 are positioned on the same central axis in a state where the lid member 14 is assembled to the case main body 12. That is, in this embodiment, the lid side cylinder part 38 is provided at a position corresponding to the main body side cylinder part 28 in the lid member 14. Then, as described above, the lid side cylinder part 38 and the main body side cylinder part 28 are positioned on the same central axis, so that the internal space 39 of the lid side cylinder part 38 and the internal space 27 of the main body side cylinder part 28 are described later. It will be in the position which permits insertion of the spring pin 60 to perform. As is clear from this, in the present embodiment, the lid side cylinder portion 38 and the main body side cylinder portion 28 are positioned on the same central axis in a state where the lid member 14 is assembled to the case main body 12. Thus, the internal space 39 of the lid side cylinder part 38 and the internal space 27 of the main body side cylinder part 28 are connected. In the present embodiment, as described above, with the lid side cylinder portion 38 and the main body side cylinder portion 28 positioned on the same central axis, the lower end surface of the lower storage portion 42 in the lid side cylinder portion 38 A gap is formed between the upper surface of the main body side cylinder portion 28.

  In the present embodiment, the lid member 14 is slid relative to the case body 12 so that the top plate 36 moves in parallel with the bottom plate 18, so that the lid member 14 moves relative to the case body 12. Since the lid member 14 is assembled to the case main body 12, the direction in which the lid-side cylindrical portion 38 and the main-body-side cylindrical portion 28 are arranged (the lid-side cylindrical portion 38 and the main body are arranged). The direction in which the central axis common to the side tube portion 28 extends) is substantially orthogonal to the sliding direction of the lid member 14 relative to the case body 12.

  As described above, the spring pin 60 is inserted into the main body side cylinder portion 28 and the lid side cylinder portion 38 that are positioned on the same central axis. In this case, the spring pin 60 of the present embodiment is formed of steel, spring steel, or the like, and as shown in FIGS. 11 and 12, extends in a meandering manner while meandering in the axial direction in a part of the circumferential direction. 62 is formed in a cylindrical shape. Note that such a spring pin 60 is advantageously formed by, for example, rounding a plate material in which both ends in the longitudinal direction are formed in a sawtooth shape using an appropriate machine or tool. Further, the spring pin 60 of the present embodiment is rounded over the entire circumference with respect to the outer corners at both ends in the axial direction. Thereby, the insertion of the spring pin 60 into the main body side cylinder portion 28 and the lid side cylinder portion 38 is advantageously performed from any side in the axial direction.

  In the present embodiment, the assembly pin 64 is attached to such a spring pin 60. This assembly pin 64 is formed of a synthetic resin material such as ABS, and as shown in FIGS. 13 and 14, the thickness is from the central portion of the plate-like piece 66 that is a rectangular flat plate as a whole. An insertion shaft 68 as an insertion protrusion protruding on one side in the direction is integrally formed. In the present embodiment, chamfering is applied to the lower corners at both ends in the longitudinal direction of the plate-like piece 66 over the entire length in the width direction of the plate-like piece 66. Thereby, it becomes possible to move advantageously from the upper side opening in the upper side accommodating part 40 of the plate-shaped piece 66 mentioned later to a bottom wall.

  As shown in FIG. 15, the assembly pin 64 having such a structure is inserted into and fixed to the spring pin 60 by inserting an insertion shaft 68 from one axial end of the spring pin 60. It is assembled against. As is clear from this, in the present embodiment, one end of the spring pin 60 in the axial direction is the end opposite to the preceding end.

  Although not explicitly shown in the drawings, in this embodiment, the assembly pin 64 is assembled to the spring pin 60 in this manner in the axial direction above the spring pin 60 (the assembly pin 64 is When viewed from the assembled side), the spring pin 60 is covered by the plate-like piece 66 of the assembly pin 64.

  As described above, the spring pin 60 to which the assembly pin 64 is assembled is, as shown in FIG. 16, from the other end side in the axial direction to which the assembly pin 64 is not attached to the lid side cylinder portion. 38 to be inserted. As is clear from this, in the present embodiment, the other end portion in the axial direction of the spring pin 60 is the leading end portion.

  Accordingly, in the present embodiment, as described above, the spring pin 60 is inserted into the lid-side cylinder portion 38, so that the portion of the spring pin 60 that is fitted in the lower housing portion 42 is compared with the spring pin 60. The force which tightens 60 will act. As a result, the force (restoring force) that the spring pin 60 tries to return to the original shape acts on the lower housing portion 42.

  Then, when the restoring force by the spring pin 60 as described above acts on the lower housing portion 42, the outer peripheral surface of the portion of the spring pin 60 that is fitted into the lower housing portion 42 is inside the lower housing portion 42. It will be pressed against the peripheral surface. As a result, the spring pin 60 acts in a direction that prevents axial displacement of the spring pin 60 between the outer peripheral surface of the portion fitted in the lower housing portion 42 and the inner peripheral surface of the lower housing portion 42. It is possible to generate a frictional force.

  Further, as described above, when the spring pin 60 is further fitted against the frictional force from the state in which the spring pin 60 is fitted in the lower housing portion 42, as shown in FIG. 60 is inserted and disposed across the lid side cylinder part 38 and the main body side cylinder part 28.

  Therefore, as described above, the spring pin 60 is also fitted into the main body side cylinder portion 28, whereby the force of tightening the spring pin 60 against the portion of the spring pin 60 fitted into the main body side cylinder portion 28. Will act. As a result, a force (restoring force) that the spring pin 60 tries to return to the original shape acts on the main body side cylinder portion 28. As a result, the spring pin 60 is prevented from being displaced in the axial direction between the outer peripheral surface of the portion of the spring pin 60 fitted into the main body side cylindrical portion 28 and the inner peripheral surface of the main body side cylindrical portion 28. It is possible to generate an acting frictional force.

  Further, as described above, with the spring pin 60 fitted into the main body side cylinder portion 28, the fitting protrusion 33 provided on the main body side cylinder portion 28 is fitted into the other axial end side of the spring pin 60. ing. Thereby, excessive deformation of the spring pin 60 is prevented by the fitting protrusion 33. That is, the deformation of the spring pin 60 to return to the original shape is assisted by the fitting protrusion 33.

  As described above, the outer peripheral surface of the portion of the spring pin 60 that is fitted in the main body side cylinder portion 28 by fitting the fitting protrusion 33 into the other end portion in the axial direction of the spring pin 60, The outer peripheral surface of the portion where the insertion protrusion 33 is inserted is pressed against the inner peripheral surface of the main body side cylinder portion 28, and the portion of the spring pin 60 that is inserted into the main body side cylinder portion 28. It becomes possible to further increase the frictional force generated between the outer peripheral surface, in particular, the outer peripheral surface of the portion into which the insertion protrusion 33 is inserted and the inner peripheral surface of the main body side cylinder portion 28.

  In addition, as described above, the spring pin 60 is externally fitted to the fitting projection 33, so that the axial direction of the spring pin 60 is also between the inner circumferential surface of the spring pin 60 and the outer circumferential surface of the fitting projection 33. A frictional force is generated in a direction that hinders the displacement to.

  As is clear from this, in the present embodiment, the spring pin 60 is inserted and arranged across the lid side cylinder portion 38 and the main body side cylinder portion 28, and the spring pin 60 is in the lid side cylinder portion 38. And the main body side cylinder portion 28 are fitted and fixed, and the fitting projection 33 is fitted and fixed to the other axial end of the spring pin 60. As a result, sliding displacement of the lid member 14 with respect to the case main body 12 in the lid opening direction (release direction) is prevented.

  That is, in the present embodiment, the main body side cylindrical portion 28 integrally formed with the case main body 12, the lid side cylindrical portion 38 integrally formed with the lid member 14, and the main body side cylindrical portion 28 and the lid side. The lock mechanism 11 is configured to include a spring pin 60 that is inserted and disposed across the cylinder portion 38 and a fitting protrusion 33 that protrudes from the bottom wall 31 of the main body side cylinder portion 28.

  Further, in the present embodiment, as described above, in the insertion arrangement state in which the spring pin 60 is inserted and arranged across the lid side cylinder portion 38 and the main body side cylinder portion 28, one end portion in the axial direction of the spring pin 60 is The other end portion in the axial direction of the spring pin 60 is positioned in the main body side cylinder portion 28 while being positioned in the lid side cylinder portion 38.

  Although not clearly shown in the drawings, in the present embodiment, the main body side cylinder portion 28 and the lid side cylinder portion 38 that are located on the same central axis and constitute one group by collecting four groups. As shown in FIG. 17, only in any one of the combinations, the spring pin 60 is inserted and disposed across the main body side cylinder part 28 and the lid side cylinder part 38, while the others In this combination, as shown in FIG. 16, the spring pin 60 is fitted only in the lid side cylinder portion 38.

  Further, in this embodiment, when the spring pin 60 is further fitted from the state shown in FIG. 16, both longitudinal ends of the plate-like pieces 66 in the assembly pin 64 fixed to the spring pin 60 are accommodated in the upper side. It is made to slide with respect to a pair of opposing wall parts 70 and 70 which are made to oppose in the longitudinal direction in the part 40 (left-right direction in FIG. 7 and FIG. 16).

  Therefore, in the present embodiment, the distance between the opposed surfaces of the pair of opposed wall portions 70 is gradually shortened from the upper opening of the upper accommodating portion 40 toward the bottom wall. As a result, the longitudinal ends of the plate-like piece 66 of the assembly pin 64 fixed to the spring pin 60 gradually warp toward the upper opening side of the upper accommodating portion 40 as it goes to the bottom wall side of the upper accommodating portion 40. It is supposed to be.

  Then, when the plate-like piece 66 reaches the bottom wall of the upper housing part 40, both end portions in the longitudinal direction of the plate-like piece 66 return from the state warped to the upper opening side of the upper housing part 40 to the original state. Into the opening 72 formed in the vicinity of the bottom wall of each opposing wall 70. As a result, both end portions in the longitudinal direction of the plate-like piece 66 are formed on the inner peripheral surface 74 of the opening hole 72 formed in each opposing wall portion 70 (particularly, on the side opposite to the insertion direction of the spring pin 60). By being locked to the opening-side surface, the assembly pin 64 is displaced to the upper opening side of the upper housing portion 40, and further, the spring pin 60 is displaced upward in the axial direction (insertion in the removal direction). Displacement in the direction opposite to the direction) is prevented.

  In the present embodiment, the state shown in FIG. 16, that is, the spring pin 60 is fitted into the lid side cylinder portion 38, and the upper surface of the plate-like piece 66 is substantially the same as the upper end surface of the lid side cylinder portion 38. In the state of being positioned at the height, as shown in FIG. 18, a gap is formed between both ends in the width direction of the plate-like piece 66 and the upper accommodating portion 40.

  In particular, in the present embodiment, although not necessarily clear on the drawing, the plate-like piece 66 is in a state where the upper surface of the plate-like piece 66 is positioned at substantially the same height as the upper end surface of the lid-side cylinder portion 38 (upper accommodation portion 40). A gap is formed between the both ends in the width direction of the plate-like piece 66 and the upper housing portion 40 until both ends in the longitudinal direction of the piece 66 enter the opening holes 72, 72. It has become. Thus, only the both longitudinal ends of the plate-like piece 66 are on the upper side of the upper accommodating portion 40 until the spring pin 60 is inserted and arranged across the lid side cylindrical portion 38 and the main body side cylindrical portion 28. It warps to the opening side. As a result, the resistance from the state in which the spring pin 60 is fitted into the lid side cylinder part 38 to the state in which the spring pin 60 is inserted and disposed across the lid side cylinder part 38 and the main body side cylinder part 28 is reduced. It becomes possible to do.

  In the lock mechanism 11 employed in the gaming machine substrate case 10 having such a structure, the sliding displacement of the lid member 14 with respect to the case body 12 in a state where the lid member 14 is assembled to the case body 12. A spring pin 60 inserted and arranged straddling the lower housing part 42 and the main body side cylinder part 28 positioned on a central axis extending in a direction substantially orthogonal to the direction is fitted and fixed to the main body side cylinder part 28. Therefore, the sliding displacement of the lid member 14 with respect to the case body 12 in the opening direction (release direction) is prevented, and as a result, the assembly state of the case body 12 and the lid member 14 is prevented from being released. It has become so.

  Therefore, the spring pin 60 has a cylindrical shape in which a cut 62 is formed over the entire length in the axial direction in a part of the circumferential direction, and generates a spring action in a direction perpendicular to the axis. The reaction force of the force that tightens the spring pin 60 exerted by the main body side tube portion 28 is exerted on the main body side tube portion 28 so that the spring pin 60 is pressed against the main body side tube portion 28.

  As a result, the spring pin 60 acts in a direction that prevents the axial displacement of the spring pin 60 between the outer peripheral surface of the portion fitted in the main body side cylindrical portion 28 and the inner peripheral surface of the main body side cylindrical portion 28. It is possible to advantageously ensure the frictional force to be applied.

  Further, since the fitting projection 33 is fitted in the internal space 27 of the main body side cylinder portion 28 with respect to the spring pin 60 fitted and fixed to the main body side cylinder portion 28, the fitting protrusion on the spring pin 60 is provided. It is also possible to ensure a frictional force that acts in a direction that prevents displacement of the spring pin 60 in the axial direction between the inner peripheral surface of the portion where 33 is fitted and the outer peripheral surface of the fitting protrusion 33.

  Therefore, in the lock mechanism 11 having the above-described structure, the main body side cylinder portion 28, the fitting protrusion 33, and the lid side cylinder portion 38 have a dimensional error during molding, or the ambient temperature of the board case 10 for gaming machines. Even if the main body side cylinder part 28, the fitting protrusion 33, and the lid side cylinder part 38 are deformed due to the change of the above, a stable assembly state of the case main body 12 and the lid member 14 is advantageously realized. As a result, sliding displacement of the lid member 14 relative to the case body 12 in the opening direction (release direction), that is, release of the assembled state of the case body 12 and the lid member 14 can be advantageously prevented. It becomes.

  In particular, in the present embodiment, since the spring pin 60 is also fitted and fixed to the lid-side cylinder portion 38 (lower housing portion 42), the reaction force exerted by the lower housing portion 42 is tightened. Is exerted on the lower accommodating portion 42. Accordingly, a frictional force that prevents displacement of the spring pin 60 in the axial direction is also generated between the outer peripheral surface of the portion of the spring pin 60 fitted in the lower accommodation portion 42 and the lower accommodation portion 42. Is possible. As a result, it is possible to stabilize the state in which the spring pin 60 is inserted and disposed across the lid side cylinder portion 38 and the main body side cylinder portion 28, and the assembly state of the case main body 12 and the lid member 14 is released. Can be more advantageously prevented.

  In addition, in this embodiment, the spring pin 60 is fixed to the spring pin 60 in the insertion arrangement state in which the spring pin 60 is inserted and arranged across the lower housing part 42 (lid side cylinder part 38) and the main body side cylinder part 28. Both ends of the plate-like piece 66 in the assembly pin 64 in the longitudinal direction are fitted into opening holes 72 and 72 formed on the bottom wall side of the pair of opposing wall portions 70 and 70 in the upper accommodating portion 40. Thus, each end in the longitudinal direction of the plate-like piece 66 can be locked to the surface on the opposite side of the inner peripheral surface 74 of the opening hole 72 from the insertion direction of the spring pin 60. . Accordingly, it is possible to more advantageously prevent displacement of the spring pin 60 in the axial direction, in particular, displacement in a direction opposite to the insertion direction of the spring pin 60.

  Therefore, in the present embodiment, it is possible to more advantageously realize a stable assembled state of the case main body 12 and the lid member 14, and as a result, the assembled state of the case main body 12 and the lid member 14 is further released. It can be advantageously prevented.

  In the present embodiment, since the main body side cylinder portion 28 has a bottomed cylindrical shape, the spring pin 60 is provided on the main body side cylinder portion 28 unless a hole is made in the bottom wall 31 of the main body side cylinder portion 28. In addition, the spring pin 60 and the main body side cylinder portion 28, between the spring pin 60 and the fitting protrusion 33, and further, the spring pin 60 and the lid side cylinder Since the frictional force acts against the portion 38 in the direction opposite to the direction in which the spring pin 60 is pulled out, it is possible to advantageously prevent the spring pin 60 from being pulled out. Release of the assembled state of the main body 12 and the lid member 14 can be advantageously prevented.

  In particular, in the present embodiment, as described above, the spring pin 60 is moved from the main body side cylinder portion 28 side to the lid side cylinder portion 38 side by making a hole in the bottom wall 31 of the main body side cylinder portion 28. Even in such a state, both ends of the plate-like piece 66 in the assembly pin 64 attached to the spring pin 60 are fitted in the opening holes 72 formed in the upper accommodating portion 40. The spring pin 60 cannot be pulled out from the side of the lid-side cylinder part 38 by pushing from the side of the body-side cylinder part 28 to the side of the lid-side cylinder part 38. As a result, the case body 12 and the lid Release of the assembled state of the member 14 can be advantageously prevented.

  Further, in the present embodiment, when the plate-like piece 66 in the assembly pin 64 fixed to the spring pin 60 is viewed from above in the axial direction of the spring pin 60, the plate-like piece 66 covers the spring pin 60. Therefore, it is possible to advantageously secure an area where a force can be applied when the spring pin 60 is fitted, and as a result, it is possible to improve the work efficiency of the work of inserting the spring pin 60. It becomes.

  Furthermore, in the present embodiment, since the insertion shaft 68 is formed so as to protrude from the central portion of the plate-like piece 66, the spring pin 60 is inserted and disposed across the lid side cylinder portion 38 and the main body side cylinder portion 28. It is possible to realize warping of both ends in the longitudinal direction of the plate-like piece 66 in the process up to this point.

  In the present embodiment, the spring pin 60 is fitted and fixed to both the main body side cylinder portion 28 and the lower accommodation portion 42 (lid side cylinder portion 38). Since the main body side cylinder portion 28 is positioned in the lower stage accommodating portion 32 of the container 29 by projection in the axial direction of the main body 28, the main body side cylinder portion 28 is connected to the peripheral wall 20 of the case main body 12. The attachment piece 30 and the attachment pieces 44, 44 connecting the lid side cylinder portion 38 to the peripheral wall 37 of the lid member 14 are cut with a nipper or the like to separate the main body side cylinder portion 28 from the case main body 12, By separating the lid-side cylinder portion 38 from the lid member 14, the spring pin 60 in a state where the main body-side cylinder portion 28 and the lid-side cylinder portion 38 are fitted and fixed can be extracted above the container 29. It becomes. As a result, it is possible to release the assembled state of the case main body 12 and the lid member 14 while leaving a trace of the destruction of the lock mechanism 11. In the present embodiment, the sliding displacement of the lid member 14 with respect to the case main body 12 is enabled only by cutting the attachment pieces 44, 44 with a nipper or the like. At this time, only the attachment pieces 44, 44 may be cut.

  As mentioned above, although one Embodiment of this invention was explained in full detail, this is an illustration to the last, Comprising: This invention is not limited at all by the specific description in this Embodiment.

  For example, the assembly pin 64 in the embodiment is not necessarily required. Further, the cornering of the outer edge of the spring pin 60 in the embodiment in the corner portion is not necessarily required. Furthermore, the container 29 in the embodiment 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 above-described embodiment, 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.

  Further, the spring pin 60 may be fitted and fixed only to the main body side cylinder portion 28.

  Furthermore, the fitting protrusion 33 does not need to protrude from the bottom wall 31 of the main body side cylinder portion 28, and extends, for example, from the peripheral wall portion of the main body side cylinder portion 28 inward in the direction perpendicular to the axis of the main body side cylinder portion 28. It may be connected and supported with respect to the connecting portion. In addition, a through hole having an appropriate size and shape may be formed in a portion of the bottom wall 31 of the main body side cylinder portion 28 where the fitting protrusion 33 is not provided.

  Furthermore, the control board 16 does not need to be screwed to the lid member 14, and by inserting a protrusion provided on the lid member 14 into a hole formed at an appropriate position of the control board 16, It may only be positioned with respect to the lid member 14.

  In the above-described embodiment, the inner diameter dimension of the lower housing portion 42 may be gradually reduced from the upper end in the axial direction to the lower end in the axial direction. Thereby, it becomes possible to implement | achieve the insertion operation | work of the spring pin 60 advantageously.

  In addition, as a shape viewed from a direction orthogonal to the plate surface of the plate-like piece, any of a circle, an ellipse, a polygon, and the like can be adopted.

  Furthermore, in the above-described embodiment, the lock mechanism employed in the gaming machine substrate case from the viewpoint of preventing fraud has been described, but the present invention is merely a second configuration relative to the first component. Of course, it is also possible to employ as a means for assembling and fixing the members.

  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.

The top view of the substrate case for game machines as one Embodiment of this invention. The top view of the case main body which comprises the board | substrate case for the same gaming machines. Sectional drawing of the III-III direction in FIG. Sectional drawing of the IV-IV direction in FIG. The top view of the cover member which comprises the board | substrate case for game machines of FIG. Sectional drawing of the VI-VI direction in FIG. Sectional drawing of the VII-VII direction in FIG. Sectional drawing for demonstrating the state before sliding a cover member with respect to a case main body. Sectional drawing for demonstrating the state which made the lid member slide with respect to the case main body. It is sectional drawing equivalent to the XX direction in FIG. 1, Comprising: The principal part expanded sectional view for demonstrating the positional relationship of a main body side cylinder part and a lid | cover side cylinder part. The front view of the spring pin employ | adopted as the board | substrate case for game machines of FIG. FIG. 12 is a top view of the spring pin shown in FIG. 11. 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. FIG. 16 is a cross-sectional view illustrating a state in which the spring pin of FIG. 15 is fitted in the lower accommodation portion. Sectional drawing which shows the state by which the spring pin of FIG. 15 was fitted by the lower side accommodating part and the main body side cylinder part. The drawing which looked at the fitting state to the lower side accommodating part of the spring pin shown by FIG.

Explanation of symbols

10: Board case for gaming machine, 11: Lock mechanism, 12: Case body, 14: Cover member, 28: Body side cylinder part, 33: Insertion protrusion, 38: Cover side cylinder part, 60: Spring pin

Claims (1)

Assembly of the first component member and the second component member in an assembly structure including the first component member and a second component member assembled to the first component member An assembly state release prevention mechanism for preventing the release of the state,
A first cylindrical portion integrally formed with one of the first component member and the second component member, and a single tube portion integrally formed with the other of the first component member and the second component member. And having a second cylindrical portion integrally formed with a fitting projection toward the first cylindrical portion side in a central portion in the internal space,
Under the assembled state, the first cylindrical portion and the second cylindrical portion are in a state where the respective internal spaces are connected in a direction intersecting with a release direction for releasing the assembled state. Is located in the
A spring pin having an outer dimension larger than the dimension of the internal space in the second cylindrical portion in the direction perpendicular to the axis spans the internal space of the first cylindrical portion and the internal space of the second cylindrical portion. been placed Te,
The spring pin is inserted from the opening opposite to the second cylinder part in the first cylinder part, and the direction perpendicular to the axis in the center hole of the spring pin in the internal space of the second cylinder part Fixed to the second cylinder part by externally fitting to the fitting projection having a cross-sectional shape in a direction perpendicular to the axis substantially corresponding to the cross-sectional shape of the second cylinder part and being in pressure contact with the inner peripheral surface of the second cylinder part And the assembly state cancellation | release prevention mechanism which made it impossible to cancel | release the assembly state of this 1st component member and this 2nd component member.

Images