JP4154735B2 - Sealing structure of substrate storage box in pachinko machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a sealing structure for a substrate storage box in a pachinko machine.
[0002]
[Prior art]
Some pachinko machines have a big hit when a symbol variably displayed on a variable display device stops at a predetermined symbol. Such a pachinko machine is usually provided with a circuit board having a CPU or the like for controlling the variable display device. And this circuit board is accommodated in the board | substrate storage box with which the back surface of a game board is mounted | worn. The substrate storage box is composed of a fixed case and a covering case that is covered with the case. However, it is required that the opening of the case be closely monitored to prevent unauthorized modification. For this reason, sticking paper has been conventionally performed on the mating surfaces of both cases.
[0003]
[Problems to be solved by the invention]
However, even if it is a sealed paper, the possibility of peeling without being broken is not completely denyable. In the past, the only proof of sealing was the presence or absence of cutting of the sealing paper. In the unlikely event that the sealing paper was skillfully peeled off, it was immediately exposed to the risk of unauthorized modification. . Thus, there was a need for a means to achieve greater seal integrity.
The present invention has been developed and devised in view of the above-described conventional problems, and an object of the present invention is to provide a sealing structure capable of performing reliable sealing.
[0004]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the invention of claim 1 is characterized in that a fixed side case for fixing a circuit board for controlling a game operation and a covering side case aligned with the fixed side case are used to form the interior of both cases. The fixed-side case is made of a steel plate having a rectangular shape and has a plurality of hook holes, and the covering-side case is a peripheral edge of the rectangular steel plate. A side wall is formed by bending the part to form a box and a window hole is opened, and a locking protrusion is cut and raised toward the inside of the box shape on the side wall of the covering side case, A transparent plastic closing plate is mounted on the back side of the covering side case, which closes the window hole and extends along the inner surfaces of the pair of side walls of the covering side case and has locking pieces corresponding to the locking protrusions. The locking projection The hooking piece that is further locked and formed on the side edge of the covering side case is engaged with the hooking hole formed in the stationary side case, and the hooking hole is formed on the side wall of the covering side case. The case is fixed to each other by screwing a mounting piece formed by bending from the edge of the side wall opposite to the formed side wall to the boss provided on the fixed side case, and is restricted to the closing plate. While the piece is extended and formed so as to protrude out of the covering side case, the fixed side case is provided with a resin caulking piece so as to protrude out of the fixed side case, and the restriction piece and the caulking piece Both cases are sealed by bonding the protruding ends to each other.
[0005]
[Action and effect of the invention]
According to the first aspect of the present invention, since the resin members are provided in both cases with the end portions protruding outside the case, the end portions can be bonded to each other after the circuit board is stored. it can. Therefore, if the circuit board is accommodated and the ends of the resin members are bonded to each other, even if the case is subsequently opened, the resin member resists this and the sealing state of the case is maintained. That is, unless the bonded portion is broken or cut, the case cannot be opened, so that it is clear that the seal has been released by the trace of the breakage.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
[First embodiment]
Hereinafter, a first embodiment embodying a sealing structure of a substrate storage box in a pachinko machine according to the present invention will be described with reference to FIGS.
<Outline of pachinko machine>
First, the outline of the pachinko machine will be briefly described. In FIG. 9 showing the front of the pachinko machine, a metal frame 12 is fitted into the front frame 11 of the pachinko machine formed in a frame shape, and the lower opening portion of the opening of the metal frame 12 is the front plate 13. It is blocked by. The front plate 13 is provided with an upper tray 14 that stores the hit ball and supplies the hit ball to a hit ball launching device (not shown). Further, a window frame 15 is fitted into the upper opening portion of the opening of the metal frame 12, and a transparent plate glass 16 is fitted therein. Further, a lower tray 17 for storing a prize ball and a handle 18 for operating the ball striking device are provided below the front plate 13 of the front frame 11.
[0007]
On the other hand, on the back side of the front frame 11, a game board 19 shown in FIG. Thereby, a game area is formed in the window frame 15. In addition, a winning ball collective cover 20 is mounted on the back surface of the game board 19. And the board | substrate storage box 21 provided with the sealing structure 40 of this invention is mounted | worn there through the metal hinge piece H formed by bending, Control of the display apparatus etc. on the game board 19 in it. The circuit board 22 to be performed is sealed.
[0008]
<Structure of board storage box>
As shown in FIG. 1, the board storage box 21 includes a stationary case 23 for fixing the circuit board 22 and a covering case 24 that covers the circuit board 22. As shown in FIG. 2, the fixed case 23 is made of a rectangular metal steel plate, and bosses 25 (made of metal) are erected at the four corners of the circuit board on each boss 25. 22 is screwed. Further, a boss portion 26 is provided upright at a position slightly inward of the center of one long side portion 23a (the edge portion on the near side in FIG. 2) of the fixed case 23. The caulking piece 46 to be described later is screwed on the circuit board 22. Further, a substrate holding portion 27 is formed at the central portion of one long side portion 23a (the edge portion on the front side in FIG. 2) of the fixed side case 23, and one edge portion of the circuit board 22 is provided here. It can be inserted and held. Further, four elongated hook holes 28 extending along the length direction are formed at appropriate intervals on the long side 23b (the edge on the back side in FIG. 2) on the opposite side.
[0009]
On the other hand, as shown in FIG. 3, the covering side case 24 is formed by bending a peripheral edge portion of a rectangular metal steel plate downward. The dimension in the length direction of the covering side case 24 is set to be equal to that of the fixed side case 23, but the dimension in the width direction is set to be slightly shorter than that of the fixed side case 23. In other words, when the covering side case 24 is properly closed with respect to the fixed side case 23 by a method described later, the long side portion 23a side of the fixed side case 23 is slightly exposed. Further, the side walls 24c and 24d on the short side slightly protrude toward the front side in FIG. 3, and the side wall 24a on the long side (the side wall on the near side in FIG. 3) is located inside the protruding portion. Mounting pieces 29 and 29 are bent from the lower edge. Each of the attachment pieces 29 is set so as to be aligned with both the boss portions 25 located on the one long side portion 23a side when the covering side case 24 is in a normal closed state with respect to the fixed side case 23. The boss portions 25 are fastened together with the circuit board 22 interposed therebetween. Further, on the side wall 24b opposite to the side wall 24a on which the mounting piece 29 is formed (in FIG. 3, the back side wall), four hook pieces 30 are provided at the lower edge of the side wall 24b. Further, the cover side case 24 is inserted into the hook hole 28 of the fixed side case 23 in a posture (the posture shown in FIG. 5) that is opened approximately 90 degrees with respect to the fixed side case 23. After that, the covering side case 24 can be rotated in the closing direction (the arrow direction in FIG. 5) with respect to the stationary side case 23 with the hooking piece 30 engaged with the hooking hole 28. ing.
[0010]
Further, as shown in FIG. 3, a large rectangular window hole 31 is opened in the upper surface portion of the covering side case 24, and a plurality of heat radiating holes and key mounting holes are opened around it, though not shown. ing. On the other hand, a plastic closing plate 32 is attached to the back surface of the covering case 24 so as to close the window hole 31. However, the closing plate 32 is transparent so that the inside of the case can be seen through the window hole 31. More specifically, the window hole 31 is blocked by the transparent closing plate 32 because the model number (for example, serial number) of a ROM (read only memory) attached on the circuit board 22 stored in the board storage box 21 is used. And the version number) can be confirmed through the window hole 31. Further, on the side walls 24a and 24b of the covering-side case 24, a pair of locking receiving portions 33 for mounting the closing plate 32 on the inner surface thereof are arranged on both the front and rear sides (right and left sides in FIG. 3). Both are formed by cutting inward.
[0011]
On the other hand, the closing plate 32 has a size sufficient to cover the back side of the upper wall surface of the covering side case 24, and has a side edge shape that fits the R portion toward the inner wall surface on the long side. . Further, a pair of locking pieces 34 project from the front and rear sides of the closing plate 32 (both left and right sides in FIG. 3) corresponding to the locking receiving portions 33. Then, when the closing plate 32 is overlapped so as to close the window hole 31 on the back surface side of the covering side case 24, each locking piece portion 34 is engaged with the locking receiving portion 33, whereby the closing plate 32 is moved to the window hole. 31 is held in a closed state.
[0012]
<Sealing structure>
Next, the sealing structure 40 will be described. Protruding pieces 41 and 42 are bent upward at the central portion of the long side portion 23b and the central portion of one short side portion 23c of the fixed case 23, respectively. Further, in the covering side case 24, notches 43 and 44 are formed at the central portions of the long side wall 24b and the short side wall 24d, respectively, corresponding to the protruding pieces 41 and 42, respectively. Then, when the covering side case 24 is brought into a normal closed state with respect to the fixed side case 23, the protruding pieces 41 and 42 of the fixed side case 23 are aligned with the notches 43 and 44, respectively. The sealing paper 45 can be affixed to the alignment surface forming
[0013]
Further, in the present embodiment, a resin caulking piece 46 is screwed to the boss portion 26 at the center portion and a slightly inner portion of one long side portion 23 a on the circuit board 22 screwed to the fixed side case 23. It has been stopped. The caulking piece 46 has a plate shape, and one end thereof extends to the long side portion 23 a of the stationary case 23. That is, when the cases 23 and 24 are properly closed, the screwed portion of the caulking piece 46 is closed by the covering side case 24, but the end of the caulking piece 46 is exposed outside the case. It becomes. A caulking projection 46a having a short cylindrical shape is integrally formed on the upper surface of the end portion of the caulking piece 46.
[0014]
On the other hand, in the covering side case 24, one long side portion of the closing plate 32 (the side portion corresponding to one long side portion 23a of the fixed side case 23, the front side portion in FIG. 3) is the center. A restriction piece 47 is formed to extend downward from the lower edge of the part. As shown in FIG. 4, the lower end portion of the restriction piece 47 extends to the lower edge portion of the side wall 24 a with the closing plate 32 attached to the back side of the covering side case 24, and is then bent outward at a substantially right angle. . That is, when the closing plate 32 is attached to the covering side case 24, the lower end portion of the regulating piece 47 protrudes outward from the center of the lower edge portion of the side wall 24a, and both the cases 23 and 24 are in the normal closed state. It is set to be overlapped with the end portion of the caulking piece 46 of the fixed side case 23. Further, a caulking hole 47a is perforated in the bent lower end portion, and the caulking protrusion 46a of the caulking piece 46 is fitted here and the tip thereof slightly protrudes from the caulking hole 47a in a normal closed state. Is set to
[0015]
<Operation of First Embodiment>
A procedure for storing and sealing the circuit board 22 in the board storage box 21 will be described. First, the circuit board 22 is overlaid on the stationary case 23, the one side edge of the circuit board 22 is held by the board holding part 27, and the other corners are screwed to the boss part 25. Further, in this state, the hooking piece 30 of the covering-side case 24 is inserted into the hooking hole 28 of the fixing-side case 23 in a posture in which the covering-side case 24 is opened approximately 90 degrees with respect to the fixing-side case 23 (FIGS. 1 and 5). reference). Then, the covering side case 24 is rotated in the closing direction with respect to the stationary side case 23 while the hooking piece 30 is engaged with the hooking hole 28. Subsequently, the attachment piece 29 of the covering side case 24 is fastened to the boss portion 25 in a state where the attachment piece 29 is pressed onto the circuit board 22. As a result, the cases 23 and 24 are properly closed, and the circuit board 22 is stored in the board storage box 21 (see FIG. 6).
[0016]
Further, when both cases 23 and 24 are properly closed, the projecting pieces 41 and 42 are flush with the cutouts 43 and 44. And the sealing paper 45 is affixed on the alignment surface so that it may straddle from the fixed side case 23 to the covering side case 24 (refer to FIG. 7, only the alignment surface of the protruding piece 42 and the notch 44 is shown in FIG. 7). . Thus, the substrate storage box 21 is sealed with the sealing paper 45 and is not opened unless the sealing paper 45 is peeled off.
[0017]
Further, when the cases 23 and 24 are properly closed, the lower end portion of the covering case 24 is overlapped with the end portion of the caulking piece 46 of the fixed case 23. Then, as shown in FIG. 6, the caulking protrusion 46a fits into the caulking hole 47a and the tip protrudes slightly, so that the protruding portion is heat caulked (see FIG. 7). As a result, the regulating piece 47 of the covering side case 24 is caulked and connected to the caulking piece 46 of the fixed side case 23, and the substrate storage box 21 is not opened unless the heat caulking portion is broken or cut. Therefore, the substrate storage box 21 is double-sealed by sticking the sealing paper 45 and caulking and connecting the regulating piece 47 to the caulking piece 46.
[0018]
<Effect of the first embodiment>
As described above, in the present embodiment, the restriction piece 47 of the covering-side case 24 is caulked and connected to the caulking piece 46 of the fixed-side case 23, so that even if the sealing paper 45 is skillfully peeled off to open the box 21, the restriction piece 47 resists this and cannot be opened unless the heat-caulked part is destroyed or cut. Therefore, the sealing state of the substrate storage box 21 is reliably maintained. Further, when the heat caulking portion is broken or cut, it becomes clear that the seal has been released by the trace of the breakage or the like.
Further, when the caulking jig is pressed against the caulking protrusion 46a, the caulking protrusion 46a may be pushed and come out of the caulking hole 47a. However, in this embodiment, the end of the caulking piece 46 protrudes outside the box 21. Since the caulking work can be performed in a state where the caulking piece 46 is pressed from the lower surface side, the caulking protrusion 46a does not come out of the caulking hole 47a, and the caulking work becomes very easy.
[0019]
[Second Embodiment]
10 and 11 show a second embodiment of the present invention. In the first embodiment described above, the case where the fixed side case 23 is applied to a type having a substantially flat plate shape and no side wall around the fixed side case 23 is shown. A case where the edge is applied to a side wall is described.
[0020]
The fixed case 23 is often made of metal for reasons such as the need for grounding, and there is no need to provide a transparent resin portion for monitoring unlike the covering case 24. Therefore, as in the case of the first embodiment, the caulking piece 51 is specially provided as a caulking exclusive item. In the present embodiment, the caulking piece 51 is formed in an L shape, and one end of the caulking piece 51 is fastened together with the circuit board 22 to one corner of the fixed side case 23.
[0021]
In addition, in the case where the side wall is provided in the fixed case 23 as described above, a plurality of heat radiating holes 52 are often provided here. Therefore, in the present embodiment, other than the caulking pieces 51 using the heat radiating holes 52 are provided. The end is pulled out. Note that the selected heat radiation hole 52 is preferably located in the center for the certainty of closing. Therefore, the other end portion of the caulking piece 51 is extended to the center and then bent and guided to the outside through the heat radiation hole 52.
[0022]
On the other hand, the restricting piece 53 is formed to extend outward from a notch portion 54 formed in the covering side case 24, and then bent downward, and its lower end portion is the other end portion of the caulking piece 51 in a properly closed state. Are bent outward so as to be stacked on each other. Further, the other end portion of the caulking piece 51 and the lower end portion of the restricting piece 53 are formed with a caulking projection 51a and a caulking hole 53a so as to be fitted as in the first embodiment, and both cases 23 and 24 are properly closed. When in the lid state, the caulking projection 51a is fitted into the caulking hole 53a so that the protruding portion can be caulked with heat.
Thus, in this embodiment, since the edge part of the crimping piece 51 is pulled out using the heat radiating hole 52, it is not necessary to provide a dedicated drawing hole or the like even when applied to the fixed side case 23 having a side wall. The end of the caulking piece 51 can be pulled out of the case.
Other configurations and caulking operations are the same as those in the first embodiment, and a description thereof will be omitted.
[0023]
[Other Embodiments]
The present invention can be modified in various ways, and the following modifications are also included in the technical scope of the present invention.
(1) In each of the above embodiments, the caulking projections 46a and 51a are formed on the caulking pieces 46 and 51 side, and the caulking holes 47a and 53a are formed on the regulating pieces 47 and 53 side. A caulking hole may be formed, and a caulking projection may be formed on the regulating piece side. However, in this case, since the caulking protrusion will protrude on the lower surface of the caulking piece, the board housing box in the above embodiment is attached with the end of the caulking piece protruding further outward from the circuit board, It is necessary to configure the restriction piece to be caulked with heat at the protruding portion.
[0024]
(2) In the first embodiment, the side opposite to the side on which the attachment piece 29 of the covering side case 24 is provided is fixed by being hooked on the other long side portion 23 b of the fixing side case 23. However, it may have a structure in which all four corners of the covering case are screwed to the fixed case.
[0025]
(3) In the first embodiment, the caulking piece 46 is configured to be screwed to the boss portion 26 provided separately from the boss portion 25 that fixes the circuit board 22, but the circuit board is fixed. You may comprise so that it may fix using the boss | hub part for doing.
However, in this case, it is necessary that the boss portion for fixing the circuit board is in a position where it is closed by the covering side case.
[0026]
(4) Furthermore, the caulking piece may be directly screwed to the fixed side case from the inside. In short, after the caulking piece is fixed and closed in the space closed by the covering side case. What is necessary is just that the fixation is not removed.
[0028]
( 5 ) In the first embodiment, the double sealing structure is formed by the sealing paper 45 and the caulking connection, but the sealing structure is only the caulking connection between the regulation piece and the caulking piece without performing the sealing by the sealing paper. It may be.
[0029]
( 6 ) In each of the above embodiments, the caulking pieces 46, 51 and the regulating pieces 47, 53 are connected by heat caulking the caulking projections 46a, 51a. It may be connected by the
[0030]
( 7 ) The caulking pieces 46 and 51 in each of the above embodiments may be fixed to either the upper side or the lower side of the circuit board 22.
In addition, the present invention can be implemented with various modifications without departing from the scope of the invention.
[Brief description of the drawings]
FIG. 1 is a perspective view showing the entirety of a first embodiment.
FIG. 2 is a perspective view showing a fixed side case in the same embodiment.
FIG. 3 is an exploded perspective view showing a covering side case and a closing plate in the same embodiment.
FIG. 4 is a partially enlarged perspective view showing a regulating piece in the same embodiment.
FIG. 5 is a cross-sectional view showing a state in which the hook piece of the covering side case is engaged with the hook hole of the fixed side case in the same embodiment;
FIG. 6 is a cross-sectional view showing a state in which the circuit board is accommodated in the embodiment.
FIG. 7 is a perspective view showing a state in which the circuit board in the embodiment is housed.
FIG. 8 is a rear view showing the rear surface of the game board in the same embodiment.
FIG. 9 is a front view showing the front of the pachinko machine in the same embodiment.
FIG. 10 is a partially enlarged perspective view showing a caulking piece in the second embodiment.
FIG. 11 is a partially enlarged perspective view showing a fitting state of the caulking piece and the regulating piece in the embodiment.
[Explanation of symbols]
21 ... Substrate storage box 22 ... Circuit board 23 ... Fixed side case 24 ... Cover side case 46, 51 ... Caulking piece (resin member)
47, 53 ... Restriction piece (resin member)

Claims (1)

It is a structure for sealing and storing the circuit board inside both cases by a fixed side case for fixing the circuit board for controlling the game operation and a covering side case aligned with the fixed side case. And
The fixed side case is made of a metal having a rectangular shape and has a plurality of hook holes, and the covering side case has a box shape in which a side wall is formed by bending a peripheral edge of a rectangular steel plate and a window hole. Are formed on the pair of opposite side walls of the cover-side case by being cut and raised toward the inside of the box shape, and the window hole is formed on the back side of the cover-side case. A transparent plastic closing plate is attached and locked along the inner surfaces of the pair of side walls of the covering side case and has a locking piece corresponding to each locking protrusion, and is locked by the locking protrusion. And while engaging the hook piece formed in the side edge of the said covering side case with the hook hole formed in the said fixed side case, the side opposite to the side wall in which the said hook piece was formed among the said side walls of the said covering side case Side wall The bending formed mounting pieces from parts by screwing the boss portion provided in the stationary case with both cases are fixed to each other, so as to protrude the regulation piece to the closure plate to the outside of the covering casing On the other hand, a caulking piece made of resin is provided on the stationary side case so as to project out of the stationary side case, and the projecting ends of the regulating piece and the caulking piece are bonded to each other. A sealing structure for a substrate storage box in a pachinko machine, wherein both cases are sealed.

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