JP2727060B2 - Method for manufacturing control board housing case of gaming machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a control board accommodating case for a game machine such as a pachinko game machine, and more particularly to an improvement thereof.

[0002]

2. Description of the Related Art A control board of a pachinko game machine or the like is usually C
The microcomputer is provided with a PU, a ROM, a RAM, and the like, and game control contents such as a big hit occurrence probability are written in the ROM. This game control content is determined by legal regulations, and is not allowed to be changed without permission. However, since the content of the game control can be easily changed by replacing the ROM,
Unauthorized changes in game control have been made by removing the housing case. 2. Description of the Related Art Conventionally, a control board housing case of a pachinko game machine is configured by a fixed case section for fixing a control board and a covering case section for covering the fixed case section, as shown in, for example, Japanese Patent Application Laid-Open No. 17677/1988. In order to prevent the illegal game control contents from being changed,
A special sealing seal was attached to the connection boundary between the two cases so as to intersect the two case parts. When the seal is peeled, the printed contents are separated into the seal and the case to which the seal is attached, and the fact that the seal has been easily peeled off prevents fraud.

[0003]

However, a method has been known in which a special peeling agent is used for the above-mentioned sealing seal so that the peeling can be easily performed without knowing the fact of the peeling. With the seal, it is no longer possible to reliably prevent an unauthorized change of the game control contents by opening the case. An object of the present invention is to provide a method for manufacturing a control board housing case of a gaming machine in which it is extremely difficult to open a case without leaving the fact that the case has been opened. Aim.

[0004]

According to a first aspect of the present invention, there is provided a fixing case having a three-dimensional shape and supporting and fixing at least a part of a control board of a gaming machine. A control board housing case provided with a cover case portion attached and fixed to the fixed case portion while covering the control board, wherein the resin case is provided at at least one position of the fixed case portion or the cover case portion. Of the mating case and the mating case of the mating case not provided with the mating case, and penetrate the mating case when the covering case is attached to the fixed case. An insertion hole to be provided is provided, and a protruding portion of the engagement projection from the insertion hole is welded around the insertion hole by a heating device.

According to a second aspect of the present invention, in the method of manufacturing a control board accommodating case for a gaming machine according to the first aspect, the welding of the engaging projections has a gas blowing cooling function. That was performed by the heating device having

According to a third aspect of the present invention, there is provided a method of manufacturing a control board accommodating case for a gaming machine according to the first or second aspect, wherein the fixed case portion and the cover case portion are provided. The seal was pasted across the border.

According to a fourth aspect of the present invention, in the method of manufacturing a control board housing case of a gaming machine according to the first or second aspect, the welded portion of the engaging projection is provided. That is, the mark was formed.

[0008]

According to the first aspect of the present invention, the projecting portion of the resin-made engaging projection from the insertion hole is melted by heating and welded around the insertion hole. Thus, the fixed case and the cover case are securely fixed. Then, in order to remove both case parts, it is necessary to delete or melt the resin at the welded portion. However, when the resin is removed, it is necessary to add a fixing member when fixing the two case portions again, and it is very difficult to make the same state as before the removal. Also, in the case of melting again, it is very difficult to remove both cases without damaging the case portion and the like due to repeated heating, and to reproduce the first welded state. As a result, even if the two case parts are separated, the fact of the separation is easily confirmed, so that the illegal operation of the control board which requires the separation of the two case parts is reliably prevented. Further, by inserting the engaging projection into the insertion hole, the positioning of the two case portions can be performed very easily.

Further, since the invention according to claim 2 is constituted as described above, the welded portion is cooled by gas blowing immediately after welding by heating the engaging projection, so that the fixed portion is not damaged by welding. Can be minimized,
The finish of the welded portion can be uniform and a good appearance can be realized. Also, by cooling immediately after heating,
Generation of unpleasant odor can be suppressed, and the case assembling operation can be performed comfortably.

According to the third aspect of the present invention, in addition to the effect of fixing the two case parts by welding, it becomes more difficult to separate the two cases. Therefore, an unauthorized operation of the control board due to the separation of the two cases can be more reliably prevented.

According to the invention of the fourth aspect, a mark is formed on the welded portion by non-erasable printing, or a mark is formed on the welded portion, so that the two cases can be formed. Separation can be made almost impossible. Therefore, an unauthorized operation of the control board due to the separation of the two cases can be more reliably prevented. In particular, if the engraving is formed simultaneously with the formation of the welded portion, the engraving process is simplified, which is more convenient.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIGS. 1 and 2 are a front view and a rear view of a front side and a back side of a main body 10 of a pachinko game machine to which the present invention is applied. This is indicated by. A game board 11 is provided at an upper portion on the front side of the main body 10, and a symbol display device 12 is provided at the center of the game board 11. Upper part of the symbol display device 12,
Five winning openings 13 are provided on both the left and right sides and the lower left and right sides. On the lower side of the symbol display device 12, three first-type starting ports 14 and a special winning port 15 are provided. Then, each winning opening 13, the first type starting opening 14 and the large winning opening 1
5 is open in communication with the back surface of the game board 11.

As shown in FIG. 2, a back cover 20 is provided on the back side of the main body 10 at a position corresponding to the game board 11, and a winning ball collecting gutter 16 is provided below the back cover 20. Are provided to collect the winning balls emitted from the openings on the back surfaces of the winning ports 13, the first-type starting port 14, and the special winning port 15. The back cover 20
It is a substantially rectangular plate made of resin or metal such as polypropylene, and has a square opening (not shown) at the center. An accessory cover 21 is attached to the opening to cover and protect the back side of the symbol display device 12 protruding from the back of the game board. A control board housing case 30 is attached to the left-side cover 20 on the left side of the accessory cover 21.

The control board housing case 30 includes a base 31 and a cover case 35 as shown in FIGS. The base 31 is a flat plate made of a thermoplastic resin such as polypropylene, and has attachment pieces 32a to 32d at upper and lower corners on left and right side edges. The mounting pieces 32a to 32d include vertical portions 32a1 to 32d1 which are mounted vertically to the base 31, and vertical portions 3a to 32d1.
Horizontal portions 32a2 to 32d2 are provided at the tips of 2a1 to 32d1 and are provided horizontally with respect to the base 31 toward the inside. As shown in FIG. 7 (a), the vertical projections 32a1 and 32b1 are provided horizontally with cylindrical engagement projections 33 having a gap. A cylindrical hollow portion 33a is provided at the center of the engaging convex portion 33, and is used for screwing described later.

A mounting piece 32 is provided on the right edge of the base 31.
a protective plate 32 made of a resin having the same height as that between c and 32d.
e is provided. At a position on the left side of the upper edge of the base 31, a mounting piece 34 a for mounting the control board housing case 30 to the back cover 20 is mounted in parallel with the base 31. In addition, a protection plate 34 having the same height as the mounting pieces 32a to 32d is provided on a portion other than the mounting piece 34a on the upper edge.
b is mounted perpendicular to the base surface. Similarly, a mounting piece 34c is mounted in parallel with the base 31 at an intermediate portion of the lower edge of the base 31. A protection plate 34d is attached to a portion other than the attachment piece 34c perpendicularly to the base surface.

A control board 40 is mounted on the base 31. The left end of the control board 40 is attached to the mounting piece 32 of the board 31.
The right end of the control board 40 is fixed to the horizontal parts 32c2 of the mounting pieces 32c and 32d of the base 31 by bolting on the horizontal parts 32a2 and 32b2 of the base boards 31 and 32b2.
, 32d2 are bolted together with a covering case 35 described later. The control board 40 includes a printed wiring board and circuit components (not shown) such as a CPU, a ROM, and a RAM mounted on the printed wiring board. Various connectors (not shown) for connecting to a circuit are mounted.

A cover case 35 is attached to the base 31 and the control board 40 so as to cover a portion of the control board 40 excluding the connector mounting area. The covering case portion 35 is a box-shaped container made of transparent plastic, and has a slightly longer vertical dimension than the base 31 and a shorter horizontal dimension than the base 31. The right end is formed to be lower in height than the other ends, and the base 3 on which the control board 40 is placed is mounted.
When the cover case 35 is attached to 1, the other end except the right end covers the base 31 and the side of the control board 40,
The right end is placed on the control board 40. As shown in FIG. 7, through holes 36a and 36b (36b are not shown) are provided at upper and lower positions on the left end of the cover case portion 35, and the mounting piece vertical portions 32a and 32b are provided.
The engaging convex part 33 provided in can be inserted.
At the upper and lower positions on the right end of the covering case portion 35, mounting pieces 37a and 37b having ribs are provided.
Through holes (not shown) are provided in the horizontal portions of a and 37b. The attachment pieces 37a, 37b are attached to the attachment pieces 32c, 3
It is provided at a position corresponding to 2d.

Next, the assembly of the control board housing case 30 will be described. First, the control board 40 is placed on the base 31, and the four corners of the control board 40 are fixed to the horizontal portions 32a2 and 32b2 provided at the two left corners of the base 31 with bolts. Next, the through holes 36a, 36 at the left end of the covering case portion 35 are formed.
As shown in FIG. 7 (a), the engaging projections 33 provided on the vertical portions 32a1 and 32b1 at the left end of the base 31 are inserted into the base 31 and the cover case 35 is set on the base 31 as shown in FIG. Thus, the positioning of the combination of the base 31 and the cover case 35 can be performed very easily. Then, the control board 40 passes bolts through through holes (not shown) at the upper and lower right ends thereof and through holes (not shown) provided in the mounting pieces 37a and 37b of the covering case portion 35, so that the right horizontal portion 32c2, It is fixed at 32d2.

Further, the engaging projection 33 protruding from the through hole is provided.
Is melted using a heating device, and the engaging projection 33 is welded to the covering case 35. As the heating device, a device with a cooling mechanism, for example, an impulse welder (trade name, manufactured by Munekata Corporation) is preferably used. As shown in FIG. 6, the impulse welder is provided with a cylindrical heating element 52 in which a tip portion 50 is supported by a cylindrical insulator 51 and a tip is sealed, and is supported by the insulator 51 to form a cylindrical shape. A cooling air introduction pipe 53 introduced therein is provided. That is, as shown in FIG. 7 (b), the tip of the tip portion 50 is pressed against the engagement projection 33 while heating the heating body 52 to melt the engagement projection 33 made of thermoplastic resin. During this time, it is welded to the covering case 35. Thereafter, the cooling air is immediately supplied from the cooling air introduction pipe 53 to the heating element 5.
2 to cool the heating element 52. This allows
The welding of the engaging projections 33 is ensured, and
The surface shape of 3b is formed uniformly and beautifully. further,
Since excessive heating is not performed, deterioration and damage of the covering case portion 35 can be prevented. In addition, after the heating for a short time, the heating body 52 is cooled, so that the covering case 35 and the like are not unnecessarily heated. Therefore, generation of odor from the resin or the like due to heating can be suppressed, The welding work is performed comfortably. However, a heating device without a cooling mechanism can also be used for forming the above-mentioned welded portion by devising the heating time and the like.

As described above, the protruding portion of the resin-made engaging projection 33 from the insertion hole is melted by heating and welded around the insertion hole, so that the base 31 and the covering case 35 are connected to each other. Securely fixed. For this reason, it is very difficult to remove the two case portions and reattach them without leaving any trace of the removal. Therefore, the control board accommodating case 30 is not disassembled and the ROM of the control board is not replaced until such a great effort and time are spent, so that illegal acts are reliably prevented.

Then, a sealing seal 38 is affixed across the boundary between the base 31 of the assembled control board housing case 30 and the cover case 35. Accordingly, it becomes more difficult to perform an illegal act by removing the control board housing case 30. However, due to the welding of the base 31 and the covering case 35, the sticking of the sealing seal 35 for preventing fraud can be omitted. Also, in the above embodiment, even when the resin at the welded portion is removed by internal repair or the like, as shown in FIG. 8, the holes 33a are provided in the resin removed portion, so that the bolts 55 can be easily fixed. It has become.

Next, a modification of the welded portion between the base and the cover case in the above embodiment will be described. In the first modified example, as shown in FIG. 9A, a mounting piece 32a is provided horizontally on a base 31, and an engaging projection 33 is erected on the mounting piece 32a. A mounting piece 35a is provided in the covering case section 35 in parallel with the mounting piece 32a, and the through-hole 35 is formed in the mounting piece 35a.
b was provided. Thus, by welding the engaging projection 33 protruding from the through hole 35b, the same effect as in the above embodiment can be obtained. FIG. 9 shows a second modification.
As shown in FIG. 7B, contrary to the first modified example, the engaging projection 33 is erected downward on the cover case 35, and the mounting piece 32a is formed.
Are provided with through holes 32a1. As a result, the first
The same effect as the modification can be obtained. The third modified example is shown in FIG.
As shown in (c), opposite to the above-described embodiment, the engaging projection 33 is provided horizontally on the side wall of the covering case 35 toward the outside. Then, a mounting piece 32a is provided vertically at the end of the base,
A through hole 32a2 was provided in a vertical portion. With this, the same effect as in the above embodiment was obtained.

Then, in the above embodiment and the modified example,
As shown in FIG. 10A, the mark 33b1 can be formed on the welded portion by non-erasable printing, or the stamp 33b2 can be formed on the welded portion. Accordingly, when the two cases are separated from each other, the mark must be broken, and when the welded portion is reproduced, the same mark must be formed. Such a very complicated requirement makes the separation of the two cases almost impossible. Therefore, it is possible to more completely prevent the illegal operation of the control board accompanying the separation of the two cases. In particular, at the time of forming the welded portion, as shown in FIG. 10B, by using the heating chip 50 having the stamping convex portion 50a formed at the tip, the stamp can be formed simultaneously with the welding, The mark forming process is simplified and more convenient.

The shape, material, etc. of the base of the control board housing case, the covering cover, the method of mounting the control board to the case, the mounting position, and the like are not limited to those described in the above embodiment. It can be carried out with appropriate changes. Further, in the above embodiment, the control board housing case provided on the back surface of the pachinko gaming machine has been described, but the present invention is also applied to the control board housing case in other arrangement ball type game machines and the like. be able to.

[Brief description of the drawings]

FIG. 1 is a front view schematically showing a pachinko gaming machine according to one embodiment of the present invention.

FIG. 2 is a rear view schematically showing the pachinko gaming machine.

FIG. 3 is a front view schematically showing a control board housing case of the pachinko gaming machine.

FIG. 4 is a left side view schematically showing the control board housing case.

FIG. 5 is a right side view schematically showing the control board housing case.

FIG. 6 is an enlarged sectional view showing a heating tip portion of the welding device.

FIG. 7 is an enlarged cross-sectional view showing a fitting state of the engaging protrusion with the covering case, and during and after welding of the engaging protrusion.

FIG. 8 is an enlarged sectional view showing a fixing state of a welded portion by a bolt.

FIG. 9 is a cross-sectional view illustrating a fitting state of an engagement protrusion with a covering case according to first to third modifications.

FIG. 10 is a front view showing a mark provided on a welded portion and a cross-sectional view showing an example of forming the mark.

[Explanation of symbols]

10 ... body, 11 ... game board, 20 ... back cover, 30 ...
Control board accommodation case, 31 ... Base, 32a to 32d ... Mounting piece, 32a1 to 32d1 ... Vertical part, 32a2 to 32d2
... horizontal part, 33 ... engagement convex part, 34a, 34c ... mounting piece,
34b, 34d: Protective plate, 35: Covering case, 36
a, 36b: through holes, 37a, 37b: mounting pieces, 38:
Sealing seal, 40: control board, 42: right support piece, 50
... Tip part, 52. Heating body, 53. Cooling air introduction pipe.

Claims (4)

(57) [Claims] 1. A fixed case part having a three-dimensional shape and supporting and fixing a control board, and a covering case part fixed to the fixed case part while covering at least a part of the control board. A control board housing case of a gaming machine, wherein a resin engagement protrusion provided at at least one position of the fixed case portion or the cover case portion and a mating case portion not provided with the engagement protrusion portion. An insertion hole is provided at a position corresponding to the mating convex portion, and when the covering case portion is attached to the fixed case portion, an insertion hole is provided to penetrate the engaging convex portion. A method for manufacturing a control board housing case for a gaming machine, wherein a protruding portion of the control board is welded around the insertion hole by a heating device. 2. The method according to claim 1, wherein the welding of the engaging projections is performed by a heating device having a gas blowing cooling function. Manufacturing method of the control board housing case of the machine. 3. The method of manufacturing a control board housing case of a gaming machine according to claim 1, wherein a sealing seal is attached across a boundary between the fixed case portion and the cover case portion. A method for manufacturing a control board housing case of a gaming machine. 4. The control method for a game machine according to claim 1, wherein a mark is formed on a welded portion of said engaging projection. A method for manufacturing a substrate housing case.