JP2014223327A - Method for manufacturing game machine and method for peeling coating of game machine housing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a game machine manufacturing method capable of reusing a game machine housing at further low cost.SOLUTION: The game machine manufacturing method includes: performing a coating peeling process for a cabinet of a game machine housing in which a coating film is formed on a galvanized steel plate (S2); washing the cabinet from which the coating film is peeled off (S3); immersing the washed cabinet in a rust-preventive agent and rinsing it (S4); and recoating the rinsed cabinet (S5). In the coating peeling process (S2), the coating film of the cabinet is peeled off by using nonmethylene chloride-based paint stripper liquid whose hydrogen ion exponent is 11.3, and the galvanized film is left on the surface of the galvanized steel plate.

Description

  The present invention relates to a method for manufacturing a gaming machine and a method for painting and peeling a gaming machine casing.

  Conventionally, a "pachislot" comprising a plurality of reels each having a plurality of symbols arranged on each surface, a start switch, a stop switch, a stepping motor provided for each reel, and a controller. A game machine called is known. The start switch detects that the start lever has been operated by the player (start operation) after a game medium such as a medal or coin has been inserted into the game machine, and issues a signal requesting the start of rotation of all reels. Output. The stop switch detects that a stop button provided corresponding to each reel has been pressed by the player (stop operation), and outputs a signal requesting to stop the rotation of the corresponding reel. The stepping motor transmits the driving force to the corresponding reel. Further, the control unit controls the operation of the stepping motor based on the signals output from the start switch and the stop switch, and performs the rotation operation and stop operation of each reel.

  In such a gaming machine, when a start operation is detected, a lottery process using random numbers (hereinafter referred to as an internal lottery process) is performed on the program, and the result of the lottery (hereinafter referred to as an internal winning combination) is stopped. The reel rotation is controlled to stop based on the operation timing. Then, when the rotation of all the reels is stopped and the symbol combination related to the winning is displayed, a privilege corresponding to the symbol combination is given to the player. As an example of a privilege given to a player, payout of game media (medals, etc.), re-game operation for performing internal lottery processing again without consuming game media, and game media payout opportunities increase. The operation of a bonus game can be mentioned.

  Note that a gaming machine usually includes, for example, a cabinet with a built-in reel or the like and a main door provided with various switches, for example, and the main door is attached to the cabinet so as to be opened and closed. Conventionally, in a gaming machine having such a configuration, in order to improve its practicality (for example, recycling, reuse, etc. of a gaming machine housing), a technique for forming a cabinet with a steel plate has been proposed (for example, Patent Documents). 1).

JP 2004-329327 A

  As described above, a gaming machine having a cabinet formed of a steel plate has been proposed in the past, but in such a gaming machine, a technology that enables reuse (reuse) of the gaming machine housing at a lower cost. Development is required. The present invention has been made to meet this demand, and an object of the present invention is to provide a method for manufacturing a gaming machine that enables reuse of the gaming machine casing at a lower cost, and coating of the gaming machine casing. It is to provide a peeling method.

  In order to solve the above problems, in the gaming machine manufacturing method of the present invention, various processes are performed in the following procedure. First, a paint peeling process is performed on a cabinet of a gaming machine housing in which a coating film is formed on a galvanized steel sheet (S2 in FIG. 3 described later). Next, the cabinet from which the coating film has been peeled is washed with water (S3 in FIG. 3 described later). Next, the water-washed cabinet is immersed in a rust preventive agent and rinsed (S4 in FIG. 3 described later). Next, the rinsed cabinet is repainted (S5 in FIG. 3 described later). In the present invention, in the paint stripping treatment, the coating film of the cabinet is stripped using a non-methichroic stripping solution having a hydrogen ion index of 11.3, leaving a galvanized film on the surface of the galvanized steel sheet.

  In the gaming machine manufacturing method of the present invention, the cabinet may be immersed in the stripping solution at a predetermined temperature for a predetermined time in the paint stripping process.

  In the gaming machine casing peeling method of the present invention, the coating peeling process is performed on the cabinet of the gaming machine casing in which the coating film is formed on the galvanized steel sheet (S2 in FIG. 3 described later). In the present invention, in the paint stripping treatment, the coating film of the cabinet is stripped using a non-methichroic stripping solution having a hydrogen ion index of 11.3, leaving a galvanized film on the surface of the galvanized steel sheet.

  As described above, in the gaming machine manufacturing method and the gaming machine casing paint peeling method of the present invention, the cabinet has a hydrogen ion index of 11.3 and a non-methichroic peeling solution is used in the paint peeling process of the cabinet. Remove the paint film on the cabinet and leave the galvanized film on the surface of the galvanized steel sheet. Therefore, according to the present invention, when the gaming machine is reused, it is not necessary to re-plat the cabinet, and the gaming machine housing can be reused at a lower cost.

It is a perspective view which shows the external appearance structure of the game machine in one Embodiment of this invention. It is a figure which shows the internal structure of the game machine in one Embodiment of this invention. It is a flowchart which shows the procedure of the manufacturing method of the game machine in one Embodiment of this invention, and the coating peeling method of a game machine housing | casing. It is a figure which shows the peeling characteristic in the paint peeling method of an Example and various modifications.

  In the following, an embodiment of a paint peeling method for a gaming machine housing according to the present invention and a manufacturing method (reuse method) for a gaming machine including the same will be described with reference to the drawings.

  In the present embodiment, “pachislot” is described as an example of the gaming machine. However, the present invention is not limited to this, and the gaming machine manufacturing method and gaming machine casing coating peeling method according to the present invention are not limited thereto. Can be applied to any gaming machine as long as it is a gaming machine having a cabinet formed of a steel plate (sheet metal). In particular, the present invention is suitable for a gaming machine having a short reuse cycle of a gaming machine such as a “pachislot”, for example, a gaming machine called “pachinko”.

<Pachislot structure>
First, before explaining the manufacturing method of the gaming machine and the coating peeling method of the gaming machine housing of this embodiment, the structure of the pachislot will be described with reference to FIGS. FIG. 1 is a perspective view showing the external structure of the pachislot machine manufactured in the present embodiment, and FIG. 2 is a view showing the internal structure of the pachislo machine.

[Appearance structure]
As shown in FIG. 1, the pachi-slot 1 includes a cabinet 1a that houses reels, circuit boards, and the like, and a front door 1b that is attached to the cabinet 1a so as to be openable and closable. Three reels 3L, 3C, and 3R are provided inside the cabinet 1a, and the three reels 3L, 3C, and 3R are arranged in a row in a horizontal direction (a direction perpendicular to the rotation direction of the reels). Hereinafter, the reels 3L, 3C, and 3R are referred to as a left reel 3L, a middle reel 3C, and a right reel 3R, respectively.

  Each reel has a cylindrical reel body and a translucent sheet material mounted on the peripheral surface of the reel body. A plurality of (for example, 21) symbols are continuously drawn on the surface of the sheet material along the circumferential direction of the reel body.

  A liquid crystal display device 10 is provided in the center of the front door 1b. The liquid crystal display device 10 includes a display screen including a display window 4 for displaying symbols drawn on the three reels 3L, 3C, 3R. In the pachi-slot 1 of the present embodiment, the entire display screen including the display window 4 is used to display an image and execute an effect.

  The display window 4 is made of, for example, a transparent member such as an acrylic plate, and is provided at a position overlapping with the three reel arrangement regions when viewed from the front (player side) as shown in FIG. It is provided so as to be positioned in front of one reel (player side). Therefore, the player can visually check the symbols drawn on the three reels provided behind the display window 4 through the display window 4.

  In the present embodiment, when the rotation of the corresponding reel provided behind the display window 4 stops, the three symbols arranged in succession among a plurality of types of symbols drawn on each reel. Is configured to display. That is, in the frame of the display window 4, an upper stage, a middle stage, and a lower stage are provided for each reel, and one symbol can be displayed in each area. Then, a predetermined line (winning determination line) for determining whether or not a prize is won is set over the areas of the left reel 3L, the middle reel 3C, and the right reel 3R.

  A 7-segment display 6 made up of 7-segment LEDs (Light Emitting Diodes) is provided at the bottom of the display screen of the liquid crystal display device 10. The 7-segment display 6 digitally displays information such as the number of medals inserted in the current game, the number of medals paid out to the player as a privilege, and the number of medals deposited inside the pachislot 1.

  Further, the front door 1b is provided with various devices (medal slot 11, MAX bet button 12, 1BET button 14, start lever 16, stop buttons 17L, 17C, and 17R) to be operated by the player.

  The medal slot 11 is provided to accept a medal that is inserted into the pachislot 1 from the outside by the player. The medals accepted through the medal slot 11 are inserted into one game up to a predetermined number (for example, three), and the amount exceeding the predetermined number can be deposited inside the pachislot machine 1 (so-called Credit function).

  The MAX bet button 12 and the 1BET button 14 are provided to determine the number of coins put in one game from medals deposited inside the pachislot 1. Although not shown in FIG. 1, the front door 1b is provided with a settlement button (disposed on the side of the start lever 16 opposite to the stop button). This checkout button is provided to pull out (discharge) medals deposited inside the pachi-slot 1 to the outside.

  The start lever 16 is provided to start rotation of all reels (3L, 3C, 3R). The stop buttons 17L, 17C, and 17R are provided in association with the left reel 3L, the middle reel 3C, and the right reel 3R, respectively, and each stop button is provided to stop the rotation of the corresponding reel.

  Further, as shown in FIG. 1, the front door 1b is provided with a medal payout opening 18, a medal tray 19, speakers 21L, 21R, and the like. The front door 1b is provided with various lamps (lamp 20a in FIG. 1).

  The medal payout port 18 guides medals discharged by driving a medal payout device 33 described later to the outside. The medal tray 19 stores medals discharged from the medal payout opening 18. Further, various lamps (for example, the lamp 20a in FIG. 1) provided on the front door 1b are configured by LEDs or the like, and turn on and off the light in a pattern corresponding to the contents of the effect. In addition, the speakers 21L and 21R output sound such as sound effects and music corresponding to the production contents.

  In addition, although this embodiment demonstrates the structure provided with the liquid crystal display device 10, this invention is not limited to this. For example, a plurality of LEDs may be arranged in a matrix on the top of the reel, and a production (notification) may be performed by a dot pattern by turning these LEDs on and off.

[Internal structure]
Next, the internal structure of the pachislo 1 will be described with reference to FIG. FIG. 2 is a diagram illustrating a state in which the front door 1b is opened, and shows a structure on the back surface side of the front door 1b and a structure inside the cabinet 1a. Note that the configuration of the cabinet 1a itself, such as material, will be described later.

  A main board 31 constituting a main control circuit is provided in an upper portion in the cabinet 1a. The main control circuit is a circuit that controls the main operation of the game in the pachislot machine 1 and the flow between the operations, such as determination of the internal winning combination, rotation and stop of each reel, determination of the presence or absence of winning.

  Three reels (a left reel 3L, a middle reel 3C, and a right reel 3R) are provided at the central portion in the cabinet 1a. Although not shown in FIG. 2, each reel is connected to a corresponding stepping motor through a gear having a predetermined reduction ratio.

  A medal payout device 33 having a structure capable of storing a large amount of medals and discharging them one by one is provided in a lower portion in the cabinet 1a. In addition, a power supply device 34 that supplies necessary power to each device of the pachislot machine 1 is provided on one side portion (left side in the example shown in FIG. 2) of the medal payout device 33 in the cabinet 1a.

  In addition, a sub-board 32 constituting a sub-control circuit is provided in an upper portion of the display window 4 in the rear side portion (the portion opposite to the display screen side) of the front door 1b. The sub-control circuit is a circuit that controls execution of effects by displaying images.

  Further, a selector 35 is provided in a lower part of the arrangement area of the display window 4 on the back side of the front door 1b. The selector 35 is a device for selecting whether or not the material or shape of the medal inserted from the outside through the medal insertion slot 11 is appropriate, and guides the medal determined to be appropriate to the medal payout device 33. To do. Although not shown in FIG. 2, a medal sensor that detects that an appropriate medal has passed is provided on the path through which the medal passes in the selector 35.

<Manufacturing method of game machine and paint peeling method>
Next, a manufacturing method and a paint peeling method when reusing the pachislot machine 1 (game machine) of the present embodiment will be described. Before that, first, the configuration of the cabinet 1a of the pachislot machine 1 and the reuse of the cabinet 1a are described. A general method will be described.

  The cabinet 1a of this embodiment is produced by performing a coating process on the surface of a steel plate made of a metal material suitable for sheet metal processing. Specifically, in this embodiment, the cabinet 1a is produced by applying powder coating on a galvanized film of a steel plate (galvanized steel plate) whose surface is galvanized (rust-proofing). . Therefore, the cabinet 1a has a steel plate as its main body, a galvanized film formed on the steel plate, and a paint film formed on the galvanized film.

  When the cabinet 1a having the above-described configuration is reused, generally, for example, the following two methods are employed.

  The first reuse technique is a technique in which the cabinet 1a is reused by performing a repainting process on the paint film without peeling off the paint film. When this method is adopted, the number of reuses is usually about twice. If the reuse is performed three times by this method, the coating film becomes thick and it is difficult to screw the cabinet 1a. Therefore, after the cabinet 1a is reused twice, the cabinet 1a is usually discarded.

  The second reuse technique is a technique in which the coating film and the galvanized film are peeled off from the steel sheet with a chemical, and then the galvanizing process and the coating process are performed on the steel sheet in this order to reuse the cabinet 1a. In this method, for example, the coating film and the galvanized film are removed using a strong alkaline galvanizing release agent.

  However, the former method has a problem that the number of times of reuse is small, and the latter method has a problem that it is necessary to perform galvanization again at the time of reuse. Therefore, the present embodiment proposes a method that can solve these problems and can reuse the cabinet 1a at a lower cost.

[Manufacturing method of gaming machines]
Here, with reference to FIG. 3, a reuse method of the pachislot machine 1 according to the present embodiment, that is, a paint peeling method of the cabinet 1 a and a manufacturing method of the pachislot machine 1 including the same will be described. FIG. 3 is a flowchart showing the procedure of the manufacturing method of the pachislot 1 when the pachislot 1 is reused.

  First, a cabinet 1a to be reused is prepared (S1). Specifically, the front door 1b is removed from the collected cabinet 1a of the pachislot machine 1 to prepare a reused cabinet 1a. Note that the cabinet 1a prepared in S1 may be a cabinet 1a that is reused for the first time, or may be a cabinet 1a that has been reused a plurality of times using the reuse method of the present embodiment.

  Further, the cabinet 1a prepared in S1 may be a cabinet 1a in which a repainting process is performed on the coating film by the above-described general first reuse method. In this case, the cabinet 1a prepared in S1 may be a cabinet 1a that has been reused (repainted) once by the first reuse technique, or a cabinet that has been reused twice. It may be 1a. That is, the reuse technique of the present embodiment may be combined with the above-described general first reuse technique. Such a combination of reuse methods can be appropriately selected in consideration of, for example, cost.

  Next, a coating peeling treatment is performed on the cabinet 1a using a weak alkaline and non-methicy peeling solution (S2). Specifically, first, the prepared cabinet 1a is placed in a predetermined basket. Next, a basket containing the cabinet 1a is immersed for a predetermined time in a peeling tank into which a so-called non-methichroic type coating release agent that does not contain a chlorine-based solvent is introduced and the release liquid is adjusted to a predetermined temperature. Remove the paint film.

  At this time, as the coating release agent, a weak alkaline release agent such as an alumite plating release agent, which is not used in the above-described general second reuse method, is used. In S2, the coating remover is diluted and used so that the hydrogen ion index (hereinafter referred to as “pH”) of the stripping solution in the stripping tank becomes a value at which the coating film can be stripped. The concentration of the coating release agent in the inside is set as appropriate. Specifically, the concentration of the coating stripper (dilution ratio) so that the pH of the stripping solution in the stripping tank is, for example, in the range of about 11.3 ± 10% (about 10.17-12.43). Adjust as appropriate.

  That is, the weakly alkaline stripping solution here is a stripping solution whose pH is in the above range quantitatively, and qualitatively strips (dissolves) the coating film of the cabinet 1a. And a stripping solution having an alkalinity that does not affect the galvanized film, such as dissolution, as will be described later. In addition, when the pH of the stock solution of the coating release agent is a release agent exhibiting a value in the above range, the stock solution may be used as it is without being diluted.

  Moreover, although the liquid temperature in the peeling tank in S2 changes according to the coating peeling agent to be used, it is suitably set, for example in the range of about 70 to 90 degreeC. Furthermore, the peeling time of the coating film in S2 is appropriately set according to conditions such as the coating peeling agent to be used, the liquid temperature in the peeling tank, and the thickness of the coating film.

  As in this embodiment, when a weak alkaline and non-methichroic stripping solution is used in the coating stripping process of S2, not only can the coating film be stripped, but also galvanized, as shown in the examples below. Does not affect the galvanized film of the steel sheet. That is, in this embodiment, a galvanized film can be left on the surface of the galvanized steel sheet in S2.

  Next, after the coating film is peeled off by S2, the cabinet 1a from which the coating film is peeled is washed with water (S3). In addition, this water washing process can be performed similarly to the general water washing process performed by the conventional paint peeling process.

  Next, the water-washed cabinet 1a is immersed for a predetermined time in a rinsing tank in which a predetermined rinsing liquid (rust preventive agent) is charged and adjusted to a predetermined liquid temperature (S4). In addition, the conditions (liquid temperature, immersion time, etc.) of the rinse process of the cabinet 1a are suitably set according to the rinse liquid to be used. Thereafter, the cabinet 1a is removed from the rinse tank and dried.

  Next, a repainting process is performed on the cabinet 1a subjected to the rinsing process (S5), and a coating film is formed on the galvanized film. In addition, although arbitrary methods can be used as a method of the coating process in S5, it is preferable to use a powder coating method in this embodiment. The powder coating method is a method of painting by applying powdered paint to the surface of the object to be coated with pressurized air, and does not use a catalyst such as an organic solvent in the paint. It is.

  After S5, the pachi-slot 1 is assembled again using the repainted cabinet 1a (S6). In the present embodiment, the pachislot 1 is manufactured as described above when the pachislot 1 is reused.

<Example of evaluation of peeling properties>
[Example]
Next, a description will be given of the coating peeling treatment (Example) of the pachislot cabinet actually performed and the measurement results of the peeling characteristics of the coating film in the treatment. Normally, when a coating film is formed on the galvanized surface, chemical conversion treatment such as zinc phosphate treatment is performed on the galvanized surface. In the examples, a coating peeling treatment was performed on a cabinet manufactured using a galvanized steel sheet in which a zinc phosphate treatment was applied to a galvanized film of the steel sheet.

  In the examples, a non-methichro type paint release agent PK-RS580A (manufactured by Parker Corporation) was used as the paint release agent. This non-methichroic paint release agent PK-RS580A is a light yellow transparent liquid chemical that does not have flammability, and the pH of the stock solution is 11.3. Further, when the non-methichroic type paint release agent PK-RS580A is used as the paint release agent, the release form of the paint film is dissolution and film removal.

  In the cabinet paint stripping method of the example, first, the stock solution of the non-methichro type paint stripper PK-RS580A was filled in the stripping tank without dilution. That is, in the examples, the pH of the stripping solution in the stripping tank was set to 11.3. Next, the cabinet was immersed in a peeling tank filled with a weak alkaline and non-methichroic peeling solution, and the coating film was peeled off. At this time, the liquid temperature in the peeling tank was set to 75 ° C.

  Next, after immersing the cabinet in a stripping solution for 30 minutes, the cabinet was removed from the stripping tank, and the removed cabinet was washed with water (high pressure water washing). And the peeling rate of the paint film of the cabinet washed with water was confirmed visually (measured). Thereafter, the cabinet was again immersed in the stripping solution.

  In the examples, the above-described coating peeling treatment, water washing treatment and peeling rate measurement processing were repeated until the coating film was completely peeled off. That is, in the Examples, the change in the peeling rate every 30 minutes was measured until the coating film was completely peeled.

  Next, after the coating film is completely peeled off, the cabinet washed with water is immersed in a rinse solution containing a rinse agent PK-6000 (manufactured by Parker Corporation) at a concentration of 10%. And let it dry naturally. And after drying, the influence of the said coating peeling process to the zinc plating film (zinc phosphate plating film) of a cabinet and a steel plate was investigated. Specifically, the presence or absence of dissolution of the galvanized film and the presence or absence of rusting of the steel sheet were visually examined.

[Various comparative examples]
Further, in order to compare with the above examples, various coating release agents (Comparative Examples 1 to 3 to be described later) having different properties from the above-described non-methichroic type paint release agent PK-RS580A were used in the same manner as in the above examples. The peeling treatment and peeling characteristics were evaluated.

  In Comparative Example 1, a strong alkaline release agent PK-1076 (manufactured by Parker Corporation) was used as a paint release agent. In Comparative Example 2, a strong alkaline release agent PK-3750 (manufactured by Parker Corporation) was used as the coating release agent. Furthermore, in Comparative Example 3, an alkaline release agent PK-RS550E (manufactured by Parker Corporation) was used as a coating release agent. In addition, when the peeling process of a coating film is performed using the coating release agent of these comparative examples 1-3, the peeling form of a coating film will be melt | dissolved.

  Here, the properties and stripping forms of the stripping solutions used in the above Examples and Comparative Examples 1 to 3 are summarized in Table 1 below. For reference, Table 1 also describes whether each paint remover falls under the Violent Poison Law and the Fire Service Law.

[Evaluation results]
Next, the evaluation result of the peeling characteristic of the coating film of the said Example and Comparative Examples 1-3 is demonstrated. First, the change characteristic of the peeling rate of a coating film is demonstrated, referring FIG. FIG. 4 is a diagram showing a change characteristic of the peeling rate of the coating film with respect to the peeling time in the coating peeling process of the above examples and comparative examples 1 to 3. The horizontal axis of the characteristic shown in FIG. The vertical axis represents the peel rate (%). Also, the characteristics of the black circles in FIG. 4 are the characteristics of the example, the characteristics of the white circles are the characteristics of Comparative Example 1, the characteristics of the white squares are the characteristics of Comparative Example 2, and The characteristics of white triangle marks are the characteristics of Comparative Example 3.

  As is apparent from the evaluation results of FIG. 4, when the coating release agents of Examples, Comparative Examples 1 and 3 were used, the coating film was completely peeled off in a peeling time of 1.5 hours. When the coating release agent of No. 2 was used, it can be seen that the coating film was completely peeled off in a peeling time of 1.0 hour.

  Table 2 below shows the measurement results of the presence or absence of dissolution of the galvanized film (zinc phosphate plated film) of the cabinet and the presence or absence of rusting of the steel sheet after the paint film was completely peeled off. In Table 2, the complete peeling time in each of the examples and comparative examples 1 to 3 is also shown for reference.

  As is clear from the evaluation results in Table 2, in the Examples, after the coating film was completely peeled off, dissolution of the zinc plating film (zinc phosphate plating) and rusting of the cabinet were not observed. That is, in the Example, the influence on the galvanized film and steel plate by the paint peeling treatment was not observed.

  On the other hand, in Comparative Examples 1 to 3, in all cases, after the coating film was completely peeled off, dissolution of the galvanized film (zinc phosphate plating) was observed. In Comparative Examples 1 and 3, the cabinet was rusted. The occurrence of was also observed. That is, in Comparative Examples 1 to 3, the influence on the galvanized film and the steel sheet due to the paint peeling treatment was observed.

  As is clear from the above evaluation results, when a coating peeling treatment is performed on a cabinet using a weakly alkaline and non-methichroic peeling solution as in the examples, the coating film can only be completely peeled off. It was found that the galvanized film was not dissolved and the steel sheet was not rusted. That is, as in the embodiment, when the paint stripping treatment of the cabinet is performed using a weak alkaline and non-methichroic stripping solution, only the coating film can be stripped, and zinc is again applied to the cabinet. It has been found that there is no need to perform plating.

  In addition, although the said Example demonstrated the example which used PK-RS580A (product made from Parker Corporation) as a non-methichro type | mold paint release agent, this invention is not limited to this. As in the above example, in the coating stripping treatment, a weak alkaline and non-methichroic stripping solution can be prepared, and any stripping can be used as long as it is a non-methichroic coating stripper that does not affect the galvanized film and the steel plate. An agent can be used.

  As described above, in the method for manufacturing the pachislot machine 1 according to the present embodiment, a weak alkaline and non-methichroic stripping solution is used when the coating film is stripped (S2 in FIG. 3). Thereby, a coating film can be peeled, without affecting the zinc plating film formed in the surface of the galvanized steel plate of the cabinet 1a (in the state which left the zinc plating film). Therefore, in the present embodiment, when the pachislot 1 is reused, as in the above-described general second reuse technique (a technique in which the paint film and the galvanized film are peeled off with a strong alkaline release agent), There is no need to perform galvanization again. Therefore, in the manufacturing method of the pachislot machine 1 of this embodiment at the time of reuse, the pachislot machine 1 can be reused at a lower cost than the general second reuse technique described above.

  Further, in the above-described general first reuse method (method of repeating repainting), the number of reuses is limited by the number of repaints (thickness of the paint film), but in this embodiment, the paint film is peeled off. Therefore, the cabinet 1a can be repeated and reused until the steel plate (sheet metal) becomes unusable. Therefore, in this embodiment, the manufacturing frequency of a new cabinet can be reduced and the manufacturing cost of a gaming machine can be reduced.

  It should be noted that the reuse cycle of gaming machines such as pachislot machines and pachinko machines is very short (for example, about several months) compared to other gaming machines and workpieces other than gaming machines. Therefore, when the above-described cabinet paint peeling method and gaming machine manufacturing method of the present embodiment are applied to such applications, the above-described reuse cost and manufacturing cost reduction effects are further increased.

  DESCRIPTION OF SYMBOLS 1 ... Pachi slot (game machine), 1a ... Cabinet, 1b ... Front door, 3L ... Left reel, 3C ... Middle reel, 3R ... Right reel, 4 ... Display window, 17L ... Left stop button, 17C ... Middle stop button, 17R ... Right stop button, 31 ... Main board, 32 ... Sub board

Claims (3)

Applying a paint stripping process to a cabinet of a gaming machine housing in which a coating film is formed on a galvanized steel sheet;
Washing the cabinet from which the coating film has been peeled off;
Immersing the rinsed cabinet in a rust preventive agent and rinsing;
Repainting the rinsed cabinet;
In the paint stripping process, the hydrogen ion index is 11.3 and the coating film of the cabinet is stripped using a non-methichroic stripping solution, leaving a galvanized film on the surface of the galvanized steel sheet. A method of manufacturing a gaming machine. The method for manufacturing a gaming machine according to claim 1, wherein the cabinet is immersed in the stripping solution at a predetermined temperature for a predetermined time in the paint stripping process. Including applying a paint peeling treatment to a cabinet of a gaming machine housing in which a coating film is formed on a galvanized steel sheet,
In the paint stripping process, the hydrogen ion index is 11.3 and the coating film of the cabinet is stripped using a non-methichroic stripping solution, leaving a galvanized film on the surface of the galvanized steel sheet. Paint peeling method for gaming machine housing.

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