JP2009183755A - Protection cover body for game board and game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a protection cover body for a game board which has an excellent design, prevents fraudulent acts by using a magnet or the like and facilitates visualization of a game board face. <P>SOLUTION: The protection cover body 71 is a plastic member for covering the front face side of the game board C of a game machine in a see-through manner. The protection cover body 71 includes a bulged part 90 of a curved face shape bulged toward player's side. Bent parts 92, 93, 94 are formed on the bulged part 90. A layer treated for antireflection such as a layer with fine unevenness is provided at least on the player's side face 90a of the bulged part 90. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a protective cover body that covers a gaming board of a gaming machine represented by a pachinko machine and the like, and a gaming machine including such a protective cover body.

  In this type of gaming machine represented by a pachinko machine or an arrangement ball machine, a gaming board, a front frame, upper and lower ball receiving trays, a ball hitting device, a backside mechanism setting board, etc. that constitute a gaming area on the front surface of the outer frame opening The middle frame in which many game components are installed is assembled so as to be openable and detachable, and is configured as a unit. The front frame in such a gaming machine is provided with a metal and substantially square glass frame (also referred to as a support frame), and inside and outside glass plates are inserted as protective cover bodies into the glass frame. Yes. As a result, the range of movement of the game ball is limited to the space between the game board and the inner glass plate to prevent the game ball from jumping outward, and illegal acts such as inserting a wire or thin plate by the player Prevention is intended. In addition, it has been conventionally proposed to use a plastic transparent plate as a protective cover other than a glass plate.

  By the way, there are many opinions that this type of protective cover body usually lacks a three-dimensional effect and feels unsatisfactory in design because the perspective surface is formed in a substantially flat shape. In addition, in such a protective cover body, it is possible to prevent fraud by inserting foreign objects to a certain extent, but since the distance from the game board is narrow, fraud using strong magnets etc. There was a drawback that it could not be effectively prevented.

  Therefore, conventionally, a technical idea has been proposed in which a bulging portion having a curved shape that bulges toward the player side is provided on the protective cover body, thereby providing a three-dimensional effect as a whole and keeping the game board away from the player. (For example, refer to Patent Document 1). According to this configuration, it is considered that not only an improvement in design can be achieved, but also the prevention of illegal acts on the game ball by the magnet can be achieved.

JP 2001-259194 A

By the way, pachinko halls where gaming machines are installed are usually provided with a large number of lighting devices at various positions, and the lighting environment varies depending on the hall. Therefore, when a gaming machine is used in such an environment, the protective cover body reflects the external light entering from various angles with respect to the game board. External light is reflected on the game board, making it very difficult to see the game board. For this reason, there is a disadvantage that the player is less likely to concentrate on the game itself, or that his / her eyes are tired and long-time game becomes difficult. Such a phenomenon of reflection of ambient ambient light is not a significant problem with a substantially flat protective cover body, and becomes very prominent in a curved protective cover body having a bulging portion.
Further, the protective cover body (closed window body in this publication) specifically disclosed in Japanese Patent Application Laid-Open No. 2001-259194 is a simple curved surface having a substantially domed shape with a bulging portion protruding toward the player side. It only has a shape. Therefore, there is a demand for the appearance of a protective cover body having a better design than this. Further, the protective cover body of the above-mentioned publication has a drawback that no measures are taken for the phenomenon of reflection of external light, and the game board surface is very difficult to see.

  The present invention has been made in view of the above problems, and its purpose is a gaming board that is excellent in design, can prevent fraud using a magnet or the like, and can make the gaming board surface easier to see. An object of the present invention is to provide a protective cover body and a gaming machine.

  In order to solve the above problems, the invention described in claim 1 is a plastic protective cover body that covers the front side of the gaming board in a gaming machine in a state where it can be seen through, and is a curved surface that swells toward the player side. A gist of a protective cover body for a game board having a bulge portion having a shape and having an anti-reflection treatment layer (a layer subjected to so-called non-glare treatment) on at least a player side surface of the bulge portion. To do.

  Therefore, according to the first aspect of the present invention, a protective cover body having a curved bulging portion that bulges on the player side provides a three-dimensional effect compared to a conventional protective cover body that is substantially flat. And a gaming machine with excellent design can be realized. Further, in the case of a protective cover body having a bulging portion of the above shape, since the distance from the protective cover body to the game board is larger than that of a conventional protective cover body having no bulging portion, it is substantially from the player. A game board can be kept away. Therefore, even if a strong magnet is brought close to the player side of the bulging portion, the influence of the magnetic force does not reach the game board surface, and an illegal act against the game ball is not established. In addition, since the anti-reflection treatment layer is provided on at least the player's side of the bulge, reflection of external light entering from various angles is prevented, and external light is reflected on the player's side of the bulge. It becomes difficult to get in.

  In addition, since plastic is originally a material excellent in processability, even if it is a protective cover body having a complicated shape, it can be manufactured relatively easily and at low cost. Furthermore, the protective cover body made of plastic is not only lighter than that made of glass, but also has an advantage that it is very hard to break and is safe.

  The gist of the second aspect of the present invention is that, in the first aspect, the bulging portion further includes a bent portion. The term “bent part” as used herein means a part composed of a curved surface with a portion having a large curvature because it is configured to include a ridge line, and a simple curved surface configured without including a ridge line and having substantially the same curvature. It shall be distinguished from a curved portion consisting of only a part.

  Therefore, according to the second aspect of the present invention, the shape becomes complicated compared to the protective cover body having a simple curved bulge portion that does not have any bent portion, so that the three-dimensional effect is increased and the design is further improved. improves. Therefore, it is possible to give the protective cover body an excellent aesthetic that has never been seen before. Furthermore, when the gaming machine is a ball and ball game machine such as a pachinko machine, the nail looks different from the original state due to the presence of the bulging part and the bending part. It is possible to provide a game machine that can be captured and armed.

  The invention according to claim 3 is the invention according to claim 2, comprising a mountain-shaped bent portion that is convex on the player side and a valley-shaped bent portion that is concave on the player side, and the two bent portions are adjacent to each other. The gist is that it is extended in a state.

  Therefore, according to the third aspect of the invention, the shape of the protective cover body is further complicated, so that the design is further improved. Therefore, it is possible to give the protective cover body a novel and excellent aesthetic that has never been seen before.

  The above-described mountain-shaped bent portion and valley-shaped bent portion may be provided corresponding to a place where the symbol display portion is present in the game area of the game board (generally, generally the central portion), or the symbol display. It may be provided corresponding to a place other than the place where the part is. In other words, the above-described mountain-shaped bent portion and valley-shaped bent portion may be provided in a portion located in front of the symbol display portion in the bulging portion when the protective cover body is mounted, or the portions. May be provided.

  In particular, when the latter configuration is adopted, the components (for example, the symbol display unit) and the pattern on the back of the game board appear to be close to the original appearance in the portion directly related to the game. On the other hand, in parts that are not directly related to the game (for example, corner decorations), the components and patterns on the back of the game board look quite different from the original appearance, and if the bending angle increases, it is usually It becomes difficult to see there. Accordingly, a portion that is not directly related to the game is less likely to be noticed, whereas a portion that is directly related to the game is easily noticeable, so that the player can concentrate more on the game.

  In the case where there is a symbol display portion at the center of the game board, the above-described mountain-shaped bent portion and valley-shaped bent portion are provided on the side of the symbol display portion, and the length thereof is at least from the upper end position of the symbol display portion. It may be set so as to correspond to the length to the lower end position. This is because such a configuration allows the player to concentrate more on the game.

  The mountain-shaped bent portion and the valley-shaped bent portion are preferably provided corresponding to the left and right side portions of the game board. In other words, when the protective cover body is mounted, the mountain-shaped bent portion and the valley-shaped bent portion described above are a portion located in front of the left and right side of the lighting device or a portion closer to the center than the bulging portion. May be provided. The mountain-shaped bent portion and the valley-shaped bent portion may be provided corresponding to either the left side portion or the right side portion of the game board.

  In any case, according to such a configuration, the traveling direction of light emitted from the lighting device changes when passing through the mountain-shaped bent portion and the valley-shaped bent portion. It looks quite different from the aspect. For this reason, even if it is a case where the illumination device of a simple light emission aspect is used, it is possible to acquire the further decorative effect that it can look gorgeous and beautiful. That is, as a result of improving the dynamic design, the aesthetics of the gaming machine is improved. In addition, even when a simple and inexpensive electrical decoration device is used, the maximum decorative effect can be obtained, so that the cost of the gaming machine itself can be reduced.

  The mountain-shaped bent portion and the valley-shaped bent portion may be formed so as to have a left-right asymmetric shape when viewed from the front, or may be formed so as to have a substantially symmetrical shape when viewed from the front. . In particular, the latter configuration is designed to give a sense of stability and security compared to the case of adopting an asymmetrical shape, so that the consciousness does not turn to the mountain-shaped and valley-shaped bent portions. The player can concentrate more on the game.

  The shape of the bulging portion in front view is preferably substantially circular, and in this case, the above-described mountain-shaped bent portion and valley-shaped bent portion are shaped along the outline of the bulged portion, for example, an arc shape. It is good that it is formed. Similarly, this design also gives a sense of stability and security, so that the player can concentrate more on the game without being conscious of the mountain-shaped and valley-shaped bent portions. become. In addition, the design is improved in that sense because it has a dynamic design that makes it possible to imagine the trajectory until the launched game ball reaches the game area.

  The gist of a fourth aspect of the present invention is that, in any one of the first to third aspects, the antireflection treatment layer is a minute uneven layer.

  Therefore, with such a configuration, the external light is scattered by minute unevenness, so that the reflection of the external light is prevented. As a result, the external light is less likely to be reflected on the player side surface of the bulging portion. Further, if minute irregularities are formed on the player side surface, the friction coefficient of the surface increases. Therefore, even if the player tries to slide by bringing the magnet into contact with the side of the player in order to guide the game ball, there is a further effect that the magnet does not slide well and it is difficult to perform fraud.

  In this case, the minute unevenness may be directly formed on the bulging part itself by partially removing the surface of the bulging part or processing the surface of the bulging part itself into an unevenness. Good.

  Therefore, according to this, unlike the case where the minute unevenness is not directly formed on the bulging portion itself, there is no work such as pasting of the other member having the minute unevenness. There is no worry about accidental dropout. Therefore, as a result of maintaining minute irregularities in a suitable state over a long period of time, an antireflection effect can be obtained semi-permanently. Further, since the number of parts constituting the protective cover body does not increase, complication of the configuration of the protective cover body itself can be avoided.

  The minute unevenness may be formed, for example, by abrasive grain injection processing on the surface of the bulging portion.

  Therefore, according to this, by hitting the sprayed abrasive grains against the protective cover body, the surface of the bulging portion is partially removed or processed into irregularities, so that minute irregularities are directly formed on the bulging portion itself. In addition, according to such a processing method, the minute unevenness | corrugation suitable for reflection prevention can be formed comparatively easily and comparatively cheaply with respect to the plastic material surface. Moreover, the light transmittance can be easily set to a desired value by adjusting the size of the minute unevenness.

  In this case, the abrasive grain injection processing is preferably performed by a dry method. In the case of a dry method, unlike the case where it is performed in a wet manner, a liquid is not required, so that a simple process is required and the environment is advantageous.

  The minute irregularities may be formed by coating a minute powder on the surface of the bulging portion.

  Therefore, according to this, fine powder adheres to the surface of the bulging portion through the coating process, and thus fine irregularities suitable for antireflection are formed there. In addition, according to such a processing method, the light transmittance can be easily set to a desired value by adjusting the size of the fine powder to be used.

  Further, the antireflection treatment layer may be a film having minute irregularities attached to at least a player side surface of the bulging portion.

  Therefore, according to this configuration, the antireflection effect can be easily imparted to the protective cover body simply by attaching a film having minute irregularities. In addition, with this configuration, it is possible to select a film having properties suitable for the environment of the game hall (for example, the intensity of lighting of the game hall, the installation mode, etc.). Note that even if the player tries to slide by bringing a magnet into contact with the side of the player in order to guide the game ball, minute irregularities exist on the film surface. Therefore, there is a further effect that the slipping of the magnet becomes worse and it is difficult to perform an illegal act.

  In this case, the film may be attached in a peelable state. The reason is that the protective cover body can be used with the film peeled off if no anti-reflection measures are required from the lighting environment of a game hall such as a pachinko hall. Also, since the player side of the protective cover body in a gaming machine is generally placed in an environment that is easily exposed to cigarette smoke, the player side is likely to be clouded by dust, etc., and the light transmittance of the protective cover body is also good. The situation is likely to decline. In that respect, according to the said structure, it is possible to peel a film from the cloudy protective cover body, and to replace | exchange for a new thing. Therefore, there is an advantage that the maintenance cost is not required as compared with the structure in which the entire protective cover body must be replaced.

  4. The antireflection treatment layer according to any one of claims 1 to 3, wherein the antireflection treatment layer may be an interference layer that cancels external light using light interference.

  Therefore, according to this configuration, by setting the thickness of the interference layer to a predetermined value, the phase of the light reflected by the surface of the interference layer is reflected by the player side surface of the protective cover body through the interference layer. The phase of the emitted light can be reversed. In this case, as a result of the two lights canceling each other and interfering with each other, the reflected outside light becomes inconspicuous, and the outside light is hardly reflected on the player side surface of the bulging portion. In addition, since it does not attempt to prevent reflection by scattering light due to the formation of minute irregularities, it has almost no reduction in light transmission and is as excellent as a state where no antireflection treatment is applied. The board visibility can be maintained.

  The gist of a fifth aspect of the present invention is a gaming machine including the protective cover body according to any one of the first to fourth aspects.

  Therefore, according to the invention described in claim 5, it is possible to provide a gaming machine that exhibits the operational effects described in any one of claims 1 to 4.

  As described above in detail, according to the first aspect of the present invention, the gaming board is excellent in design, can prevent fraud using a magnet or the like, and can make the gaming board surface easy to see. A protective cover body can be provided. According to the second aspect of the present invention, as a result of further improving the design, it is possible to impart an unprecedented excellent aesthetic appearance to the protective cover body. According to the invention described in claim 3, as a result of further improving the design, it is possible to impart a novel and excellent aesthetic appearance to the protective cover body as never before. According to the invention described in claim 4, not only can the anti-reflection effect be easily imparted to the protective cover body, but also a more reliable prevention of fraud can be achieved. According to the fifth aspect of the present invention, it is possible to provide a gaming machine that is excellent in design, can prevent an illegal act using a magnet or the like, and can make the gaming board surface easy to see.

The schematic front view which shows the pachinko machine (state without a protective cover body) of embodiment which actualized the game machine of this invention. The schematic front view which shows the inner frame and holding frame of the pachinko machine. The partially broken schematic front view which shows the frame main body of the front frame of the pachinko machine. The schematic rear view which shows the front frame of the pachinko machine. FIG. 2 is a partially omitted side sectional view taken along line aa in FIG. 1. The partial omission side sectional view showing the open state of the front frame with respect to the middle frame of the pachinko machine, the open / close connection support part and the like. The partial omission plane sectional view which shows the open state of the front frame with respect to the inner frame of the pachinko machine, the open / close connection support part, and the like. The partial omission plane sectional view which shows the outline | summary of the opening-and-closing holding mechanism of the pachinko machine. The disassembled perspective view which shows the connection part and opening-and-closing connection support tool of the support frame of the pachinko machine. (A) is a front view which shows the protective cover body of the pachinko machine, (b) is the bottom view. (A) is a side view which shows the said protective cover body, (b) is a side view which shows the front frame to which the protective cover body was attached. The schematic front view which shows the pachinko machine (state with a protective cover body). The schematic front view which shows the state which attached the protective cover body of another example. (A) is a front view which shows the protective cover body of another example, (b) is the bottom view.

Hereinafter, a pachinko machine according to an embodiment of the present invention will be described in detail with reference to FIGS. In this embodiment, “left” or “right” indicates “left” or “right” when viewed from the front side (front side) of the pachinko machine. First, a basic configuration of the pachinko machine according to the present embodiment will be described.
As schematically shown in FIG. 1, this pachinko machine includes a vertical rectangular outer frame A that forms an outline of the airframe. On the front side of the opening of the outer frame A, a vertical rectangular middle frame B for setting various game components is assembled so as to be openable and detachable. On the front side of the middle frame B, a front frame D which is a transparent protective window for the game board C and an upper ball receiving plate E are opened and closed in a laterally open manner using individual connection support means. It is assembled as possible. On the other hand, in the lower part of the middle frame B, a lower ball receiving tray F, a hitting ball launching device G, and the like are set. Also, on the back side of the middle frame B, a mechanism set board (not shown) provided with various ball paths and ball processing / dispensing sections is set. In the figure, H indicates a card unit used in the ball lending system.

  The middle frame B, which is the mounting frame of the pachinko machine of the present embodiment, is entirely formed using a synthetic resin material. As shown in FIG. 2, the middle frame B is basically formed by connecting the frame body 2 and the holding frame 4 for holding the game board set back and forth, and is configured as a so-called inner / outer double frame form. Has been. The frame body 2 is formed in an outer size suitable for the opening front area of the outer frame A, and has a vertical rectangular window frame opening 1. The holding frame 4 is integrally formed on the back side of the frame body 2 and has a set port 3 that faces the front inside of the window frame port 1.

  An installation board 5 for installing the lower ball receiving tray F, the hitting ball portion G2 of the hitting ball launching device G, and the like is formed at the lower part of the window frame mouth 1 in the frame 2. A supply port 6 for prize balls is formed at the center of the installation board 5.

  A locking device 7 is provided at the right edge of the window frame mouth 1. A detection switch 8 for detecting the open / closed state of the front frame D is provided at the corner formed by the right edge and the upper edge of the window frame opening 1. On the other hand, in the holding frame 4 shown in FIG. 2, a game auxiliary board 9 is integrally formed at a position inside the lower part of the window frame mouth 1. The set opening 3 is formed with reference to the upper edge of the game auxiliary board 9 as a reference. The game assisting board 9 is formed with a ball outlet 10 for award balls and the like, and a ball receiving case 12 with a built-in speaker 11, a firing rail 13 and the like are set therein.

  As shown in FIG. 2, ribs 30 are extended on the front surface (upper edge portion, right edge portion, and left edge portion) of the frame body 2. During assembly and alignment, these ribs 30 mesh with grooves (not shown) formed opposite to the front frame D and the back side of the upper ball tray E to form a labyrinth structure. Similarly, a groove 31 is extended at the boundary between the installation board 5 and the game auxiliary board 9 in the middle frame B. At the time of assembly alignment, the lower edge of the upper ball tray E meshes with the groove 31. As a result of the above, fraudulent acts due to intrusion of foreign matter (such as a wire) from the front side of the machine base are prevented.

  The window frame port 1 in the middle frame B also has a role as a set surface area and a loading / unloading port of the game board C that is taken in and out (detached) from the front side. For this reason, the window frame mouth 1 can set the upper ball tray E according to the lower opening surface area. As shown in FIG. 2, the entire front surface of the three peripheral edges (upper edge and left and right side edges) of the window frame mouth 1 on the front side of the opening is a set surface area 14 that can accommodate and accommodate the front frame D. ing. On the other hand, an engagement portion 15 for the game board C is formed at four corners of the inner periphery of the set port 3 of the holding frame 4. In these engaging portions 15, a rotary locking device (see Japanese Patent Application No. 3-157875) not shown is set. In assembling the middle frame B to the outer frame A, conventionally known opening / closing support means disposed on the upper left side and the lower side of the front frame, and the locking device 7 mounted on the right side edge, respectively. Used. As a result, the middle frame B is assembled in a state that can be opened and closed in the left-right direction and detachable in the up-down direction.

  The front frame D assembled to the middle frame B described above has a laterally open shape and is made of a synthetic resin unlike a conventional metal window frame. Basically, the front frame D is mainly composed of a frame main body 24 for a door frame and a support frame 25 for supporting glass. The frame main body 24 has a rectangular shape with an outer size matching the set surface area 14, and has a window 23 at the center thereof. The window 23 has a substantially circular shape with a size suitable for the game area of the game board C. On the surface of the frame main body 24, a resin film-like decorative film on which a required color, design, or the like is printed can be attached in order to achieve a decorative effect. On the upper part of the frame body 24, an electrical decoration display part 86 for displaying the game operating state is disposed.

  The support frame 25 is assembled to the inside of the frame body 24 (the back side of the window 23) in a detachable and tiltable state. One glass plate 26 that is a rectangular transparent plate and a protective cover body 71 described later can be inserted into the support frame 25. The front frame D is assembled to the middle frame B in an openable and detachable state.

  When assembling the frame main body 24 of the front frame D to the middle frame B, use is made of support means 32, 33 for opening / closing attachment / detachment provided at the upper and lower portions of the front left edge, and a locking part installed on the right edge. Is done.

  That is, as shown in FIGS. 4, 6, 8, etc., in the upper support means 32, the shaft hole of the support piece 34 provided at the upper left end portion of the frame body 2 of the middle frame B and the front frame D A support shaft 36 of an upper opening / closing connection support 35 provided at the upper left corner of the frame body 24 is fitted and connected. Further, in the lower support means 33, a support shaft that protrudes from a support piece 37 provided in the left middle step portion of the frame body 2 and a lower opening / closing connection support tool 38 provided in the lower left corner portion of the frame body 24. The shaft hole 39 is inserted and connected. As a result, the frame main body 24 is supported so as to be turnable and detachable to the left and right with respect to the frame body 2.

  In addition, as shown in FIG. 4 and the like, in the locking part, the engaging part of the locking receiver 40 fixed up and down on the back side of the right edge of the frame main body 24 can be engaged with and disengaged from an unillustrated elevating locking bar in the locking device 7. Engage with. And by this engagement, the frame main body 24 of the front frame D is locked in the closed state.

  As shown in FIGS. 4 and 9, the upper opening / closing connection support 35 has a support body 41 formed of a metal plate as a material, screwed to the upper left corner of the back side of the frame body 24. A shaft tube portion 42 for inserting and supporting the support shaft 36 is formed on the upper portion of the support body 41. A support shaft (pin) 43 corresponding to the shaft hole 59 a of the support piece 59 in the support frame 25 is formed as a receiving portion in the lower portion of the support tool body 41.

  Further, as shown in FIGS. 4 and 6, the support frame 25 assembled on the back side of the frame body 24 is made up of upper and lower and left frame rods 49 and 50 and a right reinforcing support rod 51. It is configured by connecting in a square frame shape. As shown in FIG. 5, the upper and lower frame rods 49 and the left frame rod 50 have two rows of insertion grooves 48 inside thereof, and are formed in a rail frame shape. When the reinforcing support 51 side of the support frame 25 (that is, the right end side of the two rows of insertion grooves 48) is opened, an insertion portion is formed, and the glass plate 26 and the like can be inserted through this insertion portion. Further, the opening surface (the glass see-through surface) formed by the frame rods 49 and 50 and the reinforcing support 51 is formed to be appropriately wider than the window 23 of the frame main body 24.

  When the support frame 25 is assembled to the frame body 24, an opening / closing support means 57 disposed on the upper left and lower sides and an opening / closing holding mechanism 58 installed on the upper right side are used. The That is, in the support means 57 shown in FIG. 9, a pair of upper and lower support pieces 59 and 60 are projected in the horizontal direction at a substantially intermediate position in the longitudinal direction on the outer surface of the left frame rod 50. The support pieces 59 and 60 are formed with shaft holes 59a and 60a corresponding to the support shafts 43 and 47 of the upper and lower support body bodies 41 and 45, respectively. The support shafts 43 and 47 are fitted into the shaft holes 59a and 60a of the support pieces 59 and 60, respectively. As a result, the support frame 25 is supported on the back side of the frame main body 24 via the open / close coupling supports 35 and 38. In such a support state, the support frame 25 can be tilted sideways and back and forth, and can be attached and detached while being shifted in the vertical direction.

  As shown in FIGS. 4 and 8, the open / close holding mechanism 58 allows tilting guidance and opening restriction of the support frame 25 between the upper right side of the frame body 24 and the right end of the support frame 25. Tilt restricting means 61 is arranged.

  That is, a support member 62 is fixed to the upper right part on the back side of the frame main body 24, and a base end portion of a movable restricting member 63 made of a metal material is supported on the support member 62 so as to be horizontally rotatable. An operation piece 63a erected upward is bent at the distal end portion of the movable restricting member 63, and a long groove 64 as a restricting guide portion is notched. A pin 65 protruding from the right end of the upper frame collar 49 in the support frame 25 is fitted into the long groove 64.

  Then, when the operation piece 63 a is picked up with the fingertip and the movable restricting member 63 is swung in the front-rear direction, the pin 65 is guided while sliding along the long groove 64. As a result, the support frame 25 moves between the closed set position and the open support position shown in FIG. Note that the support frame 25 can be inserted into and removed from the insertion groove 48 at the open support position. On the other hand, in the closed set position, the support frame 25 is in a state of being parallel and superimposed on the frame body 24, and the glass plate 26 and the protective cover body 71 cannot be inserted and removed.

  The open / close holding mechanism 58 includes a locking means 66 as shown in FIG. 8 as means for holding the support frame 25 in the closed set position. The locking means 66 is installed at a position between the right back side of the frame body 24 and the right side of the support frame 25.

  That is, a hook 67 made of an elastic material such as synthetic resin is provided at the right end of the support member 62. The hook 67 can be elastically locked to the pin 65. Similarly, a hook 68 having the same shape as the hook 67 is provided on the lower right side on the back side of the frame body 24 (see FIGS. 7 and 8). Corresponding to the hook 68, a pin 69 is provided at the lower end of the reinforcing support 51 of the support frame 25. Therefore, when the support frame 25 is rotationally displaced from the open support position side to the closed set position side, the pins 65 and 69 and the hooks 67 and 68 are locked with each other. As a result, the support frame 25 is held in the closed set position.

  In the pachinko machine configured as described above, the front frame D, the upper and lower ball receiving trays E and F, the hitting ball launcher G, the game board C, and various accessory parts are used for the middle frame B with respect to the outer frame A. Constituent members are set and configured as a unit. And, by attaching the entire middle frame B to the outer frame A arranged in a predetermined tilted upright posture on the installation frame base in the pachinko hall, as a vertical ball game machine similar to a conventional pachinko machine It is used for games. Under this condition, a normal ball hitting operation is performed, whereby the game balls in the upper ball receiving tray E are sent one by one to the launch rail 13 and appropriately shot from the ball hitting device G to be played in the game board C. Can be expanded.

  Next, the configuration and the like of the protective cover 71 that is a characteristic configuration of the present embodiment will be described in detail.

  The plastic protective cover body 71 shown in FIGS. 10 and 11 is disposed to cover the front side of the game area on the game board C in a state where it can be seen through. Here, the layout in the game board C will be briefly described.

  The substantially circular game area in the game board C illustrated in FIG. 1 is partially surrounded by rails 72 that are curved in an arc shape. This game board C includes a start winning tool 73, a symbol variable display device 74 as a symbol display unit, a large decorative part 75, an electric decoration guide car 76, an ordinary guide car 77, a large electric winning device 78, and an electric decoration device 79. Etc. are provided on the front side. Note that nails (not shown) are driven on the front side of the game board C over almost the entire game area.

  The start winning tool 73 is disposed at a position closer to the lower part of the center of the game area. A start switch (not shown) disposed in the start winning tool 73 starts operating the variable symbol display device 74 once for each detection of each safe ball in the start winning tool 73.

  The large decorative component 75 is disposed at a position immediately above the start winning device 73 (that is, a position closer to the upper center of the game area). The variable symbol display device 74 is assembled to the large decorative part 75. For example, in the drum-type variable symbol display device 74, the symbol drums of the symbol display units in each row are rotated and stopped according to the start signal input condition generated during the pachinko game so that a predetermined symbol can be stopped and displayed. It is configured. The symbol variable display device 74 may be other than a drum type, for example, a device using a liquid crystal display.

  The electric decoration guide wheel 76 and the ordinary guide wheel 77, which are also called windmills, play a role of arbitrarily changing the flow direction of the game ball, and are usually arranged symmetrically on both sides of the large decorative part 75. It is installed.

  The large electric prize-winning device 78 is disposed immediately below the start prize-winning tool 73. The winning operation condition is given to the winning device 78 as a special gaming state when the symbol variable display device 74 is successful. The winning device 78 has a special winning opening 80 and a door-shaped opening / closing plate 81. The opening / closing plate 81 is configured to change from a normal closed state to an open state based on a set drive condition relating to an electromagnetic solenoid (not shown). A count switch (not shown) for safe balls and a special switch (not shown) for continuing the opening operation are incorporated in the rear side of the special winning opening 80. A normal winning opening 82 is provided on both the left and right sides of the winning device 78. An out port 83 into which an out ball enters is formed at a position immediately below the winning device 78 (that is, near the lowermost part of the center of the game area).

  The lighting device (side lamps) 79 includes a light bulb (not shown) whose irradiation pattern is changed and controlled according to the game state, and is arranged in a pair of vertically long arcs on both the left and right sides of the game area. .

  Among the above-mentioned components provided in the game board C, the start winning tool 73, the symbol variable display device 74, the electrical guide wheel 76, the normal guide wheel 77, the winning device 78, etc., affect the traveling direction of the game ball, The game state is shown to the player. Therefore, it can be said that the aforementioned parts are structures directly related to the game. On the other hand, it can be said that the illumination device 79 and the like are structures that are not directly related to the game.

  As shown in FIG. 10A, the protective cover 71 has a substantially square outer shape when viewed from the front. The protective cover body 71 includes a bulging portion 90 having a curved shape that bulges as a whole on the player side (that is, the front side and the non-game board side). The outer shape / size of the bulging portion 90 is set to be substantially equal to the outer shape / size of the game area of the game board C exposed through the window 23 of the frame body 24. Here, the bulging portion 90 occupies most of the area of the protective cover body 71. Note that the bulging portion 90 shown in FIG. 10A has a substantially circular shape but is not a complete circular shape, and has a shape in which a lower portion thereof is cut out in an arc shape. The reason for providing such a cut-out portion is that when the lower portion of the bulging portion 90 covers the upper ball tray E, it becomes an obstacle to take out the game ball, but if it is cut out, it will be taken out This is because it will not get in the way.

  A region around the bulging portion 90 in the protective cover body 71 (that is, the outer peripheral portion of the protective cover body 71) is a flat portion 91 where there is no large unevenness, and thus the outer periphery of the cover is linear. Accordingly, when the protective cover body 71 is attached, the cover outer edge portion can be easily inserted into the insertion grooves 48 of the frame rods 49 and 50 of the support frame 25.

  As shown in FIGS. 10A, 10B, and 11A, the bulging portion 90 of the protective cover body 71 is not a simple shape, and further includes bent portions 92, 93, and 94. It has a complicated shape. That is, the bulging portion 90 includes mountain-shaped bent portions 92 and 94 that are convex on the player side, and a valley-shaped bent portion 93 that is concave on the player side. However, the bending portions 92 and 93 have a slightly larger bending angle than the bending portion 94.

  The mountain-shaped bent portion 94 is provided in a straight line so as to extend in the longitudinal direction of the cover at the central portion of the protective cover body 71. In addition, the cover center part (especially cover center part) in which the mountain-shaped bending part 94 is provided is set so that the bulging amount becomes the largest in the bulging part 90. Here, the bulging amount refers to a height when the front side surface of the flat portion 91 is used as a reference.

  One mountain-shaped bent portion 92 and one valley-shaped bent portion 93 are arranged so as to be adjacent to each other so as to form one set and extend in the longitudinal direction of the cover. Such mountain-shaped bent portions 92 and valley-shaped bent portions 93 are formed in a gentle curve so as to have a shape along the left and right outlines of the bulging portion 90, that is, a substantially arc shape that swells in the left-right direction. ing. The mountain-shaped bent portion 92 and the valley-shaped bent portion 93 are continuously formed from the upper end to the lower end of the bulging portion 90, and the interval between the two bent portions 92, 93 gradually increases from the upper end to the lower end of the bulging portion 90. Is getting bigger.

  The mountain-shaped bent portion 92 and the valley-shaped bent portion 93 are respectively provided on both side portions of the protective cover body 71 so as to be symmetrical in the front view. In other words, the mountain-shaped bent portion 92 and the valley-shaped bent portion 93 are located in front of the electric decoration device 79 on both the left and right sides when the protective cover body 71 is attached, or closer to the center than that. It is provided at the site (see FIG. 12). The lengths of the mountain-shaped bent portion 92 and the valley-shaped bent portion 93 are substantially equal, and are set so as to correspond to the length of at least several times the vertical length of the symbol variable display device 74. Here, the height of the mountain-shaped bent portion 92 is set to about half of the mountain-shaped bent portion 94.

  The protective cover 71 is made of a plastic material having translucency. “Having translucency” does not mean only a completely transparent plastic material, but also includes a slightly colored plastic material if a certain degree of translucency is ensured. Examples of the plastic material suitable for forming the protective cover body 71 include acrylic resin, polyvinyl chloride resin, and polycarbonate resin. In addition, since translucency is a property requested | required only about the bulging part 90, even if it does not have translucency about the flat part 91, there is no problem in particular.

  So-called non-glare processing is applied to the entire player side surface 90a of the protective cover body 71, thereby forming an antireflection processing layer (non-glare processing layer). The non-glare process does not necessarily have to be performed on the entire player side surface 90a. For example, the non-glare process may be performed only on the bulging portion 90 and not on the flat portion 91. Further, the non-glare process does not necessarily have to be performed on the entire area of the bulging portion 90, and may be selectively performed only on a specific region in the bulging portion 90.

  Here, “non-glare processing” refers to processing that reduces the reflection of external ambient light (glare) and glare. In the case of this embodiment, specifically, non-glare processing is performed by forming minute irregularities on the player side surface 90a. “Fine unevenness” refers to unevenness having a size that can effectively scatter visible light, and is usually not more than a millimeter order, and particularly not more than a micron order. This is because if the irregularities become too large, visible light cannot be effectively scattered and the necessary antireflection effect cannot be obtained.

  In this protective cover body 71, minute irregularities are directly formed on the bulging portion 90 itself by partially removing the surface of the player side surface 90a of the bulging portion 90. Here, sandblasting is performed as a specific method. Sand blasting is a processing method in which abrasive particles sprayed with compressed air are applied to the surface of the object to be processed to partially remove the surface or deform into irregularities, and is a kind of dry-type abrasive processing method. In this case, as the abrasive grains (abrasive material), for example, iron grains, glass grains, gold sand and the like are used. The advantage of sandblasting is that it has a wide range of applications. If it is a general plastic material, the fine unevenness | corrugation suitable for reflection prevention can be formed comparatively easily and comparatively cheap if it is a general plastic material. In the present embodiment, the protective cover body 71 is manufactured by performing a blasting process using a sandblasting apparatus after a resin molded product having a predetermined shape is prepared in advance.

  If the light transmittance of the protective cover 71 is not 0%, it can be set to an arbitrary value. For example, it is preferably set to 10% to 100%, preferably 20% to 100%. Is good. This is because the game board surface becomes invisible when the light transmittance is 0%. However, considering the maintenance of the visibility of the game board C, it is desirable that the light transmittance is set as close to 100% as possible.

  In the case of the present embodiment in which sand blasting is adopted as the non-glare process, the light transmittance can be set to a value within the above preferred range relatively easily by adjusting the size of minute irregularities. Specifically, for example, the grain size, hardness, specific gravity, friability, spray amount, spray density, spray speed, etc. of the abrasive grains may be appropriately changed.

  A method of attaching the protective cover 71 configured as described above will be described. First, the operation piece 63a is operated to move the support frame 25 from the closed set position to the open support position. In this state, the outer edge of the cover of the protective cover body 71 against the two rows of the insertion grooves 48 provided in the frame rods 49 and 50 of the support frame 25 are located outside (that is, the front side and the player side). Insert while sliding. In addition, in order to enable the slide insertion work of the protective cover body 71, it is necessary to set the maximum bulge amount of the bulge portion 90 smaller than the opening amount of the support frame 25. The glass plate 26 is slid and inserted as usual into the two rows of insertion grooves 48 provided in the frame rods 49 and 50 of the support frame 25 which are located inside (that is, the back side and the game board side). . After the slide insertion operation, the support frame 25 is moved again to the closed set position, and the pins 65 and 69 and the hooks 67 and 68 are locked. As a result, the attachment of the protective cover body 71 is completed. At this time, when the bulging portion 90 is just fitted into the window 23, the protective cover body 71 cannot be displaced in the direction of its surface.

  Therefore, according to the present embodiment, the following effects can be obtained.

  (1) The protective cover body 71 includes a curved bulging portion 90 that bulges toward the player, and the player side surface 90a of the bulging portion 90 is subjected to non-glare processing. Accordingly, a three-dimensional effect can be obtained compared to a conventional protective cover body that is substantially flat, and a pachinko machine that is excellent in design can be realized.

  In addition, since the distance from the protective cover body 71 to the game board C is larger than that of the conventional protective cover body that does not have the bulging portion 90, the game board C can be substantially moved away from the player. Therefore, even if a strong magnet is brought close to the player side surface 90a of the bulging portion 90, the influence of the magnetic force does not reach the game board surface, and illegal acts against the game ball will not be established.

  Furthermore, when there is such a bulging portion 90, even if an external force is applied to the protective cover body 71 and it should be damaged, there is a certain distance between the bulging portion 90 and the glass plate 26. The breakage of the plate 26 can be prevented. Therefore, it becomes a safe pachinko machine for the player. Similarly, damage to the game board C due to the addition of external force is also prevented.

  (2) In general, pachinko halls where pachinko machines are installed are usually provided with a large number of lighting devices at various positions, and the lighting environment varies depending on the hall. This is a major cause of the problem of reflection of ambient ambient light with respect to the curved protective cover 71 having the bulging portion 90.

  However, in this embodiment, since the non-glare treatment layer is provided on the player side surface 90a of the bulging portion 90, reflection of external light entering from various angles is prevented. Therefore, in spite of having the bulging part 90, it becomes difficult for external light to be reflected on the player side surface 90a, and the game board surface is much easier to see than the conventional product having only the bulging part. As a result, the inconvenience that the player is less likely to concentrate on the game itself and that the game becomes difficult due to tired eyes and a long time.

  (3) The protective cover body 71 is made of plastic. Since plastic is originally a material with excellent processability, even if it is a protective cover body 71 having a complicated shape as in this embodiment, it is relatively easy to manufacture at a low cost by a conventionally known molding method. Is possible. Furthermore, since the plastic protective cover body 71 is lighter than that made of glass, the use of this also contributes to the weight reduction of the pachinko machine. In addition, the weight reduction of the pachinko machine leads to a reduction in transportation cost. In addition, unlike glass, plastic is very difficult to break, so there is an advantage that it is safe for the player.

  (4) In the protective cover body 71, the bulging portion 90 is further formed with bent portions 92, 93, 94. Particularly here, a mountain-shaped bent portion 92 that is convex on the player side and a valley-shaped bent portion 93 that is concave on the player side are extended on both the left and right sides in a state of being adjacent to each other. To do.

  Therefore, the shape is complicated as compared with a simple curved protective cover body that does not include any of the bent portions 92, 93, 94 of this type. Therefore, in this embodiment, the stereoscopic effect is increased and the design is further improved. Therefore, it is possible to give the protective cover body 71 an unprecedented excellent beauty. Furthermore, since the nail looks different from the original state due to the presence of the bulging portion 90 and the bent portions 92, 93, 94, it is possible to provide a pachinko machine that captures and is worthwhile in a sense. Can do.

  In addition, according to this configuration, the variable symbol display device 74 or the like that is directly related to the game looks relatively close to the original figure, while the corner decoration that is not directly related to the game is equivalent to the original figure. It looks different, and it is often difficult to see it. Accordingly, a portion that is not directly related to the game is less likely to be noticed, whereas a portion that is directly related to the game is easily noticeable, so that the player can concentrate more on the game.

  (5) In the present embodiment, however, the mountain-shaped bent portion 92 and the valley-shaped bent portion 93 are provided in a portion slightly closer to the center than the front portion of the left and right electric decoration devices 79 in the bulging portion 90. . For this reason, the traveling direction of the light emitted by the electric decoration device 79 changes when passing through the mountain-shaped bent portion 92 and the valley-shaped bent portion 93, and the electric decoration device 79 looks considerably different from the original light emission mode. Come to do. For this reason, even if it is a case where the illumination device 79 of a simple light emission aspect is used, it is possible to acquire the further decorative effect that it can look gorgeous and beautiful. That is, as a result of improving the dynamic design, the aesthetic improvement of the pachinko machine is achieved. In addition, even when a simple and inexpensive electric decoration device 79 is used, the maximum decorative effect can be obtained, so that the cost reduction of the pachinko machine itself can be achieved.

  (6) The antireflection treatment in the present embodiment is to form minute irregularities on the player side surface 90a of the bulging portion 90, and specifically, sandblasting is performed. Therefore, in this case, the external light is scattered by the minute unevenness, so that the reflection of the external light is prevented. As a result, the external light is hardly reflected on the player side surface 90a. Further, if minute irregularities are formed on the player side surface 90a, the friction coefficient of the surface increases. Therefore, even if the player attempts to slide the player by bringing the magnet into contact with the player side surface 90a in order to guide the game ball, there is an additional effect that the magnet does not slide well and it is difficult to perform fraud.

  Further, according to the sandblasting process, minute irregularities can be directly formed on the bulging part 90 itself by partially removing the surface of the bulging part 90 or deforming it into an irregularity. Accordingly, there is no particular concern that the other member will inadvertently drop off from the bulging portion 90 because the operation such as attaching the other member having minute unevenness is not particularly accompanied. Therefore, as a result of maintaining minute irregularities in a suitable state over a long period of time, an antireflection effect can be obtained semi-permanently. Further, since the number of parts constituting the protective cover body 71 does not increase, the configuration of the protective cover body 71 itself is also prevented from being complicated.

Furthermore, according to the sandblasting process, minute irregularities that can effectively prevent reflection of external light can be formed relatively easily and at a relatively low cost on the surface of the plastic material. Therefore, it is possible to provide a protective cover body 71 that is easy to manufacture and inexpensive. Moreover, since the sand blasting process is a dry abrasive grain injection process, no liquid is required unlike the case where it is performed by a wet process. Therefore, a simple process is sufficient, and the environment is advantageous.
[Second Embodiment]

  In the second embodiment, non-glare processing different from that of the first embodiment is performed. Here, minute irregularities having the same size as that of the first embodiment are formed by coating a minute powder on the surface of the bulging portion 90.

  As the fine powder, an inorganic powder or an organic powder can be used. However, it is desirable to select a material having optical transparency. Examples of the inorganic powder include powder made of ceramics such as silica, alumina, zirconia, titania, and magnesia, and glass powder. Examples of the organic powder include powder made of a synthetic resin such as an acrylic resin. In this embodiment, minute irregularities are formed by coating silica powder of micron order by a conventionally known method.

  Therefore, according to the present embodiment, minute unevenness is formed by the fine powder adhering to the surface of the player side surface 90a of the bulging portion 90 through the coating process. For this reason, when external light passes through the bulging portion 90, it is scattered by minute irregularities, and as a result, antireflection is achieved. As a result, external light is hardly reflected on the player side surface 90a. Therefore, it becomes much easier to see the game board surface as compared with the conventional product having only the bulging portion 90.

  Further, if minute irregularities are formed on the player side surface 90a, the friction coefficient of the surface increases. Therefore, even if the player attempts to slide the player by bringing the magnet into contact with the player side surface 90a in order to guide the game ball, there is an additional effect that the magnet does not slide well and it is difficult to perform fraud.

Furthermore, according to a processing method such as a coating process, the light transmittance can be easily set to a desired value by adjusting the size of the fine powder to be used.
[Third Embodiment]

  In the third embodiment, non-glare processing different from that in the first and second embodiments is performed. That is, here, a coating process (so-called AR coating) is performed on the player side surface 90a of the bulging portion 90 in order to provide an interference layer that cancels external light by utilizing interference of light. The AR coating is to form a transparent thin film (interference layer) by vacuum-depositing magnesium fluoride or the like, and the film thickness of the interference layer is usually set to a value of 1/4 of visible light. For this reason, when external light is incident on the interference layer, it is divided into light reflected by the surface of the interference layer and light reflected by the player side surface 90a of the bulging portion 90 through the interference layer. In this case, since both have opposite phases shifted by ½ wavelength, they cancel each other and the reflected light becomes inconspicuous. Note that a substance other than magnesium fluoride can be selected as a material for forming the interference layer. Further, as a method for forming the interference layer, a thin film forming method other than vacuum vapor deposition (for example, CVD, sputtering, plating, etc.) can be employed.

  Therefore, according to the present embodiment, as a result of the interference action by the interference layer, external light is less likely to be reflected on the player side surface 90a of the bulging portion 90, and the game is simply compared with the conventional product having only the bulging portion 90. The board is much easier to see.

Moreover, since the thing of this embodiment does not aim at antireflection by scattering light by formation of a micro unevenness | corrugation, there is almost no fall of a light transmittance. Therefore, it is possible to maintain an excellent gaming board visibility equivalent to a state where the antireflection treatment is not performed, and it becomes easier to see the gaming board surface than the two embodiments.
[Fourth Embodiment]

  In the fourth embodiment, as non-glare processing, a film having minute irregularities is attached to the player side surface 90 a of the bulging portion 90.

  The film used in this embodiment is formed by forming an antireflection layer on one side of a synthetic resin substrate. Examples of the material used for forming the substrate include polyurethane (PU) resin, polyethylene terephthalate (PET) resin, polyethylene (PE) resin, and polycarbonate (PC) resin. In this case, it is preferable to select a transparent film material having high light transmittance. The antireflection layer has minute irregularities and is formed using, for example, alumina, titania or the like.

  The film with an antireflection layer is attached to the player side surface 90a of the bulging portion 90 in a peelable state. Considering sticking to the bulging portion 90 having the bent portions 92, 93, 94, it is preferable that the film is thin and has some elasticity. The reason is that when performing affixing work on a complex surface with large irregularities, if the film is stretchable, wrinkles are difficult to move, and the followability to the protective cover body 71 and the overall aesthetics are improved. is there. Moreover, in this embodiment, this film is affixed with comparatively weak adhesive force as much as possible so that it can peel.

  Therefore, according to the present embodiment, the antireflection effect can be easily imparted to the protective cover body 71 by simply attaching the film having minute irregularities. In addition, with this configuration, it is possible to select a film having properties suitable for the environment of the pachinko hall (for example, the intensity of lighting in the game hall, the installation mode, etc.).

  In the case of the configuration of the present embodiment, the protective cover body 71 can be used in a state where the film is peeled off if no antireflection measures are required. In addition, even when the pasted film is clouded by dust or the like and the light transmission of the protective cover 71 is lowered, it is possible to peel only the old film and replace it with a new one. is there. Therefore, there is an advantage that the maintenance cost is not required as compared with the structure in which the entire protective cover body 71 must be replaced.

  Furthermore, when such a film is affixed, for example, the strength increases compared to the case where the configuration of the protective cover body 71 alone is adopted, and the film becomes more difficult to break. Therefore, the safety for the player is further improved.

  In addition, you may change embodiment of this invention as follows.

  -The protective cover body of the present invention as a means for covering the game board C in a gaming machine other than a pachinko machine, such as an arrange ball machine (pattern combination game machine using pachinko balls) or a slot machine in a state where it can be seen through Can also be applied.

  As in the case of another example of the protective cover body 101 shown in FIG. 13, the mountain-shaped bent portion 94 extending in the vertical direction in the central portion may be omitted, and only two sets of bent portions 92 and 93 on both the left and right sides may be provided. Good.

  As in another example of the protective cover body 102 shown in FIG. 14, the portion corresponding to the symbol variable display device 74 of the game board C in the bulging portion 90 may be formed in a substantially flat shape. According to this configuration having the flat portion 103 in the substantially central portion, the symbol variable display device 74 can be seen in its original form without any change, so that the player can accurately grasp the change of the symbol and the like.

  -In the said 1st Embodiment, you may make it not perform antireflection processing, such as a sandblasting process, about the location corresponding to the symbol variable display apparatus 74 of the game board C in the bulging part 90. FIG. According to this configuration, a decrease in light transmittance due to the sandblasting process can be avoided in advance, so that the player can accurately grasp changes in symbols and the like.

  In each of the above embodiments, the bulging portion 90 is formed so as to cover only the portion corresponding to the window 23 of the front frame D (the portion corresponding to the game area), but for example, covers the entire front frame D You may actualize as a protective cover body provided with a bulging part. When configured in this manner, the entire gaming machine has a shape that bulges to the front side, resulting in a design with increased unity and an unprecedented appearance. However, when adopting this configuration, it is necessary to ensure the minimum operability for the operation unit (the upper ball tray E, the lower ball tray F, the hitting ball launching device G, etc.).

  The protective cover body 71 of the present invention is not necessarily attached to the support frame 25 from the back side of the front frame D, but is attached to the front frame D from the front side with a single touch using a hook or the like, for example. Also good. With such an attachment mode, the protection cover body can be attached without being affected by the presence or absence of the flat portion 91, and the degree of freedom in shape increases. Moreover, it becomes possible to attach and detach the protective cover body without opening and closing the front frame D itself, which leads to improvement in workability.

  In each of the above embodiments, what covers the game board C in a see-through state is two see-through plates (that is, one glass plate 26 and one protective cover body 71). However, instead of such a two-sheet structure, a three-sheet structure, for example, a protective structure composed of one glass plate 26 and two protective cover bodies 71 may be adopted. In this case, since the player can be further away from the game board C, it is possible to more reliably prevent fraud using a magnet or the like. In addition, since the flat glass plate 26 is disposed on the innermost side regardless of the two-sheet structure or the three-sheet structure, the game ball is prevented from coming into direct contact with the protective cover body 71 having a bulging shape. . Therefore, the game ball can fall smoothly while traveling along the nail as usual.

  -Instead of the sand blast processing illustrated in the first embodiment, other abrasive processing such as shot blasting or lapping may be performed, for example, to perform non-glare processing.

  The non-glare process may be performed not only on the player side surface 90a of the bulging portion 90 but also on the non-player side surface (that is, the game board side surface).

  Next, in addition to the technical ideas described in the claims, the technical ideas grasped by the embodiment described above are listed below.

  (1) In Claim 3 or 4, the mountain-shaped bent portion and the valley-shaped bent portion are provided corresponding to locations other than the location where the symbol display portion is located in the game area of the game board.

  (2) In claim 3 or 4, in the case where there is a symbol display portion at a substantially central portion of the game board, the mountain-shaped bent portion and the valley-shaped bent portion are provided on the side of the symbol display portion. The length is set to correspond to at least the length from the upper end position to the lower end position of the symbol display section.

  (3) In Claim 3 or 4, the mountain-shaped bent part and the valley-shaped bent part are provided corresponding to the left and right side parts of the game board.

  (4) In Claim 3 or 4, the mountain-shaped bent portion and the valley-shaped bent portion are located in front of the left and right electric decoration devices in the bulged portion when the protective cover body is mounted. Or that it is provided in the part closer to the center than there.

  (5) In Claim 3 or 4, the mountain-shaped bent portion and the valley-shaped bent portion are formed so as to have a substantially symmetrical shape in front view.

  (6) In Claim 3 or 4, the shape of the bulging portion in a front view is a substantially circular shape, and the mountain-shaped bent portion and the valley-shaped bent portion are along the outline of the bulged portion. It must be formed in an arc shape.

  (7) In any one of claims 1 to 3, the antireflection treatment layer is minute unevenness formed on a player side surface of the bulging portion.

  (8) In the technical idea 7, the minute unevenness is directly formed on the bulging portion itself by partially removing the surface of the bulging portion or deforming the surface of the bulging portion into an uneven shape. That.

  (9) In the technical idea 7, the minute unevenness is formed by abrasive grain injection processing on the surface of the bulging portion.

  (10) In the technical idea 7, the minute unevenness is formed by dry abrasive grain injection processing on the surface of the bulging portion.

  (11) In the technical idea 7, the minute unevenness is formed by coating a minute powder on the surface of the bulging portion.

  (12) In any one of claims 1 to 3, the antireflection treatment layer is an interference layer that cancels external light by utilizing interference of light.

  (13) In any one of claims 1 to 3, the antireflection treatment layer is a film having minute irregularities attached to at least a player's side surface of the bulging portion.

  (14) In the technical idea 13, the film is stuck in a peelable state.

  (15) In any one of claims 1 to 4, a portion of the bulging portion corresponding to the symbol display portion of the game board is formed in a substantially flat shape.

  (16) In the technical idea 15, the anti-reflection treatment layer is not provided at a location corresponding to the symbol display portion of the game board in the bulging portion.

  (17) A gaming machine in which at least one protective cover body according to any one of claims 1 to 4 is provided outside a glass plate supported by a glass frame of a front frame.

71, 101, 102 ... Protective cover body 90 ... Swelling portion 90a ... Player side surface 92, 94 ... Mountain-like bent portion 93 ... Valley-like bent portion C ... Game board

Claims (5)

  A protective cover body made of plastic that covers the front side of a gaming board in a gaming machine in a state where it can be seen through, and has a curved bulging portion that bulges toward the player side, and at least a player side surface of the bulging portion A protective cover body for a game board having an antireflection treatment layer on the board.   The protective cover body for a game board according to claim 1, wherein a bent portion is further formed in the bulging portion.   6. A mountain-shaped bent portion that is convex on the player side, and a valley-shaped bent portion that is concave on the player side, wherein both the bent portions are extended adjacent to each other. 2. A protective cover body for the game board according to 2.   The protective cover body for a game board according to any one of claims 1 to 3, wherein the antireflection treatment layer is a minute uneven layer.   A gaming machine comprising the protective cover body according to any one of claims 1 to 4.

Images