JP2003181080A - Pinball game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pinball game machine which can prevent any foreign object from accidentally entering inside through the gap in the engagement portion between a catch and a hook provided on a first member and a second member opposing to each other. <P>SOLUTION: This pinball game machine is provided with a first member 52 and a second member 30 which is placed next to the first member 52. In the engagement portion between the first member 7 or 52 and the second member 30, a catch 60 and a hook 70 are respectively provided to be connected. The engagement portion includes an entry prevention part 71 placed at an acute angle against the cross section so as to hold any foreign object that is inserted into the gap in the engagement portion, preventing it from further entering inside. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gaming machine such as a pachinko machine (including an arrangement ball machine, a sparrow ball machine, etc., and sometimes called a ball game machine) and a slot machine.

[0002]

2. Description of the Related Art Conventionally, in a game machine, for example, a game machine main body or a first member such as a front plate which is openably and closably mounted on the front side of the game machine main body and has an upper plate, and is adjacent to the first member. Foreign matter such as wires and plates unexpectedly intrudes through a gap between the second member (for example, an opening / closing door that is also called a glass door) and conducts fraudulent activity (for example, winning of a winning device arranged on a game board). There is a case in which the mouth is illegally opened, or a ball is apt to illegally flow into the winning opening of the winning device. In order to prevent such fraud, it is known that a mating portion of a concave portion and a convex portion is provided at a portion where the first member and the second member face each other to prevent an accidental intrusion of foreign matter. .

[0003]

However, even though the fitting portion of the concave portion and the convex portion is provided in the portion where the first member and the second member face each other, the fitting portion is inserted through the gap of the fitting portion. There were cases where a foreign object was accidentally invaded and fraudulent acts were performed. In view of the above problems, the first object of the present invention is
An object of the present invention is to provide a gaming machine capable of preventing foreign matter from inadvertently entering through a gap between a fitting portion of a concave portion and a convex portion provided in a portion where a member and a second member face each other.

[0004]

In order to achieve the above-mentioned object, a gaming machine according to a first aspect of the present invention has a structure as set forth in claim 1, and includes a first member and a first member thereof. A fitting portion of a concave portion and a convex portion is provided at a portion facing the second member adjacent to the one member. Part of the mating part,
An intrusion prevention unit having an acute angle in cross section is provided to engage the foreign matter when the foreign matter is inserted into the gap of the fitting portion and prevent further intrusion of the foreign matter. In the above structure, a foreign material such as a wire or a plate material may be accidentally inserted from the opening of the gap between the fitting portion of the concave portion and the convex portion provided at the portion where the first member and the second member face each other. On this occasion,
When the insertion end portion of the foreign matter reaches the intrusion prevention portion, the insertion end portion of the foreign matter engages with the intrusion prevention portion, and it is possible to prevent the defect that the foreign matter further intrudes into the depth side.

A gaming machine according to a second aspect of the invention has a structure as set forth in claim 2, and has a first aspect.
The member is a first opening / closing member that is openably / closably mounted on the gaming machine body side, and a second member is openably / closably mounted on the gaming machine body side adjacent to an upper portion of the first opening / closing member. It is the second opening / closing member. Therefore, the first opening / closing member,
When the insertion end portion of the foreign matter inserted through the opening of the gap between the concave portion and the convex portion of the second opening / closing member reaches the intrusion prevention portion, the insertion end portion of the foreign matter engages the intrusion prevention portion. In this case, it is possible to prevent a problem that the foreign matter enters the back side more than this.

A gaming machine according to a third aspect of the invention has a structure as set forth in claim 3, and the intrusion prevention portion is provided at the bottom of the recess. Therefore, when the concave portion is integrally formed in the first member or the second member by a molding die such as injection molding, the penetration preventing portion having an acute cross section can be formed at the bottom portion of the concave portion simultaneously with the molding. At this time, the intrusion prevention part does not become an undercut part.
Therefore, it becomes possible to easily form the intrusion prevention part and remove it from the molding die, and there is no problem that the die structure of the molding die becomes complicated.

A gaming machine according to a fourth aspect of the present invention has a structure as set forth in claim 4, in which the tip end surface of the convex portion is substantially parallel to the intrusion prevention portion of the bottom portion of the concave portion and traverses. It is formed with an acute angle. Therefore, it is possible to reduce the size of the gap between the front end surface of the convex portion and the bottom portion of the concave portion while maintaining the distance between the front end surface of the convex portion and the bottom portion of the concave portion in the front-rear direction at a predetermined size. . Therefore, foreign matter can be prevented from entering even in a small gap between the tip surface of the convex portion and the bottom portion of the concave portion, which is highly effective in preventing fraud.

A gaming machine according to a fifth aspect of the present invention has a structure as set forth in claim 5, wherein the intrusion prevention portion is provided near the base of the convex portion. Therefore, when the convex portion is integrally formed on the first member or the second member by a molding die such as injection molding, the intrusion prevention portion having an acute cross section can be formed near the root of the convex portion at the same time as the molding. . At this time, the intrusion prevention part does not become an undercut part. Therefore, it becomes possible to easily form the intrusion prevention part and remove it from the molding die, and there is no problem that the die structure of the molding die becomes complicated.

A gaming machine according to a sixth aspect of the present invention has a structure as set forth in claim 6, wherein the intrusion prevention portion is provided at each of a plurality of fitting portions of the concave portion and the convex portion. ing. Therefore, it is possible to prevent accidental intrusion of foreign matter at a plurality of locations, which is highly effective in preventing fraud.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS (Embodiment 1) Embodiment 1 of the present invention will be described with reference to FIGS. FIG. 4 is a front view of a pachinko machine (also referred to as a ball game machine) as a game machine. FIG. 5 is a perspective view showing a state in which the base frame is opened with respect to the outer frame and the opening / closing door is opened with respect to the base frame. FIG. 6 is a perspective view showing a state in which the base frame is opened with respect to the outer frame. 4 to 6
In the above, the outer frame 3 of the pachinko machine 1 is formed in a rectangular frame shape, and a receiving plate 3a for receiving the base frame 7 on its lower surface is provided at the lower part of the front surface thereof. A base frame 7 as a gaming machine main body is attached to the front side of the outer frame 3 so as to be openable and closable with a shaft of a base frame hinge member 6 forming a base frame opening / closing mechanism on one side as a fulcrum. The other side of the base frame 7 is held in a closed state by a base frame locking hook 15 forming a base frame closing mechanism. As is well known, the closing mechanism for the base frame is
A base frame locking hook 15 provided on the rear side surface of the base frame 7,
The base frame locking hook 15 is provided with a locking tool (not shown) provided on the inner side surface of the outer frame 3 at a position where it can be engaged and disengaged. Then, when the base frame 7 is closed, the base frame locking hook 15 engages with the locking tool of the outer frame 3 and the base frame 7
Is locked in a closed state. To unlock the base frame 7 from the outer frame 3, a key is inserted into the key hole 18 of the cylinder lock of the base frame 7 and the key is rotated in a predetermined direction to lock the base frame lock 15 Is released from the locking tool of the outer frame 3, and the base frame 7 is unlocked from the outer frame 3.

FIG. 1 is a vertical sectional view taken along the line II of FIG. FIG. 2 is a plan sectional view based on the line II-II of FIG. As shown in FIGS. 1, 2, 5, and 6, the base frame 7
Is formed in a rectangular frame shape having an opening that exposes substantially the entire front surface of the game board 10. On the rear surface of the base frame 7, a game board mounting frame 8 is provided along the periphery of the opening. Then, the game board 10 is removably fitted from the rear of the game board mounting frame 8. Furthermore, the mechanism plate 19 mounted to be openable and closable on one side of the game board mounting frame 8 is closed,
By rotating a plurality of fasteners 9 arranged on the rear surface of the game board mounting frame 8 to a fixed position, the game board 10 is fixed to the game board mounting frame 8 via a mechanism plate 19. (See Figure 6).

As shown in FIG. 5, on the front surface of the game board 10, a guide rail 11 having an outer rail and an inner rail forming a ball launch passage is mounted, and inside the guide rail 11, a game area 12 is provided. Is partitioned. On the front surface of the game board 10, a center accessory, a winning device having a winning opening, a wind turbine, a large number of nails, etc. are arranged in the game area 12. A firing rail 50 is arranged below the front surface of the base frame 7, and a front plate 52 is attached so as to be able to open and close so as to cover the firing rail 50. This front plate 5
An upper plate 51 is attached to the front surface of the base plate 2, and an operation handle 16, a lower plate 17 and the like are arranged on the lower front surface of the base frame 7 located below the front plate 52.

As shown in FIGS. 1, 2 and 5, the base frame 7
On the front side of the front plate 52 and on the front plate 52, an opening / closing door 30 is provided, one side of which is openably / closably attached by the door opening / closing mechanism 20 and the other side of which is held in a closed state by the door closing mechanism 25. In the first embodiment, the opening / closing door 30
Between one side and one side of the front face of the base frame 7 facing this,
A door hinge member 21 that configures the door opening / closing mechanism 20 is provided, and an opening / closing door 30 is mounted to be openable / closable about a hinge axis of the door hinge member 21 as a fulcrum (center). Further, the other side (free end side) of the rear surface of the opening / closing door 30 and the base frame 7
Between the other side of the front surface, the door closing hook 26 and the locking plate 2
7 is provided for closing the door.

That is, as shown in FIG. 2 and FIG. 5, door closing hooks 26 are projectingly provided at a total of three positions on one side of the rear surface of the opening / closing door 30 above and below and in the middle, while the base frame 7 is An insertion hole 7a is formed in the side portion, into which the door closing hook 26 is inserted when the opening / closing door 30 is closed. Further, on the other side of the rear surface of the base frame 7, hooks 26 for closing each door are provided.
A locking plate 27 having a locking hole that locks the opening / closing door 30 in a closed state by being engaged with and disengaged with is disposed movably (movable up and down) between a locking position and an unlocking position. When the opening / closing door 30 is closed, the door closing hook 26 is inserted into the locking hole while moving the locking plate 27 once in the unlocking direction against the elastic force of the spring. When the locking plate 27 is returned to the original locking position by the elastic force of the spring, the door closing hook 26 engages with the locking plate 27, whereby the opening / closing door 30 is locked in the closed state. ing. In addition, unlocking the opening / closing door 30 with respect to the base frame 7
A key is inserted into the keyhole 18 of the base frame 7, and the key is inserted into the outer frame 3
By rotating the base frame 7 in a direction opposite to the unlocking direction of the base frame 7, the locking plate 27 moves in the unlocking direction against the elastic force of the spring, whereby the locking plate 27 is unlocked. The door closing hook 26 is disengaged, and the opening / closing door 30 is unlocked from the base frame 7.

As shown in FIGS. 1, 2 and 5, the opening / closing door 30 is mainly composed of a main body frame 32 and a synthetic resin front decoration member 33 mounted on the front surface of the main body frame 32. There is. The main body frame 32 is formed of a metal plate such as an iron plate or a hard synthetic resin, and a substantially circular opening window 31 through which the game area 12 of the game board 10 can be seen is formed in the central portion of the main body frame 32. . The front decoration member 33 is formed of a synthetic resin molded product, and the front surface thereof is provided with irregular decorations, and a lens portion for emitting light is appropriately formed on a part thereof. Also,
Between the body frame 32 and the front decoration member 33, a lamp board 35 having a light emitting body 36 such as a lamp or an LED is arranged at a position corresponding to the lens portion.

As shown in FIGS. 1, 2 and 5, on the rear surface of the main body frame 32 of the opening / closing door 30, a window frame for holding the two front and rear rectangular transparent plates 42 for closing the opening window 31. 40 is integrally formed. The window frame 40 includes a lower frame portion 40 a that extends in the left-right direction below the opening window 31.
And the left and right side frame parts 40b standing upright and extending upward from the left and right ends of the lower frame part 40a, respectively.
It is formed in a frame shape. In addition, the lower frame portion 40 of the window frame 40
a and the left and right side frame parts 40b, the front and rear two transparent plates 4
Holding grooves for holding 2 are formed in front and rear rows.
Further, the two front and rear transparent plates 42 have both left and right edges thereof inserted into the respective holding grooves from the glass insertion openings at the upper ends of the left and right side frame portions 40b, and the lower edges of the transparent plates 42 have a lower frame portion 40a. It is designed to be held in the state that it is inserted into the holding groove of. Further, a glass pressing body 45 is attached to the upper end portions of the left and right side frame portions 40b of the window frame 40 so as to be openable and closable or detachable. Then, the glass pressing body 45 is attached to the window frame 40.
The upper end of the transparent plate 42 can be pressed by being closed over the upper ends of the left and right side frame portions 40b. Further, when the glass retainer 45 is opened, the transparent plate 42 is detachably and replaceably inserted from the upper opening of the holding groove of the window frame 40.

As shown in FIGS. 1 to 3, the base frame 7 and / or the front plate 52 as the first member (which also corresponds to the first opening / closing member of the present invention) and the opening / closing door as the second member. A fitting portion of the concave portion 60 and the convex portion 70 is provided at a portion facing 30 (which also corresponds to the second opening / closing member of the present invention). In the first embodiment, the free end side of the synthetic resin front decoration member 33 of the opening / closing door 30 (the door closing hook 2
Projections 70 projecting rearward are formed on the upper and lower edges, respectively. Also, the base frame 7
Of the frame member 7a made of synthetic resin integrally attached to the front surface of the vehicle and the side edge portion on the free end side, and the front plate 5 made of synthetic resin.
The concave portions 60 are formed at the upper edge portions of the front surface of No. 2.

As shown in FIGS. 3A and 3B, in a part of the fitting portion between the concave portion 60 and the convex portion 70, a wire, a plate material or the like is opened from the front opening of the gap between the fitting portions. When the foreign matter 90 is inserted, an intrusion prevention portion 65 having an acute angle in cross section is provided to engage with the insertion end portion 91 of the foreign matter 90 and prevent further intrusion of the foreign matter 90. In the first embodiment, the bottom of the recess 60 is provided with an intrusion prevention part 65 having an acute cross section. That is, the recess 60 is
The convex portion 70 is provided with both side wall portions 61 and 62 facing each other in a substantially parallel shape with a space into which the convex portion 70 can be inserted, and a bottom wall portion 63, and is formed in a groove shape that is open to the front. Then, the recess 60
The cross section of the bottom wall 63 is such that the corner formed by the one side wall 61 and the bottom wall 63 forms an acute angle, and the corner formed by the other side wall 62 and the bottom wall 63 forms an obtuse angle. It is formed in an inclined shape. In other words, the bottom wall portion 63 of the recess 60 and the one side wall portion 61 form an intrusion prevention portion 65 having an acute cross section.
Is provided. Further, the angle of the intrusion prevention part 65 is preferably set to be as small as less than 90 degrees, but if it is set to a small angle of, for example, 20 degrees or less, it becomes difficult to manufacture or the intrusion prevention part 65 is provided before and after. This causes a problem that the depth dimension in the direction becomes large. In consideration of this, it is desirable that the intrusion prevention portion 65 be formed to have an acute angle of about 30 degrees to about 60 degrees.

In the first embodiment configured as described above, as shown in FIG. 3B, the base frame 7 as the first member and / or the front plate 52 (the first opening / closing of the present invention). (Corresponding to a member), and an opening / closing door 30 as a second member
A foreign material 90 such as a wire or a plate material is unexpectedly inserted into a portion facing (which also corresponds to the second opening / closing member of the present invention) from the front opening of the gap between the fitting portion of the concave portion 60 and the convex portion 70. There are cases. Then, the foreign matter 90 enters along the gap between the one side wall portion 61 of the concave portion 60 and the convex portion 70.
The bottom wall portion 63 of the recess 60 is provided with an intrusion prevention portion 65 having an acute angle in cross section by the one side wall portion 61 and the bottom wall portion 63. Therefore, when the insertion end portion 91 of the foreign matter 90 reaches the intrusion prevention portion 65, the insertion end portion 91 of the foreign matter 90 bites into and engages with the intrusion prevention portion 65, and the foreign matter 90 is further moved to the back side. It is possible to prevent intrusion problems. As a result, the foreign material 90 is invaded toward the game board 10 and the game board 1
It is possible to prevent fraudulent acts in which a winning opening of a winning device (not shown) arranged at 0 is illegally opened, or a ball is easily intruded into the winning opening of the winning device. it can.

In particular, in the first embodiment, the base frame 7
Front synthetic resin frame member 7b and synthetic resin front plate 5
A recess 60 is formed in each of the two. At the same time when the frame member 7b and the front plate 52 are formed by injection molding of synthetic resin, the recess 60 is formed at a predetermined position on the frame member 7b and the front plate 52.
Can be integrally formed. Further, at the same time as the injection molding, the bottom wall portion 63 of the recess 60 is formed in a slanted cross section, so that the intrusion prevention section 6 having an acute cross section is formed.
5 can be formed. At this time, since the intrusion prevention portion 65 does not become an undercut portion, the mold structure of the molding die does not become complicated. As a result, it is possible to easily form the intrusion prevention portion 65 on the bottom wall portion 63 of the recess 60 and remove the die.

(Second Embodiment) Next, a third embodiment of the present invention will be described with reference to FIG. This Embodiment 3
In, the base frame 7 and / or the front plate 52 as the first member
A recessed portion 60 provided in a portion where the opening / closing door 30 (which also corresponds to the first opening / closing member of the present invention) and the opening / closing door 30 as the second member (which also corresponds to the second opening / closing member of the present invention) face each other.
Of the convex portions 70, the concave portion 60 is formed in substantially the same manner as in the first embodiment. That is, the bottom wall portion 63 of the recess 60 and the side wall portion 61 on one side form an acute angle (preferably 30
An intrusion prevention part 65 having an acute angle of about 60 degrees to about 60 degrees is provided. In particular, in the second embodiment, the front end surface 70a of the convex portion 70 is formed substantially parallel to the intrusion prevention portion 65 of the bottom wall portion 63 of the concave portion 60 and has an acute cross section.
The other configurations of the second embodiment are the same as those of the first embodiment, and the description thereof will be omitted.

Therefore, in the second embodiment, substantially the same operational effect as in the first embodiment is obtained, and the distance between the front end surface 70a of the convex portion 70 and the bottom wall portion 63 of the concave portion 60 in the front-rear direction is set. While maintaining the predetermined size, the gap dimension Y between the tip surface 70a of the convex portion 70 and the bottom wall portion 63 of the concave portion 60 can be reduced. In other words,
Maintaining a predetermined distance X in the front-rear direction between the tip surface 70a of the convex portion 70 and the bottom wall portion 63 of the concave portion 60 in consideration of variations in manufacturing and assembling of the convex portion 70 and the concave portion 60. Accordingly, the tip end surface 70a of the convex portion 70 is changed to the bottom wall portion 63 of the concave portion 60.
It is possible to prevent a collision failure due to an unexpected collision. Furthermore, when the foreign matter 90 is accidentally inserted from the front opening of the gap between the fitting portions of the concave portion 60 and the convex portion 70,
In the unlikely event that the tip portion of the foreign matter 90 is the intrusion prevention portion 65 of the bottom wall portion 63.
Even if the user tries to invade into the back side from above, the foreign material 90 can be prevented from entering by a small gap (gap dimension Y) between the tip surface 70a of the convex portion 70 and the bottom wall portion 63 of the concave portion 60. Greatly effective in preventing actions.

(Third Embodiment) Next, a third embodiment of the present invention will be described with reference to FIGS. In the third embodiment, the base frame 7 and / or the front plate 52 as the first member (corresponding to the first opening / closing member of the present invention) and the opening / closing door 30 as the second member (the first opening / closing member of the present invention). 2 also corresponds to the opening / closing member), of the concave portion 60 and the convex portion 70 provided in a portion facing each other, the convex portion 70 is
It is formed in substantially the same manner as in the first embodiment. Also, the recess 6
0 is formed in a groove shape having both side wall portions 61 and 62 facing each other in a substantially parallel shape with a space into which the convex portion 70 can be inserted and a bottom wall portion 63, and opening forward. Then, the corner portion formed by one side wall portion 61 and the bottom wall portion 63 of the concave portion 60 forms an obtuse angle, and the corner portion formed by the other side wall portion 62 and the bottom wall portion 63 forms an acute angle. 63 is formed in a slanted cross section. In other words, the bottom wall portion 63 of the recess 60
And the side wall portion 62 on the other side has an acute cross section (preferably 3
An intrusion prevention part 65 having an acute angle of about 0 degree to about 60 degrees is provided. The other structure of the third embodiment is the same as that of the first embodiment, and therefore the description thereof is omitted.

Therefore, in the third embodiment,
If the foreign matter 90 is accidentally inserted from the front opening of the gap between the fitting portions of the concave portion 60 and the convex portion 70, the foreign matter 90 will be
It enters along the gap between the one side wall portion 61 and the convex portion 70. Thereafter, the insertion end portion 91 of the foreign matter 90 hits an obtuse angle portion between the one side wall portion 61 and the bottom wall portion 63 of the concave portion 60 and bends, and between the bottom wall portion 63 of the concave portion 60 and the tip of the convex portion 70. May invade into the gap. Bottom wall portion 63 of the recess 60
The other side wall portion 62 and the bottom wall portion 63 are provided with an intrusion prevention portion 65 having an acute cross section. For this reason,
When the insertion end portion 91 of the foreign matter 90 reaches the intrusion prevention portion 65, the insertion end portion 91 of the foreign matter 90 bites into and engages with the intrusion prevention portion 65, and the foreign matter 90 further intrudes into the back side. Can be prevented. That is, the third embodiment
Then, as compared with the first embodiment, the intrusion prevention portion 65 is provided closer to the rear side in the gap between the fitting portions of the concave portion 60 and the convex portion 70. Therefore, if the foreign matter 90 is accidentally inserted from the front opening of the gap between the fitting portions of the concave portion 60 and the convex portion 70, the insertion end portion 91 of the foreign matter 90 is inserted into the side wall portion 61 and the bottom wall of the concave portion 60. By making contact with the obtuse angle portion between the portion 63 and the portion 63, the force of intrusion of the foreign matter 90 can be reduced. Then, when the penetration force of the insertion end portion 91 of the foreign matter 90 becomes weak, the insertion end portion 91 of the foreign matter 90 enters the intrusion prevention portion 65.
By engaging and engaging with the
It is possible to surely prevent the intrusion of the intruder, and it is very effective in preventing fraud.

(Fourth Embodiment) Next, a fourth embodiment of the present invention will be described with reference to FIG. This Embodiment 4
In, the base frame 7 and / or the front plate 52 as the first member
A recessed portion 60 provided in a portion where the opening / closing door 30 (which also corresponds to the first opening / closing member of the present invention) and the opening / closing door 30 as the second member (which also corresponds to the second opening / closing member of the present invention) face each other.
The concave portion 60 of the convex portion 70 and the convex portion 70 are opposed to each other in a substantially parallel shape with a space into which the convex portion 70 can be inserted.
2 and a bottom wall portion 63 that is perpendicular to these side wall portions 61 and 62, and is formed in a groove shape that opens forward. Also,
A V-groove shape having an acute cross-section (preferably about 30 to 60 degrees) is formed in the vicinity of the root of the projection 70 located at the end on the far side of the gap between the fitting portion of the recess 60 and the projection 70. An intrusion prevention unit 71 is provided. The other structure of the fourth embodiment is the same as that of the first embodiment, and the description thereof is omitted.

Therefore, in the fourth embodiment,
If a foreign matter is accidentally inserted from the front opening of the gap between the fitting portion of the concave portion 60 and the convex portion 70, the foreign matter will enter the gap between the one side wall portion 61 of the concave portion 60 and the convex portion 70 and the bottom wall of the concave portion 60. It may enter through a gap between the portion 63 and the tip of the convex portion 70 and a gap between the other side wall portion 62 of the concave portion 60 and the convex portion 70 in order. An intrusion prevention portion 71 having an acute cross section is provided near the root of the convex portion 70. Therefore, when the insertion end portion of the foreign matter reaches the intrusion prevention portion 71, the insertion end portion of the foreign matter bites into and engages with the intrusion prevention portion 71, and further deeper side, that is, the concave portion 60 and the convex portion. It is possible to prevent a problem that foreign matter enters through the gap of the fitting portion of 70 and intrudes, thereby preventing fraud. In particular, in the fourth embodiment, the convex portion 70 is formed on the edge portion of the synthetic resin front decoration member 33 of the opening / closing door 30, and the convex portion 7 is formed.
A V-groove-shaped intrusion prevention portion 71 having an acute cross section is provided near the root of 0. Therefore, at the same time when the front decoration member 33 is formed by injection molding of synthetic resin, the convex portion 70 is integrally formed, and the V-groove-shaped intrusion prevention portion 71 having an acute-angled cross section is formed near the root of the convex portion 70. be able to. At this time, since the intrusion prevention portion 71 does not serve as an undercut portion, the mold structure of the molding die does not become complicated. As a result, it is possible to easily form the intrusion prevention portion 71 near the base of the convex portion 70 and remove the mold.

(Fifth Embodiment) Next, a fifth embodiment of the present invention will be described with reference to FIG. In the fifth embodiment, the base frame 7 and / or the front plate 52 (which also corresponds to the first opening / closing member of the present invention) as the first member of the above-described first to fourth embodiments, and the second member. Door 30 as
This is a combination of the shapes of the fitting portions of the concave portion 60 and the convex portion 70, which are provided in the portion facing (which also corresponds to the second opening / closing member of the present invention). Then, the intrusion prevention portions 65 and 71 having an acute cross section have the bottom wall portion 63 of the recess 60.
And the vicinity of the base of the convex portion 70. The other structure of the fifth embodiment is similar to that of the first embodiment, and therefore the description thereof is omitted.
Therefore, in the fifth embodiment, the intrusion prevention portions 65 and 71 having an acute cross section can prevent foreign matter from invading in a double manner, and can further prevent fraud.

(Sixth Embodiment) Next, a sixth embodiment of the present invention will be described with reference to FIGS. In the sixth embodiment shown in FIG. 11A,
A recess 60 formed in the base frame 7 as the first member and / or the front plate 52 (corresponding to the first opening / closing member of the present invention).
Is formed in a groove shape having both side wall portions 61 and 62 and a bottom wall portion 63 that face each other in a substantially parallel manner with a predetermined distance therebetween, and is substantially the same as in the first or second embodiment. Has been done. Then, the bottom wall portion 63 of the recess 60 and the one side wall portion 61
The intrusion prevention part 65 having an acute angle (preferably an acute angle of about 30 to 60 degrees) in cross section is provided. Further, the recesses 160 formed in the opening / closing door 30 as the second member (which also corresponds to the second opening / closing member of the present invention) have the side wall portions 161 and 1 that face each other in a substantially parallel shape with a predetermined interval.
62 and a bottom wall portion 163, and is formed in a groove shape that opens rearward. Then, the bottom wall portion 163 of the recess 160
And the side wall portion 161 has an acute cross-sectional angle (preferably an acute angle of about 30 to 60 degrees).
5 are provided. That is, the other side wall portion 62 of the recess 60 of the base frame 7 and / or the front plate 52 and the other side wall portion 162 of the recess 160 of the opening / closing door 30 are respectively formed into the convex portion 70,
It is 170. Then, the base frame 7 and / or the front plate 52
The other side wall portion 62 (convex portion 70) of the concave portion 60 of the
0 in the groove of the recess 160, and the recess 16 of the opening / closing door 30.
The other side wall portion 162 (projection portion 170) of 0 is the base frame 7 and / or
Alternatively, they are respectively fitted into the grooves of the recess 60 of the front plate 52. Further, (B) to (D) of FIG. 11 respectively show the embodiments of the sixth embodiment, and the same components are designated by the same reference numerals and the description thereof will be omitted.

Therefore, in the sixth embodiment shown in FIGS. 11A to 11D, the recess 60 of the base frame 7 and / or the front plate 52 and the recess 160 of the opening / closing door 30 are fitted to each other. By combining, the concave portions 60 and 160 and the convex portions 70,
The fitting portion with 170 is configured to be adjacent. Further, since the intrusion prevention portions 65 and 165 each having an acute cross-section can be provided in each fitting portion, the effect is further enhanced by preventing fraud.

The present invention is not limited to the first to sixth embodiments. For example, the first to sixth embodiments
In the above, the base frame 7 and / or the front plate 52 (corresponding to the first opening / closing member of the present invention) is the first member, and the opening / closing door 3
Although the case where 0 (corresponding to the second opening / closing member of the present invention) is used as the second member is illustrated, the box body of the control board box installed at a predetermined position of the pachinko machine 1 is used as the first member, and the lid is used. It is also possible to implement the body as the second member. Also,
In the first to sixth embodiments, the case where the opening / closing door 30 as the second member is attached to one side of the opening / closing door 30 so as to be openable / closable about the axis of the door hinge member 21, has been described.
A structure may be employed in which the second member is opened and closed by being attached to and detached from the first member. Further, in a gaming machine other than a pachinko machine, for example, a slot machine, the main body part may be the first member, and the opening / closing member attached to the main body part so as to be openable / closable may be the second member.

[0031]

As described above, according to the present invention,
It is possible to prevent foreign matter from inadvertently entering through a gap between the fitting portion of the concave portion and the convex portion provided in the opposing portion of the first member and the second member, and this is highly effective in preventing fraud.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing a pachinko machine as a game machine according to a first embodiment of the present invention based on the line I-I of FIG.

FIG. 2 is a plan sectional view based on line II-II of FIG.

3 (A) is an enlarged cross-sectional view showing a fitting portion between a concave portion and a convex portion, and FIG. 3 (B) shows a state in which foreign matter has entered the gap between the fitting portion between the concave portion and the convex portion. It is sectional drawing which expands and shows.

FIG. 4 is a front view showing the same pachinko machine as a whole.

FIG. 5 is a perspective view showing a state in which the base frame is opened with respect to the outer frame and the opening / closing door is opened with respect to the base frame.

FIG. 6 is a perspective view showing a state in which the base frame is also opened with respect to the outer frame.

FIG. 7 is an enlarged sectional view showing a fitting portion between a concave portion and a convex portion according to the second embodiment of the present invention.

8A is an enlarged cross-sectional view showing a fitting portion between a concave portion and a convex portion according to Embodiment 3 of the present invention, and FIG. 8B is a foreign matter in a gap between the fitting portion between the concave portion and the convex portion. It is sectional drawing which expands and shows the state which invaded.

FIG. 9 is an enlarged cross-sectional view showing a fitting portion between a concave portion and a convex portion according to Embodiment 4 of the present invention.

FIG. 10 is an enlarged sectional view showing a fitting portion between a concave portion and a convex portion according to a fifth embodiment of the present invention.

FIG. 11A is a sixth embodiment of the present invention.
Sectional drawing which expands and shows the fitting part of the recessed part and convex part of FIG.
(D) is sectional drawing which expands and shows the embodiment of the fitting part of a recessed part and a convex part, respectively.

[Explanation of symbols]

1 Pachinko machine (gaming machine) 3 outer frame 7 Base frame (first member) 10 game board 30 Open / close door (second member, second open / close member) 52 Front plate (first member, first opening / closing member) 60 recess 61, 62 Side wall 63 Bottom wall 70 convex 71 Intrusion prevention section

Claims (6)

[Claims] 1. A fitting portion of a concave portion and a convex portion is provided in a portion where a first member and a second member adjacent to the first member face each other, and a portion of the fitting portion includes: A game machine provided with an intrusion prevention unit having an acute-angled cross section for engaging a foreign substance when the foreign substance is inserted into a gap of the fitting portion and preventing the foreign substance from further intruding. 2. The gaming machine according to claim 1, wherein the first member is mounted on the gaming machine main body side so as to be openable and closable.
And a second member is a second opening / closing member that is mounted on the main body of the gaming machine so as to be openable / closable adjacent to the upper portion of the first opening / closing member. 3. The gaming machine according to claim 1, wherein the intrusion prevention unit is provided at the bottom of the recess. 4. The gaming machine according to claim 3, wherein the tip end surface of the convex portion is formed substantially parallel to the intrusion prevention portion at the bottom of the concave portion and has an acute cross section. 5. The gaming machine according to any one of claims 1 to 4, wherein the intrusion prevention unit is provided near a root of the convex portion. 6. The gaming machine according to claim 1, wherein the intrusion prevention portion is provided at each of a plurality of fitting portions of the concave portion and the convex portion.