JP6890390B2 - Fraud prevention structure for ball pachinko machines - Google Patents

Description

The present invention relates to a fraud prevention structure for preventing fraudulent activity of a ball game machine, and in particular, a door frame that is attached to cover the front surface of a main body frame and rotates around a rotation shaft near one side to open and close. The present invention relates to a fraud prevention structure for preventing fraudulent activity by prying open the abutting surface on the side of the one side portion.

In a ball game machine, a main body frame is generally held by an outer frame fixed to an island facility, and a door frame is attached so as to cover the front surface of the main body frame. The door frame is rotatably held by a hinge having a rotation shaft in the vicinity of the left side portion so as to be openable and closable with respect to the main body frame. This rotating shaft is provided at a position offset forward with respect to the door frame in consideration of the thickness of a decorative body such as a lamp provided on the door frame. As a result, it is possible to prevent the decorative body from interfering with the side island equipment such as the inter-table sand as the door frame opens and closes. Therefore, a gap is provided between the surfaces of the main body frame and the door frame, which are abutted in the front-rear direction, behind the rotation shaft so as not to hinder the opening / closing operation of the door frame.

However, the tip of a tool such as a bar or screwdriver is pushed into the gap near the rotation shaft from the side, and after prying open so as to widen the gap, insert a piano wire or the like into the inside of the gaming machine and bend the nail. It is said that there is cheating. Therefore, a structure has been proposed to prevent fraudulent acts due to such prying.

For example, in Patent Document 1, as a structure for preventing prying between the main body frame (housing frame) and the door frame (decorative frame), the main body frame is provided with a protruding piece and the door frame is provided with an engaging piece to prevent fraudulent activity. The structure is disclosed. The protruding piece protrudes to the right near the rotation axis on the left side, and the engaging piece protrudes to the left so as to be located behind the protruding piece when the door frame is closed. As a result, even if an attempt is made to pry open the door frame, the engaging piece abuts on the protruding piece to prevent the door frame from moving forward.

On the other hand, Patent Document 2 discloses a structure for locking two places against prying as a structure for preventing prying between the main body frame (housing side) and the door frame (front door side). There is. In a hinge including a fixing member fixed to the main body frame and a movable member attached to the door frame, the fixing member includes a mounting plate extending vertically, and a horizontal cross section is opened on the right side at the front edge of the mounting plate. A first cross-sectional U-shaped portion having a U-shaped shape is provided. Further, a reinforcing member is fixed to the side of the mounting plate, and a second cross-sectional U-shaped portion is provided in which the tip of the reinforcing member is bent to form a U-shaped horizontal cross section with an opening at the rear. On the other hand, the movable member is provided with an L-shaped cross section extending rearward and bent to the left so as to be locked to the U-shaped cross section of the first cross section when the door frame is to be pried open, and the U-shaped cross section of the second cross section. A third cross-sectional U-shaped portion with an opening on the front side is provided so as to engage with the shaped portion. That is, when the front frame is moved toward the front to pry open, the bent end portion of the L-shaped cross section abuts from the rear of the U-shaped portion of the first cross section that opens to the right, and the U-shaped second cross section that opens rearward. The convex portion at the tip of the U-shaped portion of the third cross section opened from the rear to the front side enters and engages with the concave portion of the shaped portion. This will prevent fraudulent activity due to prying.

Japanese Unexamined Patent Publication No. 2008-173305 Japanese Unexamined Patent Publication No. 2014-11324

As mentioned above, there is a need for a fraud prevention structure that prevents fraudulent activity by prying between the main body frame and the door frame, and there is a need for a method that makes prying open itself difficult, or even if a slight prying is created and a gap is created. Several methods have been proposed, such as making it difficult for foreign matter such as piano wire to enter.

The present invention has been made in view of the above circumstances, and an object of the present invention is to cover a front surface of a main body frame of a ball game machine and to attach a rotating shaft in the vicinity of one side. It is an object of the present invention to provide a fraud prevention structure capable of reliably preventing fraud by prying open the butt surface on the one side side of a door frame that rotates around and opens and closes.

The fraud prevention structure according to the present invention is to cover the front surface of the main body frame and pry open the butt surface on the one side side of the door frame that rotates around a rotation shaft near one side and opens and closes. It is a fraud prevention structure for preventing fraudulent acts due to the above, and a rib along the one side portion is provided inside the main body frame, and a convex portion provided on the back surface of the door frame closes the door frame. In a sealing structure in which the side portion thereof is brought close to the tip end portion of the rib, a bent portion is provided to the tip of the convex portion so as to face the side surface of the rib, and the side surface of the bent portion is made of the rib by the fraudulent act. It is characterized in that it is provided with an engaging mechanism that engages the bent portion and the rib when brought close to the side surface.

According to such an invention, by engaging the adjacent ribs and the side surfaces of the bent portion with each other due to fraudulent act by prying open the door frame, it is impossible for the piano wire or the like to enter, and fraudulent act due to prying open of the door frame is surely prevented. it can.

In the above-described invention, the engaging mechanism may be characterized in that the bent portion is moved along the side surface of the rib to prevent the bent portions from being separated from each other and to prevent prying open. According to such an invention, it is possible to prevent the bent portion from being moved and separated along the side surface of the rib even by prying open, making it impossible for a wire or the like to enter, and it is possible to reliably prevent fraudulent acts due to prying open of the door frame.

In the above-described invention, the engaging mechanism includes a first ridge and a second ridge along the one side portion on the side surface of the rib and the side surface of the bent portion, respectively, and the first ridge and the second ridge, respectively. It may be characterized in that the pry opening is prevented by the contact of the ridges. According to such an invention, by abutting the first ridge and the second ridge, the ribs and the opposing side surfaces of the bent portion are engaged with each other in a non-sliding manner in the horizontal direction, making it impossible for a wire or the like to enter the door. It is possible to surely prevent fraudulent acts caused by prying open the frame.

In the above-described invention, the second ridge may be provided on the side of the one side of the first ridge. According to such an invention, the second ridge provided at the bent portion of the door frame that is pushed by the convex portion and moves to the opposite side to the one side side in the prying opening is securely engaged with the first ridge, and the door is opened. It is possible to surely prevent fraudulent acts caused by prying open the frame.

The invention described above may be characterized in that a plurality of sets of the first ridge and the second ridge that can be engaged with each other are provided. According to such an invention, the side surface of the rib and the side surface of the bent portion can be reliably engaged with each other by a ridge, the gap between the side surfaces can be more reliably sealed, and fraudulent acts due to prying open of the door frame can be reliably prevented.

In the above invention, the rib and the bent portion may be made of a metal material. According to such an invention, the rib and the bent portion can be firmly engaged with each other, and fraudulent acts due to prying open of the door frame can be reliably prevented.

In the above invention, the metal material may be aluminum or an aluminum alloy. According to such an invention, the engagement can be maintained due to the ductility of the metal material even with a large prying opening, and fraudulent acts due to the prying opening of the door frame can be reliably prevented.

It is a front view of a ball game machine. It is a top view of a ball game machine. It is an upper sectional view of the main part of the fraud prevention structure in one Example by this invention. It is an upper sectional view of the main part of the fraud prevention structure in one Example by this invention. It is an upper sectional view of the main part of the fraud prevention structure in one Example by this invention. It is an upper sectional view of the main part of the fraud prevention structure in one Example by this invention.

The fraud prevention structure as one embodiment according to the present invention will be described with reference to FIGS. 1 to 4.

As shown in FIGS. 1 and 2, the gaming machine 1 having a fraud prevention structure has an outer frame 2 installed in an island facility in a game hall (not shown) and a main body that is openably and closably attached to the outer frame 2. It is a ball game machine having a frame 5 and a door frame 3 having an opening 3a attached to the main body frame 5 so as to be openable and closable. Further, a transparent plate 6 for closing the opening 3a, a handle 7 operated for firing the game ball, an upper plate 8 for storing the game ball, and a lower plate 9 are attached to the door frame 3. There is. When the direction is shown later, the direction seen from the player facing the gaming machine 1 is used as shown in the figure.

Inside the main body frame 5, a game board 10 that forms a game area 19 with a transparent plate 6 fitted in the door frame 3 is fixed, and prizes such as a center accessory 12, a start chucker 13, and an attacker 14 are won. Doors, other winning openings not shown, nails and accessories are provided. The center accessory 12 is provided with, for example, a liquid crystal display device. The door frame 3 is provided with a decorative body 4 so as to protrude toward the front side around the transparent plate 6, and a built-in lighting, a speaker, or the like can be used to produce an effect according to the progress of the game.

Referring to FIGS. 1 and 2 together with FIG. 3, the door frame 3 can be rotated about the pin 11a by hinges 11 provided above and below the columnar member 50 fixed to the left side portion of the main body frame 5. Axed. That is, the vertically extending support member 30 fixed to the side portion of the door frame 3 by the pins 11a attached to the upper and lower hinges 11 is rotatably supported by the upper and lower end portions thereof.

As shown in FIGS. 3 and 4, the columnar member 50 extending vertically along the left side of the main body frame 5 projects the plate-shaped rib 51 extending vertically along the columnar member 50 to the right. And prepare. The rib side surface 55 on the back side of the rib 51 includes two protrusions 52a and 52b extending vertically along the rib 51. The columnar member 50 also includes a game board 10 on the right side behind the columnar member 50.

Further, the support member 30 fixed to the door frame 3 is provided with a substantially flat plate-shaped convex portion 31 extending vertically along the support member 30 so as to project in the depth direction. Further, a substantially flat plate-shaped bent portion 32 that bends from the tip of the convex portion 31 and extends vertically is provided so as to project toward the left side. The bent portion side surface 35 on the front side of the bent portion 32 is provided with two ridges 32a and 32b extending vertically along the bent portion 32.

When the door frame 3 is closed with respect to the main body frame 5, the ridge 32a of the bent portion side surface 35 is located on the left side of the ridge 52a of the rib side surface 55, that is, on the left side side of the main body frame 5, and similarly. The ridge 32b of the bent side surface 35 is also located on the left side of the ridge 52b of the rib side surface 55.

A closing member 36 extending vertically is fixed to the support member 30 on the front side thereof so as to form a part of the door frame 3. The closing member 36 has a bent shape that covers the front side of the end portion 56 on the front side of the columnar member 50 and abuts on the right side surface of the end portion 56 in a state where the door frame 3 is closed with respect to the main body frame 5. Have.

Referring to FIG. 5 together with FIG. 3, when the door frame 3 is rotated around the rotation axis by the pin 11a located on the front side of the columnar member 50 so as to be opened with respect to the main body frame 5, the pin 11a The support member 30 on the back side of the door moves to the right on the circumference around the rotation axis. Therefore, in the members of the door frame 3 and the main body frame 5, the planes facing each other in the front-rear direction (labor-back) on the back side of the rotation shaft have gaps in the front-rear direction and interfere with each other in the opening / closing movement of the door frame 3. Will not be. For example, a gap is provided between the rib side surface 55 facing the front and rear and the bent portion side surface 35, or between the front end 56 of the columnar member 50 and the vicinity of the left end of the closing member 36.

Further, when the door frame 3 is closed, the convex portion 31 has a structure in which the left side portion thereof is brought close to the tip portion of the rib 51 and the gap between the convex portion 31 and the main body frame 5 is reduced in the left-right direction to seal the door frame 3. It has become.

Next, in the gaming machine 1 having a fraud prevention structure, the function of the fraud prevention structure when an attempt is made to pry open between the main body frame 5 and the door frame 3 will be described with reference to FIG.

Referring to FIG. 6, between the main body frame 5 and the door frame 3, as described above, the surfaces abutting each other in the front-rear direction of the front end portion 56 of the columnar member 50 and the vicinity of the left end portion of the closing member 36 A gap is provided between them so as not to hinder the opening / closing movement of the door frame 3. In fraudulent activity, a tool T such as a driver or a bar is inserted through such a lateral gap between the main body frame 5 and the door frame 3 to move the door frame 3 toward the main body frame 5. I try to pry it open.

At this time, the end of the tool T inserted from the side on the handle side is pulled toward the front side so as not to interfere with the island equipment such as the inter-table sand on the left side. Therefore, the closing member 36 of the door frame 3 is pulled toward the front side by the tool T and also pushed to the right side. The support member 30 for fixing the closing member 36 is also moved to the front side and the right side in accordance with this (see the arrow in the figure). Since the closing member 36 covers the front side of the end portion 56 on the front side of the columnar member 50 and has a bent shape that abuts on the right side surface of the end portion 56, the closing member 36 also moves to the right side. Cheap.

As the support member 30 moves, the bent portion 32 approaches the rib 51 of the columnar member 50. That is, the bent portion side surface 35 is pulled toward the front side and moves. Further, since the support member 30 also moves to the right side as described above, the ridge 32a of the bent portion side surface 35 abuts on the ridge 52a of the rib side surface 55 from the left side, and the bent portion 32 is further brought to the rib side surface 35. Engage with the rib 51 so that it does not slide to the right along it. With such an engaging mechanism, when the bent portion side surface 35 is brought close to the rib side surface 55 by prying open, the side surfaces are engaged with each other. In particular, the ridges 52a and 32a can engage the bent side surface 35 with the rib side surface 55 in a horizontal direction so as not to slide. That is, it is possible to prevent the bent portion 32 from being moved so as to slide with respect to the rib 51 so as to be separated from each other.

As described above, according to the fraud prevention structure of the gaming machine 1, the bent portion side surface 35 can be engaged with the rib side surface 55 against the pry opening of the butt surfaces of the main body frame 5 and the door frame 3. , It is possible to surely prevent cheating by prying open.

Further, it is preferable that the protrusions of the bent portion side surface 35 and the rib side surface 55 are provided with a plurality of sets that engage with each other. That is, by providing the ridges 32b and the ridges 52b as described above, the ridges 32b of the bent portion side surface 35 also engage with the ridges 52b of the rib side surface 55 to further strengthen the engagement between the side surfaces. it can.

It is preferable that the columnar member 50 including the rib 51 and the support member 30 including the bent portion 32 are both made of a metal material because the above-mentioned engagement can be further strengthened when trying to pry open. Further, when the metal material is aluminum or an aluminum alloy, the ductility is relatively high among the metal materials that can be firmly engaged with each other, so that the angle between the convex portion 31 and the bent portion 32 is increased even if a large prying is performed. It is preferable that the above-mentioned engagement can be maintained by deforming to.

Although the representative examples according to the present invention and the modified examples based on the present invention have been described so far, the present invention is not necessarily limited to this, and those skilled in the art can use the gist of the present invention or the scope of the attached claims. Various alternative and modified examples can be found without departing from the above.

1 Pachinko machine 3 Door frame 5 Main body frame 30 Support member 31 Convex part 32 Bending part 35 Bending part side surface 50 Column member 51 Rib 55 Rib side surface

Claims (5)

The rotation is carried out on the side of the one side of the door frame which is attached so as to cover the front surface of the main body frame and rotates around a rotation shaft provided at a position offset forward near one side. It is a fraud prevention structure that prevents fraud by prying open the gap on the abutting surface between the main body frame behind the shaft and the door frame.
A rib along the one side portion is provided inside the main body frame, and a substantially flat plate member is provided along the one side portion of the door frame, and the side portion thereof is made of the rib by closing the door frame. In the sealing structure of the gap of the butt surface provided so as to be close to the tip portion, the rib and the plate member form a part of the main body frame and the door frame, and the gap of the butt surface is sandwiched between them. A bent portion is provided to the rear tip of the plate member so as to face the rear side surface of the rib, which is fixed to each of the columnar member and the closing member to be formed. It is provided with an engaging mechanism that engages the bent portion and the rib when brought close to the rear side surface.
The engaging mechanism moves the bent portion along the rear side surface of the rib to prevent them from being separated from each other and prevents prying open, and the rear side surface of the rib and the bent portion are said to be said. A ball game characterized in that the front side surface includes a first ridge and a second ridge along the one side portion, respectively, and the first ridge and the second ridge are brought into contact with each other to prevent prying open. Machine fraud prevention structure . The second protrusion is fraud prevention structure pinball game machine of claim 1, wherein the than the first protrusion is provided on a side of the one side. The fraud prevention structure for a pachinko / pachislot machine according to claim 1 or 2 , wherein a plurality of sets of the first ridge and the second ridge that can engage with each other are provided. The fraud prevention structure for a ball gaming machine according to any one of claims 1 to 3 , wherein the rib and the bent portion are made of a metal material. The fraud prevention structure for a ball game machine according to claim 4, wherein the metal material is aluminum or an aluminum alloy.

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