JP5056872B2 - Image display device - Google Patents

Description

  The present invention relates to an image display device including a display device body having an image forming region for forming an optical image in accordance with input image information.

In recent years, thin, small, and light image display devices such as liquid crystal panels, plasma displays, and organic EL displays have become widespread, and such small and light image display devices have become widespread in game machines such as pachinko and pachislot machines. Yes.
For example, in the case of a pachinko, when a ball wins the start chucker, a lottery is started by a control device built in the pachinko machine, and when a big hit is made as a result of the lottery, a door provided at a predetermined position on the board opens, The number of winning balls is dramatically increased, and a lot of balls are paid out to the player. In such a pachinko gaming machine, the image display device displays a predetermined combination of patterns during the lottery, displays the winning and losing lottery results, and displays various patterns during the big hit to display the player. It will entertain you.

  An image display device used in such a gaming machine is configured to include a display device body having an image forming area for forming an optical image, and a main substrate that controls the drive of the display device body. In addition to the driver IC that drives the liquid crystal elements in the image forming area and the MPU that performs display control, the CGROM ( A memory that stores display characters such as Character Generator Read Only Memory may be implemented.

By the way, image display devices used in gaming machines must be legally strict in terms of their specifications so that they do not illegally modify gaming machines to produce balls. Don't be. For example, such an image display device is mounted on the main substrate by disposing the main substrate along the back side of the display device body, covering the main substrate with a transparent case, and sealing the case. Circuit elements cannot be easily replaced. In addition, all circuit elements mounted on the main board must be visible from the outside through a transparent case.
On the other hand, in recent years, image display in gaming machines has become complicated including 3D images, and the number of circuit elements that have to be mounted on a main board has increased.

In order to mount an increasing number of circuit elements efficiently and in a space-saving manner, it is conceivable to stack the main board and the sub board. However, as described above, it is impossible to make all of them visible from the outside.
For this reason, a board-to-board connector is arranged on the main board, this connector is also attached to the end of the sub-board, and the sub-board is erected vertically on the main board. Reference 1).
With such a connection, since the circuit element mounted on the main board can be visually recognized from between the sub boards, the above problem can be solved.

JP-A-6-169187 (see FIGS. 1 and 3)

  However, in the technique described in the above document, since the main board and the sub board are merely connected by a board-to-board connector, depending on the weight of the sub board, the sub board may be dropped due to vibration or the like. is there. In particular, in a gaming machine such as a pachinko machine, the game board or the like may be opened and closed, and there is a high possibility that the gaming board will fall off due to vibrations at this time.

  An object of the present invention is to provide an image display device that has a very low possibility of falling off due to vibration or the like and that allows a circuit element mounted from the back side to be easily visually recognized.

The image display device of the present invention is an image display device including a display device body having an image formation region for forming an optical image in accordance with input image information, and the image formation region is provided on the back side of the display device body. And a main board that controls the display device main body and is connected to a connector provided on the circuit element mounting surface of the main board so as to stand up from the circuit element mounting surface. A sub board to be disposed; and holding means for suppressing movement of the sub board inserted in the connector in a falling direction , the holding means being mounted on the main board along the connector, and the rigid portion provided so as to extend over the connecting portion, and wherein extending from the rigid portion to an end portion of the sub-substrate, and a grip portion for engaging an end portion of the sub-substrate That.

Here, as the connector, it is preferable to employ a so-called board-to-board connector that directly connects the substrates.
According to the present invention, even if the sub board is provided so as to stand up from the mounting surface of the main board, the movement of the sub board in the tilting direction can be restricted by the holding means, so that vibration or the like acts on the image display device. However, it is possible to prevent the sub board from being detached from the connector provided on the main board. Therefore, when observed from the back side of the image display device, the circuit elements mounted on the sub-board can be visually recognized, and further, the circuit elements mounted on the main board therebelow can also be visually recognized. Moreover, it is possible to prevent the sub-board from falling off, and it is suitable as an image display device used in a gaming machine such as a pachinko machine.

Further, according to the present invention, it is possible to it is possible to provide a holding means with or without a cover member for covering the main board and the sub board, set regardless of the size also the cover member of the sub-substrate, The degree of freedom in combining the main board and the sub board is greatly improved. In addition, since the rigid body portion is provided so as to straddle the connection portion of the connector, it is possible to reliably prevent the sub-board from dropping from the connector due to vibration or the like.
In the present invention, it is preferable that the gripping part grips both ends of the sub board in the normal direction of the main board.
In the present invention, it is preferable that the gripping part grips both ends of the sub-board in a direction along the circuit element mounting surface.
In the present invention, it is preferable that a memory on which characters to be displayed in the image forming area are recorded is mounted on the sub-board.

The front view showing the outline of the pachinko gaming machine using the image display device according to the first embodiment of the present invention. Sectional drawing showing the structure of the image display apparatus in the said embodiment. The principal part sectional drawing showing the structure of the holding means in the said embodiment. The principal part sectional drawing showing the structure of the holding means of the image display apparatus which concerns on 2nd Embodiment of this invention. The principal part sectional drawing showing the structure of the holding means of the image display apparatus which concerns on 3rd Embodiment of this invention. The principal part sectional drawing showing the structure of the holding means of the image display apparatus which concerns on 4th Embodiment of this invention. Sectional drawing showing the structure of the image display apparatus which concerns on 5th Embodiment of this invention. The top view showing the structure of the holding means of the image display apparatus which concerns on 6th Embodiment of this invention.

Next, embodiments of the present invention will be described with reference to the drawings.
[1] First embodiment
(1-1) Schematic configuration of pachinko gaming machine 1 FIG. 1 shows a schematic configuration of a pachinko gaming machine 1 according to the first embodiment of the present invention. This pachinko gaming machine 1 includes a gaming board 2 and an image display device 3 and is not shown in the figure, but the gaming board 2 is covered with a transparent glass plate, and the lower right portion of the gaming board 2 is A launching device for launching pachinko balls is provided. Further, on the back side of the game board 2, there is provided a control device for performing a big hit lottery started by a start chucker described later.
The game board 2 is composed of a decorative plywood or the like, and a plurality of nails (not shown) are planted on the game board 2, and an electrical decoration 21 made of LEDs or the like, a plurality of winning holes 22, and a start chuck 23. And a jackpot winning opening 24 which is usually covered with a lid.

The image display device 3 is fitted into an opening formed at substantially the center of the game board 2, and an image forming area for forming an image is exposed on the front side of the game board 2.
In such a pachinko gaming machine 1, when a pachinko ball is launched from the launching device and won in the winning hole 22, a predetermined number of pachinko balls are paid out. In addition, when the start chucker 23 is won, the control device performs a lottery to determine whether or not the game is a big hit. When the lottery is started, the image display device 3 changes the pattern displayed in the image forming area, displays that it is in the lottery state, and blinks the electrical decoration 21 and the like in accordance with a control command from the control device. Let the player have a big hit expectation.

  The result of the lottery is displayed as a combination of pictures in the image forming area on the image display device 3. For example, if all the displayed pictures are the same, it is a big hit. When the jackpot is reached, the lid of the jackpot winning opening 24 is opened, and if the player continues to hit the pachinko ball as it is, most of the pachinko balls win the jackpot winning slot 24 and a lot of pachinko balls are paid out to the player. During the big hit, a moving image or the like indicating that the big hit is displayed in the image forming area of the image display device 3, and during this time, the player can enjoy watching the moving image or the like. Note that there are some lottery methods by the control device that, after the jackpot is over, the lottery is performed again to shift to the high probability mode, and the jackpot is likely to occur.

(1-2) Structure of Image Display Device 3 As shown in FIG. 2, the image display device 3 used in such a pachinko gaming machine 1 includes a display device body 31, a frame 32, a fixing plate 33, and a main substrate 34. The sub board 35 and the cover member 36 are provided.
The display device main body 31 is provided with its image forming area 311 exposed on the front side of the game board 2, and a picture corresponding to the lottery by the control device is displayed on the image forming area 311. In this example, a liquid crystal display device is employed as the display device body. Although not shown, this liquid crystal display device includes a liquid crystal panel disposed in an image forming area and a backlight including a cold cathode tube that illuminates the liquid crystal panel from the back side.

The frame body 32 is a sheet metal member in which an opening for exposing the image forming region 311 is formed at substantially the center thereof, and a peripheral edge portion is bent in the back side direction of the game board 2. It is fixed to the game board 2 by the frame body 32. Although not shown, the frame 32 is connected to GND so that the image forming area 311 of the image display device 3 is charged and dust is not attached thereto. Further, on the back side of the frame body 32, an upright piece 321 is bent so as to surround the display device main body 31 and the main substrate 34. Further, the end portion of the upright piece 321 is entirely bent inwardly. It is formed over.
The fixing plate 33 functions as a pedestal for fixing the main substrate 34, and is composed of a sheet metal member whose peripheral portion is bent. The fixing plate 33 is housed inside the frame 32 and is disposed along the back surface of the display device main body 31. A receiving portion 331 formed by bending is formed around the fixed plate 33, and the main substrate 34 is fixed to the receiving portion 331.

The main board 34 is a circuit board that performs drive control of the display device main body 31 described above, and the main board 34 is electrically connected to a control device that performs a big hit lottery of the pachinko gaming machine 1 (not shown).
Various circuit elements 341 including an MPU and a driver IC are mounted on the main board 34. The main board 34 is disposed with the surface on which the circuit elements 341 are mounted facing the back side of the image display device 3, It is fixed to the fixing plate 33. The main substrate 34 is fixed to the fixing plate 33 by forming a hole at the end of the main substrate 34 and screwing the fixing screw 343 into the screw hole formed in the receiving portion 331 of the fixing plate 33. It is done by combining.
In the present embodiment, a receptacle 342 constituting a board-to-board connector is provided in the approximate center of the main board 34.

The sub board 35 is connected to stand up to the circuit mounting surface of the main board 34 in the out-of-plane direction, and a CGROM 351 for storing characters to be displayed in the image forming area 311 is mounted on the sub board 35.
A plug 352 constituting a board-to-board connector is mounted on the back side of the sub-board 35 on which the CGROM 351 is mounted. By connecting the plug 352 to the receptacle 342, information stored in the CGROM 351 of the CGROM 351 is stored in the main board. It can be used by 34 MPUs.

By connecting the main board 34 and the sub board 35 in such a configuration, the circuit elements mounted on the sub board 35 such as the CGROM 351 can be seen from the side, and the circuit elements 341 mounted on the main board 34 are Since it can be visually recognized from an obliquely upper position avoiding the sub-board 35, the visibility of the circuit elements incorporated in the image display device 3 required for the pachinko gaming machine 1 can be ensured.
Further, by mounting the CGROM 351 on the sub board 35, when changing the picture to be displayed on the display device main body 31, it is only necessary to replace the sub board 35, and the work for changing the model of the old model is troublesome. Can be greatly reduced.

  The cover member 36 is formed of a transparent synthetic resin box-like body, and the flange portion 361 formed on the entire outer peripheral edge of the cover member 36 abuts on the bent piece 322 of the frame body 32. It is fixed to. Although illustration is omitted, for example, a paper to be sealed is pasted on the cover member 36 and the frame body 32 so as to straddle the outer peripheral surface thereof, and when the cover member 36 is removed from the frame body 32, the seal is removed. It can be seen that it has been torn and opened.

(1-3) Structure of Holding Means As shown in FIG. 3, the holding means is integrally formed on the inner surface of the cover member 36 at a position corresponding to the position of the sub board 35. The holding means is configured as a pair of protrusions 363 extending along the extending direction of the sub-board 35, and the sub-board 35 is inserted between the pair of protrusions 363, thereby preventing the sub-board 35 from falling down. It becomes possible. The pair of protrusions 363 can be formed at the same time when the cover member 36 is injection-molded, and the holding means does not necessarily need to be continuous protrusions, and sandwiches the sub-board 35. Protrusions may be integrally formed intermittently at such positions.

Further, when the cover member 36 is fixed to the frame body 32, the end surface of the sub-board 35 abuts so as to be lightly pressed by the inner surface of the cover member 36, and the pair of protrusions 363 and the cover member 36 abut on each other. The sub-board 35 is prevented from falling.
Thus, by forming the pair of protrusions 363 as holding means integrally in the cover member 36, the pair of protrusions 363 can be attached to the frame body 32 only by attaching and fixing the cover member 36 to the sub-board 35. Therefore, the assembling property of the image display device 3 is greatly improved. Further, since it is not necessary to form a notch that penetrates the inside and outside of the cover member 36, the inside of the cover member 36 can be secured, and dust and the like can be prevented from entering the inside.

[2] Second Embodiment Next, a second embodiment of the present invention will be described. In the following description, descriptions of parts or members already described are omitted or simplified.
In the first embodiment described above, the holding means for preventing the sub-board 35 from falling is configured as a pair of protrusions 363 integrally formed on the inner surface of the cover member 36.
On the other hand, in the second embodiment, as shown in FIG. 4, the holding means is formed integrally with the cover member 46, but notches 464 are formed around the pair of protrusions 463, The difference is that the bottom surface portion of the cover member 46 on which the protrusion 463 is formed is an urging portion 465.

That is, the holding means according to the second embodiment includes a pair of protrusions 463 that protrude from the inner surface of the cover member 46, and a biasing portion 465 that includes a bottom surface portion of the cover member 46 according to the position where the protrusions 463 are formed. It is configured with.
As in the case of the first embodiment, the protrusion 463 extends along the extending direction of the sub-board 35, and the notch 464 extends in the extending direction of the sub-board 35 out of a rectangle surrounding the pair of protrusions 463. It is formed leaving one side along the side, and the bottom portion of the cover member 46 functions as the urging portion 465 by bending the portion of the remaining one side. For this reason, although not shown, the inner surface depth dimension of the box-shaped cover member 46 is slightly larger than the height dimension when the sub board 35 is connected to the main board when the cover member 46 is fixed to the frame. It is set to a small dimension.

  Even with the holding means according to the second embodiment, when the cover member 46 is mounted on the frame of the image display device, the urging portion is obtained in addition to the same operation and effect as those according to the first embodiment. 465 bends in a direction projecting outward from the bottom surface portion of the cover member 46, whereby the sub board 35 is biased against the main board, and the sub board 35 is prevented from falling over the main board. Further, since the state where the sub board 35 is urged to the main board by the urging unit 465 is maintained, the connection portion of the board-to-board connector is pressed down, so that a reliable connection can be maintained. .

[3] Third Embodiment Next, a third embodiment of the present invention will be described.
In the first embodiment described above, the pair of protrusions 363 are simply formed on the inner surface of the cover member 36 as the holding means.
On the other hand, the cover member 56 according to the third embodiment is different in that the holding member is configured by an elastic member 563 as shown in FIG.
That is, on the inner surface of the cover member 56, a pair of protrusions 561 that extend along the extending direction of the sub substrate 35 and are sufficiently larger than the thickness dimension of the sub substrate 35 are formed. An elastic member 563 is mounted inside. The elastic member 563 is attached to the inner surface of the cover member 56 by being fixed to the inner surface of the cover member 56 with an adhesive or a double-sided tape.

The elastic member 563 is made of a soft material such as urethane rubber or urethane foam rubber, and when the cover member 56 is attached to the frame of the image display device, the elastic member 563 comes into contact with the end surface of the sub substrate 35 and deforms. The sub board 35 is prevented from falling due to the deformation of the elastic member 563 and is urged by the repulsive force of the elastic member 563 and pressed onto the main board.
Even with the holding means according to the third embodiment, the same effect as that of the first embodiment can be obtained, and the elastic member 563 can be functioned as the holding means simply by attaching and fixing the elastic member 563 to the cover member 56. The efficiency of assembling the image display device having the holding means is not impaired.

[4] Fourth Embodiment Next, a fourth embodiment of the present invention will be described.
In the holding means according to the second embodiment described above, the urging portion 465 is formed by cutting out the bottom surface portion of the rectangular cover member 46 surrounding the pair of protrusions 463.
In contrast, as shown in FIG. 6, the cover member 66 according to the fourth embodiment forms a notch groove 661 in which the sub board 35 is inserted into the cover member 66, and the sub board 35 is interposed between the notch grooves 661. The difference is that the holding means is configured by sandwiching the protrusion with the protrusion.
That is, the notch groove 661 is set as a width dimension W1 larger than the thickness dimension T of the sub-substrate 35, and is a notch having a length substantially corresponding to the length dimension of the sub-substrate 35 orthogonal to the width direction of the sub-substrate 35. Is formed.

A flexible portion 662 formed by bending the cover member 66 into a U-shaped cross section in the out-of-plane direction is integrally formed on the inner peripheral portion in the width direction of the notch groove 661, and the U of the flexible portion 662 is integrally formed. A claw portion 663 is integrally formed at the tip portion of the character, and the flexible portion 662 and the claw portion 663 function as holding means. The pair of claw portions 663 formed on both inner peripheral portions are inclined surfaces whose end portions in the insertion direction of the sub-board 35 are gradually separated toward the sub-board 35 side, so that the sub-board 35 can be easily inserted. ing.
In such a cover member 66, when the cover member 66 is attached to the frame body, the sub board 35 is inserted into the notch groove 661, and the flexible portion 662 expands outward in the width direction, while the front and back surfaces of the sub board 35 are paired with each other. The flexible portion 662 and the claw portion 663 function as a holding unit.
Also by the holding means according to the fourth embodiment, it is possible to receive the same operations and effects as the effects described in the first to third embodiments.

[5] Fifth Embodiment Next, a fifth embodiment of the present invention will be described.
In the first to fourth embodiments described above, the holding means is formed integrally with the cover members 36, 46, 56 and 66.
On the other hand, the image display device 7 according to the fifth embodiment is different in that a holding unit 77 is provided on the main substrate 34 independently as shown in FIG. In other words, the cover member 76 is formed as a box-like body having a flat bottom surface, and no projection is formed to serve as a holding means.

The holding means 77 is made of an insulating material such as polycarbonate or ABS resin, and includes a base portion 771, an upright portion 772 as a rigid body portion, and a locking portion 773, and is attached to the circuit mounting surface of the main board 34 by a fixing screw 774. It is fixed.
The base 771 has a length that is substantially the same as the length of the sub-board 35 in the direction along the circuit mounting surface of the main board 34, and both ends thereof are fixed by fixing screws 774. For this reason, the fixing plate 73 on which the main substrate 34 is supported and fixed has a second receiving portion 732 formed at a position corresponding to the arrangement of the holding means 77 in addition to the receiving portion 731 for fixing the main substrate 34. The screw 774 passes through the main board 34 and is screwed and fixed to a screw hole formed in the second receiving portion 732.

The standing portion 772 is configured as a plate-like body that rises out of the plane from the base portion 771. When the receptacle 342 provided on the main substrate 34 and the plug 352 provided on the sub-substrate 35 are connected, this rectangular plate shape is formed. The upright portion 772 is disposed so as to straddle these connecting portions and functions as a rigid body portion.
The locking portion 773 is configured as an arm-like body that protrudes in the out-of-plane direction of the rectangular plate-like standing portion 772, is provided at the rectangular four corner portions of the standing portion 772, and has the four corner end portions of the sub-board 35 to be mounted. It is designed to grip. A bent claw portion 775 is formed at the distal end portion of the locking portion 773, and each claw portion 775 holds both ends of the main board 34 on the normal direction side to hold the sub board 35.
When attaching such holding means 77, the sub board 35 is mounted on the main board, then the holding means 77 is attached to the sub board 35, and the holding means 77 is fixed on the main board by the fixing screws 774.

  According to the holding means 77 according to the fifth embodiment, it is possible to prevent the sub-board 35 from falling regardless of the presence or absence of the cover member 76. Therefore, the cover member 76 such as a pachinko gaming machine is essential. In addition to the image display device 7 that is used, a general-purpose image display device other than this can reliably prevent the sub-board 35 attached perpendicularly to the main board 34 from dropping off. In particular, since the standing portion 772 as the rigid body portion is disposed across the connection portion of the board-to-board connector, it is possible to reliably prevent the main board 34 and the sub board 35 from being disconnected due to vibration or the like. it can.

[6] Sixth Embodiment Next, a sixth embodiment of the present invention will be described.
In the holding unit 77 according to the fifth embodiment described above, the locking portions 773 are formed so as to grip both ends of the sub-substrate 35 in the normal direction of the main substrate 34.
On the other hand, as shown in FIG. 8, the holding means 87 according to the sixth embodiment has the locking portions 873 so as to be ashamed of both ends of the sub board 35 in the direction along the circuit mounting surface of the main board 34. It differs in that it is formed.

That is, in the holding means 87, the base portion 871 and the upright portion 872 have substantially the same configuration as that of the fifth embodiment, and the point that the holding means 87 is fixed through the main board 34 by the fixing screw 774 is the same as that of the fifth embodiment. However, the locking portions 873 are provided at both end portions in the direction along the circuit mounting surface of the main board 34. The front ends of the respective locking portions 873 are bent inward to form claw portions 875.
According to the holding means 87 according to the sixth embodiment, the same actions and effects as those described in the fifth embodiment can be enjoyed, and the holding means 87 is inserted from the connecting direction of the connector. And the assembling property is further improved.

[7] Modification of Embodiments The present invention is not limited to the above-described embodiments, and includes the following modifications.
In the above embodiment, the image display device according to the present invention is used for the pachinko gaming machine 1, but the present invention is not limited to this, and the present invention may be applied to other gaming machines such as so-called pachislot machines and arrangement balls. In addition, it is possible to employ the present invention as a general image display device as well as such a gaming machine.

Moreover, in the said embodiment, although the display apparatus main body 31 was comprised as a liquid crystal display device, even if it uses this invention for self-luminous type image display apparatuses, such as not only this but an organic electroluminescent display and a plasma display. Good. Note that such a self-luminous image display device does not require a backlight, and thus can be made thinner and lighter.
Furthermore, in the above embodiment, the CGROM 351 is configured to be mounted on the sub-board 35. However, the circuit board is not limited to this, and other circuit elements may be mounted on the sub-board as long as the circuit elements are necessary for controlling the image display device. May be implemented.
In addition, the present invention may have other structures as long as the object of the present invention can be achieved.

  The present invention can be suitably used for other gaming machines such as a pachislot machine in addition to a pachinko gaming machine having a jackpot lottery function.

DESCRIPTION OF SYMBOLS 3 ... Image display apparatus, 31 ... Display apparatus main body, 34 ... Main board | substrate, 35 ... Sub board | substrate, 77, 87 ... Holding means, 311 ... Image formation area, 342 ... Receptacle (connector), 351 ... CGROM (memory), 352 ... Plug (connector), 363, 463 ... Projection, 465 ... Biasing part, 563 ... Elastic member, 662 ... Flexible part, 663 ... Claw part, 771, 872 ... Standing part (rigid part), 773, 873 ... Locking part (gripping part).

Claims (4)

An image display device comprising a display device body having an image forming area for forming an optical image in accordance with input image information,
A main board that is arranged on the back side of the display device main body so as to extend along the image forming region, and performs drive control of the display device main body;
A sub-board connected to a connector provided on the circuit element mounting surface of the main board and arranged to stand up from the circuit element mounting surface,
Holding means for suppressing the movement of the sub board inserted in the connector in the falling direction ;
The holding means is
A rigid body part mounted on the main board along the connector and provided to straddle the connection part of the connector;
An image display device comprising: a grip portion that extends from the rigid portion to an end portion of the sub-board and engages the end portion of the sub-board . The image display device according to claim 1,
The image display device , wherein the gripping unit grips both ends of the sub-board in the normal direction of the main board . The image display device according to claim 1 ,
The image display device , wherein the gripping part grips both ends of the sub-board in a direction along the circuit element mounting surface . The image display device according to any one of claims 1 to 3 ,
An image display device, wherein a memory on which characters to be displayed in the image forming area are recorded is mounted on the sub-board.

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