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1. Field of the Invention

The present invention relates to a gaming machine including a liquid crystal display.

2. Description of the Related Art

A recent slot machine including stop buttons (a so-called “pinball slot machine” or a so-called “Pachi-Slot machine” in Japan) has a mechanical variable display means provided with a plurality of rotation reels for variably displaying symbols in a front display window or an electric variable display means for displaying symbols on reels on a screen. As the player performs start operation, control means controls the variable display means for rotating the reels, thereby producing variable display of symbols. Then, the rotatable reels are stopped in order automatically in a given time or as the player performs stop operation. At this time, if the symbols on the reels appearing in the display window become a specific combination (winning symbol combination), game medium such as medals or coins are paid out to the player as the prize of the win.

In the current mainstream model, a cabinet of a gaming machine has a door that can be opened and closed and a display panel section is provided in front of the door. The display panel section is provided with a display window for the player to visually observe symbols on reels, and further a display screen of a liquid crystal display is provided in a lower position of the display window. On the other hand, a liquid crystal display control board covered with a transparent resin case is attached to the rear of the door. In the gaming machine in the related art, the four corners of the liquid crystal display control board are fixed at positions lower than the display screen on the rear of the door. The attachment of the display control board is generally made by fixing the four corners of the liquid crystal display control board with screws.

The above structure is disclosed in JP-A-2001-170249 (see FIG. 5, etc.).

However, in the gaming machine in the related art, the four corners of the liquid crystal display control board are fixed with screws. Therefore, there is a problem that when the liquid crystal display control board is attached or detached, the board needs to be positioned and attached while it is held.

It is an object of the invention to provide a gaming machine for facilitating work of attaching and detaching a liquid crystal display control board and reducing the number of steps.

In order to achieve the above object, according to the invention, there is provided a gaming machine including: internal lottery means (for example, main control circuit 71) configured to determine an internal lottery of a game with a random number at a predetermined timing; display means (for example, liquid crystal display 5) configured to display an effect image pertinent to the game; display control means (for example, liquid crystal display control board 720a) configured to control the display means; and attachment means (for example, hooks 223a and 223b, projections 724a and 724b formed with attachment holes, and a plastic fastener (such as a snap fit)) configured to attach the display control means on a cabinet of the gaming machine.

According to the configuration, the display control means is attached onto the cabinet and thus can be temporarily tacked to the cabinet using the attachment means and can be positioned. As the display control means is temporarily tacked, the attachment work of the display control means is facilitated and further the number of fixed parts can be reduced, so that the number of fixing steps can be decreased. Therefore, the assembling and disassembling work of the gaming machine is eased. Since detachment work is also easy to conduct, it is suited for recycling the display control means.

In the gaming machine of the invention, the attachment means may have a hook (for example, hook 223a, 223b) provided on the display control means or the cabinet and a hook hole (for example, attachment hole of projection 724a, 724b) formed on the cabinet or the display control means.

According to the configuration, the display control means can be temporarily tacked to the cabinet simply by inserting the hook into the hook hole. Thus, the display control means can be easily attached and detached as compared with the case where immediately the display control means is fixed to the cabinet. Therefore, the assembling and disassembling work of the gaming machine is eased. It is also suited for recycling the display control means.

In the gaming machine of the invention, the display control means may be hooked at an upper end of the cabinet (for example, upper end of the rear of door 200a of the cabinet) using the hook and the hook hole and may be fixed at a predetermined point.

According to the configuration, the display control means is disposed at the upper end of the cabinet and is hooked using the hook and the hook hole and further is fixed with a screw and the like, so that while the necessary number of steps is decreased, the display control means can be temporarily tacked and positioned before it is reliably fixed. Therefore, the assembling and disassembling work of the gaming machine is eased. It is also suited for maintaining and recycling the display control means.

In the accompanying drawings:

FIG. 1 is a drawing to show a first embodiment of a gaming machine according to the invention and is a perspective view to show the appearance of a pinball slot machine as gaming machine;

FIG. 2 is a perspective view to show the appearance of the pinball slot machine with reels displayed in the first embodiment of the invention;

FIG. 3 is a drawing to show the rear of a door in the first embodiment of the invention;

FIGS. 4A and 4B are drawings to show a part of a cabinet and the back of a liquid crystal display control board attached to the cabinet in the first embodiment of the invention;

FIGS. 5A and 5B are drawings to show a method of attaching the liquid crystal display control board in the first embodiment of the invention;

FIG. 6 is a drawing to show the configuration of a liquid crystal display in the first embodiment of the invention;

FIG. 7 is a drawing to show symbol rows drawn on the outer peripheral surfaces of the reels in the first embodiment of the invention;

FIG. 8 is a drawing to show prizes and numbers of payout medals corresponding to winning symbol combinations in the first embodiment of the invention;

FIG. 9 is a block diagram to show the configuration of a main control circuit in the first embodiment of the invention;

FIG. 10 is a drawing to show a winning stop control table used when internal winning of small prize is accepted in the first embodiment of the invention;

FIG. 11 is a drawing to show a forward push, center push losing stop control table used when internal winning of small prize is accepted in the first embodiment of the invention;

FIG. 12 is a drawing to show a reverse push losing stop control table used when internal winning of small prize is accepted in the first embodiment of the invention;

FIG. 13 is a block diagram to show the configuration of a sub-control circuit in the first embodiment of the invention;

FIGS. 14A and 14B are drawings to show a part of a cabinet and the back of a liquid crystal display control board attached to the cabinet in a second embodiment of the invention;

FIGS. 15A and 15B are drawings to show a method of attaching the liquid crystal display control board in the second embodiment of the invention; and

FIG. 16 is a drawing to show a method of attaching a liquid crystal display control board in a third embodiment of the invention.

Referring now to the accompanying drawings, there are shown preferred embodiments of the invention.

FIG. 1 shows a first embodiment applying a gami

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