JPH09155019A - Rotary pattern display device for pattern matching game machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rotary pattern display device for game machine with which the positions of patterns can be easily and exactly recognized even when rotary pattern display belts are dirty. SOLUTION: Three pattern display parts 4 are parallelly provided. Each pattern display part 4 is composed of a fitting plate 6, pattern display belt 5, stepping motor 8 and photosensors 12 and 13. The stepping motor 8 is fitted to the fitting plate 6. The pattern display belt 5 is hung on the stepping motor 8 and rotated while holding its terminal part while extending it. The photosensors are provided while facing each other with the pattern display belt 5 between. Plural patterns are drawn on the outer peripheral surface of light transmissible pattern display belt 5, and a light shielding mark is provided at the terminal part corresponding to these patterns.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary symbol display device for a game combination game machine in which a pattern is changed by driving a motor or the like provided in the game machine.

[0002]

2. Description of the Related Art Conventionally, in a rotary symbol display device which is provided on a game board of a gaming machine, for example, a pachinko machine, and in which a symbol is mechanically changed by the rotation of a motor or the like, the position of the symbol drawn on the rotating body is changed. In order to detect and judge, a mark is provided on the rotating body at a position facing the design, and a method of optically reading the mark is used.

[0003]

However, in the rotary symbol display device having the above-mentioned configuration, if dirt adheres between the symbol position detection mark and the mark, there is a problem that the symbol position is erroneously recognized.

The present invention has been made to solve the above problems, and even if dirt is adhered between marks on a rotary member,
It is an object of the present invention to provide a rotating symbol display device having a structure that makes it difficult to erroneously recognize a symbol position.

[0005]

In order to achieve the above object, the first invention is that a mark portion for detecting and judging a symbol drawn on a symbol display belt of a rotating member is provided by a light-shielding member, other than the mark portion. It is composed of a light-transmitting body, and a mark is optically detected by a transmission type photosensor, and a processing means for invalidating the reading of the sensor is provided up to the next mark position calculated after the mark detection. It is a thing.

A second invention is characterized in that, in the first invention, it is automatically judged whether the home position is a normal position or a home position due to dirt, and only the normal mark is processed as the home position. It is a thing.

Therefore, after detecting the mark, the reading of the sensor is invalidated until the next calculated mark position, and further, whether the home position mark is regular or due to dirt is automatically determined, and only the regular mark is detected. By processing as the home position, it is possible to reduce erroneous recognition of stains between marks as marks, and it is possible to minimize positional deviation of the pattern due to stains.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view showing a pachinko machine as one embodiment of a gaming machine to which a rotating symbol display device is applied, and a rotating symbol display device 3 is arranged at approximately the center of a game board 2 of the pachinko machine 1. ing. The rotation symbol display device 3 is composed of a plurality of (three rows in the case shown) rotation display portions 4 to be described later, and rotation start when a ball is won at a specific start winning opening (not shown) on the game board 2. When a particular pattern drawn on each rotating body is lined up in one horizontal row or one diagonal row when stopped, a big hit state is established. In the big hit state, a specific variable winning opening (not shown) is opened, and a large number of prize balls are generated in a short time.

Next, the structure of the rotary symbol display device will be described with reference to FIGS. Figure 2 is a rotating symbol display device 3
FIG. 3 is a side sectional view showing a state in which is attached to the game board 2, and FIG. As shown,
The rotation symbol display device 3 is composed of three rows of rotation display portions 4, and each rotation display portion 4 is assembled on a mounting plate 6 and stored in a mounting storage box 7. More specifically, a stepping motor 8 and a drive pulley 9 connected to the stepping motor 8 are attached to the lower portion of the mounting plate 6, and a tension pulley 10 for extending the drive pulley 9 is provided at substantially the center. ,
An idle pulley 11 rotatably supported is attached to the upper part, and a symbol display belt 5 is rotatably attached to the outer periphery of these idle pulleys 11 by rotational driving of a stepping motor 8. In addition, the photo sensor A12 and the photo sensor B13 for symbol position detection are provided opposite to each other with the symbol display belt 5 interposed therebetween.

Further, the pattern display belt 5 is formed by forming a transparent film in a loop shape, and a plurality of patterns are drawn on the outer peripheral surface. Then, in order to optically judge the position of the drawn symbol, the mark 1 is placed at a position facing the symbol.
4 is provided, and a home position mark 14a having a length capable of simultaneously shielding light from the photosensors 12 and 13 is provided at a specific position on the entire circumference. 14b is a joint of the symbol display belt 5.

FIG. 4 is a perspective view of an essential part showing the positional relationship between the symbol display belt and the photo sensor. The belt symbol position detecting method will be described below with reference to FIG. First, when the drive pulley 9 is driven to rotate by the rotation of the stepping motor 8, the symbol display belt 5 rotates. This allows
When the mark 14 and the home position mark 14a provided at the position corresponding to the symbol cross between the photosensors A and B, the light is shielded to detect the mark 14 or the home position mark 14a as an electric signal, and each symbol is the home position. It will be specified by determining the number of mark from.

The rotation of the stepping motor 8 is transmitted from the drive pulley 9 to the symbol display belt 5 by frictional force, but if there is no slippage, each symbol depends on how many steps the motor is rotated from the home position detection. Can be stopped at a fixed position, and the mark need only be a home position at one specific position in one round. However, in practice, since slippage occurs, in the present embodiment, the mark 14 is provided at a position corresponding to each symbol, and the stop position is corrected with respect to the theoretical value by detecting the mark 14. However, if the amount of slippage is small, the mark of the symbol may be set at one position for two symbols, or at one position for three symbols.

By the way, when the game machine is continuously used for a long period of time, dust and the like around the pattern display belt are adsorbed to generate dirt. Therefore, for example, if stains are attached between the marks to shield the sensor from light, the stains are determined to be marks corresponding to the design, and the stop position is displaced. The present embodiment provides means for reducing the above problems, and a specific example thereof will be described below. FIG. 5 is a time chart of a specific example together with FIG. First, the case of general dirt between marks will be described with reference to the time chart of FIG. The photo sensor A mark detection signal (b) and the photo sensor B mark detection signal (c) are the mark detection signals of the photo sensors 12 and 13 arranged as shown in FIG. This 2
With the two photo sensor signals (b) and (c), the part that is turned on at the same time is processed as a home detection signal, but only the photo sensor B is used to detect and determine the position of the symbol. After the home is detected, the next mark should not exist for a certain period.
The mark detection invalid period is processed by a microcomputer (not shown). The next mark will be detected after the prescribed motor drive step pulse is applied, but in reality it is expected that it will differ from the theoretical value due to various conditions. Therefore, the mark detection is enabled several steps before the theoretical value, and the next mark detection is waited.

When there is dirt between the marks, an abnormal signal indicated by a broken line appears in the photosensor A mark detection signal (b) and the photosensor B mark detection signal (c), but the mark detection is performed during this period. Since it is an invalid period, it is ignored and only the next regular mark is recognized. Although it cannot be avoided if there is dirt within the mark detection effective period, it is possible to avoid it with a high probability because the position where the dirt is likely to occur is often specified such as the seam of the belt.

Next, with reference to the time chart of FIG. 6, the stains generated at the seams of the symbol display belt will be described. As described above, the place where dirt is likely to occur is the seam of the symbol display belt, but the dirt range around the seam may be so wide that it is recognized as the home position.
Since the symbol display belt is formed so that the first mark after the seam becomes the home position mark, when the dirt of the seam is detected as the home position, the time chart is indicated by a broken line. Therefore, after the home detection signal (d) is detected to be ON, home correctness determination processing is performed after a certain period of time, and when the home detection signal is detected to be ON again within the determination period, the previous home detection signal becomes dirty. Therefore, it can be determined that the next home detection signal is a regular home detection signal. Moreover, when the home detection signal does not turn on within the determination period, it can be determined that the home detection signal is a regular home detection signal. The start and end timings of the home correctness determination are set by defining the motor drive step pulse number between the symbol display belt seam and the first mark position and the maximum value of the dirt range.

By the way, although the above embodiment has been described with respect to a pachinko machine, it goes without saying that it is also applicable to a gaming machine such as a slot machine.

[0017]

As described above, according to the present invention,
Since the photo sensor B is processed by the microcomputer or the like so as to make an invalid judgment between the marks, even if dirt is attached between the marks indicating the symbol position of the rotating body to shield the photo sensor from the mark, the stop is stopped. It is possible to almost surely suppress the problem that the position shifts.

[Brief description of the drawings]

FIG. 1 is a front external view of a pachinko machine of the present invention.

FIG. 2 is a side sectional view of a main portion of the symbol display portion of the present invention.

FIG. 3 is a front view of a main part of the symbol display belt of the present invention.

FIG. 4 is a perspective view of relevant parts showing a relational position between the symbol display belt and the photo sensor of the present invention.

FIG. 5 is a mark detection valid / invalid determination time chart of the present invention.

FIG. 6 is a home correctness determination time chart of the present invention.

[Explanation of symbols]

 2 game board 3 rotation pattern display device 4 rotation display section 5 pattern display belt 8 stepping motor 9 drive pulley 12 photo sensor A 13 photo sensor B 14 mark 14a home position mark 14b seam

Claims (2)

[Claims] 1. A rotary symbol display device provided with a game machine, in which the symbols fluctuate, wherein the device has symbol display portions arranged in a plurality of rows, and the symbol display portion is a mounting plate and this. A motor attached to the, a translucent symbol display belt rotatably by the motor, and an optical reading detection section oppositely arranged with the symbol display belt sandwiched between the symbol display belt and the outer periphery. It has a symbol arranged on the surface and a light-shielding mark opposite to the symbol position at one side end, and has a processing means for setting a certain period after the mark is detected as a mark detection invalid period. A rotating symbol display device for a gaming machine, which is characterized by that. 2. The rotating symbol display device for a symbol combination gaming machine according to claim 1, wherein it is determined whether the home position mark is normal or due to dirt, and processing means for recognizing only the normal mark as the home position. A symbol display device for gaming machines, which has a feature.