JP2518345Y2 - Variable winning device for pachinko machines - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) This invention has an opening / closing member that is connected to an electric drive means and can be converted into a closed state in which it is difficult to receive a hit ball and an open state in which it is easy to accept a hit ball. The present invention relates to a variable prize winning device of a type.

(Prior Art) Conventionally, there is known a variable prize winning device including an opening / closing wing piece or an opening / closing member such as an opening / closing door that can be converted into a closed state in which it is difficult to receive a hit ball and an open state in which it is easy to accept a hit ball. . In this kind of prize winning apparatus, when a hit ball wins a starting winning opening, the opening / closing member is converted into an open state regulated by time or the number of times by the operation of an electric drive means, and the hit ball is V winning during the open state. When the player wins in the mouth, the opening / closing member is generally adapted to be converted into an open state which is more advantageous for the player. For example, when a hit ball wins the starting winning opening, the electric drive means is actuated, for example, for 0.4 seconds to convert the open / close wing pieces into the open state only once or twice for 0.6 seconds, and in the open state, the hit ball is V winning. When you win the prize, open and close the winglets for 0.8 seconds each
In addition to repeatedly opening and closing eight times, this continuous 18 times is regarded as one cycle, and the cycle can be updated up to eight times.

(Problems to be solved by the invention) By the way, in order to add more fun to the game with a simple method, increasing the number of times of updating the cycle is one effective means. However, if this is simply executed, the number of times of energization of the electric drive means increases, and accordingly,
The solenoid forming the electric drive means has a higher degree of heat generation than before. In that case, for example, the plastic parts around it are deformed or the solenoid itself becomes short-lived. Furthermore, there is a concern that adverse effects (malfunction, color modulation, etc.) may be caused on peripheral electric devices (microcomputers, color liquid crystal panels, etc.). As a countermeasure against this, it is conceivable to increase the number of turns of the coil of the solenoid to suppress heat generation, but this is not preferable due to the size of the solenoid and the installation space.

Therefore, the present invention has an object to alleviate the heat generation of the electric drive means by controlling the supply current to the electric drive means while using the current small solenoid.

(Means for Solving the Problems) The configuration of the present invention for achieving the above-mentioned object can be converted into a closed state in which it is difficult to receive a hit ball by being connected to an electric drive means and an open state in which it is easy to accept a hit ball. In the variable winning device having a different opening / closing member, the electric drive means switches the supply current to the opening / closing blade from an initial current required for the opening / closing member to start driving to a smaller supply current after the start of driving. It is characterized in that a switching means is provided.

(Operation) Since the electric drive means is provided with the switching means for switching the strength of the current, when the opening / closing member is converted from the closed state to the open state, first, the initial necessary for the opening / closing member to start the operation. A current is supplied, and a smaller current is supplied after the operation is started. That is, after the operation is started, inertia acts on the electric driving means, so that it is possible to continue the operation even if the electric current is switched to a smaller current than the initial supply current. Therefore, the heat generation of the electric driving means is reduced. You can

(Embodiment) An embodiment embodying the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a front view of a pachinko machine to which the present invention is applied. A metal frame 3, a glass door frame 4, a front plate 5 and the like are attached to the front frame 2 of the pachinko machine 1, and the back surface of the front frame 2 is also shown. A game board 6 is detachably attached to the. A guide rail 8 for guiding a hit ball and partitioning and forming a game area 7 is planted in a substantially circular shape on the game board 6. A variable winning device 9, which will be described in detail later, is attached to almost the center of the game area 7.
Below that, first start winning openings 101, 102 are arranged on the left and right, and a second starting winning opening 11 is arranged in the center between them. When a hit ball is won in the first start winning opening 101, 102, the opening / closing wing piece 12 (described later) of the variable winning device 9 opens and closes once, and when the hit ball is won in the second starting winning opening 11, the opening / closing wing piece 12 is opened. It is designed to open and close twice at short time intervals. Then, in order to detect the winning of the hit ball, the starting winning detection switches 13 to 15 are provided at the respective starting winning openings 101, 102 and 11.
(See FIG. 3) are provided.

Next, the variable winning device 9 will be described with reference to FIG.
The variable winning device 9 is a mounting plate 16 mounted on the game board 6.
And a pair of left and right wing pieces 12 are attached to the front surface of the wing piece 12 so as to be opened and closed. In addition, below the open / close wing pieces 12, a plurality of winning openings are arranged side by side in a portion located in the middle of these, the V winning opening 17 is in the center, and the general winning openings 18, 18 are on both sides. ing. Both of the open / close blades 12 are rotatable in a vertical plane about a support shaft 19 attached to the back side of the central portion thereof. Further, the tip ends of both the support shafts 19 extend to the back side of the mounting plate 16, and a solenoid 22 constituting an electric drive means 21 (see FIG. 3) is provided at an end portion thereof via a link mechanism 20. It is connected. Therefore, when the solenoid 22 is demagnetized, the open / close wing pieces 12 are upright by the coil spring 24 that biases the plunger 23 and is in a closed state that does not receive a hit ball (shown by a solid line in FIG. 2). State). On the other hand, when the solenoid 22 is excited and the plunger 23 is pulled up, both opening and closing wing pieces 12 fall through the link mechanism 20 to a substantially horizontal position as shown by the imaginary line in FIG. Converted to state.

When the ball hits the V winning opening 17 in the open state, a so-called special winning state is achieved in which the opening and closing of the opening / closing wing piece 12 are repeated a predetermined number of times continuously at short time intervals. The V winning opening 17 is provided with a V winning detecting switch 25 (see FIG. 3) for detecting the winning of the V winning opening 17. Although not shown in detail,
The hit balls that have won the V winning opening 17 and the hit balls that have won the general winning opening 18 are collected in one place, and the winning ball detection switch 26 counts the total of these winning balls.

The control circuit for driving the variable winning device 9 is the third
It is configured as shown in FIG. 4 and FIG. 4, and the starting winning detection switches 13 to 15 for the first and second starting winning openings 101, 102, 11 and the winning ball detection switch 26 for the changing device 9 and the V winning opening 17 are formed. The V winning ball detection switch 25 for
Each is connected to the input port side of the microcomputer 28 via a waveform shaping circuit 27 including a flip-flop for preventing chattering. Further, an electric drive means 21 described below is connected to the output port side of the microcomputer 28.

FIG. 4 shows a circuit configuration of the electric driving means 21. The microcomputer 28 has a resistor 29, a transistor 31 whose collector is supplied with current from a power source (not shown) through the resistor 30, and the transistor 31. Transistor 32 connected to Darlington with its emitter grounded
The Darlington circuit 33 constituted by and is connected. The transistors 31 and 32 are turned on by a high level signal output from the microcomputer 28 when the starting winning ball detecting switches 13 to 15 or the V winning ball detecting switch 25 is turned on.

One end of the solenoid 22 is connected to the collector of the transistor 32, and the other end of the solenoid 22 is connected to a solenoid driving power source via a resistor 34. A diode 36 is connected in parallel to the solenoid 22 as a measure against surge. Further, a capacitor 35 having a predetermined capacity is interposed between the solenoid 22 and the resistor 34. However,
The capacitance of the capacitor 35 is set so that the electric charge necessary for starting the attraction of the plunger 2 of the solenoid 22 can be accumulated.

In this embodiment, the resistance value of the resistor 34 is the solenoid 22
It is set to almost the same value as the resistance of the coil.

Next, the function and effect of this embodiment will be described. Both the transistors 31 and 32 of the Darlington circuit 33 are in the off state in the state where the hit ball is not won in the first and second starting winning openings 101 and 102, and therefore the capacitor 35 has the same potential as the power supply voltage (V) at this time. Is charged until.

When a ball hits the first or second starting winning opening 101, 102, the corresponding starting winning detection switches 13 to 15 are closed, and the detection signal is input to the microcomputer 28 via the waveform shaping circuit 27. The microcomputer 28 performs arithmetic processing based on this signal, and outputs a high level signal when a certain condition is satisfied.
1,32 are turned on in sequence. Then, as described above, since the capacitor 35 is charged with the same voltage (V) as the power supply voltage, when the both transistors 31 and 32 are turned on, the capacitor 35 causes the solenoid 22 to have a voltage (V) equal to the power supply voltage. ) Can be added. As a result, the magnetomotive force required to start the attraction of the plunger 23 is obtained in the solenoid 22, and the attraction operation of the plunger 23 is started. Then the capacitor 35
Gradually decreases the voltage, and after a predetermined time (after the elapse of the time determined based on the time constant), discharge is performed until the voltage becomes equal to the voltage (divided voltage) obtained by subtracting the voltage drop due to the resistor 34 from the power supply voltage. Then, thereafter, the divided voltage is applied to the solenoid 23 from the power supply. As described above, in this embodiment, the resistance of the coil of the solenoid 22 is set to almost the same value as the resistance 34.
After the suction operation of 23 is started, the current applied to the solenoid 22 is reduced to about half. Therefore, the solenoid 22
However, once the suction operation of the plunger 23 is started, inertia acts on the plunger 23, so that it is possible to continue the suction state of the plunger 23 by supplying a smaller current thereafter. Both open / close wing pieces 12 are in the open state. As described above, in the first embodiment, the capacitor 35 plays a role of switching the magnitude of the current supplied to the solenoid 22, and thereby the heat generation of the solenoid 22 is alleviated.

On the other hand, when the microcomputer 28 outputs a low-level signal after the attraction of the plunger 23 is completed, which turns off both the transistors 31 and 32, the energized state of the solenoid 22 is released, and the plunger 23 is returned by the coil spring 24. Both open / close blades 12 are again in the open state. Then, when both the transistors 31 and 32 are turned off, the capacitor 35 is charged again with the same voltage as the power supply voltage.

Further, when the hit ball wins the V winning opening 17 during the open state, the opening and closing operations of both the opening and closing blade pieces 12 are repeated a predetermined number of times as described above. Therefore, the solenoid 22 is repeatedly energized / stopped the same number of times, but as described above, the supply current to the solenoid 22 becomes the minimum current necessary for continuing the attraction of the plunger 23 from immediately after the attraction of the plunger 23 is started. Since the switching is performed, the heat generation in the solenoid 22 is effectively alleviated even when the energization is repeated many times. As a result, the peripheral plastic parts are thermally deformed or the life of the solenoid itself is extended, and adverse effects on the peripheral electronic parts can be avoided.

FIG. 5 shows another circuit configuration of the electric drive means. Between the microcomputer 28 and the solenoid 22, the first Darlington circuit 41 (resistors 37, 38 and transistors 39, 40 are provided. The role of switching means as will be described later) is connected to a second Darlington circuit 46 composed of resistors 42 and 43 and transistors 44 and 45. Further, the second Darlington circuit 46 and the solenoid 22 are connected to each other. A resistor 47 for limiting current is connected between the two.
The point that the diode 36 is connected in parallel to the solenoid 22 is the same as the above-described embodiment.

In the above circuit, when a hit ball is won in one of the first and second starting winning openings 101, 102, 11 and a high level signal output from the microcomputer 28, the transistors 39, 40 are turned on in sequence, Solenoid 2
2 is excited and the suction of the plunger 23 is started. Immediately after the suction is started, a low level signal is output to the transistor 39 and a high level signal is output to the transistor 44, which turns off the first Darlington circuit 41 and the second Darlington circuit 46. Can be switched on. By this switching, a smaller current (minimum current required to attract the plunger 23) is supplied to the solenoid 22 by the current limiting resistor 47. That is, when the plunger 23 starts suction, a current flows to the side of the first Darlington circuit 41 which does not have a current limiting resistor, so that a sufficient current is supplied to the solenoid 22 for starting the operation, but the second Darlington circuit 46. After switching to, the solenoid 22 will remain in the excited state with the supply current limited by the resistor 47, and even if the energization is repeated many times, the heat generation of the solenoid 22 is effective. Can be relaxed.

In order to prevent the current supply to the solenoid 22 from being momentarily cut off when switching between the two Darlington circuits 41 and 46, the second Darlington circuit 46 is kept on while the first Darlington circuit 41 is turned on. The side may be turned on and the one side 41 may be turned off. Alternatively, both of them may be turned on from the beginning, and the first Darlington circuit 41 side may be turned off later.

Further, in this example, the variable winning device having the opening / closing wing piece as the opening / closing member has been described, but the present invention is not limited to this, and the present invention is not limited to this as long as it has a member that repeats opening / closing. It is widely applicable to various types of variable winning devices.

(Effects of the Invention) The effects of the present invention are as follows.

After the electric drive means starts operating once, a smaller current is supplied by the switching means, so that even if the electric drive means repeatedly operates, it is possible to mitigate the heat generation situation compared to the conventional case. Therefore, the life of the electric drive means can be extended. In addition, it is possible to avoid thermal deformation of peripheral parts and further avoid a situation in which the electric device is adversely affected by heat.

Further, since it is possible to reduce heat generation without using a large-sized electric driving means, it is possible to use the current small-sized electric driving means as it is.

Thus, it is possible to substantially increase the number of repetitive operations of the electric drive means, and thus the game can be made more interesting.

[Brief description of drawings]

FIG. 1 is a front view of a pachinko machine, FIG. 2 is a perspective view of a variable winning device, FIG. 3 is a block diagram showing an electrical configuration for opening and closing opening and closing blades, and FIG. 4 is an electrical drive means. FIG. 5 is a circuit diagram showing the configuration, and FIG. 5 is a circuit diagram showing another configuration example of the electric drive means. 1 ... Pachinko machine 9 ... Variation winning device 12 ... Opening / closing blade (opening / closing member) 21 ... Electrical driving means 22 ... Solenoid

Claims (1)

(57) [Scope of utility model registration request] 1. A variable winning apparatus having an opening / closing member which is connected to an electric driving means and can be converted into a closed state in which a hit ball is not easily received and an open state in which a hit ball is easily received, wherein the electric driving means is opened / closed. A variation winning device for a pachinko machine, comprising switching means for switching the supply current to the member from an initial current required for the opening / closing member to start driving to a smaller supply current after the start of driving.