JPH0596045A - Discharge device of pinball machine - Google Patents

Abstract

PURPOSE:To stabilize fine adjustment of ball hitting force of a pinball discharge device. CONSTITUTION:The device is constituted so that a variation characteristic of a power supply voltage value applied to an operational amplifier 46 does not depend on a fluctuation of a resistance value of a variable resistor 43 by placing the variable resistor 43 between a power source circuit 44 and an earth E and applying a supply voltage of the power source circuit 44 divided by a sliding terminal 45 of the variable resistor 43 to an input terminal of the operational amplifier 46.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a launching device for a pachinko machine used for launching a game pachinko ball loaded into a pachinko machine onto a game board.

[0002]

2. Description of the Related Art Due to the nature of a game, a pachinko game may be aimed at a specific place on a game board, and obtaining a desired hitting force is one of the important factors for enjoying a pachinko game. Some pachinko machine launching devices include a solenoid, and a conventional example of this type of pachinko machine will be described below.

FIG. 7 shows a schematic structure of a general pachinko machine, and a launcher of the pachinko machine is provided below the pachinko machine 1. Reference numeral 2 denotes an outer frame, and the outer frame 2 is for mounting the pachinko machine 1 at a predetermined position in a game hall (not shown). 3 is a mechanism frame, the mechanism frame 3 is provided with various mechanism parts such as a prize ball payout device (not shown) on the back side, and the game board 4
Is detachably accommodated (see FIG. 8). Reference numeral 5 denotes a front frame for mounting the mechanism frame 3, and the front frame 5 is attached to the outer frame 2 so as to be openable and closable.

Reference numeral 6 is a glass frame which is attached to the front frame 5 so as to be openable and closable, 7 is a throwing ball supply device, and 8 is a cylinder lock. The game board 4 is provided with a safe hole 9 and an out hole 10. 11 is a pachinko ball firing mechanism.

The firing mechanism 11 is a solenoid as shown in FIG.
12 and plungers (movers) and 13 are main components, and the tip of the plunger 13 is provided with a punch tip 14. The solenoid 12 causes the punch 14 to collide with the pachinko ball by attracting the plunger 13 during excitation, so that the pachinko ball is hit to the game board 4 along the firing band 18. Pestle
14 is formed in a truncated cone shape and is made of elastic synthetic resin and polyurethane.

A stopper 15 is formed on the plunger 13, and a spring 16 is provided between the stopper 15 and the solenoid 12.
Is installed. As a result, when the energized solenoid 12 is demagnetized, the spring 16 returns the plunger 13 to its original position by its elasticity. The solenoid 12 operates the throwing ball supply device 7 by the above-described excitation and demagnetization operations, and the throwing ball supply device 7 synchronizes with the operation of the solenoid 12 and puts one throwing ball at a rate of about 100 throwing balls per minute. The ball introduction gutter 17 shown by a line supplies the firing band 18.

Reference numeral 19 is a firing mechanism 11 and a firing band 18.
Is a reference plate for fixing to the mechanism frame 3, 20 is a collection port for the throwing ball, and the throwing ball communicates with the lower plate shown at 21 in FIG. The game board 4 is mounted on the reference plate 19. Reference plate 19
The firing band 18 is installed diagonally on the front of the
Launching mechanism 11 facing the launching position formed at the lower end of the slope 18
And the throwing ball supply device 7 is provided in the vicinity of the firing mechanism 11. In FIG. 7, 22 is an upper plate, 23 is a launch ball introducing port communicating with the upper plate 22, the launch ball introducing port 23 is communicating with the upper plate 22, and the throwing ball is from the communicating port 24 of the ball introducing trough 17. Supply.

Reference numeral 25 denotes a foul ball recovery port, which is returned to the lower plate 21 through the recovery port 25. Reference numeral 26 is a guide band, and the guide band 26 receives a pachinko ball (hereinafter referred to as a launch ball) launched by the launching mechanism 11 from an end portion on the launch band 18 side and guides it to the game board 4 from the other end. The illustration of the obstacle nail is omitted.

27 is a prize ball receiving trough, and the prize ball receiving trough 27 causes the prize balls dispensed from the prize ball dispensing device to flow down to the upper plate 21. Reference numeral 28 denotes a handle device, and the handle device 28 has an operating portion projecting from the front side of the front frame 5. The handle device 28 is based on the operation of the player and is based on the conventional solenoid 12 shown in FIG.
Operate the control circuit of.

This control circuit mainly comprises a power supply circuit 29, a firing pulse generation circuit 30, an operational amplifier 31, and a variable resistor 32. The power supply circuit 29 is an AC power supply of 24 V and supplies electric power to each part of the pachinko machine 1. Reference numeral 33 is a handle touch detection circuit, and 34 is a handle touch detection unit. The surface portion of the handle touch detection unit 34 is made of a good electrical conductor, and is provided outside the handle device 28 at a position where a player can easily grip.

When the handle touch detection unit 34 is gripped together with the handle device 28, the handle touch detection circuit 33 determines whether or not the player has started a game based on the change in the capacitance caused by the grip. To detect. When the steering wheel touch detection circuit 33 detects the start of a game, the enable signal is input to the firing pulse generation circuit 30 from the steering wheel touch detection circuit 33.

On the basis of the input of the enable signal, the firing pulse generation circuit 30 generates a pulse signal for intermittently exciting the solenoid 12, and the firing pulse generation circuit 30, that is, the sending side of the control circuit, supplies the photo coupler 35 with the pulse signal. input. As a result, the light emitting diode 36 of the photocoupler 35 becomes conductive and emits light at the same time, and this light is received by the phototransistor 37 of the photocoupler 35 and converted into an electric signal.

For this reason, since power corresponding to the pulse signal is supplied from the power supply circuit 29 to the receiving side of the control circuit, the transistors 38 and 39 are sequentially turned on, and the solenoid 12 is powered by the power corresponding to the pulse signal. Excited and demagnetized. Therefore, the punch tip 14 collides with the pachinko ball, and the pachinko ball is struck on the game board 4 with a predetermined hitting force.

The hitting force depends on the value of the voltage applied to the solenoid 12, and the value of the voltage applied to the solenoid 12 is an operational amplifier 31, a variable resistor 32, an FET 40, a transistor 41 and fixed resistors connected to the periphery of these. R, variable resistor V
It is set by R, capacitor C, diode D, etc. The rough hitting force is adjusted by the variable resistor VR, and the variable resistor VR is provided at a position where the player cannot operate it. In addition, delicate adjustment of the ball striking force is a variable resistor 32
It is done by (described later). The variable resistor 32 is interposed between the power supply terminal V of the power supply circuit 29 and the ground (ground) terminal E via the FET 40 and the transistor 41, and its operating element is resistance while the player grips the handle device 28. It is placed at a position where the value can be easily changed. When the operator of the variable resistor 32 is operated, the power supply terminal V of the power supply circuit 29
And the amount of current flowing between the ground terminal E increases and decreases,
The operational amplifier 31 amplifies the electric power supplied from the power supply circuit 29 with a predetermined amplification factor according to the generation of the pulse signal, and increases or decreases the voltage value applied to the solenoid 12.

Reference numeral 42 denotes a stop switch, which is built in the handle device 28 or provided in the vicinity of the handle device 28, and is arranged so that it can be easily operated by the player. The stop switch 42 separates the power supply Vcc on the firing pulse generating circuit 30 side and the photocoupler 35 from each other to temporarily stop the generation of the pulse signal from the firing pulse generating circuit 30. This allows the solenoid 12
Since the power supply to the player is stopped, the player can temporarily stop the firing of the pachinko ball by operating the stop switch 42. r and d are fixed resistors and diodes for protecting the control circuit on the side of the firing pulse generation circuit 30, respectively.

FIG. 11 is a simplified diagram of a main part of an electric circuit for adjusting the hitting force of a pachinko ball by the solenoid 12. In FIG. 11, the variable resistor 32 has an operational amplifier 31 at one end.
Input terminal (inverting input terminal) and the fixed resistor R0 are connected in parallel, and the other end is connected to the power supply terminal V. In the electric circuit having such a configuration, the power supply voltage value V1 applied to the input terminal of the operational amplifier 31 is represented by the following formula.

V1 = V × R0 / (R0 + R) ... From this equation, the voltage applied to the input terminal of the operational amplifier 31 is fixed at the sum of the resistance value R of the variable resistor 32 and the resistance value of the fixed resistor R0 and fixed. The voltage applied to the operational amplifier 31 can be adjusted by changing the resistance value R based on the operation of the variable resistor 32 depending on the ratio with the resistance value of the resistor R0. From this fact, the amplification factor of the operational amplifier 31 is changed based on the operation of the variable resistor 32, so that the voltage value applied to the solenoid 12 is increased or decreased, and the hitting force can be changed.

[0018]

However, in the conventional pachinko machine launching apparatus having the above configuration, when the variable resistor 32 is operated, the power supply voltage value based on the operation of the variable resistor 32 is calculated from the equation. The change characteristic of V1 does not become smooth, and it becomes difficult to adjust the amplification factor of the operational amplifier 31 in accordance with the operation amount of the variable resistor 32. As a result, the fine adjustment of the hitting force corresponding to the operation amount of the variable resistor 32 becomes unstable, which causes a problem that it becomes difficult to finely aim the pachinko ball to a specific position.

To solve this problem, the variable resistor 32 is prepared based on the change characteristic corresponding to the equation, or the change characteristic is sampled in advance. Although it should be done, the cost is increased.

Therefore, an object of the present invention is to provide a launching device for a pachinko machine, in which fine adjustment of the hitting force corresponding to the manipulated variable of the variable resistor 32 is easy and inexpensive.

[0021]

SUMMARY OF THE INVENTION To achieve the above object, the present invention provides a power supply circuit in which a variable resistor is arranged between a power supply circuit and ground and which is divided by a sliding terminal of the variable resistor. The voltage is applied to the input terminal of the operational amplifier.

[0022]

[Operation] Since the present invention is configured as described above, the change characteristic of the power supply voltage value applied to the operational amplifier does not depend on the change of the resistance value of the variable resistor.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A launching device for a pachinko machine according to the present invention will be described below with reference to embodiments of the drawings. The same members as those in FIGS. 7 to 11 are designated by the same reference numerals, and detailed description thereof will be omitted.
In the launcher for a pachinko machine of the present invention, as shown in the control circuit of FIG. 1, one end of the variable resistor 43 is connected to the power supply terminal V of the power supply circuit 44, the fixed resistor R, the FET 40 and the transistor.
41, and the other end of the variable resistor 43 is connected to the power supply circuit 44.
Of the variable resistor 43, and the sliding terminal 45 of the variable resistor 43 is connected to the input terminal (inverting input terminal) of the operational amplifier 46.

As a result, the supply voltage of the power supply circuit 44 divided by the sliding terminal 45 of the variable resistor 43 is applied to the input terminal of the operational amplifier 46. Then, a pulse signal is generated from the firing pulse generation circuit 30, and the solenoid 12 is excited / energized by the electric power according to the pulse signal.
Since it is demagnetized, the punch tip 14 collides with a pachinko ball and can hit the pachinko ball to the game board 4 with a predetermined hitting force.

In the electric circuit having such a configuration, the power supply voltage value V2 applied to the input terminal of the operational amplifier 46 is expressed by the following equation. For the formula, refer to FIG. 2 which is a simplified main part of the electric circuit according to FIG.

V2 = V × Rb / (Ra + Rb) ... Since the denominator (Ra + Rb) on the right side of the equation is a constant as shown in the broken line in FIG. 2, the power supply voltage value V2 applied to the input terminal of the operational amplifier 46. Is determined by the resistance value of the variable resistor 43, but since the resistance value Rc does not depend on the operation of the variable resistor 43, the change characteristic of the power supply voltage value V2 substantially matches the change characteristic of the variable resistor 43.

The variable resistor 32 is built in the handle device 28 shown in FIGS. The handle device 28 includes a handle touch detection unit 34 having a locking protrusion (see FIG. 4) 47,
A grip base 48 and a grip cover 49 for accommodating the handle touch detection unit 34 from the front and rear are provided. The handle touch detection unit 34, the grip base 48 and the grip cover 49 are made of synthetic resin or the like, and at least the surface of the handle touch detection unit 34 is plated with a good electrical conductor. The handle touch detection unit 34 is formed on a disk, and the locking protrusion 47 is arranged on the outer peripheral portion of the handle touch detection unit 34. The locking convex portion 47 is for improving the turning operation of the handle touch detection unit 34 when gripping the handle device 28.

Grip base 48 and grip cover 49
Is formed in a dish shape in which recesses 50 and 51 are provided on the handle touch detection unit 34 side. The recesses 50 and 51 form an accommodation space such as the handle touch detection unit 34. On the rear side of the grip base 48, there is provided a columnar column portion 52 for attaching to the front frame 5. Reference numeral 53 is a rotary boss made of a conductor that is provided to project in the center of the recess 50, and the rotary boss 53 is inserted into the grip base 48. The rotating boss 53 is for engaging with the handle touch detection unit 34. The rotation boss 53 is provided with a step portion 54 for locking the handle touch detection portion 34.

Reference numeral 55 is a guide hole, and the guide hole 55 is a grip base.
The signal line formed in the recess 50 of 48 and indicated by 56 is guided to the rear side of the front frame 5. The signal line 56a connects the steering wheel touch detection circuit 33 and the steering wheel touch detection unit 34 shown in FIG. 1, and the steering wheel touch detection circuit 33 and the steering wheel touch detection unit are connected.
It is electrically connected to 34.

A rotation hole 57 is formed in the center of the handle touch detection portion 34 so as to be rotatably engaged with the rotation boss 53, and a locking piece 58 made of a conductor is attached to the rotation hole 57. ing. The locking piece 58 is fitted to the tip of the turning boss 53 through the handle touch detection section 34, and is locked to the tip of the turning boss 53 by the C ring 59, and the grip cover 49 is shown in FIG. A structure is provided in which the handle touch detection unit 34 is fitted from the left side. The C ring 59 engages with an annular groove (see FIG. 3) 60 formed at the tip of the rotating boss 53.

Reference numeral 61 is a gear, and the gear 61 is coaxially attached to the rotation boss 53 and is rotated in the same direction as the handle touch detection unit 34 is rotated. The gear 61 engages with the gear 62 of the variable resistor 43 fixed in the recess 50, and the handle touch detection unit
By rotating the operating element 63 of the variable resistor 43 according to the rotation of 34, the resistance value of the variable resistor 43 is changed. 56b
Shows the signal line of the variable resistor 43, and 64 shows the signal line of the stop switch 42.

Reference numeral 65 denotes a display concave portion, and the display concave portion 65 is for mounting cards such as trademarks and name plates. Reference numeral 66 is a transparent plate fitted into the display recess 65, and the transparent plate 66 can transparently display the cards mounted in the display recess 65. 67
Is a screw for attaching the transparent plate 66. 68 is a fixing screw, and the fixing screw 68 is for attaching the grip base 48 to the front frame 5.

The solenoid 12 is provided with a coil (not shown) inside the case body. When a plunger 13 as a moving element is inserted in a skewer shape into a through hole penetrating the center of the coil and the coil is energized, magnetic force is generated. By Plunger 13
Together with the punch tip 14 project forward (from the upper left of FIG. 9 to the phantom line).

Reference numeral 69 shown in FIG. 9 is a mounting base, and the mounting base 69 is a fixing member for mounting the solenoid 12 to the reference plate 19, and is formed in a shallow casing shape. Mounting base 69 is a base
Two guide arms 71, 72 for attaching the 70 are provided, and the mounting base 69 has an engagement hole for engaging the guide arms 71, 72.
73, 73 are provided. The solenoid 12 is first fixed to the pedestal 70, then the pedestal 70 is attached to the mounting base 69 so as to penetrate the two guide arms 71 and 72, and then the mounting base 69 is fixed to the reference plate 19. , The reference plate 19 is incorporated. The engagement holes 73, 73 positioned on the upper side and the engagement holes 73, 73 positioned on the lower side are positioned substantially parallel to the axial direction of the plunger 13 of the solenoid 12.

74, 74 cushioning material, the cushioning materials 74, 74 are attached to the guide arm 72, and the guide arm 72 and the mounting base 69
It is interposed between the solenoid (12) and absorbs the shock generated as the plunger (13) slides, and is made of an elastic material such as polyurethane.

When the solenoid 12 of the firing mechanism 11 is in the demagnetized state, the rear end of the plunger 13 is pushed out by the action of the spring 16 to stand by, and when excited, the plunger 13 is moved forward to be provided at the front end. The tip 14 of the punch is projected so that the player can hit the ball, and the hitting operation is repeated by repeating the excitation of the solenoid 12 by sending a fixed number of signals at a fixed time. On the other hand, the throw-in ball supply device 7 sends the pachinko balls one by one to the starting end 75 of the firing band 18 in synchronization with the hitting movement of the solenoid 12.

Reference numeral 76 is a sprocket, and the sprocket 76 is exposed to the inside through a window 77 cut out in the wall surface of the ball introducing trough 17, and a rotation restricting piece 78 is engaged with the sprocket 76. The rotation restricting piece 78 is for sending the rotation or rotation of the sprocket 76 for each tooth, and the connecting bar 79 for swinging the rotation restricting piece 78 and the striking motion of the plunger 13 are connected via the connecting bar 79. It is composed of an interlocking rod 80 that is transmitted to the rotation restricting piece 78.

The sprocket 76 has a ball introduction gutter in a recess between teeth.
At the same time as receiving and sending one pachinko ball passing through 17 to the pachinko ball, the weight of the pachinko ball is received, and the spindle 81 is rotated counterclockwise in FIG.
The rotation restricting piece 78 swings around the shaft 82 as a fulcrum to enable the sprocket 76 to rotate by one tooth.

The rotation restricting piece 78 has two engaging claws facing each other.
83, 84 having both locking claws 83, 84 facing the sprocket 76 and swinging around the shaft 82 as a fulcrum.
Any of the above is engaged with the teeth of the sprocket 76 to stop the rotation. As shown in FIG. 9, when the plunger 13 is in the retracted posture, the rotation restricting piece 78 has an interlocking rod.
The abutting portion 85 at the lower end of 80 is pushed out by the stopper 15 of the plunger 13, and swings around the support shaft 82 as a fulcrum to push the connecting rod 79 forward, so that the shaft 82 serves as a fulcrum in the counterclockwise direction in FIG. Then, the locking claws 83 are engaged with the teeth of the sprocket 76 accordingly. For this reason, the pachinko ball that falls in the ball introduction gutter 17 is settled in the recess of one tooth and is prevented from falling, and is restrained there.

Next, in this state, when the solenoid 12 is excited and the plunger 13 moves forward to enter a ball hitting operation, the interlocking rod 80 is released from the pressing of the plunger 13 so that the connecting rod is released.
By pulling the spring 86 acting on 79, the connecting rod is retracted and the rotation restricting piece 78 is rotated clockwise. Therefore, the locking claw 83 is disengaged from the sprocket 76, and at the same time, the other locking claw 84 engages with the next tooth, and when the pachinko ball previously stopped on this gear is released, the pachinko ball starts from the firing band 18. At the same time as flowing down to the end 75, it will restrain the next pachinko ball.

When the solenoid 12 that has hit the ball in this restrained state is demagnetized again, the plunger 13 retracts due to the action of the spring 16, so that the rotation restricting piece 78 again moves through the interlocking rod 80 and the connecting rod 79. Rotate counterclockwise, disengage the locking claw 84, engage the other locking claw 83 with the tooth of the sprocket 76, and stop this rotation while receiving the pachinko ball in the recess of the sprocket 76. become. When the solenoid 12 is excited and demagnetized once in this way, one pachinko ball is sprockets 76 as described above.
The ball is sent out from the starting band 75 and is supplied to the starting end 75 of the firing band 18 so as to be prepared for the next hitting ball, so that one pachinko ball is supplied for one hitting movement and continuous shooting is possible.

In order to use the launching device of the pachinko machine having such a configuration, first, when the handle touch detection unit 34 is gripped together with the handle device 28, the handle touch detection circuit is generated.
33 detects whether or not the player has started the game, based on the change in the electrostatic capacitance caused by the grip. When the handle touch detection circuit 33 detects the start of the game, the enable signal is input from the handle touch detection circuit 33 to the firing pulse generation circuit 30, and the firing pulse generation circuit 30 operates the solenoid 12 based on the input of the enable signal. A pulse signal for exciting is generated. Then, the emission pulse generation circuit 30, that is, the photocoupler 35 from the sending side of the control circuit.
Input to the photocoupler 35, the light emitting diode 36 of the photocoupler 35 becomes conductive and emits light at the same time.
The light is received by the phototransistor 37 of 35 and is converted into an electric signal.

For this reason, since power corresponding to the pulse signal is supplied from the power supply circuit 44 to the receiving side of the control circuit, the transistor 38 and the transistor 39 are sequentially turned on, and the solenoid 12 is powered by the power corresponding to the pulse signal. Excited and demagnetized. Therefore, the punch tip 14 collides with the pachinko ball, and the pachinko ball is struck on the game board 4 with a predetermined hitting force.

When the hitting force of the pachinko ball is changed, if the handle touch detection unit 34 is rotated, the resistance value of the variable resistor 43 fluctuates, but the change characteristic of the power supply voltage value V2 is almost variable resistor 43. Since it matches the change characteristic of, the amplification factor of the operational amplifier 31 can be controlled according to the operation amount of the variable resistor 32.

In this embodiment, the solenoid of the firing mechanism 11
Although the case where 12 is a straight type is explained, the invention is not limited to this, and the firing mechanism 11 may be configured by a rotary type solenoid 12.

[0046]

Since the present invention is configured as described above, since the amplification factor of the operational amplifier can be controlled in accordance with the manipulated variable of the variable resistor, fine adjustment of the hitting force corresponding to the manipulated variable of the variable resistor is possible. Can be controlled easily. Therefore, it is possible to delicately aim a pachinko ball to a specific place with an inexpensive improvement, and it is possible to fully enjoy a pachinko game, thereby improving the game motivation.

[Brief description of drawings]

FIG. 1 is a circuit diagram showing a main configuration of an embodiment of the present invention.

FIG. 2 is a circuit diagram showing a main configuration of the circuit diagram shown in FIG.

FIG. 3 is a sectional view of a handle device including the variable resistor shown in FIG.

FIG. 4 is a front view of the handle device shown in FIG.

5 is a cross-sectional view showing an example of attachment of the handle device shown in FIG.

6 is a plan view showing the structure of the handle device shown in FIG.

7 is a front view of a pachinko machine provided with the handle device shown in FIG.

8 is a rear view of the pachinko machine shown in FIG.

9 is a front view of the firing mechanism shown in FIG.

FIG. 10 is a circuit diagram showing a conventional example.

11 is a circuit diagram showing a main configuration of the circuit diagram shown in FIG. 10.

[Explanation of symbols] 12 Solenoid 13 Plunger 14 Tip 16 Spring 28 Handle device 29 Power supply circuit 30 Fire pulse generation circuit 43 Variable resistor 45 Sliding terminal 46 Opamp E Earth

Claims (1)

[Claims] 1. A mover having a punch attached to it for hitting a pachinko ball, a return spring for holding the mover in the original position, and the punch hitting the pachinko ball based on excitation. A solenoid for attracting the moving element to return the moving element to the original position by the spring based on demagnetization, and a firing pulse generating circuit for generating a pulse signal for intermittently exciting the solenoid. And an operational amplifier for amplifying power supplied from a power supply circuit provided in advance according to the generation of the pulse signal and applying a voltage of the amplified power to the solenoid, and a handle device for game operation. In a launcher for a pachinko machine provided with a variable resistor for adjusting the amplification factor of the operational amplifier, the variable resistor is arranged between the power supply circuit and ground. A launching device for a pachinko machine, wherein a supply voltage of the power supply circuit divided by a sliding terminal of a variable resistor is applied to an input terminal of an operational amplifier.