JP2012029825A - Difficulty adjusting device of crane game machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a difficulty adjusting device of a crane game machine capable of obtaining the state of getting an actual prize obtained in a game by setting a prize acquisition rate aimed by a manager or the like, calculating the actual prize acquisition rate by predetermined operation, and automatically adjusting difficulty by the adjustment of an adjusting mechanism such as changing an arm gripping force of a catcher so that a difference between the calculated prize acquisition rate and the aimed prize acquisition rate is eliminated.SOLUTION: A catcher 2 is moved right and left and forward and backward, and lowered to grip a prize 13 by operating an operation button 6 and an operating lever 5. A control part includes a prize acquisition number detecting means, a play count setting means and a moving average prize acquisition rate calculating means where, when the actual prize acquisition rate is lower than the aimed prize acquisition rate, the gripping force of the arm of the catcher mechanism is increased. When it is higher than the aimed prize acquisition rate, the gripping force of the arm of the catcher mechanism is decreased. Thus, the difficulty is adjusted.

Description

  The present invention calculates the actual acquisition rate with respect to a preset prize acquisition rate, and adjusts the difficulty level by changing the gripping force of the arm corresponding to the increase / decrease, etc. Relates to the device.

  As a method of adjusting the difficulty level, there is a method of adjusting the difficulty level by changing the gripping force by adjusting the spring strength of the catcher portion.

  In order to adjust the difficulty level, the store manager who handles the case has to manually change the setting each time the difficulty level is changed. In addition, even if the difficulty level is changed, the difficulty level adjustment is performed by changing the gripping force of the catcher, so it is very difficult for the player to understand what has changed.

The conventional example of the structure of the catcher part of this kind of crane game machine is shown.
FIG. 7 is a diagram showing the structure of the catcher portion of Patent Document 1. In FIG.
The motor 132 moves the moving member 134 up and down. The upper movement limit is limited by a limit switch 139, and the lower movement limit is controlled by the number of rotations of the motor.
The gripping force when gripping the prize 108 is determined by the pressing force of the spring 141 when the moving member is at the top.
The adjustment of the gripping force is performed by an administrator or the like turning the adjustment screw 144 to move the spring receiver 143 up and down and changing the pressing force of the spring.

FIG. 8 is a structure of a catcher portion of Patent Document 2 and a partially enlarged view thereof.
The worm 152 is rotated by the rotation of the motor 150, the worm wheels 142 and 143 are rotated in conjunction with the worm 152, and the protruding portions 144 and 145 are moved up and down.
When the protruding portions 144 and 145 try to move downward, the abutted arms 130 and 131 are pushed out and opened. When the protrusions 144 and 145 move upward, the attached springs 156 and 157 are pulled to increase the gripping force.
The gripping force is adjusted by an administrator or the like based on the amount of vertical movement of the protruding portion.

JP-A-7-227474 JP 2005-34249 A

The arm gripping force adjusting mechanism of the catcher portion of the conventional crane game machine is performed by manually adjusting the spring force of the arm in this way.
The purpose of the present invention is to set the target free gift acquisition rate set by the administrator, obtain the actual free gift acquisition state obtained by the game, calculate the actual free gift acquisition rate by a predetermined calculation, and calculate the free gift acquisition rate To provide a difficulty adjustment device for a crane game machine that automatically adjusts a game difficulty level by adjusting an adjustment mechanism such as changing the gripping force of an arm of a catcher unit so as to eliminate a target prize acquisition rate difference. is there.

In order to achieve the above object, claim 1 of the present invention has a prize acquisition difficulty level adjusting means for changing the difficulty level of a prize acquisition rate, and the difficulty level of a crane game machine that holds and pays out a prize by a catcher mechanism. In the adjustment device, a free gift acquisition rate calculating means for calculating an average free gift acquisition rate based on the free gift acquisition number and the number of play settings, a target free gift acquisition rate setting means for setting a target free gift acquisition rate, and the calculated average free gift acquisition When the rate is different from the target premium acquisition rate, an automatic adjustment unit is provided that adjusts the difficulty level so that the target premium acquisition rate is adjusted by the premium acquisition difficulty level adjusting means.
According to a second aspect of the present invention, in the first aspect of the invention, a catcher mechanism having a mechanism for adjusting the gripping force of the arm to change the difficulty level of the premium acquisition rate, and a premium acquisition number for detecting the premium acquisition number n ₁ Detecting means, play setting number setting means for setting the play setting number m ₁ for calculating the moving average prize acquisition rate, target moving average prize acquisition rate setting means for setting the target moving average prize acquisition rate, moving average prize acquisition rate calculating means for calculating a moving average prize acquisition rate by taking the ratio n ₁ / m ₁ of the set play set number of times as the prize number acquisition, thereafter reaching the play set number m _1, When n ₁ / m ₁ is calculated for each predetermined number of plays to obtain a moving average prize acquisition rate sequentially, and the obtained moving average prize acquisition rate is smaller than the target prize acquisition rate, the gripping force of the arm of the catcher mechanism And an automatic adjustment unit that adjusts the difficulty level by increasing.
According to a third aspect of the present invention, in the second aspect of the present invention, the predetermined number of plays is one.
According to a fourth aspect of the present invention, in the invention according to the second or third aspect, the magnitude of the gripping force of the arm adjusts the strength of a spring that closes the arm.
According to claim 5 of the present invention, in the invention according to claim 1, 2, 3 or 4, when adjusting the difficulty level in a direction that facilitates, sound is generated, illumination is performed, or the screen indicates that. It is characterized by displaying.

According to the above configuration, by setting the premium acquisition rate first, the game machine itself automatically adjusts the difficulty level by the control, so that managers who handle the case repeatedly hold the catcher repeatedly. And changing the price settings. When the difficulty level is adjusted in a direction that facilitates, the player can be informed that the setting has been reduced by directing the housing with sound or light. By making the setting sweet and limiting it, the player can be interested in the crane game.
Since the difficulty level is adjusted by adjusting the gripping force of the catcher, it is possible for the player to understand what has changed in detail.

It is a perspective view which shows the external appearance of the crane game machine to which the difficulty level adjustment apparatus by this invention is applied. It is a block diagram which shows embodiment of the circuit of the crane game machine to which the difficulty level adjustment apparatus by this invention is applied. It is a figure for demonstrating the detail of a catcher mechanism. It is a figure for demonstrating the method of calculating | requiring the moving average prize acquisition rate of the difficulty level adjustment apparatus by this invention. It is a figure which shows the specific numerical value of FIG. 4 with a line graph. It is a flowchart which shows the flow of operation | movement and a process of a crane game machine to which the difficulty level adjustment apparatus by this invention is applied. It is a figure which shows the prior art example of the mechanism which adjusts the difficulty of a crane game machine. It is a figure which shows the other conventional example of the mechanism which adjusts the difficulty of a crane game machine.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective view showing an appearance of a crane game machine to which a difficulty level adjusting device according to the present invention is applied.
Crane catchers 2 and 2 are suspended on the left and right sides of the crane game machine housing so as to be able to move left and right and back and forth, and to move and descend. Play fields 3 and 3 for placing prizes are provided in the lower part of the housing, and prize payout ports 12 and 12 are provided at the front left and right positions of the play fields 3 and 3, respectively. The prize payout ports 12 and 12 are connected to the prize takeout ports 8 and 8 provided at the lower left and right front surfaces, and are provided with payout sensors 11 and 11 for detecting the prizes to be paid out along the route.
On the operation panel surface, operation levers 5, 5, operation buttons 6, 6 for a player to operate a crane catcher and coin insertion slots 7, 7 for inserting coins are arranged.

Further, count switches 4 and 4 for counting when a prize is caught by an arm or the like and is manually paid out by an administrator or the like are provided on the left and right sides of the rear part inside the housing.
For example, when the left player moves the crane catcher 2 in the left-right direction and the front-rear direction using the operation lever 5 and the operation button 6 and stops the crane catcher 2, the crane catcher 2 descends and performs the operation of gripping the prize 13 in the play field 3. . If the prize 13 is grasped, the prize 13 falls to the prize payout port 12 and is paid out from the prize takeout port 8.
The force for gripping the prize of the crane catcher 2 is determined by the tension of the coil spring 25 (see FIG. 3) and the driving time of the motor when closing the arm. Therefore, the administrator sets a target prize acquisition rate, and is configured to control the motor driving time so that the target prize acquisition rate is automatically set. Will be adjusted.

FIG. 2 is a block diagram showing an embodiment of a circuit of a crane game machine to which the difficulty level adjusting device according to the present invention is applied.
The crane game operation of the crane game machine is controlled by the control unit 16. The control unit 16 performs display control of the display 1 and sound output control of the speaker 9 through the output unit 18. In addition, operation information of the operation lever 5 and the operation button 6 is received through the input unit 15. Furthermore, the coin sensor 14 and the payout sensor 11 receive coin detection information, prize payout information, and manual count information from the count switch 4. The setting unit 38 is used by an administrator or the like to set a premium acquisition rate (for example, 30%) for the control unit 16, and can also set the number of play settings for calculating the premium acquisition rate. It consists of switches and key buttons.

The storage device 17 stores a control program for controlling the entire crane game machine, a crane game program for executing the crane game, and data necessary for the game. The control part 16 is comprised by CPU, CPU controls the whole game by reading the control program of the memory | storage device 17, and runs a crane game by reading a crane game program.
In the standby state, the control unit 16 sends “CHANCE” to the display 1 through the output unit 18.
TIME! ! ”Is displayed and coin insertion is monitored.
When a coin is inserted and the operation lever 5 and the operation button 6 are operated, the information is obtained, and the catcher position movement / vertical movement mechanism 20 is driven. Further, driving information is sent to the catcher driving unit 19 for driving the catcher. The catcher drive unit 19 controls the arm opening / closing mechanism 2a of the catcher 2 according to the drive information. At the same time, the gripping force adjustment by the gripping force adjustment unit 2a-1 is performed.

This block diagram shows a method of moving the catcher 2 using the operation lever 5 and the operation button 6 when moving the catcher 2. However, the operation lever 5 is omitted and the catcher 2 is moved using a plurality of operation buttons 6. It can also be a structure.
Since the count switch 4 does not pass through the payout sensor 11 when the prize 13 is hand-paid (special acquisition example such as when the prize is caught on the arm), the count switch 4 is used to pay the prize to the control unit. It is to recognize that it has been issued. That is, when the administrator or the like presses the count switch 4, the control unit 16 (see FIG. 2) adds 1 to the added number of acquired prizes.

FIG. 3 is a diagram for explaining details of the catcher mechanism.
The catcher 2 is suspended by a telescopic part 30 that expands and contracts, and a sensor frame 31 is attached to the lower end of the telescopic part 30. The sensor frame 31 has a rectangular shape, and houses the motor 21 and the magnet sensors 24a and 24b. A magnet plate 32 with a magnet 23 detected by the magnet sensors 24a and 24b is accommodated in the sensor frame 31 so as to be movable in the vertical direction. The magnet plate 32 is fixed to the cylinder 22 and moves up and down as the cylinder 22 moves up and down.

The lower part of the sensor frame 31 is fixed to the upper part of the catcher frame 34. The catcher frame 34 also has a rectangular shape. The arm opening / closing mechanism 2a shown in FIG. 2 (reference numerals 21, 22, 22a, 24a, 24b, 25, 26, 26a, 26b, 27, 28, 28a, 29, FIG. 3) 31, 32, 33, 34, 35, 36 and 37) and gripping force adjustment unit 2 a-1 (also including reference numerals 22, 22 a, 25, 27, 28, 28 a, 29, 36 and 37 in FIG. 3). Part).
A gear head 27 is fixed to the output shaft of the motor 21, and a screw mounting shaft 29 is attached to the gear output shaft of the gear head 27. A screw 28 is fixed to the screw mounting shaft 29 by a pin 29a. The screw 28 is rotated by the rotational output of the motor 21 decelerated.
The outer peripheral teeth 28 a of the screw 28 are meshed with the inner peripheral teeth 22 a of the cylinder 22.

The cylinder 22 has a cylindrical shape, and has three screw holes for fixing the three hook plates 37 to the upper end surface. One end of each coil spring 25 is locked to the tip of each hook plate 37.
The arm 26 is rotatably attached to an arm shaft 35 fixed to the catcher frame 34. A spring locking hole 36 is provided near the rotating portion of the arm shaft 35 of the arm 26, and a pressing portion 26a is provided on the outer portion thereof. The other end of the coil spring 25 is locked in the spring locking hole 36. Further, a rotation limiting portion 26 b is provided on the lower side of the arm shaft 35 near the rotating portion.

  The pressing portion 26 a is pressed by the lower end of the cylinder 22, and the arm 26 is moved in the opening direction by the lowering of the cylinder 22. The rotation restricting portion 26b moves in the direction in which the arm closes when the cylinder 22 is raised. However, when the arm closes to a predetermined position, the rotation restricting portion 26b hits the side surface of the catcher frame 34 and restricts the rotation of the arm. This determines the rotation stop position of the arm 26 for preventing the arms from interfering with each other and generating a gripping force.

In the present invention, the achievement rate of the prize is measured for each game, and the difficulty level is adjusted by adjusting the spring strength of the catcher arm so that the target prize acquisition rate is obtained based on this data. Do.
The target prize acquisition rate can be set by the administrator by operating the setting unit 38. Also, the numerical value can be set for the number of play settings.
The prize acquisition rate can be obtained by the following calculation.
Prize acquisition rate (%) = play set number m ₁ within the prize acquisition number n ₁ / play set in number m ₁ × 100 · · · (1)

If the specific value play setting number is set to 100 and the number n _{1 of} premiums acquired is 30, the equation (1) becomes 30%. After calculating the free gift acquisition rate up to 100 times, the free gift acquisition rate is sequentially calculated every time the play is increased, and thus the multiple free gift acquisition rates calculated in this way are also moving average free gift acquisition rates.
Note that the number of play settings corresponds to the number of times that the minimum fee for playing has been entered (the number of times the minimum fee has been entered).

FIG. 4 is a diagram for explaining a method for obtaining the moving average prize acquisition rate of the difficulty level adjusting device according to the present invention. FIG. 5 is a line graph showing the specific numerical values of FIG.
These are calculated based on the equation (1), and specific numerical values and graphs of the moving average prize acquisition rate are obtained.
In FIG. 4, the number of play settings is set to 100, the number of prizes acquired is obtained by detection of the sensor, the 100th moving average prize acquisition rate is calculated, and the moving average prize acquisition rate is calculated for each subsequent play. It is a specific numerical value.
When the number of play settings is 100, the moving prize acquisition rate is 30.00%, and the moving prize acquisition rate is 30.00% from 101 to 105 times. From 106 to 112 times, the moving prize acquisition rate is 29.00%.

Here, for example, when the administrator sets the target prize acquisition rate to 30% by the setting unit 38, the gripping force of the catcher is not adjusted by the gripping force adjusting unit 2a-1, but 29. When it reaches 00%, the gripping force of the catcher is adjusted to 30%. In order to increase the gripping force of the catcher, the number of rotations of the motor on the cylinder ascending side is increased, and in order to reduce the gripping force, the number of rotations of the motor on the cylinder ascending side is decreased.
In the example of FIG. 5, the moving average prize acquisition rate is 29% from around 106 to 112, 28% from 113 to 120, 29% from 144 to 162, and 29% from 194 to 202 Therefore, the control unit 16 controls the difficulty level to be easy. That is, adjustment is made so that the gripping force of the catcher is increased by increasing the number of rotations of the motor on the cylinder ascending side.

FIG. 6 is a flowchart showing the operation and processing flow of the crane game machine to which the difficulty level adjusting device according to the present invention is applied.
The control unit 16 obtains a signal from the coin sensor 14 that detects a coin and monitors whether or not the user has inserted a predetermined coin (step (hereinafter referred to as “S”) 001). When a coin is inserted, the control unit 16 starts playing. When the player operates the operation lever 5, the control unit 16 controls the movement of the catcher 2 by controlling the movement of the catcher position and the vertical movement mechanism 20 according to the operation. When the operation button 6 for the lowering operation is pressed, the catcher position moving / vertical moving mechanism 20 is driven to start the lowering, the motor 21 is driven by the catcher driving unit 19, and the arm is opened and closed by the arm opening / closing mechanism 2a. The gripping force of the arm 26 is adjusted by the gripping force adjusting unit 2a-1. That is, the rotational speed of the motor is instructed from the control unit 16 so as to achieve the premium acquisition rate set, and the arm gripping force is changed by closing the arm by the rotational speed. If the rotation speed of the motor 21 is increased, the coil spring 25 is extended by an increase in the rotation speed, so that the gripping force of the arm is increased.
In this way, the process for the catcher is executed (S002).

Thus, in the processing operation, the control unit 16 counts the number of games and detects the number of prizes acquired (number of payouts) by the payout sensor 11.
During the above process, the control unit 16 determines whether or not the number of games has reached a predetermined number of play settings (S003). For example, it is monitored whether or not the number of play settings (100 times, 101 times,...) In FIG. 4 has been reached. If the number of play settings is reached, the moving average prize acquisition rate is calculated from the number of game settings and the number of prizes acquired during the number of play settings (S004).

Then, the control unit 16 determines whether or not the moving average premium acquisition rate calculated in this way is smaller than the premium acquisition rate set in advance by the administrator or the like (S006).
If it is smaller than the prize acquisition rate set by the administrator, the driving time of the cylinder ascending side motor when the arm descends and performs the opening / closing operation is made longer than the current driving time to increase the gripping force of the arm (S007). ). For example, if the current motor driving time is 2.55 seconds, only the time corresponding to the difference in the resulting acquisition rates is increased to 2.70 seconds or the like.
On the other hand, if it is larger than the prize acquisition rate set by the administrator, the arm driving force when the arm descends and opens / closes is made smaller than the current driving time to reduce the gripping force of the arm (S008). For example, if the current motor driving time is 2.55 seconds, only the time corresponding to the difference in the resulting acquisition rates is reduced to 2.40 seconds or the like.
In the case where the difficulty level of the prize acquisition is adjusted in a direction that facilitates, the control unit 16 makes a sound to that effect from the speaker 9 to notify the player. In addition, the player is informed of the fact by the display 1 and the light emission contents such as illumination, for example, LED.

After performing such processing, the control unit 16 determines whether or not the game is over (S009). If the player has not finished the game as many times as the number of play settings corresponding to the inserted coins, or if the player is operating the operation lever or operation button, the process returns to S003 and the acquisition rate is calculated again. Return to the sequence.
When the game ends, this processing sequence also ends.

The above embodiment calculates the moving average prize acquisition rate when the number of play settings is reached with respect to a preset prize acquisition rate, and changes the gripping force of the arm in response to an increase or decrease with respect to the set prize acquisition rate. Although the example in which the difficulty level is adjusted is shown, the difficulty level adjustment may be performed by changing the number of plays for a predetermined fee corresponding to the increase or decrease to the prize acquisition rate set as the difficulty level adjustment method. Is possible. If the number of plays for a predetermined fee is increased, the difficulty becomes easier, and if the number of plays is decreased, the difficulty increases.
In addition, an example has been shown in which the player is informed of the difficulty by the generation of sound or the display 1 or lighting, for example, the light emission content of an LED or the like. A message can be displayed to allow the player to recognize.

Further, in the example of the processing of the flowchart of FIG. 6, an example is shown in which the difficulty level becomes easy even when the difficulty level becomes easy, but the moving average prize acquisition rate has decreased as shown in FIG. It is also possible to adjust the difficulty level only in such a case, and not to adjust when the moving average prize acquisition rate is higher than the set prize acquisition rate.
In addition, although the example in which the prize acquisition rate is sequentially calculated when the number of play settings is reached and every time the predetermined number of plays is increased by 1 is shown, the predetermined number of plays is sequentially set as 2, 3, and so on. A premium acquisition rate can also be calculated.

  This is a crane game machine that automatically adjusts the degree of difficulty such as calculating the actual prize acquisition rate with respect to a preset prize acquisition rate and changing the gripping force of the arm in accordance with the increase / decrease.

DESCRIPTION OF SYMBOLS 1 Display 2 Catcher 3 Play field 4 Count switch 5 Operation lever 6 Operation button 7 Coin insertion slot 8 Premium take-out slot 9 Speaker 10 Coin return slot 11 Discharge sensor 12 Free prize discharge slot 13 Free prize 14 Coin sensor 15 Input section 16 Control section 17 Memory Device 18 Output unit 19 Catcher drive unit

Claims (5)

In the difficulty adjustment device for a crane game machine having a prize acquisition difficulty level adjustment means for changing the difficulty level of the prize acquisition rate, and holding and paying out a prize by a catcher mechanism,
A prize acquisition rate calculating means for calculating an average prize acquisition rate based on the number of prizes acquired and the number of play settings;
Target premium acquisition rate setting means for setting a target premium acquisition rate;
When the calculated average prize acquisition rate is different from the target prize acquisition rate, an automatic adjustment unit that adjusts the difficulty level so as to achieve the target prize acquisition rate by the prize acquisition difficulty level adjustment means, A difficulty adjustment device for a crane game machine. A catcher mechanism having a mechanism for adjusting the gripping force of the arm in order to change the difficulty of the prize acquisition rate;
A prize acquisition number detecting means for detecting a prize acquisition number n ₁ ;
A play setting number setting means for setting a play setting number m ₁ for calculating the moving average prize acquisition rate;
Target moving average prize acquisition rate setting means for setting a target moving average prize acquisition rate;
A moving average prize acquisition rate calculating means for calculating a moving average prize acquisition rate by taking a ratio n ₁ / m ₁ between the number of prize acquisitions and the set number of play settings;
After reaching the play setting number m ₁ , n ₁ / m ₁ is calculated every predetermined number of times to obtain a moving average premium acquisition rate sequentially, and the obtained moving average premium acquisition rate is smaller than the target premium acquisition rate An automatic adjustment unit that adjusts the difficulty level by increasing the gripping force of the arm of the catcher mechanism,
The difficulty adjustment device for a crane game machine according to claim 1, comprising:   3. The difficulty adjustment device for a crane game machine according to claim 2, wherein the predetermined number of play times is one.   4. The difficulty adjustment device for a crane game machine according to claim 2, wherein the magnitude of the gripping force of the arm adjusts the strength of a spring that closes the arm.   5. The crane game machine according to claim 1, wherein when the difficulty level is adjusted in a direction that facilitates, a sound is generated, illumination is performed, or the fact is displayed on a screen. Difficulty adjustment device.

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