JPH0671495B2 - Key unit for ball game machine and magnetic signal writing device for key - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention is used for an unlocking key unit for a ball game machine such as a pachinko game machine, a coin game machine, a smart ball game machine, and the key unit thereof. The present invention relates to a magnetic signal writing device for a key. Specifically, an unlocking key unit for a ball game machine having an outer frame, a front frame openably and closably provided on the outer frame, and a glass door frame openably and closably provided on the front frame, and The present invention relates to a magnetic signal writing device for a key used in the key unit.

[Prior Art] As an example of a ball game machine, for example, in a pachinko game machine, when a jam of balls occurs during business, when adjusting a nail after business is over or when performing maintenance inspection, a glass door frame or a front frame is used. It has been opened and is performing prescribed work. By the way, such a glass door frame and a front frame are closed and locked so that pachinko balls do not leak out during a game or a player cannot perform fraud and the like. Conventionally, a cylinder lock has been used as a lock used for a glass door frame or a front frame of a pachinko gaming machine.

Also, other ball game machines, for example, coin game machines, also used cylinder locks, and smart ball game machines usually used cylinder locks or a little simpler locks.

However, the conventional cylinder lock has a drawback that a key for opening the cylinder lock can be relatively easily imitated. And the clerical pachinko hall clerk,
There has been a problem in that the keys are sometimes imitated and the imitated keys may be expensively sold to a specific customer or may be diverted to a friend.

And if such a fraud is found in a certain pachinko hall, it is usually necessary to replace the cylinder locks attached to the glass door frame and front frame of all pachinko gaming machines in that pachinko hall. Had to pay a lot of money.

In order to solve such a drawback, the applicant of the present application previously applied for Japanese Patent Application No. 55-91120 and Japanese Patent Application No. 55-133496.
The former is a device that outputs an unlocking or locking signal by an electronic key unit, and the latter is a device that outputs an unlocking or locking signal by a magnetic card. And both
It has the advantages that the lock management of the ball game machine can be centralized and the illegal opening of the frame can be prevented.

[Problems to be Solved by the Invention] However, in the former application of the applicant of the present application, in the former case, the structure of the electronic key unit is complicated, the mechanism of the code transmitting part is complicated, and it becomes expensive. In the latter case, the reading structure of the magnetic card becomes complicated. Therefore, both of them are suitable to be provided in a centralized control room of a pachinko hall or the like, for example, but only one or several pachinko gaming machines are complicated and too expensive as a device to be provided individually. There was a drawback. Further, although it is in the technical field of vehicles, as a technology for unlocking the lid for a vehicle, conventionally, a predetermined pulse signal is transmitted from a transmitter capable of transmitting a magnetic signal, and the pulse signal is received for a predetermined time and pulsed. Some have counted the number and allowed unlocking only when the number of counted pulses within a predetermined time reaches a predetermined count value. If the unlocking technology based on the pulse number counting method is directly applied to the technical field of the ball game machine, the following problems occur. That is, in a game machine in which a ball game machine is installed, noise due to static electricity is likely to occur, but in the case of the pulse counting method, a pulse signal must be continuously received for a predetermined time, and the predetermined The longer the time, the higher the possibility of noise intrusion, and the higher the probability of malfunction due to noise, the more disadvantageous. Moreover,
The unlocking key, that is, the transmitter side must have the function of transmitting an accurate number of pulses, and
Also on the receiving side, it is necessary to provide a judgment function for counting received pulses and judging whether or not the count value is a predetermined value, which makes the structure complicated and expensive. As a device for individually providing each ball game machine, there is a drawback that the device is complicated and expensive.

The present invention has been conceived in view of such circumstances, and an object of the present first invention is to provide a key unit for a ball game machine which is simple in structure and inexpensive, while preventing malfunction due to noise as much as possible. Is.

The second object of the present invention is to rewrite the key code so that if the key used for the key unit is stolen, lost or imitated, the problematic key becomes unusable. Is to provide the device.

[Means for Solving the Problems] The first invention has an outer frame, a front frame openably and closably provided on the outer frame, and a glass door frame openably and closably provided on the front frame. A key unit of a ball game machine, having a plurality of magnetic output generating sections capable of generating magnetic outputs, and the magnetic output states of the plurality of magnetic output generating sections are arranged in a combination according to predetermined code information. Is configured to have a key for selectively unlocking the front frame or the glass door frame, and a plurality of magnetic output detection units corresponding to the plurality of magnetic output generation units, the plurality of A reading unit that reads the predetermined code information according to a combination pattern of detection output states of the magnetic output detection unit, and an output of the reading unit when it is determined that unlocking is allowable based on the code read by the reading unit. Based on the front frame or the An unlocking means for unlocking the locking of the lath door frame is included.

A second aspect of the present invention is a magnetic signal writing device for a key, which is provided with a plurality of magnetic output generating members capable of generating a magnetic output, and is capable of outputting a predetermined encoded magnetic signal. Code information input operation means capable of inputting and operating information relating to a code of a magnetic signal to be output, and a magnetic output state of the magnetic output generation member acting on the magnetic output generation member, and the magnetic output state of the magnetic output generation member is input from the code information input operation means. And a code writing unit for setting a combination pattern according to the code.

[Operation] According to the first aspect of the present invention, the key for selectively unlocking the front frame or the glass door frame is provided with a plurality of magnetic output generation units capable of generating a magnetic output. The magnetic output state of the magnetic output generator is configured to be a combination array according to predetermined code information. Further, a plurality of magnetic output detection units corresponding to the plurality of magnetic output generation units are provided in the reading means, and the predetermined code information is read by a combination pattern of detection output states of the plurality of magnetic output detection units. . Furthermore, by the function of the unlocking means,
When it is determined that the unlocking is permitted based on the code read by the reading unit, the locking of the front frame or the glass door frame is unlocked based on the output of the reading unit.

According to the second aspect of the present invention, by the code information input operation means,
Information about the code of the magnetic signal output from the key can be input and operated. Also, the combination pattern according to the code inputted from the code information operating means by acting on the plurality of magnetic output generating members arranged on the key by the operation of the code writing means The code is written so that

[Embodiment] FIG. 1 is a front view of an entire pachinko gaming machine equipped with an embodiment of the present invention. The pachinko game machine 10 is placed on the island stand 12, and the curtain board is attached to the upper part thereof.
The curtain plate 14 is provided with a key output detector 16 which constitutes an embodiment of the present invention, and a calling device for a player to call a pachinko hall attendant when a ball jam occurs.
18 are provided.

As is well known, the pachinko gaming machine 10 includes a front frame 20 that is openably and closably mounted on the front side of an outer frame (not shown), a glass door frame 22 and a front plate 24 that are openably and closably attached to the front frame 20. In addition, an operation handle 26 for hitting a pachinko ball, a game board 28 having a winning area and the like are provided.

FIG. 2 is a partially enlarged view of the front view shown in FIG. Further, FIG. 3 is a partial perspective view thereof. Referring to FIGS. 2 and 3, the key output detector 16 attached to the front surface of the curtain plate 14 has a key insertion groove 30 formed therein. In addition, the indicator lamps 32, 34 are
And an alarm buzzer 36 is provided. The indicator lamp is
The key 42 inserted in the key insertion groove 30 (details will be described later)
Is a non-conforming key 32 for OK indicating that the key is a correct key and an NG lamp 34 indicating that the key is a key. The NG lamp 34 and the alarm buzzer 36 are interlocked with each other, for example, and when the key is not suitable, the NG lamp 34 is turned on and the alarm lamp 36 sounds.

In the calling device 18, the number of the pachinko gaming machine 10 (for example, "515") is displayed in the center, and the calling switch 38 is provided below the number. When the call switch 38 is turned on by the player, the call lamps 40a and 40b arranged on both sides of the call switch blink (or light up).

FIG. 4 is a perspective view showing an example of a key used in this embodiment. FIG. 5 is a front view for explaining the internal structure of the key shown in FIG. FIG. 6 shows line VI in FIG.
FIG. 6 is a sectional view taken along line VI.

Referring to FIGS. 4 to 6, a key 42 is a long plate-shaped key body 44, and a plurality of magnetic output generators embedded in the key body 44 at predetermined positions at predetermined intervals. And a magnetic output generating member 46, which is an example of a part. The key body 44 is
It is made of a non-magnetic material such as plastics.
Then, a guide display 48 is drawn on the surface thereof. As will be described later, this display brings the key body 44 to the left end of the key insertion groove 30 (see FIG. 3) when the glass door frame is opened, and when the front frame is opened, the key body 44 is pressed. 9 is a display showing that the insertion groove 30 is moved to the right end. Further, the notches 52 formed at the upper and lower sides of the left side and the right side of the key body 44 serve as positioning guides when the key 42 is inserted into the key insertion groove 30. In addition, a chain attachment hole 54 is formed in the center of the right side of the key body 44 so that the key 42 can be easily carried during handling and the chain can be attached so as not to lose the key 42. Convex part 56
Is provided. The right side of the key body 44 itself may be used as the guide portion without forming the cutout portion 52.

In the key body 44, magnetic output generating members 46 are embedded in the upper and lower two rows at predetermined intervals in the length direction. The magnetic output generation member 46 is made of, for example, a cylindrical alnico magnet or ferrite magnet. The magnetic output generation member 46 is
All positions shown in Figure 5 (all positions drawn in a circle)
Depending on the position of the key 42, a member that does not output magnetism may be buried depending on the position of the key 42, and the magnetic output generating member 46 may be missing. The magnetic output generation member 46 is magnetized so that the N pole or the S pole output from the circular end surface of the magnetic output generation member 46 is magnetized in a predetermined direction or demagnetized so that there is no magnetic output depending on the location. Has been done. Therefore, a magnetic code signal unique to the key 42 is output depending on the direction of the magnetic output (the direction of the N pole or the direction of the S pole) and the presence or absence of the magnetic output.

It should be noted that in the drawing, the keys 42 in which the maximum of eight magnetic output generating members 46 can be embedded in the upper row and one magnetic output generating member 46 in the lower row are shown
It goes without saying that the number and the combination of the columns can be arbitrarily selected by the combination with the key output detector 16 described later.

7 and 8 are front views showing a state in which the key 42 is attached to the key output detector 16, and in particular, FIG. 7 shows a case where the front frame 20 (see FIG. 1) is opened, FIG. 8 shows a case where the glass door frame 22 is opened. Also, FIG.
It is sectional drawing which follows the line IX-IX of a figure.

Referring to FIGS. 7 to 9, within the bottom surface of the key insertion groove 30 formed in the key output detector 16 (on the front side of the key insertion groove 30 in FIG. 7), magnetic output is provided in two rows. A detector 58 (58a to 58i, 58X, 58Y), which is an example of a detection unit, is embedded. The detector 58 is for detecting a magnetic output, and is composed of, for example, a Hall IC or a magnetoresistive element. The embedded position of the detector 58 corresponds to the position of the magnetic output generation member 46 of the key 42 described above. That is, the detector 58 is provided at a position corresponding to the magnetic output generation member 46 so that the polarity and presence / absence of the magnetic output output by the magnetic output generation member 46 of the key 42 can be detected.

When the front frame 20 is opened by the key 42, the key 42 is inserted into the key insertion groove 30 as shown in FIG. That is, the notches 52 provided on the upper and lower sides of the right side of the key 42 are the key insertion grooves 30.
Is inserted so as to abut the guide protrusion 60. In this state, each magnetic output generating member 46 of the key 42 and the detector 58 of the key output detector 16 correspond to the state shown in FIG. Therefore, the detector 58X detects the magnetic signal output from the magnetic output generation member 46X. In this embodiment, the detector 58X is a detector for opening the front frame, and the opening of the front frame 20 is selected based on the signal from the detector 58X. The signals output from the eight magnetic output generating members 46a to 46h embedded in the upper row of the key 42 are detected by the detectors 58a to 58a.
It is detected by the detector 58i (substantially the detectors 58a to 58h). Then, it is determined whether or not the key 42 is a correct key depending on whether or not this detection output is a predetermined coded signal.

Also, when opening the glass door frame 22 with the key 42,
The key 42 is inserted into the key insertion groove 30 as shown in FIG. That is, the key 42 is inserted so that the left side 50 of the key 42 contacts the left side of the key insertion groove 30. In this state, the 8th
As shown in the figure, the magnetic output generating member 46 and the detector 58 correspond to each other. Therefore, the output signal of the magnetic output generation member 46X is detected by the detector 58Y. In this example,
Detector 58Y is a detector for opening the glass door frame,
The opening of the glass door frame 22 (see FIG. 1) is selected based on the output of the detector 58Y. The magnetic output generation member 46
The coded signals from a to 46h are, in this case, detectors 58a to 58i.
(Substantially detectors 58b-58i).

FIG. 10 is a block diagram showing the configuration of the control circuit of the present invention. Referring to FIG. 10, the detection output of the detector 58 is CPU6.
Given to 2. RA with rewritable data for CPU62
A ROM 66 storing an operation program for the M64 and the CPU 62 to execute the operations according to the flowcharts shown in FIGS. 12 and 13 described later is connected.

Further, signals from the frame open / close detection switches 67 and 71 are given to the CPU 62. The frame open / close detection switches 67, 71 are switches provided in association with the front frame 20 and the glass door frame 22, respectively. Specifically, it is provided as shown in FIGS. 14 to 17, for example.

Referring to FIG. 14 (overall view) and FIG. 15 (enlarged view of portions A and B in FIG. 14), for example, a magnet 68 is fixed to a part of the lower side of the glass door frame 22. And
When the glass door frame 22 is closed, a magnetic signal detecting element 70 such as a hall element is provided on the game board 28 side corresponding to the magnet 68. Therefore, it is possible to detect whether the glass door frame 22 is in the closed state or the open state by the change in the output of the magnetic signal detection element 70.
The glass door frame opening / closing detection switch 67 including the magnet 68 and the magnetic signal detection element 70 can be replaced by another switch such as a switch that detects a change in optical signal or a switch that detects continuation of current. .

16 and 17 are views for explaining a mounting structure of the front frame opening / closing detection switch 71 provided in association with the front frame 20. FIG. 16 is an overall view, and FIG. 17 is an enlarged view of portions A and B of FIG. Referring to FIGS. 16 and 17, a magnet 72 is provided on the rear surface of the upper right corner (upper right corner when viewed from the front side) of the front frame 20, and when the front frame 20 is closed, the magnet 72 is provided. The magnetic signal detection element 74 is attached to the outer frame 76 so that the magnetic signal detection element 74 is located at a portion corresponding to. Therefore, like the opening / closing detection switch 67 of the glass door frame 22, the magnet 72 and the magnetic signal detection element 74 operate as the opening / closing detection switch 71. In this case as well, it goes without saying that this switch may be replaced with an optical switch or an electrical switch.

Now, returning to FIG. 10, a writing device 76 is connected to the CPU 62. The writing device 76 is composed of, for example, a keyboard or the like, and is for rewriting a key code or the like, which will be described later, stored in the RAM 64. The output of CPU62 is
It is provided to the unlocking motor 80 via a digital / analog (D / A) converter 78. Therefore,
The unlocking of the front frame 20 or the glass door frame 22 is controlled by the output of the CPU 62. Further, the output of the CPU 62 is given to the display lamps 32 and 34 and the alarm buzzer 36 via the interface 82. Further, the CPU 62 is connected to a management device to be described later, and data can be transmitted to and from the management device.

FIG. 11 is a memory map showing the contents of the data stored in the RAM 64 described above. When data is provided from the detector 58 to the RAM 64, the CPU 6 determines whether the data is normal.
The key code data used as the basis for the determination by 2 is stored. The key code data is set and stored for each key number as shown in FIG. 11, and the unlock code when the detector 58X detects a signal and the unlock code when the detector 58Y detects a signal. Divided into the code for each,
Remembered

FIG. 12 is a flowchart showing the frame opening processing operation by the key 42. Next, FIG. 7, FIG. 8, FIG. 10, and FIG.
The frame opening processing operation will be described with reference to FIGS. The CPU 62 determines whether or not the key 42 is set in the key output detector 16 (step S1), and when the key 42 is set, reads the key output input from the detector 58 (step S2). Then, the CPU 62 determines which of the outputs from the detector 58X or 58Y is included in the key output (step S3). Now, as shown in FIG.
When the key 42 is attached to open the front frame 20, the detector 58X detects the output of the magnetic output generation member 46X. Therefore, the CPU 62 next detects the detector 5 in step S4.
The signal of the key 42 read by 8a to 58i (the signal of the magnetic output generating members 46a to 46h) is compared with the unlocking code stored in the RAM 64. For example, when trying to open a frame of a pachinko gaming machine, the CPU 62 reads out and inputs an unlocking code of X from an area (for example, key No. 1) having a predetermined key number for the pachinko gaming machine. Compare with the code given.

In this embodiment, the RAM 64 stores the key codes for a plurality of keys, but the key code for one key may be stored. When the key codes for a plurality of keys are stored as in this embodiment, there are the following advantages. In a pachinko gaming machine with the same control circuit, if you want to open a frame with a key with a different key code for each pachinko gaming machine, achieve the above object by making the RAM area to be read different for each pachinko gaming machine in advance. it can. Further, when the key 42 is used, the operator may input a signal representing the key number so that the RAM area corresponding to the key number is read. In this case, it is possible to provide an opening device with higher safety. Further, as will be described later, it is possible to develop a device capable of controlling the opening and closing of the frame of the pachinko gaming machine in units of island stands or pachinko halls.

When the key 42 is set as shown in FIG. 8, the output of the magnetic output generation member 46X is detected by the detector 58Y in step S3, and the operation of the CPU 62 is stepped.
Go to S7. Then, as in step S4, the predetermined code stored in the RAM 64 is compared with the code of the key 42 detected by the detectors 58a to 58i.

In steps S3, S4 and S7, the CPU 62 causes the detector 58X, 5
When it is judged that there is no output of 8Y, or RAM6
When it is determined that the code stored in 4 and the read code do not match, the CPU 62 notifies the management device (not shown) of the detection abnormality (step S9), and the NG display lamp
34 is turned on, the alarm buzzer 36 is turned on, and the state is maintained.

In step S4 or step S7, the CPU 62 sets the key 42
When the code is determined to be a correct code, the front frame 20 is unlocked (step S5) or the glass door frame 22 is unlocked (step S8). Then, after waiting for the removal (removal) of the key 42 (step S6), the processing operation is ended.

In addition to the processing shown in FIG. 12 described above, the CPU 62 performs an unauthorized opening detection processing of the front frame 20 or the glass door frame 22 as shown in FIG. 13 by an interrupt processing at a predetermined time interval, for example, 4 mS interval. Do.

Referring to FIG. 13, in this process, the CPU 62 determines the signal state from the front frame opening / closing switch 71 or the glass door frame opening / closing switch 67, and determines whether the front frame 20 or the glass door frame 22 is opened. do. For example, when both the front frame 20 and the glass door frame 22 are closed, the magnetic signal detection element
When the outputs of the 74 and the magnetic signal detecting element 70 are low level and either the front frame 20 or the glass door frame 22 is opened, the signal level of either the magnetic signal detecting element 74 or 70 becomes the high level. Thereby, the CPU 62 detects the frame opening. If all the frames are in the closed state, this interrupt processing ends.

When it is detected in step S11 that one of the frames is opened, the CPU 62 next determines whether the frame is opened by the key 42 (step S12). That is, the CPU 62 determines whether or not the frame has been opened by the proper operation of the key 42. This determination is made based on whether or not there is an open detection signal from the detector 58. If the frame is properly opened, the interrupt process ends.

If the frame has not been opened by the key 42, it means that the frame 20 or 22 has been illegally opened at that time, so a signal of illegal opening is sent to the management device (step S1).
3), the NG lamp 34 and the alarm buzzer 36 are turned on (step S14). The alarm lamp and the buzzer for notifying at this time are not provided in the key output detector 16 and may be other notifying lamps or the like.

FIG. 18 is a diagram showing an example in which a control device for opening and closing a frame (this control device includes the control circuit described in FIG. 10) is provided for each island stand.

Referring to FIG. 18, a plurality of pachinko gaming machines 10 are mounted on the island stand 12, and a control device 79 connected to each key detector 16 of the plurality of pachinko gaming machines 10 is provided. ing.
The controller 79 is provided with a write switch 81 and a key insertion groove 83. By inserting the key 42 in which a predetermined code is written into the key insertion groove 83 and pressing the write switch 81, the code of the key 42 is written in the RMA 64 in the control device 79. Therefore, as compared with a data writing device such as a ten-key pad, the key code can be written quickly and accurately.

It should be noted that with one key 42, it is possible to open all the frames of the pachinko game machine mounted on the island stand 12,
The key 42 can be changed for each pachinko machine.
In the latter case, when writing the key code to the controller 79,
The key identification number and the like may be written together (this number may be input by, for example, a ten-key pad or the like not shown). The key 42 has a plurality of magnetic output generators capable of generating a magnetic output, and the magnetic output states of the plurality of magnetic output generators are arranged in a combination array according to predetermined code information. A key for selectively unlocking the front frame or the glass door frame is configured. The key output detector 16 has a plurality of magnetic output detection sections corresponding to the plurality of magnetic output generation sections, and reads the predetermined code information according to a combination pattern of detection output states of the plurality of magnetic output generation sections. Means are configured. When it is determined in steps S1 to S8 that the unlocking is permitted based on the code read by the reading means, the locking of the front frame or the glass door frame is unlocked based on the output of the reading means. An unlocking means is configured.

FIG. 19 is a diagram in the case where the opening and closing of the pachinko gaming machine frame of the entire pachinko hall is managed and controlled by one controller 79. In this case, the control device 79 may be provided, for example, in the central control room.

Next, an embodiment of the second invention of this application will be described.

FIG. 20 is a plan view (top view) showing an embodiment of the second invention of this application. FIG. 21 is a sectional plan view drawn so that the internal structure of the embodiment shown in FIG. 20 can be seen. Further, FIG. 22 is a side sectional view taken along the line XXII-XXII in FIG.

With reference to FIGS. 20 to 22, the magnetic signal writing device 90 of this embodiment includes a flat casing 92. On the surface of the case 92, a power switch 94 and a changeover switch 96 (96a to 96h)
Is provided. A key insertion guide 98 is formed in the housing 92 so that the key 42 can be inserted from the side surface of the housing 92 toward the center thereof. Then, as shown in FIGS. 21 and 22, the magnetic output generating members 46a to 46a when the key 42 is fully inserted along the key insertion guide 98 to the back.
Ferrite 100 above and below the position corresponding to 6h, respectively.
(100a to 100h) and 102 (102a to 102h) are provided. The ferrite 100 is connected to the conductive substrate 104 (104a to 10a).
4h) and is connected to one end of the solenoid 106 (106a to 106h). Further, the ferrite 102 is the conduction plate 1
It is connected to the other end of the solenoid 106 via 08 (108a to 108h). Further, although not shown, each solenoid 10
A power source (DC power source) whose conduction direction is switched depending on the switching state of the changeover switches 96a to 96h is supplied to the 6a to 106h.

The magnetic signal writing device 90 is configured as described above, and each of the ferrite 100, the conductive substrate 104, the solenoid 106, the conductive plate 108, and the ferrite 102 is an example of the activation means described in the claims. A magnetic path is formed. The direction of the current supplied to the solenoid 106 is switched by the changeover switch 96 so that the direction of the magnetic flux flowing between the ferrites 100 and 102 is reversed. In addition, since a strong magnetic flux flows between ferrites 100 and 102, ferrites 100 and 1
The magnetic output generating member 46 of the key 42 placed between the key 02 and the key 42 can be magnetized in one direction, demagnetized, or magnetized in the opposite direction in a short time.

Therefore, the magnetic signal writing device 90 can change the output state of the magnetic signals output by the magnetic output generating members 46a to 46h provided in the key 42 to a desired one.

In this embodiment, the magnetic output generating member 46X of the key 42 is
With regard to the above, the magnetic output generation state cannot be changed, but it goes without saying that the output state of the magnetic output generation member 46X can also be changed.

23, 24 and 25 are diagrams showing another example of the magnetic signal writing device. That is, FIG. 23 is a plan view of a magnetic signal writing device 110 of another embodiment, FIG. 24 is a plan sectional view for explaining the internal structure, and FIG. 25 is a line XX of FIG.
It is a sectional side view taken along V-XXV.

Referring to FIGS. 23 to 25, this magnetic signal writing device
In 110, the same or corresponding parts as those of the magnetic signal writing device 90 (see FIGS. 20 to 22) described above are designated by the same reference numerals. Therefore, detailed description of those parts is omitted here. This magnetic signal writing device 110 is characterized by the ferrite 10 that constitutes a magnetic path for magnetization / demagnetization.
The numbers 0, 102, the conductive substrate 104, the solenoid 106, and the conductive plate 108 are not provided in the numbers corresponding to the magnetic output generation members 46 of the key 42 to be magnetized / demagnetized.
It has only one simple structure. Therefore, the ferrite 100, 102 for forming the magnetic path, the conductive substrate 104,
The solenoid 106 and the conduction plate 108 are movably provided. Specifically, the slide fixing plate 112 is attached to one end of the solenoid 106, and the screw shaft 114 and the main shaft 116 extending in the moving direction of the solenoid 106 are inserted into the slide fixing plate 112. Both ends of the main shaft 116 are fixed in the housing 92, and the screw shaft 114 is held rotatably in parallel with the main shaft 116. Then, at one end of the screw shaft 114, a bevel gear 118, 1
A pulse motor 122 is coupled via 20. The rotation of the pulse motor 122 causes the screw shaft 114 to rotate. With the rotation of the screw shaft 114, the sliding fixed plate 112 and the solenoid 106 and the like attached to the sliding fixed plate 112 move in the direction of arrow 124. Is being done. Although not shown,
An encoder for detecting the rotation angle and the number of rotations is provided inside the pulse motor 112, and the number of rotations and the rotation angle of the pulse motor 112 and the position of the solenoid 106, that is, the magnetic configured by the solenoid 106 and the like. The road
Which of the magnetic output generating members 46a to 46h of the key 42 corresponds can be detected. For example, the position shown in FIG. 24 is set as an initial value, and from this position, the pulse motor 122
Is rotated three times to the right, the magnetic path formed by the solenoid 106 and the like corresponds to the next magnetic output generating member 46b, and the screw pitch of the screw shaft 114 and the bevel gears 118, 120.
The thread pitch of is selected. And the pulse motor 12
The rotation speed and rotation angle of 2 are detected by an encoder or the like and controlled by a control circuit (not shown), so that the magnetic path constituted by the solenoid 106 and the like always stops at a position corresponding to the magnetic output generation member 46. Has been enabled.

The solenoid circuit 1 is controlled by the control circuit of the pulse motor 122.
It is preferable that the magnetic path constituted by 06 and the like sequentially corresponds to the magnetic output generation members 46a to 46h for a predetermined time and is automatically moved. At that time, as shown in FIG. 24, it is preferable that an LED 121 is provided below the changeover switch 96 corresponding to the position where the magnetic path constituted by the solenoid 106 and the like is stopped, and the LED 121 is turned on.

The other configurations and operations are similar to those of the magnetic signal writing device 90 described above.

26, 27 and 28 are diagrams showing a magnetic signal writing device 126 of still another embodiment. That is, FIG. 26 shows a state in which the key 42 is inserted into the magnetic signal writing device 126, FIG. 27 shows a magnetic signal writing state, and FIG. 28 shows a state after writing. .

Referring to FIGS. 26 to 28, the magnetic signal writing device 126
Is provided with a key insertion hole 128, and the key insertion hole 1
A small protrusion 130 is formed on the inner surface of 28. The key 132 applied to the magnetic signal writing device 126 is a main body 134.
And a movable member 136 inserted into the main body 134 so as not to be seen from the outside. A spring 138 is provided between one end of the movable member 136 and the main body 134. Due to the extension force of the spring 138, the movable member 136 is normally positioned on the tip small hole 140 side as shown in FIG. 28. ing. On the other hand, when the key 132 is inserted into the key insertion hole 128, the small protrusion 130 causes the key 13 to
The second small hole 140 enters the main body 134 and pushes the movable member 136 against the force of the spring 138, so that the movable member 136 moves as shown in FIG.

Further, the movable member 136 has eight holes 137a to 137h formed at equal intervals along the length direction thereof. Then, exactly one magnet 142 is inserted into each of the holes 137a to 137h. Further, holes 139a to 139h are formed at equal intervals in the main body 134 facing the holes 137a to 137h of the movable member 136. Holes 139a-139h are also
Each of them is selected to have a size of exactly one magnet 142. Therefore, as shown in FIG. 26, the hole 1 on the body 134 side
When the holes 39a to 139h and the holes 137a to 137h on the movable member 136 side face each other, one magnet 142 is placed in each hole.
It is possible to move freely to any of the holes.

Further, when the key 132 is inserted into the magnetic signal writing device 126, the holes 139a to 139h provided in the main body 134 of the key 132 are provided.
Corresponding to, an electromagnet 144 and a changeover switch 96 connected to the electromagnet are provided. Therefore, the electromagnet 144 is turned on by switching the changeover switch 96, and the magnet 142 corresponding to the electromagnet 144 in the key 132 is attracted toward the electromagnet 144. Further, when the electromagnet 144 is not turned on, the magnet 142 is designed to fall into the holes 137a to 137h on the movable member 136 side by its own weight.

Next, the operation of rewriting the magnetic signal code of the key 132 will be described.

First, the key 132 to be rewritten is replaced by the magnetic signal writing device 126.
Fully insert into the key insertion hole 128 of. In the inserted state, the magnet 142 in the key 132 becomes as shown in FIG.
Then, the power is turned on and the changeover switch 96 is changed to a desired state. As a result, the electromagnet 144 is selectively turned on, and the magnet 142 is attracted to the hole 139 on the key body 134 side. This state is shown in FIG. And in that state key 13
When 2 is removed, as shown in FIG. 28, the hole 139 on the main body 134 side and the hole 137 on the movable member 136 side, which have been opposed to each other until now, are displaced, and the hole 139 on the main body 134 side and the hole on the movable member 136 side are displaced. Magnets 142 stop at 137 respectively. Therefore, depending on the position of this magnet 142,
Magnetic signal code of key 132 is switched to any code 96
Thus, the code information input operation means capable of inputting information on the code of the magnetic signal input from the key is configured. The magnetic signal writing devices 90, 110, 126 act on the magnetic output generation member so that the magnetic output state of the magnetic output generation member becomes a combination pattern according to the code input from the code information input operation means. The code writing means is configured.

[Effects of the Invention] According to the first aspect of the present invention, the key unit for unlocking the front frame and the glass door frame of the ball game machine is solved by the predetermined code information including the invisible magnetic output combination array. Since a key for locking is used, it is difficult to imitate the key, and the key unit can be made highly safe.

Further, the code information output from the key is determined by the arrangement of a combination of a plurality of magnetic output generators, the magnetic output does not change over time like a pulse signal, and the reading means side is arranged to In order to read the predetermined code information according to the combination pattern of the detection output states of the plurality of magnetic output detection units corresponding to the magnetic output generation unit, the predetermined signal is not required to be input for a predetermined period of time. The code information can be read, and the time required to read the magnetic signal can be shortened as much as possible, and the probability of noise entering during the reading time can be reduced, and malfunctions due to noise can be prevented as much as possible. Become. Moreover, it is not necessary to provide the key with the function of changing and outputting the magnetic signal with time, and the function for detecting and discriminating the change with time of the magnetic signal output from the key is also read. Since it is not necessary to have it on the means side, the structure is simple and the cost is low.

Moreover, since the front frame of the ball game machine and the glass door frame can be selectively unlocked by the common key unit, it is necessary for the employee to carry the key for the front frame and the key for the glass door frame, respectively. Absent.

According to the second aspect of the present invention, the code information of the key can be changed to the desired code information by the input operation by inputting the information regarding the desired code by the code information input operation means. Even if it is stolen, lost, or imitated, it is possible to use a key of code information of a different type from the code information of those problem keys, and those problem keys cannot be used. Can be

[Brief description of drawings]

FIG. 1 is a front view of the entire pachinko gaming machine to which an embodiment of the present invention is applied. FIG. 2 is an enlarged view showing a main part of the pachinko gaming machine of FIG. FIG. 3 is a perspective view of the key output detector. FIG. 4 is a perspective view showing an example of a key. FIG. 5 is a front view for explaining the internal structure of the key. FIG. 6 is a side sectional view taken along the line VI-VI in FIG. FIG. 7 and FIG. 8 are illustrative views showing a state in which a key is inserted in the key output detector. Fig. 9 shows 7
FIG. 9 is a side sectional view taken along the line IX-IX in the figure. FIG. 10 is a block diagram showing the configuration of the control circuit of this embodiment. FIG. 11 is a diagram showing a memory map of the RAM. FIG. 12 is a flowchart showing a frame opening process by the key. First
FIG. 13 is a flowchart showing the fraudulent opening interrupt detection processing of the frame. FIG. 14 and FIG. 15 are diagrams showing an example of the open / close detection switch provided on the glass door frame 22. 16 and 17 are views showing an example of the open / close detection switch provided on the front frame 20. FIG. 18 is a connection layout diagram of the control device in the case of controlling the opening and closing of the frame for each island stand. FIG. 19 is a diagram showing a connection relationship when the entire pachinko hall is centrally controlled by one control device. FIG. 20, FIG. 21 and FIG. 22 are views showing an embodiment of the magnetic signal writing device of the second embodiment of this application. 23, 24 and
FIG. 25 is a diagram showing another embodiment of the magnetic signal writing device. 26, 27 and 28 are diagrams showing still another embodiment of the magnetic signal writing device. In the figure, 10 is a pachinko game machine, 14 is a curtain plate, 16 is a key output detector, 20 is a front frame, 22 is a glass door frame, 30 is a key insertion groove, 42 is a key, 46 is a magnetic output generating member, 58 Detector, 62
Is CPU, 64 is RAM, 67,71 is frame open / closed detection switch, 90,110
And 126 are magnetic signal writing devices, 96 is a changeover switch, 10
Reference numerals 0 and 102 are ferrites, 104 is a conductive substrate, 106 is a solenoid, and 108 is a conduction plate.

Claims (8)

[Claims] 1. A key unit for a ball game machine having an outer frame, a front frame openably and closably provided on the outer frame, and a glass door frame openably and closably provided on the front frame, A plurality of magnetic output generators capable of generating a magnetic output are provided, and the magnetic output states of the plurality of magnetic output generators are arranged in a combination array according to predetermined code information. A key for selectively unlocking the glass door frame, and a plurality of magnetic output detection units corresponding to the plurality of magnetic output generation units, and a combination pattern of detection output states of the plurality of magnetic output detection units And a reading unit that reads the predetermined code information, and when it is determined that unlocking is possible based on the code read by the reading unit, the reading of the front frame or the glass door frame is performed based on the output of the reading unit. Unlocking means to unlock the lock Characterized in that it comprises a key unit for a pinball game machine. 2. The key unit for a ball game machine according to claim 1, wherein the magnetic output generating portion is composed of a magnetic output generating member that can be magnetized and demagnetized. 3. The magnetic output generating member is movably provided in the key, and the encoded magnetic signal output can be changed according to the position of the magnetic output generating member in the key. The key unit for a ball game machine according to claim 2, characterized in that there is. 4. A magnetic signal writing device for a key, which is provided with a plurality of magnetic output generating members capable of generating a magnetic output, and which is capable of outputting a predetermined coded magnetic signal. Code information input operation means capable of inputting and operating information relating to the code of the magnetic signal to be caused, and a code which acts on the magnetic output generation member so that the magnetic output state of the magnetic output generation member is input from the code information input operation means. A magnetic signal writing device for a key, comprising: a code writing means adapted to form a combination pattern according to. 5. The code writing means is a magnetizing / demagnetizing means for magnetizing or demagnetizing the magnetic output generating member to bring the magnetic output into an active state or a deactivated state. A magnetic signal writing device for the key according to item 4. 6. A magnetic signal for a key according to claim 5, wherein said magnetizing / demagnetizing means is provided corresponding to each magnetic output generating member provided in said key. Writing device. 7. A magnetic signal book for a key according to claim 6, wherein said magnetizing / demagnetizing means is movably provided so as to correspond to each of said magnetic output generating members. Device. 8. The magnetic output generating member is movably provided in the key, and the code writing means is means for moving the magnetic output generating member to a desired position in the key. A magnetic signal writer for a key according to claim 4, characterized in that