JPS6368189A - Unlocking apparatus of pinball machine - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention is a system for locking the glass frame and front frame (wooden frame) of a pachinko machine, or any one of them, by a solenoid using a single electronic key. The present invention relates to an unlocking device for a pachinko machine that unlocks electrically.

<Prior Art> Conventionally, in Japanese Patent Publication No. 53-31053, etc., an unlocking device for a pachinko machine is disclosed in which an unlocking solenoid is attached to a glass frame locking device of a pachinko machine, and the glass frame is electrically unlocked. Proposed.

This type of unlocking device that electrically unlocks the lock using a solenoid is configured so that a switch board is installed in the prize exchange office or control room to activate each solenoid, and the lock is unlocked from there. There is also a need for an attendant to unlock each pachinko machine from the outside using a key, such as when a pachinko ball gets stuck during a game.

<Problems to be solved by the invention> For these reasons, a method was considered in which a key switch was attached to the lock of each pachinko machine and the switch was turned on by inserting the key. Instead of the cylinder locks or magnetic locks used in pachinko machine locks, an unlocking device that uses a solenoid to operate the lock directly electrically without using mechanical parts improves the reliability of the device. This was requested from the viewpoint of weight reduction.

Therefore, it is possible to use a magnetic card type key device that is already used in general door locking devices, etc., but in this type of key device, the unlock code (number) of the lock is written magnetically on the key. The key card is inserted into the travel lock stirrup, the B11 code is read, and if the codes match, the lock is unlocked, so complex circuits such as an 81 code reader and writer are required. In addition, the method of manually writing the code on the key card may cause the magnetism to weaken over time.
There was a problem that the magnetic code could be damaged or destroyed by bringing a magnet or similar object close to it.

Means for Solving the Problems> The present invention has been made in view of the above-mentioned problems, and it uses an electronic key with a built-in simple electronic circuit to unlock the unlocking mechanism of a pachinko machine that is unlocked by the operation of a solenoid. The present invention provides an unlocking device for a pachinko machine that can be locked, has a simpler circuit configuration for reading key codes than magnetic codes, and is less likely to malfunction or break down. That is, as shown in FIG. 1, the unlocking device for a pachinko machine of the present invention is an unlocking device for a pachinko machine equipped with an unlocking mechanism operated by a solenoid. An electronic key 1 has a built-in circuit and outputs a predetermined key voltage from a plurality of contact terminals provided on the outside, and has a plurality of contacts that come into contact with each contact terminal of the electronic key 1. A contact part 2 that supplies power to the key and inputs the key voltage through another contact, a setting device 5 that can set two set voltages with a voltage difference in a switchable manner, and a contact part 2 that supplies power to the key and inputs the key voltage through another contact. A comparator that compares the sent key voltage and the two setting voltages sent from the setting device 5, and outputs an unlock signal when the key voltage exists between the two setting voltages, and an output from the comparator 4. The drive circuit 6 inputs the unlock signal generated by the unlocking mechanism 7, and drives a solenoid 8.10 provided in the unlocking mechanism 7.9 of the pachinko machine.

Therefore, when a predetermined electronic key 1 is inserted into the contact part 2 provided on the pachinko machine, a predetermined key voltage is output from the electronic key 1, and this key voltage is compared with two set voltages in the comparator 4. When the key voltage is between the two set voltages, the comparator 4 outputs an unlocking signal, and the drive circuit 6 inputting this unlocking signal drives the solenoid of the unlocking mechanism to perform the unlocking operation. will be carried out.

<Example> Embodiments of the present invention will be described below based on the drawings.

FIG. 1 shows a block diagram of a pachinko machine unlocking device. Reference numeral 1 designates an electronic key having a built-in electronic circuit and used as a key, and as shown in FIG. 2, five conductive contact terminals 11 to 15 are provided at the tip of a plate-like body. As shown in FIG. 3, these contact terminals 11 to 15 are supported by bearings 16 so as to be movable inward when pressed.
Each of the contact terminals 11 to 15 is biased outward by a coil spring 17 fitted onto the narrow diameter portion of each of the contact terminals 11 to 15. Inside the key, a resistor R1 is connected between the contact terminals 11 and 12, a Zener diode z1 is connected between the contact terminals 12 and 13 with its anode side facing the contact terminal 12, and a Zener diode z1 is connected between the contact terminals 13 and 14. A diode Z2 is connected with its anode F facing the contact terminal 14, a resistor R2 is connected between the contact terminals 14 and 15, and furthermore, the contact terminals 11 and 15 are short-circuited. Here, the contact terminal 11 is for power supply.

Terminal 7, from which a stabilizing voltage of, for example, DC 12■ is applied at the time of contact, contact terminal 13 is a ground terminal, contact terminal 15 is a dummy terminal, contact terminal 12 is an X output terminal that outputs a key voltage (EX), The contact terminal 14 then becomes a Y output terminal that outputs the key voltage (EY). resistance R1,
The values of R2 and the Zener diodes Z1 and Z2 are set so that the voltage EX at the X output terminal and the voltage EV at the Y output terminal are between two set voltages EXH and EXL, which will be described later. The voltages EX and EY at the X output terminal and Y output terminal with their own Zener voltage
used to stabilize.

The contact part 2 is a part into which the electronic key 1 is inserted for unlocking, is provided in a part of the pachinko machine, and is configured as shown in FIG. 4. That is, the contact part 2 is connected to the electronic key 1
Five contact pins 21 to 25 are protruded as contacts inside the recess 20 into which the key is inserted, and the contact pin 21 contacts the contact terminal 11 of the electronic key 1 when inserted, and the contact pin 22
contacts the contact terminal 12, and the contact pin 23 contacts the contact terminal 13.
The contact pin 24 is configured to contact the contact terminal 14 , and the contact pin 25 is configured to contact the contact terminal 15 .

The contact bin 21 is connected to, for example, a stabilized power supply of 12V DC, the contact bin 22 is connected to the input terminal Connected to terminal Y, contact pin 25
is open. Note that the contact pin 23 is located at a position about 11 points back from the other pins, and does not come into contact with the contact terminal 13 when the electronic key 1 is simply inserted, but comes into contact when the key is slightly pressed.

The comparator 4 consists of a pair of window comparators as shown in FIG. 5, and the key voltage EX of the input terminal
X) Two set voltages EY which are between I and EXL and where the key voltage EY of the input terminal Y is set in advance by the setting device 5)
The comparator is configured to output a high level signal only when the signal is between l and EYL. The setting device 5 is the sixth
As shown in the figure, by connecting the resistors Rtt to R22 and the Zener diodes Z11 to Z22 to a stabilized power supply, and switching the two double rotary switches SL and 32, six types of set voltages EXH and EXL can be set for the input terminal X. and six types of setting voltages EYH, EYL for input terminal Y.
and terminal X)! , XL, Yl(, YL).

Set voltage EXH, EXL, and E Y)! ,! l:E
YL is set at a high or low level so as to have a voltage difference of about 1 to 2 cm, and is set as shown in Table 1 below according to the positions of rotary switches S1 and S2.
'c is set to 12V.

Table 1 As shown in the table above, the set voltage EX)l(EYH) and E at each switching position of the rotary switch S1.32
XL (EYL) is set to a voltage width that does not overlap, and the key voltage EX (EY) generated from the electronic key 1 described above is 2.
The resistors R1 and R
2, the Zener voltage of the Zener diodes z1, Z2 is determined.

Therefore, in this embodiment, rotary switch Sl and 5
It is possible to switch and set 36 different setting voltages just by switching 2, and 36 types of keys can be selectively used without changing the elements in the setting device 5. Also, by changing the resistance value of the resistor in the setting device 5 and the Zener voltage of the Zener diode, the set voltage EXH (EYH), EXL
(EYL) The key voltage EX(EY) of the electronic key 1 that can be used can also be changed, making it possible to create many types of keys.

Further, by changing the arrangement and number of the contact terminals 11 to 15 of the key, a considerably large number of types of keys can be made.

A drive circuit 6 consisting of a switching transistor TR and a relay IR is connected to the output side of the comparator 4, and when a high level signal is output as an unlock signal from the comparator 4 when the lock is unlocked using the proper electronic key 1, the transistor This structure is such that when TR becomes conductive, the relay IR is energized, and the contact IRa connected to the power circuit of the solenoid 8.10 of the front frame unlocking mechanism 7 or the glass frame unlocking mechanism 9 is turned on. Between the drive circuit 6 and the solenoid 8.10, a changeover switch SS for switching between unlocking of the front frame and the glass frame is provided in, for example, a part of a pachinko machine, and this changeover switch SS selectively unlocks the front frame and the glass frame. It will be unlocked.

The front frame unlocking mechanism 7 is a known unlocking mechanism that is attached to the main body frame side or the front frame of the pachinko machine, and is engaged with a locking hook attached to the opposite position of the front frame or the main body frame by the operation of a solenoid 8. This is a structure to be released.

The glass frame unlocking mechanism 9 is a known unlocking mechanism attached to the front frame of the pachinko machine, and the locking hook provided on the glass frame and the locking hook on the front frame are engaged by the operation of a solenoid 10. This is a structure to be released. Note that the front frame unlocking mechanism 7 is
Once the solenoid 8 is activated and the locking hook is released, the unlocked state is mechanically maintained and the solenoid 8
Alternatively, energization to 10 can be carried out for a short time, thereby preventing heat generation. 5. In the front frame unlocking mechanism 7 and the glass frame unlocking mechanism 9, when the front frame or glass frame is closed, each locking hook or hook portion is biased by a coil spring or the like and automatically becomes locked. It is a structure.

A sequential unlocking circuit 3 is connected to the input side of the drive circuit 6 in order to automatically sequentially unlock the unlocking mechanisms of a large number of pachinko machines. For example, the sequential unlocking circuit 3 outputs a high level signal with a fixed time width when the sequential unlocking switch JS is turned on.
It is composed of a one-shot timer or the like, and when the unlocking switches JS are turned on sequentially, a high level signal with a width of, for example, 0.5 seconds is output to the drive circuit 6, and the solenoid of the unlocking mechanism is operated for 0.5 seconds. The output side of this sequential unlocking circuit 3 is also connected to a sequential unlocking circuit of a similar structure in the unlocking device of the next pachinko machine, and the next sequential unlocking circuit is connected to the high voltage output from this sequential unlocking circuit 3. A trigger signal is generated at the falling edge of the level signal, and the trigger operates to output a high level signal with a fixed time width to the drive circuit of the pachinko machine. In this way, the sequential unlocking circuit of each pachinko machine performs the unlocking operation in synchronization with the fall of the high-level signal sent from the previous pachinko machine, thereby pachinko ml M ti,
The unlocking devices of all the pachinko machines in the hall can be activated automatically and sequentially.

Note that the sequential unlocking of the glass frame or front frame of a pachinko machine is normally done to adjust the machine after the machine is closed, but in order to operate the unlocking mechanism of each pachinko machine in sequence, many solenoids are activated simultaneously. This prevents a momentary large current from being applied to the power supply, and the rated current of the commercial power supply, etc. can be kept low.

Such a pachinko machine unlocking device is installed in each pachinko machine except for the setting device 4 and the sequential unlocking switch JS, and the setting device 4 and the sequential unlocking switch JS are installed in the management room or "island" of the pachinko playing hall. It is installed on the control panel provided.

Next, to explain the operation of the unlocking device, when unlocking the front frame of a pachinko machine, first switch the changeover switch SS to the front frame side, and when unlocking the glass frame, change the changeover switch SS to the glass frame side. Insert the specified electronic key into the contact part 2 and press it slightly. Then, the contact bins 21 and 23 of the contact part 2
The power supply voltage is applied to the electronic circuit in the electronic key 1 through the contact terminals 12 and 14, and the key voltages EX, EY are outputted through the contact pins 22 and 24.
The comparator 4 in which Y is input to one input side of the comparator 4 is
These two types of key voltages EX and EY are converted into two types of two setting voltages EX) sent from the setting device 5.1. EXL,EY
When the key voltage EX is between the two set voltages EXH and EXL and the key voltage EY is between the set voltages EYH and EYL, a high level signal is sent to the drive circuit as an unlocking signal. It is output to transistor TR of No. 6. This makes transistor TR conductive and relay IR
is energized, its contact IRa turns on, and the selector switch S
The solenoid 8 or 10 switched by S is activated, and the front frame unlocking mechanism 7 or the glass frame unlocking mechanism 9 of the pachinko machine is activated.
performs an unlocking operation and the front frame or glass frame is opened. If the solenoid 8 or 10 operates momentarily (for example, about 0.5 seconds), the unlocking mechanism can be activated, but simply inserting the electronic key 1 into the contact part 2 does not perform the unlocking operation. By pressing the 7ft child key 1, all contact terminals 11 to 15 and contact pins 21 to 25 are removed.
This creates the reliable contact and time needed to unlock the lock.

On the other hand, if the electronic key 1 is unauthorized, the predetermined key voltages EX and EY will not be input to the comparator 4, and the comparator 4 will not output the unlock signal, so the solenoid 8.10 will not operate. The front frame unlocking mechanism 7 and the glass frame unlocking mechanism 9 do not perform an unlocking operation.

When adjusting the pachinko machines, etc., to unlock the glass frames or front frames of all pachinko machines, turn on the unlock switches JS in the control panel installed in the management room or the like. Then, an unlocking signal is sequentially outputted from the unlocking circuit 3 of each pachinko machine to its drive circuit 6, and all the glass frames or front frames are sequentially unlocked.

<Effects of the Invention> As explained above, according to the unlocking device for a pachinko machine of the present invention, an electronic key having a built-in simple electronic circuit consisting of a resistor and a Zener diode is used, and the output from the electronic key is Since the key voltage is compared with two set voltages and an unlocking signal is output, the device can be used for a long period of time with excellent durability without being affected by magnetism like a magnetic card, for example. In addition, the entire circuit of the device can be configured much more easily than magnetic card readers, etc., which reduces the manufacturing cost of the device and makes it almost impossible to unlock the device with a duplicate electronic key or unauthorized key. can do.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, in which Fig. 1 is a block diagram of the unlocking position "A", Fig. 2 is a perspective view of the electronic key, Fig. 3 is a sectional view of the key, and Fig. 4 is a contact portion of the electronic key. 5 is a circuit connection diagram, and FIG. 6 is a circuit diagram of the setting device 5. 1...Electronic key, 2...Contact part, 4...Comparator, 5... Setting device, 6... Drive circuit, 7... Front frame unlocking mechanism, 8... Solenoid, 9... Glass frame unlocking mechanism, 10... Solenoid. Patent application Hitomoriyama Kogyo Co., Ltd. company

Claims (1)

[Scope of Claim] An unlocking device for a pachinko machine equipped with an unlocking mechanism operated by a solenoid, which includes an electronic circuit consisting of a resistor and a Zener diode, and receives a predetermined key voltage from a plurality of contact terminals provided on the outside. and a contact that has a plurality of contacts that come into contact with each contact terminal of the electronic key, supplies power to the electronic key through some of the contacts, and inputs the key voltage through other contacts. a setting device configured to switchably set two setting voltages having a voltage difference; and a setting device configured to set the key voltage sent from the contact portion and the two setting voltages sent from the setting device when the electronic key is inserted. A comparator that compares and outputs an unlock signal when the key voltage is between two set voltages, and a comparator that inputs the unlock signal output from the comparator and is provided in the unlock mechanism of the pachinko machine. An unlocking device for a pachinko machine, comprising: a drive circuit that drives a solenoid;