JPH0628151Y2 - Automatic Mahjong table wall tile control device - Google Patents

Description

[Detailed description of the device] [Industrial applications]

The present invention relates to a castle wall tile number control device for an automatic mahjong console that can regulate the number of castle wall tiles stacked on a table surface to a predetermined number according to a game mode.

[Prior art]

It is possible to automatically perform the operation of mixing the tiles, the operation of turning the mixed tiles into a face-down tile, the operation of aligning the tiles to form a two-tiered castle wall tile, and the operation of lifting the castle wall to the tabletop. The automatic mahjong table that can be done is well known, and the castle wall tiles are usually formed on a waiting stand that is constructed so as to be able to move up and down, and the number of tiles required to form the castle wall tiles on this waiting stand is usually known. It is designed so that the tiles can be sent by a computer command. By the way, a mahjong game is usually played by four players using 136 tiles, but in some cases, a game may be performed by adding flower tiles, or three players may play the game. It is necessary to increase / decrease the number of tiles to be used based on the rule, and accordingly, it is also necessary to increase / decrease the number of wall tiles formed on the waiting stand according to the number of tiles to be used. That is, when a normal game is played using a total of 136 tiles, 17 tiles x 2 layers = 34 tiles of wall tiles may be stacked on the waiting stand at each place, but for example, 4 flower tiles In addition, when playing a game with 140 tiles in total, 1 on each stand in 2 places (eg east and west) out of 4 places in total.
It is necessary to stack 8 tiles x 2 layers = 36 tiles.
When playing a game with three players, it is necessary to reduce the number of tiles used for the purpose of not lowering the interest in the progress of the game from the regular number of tiles. For example, three players use a total of 108 tiles. In this case, the number of tiles in any one of the fields (for example, the south field) is set to zero, and 18 tiles are placed on each stand of the remaining three fields.
Tile x 2 layers = 36 tiles must be piled up,
Furthermore, for example, when a game is played by three people using a total of 112 tiles including 4 tiles, 17 tiles × 2 tiers = 34 tiles on each waiting stand in each of the three places. While stacking tiles, it is necessary to stack 5 tiles x 2 layers = 10 tiles on the waiting stand of the remaining one place (for example, the south place). Therefore, as disclosed in Japanese Utility Model Laid-Open No. 61-159987, the present applicant successively sends the tiles that are mixed and turned into a face-down tile onto a waiting stand to sequentially stack the two-tiered wall tiles. In the automatic mahjong table configured so that this castle wall can be raised to a table by an elevating table, a blocking plate is projected at a predetermined position of the waiting table by an exciting operation of an electromagnetic solenoid, and a waiting plate is formed. We have already proposed a castle wall tile number control device that can regulate the number of tiles sent to the top. That is, FIG. 4 of the accompanying drawings shows the above-mentioned conventional castle wall number control device. This conventional device includes an electromagnetic solenoid 2 attached to a fixed frame 1 and a stop plate 3 operated by the electromagnetic solenoid 2. It is composed by. Reference numeral 4 denotes an actuating lever whose intermediate portion is connected to the plunger 2a of the electromagnetic solenoid 2 and whose upper end is rotatably supported by a support shaft 5 provided on the projecting piece 1a of the fixed frame 1. A base portion 3a of the stop plate 3 is pivotally attached 6 to the portion.
Reference numeral 7 is a return spring that is hung between the stop plate 3 and the lower portion of the fixed frame 1, and 8 and 9 are a stand provided inside the table so as to surround a hopper (not shown) in a square shape. It is a lift. In the conventional device configured as described above, when the electromagnetic solenoid 2 is excited by energization and the plunger 2a is pulled in, the actuating lever 4 is rotated as shown in the drawing to rotate the stop plate 3.
Can be operated to the left in the figure, and the tip portion 3b of the stop plate 3 can be projected onto the standby table 8 from the opening portion 10a provided in one side wall of the guide passage 10. The lower end of the tip of the stop plate 3 protruding from the opening 10a is a notch 8a provided in the standby table 8.
At this stage, the locking step portion 3c formed in the lower portion of the stop plate 3 is placed under the action of the return spring 7 and is opened.
0a is engaged with the lower edge portion of the electromagnetic solenoid 2, and even if the excitation of the electromagnetic solenoid 2 is cut off, the stop plate 3 is kept in a protruding state. Reference numeral 11 is a release piece provided on the back surface of the stand 8.
Is lifted by the release piece 11 when the standby table 8 rises, disengages the locking step 3c from the opening 10a, and is retracted from the standby table 8 by being pulled by the return spring 7.

[Problems to be solved by the device]

In the above-mentioned conventional device, the electromagnetic solenoid 2 is turned on for several seconds, and the stop plate 3 is mechanically temporarily fixed by the locking step portion 3c formed on the lower part thereof, while the stop plate 3 is released when the standby table 8 is raised. Since it is performed by the release piece 11, unless the tip portion 3b of the stop plate 3 is correctly inserted into the guide passage 10 during the ON period of the electromagnetic solenoid 2, a malfunction such as the stop plate 3 returning to the retracted position may occur. If the stop plate 3 is not unlocked when the stand-by table 8 is raised, an excessive load is applied to the stand-by table 8 side, and the stand-by table 8 is damaged.

[Means for solving problems]

The present invention solves the above problem, and when the number of tiles to be used is changed by changing the game content, the purpose of the present invention is to make the tiles of the castle wall according to the changed game mode extremely easy and accurate. In addition, it is to provide a castle wall number control device for an automatic mahjong table that can be stacked on each stand and is highly reliable without any breakdown. Therefore, the above object of the present invention is to send the tiles face down to form a two-tiered castle wall tile, and the castle wall tiles can be raised on the table by the elevator. In the automatic mahjong table configured as described above, a stop plate that is installed facing a predetermined position of the standby table, and that restricts the number of tiles that are projected onto the standby table and sent to the standby table by the excitation operation of the electromagnetic solenoid, This is achieved by the castle wall tile number control device of the automatic mahjong table, which is configured to include a control unit that detects that the stop plate is projected on the stand and switches the operating current of the electromagnetic solenoid to the holding current.

【Example】

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a front sectional view showing an embodiment of the present invention, and FIG. 2 is a side view thereof. The same or corresponding members as those of FIG. 4 are designated by the same reference numerals, and the description thereof will be omitted. In FIGS. 1 and 2, 3d is a base portion 3a of the stop plate 3.
The step portion formed in the side portion functions as a stopper that engages with the opening edge 1c formed in the lower portion 1b of the fixed frame 1 when the stop plate 3 is returned to the backward direction. Reference numeral 12 is a light shielding plate provided integrally with the operating lever 4, and the electromagnetic solenoid 2 is controlled by the control unit 13 in cooperation with the light shielding plate 12,
Reference numeral 14 is a sensor functioning as one of the members constituting the control unit 13. FIG. 3 shows an electric circuit of the control unit 13,
Reference numeral 3 denotes an operation command unit A for generating an ON / OFF command signal to the electromagnetic solenoid 2 and a detection unit B for detecting the operation of the electromagnetic solenoid 2 according to the command signal from the operation command unit A.
And the electromagnetic solenoid 2 according to the detection signal of the detection unit B.
It is composed of an actuating section C for operating. The operation command section A includes a command signal generating circuit 15, a resistor 16 and a transistor 17, the base electrode of the transistor 17 is connected to the command signal generating circuit 15 via the resistor 16, and the emitter electrode is connected to the ground 28. . The detection unit B includes a sensor 14, resistors 18 and 19 and a capacitor 20.
The sensor 14 is composed of a light emitting diode 21 and a phototransistor 22. The light emitting diode 21 is connected to the power supply terminal 27 via the resistor 18 and the collector electrode of the transistor 17 in the operation command section A, and the collector electrode of the fat transistor 22 is connected to the power supply terminal 27 via the resistor 19, respectively. The capacitor 20 is connected between the emitter electrode and the power supply terminal 27. The operating portion C is a transistor 24 which is a switching element,
It is composed of a surge absorbing diode 25 and a current limiting resistor 26. The base electrode of the transistor 24 is connected to the phototransistor 2 of the detection unit B via the resistor 23.
2 is connected to the emitter electrode, and the collector electrode of the transistor 24 is connected to one terminal of the coil 2b of the electromagnetic solenoid 2 and the surge absorbing diode 2
Is connected to the other terminal of the coil 2b via 5,
A current limiting resistor 26 is connected in parallel between the collector terminal and the emitter terminal of the transistor 24. When the electromagnetic solenoid 2 is excited by the control signal from the control unit 13 and the plunger 2a is pulled in, the main castle wall number control device configured as described above causes the operating lever 4 to rotate as shown in FIG. By moving the stopper plate 3 in the leftward direction in the figure, the tip portion 3b of the stopper plate 3 can be projected onto the standby table 8 through an opening 10a provided in one side wall of the guide passage 10. When the electromagnetic solenoid 2 is turned off by the control signal from the controller 13, the stop plate 3 is moved to the right in FIG. 1 by the return spring 7, and the tip 3b of the stop plate 3 is separated from the guide passage 10. To do. More specifically, when a solenoid-on signal is output from the command signal generation circuit 15 of the control unit 13 shown in FIG. 3, the transistor 17 is turned on, and the current flows from the power supply terminal 27 through the resistor 18, the light emitting diode 21, and the transistor 17. Flows, the light emitting diode 21 emits light, and the phototransistor 22 becomes conductive. When the phototransistor 22 is turned on, the transistor 24 of the actuation unit C is turned on, the transistor 24 is turned on, and a current flows from the power supply terminal 27 through the coil 2b of the electromagnetic solenoid 2, the transistor 24, and the transistor 17 of the operation command unit A, The electromagnetic solenoid 2 is excited. When the electromagnetic solenoid 2 is excited, as shown in FIGS. 1 and 2, the plunger 2a is attracted and the actuating lever 4 rotates clockwise in FIG. 1, and the tip 3b of the stop plate 3 moves. The light shield plate 12 is inserted into the sensor 14 while protruding into the guide passage 10. The light shielding plate 12 turns off the phototransistor 22 shown in FIG. When the phototransistor 22 is turned off, the transistor 24 of the operating section C is also turned off, and the power supply terminal 27 causes the coil 2b of the electromagnetic solenoid 2 to move.
The current limiting resistor 26 and the transistor 1 of the operation command section A
A holding current flows through 7. Here, the resistance value Rb of the current limiting resistor 26 is set to be larger than the resistance value Rc of the coil 2b, and the holding current is a small current that can hold the excitation of the electromagnetic solenoid 2. Therefore, after the sensor 14 detects the light shielding plate 12, the energization of the electromagnetic solenoid 2 is reduced to a voltage that can hold the plunger 2a,
The stop plate 3 will be maintained at low power. When a predetermined number of tiles P are aligned on the stand 8, the command signal generation circuit 15 of the operation command section A issues a solenoid off command signal to turn off the transistor 17. When the transistor 17 is turned off, the holding current of the electromagnetic solenoid 2 is cut off, the electromagnetic solenoid 2 is turned off, and the stop plate 3 is retracted and returned by the return spring 7. The castle wall tile control device having the above configuration is installed at a position facing a stand installed in each of the north, southwest, and east of the automatic mahjong table. For example, the waiting stands 8 in each of the east, west, and north fields can be loaded with a maximum of 18 tiles in a horizontal row.
A fixed stopper is provided at the bottom of the table, and the remaining waiting stand 8 in the south is provided with a fixed stopper at the side of the table so that a maximum of 17 tiles can be fed in one horizontal row. And, the controller for the number of tiles on the main wall is set on the 17th tile for the waiting stands 8 in each of the east, west and north fields, and on the 5th tile for the waiting stand 8 in the south. To be done. Further, by setting the game mode, the timing of the on / off signal from the command signal generating circuit 15 of the operation command section A is set, and the respective electromagnetic solenoids 2 are excited so that the respective standby tables 8 in the north, south, east, and west are provided with predetermined timings. You can stack a number of tiles in a row. It is to be noted that, as described above, each waiting stand 8 is constructed such that when a predetermined number of tiles are piled up, the tiles are lowered by one step, and the tiles are piled up again to pile up the two-tiered castle wall tiles.

[Effect of device]

According to the castle wall tile number control device of the driven mahjong table according to the present invention,
The locking plate provided on each standby table moves forward and backward with respect to the standby table by turning the electromagnetic solenoid on and off, and the number of tiles stacked on the standby table can be automatically adjusted to each game mode. Of course, the operating power of the electromagnetic solenoid is switched to a holding power lower than the initial starting power after detecting that the stop plate has operated reliably, and the stop plate can be held in its operating position, so that the control plate malfunctions. It is possible to completely prevent troubles such as breakage of the standby stand due to improper release, and to realize economical efficiency that enables power consumption to be saved.

[Brief description of drawings]

FIG. 1 is a front sectional view showing an embodiment of the present invention, FIG. 2 is a side view thereof, FIG. 3 is an electric circuit diagram of a control unit, and FIG. 4 is a front sectional view showing a conventional device. In the figure, P is a mahjong tile, 2 is an electromagnetic solenoid, 3 is a stop plate,
8 is a stand-by stand, 9 is a lifting stand, 12 is a light-shielding plate, 13 is a control unit, 14 is a sensor, A is an operation command unit, B is a detection unit, C
Is the working part.

Claims (1)

[Scope of utility model registration request] 1. An automatic structure in which a tile laid face down is fed onto a stand to form a two-tiered castle wall tile, and the castle wall tile can be raised to a table by an elevator. In a mahjong table, a stop plate that is installed facing a predetermined position of the standby table and that controls the number of tiles that project on the standby table and are sent to the standby table by the excitation operation of an electromagnetic solenoid, and the stop plate are described above. A controller for detecting the number of castle walls of an automatic mahjong table, comprising: a controller for detecting that the electromagnetic solenoid has been projected onto the standby table and switching the operating current of the electromagnetic solenoid to a holding current.