JPS6021742B2 - Two-tier stacking device for tiles at an automatic mahjong table - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic mahjong table, and more particularly to a corner two-tier stacking device for forming two-tier stacks of tiles on four-sided tile placement tables.

As shown in Fig. 13, this two-tiered tile stacking device has a tile distribution table A that has a saw-toothed slope on its upper surface and is supported in a vertically movable manner, and permanent magnets B are installed at predetermined intervals. Consisting of a suspended chain conveyor C, tiles P suspended from magnets B and traveling are brought into contact with a stopper S or tiles P' that have already fallen on the tile distribution table A, forming a two-tier stack one after another. A device has been devised by the present inventor (see Jitoseki Sho 53-2 Ima No. 67).

However, in this two-tier stacking device, the stopper S stands up vertically regardless of the sawtooth inclined surface of the tile distribution table A, so that the tiles P' on the tile distribution table A are higher than the tiles P'' below. The tiles are stacked in two tiers in a protruding zigzag pattern.
When the tile P falls from the permanent magnet B by colliding with the tile P' that is falling above, the tile P is moved by the amount that the upper tile P' protrudes.
The tiles P tend to come off the predetermined slope, and there have been cases where the tiles P fall across the two sawtooth slopes and are not stacked in two tiers. Furthermore, when two stacks of predetermined rows (17 rows) are formed on the tile placement table A, the tabs T are removed and the tile placement table A is instantly lowered in order to allow the tiles suspended by the conveyor C to pass. However, this caused a considerable impact on the descending end of the tile placement table A, and together with the zigzag two-tier stack, there was a risk that the two-tier stack that had been formed would be broken. . Furthermore, tile distribution table A with two stacked tiles
is made to wait below the conveyor C, which is more than three times the thickness of the tiles, and in this state, the two-tiered tiles are transferred from the tile distribution table A to the pallet, so the vertical stroke of the pallet becomes extremely large, and the The radius of the crank used to drive the pallet became larger, leading to an increase in the size of the mahjong table, especially in the thickness direction. Therefore, in the present invention, a stopper is installed at each end of the four bottle distribution stands in the downstream direction of the conveyor so as to be perpendicular to the sawtooth slope, and among these stoppers, the stopper is installed at the end of the four bottle distribution tables in the downstream direction of the conveyor. The stoppers that appear on the three tile distribution tables excluding the tile table are movable stoppers that can appear and retract at will, and counters are also placed facing these movable stoppers to count the tiles that are attracted to the magnet and run. When a predetermined number of passing tiles is counted by the counter, a movable stopper is attracted to a magnet and obstructs the path of the traveling tiles, thereby solving the above-mentioned drawbacks. The purpose is to provide a device.

Embodiments based on the present invention will be described below along with the drawings. In Figure 1, 1 is an automatic mahjong table, and 2 is a chest that supports it.

When the competition phase is over, one of the players sitting in the adjacent position presses the start switch 14 provided on the outer edge of the top surface of the automatic mahjong table 1, and the electric circuit of this switch is activated. When the switch is closed, this electrical signal is sent to the bush-type solenoid 15 via a switch 19 fixed near the opening/closing opening 4 on the underside of the deck 3.

As shown in FIG.
The claw 17 attached to the tip of the opening and closing opening is hooked onto the support arm 16 that is fixed and protruding approximately in the middle of the deck 3.
is held at the same level as the height. Start switch 14
The bush-type solenoid 15 receives an electric signal from the magnet, and the tip of the plunger (movable iron core) flies off the plunger 17 and is removed from the support arm 16, so that the opening/closing opening 4 pivots around the hinge 18. It can be lowered to the position shown by the chain line and a closure can be provided on the deck. The contestant throws the group of tiles that have been played into the table through this opening. When the injection is completed, the contestant presses the start switch 14 again to send an electric signal, and as the opening/closing port 4 is lowered, the switch 19, which is pressed on the bottom surface and changes the circuit, sends the electric signal half a turn. Send it to the organization.

The half-rotation mechanism has a solenoid 21, as shown in FIG.
At the same time, from the notch 23 of the half-rotation wheel 22 which is fixed to the rotation shaft of the As the circuit is closed by pressing, the half-rotation motor 20 starts its rotational movement. When the rotary motion turns half a turn, another notch 24 provided on the opposite side of the notch 23 of the half-rotation wheel comes to the lower position, so the claw 25 is moved into this notch by the restoring force of the spring 27. 24, suppressing the rotational movement of the motor and opening the electric circuit of the switch 26, so that the interlocking rotation is stopped. This rotational motion is transmitted by gear 28 to crankshafts 29 provided directly below pallets 12 arranged on all sides, as shown in FIGS. 2 and 4.

The pallet 12 and the crankshaft 29 are connected and held at two force points each by a crank mechanism as shown in FIG.

That is, the pallet 12 is connected to the rotating shaft at the upper end of the crank rod 30.
By the half-rotation movement of the crankshaft 29, it is guided by the guide plate 31 and descends vertically, stopping at the lowest platform shown by the chain line in the figure. At this time, at the lower pole, the electric circuit is closed by pressing the switch 32 on the lower surface of the pallet, and an electric signal is sent to the single rotation solenoid 34 provided close to the single rotation motor 33. This single rotation mechanism is shown in FIG.
The solenoid 34 is energized by receiving an electric signal from the solenoid 34, and the claw 35 connected to the plunger (movable iron core) is activated from the notch of the half-rotation wheel 36 fixed to the rotating shaft of the single-rotation motor 33. At the same time when the switch 37 is disconnected, the electric circuit of the switch 37 connected to the motor drive circuit is closed, and the motor starts rotating.

At the point when the motor has made one revolution, the spring 38 presses it again into the notch of the single-rotation wheel 36 to suppress the rotation of the motor, and at the same time opens the circuit of the switch 37, so that the motor has made one revolution. Stop at a position.

This one-rotation motion is transmitted from the coaxial sprocket 39 to the chain 40, and further to the sprocket 41 of the push plate device provided at the lower center of the tile distribution table 10 arranged on all sides. Since the sprocket 39 described in connection with the single rotation device and the sprocket 41 used in this push plate device have the same number of teeth, the chain 40 reliably transmits one rotation motion. Reinstallation of the push plate is shown in FIG. 7, and the sprocket 41 of this device has the following:
An arm is fixed to the upper surface, and a roller 42 is attached to the tip of the arm.

On the lower surface of the slider 44 attached to the guide bar 43, there is a horizontal groove provided in a direction perpendicular to the guide bar.
A roller 42 is attached to this. With one rotation of the subrocket 41, the slider 44 makes one reciprocating piston movement along the guide rod 43. That is, as a result of this movement, the push plate 13 fixed to the upper part of the slider moves down and stops the standby tile rows 45, which are already waiting in a predetermined number of two stacks on the tile distribution table 10. Move it to the position indicated by the one-dot chain line on the pallet 12. Also, this slider 44 moves the snap switch 4 at the forward pole of the piston movement.
6 is pushed down in the opposite direction to form a reverse rotation circuit for the half-rotation motor 20, and at the same time, an electric signal is also sent to the half-rotation solenoid 21, and at the same time, the chain conveyor motor 47 and the slope conveyor motor 47 are The drive circuit of the motor 48 (FIGS. 2 and 4) is also closed and turned on. The electrical signal sent to the half-rotation solenoid 21 causes a reverse half-rotation motion by the half-rotation mechanism shown in FIG. The crank mechanism shown in the figure rotates half a turn in the reverse direction, and the pallet 12 rises with the row of standby tiles 45 indicated by a dashed dot line on it, and comes to rest at a position on the same plane as the deck 3.

In this way, the row of standby tiles shown by the two-dot chain lines rising onto the deck from all sides forms the castle wall tiles, and the next phase of the competition begins. Support arm 1 protruding from the pallet
6 scoops up the claw 17 of the opening/closing opening 4, closing the opening/closing opening and making it completely possible to start the next competition. The chain conveyor motor 47 and the slope conveyor motor 48 whose drive circuits are connected by the snap switch 46 start rotating, and the chain conveyor 9 further transmits the rotational movement to other sprockets 49, as shown in FIGS. As shown in FIG. 4, a belt pulley 50 coaxially fixed to the subrocket transmits rotational motion from the turntable 5 and friction wheel 52 to the ring 6 and to the selector 7 via a belt 51, respectively.

Group of tiles 53 thrown into the tabletop from opening/closing port 4 mentioned at the beginning
are piled up randomly on the turntable 5 as shown in FIG. 4, and as the turntable rotates, the marking sheep also rotate, and are successively removed by the obstacle rods 54-1 shown in FIGS. 2 and 4. It is moved circumferentially and further onto the outer ring 6 by the obstacle 54-2.

The ring 6 is at its lowest position at 55, which is lower than the top surface of the turntable, and the friction wheel 52 and three guides are positioned so that the ring 6 is at its lowest position at 55 and is several centimeters higher than the turntable at 56 on the opposite side. It is supported and rotated by a wheel 57 in a rigid state.

The tiles guided onto the ring 6 move on this, and if the bottle is in a position other than the prostrate position, i.e., in a standing position or in a standing position, it will be knocked down by the obstacle stick 54-3, or it will turn again. returned to the table.

In this way, only the tiles in the prostrate position will pass directly under the selector 7. As shown in FIG. 9, the selector 7 has a permanent magnet 59 such as ferrite continuously fixed to the lower outer periphery of a rotating disk 58, and the flat tiles on the ring 6 leave a slight gap. It is set at a height that allows you to pass through it.

Furthermore, all the tiles used in the present invention have iron weights 60 which are usually buried inside the tiles 60 as shown in FIG.
1 is reburied in a position close to the surface of the back plate 62 of the tile.

As a result, among the flat tiles passing directly under the selector 7, those with the back plate 62 facing upward are energized by the iron weights 61 inside, and fly up and are attracted to the magnets 59.

At this time, the permanent magnets are arranged in alternating N and S poles as shown in Figure 9, and the iron weights 61 inside the tiles are reshaped to be longer in the longitudinal direction, so the tiles fly up and are attracted. According to the characteristics of the magnet, when the tiles are attracted, their longitudinal direction is naturally parallel to the tangent to the disk 58, and the posture of the tiles is uniformly controlled in this direction. The flat tile passing with the back slope of the tile is outside the excitation range of the permanent magnet, passes without being attracted, and is returned to the top of the turntable 5 by the obstacle 54-5, but this position Since the tile is higher than the turntable, it moves as if falling from the ring, but it hits the reversing protrusion 63 provided in the middle of the falling trajectory and receives a shock, and the tile is reversed and falls on the top of the back board. Move onto the turntable in a posture. The moved tiles go through the process described above and are again transferred directly below the selector where they are attracted. This is useful for increasing the adsorption efficiency of the selector and increasing the probability of attitude control. Due to this rotational movement, the tiles attracted by the permanent magnet 59 of the selector 7 are guided by a guide plate 64 that is fixed and extended to the end of the slope conveyor 8, and are forced to move outside the selector. The tiles are detonated out of the excitation zone and fall onto the slope conveyor 8. The fallen tiles are transported on the compare belt, and their movement is stopped by the stopper 65, which prevents them from moving forward. At this time, the tiles are attracted and transferred by the hanger 66 of the conveyor 9, which is moving in the right angle direction while maintaining a small gap just above the tiles. As shown in FIG. 11, the conveyor 9 is
Bases of hangers 66 are fixed to an ordinary chain with attachments at regular intervals, and permanent magnets 59 such as ferrite are attached to the bottom surface of the base so that the N and S poles are perpendicular to the direction in which the conveyor 9 runs. When the tiles are fixed in the same direction, and are stopped by the stopper 65 of the slope conveyor 8, the tiles are adsorbed when they pass very close to each other, and are suspended in the air. The tiles are transferred in a quadrilateral shape directly above the center line of the tile stand 10.

The tile to be transferred is first prevented from moving by the fixed stopper 67-1 at one end of the tile distribution table 10-1, and is separated from the permanent magnet 59 of the hanger and lands on the tile distribution table 10-1. .
As shown in the cross-sectional view of Figure 12,
Even if the upper surface is a sawtooth inclined surface 10a with a pitch equal to the tile width, there is a stopper 6 at the downstream end of the conveyor 9.
7 extends upward perpendicularly to the sawtooth neck slope.

Only the stopper of the tile distribution table 10-1 is fixed, and the stoppers of the other bottle distribution tables 10-2, 3, and 4 are movable stoppers that move up and down, and usually tiles can be easily suspended above them. It is fixed at a lower layer that can be passed through. The reason why the upper surface of the tile arrangement table is made into a saw-tooth slope 10a is to prevent a fallen tile from shifting laterally or otherwise changing its position due to the impact reaction with the tile arrangement table. To explain the order in which the tiles are arranged and stacked in two stages on the table with reference to FIG.
7, only the tile is prevented from moving by the stopper, and is removed from the hanger 66, and comes to rest on the tile placement table at a position 68-2.

The next suspended tile is also blocked by the stopper and comes to rest on 68-2, that is, at the position 68-3. The next suspended tile is blocked from moving by the tile 68-3 that landed just before, and it lands and stands still at position 68-4. The next position is 68-5, and the next is 68-6.
In this order, repeat from the tip of the tile table to the lower tier and then the upper tier until a predetermined number (usually 3 pieces) is reached. This predetermined number is determined by a photoelectric switch 69-1 provided at a position immediately after passing the movable stopper 67-2 of the tile distribution table 10-2.
The number of tiles passed is read sequentially and sequentially. This value is entered into a separate counter. When the predetermined number of tiles reaches 34, it is detected by a NAND gate IC or the like and immediately inputted as an output signal to the stopper solenoid 70'. The solenoid 70 that receives the electric signal attracts the plunger, and as shown in FIG. The tiles move directly and prevent the conveyor 9 from transferring the passing tiles later.

As a result, as in the case of the tile arranging stand 10-1, the two-stage light alignment work progresses on the tile arranging stand 10-2. The photoelectric switch 69-2 located at the stopper 67-3 position of the tile distribution table 10-3 reads the predetermined number 34 x 2 = Satoshi, and an electric signal is immediately output to the counter via a NAND gate IC, etc. Solenoid 701 was sent,
As before, the movable stopper 67-3 is moved to the upper layer to block subsequent passing tiles, and the work of arranging the two-tiered bonds on the tile placement table 10-3 is started.

In this way, the tiles are sequentially stacked in two stages on the table 10-4.
Then, a predetermined number of optical fin type switches 69-4 located in the opposite direction to the stoppers 67-4 of the tile distribution table 10-4 is 34×4=13.
When the last tile is read, the electrical signal output through the counter IC is sent to the bush type solenoid 72 shown in FIG. The protruding bar of the snap switch 46 is pushed forward to open the power circuits of the chain conveyor motor 47 and the slope conveyor motor 48, and at the same time, the reverse rotation circuit of the half rotation motor 20 is switched to the forward rotation circuit. In this way, all movement stops, and the aligned tiles on the tile placement tables 10 on all sides are in a state of standby, just waiting for their next turn.

When the phase of the competition that is being continued on deck 3 is over, the start switch 14 is pressed again, and from then on, this series of cycles is repeated, and the competition unfolds and progresses one after another. It is something.

Movable stopper 67-2, 3 which is the above-mentioned high rank devil
, 4 are pushed down by a separate protruding part from the pallet 12 that descends at the beginning of the competition, and are hooked by the tip of the stopper solenoid and returned to their original positions.

As explained above, according to the present invention, since the stopper 67 is installed perpendicularly to the sawtooth inclined surface 10a, the two-tiered tiles are aligned in a straight line with their side surfaces parallel to the stopper 67. When a suspended tile bumps into a two-tier stack of tiles and falls, it is guided by the sloping straight side of the two-tier stack of tiles and is reliably guided to a predetermined inclined surface 10a, ensuring that the two-tier stack of tiles falls in a predetermined row. A stack of tiles can be formed. Also, among the stoppers 67, three tile distribution tables 10-2, 10 excluding the tile distribution table 10-1 located at the most downstream position of the conveyor
The stoppers located at -3 and 10-4 are movable stoppers 67-2, 67-3, and 67-4 that can appear and retract freely. Counter 69-1,
Since 69-2 and 69-3 are arranged, when the counter (photoelectric switch) 69 counts the number of oversized tiles at a predetermined speed,
The movable stopper obstructs the path of the traveling tiles that are attracted to the magnet 59 and stops the conveyor 9 from further offering tiles, so the tile distribution table 10 does not need to descend for passing tiles; It is possible to prevent the tiles stacked in two levels from being broken due to the impact caused by the descent of the tile stand 10. Further, the tile distribution table 10 only needs to wait below the conveyor 9 by approximately the thickness of the two stacked tiles, and therefore the pallet 12 only needs to be lowered to the position of the tile distribution table 10, and the pallet 12
The vertical stroke of the machine can be made small, and automatic mahjong tables can be made into four shapes, especially in the thickness direction.

[Brief explanation of the drawing]

Figure 1 is an external perspective view of an automatic mahjong table incorporating the device of the present invention, Figure 2 is a plan view of the internal mechanism, and Figure 3 is Figure 2.
4 is a partially cutaway perspective view of the internal mechanism; FIG. 5 is a partially cutaway perspective view of the opening/closing device; FIG.
Figure 7 is a perspective view of the half-rotation mechanism, Figure 7 is a sectional view of the crank mechanism and push plate device, Figure 8 is a perspective view of the single rotation mechanism, Figure 9 is a perspective view of the selector as seen from below, and Figure 10. 11 is a perspective view of the tiles with a portion cut away, FIG. 11 is a perspective view taken from the bottom of the conveyor, FIG. 12 is a sectional view showing a portion of the stopper and the arrangement order of the tiles, and FIG. 13 is a side view of the conventional example. be. 1... Automatic mahjong table, 9... Conveyor, 10 (10-
1-10-4)...Tile distribution table, 10--...Tile distribution table located at the lowest downstream of the conveyor, 10a...Full slope, 59.
...Magnet, 67...Stopper, 67-2 to 67-4
...Movable stopper, 69-1 to 69-4...Counter (photoelectric switch). Figure 1 Figure 2 Figure 6 Figure 10 Figure 3 Figure 5 Figure 7 Figure 9 Dimensions of the ship Figure 8 Figure 11 Figure 12

Claims (1)

[Claims] 1. Four tile-distributing tables with sawtooth-shaped slopes on the top surface;
And in a two-tiered tile stacking device for an automatic mahjong table equipped with a conveyor that runs above these tile distribution tables and has magnets arranged at predetermined intervals, at the downstream end of the conveyor of these tile distribution stations, Stoppers are installed perpendicularly to the sawtooth inclined surface, and among these stoppers, the stoppers located on three tile distribution stands excluding the tile distribution table located at the most downstream position of the conveyor are configured to be able to appear and retract at will. A counter is provided facing these movable stoppers to count the number of tiles that are attracted to the magnet and run, and when the counter counts a predetermined number of passing tiles, the movable stopper is attracted to the magnet. A device for stacking tiles in two stages in an automatic mahjong table configured to obstruct the path of tiles traveling by being loaded.