JPH0261276B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides an automatic mahjong table in which a tile alignment device installed at the bottom of the mahjong table raises tiles arranged in a laid-up state on the top surface of the mahjong table as a laid-out state. The present invention relates to an improvement in an extrusion device for extruding aligned tiles so as to transfer them to the upper surface of a lift.

In an automatic mahjong table, the mahjong tiles in the stacked state that have been pushed out by the alignment tile extrusion device and transferred to the top surface of the lift are brought into a state where the top surface of the lift is aligned with the top surface of the mahjong table by the lifting operation of the lift. As a result, the tiles appear to be placed on the top of the mahjong table. For this reason, on both sides of the hoistway of the lift that moves up and down, the mahjong tiles placed on the top surface of the lift are kept in that state and raised by the lift. It is desirable to provide a guide wall. However, the guide walls provided on both sides of the lift hoistway are easy to install on the side located in front of the extrusion device in the extrusion direction, but they are easy to install on the side located in front of the extrusion device in the extrusion direction. On the side, since it is located across the path of the mahjong tiles being extruded by the extrusion plate of the extrusion device, it requires a special mechanism and is not easy to install.

The present invention has been made in order to solve this problem, and is an automatic mahjong system in which the tiles placed on the top surface of the lift are pushed up to the top surface of the mahjong table in an orderly manner without the need to install a special guide wall. The object of the present invention is to provide a device for pushing out aligned tiles at a table.

In order to achieve this object, the device for pushing out arranged tiles in an automatic mahjong table according to the present invention includes a lift installed in a position adjacent to the arranging section of the tile arranging device and parallel to the arranging section so as to be able to move up and down. An extrusion plate is disposed at the opposite position for extruding mahjong tiles arranged in a tiled state in the alignment part onto the upper surface of the lift,
The lift is supported on a machine frame so as to freely move forward and backward toward the upper surface of the lift, and an actuation mechanism for reciprocating the extrusion plate with respect to the upper surface of the lift is linked to the extrusion plate, and the operation mechanism includes the extrusion plate. A temporary stop stroke is incorporated between the forward stroke of advancing toward the lift and the return stroke of retreating from the lift, in which the extrusion plate is temporarily stopped at a position slightly retreated from the pushed-out position. The present invention is characterized in that the duration of the temporary stop stroke is set to synchronize with the upward movement of the lift.

Next, the present invention will be explained in detail with reference to the drawings.

FIG. 1 is a top view of an automatic mahjong table A in which the present invention can be implemented, and in the figure, reference numeral 1 indicates a mahjong table formed in the shape of a square plate. The mahjong table 1 is supported on the top surface of a machine frame 1a (FIG. 2) formed in the shape of a square box in the form of a lid plate that closes the opening on the top side of the machine frame 1a. A lift 10 that lifts the mahjong tiles, which have been arranged in a tiled state using the tile alignment device B installed in the machine frame 1a, onto the top surface of the mahjong table 1, is disposed at a position slightly closer to the center of the machine frame 1a. A window hole 11 is provided in the center, and a drop hole 1 is provided in the center for dropping mahjong tiles after a game into the tile alignment device B below the mahjong table 1.
2 is provided, and its drop opening 12 is closed with a lid plate 13 that can be opened and closed.

The tile alignment device B includes a hopper a that receives the mahjong tiles dropped from the drop slot 12, and a hopper a that washes the tiles received in the hopper a and supplies them to the alignment section b while maintaining a constant posture. and an extrusion device d that pushes out the mahjong tiles arranged in the alignment section b in a tiled state so as to transfer them to the upper surface of the lift 10 in the lowered position.

The supply section c is provided with a rotary table 21 that rotates with an inclined rotational axis Z by an inclined support shaft 20 at the bottom of the hopper a, and a rotary table 21 that rotates with an inclined axis of rotation Z by an inclined support shaft 20. A suction ring 22 that attracts the mahjong tiles P to the lower surface by acting on an iron piece or a magnet embedded in the mahjong tiles is pivoted to rotate along a horizontal surface, and the lower surface of the suction ring 22 is attached to the upper surface of the rotary table 21. A conveyor 23 is provided on the side away from the mahjong tiles P which takes over the mahjong tiles P carried out by the suction ring 22 and carries them out towards the above-mentioned alignment section b.
Furthermore, a two-tier aligner 24 is provided outside the terminal end 23a of the conveyor 23, which stacks the mahjong tiles sent out from the terminal end 23a in two tiers; Although it is configured by providing a feeder 25 that feeds the mahjong tiles toward the alignment part b,
It may be configured as appropriate.

Moreover, as shown in FIG. 2, the alignment part b is arranged to form a cleavage at one location around the four lifts 10 described above, which are arranged so as to constitute a quadrilateral enclosure frame in a plan view. A portion of a certain annular rail 30 along the outside of each lift 10...
The rails 30 are formed so as to be parallel to and adjacent to each other, and have a portion of the rail 30 adjacent to each of the lifts 10, but the arrangement of the alignment portions b... may be arbitrary.

In addition, the annular rail 30 constituting the alignment part b... has a groove 31 extending in the longitudinal direction formed in the middle part in the width direction thereof.
On the bottom side of 0, there is a chain 3 that rotates endlessly.
2 is stretched over the machine frame 1a so as to overlap the annular rail 30 vertically, and the chain 32
An extrusion pin 33 whose upper end protrudes toward the upper surface side of the rail 30 through the groove 31 is attached to the chain 32.
Three aligners are installed at intervals longer than the length of the lift 10 in the rotating direction of the two-stage aligner 2.
4 and the feeder 25, the number of mahjong tiles sent from the free end 30a of the annular rail 30 facing the terminal end 23a of the conveyor 23 to the first-ranked alignment section b is determined to be a predetermined number of tiles. When this state is reached, the chain 32 rotates, and the push-out pin 33 sequentially sends the mahjong tiles aligned in the first alignment section b to the next alignment section b. The number of mahjong tiles lined up in the first alignment part b is counted by a photo sensor type counter provided separately, and controlled by controlling the motor that drives the chain 32 using the counter.

The extrusion device d moves the mahjong tiles arranged in the arranged state in the alignment section b to the lift 1 in the lowered state position.
As shown in FIG. 2, this is an extrusion device for extruding so as to transfer the material onto the upper surface of a container.As shown in FIG. 2, it is installed at four locations corresponding to the four lifts 10.

Each extrusion device d includes a extrusion plate 4 that extrudes the mahjong tiles aligned in the alignment part b toward the upper surface of the lift 10, and a reciprocating motion that reciprocates the extrusion plate 4 to advance and retreat from the upper surface of the lift 10. It consists of mechanism w. Then, the extrusion plate 4 is the fourth one in plan view.
As shown in the figure, the length is approximately the same as the length of the lift 10 that is adjacent to and parallel to the alignment part b, and when viewed from the side, there are two stages in the alignment part b, as shown in FIG. It is formed into a plate shape that is higher and lower than the stacked height of the mahjong tiles P and P that are stacked in a stack, and as shown in FIG. A mounting is disposed at a position opposite to the lift 10 parallel to the direction b, is integrally continuous with the push-out plate 4, and extends from the lower end of the push-out plate 4 to the side opposite to the lift 10. A guide rod 42 is provided with a plate 40, a shaft-cylindrical slider 41 is provided on the lower surface of the plate, and the slider 41 is supported on a supporting machine frame 5 fixedly attached to the machine frame 1a.
42, it is supported on the machine frame 1a so that it can move forward and backward with respect to the lift 10. Further, as shown in FIG. 2, the reciprocating mechanism w for reciprocating the extrusion plate 4 is attached to the support frame 5, which is disposed outside the alignment section b, as shown in FIG. As shown, a rotating shaft 60 along the longitudinal direction of the alignment part b is pivotally supported, and an output shaft 61 of a motor M is connected to one end of the rotating shaft 60, and the rotating shaft 60 is connected to the motor M.
At the same time, a control disc 62 with a notch on the periphery is attached to the other end of the rotating shaft 60 so that the periphery of the control disc 62 faces the photo sensor S, and the motor M is By controlling the photo sensor S, the rotating shaft 60 is made to rotate once and then stop.
0, as shown in FIG.
is attached, and a roller 66 provided at the intermediate portion of a reciprocating rod 65 that is supported on the support frame 5 by a support shaft 64 so that the rotating end side moves forward and backward with respect to the lift 10 is brought into contact with the circumferential surface of the cam wheel 63. The rotating end of the reciprocating rod 65 is connected to the engagement piece 43 provided on the extrusion plate 4 described above, and the extrusion plate 4 is retracted from the lift 10 between the extrusion plate 4 and the support frame 5. By providing a spring 68 that pulls back in the pointing direction, the extrusion plate 4 is lifted across the upper surface of the alignment part b by the operation of the reciprocating rod 65 that moves back and forth once by the cam wheel 63 that rotates once due to the operation of the motor M. The cam surface formed on the circumferential surface of the cam wheel 63 is shown in FIG. 5. As shown in FIG.
Working portion 63b that is slightly reduced in diameter and continues long in the circumferential direction
is formed so that the reciprocating rod 65 is held at a position slightly retreated from the most advanced position for a time corresponding to the circumferential length of the acting portion 63b. After this state is passed, the acting portion 63c following the acting portion 63b is activated.
As a result, a backward stroke of moving backward relative to the lift 10 is performed.

y is an elevating mechanism for elevating and lowering the aforementioned lift 10, and two transmission shafts 72, one shaft end of which is connected to a rotary shaft 60 which is pivotally supported in the support frame 5 via transmission gears 70, 71, respectively. , 72 are respectively pivotally supported on the support frame 5 with their other shaft ends facing below the lift 10, and a crank wheel 73 is attached to each other shaft end and a crank pin 74 is attached thereto. (Fig. 6), and this crank pin 74 is made to abut against the lower edge of the actuating plate 10b that is vertically installed on the lower surface of the shelf board 10a of the lift 10. The lift 10 is guided by a guide shaft 10c provided at both ends of the shelf board 10a and a guide cylinder 10d fitted thereto to perform a lifting operation.

The relationship between the vertical movement of the lift 10 and the reciprocating movement of the extrusion plate 4 by the reciprocating mechanism w of the extrusion device d described above is as shown in the timing chart of FIG. Most of the upward stroke of the lift 10 is performed while the lift 10 is held at a position slightly retreated from the most advanced state by the action portion 63b set on the peripheral surface.

In the illustrated embodiment, 10e indicates a return spring 8 provided between the lift 10 and the supporting machine frame 5.
0 is a guide wall provided to surround the hoistway of the lift 10, and is an alignment part b of the hoistway of the lift 10.
It is set so that the sides are bent open.

Next, the operation will be explained. The aligned tile extrusion device in the automatic mahjong table according to the present invention configured as above pushes the mahjong tiles aligned in the tile building state in the alignment part b toward the top surface of the lift 10. When the push-out plate 4 finishes the forward stroke of pushing out the mahjong tiles on the upper surface of the alignment part b to the upper surface of the lift 10 and performs the backward stroke of returning to the front of the alignment part b again, the forward stroke is completed. The lift 10 will be stopped for a certain period of time at a position slightly retreated from the original position, and during this time the lift 10 will rise and lift the mahjong tiles onto the top surface of the mahjong table 1. It functions as a guide wall that prevents the mahjong tiles from collapsing as they are raised, and keeps the mahjong tiles in an orderly manner.
You will be able to raise it to the top of the screen.

Therefore, the guide wall, which requires a complicated mechanism to avoid interference with the extrusion plate 4 of the extrusion device d, can be substantially omitted, and the mahjong tiles can be raised in an orderly manner by the lift.

Therefore, according to the present invention, since the extrusion device has a temporary stop step in which the extrusion plate is stopped at a position slightly retreated from the extruded position, the extrusion plate can be stopped at a position slightly retreated from the extrusion position. To provide a device for pushing out arranged tiles in an automatic mahjong table, which can push up the tiles to be placed onto the top surface of the mahjong table in an orderly manner.

[Brief explanation of the drawing]

FIG. 1 is a schematic plan view of an automatic mahjong table that can implement the present invention, FIG. 2 is a schematic plan view of the same tile alignment device,
Figure 3 is a schematic vertical side view of the above tile alignment device;
The figure is a plan view of the same extrusion device as above, FIG. 5 is a vertical cross-sectional side view of the same extrusion device as above, FIG. 6 is a vertical cross-sectional side view of the same extrusion device with some parts omitted, and FIG. A partially cutaway front view of the operating mechanism,
FIG. 8 is an explanatory diagram of the operation of the lifting/lowering mechanism section, and FIG. 9 is an explanatory diagram showing the timing of the lifting/lowering operation of the lift and the reciprocating operation of the pushing plate. Explanation of drawing symbols, A...Automatic mahjong table, B...Tile alignment device, M...Motor, P...Mahjong tiles, S...
...Photo sensor, Z... Rotation axis, a... Hopper, b... Aligning section, c... Supply section, d... Extrusion device, w... Reciprocating mechanism, y... Lifting operation mechanism, 1
...Mahjong table, 1a...Machine frame, 10...Lift, 1
0a... Shelf board, 10b... Operating plate, 10c... Guide shaft, 10d... Guide tube, 10e... Return spring, 11... Window hole, 12... Drop opening, 13... Lid plate, 20... ...Spindle, 21...Rotary table, 22
...Adsorption ring, 23...Conveyor, 23a...
Terminal part, 24... Two-stage alignment machine, 25... Infeed device,
30...Rail, 30a...Free end, 31...Groove,
32... Chain, 33... Push-out pin, 4... Push-out plate, 40... Mounting plate, 41... Slider, 42...
...Guide rod, 43...Engagement piece, 5...Support machine frame,
60...Rotating shaft, 61...Output shaft, 62...Control disk, 63...Cam wheel, 63a, 63b, 6
3c... Acting part, 64... Support shaft, 65... Reciprocating rod, 66... Roller, 68... Spring, 70, 71...
...Transmission gear, 72...Transmission shaft, 73...Crank wheel, 74...Crank pin, 80...Guide wall.

Claims (1)

[Claims] 1. At a position adjacent to the arranging part of the tile arranging device and on the opposite side of a lift that is installed in parallel with the arranging part so as to be able to rise and fall freely, the mahjong tiles arranged in the tiled state in the arranging part are placed on the lift. An extrusion plate for extruding is arranged on the upper surface and supported on the machine frame so as to freely move forward and backward toward the upper surface of the lift, and an actuation mechanism is provided on the extrusion plate for reciprocating the extrusion plate with respect to the upper surface of the lift. The operating mechanism includes a state in which the extrusion plate is slightly retreated from the extruded position between a forward stroke in which the extrusion plate is advanced toward the lift and a return stroke in which it is retreated from the lift. 1. A device for extruding aligned tiles in an automatic mahjong table, characterized in that a pause stroke for temporarily stopping the tiles at a certain position is incorporated, and the time of the pause stroke is set to synchronize with the upward movement of the lift.