JPH0331348Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a tile supply device in an automatic mahjong table.

The tile supply device for an automatic mahjong table, which is the subject of this invention, has iron pieces or magnets buried inside the mahjong tiles used, and a tile washing hopper installed below the table with a diagonal A rotary table that rotates with a rotation axis is provided, and a suction ring equipped with a magnet is attached to the upper opening of the tile washing hopper so that the suction ring wraps with the conveyance section on the periphery of the rotary table in plan view and rotates. Leave it on the shaft,
Mahjong tiles are dropped into the tile washing hopper from the slot of the mahjong table, are washed by a rotating table, and sent to a conveying section around the periphery of the rotating table. The material is sent up to a position close to the bottom surface of the suction ring, is attracted by the magnet provided on the suction ring, is attracted to the bottom surface of the suction ring in a fixed posture, and is then supplied to the alignment section. This is a tile supply device for an automatic mahjong table.

The tile supply device in this form of automatic mahjong table is
A rotary table, which is rotatably supported at the bottom of the tile washing hopper so as to rotate with an oblique axis of rotation, sequentially moves the mahjong tiles placed on the upper surface of the conveying section around its periphery to a position approaching the lower surface of the suction ring. When carrying it up, make sure that it does not slip down the slope.
When the angle of inclination of the rotary table is made gentler, the mahjong tiles that have fallen onto the top surface of the rotary table are carried up to the upward slope side, and from that position are sent to the conveying section on the periphery while falling to the downward slope side, and the mahjong tiles are The operation of turning the mahjong tiles into a prone position was insufficient, and the mahjong tiles were not properly lifted.
If a protrusion is provided on the upper surface of the conveying section on the periphery of the rotary table to push up the mahjong tiles, when the mahjong tiles are brought up to a position close to the lower surface of the suction ring and adsorbed on the lower surface of the suction ring. However, there is a problem in that the adsorbed mahjong tiles tend to fall off from the bottom surface of the suction ring.In addition, in order to solve this problem, if the protrusion is made of an elastic material so that it can be bent freely, it becomes difficult to escape from the mahjong tiles. Another problem arises in that the bending caused by the bending is concentrated at the proximal end and soon results in loss.

The present invention was developed to solve these problems, and the inclination angle of the rotary table is set so that the mahjong tiles carried up on the upward slope side can sufficiently fall down on the downward slope side. While
In order to ensure that the conveyance section on the periphery of the rotary table carries the mahjong tiles to a position close to the bottom surface of the suction ring, a protrusion provided on the conveyance section of the rotary table is carried up and attached to the suction ring. The mahjong tiles adsorbed to the bottom surface of the tile are made of elastic material so as to be flexible so as not to fall off.
The purpose of the present invention is to propose a new means that can effectively prevent the breakout loss caused by the concentration of bending at the proximal end.

To achieve this purpose, the tile supply device for the automatic mahjong table according to the present invention is based on the periphery of a rotary table that is pivoted to rotate with an oblique axis of rotation at the bottom of the tile washing hopper below the mahjong table. A conveyance section is formed in a continuous annular band shape so that the upper surface thereof is along a substantially horizontal plane on the inclined upward side of the rotary table, and the conveyance section is provided with a desired spacing in the rotational direction of the rotary table. Then, a hole is provided that falls downward from the upper surface of the conveying section, and a rod-shaped small protrusion whose upper end projects upward from the upper surface of the conveying section is formed in the bottom of the hole so that it can be bent freely. It is characterized by having been established.

Next, an example of implementation will be described 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 same 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 2 (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 2. A tile alignment device B installed in the machine frame 2 at a position slightly closer to the center from the edge.
A window hole 11 through which a lift 10 that lifts the mahjong tiles arranged in a stacked state on the top surface of the mahjong table 1 appears.
... is provided, and a drop hole 12 is provided in the central portion for dropping mahjong tiles after a game has been completed toward the tile washing hopper 30 of the tile alignment device B below the mahjong table 1. The drop port 12 is closed with a cover plate 13 that can be opened and closed.

As shown in the outline in FIG. 2, the tile alignment device B receives the mahjong tiles dropped from the drop slot 12 into the tile washing hopper 30, and adjusts them in a constant posture while washing the tiles. A tile supply device a that supplies tiles toward the alignment section b, a two-stage sorting and feeding device c that stacks mahjong tiles sent out from the tile supply device a in two layers and sequentially pushes them out to the alignment section b, and an alignment section. b and an extrusion device d for extruding mahjong tiles arranged in a stacked state so as to be transferred to the upper surface of the lift 10 in the lowered position.

The tile supply device a is formed into a cylindrical shape and is attached to the machine frame 2.
At the bottom of the tile washing hopper 30 fixedly supported on the
A rotary table 31 that rotates with an inclined rotation axis Z by an inclined support shaft 20 is provided (a third
In the upper opening of the tile washing hopper 30, a suction ring 32 formed in an annular shape that overlaps the upper surface of the conveying section 31a at the periphery of the rotary table 31 in a plan view is disposed in a horizontal state. Magnets K are arranged and attached to the bottom surface of the suction ring 32 in an annular manner, and the mahjong tiles P have an adsorption piece of iron, a magnet, or a combination of these placed on the top side of the inside of the mahjong tiles P. is buried, and the suction piece inside this mahjong tile P is sucked by the suction ring 32, so that the mahjong tile P assumes a certain posture with the back side facing up.
It is configured to be attracted to the suction ring 32, carried out by the rotation of the suction ring 32, transferred to the starting end 33a of the conveyor 33, and supplied from the terminal end 33b of the conveyor 33 to the alignment section b.

Next, in FIGS. 4 and 5, f is a small protrusion provided on the conveying section 31a at the peripheral edge of the rotary table 31 so as to protrude upward from the upper surface of the conveying section 31a. As shown, the above-mentioned conveying section 31a is formed in a continuous annular band shape on the peripheral edge of the rotary table 31 so as to follow a horizontal surface on the inclined upward side of the rotary table 31. The rotary table 31 is formed into a short rod shape that rises from the middle part in the width direction (radial direction of the rotary table 31) in a direction perpendicular to the upper surface of the conveyance section 31a. They are provided at three equally spaced positions in the direction of rotation. The small protrusion f is made of an elastic material such as rubber or synthetic resin and is formed into a flexible rod shape, and is attached to the rotary table 31 as shown in FIGS. 6 and 7. A hole 40 having a larger diameter than the rod-shaped small protrusion f is made in the conveying portion 31a, and a mounting portion 41 integrally formed with the base end of the rod-shaped small protrusion f is fixed to the bottom of the hole 40 with adhesive. This is installed on the rotary table 31, so that when the mahjong tiles P placed on the upper surface of the conveyance section 31a are pushed up by the small protrusions f, a load is applied to the mahjong tiles P. When this happens, the small protrusion f is elastically bent and bent into the hole 40, and the conveying section 3
It is arranged so that it can be immersed from the top surface of 1a.

Next, FIGS. 8 and 9 show another embodiment of the aforementioned small protrusion f. In this embodiment, the small protrusion f is formed into a hook shape using a metal wire having elasticity, and the aforementioned hole 40 for mounting the small protrusion f is formed on the rotary table 3 as shown in FIG.
A small protrusion f formed in the shape of a hook is formed in the elongated hole 40, and a mounting portion 41 is provided at the lower end of the elongated hole 40. The leg piece 42 is positioned at the front in the rotational direction, and the bent part 43 is inserted into the elongated hole 40 so as to protrude upward, and the mounting part 41 is attached to the lower surface side of the rotary table 31 using the mounting tool 44. It is installed by fastening, and as a result, when a load is applied, the leg piece 42 on the free end side is bent so as to push the leg piece 45 toward the bottom of the hole 40, forming a substantial small protrusion. The bent portion 43 having the shape f is set to be recessed into the hole 40.

In the illustrated embodiment, g is below the rotary table 31, and g is below the rotary table 31.
The magnet is disposed below the inclined descending side of the magnet 1, and is formed into a rod shape, and is configured to have polarity divided into an upper surface side and a lower surface side. The polarity of the magnet g acts on a suction piece embedded inside the mahjong tile P on the top surface of the rotary table 31, so that the mahjong tile P is rolled into a prone position with the front side facing upward. It is set to . Furthermore, the rod-shaped magnet g is placed on the fifth rotary table 31.
Assuming that the rotary table 31 is rotating clockwise as shown by the arrow in the figure, and the side indicated by the symbol W is the upward slope side and the side indicated by Y is the downward side, then the lower side of the downward slope side Y of the rotary table 31 The rotary table 31 is fixed to a mounting base 38 provided on the floor plate 2a of the machine frame 2 so that the upper surface thereof is close to and parallel to the lower surface of the rotary table 31.

In addition, g' is the inclined rising side W of the rotary table 31.
and the inclined downward side Y, the rotary table 31
is another bar-shaped magnet arranged at a lower position on the side where the magnet rotates from the inclined upward side W to the inclined downward side Y,
Like the magnet g, the polarity is set to be divided into an upper surface side and a lower surface side, and the polarity is set so that the mahjong tiles P on the rotary table 31 are placed face down. However, the drive shaft m for driving the rotary table 31 is arranged at the position where the magnet g' described above is disposed, and the magnet is placed on the upper surface of the conduction pulley 34 attached to the drive shaft m.
By fixing g', the drive shaft m is rotated by the motor M, and the transmission pulley 34 and the transmission pulley 3 provided at the boss part of the rotary table 31 are rotated by the motor M.
When driving the rotary table 31 via the transmission belt 36 that is stretched between the drive shaft m
It is designed to rotate around the center. Further, 50 is a motor that drives the suction ring 32, 51 is a drive wheel rotated by the motor 50, 32a is an engagement flange provided on the suction ring 32 so as to engage with the drive shaft 51, and 37 is a motor that drives the motor M. Floor plate 2 of machine frame 2
This is an assembly machine frame for assembling to a.

Next, to explain the operation and effect, the tile supply device in the automatic mahjong table according to the present invention configured as described above is equipped with a rotary table that is pivotally supported to rotate with an oblique rotation axis Z at the bottom of the tile washing hopper 30. 31 carries the mahjong tiles P placed on its upper surface toward a position approaching the lower surface of the suction ring 32.
Small protrusions f installed in holes 40 provided at intervals in the rotational direction of the rotary table 31 on the upper surface of 1a...
However, since the mahjong tiles P are pushed up from the rear in the rotation direction, even if the rotary table 31 is pivoted at a predetermined inclination angle, the mahjong tiles P may not slide back in the rotation direction. It disappears. and,
When the pushed-up mahjong tile P is attracted to the lower surface of the suction ring 32 and the resistance becomes large, these small protrusions f bend and escape from the mahjong tile P, and the mahjong tiles adsorbed on the suction ring 32 are This works to prevent the mahjong tiles P from falling off, but the small projection f escapes from the mahjong tile P due to the bending of the small projection f at the hole 40.
It stands upright from the bottom of the mahjong tile P, and the portion that contacts the mahjong tiles P is limited to the upper end that protrudes from the opening of the hole 40 above the upper surface of the conveying section 31a. This prevents the entire small protrusion f from bending from the base end, and effectively prevents the bending from concentrating on the base end and causing breakage. It becomes preventable.

[Brief explanation of the drawing]

FIG. 1 is a plan view of an automatic mahjong table that can implement the present invention, FIG. 2 is a schematic plan view of the tile alignment device described above, and FIG. 3 is a side sectional view schematically showing the tile alignment device described above.
FIG. 4 is a vertical sectional side view of the main part of the same as above, FIG. 5 is a plan view of the main part of the same as above, FIG. The figure is a longitudinal sectional view of another embodiment of the same upper part, and FIG. 9 is a perspective view of the same upper part. Explanation of drawing symbols, A... automatic mahjong table, B... tile alignment device, a... tile supply device, b... alignment section, c... two-stage sorting device, d... extrusion device, 1... mahjong table, 10... lift, 11... Window hole, 12... Drop opening, 13... Lid plate, 2
...Machine frame, 2a...Floor plate, 20...Spindle, M...Motor, m...Drive shaft, P...Mahjong tiles, g, g'...Magnet, K
...Magnet, Z...Rotation axis, 30...Tile washing hopper, 3
DESCRIPTION OF SYMBOLS 1... Rotary table, 31a... Conveyance part, 32... Suction ring, 32a... Engagement collar part, 33... Conveyor, 3
3a...Starting end, 33b...Terminal end, 34, 35...Conduction pulley, 36...Conduction belt, 37...Assembling machine frame, 38...Mounting base, f...Small protrusion, 40...Hole, 41
... Attachment part, 42... Leg piece, 43... Bent part, 44... Mounting tool, 45... Leg piece, 50... Motor, 51... Drive wheel.

Claims (1)

[Scope of utility model registration request] At the periphery of a rotary table that is rotatably supported with an oblique axis of rotation at the bottom of a tile-washing hopper below the mahjong table, the upper surface of the rotary table is arranged along a substantially horizontal plane on the inclined upward side. A conveying section is formed in a continuous annular band shape, and holes are provided in the conveying section at desired intervals in the rotational direction of the rotary table, dropping downward from the top surface of the conveying section, and the bottom of the hole is A tile supply device for an automatic mahjong table, characterized in that a rod-shaped small protrusion whose upper end protrudes upward from the upper surface of the conveyance section is formed and installed in a flexible manner from an elastic material.