JPH0330140Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention relates to the improvement of dummy tiles that are most suitable for automatic mahjong tables that mechanically assemble mahjong tiles.

[Prior Art] Conventionally, in an automatic mahjong table that mechanically assembles mahjong tiles, a mechanism for sequentially picking up mahjong tiles inserted into a hopper includes, for example, a magnet 103 placed above a hopper 101 as shown in FIG. An embedded rotatable hopper ring 105 is disposed, and a guide plate 1 having a mountain-shaped cross section is disposed below.
Rubber turntable 1 that rotates on the top surface of 07
09 are arranged respectively.

For example, Tokugan Showa has such a structure.
There is one described in No. 57-128763 (Japanese Unexamined Patent Publication No. 59-20187).

[Problems to be solved by the invention] In this configuration, the mahjong tiles 111 thrown into the hopper are moved downward along the slope of the turntable 109, and then moved upward by the rotation of the turntable 109. be sent up. The tile 111 sent upward is the magnet 1 of the hopper 105.
03 and sent to the transport start end (not shown) of the assembly mechanism. Thereafter, the tiles on the turntable 109 are sequentially sent upward while being stirred. At this time, the tiles that have slipped on the slope are pushed up by the following tiles, making it possible to send them up without any problem. However, if there are few tiles left and the tiles begin to slide, it will take time to send them up. For this reason, multiple dummy tiles are inserted in addition to the competition tiles. This dummy tile has no iron piece embedded in it, so even if it is sent upward, it will not be attracted by the magnet 103 of the hopper ring 105, and when the last tile slides down, it will be placed behind it to prevent it from sliding off. However, there was a problem in that the dummy tiles themselves sometimes slipped, preventing them from fully functioning as dummy tiles.

Therefore, the purpose of this invention is to provide dummy tiles that are less prone to slipping.

[Means for solving the problem] In order to achieve the above object, in this invention, blind holes are formed on the front and back sides of the main body of the tile, and on each of the four sides on both the left and right sides, and holes with a large coefficient of friction are formed. An elastic body is attached and the upper surface of the elastic body is slightly protruded from each surface.

[Operation] The dummy tile having such a configuration is sent upward with the upper surface of the elastic body in contact with the inclined surface of the turntable.

[Embodiment] Hereinafter, an embodiment of this invention will be described in detail with reference to the drawings of FIGS. 1 to 5.

1 in the figure shows a dummy tile made to the same size as the mahjong tiles. The tile main part 3 of the dummy tile 1 is the front side 5, the back side 7, the left side 9, the right side 11, the top side 13,
It has six lower surfaces 15, and blind holes 17 are formed in each of the front surface 5, the rear surface 7, and the left and right side surfaces 9, 11.

The blind hole 15 is roundly counterbored approximately at the center of each surface 5, 7, 9, 11 and has a depth H of approximately 1.9 mm, and an elastic body 19 is mounted in the hole 17.

The material of the elastic body 19 is Neocell sponge material with a large coefficient of friction.As shown in FIG. It is formed by twisting and punching.

The thickness of the sponge base 21 is approximately 2 mm, and by peeling off the release paper and adhering the adhesive layer 23 to the bottom of the blind hole 17, the upper surface 19a of the elastic body 19 is approximately 0.1 mm on each side 5, It is designed to be more prominent than 7, 9, and 11.

For dummy tile 1 configured in this way,
The upper surface 19a of the elastic body 19 relative to the turntable
Since they are in surface contact, they will not slip off when being fed up an inclined surface. Therefore,
Even if the last tile slips down, the dummy tile 1 prevents it from slipping down and ensures that it is sent up.

Although the elastic bodies 19 are omitted from the upper surface 13 and lower surface 15 of the tile main body 3, it was found in the experiment that each of the four surfaces 5, 7, 9, and 11 always collapses when the tiles are stirred inside the hopper. The result is clear and it functions as a dummy tile without any problems.

[Effects of the invention] As explained above, according to the dummy tiles of this invention, there is no slippage, so even if the last tile slips down, it can be reliably prevented and the tiles can be sent up quickly. As a result, there is no loss in feeding, and the time required for assembly can be shortened.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the dummy tile of this invention, Figure 2 is a partially cutaway surface view of the same, Figure 3 is a side view of the same, Figure 4 is a perspective view of the sponge base, and Figure 5 is the base. 6th cross-sectional view of an elastic body formed by
The figure is a schematic perspective view of a tile picking up mechanism. Explanation of main drawing symbols, 1...Dummy tiles, 3...
...Tile main body, 17...Blind hole, 19...Elastic body, 1
9a...The upper surface of the elastic body, 5, 7, 9, 11... Each surface of the tile.

Claims (1)

[Scope of utility model registration request] Blind holes are formed on each of the four sides of the front, back, and right and left sides of the main body of the tile, and an elastic body with a large coefficient of friction is attached to the hole, and the top surface of the elastic body is made to protrude slightly from each side. Dummy tiles for automatic mahjong tables featuring