Hand-stacking Mahjong Tool Hemp Square
A central display system for mahjong tools addresses counting and remembering issues by clearly displaying game progression and tile placement, improving player focus and reducing errors.
Patent Information
- Application Number
- JP2025001901U
- Authority / Receiving Office
- JP · JP
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2025-05-12
- Publication Date
- 2025-12-22
- Estimated Expiration
- 2035-05-12
AI Technical Summary
Existing mahjong tools require players to manually count and remember various game elements, leading to errors and distractions, and lack clear visual displays for game progression and tile placement.
A central display system featuring a starting player mark, wind indicator disk, and roulette for tile placement, combined with a numerical display for game progression and elimination of 100-point sticks, ensuring all information is clearly visible and reducing manual counting.
Players can focus on essential game strategies by eliminating errors and distractions, with all game information prominently displayed, enhancing gameplay efficiency.
Smart Images

Figure 0003254078000001_ABST
Abstract
Description
[Technical Field]
[0001] This invention relates to a tool with a function to support hand stacking mahjong. [Background technology]
[0002] Hand-stacked mahjong kits included a starting player mark and dice, which were used to indicate who was the starting player or dealer, and were used to count the number of turns, the dealer's wind, the position of the dealt tiles, etc. Also, if the dealer won consecutive games, a 100-point stick was placed on the edge of the table to mark the starting position, and a reach stick was also placed there in the event of a draw. [Prior art documents]
[0003] Although not a document, Taiyo Giken Co., Ltd. has released the Amos Compass, which solves part of the problem (displaying wind at each station). https: / / amos-taiyo.com / product / compass / Summary of the Invention [Problem to be solved by the invention]
[0004] The above display method relies on each player counting and memorizing, and is prone to errors such as the number of rounds, their own wind, incorrectly taking out the dealt tiles, or accidentally collecting the 100-point bar displayed in the main hand. By clearly displaying the numbers and letters, we hope to prevent mistakes and create an environment where players can focus their resources on playing. [Means for solving the problem]
[0005] The starting player's mark is usually placed at the edge of the table, but since it is easily out of the player's sight, it is placed in the center of the table.
[0006] The starting mark is used as the base, and a disk showing each player's wind is placed on top of it, which rotates as the game progresses. This displays the current player's wind in letters.
[0007] By combining the originator mark with the wind indicator disk, the number of the game is displayed next to the originator mark, making the game progression clear, from early to middle to final number.
[0008] The 100-point bar counting consecutive games has been abolished and replaced with a disc that displays numbers. The starting player's mark, the number of games, and the home game are displayed in that order, and situations such as "East 2nd game, 1st home game" are always displayed in a fixed position on the tool.
[0009] The position where the tiles are dealt is determined by counting the total of the two dice according to the seating order. One way to do this is to use a regular 12-sided die with a display such as 2 to the right or 3 to the left, but creating a three-dimensional object specifically for this would be costly, and the probability of the outcome would be different from that of two dice. Since there are 6 x 6 = 36 possible outcomes, it is easier to use a roulette.
[0010] The graph below shows the probability of the dice numbers appearing. This makes it possible to intentionally roll a specific number, so the most common number, 56789, was divided (Figure 2 below) and the order in which they were taken was adjusted to create Figure 3 below, which became the roulette. A deposit reach stick was also placed in the center. TIFF0003254078000002.tif70165 [Effects of the Invention]
[0011] By implementing the above features, only exposed tiles are placed on the edge of the table. All other information is concentrated in the center of the table and clearly displayed with letters and numbers. There is no longer any need to count or remember the starting player's mark, the dice placement, the 100-point sticks and deposit sticks there, etc. By directing these resources toward the essential elements of the game, such as arranging the hand, reading discarded tiles, and making decisions about whether to play or not, players can play at a higher level. [Brief explanation of the drawings]
[0012] [Figure 1] These are the main parts that make up the tool. Drill a hole in the center of each part and secure it with a split pin. [Figure 2] 1 is a diagram illustrating an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION
[0013] Below, we will explain the numbers from
[0013] to
[0015] in Figure 1. A is attached to the bottom of B. By pressing down on the southeast part, the top and bottom are swapped, and the current wind is displayed and switched.
[0014] The dealer operates the white knob on C, and the number of consecutive wins is displayed from the cutout on the upper D. Normally, C is sandwiched between D and its positioning magnet and does not wobble, but when D is rotated during the game, it is released from the clamp and becomes free, so it does not rotate together and the count is reset.
[0015] D displays each player's wind for each round, and also counts the round by showing the numbers next to the starting player's mark. The dealer, East, uses the ▲ above to decide the outcome of the roulette. [Example]
[0016] Items that were previously placed at the edge of the table, such as the starting player's mark, dice, home, and deposit stick, are now concentrated in the center, and each item is displayed with letters and numbers, eliminating the need to count or remember. The total points added when a player wins (in this case, the winning points plus 3,000 points for the reach stick + 300 points for the home) can also be seen at a glance. (See Figure 2)
Claims
1. It functions as a starting player's mark, and by placing it in the center, it is more visible than similar products that were previously placed at the edge of the table.
2. By turning the wind display wheel, players can check their own wind for each round without counting. Also, the number of rounds is displayed along with the base player's mark, making the progress of the round clear.
3. The home number for consecutive wins is displayed in the center, and the deposit reach stick placement area has also been moved to the center. Compared to the previous method where 100-point sticks were counted on the edge of the table and deposit sticks were placed alongside them, this method is easier to see and makes it easier to grasp the total points added when a win is made. There is no longer a need to put out the 100-point sticks on the table that are not used for exchanging points when a win is made, which helps prevent problems.
4. Previously, the position where the tiles were dealt was counted by adding up the numbers on two dice, but this has been changed to a roulette that displays the position where the tiles were taken, making the game faster and preventing problems.
5. This system provides the above functions without requiring the player to do any extra work to display them. The starting mark can be changed by flicking with a finger, and the number of rounds changes automatically by rotating the wind wheel. The real wheel becomes free when the wind wheel is rotated as the round progresses, and is automatically reset. It is a support tool, and is constructed with as few parts as possible, using thin, light, and flexible materials so that it does not get in the way of play when shuffling tiles, and also takes portability into consideration (it can be packed in a mahjong tile storage case).