JPH02249575A - Dice with built-in magnet and dice specified pip casting device - Google Patents

Abstract

PURPOSE:To reliably display a specified pip when dice are cast by a method wherein a magnet rotatably mounted between the opposing faces of a dice case is charged on a board body where an external magnetic field is generated, and the magnet is controlled so that is rotated in a specified angle arc by means of torque generated by the external magnetic field. CONSTITUTION:Side plates 3 and 4 are secured on a pair of the inner surfaces, positioned facing each other, of a dice case 2. A rotary shaft 5 is rotatably supported to the side plates 3 and 4. A disk-shaped magnetic 6 is secured to the center in the longitudinal direction of the rotary shaft 5, and an angle control plate 7 is secured in parallel to the rotary shaft 5 between the side plates 3 and 4. Regulation is made by the angle control plate 7 so that the rotation angle of the magnet 6 is adjusted to a value within a specified angle. Meanwhile, a coil 10 to generate an external magnetic field H in a direction extending at right angles with a dice rolling surface 9 of a board body 8 is wound around the outer periphery of the board body 8. In the external magnetic field H, an N-pole is generated in an upward direction and an S-pole is generated in a downward direction. When the dice 1 is cast on the dice rolling surface 9, through a relative action between magnetic field strength H and the magnet 6 in the die 1, a specified pip is displayed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application in Industry-I] The present invention relates to a die with a built-in magnet that is used in a dice game machine and always displays a designated number when the die is rolled on a board.

[Conventional technology]

Conventionally, when a game is played by determining points based on one or more numbers thrown out onto the field, there has been a problem in that the probability of a predetermined number or combination thereof appearing is small, which reduces the interest in the game. In order to solve this problem, the applicant proposed an automatic gaming machine using dice in 'f9W'' Uc No. 62-251392. Prepare 6 types of dice with the numbers 1 to 6, sort and store these dice in a dice storage, select a die from this dice storage, drop it on the board, and set it to each die. This dice selection is performed by ejecting the corresponding dice from the dice storage according to a command from a computer in which the order of dice combinations is stored in advance.

At this time, a coil is wound around the outer circumference of the disk, and an external magnetic field is formed in a direction perpendicular to the disk, and the interaction between this external magnetic field and the magnet installed inside the die causes the die to move. The specified number will always be displayed on the top.

[Problem to be solved by the invention]

However, according to conventional dies with built-in magnets, the magnet is fixed close to one side of the die case, so
Due to the relationship between the weight of the die and the l-J reflex due to magnetism, even if the designated roll is "1", the roll formed on the opposite side will be "1".
6'', that is, there was a problem that there was a probability of displaying the opposite result.6 The present invention was made in view of the above circumstances, and it is possible to reliably display the specified result when the dice are rolled. We are committed to providing dice with built-in magnets that can
L-target.

[Means to solve the problem]

In order to achieve the object described in item 1, the magnet-embedded die of the present invention includes a magnet rotatably mounted between opposing surfaces of a die case via a rotating shaft, and a regulating means for regulating the rotation angle of the magnet. It is used in a dice game machine in which an external magnetic field is formed and the dice are inserted into the dice board 1- to play the game, and a magnet is installed inside the dice case to determine the number of rolls. A die with a built-in magnet, wherein the magnet is rotatably mounted between opposing surfaces of the die case via a rotating shaft, and the magnet is fixed between the opposing surfaces of the die case with a rotation angle of 0. The invention is characterized by being equipped with a regulatory means for regulating.

Further, the dice designated number appearance device of the present invention has a built-in magnet that is equipped with a magnet rotatably mounted between opposing surfaces of a die case via a rotating shaft, and a regulating means that regulates the rotation angle of the magnet. The dice are placed on a board in which an external magnetic field is formed, and the magnet is controlled to rotate at a certain angle by the torque generated by the external magnetic field, thereby causing a predetermined number of the dice to appear. It is something to do.

[Effect]

According to the above configuration, when the dice are placed on the board with a reversed number, the magnet rotates to the rotation angle regulated by the regulating means. At this time, if the rotational torque by the magnet is made larger than the rotational torque due to the die's own weight, the die rotates around the edge and shifts to a side-cut state. If the torque generated by the magnet at this time is greater than the torque due to the die's own weight, and the angle formed between the magnet and the regulating means is smaller than 45 degrees, the die further shifts from the horizontal stitch 11 state to the specified stitch posture. That is, even if the dice on the board are in a reverse or sideways rolled state, the dice always rotate to display the designated roll, thereby improving the reliability of the designated roll.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a die with a built-in magnet according to the present invention will be described below with reference to the drawings.

An embodiment of the present invention is shown in FIGS. 1 to 31'A.

The die case 2 forming the die 1 is formed into a regular cube, and a pair of opposing inner surfaces are provided with side plates 3 and 4, respectively.
is fixed. Rotating shaft support holes 3a and H4a are formed at opposing positions in these side plates 3 and 4, respectively, and the rotating shaft 5 is rotated in a direction perpendicular to the side plates 3 and 4 through these holes 3a and 4a. is rotatably supported. Further, a disc-shaped magnet 6 is fixed at the longitudinal center of the rotating shaft 5, and an angle control plate 7 is fixed parallel to the rotating shaft 5 between the side plates 3 and 4. And this angle control board 7
The rotation angle of the magnet 6 is regulated to be within a certain angle.

Next, the operation of this embodiment will be explained with reference to FIGS. 4 to 8. In FIG. 4, a coil 10 for generating an external magnetic field H in a direction perpendicular to the die rolling surface 9 of the disk 8 is wound around the outer periphery of the disk 8. This external magnetic field H has an upward N pole and a downward S pole, and when the die 1 is thrown onto the die rolling surface 9 and rolled, the magnetic difference strength F (and the Due to the interaction with the magnet 6, a designated roll "]" is displayed, for example.

FIG. 5 shows the state of the external magnetic field B (and the magnet 6) when the die 1 is in a specified rolled state on the die rolling surface 9.

It is assumed that the external magnetic field I- (is generated in the direction of the arrow) and interacts with the magnet 6 almost uniformly (approximately 1.0 to 1.3 within the die rolling surface 9 with the center as 1).

The amount of magnetism on the N pole face of magnet 6 is mN (w > ), N
Let the magnetic quantity of the pole surface be m. The height of magnet 6 is n (m)
, the inclination angle with respect to the horizontal is 0. M degree. Hereinafter, all units are based on MKSm.

The N-pole force FNIN+ is downward, the S-pole force 1-'', (
9) occurs in the - direction.

The torque T M (N-m) generated by the magnet 6 is expressed by the following equation.

'Ding M=:+ F) IX Q X S I
N ELM =----(2
) In Fig. 5, the magnet 6 has an inclination angle θ with the rotating shaft 5 as the fulcrum.
, acts in the direction of = 0° and becomes stable 6 In that state, the magnet C
The torque due to the moon J is 17u=O, and the die 1 is stabilized because its self @W t Ny at the center of gravity acts on the entrance surface.

Figure 6 shows the dice], is the external magnetic field when the number is reversed, field 11
and shows the state of the magnet 6. It is assumed that the coefficient of rotational friction between the rotating shaft 5 and the bearing portions of the side plates 3 and 4 is small. The probability that the magnet 6 will be held in the water 1]1 state with the rotating shaft 5 as the fulcrum due to its own weight is very small, and the magnet 6 will not be able to resist the external magnetic field I-11).
The force Fs, Fs shown in (2) is generated and the torque ゛r
M also acts and tilts in either direction. The magnet 6 is tilted until it touches the angle control plate 7. If the angle of inclination is 06 degrees, the torque rI at that point is expressed by the following equation clockwise from (2).

TM= FNX Q X S I N OB-”'
(3) The torque TDe (N-m) of the die 1 is expressed by the following equation in a counterclockwise direction.

11tlc=W x RX COS 45 ・
==・(4) Here, R is the distance from the center of gravity of the die 1 to the edge, and the angle formed by the line connecting the center of gravity and the edge with the rolling surface 9 is 45 degrees.

If T and T'l)c satisfy the following relational expression, the die 1 will rotate clockwise as shown in FIG.

Ti1l > ITDCI...
... (5) In Fig. 7, the inclination angle of die 1 is fee
At this time, the torque TM (OC) due to the magnet 6 and the torque TDc (Oc) due to the dead weight of the die 1 are expressed by the following equation.

T, 1(Oc)=FNXQXSIN(θ8+θC)--
-----(6)TI)c(Oc)=WXR,XC05(
Oc+45)=-(7) If the inclination angle θC is between 0 and 90 degrees and the following formula is satisfied, the die] shifts to the side-eye state shown in FIG.

'ry(Oc)l > 1TDc(Oc)l −
・---(8) In Fig. 8, the inclination angle of die 1 is 0
At 6 degrees, the torque T&1 (OC) due to the magnet 6 and the torque TDC (OC) due to the weight of the die 1 are expressed by the following equation.

'r M(Oc, >= F, x u X S I N(
90-OB-OC)・----(9)TDc(Oc)
=W X RX COS (Oc+45) -・
...(10) Inclination angle θ. If the following equation is satisfied between O and 90-θ degrees, the die 1 shifts to the specified number state shown in FIG.

If the above-mentioned conditions are satisfied, within the external magnetic field H, the die 1 shifts to the specified position via the horizontal position if it is in the reverse position. If it is in a sideways roll state, it shifts to the designated roll posture and always displays the designated roll.

Next, experimental results according to this example will be explained.

The dimensions of die case 2 of die 1 are 25 x to-' on each side.
It is a cube of m. The center of gravity is on the medium heat of die 1, R valve 1
．． 77×10-”rn.

The total mass of die 1 is w = 7.2 x l 0-3k
It is g.

The height ff of the magnet 6 is 5×10 −3 m.

The magnetic quantity of magnet 6 is 2.57X1O-! 'wb, the magnetic moment is 1.28 x 10-7 wh-m.

The control inclination angle θ3 of the magnet 6 with respect to the angle control plate 7 is 32 degrees. External magnetic field H=1.35X10'A T/m
It is.

Table 1 below shows the total torque r (10-'N-m) of the die 1 based on the above-mentioned values.

'ro (finger), To (reverse) and To (horizontal) are shown in Fig. 5 when the magnet 6 is parallel to the angle control plate 7 and the rotating shaft 5 is fixed to the side plate 3.4, that is, θ3=O°. Figures 6 and 8
This is the torque when the die 1 is tilted by 06 at the rotation action axis point 0 according to the figure.

Ta2 (finger) tilts the die 1 at an inclination angle θ in FIG. This is the torque when increasing .

At O<Oo<32, the magnet 6 is in a horizontal state.

θ. ≧32, the magnet 6 contacts the angle control plate 7 and transmits torque to the die case 2.

Ta2 (reverse) follows FIGS. 6 and 7.

The magnet 6 is in contact with the angle control plate 7 from beginning to end.

Ta2 (horizontal) is the torque when the die 1 is tilted and the tilt angle 0 (,) is increased in FIG.

Ooku θ. <At 58°, the magnet 6 is in contact with the angle control plate 7,
Transmits torque to die case 2.

58 degrees θ. ≦90', the magnet 6 is in a horizontal state,
The torque depends only on the weight of the die 1.

The characteristics in Table 1 are shown in FIG. 9[1m] and FIG.

The numerical values in Table 1 are positive and clockwise 1.
Negative means counterclockwise rotation. The values in parentheses are when the magnet is in contact with the angle control plate 7 from beginning to end.

In other words, the numerical value in parentheses indicates that if the magnet 6 is in contact with the angle control plate 7 from beginning to end, it will be tilted and balanced by θC of 3.7° (point Y in FIG. 10) in FIG. 5. A rotating shaft 5 is provided to keep the magnet 6 free in a certain area.

The negative value in the To (reverse) column, that is, the 6th value in the 2nd area of Figure 9.
In the state shown in the figure, if the magnet 6 is fixed parallel to the angle control plate 7 from beginning to end, the die 1 is stable in the reversed state.

That is, if the magnet 6 is fixed within the die with an inclination angle θ3=0°, it is possible to have an inverted number display in principle.

According to this embodiment, the magnet 6, the rotating shaft 5, and the angle control plate 7
By providing a sub-rotation of the magnet 6 by a fixed angle, in this embodiment, θB-32 degrees, by interaction with the external magnetic field H, it is possible to eliminate the display of reversed numbers. Therefore, if you make several dice 1 with numbers 1 to 6 marked at the designated number positions, select the dice 1 with the number you want to display, and throw it onto the dice rolling surface 9 as shown in Figure 4, then roll it. The desired number of dice can always be displayed.

〔Effect of the invention〕

As explained above, according to the present invention, since the magnet built into the die is made rotatable within a predetermined rotation angle, it is possible to prevent the appearance of a sideways side of the dice and always display the designated number. This has the effect of increasing the reliability of dice display.

[Brief explanation of drawings]

FIG. 1, FIG. 2, and FIG. 3 are a partially sectional front view, a side view, and a side view, respectively, showing an embodiment of a die with a built-in magnet according to the present invention.
4 is a perspective view showing the state of use, FIGS. 5 to 8 are side views showing the operation of this embodiment, and FIGS. 9 and 10 are based on the experimental results of this embodiment. It is a graph showing the relationship between die inclination angle and torque. 1...Dice, 2...Dice case, 5...
Rotating shaft, 6... Magnet, 7... Rotation angle regulating means (angle control plate), 8... Board.

Claims (1)

[Claims] 1. A built-in magnet characterized by comprising a magnet rotatably mounted between opposing surfaces of a die case via a rotating shaft, and a regulating means for regulating the rotation angle of the magnet. dice. 2. A die with a built-in magnet used in a dice game machine for playing a game by inserting it onto a board in which an external magnetic field is formed, and in which a magnet is installed in a die case to determine the number of rolls; The present invention is characterized by comprising: the magnet rotatably mounted between opposing surfaces of the case via a rotating shaft; and regulating means fixed between the opposing surfaces of the die case and regulating the rotation angle of the magnet. Dice with built-in magnet. 3. A die with a built-in magnet, which is equipped with a magnet rotatably mounted between opposing surfaces of a die case via a rotating shaft, and a regulating means for regulating the rotation angle of the magnet, is placed in a disk body in which an external magnetic field is formed. 1. A dice specified number appearance device, characterized in that the specified number of the dice is made to appear by inserting the magnet into the top and controlling the rotation of the magnet at a constant angle by a torque generated by the external magnetic field.