JPH0428620Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention converts a first state that is disadvantageous to the player and a second state that is profitable to the player using an electric drive source. This invention relates to a variable winning device for a pachinko machine, which has a movable member and a special winning hole and a normal winning hole in which the winning values for balls guided by the movable member and won are different from each other.

(Prior art) Generally, this type of variable prize winning device (for example,
58-112571), the most important concern for players and pachinko parlors is the probability of winning a prize in the special winning slot or the regular winning slot.

In other words, if a batted ball wins a prize in the special prize opening,
The pachinko game has become a special prize mode, and under this special prize mode, the movable member performs opening and closing operations a predetermined number of times, and if a ball hits the special prize opening again during one cycle, the special prize will be played in the next cycle. In a pachinko machine that is configured to update the prize mode, the probability of winning a prize in the special prize opening becomes a problem.

In general, if the winning probability is too high, the pachinko parlor will incur a large loss, so it will have no choice but to reduce the number of winnings in the special winning slot, and if too many enter into the special winning slot, The maximum number of updates that have been set ends early, and the number of balls that come out is not so great, resulting in poor customer traffic.

On the other hand, if the probability of winning a prize in the special prize opening is too low, the movable member will enter the second state during the game and will be difficult to enter the special prize mode even if it accepts a batted ball, and even if the movable member enters the special prize opening, it will not be possible to update the special prize in the next cycle. Since it is difficult to continue the winning pattern, the number of balls that are thrown does not increase, and the game becomes boring for the player.

In the conventional variable winning device, the probability that a winning ball entering the variable winning device enters the special winning hole depends exclusively on the partitioning state of the special winning hole and the normal winning hole, that is, the spatial distribution interval within the lower receiving frame. It was determined by the settings.

(Problem to be Solved) The variable winning device described above uses injection molding of synthetic resin material to create appropriate spatial distribution intervals, and in order to keep the probability of winning balls guided to the special winning hole within a desired tolerance value, it is necessary for the pachinko machine to Even when looking at just one model, it would take a considerable amount of time and repeated trial production to actually fire the gun and calculate the effective value.

Moreover, the final winning probability is influenced by other related parts and changes relatively slightly, so the winning probability after assembly varies from pachinko machine to pachinko machine even if they are of the same model. It is unavoidable that it will occur.

For this reason, setting winning probabilities that are acceptable to both players and pachinko parlors is of considerable interest.

In conventional variable winning machines, the probability of winning a prize in the special winning slot is determined only by the partition structure of the special winning slot and the regular winning slot, and since the setting is extremely delicate, the result is In this case, the winning probability of the special prize opening, that is, the probability that the special prize mode will be updated and the special prize mode will continue, tends to be lower than the 1/10 probability that is legally regulated for this type of pachinko machine.
It has become relatively difficult for the special award system to continue.

The present invention was made with the aim of solving this problem.

(Means for solving the problem) The first state is disadvantageous to the player due to the electric drive source 87, and the second state is profitable to the player.
A variable winning device 10 for a pachinko machine has a movable member 11 that can be converted into a state and a special winning hole 19 and a normal winning hole 18, each of which has a different winning value for a ball guided by the movable member 11 and won. A window section 21 is provided in the substrate 20, and the movable member 11 is provided on the left and right front sides of the window section 21 so as to be movable back and forth, and the lower front section of the window section 21 has side walls 61A on the left and right sides. The lower receiving frame 61 has a U-shaped lower receiving frame 61 which is opened, and the lower receiving frame 61 has a special winning opening 19 located in the center and regular winning openings 1 on both sides of the special winning opening 19.
Upright walls 63 and 64 are provided to partition the space within the lower receiving frame 61 so that the number 8 is located, and the front end of the lower receiving frame 61 covers the front end of the special winning opening 19 and the normal winning opening 18. A lower front plate 60 is formed, and the movable member 1 is provided on the inner surface of the lower receiving frame 61.
A variable winning device for a pachinko machine, characterized in that guide walls 60B and 62 are provided erected within the lower receiving frame 61 to induce winning balls guided by the ball into the special winning opening 19. .

(Function) Since the guide walls 60B and 62 that stand up in the lower receiving frame space are provided on the inner surface of the side wall of the lower receiving frame 61,
A ball that would have entered the normal winning hole 18 may bounce off the guiding walls 60B, 62 and end up winning the special winning hole 19, resulting in irregularity and diversity in the chances of winning the special winning hole 19. given and increased.

(Example) Hereinafter, the variable prize winning device of the present invention will be explained based on the illustrated example.

In FIGS. 1 and 2, reference numeral 20 in the drawings is a board of the variable prize winning device 10. A vertically elongated window 21 is bored in the substrate 20, and a concave chamber 35 extending to the rear of the substrate 20 is formed in the window 21.

A movable bearing part 25 and a movable bearing part 26 are provided on both sides of the window part 21 in the middle of the front surface of the board 20, and the upper movable bearing part 25 has a movable member 1.
The auxiliary movable shaft 14 of the auxiliary movable member 12 is rotatably supported by the lower movable bearing portion 26.

In the concave chamber 35, a diversion shelf branching member 40 having a diversion shelf 42 is disposed, and on the front side of the concave chamber 35, the left and right movable bearing portions 25, movable bearing portions 26 and the concave portion are disposed on the front side of the concave chamber 35. The middle front plate 30 is disposed so as to cover the diverting shelf 42 in the chamber 35.

Furthermore, in the upper part of the board 20, behind the upper front plate 24, there is a top prize opening 16 and a side prize opening 17.
However, in the lower front part of the board 20, behind the lower front plate 60, there are provided a special winning hole 19 and two normal winning holes 18 adjacent to the left and right sides of the special winning hole 19. Therefore, special winning opening 19 and regular winning opening 1
The front end of 8 is covered by this lower front plate 60.

In FIG. 2, a branch head 31 is formed at the center of the back side of the middle front plate 30 as a component of a diverting shelf branching means for distributing winning balls to the left and right.

The branch head 31 is connected to a branch 41 of a branch shelf branch member 40 provided in the recessed chamber 35 .

The branch head 31 is made to protrude from the diverter shelf 42,
A batted ball that has won a prize in the variable winning device 10 is made to hit this, and the batted ball is prevented from flying out of the device.

The branch head 31 as a whole is formed into a box shape that is open to the rear, and a number of rights display 43 consisting of a 7-segment LED display is housed inside so that it can be visually recognized by the player. There is.

In addition, the symbol 32 in the figure indicates this right number display section 43.
This is a transparent display window for visually displaying the information to the player.

In the middle front plate 30, the support protrusions 34 provided on the inner surface of both ends thereof are screwed into the mounting holes 27 of the board 20, and the left and right movable bearing parts 25,
Movable bearing part 26, movable bearing part 25, movable bearing part 2
6, covering them.

A half-cylindrical half 28 provided on the substrate 20 so as to surround the support protrusion 34 from the outside functions as a positioning guide member for the support protrusion 34 and also as a mating stopper portion for the movable member 11.

Concave chamber In FIGS. 2 and 3, the concave chamber 35 is the substrate 2.
0, a peripheral wall 36 is provided to surround the window 21, and a rear surface member 70 (FIG. 1) is provided to cover the rear surface 37 of the peripheral wall 36. The inner peripheral lower surface 36B of the peripheral wall 36 is inclined so as to face the space distribution means in a forward-inclined posture.

A lower edge 38 remains on the rear surface 37 of the peripheral wall 36. A notch 38A is provided at the center of the lower edge 38 for leading out a lead wire (not shown) of the right number display 43 housed in the branch head 31.

From the lower side of this lower edge 38 to the lower side 21A of the window portion 21
Partition walls 39 are erected on both sides of the inclined inner circumferential lower surface 36B that extends up to the inner peripheral surface 36B.

Between the partition walls 39 on both sides and the lower edge 38 of the rear surface 37, the winning ball diverting port 3 is located on the inner peripheral lower surface 36B.
9A is open.

In other words, each partition wall 39, 39 and the lower edge 38 of the rear surface 37 constitute a diversion gutter for the diversion port 39A, and the partition wall 39 also functions as a hidden portion of the diversion port 39A.

Referring again to FIGS. 1 and 2, the distribution shelf branch member 40 disposed approximately in the center of the recessed chamber 35 divides the inside of the recessed chamber 35 into an "upper partial flow space" and a "lower distribution space". It is divided into two spaces.

The diverter shelf branching member 40 includes a central branching portion 41 that is connected to the branching portion head 31 that protrudes from the window portion 21 of the base plate 20 and extends rearward in the recessed chamber 35, and a central branching portion 41 on both sides thereof. It has a flow dividing shelf 42 which extends laterally and whose upper surface is inclined to be lower toward the inner left rear of the recessed chamber.

A small protrusion 44 is provided at the tip of the branching part 41 for positionally regulating the right number display 43 housed in the branching part head 31 from the rear.

The flow divider shelf branching member 40 connects flat flow divider shelves 42B (FIG. 2) provided at both ends of the flow divider shelf 42 to grooves 36C provided from the starting end of the window portion 21 on the side surface of the peripheral wall 36 of the recessed chamber 35. (Fig. 3) It can be installed by simply inserting it into the inside.

By dividing the inside of the concave chamber 35 into an upper part flow space and a lower distribution space, and distributing winning balls to the left and right branching ports 39A in the upper part flow space, the normal winning hole 18 and It is possible to reduce the concentration of a large number of winning balls in the special winning opening 19 and the diversion opening 39A, and it is possible to avoid clogging of balls and the like.

Special Winning Port, Normal Winning Port In FIGS. 2 and 3, in the lower front part of the board 20, there is a U that surrounds the lower side edge of the window 21 of the board 20.
A letter-shaped lower receiving frame 61 is provided.

The lower receiving frame 61 includes a U-shaped base 61B located below the lower side 21A of the window portion 21, and a base 61B located below the lower side 21A of the window portion 21.
1, and has a side wall portion 61A extending upward from 1, and the upper surface side is open.

The U-shaped base 61B and the side wall portion 61A do not stand at the same height with respect to the substrate 20, but the side wall portion 61A has a notch that allows the side wall portion 61B
It's a little lower than that.

This is so that the plate-shaped main portion 12A of the auxiliary movable member 12, which is another movable member, can be rotated without being hindered by the lower receiving frame 61.

(a) Space distribution means Two upright walls 63, 63 are erected on the bottom surface of the U-shaped base 61B.

Adjustment pieces 64 are superimposed and bonded to the upper ends of each of the upright walls 63, 63, and the space distribution means consisting of the upright walls 63, 63 and the adjustment piece 64 allows the space within the lower receiving frame 61 to be adjusted. The space is divided into a special winning hole 19 occupying the center and two normal winning holes 18, 18 adjacent to the left and right sides of the special winning hole 19.

The normal winning hole 18 is literally a winning hole that ejects a predetermined number of prize balls that are normally ejected for each winning ball, but the special winning hole 19 is, for example, a predetermined number of prize balls that are normally ejected. This is a winning hole that discharges more prize balls than the number of prize balls, or temporarily makes a prize mode with an extremely high winning probability appear, and has a higher winning value than a normal winning hole.

The surface of the base 61B and the upstanding walls 63, 6 described above
3 is covered with a lower front plate 60.
Further, at the bottom of the base 61B, there is provided an inclined guide portion 61C for quickly and reliably discharging the winning balls that have entered the normal winning hole 18, the normal winning hole 18, and the special winning hole 19.

In this embodiment, the reason why the adjustment piece 64 is not integrally formed from the beginning at the stage of molding the board 20 is that the adjustment of the winning probability for the normal winning holes 18, 18 and the special winning hole 19 is extremely delicate. Since it is,
This is to enable easy adjustment later on without wasting the mold for the substrate 20.

For this purpose, the height of the upright walls 63, 63 is
It is formed in advance to be lower by the thickness of the adjustment piece 64, and when the adjustment piece 64 is superimposed on the upright walls 63, 63, it reaches a predetermined height, in this example, so that it touches the lower side 21A of the window. It is determined.

In addition, the gap D between the adjustment side 64 and the inner surface of the side wall of the U-shaped base 61B, that is, the size of the normal winning opening 18, is set to about twice the diameter of the ball, as shown in FIG. This prevents balls from clogging in the normal prize opening 18.

(b) Guiding Walls Guiding walls 62 are erected on the inner surfaces of both side walls of the lower receiving frame 61 to induce winning into the special winning opening 19.

This is to compensate for the subtle errors in the entered prize probability and to bring the winning probability to the special winning hole 19 closer to the continuation rate of 1/10.

In the embodiment, as can be clearly seen from FIG. 4, the U-shaped base 61B is made thicker than the side wall portion 61A, and the step is directed to the boundary between the base 61B and the side wall portion 61A, and the step serves as a guiding wall. 62 is forming.

With this configuration, the lower receiving frame 61
Winning balls that fall near the side wall of the holder do not always enter the winning hole 18, but some of them bounce off the guiding wall 62 and fall into the lower receiving frame 61 as shown by the arrow in FIG. It will head towards the center. As a result, the falling direction of the batted balls received by the movable member 11 is given variety and surprise, and some of them win into the special winning hole 19.

Therefore, this special winning hole 19 is closed by the guiding wall 62.
The probability of winning a prize in the special prize opening 19 increases by the amount that winning is induced, compared to the case without this guide wall 62, and the continuation rate can be easily approached to 1/10.

Further, such irregular movement of the winning balls increases the interest of the pachinko game for players.

In this embodiment, the guide wall 62 is integrally provided when the lower support frame 61 is molded, but like the adjustment side 64, it may be attached as a separate member with adhesive.

In FIG. 5, in this embodiment, a guide wall 60B is further formed on the back surface of the lower front plate 60 as a supplementary means for finely adjusting the winning probability.

Like the adjustment side 64, this guide wall 60B is also a separate member that is later superimposed and bonded. However, this guide wall 60B can also be integrally provided by forming it as a small protrusion from the beginning when molding the lower front plate 60.

In any case, by combining the space distribution means with the guide walls 62 erected on the inner surfaces of both side walls of the lower receiving frame 61 and the guide wall 60B provided on the lower front plate 60, it is possible to access the special prize opening 19. It becomes easy to bring the probability of winning a prize close to a desired value, and it is possible to add surprise and diversity to the prize winning mode of the ball hit into the special winning hole 19.

In addition, the adjustment piece 64, the guide wall 62, and the guide wall 60
When configuring B to be glued separately, prepare several types with different wall thicknesses, protrusion amounts d (Figs. 3 and 5), or angle of inclination θ (Fig. 4). By selecting and using the one most suitable for the model of the pachinko machine in question, it is possible to significantly reduce the manufacturing cost of the variable prize winning device and, by extension, the pachinko machine.

The two normal winning holes 18, 18 and the one special winning hole 19 communicate with a winning ball guiding path that passes through an opening provided on the back side of the board 20 to the back side of the game board.

Drive mechanism for movable members Next, the movable member 11 and the auxiliary movable member 12 as another movable member are placed in a first state that is disadvantageous to the player, that is, a closed state that makes it difficult to win a prize by hitting a ball. A mechanism for converting the opening/closing (reciprocating) operation to the second state, which is beneficial to the player, ie, the open state where it is easy to win a prize by hitting a ball, will be explained.

In Fig. 1, the main movable shaft 13 and the auxiliary movable shaft 1
4 protrudes rearward from the movable bearing part 25 and the movable bearing part 26 to which they belong, respectively, and a main movable member lever 45 and an auxiliary movable member lever are provided with pins 48 and 49 protruding from the rear surface of the rear end of the protrusion. 46 is fixed.

A rear-opening transparent case 70 is attached to the rear surface 37 of the recessed chamber 35 as a rear surface member.
A background carrier 73 made of an endless film wound around two rolls is built into the transparent case 70, and one of the rolls is rotationally driven by a motor 76 via a gear.

The background carrier 7 is rotationally driven by a motor 76.
3 moves, a background drawn in advance on the back surface of the concave chamber 35 according to the game content is moved and displayed.

A metal drive source mounting plate 80 is attached to the rear surface of the transparent case 70 via a support plate 78.
Two electromagnetic solenoids 87 and 8 are installed on the back side of the drive source mounting plate 80 as electric drive sources that move the pair of left and right movable members 11 and 11 independently on the left and right sides.
7 is carried.

Plate-shaped operating levers 90, 90 for converting the movable member 11 and the auxiliary movable member 12 are fixed to the lower ends of the plunger shafts (not shown) of the electromagnetic solenoids 87, 87, respectively. , each operating lever 90, 90 has a return spring 8
4 and 84, respectively, are pulled downward.

Furthermore, each of these operating levers 90, 90 has
Two engagement holes 93 and 94 are provided respectively, and pins 48 and 49 of the movable member lever are loosely inserted into the engagement holes 93 and 94, respectively.

When the electromagnetic solenoid 87 is energized and the plunger is attracted, the operating lever 90 is pulled upward against the return spring 84, and the engagement of the engagement holes 93, 94 with the pins 48, 49 causes the main movable axis 13,
The auxiliary movable shaft 14 rotates, the movable member 11 reciprocates from the closed state (first state) to the open state (second state) in FIG. 1, and the auxiliary movable member 12 moves freely.

Flow path for winning balls When the movable members 11, 11 are completely opened,
The movable members 11, 11 divide the space on the front side of the recessed chamber 35 into two at approximately the same height as the boundary line between the upper flow space and the lower distribution space of the recessed chamber 35, and the normal winning opening 18 , 18, and the winning passage to the special winning opening 19 are completely closed.

Under this fully open state, the ball that has entered the prize along the guide portion 11A of the movable member 11 hits the branch head 31 and loses its momentum, and all of the ball enters the upper flow space in the concave chamber 35. be guided.

As already mentioned, the winning balls that have entered the upper stream space are sorted from left to right by the top surface 41A of the branching section 41, flow down along the upper surface of the stream divider shelf 42, and enter the stream divider gutter. (the partition wall 39) and fall into the winning ball collection gutter (not shown) on the back of the game board.

Therefore, these winning balls are not guided to the special winning hole 19.

On the other hand, to win a prize in the special prize opening 19, the movable member 1
This happens when 1 and 11 are about to close or open.

In the process of moving the movable members 11, 11 from the fully open state to the closed state, as the movable members 11, 11 try to close, the inner end of the stopper portion 11D of the movable member 11 and the branch head 31 The gap between them gradually expands.

Therefore, if a ball is placed on the guide portion 11A or the stopper portion 11D, the movable member 11,
11, the ball moves to the stopper part 1.
Passing through between the inner end of 1D and the branch head 31,
Regular prize opening 18, 18 or special prize opening 19
fall to.

However, the winning process is not simple.

When it hits the guide wall 62 of the lower receiving frame 61 and rebounds to the center and enters the special prize opening 19, or when it hits the guide wall 60B of the lower front plate 60, the recessed chamber 35
There is a possibility that the prize money may bounce onto the inner circumferential lower surface 36B in the lower distribution space, flow down on this inner circumferential lower surface 36B, and enter the special prize opening 19.

The winning probability in the special winning hole 19 is changed depending on the presence or absence of the above-mentioned adjustment piece 64, guide wall 69B, and guide wall 62.

(Effects of the invention) As described above, in the variable prize winning device of the present invention, a guide wall that stands up in the lower receiving frame space is provided on the inner surface of the lower receiving frame, so that the winning device cannot be accepted by the movable member. The ball that was supposed to enter the normal prize opening may collide with this guidance wall and bounce back, changing the falling direction and ending up in the special prize opening.
The chances of winning a prize in the special prize opening will increase.

Therefore, when determining the probability of winning a prize in a special prize opening only by the partition structure of the special prize opening or regular prize opening as in the past, although the structure is delicate, it is necessary to provide such a guide wall. This adds variety and surprise to the prize-winning manner of the ball hit into the special prize-winning hole, which can provide interest to the player.

As a result, the probability of winning a prize in a specific prize opening, that is, the probability that the special prize mode will be updated and continued, will be stabilized to 1/10, which is the probability that is legally predetermined for this type of pachinko machine. Not only is this easier, but it can also bring about randomness in the winnings of balls that hit this special winning hole.

In addition, since the ball that enters the variable prize winning device by the movable member of the present invention jumps in a direction that the player does not expect, the irregularity of the movement of the ball increases the interest of the pachinko game and makes it special. It will give you even more joy when you enter the winning slot and win a prize.

[Brief explanation of the drawing]

Figure 1 is a perspective view showing the outline of the entire variable prize winning device, Figure 2 is an exploded perspective view of the front side of the board of the variable winning device, and Figure 3 is a variable prize winning device with front components removed. A front view of the circuit board of the device, FIG. 4 is a partially enlarged view of the lower support frame showing the relationship between the guide wall of the lower support frame and the ball, and FIG. 5 is a partial enlarged view of the lower support frame showing the relationship between the guide wall of the lower front plate and the ball. FIG. 10... Variable winning device, 11... Movable member, 1
2... Auxiliary movable member (movable member), 18... Normal winning opening, 19... Special winning opening, 20... Board, 2
1...Window section, 21A...Lower side, 24...Upper front plate, 30...Middle front plate, 35...Concave chamber, 36...Peripheral surface (concave chamber), 37...Rear surface (concave chamber), 36B...Inner peripheral lower surface (concave chamber), 39...Dividing wall (diversion gutter), 40...Diversion shelf branching member, 41...
... Branch part, 42 ... Diversion shelf, 60 ... Lower front plate, 60B ... Guidance wall, 61 ... Lower receiving frame, 6
1A...Side wall portion, 61B...U-shaped base, 6
1C... Inclined guide section, 62... Guide wall, 63...
Standing wall, 64...adjustment piece, 87...electromagnetic solenoid (electric drive source).

Claims (1)

[Claims for Utility Model Registration] A movable member that can be converted into a first state that is disadvantageous to the player and a second state that is advantageous to the player by an electric drive source, and a guide to the movable member In a variable winning device for a pachinko machine that has a special winning hole and a regular winning hole, each of which has a different winning value for balls that have been won, a window is provided on the board, and the above-mentioned movable holes are provided on the left and right front sides of the window. In addition to providing the member so as to be able to reciprocate, a U-shaped lower receiving frame with left and right side walls and an open top is provided at the lower front part of the window, and the lower receiving frame has a special prize opening located in the center. In addition, an upright wall is provided to divide the space within the lower receiving frame so that the normal winning opening is located on both sides of the special winning opening, and on the front of the lower receiving frame, there is a front end of the special winning opening and the normal winning opening. A guiding wall is formed on the inner surface of the lower receiving frame and stands up in the lower receiving frame to induce winning balls guided by the movable member to enter the special winning opening. A variable winning device for a pachinko machine, characterized by being provided with.