JP2005152239A - Game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pachinko game machine excellent in a game property in which the expectations of a winning are increased. <P>SOLUTION: The pachinko game machine 1 is provided with a center accessory 8 on a position at the board surface center of its game board 4, and the center accessory 8 is operated by the entries to start winning ports 12 and 13. The entry becomes possible for the center accessory 8 during the operation, and when a game ball which enters there passes through a V zone inside the center accessory 8, a special game state is attained. Thus, in the pachinko game machine 1, by enlarging the center accessory 8 on the board surface, the expectations of the winning to the center accessory 8 are increased further. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a gaming machine including a variable winning device that can change a winning probability by a movable body.

  As a conventional technique related to this type of gaming machine, there is a pachinko gaming machine in which a variable winning device is disposed at a substantially central position of the gaming area (see, for example, Patent Document 1). The variable winning device is provided with a pair of left and right movable bodies (airplane wing-like movable pieces), and these movable bodies are operated by winning a game ball at another starting prize opening, and the variable winning device is only for a certain period of time. Will be open. And if the game ball won in the meantime further passes through the specific area in the variable prize-winning device, it shifts to the special game state as a trigger.

  Each of the movable bodies described above can rotate around a support shaft, and these two support shafts are connected to a single solenoid on the back side of the game board. The solenoid and each support shaft are connected via a link mechanism, and when the solenoid is energized in response to a winning at the start winning opening, the link mechanism operates to rotate each support shaft by a certain angle. At this time, the pair of left and right movable bodies change to a state in which a winning opening (a winning opening to the variable winning device) is opened (see FIG. 5 of Patent Document 1).

  A ball receiving surface is formed at the position on the upper surface side of the movable body, and the game balls flowing down the board surface are received by the ball receiving surface and guided to the winning opening, so it is possible to win a variable winning device during this time (There is a probability of winning a prize). In this state, the pair of movable bodies expands so as to protrude on both sides of the variable winning device, and the maximum of the movable objects that can be won in the variable winning device within the game area is inside the two ends. A range, that is, an opening width is defined.

  When a certain period of time elapses thereafter, the energization to the solenoid is stopped, the link mechanism is actuated again, and the respective support shafts are rotated in the opposite directions. As a result, the pair of left and right movable bodies return to a state where the winning opening is closed, and in this state, there is no possibility of winning the variable winning device (no winning probability).

  In addition to the above, in the so-called electric tulip-type variable winning device, when the pair of left and right movable bodies are in an expanded state, the opening width is widened to the left and right, making it easier to win a prize (high probability of winning). When the movable body is in a constricted state, the opening width is narrowed, so that it is relatively difficult to win a prize (small winning probability).

In any case, in a gaming machine equipped with a variable winning device, when the movable body is actuated to widen the opening width, the player can play a game with a stronger expectation of winning than before. it is conceivable that.
JP 62-194881 A (page 2-3, FIG. 5)

  However, since the conventional variable prize winning device simply opens and closes the movable body, even if there are many occasions when the movable body is opened and closed during the game, it is visually monotonous. It is only repeated, and there is still a problem that appeal to the player is weak and uninteresting.

  Accordingly, an object of the present invention is to provide a gaming machine that can greatly increase the expectation of winning a prize by the operation of a movable body.

(Solution 1)
The gaming machine of the present invention solves the above problems by making the movement of the movable body visually recognizable. For this reason, the gaming machine of the present invention has a movable body that is operated when a predetermined operating condition is established, and a variable winning device that can change a winning probability to a winning opening according to the operating state of the movable body. And an operating mechanism for rotating the movable body around a predetermined rotation center to open and close the winning opening.

  Since the above-mentioned movable body is rotated by the operating mechanism, the visual effect given to the player is increased by setting the operation at this time large, and the expectation for winning can be enhanced.

(Solution 2)
As a more specific configuration, the gaming machine of the present invention has a movable body that is operated when a predetermined operating condition is satisfied, and the winning probability to the winning opening can be changed according to the operating state of the movable body. A variable winning device and an actuating mechanism for rotating the movable body around a predetermined rotation center and displacing between a predetermined first posture and a second posture with respect to the winning opening. In the gaming machine of the present invention, a ball receiving surface is formed at a position on the upper surface side in a state where the movable body is displaced to the second posture. It is possible to guide towards.

  In the movable body, the range defined as the ball receiving surface is expanded in the process of displacement from the first posture to the second posture, while the length from the rotation center to the end of the ball receiving surface is Is unchanged.

  Usually, the player visually determines the size of the movable body to determine whether or not it is easy to win a prize. However, the movable body is in the first posture and the second posture as viewed from the player. The size of the range defined as the ball receiving surface differs from that of the state. Specifically, the range defined as the ball receiving surface in the second posture is greatly expanded compared to the state in the first posture. ing. For this reason, when the movable body is displaced from the first posture to the second posture, the player has an illusion that it has become easier to win than expected, and the player can play a game with a stronger expectation.

  On the other hand, the operating range of the movable body is mechanically adjusted by the operating mechanism, and even when the range defined as the ball receiving surface is extended as described above during the rotating operation of the movable body, The length to the end of the ball receiving surface is always constant (invariable). Therefore, in the present invention, the player's illusion is increased as if the maximum range (opening width) in which the variable winning device can be won is expanded, but the opening width does not actually change. Since there is no such thing, the gambling ability of the gaming machine will not become excessively high.

(Solution 3)
The gaming machine of the present invention can have an independent configuration. That is, the gaming machine of the present invention has a movable body that is activated when a predetermined operating condition is established, and a variable winning device that can change a winning probability to a winning opening according to the operating state of the movable body, An operating mechanism that is connected to the movable body and that displaces the movable body in a rotational direction between a predetermined first posture and a second posture by applying power around a predetermined drive shaft. A ball receiving surface is formed at a position on the upper surface side in a state of being displaced in two postures, and it is possible to receive a game ball on this ball receiving surface and guide it toward a winning opening.

  In addition, the gaming machine of the present invention has, as another configuration, a part of a movable body, a first blade-like member that is supported by a drive shaft and rotated by an operating mechanism, and the first blade-like member. A second wing-shaped member that constitutes a movable body together with the wing-shaped member and whose base end portion is rotatably supported at a position different from the first wing-shaped member, the first wing-shaped member, and the second wing-shaped member The first blade is connected to the blade-shaped member and the second blade-shaped member is rotated together with the first blade-shaped member as the first blade-shaped member is rotated by the operating mechanism. When the first and second blade-like members are both displaced as the movable body to the second posture by sliding relative to the longitudinal member in the longitudinal direction, the range defined as the ball receiving surface is the first. With a link mechanism that expands compared to when in one position There.

  When the gaming machine has the above-described configuration, the movable body is configured by at least two members, that is, first and second blade-shaped members, which are connected to each other by a link mechanism. These first and second blade-like members are both rotated in the same direction with the base end as the center, but the center positions of the rotation operations are different between the first blade-like member and the second blade-like member. ing. For this reason, when the two blade-shaped members are rotated together, these trajectories do not draw concentric circles, and a shift occurs in the longitudinal direction in accordance with the shift amount (eccentric amount) of the center position. The link mechanism allows the displacement at this time, and functions to expand the above-described ball receiving surface by sliding the second blade-shaped member relative to the first blade-shaped member.

  On the other hand, since the center position of the rotation operation of each of the two blade-shaped members is always constant, the length from the rotation center to the tip of each blade-shaped member is not changed. Therefore, even if the ball receiving surface is visually expanded from the viewpoint of the player, the length of the individual wing-like members is not expanded, and as a result, the variable winning device can be connected within the game area. The range (opening width) in which a winning can be made is always constant. For this reason, even if the appealing power to the player is enhanced by the visual effect at the time of operation of the variable winning device, the gambling ability of the gaming machine is not excessively increased structurally.

(Solution 4)
In the above solution 3, when the link mechanism rotates until both the first and second blade-like members are displaced to the second posture as the movable body, the second blade-like member with respect to the first blade-like member is provided. It is preferable that the relative movement of the first and second blade-shaped members is stopped by restricting the relative sliding of the first and second blades. In this case, it is not necessary to separately provide a means (for example, a stopper) for restricting the operation when the movable body is displaced to the second posture, and a structurally simple and rational aspect can be realized.

(Solution 5)
In the above solutions 2 to 4, it is preferable that the variable winning device has a pair of movable bodies on the left and right sides, and the pair of movable bodies are displaced symmetrically on both sides of the variable winning device.

  In this case, when the pair of left and right movable bodies are displaced to the second posture on both sides of the variable winning device, the two movable bodies are expanded to the left and right, and inside the variable winning device by the ball receiving surface. The range (opening width) in which a prize can be won is defined.

  At this time, since the ball receiving surface is expanded by the displacement of the movable body, it is visually recognized by the player as if it is a game machine having a wide opening width and easy to win, so that the expectation of winning a prize is increased accordingly. Can be increased.

  The gaming machine of the present invention can greatly enhance the expectation for winning a prize by the visual effect of the expansion of the ball receiving surface, and can provide more interesting game contents.

Hereinafter, an embodiment in which the present invention is applied to a pachinko machine will be described along the following items with reference to the corresponding drawings.
1. Basic configuration of the gaming machine (Figure 1)
2. Variable winning device (Figure 2)
2-1. Movable body 2-2. Ball receiving surface 2-3. First blade-like member, second blade-like member (FIG. 3)
3. Actuation mechanism (Fig. 3)
4). Link mechanism (Fig. 4)
5). Example of operation (Fig. 5)
6). Reference to other embodiments.

(1. Basic configuration of gaming machine)
FIG. 1 shows a pachinko machine 1 according to an embodiment. As is well known, the pachinko machine 1 is roughly divided into a frame body 2 and a game board 4, and the game board 4 is detachably attached to the frame body 2. The game board 4 is formed with a substantially circular game area on the front side facing the player, and the game played by the pachinko machine 1 is a variety of game balls launched toward this game area. Progress while exercising. The launched game ball flows down along the board surface, and in the process, it is guided to a large number of guide nails (not shown), the windmill 6 and the like, and various movement changes are given.

  In the game area, a center winning feature 8 that has a particularly large eye-catching position is arranged at a substantially central position, and a general winning opening 10, start winning openings 12, 13 and the like are arranged around the center. When a game ball is won at these winning openings 10, 12, and 13, a predetermined number of winning balls are paid out. Particularly when the winning winning openings 12 and 13 are won, the center accessory 8 is triggered a predetermined number of times (for example, once). (Or twice).

  The center accessory 8 has a pair of left and right movable bodies 14. During operation, the center accessory 8 expands the left and right movable bodies 14 in the left-right direction as shown in the figure, Can be constricted as it was.

(2. Variable winning device)
Next, the center accessory 8 which is an example of a variable winning device will be described in detail.
FIG. 2 shows the center accessory 8 and its surrounding parts (some of them are omitted) in more detail in the game area. As shown by a solid line in FIG. 2, the center accessory 8 can receive a game ball with the movable body 14 expanded in the left-right direction, that is, can win a prize. Although not clearly shown in FIG. 2, a winning opening (or a winning hole) is formed in the center accessory 8 corresponding to the left and right movable bodies 14, respectively, and is indicated by a two-dot chain line in FIG. 2. As shown in the figure, when the left and right movable bodies 14 are in a squeezed state, each winning opening is closed and the center bonus 8 cannot be won. In many cases, this type of pachinko machine 1 is provided with a first count sensor (not shown) for detecting the winning of a game ball at the winning opening of the center accessory 8.

  Various mechanisms are provided in the center accessory 8 according to the model of the pachinko machine 1. In the present embodiment, for example, a shelf board 20 is disposed inside the center accessory 8, and game balls won from the winning openings on both sides are received by the shelf board 20, and after having stayed there, the rolling destinations are distributed. In addition, although not shown in the drawing, a sorting device may be arranged inside the center accessory 8, and such a sorting device mechanically sorts the rolling destination of the game ball, so A chance to win a V prize can be given with probability.

  In addition, a V zone (specific region) 22 is formed in the center accessory 8 at, for example, the lowest position. When the game balls distributed in the center combination 8 pass through the V zone 22, a V prize is awarded and a special game state is entered. When shifting to the special game state, the center character 8 is operated in a predetermined pattern, and the player can obtain many opportunities to win the center character 8 during this time. On the contrary, if the game balls distributed in the center bonus 8 do not win V, the game balls pass through a normal zone 24 different from the V zone 22. The normal zone 24 is disposed on each side of the V zone 22, for example.

(2-1. Movable body)
The movable body 14 is configured to be displaceable with respect to the winning hole of the center accessory 8 between a posture (first posture) for closing it and a posture (second posture) for opening the same, in this example. Then, each movable body 14 rotates (rotates) in the left-right direction along the board surface with its base end as the center.

  Each movable body 14 extends obliquely upward (or upward) from the base end portion as the center of rotation, and the movable body 14 is in a state of rising substantially vertically in its first posture (indicated by a two-dot chain line). . On the other hand, when the movable body 14 is displaced to the second posture (indicated by a solid line), the movable body 14 is inclined obliquely upward from the base end portion. When this is seen on both the left and right sides, the two movable bodies 14 are both displaced to the second posture, so that they expand to the left and right. The range (opening width W) in which the above is possible is defined largely.

(2-2. Ball bearing surface)
As shown by the solid line in FIG. 2, when the pair of left and right movable bodies 14 are displaced to the second posture, the ball receiving surface 14a is formed at a position on the upper surface side. The game balls that flow down along the board surface are received by the ball receiving surface 14a of the movable body 14, and are guided to each winning opening of the center accessory 8 along the inclination. In this example, the ball receiving surface 14a has a stepped surface shape, but the ball receiving surface 14a may have various surface shapes such as a flat surface, a curved surface, and an uneven surface.

(2-3. First blade member, second blade member)
Next, the configuration of the movable body 14 will be described in more detail.
FIG. 3 specifically shows the relationship between the movable body 14 and a mechanism for operating the movable body 14. 3A shows a state where the movable body 14 is in the second posture, and FIG. 3B shows a state where the movable body 14 is in the first posture.

  Each movable body 14 is configured by combining two members (blade-like members), and specifically includes a main movable wing piece 16 and a sub-movable wing piece 18. Of these main movable wing pieces 16 and sub movable wing pieces 18, the sub movable wing pieces 18 are positioned on the front side as viewed from the player, and the main movable wing pieces 16 are arranged on the rear side (the side closer to the board surface). . If the direction from the board surface to the front is defined as the thickness direction (X-axis direction in FIG. 3), the main movable blade piece 16 and the sub movable blade piece 18 overlap each other in the thickness direction, and the main movable blade piece. Most of the front surface of 16 is covered with the sub movable blade 18.

  In this state, the tip end portion 16a of the main movable blade piece 16 is not covered by the sub movable blade piece 18 and protrudes to the near side by the amount formed larger in the thickness direction than the other portions. When this is viewed in the direction of rotation of the movable body 14 (around the X axis in FIG. 3), the tip portion 16a is on the upper side ((a) in FIG. 3) with respect to the sub movable blade 18 (FIG. 3 (b)). )), And the front surface of the tip portion 16a and the front surface of the sub-movable blade 18 are located in substantially the same plane (YZ plane in FIG. 3).

  In the case of this embodiment, the above-described ball receiving surface 14 a is composed of both the main movable blade piece 16 and the sub movable blade piece 18. For example, as shown in FIG. 3A, a sphere is formed on the upper surface of the tip portion 16a of the main movable wing piece 16, and on the upper surface of the portion not overlapping the tip portion 16a of the sub movable wing piece 18, respectively. A receiving surface 14a is formed. When this is viewed in the state of FIG. 3 (b), the tip 16a of the main movable wing piece 16 and the sub movable wing piece 18 both have the above-mentioned ball receiving surface 14a on the surface facing the inside of the center accessory 8. The range will be defined. From the above description, it is understood that the stepped shape of the ball receiving surface 14 a described above is caused by a step existing between the tip portion 16 a of the main movable blade piece 16 and the sub movable blade piece 18.

(3. Operating mechanism)
In this embodiment, two solenoids 26 are used as a driving source for operating the movable body 14. Most of the operating mechanism including these two solenoids 26 is disposed on the back side of the game board 4 and is usually not visible to the player. In the operating mechanism, the two solenoids 26 raise and lower the connecting beam 28 in the vertical direction, and the up / down motion is converted into the rotational motion of the drive shaft 30. Since such a function can be realized by a known structure, detailed description thereof is omitted here. In this embodiment, two solenoids 26 are used, but one or more solenoids 26 may be used.

  Of the main movable wing piece 16 and the sub movable wing piece 18, the main movable wing piece 16 is directly connected to the operating mechanism. That is, the base end portion of the main movable blade piece 16 is connected to the drive shaft 30. When the drive shaft 30 is rotated by the operating mechanism, the main movable blade piece 16 is rotated by the power. On the other hand, the sub movable blade 18 has a base end portion rotatably supported at a position different from the drive shaft 30.

(4. Link mechanism)
Next, FIG. 4 shows the connection relationship between the main movable blade piece 16 and the sub movable blade piece 18 in detail. FIG. 4 shows a longitudinal section of the main movable wing piece 16 and the sub movable wing piece 18 (cross section along the YZ plane in FIG. 3), and therefore it is easier to understand the structure of the sub movable wing piece 18. It has become.

  As described above, one end of the drive shaft 30 is fixed to the base end portion of the main movable blade piece 16, and in this state, one end of the drive shaft 30 is fitted in the thickness of the main movable blade piece 16. is there. For this reason, even if the sub movable wing piece 18 is superimposed on the front side of the main movable wing piece 16, the drive shaft 30 does not interfere with the sub movable wing piece 18.

  On the other hand, a support pin 32 is attached to the base end portion of the sub movable blade piece 18, and the support pin 32 protrudes from the back surface of the sub movable blade piece 18 in the thickness direction. The protruding end of the support pin 32 is rotatably supported by, for example, a main body portion (not shown in FIG. 4) of the center accessory 8 so that the sub movable wing piece 18 is in a direction along the board surface. It can be rotated.

  The support pins 32 are positioned above the drive shaft 30 and slightly away from the inner side with respect to the center accessory 8, and an appropriate clearance is provided between the support pins 32 and the drive shaft 30. Is secured. Further, as shown by adding a broken line in FIG. 4, the main movable wing piece 16 is formed so as to be bent slightly from the base end portion to the tip end portion 16 a, and the first posture as the movable body 14. In the state ((a) in FIG. 4), interference with the support pin 32 can be avoided inside the portion where the main movable blade piece 16 is bent by the bending.

  In order to connect the main movable wing piece 16 and the sub movable wing piece 18 to each other, a slide pin 16b is attached to the main movable wing piece 16, and a guide groove extending in the longitudinal direction of the sub movable wing piece 18 is provided. 18a is formed. The slide pin 16 b protrudes from the main movable blade piece 16 toward the front side, and the guide groove 18 a is opened on the back side of the sub movable blade piece 18. Therefore, the slide pin 16b can be fitted into the guide groove 18a in a state where the sub movable blade piece 18 is superimposed on the front side of the main movable blade piece 16, and the slide pin 16b slides along the guide groove 18a in this state. It is possible.

  The guide groove 18 a is formed between the position outside the support pin 32 and a position near the tip of the sub movable blade piece 18, and both the main movable blade piece 16 and the sub movable blade piece 18 serve as the movable body 14. In the state of being in the first posture ((a) in FIG. 4), the slide pin 16b is located at a substantially intermediate position of the guide groove 18a.

  From this state, when the main movable blade 16 is rotated in the direction in which the movable body 14 is expanded by the power of the actuation mechanism (counterclockwise direction in FIG. 4), the slide pin 16b is inserted into the secondary via the guide groove 18a. Since the movable blade 18 is pushed in the rotation direction, the sub movable blade 18 is rotated in the same direction.

  In the course of the rotation operation of the main movable blade piece 16 and the sub movable blade piece 18, the slide pin 16 b moves while relatively sliding in the guide groove 18 a toward the distal end direction of the sub movable blade piece 18. When both of these are displaced to the second posture as the movable body 14 ((b) in FIG. 4), the slide pin 16b reaches the end of the guide groove 18a. In this state, since the slide pin 16b is in contact with the terminal edge of the guide groove 18a, further slide is restricted. Thereby, since the rotational displacement of the main movable blade piece 16 and the sub movable blade piece 18 is stopped, neither of them further rotates beyond the second posture as the movable body 14.

  At this time, the stroke of the plunger of the solenoid 26 extending in the second posture of the movable body 14 has also reached the end, and the slide pin 16b is in contact with the end edge of the guide groove 18a as described above. If it is set so that the excessive rotational power beyond that may not be given from the drive shaft 30, it will become a more preferable aspect.

  On the contrary, when the main movable wing piece 16 is rotated in the direction in which the movable body 14 is returned from the second posture toward the first posture (clockwise direction in FIG. 4), the slide pin 16b is moved to the guide groove. It begins to slide away from the terminal end of 18a in the reverse direction (proximal direction). Also at this time, the slide pin 16b pushes the sub movable blade piece 18 in the rotation direction via the guide groove 18a, so that the sub movable blade piece 18 is rotated in the same direction.

  Also in this case, the slide pin 16b moves while relatively sliding in the guide groove 18a in the course of the rotation operation of the main movable blade piece 16 and the sub movable blade piece 18. When both of these are displaced to the first posture as the movable body 14 ((a) in FIG. 4), the slide pin 16b stops sliding at an intermediate position of the guide groove 18a. At this time, the stroke at which the plunger of the solenoid 26 contracts reaches the end, so that the main movable blade piece 16 and the sub movable blade piece 18 both stop rotating.

  In FIG. 4, only one (left side here) movable body 14 is shown, but the displacement of the other movable body 14 can be considered symmetrically with the above.

(5. Example of operation)
Next, an operation example in the case where both the main movable blade piece 16 and the sub movable blade piece 18 connected via the link mechanism are rotated will be described.
FIG. 5 shows the relationship between the displacement of the movable body 14 and the dimensions of each part. In the present embodiment, due to the structure, the drive shaft 30 is positioned closer to the outside of the center accessory 8 than the support pin 32 (represented by a horizontal eccentricity H), and the drive shaft 30 is more than the support pin 32. It is located below (represented by a vertical eccentricity V).

Further, in this embodiment on its structure, the main distance from the drive shaft 30 is a rotation center of the movable blade piece 16 until its leading end (represented by the radius R ₁₎ is constant, also the rotation of the auxiliary movable wings 18 distance from the center at which the support pin 32 to its distal end (represented by the radius R ₂₎ is also constant.

  In the above structure, when the state in which the main movable blade piece 16 and the sub movable blade piece 18 are both in the first posture as the movable body 14 (two-dot chain line) and the state in the second posture (solid line) are compared, In the state of the first posture than in the state of the two postures, the overlapping range of the sub movable blade piece 18 with respect to the main movable blade piece 16 is larger, and the tip positions of both are close to each other. On the other hand, the state where the sub movable blade 18 overlaps the main movable blade 16 is smaller in the second posture than in the first posture, and the tip positions of the two are separated from each other. It can be said that.

  Therefore, the range C defined as the ball receiving surface 14a when the movable body 14 is in the first posture is larger than the range C ′ defined as the ball receiving surface 14a when the movable body 14 is in the second posture. Small (C <C ′). When this is seen in the process in which the movable body 14 is displaced from the first position to the second position, the ball 14 is received by the movable body 14 while the main movable blade piece 16 and the sub movable blade piece 18 are both rotated. The range defined as the surface 14a is expanded (C → C ′). At this time, the direction in which the ball receiving surface 14a is expanded is opposite to the direction in which the movable body 14 is expanded, that is, the inner direction of the center accessory 8.

  However, on the other hand, the lengths of the main movable wing piece 16 and the sub movable wing piece 18 are not changed. In particular, the total length of the main movable wing piece 16 and the sub movable wing piece 18 is structurally extended. is not. Therefore, when these are viewed as the entire movable body 14, the length from the center of rotation (drive shaft 30) to the end of the ball receiving surface 14a remains constant. Here, the rotation center of the main movable blade piece 16 is defined as the rotation center of the movable body 14 because the end of the ball receiving surface 14 a is defined by the tip portion 16 a of the main movable blade piece 16. is there.

  Next, FIG. 6 shows an operation example of the left and right movable bodies 14. In the above operation example, only the movable body 14 on one side (here, the left side) is shown, but when the left and right movable bodies 14 are operated by the operation of the center accessory 8, the player visually recognizes as follows. The

  For example, when the center accessory 8 is not operated during a normal game, the player can visually recognize both the left and right movable bodies 14 in the first posture (two-dot chain line). In this case, the player can visually estimate the length of the ball receiving surface 14a from the size of the movable body 14, and can roughly approximate the winning probability when the center accessory 8 is activated. At this time, the player sees the shorter range C as the length of the portion that becomes the ball receiving surface 14a of the movable body 14.

  In this state, when the center accessory 8 is actuated by a start winning or the like, each movable body 14 is displaced to the second posture (solid line). In the process of this displacement, the length of the portion of the movable body 14 that becomes the ball receiving surface 14a is expanded from the range C to the range C ′, so that it seems that it is easier for the player to win the prize than previously imagined. Visible to. Due to the visual effect at this time, by making the player have an illusion that it is easy to win the center bonus item 8, it is possible to further increase the expectation of winning and to provide a highly entertaining game.

  On the other hand, in this embodiment, the length from the rotation center of the movable body 14 to the tip, that is, the end of the ball receiving surface 14a is not structurally extended. Therefore, even if the left and right movable bodies 14 are expanded, the predetermined opening width W does not fluctuate or expand, and the size thereof is always constant, so that the pachinko machine 1 There is no excessive increase in euphoria.

  In this respect, for example, in a variable winning device of a type provided with an auxiliary member that can protrude or retract from the tip of the movable body, if the auxiliary member remains in the retracted state, the opening width is too small and the interest is poor. On the other hand, if the auxiliary member is in a protruding state, the opening width becomes too large, and there is a risk that the euphoria may become excessively high. However, in this embodiment, such a problem does not occur.

(6. Reference to other embodiments)
The above is the description of one embodiment, but the embodiment of the present invention is not limited to this. In the following, other embodiments will be described with some examples.

  (1) In one embodiment, the center prize is taken as an example of the variable winning device. However, the variable winning device may be an electric tulip type or other forms, and the winning probability depends on the operation of the movable body. The form is not particularly limited as long as the value changes.

  (2) In the operation mechanism of one embodiment, a solenoid is used as a drive source, but other drive sources (for example, a motor) may be used.

  (3) In one embodiment, the drive shaft of the operating mechanism is connected to the main movable blade piece, but the drive shaft may be connected to the sub movable blade piece. In this case, the power given from the drive shaft to the sub movable blade piece is transmitted to the main movable blade piece via the link mechanism, and can function in the same manner as the above operation example.

  (4) In one embodiment, an example is given in which a slide pin is provided on the main movable wing piece and a guide groove is formed on the sub-movable wing piece. However, these may be arranged opposite to each other. . In addition, the specific configuration (slide pin, guide groove) of the link mechanism described in the embodiment is a preferable example to the last, and the configuration may be appropriately changed as long as it has a similar function.

  (5) In addition, the configuration of the center accessory and the specific shape and structure of each movable wing piece mentioned in the embodiment are all preferable examples, and these can be changed as appropriate.

It is a front view of the pachinko machine used as one embodiment. It is the figure which showed the center accessory and the surrounding part in detail. It is the perspective view which showed the relationship between a movable body and an action mechanism. It is a longitudinal cross-sectional view of a movable body. It is a figure for demonstrating the operation example of a movable body. It is a figure for demonstrating the operation example by a left-right movable body about a center combination.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Pachinko machine 8 Center part 14 Movable body 14a Ball receiving surface 16 Main movable blade piece 16b Slide pin 18 Sub movable blade piece 18a Guide groove 26 Solenoid 28 Connection beam 30 Drive shaft 32 Support pin

Claims (1)

A variable winning device having a movable body that is actuated when a predetermined operating condition is established, and capable of changing a winning probability to a prize opening according to an operating state of the movable body;
A gaming machine comprising: an operating mechanism that rotates the movable body around a predetermined rotation center to open and close the winning opening.

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