JP2008253652A - Pinball game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pinball game machine which can effectively prevent a spike bending fraudulent act aiming especially at spikes near a warp ball inlet. <P>SOLUTION: The pinball game machine which is arranged with lots of game nails 47 as well as a center case 15 which has for example an obliquely upward ball inlet 25 along a surface of a game board 11 includes a bridge member 51 which is arranged between a specific game spike 47a which is arranged across a falling space 52 of the distance more than a game ball diameter from the ball inlet 25 and the ball inlet 25 and is supported by the specific game spike 47a so that it can rotate. When the bending angle of the specific game spike 47a is within a prescribed range, the free end of an engaging part 54 engages with an engaged part 55 by the ball inlet 25, the bridge member 51 closes the falling space 52 and guides the game balls to the ball inlet 25. When the bending angle of the specific game spike 47a is out of the prescribed range, the engaging part 54 separates from the engaged part 55 and opens the falling space 52. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a ball game machine such as a pachinko machine.

  For example, in a pachinko machine, when a game ball launched from the launch means is guided to the game area via the guide rail, and when the game ball wins one of a plurality of winning holes arranged in the game area, A predetermined number of game balls are paid out as prize balls in accordance with the winning opening.

  In this type of pachinko machine, a game board is mounted on a front frame that is pivotably supported on the front side of the outer frame, and a glass having a glass window corresponding to the game area of the game board on the front side of the front frame. A door, a front opening / closing plate with a storage tray for game balls, and the like are pivotally mounted so as to be freely opened and closed.

  By the way, as a go-to action for this type of pachinko machine, for example, a piano wire is inserted from the gap between the glass door and the front frame, etc., and the game balls are bent so that the game balls are easy to win. The act of doing is a problem.

For such a goth action, in addition to the measures taken on the hardware side (see Patent Document 1) such as closing the gap between the glass door and the front frame to cut off the approach path such as a piano wire, etc. The hall side has dealt with measures such as frequently checking the base value and strengthening the staff's patrol.
JP 2004-275257 A

  However, such a conventional anti-goto measure has a large effect on the side of the game hall, but its effect is not always sufficient, such as stealing the eyes of a store clerk and drilling a hole in a glass door with a drill to bend a game nail, etc. There are also reports of bold cheating.

  Also, in recent pachinko machines, a winning hole for starting a symbol is arranged on the lower side of a center case having a symbol display means such as a liquid crystal display, and the lower side while rolling the game ball in the left and right direction in the center case. In other words, a stage that is dropped to the start prize opening side, a warp entrance that is provided on the side of the center case and opens sideways or obliquely upward, and a game ball that has entered the warp entrance is guided to the stage. This type of pachinko machine has a tendency to increase the probability of winning the starting prize opening via the stage, so the nail bending goto near the warping entrance There are many reports that nails were targeted.

  The present invention has been made in view of such conventional problems, and an object of the present invention is to provide a ball game machine capable of effectively preventing a nail bending goat action particularly targeting a nail near a warp entrance.

  In the present invention, in the game area 12 of the game board 11, there are a large number of game nails 47 in addition to the game parts 15 having the entrance 25 formed substantially horizontally or obliquely upward along the board surface of the game board 11. In the arranged ball game machine, the ball is inserted between the specific game nail 47a arranged at least with the flow-down space 52 for one game ball from the ball entrance 25 and the ball entrance 25, and a predetermined number. The bridge member 51 is rotatably supported by the rotation shafts 47a and 61, and the bridge member 51 has an engaging portion 54 on the bridge member 51 when the bending angle of the specific game nail 47a is within a predetermined range. The engaging portion 54 is engaged when engaged with the engaged portion 55 on the side of the entrance 25 or the specific game nail 47a, and the bending portion of the specific game nail 47a is out of the predetermined range. The engaged 55 or the specific game nail 47a so as to be disengaged, and the bridge member 51 in the engaged state closes the flow-down space 52 and guides the game ball to the entrance 25 side. The non-engaged bridge member 51 is configured to open the flow-down space 52.

  According to the present invention, for example, when an illegal nail bending exceeding the nail adjustment range is performed on the specific game nail 47a, the flow-down space 52 is opened and the entrance rate to the entrance 25 is large. As a result, the purpose of the nail bending goto cannot be achieved after all, and the nail bending goth action can be effectively prevented.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIGS. 1-6 has illustrated 1st Embodiment which employ | adopted this invention for the pachinko machine. In FIG. 1, a gaming machine main body 1 includes a rectangular outer frame 2 and a front frame 3 pivotally attached to the front side of the outer frame 2 so as to be freely opened and closed. On the front side of the front frame 3, a glass door 4 and a front plate 5 are arranged up and down and are pivotally supported by the front frame 3 so as to be opened and closed.

  On the front side of the front plate 5, an upper plate 6 for storing game balls for launch is arranged, and on the lower side of the front plate 5 on the front side of the front frame 3, a lower plate 7 for storing extra balls is arranged. Has been. On one side of the lower plate 7, for example, on the right side, a firing handle 8 a for operating the launching means 8 for launching a game ball is provided in a protruding shape on the front side of the front frame 3.

  A game board 11 is detachably attached to the back side of the front frame 3 so as to correspond to the rear side of the glass door 4. On the front side of the game board 11, as shown in FIG. 2, as shown in FIG. 2, an outer rail 13 that guides the game ball fired by the launching means 8 to the upper side of the game area 12, and an inner rail that defines the periphery of the game area 12 14 is mounted, and a center case (game part) 15 is arranged substantially at the center in the game area 12, and a normal symbol is started on the periphery of the center case 15, for example, on the left side of the center case 15. In addition to the special symbol starting means 17 and the big winning means 18 being arranged on the lower side of the means 16, various game parts such as the normal winning means 19 and the windmill 20 and the game nails 47 are arranged.

  As shown in FIG. 2 and the like, the center case 15 is arranged, for example, on a display frame body 23 that constitutes a display window 22 for the liquid crystal display 21 mounted on the back side of the game board 11 and on the lower side of the display frame body 23. Stage 24, a warp entrance (entrance entrance) 25 provided on the side of the display frame 23, a warp passage 26 for guiding the game balls entering the warp entrance 25 to the stage 24, etc. It has.

  The display frame 23 includes a left frame portion 31 and a right frame portion 32 that are arranged in the vertical direction along the left and right side edge portions of the liquid crystal display 21, and the left frame portion 31 and the right frame on the upper edge portion side of the liquid crystal display 21. For example, an upper frame portion 33 that connects the upper end side of the frame portion 32 to the left and right, and a lower frame portion 34 that connects the lower end side of the left frame portion 31 and the right frame portion 32 to the left and right sides on the lower edge side of the liquid crystal display 21. It is prepared as one.

  The upper frame portion 33 includes, for example, a decoration member 35 including a movable effect member and the like at the upper right portion thereof, and the upper edge side is formed so that the game ball flows down to the left or right. Further, the lower frame portion 34 is formed in a substantially V shape with the center in the left-right direction lower than the left and right sides, and the stage 24 is disposed in the left-right direction along the upper edge side.

  The stage 24 is for causing the game ball that has entered the warp entrance 25 to roll freely in the left-right direction and then drop it to the front side, and a plurality of horizontally formed rolling paths are formed in the front-rear direction. It is arranged in steps. Further, the lower frame portion 34 is provided with a ball discharge hole 34a for discharging the game ball rolled on the stage 24 to the front side in the center in the left-right direction, and at the upper edge portions on the left and right sides of the ball discharge hole 34a. A ball dropping portion 34b is provided for dropping a game ball that has deviated from the guide path to the ball discharge hole 34a to the front side.

  The warp entrance 25 is an entrance to the stage 24. As shown in FIGS. 3 to 6, the warp entrance 25 is a rectangular opening formed by a pair of front and rear side walls 36, 37 and a pair of upper and lower upper walls 38 and a bottom wall 39. For example, it is provided on the outer surface 31a of the left frame portion 31 obliquely upward along the board surface of the game board 11.

  The warp passage 26 connects the downstream side of the warp entrance 25 and a stage outlet 27 (FIG. 2) provided on the left end side of the stage 24 so that the game ball can flow down, along the left frame portion 31. It is arranged in a substantially vertical direction. The game ball that has entered the warp entrance 25 flows down the warp passage 26 and is discharged from the stage outlet 27 onto the stage 24. After freely rolling on the stage 24, the game ball or the central ball discharge hole 34a or The left and right ball drop portions 34b fall downward in the front side.

  Further, for example, a normal symbol display unit 41, a special symbol display unit 42, and the like are arranged on the right frame portion 32 on the display frame 23, for example.

  The normal symbol display means 41 is for variably displaying normal symbols, and is composed of, for example, two light emitters (for example, LEDs) corresponding to two types of normal symbols “O” and “X”. Under the condition that the symbol starting means 16 detects a game ball, the two illuminants flash alternately for a predetermined time, and either the “◯” side corresponding to the hit mode or the “X” side corresponding to the off mode The blinking ends when the light emitter emits light.

  The special symbol display means 42 is composed of one or a plurality of display means such as a seven-segment type capable of variably displaying one special symbol, for example, and the special symbol starting means 17 detects the game ball. A special symbol is displayed in a variable manner as a condition for a predetermined period of time, for example, the symbol symbol “0” to “9” corresponding to the big hit mode and the symbol symbol “−” corresponding to the off mode, for example, are stopped. It has become.

  Further, during the change of the special symbol by the special symbol display means 42, one or more, for example, three production symbols in the left-right direction are displayed on the liquid crystal display 21 so as to be synchronized with the change display of the special symbol in time. A variety of effect images are displayed in a variable manner. In addition, for example, 10 kinds of numerical symbols from “0” to “9” are used as production symbols, and all three symbols such as “6, 6, 6” and “7, 7, 7” are arranged in the same pattern. The thing is a big hit mode, and the one with different at least one pattern is the off mode.

  The normal symbol starting means 16 is for starting the fluctuation of the normal symbol by the normal symbol display means 41, and is constituted by a passing gate through which a game ball can pass, for example.

  The special symbol starting means 17 is for starting the variation of the special symbol by the special symbol display means 42, and can be opened and closed by, for example, a non-operating upper start winning prize port 43 having no opening and closing means and an opening and closing means 44. An actuated lower start winning opening 45 is provided above and below, and the upper start winning opening 43 is disposed below the center case 15 so as to be directly below the ball discharge hole 34a. Accordingly, a game ball that has entered the stage 24 from the warp entrance 25 will win the upper start winning opening 43 with a high probability if it falls from the ball discharge hole 34a. The lower start winning opening 45 is switched to an open state for a predetermined time when the stop symbol after the variation of the normal symbol display means 41 is in a hit state.

  The big winning means 18 is an actuating type equipped with an opening / closing plate 46 that can be changed between an open state in which a game ball can be won and a closed state in which a prize cannot be won, and the special symbol display means 42 has a special symbol after change. Based on the big win mode, the opening / closing plate 46 is opened to the front side for a predetermined period, and the game ball that has dropped thereon is configured to win a prize.

  Further, on the game area 12 outside the warp entrance 25, a bridge member 51 is installed between the specific game nail 47 a and the lower side of the warp entrance 25.

  The specific game nail 47a is a target to be adjusted mainly when changing the entrance rate to the warp entrance 25 out of a large number of game nails 47 arranged in the game area 12. FIG. As shown in FIG. 6 and the like, for example, the warp entrance 25 is disposed at a position separated from the lower side of the warp entrance 25 in the opening direction, that is, obliquely upward, with a flow-down space 52 for at least one game ball.

  The bridge member 51 is formed, for example, in a substantially rectangular flat plate shape using, for example, a synthetic resin. For example, a hole-shaped pivot 53 provided in the front-rear direction is provided on one end side in the left-right direction, and the longitudinal direction is provided on the other end side in the left-right direction. Engaging portions 54 that project in the (left-right direction) are provided. The engaging portion 54 is provided only at, for example, a part of the front side of the right edge portion of the bridge member 51.

  The bridge member 51 is supported by a specific game nail (an example of a rotating shaft) 47a inserted through the pivotal support portion 53 so as to be rotatable about its axis, and the engaging portion 54 is engaged on the warp entrance 25 side. By engaging the portion 55 from the upper side, the warp entrance 25 side is laid between the specific game nail 47a and the lower side of the warp entrance 25 so as to be inclined. The engaged portion 55 is formed in, for example, a notch shape along the lower edge side of the warp entrance 25, and when the engaging portion 54 engages with the engaged portion 55, the upper surface side of the bridge member 51. And the upper surface side of the bottom wall 39 of the warp entrance 25 smoothly communicate with each other.

  In this way, the flow-down space 52 is closed by the bridge member 51, and the game ball that has dropped to the upper side of the bridge member 51 is guided to the warp entrance 25 side.

  Further, the engagement width between the engaging portion 54 of the bridge member 51 and the engaged portion 55 on the warp entrance 25 side is such that the bending portion of the specific game nail 47a is out of a predetermined range. Is set to be disengaged from the engaged portion 55.

  Here, the predetermined range related to the bending angle of the specific game nail 47a may be set to a range that is substantially the same as or slightly wider than the angle range assumed in the nail adjustment. That is, when the upper limit angle when the specific game nail 47a is bent to the side opposite to the warp entrance 25 side in the nail adjustment is, for example, 5 degrees, the specific game nail 47a is engaged when the bending angle exceeds 5 degrees. What is necessary is just to set the engagement width of the engaging part 54 and the to-be-engaged part 55 so that the part 54 may remove | deviate from the to-be-engaged part 55 (it shows with a dashed-dotted line in FIG.5 and FIG.6).

  Note that when the specific game nail 47a is bent, the amount of displacement usually increases from the base side to the tip side of the specific game nail 47a. It is provided only in a part of the front side of the bridge member 51, for example, in the range of about 1/2 of the front side so as to correspond to the front end side (see FIG. 6). As a result, the variation amount of the engagement width between the engaging portion 54 and the engaged portion 55 with respect to the bending of the specific game nail 47a can be increased, and when the bending angle of the specific game nail 47a is out of the predetermined range. There is an advantage that it is possible to easily perform the setting so that the engaging portion 54 is surely detached from the engaged portion 55.

  When the bridge member 51 is disengaged, the flow-down space 52 is opened (indicated by a two-dot chain line in FIGS. 5 and 6), so that the game has fallen between the specific game nail 47a and the warp entrance 25 The ball passes through the flow-down space 52 and flows down to the lower side of the game area 12.

  As described above, in the pachinko machine of the present embodiment, the specific game nail 47a disposed at least from the warp entrance 25 with a flow-down space 52 for at least one game ball is rotatably supported around its axis. The bridge member 51 includes an engagement portion 54 on the free end side of the specific game nail 47a in the nail adjustment range, for example, and the engaged portion 54 on the warp entrance 25 side. The engaging portion 54 is engaged with the portion 55, and when the bending angle of the specific game nail 47a is out of the nail adjustment range, the engaging portion 54 is disengaged from the engaged portion 55 and is disengaged. The bridge member 51 in the engaged state closes the flow-down space 52 and guides the game ball to the warp entrance 25 side, and the bridge member 51 in the non-engagement state opens the flow-down space 52 and moves the game ball into the game area. I will guide you to the lower part of 12 Therefore, when an illegal nail bending exceeding the nail adjustment range is performed on the specific game nail 47a, the flow-down space 52 is opened and the entrance rate to the warp entrance 25 is Since it will be greatly reduced and the purpose of the nail bending goto cannot be achieved after all, it is possible to effectively prevent the nail bending goto action.

  In addition, since the engaged portion 55 is provided only in the front part of the entire range of the bridge member 51 in the front-rear direction where the displacement amount for the specific game nail 47a is large, the engagement portion for the bending of the specific game nail 47a. 54 and the engaged portion 55 can be increased in variation, so that the engaging portion 54 can be reliably removed from the engaged portion 55 when the bending angle of the specific game nail 47a is out of the predetermined range. There is an advantage that a setting that deviates can be easily performed.

  FIGS. 7 and 8 illustrate the second embodiment of the present invention, and FIGS. 9 and 10 illustrate the third embodiment of the present invention. Both the engaging portion 54 on the bridge member 51 side and the warp entrance 25 side are illustrated. This shows an example in which the engaged portion 55 is engaged with both the forward and reverse rotational directions of the bridge member 51.

  In the second embodiment shown in FIGS. 7 and 8, the engaging portion 54 is provided in a convex shape, for example, at a part of the front side along the free end side of the bridge member 51, and the engaged portion 55 is a warp entrance. 25, the engaging portion 54 is provided in a concave shape so that the bridge member 51 can be prevented from rotating in both forward and reverse directions. .

  On the other hand, in the third embodiment shown in FIGS. 9 and 10, the engaging portion 54 is provided in a concave shape along the free end side of the bridge member 51, and the engaged portion 55 is the outer surface of the warp entrance 25. 31a is provided in a convex shape that can be fitted to the engaging portion 54, and in the engaged state, the bridge member 51 is configured to be prevented from rotating in both forward and reverse directions. The engaged portion 55 is provided so as to correspond only to a part of the front side on the bridge member 51 side.

  As in the second and third embodiments, the engaging portion 54 on the bridge member 51 side and the engaged portion 55 on the warp entrance 25 side are engaged in both forward and reverse rotation directions of the bridge member 51. Accordingly, it is possible to prevent a problem that the bridge member 51 jumps up due to a reaction caused by a collision of game balls.

  FIG. 11 illustrates the fourth embodiment of the present invention, and shows an example in which the bridge member 51 is provided with a notch 51a corresponding to the tip side of the specific game nail 47a.

  This embodiment is a partial modification of the second embodiment shown in FIGS. 7 and 8. As shown in FIG. 11, the bridge member 51 has a notch corresponding to the tip side of the specific game nail 47a. A portion 51a is formed. The notch 51a is formed in, for example, a substantially triangular shape so that the distance from the distal end side of the specific game nail 47a to the bridge member 51 is a certain value or more.

  Note that it is desirable that the cutout portion 51a be formed as large as possible within a range in which the game ball cannot pass and does not stop the flowing game ball. By configuring as described above, there is an advantage that the nail adjustment work of the specific game nail 47a can be easily performed.

  12 and 13 exemplify the fifth embodiment of the present invention, showing an example in which the bridge member 51 is rotatably supported by the front-rear direction rotation shaft 61 provided on the warp entrance 25 side. Yes.

  As shown in FIGS. 12 and 13, the bridge member 51 of the present embodiment is provided with a pivotal support portion 53 on one end side in the left-right direction and an engagement portion 54 on the other end side in the left-right direction. The pivot portion 53 is inserted into the rotary shaft 61 disposed in the front-rear direction along the lower edge side of the ball opening 25 so that the pivot portion 53 is rotatably supported, and the engaging portion 54 is engaged with the specific game nail 47a. Thus, the warp entrance 25 side is laid between the specific game nail 47a and the warp entrance 25 so as to have a low inclination.

  The engaging portion 54 is formed, for example, in a recessed shape along the left edge portion of the bridge member 51, and is engaged with the specific game nail 47a so as to sandwich the shaft portion from both the upper and lower sides. Note that the engaging portion 54 is provided, for example, only in a part of the front side of the left edge portion of the bridge member 51, for example, in a range of about 1/2 of the front side.

  The engagement width between the engagement portion 54 and the specific game nail 47a is such that the engagement portion 54 is disengaged from the engaged portion 55 when the bending angle of the specific game nail 47a is out of a predetermined range, for example, the nail adjustment range. As in the first to fourth embodiments, it is set so as to be in a non-engaged state, and when an illegal nail bending that exceeds the nail adjustment range is performed on the specific game nail 47a, it flows down Since the space 52 is opened and the entrance rate to the warp entrance 25 is greatly reduced, and the purpose of the nail bending goat cannot be achieved after all, the nail bending goat action can be effectively prevented.

  14 and 15 illustrate a sixth embodiment of the present invention, showing an example in which a bridge member 51 is rotatably supported by a substantially horizontal rotation shaft 61 provided in parallel with the game board 11. Yes.

  As shown in FIGS. 14 and 15, the bridge member 51 of the present embodiment has a pivotal support portion 53 on one end side in the front-rear direction, for example, the rear end side, and an engagement portion 54 on the end portion on the specific game nail 47 a side in the left-right direction. For example, the pivot portion 53 is inserted into the rotary shaft 61 disposed substantially in the left-right direction along the front side of the game board 11 so that the pivot portion 53 is rotatably supported, and the engaging portion 54 is provided. By engaging with the specific game nail 47a, the warp entrance 25 side is laid between the specific game nail 47a and the warp entrance 25 with a low inclination. The rotating shaft 61 is provided on the center case 15 side, for example.

  The engagement width between the engagement portion 54 and the specific game nail 47a is such that when the bending angle of the specific game nail 47a is out of a predetermined range, for example, a nail adjustment range, the engagement portion 54 is separated from the engaged portion 55. It is set so as to be disengaged and disengaged, and in the same way as in the first to fifth embodiments, when an illegal nail bending exceeding the nail adjustment range is performed on the specific game nail 47a Since the falling space 52 is opened and the entrance rate to the warp entrance 25 is greatly reduced, the purpose of the nail bending goat cannot be achieved after all, and the nail bending goat action can be effectively prevented.

  As described above, the rotation shaft that rotatably supports the bridge member 51 is not necessarily arranged in the front-rear direction, and may be arranged in parallel to the board surface of the game board 11.

  As mentioned above, although embodiment of this invention was explained in full detail, this invention is not limited to these embodiment, A various change is possible in the range which does not deviate from the meaning of this invention. For example, the entrance hole 25 to which the bridge member 51 is arranged is not necessarily limited to the warp entrance 25 as an entrance to the stage 24, and may be a normal winning entrance, for example.

  When the bridge member 51 is rotatably supported by a rotation shaft 61 other than the specific game nail 47a, the rotation shaft 61 may be fixed to a game component other than the game component having the entrance 25 or the game board 11. .

  The present invention is not limited to pachinko machines and can be similarly implemented in various ball game machines such as an arrangement ball machine and a sparrow ball game machine.

1 is an overall front view of a pachinko machine showing a first embodiment of the present invention. It is a front view of the game board of the pachinko machine which shows the 1st Embodiment of this invention. It is a principal part front view of the pachinko machine which shows the 1st Embodiment of this invention. It is a principal part perspective view of the pachinko machine which shows the 1st Embodiment of this invention. It is principal part front sectional drawing of the pachinko machine which shows the 1st Embodiment of this invention. It is principal part plane sectional drawing of the pachinko machine which shows the 1st Embodiment of this invention. It is principal part front sectional drawing of the pachinko machine which shows the 2nd Embodiment of this invention. It is principal part plane sectional drawing of the pachinko machine which shows the 2nd Embodiment of this invention. It is principal part front sectional drawing of the pachinko machine which shows the 3rd Embodiment of this invention. It is principal part plane sectional drawing of the pachinko machine which shows the 3rd Embodiment of this invention. It is principal part plane sectional drawing of the pachinko machine which shows the 4th Embodiment of this invention. It is principal part front sectional drawing of the pachinko machine which shows the 5th Embodiment of this invention. It is principal part plane sectional drawing of the pachinko machine which shows the 5th Embodiment of this invention. It is principal part plane sectional drawing of the pachinko machine which shows the 6th Embodiment of this invention. It is a principal part perspective view of the pachinko machine which shows the 6th Embodiment of this invention.

Explanation of symbols

11 gaming board 12 gaming area 15 center case (an example of gaming parts)
25 Warp entrance (entrance entrance)
47 Game nail 47a Specific game nail (example of rotating shaft)
51 Bridge member 52 Flowing space 54 Engaging portion 55 Engaged portion 61 Rotating shaft

Claims (6)

In addition to the game component (15) having a ball slot (25) formed substantially horizontally or obliquely upward along the surface of the game board (11) in the game area (12) of the game board (11), In the ball game machine in which a large number of game nails (47) are arranged, a specific game nail (47a) arranged with a flow-down space (52) corresponding to at least one game ball from the entrance (25). A bridge member (51) disposed between the entrance (25) and rotatably supported by predetermined rotation shafts (47a) (61) is provided, and the bridge member (51) includes the specific game. When the bending angle of the nail (47a) is within the predetermined range, the engaging portion (54) on the bridge member (51) is the engaged portion (55) on the side of the entrance (25) or the specific game nail. (47a) is engaged, and the specific game nail (4 The engagement portion (54) is disengaged from the engaged portion (55) or the specific game nail (47a) when the bending angle of a) is out of the predetermined range, and is in an unengaged state. The bridge member (51) in the engaged state closes the flow-down space (52) to guide the game ball to the entrance (25) side, and the bridge member (51) in the non-engaged state is A bullet ball game machine configured to open the flow-down space (52). The rotating shaft is the specific game nail (47a), and the bridge member (51) is located at the end of the entrance (25) side when the bending angle of the specific game nail (47a) is within a predetermined range. The engaging portion (54) is engaged with the engaged portion (55) on the entrance (25) side, and the bending angle of the specific game nail (47a) is out of the predetermined range. The ball game machine according to claim 1, wherein the engaging portion (54) is sometimes disengaged from the engaged portion (55) to be in a disengaged state. The rotation shaft is a front-rear rotation shaft (61) provided on the entrance (25) side, and the bridge member (51) has a bending angle of the specific game nail (47a) within a predetermined range. At a certain time, the engaging portion (54) on the side of the specific game nail (47a) is engaged with the specific game nail (47a), and the bending angle of the specific game nail (47a) is the predetermined angle. 2. The ball game according to claim 1, wherein the engaging portion (54) is configured to be disengaged from the specific game nail (47a) when out of range. Machine. The rotation shaft is a substantially horizontal rotation shaft (61) provided parallel to the game board (11), and the bridge member (51) has a bending angle of the specific game nail (47a) within a predetermined range. The engaging portion (54) on the side of the specific game nail (47a) is engaged with the specific game nail (47a), and the bending angle of the specific game nail (47a) is 2. The bullet ball according to claim 1, wherein the engagement portion (54) is disengaged from the specific game nail (47 a) when being out of a predetermined range and is in a non-engagement state. Gaming machine. The engaging portion (54) and the engaged portion (55) or the specific game nail (47a) are engaged in both forward and reverse rotation directions of the bridge member (51), and when in the engaged state, The bullet ball game machine according to any one of claims 1 to 4, wherein the bridge member (51) is configured to be prevented from rotating in both forward and reverse directions. In the engaged state, the engaging portion (54) and the engaged portion (55) or the specific game nail (47a) are configured to engage only in a front portion of the bridge member (51). The bullet ball game machine according to any one of claims 1 to 5, wherein

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