JP5853230B2 - Bullet ball machine - Google Patents

Description

  The present invention relates to a ball game machine equipped with a ball return prevention member.

Conventionally, a launched game ball is allowed to enter a game area where a winning opening etc. is arranged via a launch passage, and a benefit is provided to a player by a result of winning a game ball flowing down the game area, etc. In order to eliminate the problem that the game ball that has once entered the game area will go back to the launch path (backflow, return to the ball) again, the game area is located near the end of the game area side of the launch path. 2. Description of the Related Art A bullet ball game machine having a ball return prevention member that promotes entry of a game ball into an area and blocks a game ball that attempts to go back to a launch path is widely known.
On the other hand, a game ball in which fishing line or the like is fixed to a bullet ball game machine as described above, that is, a difference in profits that a player enjoys depending on whether or not a game ball enters a prize opening or the like. A so-called threaded ball got that frequently obtains an unreasonable gain is frequently generated by launching into a region, operating a fishing line or the like by hand, and repeatedly detecting it with a detection switch at an arbitrary winning opening.
Such an unreasonable gain is obtained by integrally configuring a game ball such as a fishing line so that it can be operated against the free movement of the game ball that would otherwise flow down. A technique (for example, see Patent Document 1) having a fraud detection mechanism that detects the movement of a fraudulent ball has been devised, although it is not provided in a ball game machine for fraudulent attempts to obtain .

JP-A-10-85441

However, even if the technique described in Patent Document 1 is applied to a ball game machine, it is only possible to detect the fact that fraud has been performed, and fraud using the ball with thread itself can be easily performed. There was no change in the state, and it did not become a deterrent against the ball with thread.
The present invention has been made in view of the above-mentioned problems, and it is difficult or impossible to perform the illegal act by capturing a thread (string body) and restricting a free operation of a game ball with respect to a ball goto with a thread. The purpose is to do.

Ball-shooting game machine according to claim 1 of the present invention has been made to solve the above problems, the a game area where the game balls provided on the game board flows down, the game balls, which are fired from the firing path In the bullet ball gaming machine including a ball return prevention member that allows entry into the game area and prevents backflow from the game area to the launch passage, the ball return prevention member is configured such that the released game ball is played by the game When entering the area, or when trying to back flow from the gaming area to the launch passage, contact with the ball return prevention piece formed in a substantially rectangular shape , provided at a position below the ball return prevention piece, The ball return prevention member includes a support shaft that pivotally supports the ball return prevention member so as to be swingable from a substantially upright standby posture before the game ball entering the game area contacts the tilted posture after the contact. Pieces enter the gaming area And a capturing part that is secured to the game ball to catch operable cord body the recreation sphere, a guide portion for guiding the string member is formed on the upper end of the ball return prevention piece into the capture portion, spheres When the return prevention member is in the standby position, the string body is dropped from the guide portion by being erected in the direction from the game area toward the launch passage at the upper side and one side end of the ball return prevention piece. It is characterized by having a drop-off prevention part for preventing.

The bullet ball game machine according to claim 2 , wherein a game area provided on the game board and where the game ball flows down, and the fired game ball is allowed to enter the game area from the launch passage and the game area. In the ball game machine provided with the ball return prevention member for preventing backflow from the launch path to the launch path, the ball return prevention member is used when the launched game ball enters the game area or from the game area to the launch path. A ball return prevention piece that comes into contact when trying to flow backward, and the ball return prevention piece is fixed to the game ball that has entered the game area and captures a string that can operate the game ball; A guide part for guiding the string body to the capturing part; and an extension part extending from the guide part and guiding the string body to the guide part, wherein the game board avoids contact with the extension part. A concave portion is provided.

The bullet ball game machine according to claim 3 , wherein the game area is provided on the game board and the game ball flows down, and the fired game ball is allowed to enter the game area from the launch passage and the game area. In the ball game machine provided with the ball return prevention member for preventing backflow from the launch path to the launch path, the ball return prevention member is used when the launched game ball enters the game area or from the game area to the launch path. A ball return prevention piece that comes into contact when trying to flow backward, and the ball return prevention piece is fixed to the game ball that has entered the game area and captures a string that can operate the game ball; A guiding part for guiding the string body to the capturing part, a drop-off preventing part for preventing the string body from falling off the ball return prevention piece, and extending from the guiding part to guide the string body to the guiding part The game board has the extension portion. Characterized by comprising a recess to avoid contact with the parts.

According to a fourth aspect of the present invention, in the bullet ball game machine according to the first to third aspects, the capturing part includes a cutting edge part capable of cutting the captured string body. To do.

According to a fifth aspect of the present invention, in the bullet ball game machine according to the first to fourth aspects, the ball return prevention piece is a normal displacement caused by contact when the launched game ball enters the game area. Anomaly detection means capable of detecting an angle and an abnormal displacement angle larger than the normal displacement angle and capable of detecting the displacement to the abnormal displacement angle, and notifying that the detection means has been detected to be displaced to the abnormal displacement angle And a notifying means.

According to ball-shooting game machine according to claim 1, which when the ball returns to the blocking and fired gaming balls to sphere anti-return piece is retrograde from game area to launch passage enters from the firing path to the game region When the string body is fixed to the game ball while maintaining the function of guiding the ball, the ball return prevention piece supports the string body, and the guiding section guides the string body to the capturing section, and the guided string body Since the catching portion firmly catches the freehand, it is possible to make it difficult to freely operate the string body and not to give an unfair gain to the fraudster.

  In addition, since the capture unit captures the string body fixed to the game ball for the purpose of fraud, and the guide unit functions only to guide the string body to the capture unit, it does not act on a regular game ball. It is possible to function only when the game ball to which the string body related to the threaded ball goto has entered the game area. Therefore, since it functions automatically when a string exists, it is not necessary to provide a special device for detecting the presence or absence of an unauthorized string.

  In addition, as a function for restricting the free operation of the string body, the guide part and the supplement part are provided in the ball return preventing member disposed in the game board, thereby taking measures against fraud. This can be clearly shown to a fraudulent person, and can be expected to have a preventive effect on fraudulent acts as compared to dealing with an invisible portion.

  In addition, it has a drop-off prevention part that prevents the string once supported at the upper end of the ball return prevention piece from falling into the gap on the game board side or the glass plate side. The string body thus made can be transferred to the capturing section through the guiding section with a high probability.

According to the ball game machine of the second aspect , the ball return prevention piece prevents the return of the ball from going backward from the game area to the launch path, and when the fired game ball enters the game area from the launch path. When the string body is fixed to the game ball while maintaining the function of guiding the ball, the ball return prevention piece supports the string body, and the guiding section guides the string body to the capturing section, and the guided string body Since the catching portion firmly catches the freehand, it is possible to make it difficult to freely operate the string body and not to give an unfair gain to the fraudster.

  In addition, since the capture unit captures the string body fixed to the game ball for the purpose of fraud, and the guide unit functions only to guide the string body to the capture unit, it does not act on a regular game ball. It is possible to function only when the game ball to which the string body related to the threaded ball goto has entered the game area. Therefore, since it functions automatically when a string exists, it is not necessary to provide a special device for detecting the presence or absence of an unauthorized string.

  In addition, as a function for restricting the free operation of the string body, the guide part and the supplement part are provided in the ball return preventing member disposed in the game board, thereby taking measures against fraud. This can be clearly shown to a fraudulent person, and can be expected to have a preventive effect on fraudulent acts as compared to dealing with an invisible portion.

Furthermore, since the string body taking the trajectory entering the gap on the game area side or the glass plate side is guided by the extending portion provided so as to extend continuously from the guiding portion, an unauthorized string body can be formed over a wider range. Capturing with certainty, and thus solid trapping, can prevent free operation.
Further, by providing the game board with a concave portion that does not interfere with the extended portion, it is possible to capture even a string body that takes a track close to the game board.

According to the bullet ball game machine of claim 3 , the ball return prevention piece prevents the ball return from going backward from the game area to the launch path, and the fired game ball enters the game area from the launch path. When the string body is fixed to the game ball while maintaining the function of guiding the ball, the ball return prevention piece supports the string body, and the guiding section guides the string body to the capturing section, and the guided string body Since the catching portion firmly catches the freehand, it is possible to make it difficult to freely operate the string body and not to give an unfair gain to the fraudster.

  In addition, since the capture unit captures the string body fixed to the game ball for the purpose of fraud, and the guide unit functions only to guide the string body to the capture unit, it does not act on a regular game ball. It is possible to function only when the game ball to which the string body related to the threaded ball goto has entered the game area. Therefore, since it functions automatically when a string exists, it is not necessary to provide a special device for detecting the presence or absence of an unauthorized string.

  In addition, as a function for restricting the free operation of the string body, the guide part and the supplement part are provided in the ball return preventing member disposed in the game board, thereby taking measures against fraud. This can be clearly shown to a fraudulent person, and can be expected to have a preventive effect on fraudulent acts as compared to dealing with an invisible portion.

  In addition, it has a drop-off prevention part that prevents the string once supported at the upper end of the ball return prevention piece from falling into the gap on the game board side or the glass plate side. The string body thus made can be transferred to the capturing section through the guiding section with a high probability.

Furthermore, since the string body taking the trajectory entering the gap on the game area side or the glass plate side is guided by the extending portion provided so as to extend continuously from the guiding portion, an unauthorized string body can be formed over a wider range. Capturing with certainty, and thus solid trapping, can prevent free operation.
Further, by providing the game board with a concave portion that does not interfere with the extended portion, it is possible to capture even a string body that takes a track close to the game board.

According to the bullet ball game machine according to claim 4 , in addition to making the operability of the string body inconvenient because the string body is firmly captured by the capturing unit, an unauthorized person further operates the string body. When the pressure is applied, the string body is cut by the cutting blade portion, so that it is possible to completely disable the unauthorized person from operating the string body. The game ball to which the string body after cutting is fixed can be confiscated as evidence of fraudulent activity by remaining in the plane, and the illegal act can be prevented from being performed by the fraudulent person using the game ball. .

According to the bullet ball game machine of claim 5 , the abnormality detecting means detects an abnormal displacement angle that is displaceable when the string fixed to the game ball is supported by the upper end portion of the ball return prevention piece. Therefore, it is possible to reliably and promptly recognize that the threaded ball goto has been executed with a simple device. In addition, since the notification means notifies the occurrence of an abnormality, it is possible to quickly process the illegal act and to suppress the illegal act.

The front view of the game board 1 provided in the pachinko machine of Example 1 which concerns on this invention. The schematic perspective view explaining the structure of the ball return preventing member 30 of the present embodiment. Schematic explanatory drawing explaining the effect | action with respect to the launch ball 20 of the ball return prevention member 30 Schematic explanatory drawing explaining the effect | action with respect to the launch ball 20 of the ball return prevention member 30 Schematic explanatory drawing explaining the effect | action with respect to the operation thread | yarn 21 of the ball return prevention member 30 Schematic side view for explaining the action of the ball return preventing member 30 on the operation thread 21 Schematic explanatory drawing explaining the effect | action with respect to the operation thread | yarn 21 of the ball return prevention member 30 Schematic side view for explaining the action of the ball return preventing member 30 on the operation thread 21 The schematic perspective view explaining the structure of the ball return prevention member 130 of Example 2. FIG. Schematic explanatory drawing explaining the effect | action with respect to operation thread 21a, 21b of the ball return prevention member 130 Schematic side view for explaining the action of the ball return preventing member 130 on the operation threads 21a and 21b Schematic explanatory drawing explaining the effect | action with respect to operation thread 21a, 21b of the ball return prevention member 130 Schematic side view for explaining the action of the ball return preventing member 130 on the operation threads 21a and 21b Schematic explanatory drawing explaining the structure of the ball return prevention member 30 provided with the abnormality detection means of the present Example of Example 3. Schematic explanatory drawing explaining the structure of the ball return prevention member 30 provided with the abnormality detection means of the present Example of Example 3. Schematic explanatory drawing explaining the ball return prevention member of the modifications 1 to 5 Schematic explanatory drawing explaining the ball return prevention member of the modifications 6 thru | or 9. Schematic three views for explaining the configuration of Example 4

Hereinafter, preferred embodiments of the present invention will be described. The embodiments of the present invention are not limited to the following examples, and can take various forms belonging to the technical scope of the present invention, and the contents described in the respective examples are appropriately combined. It goes without saying that it is possible.
[Example 1]

  First, a pachinko machine according to the present invention includes a launching handle (not shown), a player operates a launching ball to launch a game ball, and the launched game ball passes through a launch path 15 described later to play a game area. 3 and the entire configuration including this point is in accordance with a publicly known technique, and illustration and description are omitted for convenience.

  FIG. 1 is a front view of a game board 1 provided in a pachinko machine as a ball game machine according to a first embodiment of the present invention. As shown in FIG. 1, a substantially circular game area 3 is formed by an outer rail set 2a and an inner rail set 2b in the game board 1 of the pachinko machine according to the present embodiment. A launch passage 15 formed by the outer rail set 2a and the inner rail set 2b and guided by a launched game ball is provided on the left outer peripheral portion of the game area 3. A ball return prevention member 30 comprising a ball return prevention piece 40, which is a main part of the present invention, is disposed at the end of the launch path 15, in other words, near the boundary between the launch path 15 and the game area 3. Yes. The ball return preventing member 30 will be described in detail later.

  A center case 5 is attached to substantially the center of the game area 3. On the left side of the center case 5, a normal operation winning opening 16 is provided. In the inside of the normal operation winning opening 16, a general operation winning detection switch (not shown) is incorporated. The normal operation winning detection switch detects the passing of the game ball, and is determined to be a winning. In this way, when a game ball wins in the normal figure operation winning opening 16, a plurality of types of random numbers for the normal design winning / nothing lottery are extracted, and whether or not to win (normal symbol lottery) based on the extracted random numbers is performed. In addition, a predetermined number (for example, three) of game balls are paid out as prize balls by the winning.

  Immediately below the center case 5 are a first special figure start opening 11 and a second special figure start opening where a big hit lottery with a change display of a special symbol (also indicated as a special figure) is performed due to the entry of a game ball. 12 are arranged side by side. The first special figure starting port 11 is configured so that a game ball can always be won, but the second special figure starting port 12 is opened so that a game ball can be won only at the time of winning by the above-described normal symbol lottery. It is composed of ordinary electric accessories.

  When a game ball enters the first special figure starting port 11 and the second special figure starting port 12, a plurality of types of random numbers are extracted, and if the immediate variation display cannot be started, it is stored as a special figure hold memory. The

  Below the second special figure starting port 12, there is disposed a big winning port 14 made of a special electric accessory that is opened when a big hit game is executed when a big hit is made by a big hit lottery. In addition, a plurality of general winning holes 13 having a function of simply generating a prize ball by winning are arranged in the lower right part of the game area 3.

The area on the lower right side of the game board 1 is composed of a 7-segment display device and variably displays special symbols based on the balls entering the first special figure starting port 11 and the second special figure starting port 12. A first special figure display device 9 and a second special figure display device 10 are arranged vertically.
In addition, each of the LEDs is composed of four LEDs, and the number of the special figure holding memory stored based on the balls entering the first special figure starting port 11 and the second special figure starting port 12 is displayed. The special figure reservation number display device 17 and the second special figure reservation number display device 18 are arranged vertically. In addition, there are two LEDs in the same way as the ordinary figure holding number display device 8 which is composed of four LEDs and displays the number of reserved figures stored in the ordinary figure on the basis of winning in the ordinary figure operation winning opening 16. And a normal symbol display device 7 for displaying a variation of the normal symbol based on a winning at the normal symbol operation winning opening 16.

In the center of the center case 5, there is an effect symbol display device 6 (not shown as a whole) composed of an LCD panel, and on the LCD panel screen, the effect symbol changes corresponding to the special symbol change display. By performing the display, the big hit effect for notifying the result of the big win lottery is executed. Further, the center case 5 is provided with a warp inlet, a warp route, a stage, and the like, as is well known.
A large number of game nails 4 are planted at appropriate locations on the front surface (front surface) of the game area 3, and at the bottom of the game area 3, any prize opening or entry placed in the game area 3 is entered. An out port is provided for taking in game balls that have not entered the ball port.

In addition, a glass plate 46 through which the gaming board 1 can be seen through is provided in front of the gaming board 1 of the pachinko machine of the present embodiment with a predetermined gap (for example, 19 mm) substantially parallel to the gaming board 1. . The launched game ball is displaced by ascending or descending a space formed by the front surface of the game board 1 and the back surface of the glass plate 46. More specifically, the launched game ball moves up and displaces the launch passage 15 formed by the front surface of the game board 1, the back surface of the glass plate 46, the outer rail set 2a, and the inner rail set 2b, thereby preventing the ball from returning. When it comes into contact with the 30 ball return prevention pieces 40, it is guided to the ball return prevention member 30 that is rotated (oscillated) by the contact and enters the game area 3. The ball return prevention piece 40 of the present embodiment is configured with a gap that allows swinging between the front surface of the game board 1 and the back surface of the glass plate 46.
Next, the structure of the ball return preventing member 30 which is a main part of the present invention will be described with reference to FIG.

FIG. 2 is a schematic perspective view illustrating the configuration of the ball return preventing member 30 of the present embodiment.
As shown in FIG. 2B, the ball return preventing member 30 includes a ball return preventing piece 40, a ball return preventing piece holding body 34 for holding the ball return preventing piece 40, and the ball return preventing member 30 in the game area. 3 is provided with a support shaft 35 for pivotally supporting at a predetermined position 3 and a weight body 36 for adjusting the posture of the supported ball return preventing member 30 to a predetermined position.

As shown in FIG. 2A, the ball return prevention piece 40 is integrally formed with a ball return prevention piece base body 40e formed in a substantially vertically long rectangular and thin plate shape, and a lower end portion of the ball return prevention piece base body 40e. And a substantially columnar retaining portion 40d formed with a diameter larger than the thickness of the ball return preventing piece base body 40e.
A thread catching slit portion 40c is provided on the upper part of the ball return preventing piece base 40e in the vertical direction at a substantially central position in the horizontal direction in the figure. The width dimension of the yarn catching slit portion 40c, that is, the gap between the left and right portions of the ball return preventing piece base 40e divided into the left and right by the yarn catching slit portion 40c, is the operation yarn 21 used for the threaded ball goto (see FIG. 3). It is preferable that the clearance be smaller than the diameter of the thread catching slit 40c so that when the operation thread 21 faces the thread catching slit portion 40c, the operation thread 21 is tightly fitted by a predetermined pressure to firmly catch the operation thread 21. The yarn catching slit portion 40c is a catching portion of the present invention.
Further, on the upper part of the ball return preventing piece base body 40e, a left thread guiding section 40a and a right thread guiding section 40b formed in a downward curved shape illustrated from the left and right upper direction toward the thread catching slit section 40c are provided. The left thread guiding part 40a and the right thread guiding part 40b are means for guiding the operation thread 21 to the thread catching slit part 40c, and are the guiding parts of the present invention.

  When the ball with thread is launched, the game ball contacts (collises) with the back side of the ball return prevention piece 40 having the above-described configuration, and rotates the ball return prevention member 30 to enter the game area 3 to enter the game ball. The operation thread as the string body fixed to the ball is pulled by the game ball entering the game area 3 while being pulled by the back side of the ball return prevention piece 40 and the upper end portion of the ball return prevention piece 40, that is, the left thread guiding portion 40a, the right It is configured to be supported at any location of a substantially vertically long rectangular upper short side portion including the yarn guiding portion 40b and the yarn catching slit portion 40c. Also in the following examples and modifications, the upper end portion of the ball return prevention piece that supports the operation thread as the string body suggests one of the above-described substantially vertically long rectangular upper short side portions. It is. However, it is not necessarily required to be a substantially vertically long rectangular upper short side portion, and any other configuration may be used as long as it supports a string body pulled by the game ball after the ball with thread passes through it. good.

The ball return prevention piece holding body 34 holds the ball return prevention piece 40, and is arranged close to the first holding body 32 disposed near the back side of the glass plate 46 and the surface side of the game board 1. The second holding body 33.
The first holding body 32 is formed of a columnar body having an irregular cross section as shown in the drawing, and a groove portion 32b into which a ball return preventing piece 40 can be inserted is provided on the right rear surface side, and a support shaft 35 to be described later is further inserted. The support shaft hole 32a, the weight insertion hole 32f into which the weight body 36 is inserted, and the screw insertion holes 32c and 32d through which the attachment screws 37a and 37b are inserted are provided. In addition, a holding member abutting surface portion 32e is provided at the lower right portion.
Similarly to the first holding body 32, the second holding body 33 is formed of a columnar body having an irregular cross section. A groove portion 33b into which the ball return preventing piece 40 can be inserted is provided on the left surface side, a shaft hole 33a into which the shaft 35 is inserted, and screw mounting holes 33c, 33d into which mounting screws 37a and 37b are screwed. Is provided. In addition, a holding member contact surface portion 33e is provided at the lower right.

With reference to Fig.2 (a), the assembly | attachment method of the ball | bowl return prevention member 30 mentioned above is demonstrated.
First, the ball return preventing piece 40 is fitted into the groove portions 32b and 33b, the first holding body 32 and the second holding body 33 are brought into contact with each other, and the attachment screws 37a and 37b are inserted into the screw insertion holes 32c and 32d. The ball return prevention piece 40 is configured not to come off from the ball return prevention piece holding body 34 by being screwed into the mounting holes 33c and 33d. Next, the support shaft 35 is inserted into the support shaft holes 32a and 33a and fixed by a known technique at a predetermined position shown in the figure. At this time, the game board 1 side protrudes slightly longer than the glass plate 46 side. It is supposed to be fixed. The assembly is completed by fitting the weight body 36 into the weight insertion hole 32f. The ball return prevention member 30 of this embodiment assembled in this way is attached to the surface side of the game board 1 as shown in FIG. With reference to FIG. 3, the attachment state of the ball return prevention member 30 of a present Example is demonstrated.

The ball return prevention member 30 of this embodiment can be swung in a state where the ball return prevention piece 40 is orthogonal to the game board 1 by inserting the support shaft 35 substantially perpendicular to the surface side of the game board 1. Is pivotally supported. The configuration of the inner rail set 2b will be described, and the attachment state of the ball return prevention member 30 will be described in detail.
The inner rail set 2b includes an inner rail set mounting board 23 for integrally mounting the rail body and the like on the upper end portion of the curved rail body shown in the drawing. The inner rail set attachment board 23 is attached to the game board 1 by cooperating with other attachment mechanisms (not shown) by screwing the inner rail set 2b with screws or the like. The inner rail set mounting substrate 23 has an inverted C-shaped cross section and is formed at a predetermined height toward the front in the figure (a height at which the ball return preventing member 30 can be incorporated). As shown). Further, as described above, the inner rail set mounting substrate 23 is provided with a hole portion into which the support shaft 35 can be inserted, and supports the rear end portion of the support shaft 35. Further, although omitted in FIG. 3 for the sake of convenience, a housing cover (see FIG. 1) provided with a hole portion that contacts the hatched surface portion of the housing member 24 and supports the front end portion of the support shaft 35 is provided. Thus, the front and rear end portions of the support shaft 35 are configured to be orthogonally supported with respect to the game board 1.
The ball return preventing member 30 in FIG. 3 is not affected by the game ball, that is, in a standby posture. The weight body 36 is provided at an obliquely lower left position of the support shaft 35. Further, the holding member abutting surface portions 32e and 33e described above are provided in the lower right portion of the ball return preventing member 30 (see FIG. 4), and the housing member abutting against the inner wall portion of the housing member 24 that abuts on this is provided. A surface portion 24a is provided.

As a result, the ball return preventing member 30 that can swing around the support shaft 35 has the weight 36 that is substantially the same as the support shaft 35 from the unstable state in which the weight body 36 is located obliquely to the left of the support shaft 35. A rotational force is generated by trying to move to a stable state located directly below, but this is restricted by the holding member contact surface portions 32e and 33e coming into contact with the housing member contact surface portion 24a, and FIG. Further, it is configured to prevent further rotation in the counterclockwise direction from the standby posture shown in FIG. In the standby posture, even if the ball return prevention member 30 rotates in the clockwise direction (see FIG. 4) due to the launched game ball 21 colliding (interfering) with the ball return prevention piece 40, the operation of the above configuration is performed. Thus, the apparatus is configured to promptly return to the standby posture. In addition, the gap between the upper end of the ball return prevention piece 40 and the outer rail set 2a in the standby posture is set to be smaller than the diameter size of the game ball 20, thereby preventing the ball return from the game area 3. Yes.
The ball return preventing member 30 of the present embodiment has the above-described configuration, and the operation thereof will be described next.

First, the basic action of preventing the ball from returning will be described with reference to FIGS. 3 and 4 are schematic explanatory views for explaining the action of the ball return preventing member 30 on the firing ball 20.
As shown in FIG. 3, the ball return prevention member 30 is located in the standby posture, and in this state, the ball return prevention member 30 runs backward from the game area 3 from the gap between the upper end of the ball return prevention piece 40 and the outer rail set 2 a. The game ball that tries to return to the launch passage 15 again can be blocked. This configuration acts so that the game ball entering the game area 3 from the launch passage 15 always comes into contact with the ball return prevention piece 40.
At this time, when the game ball 20 to which the operation thread 21 used for the threaded ball goto is fixed is launched, the ball return prevention member disposed at the boundary with the game area 3 is moved up the launch passage 15. It progresses toward 30 ball return prevention pieces 40.
When the proceeding game ball 20 contacts the ball return prevention piece 40 and further proceeds, the state shown in FIG. 4 is obtained. The ball return prevention piece 40 is pressurized by the game ball 20, and the ball return prevention member 30 is rotationally displaced about the support shaft 35 in the clockwise direction by the pressure. When the gap between the upper end portion of the ball return preventing piece 40 and the outer rail set 2a is large enough to allow the game ball 20 to pass through due to the rotational displacement, the game ball 20 is released from the interference of the ball return preventing piece 40, and the game area Enter 3 The ball return prevention member 30 is configured to allow and guide the launched game ball 20 when it enters the game area 3. However, even if the game ball 20 is released from the interference of the ball return prevention piece 40, the ball return prevention piece 40 maintains the interference (contact) with the operation thread 21, and as an effect of the present invention, the operation thread 21 is maintained. Acts to capture.
In this embodiment, the ball return prevention piece 40 is configured so as not to contact the upper end portion of the housing member 24 even if it rotates most in the clockwise direction by the action of the game ball 20 that has been launched.
When the entry of the game ball 20 into the game area 3 is completed, the ball return prevention member 30 is quickly rotated in the counterclockwise direction by the action of the weight body 36 that is eccentrically provided with respect to the support shaft 35. Return to the original standby position. At this time, the operation thread 21 fixed to the game ball 20 is caught on the upper end portion of the ball return prevention piece 40 with a high probability.

Next, a more detailed operation of the present embodiment will be described with reference to FIGS. 5 and 7 are schematic explanatory views for explaining the action of the ball return preventing member 30 on the operation thread 21, and FIGS. 6 and 8 are schematic side views for explaining the action of the ball return preventing member 30 on the operation thread 21. FIG.
FIG. 5 shows a state immediately after the game ball 20 to which the operation thread 21 relating to the threaded ball goto is fixed is launched into the game area 3. At this time, the fraudster sticks to the game ball 20 of the operation thread 21 so that the game ball 20 arriving at the game area 3 is repeatedly and continuously awarded to the normal operation winning opening 16 to obtain an unfair gain. By pushing and pulling the part on the opposite side of the marked part, it tries to place it at an arbitrary position. At this time, the operation thread 21 to be operated is stretched around the game nail 4 or the like with the upper end in the figure of the ball return preventing piece 40 at the top, and is in a substantially mountain-shaped state. Furthermore, with the upper end in the figure of the ball return prevention piece 40 at the top, the side fixed to the game ball 20 (right side in the figure) is subjected to a downward load corresponding to the mass of the game ball 20, and the opposite side (in the figure) On the left side), a load having approximately the same size as the load is applied downward, so that the balance is maintained. When a cheating person pushes and pulls the operation thread 21, the operation threads 21 on both the left and right sides move forward and backward as shown by the arrows in the drawing. At the same time, the ball return preventing piece 40 is also swung, and the apex is displaced as shown in the illustrated arc arrow.

In FIG. 6, the figure which looked at the said state from the side was shown. In the drawing, the cross section of the operation thread 21 is shown in a circular shape on the upper end portion of the ball return preventing piece 40, that is, the upper part of the left thread guiding portion 40 a related to the ball return preventing member 30. In addition, although the state which has the operation thread | yarn 21 in the upper part of the left thread guide part 40a was shown, the following effect | action is the same also in this point, even if it is the right thread guide part 40b.
As described above, the above-described downward load is applied to both sides of the operation thread 21 with the cross-sectional position of the illustrated operation thread 21 as an apex, and the downward load corresponding to these loads is applied to the apex. As described above, the left thread guiding portion 40a and the right thread guiding portion 40b are formed in a downward curved shape from the upper left and right sides, respectively, toward the thread catching slit portion 40c. As a result, the left thread guiding part 40a and the right thread guiding part 40b as the guiding part of the present invention act to guide the operation thread 21 downward, that is, to the thread catching slit part 40c. Further, the above-described load is applied to the apex position of the operation thread 21 on the upper part of the left thread guiding portion 40a. When the operation thread 21 is advanced and retracted in this state, the left thread guiding section 40a is more effective. Thus, the operation yarn 21 can be guided to the yarn catching slit portion 40c. As described above, when the operation thread 21 is guided to the thread catching slit section 40c by the left thread guiding section 40a or the right thread guiding section 40b, the state shown in FIGS.

  In FIG. 7, the operation thread 21 is guided to the thread catching slit section 40c by the left thread guiding section 40a or the right thread guiding section 40b and is captured by the thread catching slit section 40c, so that the operation secured to the game ball 20 is performed. The state where the apex position of the thread 21 is displaced downward from the position shown in FIG. 5 is shown. When the operation thread 21 is captured by the thread capturing slit portion 40c, it becomes extremely difficult for an unauthorized person to operate the operation thread 21. That is, the length from the position captured by the thread capturing slit 40c to the right game ball 20 in the figure does not change, while the left part is bent when the cheating person pushes, and when it is pulled, the fixed position is limited. The above cannot be drawn.

In FIG. 8, the figure which looked at the said state from the side was shown. When the operation thread 21 shown in FIG. 6 is guided along the downward curve of the left thread guiding section 40a and faces the thread capturing slit section 40c, the thread capturing slit section 40c is operated by the above-described downward load. It acts to capture 21 firmly.
As a result, when the game ball 20 to which the operation thread 21 is fixed is fired to the ball-attached ball goto, the ball return prevention piece 40 of the ball return prevention member 30 of the present embodiment causes the game ball 20 to move into the game area. The game ball 20 is allowed to enter the game area 3. In addition, the returning ball path from the game area 3 to the launch passage 15 is prevented. Further, the operation thread 21 fixed to the game ball 20 that has entered the game area 3 is supported by the left thread guiding section 40a or the right thread guiding section 40b, and the left thread guiding section 40a or the right thread guiding section 40b. The operation yarn 21 is guided to the yarn catching slit portion 40c, and then the operation yarn 21 is firmly caught (held) by the yarn catching slit portion 40c, thereby making the operation of the operation yarn 21 extremely difficult.

In addition, the ball return prevention piece 40 of a present Example becomes a structure by which the left thread guide part 40a and the right thread guide part 40b are formed in a downward curve shape toward the thread | yarn catching slit part 40c. More specifically, the left thread guiding portion 40a and the right thread guiding portion 40b converge at the upper end portion of the yarn catching slit portion 40c, starting from the left and right upper corner portions of the ball return prevention piece base body 40e (see FIG. 2). It is formed in a line-symmetric downward curve. By being configured in this way, the operation yarn 21 can be always guided to the yarn catching slit portion 40c regardless of the position of the upper end portion of the ball return prevention piece base 40e. In addition, since the curve is formed from the left and right upper corners, the left and right upper corners do not become acute angles, and sufficient safety can be ensured even in assembly work of a pachinko machine, maintenance work in a hall, and the like.
[Example 2]

The configuration of the second embodiment according to the present invention will be described with reference to FIG. FIG. 9 is a schematic perspective view illustrating the configuration of the ball return preventing member 130 of the present embodiment.
As shown in FIG. 9B, the ball return preventing member 130 includes a ball return preventing piece 140, a ball return preventing piece holding body 134 for holding the ball return preventing piece 140, and the ball return preventing member 130 in the game area. 3 is provided with a support shaft 135 for pivotally supporting at a predetermined position 3 and a weight 136 for adjusting the posture of the supported ball return preventing member 130 to a predetermined position. The ball return prevention piece 140 includes a first ball return prevention piece 141 and a second ball return prevention piece 142. A thread catching trough 143 is provided at a substantially V-shaped lowermost position formed when the first ball return prevention piece 141 and the second ball return prevention piece 142 are assembled to overlap each other before and after the drawing. Yes.

  As shown in FIG. 9A, the first ball return prevention piece 141 includes a first ball return prevention piece base 141a formed in a substantially trapezoidal shape and a thin plate shape, and a lower end of the first ball return prevention piece base 141a. A first retaining portion 141d that is integrally formed with the front portion and is erected toward the front of the figure, and a slanted side that slopes downward from the right upper end of the first ball return prevention piece base 141a to the left and obliquely downward. A substantially thin plate extending from the formed right side of the first thread guiding portion 141b and the first ball return preventing piece base 141a to the right side of the drawing, that is, toward the game board 1 (see FIG. 11). And a ball return preventing piece extending portion 141e formed in a substantially rectangular shape. Further, a first cutting edge portion 141c for cutting the operation yarn is formed at a substantially center of the first yarn guiding portion 141b so as to incline downward from the illustrated back surface toward the illustrated surface.

  The second ball return prevention piece 142 is formed integrally with a second ball return prevention piece base body 142a formed in a substantially trapezoidal shape and a thin plate shape, and a lower end portion of the second ball return prevention piece base body 142a, and is illustrated in the rear side. A second retaining portion 142d erected toward the bottom, and a second thread guiding portion 142b that is formed in a hypotenuse that slopes downwardly and obliquely downward from the left upper end of the second ball return prevention piece base 142a. From the upper left side of the second ball return prevention piece base 142a, the rear side of the figure, that is, in the direction attached to the game board 1, from the game area 3 to the launch passage 15 (see FIG. 10). And a ball return prevention piece upright portion 142e formed in a substantially thin plate shape and a substantially triangular shape. Further, a second cutting edge portion 142c for cutting the operation yarn is formed at a substantially center of the second yarn guiding portion 142b so as to be inclined downward from the front surface to the back surface.

As described above, the ball return preventing piece holding body 134 holds the ball return preventing piece 140 including the first ball return preventing piece 141 and the second ball return preventing piece 142, and the back surface of the glass plate 146. The first holding body 132 is arranged near the side, and the second holding body 133 is arranged near the surface side of the game board 1.
The first holding body 132 is formed of a columnar body having an irregular cross section as shown in the drawing, and a groove 132b into which a ball return preventing piece 140 can be inserted is provided on the right back surface side, and a support shaft 135 described later is further inserted. The support shaft hole 132a, the weight insertion hole 132f into which the weight body 136 is inserted, and the screw insertion holes 132c and 132d through which the mounting screws 137a and 137b are inserted are provided. In addition, a holding member contact surface portion 132e is provided at the lower right.
Similarly to the first holding body 132, the second holding body 133 is formed of a columnar body having an irregular cross section. A groove portion 133b into which the ball return preventing piece 140 can be inserted is provided on the left surface side, a shaft hole 133a into which the shaft 135 is inserted, and screw mounting holes 133c, 133d into which the mounting screws 137a and 137b are screwed. Is provided. In addition, a holder contact surface portion 133e is provided at the lower right.

With reference to Fig.9 (a), the assembly | attachment method of the ball | bowl return prevention member 130 mentioned above is demonstrated.
First, that is, as shown in FIG. 9B, the ball return prevention piece 140 formed by superimposing the first ball return prevention piece 141 and the second ball return prevention piece 142 on the front and back is provided in the grooves 132b and 133b. The first holding body 132 and the second holding body 133 are brought into contact with each other, the mounting screws 137a and 137b are inserted into the screw insertion holes 132c and 132d, and are screwed into the screw mounting holes 133c and 133d. The ball return prevention piece 140 is configured not to come off from the ball return prevention piece holder 134. Next, the support shaft 135 is inserted into the support shaft holes 132a and 133a and fixed by a known technique at a predetermined position shown in the figure. At this time, the game board 1 side protrudes and is fixed slightly longer than the glass plate 146 side. It is supposed to be. Then, the assembly is completed by fitting the weight 136 into the weight insertion hole 132f. The ball return preventing member 130 of this embodiment assembled in this way is attached to the surface side of the game board 1 as shown in FIGS. 10 and 11. With reference to FIG.10 and FIG.11, the attachment state of the ball return prevention member 130 of a present Example is demonstrated.

The ball return prevention member 130 of this embodiment can swing in a state where the ball return prevention piece 140 is orthogonal to the game board 1 by inserting the support shaft 135 substantially perpendicular to the surface side of the game board 1. Is pivotally supported. Since the configuration of the inner rail set 2b and the configuration and operation of the housing member 24 and the ball return prevention piece holder 134 are the same as those of the first embodiment, description thereof will be omitted.
When the ball return preventing member 130 of this embodiment is assembled on the surface side of the game board 1, the ball return preventing piece extending portion 141e described above does not come into contact, and the ball return preventing member 130 swings. In order to prevent interference, the extended portion recess 145 having a predetermined depth formed in a curved elliptical shape with the support shaft 135 as the center is provided.
The ball return prevention piece extending portion 141e of the present embodiment is provided between the ball return prevention piece 140 and the surface side of the game board 1 (game area 3) when the ball return prevention member 130 is attached to the game board 1. The upper part of the formed game board side gap 148 is covered.
In addition, as described above, the first sphere return prevention piece 141 and the second sphere return prevention piece 142 are assembled at the lowest position in a substantially V shape, which is formed when the first sphere return prevention piece 142 and the second sphere return prevention piece 142 are assembled to overlap each other before and after the drawing. A thread catching trough 143 is provided on the extended line of the first thread guiding part 141b and the second thread guiding part 142b, more specifically at the intersection of the first cutting edge part 141c and the second cutting blade part 142c. The first yarn guiding portion 141b and the second yarn guiding portion 142b are the guiding portions of the present invention that guide the operation yarn toward the yarn catching valley portion 143, and the yarn catching valley portion 143 is the catching portion of the present invention. The thread catching valley 143 of the present embodiment includes the first cutting edge part 141c and the second cutting edge part 142c on the front and back, so that the operation thread guided by the first thread guiding part 141b and the second thread guiding part 142b. Is not only firmly captured but also acts to cut the operation thread.
Furthermore, as described above, the ball return prevention piece standing portion 142e erected from the upper left side of the second ball return prevention piece base 142a is left of the second ball return prevention piece 142 as shown in FIG. In other words, the movement of the operation thread 21a to the glass plate side gap 149 is restricted.
The ball return preventing member 130 of the present embodiment has the above-described configuration, and the operation thereof will be described with reference to FIGS. 10 to 13.

10 and 12 are schematic explanatory views for explaining the action of the ball return prevention member 130 on the operation threads 21a and 21b. FIGS. 11 and 13 show the action of the ball return prevention member 130 on the operation threads 21a and 21b. It is a schematic side view to explain.
FIG. 10 shows a state immediately after the game ball 20 to which the operation threads 21 a and 21 b related to the threaded ball goto are fixed is launched into the game area 3. At this time, in order to obtain an unreasonable gain by unreasonably gaining the game ball 20 that has reached the game area 3 by repeatedly and continuously winning the game ball 20 that has reached the game area 3, the game ball 20 of the operation threads 21a and 21b is obtained. By trying to push and pull the part on the opposite side of the part fixed to, it tries to place it at any position. At this time, the operation threads 21a and 21b to be operated are stretched around the game nail 4 or the like with the substantially upper end portion of the ball return prevention piece 140 in the figure as the apex, and are in a substantially chevron state. Further, with the upper end of the ball return preventing piece 140 in the figure as the apex, the side fixed to the game ball 20 (right side in the figure) is subjected to a downward load corresponding to the mass of the game ball 20, and the opposite side (shown in the figure). On the left side), a load having approximately the same size as the load is applied downward, so that the balance is maintained. When an unauthorized person pushes and pulls the operation threads 21a and 21b, the left and right operation threads 21a and 21b move forward and backward as shown by the arrows in the drawing. At the same time, the ball return prevention piece 140 also swings, and the apex is displaced in an arc shape (not shown).

In FIG. 11, the figure which looked at the said state from the side was shown. The figure shows two upper ends of the ball return prevention piece 140, that is, the upper part of the ball return prevention piece extending portion 141e and the right side of the ball return prevention piece standing portion 142e, that is, the glass plate side gap, related to the ball return prevention member 130. On the opposite side of 149, the cross sections of the operation threads 21b and 21a are shown in a circle.
In the figure, the upper portion of the ball return preventing piece extending portion 141e is formed substantially horizontally. As will be described later, the ball return preventing piece extending portion 141e is not supported by or dropped from the ball return preventing piece 140, and an operation thread that tries to get into the game board side gap 148 or an operation thread that is close to the game board 1 is used. It is sufficient if it has at least a function to support, but further from the right side (game board 1 side) to the left side (glass plate 146 side) so that the supported operating thread 21b can be guided to the first thread guiding portion 141b. It is still preferable to have a configuration inclined downward. The ball return preventing piece extending portion 141e configured as described above can reliably support the operation thread 21b to enter the game board side gap 148 or the operation thread 21b at a position close to the surface of the game board 1, Furthermore, the connected operation thread 21b is configured to be guided to the first thread guiding section 141b by being connected to the first thread guiding section 141b.
In addition, with respect to the operation thread 21a positioned above the second thread guide section 142b, the ball return prevention piece upright section 142e prevents the operation thread 21a from dropping into the glass plate side gap 149 and the operation thread 21a. Is guided to the second yarn guiding portion 142b.
The first yarn guiding portion 141b and the second yarn guiding portion 142b function to converge and guide the operation yarns 21a and 21b toward the yarn catching valley portion 143. Further, the above-described downward load is applied to both sides of the operation yarns 21a and 21b with the cross-sectional positions of the illustrated operation yarns 21a and 21b as apexes, and downward loads corresponding to these loads are applied to the apexes. . For this reason, the first yarn guiding portion 141b and the second yarn guiding portion 142b can more effectively guide the operation yarns 21a and 21b toward the yarn catching valley portion 143, respectively. As described above, when the operation yarns 21a and 21b are guided to the yarn catching valley portion 143 by the first yarn guiding portion 141b or the second yarn guiding portion 142b, the state shown in FIGS.

In FIG. 12, the operation yarns 21a and 21b are guided to the yarn catching trough 143 by the first yarn guiding portion 141b or the second yarn guiding portion 142b and caught by the yarn catching trough 143. The apex positions of the operation threads 21a and 21b that have been fixed are displaced downward from the positions shown in FIG. 10 and are further cut.
If the operation yarns 21a and 21b are captured by the yarn catch valley 143, it becomes extremely difficult for an unauthorized person to operate the operation yarns 21a and 21b. That is, the length from the position captured by the thread capturing valley 143 to the right game ball 20 in the figure does not change, while the left part is bent when the cheating person pushes, and when it is pulled, it is limited to a certain position. The above cannot be drawn.
The yarn catch valley 143 is originally a valley formed by intersecting different linear portions of the first yarn guiding portion 141b and the second yarn guiding portion 142b. In this way, it is theoretically configured so that the deeper the trough portion is, the narrower it becomes, and the operation yarns 21a and 21b can be captured more reliably and the operation can be made extremely difficult.
Furthermore, since the first cutting edge portion 141c and the second cutting edge portion 142c are provided on the front and back of the straight line portion of the present embodiment that intersects to form the valley portion, it is captured more strongly. Accordingly, the operation yarns 21a and 21b can be cut, and can be completely disabled by cutting.

FIG. 13 shows a view of the state from the side. The operation yarns 21a and 21b shown in FIG. 11 are guided to the yarn catch valley 143 provided with the first cutting blade portion 141c and the second cutting blade portion 142c on the front and back, are firmly caught, and further, the load directed downward is The disconnected state is shown.
Thereby, when the game ball 20 to which the operation threads 21a and 21b are fixed is fired to the ball-attached ball goto, the ball return prevention piece 140 of the ball return prevention member 130 of the present embodiment causes the game ball 20 to move. Guiding toward the game area 3 and allowing the game ball 20 to enter the game area 3 is allowed. In addition, the returning ball path from the game area 3 to the launch passage 15 is prevented. Further, the operation threads 21a and 21b fixed to the game ball 20 that has entered the game area 3 are supported by the first thread guide section 141b or the second thread guide section 142b, and the first thread guide section 141b or the second thread The yarn guide trough 142b guides to the yarn catch trough 143, and the yarn catch trough 143 firmly catches (holds) the operation yarns 21a and 21b, thereby making the operation yarns 21a and 21b difficult to operate. Further, the first cutting blade portion 141c and the second cutting blade portion 142c are configured to be completely inoperable by cutting the operation threads 21a and 21b.
[Example 3]

The configuration and operation of the third embodiment according to the present invention will be described with reference to FIGS. 14 and 15. 14 and 15 are schematic explanatory views for explaining the configuration of the ball return preventing member 30 provided with the abnormality detecting means of this embodiment. Note that the basic configuration of the ball return preventing member is the same as that of the first embodiment described above, and the description thereof will be omitted.
The ball return prevention member 30 according to the present embodiment contacts the ball return prevention piece 40 when the launched game ball 20 enters the game area 3 when the ball return prevention member 30 is positioned in the above-described standby posture. , The angle at which a gap through which the game ball 20 can pass, that is, the normal displacement angle can be swung (rotated).
In addition, a detection switch 400 is provided on the upper portion of the housing member 24 as detection means of the present invention. The detection switch 400 is configured not to be in the detection state when it is in the above-described standby posture or when the ball return prevention member 30 shown in FIG. 14 is swung by the normal displacement angle.
Furthermore, as shown in FIG. 15, the ball return preventing member 30 of the present embodiment is configured to swing (rotate) to an abnormal displacement angle larger than the normal displacement angle described above. The abnormal displacement angle is an angle that does not occur due to the collision action of the normally launched game ball 20. In other words, in the ball with thread, the game ball 20 to which the operation thread 21 is fixed enters the game area 3, and the operation thread 21 is supported by the upper end of the ball return prevention piece 40. Is operated by pushing and pulling the operation thread 21, the game ball 20 is rotationally displaced to an abnormal displacement angle by its own weight. The ball return prevention piece 40 swinging and displaced to the abnormal displacement angle is detected by depressing the detection switch 400, as shown in the figure, and thereby the rotation displacement angle of the ball return prevention piece 40 is not normally generated. It is possible to detect that it is in a state. The detection switch 400 is configured to be able to transmit an abnormality detection signal when it is detected that the rocking displacement has occurred to the abnormal displacement angle.

In the present embodiment, it is provided with notifying means for notifying that it has been displaced to an abnormal displacement angle by receiving an abnormality detection signal transmitted from the detection switch 400. As the notification means, notification is performed by sound from a speaker, a light emission mode by a light emitting member such as a lamp, a drive mode by a movable accessory, an image display mode by an effect symbol display device 6 composed of an LCD panel, and the like. It is configured.
By notifying that the displacement at the abnormal displacement angle is currently being detected as the notification content, it is possible to stop the threaded ball goto in advance or midway. In addition, if a fraudulent person does not leave after fraudulent activity by notifying the fact that the displacement to the abnormal displacement angle has been detected within the predetermined time in the past, Will be a deterrent against fraud.
Although the detection means of the present embodiment has been shown to detect when the detection body reaches a predetermined displacement, the detection means is not limited to this, and other methods such as an optical detection means may be adopted.
You may implement the structure of a present Example in combination with the Example 1, 2 mentioned above, the other Example mentioned later, a modification, etc.
[Modification 1]

Several modifications of the above-described embodiment of the present invention will be described with reference to FIGS. FIG. 16 is a schematic explanatory view for explaining a ball return preventing member of Modifications 1 to 5, and FIG. 17 is a schematic explanatory view for explaining a ball return prevention member of Modifications 6 to 9. In any of the modifications, for example, a state corresponding to FIG. 6 of the first embodiment described above, that is, a state attached to the game board will be described with reference to the right side. Therefore, the side where the protruding amount of the support shaft is large is the game board side, and the small side is the glass plate side.
Modification 1 is shown in FIG. The ball return prevention piece 201 of this modification is formed of a thin plate having a substantially vertically long rectangular shape. The ball return prevention piece 201 includes a left sphere return prevention unit 202 and a right sphere return prevention unit 203. The left sphere return prevention unit 202 includes a left thread guide part 205 that is inclined downward toward the lower right, and the right sphere return prevention part 203 includes a right thread guide part 206 that is inclined downward toward the lower left. A thread catching valley part 204 formed in a substantially V shape capable of catching an operation thread is provided at a position where the guiding part 205 and the right thread guiding part 206 intersect.
The ball return prevention piece 201 of the present modification is formed so as to incline downward toward the yarn catching trough portion 204 as the catching portion when the operation yarn is supported by the left thread guiding portion 205 or the right thread guiding portion 206. The left thread guiding part 205 and the right thread guiding part 206 as the guiding part guide the operation thread to the thread catching valley part 204, and the thread catching trough part 204 formed at a sharp acute angle downward is caught. To do. As a result, it is possible to make it difficult to operate the operation yarn with a simple configuration.
[Modification 2]

Modification 2 is shown in FIG. The ball return prevention piece 211 of the present modification is formed of a thin plate having a substantially vertically long rectangular shape. The ball return prevention piece 211 includes a left sphere return prevention unit 212 and a right sphere return prevention unit 213. The left sphere return prevention part 212 includes a left thread guiding part 215 that slopes downward from the left upper part to the lower right, and the right sphere return prevention part 213 slopes downward from the right upper part to the lower left. A right thread guiding part 216 is provided, and a thread catching valley part 214 formed in a substantially V shape capable of catching an operation thread is provided at a position where the left thread guiding part 215 and the right thread guiding part 216 intersect.
The ball return prevention piece 211 of this modification is not provided with a horizontal portion at the upper end portion, and is configured by the left thread guiding portion 215 or the right thread guiding portion 216. For this reason, when the operation thread is supported, the operation thread is captured by the left thread guiding section 215 and the right thread guiding section 216 as the guiding sections formed to be inclined downward toward the thread capturing valley section 214 as the capturing section. The yarn catching trough 214 formed at a sharp downward angle is guided to the trough portion 214 and the guided operation yarn is captured at a sharp downward angle. Thereby, it becomes possible to make it difficult to operate the operation thread supported at any position of the upper end portion of the ball return prevention piece 211 with a simple configuration.
[Modification 3]

Modification 3 is shown in FIG. The ball return prevention piece 221 of the present modification is formed of a thin plate having a substantially vertically long rectangular shape. The ball return prevention piece 221 includes a left sphere return prevention unit 222 and a right sphere return prevention unit 223. The left sphere return prevention unit 222 includes a left first yarn guiding portion 225a that gently descends downward from the upper left portion of the left side and a lower left portion of the first left yarn guiding portion 225a and further downwards to the lower right. A right second thread guiding section 225b that steeply inclines, and the right ball return prevention section 223 includes a right first thread guiding section 226a that gently descends downward from the uppermost right portion toward the lower left, and the right first A right second yarn guiding portion 226b that further steeply descends from the lower end portion of the yarn guiding portion 226a toward the lower left, and at a position where the left second yarn guiding portion 225b and the right second yarn guiding portion 226b intersect. Is provided with a thread catching trough 224 formed in a substantially V shape capable of catching an operation thread.
The ball return prevention piece 221 of the present modification does not include a horizontal portion at the upper end, and the left first yarn guiding portion 225a, the left second yarn guiding portion 225b, the right first yarn guiding portion 226a, and the right second yarn. It is comprised by the guidance | induction part 226b. For this reason, when the operation yarn is supported, the left first yarn guiding portion 225a, the left second yarn guiding portion 225b, and the right second guiding portion that are formed to be inclined downward toward the yarn catching valley portion 224 as the catching portion. The operating yarn is guided to the yarn catching valley 224 by the 1st yarn guiding portion 226a and the right second yarn guiding portion 226b, and the guided catching yarn is caught by the yarn catching trough 224 formed at a downward acute angle. . Thereby, it becomes possible to make the operation of the operation thread supported at any position of the upper end portion of the ball return prevention piece 221 difficult with a simple configuration. In addition, the upper left end of the left sphere return prevention part 222 and the right sphere return prevention part 223 are provided with a left first thread guiding part 225a and a right first thread guiding part 226a that are formed in a slanted shape, thereby preventing a ball return. The upper end corners on both the left and right sides of the piece 221 are not sharp, and it is difficult for an operator to be injured during assembly work of a pachinko machine, maintenance work in a hall, etc., and safety can be maintained.
[Modification 4]

Modification 4 is shown in FIG. The ball return prevention piece 231 of this modification is formed of a thin plate having a substantially vertically long rectangular shape. The ball return prevention piece 231 includes a left sphere return prevention unit 232 and a right sphere return prevention unit 233. The left sphere return prevention portion 232 has a left first yarn guiding portion 235a formed in a downward curve from the uppermost left portion toward the lower right, and further lower right from the lower end portion of the left first yarn guiding portion 235a. A right second thread guiding portion 236a that is formed in a downward curve from the uppermost right portion to the lower left. A right second yarn guiding portion 236b that further inclines downward from the lower end of the right first yarn guiding portion 236a toward the lower left, and includes a left second yarn guiding portion 235b and a right second yarn guiding portion 236b. A thread catching trough 234 formed in a substantially V shape capable of catching the operation thread is provided at the intersecting position.
The ball return prevention piece 231 of this modification does not have a horizontal portion at the upper end, and the left first yarn guiding portion 235a, the left second yarn guiding portion 235b, the right first yarn guiding portion 236a, and the right second yarn. It is comprised by the guidance | induction part 236b. For this reason, when the operation yarn is supported, the left first yarn guiding portion 235a, the left second yarn guiding portion 235b, and the right second guiding portion that are formed to be inclined downward toward the yarn catching valley portion 234 as the catching portion. The operation yarn is guided to the yarn catching valley 234 by the 1st yarn guiding portion 236a and the right second yarn guiding portion 236b, and the guided yarn is caught by the yarn catching valley 234 formed at a downward acute angle. . Thereby, it becomes possible to make the operation of the operation thread supported at any position of the upper end portion of the ball return prevention piece 231 difficult with a simple configuration. Further, by providing a left first thread guiding part 235a and a right first thread guiding part 236a formed in a downward curve at the upper ends of the left sphere return preventing part 232 and the right sphere return preventing part 233, it is possible to prevent the ball from returning. The upper end corners on both the left and right sides of the piece 231 are not sharp, and it is difficult for the operator to be injured during the assembly work of the pachinko machine, the maintenance work in the hall, and the safety can be maintained. In addition, the guiding portion can be configured by a curve and a straight line in contact with the curve, whereby there is no corner in the guiding path, and the operation yarn can be smoothly guided.
[Modification 5]

Modification 5 is shown in FIG. The ball return prevention piece 241 of this modification is formed of a thin plate having a substantially vertically long rectangular shape. The ball return prevention piece 241 includes a left sphere return prevention unit 242, a right sphere return prevention unit 243, and a middle sphere return prevention unit 244. The left sphere return preventing portion 242 includes a left first yarn guiding portion 246a formed in a downward curve from the uppermost portion on the left side toward the lower right, and further to the lower right from the lower end portion of the left first yarn guiding portion 246a. A right second thread guiding portion 247a that is formed in a downward curve from the uppermost portion on the right side toward the lower left. A right second thread guiding portion 247b that is further inclined downward and downward from the lower end portion of the right first thread guiding portion 247a, and the sphere return prevention portion 244 is further lowered toward the left and right sides. A middle first yarn guiding portion 248a formed in a curved shape, and a middle second yarn guiding portion 248b formed by being further inclined downward from the lower left end of the middle first yarn guiding portion 248a toward the lower left, From the lower right end of the middle first yarn guiding portion 248a A middle second yarn guiding portion 248c formed so as to be inclined downward, and a position where the left second yarn guiding portion 246b and the middle first yarn guiding portion 248b intersect with each other, and a right second yarn guiding portion At a position where 247b and the middle second thread guiding portion 248c intersect, a left thread catching valley 245a and a right thread catching valley 245b formed in a substantially V shape capable of catching the operation thread are provided.
The ball return prevention piece 241 according to the present modification does not include a horizontal portion at the upper end portion, and includes the above-described various guide portions. For this reason, when the operation yarn is supported, the left thread catching valley 245a as the catching part, the left first thread guiding part 246a as the guiding part formed to be inclined downward toward the right thread catching valley 245b, An operation thread is provided by the two-thread guide section 246b, the right first thread guide section 247a, the right second thread guide section 247b, the middle first thread guide section 248a, the middle second thread guide section 248b, and the middle second thread guide section 248c. Are guided to the left thread catch valley 245a and the right thread catch valley 245b, and the guided thread is caught by the left thread catch valley 245a and the right thread catch valley 245b formed at a sharp downward angle. Thereby, it becomes possible to make the operation of the operation thread difficult even if it is an operation thread supported at any position of the upper end portion of the ball return prevention piece 241 with a simple configuration. In addition, the left first thread guiding part 246a, the right first thread guiding part 247a, which are formed in a downward curve shape at the upper ends of the left sphere return preventing part 242, the right sphere return preventing part 243, and the middle sphere return preventing part 244, By providing the middle first thread guiding portion 248a, the upper left corner of the left, middle, and right of the ball return prevention piece 241 is not sharpened, and work is performed during assembly work of the pachinko machine or maintenance work in the hall. It is difficult for people to get hurt and maintain safety.
Further, by providing the middle ball return prevention unit 244, it is possible to catch the operation thread without deteriorating the function of the ball return prevention member that guides the game ball that is launched and enters the game area and determines the trajectory. can do. In other words, by providing the middle ball return prevention portion 244 at the center in the left-right direction of the ball return prevention piece that is highly likely to come into contact with the launched game ball, it acts on the game ball for a longer period from the start of contact. It is possible to continue.
[Modification 6]

Modification 6 is shown in FIG. The ball return prevention piece 251 of this modification is composed of a first ball return prevention piece 251a and a second ball return prevention piece 251b, both of which are formed of a thin plate having a substantially vertically long rectangular shape. The first sphere return prevention piece 251 a includes a left sphere return prevention part 252 and a right sphere return prevention part 253. The second ball return prevention piece 251b includes a middle ball return prevention portion 254. The left sphere return prevention portion 252 has a left first yarn guiding portion 256a formed in a downward curve from the left uppermost portion toward the lower right, and further lower right from the lower end portion of the left first yarn guiding portion 256a. A right second thread guiding portion 257a that is formed in a downward curve from the uppermost right portion to the lower left. And a right second yarn guiding portion 257b that is further inclined downward from the lower end portion of the right first yarn guiding portion 257a toward the lower left. Further, the middle ball return preventing portion 254 has a middle first yarn guiding portion 258a formed in a downward curved shape toward the left and right sides, and further toward the lower left from the lower left end portion of the middle first yarn guiding portion 258a. A middle second yarn guiding portion 258b formed to be inclined downward, and a middle second yarn guiding portion 258c formed to be inclined downward further from the right lower end portion of the middle first yarn guiding portion 258a; Is provided. Further, operation yarns are respectively placed at a position where the left second yarn guiding portion 256b and the middle first yarn guiding portion 258b intersect and a position where the right second yarn guiding portion 257b and the middle second yarn guiding portion 258c intersect. A left thread catching valley part 255a and a right thread catching valley part 255b formed in a substantially V-shape that can be caught are provided.
The ball return preventing piece 251 of this modification is not provided with a horizontal portion at the upper end portion, and is configured by the various guiding portions described above. For this reason, when the operation yarn is supported, the left first yarn guiding portion 256a as the guiding portion formed by being inclined downward toward the left yarn catching trough portion 255a and the right yarn catching valley portion 255b as the catching portion, the left first An operation yarn is obtained by the two-thread guide section 256b, the right first thread guide section 257a, the right second thread guide section 257b, the middle first thread guide section 258a, the middle second thread guide section 258b, and the middle second thread guide section 258c. Are guided to the left thread catching trough part 255a and the right thread catching trough part 255b, and the left thread catching trough part 255a and the right thread catching trough part 255b formed at the acute angle downward are caught. Thereby, it becomes possible to make it difficult to operate the operation thread supported at any position on the upper end of the ball return prevention piece 251 with a simple configuration. In addition, the left first thread guiding section 256a, the right first thread guiding section 257a, which are formed in a downward curve shape at the upper ends of the left sphere return preventing section 252, the right sphere return preventing section 253, and the middle sphere return preventing section 254, By providing the middle first thread guiding portion 258a, the upper left corner of the ball return prevention piece 251 does not become sharp, and work is performed during assembly work of the pachinko machine or maintenance work in the hall. It is difficult for people to get hurt and maintain safety.
Further, by providing the middle ball return prevention unit 254, it is possible to catch the operation thread without deteriorating the function of the ball return prevention member that guides the game ball that is launched and enters the game area and determines the trajectory. can do. In other words, by providing the middle ball return prevention unit 254 at the center in the left-right direction of the ball return prevention piece that is highly likely to come into contact with the launched game ball, it acts on the game ball for a longer period from the start of contact. It is possible to continue.
Further, the ball return prevention piece 251 is configured by superposing the first ball return prevention piece 251a and the second ball return prevention piece 251b, so that the left thread catching valley portion 255a and the right thread catching valley portion 255b are respectively 2 This is formed by intersecting the straight portions of the kind, and thus, no rounded portion or flat portion is formed at the V-shaped lowest position, so that the operation yarn is easily caught firmly.
[Modification 7]

Modification 7 is shown in FIG. The ball return prevention piece 261 of this modification has substantially the same configuration as that of Modification 5 described above. Explain the differences, and omit others. The catching portion of the present modification is formed in a slit shape having a predetermined length from the substantially V-shaped lowermost portion formed at two locations on the left and right sides of the drawing, respectively, and the yarn catching slit portion 265a and the yarn catching slit. Part 265b.
The ball return prevention piece 261 of the present modification is not provided with a horizontal portion at the upper end portion, and is constituted by various illustrated guide portions. For this reason, when the operation yarn is supported, the yarn is captured by the yarn catching slit portion 265a and the yarn catching slit 265a as the catching portion, and the guide portion formed by being inclined downward toward the yarn catching slit portion 265b. The yarn catching slit portion 265a and the yarn catching slit portion 265b, which are guided to the portion 265b and formed in the downward slit, catch the guided operation yarn. The slit is preferably smaller than this diameter with respect to the diameter of the operation yarn, and an extremely small clearance is set in consideration of the material of the operation yarn. Further, the clearance may decrease as it goes from the upper part to the lower part of the slit. Thereby, it becomes possible to make it difficult to operate the operation thread supported at any position on the upper end of the ball return prevention piece 251 with a simple configuration. Further, as an operation is performed by applying an unreasonable load to the operation yarn in order to escape from the state in which the operation becomes difficult, the operation thread is captured more firmly and the operation can be made more difficult.
[Modification 8]

Modification 8 is shown in FIG. The ball return prevention piece 271 of this modification is composed of a first ball return prevention piece 271a and a second ball return prevention piece 271b, both of which are formed of a thin plate having a substantially vertically long rectangular shape. Since the basic configuration and operation of this modification are the same as those of Modification 6 described above, only the differences will be described and the others will be omitted.
The left thread catch valley 275a and the right thread catch valley 275b are each formed by intersecting two types of straight portions, and the left second cutting edge 276a, right second cutting edge 276b, left A first cutting edge portion 277a and a right first cutting edge portion 277b were provided.
With this configuration, since the rounded portion and the flat portion are not formed at the lowest position of the V-shape, the operation yarn is easily caught firmly and further added to the operation yarn. When pressed against the left thread catch valley 275a and the right thread catch valley 275b, the operation thread is cut, and the operation with the operation thread from the outside of the pachinko machine becomes completely impossible.
[Modification 9]

Modification 9 is shown in FIG. The ball return prevention piece 281 of this modification is composed of a first ball return prevention piece 281a and a second ball return prevention piece 281b, both of which are formed of a thin plate having a substantially vertically long rectangular shape. Since the basic configuration and operation of this modification are the same as those of Modification 8 described above, only the differences will be described and the others will be omitted.
At the upper left part of the left sphere return prevention portion of the first sphere return prevention piece 281a, it is erected in the direction of the back surface, that is, the direction of the launch passage when the ball return prevention member of this modification is attached to the game board. The ball return prevention piece upright part 283 is provided as a dropout prevention part.
Further, in the upper right portion of the right ball return prevention portion of the first ball return prevention piece 281a, toward the right side of the drawing, that is, toward the game board side when the ball return prevention member of this modification is attached to the game board, A ball return preventing piece extending portion 282 is provided as an extending portion to be extended.
With this configuration, in addition to the effect of the modified example 8, the ball return preventing piece upright portion 283 prevents the operating yarn from falling off, thereby allowing the operating yarn to be captured or cut more reliably. Further, the ball return preventing piece extending portion 282 prevents the operation thread from entering the gap between the ball return preventing piece and other components (for example, a game board or a glass plate), and more reliably captures the operation thread. Alternatively, cutting is possible.
[Example 4]

Next, Embodiment 4 according to the present invention will be described with reference to FIG. FIG. 18 is a schematic three-view diagram illustrating the configuration of the fourth embodiment. The basic configuration of the ball return prevention member of the present embodiment is the same as that of the other embodiments and modifications described above. Therefore, the difference, that is, the configuration and operation of the ball return prevention piece 340 will be described. Will be omitted.
The ball return prevention member 330 according to the present embodiment includes a ball return prevention piece 340 formed in a thin plate shape having a substantially vertically long rectangular shape, and a ball return prevention piece holding body 334 that holds the ball return prevention piece 340. The basic configuration of the ball return preventing piece holder 334 is the same as in the other embodiments described above.
The ball return prevention piece 340 is composed of a single thin plate, and as shown in FIG. 18B, the upper end portion thereof has a first ball return prevention piece 342 on the left side and a second ball return prevention on the right side. A piece 343 is provided with a third ball return preventing piece 345 at the center. The first ball return prevention piece 342, the second ball return prevention piece 343, and the third ball return prevention piece 345 prevent the game ball from reversing from the game area, and the emitted game ball to the game area. It guides and adjusts the trajectory. These ball return prevention pieces contact and act on the game balls launched on the back surface side, respectively, the first ball return prevention surface portion 342a, the second ball return prevention surface portion 343a, and the third ball return prevention surface portion 345a. Is provided.
A left thread guiding piece 346 and a right thread guiding piece 347 are provided in the gap between the two positions of the ball return preventing pieces provided at these three positions. The group of yarn guiding pieces of this embodiment is provided in a so-called staggered pattern with a slight inclination with respect to the group of ball return prevention pieces (see FIG. 18A). The clearance between the yarn guiding piece and the ball return preventing piece of this embodiment is set to be extremely small. A left thread guiding surface part 346a and a right thread guiding surface part 347a are provided on the back surfaces of the left thread guiding piece 346 and the right thread guiding piece 347, respectively. The left thread guiding surface portion 346a and the right thread guiding surface portion 347a are surface portions that guide the operating yarn to a capturing portion described later when the operating yarn is supported, and are guiding portions according to the present invention. Note that the left thread guide piece 346 and the right thread guide piece 347 are configured to be slightly twisted (see FIG. 18C) so that the supported operation thread can be easily guided. Specifically, the left thread guide surface portion 346a is inclined to the left first thread catching slit portion 348a, and the right thread guide surface portion 347a is sloped to the right first thread catching slit portion 349a, thereby guiding the operation yarn. It is configured easily.
The capturing unit in the present embodiment will be described. The catching portion is a slit portion in which the first ball return prevention piece 342, the second ball return prevention piece 343, and the third ball return prevention piece 345, and the left thread guide piece 346 and the right thread guide piece 347 overlap with each other. A first yarn catching slit portion 348a, a left second yarn catching slit portion 348b, a right first yarn catching slit portion 349a, and a right second yarn catching slit portion 349b are provided. The gaps between these slit portions are smaller than the diameter of the operation yarn, and are formed to have a size capable of firmly capturing the operation yarn.

Next, the operation of this embodiment will be described. In the standby posture shown in FIG. 18A, when a game ball launched from the left side of the ball return prevention piece 340 approaches the game ball, the first ball return prevention surface portion 342a, the second ball return prevention surface portion 343a, The third ball return prevention surface portion 345a receives the ball, and the ball return prevention member 330 swings (rotates) in the clockwise direction by the collision force of the game ball to guide the game ball to the game area.
When the operation thread fixed to the game ball guided to the game area is supported by the left thread guiding surface part 346a or the right thread guiding surface part 347a, the left thread guiding surface part 346a is moved by the action of the inclined surface of the guiding surface part. The right thread guide surface 347a is guided to the right first thread catching slit 349a and the left first thread catching slit 348a. Further, depending on the state of the operation thread, the thread may naturally enter the left second thread catching slit part 348b and the right second thread catching slit part 349b without being guided to the left thread guiding surface part 346a or the right thread guiding surface part 347a. is there.
In this way, when the operating thread reaches the upper end of one of the thread catching slits, the operating thread is sandwiched between the thread catching slits by the downward load applied to the operating thread, and the cross section of the operating thread is compressed and deformed. Thus, it is possible to make the operability extremely difficult by firmly capturing.
As mentioned above, although Example 4 was demonstrated, in addition to the structure of such a ball return prevention piece, you may provide an extension part and a drop-off prevention part. Moreover, you may provide the detection means and alerting | reporting means which were mentioned above.

As mentioned above, although the Example concerning this invention has been described, it is not limited to this, unless it deviates from the technical idea of this invention.
For example, in the above-described embodiment, an example in which the extension part is provided on one side of the ball return prevention piece and the drop prevention part is provided on the other side, but only one of the extension part and the drop prevention part is provided. Things can be used. With this configuration, the tendency of the trajectory of the game ball varies depending on the type of the ball game machine. Therefore, it is economical to provide a necessary and suitable configuration individually, and the ball return prevention piece swings. Therefore, the operation of the operation thread (string body) can be made difficult or impossible without deteriorating the function of preventing the original ball return.

  In the above-described embodiment, an example in which only one extended portion is provided on one of the ball return prevention pieces and only the drop-off prevention portion is provided on the other side is provided. But it ’s okay. By configuring in this way, a wider range of operation thread (string body) is captured, and this is reliably guided to the guiding portion, which further contributes to the prevention of threaded ball goto. The operation thread (with high probability) It becomes possible to make the operation of the string) difficult or impossible.

  Further, in the above-described embodiment, an example in which the extension part is provided on the game board side of the ball return prevention piece and the drop prevention part is provided on the glass plate side is shown, but the deployment positions of the extension part and the drop prevention part are shown. It may be replaced. By configuring in this way, it becomes possible to cope with the deviation of the trajectory depending on the type of the ball game machine, and flexibly respond to the tendency of the trajectory, thereby making the operation of the operation thread (string body) difficult or impossible. It becomes possible.

  Moreover, the material which forms a ball return prevention piece can be selected suitably. You may comprise with metals containing iron, such as resin with high abrasion resistance, ceramics, and spring steel. Moreover, you may use a raw material with a high friction coefficient for a capture part. Further, the surface roughness may be formed rough in order to generate a high frictional force. It is preferable to use metal or fine ceramic for the location that becomes the cutting edge, but it depends on the rigidity of the string body, so if it can demonstrate sufficient performance to cut the string body, this It is not limited to.

  Moreover, although the ball return preventing piece is held by the first holding body and the second holding body and the ball return preventing member including the weight body and the holding body contact surface portion is exemplified, the present invention is not limited to this. Any other configuration may be used as long as it is a ball return preventing member having a function of guiding and allowing the launched game ball from the launch path to the game area and preventing it from going back to the launch path. The feature of the present invention lies in that the ball return preventing member makes it difficult to operate the string body by firmly capturing the string body in addition to the conventional function. Other configurations are also possible.

  In addition, in the above-described embodiments and modifications, there is an example in which the ball return prevention piece is provided with only one capture portion, but a plurality of locations may be provided. In the case where a plurality of capturing parts are provided, it is preferable to arrange the ball return preventing pieces so that the width dimension of the ball return preventing piece is divided at equal intervals by the capturing part. By comprising in this way, the string body supported in any position of the upper end part of a ball | bowl return prevention piece can be caught about equally.

  In addition, when a plurality of capturing parts are provided at an equal distance, it is preferable that only an even number (location) is disposed rather than an odd number (location). By comprising in this way, the ball | bowl return prevention part provided by being pinched | interposed by two capture | acquisition parts will be arrange | positioned in the center position of the width dimension of a ball | bowl return prevention piece. By comprising in this way, it will be provided with a ball | bowl return prevention part in the part with high possibility that the launched game ball contacts, and the function which contacts the launched game ball and guides to a game area will be reduced. Therefore, the operability of the string can be made difficult.

Further, in the above-described embodiments and modifications, the slit portion formed with a gap that can be firmly captured by sandwiching the string body is exemplified as the capturing portion of the present invention, but the string body can be firmly captured. Any other method may be used as long as it exhibits a function.
For example, it may be formed so that the slit portion is not orthogonal to the ball return prevention piece. Referring to the ball return prevention piece 40 of Example 1 in FIG. 2, the thread catching slit portion 40c is not cut perpendicular to the plane of the ball return prevention piece base 40e, that is, the surface of the game board. Inclination is made at a predetermined angle with respect to a straight line parallel to the line. As a result, when the ball game machine is viewed from above, the exit and the entrance of the cut are formed so as to be shifted in the front-rear direction.
By doing in this way, when the string body captured by the thread capturing slit portion 40c reaches the ball return prevention piece base body 40e from the firing passage side, it is refracted at a predetermined angle at the thickness portion of the ball return prevention piece base body 40e. Later, it extends to the fixed game ball on the game area side. That is, by bending the string body on the front and back of the ball return preventing piece, it is possible to make it impossible to easily perform the push-pull operation due to friction.
Moreover, since the higher the degree of refraction, the more firmly captured, the operation of the ball return prevention piece can be made extremely difficult with a simple configuration by appropriately setting the thickness of the ball return prevention piece.

Further, at the position where the left thread guiding part (guidance part) 40a and the right thread guiding part (guidance part) 40b converge, that is, at the upper end of the thread catching slit part 40c, it is orthogonal to the plane of the ball return prevention piece base body 40e. In this case, the cut may be formed at a predetermined angle by changing from orthogonal to non-orthogonal as it goes downward. By configuring in this way, when the guide portion of the ball return prevention piece has guided the string body in the threaded ball goto, it is easily captured by the slit portion orthogonal to the plane of the ball return prevention piece base 40e, As the slit portion is lowered by the downward pressure of the game ball or the like, the slit portion is non-orthogonal to the plane of the ball return preventing piece base 40e, so that it is possible to capture firmly. Thus, since the transition to the non-orthogonal slits proceeds and completes without any obstacles, the string body can be more securely captured.

20: Game ball 21: Operation thread (string)
21a: Operation thread (string)
21b: Operation thread (string)
30: Ball return prevention member 40: Ball return prevention piece 40a: Left thread guide part (guide part)
40b: Right thread guide part (guide part)
40c: Yarn catching slit (capture part)
130: Ball return prevention member 140: Ball return prevention piece 141b: First thread guide portion (guide portion)
141c: First cutting edge part (cutting edge part)
141e: Ball return prevention piece extension part (extension part)
142b: Second thread guiding portion (guiding portion)
142c: Second cutting edge part (cutting edge part)
142e: Ball return prevention piece upright part (drop-off prevention part)
143: Yarn catch trough (capture part)
145: Extension portion recess (recess)
201: Ball return prevention piece 204: Yarn catch trough (capture part)
205: Left thread guide (guide)
206: Right thread guide (guide)
211: Ball return prevention piece 214: Yarn catch trough (capture part)
215: Left thread guide (guide)
216: Right thread guide (guide)
221: Ball return prevention piece 224: Yarn catch trough (capture part)
225a: Left first thread guide (guide)
225b: Left second thread guide part (guide part)
226a: Right first thread guiding portion (guiding portion)
226b: Right second thread guiding portion (guidance portion)
231: Ball return prevention piece 234: Yarn catch trough (capture part)
235a: Left first thread guide part (guide part)
235b: Left second thread guide part (guide part)
236a: Right first thread guide (guide)
236b: Right second thread guiding portion (guiding portion)
241: Ball return prevention piece 245a: Left thread catch valley (capture part)
245b: Right thread catch valley (capture part)
246a: Left first thread guide (guide)
246b: Left second thread guide part (guide part)
247a: Right first thread guide (guide)
247b: Right second thread guiding portion (guidance portion)
248a: Middle first thread guide part (guide part)
248b: Middle second thread guiding portion (leading portion)
248c: Middle second thread guide part (guide part)
251: Ball return prevention piece 255a: Left thread catch valley (capture part)
255b: Right thread catch valley (capture part)
256a: Left first thread guide (guide)
256b: Left second thread guide portion (guide portion)
257a: Right first thread guide (guide)
257b: Right second thread guiding portion (leading portion)
258a: Middle first thread guiding portion (guiding portion)
258b: Middle second thread guiding portion (leading portion)
258c: Middle second thread guiding portion (leading portion)
261: Ball return prevention piece 265a: Yarn catching slit (trapping part)
265b: Yarn catching slit (trapping part)
271: Ball return prevention piece 275a: Left thread catch valley (capture part)
275b: Right thread catch valley (capture part)
276a: Left second cutting edge (cutting edge)
276b: Right second cutting edge (cutting edge)
277a: Left first cutting edge (cutting edge)
277b: Right first cutting edge (cutting edge)
281: Ball return prevention piece 282: Ball return prevention piece extension part (extension part)
283: Ball rising prevention piece standing part (falling prevention part)
330: Ball return prevention member 340: Ball return prevention piece 346a: Left thread guide surface portion (guide portion)
347a: Right thread guide surface part (guide part)
348a: Left first yarn catching slit portion (trapping portion)
348b: Left second thread catching slit (capturing part)
349a: Right first yarn catching slit portion (trapping portion)
349b: Right second thread catching slit (capturing part)
400: Detection switch (detection means)

Claims (5)

A game area where a game ball flows down provided on the game board, and a ball that allows the game ball that has been fired to enter the game area from the launch path and prevents backflow from the game area to the launch path In a ball game machine equipped with a return prevention member,
The ball return prevention member is
A ball return prevention piece that is in contact with the launched game ball when entering the game area, or when trying to flow backward from the game area to the launch passage, and is formed in a substantially rectangular shape ;
Provided at a position below the ball return prevention piece, the ball return prevention member can swing from a substantially upright standby position before the game ball entering the game area contacts to a tilted position after the contact. A support shaft for supporting the shaft ,
The ball return prevention piece
A catching part that catches a string body that is fixed to a game ball that has entered the game area and that can operate the game ball, and an upper end part of the ball return prevention piece that guides the string body to the catching part. A guiding section;
When the ball return prevention member is in the standby posture, the string body is dropped from the guide portion by being erected in the direction from the game area to the launch passage at the upper side and one side end of the ball return prevention piece. A bullet ball game machine provided with a drop-off prevention part for preventing the occurrence of damage.
A game area where a game ball flows down provided on the game board, and a ball that allows the game ball that has been fired to enter the game area from the launch path and prevents backflow from the game area to the launch path In a ball game machine equipped with a return prevention member,
The ball return prevention member is
A ball return prevention piece that comes into contact when a launched game ball enters the game area, or when trying to flow backward from the game area to the launch passage,
The ball return prevention piece
A capture unit that captures a string body that is fixed to a game ball that has entered the game area and can operate the game ball; and a guide unit that guides the string body to the capture unit;
An extending portion that extends from the guiding portion and guides the string body to the guiding portion;
2. The ball game machine according to claim 1, wherein the game board includes a recess for avoiding contact with the extended portion .
A game area where a game ball flows down provided on the game board, and a ball that allows the game ball that has been fired to enter the game area from the launch path and prevents backflow from the game area to the launch path In a ball game machine equipped with a return prevention member,
The ball return prevention member is
A ball return prevention piece that comes into contact when a launched game ball enters the game area, or when trying to flow backward from the game area to the launch passage,
The ball return prevention piece
A capture unit that captures a string body that is fixed to a game ball that has entered the game area and can operate the game ball; and a guide unit that guides the string body to the capture unit;
A drop-off prevention portion for preventing the string body from falling off the ball return prevention piece;
An extending portion that extends from the guiding portion and guides the string body to the guiding portion;
2. The ball game machine according to claim 1, wherein the game board includes a recess for avoiding contact with the extended portion.
In the bullet ball game machine according to claim 1 to claim 3,
The capturing part is
A bullet ball game machine comprising a cutting edge portion capable of cutting the captured string .
In the bullet ball game machine according to claim 1 to claim 4,
The ball return prevention piece is
A normal displacement angle due to contact when the launched game ball enters the game area and an abnormal displacement angle larger than the normal displacement angle can be displaced,
An anomaly detection means capable of detecting displacement at an anomalous displacement angle;
A bullet ball game machine comprising: notification means for notifying that the detection means has detected that it has been displaced to an abnormal displacement angle .

Images