JP2007075646A - Ball tank of pachinko game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable the formation of a window hole larger enough to make a board box face it, also simplify the work of molding or mounting rear parts of the mechanism board and furthermore, prevent clogging or jamming with balls within a ball tank, reducing the installing area of the mechanism board. <P>SOLUTION: A prize ball put-out device 23 is formed integrally into a ball tank 8 and the ball tank 8 with the top surface opened has a path part 19 with a concave-shaped cross section built being inclined along the longitudinal direction of the bottom part 18 while a ball outlet 20 is provided at the downstream end part of the path part 19. The prize ball put-out device 23 comprises a lead screw 24 disposed at the ball outlet 20 and a drive motor 25 for rotating the lead screw 24. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a ball tank for storing pachinko balls replenished from a replenishment path above a pachinko machine.

  Normally, a pachinko machine is equipped with a synthetic resin mechanism plate that can be opened and closed on the back side of the game board. As is well known, the mechanism plate has a ball tank and a drop provided at the bottom of the ball tank. A tank rail that is connected to the mouth and located below the tank rail, and a prize ball dispensing device that is connected to the lower end of the tank rail via a curve rail are mounted at predetermined positions. A hole is opened, and a board box containing a circuit board for controlling the game state is disposed in the window hole.

  By the way, in recent pachinko machines, a large circuit board is required with the advancement and complexity of game contents, and therefore the board box for storing the circuit board is also enlarged. It is becoming difficult to attach to the window hole portion of the mechanism plate. Such a situation can be easily solved by enlarging the window hole of the mechanism plate. However, the mechanism plate is equipped with the back parts such as the above-mentioned ball tank, tank rail, prize ball dispensing device, etc. In addition, the size of the window hole is limited, and it is impossible to enlarge the window hole.

  Therefore, the present invention has been made to solve the above-mentioned problems. By providing a passage portion at the bottom and integrating a prize ball dispensing device into the ball outlet of the passage portion, a conventional tank rail is not required. It is not necessary to provide a premium ball dispensing device at a predetermined position, and the size of the window hole can be made to meet the request, and the back part of the mechanism plate can be simplified to simplify the molding and assembling work. In addition, it is an object of the present invention to provide a ball tank for a pachinko machine that prevents the ball from being jammed or clogged in the ball tank.

  In order to achieve such an object, the ball tank of the pachinko machine according to the present invention is formed by integrating a premium ball dispensing device. The upper surface of the spherical tank is open, and a passage portion having a concave cross section along the longitudinal direction is provided at the bottom portion in an inclined manner, and a spherical outlet is provided at the downstream end of the passage portion. The prize ball dispensing device includes a lead screw that is arranged at the ball outlet and that discharges pachinko balls that flow down the passage portion one by one from the ball tank, and a drive motor that rotates the lead screw. The drive motor is electrically controlled so as to be driven every time a winning ball is generated, and the pachinko balls paid out from the ball tank are guided to the hitting ball supply tray on the front surface of the pachinko machine through the discharge passage. As described above, since the passage portion is provided at the bottom of the ball tank and the prize ball dispensing device is integrally incorporated at the ball outlet of the passage portion, the conventional tank rail and the prize ball dispensing device are not required. The holes can be sized to meet the requirements, and the back parts of the mechanism plate are simplified, and the molding and assembling work thereof can be simplified.

  Moreover, it is good also as a structure which arrange | positioned the ball scrap bar of the required length in which a base end part adheres to the approximate center of the front end surface of a lead screw along the inside of a channel | path part. Therefore, the ball scraper bar rotates together with the lead screw, and the pachinko sphere that overlaps in and adjacent to the passage portion is rotated, thereby causing ball splintering of these pachinko balls, and the ball biting in the passage portion and the adjacent portion thereof. Occurrence of a clogged ball state can be prevented.

  As is apparent from the above description, in the present invention, the ball tank is formed with a passage portion for aligning the pachinko balls and guiding them to the discharge passage, and the premium ball dispensing device is integrally incorporated. This eliminates the need for tank rails, ball leveling, etc., unlike conventional pachinko machines, and further eliminates the need to provide a premium ball dispensing device at a predetermined position, thereby reducing the tank installation area relative to the mechanism plate. As a result, a large window hole for facing the substrate box can be formed. Furthermore, by attaching the ball tank, the prize ball dispensing device can be attached at the same time, and this has the effect of simplifying the molding and attachment work of the back part attached to the back surface of the mechanism plate.

  Also, the downstream end of the passage portion is provided at a position where the bottom portion of the required length is left, a ball outlet is provided at the downstream end portion, a lead screw is disposed below the bottom portion, and a notch having a required width is provided at the bottom portion. Since the opening is provided, the pachinko sphere that contacts the outer peripheral surface of the lead screw rotates through the notch opening, thereby preventing the pachinko sphere that is stored in the sphere tank from being bitten or clogged. Can do.

  Embodiments of a ball tank of a pachinko machine according to the present invention will be described below with reference to the drawings. FIG. 1 is a rear view of a pachinko machine equipped with a ball tank according to the present invention, in which 1 is a front frame of the pachinko machine, and 2 is a game board that is detachably attached to the rear surface of the front frame 1. A winning ball collecting cover 3 is disposed on the back surface of the game board 2, and a substrate box 4 is mounted on the back surface of the cover 3. The board box 4 accommodates a circuit board for driving and controlling operations such as a start winning opening, a variable display device, and a large winning opening provided on the surface of the game board 2.

  Reference numeral 5 denotes a synthetic resin mechanism plate mounted on the back surface of the game board 2 so as to be opened and closed. The mechanism plate 5 has a plate-like portion 6 opposed to the back surface of the game board 2, and a window hole 7 for opening the substrate box 4 is opened at substantially the center of the plate-like portion 6. The ball tank 8 according to the present invention is fixed to the upper surface of the window hole 7 and the back surface of the plate-like portion 6. Further, on the back surface of the plate-like portion 6 located on the right side of the window hole 7, a pachinko stored in a ball passage 8 and a discharge passage 9 communicating with a hitting ball supply tray (not shown) mounted on the front surface of the pachinko machine. A guide rail 10 for guiding the sphere to the discharge passage 9 is provided. In addition, the plate-like portion 6 below the window hole 7 has various back parts such as a winning ball discharge processing device 12 that discharges the winning balls collected in the winning ball collecting portion 11 one by one and an out ball discharge basket 13. Is provided.

  2 is a perspective view of a ball tank 8 according to the present invention, FIG. 3 is an exploded perspective view thereof, FIG. 4 is a plan view thereof, FIG. 5 is a cross-sectional view taken along line WW of FIG. X-ray sectional views are shown respectively. Next, a specific structure of the ball tank 8 according to the present invention will be described with reference to FIGS. The spherical tank 8 is configured as a rectangular box 8 a having an upper surface opened by a rear side wall 14 in contact with the mechanism plate 5, a front side wall 15 facing the rear side wall 14, a left side wall 16, a right side wall 17 and a bottom part 18. A passage portion 19 having a concave cross section is formed in the center of the bottom portion 18 of the rectangular box 8a in the length direction. Further, the bottom portion 18 of the rectangular box 8a excluding the passage portion 19 is not inclined in the length direction, and is inclined toward the passage portion 19 in a direction perpendicular to the length direction.

  The passage portion 19 is formed in a downwardly inclined shape so as to gradually become deeper from the left side wall 16 to the right side wall 17 of the rectangular box 8a, and its downstream end portion extends from the right side wall 17 to a bottom portion 18a having a required length. It is formed as a spherical outlet 20 provided at the remaining position and opened. As shown in FIG. 5, the upper end of the guide rail 10 is connected to the ball outlet 20. Further, a partition wall 21 is provided on the inner bottom surface of the passage portion 19 from the substantially central portion to the downstream end portion so that the pachinko balls flow toward the ball outlet 20 while being aligned in two rows by the partition wall 21. The ball passages 19a and 19b are formed in the upper part. As shown in FIG. 5, the partition wall 21 is formed so as to gradually increase toward the downstream end, and the height of the downstream end is formed to be slightly lower than the diameter of the pachinko sphere. Reference numeral 22 denotes a reinforcing rib.

  A premium ball payout device 23 is integrated into the ball tank 8. The prize ball payout device 23 is electrically controlled and operates each time the winning balls are processed one by one by the winning ball discharge processing device 12 so as to pay out a predetermined amount of pachinko balls in the ball tank 8. The paid-out pachinko balls are discharged to the hitting ball supply tray on the front surface of the pachinko machine through the discharge passage 9. That is, the prize ball dispensing device 23 includes a lead screw 24 and a drive motor 25 that rotates the lead screw 24 as shown in FIG.

As shown in FIGS. 4 and 5, the lead screw 24 is arranged outside the ball outlet 20 of the passage portion 19 and below the bottom portion 18 a so that the tip surface faces the passage portion 19. Thereby, as shown in FIG. 6, spaces S and S through which the pachinko balls slide through are formed between the lead screw 24 and both the ball passages 19a and 19b. Further, on the outer peripheral surface of the cylindrical body 26, a ridge 27 that receives the most advanced pachinko ball in the passage portion 19 is formed in a spiral shape . The drive motor 25 is fixed to a protruding piece 28 extending downward from the right side wall 17, and a drive shaft 29 is fitted into the shaft hole 31 at the center of the cylindrical body 26 through a notch recess 30 at the lower end edge. ing. The protrusion 27 of the lead screw 24 is discharged to the guide rail 10 while the leading pachinko balls of both ball passages 19a and 19b enter and are held between the protrusions 27 by one rotation of the lead screw 24. The spiral shape is selected as follows.

  Thus, pachinko balls replenished from a replenishment path (not shown) of the pachinko machine (not shown) are stored in the ball tank 8 configured as described above, but these pachinko balls are retained in the upper surface of the bottom portion 18 and the passage portion 19. To do. Therefore, when a winning ball detector (not shown) of the winning ball discharge processing device 12 detects a winning ball, the drive motor 25 starts rotating based on the detection signal, and at the same time, the lead screw 24 rotates. The lead screw 24 rotates a predetermined number of times, so that, among the pachinko balls B and B flowing down the both ball passages 19a and 19b, the most advanced pachinko balls B and B enter between the protrusions 27 on the outer periphery of the cylindrical body 26 and are held. While passing through the spaces S, S, they are alternately carried outward, and thereafter, a predetermined number of pachinko balls B are discharged to the guide rail 10 in the same manner. The pachinko balls B discharged to these guide rails 10 are paid out to the hitting ball supply tray via the discharge passage 9.

  As described above, the ball tank 8 according to the present invention integrally forms the passage portion 19 for aligning and guiding the pachinko balls B stored in the ball tank 8 to the discharge passage 9, and the premium ball dispensing device 23. Because it is integrated and formed, tank rails and ball leveling etc. are not required for aligning pachinko balls and guiding them to the prize ball dispensing device, as in the conventional pachinko machine. Moreover, it is not necessary to provide the prize ball dispensing device at a predetermined position, and accordingly, as shown in FIG. 1, the installation area on the upper and right sides of the window hole 7 with respect to the mechanism plate 5 can be reduced, and the board box 4 The window hole 7 for making it face can be formed large. Further, the formation of the passage portion 19 increases the volume of the ball tank 8. Furthermore, since the prize ball dispensing device 23 is also attached at the same time by attaching the ball tank 8, it is possible to simplify the molding of the back part of the mechanism plate and the attaching operation.

  7 to 9 are provided with a notch opening 32 having a lateral width enough to allow one or two pachinko balls to ride on and contact the outer peripheral surface of the lead screw 24 along the axial direction on the bottom 18a above the lead screw 24. It is a thing. Therefore, as shown in FIG. 9, the pachinko ball B of the bottom portion 18a enters the notch opening 32 and is in contact with the outer peripheral surface of the cylindrical body 26 of the lead screw 24, and the lead screw 24 is used to pay out a predetermined amount of pachinko balls. Is rotated, the pachinko ball B in contact with the outer peripheral surface of the cylindrical body 26 is rotated. Along with this, other pachinko balls B that come in contact with and stack with the pachinko balls B also rotate and cause ball breakage, so that it is possible to prevent the occurrence of ball biting and ball clogging in the ball tank 8. Can do.

  10 to 12, one end is fixed to substantially the center of the front end surface of the cylindrical body 26 of the lead screw 24 in the passage portion 19, specifically, along the partition wall 21, and the other end portion is supported by the bearing portion 34. A round bar-shaped ball scrap bar 33 of a predetermined length that is pivotally supported is disposed horizontally. Thereby, the ball scrap bar 33 rotates with the rotation of the lead screw 24. Accordingly, as shown in FIG. 12, the pachinko sphere B that overlaps with and adjacent to the passage portion 19 that contacts one end of the ball scraper bar 33 and the pachinko sphere B that touches the entire outer peripheral surface of the ball scraper bar 33. Rotating the ball, the ball is broken, the pachinko ball B is rectified and flows down in the ball passages 19a and 19b, and the normal pachinko ball B can be discharged and the ball breaker bar 33 Ball scraps in the ball tank 8 can be widely spread over the entire length. Therefore, the biting and clogging of the ball at the passage portion 19 and the adjacent portion thereof are prevented. This is because when the lead screw 24 is not sufficient, that is, when the pachinko ball B is stored in the ball tank 8 or when the pachinko ball B remains only in the passage portion 19, the pachinko ball B remains on the upper surface of the bottom 18 a above the lead screw 24. This is effective when the sphere B is not on. It is desirable that the upstream side of the bearing portion 34 be sharpened so as not to obstruct pachinko balls B and B flowing down the ball passages 19a and 19b.

  Further, such a ball scrap bar is not repelled only by the pachinko ball B that is in contact with the rotation, and thus the load is not applied to the drive motor 25. For example, the pachinko ball B is discharged at a high speed. Suitable for

  Further, the outer peripheral surface of the ball scraper bar 33 is provided with a spiral ridge having a small height and sending the pachinko balls B, B of the ball passages 19a, 19b to the ball outlet 20 side. Also good. As a result, the pachinko balls B and B of the respective ball passages 19a and 19b have a function of urging the ball exit side, and rotation and slight vibration are given to the pachinko balls B that contact the ridges, thereby further improving the ball breaking effect. Enhanced. A plurality of protrusions having a slight height may be provided instead of the spiral protrusion. Also in this case, rotation and slight vibration of the pachinko balls B and B that are in contact with each other are given, and the ball scraping effect is further enhanced.

  Further, if the other end portion of the ball waste bar 33 is not supported by the bearing portion 34 as shown in FIG. 13, the free other end portion of the ball waste bar 33 is slightly shaken in the case of high speed rotation. An effect is obtained, and a sufficient ball-scraping effect is also obtained by this.

  FIG. 14 shows a conical ball bar 33a protruding toward the upstream side of the passage 19 instead of the ball bar 33 shown in FIG. The inclination angle of the outer peripheral surface of the ball scrap bar 33a is made substantially the same as the inclination angle of the inner bottom surface of each of the spherical passages 19a, 19b. As a result, the pachinko balls B on the downstream side in each of the ball passages 19a and 19b, that is, the side close to the lead screw 24 and the adjacent portion thereof rotate in contact with the ball scraper bar 33a, and this is particularly likely to cause ball clogging. Ball scraping can be performed in the vicinity, and it is possible to prevent the occurrence of ball biting and clogging.

  FIG. 15 shows a stepped portion 35 having a lower downstream side on the inner bottom surface of the ball outlet 20 of the passage portion 19, and a step is provided between the passage portion 19 and the inner bottom surface of the guide rail 10. As a result, the inclination angle of the inner bottom surface of the passage portion 19 can be relaxed, and the number of pachinko balls in contact with the ball scraper bar 33 in each passage portion 19a, 19b increases. By increasing the number of B and providing the step portion 35, a ball scraping effect can be obtained, and these work synergistically to further enhance the ball scraping effect.

  The ball waste bars 33 and 33a are also applied to the ball tank 8 shown in FIGS. 7 to 9, and although not shown, the ball passage of the passage portion 19 may be one or three. Of course, the present invention is applicable.

The back view of the pachinko machine to which the present invention is applied. The perspective view of the ball tank concerning the present invention. The exploded perspective view. FIG. The WW sectional view taken on the line in FIG. XX sectional drawing in FIG. The perspective view of the ball tank concerning other embodiments. The cross-sectional front view. The YY sectional view taken on the line in FIG. The perspective view of the ball tank in other embodiments. The cross-sectional front view. FIG. 12 is a sectional view taken along line ZZ in FIG. 11. The cross-sectional front view of the ball tank which concerns on other embodiment. The cross-sectional front view of the ball tank which concerns on other embodiment. The cross-sectional front view of the ball tank which concerns on other embodiment.

Explanation of symbols

8 Ball tank 18, 18a Bottom portion 19 Passage portion 20 Ball outlet 23 Premium ball dispensing device 24 Lead screw 25 Drive motor B Pachinko ball 32 Notch opening 33 Ball scrap bar

Claims (1)

  It is formed by integrating a premium ball dispensing device, and the ball tank has an open top surface, and a passage section with a concave cross section is provided along the longitudinal direction at the bottom, and the downstream end of the passage section has a required length. The ball outlet is provided at the downstream end, and the prize ball dispensing device is disposed outside the ball outlet and below the bottom and flows down the passage. A ball of a pachinko machine comprising a lead screw that pays out pachinko balls one by one from a ball tank and a drive motor that rotates the lead screw, and a notch opening of a required width is provided at the bottom above the lead screw. tank.

Images