JP5007153B2 - Upper tank - Google Patents

Description

  The present invention relates to an upper tank for storing pachinko balls circulating in the island in the upper part of the game island in the game island in which a plurality of pachinko gaming machines are arranged.

  In a game island where multiple pachinko machines are arranged in a line on one or both sides, the configuration of a system that circulates pachinko balls stored in the game island is described. For example, a large number of pachinko balls are stored in the game island. A ball storage tank to be moved, a ball supply device provided at a discharge port at an end of the ball storage tank, and a lifting device that lifts the pachinko balls discharged from the ball supply device or each pachinko gaming machine to the recovery basket upward An upper tank for temporarily storing pachinko balls lifted to the upper part of the lifting device, a replenishment bowl for supplying pachinko balls from the upper tank to each pachinko gaming machine and each game medium lending machine, and an upper part It is equipped with an overflow bowl to return the pachinko balls overflowing from the tank to the ball storage tank. By such a circulation mechanism, the pachinko balls on the island circulate and replenish the business. So that there is no hindrance of trouble, and the like.

  By the way, the upper tank installed in the above game island has what is shown in patent document 1, and is comprised as shown in FIG. 7 or FIG. That is, an upper tank 4 that can store pachinko balls lifted from the ball storage tank 2 at the lower part of the game island 1 via the lifting device 3 at the upper part of the game island 1, A partition wall 7 partitions the storage unit 5 for temporarily storing pachinko balls and a supply / reception unit 6 for supplying and receiving pachinko balls and other islands. The partition wall 7 is provided with an overflow port 7a through which the pachinko balls overflowed in the storage unit 5 are sent out to the supply / reception unit 6, and the pachinko balls fed into the supply / reception unit 6 are stored through the overflow channel 6a. Delivery to the tank 2 is possible. The ball storage tank 2 is provided with an upper limit detection switch 14a and a lower limit detection switch 14b on the side wall at a predetermined height. The detection amount of the balls in the ball storage tank 2 is detected by these detection switches. When the supply is reduced, a supply request signal is transmitted to the adjacent island, and when a supply request signal is transmitted from the adjacent island, a shutter (not shown) provided at the supply port 9 is opened to supply a ball to the adjacent island. It will be.

  However, in such a configuration, the guide plate 8 is provided on the upper part of the partition wall 7 between the storage unit 5 and the supply / reception unit 6, and the pachinko ball that has been transported as described above is the delivery port of the transporting device 3. 3a through the guide plate 8 to the storage unit 5, the supply / reception unit 6 or the supply port 9 to the adjacent island, but when a shutter (not shown) provided in the supply port 9 is closed When the shutter is opened from the gap 8a of the guide plate 8 provided below the delivery port 3a and the shutter is open, almost all of the pachinko balls that have been transported pass through the balance rod. Since it is sent to the adjacent amusement island, there is a disadvantage that it hardly flows into the storage section 5 of the own room.

In addition, since it is configured as described above, if a big hit occurs simultaneously in a large number of game machines on its own island while supplying pachinko balls to adjacent islands, pachinko balls in the storage unit 5 of the upper tank 4 When the lower limit switch Sd provided in the storage unit 5 is turned OFF, the shutter of the supply port 9 is closed and the adjacent island is normally closed even if the supply request signal from the adjacent island is normally output. The supply to is stopped, and pachinko balls flow only in the reservoir 5 of the own island. When the pachinko balls in the storage unit 5 increase and the lower limit switch Sd is turned ON, the shutter of the supply port 9 is opened again, and the supply to the adjacent island is resumed. Therefore, the shutter is opened even during the supply operation to the adjacent island. The operation of closing and closing occurred, and there was a disadvantage that quick supply to adjacent islands could not be performed.
JP 2006-280539 A

  The present invention has been made in view of the above circumstances, and in a game island in which a plurality of pachinko machines are arranged, the amount of pachinko balls accumulated in a storage part of an upper tank provided in each game island It is an object of the present invention to provide an upper tank that can stably supply pachinko balls to game machines on its own island by securing the pachinko balls and can quickly supply pachinko balls to game machines on adjacent islands.

  In order to solve the above problems, an upper tank according to claim 1 of the present invention is configured to receive balls lifted from a lower part of a game island through a lifting device in a game island in which a plurality of pachinko machines are arranged. In the upper tank which can be stored at the upper part of the game island, the upper tank has a storage part for temporarily storing the ball to replenish the gaming machine and a balance passage having a supply port for transferring the ball to another island. And guide means for guiding the lifted balls to the balance passage, a storage passage for circulating a part of the balls placed on the guide means to the storage section, and a lower limit detection means for detecting the presence or absence of balls in the storage section And a balance passage switching means for switching between a state in which the balls can circulate in the balance passage and a state in which the balls cannot be circulated, and when the lower limit detection means has not detected a ball, the guide cannot be passed through the balance passage. To the means When almost all of the placed balls are moved to the storage section through the storage section passage and the number of balls in the storage section exceeds the lower limit detection means and exceeds a predetermined amount, the storage section passage is blocked and substantially all of the balls are balanced. When the amount of balls in the storage unit exceeds the lower limit detection means and falls below a predetermined amount, the storage unit passage is opened and a part of the balls placed on the guide unit is transferred to the storage unit through the storage unit passage. And the remaining balls are guided to the balance passage.

  According to a second aspect of the present invention, the upper tank of the present invention is connected from the supply port provided in the upper tank of the adjacent island to the receiving port provided in the upper tank of the own island. A balance passage for transferring the ball, a connection port connected to the receiving port and the communication port provided in the upper tank of the own island, and an internal connection passage for transferring the ball from the balance passage from the receiving port to the communication port; A balance passage that is connected to a communication port of the upper tank and moves a ball to an adjacent island on the opposite side of the adjacent island, and the internal connection passage is removable, and the balance is achieved by removing the internal connection passage. The ball from the passage can be transferred to the inside of the island from the receiving port.

  Further, the upper tank of claim 3 in the present invention is connected to the receiving port provided in the upper tank of the own island from the supply port provided in the upper tank of the adjacent island in claim 1 or 2, and from the adjacent island. When transferring the ball to the own island, the transferred ball is received by a receiving port buffer member provided at the receiving port of the own island, and the receiving port buffer member enters the upper tank from the receiving port. A slack elastic member that causes the ball to collide in a buffered state, and a curved elastic member that is curved downward and convex below the drooping elastic member, and receives the pachinko ball that collided with the drooping elastic member with the curved elastic member. It is characterized by being transferred into the upper tank.

  Furthermore, the upper tank according to claim 4 of the present invention is the supply according to claim 1, 2 or 3, wherein the upper tank has an inlet at an upper position in the storage portion and supplies or receives balls from the own island to other islands. An overflow passage having an outlet is provided at a lower portion of the receiving portion, and the balls stored in the storage portion are transferred from the inlet to the outlet of the overflow passage to be transferred to the supply receiving portion.

  According to the above configuration of the present invention, when the lower limit detecting means of the storage part of the upper tank does not detect a ball (in the description of the present invention, “pachinko ball” is abbreviated as “ball”), the balance When the balls cannot be passed through the balance passage by the passage switching means, almost all of the balls placed on the guide means are moved to the storage portion through the storage portion passage, and thereby the amount of balls in the storage portion increases rapidly. To do.

  In addition, the ball in the reservoir further increases, and when the reservoir passage is blocked over the lower limit detection means, almost all of the balls are guided to the balance passage, while the ball in the reservoir decreases, When the storage section passage is opened when the amount is below a predetermined amount in a state where the lower limit detection means is exceeded, a part of the balls placed on the guide means are transferred to the storage section through the storage section passage, and the rest The balls are guided to the balance passage and supplied to the adjacent island.

  Therefore, according to the present invention, when the pachinko ball is fed to other game islands, if the reservoir of the upper tank is greater than or equal to a predetermined amount that closes the reservoir passage, When all of them are guided to the balance passage and become less than the predetermined amount that opens the reservoir passage, a part of the ball flows to the reservoir and is replenished, and the ball flows into the balance passage while supplying the ball to other islands It will not be in a state that does not happen, it will be possible to quickly deliver to other islands.

  Embodiments of the present invention will be described below with reference to the drawings.

  First, the overall structure of the game island will be described with reference to FIG. Note that the entire configuration of the game island 1 shown in FIG. 7 used in the description of the background art is substantially the same in this embodiment. Moreover, in the following description, what is common with the member of FIG. 7 is demonstrated using the same number or symbol.

  In this game island 1, a plurality of pachinko machines and game media lending machines arranged in a row, a lifting device 3 for lifting while polishing balls, and an upper tank 4 provided on the upper side of the lifting device 3, A ball storage tank 2 for storing a large amount of balls in the amusement island 1 is provided. The ball storage tank 2 includes, for example, a main ball storage tank 2A and a sub ball storage tank 2B. In addition, the balls discharged from the ball storage tank 2 are lifted into the upper tank 4 by the lifting device 3, and are replenished from the upper tank 4 to each pachinko gaming machine and each game medium lending machine via a replenishment rod 11. In the tank 4, the excess balls are circulated and recirculated through an overflow basket 12 that returns the balls to the ball storage tank 2 again.

  In addition, approximately 150,000 shots of balls are stored in the ball storage tank 2 on the island in the game island 1 of FIG. The number of the ball storage tanks 2 is determined according to the number of pachinko gaming machines arranged on the game island 1, and the ball storage tanks 2 have different lengths so that a large amount of balls can be stored. Yes. Here, one main ball storage tank 2A (a long, substantially rectangular shape and capable of storing about 100,000) and one sub ball storage tank 2B (main ball storage tank) sequentially connected to the main ball storage tank 2A It is a substantially rectangular shape slightly shorter than the tank 2A, and can store about 50,000 pieces).

  Further, a plurality of pachinko gaming machines and gaming medium lending machines are alternately arranged on the gaming island 1 constructed with a frame. Below the pachinko gaming machine, a collection basket 9 for collecting discharged balls (out balls) is provided in an inclined manner toward the lower part of the lifting device 3 (for example, a cloth polishing lifting device).

  Hereinafter, the upper tank 4 of the present embodiment will be described in detail. As shown in FIG. 1 (a), (b) or FIG. 2, the inside of the upper tank 4 has a storage part 5 for storing the balls lifted by the above-described lifting device 3, and the adjacent islands and balls. A supply / reception unit 6 for performing supply / reception is provided. The storage unit 5 and the supply / reception unit 6 are partitioned by a partition wall 7. In addition, a delivery port 17 is provided at the upper part of the storage unit 5 to deliver the balls that have been lifted by the lifting device 3 into the upper tank 4. Further, a discharge port 15 is provided in the lower portion of the side plate 35D of the storage unit 5, and a replenishment basket 11 (see FIG. 7) is attached to the discharge port 15, so that balls are attached to the pachinko gaming machine and each game medium lending machine. Will be supplied.

  Further, the back plate 35B in the upper tank 4 is provided with an upper limit detecting means St and a lower limit detecting means Sd at a predetermined height, so that the amount of balls stored in the storage section 5 is reduced, and the height of the lower limit detecting means Sd. When the decrease is detected, the ball supply device 13 in the game island 1 is driven.

  On the other hand, a first supply port 18a for supplying balls to adjacent islands is provided above the supply / reception unit 6, and a reception port 19a for receiving balls supplied from the adjacent islands is provided below the first supply ports 18a. The supply and reception of the adjacent islands and balls are performed via the balance passages 20A and 20B (see FIG. 4 or 5) connected to the one supply port 18a and the reception port 19a. In addition, an overflow opening 22 (see FIG. 2) is provided at the bottom of the hollow bottom plate 21 formed in the lower part of the supply / reception unit 6, and the overflow channel 16 has a downward slope below the overflow opening 22. The overflow rod 12 (see FIG. 7) is attached to the flow-down port 24 formed in the lower part of the overflow channel 16.

  The guide means for guiding the balls to the supply / reception unit 6 at the upper part of the partition wall 7 that partitions the storage unit 5 and the supply / reception unit 6 of the upper tank 4 has a gentle downward slope toward the supply / reception unit 6. The upper guide plate 23 is provided and a guide portion 25 described later. Further, as shown in FIG. 1A, a gap 36 is provided between the back plate 35 </ b> B in which the delivery port 17 is formed and the upper guide plate 23. Also, on the opposite side of the back plate 35B, although not shown in FIGS. 1B, 2 and 3, the front plate 35A of the upper tank 4 is provided as shown in FIGS. The storage part 5 and the supply / reception part 6 have an internal space with the partition wall 7 as a boundary by the front plate 35A, the back plate 35B, and the side plates 35C and 35D.

  Further, as shown in FIGS. 1 (a) and 1 (b), the upper guide plate 23 is formed on the upper guide plate 23 obliquely from the middle of the storage portion 5 to the wall surface along the opposite edge of the back plate 35B. A rising piece 29 is formed, an opening 30 through which the balls can be circulated is formed in the rising piece 29, and a storage portion passage 31 is provided below the opening 30.

  The storage portion passage 31 is a passage through which a part of the balls placed on the upper guide plate 23 is circulated to the storage portion 5, and the inside of the storage portion passage 31 is closed by the front plate 35 </ b> A of the storage portion 5. And an upper opening 31a opened toward the opening 30 of the rising piece 29 and a lower opening 31b opened downward in the reservoir 5, and the lower opening 31b is a position of the lower limit detecting means Sd. It is formed so as to be higher than the predetermined amount. In such a reservoir 31, when the balls in the reservoir 5 exceed the lower limit detection means Sd and become a predetermined amount (the upper opening 31 a that is the upper limit of the reservoir 31) or more, the reservoir 31 is blocked. When all the balls are transferred to the guide unit 25 and the balls in the storage unit 5 have passed the lower limit detection means Sd and become less than a predetermined amount (the upper opening 31a which is the upper limit of the storage unit passage 31), the storage is performed. A part of the balls placed on the upper guide plate 23 with the part passage 31 opened are transferred to the storage part 5 through the storage part passage 31 and the remaining balls are transferred to the guide part 25.

  Furthermore, as shown in FIG. 1B or FIG. 2, an overflow passage 32 is formed in the storage portion 5 along the partition wall 7. The overflow passage 32 is formed in a cylindrical shape, and has an inlet 32a at an upper position in the storage portion 5 and an outlet 32b at a lower position of the partition wall 7, so that the balls stored in the storage portion 5 are overflowed. The cylindrical lower opening of the passage 32 is closed. Further, when balls are accumulated in the storage portion 5 and enter the overflow passage 32 from the inlet 32a of the overflow passage 32, the balls fall on the balls that have closed the lower opening of the overflow passage 32 and are further accumulated. At the point of time when the outlet 32b is reached, it is transferred from the outlet 32b to the supply / reception unit 6.

  In addition, as shown in FIG. 2, a buffer plate 33 made of urethane material is fixed in a hanging manner from a fitting 33a fixed to the upper portion of the outlet 32b of the overflow passage 32 in a state slightly spaced from the wall surface of the partition wall 7. Since the ball that has passed through the overflow passage 32 hits the cushioning material 33 and falls to the bottom plate 21 of the supply / reception unit 6 from a low position, there is little impact on the bottom plate 21 of the supply / reception unit 6 and the effect of noise reduction is achieved. In addition, after the balls have fallen onto the bottom plate 21 without being scattered, the balls pass through the overflow opening 22 of the supply / receiving unit 6 and are transferred to the overflow channel 16. With such a configuration, as described later, a simple configuration in which a ball passage entering from another island through the receiving port 19a of the upper tank 4 and a ball passage entering through the overflow passage 32 are made common. It becomes possible to do. Further, by providing the buffer material 33 in this way, it is possible to have a configuration that does not get in the way even if the internal connection passage 20C (see FIG. 5) is provided in the supply / reception unit 6 as described later.

  On the other hand, as shown in FIG. 1B or FIG. 4, a guide portion 25 is provided above the supply / reception portion 6 and has a step at the lower portion of the downstream end portion of the upper guide plate 23. At one end of the guide portion 25, a first supply port 18a for moving a ball guided by the upper guide plate 23 to another island is formed. The supply port 18a is provided with an opening / closing shutter 34a driven by a motor M as a balance path switching means of the present invention, and the opening / closing shutter 34a switches between a state where balls can be circulated and a state where circulation is impossible. ing. Further, as shown in FIG. 1A, a second supply port 18b is formed on the opposite side (front plate 35A side) of the first supply port 18a, and a motor is also provided in the second supply port 18b. An open / close shutter 34b by driving is provided. In such a configuration, as shown in FIG. 4, the first supply port 18a is connected to the balance passage 20A connected to the receiving port of the adjacent island, and the second supply port 18b is connected to the first supply port 18a. A balance passage 20D connected to the receiving port of the adjacent island on the opposite side to the supply port 18a is connected. Further, a receiving port 19a is provided below the first supply port 18a, and a balance passage 20B connected to the supply port of the adjacent island is connected to the receiving port 19a.

  In the above configuration, when the lower limit detection means Sd of the storage unit 5 does not detect a ball, the amount of replenishment to the game machine on the own island is reduced, so that the OFF signal of the lower limit detection means Sd By closing the first and second supply ports 18a, 18b, substantially all of the balls placed on the upper guide plate 23 are moved to the storage part 5 via the storage part passage 31, and the balls in the storage part 5 are at the lower limit. The lower opening 31b of the storage section passage 31 is blocked over the detection means Sd. Further, by accumulating balls up to the upper opening 31 a of the storage portion passage 31, substantially all of the balls are guided to the guide portion 25, and further, the balls in the storage portion 5 are reduced to lower the lower opening 31 b of the storage portion passage 31. As a result of the opening, a part of the balls placed on the upper guide plate 23 is transferred to the storage part 5 through the storage part passage 31 and the remaining balls are guided to the guide part 25.

  In addition, when there is no ball supply request signal from the adjacent island, the ball guided to the guide portion 25 is kept in the upper guide plate 23 in order to keep the first and second supply ports 18a, 18b closed. In the case where it overflows from the state of being mounted on it and falls into the storage part 5 from the gap 36 (see FIG. 1A) and the storage part passage 31 is vacant, it is stored through the opening 30 of the upper guide plate 23. It falls to the section passage 31.

Further, when the storage part 5 of the upper tank 4 is filled with balls, it flows from the inlet 32a of the overflow passage 32 through the outlet 32b to the supply / reception part 6 and hits the buffer plate 33 as described above, and then the supply / reception part 6 falls to the bottom plate 21, passes through the overflow opening 22 of the supply / reception unit 6, and is transferred to the overflow channel 16.

  In the present embodiment, as shown in FIG. 4, the supply port 18 provided in the upper tank 4 on the own island is connected to the inner side of the supply / receiver 6 from the supply port 18 provided in the upper tank 4 on the adjacent island. A receiving port buffer member 26 is provided. As shown in FIG. 6, the receiving port buffer member 26 includes a drooping elastic member 27 made of urethane or the like that causes a ball entering the supply receiving unit 6 from the receiving port 19 a to collide in a buffered state, and a lower portion of the drooping elastic member 27. And a curved elastic member 28 made of urethane or the like that is curved downward and convex, and when the ball is transferred from the adjacent island to the supply and receiving part 6 of the own island, the transferred ball is supplied to the receiving port 19a of the own island. It is made to receive with the receiving port buffer member 26 provided.

  With such a configuration, when a ball supplied from an adjacent island enters the receiving port 19a through the balance passage 20B (see FIG. 4), the ball is first received by the drooping elastic member 27, thereby reducing the collision sound. The speed can be reduced without bouncing the ball, and after that, by falling on the curved elastic member 28, the ball falls from the low position to the bottom surface of the supply / receiving unit 6 while being collected in a narrow area below the curved elastic member 28. Therefore, there is little impact on the bottom, no high noise is generated, and balls are not scattered, and are transferred to the overflow channel 16 through the overflow opening 22 of the supply / reception unit 6, and the overflow rod 12 To the ball storage tank 2.

  Furthermore, as another embodiment, as shown in FIG. 5, a balance passage 20B is connected from the supply port of the adjacent island to the supply port 19a of the upper tank 4 of the own island, and the supply port of the own island is connected from the supply port of the adjacent island. It is possible to transfer balls to 19a. In addition, the internal connection passage 20C is connected to the receiving port 19a and the communication port 19b provided on the opposite side of the receiving port 19a inside the upper tank 4 of the own island, and the ball from the balance passage 20B is received by the receiving port 19a. It is possible to transfer to the opposite communication port 19b and to feed to the adjacent island on the opposite side via the balance passage 20E connected to the communication port 19b.

  Further, the internal connection passage 20C can be removed. By removing the internal connection passage 20C, as shown in FIG. 4, the balls from the balance passage 20B are passed from the receiving port 19a through the receiving port buffer member 26. It can be transferred to the inside of the supply / reception unit 6. With such a configuration, the ball can be transferred directly from the adjacent island to the opposite adjacent island through the own island. If the above-described internal connection passage 20C is not provided, the balance passage (saddle member) passes over the own island from the adjacent island to the adjacent island on the opposite side, and a very long saddle member. However, the eaves member connecting the islands has a complicated and complicated configuration, but the configuration of the above-described embodiment makes such a long eaves member unnecessary.

  The upper tank according to the present invention is a game on its own island by ensuring the amount of pachinko balls accumulated in the storage part of the upper tank provided on each game island in the game island in which a plurality of pachinko machines are arranged. It can be used as an upper tank that can stably supply pachinko balls to the machine and can quickly supply pachinko balls to adjacent gaming machines.

(a) is a top view which shows the internal structure of the upper tank of this invention, (b) is a front view which shows the internal structure of the upper tank of this invention. It is a perspective view which shows the internal structure of the upper tank of this invention. It is a perspective view which shows the balance channel | path structure to an adjacent island at the time of providing the receiving port buffer member in the inside of the upper tank of this invention. It is a perspective view which shows the balance channel | path structure to an adjacent island at the time of providing a receiving port buffer member in the inside of the upper tank of this invention. It is a perspective view which shows the balance channel | path structure to an adjacent island at the time of providing an internal connection passage inside the upper tank of this invention. It is a perspective view which shows independently the receiving port buffer member provided in the inside of the upper tank of this invention. It is a figure which shows the structure of the game island to which the conventional (or this invention) upper tank is applied. It is a figure which shows the internal structure of the conventional upper tank.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Game island 2 Ball storage tank 2A Main ball storage tank 2B Sub ball storage tank 3 Lifting device 5 Storage unit 6 Supply receiving unit 7 Partition wall 9 Collection rod 11 Supply rod 12 Overflow rod 13 Ball supply device 14a Upper limit detection switch 14b Lower limit Detection switch 15 Discharge port 16 Overflow channel 17 Delivery port 18a First supply port 18b Second supply port 19a Reception port 19b Communication port 20A Balance passage 20B Balance passage 20C Internal connection passage 20D Balance passage 20E Balance passage 21 Bottom plate 22 Overflow Opening 23 Upper guide plate 24 Downflow port 25 Guide portion 26 Receiving port buffer member 27 Suspended elastic member 28 Bending elastic member 29 Upright piece 30 Opening 31 Reserving portion passage 31a Upper opening 31b Lower opening 32a Inlet 32b Outlet 32 Overflow passage 33a Metal fitting 33 Buffer plate 34a 34b close shutter 35A front plate 35B back plate 35C side plate 35D side plate 36 a gap 37 bottom plate St limit detecting means Sd lower limit detection means M motor

Claims (4)

In the upper tank that can store the ball lifted through the lifting device from the lower part of the game island in the game island where a plurality of pachinko machines are arranged in the upper part of the game island,
The upper tank
A storage unit for temporarily storing balls to replenish the gaming machine;
A balance passage having a supply port for transferring the ball to another island;
Guide means for guiding the lifted balls to the balance passage;
A reservoir passage that circulates a portion of the balls placed on the guide means to the reservoir;
Lower limit detection means for detecting the presence or absence of balls in the reservoir,
Balance passage switching means for switching between a state where balls can be circulated and a state where circulation is impossible in the balance passage,
When the lower limit detection means does not detect the ball, the entire ball placed on the guide means is moved to the storage part through the storage part passage by setting the state where the ball cannot flow in the balance passage,
When the ball in the storage part exceeds the lower limit detection means and exceeds a predetermined amount, the storage part passage is blocked and almost all of the balls are guided to the balance passage,
When the ball in the storage unit is below the predetermined amount in a state where it passes the lower limit detection unit, the storage unit passage is opened and a part of the ball placed on the guide unit is transferred to the storage unit through the storage unit passage and the rest The upper tank is characterized in that the ball is guided to the balance passage. A balance passage that is connected to a receiving port provided in the upper tank of the own island from a supply port provided in the upper tank of the adjacent island, and for transferring balls from the adjacent island to the own island;
An internal connection passage that is connected across the receiving port and the communication port provided in the upper tank of the own island, and transfers the balls from the balance passage from the receiving port to the communication port;
Connected to the communication port of the upper tank of the own island, and has a balance passage for transferring balls to the adjacent island on the opposite side of the adjacent island,
2. The upper tank according to claim 1, wherein the internal connection passage is removable, and the ball from the balance passage can be transferred from the receiving port to the inside of the own island by removing the internal connection passage. When the ball is transferred from the supply port provided in the upper tank of the adjacent island to the supply port provided in the upper tank of the own island, and the ball is transferred from the adjacent island to the own island, the transferred ball is received from the own island. It is the structure which receives with the receiving mouth buffer member provided in,
The receiving port cushioning member includes a hanging elastic member that causes a ball that has entered the upper tank from the receiving port to collide in a buffered state, and a curved elastic member that is curved downward and convex below the hanging elastic member,
3. The upper tank according to claim 1, wherein a pachinko ball colliding with the hanging elastic member is received by the curved elastic member and then transferred into the upper tank. An overflow passage having an outlet is provided at the lower part of the supply receiving unit that has an inlet at the upper position in the storage unit of the upper tank and supplies or receives balls from the own island to other islands, and the balls stored in the storage unit 4. The upper tank according to claim 1, wherein the upper tank is transferred to the supply / reception unit by moving from the inlet to the outlet of the overflow passage.