JPH09135952A - Ball tank for pachinko machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable making a window hole for facing a base plate box large, by making an installation area for a system plate small. SOLUTION: A passage 20 having a concave cross section from one side to the opposite side face at a bottom 19 in the longitudinal direction of a rectangular box 8a, whose top face is open, is provided in an inclined state, and the downstream side end thereof is formed as a ball outlet 22. The bottom 19 of the rectangular box 8a excluding the part of the passage 20 is inclined in the longitudinal opposite direction to the inclination of the passage 20, and the direction orthogonal to the passage 20 is formed horizontally without inclination.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ball tank for storing pachinko balls supplied from a supply path above a pachinko machine and guiding the balls to a pachinko ball dispensing device.

[0002]

2. Description of the Related Art Recent pachinko machines are provided with a start winning opening, a variable display device, a big winning opening, etc. on a game board, and when the game ball wins the starting winning opening, the pattern of the variable display device is changed. , When the display at the time of the stop displays a predetermined big hit symbol, it becomes a specific game state (big hit) and the one having a game content that repeats the operation of opening the special winning opening is mainstream. .

On the other hand, a mechanism board made of synthetic resin is mounted on the back surface of the game board so as to be openable and closable, and a circuit for controlling the above-mentioned game contents is provided in a window hole formed in substantially the center of the mechanism board. A board box that houses the boards is provided. Also, as is well known, a ball tank and a tank rail communicating with a drop port provided at the bottom of the ball tank are provided on the upper portion of the mechanism plate, and a pachinko ball in the ball tank is connected to the tank rail via the tank rail. It leads to the pachinko ball dispensing device.

By the way, in recent pachinko machines, a large circuit board is required in accordance with the sophistication of the game contents, and thus the board box for housing the circuit board is also enlarged. As a result, it is becoming difficult to mount the mechanism plate on the window hole. It is thought that such a problem can be easily solved by enlarging the window hole of the mechanism plate. However, the mechanism plate is provided with back parts such as the above-described ball tank, tank rail, and pachinko ball dispensing device. For this reason, the size of the window is limited, and it is impossible to increase the size of the window.

Therefore, in order to solve such a problem, an outlet is formed on one side wall of the ball tank, and a passage portion for aligning the pachinko balls to the outlet is formed at the bottom of the ball tank. Thus, there has been proposed a structure in which the tank rail is not required and the window hole of the mechanism plate can be enlarged (see, for example, JP-A-7-51452).

[0006]

However, in this conventional ball tank, the passages are formed on the upper surface of the bottom of the ball tank by bulging the front and rear side walls of the ball tank inward. Therefore, the ball pressure of the pachinko ball in the ball tank is concentrated in the passage part, and ball biting occurs in the passage part, and the problem that the pachinko ball in the ball tank cannot flow out from the outlet is a problem. there were. Further, since the passage is formed on the upper surface of the bottom of the ball tank, there is a problem that the volume in the ball tank is reduced and the amount of stored pachinko balls is reduced.

Therefore, according to the present invention, the passage portion for guiding the pachinko balls in the ball tank to the pachinko ball dispensing device is formed integrally with the ball tank to eliminate the need for a tank rail, and the ball pressure applied to the passage portion is effective. It is an object of the present invention to provide a ball tank for a pachinko machine that can be smoothly relaxed to allow the pachinko ball in the ball tank to smoothly flow out from the passage portion.

[0008]

In order to achieve the above object, a ball tank of a pachinko machine according to the present invention has a rectangular box body having an upper surface opened from the bottom to the side in the length direction from one side to the opposite side. A passage portion having a concave cross-section is provided toward the bottom, and the downstream end of the passage portion is formed as a ball outlet, and the bottom portion of the rectangular box body excluding the passage portion has a length direction of the passage portion. It is characterized in that it is inclined in the direction opposite to the inclination and that it is formed horizontally without inclination in the direction orthogonal to the passage portion.

Therefore, the pachinko balls stored in the ball tank naturally flow down to the downstream side while being aligned in the passage portion at the bottom of the ball tank and discharged from the ball outlet. At this time, the ball pressure of the pachinko ball stored in the ball tank is such that the bottom of the ball tank is inclined in the direction opposite to the inclination of the passage portion and does not reach the ball outlet side of the passage portion. The balls do not clump together near the ball outlet, causing the balls to bite, thus allowing smooth outflow.

Further, since the bottom portion of the ball tank in the direction orthogonal to the passage portion is formed horizontally and has no inclination, the ball pressure of the pachinko balls stored in the ball tank is concentrated in the passage portion. It becomes possible to smoothly move down the pachinko ball in the passage portion in the ball outlet direction.

[0011]

Next, the present invention will be described 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, and FIG. 2 is a perspective view of an upper portion of a front frame. In the figure, 1 is a front frame of a pachinko machine, 2 is a game board which is detachably attached to the rear surface of the front frame 1, and a winning ball collecting cover 3 is arranged on the back surface of the game board 2. 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 provided on the surface of the game board 2, a variable display device, and a big winning opening.

Reference numeral 5 is a mechanism plate made of synthetic resin which is mounted on the back surface of the game board 2 so as to be openable and closable. This mechanism board 5 is a game board 2
Has a plate-shaped portion 6 facing the back surface thereof, and a window hole 7 for opening the substrate box 4 is formed in the approximate center of the plate-shaped portion 6. Above the window hole 7 and on the back surface of the plate-like portion 6, a ball tank 8 according to the present invention is fixed. Further, on the back surface of the plate-shaped portion 6 located on the right side of the window hole 7, a pachinko ball payout device 9 and a bent rail 10 for guiding the pachinko ball stored in the ball tank 8 to the pachinko ball payout device 9 are provided. Further, below the pachinko ball payout device 9, a discharge gutter 11 for guiding the paid out pachinko ball as a prize ball to a hitting ball supply tray (not shown) on the front surface of the front frame 1 is formed. Further, in the plate-like portion 6 below the window hole 7, various back parts such as a winning ball discharging processing device 13 for discharging and discharging the winning balls collected in the winning ball collecting portion 12 and an out ball discharging gutter 14 are provided. It is provided.

FIG. 3 is a perspective view of the ball tank 8 according to the present invention,
FIG. 4 is a cross-sectional front view of the ball tank 8, and FIG. 5 is a vertical sectional side view of the same. Next, a specific structure of the ball tank 8 according to the present invention will be described with reference to FIGS. 3 to 5. This ball tank 8
Is a rectangular box 8a whose upper surface is opened by a rear side wall 15 in contact with the mechanism plate 5, a front side wall 16 facing the rear side wall 15, a left side wall 17, a right side wall 18, and a bottom portion 19. A passage portion 20 having a concave cross-section is formed over the entire length, which is the bottom portion 19 of the rectangular box body 8a and approximately at the center in the length direction. The passage portion 20 is formed in a downwardly inclined shape from the left side wall 17 to the right side wall 18 of the rectangular box body 8a, and the downstream side end thereof is opened so that the ball outlet 2 is formed.
It is formed as 1.

On the other hand, the bottom portion 19 of the rectangular box body 8a excluding the passage portion 20 has its length direction as shown in FIG.
It is inclined in the direction opposite to the inclination of 0, and is formed in a horizontal shape having no inclination in the direction orthogonal to the passage portion 20 as shown in FIG.

The passage portion 20 is formed so as to become gradually deeper from the upstream end side toward the downstream end side. Further, a partition wall 22 is provided on the inner bottom surface of the passage portion 20 from approximately the central portion to the downstream end portion. The partition wall 22 allows the pachinko balls to flow down toward the ball outlet 21 while being aligned in two rows. Ball passages 23 and 24 are formed in. As shown in FIG. 4, the partition wall 22 is formed so as to be gradually higher toward the downstream end, and the height of the downstream end is formed to be slightly lower than the diameter of the pachinko ball.
In addition, in the above-described embodiment, the ball passage of the passage portion 20 has two
Although described as a row, it may be one row or three rows.

As shown in FIG. 2, the ball tank 8 integrally provided with the passage portion 20 as described above is fixed to the plate-shaped portion 6 of the mechanism plate 5 by applying a rear side wall 15 and fixing it by a suitable fixing means such as a screw. To be done. Then, as shown in FIGS. 1 and 4, the passage portion 2
By connecting the ball outlet 21 of 0 and the bent rail 10, the pachinko balls stored in the ball tank 8 can be sent to the pachinko ball dispensing device 9.

The ball tank 8 constructed as described above stores the pachinko balls replenished from the replenishing path above the pachinko machine (not shown). Flow down while aligning the parts 20,
The ball exit 21 is guided to the pachinko ball payout device 9 via the bent rail 10. At this time, since the bottom portion 19 in the length direction of the ball tank 8 is inclined in the direction opposite to the inclination of the passage portion 20, most of the ball pressure of the pachinko balls stored in the ball tank 8 is left on the bottom portion 19 and the left side. Since it is received by the wall 17 and does not hang on the ball exit side of the passage portion 20 and has a horizontal shape without inclination in the direction orthogonal to the passage portion 20, it hangs on the pachinko ball located in the passage portion 20. The ball pressure is remarkably reduced, and as a result, the flow of the pachinko balls flowing down the passage portion 20 is not obstructed and there is no possibility that the ball balls are clogged with each other near the ball outlet, and are stored in the ball tank 8. It is possible to smoothly and surely guide the pachinko ball to the pachinko ball dispensing device 9.

Further, by forming the passage portion 20 having a concave cross section over substantially the entire length in the longitudinal direction of the bottom portion 19 of the ball tank 8, the pachinko balls of the ball tank 8 can be extended over the passage portion 2 in a wide range.
It is possible to move it to 0, and as a result, the passage part 2
The ball pressure within 0 is relaxed, and smooth downflow movement is obtained.

In the above embodiment, the passage portion 20 is used.
Was described as being formed over substantially the entire length in the longitudinal direction of the bottom portion 19 of the ball tank 8, but, for example, as shown in FIG. 6, the downstream end side of the passage portion 20 is shortened so that the bent rail 10 is joined. Good. Further, as shown in FIG. 7, the ball pressure receiving plate 25 may be detachably or integrally provided above the ball outlet 21 of the passage portion 20. By thus providing the ball pressure receiving plate 25, it is possible to further reduce the ball pressure applied to the ball outlet 21 portion. Further, as shown in FIG. 8, the inner bottom surface of the passage portion 20 may be formed in a stepwise shape toward the downflow direction of the pachinko ball. With this configuration, the pachinko balls flowing down the passage portion 20 can be given a ball-disrupting action, and a smoother flow of the pachinko balls is guaranteed.

[0020]

As is apparent from the above description, in the present invention, the passage portion for aligning the pachinko balls and guiding them to the pachinko ball dispensing device is formed integrally with the ball tank. It is possible to reduce the installation area of the ball tank to the mechanism plate because it is not necessary to provide a tank rail or ball leveling like in the pachinko machine of, and as a result, it is possible to form a large window hole to face the board box it can. Moreover, the storage volume of pachinko balls can be increased as compared with the conventional ball tank.

In addition, the length direction of the bottom of the ball tank excluding the passage portion is inclined in a direction opposite to the inclination of the passage portion, and
By forming a horizontal shape having no inclination in the direction orthogonal to the passage portion, the ball pressure applied to the pachinko ball flowing down the passage portion of the ball tank can be effectively and remarkably reduced, and ball biting is eliminated. Therefore, the pachinko balls stored in the ball tank can surely and smoothly flow out to the pachinko ball dispensing device.

[Brief description of the drawings]

FIG. 1 is a rear view of a pachinko machine.

FIG. 2 is a perspective view of an upper portion of the front frame to which the ball tank according to the present invention is attached.

FIG. 3 is a perspective view of a ball tank according to the present invention.

4 is a cross-sectional front view of the ball tank of FIG.

5 is a vertical side view of the ball tank of FIG.

FIG. 6 is a cross-sectional front view of a ball tank according to another embodiment in which a passage portion is shortened.

FIG. 7 is a cross-sectional front view of a ball tank of another embodiment in which a ball pressure receiving plate is provided on the ball tank.

FIG. 8 is a cross-sectional front view of a ball tank of still another embodiment in which the bottom surface of the passage portion is formed in a step shape.

[Explanation of symbols]

 8 ball tank 8a rectangular box 19 bottom 20 passage 22 ball exit

Claims (1)

[Claims] 1. A rectangular box body having an open top surface is provided with a passage portion having a concave cross-section from one side toward the opposite side surface at an inclined bottom portion, and a downstream end portion of the passage portion. Is formed as a sphere outlet, and the bottom of the rectangular box body excluding the passage is inclined in the length direction in the direction opposite to the inclination of the passage, and in the direction orthogonal to the passage is horizontal without inclination. A ball tank for a pachinko machine characterized by being formed.