JPH11226212A - Prize ball tank for pachinko game machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To relax limit in dimension by increasing the freedom in the layout of parts on the perimeter of a prize ball tank. SOLUTION: The rear side of a ball stack breaking part 30 formed inside a rear plate 12 of a prize ball tank serves as a switch housing part 36 and an empty/fill detection switch 76 is disposed. When no game balls are in the prize ball tank, a pressure receiving plate 42 of an oscillating member 40 oscillating in an opening 38 is positioned above an outflow port 28 and the empty/fill detection switch 76 is turned ON. When the game balls exist in the prize ball tank, the pressure receiving plate 42 is pressed by the pressure of the balls to osculate the oscillating member 40 and a thrust plate 44 presses a driving out/in member 80 of the empty/fill detection switch 76 to turn OFF the empty/fill detection switch 76. As the empty/fill detection switch 76 is installed behind the ball stack breaking part 30 as provided in the conventional prize ball tank, there is actually no area required for the occupying of the empty/fill detection switch 76.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of a ball game machine, and more particularly to the structure of a prize ball tank.

[0002]

2. Description of the Related Art A ball game machine represented by a pachinko machine is
The mainstream is to pay out game balls as prize balls in accordance with winning or the establishment of a score. Such a ball game machine is provided with a prize ball tank for storing game balls for prize balls.

The prize ball tank has an outlet for allowing game balls to flow out, a bottom plate inclined toward the outlet, a peripheral wall surrounding the bottom plate, and a ball-break portion protruding from the peripheral wall toward the outlet. In addition, an empty charge detection switch for detecting whether or not there is a game ball in the prize ball tank guides the game ball which has flowed out from, for example, the lower side of the bottom plate of the prize ball tank or the outlet to the payout device. It was installed under the uppermost stream (just below the outlet) of the alignment gutter to perform. The empty charge detection switch is activated when a plate member that changes its position up and down in accordance with the presence or absence of the ball pressure of the game ball falls in a hole opened in the bottom plate of the prize ball tank (on the plate member, ie, the prize ball). It is off when the game ball is in the tank) and is turned on when the plate member rises (when there is no game ball in the prize ball tank on the plate member). The presence or absence of a game ball in the prize ball tank can be detected.

[0004]

However, when the empty charge detection switch is installed below the bottom plate of the prize ball tank or the most upstream part of the alignment gutter as in the prior art, the empty charge detection switch is installed. For this reason, it is necessary to provide a space for the movement and a moving area of the plate member outside the prize ball tank, which reduces the degree of freedom in arranging components in the ball game machine. In addition, due to such restrictions on the arrangement of parts, it has been difficult to increase the capacity of the prize ball tank.

According to the present invention, the area occupied by the empty charge detection switch avoids restricting the arrangement and dimensions of other parts, thereby increasing the degree of freedom in arranging parts in a ball game machine. The purpose of the present invention is to ease dimensional restrictions such as increasing the capacity of a semiconductor device.

[0006]

According to a first aspect of the present invention, there is provided a prize ball tank for a ball game machine, comprising: an outlet through which a game ball flows out; In a prize ball tank of a ball game machine including a sloped bottom plate, a peripheral wall surrounding the periphery of the bottom plate, and a ball-break portion protruding from the peripheral wall to the outlet side, adjacent to the outlet of the ball-break portion An opening formed in a wall surface to be displaced, a displacement member that is displaced between a vacant position protruding above the outlet from the opening and a charging position that is closer to the opening than the vacant position, An urging means for urging to the empty position side, and an empty charging detection switch housed on the concave side of the ball-breaking portion and having different positions depending on whether the displacement member is in the empty position or in the full position. Is provided.

[0007] The empty charge detection switch is installed on the concave side of the ball-break portion provided in the conventional prize ball tank, that is, in the space that is simply used for nothing in the conventional prize ball tank. The area occupied by the empty / full detection switch is virtually unnecessary. As a result, the empty charge detection switch does not limit the arrangement and dimensions of other parts, increases the degree of freedom in arranging parts in the ball game machine, and limits dimensions such as increasing the capacity of the prize ball tank. Can be alleviated.

The displacement member is urged toward the empty position by an urging means, for example, a spring or a weight (may be its own weight), and becomes empty when there is no game ball in the prize ball tank. When there is a game ball, the ball is pressed by the ball pressure to be in the full position. That is, the position becomes the filling position or the empty position depending on whether or not there is a game ball in the prize ball tank, and the position of the empty filling detection switch is switched on and off.
Therefore, the presence or absence of a game ball in the prize ball tank can be detected as in the conventional case.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the accompanying drawings.

[0010]

FIG. 1 is a perspective view from the front side of a prize ball tank of this example, FIG. 2 is a perspective view from the back side, and FIG.
FIG. 3 is an exploded perspective view of the state shown in FIG. 2. Hereinafter, the structure of the prize ball tank will be described with reference to these drawings. The structure of the main body of the ball game machine to which the prize ball tank is mounted is well-known, and therefore illustration and description are omitted.

The prize ball tank 10 made of plastic includes a back plate 12 serving as a main body side of a ball game machine, a pair of side plates 14 and 16 and side plates 14 and 16 extending from left and right ends thereof.
A peripheral wall 20 including a front plate 18 disposed therebetween is provided. Attachment members 24 having screw holes 22 are continuously provided on both left and right ends of the back plate 12, and are attached to the upper portion on the rear side of the main body of the ball game machine by screws (not shown) penetrating these screw holes 22.

A bottom plate 26 is provided laterally inside the peripheral wall 20, and an outlet 28 is formed in a part of the bottom plate 26 as shown in FIGS. The bottom plate 26 has an outlet 2
The peripheral portion of 8 is low and the peripheral wall 20 side is inclined high, so that the game balls on the bottom plate 26 roll toward the outlet 28 and fall from the outlet 28.

A portion of the back plate 12 projects from the back side toward the front side, that is, toward the inside of the prize ball tank 10, and forms a ball-break portion 30. The wall surface 32 on the front side of the ball-breaking portion 30 is substantially parallel to the axial direction of the outlet 28, and the prize ball tank 1
In the state where 0 is attached to the ball game machine main body, it is almost vertical. A peripheral surface 34 continuous with the outer periphery of the wall surface 32 is tapered so as to taper from the back plate 12 side to the wall surface 32 side, and particularly, a game ball is provided near a connection portion between the bottom plate 26 and the peripheral surface 34. Prevents stagnation.

As shown in FIGS. 2 and 3, the rear side of the ball-squashing section 30 is recessed to form a switch housing section 36. The switch housing section 36 and the prize ball tank 10 are provided on the wall surface 32. An opening 38 communicating with the inside is provided so as to communicate with the outlet 28. As shown in FIG. 1, a plastic swinging member 40 corresponding to a displacement member is disposed inside the opening 38.

As shown in FIG. 3, the swing member 40 is
A rectangular pressure receiving plate 42 matching the inner peripheral shape of the opening 38, a push-up plate 44 orthogonal to the pressure-receiving plate 42, and the pressure-receiving plate 42 and the push-up plate 44
A pair of swing shafts 46, 48 extending left and right from the connecting portion of
Consists of The oscillating member 40 has the oscillating shaft 46 inserted between the bearing projections 50a and 50b erected on the back side of the wall surface 32, and the oscillating shaft 48 inserted between the bearing projections 52a and 52b. The pressing member 54 made of plastic is brought into contact with the tip of the bearing projection 50a, 50b, 52a, 52b to prevent the swing shafts 46, 48 from falling off. The bearing projections 50a, 50b, 52a, 52
The length of b is greater than the diameter of the swing shafts 46, 48, and the swing shafts 46, 48 are rotatable (the swing member 40 is
6 and 48).

The pressing member 54 is a substantially U-shaped portal member as a whole. The beam portion 56 has a circular arc groove 60 through which a screw receiver 58 erected on the back side of the wall surface 32 is inserted, and the wall surface 32 also has a similar shape. Is provided with an arc-shaped groove 66 through which the base 64 of the support pin 62 erected on the back side is inserted. Further, one leg 68 is provided with a guide plate 70 for preventing the disturbance in the swinging direction by sliding the push-up plate 44, and the other leg 72 is provided for defining the retreat position of the pressure receiving plate 42. Regulation member 74
Is provided.

Further, an empty charge detection switch 76 is provided behind the pressing member 54. As shown in FIGS. 2, 3, and 4, the empty charge detection switch 76 is provided in the box-shaped main body 7.
8 and a retractable member 80 that can be retracted from the bottom surface of the main body 78. As shown in FIGS. 2 and 3, the main body 78 is provided with a screw hole 82 at a position corresponding to the screw receiver 58 and a pin hole 84 at a position corresponding to the support pin 62. Also, inside the main body 78, a switch mechanism that is turned on when the retractable member 80 protrudes (see FIG. 4A) and turned off when the retractable member 80 is pushed in (see FIG. 4B). (Not shown) and a spring (not shown) for urging the retractable member 80 to the protruding side are incorporated.

In the empty charge detection switch 76, as shown in FIG. 2, the support pin 62 is passed through a pin hole 84,
It is attached by a screw (not shown) screwed into the screw receiver 58 through the screw through hole 82. At this time, the empty / full detection switch 76 sandwiches the pressing member 54 between the pressing member 54 and the wall surface 32 to prevent the pressing member 54 from falling off. As described above, since the pressing member 54 prevents the swing member 40 from dropping off, the empty charge detection switch 76, the pressing member 54, and the swing member 40 are connected to the main body side of the winning ball tank 10 with only one screw. , So that assembly or disassembly can be performed very easily and with a small number of man-hours.

In the prize ball tank 10, the prize ball tank 10
When there is no game ball therein, the weight of the push-up plate 44 and the retractable member 80 of the empty charge detection switch 76 may push down the push-up plate 44 by the urging force of the spring (the weight of the push-up plate 44 and the spring serve as urging means). Function), the swing member 40
As shown in FIGS. 1 and 4A, the pressure receiving plate 42 is displaced upward, and is positioned above the outlet 28. At this time, the empty charge detection switch 76 is set to the state shown in FIG.
As shown in FIG. 7, the retractable member 80 is protruding downward and is turned on.

On the other hand, if there is a game ball in the prize ball tank 10 (the game ball flows out from the outflow port 28 to an alignment gutter not shown). The game ball prevents the subsequent outflow from the outlet 28 and stays in the prize ball tank 10), and the ball pressure presses the pressure receiving plate 42, so that the rocking member 40 moves around the rocking shafts 46 and 48. Swings clockwise in FIG. Then, as shown in FIG. 4B, the push-up plate 44 pushes the retractable member 80 of the empty charge detection switch 76, so that the empty charge detection switch 76 is turned off.

It is possible to detect whether the winning ball tank 10 is empty or not based on the on / off state of the empty charge detection switch 76. In the prize ball tank 10 having the above-described configuration, the empty charge detection switch 76 is provided with the switch accommodating portion 36 recessed behind the ball breaking portion 30 provided in the conventional prize ball tank. In the conventional prize ball tank, the space is occupied by a space that has not been used for anything. Therefore, the area occupied by the empty / full detection switch 76 is virtually unnecessary. As a result, the empty charge detection switch 76 does not limit the arrangement and dimensions of other parts, increases the degree of freedom in arranging parts in the ball game machine, and increases the size of the prize ball tank, for example. Restrictions can be relaxed.

The embodiments of the present invention have been described with reference to the specific examples. However, the present invention is not limited to such specific examples, and may be variously implemented without departing from the gist of the present invention. Needless to say. For example, in the embodiment, the empty charge detection switch is turned on when the prize ball tank is empty, and is turned off when it is not empty. However, the order may be reversed.

[Brief description of the drawings]

FIG. 1 is a perspective view from the front side of a prize ball tank of a specific example.

FIG. 2 is a perspective view from the back side of a prize ball tank of a specific example.

FIG. 3 is an exploded perspective view of the state of the winning ball tank shown in FIG. 2 in a specific example.

4A and 4B are explanatory diagrams of the operation of the empty charge detection switch of the prize ball tank according to a specific example. FIG. 4A shows the state when the empty charge detection switch is on, and FIG. FIG. 4 is an explanatory diagram when the switch is off.

[Explanation of symbols]

10 ... Prize ball tank 12 ... Back plate 14 ... Side plate
18 Front plate 20 Peripheral wall 22 Screw hole 24 Mounting member 2
6 ... bottom plate 28 ... outlet 30 ... ball collapse part 32 ... wall surface 3
DESCRIPTION OF SYMBOLS 4 ... Peripheral surface 36 ... Switch accommodating part 38 ... Opening 40 ... Swing member 42 ... Pressure receiving plate 44 ... Push-up plate 46 ... Swing shaft 48 ... Swing shaft 50a, 50b ... Bearing protrusion 52a, 52b ... Bearing protrusion 54 ... Pressing Member 56: Beam 58: Screw receiver 6
0: arc groove 62: support pin 64: base 66: arc groove 6
8 Leg 70 70 Guide plate 72 Leg 74 Regulator emptying detection switch 78 Body 80 Projecting member 82 Screw hole 84 Pin hole

Claims (1)

[Claims] 1. An outflow port for allowing game balls to flow out, a bottom plate inclined toward the outflow port, a peripheral wall surrounding the bottom plate, and a ball-breaking portion protruding from the peripheral wall to the outlet side. In the prize ball tank of a ball-and-ball game machine, an opening formed in a wall surface of the ball-breaking portion adjacent to the outlet, an empty position protruding above the outlet from the opening, and the opening being higher than the empty position. A displacement member that is displaced between a full position and a biasing unit that biases the displacement member toward the empty position side; A prize ball tank for a ball game machine, comprising: an empty charge detection switch that is different in position between when it is at the full position and when it is at the full position.