JPH0337655Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a safe ball discharging device for discharging a fixed number of prize balls for each safe ball.

[Conventional technology]

Examples of this type of safe ball discharge processing device include the one described in Utility Model Application Publication No. 59-87886 (hereinafter referred to as the first conventional device), and the one described in Utility Model Application Publication No. 54-169589 (hereinafter referred to as the second conventional device). There are things.

Therefore, in the first conventional device, as shown in FIG. 5, a safe ball waiting section b is provided in the middle of the safe ball discharging passage a, and a swingable control lever c for safe ball discharging is provided on both sides of the waiting section b. and the control lever d for ejecting the prize ball, and the control lever c is always brought into contact with a cam h having an uneven cam surface fixed to the shaft g of the motor f with a spring e, and the convex part of the cam h is The control lever c is made to push out the safe balls on the standby part b into the safe ball discharging passage a, and the operation lever d is swung to eject the prize balls.

Further, as shown in FIG. 6, the second conventional device includes a crank n that makes intermittent reciprocating motion by contacting the outer peripheral surface of a plate cam m fixed to the output shaft l of a motor k, and a crank n that is connected to this crank n and that moves up and down. An elevating body o that slides to the lower position and places a safe ball on its upper surface, and a driven body q that opens a prize ball case via a link by being pushed up by the safe ball that rides on the upper surface according to the upward movement of this elevating object o. It consists of

[Problems that ideas should solve]

However, in the first conventional device, the control lever c
is urged toward the cam h side by the spring e, and the trochanter i is always brought into contact with the uneven surface of the cam h by the spring e, so the control lever c adjusts the load to push out the safe ball, It is constantly subjected to a load due to the restoring force of spring e. That is, when the trochanter i moves to the convex surface of the cam h, the cam h is moved by the spring e.
As it rotates against the restoring force of cam h, a significant load is applied to motor f, and conversely, when it moves toward the concave surface, the restoring force of spring e works to forcibly speed up the rotation of cam h. The rotation of the momentum motor f becomes irregular, and if the motor f is operated for a long period of time, the failure rate of the motor f becomes high. For this reason, if the spring constant of the spring e is lowered, the restoring operation of the control lever c will become irregular, and there is a risk that troubles such as ball jamming will occur, making it impossible to perform a normal safe ball ejection operation. Furthermore, since the spring e constantly repeats its elasticity, it has the disadvantage that it may break due to fatigue due to its repeated operation, or if its restoring force weakens, it will not be able to perform the normal safe ball ejection operation as described above.

In addition, the control lever c has its lower end aligned with the axis j.
Since it is pivoted and swings, it is a large member, which necessarily requires a large moving area and a large space. This is contrary to the manufacturer's expectation that all parts be assembled as compactly as possible, as the back parts of a pachinko machine are usually assembled in a wide variety of ways and are complex. It is not suitable for practical use because it is costly and requires time to assemble.

Next, in the second conventional device, a plate cam m is fixed to the output shaft l of a motor k, a crank n is brought into contact with the plate cam m, and an elevating body o is further connected to the crank n to send out the safe balls. Since it is made to slide up and down within the guide frame r, a significant load is placed on the motor k, shortening its lifespan, and the elevating body o itself is worn out due to contact with the guide frame r, increasing the operating cost of the pachinko machine. and have a negative impact on durability. In addition, if a burr-like protrusion hits the upper surface of the elevating body o, especially at the edge on the side of the safe ball discharge gutter s, or if there is a step between the upper surface of the elevating body o and the bottom of the safe ball ejecting gutter s, the elevating body Even if the safe ball is pushed up with o, the safe ball remains on the upper surface of the elevating body o without being discharged into the safe ball discharge gutter s, and the normal sending operation is no longer achieved.

Therefore, the present invention was devised in view of the above-mentioned problems of the prior art, and it is a safe pachinko machine that has a compact structure, performs safe ball ejection processing smoothly and accurately, and can be used for a long period of time. The present invention provides a ball discharge processing device.

[Means to solve the problem]

The safe ball discharging device of the present invention comprises a safe ball leading-out passage which is provided in communication with the outlet of the safe ball collecting section, has a vertical section at the bottom, and has a ball receiving shelf formed at the end thereof; A crank disk is fixed to the motor shaft of a motor provided outside on one side of the ball lead-out passage, and has a pin protruding from an eccentric position, a sliding part in which a groove facing the pin is formed, and a groove perpendicular to the vertical part. It is formed into a horizontal T-shape by an extruded part extending from the front end and having a tapered surface that slopes inward, and performs a reciprocating linear movement left and right according to the rotation of the crank disk, and the tip of the extruded part touches the ball on the ball tray. A push-out body for pushing out safe balls into a safe-ball discharge passage; and a push-out body provided on the other side of the safe-ball discharge passage opposite to the tip of the push-out portion of the push-out body, the upper end of which is rotatably supported by a shaft. The rocking piece is connected to a ball contact part that is pressed by the safe balls pushed out to the safe ball discharge passage, and a prize ball release device via a vertical rod, and releases the prize balls by swinging. It consists of a connecting arm that operates the device.

[Effect]

The safe balls collected in the safe ball collection part flow down the safe ball lead-out passage and stop on the ball receiving shelf in the vertical part. On the other hand, due to the continuous rotation of the motor, the extruded body that engages with the pin fixed to the crank disk performs reciprocating linear motion in the horizontal direction, and the tip of the extruded portion plunges onto the bottom surface of the vertical portion, and the tapered surface of the tip causes the ball to be held in place. To surely bring a safe ball on a shelf into contact with a ball contact part of a swinging piece.

As a result, the swing piece is swung, and the operating rod of the prize ball discharging device is moved via the vertical rod to release a fixed number of prize balls.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a back view of a pachinko machine, in which 1 is a game board, 2 is a ball tank installed above it, and 3 is a prize ball release device. The prize ball release device 3 is the third
As shown in the figure, there is a vertical cylindrical fixed case part 4 in which a fixed amount of prize balls can be collected, an upper valve 5 and a lower valve 6 facing the upper and lower ends of this fixed case part 4, and the upper valve 5 and the lower valve 6 are provided so as to be movable up and down. A discharge actuating body 7 that alternately opens and closes the upper valve 5 and the lower valve 6 by movement, and a sideways operation in which one end is rotatably supported by a shaft 37 and the other end faces the engagement recess 7a of the discharge actuating body 7. It consists of 8 rods.

The upper end opening of the fixed case part 4 communicates with the ball tank 2 via the lead-out gutter 9 and the bent gutter 10, and the lower end opening faces a prize ball discharge gutter 11 that communicates with a ball receiving tray (not shown) in front of the machine. Normally, the upper end of the upper valve 5 is pushed down by the bifurcated engagement portion 7b of the discharge actuator 7 to open the upper end opening of the fixed case portion 4, and the lower valve 6 is opened.
The upper end of this contacts the engagement convex portion 7c of the ejection actuating body 7 to close the lower end opening of the fixed case portion 4, whereby a fixed number of prize balls are stored in the fixed case portion 4. It will be done. And the operating rod 8 is the third
When pushed upward as shown by the chain line in the figure, the discharge actuator 7 moves upward, lowers the tip of the upper valve 5 to close the upper end opening of the fixed case part 4, and leaves the lower valve 6 in a free state to open the fixed case part. A fixed number of prize balls within 4 are discharged into the prize ball discharge gutter 11. Reference numeral 12 denotes a cover-like safe ball collecting part that collects safe balls that have won a prize in a prize opening on the game board surface, and the safe balls collected in this part are guided to a safe ball leading-out passage 13.

As shown in FIG. 2, the lower part of the safe ball lead-out passage 13 is formed as a vertical portion 14 in which several (about 3 in this embodiment) safe balls are arranged vertically in a row. Motor 1 on the left side outward
5 and an extrusion body 16 are provided. A crank disk 19 having a protruding pin 18 at an eccentric position is fixed to the motor shaft 17 of the motor 15. Extruded body 16
is formed into a horizontal T-shape by a sliding part 21 having a vertical groove 20 and an extruded part 22 extending orthogonally toward the vertical part 14 and having a tapered surface 22a whose tip is inclined inward. The pin 18 of the crank disk 19 is exposed to the groove 20. Therefore, when the motor 15 rotates, the extrusion body 16 correctly performs reciprocating linear motion in the horizontal direction by the guide frame 23, and the tip of the extrusion part 22 moves vertically into the vertical part 14.
When the safe balls enter the ball receiving shelf 24 at the end, they are pushed out to the discharge port 25 formed in the side wall of the vertical portion 14 as shown by the chain line in FIG.

A swinging piece 26 is disposed on the outer side of the discharge port 25. The upper end of the swing piece 26 is swingably supported by a shaft 27, and the ball contact portion 2 hangs downward.
8 are positioned opposite to each other so as to close the discharge port 25, and a connecting arm 29 is protruded sideways from the upper end, and the connecting arm 29 connects to the prize ball discharging device 3 via a vertical rod 30. is connected to the operating rod 8. Further, the rear end of a horizontal locking piece 31 is rotatably supported by a shaft 32 at a position outside the ball contacting part 28 of the swinging piece 26, and its tip is formed at the ball contacting part 28 of the swinging piece 26. The discharge port 25 is inserted into the vertically elongated hole 33 and protrudes from the discharge port 25. Further, a hook portion 34 is formed on the lower surface of the lock piece 31 so as to be able to engage with the lower end side surface of the vertically elongated hole 33. Normally, the hook portion 34 engages with the lower end side surface of the vertically long hole 33. The swing piece 26 is restrained. 35 is a safe ball discharge passage provided in communication with the discharge port 25, and 36 is a safe ball detection sensor.

Therefore, the safe balls collected in the safe ball collecting part 12 flow down the safe ball lead-out passage 13 and stop on the ball receiving shelf 24 of the vertical part 14. On the other hand, motor 15
As a result of continuous rotation, the extrusion body 16 performs reciprocating linear motion in the horizontal direction, and its extrusion part 22 enters the vertical part 14 to expel the safe balls on the ball receiving shelf 24 to the discharge port 25 as shown by the chain line in FIG. As a result, the safe ball comes into contact with the locking piece 31 and rotates upward to release the restraint of the swinging piece 26 by the hook portion 34, and also pushes the swinging piece 26 to swing it. Then, as the swinging piece 26 swings, the vertical rod 30 rises and pushes the operating rod 8 of the prize ball discharging device 3 upward to perform the prize ball discharging operation.

On the other hand, the safe balls on the ball receiving shelf 24 of the vertical part 14 move to the discharge port 25 while being prevented from escaping upward by the tapered surface 22a at the tip of the extrusion part 22 of the extrusion body 16, as shown in FIG. Therefore, the safe ball can be reliably brought into contact with the swinging piece 26 to force movement of the prize ball discharging device 3 toward the operating rod 8.

[Effect of idea]

As described above, the safe ball discharge processing device for a pachinko machine of the present invention provides the following effects.

a The extrusion body is interlocked with the rotation of the crank disk, and the extrusion body is moved in a straight line reciprocating motion in the horizontal direction, so no unnecessary load is applied to the motor, and the life of the motor can be extended. This avoids malfunctions and allows normal ejection of safe balls for a long period of time.

b The extruded body is formed into a horizontal T-shape so that only the upper and lower end surfaces of the slide part come into contact with the inner surface of the guide frame, so there is almost no need to consider friction loss, and the pachinko machine can withstand long-term use. No negative impact on cost or durability. Also,
The extrusion part is moved forward and backward at right angles to the vertical part of the safe ball lead-out passage to push the safe ball linearly from the side, and the tip of the extrusion part is made into a tapered surface that slopes inward. is pushed out smoothly and is also prevented from escaping upwards,
This allows the prize ball to be ejected very smoothly and accurately without causing any hindrance to the movement of the swinging piece.

c. The extruded body is guided by a guide frame and reciprocated in a straight line in the lateral direction, so it can be assembled compactly in a narrow space compared to the conventional type that swings around an axis, and is easy to manufacture. The empty part can be used for assembling other parts, making it very practical.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention. Figure 1 is a back view of the pachinko machine, Figure 2 is a perspective view of the safe ball discharge processing device, and Figure 3 is a partial cross-section showing the operation of releasing prize balls. FIG. 4 is an enlarged front view of the main parts, FIG. 5 is a perspective view of the first conventional device, and FIG.
The figure is a perspective view of a second conventional device. 3...Prize ball release device, 12...Safe ball collecting section, 13...Safe ball lead-out passage, 14...Vertical section, 15...Motor, 16...Extrusion body, 17...
Motor shaft, 18... Pin, 19... Crank disk, 20... Groove, 21... Slide portion, 22...
Extruded portion, 22a... Tapered surface, 24... Ball receiving shelf, 26... Rocking piece, 27... Shaft, 28... Ball contact portion, 29... Connecting arm, 30... Vertical rod.

Claims (1)

[Scope of Claim for Utility Model Registration] A safe ball lead-out passage which is provided in communication with the exit of the safe ball collection part, whose lower part is formed as a vertical part, and where a ball receiving shelf is formed at the end thereof; and the safe ball lead-out passage. A crank disk fixed to a motor shaft of a motor provided outwardly on one side of the passage and having a pin protruding at an eccentric position, a sliding part forming a groove facing the pin, and a sliding part extending perpendicularly toward the vertical part. It is formed into a horizontal T-shape with an extruded part whose tip is a tapered surface that slopes inward, and performs a reciprocating linear movement left and right according to the rotation of the crank disk, and the tip of the extruded part touches the safe ball on the ball holder shelf. an extrusion body for pushing out the balls into the safe ball discharge passage; and an extrusion body provided on the other side of the safe ball discharge passage opposite to the tip of the extrusion part of the extrusion body, and whose upper end is swingably supported by a shaft. The swinging piece is connected to a ball contacting part that is pressed by the safe balls pushed out to the safe ball discharging passage, and a prize ball discharging device via a vertical rod, and the swinging piece is connected to the prize ball discharging device by swinging. 1. A safe ball ejection processing device for a pachinko machine, comprising a connecting arm to be operated.