JPH0348834B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a safe ball discharge control device in a pachinko machine.

[Conventional technology]

Conventionally, a safe ball discharge control device for a pachinko machine has a control plate that is swingably supported to dispense prize balls, and a cam protrusion that comes into contact with the interlocking surface of the control plate, and is rotatable. There is a known device that includes a supported cam disk and a drive disk that is placed opposite to the cam disk and is rotated by a motor, and the two disks are configured to be interlocked by the intervention of a safety ball. (For example, see Japanese Patent Publication No. 55-41791).

The safe ball discharge control device having such a configuration is such that when the recesses formed on the drive plate and the cam movement plate are in the same phase, the safe balls waiting in the safe ball guiding trough will fall into the double recesses. At the same time, the safe ball becomes a clutch member and both plates are rotated together, whereby the control plate is moved upward by the cam convex part of the cam movement plate and the prize balls in the prize ball case are released. It is becoming more and more common.

[Problem to be solved by the invention]

In the conventional pachinko machine safe ball discharge control device described above, only the drive plate is always rotated by the motor, and the cam drive plate is stopped correctly at a position where the recessed part of the cam drive plate can drop the safe balls. However, if a shock is applied to the pachinko machine or the cam movement plate is reversed even slightly due to the reaction when the safe balls are ejected, the double concave notches will not be in the same phase forever and the safe balls will not be in the same phase. There was a serious problem in that it was not possible to treat the emissions.

An object of the present invention is to provide a safe ball discharge control device for a pachinko machine that can accurately perform safe ball discharge processing by reliably preventing the reverse rotation of the cam disk.

[Means to solve the problem]

In order to achieve the above object, the present invention provides a set of a first rotating body and a second rotary body at the end of a safe ball discharge passage.
The first rotating body is fixed to the motor shaft of the motor, and the second rotating body is loosely fitted to the motor shaft and supported in a free state. A recessed portion is provided on the outer periphery of the body and the second rotating body so that the safe balls guided from the safe ball discharge passage can be accommodated by opposing each other, and a prize ball discharging device is provided near the second rotating body. An actuating member to be actuated and a lock piece that engages with the actuating member and restrains it from operating are pivotally supported, and the second rotating body is provided with an actuating member that abuts on the lock piece to restrain the actuating member. In a safe ball ejection control device for a pachinko machine, which is provided with a protrusion that causes an unlocking action and an engaging portion that engages with an operating member to move the operating member and release a prize ball, a stopper that has a locking portion at the tip thereof is provided. The member is swingably provided, and the stopper member is rotatably biased so that the locking portion always maintains a contact state with the outer circumferential surface of the second rotating body, and the stopper member is rotatably biased so that the locking portion and the second rotating body are in contact with each other. The second rotating body is configured to prevent reverse rotation of the second rotary body by engagement with the recessed portion of the second rotating body.

[Effect]

When one of the recesses of the second rotating body is stopped at a position where the safe ball can be dropped, the locking part of the stopper member is configured to rotate from the outer circumferential surface of the second rotating body to one of the other recesses due to its rotational biasing action. and engages with its edge to prevent the second rotating body from reversing. Therefore, one of the recesses of the second rotating body is reliably stopped at a position into which the safe ball can be dropped, and the safe ball ejecting operation is performed accurately.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. Fig. 1 is a back view of the pachinko machine, where 1 is the game board, 2 is the mechanism plate arranged on the back side, and above this is the prize ball tank 3, and the prize ball tank 3 is The prize balls flow through the lead-out gutter 4 and are continuously sent to the prize ball discharging device 5. The prize release device 5 has a case portion 6 in which a certain number of prizes are accommodated, and when a vertical rod 7 for releasing prizes is pushed upward, a valve member 8 connected to the upper end of the rod 7 opens. The prize balls are discharged into a prize ball discharge gutter 9.
Reference numeral 10 denotes a collection part for collecting safe balls that have entered the prize opening on the game board surface, and the safe balls collected in the collection part 10 are sent from the lower passage 11 to the safe ball discharge passage 1.
Guided by 2.

Fig. 2 is a perspective view showing the safe ball discharge control device, Fig. 3 is a front view thereof, and Fig. 4 is a sectional view of the main part. A circular first rotating body 13 and a second rotating body 14 are arranged concentrically facing each other. The first rotating body 13 is fixed to a motor shaft 16 of a motor 15, and the second rotating body 14 is freely supported on the motor shaft 16.
The motor 15 is continuously rotated in the direction of the arrow in FIG. 3 when the power switch of the Pachinko machine is turned on. Further, the motor shaft 16 has a stepped portion 1 as shown in FIG.
7 is formed, and the step portion 17 prevents the first rotating body 13 from moving in the axial direction.

The first rotary body 13 and the second rotary body 14 have disc portions 13a and 14a facing each other, and the outer periphery of the disc portion 13a of the first rotary body 13 has a groove of an appropriate depth that opens at the opposing inner surface. The semicircular recesses 18 are mutually connected to each other.
They are located at equal intervals of 120 degrees. The circumferential dimension of these recesses 18 is approximately equal to the ball diameter of the safe ball, and the axial dimension is approximately half the ball diameter. Further, on the outer periphery of the disc portion 14a of the second rotary body 14, there is provided a groove having the same depth, which is opened at the opposing inner surface and whose circumferential dimension is slightly larger than that of the concave portion 18 of the first rotary body 13.
Recesses 19 are provided at equal intervals.
The axial dimension of the recess 19 is approximately half the diameter of the safe ball, so that both the recesses 18 and 19 are formed at the end of the safe ball discharge passage 12. The safe ball is dropped and accommodated between the two recesses 18 and 19 by facing each other. Also, the second rotating body 1
4, rotatable rollers 20a shown as engaging parts 20 are provided at positions equally spaced by 120 degrees, and furthermore, three protrusions 24 are provided on the outer peripheral surface at equal intervals of 120 degrees. They are formed at separate locations.

At a lateral upper position of the second rotating body 14, the second
an actuating member 22 having a substantially dogleg-shaped cam surface 21 that can engage with the roller 20a of the rotating body 14;
is pivotally supported by a shaft 23, to which the lower end of the vertical rod 7 for releasing the prize is connected.
Further, a hook portion 25 is formed on the side portion of the actuating member 22 above the shaft 23 . And the actuating member 22
Due to its own weight, it is always in the inactive position as shown in Figure 3, and the valve member 8 of the prize release device 5 is closed.
When the roller 20a of the second rotating body 14 engages with the cam surface 21 and swings upward, the vertical rod 7 is pushed upward and the valve member 8 of the prize release device 5 is opened to release the prize. Further, a lock piece 27 is provided near the actuating member 22 so as to be swingable around a shaft 26.

The lock piece 27 has an arm 27a extending above the operating member 22 and an abutting piece 27b that can abut against the protrusion 24 of the second rotating body 14.
An engaging stepped portion 28 is formed on the lower surface of the actuating member 22 to engage with the hook portion 25 of the actuating member 22. The lock piece 27 is normally held in a substantially horizontal position as shown in FIG. The portion 25 is engaged with the engagement step portion 28 to restrain the actuating member 22 in the inactive position. Furthermore, the protrusion 24 of the second rotating body 14 is selected at a position where it can come into contact with the contact piece 27b of the lock piece 27 immediately before the roller 20a engages with the cam surface 21 of the actuating member 22. The second rotary body 14 is stopped and held at the position where the protrusion 24 abuts the contact piece 27b of the lock piece 27, and at this time, the circumferential center of the recess 19 of the second rotary body 14 becomes a safe ball. It is positioned opposite to the terminal end of the discharge passage 12.

In the safe ball discharge control device having such a configuration, when no safe balls are generated, the first rotary body 13 is continuously rotated in the direction indicated by the arrow in FIG. 5 by the rotation of the motor 15, but the second rotary body 14 is is motor shaft 16
It is not rotated because it is supported in a free state. Therefore, the operating member 22 is not swung and the prize release device 5 is not operated. In this state, the safe ball B is at the safe ball collecting part 10.
When the safe balls B are guided to the safe ball discharge passage 12 from the
When the recess 18 of the first rotating body 13 reaches the end of the safe ball discharge passage 12, the fifth
When the concave portion 19 of the second rotary body 14 is aligned with the concave portion 19 of the second rotating body 14 as shown in the dashed line in the figure, the concave portion 18 and the 1
He was depressed and taken to prison between 9 and 9. Then, when the safe ball B moves through the recess 18 of the first rotating body 13 and reaches the end of the recess 19 of the second rotating body 14, the rotation of the first rotating body 13 is stopped by the safe ball B. It is transmitted to the second rotating body 14 and rotates as one.

As the second rotating body 14 rotates, its projection 24 comes into contact with the contact piece 27b of the lock piece 27, causing the lock piece 27 to rotate upward as shown in FIG. The engagement between the joint portion 28 and the hook portion 25 of the actuating member 22 is released. And the second rotating body 14
continues to rotate, the roller 2 of the second rotating body 14
0a comes into contact with the cam surface 21 of the actuating member 22, and the actuating member 22 is swung upward by the inclined surface of the cam surface 21 as shown in FIG. As a result, the vertical rod 7 is pushed upward to open the valve member 8 of the prize release device 5 and release the prize. Then, when the roller 20a of the second rotating body 14 separates from the cam surface 21, the actuating member 22 and the locking piece 27 first return to the position shown in FIG. The hook portion 25 of the actuating member 22 engages with the actuating member 22 to again restrain the actuating member 22 in the inactive position, and then the safe ball B is ejected to the ejecting path. Further, at the same time as the safe balls B are discharged to the discharge path, the transmission of the rotation of the first rotary body 13 to the second rotary body 14 is cut off, and the rotation of the second rotary body 14 is stopped.

Therefore, in the present invention, a stopper member 32 is provided on the side of the second rotating body 14 to prevent the second rotating body 14 from reversing. As shown in FIGS. 10 and 11, this stopper member 32 has an upper end supported swingably by a shaft 33, and a hook-shaped locking portion 32a having a tapered surface is formed at its lower end. Further, the locking portion 32a is always rotationally biased by the heavy stud 34 so as to maintain contact with the outer circumferential surface of the second rotating body 14. Also, the locking portion 32
As shown in FIG. 10, when one of the recesses 19a of the second rotating body 14 is positioned corresponding to the end of the safe ball discharge passage 12, a is engaged with the edge of another recess 19b and the second The position is set so as to prevent the rotating body 14 from rotating in reverse.

Therefore, when the transmission of the rotation of the first rotating body 13 is cut off and the second rotating body 14 stops due to the ejection of the safe ball, the locking portion 3 of the stopper member 32 is immediately stopped.
2a engages with the edge of another recess 19b to prevent the second rotating body 14 from reversing.
The concave portion 19a of the rotating body 14 can be reliably stopped at a position where safe balls can be dropped, and thereby a stable safe ball ejection processing operation can be performed. When the second rotating body 14 rotates in the direction of the arrow in FIG. 10, the other edge of the recess 19b comes into contact with the tapered surface of the locking portion 32a, as shown by the chain line in FIG. 34, thereby causing the second rotating body 1 to swing.
4 can be rotated freely.

A series of device parts such as the motor 15, the operating member 22, the lock piece 27, and the stopper member 32 are assembled into a box-shaped device frame 30.
The device frame 30 is removably attached to the lower part of the mechanism plate 2 with screws 31. This makes it possible to easily assemble and replace the safe ball discharge control device.

〔Effect of the invention〕

As explained above, the present invention fixes the first rotating body 13 to the motor shaft 16 of the motor 15, and
The second rotating body 14 is loosely attached to the motor shaft 16 and supported in a free state, and the first rotating body 1 is supported by a safety ball.
3 is transmitted to the second rotating body 14, and
In a safe ball ejection control device for a pachinko machine, in which the operation of releasing the restraint of the operating member 22 by the lock piece 27 and the operation of ejecting the prize balls are performed by the rotation of the second rotor 14, the second rotor 14 is stopped. When this happens, a stopper member 32 is placed on the edge of the recess 19.
Since the second rotary body 14 is prevented from reversing by engaging the locking portion 32a of the second rotary body 14, the corresponding positional relationship between the end of the safe ball discharge passage 12 and the concave portion 19 of the second rotary body 14 is distorted. It is possible to completely eliminate the drawbacks that occur, and to safely and reliably carry out the operation of discharging safe balls.

[Brief explanation of drawings]

The figures show one embodiment of the present invention, in which Fig. 1 is a schematic back view of a pachinko machine, Fig. 2 is a perspective view of the main parts, and Fig. 3 is a front view of the main parts as seen from the front side of the mechanism board. Figure 4 is a vertical cross-sectional side view of the main part, Figures 5 to 7
The figure is a front view partially cut away as seen from the rear side of the mechanism plate, illustrating the function, Figure 8 is a perspective view of the first rotating body, Figure 9 is a perspective view of the second rotating body, and Figure 10 is a perspective view of the second rotating body. This figure and FIG. 11 are explanatory views of the operation of the stopper member. 5... Prize ball discharge device, 12... Safe ball discharge passage, 13... First rotating body, 14... Second rotating body,
15...Motor, 16...Motor shaft, 18...Recess of first rotating body, 19...Recess of second rotating body, 2
0... Engaging portion, 20a... Roller shown as the engaging portion, 21... Cam surface, 22... Actuation member, 2
4... Protrusion, 25... Hook, 27... Lock piece, 32... Stopper member, 32a... Locking part.

Claims (1)

[Claims] 1. A pair of a first rotating body and a second rotating body are arranged concentrically and facing each other at the end of the safe ball discharge passage, and the first rotating body is fixed to the motor shaft of the motor. At the same time, a second rotating body is loosely fitted onto the motor shaft and supported in a free state, and the outer peripheries of the first rotating body and the second rotating body are aligned with each other so that the balls are not guided from the safe ball discharge passage. A recessed portion is provided in which safe balls to be released can be accommodated, and an operating member for operating the prize release device and a lock piece for engaging the operating member and restraining it from operating are provided near the second rotating body. The second rotating body is movably supported by a shaft, and the second rotating body has a protrusion that comes into contact with the lock piece and causes the operation member to release the restraint, and a protrusion that engages with the operation member to move the operation member and release the prize. In a safe ball ejection control device for a pachinko machine that is provided with an engaging part, a stopper member having a locking part at its tip is swingably provided, and the stopper member always has a locking part on the outer periphery of the second rotating body. The second rotary body is biased to rotate so as to maintain contact with the surface, and the second rotary body is prevented from reversing by engagement between the locking portion and the recessed portion of the second rotary body. Safe ball discharge control device for pachinko machines.