JPH11128453A - Shooting ball game machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a ball feeding mechanism from excessively supplying game balls when the feed to a shooting motor is stopped. SOLUTION: A drive cam 65 is fixed to the output shaft 64 of a shooting motor, an engaging groove 70 is formed on the mounting part 65a of the drive cam 65 to form a groove wheel 71, and a claw member 72 having a locking claw 74 making contact with the circumferential surface of the groove wheel in the energized state is provided. The locking claw and the engaging groove are formed in sawtooth form so that the locking claw is released from the engaging groove to allow the rotation of the drive cam when the drive cam 65 is normally rotated, and the locking claw 74 remains engaged with the engaging groove to arrest the rotation of the drive dam when the drive cam is reversely rotated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ball-and-ball game machine such as a pachinko game machine, and more particularly to an improvement in a hit ball launching device.

[0002]

2. Description of the Related Art In a hit ball launching apparatus of a conventional ball game machine, for example, a pachinko game machine, a drive cam is fixed to an output shaft of a motor which is an electric rotary drive source, and a cam contact member is rotated by rotation of the drive cam. When the drive cam is rotated to a predetermined position and disengages from the cam abutting member of the firing punch, the firing punch is moved forward by the biasing force of the spring. It was configured to fire a game ball at the firing position. And the ball supply mechanism that supplies the game ball to the firing position of the firing rail every time the firing punch rotates,
A ball supply member for placing one game ball and moving up and down, and an interlocking lever for rotating the ball supply member in accordance with the rotation of the launching punch are provided, and the interlocking lever and a driving rod attached to the launching punch are engaged. Each time the launching punch rotates in the retreating direction, the interlocking lever is turned by the driving rod, the ball feeding member is turned by the turning of the interlocking lever, and one game ball is turned by the turning of the ball feeding member. It is configured to be supplied onto the firing rail when it is received and descends.

When the player turns the flight distance adjusting handle while touching the touch sensor of the firing operation section, power is supplied from the firing control device to the motor, and the power is supplied to operate the motor, so that the motor is operated. The drive cam rotates against the bias. When the driving cam rotates, the cam contact member rotates by receiving the rotational force of the driving cam, so that the coaxially fixed firing punch rotates in a direction away from the firing position.
The driving rod rotates the interlocking lever while the firing punch retreats and rotates the ball supply member to supply one game ball to the firing rail. When the driving cam has sufficiently rotated the cam contact member to reach a predetermined position, the cam contact member is disengaged from the driving cam, so that the firing punch is rotated back, that is, rotated forward by the urging force of the spring, and fired. The game ball supplied to the shooting position of the rail is fired by the firing portion of the firing punch, and fires toward the game area. The launching punch that fires the game ball rotates the drive cam and contacts the cam abutting member again to rotate.Thus, while the player performs the firing operation, the motor continuously rotates to perform the above-described firing operation. At the same time, the ball supply mechanism is driven to supply game balls one by one to the firing rail.

When the player releases his / her hand from the touch sensor of the firing operation unit or operates the stop button, the supply of power from the firing control device is stopped. Stop and lose drive power.
In this state, the drive cam should stop rotating because the driving force of the motor does not act.

[0005]

However, when the cam contact member is in contact with the drive cam, the biasing force of the spring acts on the drive cam via the cam contact member.
Depending on the positional relationship between the driving cam and the cam contact member, even when the power supply to the motor is stopped, the driving cam may be reversely rotated at that point by the urging force of the spring. When the drive cam rotates in the reverse direction, not only does the motor rotate in the reverse direction, but also the firing punch returns and rotates, which may cause inconvenience.

That is, when the firing punch returns and rotates, the driving rod may rotate the interlock lever again to raise and lower the ball supply member and supply the game ball again. Therefore, two game balls are supplied on the firing rail. When the player resumes the firing operation in this state, the two front and rear game balls are simultaneously fired, so that the firing direction of the hit ball is disturbed, or the flight distance is short, and in most cases,
It becomes a ball of foul, and there is an inconvenience that normal firing is not performed.

The present invention has been proposed in view of the above circumstances, and has as its object to provide a ball supply mechanism which does not supply extra game balls even when power supply to an electric rotary drive source is stopped. It is intended to provide a ball game machine.

[0008]

SUMMARY OF THE INVENTION The present invention has been proposed to achieve the above object, and the present invention is characterized in that it is supported by a rotation support shaft so as to be reciprocally rotatable, and is provided with a launch rail. An electric punch having a repelling portion for projecting a game ball by entering the firing position, and a firing punch urged by a spring in a direction in which the repelling portion rotates toward the firing position, and an electric drive provided with a drive cam on an output shaft. And a cam contact member which rotates in a direction away from the firing position by a forward rotation of the drive cam in contact with the drive cam and against the urging force of the spring by contact with the drive cam. A reverse rotation prevention mechanism for mechanically preventing reverse rotation of a driving cam in a ball game machine having a device and a ball supply mechanism for mechanically receiving the rotating power of a launching punch and supplying a game ball to a firing position. And a ball-and-ball game machine.

According to a second aspect of the present invention, in addition to the configuration of the first aspect, the reverse rotation preventing mechanism forms an engagement groove on a peripheral surface and rotates with the drive cam. And a claw member having a locking claw that comes into contact with the surface in a state of being urged. When the driving cam rotates forward, the locking claw is disengaged from the engagement groove to allow rotation of the driving cam and rotate in the reverse direction. A ball game machine characterized in that at least one of the locking claw and the engagement groove is formed in a sawtooth shape so that the rotation of the drive cam is prevented while the locking claw is still locked in the engagement groove. It is.

According to a third aspect of the present invention, in the ball game machine of the first or second aspect, the drive cam and the sheave are integrally formed coaxially.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. In the following description, a pachinko gaming machine 1, which is a typical ball-and-ball gaming machine, will be described as an example.

First, the overall configuration of the pachinko gaming machine 1 will be briefly described. As shown in FIG. 1, the exemplified pachinko gaming machine 1 is schematically constituted by a pachinko machine main body 2 and a card unit 3 for reading and writing information stored in a game card. The pachinko machine main body 2 is surrounded by a machine frame, and a frame-shaped front frame 4 is attached to the front of the machine frame so as to be openable and closable. A game board storage frame (not shown) is fixed to the back of the front frame 4 from the rear, and a game area 5 partitioned by a partition member on the surface is formed in the game board storage frame, and the variable display device 6 is formed. A game board 9 provided with a game prize tool 7 and the like is stored from the front, and a frame board 10 is attached to a lower portion of the game board storage frame.

As shown in FIG. 2, the frame board 10 has a game board mounting portion 11 for mounting the game board 9 formed on an upper surface thereof, and a firing guide for guiding the fired game balls on the front surface. The rail 12 is disposed in an inclined state, and a ball stopping member 13 is integrally molded slightly above the inclined lower end of the firing rail 12 so that the game ball supplied on the firing rail 12 hits the ball stopping member 13 and stops. The standby position is defined as a firing position 14, and the firing device mounting portion 1 is located below the firing position 14.
5, and the launching device 16 is attached to the launching device mounting portion 15 from the rear side.

On the front side of the front frame 4, a frame-shaped transparent member holding frame is provided in which a front glass (a kind of transparent member) is held in a window portion and a resin decoration plate is attached to an opening edge portion to be decorated. An openable / closable panel 22 having an upper plate 21 on the front surface is openably / closably mounted below the transparent member holding frame 20, and a lower plate 23 and a hitting / launching operation are provided below the open / closed panel 22. A part 24 is provided. On the back side of the opening / closing panel 22, a ball supply mechanism 25 for supplying game balls introduced from the upper plate 21 in a line to the firing rail 12 one by one is provided.

As shown in FIGS. 3 to 5, the ball supply mechanism 25, on the back side of the open / close panel 22, places the game ball introduced from the upper plate 21 in front of the inclined lower part of the firing rail 12 (in front of the player). Is formed, and a substantially U-shaped sphere supply member 32 is connected to the other end of the ball introduction path 30 with the front end entrance of the sphere storage section 31 facing the opening at the inclined lower end of the sphere introduction path 30. The ball supply member 3 is provided so as to be swingable about the attachment portion 33.
A lift 35 of the interlocking member 34 is disposed below the lower part 2. The ball supply member 32 is pivotally mounted on the opening / closing panel 22 side, and a lift portion 35 that moves up and down the ball supply member 32 is provided on the frame board 10 side. That is, the launch rail 1
2, a shaft 36 is rotatably provided in a state penetrating the frame board 10 back and forth, and a lift portion 35 is fixed in a substantially horizontal direction to a front end of the shaft 36 on the player side, and a rear end. , The upper end of the arc-shaped interlocking lever 37 is fixed. Therefore, the interlocking member 34 includes the shaft 36 and the lift 3
5 and the interlocking lever 37, and the interlocking lever 3
7 is brought into contact with a driving rod 41 provided on the launching punch 40, and the interlocking lever 37 mechanically receives the turning power of the driving rod 41 and reciprocates around the shaft 36.

In the ball feeding mechanism 25 having the above-described configuration, in a state where the resilient portion 42 of the firing punch 40 is in the firing position 14 (the most advanced position shown in FIG. 8), FIG.
As shown in the figure, since the lift portion 35 is at the most lowered position, the ball supply member 32 is also at the most lowered position. In this position, the upper ball formed at the upper end of the ball storage portion 31 of the ball supply member 32 The downflow prevention portion 43 faces the opening of the ball introduction path 30 and suppresses the flow of the earliest ball in the ball introduction path 30. In this state, as shown in FIGS. 4 and 9, when the launching punch 40 is retracted and the driving rod 41 slightly rotates the interlocking lever 37 clockwise in FIG. 4, the lift 35 raises the ball supply member 32 slightly. Then, the upper ball downflow prevention portion 43 comes off the opening of the ball introduction path 30. Therefore, only one of the earliest game balls in the ball introduction path 30 enters the U-shaped ball storage portion 31 of the ball supply member 32, and the driving rod 41 rotates by the firing punch 40 further retreating. The lift 35 further rises to reach the highest position (FIG. 5). Even when the ball reaches this position, the ball in the ball storage section 31 suppresses the falling of the earliest ball in the ball introduction path 30. Note that the bottom surface of the ball storage unit 31 is
Since the ball is inclined downward toward the second side, the ball that has entered the ball storage unit 31 tries to roll toward the firing rail 12 side,
Since there is a partition wall between the ball supply member 32 and the firing rail 12, the ball in the ball storage section 31 does not roll and roll out due to the partition wall.

With the lift 35 raised to the highest position in the above-described state, the firing punch 40 reaches the rearmost position (FIG. 10), and at the next moment, the firing punch 40 vigorously moves forward by the urging of the spring. When the launching punch 40 rotates forward, the driving rod 41 also returns, so the interlocking lever 37 returns and rotates, and the lift section 35 descends, whereby the ball supply member 32 descends, and the firing punch 40 moves to the most advanced position. When it returns to, it descends to the most descending position shown in FIG. When the ball storage section 31 of the ball supply member 32 is lowered to the lowest position, the ball storage section 31 is located beside the ball supply port 44 opened in the partition wall. Rolls and falls onto the firing rail 12 through the ball supply port 44.

The game balls supplied onto the firing rail 12 in this manner roll due to the inclination of the firing rail 12 and move to the firing position 14 where they stop.

The ball supply mechanism 25 repeats the above-described movements, so that the game balls introduced from the upper plate 21 are
Each time the firing punch 40 reciprocates once, it can be supplied onto the firing rail 12 one by one. And launch position 1
The game ball supplied to 4 is repelled by the repelling portion 42 of the firing punch 40.

Next, the hit ball launching device 16 will be described. As shown in FIGS. 6 and 7, the hitting ball launching device 16 has a bearing provided in a cylindrical bearing portion 51 protruding from the front side (the player side) of a base member 50 made of a metal plate. The pivotal support shaft 52 rotatably supports the pivotal support shaft 52 and protrudes to the back side of the base member 50.
And a spring (winding spring) 53 is loosely fitted to the outside of the bearing 51, and a ring-shaped strength adjusting gear 54 is loosely fitted to the base of the bearing 51.
An end 53a of the spring 53 on the base member 50 side is engaged in an engagement groove formed in the strength adjusting gear 54, and the other end 53b of the spring 53 is provided at an end of the rotation support shaft 52. The lever is fixed to the lever of the initial biasing force adjusting mechanism in the torque cap 55. The cam of the initial biasing force adjusting mechanism for rotating the lever is connected to one end of the adjusting shaft 56 inserted into the rotating support shaft 52, and is connected to the other end of the adjusting shaft 56 protruding to the rear side of the base member 50. An adjustment knob 57 is provided.
When the adjustment knob 57 is rotated, the lever in the torque cap 55 is rotated by rotating the cam in the torque cap 55, whereby the position of the other end 53 b of the spring 53 can be adjusted. Therefore, when the adjustment knob 57 is rotated, the initial biasing force of the spring 53 can be adjusted, and the initial position of the flight distance can be adjusted. Since a holding mechanism such as a serration or a ratchet is provided behind the adjustment knob 57, the position of the adjustment knob 57 can be held at the adjusted position.

Since one end 53a of the spring 53 is engaged with the strength adjusting gear 54, the strength adjusting gear 5
When the pivot 4 is rotated, the position of one end of the spring 53 can be changed, whereby the urging force of the spring 53 can be changed, and the flight distance of the hit ball can be adjusted by this change. In the present embodiment, as shown in FIG. 6, an idle gear 58 is rotatably mounted on the base member 50 while being engaged with the strength adjusting gear 54, and an engagement groove 59 is formed on a side surface of the idle gear 58. Then, a joint 29 having an engagement claw 28 is attached to the tip of a shaft 27 extending from the handle 26 of the firing operation section 24, and the engagement claw 28 of the joint 29 is engaged in an engagement groove 59 of the idle gear 58. I have. Therefore, when the handle 26 of the firing operation section 24 is turned, the idle gear 58 is turned in accordance with the turn,
As a result, the urging force of the spring 53 can be increased or decreased, whereby the flight distance of the hit ball can be adjusted.

As described above, the firing punch 40 is constantly urged by the urging force of the spring 53 in a direction in which the resilient portion 42 at the tip enters the firing position 14, and the firing punch 40 is separated from the firing position 14. In this case, the rotational force of the pulse motor 60 provided as an electric rotary drive source is used. For this reason, the firing punch 40 is provided with a cam contact member 61 that rotates in a direction away from the firing position 14 against the urging force of the spring 53. The cam contact member 61 may have any configuration, but in the present embodiment, the rotation support shaft 5
The driven arm 62 is fixed on the same axis as the driven arm 62.
The roller 63 is rotatably mounted on the front end of the second roller 2 in a rotatable state. The roller 63 of the cam contact member 61 is connected to a pulse motor 60 as an electric rotary drive source.
The drive cam 65 attached to the output shaft 64 can be contacted.

The motor 60 is mounted on the outer surface of a motor base 66 having legs, with the output shaft 64 facing the opening of the motor base 66 toward the base member 50. The driving cam 65 is fixed. The roller 6 is provided on the outer peripheral surface of the drive cam 65.
Both are arranged so that 3 can abut.

The motor 60 rotates forward (to the right in FIG. 8).
When the drive cam 65 rotates forward, as shown in FIG.
The cam surface relatively close to the center of the drive cam 65 contacts the roller 63 of the firing punch 40 stopped at the most advanced position by contacting the stopper 67, and when the drive cam 65 further rotates, the roller 63 comes into contact with the cam surface. The cam contact member 61 is pressed.
Is rotated, and the rotation of the cam contact member 61 causes the ejection punch 4 to rotate.
0 retreats in the direction away from the firing position 14 against the urging force of the spring 53 (FIG. 9). Then, when the driving cam 65 further rotates and the roller 63 comes into contact with the cam surface farthest from the center (FIG. 10), the firing punch 40 becomes the last retreat position, and when the driving cam 65 further rotates in this state, Since the roller 63 comes off the cam surface, the firing punch 4
0 is vigorously returned and rotated by the urging force of the spring 53,
In other words, the player moves forward, and the resilient portion 42 repels the game ball at the firing position 14.

When the launching punch 40 hits the game ball, it comes into contact with the stopper 67 and stops at the most advanced position.
The stopped state is maintained until the roller 5 rotates and the roller 63 comes into contact with the cam surface of the drive cam 65. Since the driving cam 65 continues to rotate, the firing punch 40 repeats the above-described retreating and forward-moving rotations, whereby the game supplied to the firing position 14 can be fired one after another.

The hitting ball launching device 16 according to the present invention is provided with a reverse rotation preventing mechanism for mechanically preventing the reverse rotation of the driving cam 65. In the present embodiment, a mounting portion of the driving cam 65 to the output shaft 64 is provided. The cylinder at the base end of a certain cam is defined as a part thereof.

That is, as shown in FIG. 8B, an engaging groove 70 is formed on the outer peripheral surface of the fixing cylinder 65a of the driving cam 65, and the outer peripheral surface on which the engaging groove 70 is formed is inserted into a groove wheel 71. Function as In other words, the drive cam 65 and the sheave 71 are integrally formed coaxially. One end of a claw member 72 constituting a part of the reverse rotation preventing mechanism is pivotally attached to the surface of the base member 50 by a shaft 73 so as to be rotatable, and a locking claw 74 formed at the tip of the claw member 72 is attached. On the outer peripheral surface of the groove wheel 71,
The shaft 73 is brought into contact with the shaft 73 while being urged by an urging force of a spring (not shown). Note that the locking claw 74 is
The biasing means for pressing against the outer peripheral surface of the spring may be a spring or its own weight.

The reverse rotation preventing mechanism allows the locking pawl 74 to be disengaged from the engaging groove 70 when the driving cam 65 rotates forward and allows the driving cam 65 to rotate.
It is necessary to prevent the rotation of the drive cam 65 while keeping the lock in the engagement groove 70. Therefore, in the present embodiment, FIG.
As shown in (c), since the right rotation is the forward rotation, the one surface 70a of the engagement groove 70 which is the forward by the forward rotation is set to an angle close to the virtual radiation from the rotation center (the center of the output shaft 64). And the other surface 70b of the rear engaging groove 70 is formed on a surface (that is, the inclined surface 70b) having an angle that is greatly inclined with respect to the virtual radiation, and is formed on the upright surface 70a. And the inclined surface 70b form a saw-tooth shape. The locking claw 74 that engages with the engagement groove 70 is also provided with the engagement groove 7.
It is formed in a sawtooth shape according to the shape of 0.

Therefore, when the drive cam 65 rotates forward and the positions of the engagement groove 70 and the locking claw 74 match, the locking claw 7
4 is locked in the engagement groove 70, but when the drive cam 65 is further rotated, the locking claw 74 is moved to the inclined surface 7 of the engagement groove 70.
0b, and the ascending claw 74 is in contact with the engaging groove 7 because the ascending claw 74 contacts the inclined groove 74b.
The rotation of the drive cam 65 is deviated from zero. And
The resistance required for the locking claw 74 to be disengaged from the engagement groove 70 is an extremely small force. Therefore, the drive cam 65 can continue to rotate stably as long as it rotates forward.

On the other hand, when the driving cam 65 is rotated in the reverse direction, the locking claw 74 is locked in the engagement groove 70 when the position of the engagement groove 70 matches the position of the locking claw 74. When the drive cam 65 tries to rotate in the reverse direction, for example, in the state shown in FIG. 9 (b), the upright surface 70a of the engaging groove 70 that comes into contact with the drive cam 65 is engaged with the upright surface 70a. The upright surface 74a of the pawl 74 is hooked, and the drive cam 65 is prevented from rotating in the reverse direction and stops at this position. Therefore, the driving cam 65 does not rotate in the reverse direction.

The sheave 71 according to the present embodiment includes:
The driving rod 41 of the launching punch 40 swings the ball supply member 32 to supply one game ball from the ball introduction path 30 and then returns (turns backward) and returns again immediately before the angle (position) for receiving the game ball. The engagement groove 70 is formed at a position where the locking claw 74 is locked by the above. For this reason, the player releases his / her hand from the touch sensor of the firing operation unit 24, returns the handle 26 and turns off the firing switch, and so on.
Even if the power supply to the power supply is stopped and the driving force is lost and the urging force of the spring 53 is unilaterally acting on the driving cam 65, the driving cam 65 may be rotated reversely by the urging force of the spring 53. Absent. In other words, even if the player's firing operation is stopped, the situation in which the driving cam 65 rotates in the reverse direction and the ball supply mechanism 25 supplies the game balls in an overlapping manner is prevented by preventing the driving cam 65 from rotating in the reverse direction. It is prevented by.

In the embodiment shown in the drawings, the engagement groove 7
Although both the 0 and the locking claw 74 are formed in a sawtooth shape, if at least one of them is formed in a sawtooth shape, the above-described reverse rotation preventing function is exhibited. Further, the groove wheel 71 may be configured to form a plurality of engagement grooves 70 so as to prevent the reverse rotation of the drive cam 65 even when the player stops the firing operation at any position. . Then, the sheave 71 may be formed separately from the drive cam 65 and assembled separately to the output shaft 64. Further, the drive cam 65 and the sheave 71 do not necessarily need to be provided coaxially, and may be provided at a position where the reverse rotation of the drive cam 65 can be prevented. For example, it may be provided on a mechanical power transmission element such as an intermediate shaft that connects between the motor and the speed reducer.

However, when the driving cam 65 rotates in the reverse direction and causes inconvenience, the ball supply mechanism 25 is actuated again to supply the overlapped balls. What is necessary is just to make it possible to prevent reverse rotation. When the groove wheel 71 is integrally formed on the drive cam 65 coaxially, the number of parts can be minimized, and it is not necessary to adjust the position of the engagement groove 70 and the position of the drive cam 65 each time. Work efficiency in the assembly work can be improved.

The electric rotary drive source for rotating the drive cam 65 is not limited to the above-described pulse motor 60, but may be a general DC or AC motor. The output shaft 64 is not limited to the axis of the firing motor 60 itself, and may be the output shaft 64 of the speed reducer as long as it has a speed reducer.

Further, the ball supply mechanism 25 includes the launching punch 4
Any configuration may be used as long as it can mechanically receive the rotating force of 0 and supply the game ball to the launch position 14, for example,
When the ball supply member 32 moves up, the game ball is fired at the firing position 14.
It may be supplied to the side.

The reverse rotation preventing mechanism for mechanically preventing the reverse rotation of the driving cam 65 is not limited to a so-called ratchet mechanism including the grooved wheel 71 and the locking claw 74, and the posture is changed according to the rotation direction. Alternatively, a one-way clutch using a cam, a one-way clutch using the tightening force of a coil spring, or the like may be used. In addition, the groove wheel 71 of the reverse rotation prevention mechanism has an engagement groove 70 formed on the peripheral surface,
As long as it rotates together with the drive cam 65, it is not necessary to form the engaging groove 70 on the outer peripheral surface, but it may be a sheave 71 having the engaging groove 70 formed on the inner peripheral surface. The claw member 72 may have any configuration as long as it has a locking claw 74 that comes into contact with the peripheral surface of the sheave 71 while being urged.

The present invention is not limited to the pachinko gaming machine 1 described above, but may be a gaming machine having any configuration as long as it plays a game by bouncing a game ball. For example, a sparrow ball game machine, an arrangement ball game machine, or the like may be used.

[0038]

According to the present invention as described above, the following effects can be obtained. According to the first aspect of the present invention, a reverse rotation preventing mechanism for mechanically preventing reverse rotation of the drive cam for rotating the firing punch in the direction away from the firing position by moving the firing punch by the urging force of the spring is provided. Even if the power supply to the electric rotary drive source that rotates the drive cam is stopped by, for example, stopping the firing operation by the user, the drive cam does not reversely rotate. Therefore, even if a ball supply mechanism that mechanically receives the rotating force of the launching punch and supplies the game balls to the launch position is provided, it is possible to prevent the supply of extra game balls by the reverse rotation of the drive cam. Can be. For this reason, when the player resumes the firing operation, it is possible to prevent inconvenience such as the launching punch hitting a plurality of game balls and the hit ball becoming foul.

According to the second aspect of the present invention, the reverse rotation preventing mechanism has an engaging groove formed on the peripheral surface, and the groove wheel which rotates together with the driving cam, and the reverse rotation preventing mechanism is urged against the peripheral surface of the groove wheel. A claw member having a locking claw that comes into contact with the locking claw. When the driving cam rotates forward, the locking claw is disengaged from the engagement groove to allow rotation of the driving cam, and when the driving cam rotates reversely, the locking claw is engaged with the engagement groove. Since at least one of the locking claw and the engagement groove is formed in a sawtooth shape so as to prevent the rotation of the drive cam while being locked,
The structure of the reverse rotation preventing mechanism can be simplified, and the reverse rotation preventing function is reliably exhibited.

According to the third aspect of the present invention, since the driving cam and the groove wheel are integrally formed coaxially, the structure of the reverse rotation preventing mechanism can be simplified, and the driving cam and the groove are formed in the assembling process. The trouble of adjusting the positional relationship with the car can be omitted, and the positional relationship between the two can always be maintained accurately. In particular, when the number of engagement grooves formed on the sheave is small, the effect of eliminating the necessity of performing the alignment work is remarkable.

[Brief description of the drawings]

FIG. 1 is a front view of a pachinko gaming machine.

FIG. 2 is a perspective view showing an attached state of the hit ball firing device.

FIG. 3 is a front view of a ball supply mechanism.

FIG. 4 is a front view of a ball supply mechanism.

FIG. 5 is a front view of a ball supply mechanism.

FIG. 6 is a perspective view of a hit ball launching device.

FIG. 7 is a cross-sectional view showing the internal structure of the hit ball launching device.

8A is a front view of the hitting ball launching device, FIG. 8B is a front view of the reverse rotation prevention mechanism in the state shown in FIG.
(C) is an enlarged front view of an engagement groove and a locking claw.

9A is a front view of the hit ball launching device, and FIG. 9B is a front view of the reverse rotation prevention mechanism in the state shown in FIG. 9A.

10A is a front view of the hit ball launching device, and FIG. 10B is a front view of the reverse rotation preventing mechanism in the state shown in FIG.

FIG. 11 is a schematic explanatory view of a hit ball launching device showing a positional relationship between a ball supply member and an interlocking member of the ball supply mechanism.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pachinko gaming machine 2 Pachinko machine main body 3 Card unit 4 Front frame 5 Gaming area 6 Variable display device 7 Prize-winning tool 9 Gaming board 10 Frame board 11 Gaming board placement part 12 Launch rail 13 Ball stop member 14 Launch position 15 Launching device mounting Unit 16 hitting / launching device 20 transparent member holding frame 21 upper plate 22 opening / closing panel 23 lowering plate 24 hitting / launching operation unit 25 ball supply mechanism 26 handle 27 handle shaft 28 engaging claw 29 joint 30 ball introduction path 31 ball storage unit 32 ball Supply member 33 Shaft attachment part 34 Interlocking member 35 Lift part 36 Shaft 37 Interlocking lever 40 Launching punch 41 Drive rod 42 Resilient part 43 Ball supply port 50 Base member 51 Bearing part 52 Rotation support shaft 53 Spring 54 Strength adjustment gear 55 Torque Cap 56 adjustment shaft 57 adjustment knob 58 idle gear 59 Groove 60 pulse motor 61 the cam contact member 62 driven arm 63 roller 64 output shaft 65 driving cam 66 motor base 70 engaging grooves 71 grooved pulley 72 the pawl member 73 shaft 74 locking claw

Claims (3)

[Claims] 1. A reciprocatingly rotatably supported by a rotation support shaft, a resilient portion for projecting into a firing position of a firing rail and repelling a game ball, and a resilient portion is directed toward a firing position by a spring. A firing punch urged in the rotating direction, an electric rotary drive source provided with a driving cam on the output shaft, and a firing punch against the urging force of the spring due to forward rotation of the driving cam in contact with the driving cam. A cam contact member that rotates in a direction away from the firing position, a hitting ball firing device, and a ball supply mechanism that mechanically receives the turning force of the firing punch and supplies game balls to the firing position. A ball game machine characterized in that a reverse rotation prevention mechanism for mechanically preventing reverse rotation of a drive cam is provided in the ball game machine. 2. The reverse rotation preventing mechanism has an engaging groove formed on a peripheral surface thereof, and a pawl having a groove that rotates together with a driving cam and a locking pawl that comes into contact with the peripheral surface of the groove wheel in a urged state. When the drive cam rotates forward, the locking claw is disengaged from the engagement groove to allow rotation of the drive cam, and when the drive cam rotates reversely, the drive is performed while the locking claw is locked in the engagement groove. The ball game machine according to claim 1, wherein at least one of the locking claw and the engagement groove is formed in a sawtooth shape so as to prevent rotation of the cam. 3. The ball game machine according to claim 1, wherein the drive cam and the sheave are integrally formed coaxially.