JPS6323113Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a ball detection device for a pinball game machine, and is designed to eliminate the need to replace the entire ball detection device even if a reed switch for detecting a ball breaks down.

For example, in a so-called mahjong ball machine that allows players to play mahjong with balls launched by a ball-striking handle, a switch case consisting of a pair of left and right split cases removably fixed to the bottom of a nailed board surface is installed laterally. A large number of switches are arranged, each of which has a ball path through which the ball passes, and a switch actuating member that swings backward when pressed by the ball passing through the ball path. When this occurs, a magnet attached to the operating member is brought close to a reed switch, and the reed switch detects the ball. However, in the past, the reed switch was assembled directly behind the switch actuating member of the switch case, so if the reed switch broke down, the entire ball detection device had to be replaced, which was very uneconomical.

The present invention has been developed to solve the above problems. Its characteristic is that a switch case is formed by fastening a pair of left and right split cases detachably,
In the ball detection device for a pinball game machine, a passageway is formed in the switch case for passing the ball, and a switch actuating member is provided behind the passageway, which has a magnet at its rear and is pressed by a ball passing through the passageway to swing backward, and a reed switch is provided behind the switch actuating member to detect the ball by the approach of the magnet when the switch actuating member swings backward. In the ball detection device for a pinball game machine, a mounting plate having the reed switch is incorporated behind the switch actuating member of the switch case so as to be removable by dividing the split case, In addition, connecting pins protruding from both ends of the reed switch are inserted into a mounting plate and protrude outward to the rear, the switch operating member 34 is provided with a ball receiving portion 34a protruding into the passage 23 for receiving the ball 3 passing through the passage 23, and a ball hitting portion 34b protruding downward from the ball receiving portion 34a, and a stopper 40 is provided behind the passage 23 in the switch case 18 and receives the ball hitting portion 34b so as to restrict the rearward swing of the switch operating member 34 at a position where the magnet 37 is parallel to and close to the limit switch 38.

Hereinafter, the present invention will be explained according to the illustrated embodiments. In FIGS. 1 to 3, 1 is a nailing board surface whose front surface is covered with glass 2, which has an unrestricted fall of the ball 3. A large number of obstacle nails 4 are installed, and a tile display board 5 is provided at the bottom.
The tile display board 5 has a large number of patterns 6 of mahjong tiles applied in the horizontal direction. Numeral 7 denotes ball receivers arranged horizontally in large numbers (26 pieces) at the bottom of the nailing board surface 1, and are arranged corresponding to each pattern 6 on the inside of the tile display board 5.
A certain number (14
When a ball 3) is launched, the ball 3 passes through the ball receiver 7 from the top of the board 1.

Reference numeral 10 denotes a printed circuit board, which is arranged behind the ball receivers 7 so as to span the entire length of each ball receiver 7, and is removably fixed to the nailing board surface 1 side with bolts 11 via spacers 12. Reference numeral 13 denotes a ball delivery case provided corresponding to each ball receiving portion 7, and as shown in FIG. 4, there are a pair of left and right split cases 13a, 13b.
are fixed to each other by bolt nuts 14,
Each ball delivery case 13 is the ball delivery case 1.
They are each removably fixed to the front surface of the printed circuit board 10 by screws 16 that are screwed into nuts 15 installed at the rear upper end of the balls 3, and the balls 3 that have entered the ball receivers 7 are allowed to pass through each ball delivery case 13. A first passageway 17 is formed. Reference numeral 18 indicates a switch case provided to correspond to each ball delivery case 13, and as shown in FIG.
a and 18b are fixed to each other by bolts and nuts 19. A mounting plate 20 is installed in the rear end of each switch case 18 in a state where it is removably fitted and fixed between the split cases 18a and 18b, and the mounting plate 20 can be removed by dividing the split cases 18a and 18b. be. Each switch case 18 is detachably fixed to the front surface of the printed circuit board 10 by a screw 22 screwed into a nut 21 installed in the center of a mounting plate 20. In addition, each switch case 1
8 is formed with a second passage 23 in the vertical direction through which the ball 3 that has passed through the first passage 17 passes. As shown in FIGS. 4 and 5, an engaging piece 24 is provided at the front end of the lower end of the ball delivery case 13 to protrude downward, and a pair of left and right fitting protrusions 25 are provided at the rear end thereof to protrude downward. and switch case 1
At the upper end of 8, a locking piece 26 is attached to the front end of the engagement piece 24.
It is located in front of and protrudes upward, and
A pair of left and right fitting recesses 27 corresponding to the fitting protrusions 25 are recessed at the rear end, and the engaging pieces 24 are connected to the second passageway 2.
It is fitted to the front end of the upper end of 3 so as to be immovable in the left and right direction,
The locking piece 26 is brought into contact with the engaging piece 24 so as to press it backward, and the fitting protrusion 25 is fitted into the fitting recessed part 27 so as to be immovable back and forth and left and right.
As a result, the ball delivery case 13 and the switch case 18 are positioned so that the passage paths 17 and 23 do not shift from each other, and the two screws 16 and
22 so that it can be firmly fixed to the printed circuit board 10. Reference numeral 28 denotes a swinging member built into each ball delivery case 13 so as to be able to swing freely around the horizontal shaft 29;
The ball passes through the first passageway 17 every time it swings back and forth. It is configured to limit the number of balls 3 to one. That is, when there is no ball 3 in the delivery section 30, the swinging member 28 swings due to the weight of the weight 32 so that its swing regulating section 31 comes into contact with the front wall of the first passageway 17 from the rear. Time delivery section 3
0 indicates that the ball 3 that has entered the first passing path 17 is in the delivery section 3.
When there is a ball 3 in the delivery section 30, the weight of the ball 3 causes the swinging member 28 to close the swinging restriction section 31. swings so as to contact the upper end of the rear wall of the second passageway 23 from the front, and at this time, the delivery section 30 causes the ball 3 to fall toward the second passageway 23, and the blocking section 33 1st on top of
The middle of the passageway 17 is closed so as to prevent the ball 3 from passing through. Reference numeral 34 denotes a switch operating member assembled into the switch case 18, and the switch operating member 34 has an upper end as a fulcrum and a lower ball receiving portion 34a.
The horizontal axis 3 moves in and out of the second passageway 23.
It is pivoted around 5 so that it can swing back and forth, and the horizontal axis 35
The ball receiving portion 34a is biased forward so as to protrude into the second passageway 23 by a coil spring 36 wound around the switch actuating member 34.
When the ball 3 passes through, it is pressed by the ball 3 and swings backward. Switch operating member 3
A ball contact part 34b extending downward from the ball receiving part 34a is protruded from the front lower end of the switch case 18.
Behind the second passageway 23 is a ball abutting part 34 so as to restrict the backward swing of the switch operating member 34 at a position where the ball abutment part 34b is parallel to the second passageway 23.
A stopper 40 for receiving b is provided. 3
7 is a magnet fitted and fixed to the rear of the switch operating member 34, and 38 is a reed switch fixed to the front of the mounting plate 20, which is located at the rear position of the magnet 37, and when the switch operating member 34 swings backward, the magnet 37 is moved. It is turned on when the ball approaches the ball 3, thereby detecting the ball 3 passing through the second passageway 23. 39 are connection pins protruding from both ends of the reed switch 38;
It is inserted through the mounting plate 20 and the printed circuit board 10 and protrudes rearward from the printed circuit board 10.

Reference numeral 41 denotes an upper ball passage that collects the balls 3 that have passed through the second passage 23, and is provided below so as to cover all of the switch cases 18, and is located on the bottom wall 41a of each switch case 18.
is tilted downward to the right. 42 is a lower ball passage, which is inclined at a small angle in the downward left direction, and
Its front and back width is formed to a size that allows the balls 3 to be stored in a row in the left and right direction, and the upper right end is connected to the upper ball passage 41.
A ball dispensing port 43 communicating with the lower right end of the ball and having a size capable of dispensing balls 3 one by one is formed at the lower left end. The rear portions of the upper ball passage 41 and the lower ball passage 42 are closed by a transparent plate 44 as shown in FIG. 6, and the transparent plate 44 is fixed to the board 1 side with bolts 45 and spacers 46. Reference numeral 47 denotes a first dispensing member provided below the lower ball passage 42 so as to close the ball dispensing port 43, and this has a ball hole 48 that communicates with the ball dispensing port 43 and can accommodate one ball 3, located above and below. It is provided in a penetrating shape. 49 is a first dispensing member 47
A second dispensing member is provided below the ball hole 48 so as to close the ball hole 48, and a through hole 50 is provided in a vertically penetrating manner at a position away from the ball hole 48 to the left. As shown in FIG. 6, the second dispensing member 49 is placed on a support base 51 fixed to the board surface 1 so as to be slidable in the left-right direction, and the first dispensing member 47 is placed on the second dispensing member 49 in the left-right direction. It is slidably placed on the The support base 51 has a first delivery path 52 corresponding to the through hole 50 and a second delivery path 5 corresponding to the ball outlet 43 and the ball hole 48.
3 are formed in a vertically penetrating shape, respectively. Reference numeral 54 denotes a first solenoid disposed on the left side of the first dispensing member 47, and an operating rod 55 pivotally connected to the first dispensing member 47.
During operation, the operating rod 55 is configured to retreat to the left and slide the first dispensing member 47 to the left to a position where its ball hole 48 communicates with the through hole 50. Reference numeral 56 denotes a second solenoid disposed below the first solenoid 54, which is activated after the game ends, and when activated, its operating rod 57 retreats, and the second solenoid is operated via a connecting rod 58 and a swinging rod 59 that are interlocked with the operating rod 57. The through hole 50 of the second dispensing member 49 is connected to the ball hole 48.
and is configured to be slid rightward to a position communicating with the second delivery path 53. That is, both ends of the connecting rod 58 are pivotally connected to the rear end of the operating rod 57 and the lower end of the swinging rod 59, respectively, and the midway portion of the swinging rod 59 is pivotably supported around the front-back axis 60. At the same time, its upper end portion is inserted into a recess 61 formed in the second dispensing member 49 so as to come into contact with the left end surface thereof. A tension spring 62 is connected between the first dispensing member 47 and the second dispensing member 49, and pulls the first dispensing member 47 to the right relative to the second dispensing member 49.

Reference numeral 64 denotes a delivery passage, which delivers the balls 3 that have fallen from the first delivery passage 52 to a counter 66 via an introduction passage 65. The counter 66 counts the balls 3 that have been sent out, displays the number of times the ball 3 has been hit again, and sends out the counted balls 3 to the payout passage 67. Payout passage 67
is inclined downward to the right so that its right end communicates with the waiting path 9 and allows the ball 3 to be delivered to the waiting path 9. Reference numeral 68 denotes a blocking member provided in a communicating portion between the dispensing passage 67 and the standby passage 9, and is configured to block off the dispensing passage 67 and the waiting passage 9 in a freely openable and closable manner.

Reference numeral 69 denotes a display device, which has a large number of display sections 70 in the horizontal direction, and each display section 70 is constituted by a fluorescent display tube, and the pattern of the mahjong tiles is variably displayed by a group of dots of the luminous body. . The display section 70 has 14 balls 3, that is, the number of balls 3, so that the display section 70 displays the pattern of the mahjong tiles corresponding to each ball receiving section 7 containing the balls 3. 71
is a reset switch provided corresponding to each display section 70, which is turned on when pressed to operate the first solenoid 54 for a certain period of time. 72 is a coin slot, 7
3 is a payment switch, 74 is a coin tray, and 75 is a return button.

According to the configuration of the above embodiment, when the ball 3 in the waiting path 9 is launched by the ball hitting handle 8, the launched ball 3 falls while being obstructed by a large number of obstacle nails 4, and falls to one of the ball receivers 7. fall into. Ball receiver 7
The ball 3 that has entered passes through here and enters the first passageway 17. At this time, due to the weight of the weight 32, the swinging member 2
Since the ball 8 is swinging forward as shown by the chain line, the ball 3 that has entered the first passageway 17 enters the delivery section 30. At this time, even if balls 3 fall consecutively into the same ball receiving part 7, only the first ball 3 will fall into the delivery part 30, since the delivery part 30 is large enough to accommodate one ball 3. The remaining balls 3 remain above the delivery section 30. The swinging member 28 swings backward as shown by the solid line due to the weight of the ball 3, and the delivery section 3
The balls 3 within 0 are made to fall from the delivery section 30 to the second passageway 23. At this time, the blocking portion 33 closes the first passageway 17 midway, and the ball 3 that then enters the ball receiving portion 7 is kept within the first passageway 17 . When the ball 3 that has fallen into the second passageway 23 passes through the second passageway 23, it presses the switch actuating member 34 protruding into the second passageway 23 as shown by the chain line, causing it to swing rearward. The reed switch 38 is turned on by the backward swinging of the switch operating member 34. When the ball 3 is released from the delivery section 30, the swinging member 28 swings forward as shown by the chain line by the weight 32, and the delivery section 30 becomes capable of storing the next ball 3. Further, when the ball 3 passes through the second passage 23, the switch actuating member 3
4 is swung forward as shown by the chain line by the bias of the coil spring 36, and the reed switch 38 is turned off. After that, the same operation is repeated for the next ball 3 that enters the ball receiving section 7. Therefore, even if the balls 3 enter the ball receiving part 7 continuously, the balls 3 enter the second passing path 2 at intervals.
3, the reed switch 38 can reliably detect the balls 3 one by one. If reed switch 38 fails, bolt nut 1
9 and split the switch case 18 into the split case 18.
By dividing it into parts a and 18b, the reed switch 38 can be easily replaced together with the mounting plate 20. Therefore, there is no need to replace the switch case 18 or anything else, and these can be used as they are, which is very economical. . In addition, the ball contact portion 34b at the lower end of the switch actuating member 34 allows the ball 3 passing through the second passage 23 to press the switch actuating member 34 in a backward swinging state for a long period of time. The ball 3 is reliably detected.

In the above embodiment, the backward swing of the switch actuating member 34 is restricted by the contact of the ball contact portion 34b with the stopper 40, but instead of this, as shown in FIG. 7, the ball contact portion 34b and the stopper 40 is not provided, and the screw 22 is connected to the reed switch 38.
Alternatively, the switch actuating member 34 may be made to protrude further forward, thereby restricting backward swinging of the switch actuating member 34.

According to the present invention, the mounting plate 20 having the reed switch 38 is installed behind the switch actuating member 34 of the switch case 18 so as to be removable by dividing the split cases 18a and 18b, and the mounting plate 20 has a reed switch 38 protruding from both ends thereof. Since the provided connecting pin 39 is inserted through the mounting plate 20 and protrudes outward to the rear, if the reed switch 38 breaks down, the reed switch 38 can be easily replaced together with the mounting plate 20, and the ball can be replaced easily. There is no need to replace the entire detection device, which is very economical.

Moreover, the switch actuating member 34 is provided with a protruding ball contact portion 34b extending downward from the ball receiving portion 34a, and the magnet 37 is located at a position parallel to and close to the limit switch 38 behind the passage 23 of the switch case 18. A stopper 40 is provided to receive the ball contact portion 34b so as to restrict the backward swinging of the switch actuating member 34, so that the ball 3 can move through the passageway 23.
When passing through the limit switch 3, the magnet 37
8, the switch actuating member 34 stops swinging, and as a result, even if the magnet 37 is small, it can be moved close to the limit switch 38 in as wide a range as possible. This makes it possible to reliably detect the passage of the ball 3 into the passageway 23. Moreover, since the ball contact portion 34b protrudes downward from the ball receiving portion 34a, the ball contact portion 34b holds the magnet 37 for as long as possible when the ball 3 passes through the passageway 23. The ball 3 can be held close to the limit switch 38, and passage of the ball 3 can be detected more reliably from this point as well. Also,
When the switch operating member 34 swings forward, the ball contact portion 34b is brought into contact with the front wall of the passageway 23, and the range of forward swinging of the switch operating member 34 can be restricted. Switch actuation member 34 without requiring any special member for regulation.
By suppressing the swinging range to the necessary minimum, the ball 3 can be detected reliably and quickly with a very simple structure, and its practical effects are significant.

[Brief explanation of the drawing]

Figure 1 is a front view showing one embodiment of the present invention;
The figure is a sectional view of the same side, Fig. 3 is a sectional view of the back of the same, Fig. 4 is a perspective view of the same ball delivery case, Fig. 5 is a perspective view of the same switch case, and Fig. 6 is a side sectional view of the dispensing member part. 7 are side sectional views showing other embodiments. 3...Ball, 18...Switch case, 18a, 18
b...Divided case, 20...Mounting plate, 23...Second passageway, 34...Switch operating member, 37...Magnet, 38
...Reed switch, 39...Connection pin.

Claims (1)

[Scope of utility model registration request] A switch case 18 is formed by removably fixing a pair of left and right split cases 18a and 18b, and a passage path 23 through which the ball 3 passes is formed in the switch case 18.
3, has a magnet 37 at the rear and a passageway 2
A switch actuating member 34 is provided behind the switch actuating member 34, which swings backward when pressed by the ball 3 passing through the ball 3. When the switch actuating member 34 swings backward, the ball 3 is detected by the approach of a magnet 37. In a ball detecting device for a pinball game machine in which a reed switch 38 is provided, a mounting plate 20 having the reed switch 38 is attached to the split cases 18a and 18b behind the switch actuating member 34 of the switch case 18.
Connecting pins 39 protruding from both ends of the reed switch 38 are inserted into the mounting plate 20 and protruded rearward, and the switch actuating member 34 is provided with a passageway 2.
A ball receiving portion 34a is provided for receiving the ball 3 passing through the passageway 23 protruding from the ball receiving portion 34.
A ball contact portion 34b extending downward from a is provided in a protruding manner,
A magnet 3 is placed behind the passage 23 of the switch case 18.
The stopper 4 receives the ball contact portion 34b so as to restrict the backward swinging of the switch operating member 34 at a position where 7 is parallel to and close to the limit switch 38.
A ball detection device for a pinball game machine, characterized in that a zero is provided.