JPH10337354A - Pachinko ball detector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a pachinko ball detector from being mounted on the mounting part of the detector, turning the rear surface of the pachinko ball detector out. SOLUTION: A part 79 for preventing a detector from being inversely inserted is formed by cutting one corner of a ball passage 77 of this pachinko ball detector 55 diagonally. A triangle protrusion 80 is protruded on one corner of the mounting part 81 of the detector. If the pachinko ball detector 55 is mounted in the right direction, then the part 79 for preventing a detector from being inversely inserted matches the triangle protrusion 80, so that the pachinko ball detector 55 can be inserted into the mounting part 81 of the detector, else the pachinko ball detector 55 can not inserted because the corner of the pachinko ball detector 55 hits against the triangle protrusion 80.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a pachinko ball detector. More specifically, the present invention relates to a pachinko ball detector used in a pachinko machine such as a pachinko gaming machine, for detecting a winning of a shot pachinko ball, counting a pachinko ball, and the like.

[0002]

[Prior art]

(Distinction between front and back of pachinko ball detectors) Conventionally, a contact ball type micro switch, a non-contact type electronic switch, etc. have been used as a pachinko ball detecting means in a winning ball detection device of pachinko machines and a pachinko ball counting device. Is used. As shown in FIG. 1, a pachinko ball detector 1 using a contact type microswitch is disclosed in, for example,
No. 028), the cantilevered sensing lever 4 faces the ball passage 3 provided in the casing 2, and the pachinko ball P passes through the ball passage 3.
When the sensing lever 4 is pushed when passing through, the movable contact 6 of the micro switch 5 is pushed and retracted, the micro switch 5 is turned on, and the pachinko ball P is detected.

The angle of the sensing lever 4 in the direction of movement of the pachinko ball P is such that the sensing lever 4 provided on such a pachinko ball detector 1 operates by its own weight of the pachinko ball P that has entered the ball path 3. They are arranged at an angle of 90 ° or less. Therefore, when the pachinko balls P enter the ball passage 3 from the opposite direction, the pachinko balls P may collide with the sensing lever 4 and damage the sensing lever 4. Therefore, in such a contact point type pachinko ball detector 1, there is a distinction between front and back, and the passing direction of the pachinko ball P is generally limited to only one direction. Needed to be aware of the front and back.

As a non-contact type pachinko ball detector, a proximity switch which has a detection coil and an oscillation circuit and detects a pachinko ball by electromagnetic induction, and a photo switch (photocoupler) which has a light projecting / receiving element. Is commonly used. As a non-contact pachinko ball detector using a proximity switch, there is one disclosed in, for example, Japanese Utility Model Publication No. 4-22515. This is shown in FIG. In this pachinko ball detector 11, a detection coil 14 is arranged around a ball passage 13 provided in a casing 12, and an electronic circuit 15 such as an oscillation circuit and a signal processing circuit mounted on a circuit board is provided. Is housed in the casing 12. When the pachinko ball passes through the detection coil 14, the oscillation frequency of the oscillation circuit changes to detect the pachinko ball.

In such a proximity switch type pachinko ball detector 11, since the detection coil 14 is generally arranged at a position deviated from the center of the ball passage 13, the approach direction in which the pachinko ball enters the ball passage 13. The position at which the detection output of the pachinko ball detector 11 is turned on after the pachinko ball enters the ball passage 13 is different. For this reason, even in the proximity switch type pachinko ball detector 11, the passing direction of the pachinko ball is determined to be one direction, and it is necessary to pay attention to the distinction between the front and the back when assembling the pachinko machine.

Similarly, a photo-switch type pachinko ball detector (not shown) having a built-in light-emitting element and a light-receiving element,
Since the light emitting position of the light emitting element and the light receiving surface of the light receiving element are arranged at a position deviated from the center of the ball passage, the pachinko ball enters the ball passage depending on the approach direction in which the pachinko ball enters the ball passage. The position where the detection output of the pachinko ball detector is turned on afterwards is different. For this reason, even in the photo switch type pachinko ball detector, the passing direction of the pachinko ball is determined in one direction, and it is necessary to pay attention to the distinction between the front and the back when mounting the pachinko ball on the pachinko machine.

Further, since the pachinko balls are charged with static electricity by rolling or flying around in the pachinko machine, when the pachinko balls charged with static electricity pass through the pachinko ball detector, they are built into the pachinko ball detector. When static electricity is discharged to an electronic circuit such as an IC, the built-in electronic circuit is damaged. For this reason, as shown in FIGS. 1 and 3, a shield plate 16 such as a copper plate is built in the casing 12 on the whole of the pachinko ball entry side than the electronic circuit 15, and the shield plate 16 is connected to the ground pattern of the electronic circuit 15. And the electrostatic discharge hole 1 on the surface of the casing 12 on the pachinko ball entry side.
7 is open. In such a pachinko ball detector 11, static electricity carried by the pachinko ball is forcibly absorbed by the shield plate 16 through the electrostatic discharge hole 17, so that the electronic circuit 15 is protected from damage due to the static electricity.

In a pachinko ball detector having such an electrostatic protection function, the electronic circuit cannot be protected from static electricity unless the shield plate is located closer to the pachinko ball entrance than the electronic circuit. When assembling, it was necessary to pay attention to the front and back of the pachinko ball detector.

Further, since the pachinko balls are likely to collide with and be worn near the entrance of the ball passage, only a member constituting the ball passage on the pachinko ball entry side is required to secure wear resistance when the pachinko balls enter. There is a pachinko ball detector using a molding material with high wear resistance. In such a pachinko ball detector, if the pachinko ball detector is turned upside down, wear of the casing of the pachinko ball detector will increase.

If the pachinko balls do not easily pass through the ball path, the timing of detecting the pachinko balls becomes longer, and one pachinko ball may be detected twice and counted as two pachinko balls. Therefore, it is often used to make the ball passage into a polygonal shape, but furthermore, FIGS. 4 (a), (b), and (c)
The chamfer 23 is applied to the entrance edge of the ball passage 22 or the ball passage 22 is tapered, as in the pachinko ball detector 21 shown in FIG. In such a pachinko ball detector 21, when paying attention to the front and back sides when assembling into a pachinko machine, the pachinko ball becomes rather difficult to pass through the ball passage 22, and the erroneous counting of the number of balls may easily occur.

(Mounting Structure of Pachinko Ball Detector) In general, a pachinko ball detector is mounted on a pachinko machine with one touch. FIG. 5 shows a structure when the pachinko ball detector 31 is vertically inserted, and FIG. 6 shows a structure when the pachinko ball detector 31 is horizontally inserted.
A space 34 for accommodating the pachinko ball detector 31 is formed in a detector mounting portion 33 provided in a winning port member of the game board 32, a pachinko ball passage member, or the like. When the end of the pachinko ball detector 31 on the ball passage 35 side is inserted into the space 34, the end surface (reference surface) 36 on the ball passage 35 side of the pachinko ball detector 31 hits the inner wall surface of the space 34 as shown in FIG. The locking pawl 37 which is positioned and extended from the pachinko ball mounting portion 33 is engaged with the surface of the pachinko ball detector 31 opposite to the reference surface 36, and the pachinko ball detector 31 is fixed with one touch. In the case of horizontal insertion, as shown in FIG. 6, when the pachinko ball detector 31 is inserted from the side into the space 34 of the pachinko ball mounting portion 33, one side surface (reference surface) 38 of the pachinko ball detector 31 is changed. The pachinko ball detector 31 is positioned by hitting the inner wall surface of the space 34, and the side surface opposite to the reference surface of the pachinko ball detector 31 is pressed and fixed by the pressing member 39.

[0012]

As described above, the pachinko ball detector, whether of the contact type or the non-contact type, has a distinction between front and back from the internal structure. In addition, various measures are often taken to protect against static electricity, improve durability, and improve the reliability of detection accuracy.
For this reason, the distinction between front and back may be decided.

However, the conventional pachinko ball detector has no distinction between the front and back sides in terms of shape, and the detector mounting portion for mounting the pachinko ball detector does not have a structure that takes into account the front and back of the pachinko ball detector. In this way, the pachinko ball detector can be reversely mounted (the state in which the pachinko ball detector enters the ball passage in the reverse direction).

Therefore, when the pachinko ball detector is mounted on a pachinko machine, if the pachinko ball detector is turned upside down, the life of the pachinko ball detector is shortened, and the detection accuracy of the pachinko ball is deteriorated. .

More specifically, in the case of the above-mentioned contact type pachinko ball detector provided with a sensing lever, when the pachinko machine is shipped out, a pachinko ball passing test is performed at the time of a pachinko machine shipping inspection, and the sensing lever is moved. Sometimes it was destroyed.

Further, in the case of a non-contact type pachinko ball detector using an electronic switch, reverse mounting cannot be found at the time of shipping inspection, and a pachinko machine of defective mounting flows out to the market as it is, and the market (pachinko store) However, there is a problem that the pachinko machine breaks down due to static electricity or abrasion and the pachinko machine does not operate normally.

Therefore, in order to prevent such a reverse mounting of the pachinko ball detector, a marking 40 such as "IN" is provided on the pachinko ball entering side surface of the pachinko ball detector as shown in FIGS. The reverse mounting of the pachinko ball detector, such as distinguishing the pachinko ball entry side from the non-entry side by changing the color on the front and back of the casing (for example, changing the color of the resin between the case body and the cover that constitute the casing) The device has been devised to give attention.

However, such a visual appeal method alone does not eliminate the reverse mounting due to human error of the operator. In addition, after installing the pachinko ball detector into the pachinko machine, inspect the pachinko ball detector for reverse mounting. Even if you can visually detect the reverse mounting with markings or colors such as "IN", pachinko ball detection In the vicinity of the winning opening where the device is installed, the parts generally have a complicated structure in which each part is multiplexed, and it is very difficult to reassemble the pachinko ball detector after installing the pachinko ball detector once It takes a lot of time and effort, which significantly reduces the productivity of pachinko machines.

In a non-contact pachinko ball detector using an electronic switch, as described above, when the direction of pachinko ball inversion is reversed, the timing of detecting the pachinko ball and outputting an ON signal (ON position). ) Often changes. The pachinko machine uses a system that receives the winning ball detection signal from the pachinko ball detector installed at the winning opening and activates the game program, so that the pachinko ball detector can be installed in reverse. In such a case, there is a possibility that a fraudulent operation may be performed using a change in the timing at which an ON signal is output from the pachinko ball detector.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks of the prior art, and has as its object to provide a pachinko machine which cannot be mounted on a detector mounting portion with its front and back turned upside down. A ball detector is provided.

[0021]

A pachinko ball detector according to claim 1 is a pachinko ball detector which is used by being inserted into a detector mounting portion, and detects the pachinko ball in a state before it is turned upside down. It is characterized in that the shape of the part to be mounted on the detector mounting part does not match the shape of the part to be mounted on the detector in a state where it is turned upside down.

A pachinko ball detector according to a second aspect is a pachinko ball detector which is used by being inserted into a detector mounting portion, and is not rotationally symmetric with respect to a central axis by 180 degrees. .

[0023]

Since the pachinko ball detector of the present invention has a different external shape when turned upside down than before, the pachinko ball detector is assembled in the correct orientation with the pachinko ball detector. If the pachinko ball detector is made to match the shape of the pachinko ball detector at that time, the pachinko ball detector cannot be mounted even if it is to be mounted face down.

[0024]

BEST MODE FOR CARRYING OUT THE INVENTION

(First Embodiment) FIG. 7 is a front view of a pachinko gaming machine 41.
Shown in A game area is defined in the center of the game board 43 mounted on the front frame 42 by rails 44. At the center of the game area, a rail 44 defines a game area at the center. A variable display device 45 is mounted in the center of the game area, and a variable winning ball device 46 is disposed below the variable display device 45. Further, three starting winning openings 47, 4 are provided on both the left and right sides and immediately below the variable display device 45.
8 and 49 are provided, and tulips 50 and 51 are provided diagonally below the variable display device 45.

FIG. 8 is a perspective view showing the structure of the variable winning ball device 46, and FIG. 9 is an exploded perspective view thereof. When the pachinko game state has changed to the specific game state, for example, the variable display device 4
When the display state of “5” becomes “7, 7, 7” so-called “all 7”, the opening / closing plate 52 of the variable winning ball device 46 is rotated forward and opened as shown in FIG. The ball is in a first state in which the ball can be easily won, which is advantageous to the player. When the variable prize ball device 46 is in the first state, when the number of pachinko balls prize in the prize opening 53 becomes ten, or when the time from the first state reaches 30 seconds, As shown in FIG. 7, the opening / closing plate 52 pivots rearward, and is flush with the surface of the mounting board 54, so that the winning opening 5 is formed.
3 is closed, and a second state unfavorable for the player is set, in which the pachinko ball cannot enter the winning opening 53.

If there is one or more pachinko balls that have won a prize area, for example, a central area, of the pachinko balls that have won the prize opening 53 while the opening / closing plate 52 is being opened, the opening / closing plate 52 is reopened. Open, the variable winning ball device 46 is in a first state, which is advantageous to the player, and, as described above,
That state continues until ten pachinko balls are won or 30 seconds elapse. Then, the repetition of the above operation due to the winning of the pachinko ball in the special prize area is controlled so as to measure up to ten pieces.

Since the variable winning ball device 46 is basically controlled to perform the above-described operation, three pachinko ball detectors 55 necessary for the control are provided. More specifically, on the back side of the mounting board 54, the winning opening 5
The pachinko ball detectors 55 are arranged side by side substantially along the lower edge of the third pachinko ball 3.

The pachinko ball detector 55 is mounted on a winning ball collection cover 56. Side plates 5 are provided on both sides of each detector insertion hole 57 of the winning ball collecting cover 56.
8a, 58b or partition walls 59a, 59b extend. In the three spaces (detector mounting portions) between the side plates 58a, 58b or the partition walls 59a, 59b, the central region is a special prize region, and the left and right sides are normal prize regions.

Next, the overall structure of the variable winning ball device 46 will be described in more detail with reference to FIG. The variable winning ball device 46 has a horizontally long mounting board 54. At the center upper portion of the mounting substrate 54, a horizontally long substantially rectangular winning opening 53 is formed. On the left and right sides of the winning opening 53,
Winning contact holes 61a and 61b are formed to guide the winning pachinko balls to the winning openings 60a and 60b. Display lamp insertion holes 62a and 62b are formed on both sides of the winning connection holes 61a and 61b on the mounting substrate 54, and the display lamps 63a and 62b are respectively formed from the back side of the mounting substrate 54.
63b is inserted.

On the front side of the mounting board 54, a winning contact hole 61 is formed.
Cover members 64a and 64b are attached corresponding to a and 61b and the indicator lamp insertion holes 62a and 62b.
Similarly, the cover members 64a, 64b correspond to the winning contact holes 61a, 61b and the indicator lamp insertion holes 62a, 62b.
4b is attached. Cover members 64a, 64b
Respectively, in combination with the mounting board 54, the winning opening 60
a and 60b, and at least portions corresponding to the display lamp insertion holes 62a and 62b are made of, for example, a red-transparent synthetic resin or the like.
The on / off state of the display lamps 63a and 63b can be visually recognized from the front. The cover member 64
The thicknesses (depths) of the a and 64b are set to be slightly larger than the diameters of the pachinko balls so that the pachinko balls can enter the winning ports 60a and 60b. The cover member 64a,
Front decoration plates 65a and 65b formed of a light transmissive material are attached to the front side of the 64b.

A digital display 67 is mounted together with a display mounting frame 66 on the lower side of the front center of the mounting board 54, that is, on the lower front side of the winning opening 53. The display mounting frame 66 is for distributing pachinko balls falling from above to the left and right and protecting the digital display 67.

On both sides of the lower side of the winning opening 53 on the front side of the mounting substrate 54, projections 68 for mounting the opening / closing plate 52 are provided.
The opening / closing plate 52 is rotatably attached to the projection 68 by a support shaft 69. Therefore, the opening / closing plate 52 can be freely opened and closed with respect to the winning opening 53.

The opening / closing plate 52 has a large number of parallel triangular ribs arranged in a lower portion on the back side thereof. These ribs serve to guide the pachinko balls in a predetermined direction and reinforce the opening / closing plate 52. Opening / closing plate 5
Stopper pieces 70 for preventing the opening / closing plate 52 from being excessively opened are provided at both left and right sides on the front side of the device 2. further,
An operation plate 71 is provided at the right end of the opening / closing plate 52, and an engagement pin 72 is provided on the operation plate 71. Engaging pin 72
Are engaged with a U-shaped engagement receiving portion 74 of the operating member 73. And the operating member 73 is a solenoid 75
Attached to. Therefore, when the solenoid 75 is in the electrically biased state, the operating member 73 is pulled upward, and the opening / closing plate 52 is opened. Conversely, when the solenoid 75 is in the electrically deenergized state, the operating member 73 is lowered by the return spring 76, so that the opening / closing plate 52 is closed.

On the back side of the mounting substrate 54, a winning ball collecting cover 56 is mounted. Winning ball set cover 56
Are mounted corresponding to the winning openings 53, and are disposed on the rear surface of the mounting substrate 54. Winning ball set cover 5
6, the side plates 58a, 58b and the partition wall 5 as described above.
9a and 59b define a normal prize area and a special prize area, and serve to guide a prize ball to each prize area.
Pachinko ball detectors 55 are inserted into the winning ball collection cover 56 from the rear side thereof, corresponding to the normal winning area and the special prize area. Each pachinko ball detector 55
Both have a ball passage 77, and a pachinko ball won from the winning opening 53 passes through the ball passage 77 of one of the pachinko ball detectors 55. The pachinko ball that has passed through the ball path 77 is bent backward by a current-changing projection 78 formed on the mounting board 54, and is guided to the back side of the game board 43.

Next, a structure for attaching the pachinko ball detector 55 to the winning ball collecting cover 56 will be described. The type of the pachinko ball detector 55 is not particularly limited, and may be, for example, a contact type using a microswitch, and has a built-in detection coil (the detection coil is arranged so as to surround the ball passage 77. May be disposed on the outer periphery of the ball passage 77 so as to be opposed to the ball passage 77), a proximity switch type, or an optical type incorporating a light emitting element and a light receiving element (for example, the actual 4
And a non-contact type such as the one disclosed in U.S. Patent No. 1732).

As shown in FIG. 10, in each pachinko ball detector 55, only one of the two corners is chamfered at a relatively large angle at the end on the ball passage 77 side, and the slant cut shape is obtained. Is formed. Therefore, the pachinko ball detector 55 has an asymmetric outer shape rotated by 180 degrees with respect to the central axis C. When the pachinko ball detector 55 is rotated around the central axis C and turned upside down, reverse insertion is prevented. The part 79 is located on the opposite side to the face-up case. Correspondingly, the side plates 58a of the winning ball collecting cover 56 and the distal ends of the partition walls 59a and 59b are provided with
A substantially triangular triangular projection 80 is provided that matches the reverse insertion prevention portion 79 of the pachinko ball detector 55.

Therefore, when each of the pachinko ball detectors 55 is vertically inserted into the detector insertion hole 57 of the winning ball collection cover 56 with the front and back sides oriented correctly, as shown in FIG.
Since the reverse insertion preventing portion 79 of the pachinko ball detector 55 and the triangular protrusion 80 of the winning ball collecting cover 56 match, the pachinko ball detector 55 can be inserted to a predetermined depth. However, if the pachinko ball detector 55 is to be inserted into the detector insertion hole 57 by mistake or intentionally turning the pachinko ball detector 55 upside down, the corner of the pachinko ball detector 55 (the reverse insertion preventing portion 79). (Opposite side) is hit to the triangular projection 80 of the winning ball collecting cover 56 and is not inserted to a predetermined depth, so that reverse mounting is impossible. Therefore, the pachinko ball detector 55 cannot be reversely mounted due to its structure, and the reverse mounting of the pachinko ball detector 55 can be reliably prevented.

(Second Embodiment) FIG. 12 is a cross-sectional view showing a state in which a pachinko ball detector 55 according to another embodiment of the present invention is vertically inserted into a detector mounting portion 81 provided on a winning ball collecting cover 56 or the like. FIG. 13 is a perspective view showing the shape of the pachinko ball detector 55. This pachinko ball detector 55
As in the first embodiment, only one corner on the ball passage 77 side is chamfered to form a reverse insertion preventing portion 79. Reference numeral 82 denotes a code of the pachinko ball detector 55.

On the other hand, the detector mounting portion 81 provided on the winning ball collecting cover 56 or the like is not open at the back and has a back wall surface 81a. Therefore, when the pachinko ball detector 55 is inserted into the detector mounting portion 81, the pachinko ball detector 5
The distal end surface of the pachinko ball 5 comes into contact with the inner wall surface 81a of the detector mounting portion 81 so that the insertion depth of the pachinko ball detector 55 can be reliably positioned. The triangular projection 80 is provided at one corner at the back of the detector mounting portion 81.

A lock claw 8 provided at the tip of an elastic arm 83 extending from one side of the opening of the detector mounting portion 81 is provided.
The pachinko ball detector 55 is fixed by locking 4 to the rear end face of the pachinko ball detector 55.

Therefore, in this embodiment, the pachinko ball detector 55 is attached to the detector mounting portion 81 with the front and back facing in the correct direction.
When the pachinko ball detector 55 is inserted into the pachinko ball detector 55, the pachinko ball detector 55 is securely held. Not only can the pachinko ball detector 55 not be inserted to a predetermined depth but also the locking pawl 84 cannot be hooked on the rear end face of the pachinko ball detector 55, so that the reverse mounting can be prevented more reliably.

(Third Embodiment) FIG. 14 is a sectional view showing a state in which a pachinko ball detector 55 according to still another embodiment of the present invention is vertically inserted into a detector mounting portion 81, and FIG. 16 is a perspective view showing the structure of the detector 55, and FIG. In the pachinko ball detector 55, as shown in FIG. 15, at both corners on the ball passage 77 side, only the front half surface is obliquely recessed to provide a recessed reverse insertion prevention portion 85, A right-angled corner 86 is left on the back half surface. On the other hand, as shown in FIG. 16, at both corners at the back of the detector mounting portion 81, a triangular corner 87 protrudes on the surface side of the pachinko ball detector 55, and a lower corner 88 becomes a right-angled corner 88. ing.

Accordingly, when the pachinko ball detector 55 is inserted into the detector mounting portion 81 in the correct front-to-back direction, the triangular corner portion 87 of the detector mounting portion 81 is brought into contact with the pachinko ball detector 55.
14, and the corner 86 of the pachinko ball detector 55 and the corner 88 of the detector mounting portion 81 match, so that the pachinko ball detector 55 is attached to the detector mounting portion 81 as shown in FIG. The hook claw 84 is hooked on the rear end face of the pachinko ball detector 55. On the other hand, when the pachinko ball detector 55 is turned upside down and is to be reversely mounted, the corner 86 of the pachinko ball detector 55 hits the triangular corner 87 of the detector mounting portion 81. It cannot be inserted to the depth, and the hook claw 84 cannot be hooked.

(Fourth Embodiment) FIG. 17 is a cross-sectional view showing a state in which a pachinko ball detector 55 according to still another embodiment of the present invention is vertically inserted into a detector mounting portion 81, and FIG. It is a perspective view which shows the shape of the container 55. In the pachinko ball detector 55, as shown in FIG. 18, a reverse insertion preventing portion 89 having a concave shape is formed at a position off the center of the end surface on the ball passage 77 side. On the other hand, on the inner wall surface of the detector mounting portion 81, the pachinko ball detector 55
A projection 90 is protruded at a position facing the reverse insertion preventing portion 89.

Therefore, when the pachinko ball detector 55 is inserted into the detector mounting portion 81 in the correct front-to-back direction, the projection 90 of the detector mounting portion 81 is turned into the reverse insertion preventing portion 89 (concave hole) of the pachinko ball detector 55. 17), the pachinko ball detector 55 is inserted into the detector mounting portion 81 to a predetermined depth as shown in FIG. 17, and the hook claw 84 is hooked on the rear end face of the pachinko ball detector 55. On the other hand, if the pachinko ball detector 55 is turned upside down and mounted in reverse,
As shown in (5), since the projection 90 hits the end face of the pachinko ball detector 55, the pachinko ball detector 55 cannot be inserted to a predetermined depth, and the hook claw 84 cannot be hooked.

Although various structures for preventing reverse insertion of the pachinko ball detector 55 have been described, the present invention is not limited to these structures. May be different as long as they cannot be inserted into the detector mounting portion to a predetermined depth.

(Fifth Embodiment) FIG. 20 shows a structure of a portion for guiding pachinko balls from the tulips 50 and 51 provided on the game board 43 to the pachinko ball guiding gutter 93 on the back surface of the game board 43 through the opening 94. FIG. In addition, 91 is a glass plate and 92 is a nail. This pachinko ball guiding gutter 93
Has pachinko balls P that have won tulips 50 and 51
Is provided with a pachinko ball detector 55 for detecting. That is, the middle of the pachinko ball guiding gutter 93 is separated,
A detector mounting portion 81 as shown in FIG. 21 is provided in this portion, and the pachinko ball detector 55
Is inserted horizontally.

As shown in FIG. 22, the pachinko ball detector 55 is provided with a reverse insertion preventing portion 79 which is beveled only at one of the corners on the ball passage 77 side. The detector mounting portion 81 is horizontally long so that the pachinko ball detector 55 can be inserted horizontally, and a hole 97 for passing the cord of the pachinko ball detector 55 is opened on one side, and the opposite corner is provided. Is provided with a triangular projection 80.

Therefore, when the pachinko ball detector 55 is inserted into the detector mounting portion 81 with the front and back sides oriented correctly, the reverse insertion preventing portion 79 and the detector mounting portion 81 of the pachinko ball detector 55 are provided.
And the pachinko ball detector 55 fits in the detector mounting portion 81, but the pachinko ball detector 55
When the pachinko ball detector 55 is inserted into the detector mounting portion 81 by mistake (in a state where the pachinko ball detector 55 is rotated about the central axis C), the corner of the pachinko ball detector 55 hits the triangular projection 80 of the detector mounting portion 81. The pachinko ball detector 55 cannot be accommodated in the detector mounting portion 81.

Reference numeral 95 denotes a detector holder screwed to the detector mounting portion 81, and reference numeral 96 denotes a guide for guiding the pachinko ball P to the ball passage 77 of the pachinko ball detector 55.

The pachinko ball detector 55 may be vertically inserted into such a pachinko ball guiding gutter 93 as shown in FIGS. In the case of vertical insertion, the first
By using the structure as in the third embodiment, the reverse attachment of the pachinko ball detector 55 can be prevented. Here, when the pachinko ball guiding gutter 93 has a cylindrical shape, only the outside of the pachinko ball guiding gutter 93 is cut out as shown in FIG. If the inside and outside of the pachinko ball guiding gutter 93 are cut out as shown in FIG. 24, a guide can be eliminated.

[0052]

As described above, the pachinko ball detector of the present invention cannot be mounted on the detector mounting portion with its face turned upside down. Therefore, even in the case of a contact type pachinko ball detector, for example, the pachinko ball detector can be damaged. Can be prevented.

By mounting the pachinko ball detector face down, functions such as static electricity removal and abrasion resistance do not work, and the life of the pachinko ball detector is shortened.
It is possible to prevent the detection accuracy from being lowered and the reliability from being lowered.

In the case of a pachinko ball detector whose characteristics are changed when the front and back are reversed, it is possible to prevent the characteristics of the pachinko ball detector from being changed by mistakenly turning the pachinko ball detector to prevent the detection accuracy from being changed. can do.

Further, since it becomes impossible to mount the pachinko ball detector face down, it is possible to prevent fraud.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view showing the structure of a conventional contact-type pachinko ball detector.

FIG. 2 is a schematic sectional view showing the structure of a conventional non-contact type pachinko ball detector.

FIG. 3 is an exploded perspective view of the pachinko ball detector with the part omitted.

FIGS. 4 (a), (b), and (c) are a perspective view from the front side, a perspective view from the back side, and an enlarged view showing the shape of a ball passage of still another conventional pachinko ball detector.

FIG. 5 is a plan sectional view showing a conventional mounting structure of a pachinko ball detector.

FIG. 6 is a plan sectional view showing another mounting structure of a conventional pachinko ball detector.

FIG. 7 is a front view of the pachinko gaming machine according to the present invention.

FIG. 8 is a perspective view showing a structure of a variable winning ball device of the pachinko gaming machine.

FIG. 9 is an exploded perspective view of the variable winning ball device according to the third embodiment.

FIG. 10 is a plan view showing a winning ball collection cover and a pachinko ball detector of the variable winning ball device of the above.

FIG. 11 is a plan view showing a state in which the pachinko ball detector according to the first embodiment is attached to a winning ball collecting cover.

FIG. 12 is a plan sectional view showing a mounting structure of a pachinko ball detector according to another embodiment of the present invention.

FIG. 13 is a perspective view showing the same pachinko ball detector.

FIG. 14 is a plan sectional view showing a mounting structure of a pachinko ball detector according to still another embodiment of the present invention.

FIG. 15 is a perspective view showing the same pachinko ball detector.

FIG. 16 is an enlarged perspective view, partially broken away, showing the structure of the detector mounting portion of the above.

FIG. 17 is a plan sectional view showing a mounting structure of a pachinko ball detector according to still another embodiment of the present invention.

FIG. 18 is a perspective view showing the same pachinko ball detector.

FIG. 19 is a plan sectional view showing a state where the pachinko ball detector is mounted in the same manner as above.

FIG. 20 is a cross-sectional view showing a pachinko ball detector attached to a pachinko ball guiding gutter on the back surface of a tulip according to still another embodiment of the present invention.

FIG. 21 is a plan sectional view showing a mounting structure of the pachinko ball detector of the above.

FIG. 22 is a perspective view showing the same pachinko ball detector.

FIG. 23 is a sectional view showing a mounting structure of a pachinko ball detector according to still another embodiment of the present invention.

FIG. 24 is a cross-sectional view illustrating a mounting structure of a pachinko ball detector according to still another embodiment of the present invention.

[Explanation of symbols]

 46 Variable Winning Ball Device 50, 51 Tulip 55 Pachinko Ball Detector 56 Winning Ball Collecting Cover 57 Detector Insertion Hole 79 Reverse Insertion Prevention Section 80 Triangular Projection 81 Detector Mounting Section 85 Reverse Insertion Prevention Section 87 Triangular Corner 89 Reverse Insertion Prevention part 90 Projection 93 Pachinko ball guide gutter

Claims (2)

[Claims] 1. A pachinko ball detector which is used by being inserted into a detector mounting portion, wherein a shape of a portion to be mounted on the detector mounting portion in a state before the front and back is turned, and a state in which the front and rear are turned upside down. 3. The pachinko ball detector according to claim 1, wherein the shape of a portion to be attached to the detector does not match. 2. A pachinko ball detector used by being inserted into a detector mounting portion, wherein the pachinko ball detector is not 180-degree rotationally symmetric with respect to a central axis.