JPH0928875A - Prize winning device of pachinko machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a structure compact, and install it in a limited installing space by arranging a movable plate to open an opening-closing door by an adsorbing action caused by excitation of an electromagnet and a spring member to hold the opening-closing door in an opening position by rotatably energizing the movable plate according to demagnetization. SOLUTION: A spring member installed on an electromagnet 23 uniformly and rotatably energizes a movable plate 24 downward by spring pieces 25a and 25b positioned on upper surface both sides of the movable plate 24 without deviating the movable plate 24. Therefore, engaging pieces 28 and 28 of the movable plate 24 hold an opening-closing door 5 in an opening position by contacting and engaging with lower side engaging projections 11b and 11b arranged on opening angle regulating pieces 10 and 10. When the electromagnet 23 is excited when the opening-closing door 5 is opened, the movable plate 24 rotates upward against energization of the spring pieces 25b and 25b. Therefore, the respective engaging pieces 28 and 28 tilt and open the opening closing door 5 by contact and engaging with upper side engaging projections 11a and 11a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winning device for a pachinko machine, which is provided with an opening / closing door which is freely opened / closed in the front-rear direction by exciting and demagnetizing an electromagnet on the front surface of a ball entrance formed in a mounting plate.

[0002]

2. Description of the Related Art Conventionally, this kind of prize winning device has been used in so-called right-of-use type pachinko machines or seven machines.
A ball entrance is opened approximately in the center of the mounting plate to be mounted on the surface of the game board, an opening / closing door that can be opened and closed in the front-rear direction is provided on the front surface of the ball entrance, and a box frame is provided on the back side of the mounting plate inside the door. A specific winning opening and a general winning opening are provided, and an electromagnet is vertically arranged to open and close the opening / closing door. Therefore, the electromagnet includes, for example, a plunger a protruding downwardly as shown in FIG. 10, and an arm member horizontally extending toward the opening / closing door b side is provided at a lower end portion of the plunger a. c is attached to the arm member c
Has its front end engaged with the opening / closing door. When the electromagnet d is excited, the plunger a is retracted against the bias of the coil spring e, the arm member c is raised, and the opening / closing door b is opened to allow the pachinko ball to be received. Also, the electromagnet d
Is demagnetized, the plunger a projects by the bias of the coil spring e and the arm member c descends to open and close the door b.
Is closed to prevent acceptance of pachinko balls.

[0003]

However, since the electromagnet d requires at least the stroke H for moving the plunger a up and down, the length thereof becomes long, and the height dimension of the momentum winning device becomes high. . In addition, because the prize opening is provided in the box frame, the electromagnet d is arranged so as to be biased to one side of the box frame, and the tip of the arm member c attached to the plunger a is located on one side of the opening / closing door b. There is a winning device that is engaged with the end, but in this case it was horizontally long. As described above, the conventional prize winning device is inevitably large in size due to its structure, and it is difficult to mount it in a small installation space of the game board. Therefore, the present invention has been made to solve the above problems, and an object of the present invention is to provide a winning device for a pachinko machine, which has a very compact overall structure and can be installed in a limited installation space of a game board. To do.

[0004]

In order to achieve the object, the present invention provides an opening / closing door that can be opened and closed in the front-rear direction on the front surface of a ball entrance formed on a mounting plate, and a box on the back side of the mounting plate. In a winning device comprising a frame and a special winning opening located in the center and a general winning opening located on the side of the frame, an electromagnet is provided at the center of the box frame in correspondence with the specific winning opening. Deploy. Below the electromagnet, there is provided a movable plate which is pivotally supported at its rear end and whose front end is engaged with the opening / closing door. Furthermore,
A spring member formed of a thin steel plate and having a rear end fixed to the electromagnet is positioned on the upper surface of the movable plate.

Therefore, when the electromagnet is demagnetized, the movable plate is rotated downward by the bias of the spring member to close the opening / closing door. When the electromagnet is excited, the movable plate is rotated upward against the urging force of the spring member by the attracting action that accompanies it, and the open / close door is opened. During this time, the pachinko ball that entered the center of the ball entrance passes through the lower surface of the movable plate and wins the specific winning opening. In this way, place the electromagnet in the center of the box frame,
The front end of the movable plate disposed below the electromagnet is projected to the front side of the mounting plate along the side of the specific winning opening and is engaged with the opening / closing door to make the entire structure compact. You can

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a winning device according to the present invention will be described with reference to the drawings. In the present embodiment, a winning device used for a so-called right-type pachinko machine will be described, but other devices used for a seven machine or the like can also be similarly used. 1 is a perspective view of the winning device seen from the front, FIG. 2 is a perspective view thereof seen from the rear, and FIG. 3 is an exploded perspective view thereof. In the figure, the winning device 1 has a mounting plate 2 mounted on the surface of the game board. A horizontally long ball inlet 3 is formed in the central portion of the mounting plate 2. A box frame 4 is integrally formed on the back side of the mounting plate 2 so as to surround the ball entrance 3.

An opening / closing door 5 is provided on the front surface of the ball entrance 3 of the mounting plate 2 so as to be openable and closable. Shaft holes 6 and 6 are formed on both end surfaces of the lower part of the opening / closing door 5, and metal shaft pins 7 and 6 are formed in the shaft holes 6 and 6, respectively.
7 is inserted. Bearing holes 8, 8 are provided in the box frame 4 on the back side of the mounting plate 2 and on both sides of the lower portion of the ball inlet 3. Then, the shaft pins 7, 7 of the opening / closing door 5 are inserted into the bearing holes 8, 8 and the back frame member 1 described later as shown in FIG.
2, both side walls 4a, 4a of the box frame 4 protruding forward from both sides
The shaft pins 7, 7 are held so as not to move to the left and right by the tips of the presser frame portions 18, 18 attached to the outside, and thereby the opening / closing door 5 is rotatably supported to the front side. Further, on the lower side edge of the opening / closing door 5, there are formed substantially fan-shaped opening angle regulating pieces 10, 10 which are vertically projected rearward at positions where the opening / closing door 5 is divided into three equal parts, and a pachinko ball between them. The ball receiving plate portion 5a for temporarily holding is formed integrally with the opening / closing door 5.
Further, a pair of engaging protrusions 11a and 11b are provided on the outer sides of both the opening angle restricting pieces 10 and 10 at appropriate intervals.

The box frame 4 is formed in a hollow shape with an open rear surface, and a back frame member 12 on which a later-described electromagnet 23 is inserted is attached to the rear surface by a pair of screws 13, 13. The back frame member 12 is provided with an insertion opening 14 in the center of which an electromagnet 23 is inserted, and a pair of vertical partition portions 15 are located on the lower front surface of the back frame member 12 so as to face the pair of opening angle restricting pieces 10, 10. , 15 are projectingly provided, and a holding frame portion 16 for holding one end portion of the winning ball detector 21 is formed in the lower portion thereof. Further, on the back surface of the back frame member 12, projections 17, 17 for mounting the back cover are provided on both sides of the lower portion of the insertion opening 14. Reference numerals 18 and 18 denote presser frame portions integrally provided on both sides of the back frame member 12 and attached to both outer surfaces of the box frame 4.

The bottom surface of the box frame 4 has a pair of opening angle control pieces 10 and 10 and a partition section 15 provided on the back surface of the opening / closing door 5.
It is divided into three winning areas by 15, and the central winning area is the specific winning opening 19a, and the winning areas on the left and right sides are the general winning openings 19b and 19b. Further, when the opening / closing door 5 is closed at the specific winning opening 19a, the ball receiving plate portion 5a
A horizontal receiving plate 20a for receiving the pachinko ball that has been held in the back and guiding it to the rear is arranged, and the specific winning opening 1 is provided under the horizontal receiving plate 20a.
Winning ball detector 21 for detecting a pachinko ball winning in 9a
A holding concave portion 22 for holding the holding frame portion 16 with the holding frame portion 16 is formed. In addition, a horizontal receiving plate 20b, which receives the pachinko ball that has won the prize and guides it to the rear, at both of the general winning openings 19b, 19b,
20b is arranged. Reference numeral 4b is an inner wall suspended from the upper surface inside the box frame 4 along the width direction so as to bisect the front and rear to a substantially intermediate height position.

Therefore, as shown in FIG. 4, when the opening / closing door 5 is opened, the pachinko ball B1 which has entered the specific winning opening 19a is surrounded on three sides by the opening angle regulating pieces 10, 10 and the inner wall 4b. It is temporarily held on the upper surface of the portion 5a. When the open / close door 5 is closed as shown by the solid line in FIG. 5, the pachinko ball B1 is opened.
Is designed to drop on the upper surface of the receiving plate 20a.

Reference numeral 23 is an electromagnet interposed in the inlet 14 of the back frame member 12, and a movable plate 24 made of a magnetic material is provided below the electromagnet 23 so as to face it. Reference numeral 25 is a spring member for urging the movable plate 24. As shown in FIG. 7, the movable plate 24 has a groove-shaped engagement hole 26 at the rear end thereof fitted to engagement protrusions 27a, 27a projecting from the lower end of the case body 27 of the electromagnet 23, and at the same time By bending the colliding pieces 27a, 27a, they are rotatably supported in the vertical direction. Engaging pieces 28, 28 are integrally provided on both sides of the front end of the movable plate 24. Further, small projections 29, 29 are provided on both sides of the lower end of the rear surface of the case body 27 so as to face the upper surface of the movable plate 24 with a slight gap therebetween.

The spring member 25 is a vertical mounting plate portion 25.
a and a pair of left and right spring pieces 25b, 25b bent forward from the lower end of the mounting plate portion 25a are integrally formed of a thin steel plate. Then, as shown in FIG. 8, in the mounting plate portion 25a, small through holes 31, 31 fitted into the positioning projections 30, 30 projectingly provided on the rear surface of the case body 27 of the electromagnet 23.
Also, screw insertion holes 33, 33 that match the screw holes 32, 32 provided on the rear surface of the case body 27 are formed. Also,
The spring pieces 25b, 25b are formed in an elongated plate shape, and return elasticity is imparted by bending the base portions 25c, 25c of the spring pieces 25b, 25c into a U shape.

Reference numeral 34 denotes a back cover for fixing the electromagnet 23 to the back frame member 12, and left and right side plates 34a, 34a.
And a shelf 34c for receiving the lower surface of the rear plate 34b and the movable plate 24.
And the rear plate 34b has small through holes 35, 35 and screw holes 32, which are fitted to the projections 30, 30 on the rear surface of the case body 27.
Screw insertion holes 36, 36 that match 32 are provided. Further, cylindrical portions 37, 37 that are fitted to the mounting projections 17, 17 provided on the back surface of the back frame member 12 are provided below the left and right side plates 34a, 34a.

The spring member 25 is composed of spring pieces 25b, 25b.
Is made to face the gap between the lower end of the case body 27 of the electromagnet 23 and the movable plate 24 from the rear, and the small through holes 31, 31 of the mounting plate portion 25a are fitted to the projections 30, 30 to contact the rear surface of the case body 27. Contact. As a result, the screw insertion holes 33, 33 of the mounting plate portion 25a and the screw holes 32, 32 of the case body 27 are formed.
And a pair of left and right spring pieces 25b, 25b
Will be correctly positioned on both sides of the upper surface of the movable plate 24, avoiding the vicinity of the coil bobbin 23a at the center of the electromagnet 23.

In this state, the electromagnet 23 is inserted into the inlet 14 of the back frame member 12 so that the front surface of the electromagnet 23 is brought into contact with the back surface of the inner wall 4b in the box frame 4, and the back cover 34 is attached to the electromagnet 23. Fit on the rear surface and screw the screws 38, 38 into the screw insertion hole 3
6 and 36 are screwed into the screw holes 32 and 32 of the case body 27 to be fastened, and the cylindrical portions 37 and 37 of the back cover 34 are fitted to the projections 17 and 17 for mounting, and the back cover 34 is screwed.
It is fixed to the back frame member 12 at 9,39. As a result, the spring member 25 and the electromagnet 23 are firmly attached to the back frame member 12 integrally with the back cover 34. Then, the engaging pieces 28, 28 of the movable plate 24 are intervened between the two engaging projections 11a, 11b outside the opening angle regulating pieces 10, 10, respectively.

In this way, the spring member 25 attached to the electromagnet 23 is evenly directed downward by the spring pieces 25b, 25b located on both sides of the upper surface of the movable plate 24 without biasing the movable plate 24 (in FIG. 5). Rotate in the counterclockwise direction). Therefore, the engaging piece 2 of the movable plate 24
8, 28 are open angle regulating pieces 1 as shown by the solid lines in FIGS.
The opening and closing door 5 is held in the closed position by contacting and engaging with the lower engagement protrusions 11b and 11b provided on the Nos. 0 and 10. And
When the opening / closing door 5 is closed, when the electromagnet 23 is excited, the movable plate 24 resists the bias of the spring member 25 and rotates upward (clockwise) as shown by the chain line in FIGS. To do. As a result, the respective engagement pieces 28, 28 have the upper engagement protrusion 11
The opening and closing door 5 is tilted and opened by contacting and engaging with a and 11a. At this time, the upper surface of the movable plate 24 comes into contact with the small projections 29, 29 of the case body 27 to prevent rattling.

Further, when the opening / closing door 5 is opened, the pachinko ball B1 that has won the specific winning opening 19a is temporarily held on the upper surface of the ball receiving plate portion 5a as shown in FIG. And the door 5
When the pachinko ball B1 is closed, the pachinko ball B1 drops from the upper surface of the ball receiving plate portion 5a and passes through the space S between the engaging pieces 28, 28 to receive the receiving plate 20a.
The ball is received on the upper surface, is subsequently detected by the winning ball detector 21, and is discharged rearward. As described above, since the opening / closing door 5 is opened and closed by rotating the movable plate 24 with the rear end as a fulcrum, the rotation range H1 of the movable plate 24 can be reduced as shown in FIG. The position of the prize-winning prize ball detector 21 is raised, and at the same time, the length of the electromagnet 23 can be shortened, whereby the height dimension of the box frame 4 can be reduced. Also, the electromagnet 23
Is at a position corresponding to the specific winning opening 19a, that is, the box frame 4
Since it is placed in the center of the back surface, the width dimension can be shortened, and the overall structure of the winning device becomes very compact.

The movable plate 24 has two engaging pieces 28,
28 is provided, but this is to enhance the operational stability, and if there is no problem, one may be provided.

[0019]

As described above, in the winning device for a pachinko machine according to the present invention, the electromagnet is disposed at the center of the box frame in a position corresponding to the specific winning port, and the attracting action is accompanied by the excitation of the electromagnet. The opening and closing operation of the opening and closing door is directly performed by the operating plate that moves up and down, and the pachinko ball that has entered the specific winning opening passes through the inside of the engaging piece at the tip of the operating plate and is discharged rearward. Therefore, the whole structure can be made compact compared to the conventional prize winning device that uses the stroke of the solenoid plunger, and the place where the game board is installed is not limited. Can be converted. Further, since the structure is compact, there is an effect that handling is easy in mounting work on the game board.

[Brief description of drawings]

FIG. 1 is a perspective view of a winning device according to the present invention seen from the front.

FIG. 2 is a perspective view seen from the same.

FIG. 3 is an exploded perspective view of the same.

FIG. 4 is a sectional plan view of the same.

FIG. 5 is a sectional view taken along line XX of FIG. 4;

FIG. 6 is a sectional view taken along line YY of FIG. 4;

FIG. 7 is a perspective view showing how the movable plate is attached to the electromagnet.

FIG. 8 is a perspective view showing how the spring member is attached to the electromagnet.

FIG. 9 is a schematic view for explaining the action of the opening / closing door and the electromagnet.

FIG. 10 is a schematic view for explaining the action of a conventional open / close door and an electromagnet.

[Explanation of symbols]

 1 prize winning device 2 mounting plate 3 ball entrance 5 opening / closing door 19a specific winning hole 19b, 19b general winning hole 23 electromagnet 24 movable plate 25 spring member

Claims (1)

[Claims] 1. An opening / closing door that can be opened and closed in the front-rear direction is provided on the front surface of a ball entrance formed on a mounting plate, and a box frame is provided on the back side of the mounting plate, and a specific winning opening located in the center and its side. In a prize winning device provided with a general prize hole located on one side, an electromagnet is arranged at a position corresponding to the specific prize hole in the center of the box frame, and the electromagnet is provided below it and the front end is opened and closed. A movable plate that engages with the door and rotates upward by an adsorption action associated with the excitation of the electromagnet to open the opening / closing door, and a movable plate that is located on the upper surface of the movable plate and rotates downward when the electromagnet is demagnetized. A winning device for a pachinko machine, which is provided with a spring member that urges the opening / closing door to hold it at a closed position.