JPH0628146Y2 - Pachinko gaming machine winning device - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention relates to a pachinko gaming machine, and in particular, whether the pachinko ball is accepted or not easily accepted in its prize hole. The present invention relates to a winning device for a pachinko gaming machine, in which a movable piece to be created is connected to its drive mechanism.

(Prior Art) Generally, in a winning device of a pachinko gaming machine, a movable piece that makes it easy or difficult for a pachinko ball to enter the winning opening is rotatably attached near the winning opening. An example of this type is the drive mechanism of the variable winning device disclosed in Japanese Utility Model Laid-Open No. 60-160881. As shown in FIGS. 10 and 11, this drive mechanism has a movable piece 3 integrally attached to the front end of the rotating shaft 2 on the surface of the substrate 1, and the rotating shaft 2 extends rearward from the back surface of the substrate 1. ing. On the outer peripheral surface of the end portion of the rotary shaft 2,
A flat so-called D-cut portion 5 is formed so as to be attached to the link member 4 described below so as not to loosen. The D-cut portion 5 is fitted into the fitting hole 6 of the link member 4, and the locking washer 7 is attached to the penetrating side thereof, so that the rotary shaft 2 is prevented from coming off from the link member 4. An eccentric link shaft 8 is provided so as to project slightly away from the position where the rotary shaft 2 is fitted, and enters the elongated hole 10 as a receiving groove of the slider 9 at a position orthogonal to the axis of the link shaft 8. There is. One end of a plunger 11 is attached to the slider 9 in the vertical direction via a screw (or a pin), and the slider 9 and the plunger 11 are provided with a hole into which the screw can be screwed (or a pin can be inserted).
Also, the other end of the plunger 11 enters the electromagnetic coil 12,
By interrupting the current flowing through the electromagnetic coil 12,
The plunger 11 is moved up and down. As a result, the rotational force is transmitted to the rotary shaft 2 via the link member 4, and the movable piece 3 is rotated.

(Problems to be solved by the invention) However, in the conventional winning device for a pachinko gaming machine having the above-described configuration, the driving mechanism for opening and closing the movable piece 3 fixes the plunger 11 and the slider 9 with screws, and the side of the slider 9. There is no directional freedom or play. For this reason, when the solenoid is excited or demagnetized, the movable piece 3 operates by the engagement of the elongated hole (see FIG. 11) 10 of the slider 9 and the link shaft 8, so that the slider 9 is moved in the rotation direction of the link 4. Force of. Because of this, the slider 9 and the link 4 cannot be held in a smooth state, so that the plunger 11 will be worn if the slider 9 and the link 4 are used for a long period of time, which may cause a malfunction in the winning device of the pachinko gaming machine. Become.

In general, the electromagnetic coil (straight solenoid) has a structure in which the plunger is simply inserted into the electromagnetic coil by setting the diameter of the plunger to a small diameter with respect to the inner diameter of the electromagnetic coil and providing so-called "play". There is. As a result, means for restricting the rotational movement of the plunger with respect to the electromagnetic coil is omitted from the configuration, and the configuration is simplified.

Therefore, the plunger is not only moved straight on the basis of the attraction caused by the excitation and demagnetization of the electromagnetic coil, but also the movement caused by "play", that is, the movement in the radial direction of the plunger (hereinafter, "play"), Each movable piece is operated by a motion that includes a rotation operation about the rotation axis, that is, "twisting". In addition, since the movable piece is composed of a pair, there is a time difference between the pair of operations and the opening and closing. Regarding the correction related to the difference in the amount, it is necessary to consider not only the vertical movement of the plunger but also the "play" and the "twist".
This makes it difficult to simplify the configuration.

Therefore, an object of the present invention is to provide a winning device for a pachinko gaming machine, which can correct a malfunction of the plunger 11 within a predetermined range with a simple configuration.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a pair of rotating shafts 2, 2 extending from the front surface to the back surface of the winning device body 13 on both sides of the winning device body 13. A pair of electromagnetic coils 12 having rotatably inserted plungers 11 with their heads facing downwards are arranged on the back surface of the above, and movable pieces 3 and 3 are fixed to the front end portions of the rotary shafts 2 and 2, respectively. With each rotating shaft 2, 2
A pair of link members 4 and 4, each provided with a pair of link shafts 8 and 8 at their rear ends, are eccentrically connected from the link shafts 8 and 8, respectively, and the longitudinal direction of the link members 8 and The sliders 9 and 9 are attached to the heads of the plungers 11 and 11, respectively, and the middle portions of the pair of sliders 9 and 9 each having the outer long hole 22 and the inner long hole 22 arranged in the horizontal orthogonal direction are bored at both ends. The link shafts 8, 8 are movably provided in the outer elongated holes 22, 22 of the connector 9 and connecting members 27 for connecting the sliders 9, 9 to each other along the longitudinal direction of the elongated holes 22. The long holes 22 and 22 are connected to each other via movable pivot pins 28 and 28.

(Operation) Since the present invention is configured as described above, the pair of link shafts 8 and 8 are movably provided in the pair of outer elongated holes 22 and 22, respectively, and the sliders 9 and 9 are each inner elongated hole 22. , 22 are connected along the longitudinal direction of each elongated hole 22 by a connecting member 27 via pivot pins 28, 28 that can move freely, so that each of the sliders 9, 9 excites a pair of electromagnetic coils 12. At the same time, it is simultaneously pulled up based on the suction of the plunger 11, and simultaneously returns to its original position due to demagnetization. Therefore, even if there is a time lag in the vertical movement of the pair of plungers 11,
Both the movable pieces 3 and 3 are simultaneously opened and closed via the pair of link members 4 and 4 and the winning device body 13, and even when "play" and "twist" occur between the pair of plungers 11 and 11, The "play" and the "twist" are generated by the pair of link shafts 8 and 8 having a pair of outer elongated holes 22 and
By moving the inside of 22 and the pair of pivot pins 28, 28 moving inside the pair of inner elongated holes 22, 22, the pin is absorbed within a predetermined range. It

Furthermore, when one plunger 11 is not sucked, the malfunction of one movable piece 3, 3 or the difference in the amount of opening / closing operation can be corrected to some extent by connecting the sliders 9, 9.
When there is a slight difference in the amount of movement and a difference in response time between the drive systems of the pair of movable pieces 3 and 3, such a difference is determined by the outer elongated holes 22 and 22 and the inner elongated holes 22 and 22 in addition to the above connection. It is absorbed within the range, and the opening / closing operations of both movable pieces 3 and 3 are equalized.

Embodiment An embodiment of the present invention will be described below with reference to the drawings. First, FIG. 1 is a part of a winning device 1 of a pachinko gaming machine showing an embodiment of the present invention, and is disposed in the winning device 1 shown in FIG. 10 described in the section of the prior art. It is something. Since the winning device 1 of the present invention has the same parts as those already described as the prior art based on FIG. 10 and FIG. 11, the detailed description will be given by attaching the same reference numerals to the parts. I will omit it. The pair of movable pieces 3 shown in FIG. 1 are projected to the front surface of the winning device main body 13, and from the front surface to the back side, a pair of rotating shafts 2 integrally attached to the movable piece 3 extend. . Here, attaching the rotary shaft 2 to the movable piece 3 will be described. The movable piece 3 is made of, for example, a plastic material,
It is molded by injection molding together with an insertion hole 14 formed in a substantially rectangular shape for attaching the rotary shaft 2.

On the other hand, the rotary shaft 2 is made of a material having sufficient strength, such as a metal material or a plastic material, and has a rectangular cross section as a flat portion 15 that is close to the opening cross-sectional dimension of the insertion hole 14 and can be inserted. It is dimensioned.
The rectangular cross-sectional dimension of the flat portion 15 is equal to the opening cross-sectional dimension of the insertion hole 14, or the rotary shaft 2 is inserted in the insertion hole depending on the plastic material of the movable piece 3 and the rotary shaft 2 being a metal material.
It can be inserted even if slightly larger than 14. The rotary shaft 2 formed in this manner is applied to the insertion hole 14 of the movable piece 3, and is inserted into the insertion hole 14 by pressing the rotary shaft 2, and is tightened by the screw 16 if necessary.

In the embodiment shown in FIG. 1, the flat portion 15 of the rotary shaft 2 is formed in a substantially rectangular cross section, but other than this, a square cross section, an equilateral triangle cross section, etc. are conceivable. In addition, the rotating shaft 2 is a movable piece 3.
After being inserted into the insertion hole 14 of the rotary shaft 2, a punch is used to form a recess 17 or a minute step 18 is formed in the flat portion 15 of the rotary shaft 2 so as not to come off. You can

The rotary shaft 2 inserted into the movable piece 3 as described above extends to the back surface of the winning device body 13 and is axially supported by the shaft support hole 19 of the winning device body 13 and is formed at the other end of the rotating shaft 2. The cut portion 5 is protruding. This portion penetrates into the fitting holes 6 of the pair of link members 4 so that the operation of the drive unit 20 described later can be received,
A locking washer 7 is fitted into the D-cut portion 5 that has passed therethrough so as not to come off. A locking pin 21 is provided on the upper portion of the fitting hole 6, and the open portion of the locking washer 7 contacts the locking pin 21 to prevent the locking washer 7 from rotating.

In the embodiment shown in FIG. 1, the other end of the rotary shaft 2 has a D cut portion 5
As shown in FIG. 6 showing the front surface of the link member 4, this is formed in the flat portion 15 having a rectangular cross section like the one end of the rotary shaft 2, and the fitting hole of the link member 4 is formed. By making 6 into a shape corresponding thereto, one end of the rotary shaft 2 is penetrated and the locking washer 7 is fitted into the protruding portion thereof, and the inverted triangular locking pin 21 is fitted on the fitting hole 6. The protrusion prevents the locking washer 7 from rotating more effectively.

On the link member 4 at a position eccentric from the fitting position of the rotary shaft 2, a link shaft 8 is projectingly provided at an extension position of the link member 4 and provided in a horizontal direction orthogonal to the axis of the link shaft 8. The sliders 9 and 9 are loosely fitted in the outer long holes 22 located outside the sliders 9. The slider 9 shown in FIG. 1 is symmetrical to the left and right with a vertical center line of a pair of drive units 20 described later as a boundary, and both adjacent ends thereof are integrally driven by the connecting member 27. It is a thing.

Further, in FIG. 1, although it is covered with the connecting member 27,
Inside the outer long holes 22, 22 of both sliders 9, 9, the inner long hole 2
2 and 22 are drilled (see the broken line in Fig. 7). One end of a plunger 11 is attached to each slider 9 in the direction perpendicular to the slider 9 via a pin. The plunger 11 has a diameter smaller than the inner diameter of the electromagnetic coil 12, so that the plunger 11 is not only moved straight on the basis of the attraction accompanying the excitation and demagnetization of the electromagnetic coil, but also due to the small diameter. Plunger "play"
In other words, each movable piece is operated by a motion including a rotation motion about the plunger as a rotation axis, in other words, a “twist”.
The tip of the plunger 11 is bifurcated, and the portion of the slider 9 in which the long hole 22 is provided is sandwiched between the two supports from above, and a pin is inserted into the long hole 22 to insert the pin into the plunger 11. And the slider 9 is fixed together by a pin. A collar 23 is formed in the middle of the plunger 11, and a spring 24 is attached to the collar 23,
The other end of is inserted into the electromagnetic coil 12. Therefore, due to the elastic force of the spring 24, the plunger 11 normally projects downward from the electromagnetic coil 12, and when a current flows through the electromagnetic coil 12, the plunger 11 is pulled up, thus forming the drive unit 20.

Here, the spring 24 is mounted between the collar 23 and the bracket 25 of the electromagnetic coil 12, but as shown in FIG. 1, one end thereof is locked to the hook portion 26 formed in the lower portion of the slider 9. Alternatively, the other end may be locked to a lower hook portion (not shown), and the holding force may pull the plunger 11. Further, the plunger 11 provided in the electromagnetic coil 12 and the slider 9, and the slider 9 and the link shaft 8 of the link member 4 are connected to each other by the long hole 22 formed in the slider 9.
Depending on the position of, the mode shown in FIGS. 7 to 9 can be considered. The long holes 22 formed in the slider 9 are arranged such that the longitudinal direction is horizontal and orthogonal to the axis of each pin.
The respective pins are movably provided in the respective long holes 22. In other words, the slider 9 has a lateral degree of freedom with respect to the plunger 11 corresponding to the above-mentioned "play".

In the structure shown in FIG. 7, the plungers 11 and the sliders 9 and 9 are connected to each other by the connecting member 27 at the intermediate portions thereof through the pivot pins 28 and 28 which are movable into the inside elongated holes 22 and 22, respectively. Are connected along the longitudinal direction. Further, the outer elongated hole 22 and the inner elongated hole 22 are arranged such that their longitudinal directions are horizontally orthogonal to the link shafts 8 and 8, and the link shafts 8 and 8 are movably engaged in the outer elongated hole 22.

As a result, each of the sliders 9 and 9 has a pair of electromagnetic coils 12
At the same time, when the magnet is excited, it is simultaneously pulled up based on the attraction of the plunger 11, and upon demagnetization, it returns to the original position at the same time. Therefore, even if there is a time lag in the vertical movement of the pair of plungers 11, both the movable pieces 3 and 3 are simultaneously opened and closed via the pair of link members 4 and 4 and the winning device body 13. Further, when the electromagnetic coil 12 is disconnected and the one plunger 11 is not attracted, the two slides 9 and 9 can correct the malfunction of one of the movable pieces 3 and the difference in the opening / closing motion amount to some extent.

Furthermore, due to the difference in product accuracy between the members in the initial stage and the wear of the members due to continuous use, a slight difference in the amount of movement and a difference in the response time are caused between the drive systems of the pair of movable pieces 3, 3. However, such a difference and the occurrence of the above-mentioned “play” and “twist” are caused by the above-mentioned pivot pin.
28, 28 are the inner long holes 22 and 22 and the outer long holes 22 and 22 are not connected to each other by moving them in the longitudinal direction by connecting them.
It is absorbed within a predetermined range by the 22, 22 and the outer long holes 22, 22.

As shown in FIG. 8, one slider 9 is used for each plunger.
Since the link shafts 8 are connected to the slider 11 via the elongated holes 22 and the link shafts 8 are fitted in the elongated holes 22 at both ends of the slider 9, the plunger 11 and the slider 9 are provided with a degree of freedom in the lateral direction. Is accurately transmitted to each link shaft 8.

In FIG. 9, each plunger 11 is connected to each long hole 22 of one slider 9, and connecting levers 29 are provided at both ends of the slider 9.
One end of which is rotatably supported, and the other end of which is a link member 4
Is rotatably supported by the link shaft 8 and rotates the rotary shaft 2. Therefore, in this case, the matching of the respective positions is effective.

With the above configuration, when the electromagnetic coil 12 is excited, the plunger 11 is pulled up against the elastic force of the spring 24, so that the slider 9 moves up. This rise raises the link shaft 8 through the long hole 22 of the slider 9, rotates the rotary shaft 2 counterclockwise about the shaft support hole 19,
In response to this rotation, the movable piece 3 rotates counterclockwise when viewed from the rear surface of the winning device body 13. At this time, the elongated hole 22 is provided with a pin for attaching one end of the plunger 11 and the slider 9 movably, so that the slider 9 is provided with a degree of freedom in the horizontal orthogonal direction, that is, along the longitudinal direction of the elongated hole 22.
As a result, the force in the rotational direction of the link does not act directly on the plunger 11.

In this embodiment, the pin is inserted into the slot 22 when the plunger 11 and the slider 9 are fixed together, but the lower side of the slot 22 of the slider 9 may be cut out. That is, when the plunger 11 is moved up and down when it is activated, the upper side of the elongated hole 22 of the slider 9 is sandwiched by the two supports of the plunger 11 and the slider 9 is pinned.
Can be raised so that no functional inconvenience occurs. Of course, the above-mentioned degree of freedom in the lateral direction is not impaired.

When the electromagnetic coil 12 is demagnetized, the elastic force of the spring 24 and its own weight cause the plunger 11 to descend and return to its original position. At this time, the rotary motion transmitted to the rotary shaft 2 can accurately rotate the movable piece 3. Since the flat portion 15 of the rotary shaft 2 has two parallel faces, the strength of mutual connection between the rotary shaft 2 and the movable piece 3 increases.

(Effects of the Invention) As described above, since the slider and the plunger are engaged with each other while having the degree of freedom in the horizontal direction, it is possible to prevent the force in the rotational direction of the crank mechanism from acting on the plunger. The engagement between the plunger and the crank mechanism can be maintained in a smooth state. As a result, the vertical movement of the plunger is smooth, and the product accuracy and product reliability are good, so the vertical movement of the plunger is accurately transmitted to the crank, and malfunction of the movable piece due to long-term use occurs. Is suppressed. Therefore, the product life can be extended and the operation of the product can be stabilized by suppressing the malfunction of the movable piece.

Also, by connecting the slider with the pivot pin and the connecting member, they are driven simultaneously by excitation / demagnetization of a pair of electromagnetic coils, and even if there is a time lag in the vertical movement of the pair of plungers, both movable pieces have a pair of links. Since both the member and the link shaft are opened and closed at the same time, the above-mentioned time lag is corrected, so that the opening and closing operations of the movable piece can be easily equalized.

Further, when one of the plungers is not sucked, the malfunction of the one movable piece or the difference in the opening / closing operation amount can be corrected to some extent by connecting the two sliders. Furthermore, due to the difference in product accuracy between the members in the initial stage and the wear of each member due to continuous use, a slight difference in the amount of movement and a difference in response time may occur between the drive systems of the pair of movable pieces. This difference is absorbed within a predetermined range by the outer long hole and the inner long hole in addition to the above-mentioned connection, and the opening / closing operation of both movable pieces is made uniform. Therefore, a stable opening / closing operation can be continuously obtained regardless of wear of both drive systems.

Also, by connecting the sliders through the inner and outer elongated holes by the pivot pin and the connecting member, "play" and "twist"
Since the operations can be easily equalized, a stable opening / closing operation can be continuously obtained regardless of wear of both drive systems, and the operation reliability of the movable piece is improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing a part of the winning device 1 of the present invention, FIG. 2 is a side view showing a flat portion of a rotary shaft, FIG. 3 is a side view showing an example different from FIG. 2, and FIG. 2 is a plan view showing the rotation axis of FIG. 2, FIG. 5 is a plan view showing the rotation axis of FIG. 3, FIG. 6 is a front view of another example of a portion indicated by an arrow AA in FIG. 1, 7 is a front view showing an example of each connection of a plunger, a slider and a link shaft, FIG. 8 is a front view showing an example different from FIG. 7, and FIG. 9 is a front view showing an example different from FIG. Fig. 10 is a perspective view showing a conventional example. Fig. 11 is a perspective view showing a part of the winning device of Fig. 10. 2 …… Rotary shaft 3 …… Movable piece 4 …… Link member 8 …… Link shaft 9 …… Slider 11 …… Plunger 13 …… Prize winning device main body 20 …… Driving unit 22 …… Long hole

Claims (1)

[Scope of utility model registration request] 1. A pair of rotating shafts extending from the front surface to the back surface of the winning device body are provided on both sides of the winning device body, and plungers with their heads facing downward are rotatably inserted into the back surface of the winning device body. A pair of electromagnetic coils are arranged, a movable piece is fixed to the front end of each rotating shaft, and a pair of link shafts are provided at the rear end of each rotating shaft. From the head of the plunger, with each of the intermediate parts of a pair of sliders having an outer long hole and an inner long hole, which are arranged eccentrically from each other and are arranged in a direction orthogonal to the link shaft in the direction perpendicular to the horizontal Attached to each of the sliders, and each of the link shafts is movably provided in each outer elongated hole of each slider, and a connecting member for connecting each slider to each other along the longitudinal direction of each elongated hole is provided in each inner elongated hole. Free-moving pivot Winning device of the pachinko gaming machine, characterized in that linked via a Topin.