JP2008272254A - Solenoid actuation type variable winning device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a solenoid actuation type variable winning device capable of retaining an open state of a ball guiding piece without energizing it for a long time and capable of facilitating its control. <P>SOLUTION: The solenoid actuation type variable winning device advances or retreats a plunger by exciting a solenoid 22, and actuates the ball guiding piece 4b by the actuation of the plunger to vary a game ball into an easy-to-win state or a hard-to-win state, wherein the winning device includes a latch mechanism for mechanically retaining the plunger even after the demagnetization of the solenoid. The latch mechanism mechanically retains the plunger in the advance state or the retreat state against the elasticity of a spring member according to the rotation state of a rotor after the demagnetization of the solenoid. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention is such as a pachinko machine in which a ball guide piece provided at a winning opening is moved by operating a solenoid, and a pachinko ball flowing down on a game board is made easier to win or difficult to win at the winning opening. The present invention relates to a solenoid-driven variable winning device in a ball game machine.

In a ball game machine such as a pachinko machine, a pair of ball guide pieces are tilted in a parallel standing state or in an inverted 8-character shape by exciting and demagnetizing a solenoid, and a pachinko ball flowing down on the game board is awarded to the prize opening. A tulip-shaped solenoid-driven variable winning device configured to make it easy or difficult to win is disclosed in Patent Document 1 below.
In addition, a lid-shaped sphere guide piece is provided in a horizontally long big prize opening. When a so-called big hit occurs, the ball guidance piece is moved by energizing and demagnetizing the solenoid to open and close the big prize opening. A solenoid-driven variable winning device is disclosed in Patent Document 2 below.
JP 2004-267284 A JP 2001-46693 A

By the way, in general, this type of solenoid-driven variable prize-winning device is such that when the solenoid is energized for a long time (for example, several tens of seconds), the solenoid is overheated and the suction force is weakened. Thermal deformation or the like of the member may occur, causing failure or fire. However, in recent years, there has been a demand for keeping the winning opening open for a long time from the viewpoint of game play, and the countermeasure against the heat generation has become more problematic.
Therefore, the winning device shown in Patent Document 1 displaces the plunger from the first position to the second position when in the first energized state, while moving the plunger to the second position when in the second energized state. By using a keep solenoid (also called a self-holding solenoid) that is displaced from the first position to the first position, the plunger is held in the attracted state even when the power is turned off. I don't need it.

However, if a special solenoid such as the above keep solenoid is used, the manufacturing cost increases, and it cannot be operated by on / off control like a conventional ordinary solenoid, so the control system becomes complicated and the control circuit is There was a problem that it was forced to change.
Therefore, the present invention is intended to provide a solenoid-driven variable winning device that can hold a ball guide piece in an open state without being energized for a long time and that can be easily controlled.

The present invention is intended to solve the above-mentioned problem, and when the solenoid is excited, the plunger moves forward or backward, and the operation of the plunger moves the ball guiding piece so that it is easy to win a game ball or A solenoid-driven variable winning device that makes it difficult to win a prize, so that the plunger is mechanically held in the advanced state or the retracted state against the elasticity of the spring member even after the solenoid is demagnetized. The plunger is held by the latch mechanism and is released when the solenoid is re-excited, and the plunger is restored by the elasticity of the spring member.
In the solenoid-driven variable winning device according to the present invention, each time the latch mechanism excites the solenoid and moves the plunger forward or backward against the elasticity of the spring member, the starting cam body provided on the plunger is provided. Rotates the rotor in one direction by a predetermined angle, and mechanically holds the plunger in the advanced state or the retracted state against the elasticity of the spring member according to the rotational state of the rotor after the solenoid is demagnetized. It is characterized by being.
According to the present invention, in the solenoid-driven variable winning device, the latch mechanism includes an annular start cam body provided substantially fixed on the outer periphery of the plunger and an annular start cam body provided rotatably on the outer periphery of the plunger. A chrysanthemum flower comprising a rotor, a starting cam body, and a cylindrical portion that supports the rotor, and having a predetermined pitch angle and a crest and a valley connected in a zigzag manner on the surface of the starting cam body facing the rotor. The cylindrical portion is divided into an arc shape by forming slits at a pitch angle four times the pitch angle of the chrysanthemum uneven surface, and one end edge of each divided arc-shaped portion is formed. Sawtooth slopes are formed for two pitches, and an engagement piece that can be loosely fitted into the slit or abutted against the sawtooth slope is provided on the outer peripheral edge of the rotor, and the rotor is moved by the elasticity of a spring member. Pressing against the chrysanthemum-shaped uneven surface of the starting cam body Each time the solenoid is excited and the plunger moves forward or backward against the elasticity of the spring member, the chrysanthemum-shaped uneven surface presses the rotor to rotate the rotor and rotate the rotation. When the engaging piece of the child demagnetizes the solenoid, it is pressed against the sawtooth slope by the elasticity of the spring member, so that the rotor further rotates in the same direction along the sawtooth slope, thus exciting the solenoid. -Each time demagnetization is repeated, the engagement piece loosely fits into the slit or stays at one end edge of the arcuate portion every other time according to the rotation state of the rotor, so that the plunger resists the elasticity of the spring member. And is mechanically held in the advanced state or the retracted state.

  The winning opening can be kept open only by passing a current through the solenoid for a short time, and the winning opening can be returned to the closed state by flowing a current through the solenoid again for a short time. For this reason, it is not necessary to energize for a long time, and it is possible to prevent the solenoid from overheating due to the energization for a long time. In addition, since an ordinary solenoid that has been widely used in gaming machines can be used, the manufacturing cost is reduced and electrical control is facilitated.

  Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a tulip-shaped solenoid-driven variable winning device, FIG. 2 is a longitudinal sectional view of the state attached to the game board, FIG. 3 is an operational state diagram of FIG. 2, and FIG. It is a disassembled perspective view of an apparatus. In the figure, reference numeral 1 denotes a mounting board having a ball opening 2 in the center, 3 denotes a ball receiving member fixed on the front surface of the mounting board, and 4a and 4b denote front surfaces of the mounting board 1 in the ball receiving member. It is a pair of ball | bowl guide pieces pivotally supported by the provided support shafts 5a and 5b so as to be able to stand upright in parallel and tilt in an inverted 8-character form. On the back surface of the mounting substrate 1, there is provided a slowly-inclined ball guide rod 6 that guides pachinko balls flowing in from the entrance 2 to the rear. Engagement shafts 7 a and 7 b are integrally formed on the back surfaces of the ball guide pieces 4 a and 4 b, and the tips of the engagement shafts protrude from the back surface of the mounting substrate 1. In addition, 8 is a normal winning opening formed in the upper part of the mounting substrate 1, and 9 is a ball detection sensor provided in the lower part of the ball guide bar 6. Reference numeral 10 denotes a game board of a pachinko gaming machine to which the variable winning device is attached.

  Reference numeral 11 denotes a frame-shaped body that is fixed to the back side of the mounting substrate 1 by inserting screws into the mounting piece 13, and the upper part of the frame-shaped body is connected to the rear surface of the normal winning opening 8. 12 is integrally formed. Reference numeral 14 denotes a transmission member for transmitting the movement of a solenoid plunger, which will be described later, to the ball guide pieces 4a and 4b. The transmission member is integrally formed with a pair of side plate portions 17a and 17b at both ends of the transverse shafts 15 and 16. The support shafts 18a and 18b are projected from both outer surfaces of the side plate portion, and the support shaft is loosely fitted into a notch hole 19 formed in the rear edge portion of the frame-like body 12. 18a and 18b are rotatably supported, and one transverse shaft 15 is placed horizontally on the engagement shafts 7a and 7b. Note that projecting shafts 19a and 19b are integrally formed on the inner side surfaces of the side plate portions 17a and 17b to be engaged with a distal end portion of a plunger described later.

  Further, as shown in enlarged perspective views in FIGS. 5 and 6, reference numeral 20 denotes a machine frame body fixed to the rear side of the frame-like body 11 by screws 21, and a solenoid 22 is mounted on the machine frame body by screws 26. A latch mechanism 24, which will be described in detail below, is configured by the cylindrical portion 23 formed on the front edge portion of the machine frame body while being fixedly supported. Reference numeral 25 denotes a plunger formed in a shaft shape by a ferromagnetic metal material so that the solenoid 22 is excited by a magnetic force by exciting the solenoid 22, and the plunger has a flange 25a at a substantially intermediate portion. A pair of flanges 25c are formed at an appropriate interval so as to form an engaging groove 25b at the tip, and the projecting shafts 19a and 19b are engaged in the engaging groove 25c. A coil-shaped spring member 26 is provided on the outer periphery of the plunger 25 and urges the plunger 25 to protrude forward.

  Reference numeral 30 denotes an annular starting cam body, which is provided substantially fixedly on the outer periphery of the plunger 25 by being inserted into the outer periphery of the plunger 25 and contacting the flange 25a. Reference numeral 35 denotes an annular rotor, and the rotor is rotatably inserted into the outer periphery of the plunger 25 on the rear side of the starting cam body 30. As can be seen from the perspective view of FIG. 6, the front view of FIG. 7, the side view of FIG. 8, and the rear view of FIG. 9, the start cam body 30 has a constant pitch angle (30 degrees) on the surface facing the rotor 35. A chrysanthemum-shaped uneven surface 33 in which the crests 31 and the troughs 32 are arranged in a zigzag manner at a constant angle interval) is formed. Further, three protrusions 34 are integrally formed at an outer peripheral edge corresponding to the peak portion 31 of the activation cam body 30 at a pitch angle of 120 degrees. As can be seen from the perspective view of FIG. 5, the front view of FIG. 10, the side view of FIG. 11, and the rear view of FIG. Three engaging pieces 36 are projected, and the engaging pieces 36 also project in the front direction of the rotor 35 facing the starting cam body 30, and the projecting surface 36a is inclined so as to incline in one rotation direction. Forming.

  The cylindrical portion 23 supports the starting cam body 30 and the rotor 35 so as to be movable forward and backward in the axial direction. As can be seen from the perspective views of FIGS. 5 and 6 and the rear view of FIG. By forming the slit 37 at a pitch angle four times the pitch angle of the chrysanthemum-shaped uneven surface 33 (that is, a constant angle interval of 120 degrees), the slits 37 are divided into arc shapes, and the arc-shaped portions 23a to 23c thus divided are divided. On one end edge (in this case, the rear end edge), a sawtooth-shaped inclined surface 38 corresponding to two pitches is formed, which includes a first inclined surface 38a and a second inclined surface 38b, and a peak portion 39a and a valley bottom portion 39b are formed. The engaging piece 36 can be loosely fitted into the slit 37 or abuts against the serrated slope 38, and the rotor 35 is pressed forward by the elasticity of the spring member 26, thereby pushing the rotor into the starting cam body. It is brought into pressure contact with 30 chrysanthemum flower-like uneven surfaces 33.

  For this reason, as shown in FIG. 2, when the solenoid 22 is demagnetized and the pair of ball guiding pieces 4a and 4b are in the parallel standing state, the solenoid 22 is excited to cause the plunger 25 to elastically move the spring member 26. As shown in FIG. 3, the transverse shaft 15 is lifted and the engaging shafts 7a and 7b are freed. The pair of ball guiding pieces 4a and 4b are moved outward in a reverse octave shape by their own weight, and the game ball is changed from a state where it is difficult to win to a state where it is easy to win. At this time, that is, when the solenoid 25 is excited and the plunger 25 moves backward against the elasticity of the spring member 26, the starting cam body 30 presses the rotor 35, so that rotational torque is applied to the rotor 35. When the engaging piece 36 of the rotor 35 comes out of the slit 37, the rotor 35 is slightly rotated in the direction of the arrow shown in FIG. When the solenoid 22 is demagnetized, the engagement piece 36 is pressed against the first inclined surface 38 a by the elasticity of the spring member 26, so that the engagement piece 36 slides on the first inclined surface 38 a and moves the rotor 35. Further, it is finely rotated in the same direction, and the engaging piece 36 is stopped at the valley bottom 39b as shown in FIG. For this reason, even if the solenoid 22 is demagnetized, the return movement of the plunger 25 by the spring member 26 is prevented, and the ball guiding pieces 4a and 4b are held in the open state shown in FIG. The protrusion 34 of the starting cam body 30 is always in the slit 37 when the solenoid 22 is energized and demagnetized, so that it moves forward and backward integrally with the plunger 25 without rotating.

  Next, when the solenoid 22 is excited again and the plunger 25 is moved backward, the starting cam body 30 presses the rotor 35 again, and the engagement piece 36 of the rotor 35 moves from the valley bottom 39b to the peak 39a. And a rotational torque in the same direction is generated in the rotor 35. For this reason, the rotor 35 further finely rotates in the same direction. When the solenoid 22 is demagnetized, the engagement piece 36 is pressed against the second inclined surface 38b due to the elasticity of the spring member 26, so that the engagement piece 36 slides on the second inclined surface 38b and causes the rotor 35 to move. Further, the engagement piece 36 is loosely fitted in the next slit 37 by finely rotating in the same direction. For this reason, the plunger 25 returns to the state shown in FIG. 2 due to the elasticity of the spring member 26, and the pair of ball guiding pieces 4a and 4b are in a parallel upright state, so that the game ball can be easily changed from a winning state to a difficult winning state. To do.

  In this manner, the latch mechanism 24 excites the solenoid 22 to cause the chrysanthemum-shaped uneven surface 33 to press the rotor 35 each time the plunger 25 moves backward against the elasticity of the spring member 26, thereby pressing the rotor 35. , And the rotor engagement piece 36 is pressed against the sawtooth slope 38 by the elasticity of the spring member 26 when the solenoid 22 is demagnetized, so that the rotor follows the sawtooth slope. Each time the solenoid 22 is repeatedly excited and demagnetized, the engagement piece 36 is loosely fitted into the slit 37 every other time according to the rotation state of the rotor 22 or the arc-shaped portions 23a to 23c. Since the plunger 25 is mechanically held in the retracted state against the elasticity of the spring member 26 by staying at one edge, the ball guiding pieces 4a and 4b are opened even if the solenoid 22 is de-energized. Condition Can be held in, only energized briefly solenoid 22, or hold the spherical guide strip 4a, and 4b in an open state, it is possible to closed.

  In this embodiment, the plunger 25 is moved backward by exciting the solenoid 22, but the plunger is moved forward by exciting the solenoid, and the latch mechanism is in the advanced state of the plunger. It is good also as a structure which hold | maintains mechanically. That is, in the present invention, it may be a solenoid that moves the plunger forward by excitation or a solenoid that moves backward.

  In the above embodiment, the present invention is applied to a so-called tulip-type variable winning device. However, the present invention is not limited to the tulip-shaped variable winning device, and the large winning opening variable winning shown in FIGS. This variable prize-winning device can also be applied to a device, that is, a large rectangular entrance 2 is formed in the mounting substrate 1 and support shafts 5a and 5b are provided at both ends of the rectangular plate-like ball guide piece 4. The ball guide piece 4 is tiltably supported forward by supporting the support shafts 5a and 5b on both side edges of the entrance 2 and a transmission member is supported by a support shaft 18 on the back side of the mounting substrate 1. 14 is rotatably supported, the distal end portion 14a of the transmission member 14 is positioned on the protruding shaft 4a formed on the ball guide piece 4, and the base portion 14b of the transmission member 14 is placed on the distal end flange portion of the plunger 25. Engage the plunger 25 with the above actual A latch mechanism 24 similar to that shown in the embodiment is provided, and the plunger 25 is mechanically held in the retracted state by exciting and demagnetizing the solenoid 22 in the same manner as that shown in the above embodiment. The guide piece 4 is held in the open state, and then the solenoid 25 is excited and demagnetized to move the plunger 25 into the advanced state, and the ball guide piece 4 is closed.

  Further, the latch mechanism used in the present invention may be structured as shown in the perspective view of FIG. 18 and the side view of FIG. 19 in addition to the structure shown in the above embodiment. That is, in this embodiment, the latch mechanism 24 is fixed on the solenoid 22, and an engaging protrusion 50 that can be engaged with and disengaged from the latch mechanism 24 is formed on a part of the transmission member 14. As shown in FIGS. 20 and 21, the latch mechanism 24 has a rectangular case 51 having an open front surface and a sliding body 53 integrally formed with a pair of claw pieces 52 and 52 that can be opened and closed on the front end surface. A rotating piece 54 that is pivotally supported on the upper surface of the sliding body so as to be rotatable in a horizontal plane with a shaft 61 as a fulcrum, and a coil spring 55. The sliding body 53 is disposed in the case 51 so as to be movable forward and backward. At the same time, it is biased forward by the coil spring 55. Reference numeral 56 denotes a pin that protrudes from the upper surface of the sliding body 53 and loosely fits into the elongated hole 57 of the case 51 in order to limit the advance / retreat range of the sliding body 53. The rotating piece 54 has a rectangular plate shape, and both end portions thereof are notched in a V shape to form recesses 54a and 54b. Further, protrusions 58 and 59 that can come into contact with the recesses 54a and 54b when the sliding body 53 moves backward are formed on the rear wall surface of the case 51, and contact with the recesses 54a and 54b when the sliding body 53 moves forward. A protrusion 60 to be obtained is formed on the inner surface of the upper wall of the case 51. In addition, the same code | symbol as the said embodiment represents the same part.

  In this latch mechanism 24, the solenoid 22 is excited, the plunger 25 is moved backward against the elasticity of the spring member 26, and the transmission member 14 is pulled, so that the ball guide pieces 4a and 4b are pulled as shown in FIG. Open to the outside in the shape of a reverse octave by its own weight, and the game ball is changed from a state where it is difficult to win to a state where it is easy to win. At this time, the engaging protrusion 50 presses the sliding body 53, and the sliding body 53 is a coil spring. Since the gap between the claw pieces 52 and 52 is pushed into the case 51 against the elasticity of 55, the engagement protrusion 50 is held by the claw pieces 52 and 52, and the sliding body 53 is moved to the case 51. When pushed in, the rotating piece 54 hits the protrusion 58 and finely rotates in the direction indicated by the arrow in FIG. When the solenoid 22 is demagnetized in this state, the transmission member 14 is pushed by the elasticity of the spring member 26 and the engaging protrusion 50 tends to be separated from the sliding body 53. The sliding body 53 is as shown in FIG. Further, the protrusion 60 is engaged with the recess 54 a to prevent the forward movement, and the engagement protrusion 50 is held by the claw pieces 52 and 52. For this reason, even if the solenoid 22 is demagnetized, the ball guide pieces 4a and 4b are held open as shown in FIG.

  Next, when the plunger 25 is moved backward by exciting the solenoid 22 and the engaging protrusion 50 presses the sliding body 53, the rotating piece 54 comes into contact with the protrusion 59 and slightly rotates as shown in FIG. Since the engagement between the recess 54a and the projection 60 is released, when the solenoid 22 is demagnetized in this state, the sliding body 53 advances by the elasticity of the coil spring 55, and the claw pieces 52, 52 are moved as shown in FIG. Since the protrusion is opened and the gap between the two claw pieces is increased, the holding of the engaging protrusion 50 is released, the state shown in FIGS. 18 and 19 is restored, and the pair of ball guiding pieces 4a and 4b are in a parallel standing state, The game ball is changed from a state where it is easy to win to a state where it is difficult to win. For this reason, each time the sliding body 53 moves back and forth, the rotating piece 54 rotates in the direction of the arrow shown in the figure, and the engagement and the release thereof are repeated. In this embodiment, the solenoid 22 is simply energized for a short time. The ball guiding pieces 4a and 4b can be held in an open state or in a closed state.

  As described above, in the present invention, by providing the latch mechanism, the ball guide piece can be held in the open state even when the solenoid is de-energized. Regardless of the form, the ball guide piece can be held in the open state or closed. For this reason, the heat generation of the solenoid can be minimized, and there is no possibility that the suction force will be weakened due to overheating due to energization for a long time, or that there will be a thermal deformation or the like, resulting in failure or ignition. In addition, a normal solenoid can be used, and even if the solenoid is downsized, a sufficient amount of power can be produced by applying a large current for a short time, so that the manufacturing cost can be reduced. Furthermore, since it can be operated by a normal on / off control, it can be used easily without complicating the control circuit.

1 is a perspective view of a solenoid-driven variable winning device according to the present invention. 1 is a longitudinal sectional view of a solenoid-driven variable winning device according to the present invention. The operation state figure of FIG. 1 is an exploded perspective view of a solenoid-driven variable winning device according to the present invention. The disassembled perspective view of the principal part of the solenoid drive type variable prize apparatus which concerns on this invention. The disassembled perspective view of the principal part of the solenoid drive type variable prize apparatus which concerns on this invention. The front view of the starting cam body of the solenoid drive type variable prize apparatus which concerns on this invention. The side view of the starting cam body of the solenoid drive type variable prize apparatus which concerns on this invention. The rear view of the starting cam body of the solenoid drive type variable prize apparatus according to the present invention. The front view of the rotor of the solenoid drive type variable prize apparatus which concerns on this invention. The side view of the rotor of the solenoid drive type variable prize apparatus based on this invention. The rear view of the rotor of the solenoid drive type variable prize apparatus based on this invention. The rear view of the machine body of the solenoid drive type variable prize-winning apparatus which concerns on this invention. FIG. 3 is a cross-sectional view taken along line AA in FIG. 2. FIG. 4 is a cross-sectional view taken along line B-B in FIG. 3. The perspective view which showed other embodiment of the solenoid drive type variable prize apparatus based on this invention. The perspective view of the principal part which showed other embodiment of the solenoid drive type variable prize apparatus based on this invention. The perspective view of the principal part which showed other embodiment of the solenoid drive type variable prize apparatus based on this invention. The side view of the principal part which showed other embodiment of the solenoid drive type variable prize apparatus based on this invention. The horizontal sectional view which showed other embodiment of the latch mechanism of the solenoid drive type variable prize apparatus based on this invention. The longitudinal cross-sectional view which showed other embodiment of the latch mechanism of the solenoid drive type variable prize apparatus based on this invention. The operation | movement state figure of FIG. The operation | movement state figure of FIG. The operation | movement state figure of FIG. The operation | movement state figure of FIG. The operation | movement state figure of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Mounting board 2 Entrance hole 4,4a, 4b Ball guide piece 14 Transmission member 20 Machine frame body 22 Solenoid 23 Cylindrical part 24 Latch mechanism 25 Plunger 26 Spring member 30 Start cam body 33 Chrysanthemum uneven surface 34 Projection 35 Rotation Child 36 Engagement piece 37 Slit 23a-23c Arc-shaped part 38 Sawtooth-like slope 38a 1st slope 38b 2nd slope 39a Mountain top part 39b Valley bottom part

Claims (3)

  A solenoid-driven variable winning device that moves the plunger forward or backward by exciting the solenoid and moves the ball guide piece by the operation of the plunger to make it easy to win or difficult to win. A latch mechanism is provided to mechanically hold the plunger in the advanced state or the retracted state against the elasticity of the spring member even after the solenoid is demagnetized. The holding is released when the solenoid is re-excited, and the plunger is restored by the elasticity of the spring member.   In the latch mechanism according to claim 1, every time the plunger is moved forward or backward against the elasticity of the spring member by exciting the solenoid, the starting cam body provided on the plunger moves the rotor in one direction. The plunger is rotated by a predetermined angle, and the plunger is mechanically held in the advanced state or the retracted state against the elasticity of the spring member according to the rotational state of the rotor after the solenoid is demagnetized. Solenoid driven variable winning device.   The latch mechanism according to claim 1 includes an annular start cam body provided substantially fixed on the outer periphery of the plunger, an annular rotor provided rotatably on the outer periphery of the plunger, and the start cam. A cylindrical portion supporting the rotor and the rotor, and forming a chrysanthemum-shaped uneven surface in which the crests and troughs are arranged in a zigzag manner at a predetermined pitch angle on the surface of the starting cam body facing the rotor, The cylindrical part is divided into arcs by forming slits at a pitch angle four times the pitch angle of the chrysanthemum irregular surface, and two pitches of serrated slopes are provided at one end edge of each divided arc part. An engagement piece that can be loosely fitted into the slit or abutted against the sawtooth slope is provided on the outer peripheral edge of the rotor, and the rotor is made into chrysanthemum unevenness of the starting cam body by the elasticity of a spring member. The plunger is pressed against the surface to excite the solenoid. Each time the chrysanthemum-like irregular surface presses the rotor against the elasticity of the spring member, the rotor is rotated, and the rotating engagement piece of the rotor demagnetizes the solenoid. When the rotor is pressed against the sawtooth slope by the elasticity of the spring member, the rotor further rotates in the same direction along the sawtooth slope, and thus the rotation is repeated each time the excitation and demagnetization of the solenoid is repeated. The plunger is mechanically moved to the advanced state or the retracted state against the elasticity of the spring member by the engagement piece being loosely fitted into the slit or staying at one end edge of the arc-shaped portion every other time according to the rotation state of the child. A solenoid-driven variable prize winning device characterized by being held by the motor.

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