JP5474390B2 - Pachinko machine - Google Patents

Description

  The present invention relates to a pachinko gaming machine including a winning device having a winning opening, and in particular, when an opening / closing member that opens and closes a winning opening closes from an open position to a closed position, the opening / closing member and the upper edge of the winning opening The present invention relates to a pachinko gaming machine that can prevent a game ball from being caught between the game balls as much as possible.

  Conventionally, in a pachinko gaming machine, in a big hit gaming state, for example, a grand prize opening of a big prize opening device is opened and closed up to a set number of times (for example, 15 rounds) based on predetermined prize conditions. Each opening of the big winning opening is maintained until a predetermined number (for example, 10) of game balls wins the big winning opening or until a predetermined time (for example, 30 seconds) elapses from the opening.

  A conventional big prize opening device includes an opening and closing member that opens and closes the big prize opening, and a driving means that drives the opening and closing member. The driving means closes the solenoid actuator that drives the opening and closing member in the opening direction and the opening and closing member in the closing direction. And a spring member for driving the The spring member is externally fitted to the output shaft of the solenoid actuator. When the solenoid actuator is energized and driven, the opening / closing member opens, and then when the energization to the solenoid actuator is stopped, the opening / closing member is closed by the biasing force of the spring member.

  In recent years, pachinko machines have a large center role equipped with an image display and a movable accessory having a large screen size in the game area, and an arrangement space for a big prize opening located below the center feature. Therefore, a large prize opening device (see FIG. 18), which is smaller in size than the conventional big prize opening device (see FIG. 17) and reduced in size, is also being put into practical use.

  On the other hand, Patent Document 1 discloses a special prize opening device provided with a detection sensor for detecting the movement of an opening / closing member. When the opening / closing member returns from the open position to the closed position, if a game ball is sandwiched between the opening / closing member and the upper edge of the special winning opening, the detection sensor detects the ball biting state.

JP 2001-46693 A

  In the conventional big prize opening device, the big prize opening is opened by the opening operation of the opening and closing member in each of a plurality of rounds, and the opening and closing member is switched to the closed position by winning a predetermined number of game balls, etc. The game balls that are won during the closing operation are game balls that exceed a prescribed number, and it is desirable to minimize the winning of game balls that exceed this prescribed number.

  Therefore, by increasing the elastic biasing force of the spring member, the speed of the closing operation of the opening / closing member can be increased, and the switching time to the closed position can be shortened. However, when the opening / closing member 101 is biased in the closing direction by the strong biasing force of the spring member, when the opening / closing member 101 returns from the open position to the closed position, as shown in FIG. There is a problem that the game ball P is easily caught between the upper end edge of the winning opening 102 and the ball is easily bitten.

  On the other hand, when the biasing force of the spring member is weakened, the speed of the closing operation of the opening / closing member is slowed, so that the game ball is less likely to be caught between the opening / closing member and the upper edge of the big prize opening, and the ball is less likely to be engaged. On the other hand, the switching time from the open position of the opening / closing member to the closed position cannot be shortened.

  As shown in FIG. 18, in the downsized big prize opening device 103, the vertical width of the big prize opening 105 is smaller than the vertical width of the conventional big prize opening 102. Since the inclination angle (β) that inclines forward of the winning opening 105 is larger than the conventional inclination angle (α) shown in FIG. 17, the game ball is easy to bite.

In the big prize opening device of Patent Document 1, the ball biting can be detected by the detection sensor, but the ball biting cannot be prevented.
The object of the present invention is to shorten the switching time of the opening / closing member from the open position to the closed position, and to prevent the game ball from being caught between the opening / closing member and the upper edge of the winning opening. It is to provide a pachinko machine equipped with a prize opening device.

The present invention has the following configuration. Note that the reference numerals show an example of the correspondence with the components shown in the drawings for the purpose of promoting the understanding of the present invention, and do not limit the technical scope of the present invention.
The pachinko gaming machine according to claim 1 is a pachinko gaming machine (1) comprising a gaming board (4) and a winning opening device (11, 14) having a winning opening (11b, 14). , 14) includes an opening / closing member (11c, 20) for opening / closing the winning opening (11b, 14), and a driving means (21, 40) for opening / closing the opening / closing member (11c, 20). 21, 40) includes a solenoid actuator (29, 43) that drives the opening / closing member (11c, 20) in the opening direction and a spring member (30, 44) that drives the opening / closing member (11c, 20) in the closing direction. And the spring members (30, 44) have first and second spring members (34, 34A, 47, 35, 35A, 48) for driving the opening / closing members (11c, 20) in the closing direction. first spring member (34, 34a, 47) and the second spring member (35, 35a, 48) Ri spring member der to generate a weak elastic biasing force than the closing member (11c, 20) is closed from the closed position The position close to the position is closed by the biasing force of at least the second spring member (34, 34A, 47, 35, 35A, 48). From the closed position is characterized by performing the closing operation by only the urging force of the first spring member (34,34a, 47).

When the solenoid actuator (29, 43) is driven, the opening / closing member (11c, 20) opens to open the winning opening (11b, 14), and then the drive of the solenoid actuator (29, 43) is stopped. Then, the opening / closing member (11c, 20) is closed by the elastic biasing force of the first and second spring members (34, 34A, 47, 35, 35A, 48), and the winning opening (11b, 14) is closed. The In closing member (11c, 20) a closed position near the position from the open position, the opening and closing member (11c, 20) is at least a second spring member (35, 35a, 48) biased by strong yet biasing force elasticity, From the position close to the closed position to the closed position , the first spring member (34, 34A, 47) can be biased by a weak elastic biasing force. In that case, without extending the time required for closing operation, weaken the elastic biasing force of the end of the closing operation, it can be prevented the occurrence of spherical chewing.

  The pachinko gaming machine according to claim 2 is the pachinko gaming machine according to claim 1, wherein the first and second spring members (34, 34A, 47, 35, 35A, 48) are output shafts (29a, 48) of the solenoid actuator (29, 43). 43a) is a compression coil spring externally fitted in series or in parallel.

According to the present invention, it may be open closure site material without extending the time required for closing operation to the closed position from the open position, weaken the elastic biasing force of the end of the closing operation, to reliably prevent the occurrence of spherical chewing .

1 is a schematic front view of a pachinko gaming machine according to an embodiment of the present invention. It is a front view of a game board. It is a front view of a big prize opening device. It is a perspective view of a drive means when an opening-and-closing member is a closed position. It is a perspective view of a drive means when an opening-and-closing member is an open position. It is sectional drawing of the principal part of a prize opening case. It is a left side sectional view of the big prize opening device when the opening and closing member is in the closed position. It is a left side sectional view of the big prize opening device when the opening and closing member is in the open position. It is an expanded sectional view when the 1st and 2nd spring members externally fitted in parallel with the output shaft are in an extended state. It is explanatory drawing explaining the spring force and deformation amount of a 1st, 2nd spring member. It is an expanded sectional view when the 1st and 2nd spring members externally fitted in series with the output shaft are in an extended state. It is a front view of the start winning opening apparatus when the opening-and-closing member which concerns on Example 2 is a closed position. It is a front view of the start winning opening apparatus when an opening-and-closing member is an open position. It is a perspective view of a drive means when an opening-and-closing member is a closed position. It is a perspective view of a drive means when an opening-and-closing member is a closed position. It is an expanded sectional view in which the 1st and 2nd spring member externally fitted in parallel with the output shaft shows an extension state. It is a side view of the conventional big prize opening device at the time of a ball biting state. It is a side view of a downsized prize winning opening device in a ball biting state.

  Hereinafter, the best mode for carrying out the present invention will be described based on examples.

Embodiment 1 of the present invention will be described below with reference to the drawings.
As shown in FIG. 1 and FIG. 2, in the pachinko gaming machine 1 classified as the first type pachinko machine, an opening / closing frame 2 is attached to an outer frame attached to an island structure of the pachinko hall so that the opening / closing frame can be freely opened and closed. An opening / closing door 3 is attached to 2 so as to be freely opened and closed. A game board 4 is mounted on the open / close frame 2, and a game area 5 is formed on the front side of the game board 4. A window 3a is formed on the open / close door 3, and a transparent plate 3b is attached to the window 3a, and the front side of the game area 5 is covered with the transparent plate 3b. The game area 5 can be seen from the outside through the transparent plate 3b.

  A plurality of decorative lamps (frame lamps) 3c are provided in the upper part of the open / close door 3, and an effect button 9 called a so-called chance button that can be operated by a player and a game ball for launching are provided below the window 3a. A storage tray 6 for storing P and winning balls and a firing handle 7 operated by the player are mounted. When the firing handle 7 is rotated, the game ball P introduced from the storage tray 6 to the firing position is launched. Here, when there are a plurality of game balls P in the storage tray 6, for example, the plurality of game balls P are continuously fired at intervals of about 0.6 seconds. The launched game ball P is guided by the guide rail 8 and thrown into the top of the game area 5.

  As shown in FIG. 2, the game board 4 forming the vertical board surface 4a includes a number of obstacle nails 10, a start winning opening device 11, a gate 12, a big winning opening device 13, a plurality of normal winning openings 15, and an image display. A device 16 and a center accessory 17 are mounted in the game area 5, and a game display board 18 is mounted outside the game area 5. A control device (not shown) is mounted on the back side of the game board 4.

  The game ball P thrown into the top of the game area 5 falls while changing the direction by hitting a number of obstacle nails 10 and windmills (not shown) in the game area 5, and the start winning ports 11 a and 11 b of the start winning port device 11. , The gate 12, the big prize opening 14 of the big prize opening device 13, and a plurality of ordinary prize holes 15 are won and discharged to the outside of the game area 5, or fall down to the lowest end and the game area from the out mouth 19 5 is discharged outside.

  As shown in FIG. 2, the start winning a prize opening device 11 is arranged below the center accessory 17 and includes an electric tulip type accessory having a pair of left and right opening and closing members called electric Chu. The start winning opening device 11 includes a gate-type upper start winning opening 11a, an openable lower start winning opening 11b, an opening / closing member 11c for opening and closing the lower start winning opening 11b, and a game ball P winning in the start winning openings 11a, 11b. And a driving means (not shown) for opening and closing the opening / closing member 11c. The opening / closing member 11c is configured such that a pair of symmetrically shaped blade members rotate about an axis orthogonal to the board surface 4a, making it impossible to win the game ball P to the lower start winning opening 11b at the closed position. The game ball P can be awarded to the lower start winning opening 11b at the open position. The opening / closing member 11c shown in FIG. 2 is in the closed position.

  The gate 12 is disposed on the left side of the center accessory 17 and is provided with a gate SW (not shown) for detecting the game ball P that has passed through the gate 12. When winning is made by a lottery triggered by the passing of the game ball P through the gate 12, the start winning opening device 11 is operated, and the opening / closing member 11c is normally opened and closed so as to open and close the start winning opening 11b under closing. Make it work.

  The game display board 18 is arranged forward in the lower right area of the game area 5 and is a special symbol display 18a composed of a 7-segment display, a normal symbol display 18b that can be displayed on the circle, and four special displays. A symbol holding lamp 18c and four normal symbol holding lamps 18d are provided, and these indicators 18a to 18d use light emitting diodes (LEDs) as light emission sources. On the special symbol display 18a, the result of the lottery performed when the game ball P is won at the start winning ports 11a and 11b is displayed after variation display, and the normal symbol display 18b displays the gate 12 on the game ball P. The result of the lottery performed with the passing of is displayed after the variable display.

  During the variation display of the special symbol display 18a, the number of winning balls won in the start winning openings 11a, 11b, and the number of the winning balls that have not been subjected to the variation of the special symbol is retained up to four. The special symbol hold lamp 18c displays the number of hold of the special symbol. Similarly, during the fluctuation display of the normal symbol display 18b, the number of the game balls P that have passed through the gate 12 and the number of the game balls P for which the normal symbol fluctuation has not been executed is held up to four. The normal symbol hold lamp 18d displays the number of hold of the normal symbol.

  The image display 16 includes a liquid crystal display (LCD) and is mounted in a frame-shaped center accessory 17. On the image display 16, for example, an effect design (decorative design) is displayed as shown in FIG. 2. This performance symbol is displayed for the purpose of production in order to evoke a player's sense of expectation for reach and jackpot. The player can recognize whether the special symbol stop mode of the special symbol display 18a is hit or not by seeing the stop mode of the effect symbol. In other words, the effect symbol is displayed in a variable manner in conjunction with the special symbol change display, and when the combination of the effect symbol stop symbols is displayed in a specific combination (for example, “777”), the game state is normal. The gaming state is shifted to a special profit state such as a jackpot state or a probability variation jackpot state.

Next, the special prize opening device 13 will be described in detail.
As shown in FIGS. 2 to 8, the big prize opening device 13 is disposed below the start prize opening device 11 and opens and closes around the horizontal axis parallel to the big winning opening 14 and the board surface 4 a. 20, a grand prize opening SW (not shown) for detecting the game ball P won in the grand prize opening 14, a driving means 21 that opens and closes the opening / closing member 20, and a prize opening case 22 that houses the driving means 21. Have.

  As shown in FIGS. 3 and 6 to 8, the winning opening case 22 is formed of a synthetic resin material in a rectangular box shape with an open front end. Since the arrangement space of the big prize opening 14 in the game area 5 is limited, the vertical width of the big prize opening 14 is formed smaller than the conventional big prize opening. A decorative plate member 23 is disposed at the front end of the prize winning case 22.

  As shown in FIG. 3, the decorative plate member 23 is formed substantially horizontally long in a front view and is fixed to the game board 4 by a plurality of fixing screws 33. An opening 23a that is opened in a horizontally-long rectangular shape when viewed from the front is formed in a penetrating shape near the upper center of the decorative plate member 23. As shown in FIGS. 4 and 5, a large winning opening 14 is formed at a position corresponding to the opening 23 a at the front end of the winning opening case 22.

  As shown in FIGS. 3 to 6, the opening / closing member 20 is disposed in the opening 23 a of the decorative plate member 23. The opening / closing member 20 is formed in a rectangular plate shape in front view so as to cover the opening 23a of the decorative plate member 23, and is lightweight, for example, with a synthetic resin material in order to reduce the moment of inertia and increase the responsiveness of the opening / closing operation. It is configured.

  A pivot shaft 24 extending in parallel with the game board 4 is provided at the lower ends of the left and right end portions of the opening / closing member 20, and the distal end portion of the pivot shaft 24 is rotatably mounted on the bearing portion of the decorative plate member 23. Thus, as shown in FIGS. 4 and 7, the opening / closing member 20 has a closed position in which the upper end portion is separated from the upper edge of the special winning opening 14 and inclined at a predetermined small angle, and FIGS. 5 and 8. The position is switchable over the open position shown. When the opening / closing member 20 is in the open position, the special winning opening 14 is in an open state, and when it is in the closed position, the special winning opening 14 is almost closed.

  As shown in FIGS. 4 to 9, the driving means 21 for opening and closing the opening / closing member 20 is provided in the vicinity of the inner side of the left side wall of the prize opening case 22, and the arm member 25 integrally formed with the opening / closing member 20, An engagement pin 25a formed integrally with the arm member 25 and parallel to the game board 4, a swing member 27 engaged with the engagement pin 25a, and a connection pin 28b connected to the swing member 27 The connecting member 28 fixed to the output shaft 29a of the solenoid actuator 29, the solenoid actuator 29 for driving the opening / closing member 20 in the opening direction via the connecting member 28 and the swinging member 27, and the opening / closing member 20 in the closing direction. And a spring member 30 to be driven.

In the center of the front portion of the connecting member 28, an elongated hole 28a that is elongated in the front-rear direction is formed. In this elongated hole 28a, a horizontal support that is supported by a support member 26 that is fixed in the prize-winner case 22 is provided. One end portion of the shaft 31 is inserted.
The other end of the support shaft 31 is inserted into a circular pivot hole 27a formed in the swing member 27, and supports the swing member 27 so as to be swingable. A notch 27 b is formed at the upper end of the rear part of the swing member 27, and a connection pin 28 b integrally formed with the connection member 28 is engaged with the notch 27 b, and the swing member 27 operates the connection member 28. It rotates around the support shaft 31 in conjunction with.

  An engaging recess 27 c formed by cutting out is formed at the front end of the swing member 27. An engagement pin 25 a that protrudes to the left is formed at the rear end of the lower end of the arm member 25. The left engagement pin 25a is engaged with the engagement recess 27c, the engagement recess 27c rotates, the engagement pin 25a moves up and down, and the opening / closing member 20 rotates integrally via the arm member 25. . The right engagement pin 25 a is engaged with an arc groove 22 a formed in the winning hole case 22.

  The solenoid actuator 29 is accommodated in a box-shaped metal case 39. The output shaft 29a of the solenoid actuator 29 protrudes forward through the through hole in the front surface of the case 39, and an engaging portion 28c integrally formed at the rear end portion of the connecting member 28 is fixed to the front end thereof. Yes. Between the front surface of the case 39 and the engaging portion 28c, the spring member 30 is concentrically fitted on the output shaft 29a.

  As shown in FIGS. 6 to 9, the spring member 30 includes first and second spring members 34 and 35 that drive the opening / closing member 20 in the closing direction in cooperation. The first and second spring members 34 and 35 are cylindrical compression coil springs that generate a biasing force that elastically biases the connecting member 28 forward.

  The first spring member 34 is a compression coil spring having a long free length, a large outer diameter, a large amount of elastic deformation, and a small spring constant compared to the second spring member 35. The second spring member 35 is a compression coil spring made of a spring wire thicker than the first spring member 34 and having a strong elastic biasing force that biases the opening / closing member 20 in the closing direction.

  As shown in FIG. 9, the first and second spring members 34 and 35 are externally fitted in parallel to the output shaft 29 a, and the first spring member 34 is externally fitted to the second spring member 35. One end of the first and second spring members 34 and 35 is brought into contact with the front surface of the case 39 of the solenoid actuator 29, and the other end is received by an annular spring receiving plate 36 fixed to the rear end portion of the connecting member 28. Yes. The front surface of the case 39 and the spring receiving plate 36 are provided with ring members 37a and 37b, respectively. The ring members 37a and 37b are first and second spring members 34, which are externally fitted in parallel to the output shaft 29a. In order to prevent mutual interference between the first spring member 34 and the second spring member 35, the first spring member 35 and the second spring member 35 are disposed.

  When the solenoid actuator 29 is energized and driven (excited state), the output shaft 29a retracts against the urging force of the first and second spring members 34 and 35, and the connecting member 28 moves backward by a predetermined stroke. . In conjunction with the movement of the connecting member 28, the swing member 27 swings counterclockwise around the support shaft 31 from the position of FIG. 7 to the position of FIG. 8, and the engagement pin 25a is moved by the engagement recess 27c. The arm member 25 and the opening / closing member 20 are integrally rotated clockwise about the pivot shaft 24 so that the opening / closing member 20 is in the open position.

  On the other hand, when the energization to the solenoid actuator 29 is stopped (demagnetized state), the urging force of the first and second spring members 34 and 35 causes the output shaft 29a to extend, and the connecting member 28 moves forward by a predetermined stroke. In association with the movement of the connecting member 28, the swing member 27 swings clockwise from the position of FIG. 8 to the position of FIG. 7 around the support shaft 31, and the engagement pin 25a is lowered by the engagement recess 27c. The arm member 25 and the opening / closing member 20 are integrally rotated counterclockwise about the pivot shaft 24, and the opening / closing member 20 is in the closed position.

The closing operation when the opening / closing member 20 returns from the open position to the closed position will be described with reference to FIGS. The opening / closing member 20 is energized by the strong total energizing force of the first and second spring members 34 and 35 from the open position to the 3/4 closed position where it is closed by 3/4, for example, and is fully closed from the 3/4 closed position. Up to the position, the first spring member 34 is biased by a weak biasing force.
For example, as shown in FIG. 10, the first spring member 34 has a larger amount of elastic deformation when fully opened than the second spring member 35, and biases the opening / closing member 20 in the range of ΔX3 to ΔX1. The second spring member 35 urges the opening / closing member 20 in a range where the amount of elastic deformation is ΔX2-0.

When the opening / closing member 20 is in the open position, the first and second spring members 34 and 35 are in a compressed state, and the first spring member 34 exerts an urging force of F2 with a larger amount of compressive deformation ΔX3 than the second spring member 35. The second spring member 35 generates a biasing force F3 stronger than the first spring member 34 with a smaller amount of compressive deformation ΔX2 than the first spring member 34.
When the opening / closing member 20 is closed from this compressed state, the opening / closing member 20 is initially biased by the biasing force F2 of the first spring member 34 and the strong biasing force F3 of the second spring member 35. The closing operation is performed at a fast return speed until the 3/4 closing position where the second spring member 35 is fully extended.

  Next, as shown in FIG. 9, when the second spring member 35 is fully extended, the opening / closing member 20 is urged by the urging force in the vicinity of the weak urging force F1 of the first spring member 34, so the opening / closing member 20 is slow. Closes from the 3/4 closed position to the closed position at the return speed.

The operational effects of the pachinko gaming machine 1 according to the first embodiment described above will be described.
When the player rotates the launch handle 7, the game ball P is continuously thrown into the top of the game area 5, and hits a number of obstacle nails 10 and windmills and falls while changing direction. When the game ball P wins the upper start winning port 11a of the start winning port device 11, when the special symbol display 18a changes and the stop symbol becomes a big hit symbol, the big winning port 14 is opened and the big hit gaming state Will occur.

  In this big hit gaming state, the big prize opening 14 is opened and closed by the opening / closing member 20 based on a predetermined winning condition, but when the opening / closing member 20 returns from the open position to the closed position, it closes. A ball-engaged state in which the game ball P is sandwiched between the upper end of the open / close member 20 and the upper edge of the special winning opening 14 may occur.

  The opening / closing member 20 has an elastic urging force of the first spring member 34 and an elastic urging force stronger than that of the first spring member 34 of the second spring member 35 until the closing position of the opening / closing member 20 (for example, 3/4 closed position). Therefore, it returns from the open position to the middle position in a short time at a fast return speed.

  After the second spring member 35 is fully extended, the opening / closing member 20 is biased by the weak elastic biasing force of the first spring member 34 from the midway position to the closed position. Since it becomes late and the force which pinches | interposes the game ball P between the upper end part of the opening-and-closing member 20 and the upper edge part of the big winning opening 14 becomes weak, it becomes difficult to generate | occur | produce a ball bite.

An example in which the first embodiment is partially changed will be described.
1] In the first embodiment, the first and second spring members 34 and 35 are externally fitted in parallel to the output shaft 29a of the solenoid actuator 29. However, as shown in FIG. 35A may be externally fitted in series to the output shaft 29a.

  In this case, the outer diameters of the first and second spring members 34A and 35A are the same, but the first spring member 34A has a longer free spring length and an elastic deformation amount than the second spring member 35a. A compression coil spring having a large spring constant and a small spring constant. On the other hand, the second spring member 35A is a compression coil spring made of a spring wire thicker than the first spring member 34A.

When the first and second spring members 34A and 35A are externally fitted in series to the output shaft 29a, a washer 38 is sandwiched between the first and second spring members 34A and 35A. When the opening / closing member 20 is in the open position, the urging forces of the first and second spring members 34A, 35A are equal.
When the opening / closing member 20 returns from the open position to the closed position, first, the first and second spring members 34A, 35A are commonly generated in series from the open position to the middle position (for example, 3/4 closed position). The first and second spring members 34A and 35A are then urged by a weak urging force generated in series in common. Therefore, the same operations and effects as those in the above embodiment can be obtained.

  2] In the first embodiment, the present invention is applied to the big prize opening device 13 having the big prize opening 14 whose vertical width is smaller than that of the conventional big prize opening device. The present invention is also applicable to a grand prize opening device having a mouth.

  3] In the first embodiment, the present invention is applied to the pachinko gaming machine 1 classified as the first type pachinko machine, but the big prize provided in the pachinko gaming machine classified as the second type pachinko machine called the wing mono. The present invention may be applied to a mouth device.

Next, a pachinko gaming machine according to a second embodiment will be described.
However, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted. The second embodiment shows an example when the present invention is applied to the start winning a prize opening device 11.

  As shown in FIG. 2 and FIG. 12 to FIG. 15, the start winning port apparatus 11 is arranged below the center accessory 17 and includes a gate type upper start winning port 11 a and an openable lower start winning port 11 b. A pair of opening and closing members 11c for opening and closing the lower start winning opening, a start opening SW (not shown) for detecting the game ball P winning the start winning openings 11a and 11b, and a driving means 40 for driving the opening and closing member 11c. And have.

  As shown in FIGS. 12 to 15, the opening / closing member 11 c is a pair of short blade members 41 a and 41 b having a predetermined width in a direction orthogonal to the board surface 4 a, and is light in weight to reduce the moment of inertia. In order to improve the responsiveness of the opening / closing operation, the weight is made of, for example, a synthetic resin material.

  Each of the pair of blade members 41a and 41b has pivot shafts 51a and 51b orthogonal to the board surface 4a at the lower ends thereof, and these pivot shafts 51a and 51b can be freely rotated by the swing member 42 of the driving means 40. The pair of blade members 41a and 41b is placed between the closed position of the standing posture shown in FIGS. 12 and 14 and the open position of the inverted C-shaped tilting posture shown in FIGS. The position can be switched freely. When the blade members 41a and 41b are in the open position, the lower start winning port 11b is in an open state, and when in the closed position, the lower start winning port 11b is in a closed state.

  The driving means 40 includes a swing member 42, a solenoid actuator 43 that drives the opening / closing member 11c in the opening direction via the swing member 42, and a spring member that drives the opening / closing member 11c in the closing direction via the swing member 42. 44.

  The swing member 42 includes a pair of left and right swing pieces 42a and 42b that are arranged in parallel at a predetermined interval, a connecting shaft 42c that connects these swing pieces 42a and 42b, and a rear side of the connecting shaft 42. And an engaging pin 42d. These are integrally formed of a synthetic resin material. The pair of swing pieces 42a and 42b have pivot shafts 45a and 45b extending in parallel with the game board 4 at the lower ends of the rear ends thereof, respectively. 11 is rotatably attached to a frame member that covers 11. Cutout engagement grooves 53a and 53b are formed at the tip ends of the pair of swing piece portions 42a and 42b, respectively, and the pivots of the pair of blade members 41a and 41b are formed in the engagement grooves 53a and 53b. The support shafts 51a and 51b are loosely fitted respectively.

  The solenoid actuator 43 is accommodated in a box-shaped metal case 50. A circular engagement plate 46 is fixed to the front end portion of the output shaft 43 a of the solenoid actuator 43. An annular spring receiving plate 49 is externally fitted to the output shaft 43a at a predetermined interval behind the engaging plate 46. An engaging pin 42 d of the swing member 42 is engaged with a recess formed between the engaging plate 46 and the spring receiving plate 49.

  The spring member 44 has first and second spring members 47 and 48 that drive the pair of blade members 41a and 41b in the closing direction in cooperation. The first spring member 47 is a compression coil spring having a long free length, a large outer diameter, a large amount of elastic deformation, and a small spring constant compared to the second spring member 48. The second spring member 48 is a compression coil spring that is made of a spring wire thicker than the first spring member 47 and generates a strong elastic biasing force that biases the opening / closing member 11c in the closing direction.

  As shown in FIG. 16, the first and second spring members 47, 48 are loosely fitted in parallel to the output shaft 43 a so that the first spring member 47 covers the outer periphery of the second spring member 48. 47 is loosely fitted to the second spring member 48. One end of the first and second spring members 47 and 48 is received by the spring receiving plate 49, and the other end is in contact with the front surface of the case 50 of the solenoid actuator 43.

  The front surface of the case 50 and the spring receiving plate 49 are provided with ring members 52a and 52b, respectively, and the ring members 52a and 52b are first and second spring members 47, which are externally fitted in parallel to the output shaft 43a. In order to prevent mutual interference of 48, the first spring member 47 and the second spring member 48 are disposed so as to be located.

  When the solenoid actuator 43 is energized and driven (excited state), the output shaft 43a retracts against the urging force of the first and second spring members 47 and 48, and the pair of swing pieces 42a and 42b From the position of FIG. 14 to the position of FIG. 15, the support blades 45a and 45b are rotated in the clockwise direction, and the right blade member 41a is rotated in the clockwise direction about the pivot shaft 51a. 41b rotates counterclockwise about the pivot shaft 45b to the open position.

  On the other hand, when the energization to the solenoid actuator 43 is stopped (demagnetized state), the output shaft 43a is extended by the urging force of the first and second spring members 47 and 48, and a pair of swing pieces 42a and 42b is obtained. 14 is rotated counterclockwise about the support shafts 45a and 45b from the position shown in FIG. 14, and the right blade member 41a is rotated counterclockwise about the pivot shaft 45, and the left blade member is rotated. 41b rotates in the clockwise direction around the pivot shaft 51b to be in the closed position.

Since the closing operation when the pair of blade members 41a and 41b return from the open position to the closed position is the same as that of the first embodiment, detailed description thereof will be omitted.
The pair of blade members 41a and 41b are biased by the strong total biasing force of the first and second spring members 47 and 48 from the open position to the 3/4 closed position where the pair of blade members 41a and 41b are closed by 3/4, for example. From the closed position to the fully closed position, the first spring member 47 is biased by a weak biasing force.

  When the blade members 41 a and 41 b are in the open position, the first and second spring members 47 and 48 are in a compressed state, and the first spring member 47 generates a biasing force with a larger amount of compressive deformation than the second spring member 48. The second spring member 48 generates a stronger biasing force than the first spring member 47 with a smaller amount of compressive deformation than the first spring member 47.

  When the blade members 41a and 41b are closed from this compressed state, the blade members 41a and 41b are initially biased by the biasing force of the first spring member 47 and the strong biasing force of the second spring member 48. For example, the closing operation is performed at a high return speed until the 3/4 closing position at which the second spring member 48 is fully extended.

  Next, as shown in FIG. 16, when the second spring member 48 is fully extended, the blade members 41a and 41b are urged by the urging force in the vicinity of the weak urging force of the first spring member, and thus the blade members 41a and 41b. Closes from the 3/4 closed position to the closed position at a slow return speed.

The operational effects of the pachinko gaming machine according to the second embodiment described above will be described.
When the player turns the launch handle 7, the game ball P is continuously thrown into the top of the game area 5 and passes through the gate 12, so that the normal symbol display 18b fluctuates and hits. In this case, the lower start winning opening 11b is opened.

When the pair of left and right blade members 41a and 41b return from the open position to the closed position, a ball-engaged state in which the game ball P is sandwiched between the pair of blade members 41a and 41b that are about to close may occur.
The blade members 41a and 41b are more resilient than the first spring member 47 of the second spring member 48 and the elastic biasing force of the first spring member 47 until the closing position (for example, 3/4 closed position) of the blade members 41a and 41b. Because it is energized by the force, it returns quickly from the open position to the middle position at a fast return speed.

  Then, after the second spring member 48 is fully extended, the blade members 41a and 41b are biased by the weak elastic biasing force of the first spring member 47 from the midway position to the closed position, and thus the blade members 41a and 41b. Since the return speed is also slowed down, the force to pinch the game ball P between the pair of blade members 41a and 41b becomes weak, so that the ball biting is less likely to occur.

The example which changes the said Example 2 partially is demonstrated.
1] In the second embodiment, the first and second spring members 47 and 48 are externally fitted in parallel at the output 43a of the solenoid actuator 43, but the first and second spring members 47 and 48 are attached to the output shaft 43a. You may externally fit in series.

  2] In the first embodiment, the present invention is applied to the pachinko gaming machine 1 classified as the first type pachinko machine, but the variable prize provided in the pachinko gaming machine classified as the second type pachinko machine called the blade mono. The present invention may be applied to the blade member of the mouth device.

  3] In addition, those skilled in the art can implement embodiments in which various modifications are added to the first and second embodiments without departing from the spirit of the present invention, and the present invention includes such modifications. To do.

  The present invention can be applied to various pachinko gaming machines other than the pachinko gaming machines disclosed in the embodiments.

P Game ball 1 Pachinko machine 4 Game board 4a Board surface 11 Start winning opening device 11b Lower starting winning opening 11c Opening / closing member 13 Large winning opening device 14 Large winning opening 20 Opening / closing members 21, 40 Driving means 29, 43 Solenoid actuators 29a, 43a Output shafts 30, 44 Spring members 34, 34A, 47 First spring members 35, 35A, 48 Second spring member 41a Right blade member 41b Left blade member

Claims (2)

In a pachinko machine equipped with a game board and a prize opening device having a prize opening,
The prize opening device includes an opening / closing member that opens and closes the winning opening, and a driving means that drives the opening / closing member to open and close.
The drive means includes a solenoid actuator that drives the opening and closing member in the opening direction, and a spring member that drives the opening and closing member in the closing direction,
The spring member has first and second spring members that drive the opening and closing member in a closing direction,
Said first spring member, Ri spring member der to generate a weak elastic biasing force than the second spring member,
The opening / closing member is urged by at least the urging force of the second spring member from the open position to a position near the closed position to perform a closing operation, and from the position close to the closed position to the closed position, the first spring member is attached. A pachinko gaming machine that is closed only by being energized only by power .   2. The pachinko gaming machine according to claim 1, wherein the first and second spring members are compression coil springs externally fitted in series or in parallel with the output shaft of the solenoid actuator.