JP2010088601A - Pachinko game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a Pachinko game machine capable of smoothly opening/closing a long-length opening/closing lid member, preventing bounding when closing the opening/closing lid member and surely preventing flapping when closing the opening/closing lid member. <P>SOLUTION: A second large winning hole device 14 includes: an opening/closing lid member 21 opened/closed about a shaft orthogonally crossing a board surface 4c; a drive means 29 openingly/closingly actuating the opening/closing lid member 21; a pivot 25 turnably pivoting the lower end of the opening/closing lid member 21; and a weight member 22 provided at the chip of an arm 24 which extends from the lower end of the opening/closing lid member 21 to the opposite side of the opening/closing lid member 21 with respect to the pivot 25. The opening/closing lid member 21 is urged towards a closing position by the weight member 22 and stands still at a predetermined closing position. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a pachinko gaming machine provided with a special prize opening device having an opening / closing member that opens and closes a special prize opening.

  Conventionally, as a pachinko gaming machine, there is known a pachinko gaming machine classified as a second type pachinko machine called “feather”. This pachinko gaming machine includes a variable prize winning device having an opening / closing member (opening / closing blades) that performs an opening / closing operation. The opening and closing blades open and close when the game ball wins the starting prize opening, and the prize opening is opened and closed. The

  For example, Patent Document 1 discloses a gaming machine in which a variable prize winning device is arranged in a central region of a board surface of a gaming board. This variable winning combination device has a pair of left and right symmetrical opening and closing blades that open and close around an axis orthogonal to the board surface of the game board, and a solenoid actuator that opens and closes the opening and closing blades. When the solenoid actuator is energized and driven, a pair of opening and closing blades move to the open position that opens the winning opening, and when the solenoid actuator is deenergized, the opening and closing blade moves from the open position to the closed position that closes the winning opening. To do.

  On the other hand, in recent years, pachinko machines classified as first-class pachinko machines have a center role, special symbol display means for variably displaying special symbols, and first and first separately arranged on the game board. There are provided first and second grand prize opening devices for opening and closing two big prize winning openings, respectively. The first big prize opening device has a first opening / closing member that is provided below the center role and that opens and closes around a horizontal axis parallel to the board surface, and driving means that drives the first opening / closing member to open and close. . The second big winning device has a second opening / closing member provided on the left side of the center accessory and opening / closing about an axis orthogonal to the board surface, and driving means for opening / closing the second opening / closing member.

When a game ball wins at the start winning opening, the special symbol display means the special symbol is changed and displayed for a predetermined time. Is stopped and displayed. At this time, one of the first and second opening / closing members performs an opening / closing operation according to the type of the big hit mode, and the first and second big winning openings are opened / closed.
JP 2008-1113747 A

  In a pachinko gaming machine in which the above-described opening / closing member opens and closes around an axis perpendicular to the board surface, in particular, the long opening / closing member is often made of a synthetic resin material and lightweight. For this reason, there is a risk of rattling when the energization of the solenoid actuator is stopped and the opening / closing member moves from the open position to the closed position. Further, when the opening / closing member is closed, there is a problem that the opening / closing member bounces without stopping at the closed position and flutters. As a result, the appearance of the opening / closing member becomes worse, and there is a risk of misunderstanding that the opening / closing member is malfunctioning.

  An object of the present invention is to provide a pachinko gaming machine that can smoothly open and close the opening / closing lid member, suppress bounce when the opening / closing lid member closes, and prevent fluttering when the opening / closing lid member closes. That is.

In order to achieve the above object, the present invention employs the following configuration. Note that the reference numerals in parentheses show an example of the correspondence relationship with the drawings in order to help understanding of the present invention, and do not limit the scope of the present invention.
The pachinko gaming machine according to claim 1 is a pachinko gaming machine (1) provided with a game board (4), a center accessory (17), and a grand prize opening device (14) for opening and closing the big prize opening (14a). It is. The grand prize opening device (14) is an open / close lid member (21, 21A) that opens and closes around an axis perpendicular to the board surface (4c) of the game board (4), and the open / close lid member (21, 21A) is driven to open and close Driving means (29) and a pivot shaft (25) which pivotally supports the lower end portion or the vicinity of the lower end of the open / close lid member (21, 21A) on the game board (4) and is orthogonal to the board surface (4c). ) And a weight member provided at the tip of the arm portion (24) extending from the lower end of the opening / closing lid member (21, 21A) to the opposite side of the opening / closing lid member (21, 21A) with respect to the pivot shaft (25) (22).

  In this pachinko gaming machine (1), the open / close lid member (21, 21A) is opened by the driving means (29) and is closed to open the big prize opening (14a) and closed to the big prize opening (14a). Rotating moment that biases the opening / closing lid member (21, 21A) toward the closed position by the weight member (22) works, so that the opening / closing lid member (21) is stationary at the predetermined closing position. To do.

The pachinko gaming machine according to claim 2 is characterized in that, in the invention of claim 1, the weight member (22) comprises a decorative member (22a) and a weight (22b) fixed to the decorative member (22a).
The pachinko gaming machine according to claim 3 is characterized in that, in the invention of claim 1, the weight member (22) comprises a decorative member (22a).

  In the pachinko gaming machine according to claim 4, in the inventions according to claims 1 to 3, the special prize opening device (14) is disposed on the left side of the center accessory (17), and the opening / closing lid member (21) is substantially vertically oriented. And a closed position that is rotated by a predetermined angle in the counterclockwise direction from the closed position.

  According to the invention of claim 1, the prize winning opening device includes an opening / closing lid member, a driving means, a pivot shaft pivotally supporting the opening / closing lid member, and an opening / closing lid member with respect to the pivot shaft. Since the weight member provided at the tip of the arm portion extending from the lower end of the opening / closing lid member to the opposite side is provided, a rotational moment that urges the opening / closing lid member toward the closed position by the weight member acts. The closing operation of the member can be performed smoothly.

  In addition, the weight member makes the lower side of the lower end portion of the opening / closing lid member lower than the pivot shaft in the vicinity of the lower end, and the opening / closing lid member is biased toward the closed position. Can be prevented, and the opening / closing lid member can be stopped at a predetermined closed position. Therefore, it is possible to reliably prevent fluttering when the opening / closing lid member is closed.

  In particular, in the case of an open / close lid member having a long length, the opening / closing operation can be smoothly performed by the weight member without the open / close lid member being rattled. Further, it is possible to reliably prevent the bounce when the opening / closing lid member is closed, and to reliably prevent fluttering when the opening / closing lid member is closed.

According to the invention of claim 2, since the weight member is composed of the decorative member and the weight fixed to the decorative member, the same effect as in claim 1 can be obtained.
According to the invention of claim 3, since the weight member is made of a decorative member, the same effect as that of claim 1 is obtained.

  According to the fourth aspect of the present invention, the big prize opening device is disposed on the left side of the center accessory, and the opening / closing lid member is rotated by a predetermined angle in the substantially vertical closed position and in the counterclockwise direction from the closed position. Therefore, it is possible to prevent the opening / closing lid member from bouncing when it closes in the vertical direction, and to reliably prevent fluttering when the opening / closing lid member is closed. it can.

This embodiment is an example of the case where the present invention is applied to a pachinko gaming machine provided with a game board, a center accessory, and a big prize opening device that opens and closes a big prize opening.
Hereinafter, the best mode for carrying out the present invention will be described based on examples.

  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 at 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 the 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 4 c includes a number of obstacle nails 10, a start winning opening device 11, a gate 12, a first big winning opening device 13, and a second big winning opening device 14. A normal winning opening 15, an image display 16, and a center accessory 17 are mounted in the game area 5, a game display board 18 is mounted outside the game area 5, and a control device 20 (see FIG. 7) on the back side of the game board 4. Is installed. The game board 4 includes a surface board 4a that forms a board surface 4c, and a game board body 4b that is a plywood disposed on the back side of the surface board 4a (see FIG. 5).

  The game ball P thrown into the top of the game area 5 hits a number of obstacle nails 10 and the windmill 10a in the game area 5 and falls while changing the direction, and the start winning ports 11a and 11b and the gate 12 of the start winning port device 11 are dropped. The first grand prize port 13a of the first grand prize port device 13, the second grand prize port 14a of the second grand prize port device 14, and the plurality of ordinary prize ports 15 are won and discharged out of the game area 5. Or it falls to the lowest end and is discharged out of the game area 5 from the out port 19.

  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 provided with a pair of left and right opening and closing members called electric chews, 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, a start opening SW11d for detecting a game ball P winning in the start winning openings 11a, 11b, It has an electric Chu solenoid that opens and closes the opening / closing member 11c. The opening / closing member 11c is configured such that two short wing members having a symmetrical shape rotate about an axis orthogonal to the board surface 4c, 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. Note that the opening / closing member 11c shown by the dotted line in FIG. 2 is in the closed position.

  The gate 12 is disposed on the left side of the center accessory 17, and a gate SW for detecting the game ball P that has passed through the gate 12 is attached. 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 first grand prize opening device 13 is arranged on the lower side of the starting prize opening device 11, and has won the first big prize opening 13a, the opening / closing member 13b for opening and closing the first big prize opening 13a, and the first big prize opening 13a. A first big prize opening SW13c for detecting the game ball P and a solenoid actuator 13d for opening and closing the opening / closing member 13b are provided. The opening / closing member 13b is configured to operate around a horizontal axis parallel to the board surface 4c, and closes the first big prize opening 13a in the closed position to win the game ball P in the first big prize opening 13a. In the open position, the game ball P can be awarded to the first grand prize opening 13a. 2 is in the open position.

  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 opening 11a, 11b is displayed after the variable display, and on the normal symbol display 18b, the game ball P passes through the gate 12. The result of the lottery performed in response to this is displayed after the variable display.

  During the change display of the special symbol display 18a, the number of winning balls won in the start winning ports 11a and 11b, and the number of the reserves for which the special symbol variation has not been executed yet is reserved up to four. On the symbol hold lamp 18c, the number of hold of the special symbol is displayed. 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 holdings for which the normal symbol fluctuation has not been executed yet are held up to four. The symbol holding lamp 18d displays the number of holdings 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, as shown in FIG. 2, an effect symbol composed of three symbol strings is displayed. 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 or not the special symbol stop mode of the special symbol display is successful 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.

  As shown in FIG. 2, a center accessory 17 is arranged in a substantially circular area at the center of the board surface 4 c of the game board 4, and a left partition 17 a and a lower partition as an outer peripheral portion surrounding the center accessory 17. A portion 17b, a right partition portion 17c, and an upper partition portion 17d are provided. A second big prize opening device 14 for opening and closing the second big prize opening 14a is provided in the middle part of the left partition 17a of the center accessory 17.

Next, the second grand prize opening device 14 will be described in detail.
As shown in FIGS. 3 to 6, the second grand prize opening device 14 includes an opening / closing lid member 21 that opens and closes around an axis perpendicular to the board surface 4 c of the game board 4 and a second major prize opening 14 a elongated in the vertical direction. A drive mechanism 23 that opens and closes the opening / closing lid member 21, a pivot shaft 25 that pivotally supports the opening / closing lid member 21, and an arm portion opposite to the opening / closing lid member 21 with respect to the pivot shaft 25. 24 and a weight member 22 provided at 24.

  The second big prize opening 14a is provided with a second big prize opening SW14f for detecting the game ball P that won the second big prize opening 14a. The front surface of the second grand prize opening 14a is covered with a cover body 31 so that the game ball P that has won the second big prize opening 14a does not jump out to the front side (in the direction of the transparent plate 3b). The game ball P that has won the second grand prize opening 14a flows into the game ball inflow port (not shown), and is detected at the second big prize opening SW14f, and thereafter, the game ball payout passage provided on the back side of the game board 4 ( (Not shown).

  The opening / closing lid member 21 has a pivot shaft 25 orthogonal to the board surface 4c at its lower end, and is rotatably mounted on a synthetic resin bearing member 30 fixed to the game board main body 4b. Thus, the opening / closing lid member 21 is configured to be switchable between a closed position shown in FIGS. 3 to 5 and an open position shown in FIG. When the opening / closing lid member 21 is in the closed position, the second big prize opening 14a is closed, and when in the open position, the second big prize opening 14a is opened.

  The opening / closing lid member 21 is made of synthetic resin, and includes a front design plate 21a and a lid main body portion 21b integrally formed with the design plate 21a. The lid main body 21b has a predetermined width in a direction orthogonal to the board surface 4c, and is made hollow, for example, with a synthetic resin material in order to reduce the weight and reduce the moment of inertia and increase the responsiveness of the opening / closing operation.

  For example, a 4-character string “chance” is displayed on the design plate 21 a on the front surface of the opening / closing lid member 21. A light transmission window of a character string of “chance” for 4 characters is formed on the front surface, and one or a plurality of light emitting diodes (LEDs) are provided in the hollow portion thereof, and these light emitting diodes are turned on or blinked. Thus, the four-character string “chance” may be emitted or blinked. Further, the four-character string “chance” may be constituted by a three-dimensional character that swells at a predetermined height from the front surface of the design board 21a.

  The surface on the game ball inflow side of the lid main body portion 21b when the opening / closing lid member 21 is in the open position is formed as a flat guide surface 21c. As shown in FIG. 6, when the opening / closing lid member 21 is in the open position, the guide surface 21c is lowered to the right and has a gentle slope. The inclination angle of the guide surface 21c with respect to the horizontal is, for example, 10 to 20 degrees, but is not limited to this inclination angle.

  A rod-shaped arm portion 24 that extends downward from the lower end of the opening / closing lid member 21 to a side opposite to the opening / closing lid member 21 with respect to the pivot shaft 25 is fixed to the front end portion of the lower end of the opening / closing lid member 21. Yes. A weight member 22 having a predetermined weight heavier than the opening / closing lid member 21 is provided at the distal end portion of the arm portion 24.

  The weight member 22 is a gimmick 22a as a decorative member made of a synthetic resin turtle character fixed to the arm 24, and a spherical weight 22b formed of a metal material (for example, lead) fixed to the gimmick 22a. It consists of and. Due to the weight member 22, the lower side of the lower end portion of the opening / closing lid member 21 is heavier than the pivot shaft 25, and a rotational moment is applied to bias the opening / closing lid member 21 toward the closed position.

  As shown in FIGS. 4 to 6, the drive mechanism 23 that opens and closes the opening / closing lid member 21 includes an arm member 26 that is integral with a pivot shaft 25 that pivotally supports the opening / closing lid member 21, and is integrally formed with the arm member 26. An actuating pin 27, an engaging member 28 engaged with the actuating pin 27, and a solenoid actuator 29 (second big prize opening solenoid) as a driving means capable of driving the engaging member 28 for a predetermined stroke. Have.

The pivot shaft 25, the arm member 26, and the operating pin 27 are integrally formed of a material such as synthetic resin, aluminum alloy, or magnesium alloy.
The front end portion of the pivot shaft 25 is fitted and fixed in the fitting hole 32 at the end of the opening / closing lid member 21. The rear portion of the pivot shaft 25 is inserted and supported by the bearing member 26 and protrudes to the back side of the game board 4, and the base end portion of the arm member 26 extending in a predetermined length parallel to the board surface 4 c is integrated with the rear end portion. The operating pin 27 is integrally formed at the distal end portion of the arm member 26, and the operating pin 27 projects rearward from the arm member 26.

  The solenoid actuator 29 is disposed in an inclined posture behind the game board 4, and the axis of the output shaft 29 a is operated when the open / close lid member 21 is in the closed position and when it is in the open position. It is parallel to the line connecting the axis of the pin 27. However, the arrangement is not limited to this.

  An engagement member 28 made of, for example, a synthetic resin or a material such as an aluminum alloy or a magnesium alloy is fixed to the tip of the output shaft 29a of the solenoid actuator 29. In the engaging member 28, a long hole 28a having a length about 1.5 times the diameter of the operating pin 27 is formed perpendicular to the axis of the output shaft 38a. Therefore, when the operating pin 27 draws an arc locus when the opening / closing lid member 21 is opened and closed, the operating pin 27 moves in the elongated hole 28a, so that the operating pin 27 can be smoothly driven by the solenoid actuator 29.

  As shown in FIG. 7, the control device 20 includes a main control device 40 and a sub control device 41. The main control device 40 includes a main control board 41a, a CPU, a ROM, and a RAM mounted on the main control board 41a. The sub-control device 41 includes, as sub-control boards, a payout control board 42, an effect control board 43, an image control board 44, a lamp control board 45, and a CPU, ROM, and RAM mounted on the plurality of control boards 42 to 45, respectively. It has. The effect control board 43 is also mounted with an RTC (real time clock).

  The main control board 40a receives detection signals from the gate SW12a, the start opening SW11d, the first big prize opening SW13c, the second big prize opening SW14f, and the normal prize opening SW15a, and also receives control information from the payout control board 42. The electric chew solenoid 11e, the first big prize opening solenoid 13d, the second big prize opening solenoid 29, the special symbol display 18a, the normal symbol display 18b, the special symbol holding lamp 18c, and the normal symbol holding lamp 18d are controlled.

  The payout control board 42 receives control information from the main control board 40a, drives and controls the payout drive motor 46, and each of the winning balls 11a, 11b, 13a, 14a, 15 for each winning ball 11 The number of winning balls set for each of the winning openings 11a, 11b, 13a, 14a, 15 is paid out to the storage tray 6. The effect control board 43 receives control information from the main control board 40a and receives an input signal from the effect button 9, and outputs control information to the image control board 44 and the lamp control board 45, respectively.

  The image control board 44 receives control information from the effect control board 43 and controls the image display 16 and the speaker 47, and the lamp control board 45 receives control information from the effect control board 43 and mainly controls the image control board 43. The frame lamp 3c, the panel lamp 48, and the movable accessory 49 are controlled in synchronization with the control by 44. For example, the speaker 47 and the frame lamp 3 c are provided on the open / close door 3, and the board lamp 48 and the movable accessory 49 are provided at predetermined positions on the game board 4.

The pachinko gaming machine of the embodiment described above will be described.
When the main control board 40a wins in the big hit lottery performed when the game ball P wins the start winning opening 11a, 11b, one of the first and second big winning ports 13a, 14a is used as the big win game. After opening, a game ball P having a prescribed number of winning balls (for example, 10) is won, or one of the first and second big winning holes 13a, 14a is closed after a specified time (for example, 30 seconds) has elapsed. The first and second big prize opening devices 13 and 14 are controlled so as to continue a plurality of rounds (for example, 15 rounds).

  When the solenoid actuator 29 is energized and driven (excited state), the engagement member 28 engaged with the output shaft 29a is moved forward by a predetermined stroke, and the arm member 26 and the opening / closing lid via the elongated hole 28a and the operation pin 27. The member 21, the arm 24, and the weight member 22 are integrally rotated counterclockwise about the pivot shaft 25 from the closed position shown in FIGS. 3 to 5 to the open position shown in FIG. 21 falls to the right and assumes a gently inclined posture, and the second grand prize winning opening 14a is opened.

  On the other hand, when the energization to the solenoid actuator 38 is stopped (demagnetized state), the engaging member 28 is moved backward, and the arm member 26, the opening / closing lid member 21, the arm portion 24, and the weight via the elongated hole 37a and the operating pin 27. The member 22 is integrally rotated clockwise about the pivot shaft 25 from the open position shown in FIG. 6 to the closed position shown in FIGS. 3 to 5, so that the opening / closing lid member 21 is in a substantially vertical posture. The two major winning openings 14a are closed.

  When the opening / closing lid member 21 moves from the open position to the closed position, a rotational moment that urges the opening / closing lid member 21 toward the closed position is acted by the gimmick 22a and the weight 22b. It is done smoothly without any problems.

  Further, when the opening / closing lid member 21 is closed at the closed position, the lid member 21 does not bounce and stops. Therefore, it is possible to reliably prevent the flutter when the opening / closing lid member 21 is closed.

Next, a modified example in which the above embodiment is partially modified will be described.
1] In the embodiment, the weight member 22 is composed of the gimmick 22a and the weight 22b. However, the weight member 22 is composed only of the gimmick as a decorative member made of characters such as people and animals having a predetermined weight heavier than the opening / closing lid member 21. May be.
2] The weight 22b is not limited to the spherical one made of lead or the like in the embodiment.

  3] In the embodiment, the pivot shaft 25 for pivotally supporting the opening / closing lid member 21 is provided at the lower end of the opening / closing lid member 21, but it may be provided near the lower end of the opening / closing lid member 21.

  4] As shown in FIGS. 8 and 9, in the opening / closing lid member 21A, the lid body 21d may be formed of a single plate-like member. In this case, the lid main body portion 21d is integrally formed with the design plate 21a and has a predetermined width in a direction orthogonal to the board surface 4c.

5] The shape and size of the opening / closing lid member 21 of the embodiment is merely shown as an example, and may be appropriately changed within a range not impairing its function.
6] The solenoid actuator 29 may have a structure in which the output shaft is retracted when energized and the output shaft is extended when energization is stopped. Instead of the solenoid actuator 29, a piezoelectric actuator or an electric motor may be employed.

7) The drive mechanism 23 is not limited to the one in the embodiment, and any other configuration may be used as long as the open / close lid member 21 is driven to open and close via a link member or a link mechanism.
8] In the above embodiment, the present invention is applied to the pachinko gaming machine 1 classified as the first type pachinko gaming machine. However, the present invention may be applied to the second type pachinko gaming machine called a blade mono. For example, the present invention may be applied to a variable prize opening accessory device having a pair of opening and closing blades.

  8] Others can be implemented by those skilled in the art without departing from the spirit of the present invention, and various modifications can be made to the above-described embodiments. The present invention includes such modifications. is there.

1 is a 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 perspective view of a game board principal part, an opening-and-closing lid member, and a weight member. It is a front view when the opening-and-closing lid member containing a drive mechanism is a closed position. It is the VV sectional view taken on the line of FIG. It is a front view when the opening-and-closing lid member containing a drive mechanism is an open position. It is a block diagram of the control system of a pachinko gaming machine. This corresponds to FIG. 6 according to the modified form. It is the IX-IX sectional view taken on the line of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Pachinko machine 4 Game board 4c Board surface 14 2nd big prize opening device 14a 2nd big prize opening 17 Center accessory 21, 21A Opening / closing lid member 22 Weight member 22a Gimmick (decorative member)
22b Weight 24 Arm 25 Pivot shaft 29 Solenoid actuator (drive means)

Claims (4)

In a pachinko gaming machine equipped with a game board, a center role, and a grand prize opening device that opens and closes a grand prize opening,
The big prize opening device is
An open / close lid member that opens and closes around an axis perpendicular to the surface of the game board;
Driving means for opening and closing the opening / closing lid member;
A pivot shaft that pivotally supports the lower end portion of the opening / closing lid member or the vicinity of the lower end thereof on the game board and is orthogonal to the board surface;
A weight member provided at the tip of the arm portion extending from the lower end of the opening / closing lid member to the opposite side of the opening / closing lid member with respect to the pivot shaft;
A pachinko machine characterized by that.   The pachinko gaming machine according to claim 1, wherein the weight member includes a decorative member and a weight fixed to the decorative member.   The pachinko gaming machine according to claim 1, wherein the weight member is a decorative member. The big prize opening device is arranged on the left side of the center object,
The open / close lid member is configured to rotate between a substantially vertical closed position and an open position rotated by a predetermined angle in the counterclockwise direction from the closed position. A pachinko gaming machine according to any one of the above.