JP2004024908A - Locking device for game board in pachinko game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To speedily and easily detach and attach a game board by locking and unlocking it by operation with the fingertip without using any tools. <P>SOLUTION: A locking device H is composed of a holder 40 which is placed in a predetermined position facing the inner periphery of a set opening 13 formed in a set holding frame 12 and a locking member 55 which is detachably fitted to the holder 40 and is rotatably supported. The holder 40 has a latching part 41 which can latch the rear of the engaging part of the game board and a shaft hole 42. With respect to the locking member 55, a rotating support disk 57 which is supported by the latching part 41 is integrally formed at the back of a shaft 56 which is rotatably fitted to and supported by the shaft hole 42 of the holder 40. Also, a latching part 58 which can be engaged in front of the holder 40, an operation part 59 which can be operated with fingertips and an engaging part 60 which can be elastically engaged on the front side of the game board are integrally formed on the front side of the shaft 56. <P>COPYRIGHT: (C)2004,JPO

Description

The present invention relates to a locking device for a game board in a pachinko game machine, and more particularly, a game board is set to be detachable and replaceable from a front side with respect to a set opening of a set holding frame located behind a window of a front frame. The present invention relates to a locking device for fixing and holding the game board to a set holding frame in a pachinko game machine.

で は In this type of game machine represented by a pachinko machine, various game components are collectively mounted on a front frame which is detachably attached to and openable and closable with an outer frame forming the body. For example, a game board, which is one of the game components, is set in a state where the game surface is directed forward to a set opening of a set holding frame located behind the window of the front frame. Here, when the gaming machines are classified based on the set form of the gaming board, a type configured to be attached / detached from the front side with the window component (glass door) on the front side of the front frame being opened (removable on the front side of the gaming board). Type) and a type in which the back mechanism board on the back side of the front frame opened from the outer frame is opened or removed and attached / detached from the back side (game board back side detachable type).

In any of the above-described types of gaming machines, the gaming board set on the front side in the set opening of the set holding frame can be properly accommodated in the set opening without rattling. Is of paramount importance. Therefore, for example, a locking device (engagement holding part) is provided around the inside of the set port, and on the premise that each locking device is engaged or disengaged with the game board set in the set port, There is a strong demand for quick and easy detachment with simple and easy operation.

However, in the conventional pachinko gaming machines, the technical requirements described above were not sufficiently satisfied, and it was difficult to say that they could be performed. That is, the locking device for the game board is mainly made of a synthetic resin or a metal, and each of them is generally disposed at the upper and lower portions on both sides in the set opening of the set holding frame. However, since this locking device is of a type that can be operated from the back side of the front frame, the front frame must be opened each time when engaging and disengaging the device itself when attaching and detaching and replacing the game board. Involves inconvenience. In particular, in the game board front detachable type described above, there is a problem that the advantage of the front detachable cannot be sufficiently utilized due to the restriction of the form of the engagement holding means.

Therefore, in order to avoid the above-mentioned inconvenience, a locking device capable of performing a locking operation and an unlocking operation from the front side of the front frame has been newly proposed in the game board front side detachable type (for example, see Patent Document 1). The panel mounting / detaching work was facilitated, and the advantage of front side mounting / dismounting was utilized.
JP-A-9-290048

However, in the locking device, the locking and unlocking of the game board are performed based on the rotational displacement, but the rotational operation is designed on the assumption that a tool such as a hexagon wrench is used. . However, the locking operation and the unlocking operation from the front side of the front frame using the tool are unexpectedly troublesome and troublesome. Moreover, if the user does not have the tool, locking and unlocking operations with the fingertips are impossible, so that the game board cannot be attached or detached. Was inherent.

That is, the present invention has been proposed in order to preferably solve the above-described problem, and it is not necessary to open the front frame itself. The game board set from the front side of the frame can be locked and unlocked by fingertip operation without using any tools, so that the game board can be quickly and easily attached and detached, and the turntable corresponding to the operation hole It is an object of the present invention to provide a locking device for a game board in a pachinko game machine that can lock and unlock a game board by engaging a moving operation tool and rotating a locking tool.

In order to overcome the above-described problems and appropriately achieve the intended purpose, a locking device for a game board in a pachinko game machine according to the present invention,
The game board (D) can be removed and replaced from the front side with respect to the window (11) of the front frame (B) attached to the outer frame (A) and the set opening (13) of the set holding frame (12) located on the back side In the pachinko machine set in
A holding portion (40) provided at a predetermined position facing the inner periphery of the set opening (13) opened in the set holding frame (12), and is detachably fitted and set to the holding portion (40). With a locking device (55) rotatably supported,
In the holding portion (40), a locking portion (41) that can lock the back side of the engaging portion (32) of the game board (D) set in the set opening (13) and a shaft hole opening ( 42) to form
In the locking device (55), the locking portion (41) is provided on the rear side of the shaft portion (56) rotatably fitted and supported in the shaft hole portion (42) of the holding portion (40). A supported rotating support (57) is integrally formed, and can be locked to the front side of the shaft part (56) at the front side of the holding part (40) and has a hexagonal operation hole (61 ) Is formed, a boss-shaped engaging portion (58), an operating portion (59) that can be rotated by hanging a fingertip, and an engaging portion (32) front side of the gaming board (D). An integrally formed engaging portion (60) that can elastically engage with the
The operation portion (59) has a knob-like shape extending in a direction orthogonal to the axial direction of the shaft portion (56), and has a central end surface in the longitudinal direction thereof and a cylindrical surface of the boss-shaped locking portion (58). Are connected,
The engaging portion (60) is formed on an end surface of the operation portion (59) opposite to an end surface connected to the locking portion (58), and has a central portion near the rotation support plate (57). It is characterized in that it has an engagement projection (62) projecting to the side.

Further, in order to overcome the above problems and appropriately achieve the intended purpose, a locking device for a game board in a pachinko gaming machine according to another invention of the present application,
The game board (D) can be removed and replaced from the front side with respect to the window (11) of the front frame (B) attached to the outer frame (A) and the set opening (13) of the set holding frame (12) located on the back side In the pachinko machine set in
A holding portion (40) provided at a predetermined position facing the inner periphery of the set opening (13) opened in the set holding frame (12), and is detachably fitted and set to the holding portion (40). With a locking device (55) rotatably supported,
In the holding portion (40), a locking portion (41) that can lock the back side of the engaging portion (32) of the game board (D) set in the set opening (13) and a shaft hole opening ( 42) to form
In the locking device (55), the locking portion (41) is provided on the rear side of the shaft portion (56) rotatably fitted and supported in the shaft hole portion (42) of the holding portion (40). A supported rotating support (57) is integrally formed, and can be locked on the front side of the shaft part (56) on the front side of the holding part (40), and has a hexagonal operation hole (61 ) Is formed, a boss-shaped engaging portion (58), an operating portion (59) that can be rotated by hanging a fingertip, and an engaging portion (32) front side of the gaming board (D). An integrally formed engaging portion (60) that can elastically engage with the
The operation portion (59) has a knob-like shape extending in a direction perpendicular to the axial direction of the shaft portion (56), and a concave portion forming a part of the operation hole (61) is formed in a central end surface in the longitudinal direction. The central end surface and the cylindrical surface of the locking portion (58) are provided continuously.

[Action]
In mounting the game board, the game board is stored and set from the window of the frame body in the front frame to the set opening of the set holding frame with the glass door in front of the front frame opened, so that the game board is in the set mouth. It is stored and held in a standing state. Then, a fingertip is hung on the operating portion of the locking device in each locking device disposed at a required position in the set opening, and the locking device is displaced to the locking position by rotating the locking device in a predetermined direction. The game board can be elastically engaged with the game board to elastically fix and hold the game board. On the other hand, in the removal of the game board, each of the locking devices in the locked state of the game board is hung with a fingertip, and each of the locking devices is rotated in the opposite direction to the front, so that each of the game devices can be removed from the game board. The engagement of the engaging portion of the locking device is released, and the game board can be taken out from the set port. As described above, the locking device for locking and unlocking the game board can be easily and easily performed only by the operation of the fingertip without using any rotating operation device, etc., thereby streamlining and facilitating the work relating to the attachment and detachment of the game board. Is achieved. Locking and unlocking the game board by engaging a corresponding turning operation tool with an operation hole formed in the locking portion of the locking tool and turning the locking tool with the operation tool. Is also possible.

According to the locking device for a game board in the pachinko game machine according to the first and second aspects of the present invention, the game board can be quickly and easily attached and detached by a simple procedure operation on the front side of the front frame. And, in attaching and detaching the game board, the locking device in each locking device can perform a rotation operation by hanging a fingertip on the operation unit, without using any special rotation operation tool (tool). Since the game board can be locked and unlocked quickly, there is an advantageous effect that the game board can be attached and detached very easily and quickly. It is to be noted that the locking and unlocking of the game board can be performed by engaging a corresponding rotating operation tool with an operation hole formed in the locking portion of the locking tool and rotating the locking tool with the operating tool. Is also possible.

Next, a locking device for a game board in a pachinko gaming machine according to the present invention will be described in detail with reference to the accompanying drawings with reference to preferred embodiments. In the present embodiment, a case of a general pachinko machine in which a game board for a pachinko ball is set inside a window frame opening of a front frame is mainly shown as a pachinko game machine.

(Schematic explanation of pachinko machine)
The pachinko machine P according to the present embodiment has, as schematically shown in FIG. 1 as an outline of the basic configuration thereof, a front side of an opening of a vertical rectangular outer frame A in front of a vertical rectangle for setting various game components. The frame B is assembled so as to be able to be opened and closed and attached and detached by using the connecting support means and the locking means. On the front side of the front frame B, a later-described glass window C, which is a see-through protective window of the game board D, and an upper ball tray E can be opened and closed together in a laterally open form using individual connection support means and the like. one being assembled aligned, the front frame hitting operation unit G ₁ and the like in the sphere pan F and shot launchers G below the bottom of B is mounted set, on the back side in various spheres route and sphere processing before frame B -A mechanism set board (not shown) provided with a payout section and the like is set.

(Front frame)
As shown in FIG. 2, the front frame B is entirely formed of synthetic resin. The front frame B is formed to have an outer shape that matches the opening front area of the outer frame A, and has a front vertical rectangular window frame inside. (Window) A frame 10 having an opening 11 and a set holding frame 12 integrally formed on the back side of the frame 10 and having an opening 13 for a game board opening inside the front of the window frame 11, and It is an inner / outer double frame form connected continuously in front and back. In the frame 10, an installation board 14 for installing a lower ball tray F, a hitting portion of the hitting device G and the like is formed below the window frame opening 11, and a prize is formed in the center portion. A supply port 15 for the sphere is opened, and an installation portion 17 for installing the lightning decoration portion 16 is formed over the upper edge portion and the right edge portion of the window frame opening 11. Further, the window frame opening 11 is also used as a set surface area and a doorway of the game board D which is put in and out (removed) from the front side, and an upper ball tray E can be opened and closed in a lower opening surface area thereof. It is possible to do. Then, three peripheral edges (upper edge and left and right side edges) of the front surface of the window frame opening 11 are recessed to define a set surface area 18 in which the glass door C can be aligned and accommodated.

On the other hand, in the set holding frame 12, a game auxiliary panel 20 is integrally formed at a position matching the upper ball tray E inside the lower portion of the window frame opening 11, and the upper edge of the game auxiliary panel 20 is used as a reference. The opening 13 is opened. In addition to the out path 21 being formed on the back side of the game auxiliary panel 20, a supply port 22 for a prize ball, a ball collection path 23 and the like are formed, and a ball receiving case 25 having a speaker 24 built therein. The firing rail member 26 is set (see FIG. 1). At the four corners of the inner periphery of the set opening 13, slanted wall portions 27 formed at approximately 45 degrees are formed integrally with the set holding frame 12, and these slanted wall portions 27 are formed. , A locking device H according to the present embodiment is installed as described later. Further, on the inner peripheral end face of the set port 13, projections 19, 19 for positioning with respect to the game board D are formed.

(Game board)
As shown in FIG. 1, the game board D is formed into a substantially square shape that fits inside the set opening 13 of the set holding frame 12, and various guides are provided in a substantially circular guide rail 30 attached to the front surface thereof. A game area 31 in which a required game can be developed by arranging game parts such as a symbol display device, a winning device, and the like. The upper and lower and left and right corners are cut off at 45 degrees, and the locking device 55 of the locking device H disposed on the set holding frame 12 is engaged and disengaged near four corners as described later. A receiving portion (engaging portion) 32 is formed (see FIG. 5).

(Locking device)
Next, in the pachinko machine P configured as described above, in order to fix and hold the game board D set in the set opening 13 of the set holding frame 12 located behind the window frame opening 11 in the front frame B. The following describes a locking device for a game board. The locking device H according to the present embodiment is disposed on each of the slanted wall portions 27 formed at each of the even-angled portions of the setting port 13, and as shown in FIGS. A holding unit 40 is provided, and a locking device 55 that is removably fitted to the holding unit 40 and that is rotatably supported.

(Holding part)
The holding portion 40 is formed integrally with a 45-degree inclined end portion 28 facing the inside of the setting port 13 of the slanted wall portion 27, and is engaged with the game board D accommodated and set in the setting port 13. It has a locking portion 41 that can lock the back side of the mating portion 32 and a shaft hole portion 42 to which the locking tool 55 is attached. The locking portion 41 includes a circular holding piece 43 located on the rear end side of each of the inclined wall portions 27 and a shaft support portion 44 located on the inclined end portion 28 in front of the holding piece 43. It is formed in a two-stage continuous state. On the rear side of the holding piece 43, a bottomed circular fitting seat portion 45 for the rotating support plate 57 of the locking tool 55 is formed. On the other hand, the shaft hole portion 42 extends between the holding piece 43 and the shaft support portion 44 in the front-rear direction of the setting port 13, and the shaft hole 46 extends inward from the setting hole 13 (the inclined end portion). The locking device 55 is mounted on the locking portion 41 through the insertion opening 47.

規 制 Further, on the front surface of the inclined wall portion 27, a regulating portion 48 for regulating the unlocked end position of the locking device 55 is formed integrally with the wall portion 27. The restricting portion 48 protrudes in an arc shape with reference to the center of the shaft hole portion 42, and has a guide wall portion 49 and a guide slope 50 for an engaging protrusion 62 formed on an engaging portion 60 of the locking device 55. An engagement recess 51 for positioning is formed.

(Locking device)
The locking device 55 is made of a synthetic resin, and all of the four locking devices 55 are made of a synthetic resin, and are configured in the same common format as shown in FIGS. 3, 4, and 6. That is, each locking device 55 has, as a basic configuration, a rotating support supported by the locking portion 41 at a rear side of a shaft portion 56 rotatably fitted and supported by the shaft hole portion 42. A board 57 is integrally formed, and a locking portion 58 that can be locked to the front side of the holding portion 40, a finger-operable operation portion 59, and an engagement receiving portion of the game board D, on the front side of the shaft portion 56. An engaging portion 60 that can elastically engage with the front side 32 is integrally formed.

The shaft portion 56 has a shaft length substantially equal to the depth of the set opening 13 and the thickness of the game board D, and the front and rear central portions thereof have a small diameter as appropriate. The locking portion 58 has a boss shape having a diameter larger than that of the shaft portion 56, and has a hexagonal operation hole 61 formed at the distal end surface thereof. It can be inserted and engaged. The operating portion 59 has a knob-like shape extending in a direction perpendicular to the axial direction of the shaft portion 56, and forms a part of the operating hole 61 at a central end face in the longitudinal direction as shown in FIG. 3 or FIG. A concave portion is formed, and the central end surface and the cylindrical surface of the locking portion 58 are connected to each other. Further, the engaging portion 60 is formed on an end surface of the operation portion 59 opposite to the end surface connected to the locking portion 58, and has an engaging projection 62 protruding toward the rotation support plate 57 at a central portion thereof. have.

(Engagement part of game board)
As shown in FIG. 5, each of the engagement receiving portions 32 of the game board D has a recessed molded portion 34 at each of the slanted corners 33 of the game board D, while a front surface of the molded portion 34 is formed. The engagement holding member 37 is attached to the second member. In the concave forming part 34, a locking seat 35 for the holding piece 43 of the holding part 40 and a relief port 36 for the shaft supporting part 44 are formed. The engagement holding member 37 is formed of, for example, a synthetic resin as a single body, and is screwed in such a manner as to be aligned with the front surface of the opening of the escape port 36. The front surface of the engagement holding member 37 guides the locking tool 55 to the engagement protrusion 62. An inclined surface 38 and an engaging recess 39 for positioning are formed. The engagement holding member 37 is attached to the engagement receiving portion 32 by fitting a pin protruding from the holding member 37 into a hole formed in the engagement receiving portion 32. You may.

In the locking device H of the present embodiment configured as described above, the locking device 55 is fixedly set to the corresponding holding portion 40 in advance so as to be rotatable. FIGS. This will be described with reference to FIG. That is, first, as shown in FIG. 7, the locking portion 58 and the operating portion 59 are directed forward, and the engaging portion 60 is positioned in the direction of the center of the setting port 13 (the side away from the shaft hole 42). Then, the shaft portion 56 is inserted into the shaft hole 46 from the insertion hole 47 of the shaft hole portion 42 and is appropriately pressed. As a result, in the initial stage, as shown in FIG. 8, the entire locking device 55 is fitted in a state of being slightly inclined with respect to the holding portion 40, and the shaft portion 56 is inserted into the insertion hole 47 and the shaft of the shaft hole 42. It is inserted obliquely into the hole 46.

Next, as shown in FIG. 9, the locking tool 55 inserted obliquely is pushed in the direction of the arrow in FIG. In this state, the rotation support plate 57 is aligned with the fitting seat portion 45, and the shaft portion 56 is inserted and supported in the shaft hole 46 of the shaft hole portion 42. The operating portion 59 is engaged with the front surface of the oblique wall portion 27 and the engaging portion 60 is directed toward the center of the setting port 13.

Then, after the completion of the full-fit setting, a finger is hooked on the operation section 59, and the locking tool 55 is rotated counterclockwise in FIG. As a result, the locking device 55 as a whole is inverted as shown in FIG. Along with this, in the process in which the engaging portion 60 is shifted to the front side of the inclined wall portion 27, the engaging protrusion 62 moves along the guide wall portion 49 and the guide inclined surface 50 of the regulating portion 48, and It is rush-locked to 51. As a result, the locking device 55 is fixedly set in a state in which the rotation thereof is stopped and the locking device 55 stands by at the unlock position.

In each locking device H, when the locking device 55 is set stationary, the engaging projection 62 of the engaging portion 60 is appropriately elastically deformed while moving on the guide slope 50. When the engagement projection 62 is released from the engagement with the guide slope 50 and enters the engagement recess 51, the positioning is stopped as an unlocked end. The lock angle range) and the unlocking end point are naturally determined. Incidentally, all the locks 55 are rotated in the same direction.

[Operation of the embodiment]
In the pachinko machine P of the present embodiment configured as described above, the mounting of the game board D on the front frame B can be easily performed by performing necessary operations on the front side of the front frame B with the glass door C opened. What you get. Therefore, a manner of attaching and detaching the game board D to and from the set port 13 and an operation procedure in attaching and detaching will be described.

(Set of locks)
In the pachinko machine P of the present embodiment, the locking devices H are respectively disposed on the oblique wall portions 27 formed on the upper and lower sides and the left and right sides of the set opening 13. Prior to the installation, the locking device 55 is fixedly set in the holding unit 40 as described above.

(Game board set)
The game board D is set in the set opening 13 of the set holding frame 12 from the window opening 11 of the frame 10 in the front frame B with both the glass door C and the upper ball tray E fully opened. As a result, the game board D is positioned with respect to the game auxiliary board 20 by the respective protruding seats 19, 19, and the locking seat 35 of each engagement receiving portion 32 and the holding piece 43 of the holding portion 40 are connected. It abuts and engages, thereby being held and held in an upright state.

Next, the locking tool 55 of each locking device H is rotated clockwise (in FIG. 9) with the fingertip hung on the operation unit 59. As a result, in each locking device 55, the locking position is inverted from the unlocking position in FIG. 9 described above to the locking position shown in FIG. 10, and the engaging portion 60 of the locking device 55 is held by the engagement receiving portion 32 of the game board D. In the process of shifting to the front side of the member 37, the engaging projection 62 moves on the guide slope 38 and finally rushes into the engaging recess 39. When the engaging projection 62 engages with the engaging concave portion 39, the rotation of the locking device 55 is stopped, and the locking device 55 is held at the locking position.

In each locking device H, when the locking device 55 is locked, the engaging projection 62 of the engaging portion 60 is appropriately elastically deformed while moving on the guide slope 38. When the engagement projection 62 is disengaged from the guide slope 38 and enters the engagement recess 39, the positioning is stopped as a locking end. The lock termination point is automatically determined.

When the locking devices 55 in all the locking devices H are held at the locking positions by the rotation operation, the game board D is fixedly held in the set opening 13 of the set holding frame 12 in an appropriate posture. In particular, in each of the locks 55, the engaging piece 43 of the game board D is engaged with the engagement holding member 37 of the game board D on the premise that the holding piece 43 of the holding section 40 and the locking seat 35 of the game board D are aligned and contact. 60 comes into contact with an appropriate elastic deformation, so that an appropriate tightening force acts on the game board D. For this reason, the game board D is always held firmly by receiving this tightening force, and is always fixed and held in a stable state against vibration, impact and the like.

(Removal of game board)
When removing the game board D, in each of the locking devices H, a fingertip is hung on the operating portion 59 of the locking device 55, and the locking device 55 is rotated counterclockwise in FIG. The engagement receiving portion 32 of the corresponding game board D is released while being inverted and held at the unlock position. When the locking devices 55 of all the locking devices H are held at the unlocking positions, the entire game board D is unlocked, and the gaming board D stands up from the set opening 13 simply by being pulled out to the front side of the operation. The pachinko machine P can be taken out as it is and can be taken out through the window frame opening 11 of the frame body 10 to the front side of the pachinko machine P.

As described above, in the locking device H for a game board according to the present embodiment, the game board D can be quickly and easily attached and detached by a simple procedure operation on the front side of the front frame B. Then, when attaching and detaching the game board D, the locking device 55 of each locking device H can perform a rotating operation by hanging a fingertip on the operation unit 59, and use a special rotating operation tool (tool). Since the game board D can be locked and unlocked without using it at all, the work of attaching and detaching the game board D can be performed very simply and quickly.

In the locking device H of the present embodiment, a corresponding turning operation tool (not shown) is engaged with the operation hole 61 formed in the locking portion 58 of the locking device 55, and the locking device H is similar to the conventional locking device. The game board D can be locked or unlocked by rotating the locking device 55 with the rotating operation device.

Further, the pachinko gaming machine in which the locking device for a game board according to the present invention can be implemented is limited to the pachinko machine of the form shown in the above embodiment, that is, the pachinko machine in which the set holding frame 12 is integrally formed with the front frame B. Instead, the set holding frame 12 may be formed of a synthetic resin separately from the front frame B and may be attached to the front frame B later. Further, the locking device 55 is not limited to the shape illustrated in the above embodiment.

1 is a front view schematically showing a pachinko machine in which a gaming machine locking device according to the present invention is implemented. It is a front view of the front frame which comprises the pachinko machine of FIG. It is the perspective view which looked at the holding part and locking implement which comprise the locking device of a present Example from the front side. It is the perspective view which looked at the holding part and locking implement which comprise the locking device of this example from the back. It is the perspective view which looked at the engagement receiving part of the game board from the front side. It is a rear view which shows a locking tool in partially broken. FIG. 9 is a front view illustrating an assembling mode of the locking device to the holding unit, and shows a state before the locking device is assembled to the holding unit. FIG. 5 is a plan cross-sectional view illustrating an assembling mode of the locking tool to the holding unit, and shows a state where the locking tool is temporarily fitted to the holding unit and set. FIG. 9 is a front view illustrating an assembling mode of the locking device with respect to the holding unit, and shows a state where the locking device set in the holding unit is held at the unlocking position. It is a front view which shows the locked state of the game board by a locking tool. It is a plane sectional view showing the locked state of the game board by the locking device.

Explanation of reference numerals

11 Window sill (window)
12 Set holding frame 13 Set opening 32 Engagement receiving part (engagement part)
DESCRIPTION OF SYMBOLS 40 Holding part 41 Locking part 42 Shaft hole mouth part 55 Locking tool 56 Shaft part 57 Rotating support plate 58 Locking part 59 Operation part 60 Engaging part 61 Operation hole 62 Engagement projection A Outer frame B Front frame D Game board

Claims (2)

For the set opening of the set holding frame located behind the window of the front frame attached to the outer frame, there is a pachinko gaming machine in which the gaming board is set to be detachable and replaceable from the front side,
A holding portion provided at a predetermined position facing the inner periphery of the set opening established in the set holding frame, and a locking tool that is removably fitted to the holding portion and is rotatably supported.
In the holding portion, an engaging portion and an axial hole opening portion capable of engaging the back side of the engaging portion of the game board set in the set opening are formed,
In the locking device, a rotation support plate supported by the locking portion is integrally formed on a rear side of a shaft portion rotatably fitted and supported in a shaft hole of the holding portion. A boss-shaped locking portion that can be locked to the front side of the holding portion and has a hexagonal operation hole formed at the distal end surface, and an operation that can be rotated by a fingertip. Part, and an engaging portion capable of elastically engaging with the engaging portion front side of the game board are integrally formed,
The operating portion has a knob-like shape extending in a direction perpendicular to the axial direction of the shaft portion, and a central end surface in a longitudinal direction thereof and a cylindrical surface of the boss-shaped locking portion are continuously provided,
The engagement portion is formed on an end surface of the operation portion opposite to an end surface connected to the locking portion, and has an engagement protrusion protruding toward the rotation support plate at a central portion thereof. A locking device for a game board in a pachinko game machine. For the set opening of the set holding frame located behind the window of the front frame attached to the outer frame, there is a pachinko gaming machine in which the gaming board is set to be detachable and replaceable from the front side,
A holding portion provided at a predetermined position facing the inner periphery of the set opening established in the set holding frame, and a locking tool that is removably fitted to the holding portion and is rotatably supported.
In the holding portion, an engaging portion and an axial hole opening portion capable of engaging the back side of the engaging portion of the game board set in the set opening are formed,
In the locking device, a rotating support plate supported by the locking portion is integrally formed on a rear side of a shaft portion rotatably fitted and supported in a shaft hole of the holding portion. A boss-shaped locking portion that can be locked to the front side of the holding portion and has a hexagonal operation hole formed at the distal end surface, and an operation that can be rotated by a fingertip. Part, and an engaging portion capable of elastically engaging with the engaging portion front side of the game board are integrally formed,
The operating portion has a knob-like shape extending in a direction orthogonal to the axial direction of the shaft portion, and a concave portion forming a part of the operating hole is formed in a central end surface in a longitudinal direction thereof, and the central end surface and the locking portion are formed. A locking device for a game board in a pachinko game machine, wherein a cylindrical surface of the portion is continuously provided.

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