JP2002143496A - Pinball game machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily close the front frame over the outer frame, to prevent an engage supporting member with which an engage part to ride on a guide supporting part provided on the outer frame, from being bent or deformed when closing the front frame and to prevent a function for holding up the opening/closing side of the front frame from being lowered. SOLUTION: Bead parts 57 and 58 are respective formed on a portion easily to be bent by action of bending force, of an engage supporting member 43 integrally formed on the lower terminal part of a supporting wall part 41b of a link attaching frame 41, and rigidity to the bending force is enhanced. Thus, in the case of opening a front frame 4 by forward pulling the opening/ closing side thereof, even when the bending force is exerted upon the engage supporting member 43, since rigidity is enhanced by these bead parts 57 and 58, the engage supporting member 43 can be surely prevented from being bent or deformed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ball game machine having a front frame rotatably connected to an outer frame, and more particularly to a guide support provided on the outer frame when the front frame is closed. The present invention relates to a structure in which an engaging portion of an engaging support member provided is climbed on, and an opening / closing side opposite to a hinge side of a front frame is lifted.

[0002]

2. Description of the Related Art Conventionally, a pachinko machine, which is a card-type ball game machine, has a rectangular frame-shaped outer frame detachably mounted on an island structure, and is pivotally attached to the left end of the outer frame so as to be freely opened and closed. And a front frame. Since a glass door is pivotally supported on the front frame so as to be openable and closable, a locking mechanism for locking the front frame and the glass door to the outer frame is provided at the right end of the rear surface of the front frame during a ball game. The locking mechanism will be briefly described. A rearwardly-facing hook member pivotally moves vertically at the upper end and the lower end of the support wall of the link mounting frame formed into an L-shaped section extending in the vertical direction. The upper end and the lower end of the connection link that is supported and extends in the vertical direction are rotatably connected to the base end of the corresponding hook member, respectively.

[0003] A cylinder lock is provided at a middle portion in a height direction of a mounting wall portion of a link mounting frame, and an engaging cam plate which can be engaged with a connection link is fixed to a tip end of a cylinder body of the cylinder lock. ing. In this case, in a state where the front frame and the glass door are locked to the outer frame via the locking mechanism,
Rotate the cylinder lock counterclockwise with the unlock key,
The front frame can be unlocked and opened. Further, the glass lock can be unlocked and opened by rotating the cylinder lock clockwise with the unlock key.

On the front frame, a plurality of board cases and a game board for accommodating a control board for a ball game are attached, and a number of members such as a back mechanism plate, a payout device, a firing means, etc. Parts are installed. Therefore, when the front frame is opened to the front, the opening / closing side provided with the locking mechanism at the right end of the front frame is lowered with respect to the hinge side of the front frame under the load of many members and electric components. Therefore, when the unlocked front frame is pushed toward the outer frame and closed, the open / close side of the front frame is lifted to a predetermined height so that the front frame can be smoothly pushed into the outer frame.

For example, as shown in FIG. 15, a lower end of a support wall 141b of a frame 141 for attaching a link is
An engagement support member 143 projecting rearward is integrally formed, and a base end of the hook member 145 is pivotally attached to the hook attachment portion 143a of the engagement support member 143 so as to be vertically swingable. Is integrally formed with a support portion 143b that projects further rearward.
A disk-shaped roller 154 is rotatably mounted on 3b. By the way, inside the outer frame 103, a hook member 1 is provided.
45 engaging member 153 capable of engaging with the engaging concave portion 145a
And a guide supporter 159 for supporting the roller 154 from below.
Are integrally fixed.

When the front frame 104 is opened, the front frame 104 is unlocked by a locking mechanism, and when the open / close side of the front frame 104 is opened forward, the roller 154 moves forward on the guide support 159. The front frame 104 can be widely opened after the opening and closing side is lower than the hinge side. When the front frame 104 is closed while pushing the open / close side of the front frame 104 backward, the roller 154 is driven by the guide plate 1 of the guide support portion 159.
By climbing on the support plate portion 159b via 59a, the open / close side of the front frame 104 is lifted to a predetermined height, and the lower end of the open / close side of the front frame 104 is removed without contacting the outer frame 103. The frame 103 can be closed.

[0007]

As described above, when the front frame 104 is opened, as shown in FIG. 14 according to the embodiment, the open / close side 4A of the front frame 4 is moved forward as shown by a two-dot chain line. pull. At this time, since the roller 54 rides on the guide support portion 59 under the load of a large number of members and electric components, the engagement support member 43 fixed to the front frame 4 is indicated by an arrow F in FIG. With a large reaction force acting,
When moving the guide support 59 forward, the rollers 54
Is about to move forward in the direction A perpendicular to the frame surface 4a of the front frame 4, and the opening angle α of the support wall 41b with respect to the mounting wall 41a is about 90 °.

However, as the front frame 4 is opened, the front frame 4
Of the engagement support member 43 with respect to the mounting wall portion 41a becomes larger than 90 °, since the frame surface 4a rotates clockwise in plan view around the pivot shaft 39. It turns to the direction B. In this case, since a large upward reaction force acts on the engagement support member 43,
A leftward bending force parallel to the frame surface 4a of the front frame 4 acts. Therefore, as shown by the direction B in FIG. 16, the engagement support member 43 bends toward the center in the width direction of the pachinko machine (hereinafter referred to as width inward) with respect to the normal direction A.

In particular, hook mounting portions 1 having different height dimensions
There is a problem that, in a boundary portion between the support 43a and the support portion 143b, a bend inward in the width direction is generated, and a boundary between the support wall portion 141b and the hook attachment portion 143a is also bent inward in the width direction. Further, when the opening / closing operation of the front frame 104 is repeatedly performed and the degree of bending or inward bending of the engagement support member 143 in the width direction increases,
4 itself becomes inclined outward, and there is a problem that the lifting function of the front frame 104 is reduced.

SUMMARY OF THE INVENTION It is an object of the present invention to enable the front frame to be easily closed to the outer frame, and to support an engaging portion which rides on a guide support provided on the outer frame when the front frame is closed. That is, the support member can be prevented from being bent or deformed, and the lowering function of the front frame on the open / close side can be prevented from being reduced.

[0011]

According to a first aspect of the present invention, there is provided a ball-and-ball game machine including a rectangular frame-shaped outer frame, and a front frame pivotally attached to the outer frame so as to be rotatable around a vertical axis. In ball and ball machines,
A locking mechanism that is mounted on the front frame and locks the front frame and the glass door pivotally attached to the front frame to the outer frame at a closed position;
An engagement support member integrally formed on a link mounting frame of the locking mechanism and provided on a predetermined portion of the outer frame, the engagement support member supporting an engagement portion that rides on the guide support when the front frame is closed; A bead portion is formed on at least a part of the support member.

The front frame is pivotally attached to the outer frame so as to be rotatable around a vertical axis, and the glass door is pivotally attached to the front frame so as to be openable and closable. It can be moved and locked by a locking mechanism provided on the front frame. By the way, in the front frame, a plurality of board cases and game boards for accommodating control boards for ball games are attached,
Since a large number of members and electrical components such as a back mechanism plate, a dispensing device, a firing means, and the like are attached, when the front frame is opened to the front with respect to the outer frame, the opening and closing side provided with a locking mechanism of the front frame, Under the load of a large number of members and electric components, it is lowered with respect to the hinge side of the front frame.

Therefore, as a predetermined portion of the outer frame, for example,
A guide supporting portion is provided at a portion corresponding to a portion near a lower end of the front frame, which is separated from a vertical axis at which the front frame is pivotally pivotally attached, and is integrally formed on a link mounting frame of the locking mechanism. Since the engaging portion is supported by the support member, when closing the front frame, the engaging portion rides on the guide support portion,
The open / close side of the front frame can be raised to a predetermined height, and the front frame can be closed and locked by a locking mechanism. By the way, when the front frame is opened, the roller moves the guide support portion forward while receiving the load from the front frame, so that as the front frame is opened, the direction of the engagement support member and the frame surface of the front frame are changed. The opening angle increases, and a bending force acts on the engagement support member.

However, since the bead portion is formed on at least a part of the engagement support member, the rigidity against the bending force can be increased, and when the open / close side of the front frame is pulled forward and opened, the engagement support member is provided with the bead portion. Even when a bending force is applied, bending and deformation of the engagement support member can be reliably prevented because the rigidity is increased by the bead portion. Therefore, it is possible to prevent a decrease in the lifting function on the opening and closing sides of the front frame.

Here, when the engaging portion comprises a disk-shaped roller (claim 2), when opening and closing the front frame,
Since the disk-shaped roller moves while rolling on the guide support, the opening and closing operation of the front frame can be facilitated.

Further, the guide support portion has a substantially horizontal support plate portion and a guide plate portion formed integrally with the support plate portion and inclined forward and downward to guide the engaging portion. When closing the front frame, the roller can gradually lift the open / close side of the front frame by gradually climbing the inclined guide plate portion, and furthermore, with the support plate portion integrally formed with the guide plate portion, The open / close side of the front frame can be maintained at a predetermined height.

The bead portion is formed in a horizontal direction or a direction inclined at a predetermined angle with respect to the horizontal direction so as to increase rigidity of the engagement support member in a direction parallel to the frame surface of the front frame. In this case (claim 4), the rigidity of the engaging support member in the direction parallel to the frame surface of the front frame is efficiently reduced by the horizontal direction of the bead portion or the direction inclined at a predetermined angle with respect to the horizontal direction. Can be enhanced well.

[0018]

Embodiments of the present invention will be described below with reference to the drawings. The present embodiment is an example in which the present invention is applied to a first-class pachinko machine called a card-type ball game machine installed in an island structure of a pachinko hall, and an island structure provided in a pachinko hall. , A plurality of card-type ball lending machines 1 and a plurality of pachinko machines 2 are alternately arranged in the length direction, and the card-type ball lending machine 1 is electrically connected to the pachinko machine 2.

As shown in FIG. 1, a pachinko machine 2 which is a card type ball game machine has a rectangular frame-shaped outer frame 3 and an outer frame 3.
And a front frame (corresponding to an inner frame) 4 pivotally attached to the outer frame 3 in an island structure (not shown) while the card-type ball lending machine 1 is sandwiched therebetween. It is attached detachably. A game board 5 is detachably attached to the front frame 4 from the back side, and a glass door 6 having a window 6a and a front plate of a ball tray (upper plate) 8 (not shown) are provided corresponding to the front side of the game board 5. ) Are pivotally attached to each other so as to be freely opened and closed. Below the front frame 4 are provided a lower plate 9 for storing game balls overflowing or withdrawn from the ball tray 8, and a firing handle 11 of the firing means 10.

The launching means 10 includes a launch handle 11 that can be rotated and a launch motor 13 that launches a game ball with a hitting hammer 12 with a hitting force corresponding to the turning angle of the launch handle 11. On the right side of the ball tray 8, an operation panel 14 for ball lending operation for the card-type ball lending machine 1 is provided.
The operation panel 14 has a card balance of 3
A card balance display portion 14a for displaying a digit number, and a ball lending switch 14b for instructing lending of a predetermined amount of game balls.
And a return switch 14c for instructing return of the card at the end of the game.

Here, although the game board 5 is not shown, a color liquid crystal display as a symbol display means, a symbol starting means as an electric tulip, an open / close prize are provided in a game area inside a metal guide rail. Means (Big Winning Means) A plurality of normal winning means, gates (passage openings) and the like are arranged at predetermined positions. As shown in FIGS.
The back mechanism plate 16 for holding the game board 5 from the back side
The back mechanism plate 16 has an opening 1
6a is formed, and a ball tank 17 and a tank rail 18 extending therefrom are provided on the upper side thereof. Discharge means 19 connected to this tank rail 18 is provided on the left side of the back mechanism plate 16.

A payout means 19 is provided below the back mechanism plate 16.
Is provided with a passage unit 20. The game balls paid out from the payout means 19 are paid out to the ball tray 8 via the passage unit 20. The opening 16 a of the back mechanism plate 16 has a back cover 2 attached to the back side of the game board 5.
1 and a winning ball discharge gutter (not shown) for discharging a game ball that has won a winning means are fitted respectively. This back cover 2
As shown in FIGS. 2 to 4, reference numeral 1 denotes a liquid crystal display functioning as a symbol display means, a symbol control board 22 disposed immediately behind the liquid crystal display, and a drive section of a symbol starting means and an open / close prize means. , A plurality of decorative lamps and the like are covered from the back side.

In a substantially upper half of the rear wall of the back cover 21,
A lamp board case 24 containing a lamp control board 23 is detachably attached to the right end thereof, and a sound board case 26 containing a sound control board 25 is detachably attached to the left end. Have been. Further, between the left and right substrate cases 24 and 26 on the rear wall of the back cover 21, a mere protective cover 27 having no substrate is detachably attached. Back cover 2
A main control board case 29 containing a main control board 28 is detachably attached to a substantially lower half of the rear wall portion 1.

Two board cases 31 and 33 are mounted on a left and right mounting base 30 mounted on the back mechanism plate 16 below the board case 29, and the payout control board 32 is housed in the board case 31. The power supply board 34 is accommodated in the board case 33. Further, a firing motor 13 is fixed to the lower end of the front frame 4 corresponding to the rear side of the firing means 10,
A firing control board 36 is accommodated in a firing board case 35 mounted on the rear end of the firing motor 13. That is, the control boards 22, 23, 25, 28, 32, 3
Reference numerals 4 and 36 each include a printed circuit board provided individually.

The power supply board 34 and the emission control board 36
The control boards 22, 23, 25, 28 and 32 except for
Microcomputers each comprising a chip integrated circuit are provided. Main control board 28 and other control boards 2
2, 23, 25, and 32 are electrically connected to each other through connectors using a plurality of signal lines, and cause the main control board 28 to cause each of the control boards 22, 23, 25, and 32 to execute a predetermined game operation. Various control commands can be transmitted by one-way communication.

Next, the locking mechanism 40 provided on the front frame 4 will be described. As shown in FIGS. 1 and 4 to 10, the front frame 4 has, at its left end, a pivot bracket 37 (shown only on the upper side) fixed to the outer frame 3 and a pivot bracket fixed above and below the front frame 4. A lock mechanism 40 shown in FIG. 4 is provided on the rear surface side of the right end of the front frame 4 so as to be rotatable about a vertical axis through a pivot shaft 39 via the shaft 38. ing. On the rear surface of the right end of the front frame 4, a vertically long link mounting frame 41 having an L-shaped cross section having a mounting wall portion 41 a and a support wall portion 41 b is provided in a vertical direction. A mounting wall 41 parallel to the front frame 4
The screw is fixed to the front frame 4 by a.

A hook mounting member 42 integrally formed at the upper end of a rearward-facing support wall 41b of the link mounting frame 41, and an engaging support member 43 integrally formed at the lower end.
The base ends of the hook members 4 and 5 oriented in the front-rear direction are pivotally supported by pivot pins 44b and 45b, respectively, so as to be able to swing up and down with the hook mounting portion 43a provided at the bottom. The hook members 44 and 45 are provided on the substantially upper half of the base of the triangular head.
4a, 45a, and the locking recesses 44a,
45a engages with later-described engaging members 52 and 53. The connection link 46 disposed in the vertical direction in parallel with the support wall 41b is connected to the base end of the hook member 44 by a connection pin 44c at the upper end thereof, and is hooked by the connection pin 45c at the lower end thereof. It is connected to the base end of the member 45.

The vertical middle portion of the mounting wall portion 41a is formed wide, and a cylinder lock 47 is mounted on the middle portion. A flange 47a is provided at the base of the cylinder lock 47.
Is formed, and a fixing hole is formed in the flange 47a. A screw hole is provided on the mounting wall portion 41a corresponding to the fixing hole, the cylinder lock 47 is inserted into the cylinder insertion hole from the front side of the link mounting frame 41, and the fixing screw is inserted into the fixing hole of the flange 47a from the front side. The cylinder lock 47 is fixed by screwing. Therefore, cylinder lock 47
The lock shaft 47b appears inside the link mounting frame 41, and the cam plate 48 is fixed to the lock shaft 47b.

The cam plate 48 has a first engaging portion 48a and a second engaging portion 48b. When the cam plate 48 rotates counterclockwise in FIG. 6, the first engaging portion 48a is connected. Engaging with an engaging concave portion (not shown) provided in the intermediate portion of the link 46, the connecting link 46 is slid upward, and the hook members 44 and 45 are simultaneously rotated. When the cam plate 48 rotates clockwise in FIG. 6, the second engagement portion 48b is an unlocking operation rod for a glass door that is slidably disposed between the connection link 46 and the support wall 41b. The unlocking member 49b of the glass door locking device is unlocked by engaging with and sliding downward with 49. The connection link 46 is always elastically urged upward by the coil spring 50.
Further, the unlocking operation rod 49 for the glass door is always elastically urged upward by the coil spring 51.

A part of the unlocking operation rod 49 for the glass door is provided with an operating piece 49a projecting outward from the support wall portion 41b in order to unlock the unlocking member 49b of the glass door locking device. I have. By the way, an engaging member 52 that can be engaged with the engaging concave portion 44a of the upper hook member 44 is fixed inside the outer frame 3 corresponding to the hook members 44 and 45 of the locking mechanism 40, and the lower An engaging member 53 engageable with the engaging concave portion 45a of the hook member 45 is fixed.

At the time of locking, when the right end 4A of the front frame 4 is closed to the closed position (see FIGS. 1 and 14) while being pressed backward,
The triangular heads of the hook members 44, 45 are
3 and swings downward while contacting the lower end of the coil spring 50.
Finally, the engaging members 52 and 53 are locked in the engaging concave portions 44a and 45a. When unlocking the front frame 4, the cylinder lock 47 is turned by a key and the cam plate 48 is unlocked.
When the counterclockwise rotation of FIG.
The engaging portion 48a engages with the connecting link 46 and slides it upward, and the upper and lower hook members 44 and 45 swing downward.

The swing of the hook members 44 and 45 disengages the engagement recesses 44a and 45a from the engagement members 52 and 53, and the front frame 4 can be opened forward. On the other hand, when the cam plate 48 is rotated clockwise in FIG. 6 by a key operation, the second engaging portion 48b of the cam plate 48 engages with the unlocking operation rod 49 for the glass door and moves this downward. Then, the operating piece 49a operates the unlocking member 49b of the glass door locking device to unlock the glass door 6.

The engaging support member 43 is provided with a support portion 43b extending rearward of the hook mounting portion 43a and having a height approximately half the height of the hook mounting portion 43a. The disk-shaped roller 54 (which corresponds to an engaging portion) is pivotally mounted on the support portion 43b by shifting it to the left by the thickness of the plate 43a, that is, by forming a linear step portion in the vertical direction. It is rotatably supported by a support pin 55. As shown in FIG. 11, the engagement support member 43 has an oval shape that is inclined rearward downward and convex to the left over the vicinity of the lower end of the support wall portion 41 b and the hook attachment portion 43 a. A bead portion 57 is formed.

Further, in the vicinity of the lower end on the rear end side of the hook attachment portion 43a, the support portion 43b is flush with the support portion 43b.
An oblong bead portion 58 is formed which is inclined downward and convex to the left. These two bead sections 5
7, 58, the frame surface 4a of the front frame 4 of the engagement support member 43
The rigidity with respect to the bending force in the direction parallel to the direction is increased. A guide support portion 59 is formed integrally with the lower engagement member 53 below the lower engagement member 53. The guide support 59
Has a guide plate portion 59a inclined forward and downward so as to lift the roller 54 smoothly, and a substantially horizontal support plate portion 59b extending behind the guide plate portion 59a.

Although the front frame 4 is rotatably attached to the outer frame 3 at the hinge side at the left end thereof via pivot brackets 37, 38 and a pivot shaft 39, the front frame 4 is not pivotably mounted. The frame 4 includes a plurality of board cases 24, 26, 29, 31, 33,
35 and the game board 5 are attached, and the back mechanism plate 1
6. A large number of members and electric components such as the dispensing device 19 and the firing means 10 are attached. Therefore, when the front frame 4 is opened to the front with respect to the outer frame 3, the right end of the front frame 4, that is, the opening / closing side 4 </ b> A provided with the locking mechanism 40 receives loads of many members and electric components, It descends to the hinge side of the left end.

Therefore, when the front frame 4 is closed while pressing the opening / closing side 4A backward in locking, the opening / closing side of the front frame 4 is closed so that the lower end of the opening / closing side 4A of the front frame 4 does not contact the outer frame 3. It is necessary to lift 4A upward. Therefore, when the front frame 4 is closed, the roller 54 rides on the support plate portion 59b via the guide plate portion 59a, so that the open / close side 4A of the front frame 4 is raised to a predetermined height.

Next, the pachinko machine 2 constructed as above will be described.
The operation of opening and closing the front frame 4 with respect to the inside of the outer frame 3 will be described with reference to FIGS. As described above, the cam plate 48 is rotated counterclockwise in FIG. 6 by the key to swing the upper and lower hook members 44 and 45 downward, thereby unlocking the front frame 4 and opening the front frame 4 forward. I do. And
As shown in FIG. 14, the open / close side 4A of the front frame 4 is pulled forward as shown by a two-dot chain line. At this time, since the roller 54 receives loads of a large number of members and electric components, the guide support portion 59 is applied to the engagement support member 43 while a large reaction force indicated by an arrow F in FIG. Moves forward.

At this time, the disk-shaped roller 54 tries to move forward in the direction A orthogonal to the frame surface 4a of the front frame 4. At this time, the opening angle α of the support wall 41b with respect to the mounting wall 41a of the link mounting frame 41 is about 90 °. However, as the front frame 4 is opened, the frame surface 4a of the front frame 4 rotates clockwise about the pivot shaft 39 as a rotation center in a plan view.
The opening angle α with respect to “a” is larger than 90 °, and the engagement support member 43 is oriented in the direction B. in this case,
Since a large upward reaction force F acts on the engagement support member 43, a leftward bending force parallel to the frame surface 4 a of the front frame 4 acts.

Therefore, the supporting portion 43b is connected to the hook attaching portion 4
At the boundary with 3a, the pachinko machine 2 is likely to bend toward the center in the width direction (hereinafter referred to as the inside in the width direction). here,
A hole 41c for avoiding the connecting pin 45c for connecting the hook member 45 to the connecting link 46 is formed in the hook attaching portion 43a, and the plate area of the hook attaching portion 43a is reduced. The attachment portion 43a is easily bent inward in the width direction even at the boundary with the support wall portion 41b. However, the engagement support member 43 is formed with two bead portions 57 and 58 inclined downward and rearward.

Therefore, the support portion 43b is formed by the bead portion 58.
The rigidity of the hook mounting portion 43a to the left is increased with respect to the hook mounting portion 43a.
The rigidity of “a” to the left with respect to the support wall portion 41b is increased. Then, when the roller 54 slides down the inclined guide plate portion 59a and does not come into contact with the guide support portion 59, and the bending force on the engagement support member 43 to the left is released, the engagement support member 43 Beads 57,
Due to the rigidity increase by 58, the shape can be easily returned to the original shape, and the bending and deformation of the engagement support member 43 inward in the width direction due to the bending force can be reliably prevented.

When the front frame 4 is closed, the roller 54 climbs the inclined guide plate portion 59a so that the front frame 4 is closed.
The upper and lower sides 4A of the front frame 4 are lifted upward to a predetermined height such that the lower end does not contact the outer frame 3, and the rollers 54 move the support plate portion 59b backward.
Is lifted to a predetermined height and then held at that height.

Then, with the front frame 4 maintaining its height, the engaging members 52 and 53 are locked in the engaging concave portions 44a and 45a of the hook members 44 and 45, as described above. Is locked to the outer frame 3. As described above, the bead portions 57 and 58 are respectively formed at the portions that are easily bent by the action of the bending force of the engagement support member 43 integrally formed at the lower end portion of the support wall portion 41b of the link mounting frame 41, and the bending force is formed. When the opening / closing side 4A of the front frame 4 is pulled forward and opened, even if a bending force acts on the engagement support member 43, the rigidity of the beads 57 and 58 increases. Bending and deformation of the joint support member 43 can be reliably prevented.

Also, since the disk-shaped roller 54 is rotatably supported by the support portion 43b of the engagement support member 43, the disk-shaped roller 54 rolls the guide support portion 59 when the front frame 4 is opened and closed. While moving, the opening and closing operation of the front frame 4 can be facilitated.

Further, since the guide support portion 59 has a substantially horizontal support plate portion 59b and a guide plate portion 59a which is formed integrally with the support plate portion 59b and is inclined forward and downward, the front frame 4
When the roller is closed, the guide plate portion 59a in which the roller 54 is inclined
, The open / close side 4A of the front frame 4 can be easily lifted, and the open / close side 4A of the front frame 4 can be raised to a predetermined height by the support plate 59b formed integrally with the guide plate 59a. Can be maintained.

A description will be given of a modified form in which the embodiment is partially modified. 1] Two beads 57, 5 formed on the engagement support member 43
Each of the beads 8 may be oriented in the horizontal direction, and one large bead formed by integrating these two beads may be oriented in the horizontal direction or in a direction inclined at a predetermined angle with respect to the horizontal direction. . 2] The engagement support member 43 may be provided with a simple engagement portion instead of the disk-shaped roller.

3) A single groove for guiding the roller 54 may be formed in the guide support portion 59 so as to prevent the support portion 43b and the hook mounting portion 43a from being bent. 4) The present invention can also be applied to a ball game machine in which a game board is mounted on a front frame pivotally attached to an outer frame so as to be freely opened and closed, and a back mechanism plate does not exist. 5) The present invention is not limited to the above-described embodiments and modifications, and various modifications may be made without departing from the spirit of the present invention. The present invention can be applied to various ball and ball game machines such as ball machines.

[0047]

According to the first aspect of the present invention, there is provided a rectangular frame-shaped outer frame, and a front frame rotatably mounted on the outer frame so as to be rotatable around a vertical axis. Since the support portion and the engagement support member are provided and a bead portion is formed on at least a part of the engagement support member, when the front frame is opened, the roller is supported by a guide while receiving a load from the front frame. As the front frame is opened, the opening angle between the direction of the engaging support member and the frame surface of the front frame increases, and even if a bending force acts on the engaging support member, the bead portion moves the front frame. Due to the increase in rigidity, bending and deformation of the engagement support member can be reliably prevented. Therefore, it is possible to prevent a decrease in the lifting function on the opening and closing sides of the front frame.

According to the second aspect of the present invention, since the engaging portion is formed of a disk-shaped roller, when the front frame is opened and closed,
Since the disk-shaped roller moves while rolling on the guide support, the opening and closing operation of the front frame can be facilitated.
The other effects are the same as those of the first aspect.

According to the third aspect of the present invention, the guide support portion includes a substantially horizontal support plate portion and a guide plate portion formed integrally with the support plate portion and inclined forward and downward to guide the engagement portion. Therefore, when closing the front frame, the roller can gradually lift the inclined guide plate portion so that the open / close side of the front frame can be easily lifted, and furthermore, by the support plate portion integrally formed with the guide plate portion, The open / close side of the front frame can be maintained at a predetermined height. The other effects are the same as those of the first or second aspect.

According to the fourth aspect of the present invention, the bead portion is oriented in the horizontal direction or at a predetermined angle with respect to the horizontal direction so as to increase the rigidity of the engagement support member in the direction parallel to the frame surface of the front frame. Since it is formed in the inclined direction, the rigidity of the engagement support member in the direction parallel to the frame surface of the front frame by the horizontal direction of the bead portion or the direction inclined at a predetermined angle with respect to the horizontal direction can be efficiently reduced. Can be enhanced well. Other effects similar to those of any one of the first to third aspects are exhibited.

[Brief description of the drawings]

FIG. 1 is a perspective view of a pachinko machine (ball game machine) according to an embodiment of the present invention.

FIG. 2 is a rear view of the pachinko machine.

FIG. 3 is a side view of the pachinko machine.

FIG. 4 is a perspective view of a locking mechanism mounted on a front frame.

FIG. 5 is a front view of the locking device.

FIG. 6 is a rear view of the locking device.

FIG. 7 is a right side view of the locking device.

FIG. 8 is a left side view of the locking device.

FIG. 9 is a diagram corresponding to FIG. 8 when the front frame is at a closed position.

FIG. 10 is a partially enlarged perspective view of a lower end portion of the locking device.

FIG. 11 is a right side view of a lower end portion of the link mounting frame.

FIG. 12 is a sectional view taken along line LL in FIG. 11;

FIG. 13 is a sectional view taken along line MM in FIG. 11;

FIG. 14 is a partially cutaway plan view of the pachinko machine.

FIG. 15 is a diagram corresponding to FIG. 10 according to the related art.

FIG. 16 is a diagram corresponding to FIG. 10, showing a deformed state of an engagement support member according to the related art.

[Explanation of symbols]

 2 Pachinko machine (ball game machine) 3 Outer frame 4 Front frame 4a Frame surface 6 Glass door 40 Locking mechanism 41 Link mounting frame 43 Engagement support member 54 Disk-shaped roller 57 Bead portion 58 Bead portion 59 Guide support portion 59a Guidance Plate 59b Support plate

Claims (4)

[Claims] 1. A ball game machine comprising a rectangular frame-shaped outer frame (3) and a front frame (4) pivotally connected to the outer frame (3) so as to be rotatable around a vertical axis. The front frame (4) is mounted on the front frame (4), and the front frame (4) and the glass door (6) pivotally attached to the front frame (4) are opened and closed in the closed position.
(3) a locking mechanism (40), and a guide support (59) provided at a predetermined portion of the outer frame (3).
An engagement support formed integrally with the link mounting frame (41) of the locking mechanism (40) and supporting an engagement portion (54) that rides on the guide support portion (59) when the front frame (4) is closed. Member (43), at least a part of the engagement support member (43), a bead portion (57,
58) A ball-and-ball game machine characterized by forming. 2. The ball game machine according to claim 1, wherein said engaging portion comprises a disk-shaped roller. 3. The guide support portion (59) is formed integrally with the substantially horizontal support plate portion (59b) and inclined downwardly forward to guide the engagement portion (54). Guide plate (59a)
The ball game machine according to claim 1, comprising: 4. The bead portions (57, 58) are oriented in a horizontal direction or in a horizontal direction so as to increase rigidity in a direction parallel to a frame surface (4a) of a front frame (4) of the engagement support member (43). The ball game machine according to any one of claims 1 to 3, wherein the ball game machine is formed in a direction inclined at a predetermined angle with respect to a horizontal direction.