JPH11137806A - Pachinko machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve efficiency of attaching/detaching the front frame of a pachinko machine. SOLUTION: The front frame 22 and the main body frame 12 of this pachinko machine 10 are connected with hinge mechanisms 50a, 50b, 52a, and 52b. Since the hinge mechanisms 50a and 50b are released by a key inserted into a keyhole 30, and the hinge mechanisms 52c and 52d are released by a key inserted into a keyhole 28, the front frame 22 can be opened either to the right or to the left. In addition, the front frame 22 can be attached to the main body frame 12 easily only by pressing the front frame 22 against the main body frame 12 with the rear side of the front frame 22 being opposite to the main body frame 12. Therefore, since the front frame 22 can be attached to the main body frame 12 with only one action of parallel moving of the front frame 22 like this, the work efficiency will be improved and the work load on a worker can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of a ball game machine represented by a pachinko machine and an arrangement ball type pachinko machine, and more particularly to a mechanism for opening and closing the front side thereof.

[0002]

2. Description of the Related Art A conventional ball-and-ball game machine has a pair of upper and lower hinge shafts arranged along a left side of a main body frame.
By inserting the hinge shaft into a hinge bearing provided on the front frame, the front frame is attached to the main body frame, and the front frame can be opened and closed about the hinge shaft.

When the front frame is attached to the main body frame (the hinge shaft is inserted into the hinge bearing), the front frame is first pushed up while the upper hinge shaft is inserted into the corresponding hinge bearing, thereby lowering the lower hinge shaft. A gap is secured between the lower frame and the lower edge of the front frame (so that the lower hinge axis does not interfere with the lower edge of the front frame). The hinge bearing is placed directly above the hinge shaft, and then the front frame is lowered to insert the lower hinge shaft through the hinge bearing.

[0004] In some ball game machines, the lower hinge shaft is connected to the hinge bearing simply by opening a part of the lower hinge bearing and pressing the lower part of the front frame against the main body frame. A structure that can be inserted was also adopted.

[0005]

However, in the prior art, the upper hinge shaft is inserted through the upper hinge bearing until the operation of inserting the lower hinge shaft through the hinge bearing is completed. It was necessary to press the upper edge of the front frame against the base of the hinge shaft (that is, lift the front frame). Also, when removing the front frame for maintenance of the ball-and-ball game machine, it is necessary to lift the front frame in the same manner.

By the way, since most of the internal structure of the ball-and-ball game machine is mounted on the rear side of the front frame, the weight of the entire front frame is large, and it is difficult to lift the front frame as described above. there were. Further, two operations of lifting and pressing the front frame were required, and the work efficiency was low.

SUMMARY OF THE INVENTION It is an object of the present invention to reduce the burden on an operator when mounting or removing a front frame in a ball and ball game machine, and to improve the work efficiency.

[0008]

According to the first aspect of the present invention, there is provided a ball game machine having a front side frame disposed on a front side and opened and closed with respect to a main body side. In a ball-and-ball game machine, upper and lower hinge shafts fixed to the main body side facing each other along the up-down direction of the ball-and-ball game machine, and an end on the main body side with a width that allows the hinge shaft to be inserted. The other end is a closed end at the open end, a shaft insertion groove provided in the front side frame body corresponding to each of the upper and lower hinge shafts, and disposed corresponding to each of the shaft insertion grooves, The hinge shaft inserted into the closed end side of the shaft insertion groove is displaced between a restrained position for preventing the hinge shaft from moving toward the open end side and a released position for allowing the inserted hinge shaft to move toward the open end side. It is possible to be urged to the restraining position side by an urging member, and from the open end When the hinge shaft is relatively moved toward the chain end, the hinge shaft is pressed by the hinge shaft to displace to the release position side against the urging force of the urging means to allow passage of the hinge shaft. A regulating member.

The upper and lower hinge axes are opposed to each other, for example, along the left side of the ball game machine, one is downward from the upper side of the main body side (for example, the main body frame), and the other is upward from the lower side.
It is fixed to the main unit. The axes of these upper and lower hinge shafts are
If the opening and closing of the front side frame (for example, the front side frame) is not hindered, it may not be coaxial.

The shaft insertion groove, which is a counterpart of the hinge shaft, is provided on the front side frame body with an open end at the main body side and a closed end at the other end so that the hinge shaft can be inserted. This shaft insertion groove can be provided by molding a part of the front side frame body into a groove shape, for example, made of plastic,
For example, it is also possible to adopt a method in which the front frame is manufactured separately from the front frame by using a metal part, and this is attached to the front frame.

The restricting members disposed in correspondence with the shaft insertion grooves respectively have a restraining position for preventing movement of the hinge shaft inserted into the closed end side of the shaft insertion groove to the open end side by, for example, swinging. It is a member that is displaced to a release position that allows the inserted hinge shaft to move toward the open end. The regulating member is urged toward the restraining position by the urging member, and is pressed by the hinge shaft when the hinge shaft is relatively moved from the open end to the closed end, so that the urging force of the urging means is reduced. The hinge shaft is displaced toward the release position to allow passage of the hinge shaft.

Therefore, the rear side of the front frame is opposed to the main body by aligning the shaft insertion groove of the front frame with the corresponding hinge axis, and the front frame is pressed against the main body as it is. For example, with the movement of the front side frame, the hinge shaft relatively moves from the open end to the closed end of the shaft insertion groove, and the hinge shaft presses the regulating member and resists the urging force of the urging means. This is displaced to the release position side and passes from the open end to the closed end of the shaft insertion groove. When the hinge shaft has passed, the restricting member returns to the restrained position by the urging force of the urging means, so that the movement of the hinge shaft inserted into the closed end side of the shaft insertion groove toward the open end side is prevented. . Thus, the front side frame is attached to the main body. Further, since the hinge shaft can be relatively rotated in the shaft insertion groove, the front side frame can be opened and closed around the hinge shaft.

In this way, the front frame can be attached to the main body only by facing the rear of the front frame to the main body and pressing the front frame as it is.
It is not necessary to lift the front edge of the front side frame so as to press it against the base of the upper hinge shaft when mounting.

Further, the removal of the front side frame is completed only by detaching the front side frame from the main body side, for example, by holding the regulating member in a release position with an operator's hand or the like. It is not necessary to lift the side frame so that the upper edge thereof is pressed against the base of the upper hinge shaft.

Therefore, the burden on the operator in the work of attaching and detaching the front side frame is reduced. In addition, the work efficiency can be improved because the front side frame can be attached and detached by one operation of parallel movement. In addition, when this hinge structure is used, the front side frame can be opened and closed on any left or right side. The structure according to claim 2 is the ball game machine according to claim 1, wherein the pair of upper and lower hinge shafts are arranged one by one along right and left sides of the ball game machine. Providing the shaft insertion groove at four locations on the front side frame body corresponding to each of the four hinge axes, disposing the regulating member and the urging member for each of the four shaft insertion grooves; A left releasing means for displacing both of the left side regulating members to the release position and a right releasing means for displacing both the right side regulating members to the releasing position are provided.

In this ball-and-ball game machine, if both the left-side regulating members are displaced to the release position by the left-side releasing means,
The front side frame is opened and closed around the right hinge axis, and if both the right side regulating members are displaced to the release position by the right release means, the front side frame is opened and closed around the left hinge axis. . In other words, the front side frame can be opened and closed on any left and right sides.

Since the front frame of the conventional ball game machine is opened and closed around the left hinge shaft, if the left part inside the ball game machine breaks down, its position is checked. When performing repair work, it became cramped and it was sometimes difficult to perform these works. However, if the configuration of claim 2 is adopted, the front side frame can be opened and closed on any left or right side, so that inspection and repair on either the left or right side can be performed easily without becoming cramped.

Further, when the front frame is opened at the game store, if there is a customer using the ball game machine on the left side of the ball game machine to be opened, the customer temporarily stops the game. I had to get a seat. However, if the configuration of claim 2 is adopted, the front side frame body can be opened and closed on any side of the left and right, so that the left side ball game machine of the ball game machine which needs to open the front side frame body is vacant. If it is open on the left side as an axis, and if the right side is vacant, open on the right side as an axis, at that time suspend the temporary game to the customer using the next ball game machine You do not need to be seated.

Also in the case of such a construction, the mounting and dismounting can be performed by one operation of parallel movement of the front side frame, so that the burden on the operator can be reduced and the work efficiency can be improved. By the way, since it is difficult for the player to operate the left-side release unit and the right-side release unit without permission, it is preferable that the left-side release unit and the right-side release unit be operated by a key, for example.

According to a third aspect of the present invention, there is provided a ball game machine according to the second aspect, wherein the left-side releasing means is inserted into a first keyhole opening on a front surface of the ball game machine. Operated by a key, the right-side unlocking means adopts a structure operated by a key inserted into a second keyhole opened on the front surface of the ball-and-ball game machine.

In this way, it is possible to prevent a person without a key, that is, a player, from opening and closing the front frame without permission. Also, if the first keyhole is arranged on the left side of the ball game machine and the second keyhole is arranged on the right side, the left keyhole is called the first keyhole, and the right keyhole is called the second keyhole. Therefore, there is no possibility that the opening direction is mistaken.

Further, this hinge structure can also be used for a structure for opening and closing a glass frame. Specifically, the configuration described in claim 4 may be adopted. A ball game machine according to a fourth aspect of the present invention is the ball game machine according to the third aspect, wherein a pair of upper and lower glass frame hinge shafts that are substantially coaxial with each other are provided on the left side of the window provided on the front side frame. A pair of the glass frame shaft insertion grooves having the same structure as the shaft insertion groove according to claim 1 is disposed on the right side of the front side frame body so as to correspond to each of the four glass frame hinge shafts. A glass frame regulating member similar to the regulating member according to claim 1 and a biasing member according to claim 1, wherein the regulating member is provided at four locations on the glass frame that is opened and closed. A glass frame biasing member similar to that described above, and operated by a key inserted into the first keyhole to displace both the pair of glass frame regulating members on the left side of the window to the release position. Left release means and insert into the second keyhole It is provided both right releasing means for glass frame to be displaced to the release position a pair of glass frame for regulating member right side of the window being operated by a key.

That is, the relation between the front side frame and the glass frame is the same as the relation between the main body side and the front side frame in the second aspect. For this reason, the mounting and dismounting of the glass frame to and from the front side frame can be performed by one operation of parallel movement of the glass frame as in the case of attaching and detaching the front side frame to the main body side, so that the burden on the operator is reduced. Work efficiency also improves.

Further, since the glass frame can be opened and closed on any of the right and left sides, as in the case of the opening of the front side frame body, when the glass frame is opened, a customer who is using an adjacent ball game machine can temporarily open the glass frame. There is no need to interrupt the game and get a seat. In addition, since the left-side unlocking means for the glass frame is operated by the key inserted into the first keyhole and the right-side unlocking means for the glass frame is operated by the key inserted into the second keyhole, the person without the key, It is possible to prevent a player from opening and closing the glass frame without permission. In particular, if the first keyhole is arranged on the left side of the ball game machine and the second keyhole is arranged on the right side, the left keyhole is called the first keyhole, and the right keyhole is called the second keyhole. Therefore, there is no possibility that the opening direction is mistaken.

[0025]

Embodiments of the present invention will now be described in detail with reference to the drawings.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a pachinko machine 10 as a ball-and-ball game machine has upper, lower, left and right outer shells formed by a plastic main body frame 12, and a lower main body frame 1 on a front side.
A lower edge member 14 integrally formed with the lower edge member 2 is provided.
The lower edge member 14 is provided with a lower receiving tray 16 and a firing handle 18 for operating a firing device (not shown). Further, the upper edge portion 20 and the lower edge member 14 of the main body frame 12 are provided.
Between them, a front frame 22 corresponding to the front side frame of the present invention in a frame shape is arranged. The front frame 22 is openable and closable with respect to the main body frame 12 and is detachable, but the details will be described later.

The left side 24 and the right side 26 of the front frame 22
Are provided with keyholes 28 and 30, respectively, and a window 32 is fitted with a glass frame 34 and a dish door 36. The glass frame 34 holds two glass plates 38, and the glass plates 38 cover the front side of the game board 40. The game board 40 is provided with a substantially circular game area 46 surrounded by two inner and outer guide rails 42 and 44.
Are provided with a well-known winning device, obstacle nails, windmills, etc. (all are not shown). The glass frame 34 is the main frame 1
It is freely openable and closable with respect to 2 and detachable, but the details will be described later.

The plate door 36 is a member for supporting the upper tray 48. The left side portion of the plate door 36 is connected to the front frame 22 via a hinge (not shown).
The hinge can be opened and closed with respect to the front frame 22. At four corners of the front frame 22, hinge mechanisms 50a, 50b, 52a, and 52b that connect the main body frame 12 and the front frame 22 in an openable and detachable manner are arranged. Hinge mechanisms 54a, 54b, 5 for connecting the glass frame 34 in an openable / closable and detachable manner.
6a and 56b are arranged.

Next, the hinge mechanisms 50a to 56b will be described.
b is a symmetrical form that is inverted upside down, and the hinge mechanisms 50a, 50b and the hinge mechanisms 52a, 52b are symmetrical with each other. Also, hinge mechanisms 54a, 54
b, 56a, 56b are hinge mechanisms 50a, 50, respectively.
b, 52a, and 52b, the structure will be described in detail using the hinge mechanism 50a as a representative, and the description of the hinge mechanisms 50b to 56b will be omitted.

As shown in FIG. 2, the upper right corner of the main body frame 12 is provided with a hinge shaft 58 at the upper right and downward from the lower surface of the upper edge portion 20.
Is installed. As shown in FIG. 6, a lower right hinge shaft 60 is provided on the upper surface of the lower edge member 14 so as to be substantially coaxial with the hinge shaft 58. On the other hand, as shown in FIG. 2, on the rear side at the upper right corner of the front frame 22, a hinge bearing 62 at the upper right is located at a position facing the hinge shaft 58 when the front frame 22 is closed as shown in FIG. is set up. The hinge shaft 50 and the hinge bearing 62 constitute a hinge mechanism 50a, and the same applies to the other hinge mechanisms 50b to 56b. However, the hinge mechanisms 54a, 54b, 56a,
In 56b, the hinge shaft is fixed to the front frame 22, and the hinge bearing is mounted on the rear side of the glass frame 34.

As shown in FIGS. 2 and 3, the hinge bearing 62 includes an L-shaped main body 64, a swing plate 66 corresponding to a regulating member, a pin 68 erected on the main body 64, and a swing plate 66. Coil spring 70 as urging means which is stretched around
It is composed of A punching hole 76 is provided in the main body 64 from the vertical portion 72 to the horizontal portion 74, and a portion provided in the horizontal portion 74 in the punching hole 76 is a shaft insertion groove 78. The shaft insertion groove 78 is located on the inlet side (vertical portion 72).
2), the entrance side is directed to the hinge shaft 58 side, as shown in FIG. Further, a step 80 is provided on one side of a portion provided in the vertical portion 72 of the punched hole 76.

A pair of constrictions 82a, 8
2b are provided, and the constrictions 82a and 82b are located at the lower side of the punched hole 76 and penetrate the punched hole 76. One constriction 82a of the swing plate 66 is a step 80
And the other constriction 82b allows a part of the vertical portion 72 to pass therethrough. Further, a spring hole 84 is formed in the swing plate 66, and one end of the tension coil spring 70 is connected to the spring hole 84. For this reason, the swing plate 66 can swing with the vicinity of the constrictions 82 a and 82 b as fulcrums, and the distal end 86 is normally brought into contact with the lower surface of the horizontal portion 74 by the urging force of the tension coil spring 70. At this time, as shown in FIG.
Of the shaft insertion groove 78 is closed.
The constriction 82a prevents the swing plate 66 from being detached from the main body 64.

With such a structure, when the front frame 22 is attached to the main frame 12, as shown in FIG. 5, a position where the hinge shaft 58 enters the shaft insertion groove 78 (FIG. 5).
(See (a), the same applies to the other hinge mechanisms 50b, 52a, and 52b), and the front frame 22 is translated toward the main body frame 12. Then, the hinge shaft 58 comes into contact with the swing plate 66 and pulls the swing plate 66 against the biasing force of the coil spring 70 to swing the tip 86 downward (FIG. 5B).
reference). Further, when the front frame 22 and the main body frame 12 are close to each other and are almost in contact with each other, the hinge shaft 58 passes over the swing plate 66 and reaches the end of the shaft insertion groove 78. Then, the swing plate 66 released from the pressing by the hinge shaft 58 is released.
The tip 86 is driven by the urging force of the tension coil spring 70.
And is brought into contact with the lower surface of the horizontal portion 74 (FIG. 5).
(C)). As a result, the tip 86 closes the shaft insertion groove 78, so that the hinge shaft 58 is prevented from moving toward the open end of the shaft insertion groove 78. At this time, the other hinge mechanism 50b,
52a and 52b are in the same state, and the front frame 22
Is attached to the main body frame 12. Similarly, the glass frame 34 can be attached to the front frame 22.

Next, an unlocking mechanism arranged on the back side of the keyholes 28 and 30 and operated by a key inserted into the keyholes 28 and 30 will be described. However, the left unlocking mechanism corresponding to the left unlocking means operated by the key inserted into the keyhole 28 is symmetrical with the right unlocking mechanism 90 corresponding to the right unlocking means operated by the key inserted into the keyhole 30. Therefore, only the right unlocking mechanism 90 will be described, and the description of the left unlocking mechanism will be omitted.

As shown in FIG. 4, the right unlocking mechanism 90
Unlocking disk 94 provided with protrusions 92a and 92b at two places on the disk
Similarly, an unlocking disk 98 provided with protrusions 96a and 96b at two locations on the disk is provided. The unlocking panel 98 has the projections 96a and 96b opposite in direction to the unlocking panel 94.

A through hole 100 is provided at the center of the unlocking board 94, and an operation rod 102 is penetrated and fixed. Also,
The tip of the operating rod 102 reaches the unlocking panel 98 and the unlocking panel 9
8 is also fixed. Although not shown in detail, the operation rod 102 is connected to the keyhole 30,
If you insert the key into and turn it clockwise or counterclockwise,
Accordingly, the unlocking boards 94 and 96 can be rotated together with the operation rod 102. However, the rotation range of the key (that is, the operation stick 102) is limited to about 40 degrees in both the clockwise direction and the counterclockwise direction, and the key cannot be rotated beyond that.

On the upper side of the projection 92a of the unlocking board 94, the receiving plate 1
04 is in contact with the push-up bar 106 on the upper surface of the receiving plate 104.
Is fixed. Similarly, the receiving plate 108 is in contact with the lower side of the protrusion 92b, and the pressing rod 11
0 is fixed. Similarly, the projection 96a of the unlocking board 98
The receiving plate 112 is in contact with the upper surface of the receiving plate 112, the protrusion bar 114 is fixed to the upper surface of the receiving plate 112, the receiving plate 116 is in contact with the lower side of the projection 96b, and the lower surface of the receiving plate 116 is pressed. Stick 1
18 is fixed.

Then, as shown in FIG.
The tip of 06 is in contact with the rear end of the swing plate 66 of the hinge mechanism 50a, and the tip of the push rod 110 is in contact with the rear end of the swing plate 66 of the hinge mechanism 50b. Although not shown, the tip of the push-up bar 114 is attached to the swing plate 6 of the hinge mechanism 54a.
6 and the tip of the push rod 118 is in contact with the rear end of the swing plate 66 of the hinge mechanism 54b. The push-up bars 106 and 112 and the push bars 110 and 118
Are urged toward the unlocking boards 94 and 98 by springs (not shown).

Next, the operation of the right unlocking mechanism 90 will be described with reference to FIG. In addition, FIG.
(B) and (c) show the hinge mechanism 50a at the upper right corner, the right unlock mechanism 90, and the hinge mechanism 50 at the lower right corner in normal times, respectively.
FIG. 7B is a diagram showing the state of FIG. 6B, and FIG.
Is a hinge mechanism 50 at the upper right corner when the front frame is unlocked.
5A is a diagram showing a state of a right unlock mechanism 90 and a hinge mechanism 50b at a lower right corner. In FIG. 6, in order to make the movement of the right unlock mechanism 90 and the hinge mechanisms 50a and 50b easy to understand, the hinge mechanisms 50a and 50b (FIG.
(A), (c), (d), (f)) are 90 degrees around the vertical axis.
It is shown in a state rotated by degrees.

In the right-side unlocking mechanism 90, when not operated by the key, as shown in FIG.
0 and 118 are in the raised position. On the other hand, if a key is inserted into the keyhole 30 and turned clockwise, the unlocking boards 94 and 98 can be rotated together with the operation rod 102 as shown in FIG. At this time, the projection 92a of the unlocking board 94 pushes up the push-up bar 106 together with the receiving plate 104, and the projection 92b pushes down the push rod 110 together with the receiving plate 108. The unlocking panel 98 also rotates, but as shown in FIG.
Since the projections 96a and 96b do not push the receiving plates 112 and 116, these receiving plates 112 and 116 do not move up or down.

With the rotation of the unlocking board 94, FIG.
As shown in FIG. 6, the push-up bar 106 pushes the swing plate 66 of the hinge mechanism 50a to oscillate in the direction of lowering the tip 86, and as shown in FIG. Since the swinging plate 66 is pushed and the tip end 86 is swung and displaced in a direction of ascending, the two hinge mechanisms 50a, 50b
Swing plate 66 does not restrain hinge shafts 58 and 60.
Here, if the right side 26 of the front frame 22 is pulled, the left side 2
The front frame 22 is pivoted around the hinge mechanisms 52a and 52b on the fourth side.
Can be opened.

Similarly, if the left unlocking mechanism is operated with the key inserted into the keyhole 28, the connection between the main frame 12 and the front frame 22 by the hinge mechanisms 52a and 52b is released, and the right side 26
The front frame 22 can be opened around the hinge mechanisms 50a and 50b on the side. That is, the front frame 22 can be opened on either side.

After the front frame 22 is opened in this manner, the connection between the main body frame 12 and the front frame 22 by the remaining hinge mechanisms 50a, 50b or the hinge mechanisms 52a, 52b is released. It can be removed from the body frame 12. At this time, the remaining hinge mechanisms 50a, 50
b or the swing plate 66 of the hinge mechanisms 52a, 52b may be operated by hand.

Alternatively, if the key is inserted into the keyhole 30 and turned counterclockwise, the projection 96a of the unlocking panel 98 is now
12, the push-up bar 114 is pushed up, and the projection 96b pushes down the push-down bar 118 together with the receiving plate 116. Therefore, the connection between the front frame 22 and the glass frame 34 by the hinge mechanisms 54a, 54b is released, and the hinge mechanisms 56a, 56b are moved. The glass frame 34 can be opened as a shaft. In addition, unlocking board 9
4 also rotates, but the projections 92a and 92b
4, 108 are not pushed, so that these receiving plates 10
4, 108 does not rise or fall. When the left unlocking mechanism is similarly operated with the key inserted into the keyhole 28, the connection between the front frame 22 and the glass frame 34 by the hinge mechanisms 56a and 56b is released, and the hinge mechanisms 54a and
The glass frame 34 can be opened around the axis 54b. That is, the glass frame 34 can be opened on either side.

Further, after the glass frame 34 is opened in this way, the connection between the glass frame 34 and the front frame 22 by the remaining hinge mechanisms 54a, 54b or the hinge mechanisms 56a, 56b is released. It can be removed from the front frame 22. At this time, the remaining hinge mechanism 54
a, 54b or rocking plate 6 of hinge mechanism 56a, 56b
6 may be operated by hand.

As described above, in this pachinko machine 10,
Since the front frame 22 can be attached to and detached from the main body frame 12 by one operation of parallel movement, the work efficiency is improved and the burden on the operator is reduced. Similarly, mounting of the glass frame 34,
Since the removal can be performed by one operation of parallel movement of the glass frame 34, the work efficiency is improved and the burden on the operator is reduced.

In addition, since both the front frame 22 and the glass frame 34 can be opened to the left or right, inspection and repair of either the left or right inside thereof can be performed easily without becoming cramped. Also, when these are released, if the ball game machine adjacent to either the left or right of the pachinko machine 10 to be released is vacant, it is sufficient to open the ball game machine to that side. It is no longer necessary for the customer who is using the game to temporarily suspend the game and stand.

[0048]

Next, a modification of the hinge bearing will be described with reference to FIGS. These examples are examples in which the swing direction of a swing plate as a regulating member is horizontal. (Modification 1) As shown in FIG.
Are the L-shaped main body 163 and the swing plate 1 corresponding to the regulating member.
65, and a torsion coil spring 169 as biasing means loosely fitted to a pin 167 erected on the main body 165.

The main body 163 includes a vertical portion 171 and a horizontal portion 1.
A punching hole 177 is provided to extend through 73.
7, a portion provided on the horizontal portion 173 is a shaft insertion groove 177a. The shaft insertion groove 177a has a substantially U-shape expanding on the entrance side (vertical portion 171 side), and the entrance side is directed to the hinge shaft (not shown). Note that a stopper 177b is provided on the lower surface side of the horizontal portion 173 so as to hang down along one edge of the shaft insertion groove 177a.

The swing plate 165 is provided with a bearing portion 181 through which the pin 167 is inserted, and is swingable about the pin 167 as an axis. Further, one end 183 of the torsion coil spring 169 is locked to the vertical portion 171 of the main body 163,
The other end 185 passes through the swing plate 165. For this reason, the rocking plate 165 normally causes the distal end 187 to abut against the stopper 177b by the biasing force of the torsion coil spring 169. At this time, as shown in FIG. 7A, the tip 187 of the swing plate 165 is in a state of closing the shaft insertion groove 177a.

With this structure, when the front frame 22 is attached to the main frame 12, the hinge shaft is inserted into the shaft insertion groove 177a as in the case of the embodiment.
The front frame 22 is translated toward the main frame 12. Then, the hinge shaft hits the rocking plate 165 and resists against the biasing force of the torsion coil spring 169, and the tip 187 is moved to the position shown in FIG.
The rocking displacement is performed in the counterclockwise direction in (a). Further, when the front frame 22 and the main body frame 12 are close to each other and almost come into contact with each other, the hinge shaft passes over the surface of the swing plate 165 and reaches the end of the shaft insertion groove 177a. Then, the swinging plate 165 released from the pressing by the hinge shaft swings the tip 187 clockwise by the urging force of the torsion coil spring 169 to contact the stopper 177b. As a result, the tip 187 closes the shaft insertion groove 177a, so that the hinge shaft is prevented from moving to the open end side of the shaft insertion groove 177a. At this time, the other hinge mechanisms are in the same state, and the front frame 22 is attached to the main body frame 12. Similarly, the glass frame 34 is attached to the front frame 2.
2 can be attached.

Further, similarly to the unlocking mechanism shown in the embodiment, a mechanism is operated by a key inserted into the keyhole 30 to swing and displace the swinging plate 165 in the counterclockwise direction in FIG. 7A. By using, the front frame 22 and the glass frame 34 can be opened on either the left or right side as in the case of the embodiment. (Modification 2) As shown in FIG.
Is a swinging plate 1 corresponding to an L-shaped main body 164 and a regulating member.
66, a pin 168 erected on the main body 164 and the swing plate 16
6 and a tension coil spring 170 as an urging means.

A punching hole 176 is provided in the main body 164 from the vertical portion 172 to the horizontal portion 174.
The portion provided in the horizontal portion 174 in 76 is a shaft insertion groove 178. The shaft insertion groove 178 has a substantially U-shape expanding on the entrance side (vertical portion 172 side), and the entrance side is directed to the hinge shaft (not shown). The horizontal part 1
On the lower surface side of 74, there is provided a stopper 175 hanging down along one edge of the shaft insertion groove 178. Further, a plate holding portion 179 extending in the lateral direction is provided in a portion provided in the vertical portion 172 of the punched hole 176, and a step 180 is provided on a lower side of the plate holding portion 179.

The swinging plate 166 has a pair of constrictions 182.
a, 182b are provided, and this constriction 182a,
The portion 182b is located in the plate holding portion 179 of the punching hole 76 and penetrates the punching hole 176. One constriction 182a of the rocking plate 166 meshes with the step 180, and the other constriction 182b allows the edge of the punched hole 76 to pass therethrough. A spring hole 184 is formed in the swing plate 166, and one end of the tension coil spring 170 is connected to the spring hole 184. Therefore, the swing plate 166 can swing horizontally in the vicinity of the constrictions 182a and 182b as a fulcrum.
The leading end 186 is brought into contact with the stopper 175 by the urging force of (1). At this time, as shown in FIG. 8C, the tip 186 of the swing plate 166 is in a state of closing the shaft insertion groove 178. The constriction 182a prevents the swing plate 166 from coming off the main body 164.

With such a structure, when the front frame 22 is attached to the main frame 12, the front frame 22 is set at a position where the hinge shaft enters the shaft insertion groove 178 as in the case of the embodiment. It is translated toward the body frame 12. Then, the hinge shaft hits the swinging plate 166 and pulls the swinging plate 166 against the urging force of the coil spring 170.
Oscillating displacement is performed in the counterclockwise direction in (c). Further, when the front frame 22 and the main body frame 12 are close to each other and are almost in contact with each other, the hinge shaft passes through the surface of the swing plate 166 and reaches the end of the shaft insertion groove 178. Then, the swinging plate 166 released from the pressing by the hinge shaft swings the distal end 186 in the clockwise direction by the urging force of the tension coil spring 170 to abut on the stopper 175. As a result, the tip end 186 closes the shaft insertion groove 178, so that the hinge shaft is prevented from moving toward the open end of the shaft insertion groove 178. At this time, the other hinge mechanisms are in the same state, and the front frame 22 is attached to the main body frame 12. Similarly, the glass frame 34 is attached to the front frame 2.
2 can be attached.

Further, similarly to the unlocking mechanism shown in the embodiment, a mechanism is operated by a key inserted into the keyhole 30 to swing and displace the swinging plate 166 in the counterclockwise direction in FIG. 8C. By using, the front frame 22 and the glass frame 34 can be opened on either the left or right side as in the case of the embodiment.

Although the embodiments of the present invention have been described with reference to the examples and the modified examples, the present invention is not limited to these examples, and various modifications can be made without departing from the gist of the present invention. Needless to say.

[Brief description of the drawings]

FIG. 1 is a front view of a pachinko machine according to an embodiment.

FIG. 2 is an explanatory view of a hinge mechanism of the pachinko machine according to the embodiment. FIG. 2A is an explanatory view of a front frame side, and FIG. 2B is an explanatory view of a main body frame side.

3 (a) is a side sectional view, FIG. 3 (b) is a front view, and FIG. 3 (c) is a view illustrating a structure of a hinge bearing mounted on the pachinko machine of the embodiment. It is a top view.

FIG. 4 is an explanatory view of a structure of an unlocking mechanism mounted on the pachinko machine of the embodiment, and FIG. 4 (a) is a front view, FIG.
(B) is a partial cross-sectional side view.

5A and 5B are explanatory views of attaching the front frame to the main body frame in the pachinko machine of the embodiment. FIG. 5A shows the state at the time of starting the installation, FIG. 5B shows the state during the installation, and FIG. Is an explanatory diagram at the time of completion of mounting.

6A and 6B are explanatory diagrams of the operation of the unlocking mechanism mounted on the pachinko machine of the embodiment. FIG. 6A shows the hinge mechanism at the upper right corner in a normal state, and FIG. FIG. 6 (c) is an explanatory view of the hinge mechanism at the lower right corner in the normal unlocking mechanism, and FIG. 6 (d) is the hinge mechanism at the upper right corner when the front frame is unlocked. FIG. 6F is an explanatory view of a right unlocking mechanism when the front frame is unlocked, and FIG. 6F is an explanatory view of a hinge mechanism at a lower right corner when the front frame is unlocked.

7A and 7B are explanatory views of a structure of a hinge bearing according to Modification Example 1, wherein FIG. 7A is a partially broken plan view, FIG. 7B is a partially broken front view, and FIG. It is sectional drawing.

8A and 8B are explanatory diagrams of a structure of a hinge bearing according to Modification 2, in which FIG. 8A is a front view, FIG. 8B is a side sectional view,
FIG. 8C is a plan view.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Pachinko machine (ball game machine), 12 ... Body frame (body side), 14 ... Lower edge member (body side), 16 ... Lower tray, 18
... Launching handle, 20 ... Upper edge (main body side), 22 ... Front frame (front side frame), 24 ... Left side, 26 ... Right side, 28
... keyhole (first keyhole), 30 ... keyhole (second keyhole), 3
2 ... window, 34 ... glass frame, 36 ... dish door, 40 ... game board,
42, 44: guide rail, 46: game area, 48: upper tray, 50a to 56b: hinge mechanism, 58: hinge shaft,
60 ... hinge shaft, 62 ... hinge bearing, 64 ... body, 66
… Rocking plate (regulating member), 68… pin, 70… tension coil spring (biasing member), 72… vertical portion, 74… horizontal portion,
76: punching hole, 78: shaft insertion groove, 80: step, 82: constriction, 86: distal end, 90: right unlocking mechanism (right releasing means, glass frame right releasing means), 92a ... projection (right releasing means) , 92b ... projection (right-side release means), 94 ... unlocking board (right-side release means), 96a ... projection (right-side release means for glass frame), 96b ... projection (right-side release means for glass frame),
Reference numeral 98: unlocking board (right releasing means for glass frame), 102: operating rod, 104: receiving plate (right releasing means), 106: stick-up rod (right releasing means), 108: receiving plate (right releasing means), 1
10: pressed rod (right-side releasing unit), 112: receiving plate (right-side releasing unit for glass frame), 114: stick-up bar (right-side releasing unit for glass frame), 116: receiving plate (right-side releasing unit for glass frame), 118 ... Pressing rod (right releasing means for glass frame).

Claims (4)

[Claims] 1. A ball game machine provided with a front side frame body disposed on a front side and opened and closed with respect to a body side, wherein the ball game machine is opposed to each other along a vertical direction of the ball game machine and fixed to the body side. The upper and lower hinge shafts, the front side frame corresponding to each of the upper and lower hinge shafts, wherein an end that is the width of the hinge shaft and that is on the main body side is an open end and the other end is a closed end. A shaft insertion groove provided in the body, and a restraint disposed to correspond to each of the shaft insertion grooves, for preventing movement of the hinge shaft inserted into the closed end side of the shaft insertion groove toward the open end side. Position and a release position allowing the inserted hinge shaft to move to the open end side. The hinge shaft is urged by the urging member toward the restraining position, and is moved from the open end toward the closed end. Being pressed by the hinge axis when the hinge axis is relatively moved And a regulating member which is displaced toward the release position side against the urging force of the urging means to allow the hinge shaft to pass therethrough. 2. The ball game machine according to claim 1, wherein the pair of upper and lower hinge shafts is arranged one by one along the left and right sides of the ball game machine. Corresponding to each, the shaft insertion groove is provided in four places in the front side frame body, and the regulating member and the urging member are arranged for each of the four shaft insertion grooves. And a right release means for displacing both of the right and left regulating members together to the release position. 3. The ball game machine according to claim 2, wherein said left-side release means is opened at a front surface of said ball game machine.
Wherein the right-side unlocking means is operated by a key inserted into a second keyhole opening on the front face of the ball-and-ball game machine. 4. The ball game machine according to claim 3, wherein a pair of upper and lower glass frame hinge shafts that are substantially coaxial with each other are disposed on the left and right sides of the window provided in the front side frame body. A glass frame shaft insertion groove having the same structure as the shaft insertion groove according to claim 1 is provided on the glass frame that is opened and closed with respect to the front side frame body in correspondence with each of the four glass frame hinge shafts. 4
2. A glass frame regulating member similar to the regulating member according to claim 1 and a glass frame biasing member similar to the biasing member according to claim 1 for each of the four locations. A glass frame left-side release unit for disposing a pair of glass frame regulating members on the left side of the window together to the release position by operating a key inserted into the first keyhole; A ball game machine provided with a glass frame right-side unlocking means which is operated by a key inserted into a keyhole of the window and displaces a pair of glass frame regulating members on the right side of the window to the release position. .