JPH1028768A - Internal frame of pinball playing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve workability in assembling process and to lase maintenance by a constitution wherein one section of an internal frame is made to be a cassette section and is molded as a separated body from a main body part and the cassette section and the main body part are assembled. SOLUTION: An internal frame 30 is constituted of a main body part 30a and a cassette part 30b and the cassette part 30b is a block provided with a storing room 88, an out ball discharging passage 100 and a ball pulling out passage 106. On the other hand, in the main body part 30a, a box-like part which fits to the outer shape of the cassette part 30b and wherein the cassette part 30b can be pulled and inserted is provided. Therefore, for assembling the cassette part 30b to the main body part 30a, the cassette part 30b is inserted from the front face side of the main body part 30 and cutouts 170a and 170b of the cassette part 30b and cutouts 178a and 178b of the main body part 30a are faced to each other and inserted and fixed. Then, a partition plate 152 and a cover 143 are fitted at specified positions of the main body part 30a and are fixed by screws. Finally, the cover 142 is fixed on the main body part 30a by screws.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a game board for a ball-and-ball game machine, a launching device, and a middle frame for supporting a winning ball processing device.

[0002]

2. Description of the Related Art Conventionally, a ball game machine using steel game balls, such as a pachinko machine and an arrangement ball type pachinko machine (arepachi), is used as an outer shell and for attaching the game machine to an island where the game machine is installed. Also used for the outer frame, a front frame mounted on the outer frame via hinges to support the upper plate door, lower tray and launching device, etc., arranged behind the game board to hold the prize ball payout device In many cases, a mechanism plate provided with a prize ball, an out ball, a path for a prize ball and the like, and a frame such as a glass frame mounted on a front frame via a metal frame are provided.

[0003] However, since the frame structure is complicated in such a structure, for example, a middle frame capable of fulfilling both the roles of the above-described front frame and the mechanism plate by one frame has been proposed. Was. Japanese Patent Application Laid-Open No. 8-4757 by the same applicant as the present application.
The storage frame described in the embodiment of Japanese Patent Publication No. 1 is also one example. This inner frame is usually manufactured as a plastic molded product.

[0004]

Such a middle frame is effective in simplifying the frame structure of a ball-and-ball game machine, for example, in reducing the number of assembly steps. By the way, among the various devices and parts to be mounted on the middle frame, those with relatively complicated mounting work due to the mounting position and shape, and those that are difficult to repair or remove in the event of failure There is also. Also, in the middle frame itself, there are also sections in which the shape is complicated and molded separately from the other portions to increase the accuracy and improve the workability.

According to the present invention, a section of the middle frame is formed separately from the main body to be detachable from the main body, thereby improving workability in the assembling process of the ball game machine and improving maintainability. It is intended to improve or improve the manufacturing process of the middle frame.

[0006]

In order to solve the above problems, the center frame of the ball game machine according to claim 1 is a plastic molded product, and the game board of the ball game machine, the launching device and the winning prize. In a middle frame provided with a prize ball path that supports the ball processing device and guides game balls discharged from the prize ball payout device to the upper and lower trays as a prize ball, one section of the middle frame is defined as a cassette section and It is characterized by being formed as a separate body from the main body, and by combining the cassette section and the main body.

According to a second aspect of the present invention, the middle frame of the ball game machine is the middle frame of the ball game machine according to the first aspect, wherein the cassette section has a winning ball processing device for supporting the winning ball processing device. It is a section including a support portion and a connection portion between the prize ball path and the upper saucer.

[0008]

The middle frame of the ball game machine according to the first aspect of the present invention, wherein one section of the middle frame is formed as a cassette section and formed as a separate body from the main body section. This is a structure configured by combining with a main body.

For this reason, for example, by molding a portion having a relatively complicated structure as a cassette section, the accuracy of the cassette section can be improved, and the workability in manufacturing the middle frame can be improved. In addition, if the structure of the conventional middle frame is used, a portion to which a device or component whose mounting work is relatively complicated due to the mounting position or shape is set as a cassette compartment, and the device or component is mounted in the cassette compartment in advance, and the cassette If the step is to assemble the sections to the main body of the middle frame, the work of attaching such devices and parts can be easily performed.

[0010] Alternatively, in the case of a conventional middle frame structure, if a part to which a device or a component is attached to a position where repair work or detachment work becomes difficult in the event of failure is installed as a cassette section, for example, in repairing, first, The work is simple if the cassette compartment is removed from the main body of the middle frame, and then the device or part to be repaired is removed. Attachment of equipment or equipment after repair or new equipment or parts may be performed in the reverse order.

Particularly, the section including the winning ball processing device support portion for supporting the winning ball processing device and the connection portion between the winning ball path and the upper receiving tray tend to have a complicated structure as compared with other portions. If this portion is made into a cassette section as described in item 2, each of the above-mentioned advantages becomes even greater.

The cassette section is appropriately set according to the purpose such as the improvement of workability in the assembly of the ball-and-ball game machine, the improvement of the maintenance property, and the improvement of the manufacturing process of the middle frame, or the target apparatus and parts. It may be set for a plurality of purposes. Further, a plurality of cassette sections may be provided.

Next, embodiments of the present invention will be described more specifically with reference to specific examples of the present invention.

[0014]

FIG. 1 is a front view of a pachinko machine 10 as a ball-and-ball game machine. A variable symbol display device 12, a starting winning port 14 for starting the variable symbol display device 12, and a large winning port 16 opened at the time of a jackpot. , A well-known game board 22 having a normal winning port 18, a windmill 20, an out hole 21 for discharging an out ball, and the like.

The front side of the game board 22 has a double transparent plate 26 held almost entirely by a plastic glass frame 24.
, And a game area 28 is formed between the game board 22 and the transparent plate 26. The glass frame 24 is entirely mounted on a plastic middle frame 30 so as to be openable and closable, and a big hit lamp 32 that is turned on when a so-called big hit state occurs is assembled above the middle frame 30. The middle frame 30 is attached to an outer frame 34 made of plastic on the upper side 34a and plastic on the other three sides via hinges 36, 36 so as to be openable and closable. It can be opened and closed around 36.

An upper plate door 42 having an upper plate 40 is mounted on the middle frame 30 below the glass frame 24 via a hinge (not shown) so as to be freely opened and closed. The upper plate 40 has an upper plate outlet 44 which is an outlet of a game ball discharged from the inside of the pachinko machine 10. The upper plate door 42 is locked on the right rear side in a normal use and is held in a closed state, and at the same time, the upper side portion is pressed by the glass frame 24 and is prevented from being opened. Therefore, in order to open the upper plate door 42, it is necessary to open the glass frame 24 and release the lock on the right rear side.

Below the upper plate door 42, a lower plate member 48 having a lower plate 46 is fixed to the middle frame 30, and a game ball discharged from the inside of the pachinko machine 10 is attached to the lower plate 46. A lower plate outlet 50 which is an outlet of the lower plate is opened. A slide plate 52 is provided at the bottom of the lower plate 46, and the slide plate 52 is slid to discharge holes (not shown).
To release the game balls. The lower plate member 48 is provided with a speaker surface 54 having a plurality of small holes, and a speaker (not shown) that emits sound according to a game state is mounted on the back side of the speaker surface 54.

Further, the lower plate member 48 is provided with a firing handle 56 for operating a firing solenoid 96 (not shown in FIG. 1) for firing game balls supplied from the upper plate 40 to the game area 28. ing. As shown in FIG. 2, on the back side of the pachinko machine 10, a prize ball tank 62 is installed along the upper side of the middle frame 30. This prize ball tank 62
The structure is such that game balls for prize balls are supplied by a game ball supply path from a game machine installation island (hereinafter simply referred to as an island) which is held by the middle frame 30 and is not shown.

At the lower part of the prize ball tank 62, there is provided a prize ball outlet 116 through which game balls can flow out.
16 is a prize ball payout device 120 via a prize ball guiding gutter 118 made of plastic for causing the game balls to flow down while being aligned.
It is connected to the. As described in, for example, Japanese Patent Application Laid-Open No. Hei 5-42248, the prize ball dispensing device 120 converts a game ball introduced from a prize ball guiding gutter 118 by rotation of a flight screw driven by a stepping motor. It can be discharged to the entrance of the transverse passage 112 (not shown in FIG. 2).

The back side of the game board 22 is exposed at a window 58 provided at the center of the middle frame 30. On the back of the game board 22, a control unit 12a of the variable symbol display device 12 is provided.
A winning ball collecting gutter 122 for gathering the winning balls other than the big winning opening 16 is mounted below the winning ball 16.

A power supply board 124 connected to a 24 V AC power supply, a sub-control board 128 connected to the power supply board 124 via a flat cable 126, and a sub-control board 128 connected to the sub-control board 128 via a flat cable 130 are connected to the middle frame 30. A main control board 134 connected to the control unit 12a via the flat cables 132a and 132b is mounted, and these control the electrical components of the pachinko machine 10.

As shown in FIG. 3, an inner frame portion 60 is provided along the outer periphery of the window 58 of the middle frame 30. The left edge 60a of the inner frame portion 60 is provided with projections 72, 72 in a semicircular shape. Although not shown, the projections 72, 72 are also provided on the right edge 60b facing the left edge 60a. The same projection as that described above is provided.

An outer frame portion 64 for accommodating and holding the glass frame 24 and the upper plate door 42 shown in FIG. The lower side of the outer frame portion 64 is formed by inclined surfaces 66, 68 toward the center, and a lower plate guiding path 70 communicating with the lower plate outlet 50 (see FIG. 1) is provided between the two inclined surfaces 66, 68. Is provided.

As shown in FIGS. 3 to 7, a step 74 is provided between the window 58 and the left edge 60a, and as shown in FIGS. 4 and 7, the step 74 is formed between the window 58 and the right edge 60b. A step 76 similar to the step 74 is provided between them. FIG.
As shown in FIG. 4 and FIG.
A pair of board holding parts 138a and 138b are provided below the right side part 60a and the right edge part 60b.
A left round portion 139a is provided from a to the left side edge portion 60a, and a right round portion 139b is provided from the board holding portion 138b to the right side edge portion 60b.

The inner frame portion 60 thus configured has a shape substantially matching the outer peripheral shape of the game board 22, and can accommodate and hold the game board 22 in the inner frame portion 60. Also, the inner frame portion 60
The game board 22 accommodated in the left and right round portions 139a, 1
39b and the bottoms of the board holding parts 138a and 138b, the left and right edges 60a and 60b restrict the movement in the left and right directions. Also, the board holding unit 138
a, 138b restricts the forward movement, and the window 58
The rearward movement is regulated by steps 74 and 76 provided between the inner frame portion 60 and the inner frame portion 60. Therefore, game board 2
The movement of each member 2 in each direction is regulated by the inner frame portion 60, the left and right round portions 139a and 139b, the board holding portions 138a and 138b, and the steps 74 and 76, and the device 2 is held at a predetermined position. In this case, the protrusions 72, 72 provided on the left side edge 60a and the protrusions on the right side edge 60b act to increase the frictional force between the left side edge 60a and the right side edge 60b and the game board 22. .

As shown in FIGS. 3 to 7, on the front side of the lower side 58a of the window 58, a front wall 78 substantially orthogonal to the lower side 58a is provided. As shown in FIGS. 3, 5, and 7, the front wall 78 has a first inclined portion 80 inclined from the left edge portion 60 a toward the right edge portion 60 b and opposite to the first inclined portion 80. A second inclined portion 82 that is inclined is provided. A collective passage 84 through which game balls can pass is formed between the lower curved surface 80a of the first inclined portion 80 and the second inclined portion 82, and below the collective passage 84 is shown in FIG. Thus, the accommodation room 88 for accommodating the winning ball counting device 86 is formed.

As shown in FIG. 9, the winning ball counting device 86
Is provided with a cylindrical upper end 203 having an inlet 201 opening to the collecting passage 84 side, and a spherical passage 208 similarly formed by connecting a cylindrical lower end 205 with a side wall 207.
A pair of openings 2 opposed to each other is provided in the center of the side wall 207.
09, 211, and these openings 209, 211
The proximity switch 213 is installed over the entire area. In the ball passage 208, a swinging member 221 composed of a pair of plate portions 215 and 217 pivotally supported at the upper end portion 203 and a ball receiving portion 219 provided at the tip of the plate portions 215 and 217 is installed. ing. The swing member 221 is driven by a solenoid 225 connected via a wedge member 223, and can swing in the ball passage 208. A spring 227 for returning the solenoid 225 is mounted on the wedge member 223.

With such a configuration, the game ball guided from the collective passage 84 to the winning ball counting device 86 falls in the ball passage 208 and is temporarily stopped at the ball receiving portion 219. Here, the proximity switch 213 is turned on. The signal of the proximity switch 213 is input to, for example, the main control board 134 and used for a predetermined control operation such as operating the winning ball payout device 120. Next, when the swing member 221 is swung in the direction of arrow B by the operation of the solenoid 225, the game ball falls through a gap formed between the ball receiving portion 219 and the ball passage 208. At this time, if there is a subsequent game ball, the game ball is prevented from falling by the wedge member 223. Further, when the wedge member 223 retreats with the return of the solenoid 225, the game ball falls and stops on the ball receiving portion 219, and the proximity switch 213 operates as described above. In this way, the winning game balls are accurately counted and discharged one by one.

As shown in FIGS. 3, 5 and 7, below the accommodation room 88 in which the winning ball counting device 86 is disposed,
The recovery port 89 is open, and the recovery port 89 is connected to a recovery path (not shown) provided on the island. For this reason, the game balls counted by the winning ball counting device 86 are collected on the island.

As shown in FIGS. 3, 5 and 7, the second
The lower part of the inclined portion 82 further projects forward to form a rail mounting portion 90, and as shown in FIGS. 3 and 5, a part of the rail mounting portion 90 is provided with a concave portion 92. As shown in FIGS. 4 and 5, a launch rail 94 is attached to the rail attachment portion 90. As shown in FIG. 5, a game ball placed on the end of the launch rail 94 is inserted into the concave portion 92. A firing solenoid 96 for hitting is mounted. FIG.
As shown in FIG. 5, the firing solenoid 96 is covered with a cover box 98.

As shown in FIGS. 3, 5, 7, and 8, an out-ball discharge path 100 through which game balls can pass is provided between the rail mounting portion 90 and the accommodation room 88. I have. As shown in FIG. 8, a proximity switch 102 is provided in the out ball discharge path 100, and the number of game balls passing through the out ball discharge path 100 can be counted based on an output signal of the proximity switch 102. The exit side of the out-ball discharge path 100 is open above the collection port 89, and the game balls that have passed through the out-ball discharge path 100 are discharged from the collection port 89 to the collection path.

As shown in FIG. 8, the out-ball discharge path 100
Guide plates 101a, 1 for guiding the out ball
01b are provided, and the game balls flowing out of the out holes 21 of the game board 22 can be guided to the out ball discharge path 100. In addition, as shown in FIG.
a and 101b are a part of the cover 143.

On the other hand, as shown in FIG. 3, FIG. 5, FIG. 6, and FIG. 8, an inverted L composed of a leg 104a and an arm 104b is located on the opposite side of the accommodation chamber 88 from the out ball discharge path 100.
A character-shaped distribution chamber 104 is provided. This distribution chamber 10
4 From the lower side to the side, the recovery port 89 is formed as an L-shaped groove.
A ball extraction passage 106 is provided.

A vertical passage 108 communicating with the ball-drop passage 106 is provided along the left edge 60 a of the inner frame 60. The vertical passage 108 communicates with the distribution chamber 104 at the lower end, and as shown in FIGS.
04 (see FIG. 6) or ball-off passage 106 (see FIG. 8)
Are connected alternatively. The end 108a of the vertical passage 108 has a groove shape that opens to the front side, and the front side is closed above it.

As shown in FIG. 6, the vertical passage 108 is communicated with a transverse passage 112 extending from the front side to the rear side through the outside of the left edge 60a of the middle frame 30. The crossing passage 112 projects to the rear side of the middle frame 30 and is connected to the prize ball payout device 120. As shown in FIGS. 4 and 5, the lower portion extends from the board holding section 138a to the board holding section 138b,
2,143. The cover 142,
143 is detachable from the middle frame 30.

The cover 142 has a rectangular upper plate outlet 1
44, roof-like horizontal opening 146a and downward opening 1
A lower plate discharge path 146 provided with 46b (see FIG. 5) is provided. As shown in FIG. 12, a pair of guide plates 101a and 101b are attached to the cover 143, and when the cover 143 is attached to the middle frame 30 as shown in FIG. 4, it is shown in FIG. As described above, the guide plates 101a, 101
The structure connects the out hole 21 of the game board 22 and the out ball discharge path 100 by b.

As shown in FIGS. 4 and 7, a partition plate 152 is mounted on the middle frame 30 between the steps 74 and 76, and a game ball can pass between the partition plate 152 and the front wall 78. Gap 154 is formed. This gap 154
The exit of the prize ball gathering gutter 122 shown in FIG. 2 is arranged inside, and the game balls collected by the prize ball gathering gutter 122 fall into the gap 154.

As shown in FIGS. 4, 5 and 6, the distribution chamber 104 is covered with a cover 142, and the upper plate discharge port 144 is located at a position corresponding to the arm 104b of the distribution chamber 104. The horizontal opening 146a of the discharge path 146 is
The position corresponds to the leg portion 104a of FIG. As shown in FIG. 6, the ball receiving member 1 provided on the upper plate door 42 is provided.
Numeral 60 penetrates through upper plate outlet 144 and reaches inside arm portion 104b. The ball receiving member 160 is a member having a bottom surface and three side surfaces and having an open top and one side surface. The opened side surface communicates with the upper plate outlet 44 of the upper plate 40.

On the other hand, a lower plate discharge path 146 is provided at the leg 104a.
4 and 6, the inclined surface 66 of the middle frame 30 is located below the lower plate discharge path 146, as shown in FIGS. As described above, the prize ball discharge passage 180 for guiding the game ball discharged from the prize ball payout device 120 includes the cross passage 112-the vertical passage 108.
The damper 110 is composed of the distribution chamber 104, the upper half of the vertical passage 108 is closed on the front side, and the lower end is the distribution chamber 1.
04 together with a transparent plastic cover 142.

With such a configuration of the prize ball discharge passage 180 (see FIG. 6), the game ball discharged from the prize ball payout device 120 reaches the front side of the middle frame 30 via the transverse passage 112, and the vertical passage 108 And the path is bent in a substantially horizontal direction at the curved portion including the damper 110, and is discharged into the ball receiving member 160 disposed in the arm 104 b of the distribution chamber 104. Further, the game ball is transferred from the ball receiving member 160 to the upper plate outlet 4.
After passing through 4, it is discharged to the upper plate 40. When a large amount of game balls are stored in the upper plate 40 and the inside of the ball receiving member 160 is filled with the game balls, the ball falls down the vertical passage 108 and is distributed to the distribution chamber 104.
The game balls released into the inside are prevented from entering the ball receiving member 160 by the game balls filling the ball receiving member 160, and thus fall to the leg 104a.

Further, the front wall 78 of the middle frame 30 passes through a winning ball collecting gutter 122 provided on the back side of the game board 22 by winning.
The game ball that has dropped into the gap 154 between the game ball and the partition plate 152 rolls on the first inclined portion 80 and the second inclined portion 82 as shown in FIG. I do. The game balls that have dropped into the winning ball counting device 86 are counted as described above and are discharged one by one. The discharged game balls are discharged from the recovery port 89 to a recovery path.

On the other hand, the game balls that have gone out in the game area 28 are guided to the out hole 21 → the guide plates 101a, 101b → the out ball discharge path 100 as shown in FIG. Thereafter, the ink is discharged from the collection port 89 to a collection path.

Further, when the game balls stored in the prize ball tank 62 are to be discharged when the pachinko machine 10 is replaced, etc., when a ball removal switch (not shown) is turned on, the damper 110 is driven by a solenoid (not shown). FIG.
8 is displaced from the state shown in FIG. 8 to the state shown in FIG. In addition, prize ball payout device 12
0 operates to discharge the game ball from the prize ball tank 62.
The discharged game balls are discharged from the transverse passage 112 and the vertical passage 108 to the collection passage 89 from the collection port 89 via the ball-drop passage 106.

The middle frame 30 as a finished product has the structure described above. The middle frame 30 is composed of two parts, a main body 30a and a cassette 30b. Becomes Hereinafter, the main body 30
a and the cassette section 30b will be described.

As shown in FIG. 10, the cassette section 30b
Are the accommodation room 88, the out ball discharge passage 100, the distribution room 10
4. Lower end 1 of ball-drop passage 106 and vertical passage 108
08a is a block provided. The accommodation chamber 88 to the lower end 108a have already been described. Further, the cassette portion 30b has cutouts 170a, 170a below the out ball discharge path 100 and below the ball extraction path 106.
170b is provided. Also, the cover 142
The projections 172 correspond to the notches 170a and 170b.
a, 172b are provided, and screw holes 174 are provided at the upper end and the right end.
a and 174b are provided.

On the other hand, as shown in FIG.
The cassette section 30b is aligned with the outer shape of the cassette section 30b.
b is provided on the front side of the box-shaped portion 176, and notches 178a, 178a corresponding to the notches 170a, 170b of the cassette portion 30b are provided on the front side of the box-shaped portion 176.
178b are provided. Also, screw holes 180a are formed at the left end of the rail mounting portion 90 and the lower end of the vertical passage 108,
180b are provided.

In order to incorporate the cassette section 30b into the main body section 30a, the cassette section 3 is moved from the front side to the rear side (along the arrow X direction shown in FIG. 11) of the main body section 30a.
0b may be inserted. The cassette part 30b is the box-shaped part 17
6 by contacting the rear wall 176a of the cassette unit 3
The position behind 0b is determined. Naturally, the positions in the left-right and up-down directions are the inner circumference of the box-shaped portion 176 and the cassette portion 30b.
Is determined by contact with the outer periphery of

As described above, the cassette portion 30b is
When inserted into 76, the state shown in FIG. 12 is obtained. At this time, the positions of the main body 30a and the cassette 30b are determined as described above, and the cutouts 170 of the cassette 30b are formed.
a, 170b and notches 178a, 17 in main body 30a
8b opposes to form a hole-shaped portion. Although not shown, the winning ball counting device 86 is already attached to the cassette unit 30b.

Next, the partition plates 152 are pressed against the front surfaces of the first inclined portion 80 and the second inclined portion 82, so that the locking claws 152a, 152b of the partition plate 152 are attached to the main body 30a.
To lock. As a result, the partition plate 152 is attached to the main body 30a.
Attached to. Further, the cover 143 is attached to the main body 30a.
And fix it with the fixing screw. In addition,
The partition plate 152 and the cover 143 are connected to the cassette 30b.
It may be attached to the main body 30a prior to this.

Finally, the protrusions 172a, 1
72b, cutouts 170a, 170b, 178a, 1
The cover 142 is inserted into a hole-like portion formed by the cover 78b, and the cover 142 is pivoted around the hole.
, The screw holes 174a and 174b are aligned with the screw holes 180a and 180b, and the cover 142 is screwed to the main body 30a. Thereby, the cassette unit 30
The movement of b to the front side is also restricted. In addition, the accommodation room 88,
Out ball discharge path 100, distribution chamber 104, ball extraction path 10
6 and the front side of the lower end 108a of the vertical passage 108 are covered with the cover 142, so that the out-ball discharge path 100, the distribution chamber 104, the ball-off passage 106 and the lower end 108a are completed as passages for game balls. Become.

The cassette portion 30b has a cover 14 on the front side.
2, the entire area of the cassette portion 30b is exposed by removing the cover 142, and the cassette portion 30b can be detached from the main body portion 30a and attached freely. Therefore, for example, when a failure occurs in the winning ball counting device 86, the winning ball counting device 86 can be removed and attached simply by removing the cover 142, so that maintenance, repair and replacement of the winning ball counting device 86 are extremely simple. is there.

The structure of the cassette section 30b is
However, by forming the cassette portion 30b and the main body portion 30a separately, the accuracy of the cassette portion 30b can be improved,
Operability in the manufacture of the can be improved.

Further, the winning ball counting device 86 can be attached to the cassette portion 30b in advance and the process of assembling the winning ball counting device 86 to the main body portion 30a can be performed. As described above, the embodiments of the present invention have been described according to the specific examples. However, it is needless to say that the present invention is not limited to the specific examples, and can be variously implemented without departing from the gist of the present invention.

For example, in the specific example, the structure is adopted in which the cassette section 30b is inserted and removed from the front side of the main body section 30a. Further, the cassette section is not limited to the section shown in the specific example, and any section of the middle frame can be a cassette section.

[0055]

As described above, according to the center frame of the ball game machine according to the first aspect, for example, by forming a portion having a relatively complicated structure as a cassette section, the accuracy of the cassette section can be improved. It is possible to improve the workability in manufacturing the middle frame.

In the case of the structure of the conventional middle frame, a part to which a device or component whose mounting work is relatively complicated due to the mounting position or shape is set as a cassette section, and the device or part is mounted in the cassette section in advance. By assembling the cassette section to the main body of the middle frame, the work of attaching such devices and parts can be easily performed.

Alternatively, in the case of the structure of the conventional middle frame, if a part where a device or a part to which a repair work or a detachment work becomes difficult in the case of failure is installed is set as a cassette section, for example, in the case of repair, for example, The work is simple if the cassette compartment is removed from the main body of the middle frame, and then the device or part to be repaired is removed.

In particular, the section including the winning ball processing device support portion for supporting the winning ball processing device and the connection portion between the winning ball path and the upper receiving tray tend to have a complicated structure as compared with other portions. If this portion is made into a cassette section as described in item 2, the above-mentioned effect is further enhanced.

[Brief description of the drawings]

FIG. 1 is a front view of a pachinko machine using a middle frame of a specific example.

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

FIG. 3 is a perspective view of a middle frame of a specific example.

FIG. 4 is a perspective view of a lower portion of a middle frame of a specific example.

FIG. 5 is an exploded perspective view corresponding to FIG.

FIG. 6 is an explanatory diagram of a prize ball discharge path in a middle frame of a specific example.

FIG. 7 is an explanatory diagram of a winning ball collection path in the middle frame of the specific example.

FIG. 8 is an explanatory diagram of a ball-dropping path and an out-ball collecting path in a middle frame of a specific example.

FIG. 9 is an enlarged explanatory view around the winning ball counting device in the middle frame of the specific example.

FIG. 10 is an exploded perspective view for explaining a cassette portion and a cover of a middle frame of a specific example.

FIG. 11 is an explanatory view showing the vicinity of a box-shaped portion of a middle frame of a specific example.

FIG. 12 is an explanatory diagram of assembling a cassette unit in a middle frame of a specific example.

[Explanation of symbols]

Reference numeral 10: pachinko machine (ball game machine), 12: variable symbol display device, 14: starting winning opening, 16: large winning opening, 18: normal winning opening, 21 ... Out hole, 2
2 ... game board, 24 ... glass frame, 26 ... transparent plate, 28 ... game area, 30 ... middle frame, 30a ...
・ Main body part, 30b ・ ・ ・ Cassette part, 34 ・ ・ ・ Outer frame,
40 ... upper plate (upper tray), 42 ... upper plate door, 44
..Top plate outlet, 46 ... Bottom plate (bottom tray), 48 ...
Lower plate member, 50: lower plate outlet, 56: firing handle, 58: window, 60: inner frame, 62: prize ball tank, 70: lower plate taxiway ( Prize ball route), 84 ...
Collective passage, 86: winning ball counting device (winning ball processing device), 88: accommodation room (winning ball processing device support portion), 9
6 ... launch solenoid, 100 ... out ball discharge path, 101a, 101b ... guide plate, 102 ... proximity switch, 104 ... distribution chamber (prize ball path), 104
a: legs (prize ball path), 104b: arms (prize ball path), 106: ball-off path, 108: vertical path (prize ball path), 108a: lower end (Prize ball route),
110: damper, 112: crossing passage (prize ball path), 116: prize ball outlet, 118: prize ball guiding gutter, 120: prize ball payout device, 122: prize Ball collecting gutter, 128: sub-control board, 134: main control board, 142: cover, 143: cover, 144
... Upper plate discharge port, 146 ... Lower plate discharge path, 146a
... lateral opening, 146b ... downward opening, 152
... Partition plates, 170a, 170b ... Notches, 1
72a, 172b ... projection, 174a, 174b ...
・ Screw hole, 176 ・ ・ ・ Box-shaped part, 176a ・ ・ ・ Back wall, 178a, 178b ・ ・ ・ Cut, 180 ・ ・ ・
Prize ball discharge passage, 180a, 180b ... screw holes.

Claims (2)

[Claims] 1. A plastic molded product that supports a game board, a launching device, and a winning ball processing device of a ball game machine and guides game balls discharged from a prize ball dispensing device to upper and lower trays as prize balls. In the middle frame of the ball game machine provided with the prize ball path, by forming one section of the middle frame as a cassette section and molding this separately from the main body section, by combining the cassette section and the main body section A middle frame of a ball game machine characterized by being constituted. 2. The middle frame of the ball game machine according to claim 1, wherein the cassette section includes a winning ball processing device supporting portion for supporting the winning ball processing device, a winning ball path, and the upper receiving tray. A middle frame of the ball game machine, which is a section including a connection portion.