JP2807966B2 - Pachinko machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a support plate for fixing a firing rail or the like of a pachinko machine.

[0002]

2. Description of the Related Art A support plate fixed to the back surface of a front frame is formed by molding the whole of a metal or synthetic resin material. In each case, a foul ball and a spill ball are formed on the front surface of the support plate. A separate member called a foul cover was provided to guide the lower plate.

[0003]

When the entire support plate is made of metal, it is rigid and hardly deforms due to use over time. However, it is expensive and heavy, so that it can be transported and installed in a pachinko machine. In this case, a burden is imposed on the operator. In addition, complicated processing cannot be performed, and for this reason, it is necessary to provide a separate member to form a return ball path for guiding the ball spilled from the foul ball and the prize ball outlet to the lower plate. In order to respond to various required functions, there is no other way but to attach various separate members, and there is a problem that the number of parts increases.

On the other hand, when the whole is made of synthetic resin,
With the lapse of time, the support plate is likely to be distorted or warped, and as a result, a serious problem in the pachinko game is likely to occur, such as the occurrence of unevenness in the firing state of the pachinko balls. Also in this configuration, due to restrictions on molding, the return ball passage is formed by attaching various other members.

SUMMARY OF THE INVENTION The present invention relates to a pachinko machine having a structure capable of solving the problems caused by forming the support plate with a single material of either metal or synthetic resin, and the problems in forming a return ball passage. It is intended to be provided.

[0006]

According to the present invention, a support plate disposed on the back of a front frame of a pachinko machine has a cross-sectional structure in which reinforcing ribs having the same protruding width are connected to the back of a main plate. The back of the support plate is covered with a hard cover plate, and the reinforcement ribs are guided to a width gap corresponding to the protrusion width of the reinforcement rib between the main plate portion of the support plate and the cover plate. A return ball passage for guiding a return ball serving as a side wall to the lower plate is formed.

[0007] The hard cover plate may be formed of a metal plate or a hard synthetic resin plate. Further, it is proposed that the hard cover plate has a shape that covers substantially the entire surface of the support plate, and has an upper edge formed with a locking projection having an L-shaped cross section to be fitted to an upper edge of the support plate. obtain.

Here, a projection such as a boss for mounting a firing rail may be integrally formed on the front surface of the main plate portion of the support plate except for the firing rail and the ball receiving plate.

Further, the return ball passage may be a return ball passage for guiding a foul ball and a spilled ball from the prize ball outlet to the lower plate.

[0010]

As described above, the support plate is formed of a synthetic resin material, and the back surface is covered with a hard cover plate.
The support plate is reinforced by a hard cover plate, and distortion and warpage due to aging are eliminated. In addition, since the return ball passage is formed by the gap between the main plate portion of the support plate and the cover plate, a separate member is separately formed to form the return ball passage only by forming the reinforcing rib into a predetermined shape. No need to apply.

At this time, as described above, when the locking projection having the L-shaped cross section is formed on the hard cover plate, the rigidity is increased by the locking projection, and the distortion or warpage of the support plate is further effectively reduced. Can be stopped.

In addition, by projecting integrally with the front surface of the main plate portion of the support plate except for the firing rail and the ball receiving plate, the number of parts can be further reduced and the ease of assembly can be ensured. .

[0013]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.

As shown in FIG. 1, the front frame 50 of the pachinko machine is used.
Has a glass frame 51 and a front plate 5 below the glass frame 51.
2 are attached. Then, the middle frame 1 according to the present invention is fixed to the back surface of the front frame 50. The middle frame 1 includes a frame portion 3 and a support plate 4, and the inside of the frame portion 3 is a fitting window hole 2 of the game board 53.

A game board 53 having a guide rail 54 is mounted in the fitting window hole 2, and the game board 53 is
In addition to being covered by the window glass, the support plate 4 faces the front plate 52, and a required ball flow path is formed before and after the support plate 4. Further, an upper plate 55 (see FIGS. 6 and 7) is attached to the front surface of the front plate 52, and the cover plate 56 attached to the back surface of the front plate 52 is provided with a punched ball hole 57 and a fired ball communication hole 58. The shot ball hole 57 is formed in the upper ball draining passage 29 described later, and the shooting ball communication hole 58 is formed in the shooting rail 30.
, Respectively. Further, on the back surface of the front plate 52, an opening 6 for supplying a winning ball to the upper plate 55 is provided.
0 is opened so that the mouth portion 60 coincides with the prize ball outlet 9 described later. In addition, a speaker 63 is provided on the back surface of the front plate 52.

A firing hammer, a firing motor for driving the firing hammer, and the like are mounted on the lower rear surface of the front frame 50, and a ball firing handle 61 provided on the lower front surface of the front frame 50 mounts the firing motor. Drive control is performed. Then, balls are sequentially fired on the game board 53 from the firing rail 30 attached to the fitting window hole 2. Below the front frame 50, a lower plate 62 is provided.

Next, the structure of the middle frame 1 is shown in FIGS.
Explanation will be made according to 5.

The middle frame 1 includes a frame 3 and a support plate 4.
Are integrally formed of a synthetic resin material, and the inside of the frame portion 3 is formed as the fitting window hole 2. Here, the support plate 4 includes a main plate 5
And a reinforcing rib 6 intersecting in a cross-girder shape formed on the back surface of the main plate portion 5 is integrally formed. This reinforcing rib 6
Have the same degree of protrusion, and the rear end of the reinforcing rib 6
The thickness of the support plate 4 is determined between the front surfaces of the main plate portion 5. A metal hard cover plate 40 is attached to the back surface of the support plate 4 so as to cover the reinforcing ribs 6. By forming the hard cover plate 40 from a metal material in this manner,
There is an advantage that generation of static electricity can be prevented.

The rigid cover plate 40 is formed so as to cover substantially the entire surface of the support plate 4 and has an upper edge formed on the upper edge of the support plate 2 with a fitting edge formed by thinning the front surface by the thickness of the cover plate 40. 7 is formed with a locking projection 41 having an L-shaped cross section. By being connected to the support plate 4 by the locking projection 41, the rigidity of the locking projection 41 can more effectively prevent distortion and deformation of the main plate portion 5 of the support plate 4.
Then, a gap defined by the protrusion width of the reinforcing rib 6 is formed between the hard cover plate 40 and the main plate portion 5. The fitting edge 7 has a locking projection 8 on the game board 53.
Projecting upward. A notch 42 is formed in the locking projection 41 to allow the locking projection 8 to protrude.

The structures of the support plate 4 and the hard cover plate 40 will be described in more detail.

The upper left edge of the front surface of the support plate 4 is shown in FIGS.
As shown by, a prize ball outlet 9 is formed in a U-shape to discharge the prize ball to the upper plate 55 in front of and behind the mouth portion 60. A notch 43 is also formed on the hard cover plate 40 so as to coincide with the winning ball outlet 9.

Immediately below the prize ball outlet 9, a spill ball opening 10 is formed penetrating the main plate 5 back and forth. The ball is covered with a ball receiving portion 11. An inclined guide plate 12a is formed on one side of the ball receiving portion 11, and a shielding wall 12b is formed on the other side, thereby preventing the spilled ball from scattering. The edge of the prize ball outlet 9 is inclined toward the front side, and when the front plate 52 is opened as described later, the sphere located on the prize ball outlet 9 becomes the ball receiving portion 11. To make it fall. And this spilled ball is received by the ball receiving part 11,
The spilling ball port 10 is guided rearward.

On the other hand, on the back surface of the support plate 4, a spilled ball passage 13 (return ball passage) inclined sideways from the spilled ball port 10 forms upper and lower guide side walls 6 a constituting a part of the reinforcing rib 6. And the hard cover plate 40. The spilled ball passage 13 is further connected to a vertical foul ball passage 14 (return ball passage). The foul ball passage 14 is formed by the left and right guide side walls 6b and the hard cover plate 40.

Further, the main plate portion 5 has a foul ball drop port 65 formed at a connecting portion between the guide rail 54 and the firing rail 30.
A foul ball opening 15 communicating with (see FIG. 1) is formed. The foul ball opening 15 is covered by a funnel-shaped foul ball guide frame 16 which vertically coincides with a foul ball drop port 65 on the front side of the main plate portion 5. be introduced. The upper edge of the side wall of the foul ball guide frame 16 located at the front end of the firing rail 30 is formed with a projection 16a that bounces the foul ball inward of the guide frame 16, and the side wall allows the conventional retrofitting. A foul ball turning member, which is a member, is configured.

The foul ball opening 15 communicates with the upper portion of the foul ball passage 14 on the back surface of the support plate 4. That is, the confluence of the foul ball passage 14 serves as a common path for guiding the ball spilled from the prize ball outlet 9 and the foul ball downward.

As shown in FIG. 6, the foul ball passage 14 vertically coincides with a vertical gutter 73 for a return ball of a bucket body 70, which will be described later, and flows down to the lower plate 62 as a return ball. Thus, the spilled ball passage 13 and the foul ball passage 14 constitute a return ball passage.

Further, on the back of the main plate portion 5 adjacent to the prize ball outlet 9, an out ball port 6 on the game board 53 is provided.
An out-ball passage 17 communicating with 4 is formed by the guide side wall 6c and the hard cover plate 40. The hard cover plate 40 has an out-ball outlet 44 communicating with the lower portion of the out-ball passage 17, and discharges the out-ball to the rear side of the middle frame 1.

On the other hand, three rod-shaped bosses 20 are formed on the front surface of the main plate 5 along the mounting position of the firing rail 30. This boss portion 20 has a fixing hole 21 at its center.
Are formed. This firing rail 30 is connected to the boss 2
The connecting pieces 32 and 33 are bent downward at the front edge and the rear edge of the front edge and the rear edge, respectively, facing the position corresponding to 0. The boss portion 20 is inserted into a through hole formed in the rear edge connecting piece 32. The screw 34 is inserted from the through hole formed in the leading edge connecting piece 33 into the fixing hole 21.
And the firing rail 30 is fixed to the front surface of the main plate portion 5.

At the ball replenishing position of the main plate portion 5, a triangular groove surface 22 substantially equal to the thickness of the ball receiving plate 35 is formed.
Is inserted into a through hole formed in the ball receiving plate 35, and a screw 36 screwed in from one of the through holes is screwed into a fixing hole 24 formed in the groove surface 22. hand,
The ball receiving plate 35 is fixed to the groove surface 22.

On the side of the groove surface 22, a launching ball positioning portion 25 is formed so as to project from the surface of the main plate portion 5.

Further, an upper L-shaped guide wall 27 and a lower L-shaped guide wall 28 are formed below the mounting position of the firing rail 30, and an L-shaped sphere is provided between the guide walls 27, 28. The extraction passage 29 is formed, and as shown in FIG. 7, the upper end opening matches the extraction ball hole 57 (see FIG. 1) of the upper plate 55, and the lower end opening matches the ball extraction vertical gutter 74 of the bucket body 70. It is arranged as follows.

Next, the structure of the bucket body 70 will be described.
The bucket body 70 is configured by connecting an upper path piece 71 and a lower supply gutter piece 72. Here, the path piece 71 includes a return ball downspout 73 communicating with the lower end of the foul ball passage 14 at the left position as shown in FIGS.
A ball draining vertical gutter 74 communicating with the lower end opening of the ball draining passage 29 at the right position is integrally formed adjacently. Further, the supply gutter piece 72 is formed with an L-shaped receiving gutter 75 corresponding to a lower end opening of each of the vertical gutters 73 and 74, and an outlet at a lower end thereof communicates with a ball inlet of the lower plate 62. Further, at the rear of the L-shaped trough 75, as shown in FIGS. 6 and 7, an opening 76 that opens upward at a position rearward of the support plate 4 is formed. Communicate with the upper plate 5
It is used as a ball socket when 5 is full. Thus, via the bucket body 70, a return ball composed of a foul ball and a spilled ball, a ball removed from the upper plate 55 and a return ball when the upper plate 55 is full are transferred to the lower plate 62.

In the above configuration, the ball removing passage 29 of the upper plate 55 is formed differently from the return ball passages (13, 14). Since a large number of balls flow down from 55 at a time, the ball is classified as a separate line in order to facilitate the handling of a clogged ball should it occur.

In the above-described configuration, the main plate portion 5 of the support plate 4 made of a synthetic resin material is used as a mounting surface for the firing rail 30 and the like. A foul ball guide frame 16 having a replacement projection 16a, a launching ball positioning portion 25, which is a conventional separate member, a launching rail mounting boss 20, and the like are integrally formed. For this reason, only the firing rail 30 and the ball receiving plate 35 are retrofitted on the front surface, which facilitates assembly, significantly reduces the number of components, facilitates component management, and enables low-cost manufacturing. .

In the above-described configuration, the middle frame 1 having the frame portion 3 is applied. However, the support plate 4 may be divided from the frame portion 3. In this case, the frame portion 3 may be independently formed of a different material such as a metal material. Further, instead of the wooden front frame 50, a configuration in which the front frame 50 is integrally formed with the support plate 4 may be proposed. Also in this case, the back surface can be covered with the hard cover plate 40 to prevent the support plate 4 from being deformed.

Further, the configuration in which the spilled ball port 10 is provided below the prize ball outlet 9 is shown. However, the bottom of the prize ball outlet is pulled out and coupled with the spill ball port 10, and is always extended. The bottom plate of the guide member to the plate 55 prevents the prize ball from falling into the support plate 4, and the front plate 52 to which the upper plate 55 is attached is opened, and the support plate 4 is pulled from the bottom of the prize ball outlet. You may make it flow directly into the spilling ball passage 13 inside. In the above-described embodiment, the hard cover plate 40 is made of a metal material, but may be formed of a hard ABS resin or the like.

[0037]

According to the present invention, the main plate portion 5 is made of a synthetic resin material.
The support plate 4 is formed by coupling reinforcing ribs 5 having the same protruding width to the back surface of the support plate 4 and the back surface is covered with a hard cover plate 40 made of metal or the like.
0, the distortion and warpage of the main plate portion 5 due to the use over time are eliminated, and the overall weight is reduced, and the workability of transportation, installation, etc. is improved as compared with the case where the main plate portion 5 is made only of a metal material. . At this time, when the locking projection 41 having the L-shaped cross section is bent on the hard cover plate 40, the rigidity is increased by the locking projection 41, and the distortion or warpage of the support plate can be more effectively prevented.

A return ball passage (13, 1) having reinforcing ribs 6 as guide side walls 6a to 6c between the main plate portion 5 and the cover plate 40 is provided.
Since the reinforcing rib 6 is formed into a predetermined shape since the step 4) is formed, it is not necessary to separately apply a separate member such as a foul cover for forming the return ball passage, so that the number of parts is reduced, and the assembly is reduced. Also, parts management becomes easy, and labor and space savings can be achieved.

Further, the main plate portion 5 of the support plate 4 made of a synthetic resin material is used as a mounting surface for a launching rail or the like, and on the front surface thereof, except for the launching rail and the ball receiving plate, the boss 20 for mounting the launching rail and the like. When the protrusion is integrally formed, only the firing rail 30 and the ball receiving plate 35 are retrofitted on the front surface, so that the number of parts is significantly reduced, and assembly and parts management are further facilitated.

[Brief description of the drawings]

FIG. 1 is a front view of a pachinko machine showing an embodiment of the present invention in a state where a glass frame 51 is opened.

FIG. 2 is a front view of the middle frame 1. FIG.

FIG. 3 is an enlarged front view of a support plate 4;

FIG. 4 is a perspective view showing the frame portion 3 and the support plate 4 separately.

FIG. 5 is a perspective view of the back surface of the support plate 4;

FIG. 6 is a schematic longitudinal sectional side view taken along line AA of FIG. 3;

FIG. 7 is a schematic vertical sectional side view taken along line BB of FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Middle frame 2 Fitting window hole 3 Frame part 4 Support plate 5 Main plate part 6 Reinforcement rib 9 Prize ball outlet 10 Spilled ball port 11 Ball receiving part 13 Spilled ball path 14 Fal ball path 15 Fal ball opening 16 Fal ball guide frame 17 Out ball passage 29 Ball release passage 30 Launch rail 35 Ball receiving plate 40 Hard cover plate 41 Locking protruding edge 70 Bucket

Claims (5)

(57) [Claims] 1. A support plate disposed on the back of a front frame of a pachinko machine is formed of a synthetic resin material so as to have a cross-sectional structure in which reinforcing ribs having the same protruding width are connected to the back of a main plate. The back of the support plate is covered with a hard cover plate, and a return ball having the reinforcement rib as a guide side wall is placed downward in a width gap corresponding to the protrusion width of the reinforcement rib between the main plate portion of the support plate and the cover plate. A pachinko machine characterized by forming a return ball passage leading to a dish. 2. The pachinko machine according to claim 1, wherein said hard cover plate is made of a metal plate. 3. The rigid cover plate has a shape that covers substantially the entire surface of the support plate, and has an upper edge formed with an L-shaped locking projection fitted to the upper edge of the support plate. The pachinko machine according to claim 1, wherein: 4. The pachinko machine according to claim 1, wherein a projection such as a boss for mounting a firing rail is integrally formed on a front surface of a main plate portion of said support plate except for a firing rail and a ball receiving plate. 5. The pachinko machine according to claim 1, wherein the return ball path is a return ball path for guiding a foul ball and a spilled ball from a prize ball outlet to a lower plate.