JP3229301B2 - Pachinko machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to the winning ball guiding Uratoi (hereinafter, referred to as. "Uratoi") to <br/> about the pachinko machine equipped with a.

[0002]

2. Description of the Related Art A backing gutter 7 as shown in FIG. 8 is provided on the back of a game board (hereinafter referred to as "game board") 71 of a pachinko game machine.
2 is often attached. The back gutter 72 is used for the game board 7.
1 is for forming a guide path of a winning ball guided to the back surface of No. 1. Then, in order to accurately attach the back gutter 72 to the back surface of the game board 71, a positioning hole 711 is formed in the back surface, and the positioning hole 711 is provided at an appropriate position in front of the back gutter 72. Are often provided (for example, Japanese Patent Application Laid-Open No. 2-74276).

[0003]

However, the conventional back gutter 72 has the following problems. That is, the positioning holes 711 are often drilled using a drill or the like, but in the positioning holes 711, as shown in FIG. In some cases, a defective portion F such as “burr” exists. Since it is difficult to sufficiently fit the positioning projection 721 into such a positioning hole 711, the back gutter 72 often floats from the back surface of the game board 71. As a result, the back gutter 7
2 often has an adverse effect on the operation of the movable components mounted thereon. For example, a member to be separated from the back gutter 72 of the "attacker opening mechanism" may come into contact with the floating back gutter 72, making it difficult to move the mechanism. Specifically, as shown in FIG. 8, a connecting member 82 or the like bridged between the shaft 81 of the opening solenoid and the door (not shown) of the attacker contacts the floating back gutter 72. May be. Also, when attaching a protective cover on the back gutter 72, this attachment tends to be difficult.

On the other hand, a jig such as a drill used for drilling the positioning hole 711 is frequently polished to prevent the occurrence of a “defective portion” F beforehand or to prevent the positioning hole 71 from being drilled.
It is also conceivable to perform an operation of checking the occurrence of the “defective portion” F every time and scraping the generated “defective portion” F. However, if these operations are performed, the back gutter 72 and the pull ,
This increases the manufacturing cost of pachinko gaming machines (hereinafter referred to as “pachinko machines”). From the above situation,
The finished state of the drilled positioning holes 711 is slightly
Even if it is worse, the appearance of a back gutter or the like that can cope with this has been long desired.

[0005] The present invention has been made to solve the problems described above, even if a little poor finished state of the positioning holes provided on the back surface of Yu technique board, accurately taken into the back surface An object of the present invention is to provide a pachinko game machine having a back gutter that can be worn.

[0006]

According to a first aspect of the present invention, there is provided a pachinko game machine having a positioning hole formed on a back surface thereof, and a gutter bottom facing the positioning hole. It has a positioning projection that is projected from a proper place in the front part where the open portion exists, and is fitted into the positioning hole when it is attached to the back surface of the game board, and is attached to the back surface of the game board. in pachinko machine equipped with a back gutter for winning ball induced to form a guide route for guiding the winning ball guided to the back side of the recreation board, the positioning protrusions, Ru is formed on the protruding end side characterized in that it has a concave real part.

[0007] In the pachinko gaming machine according to the first aspect having such a feature, the pachinko machine is provided with a hole formed on the back surface of the game board.
Since recessed portion on the projecting end of the positioning projection of the winning ball guiding back trough fitted into-decided Me hole is formed, "uncut" on the bottom surface of the positioning hole to which the positioning projection is inserted, "scraping Even if there are defective parts such as "damage" and "burr," the back gutter can be attached to the back side of the game board while the defective parts are stored in the recesses so as not to be in the way. Can be improved. Further, since the portion recessed to the projecting end of the positioning projection is formed, the finished state of the positioning hole slightly, worse rather good also drilled jig positioning holes than this ( "drill", etc.) The polishing interval can be lengthened, and the service period of one jig can be lengthened. In addition, since it is not necessary to confirm the presence or absence of a defect in the positioning hole to be drilled or to correct the hole, it is possible to contribute to improvement of the production efficiency and reduction of the production cost of the pachinko game machine. The “height of the positioning projection” is determined in consideration of the relationship with the depth of the corresponding positioning hole. Also,
The “depth of the positioning hole” is determined in a range in which the tip of the nail driven from the front of the game board does not touch (the range in which the tip does not protrude from the bottom of the positioning hole).

[0008] A pachinko gaming machine according to claim 2 is
2. The pachinko game machine according to claim 1, wherein the positioning is performed.
The projection is narrowed down toward the protruding end.
It is characterized by that. Based on this, the positioning hole
The positioning projection can be easily fitted Te, also, back
When molding the gutter, make sure that there is no
Good quality can be prevented from occurring.

Further, the pachinko gaming machine according to claim 3 is:
The pachinko gaming machine according to claim 1 or claim 2.
The above-mentioned gutter for guiding the winning ball uses a predetermined resin-based material.
It is characterized by being manufactured.

[0010] The package according to claim 3 having such features.
In a dick machine, the back gutter for guiding the winning ball is made of a predetermined resin-based
Because it is manufactured using raw materials, it improves manufacturing efficiency and reduces manufacturing costs.
It is easy to reduce the cost of the strike. In addition, "resin-based
The type and composition of the `` material '' are variously selected, for example,
Mainly polycarbonate, ABS, polyacetal, etc.
And the like.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The back gutter 2 is attached to the back of a game board 1 as shown in FIG. This game board 1
It is configured using a substantially rectangular plate-like veneer plywood (plate thickness; 19.5 mm), and is provided with a viewing hole h as shown in FIG. As shown in FIG. 1, a liquid crystal display device E is attached to the back surface of the game board 1 so as to cover the viewing hole h. Further, the display surface of the liquid crystal display device E can be viewed from the front of the game board 1 through the viewing hole h.

An attacker opening mechanism G for moving an attacker (not shown) is attached below the liquid crystal display device E on the back surface of the game board 1. Furthermore, game board 1
On both sides of the location of the liquid crystal display device E,
12 are provided. Winning holes 13 and 14 are also provided below these. Further, a start winning opening 15 for operating the liquid crystal display device E is provided above the position where the attacker opening mechanism G is disposed. Winning openings 16 and 17 are provided on both sides of this location. However, the arrangement locations, the number of arrangements, and the like of the winning ports 11 to 17 are not limited to those shown in the present embodiment. In addition, winning opening 11,
Above 12 is a positioning hole (hole diameter: 8 to 16 mm, depth: 3 to 3.5 mm) as shown in FIGS.
181 and 182 are provided. Furthermore, winning opening 16,
A positioning hole (hole diameter: 8 to 16 mmφ, depth: 3 to 3.5 mm) as shown in FIGS. 1 and 3B is also provided inside 17.
183 and 184 are provided. However, the location, number, etc., of the positioning holes 181 to 184 are not limited to those shown in FIG. FIG. 1 shows only the back gutter 2, the liquid crystal display device E and the attacker opening mechanism G among the members arranged on the back surface of the game board 1, and the other members (each wiring, winning ball detection). , Etc.) are omitted.

On the other hand, the back gutter 2 is made of a translucent synthetic resin material, and has an upper portion 2a attached to the upper side of the back surface 21 of the game board 1 and a lower portion attached to the lower side. 2b. However, the back gutter 2 in which the upper part 2a and the lower part 2b are integrated may be used. Of which, the upper part 2a
Is a main body (plate thickness; 2 mm) and ears (plate thickness; 2 m) arranged on both sides of the upper side, the middle side, and the lower side.
m) M1 to M6. The main body 21a
Draw a roughly arched gutter path. Then, as shown in FIG. 2, while separating the gutter bottom surface 211a from the back surface of the game board 1,
The open portion 212a (opening edge along the gutter path) facing the gutter bottom surface 211a is substantially in contact with or close to the back surface of the game board 1.

Each of the ears M1 to M6 has a substantially plate-like outer shape, and has an open portion 212a formed on the side wall of the main body 21a.
It is arranged substantially horizontally from the side edge. [Refer to 3 (a)]]. Furthermore, as shown in FIG. 3A, through-holes (hole diameters: 17 to 1) penetrating the front and back surfaces, as shown in FIG. 3 (a), are located substantially at the centers of the middle portions M5 and M6 of the ear portions M1 to M6.
7.2 mmφ) D is provided. In addition, from the periphery of the hole D, a hollow portion (hole diameter: 12 m) communicating with the hole D
mm in diameter) positioning projection (height having a P; 2.5 mm, the base-side outer diameter; 17mmφ, the outer diameter of the protruding end side; 15 mm
φ) T is protruding. In addition, as shown in FIG.
The outer diameter of the positioning protrusion T is narrowed down toward the protruding end side because the positioning holes 181 and 1
The reason for this is to make it easy to fit into the projection 82 and to prevent the occurrence of molding defects such as “sink” around the projection T when the back gutter 2 is molded. The spacing between the positioning protrusions T, T substantially corresponds to the spacing between the positioning holes 181 and 182 arranged on the left and right on the upper side of the back surface of the game board 1.

Further, screw holes are provided at substantially the center of the remaining ear portions M1 to M4. And FIGS. 1 and 3
As shown in (a), when the positioning projections T, T are fitted into the corresponding positioning holes 181 and 182, the upper portion 2a
Is aligned with the upper side of the back surface of the game board 1. Furthermore, if a predetermined fixing screw Q is driven into the screw holes of the ears M1 to M4, the upper portion 1a is fixed to the back surface of the game board 1 as shown in FIG. At this time, of the front part Z1 of the upper part 2a (see FIGS. 2 and 3 (a)), each ear M
1 to M6 and the like come into contact with the back surface of the game board 1.
At this time, as shown in FIG.
182, even if there is a defective portion F,
Fits inside the hollow portion P. Therefore, each positioning hole 18
Even if the finishing condition of 1,182 is a little bad,
Can be accurately attached to the back of And this upper part 2a
Forms a guide path on the back side of the game board 1, surrounding a portion except below the liquid crystal display device E. This route is
Through the winning openings 11 and 12 on both sides of the liquid crystal display device E, a winning ball guided to the back of the game board 1 is guided. The prize ball guided in this manner is placed in the opening 25 at the lower end of the upper portion 2a.
It is guided to the lower part 2b through 3a and 254a.

On the other hand, the lower portion 2b is also provided with a main body portion 21b having a substantially arched outer shape, ear portions m1 to m4 projecting substantially horizontally from both upper and lower sides of the main body portion 21b, and a pair of inclined portions of the main body portion 21b. Ears m5 and m6 projecting downward from the wall are provided. The ears m5 and m6 protruding downward are provided with through holes d similar to the through holes D as shown in FIG. 3B. In addition, these ears m5, m6
From the periphery of the through hole d, a similar positioning projection t having a hollow portion p similar to the hollow portion P protrudes.
Further, the interval between the positioning projections t, t arranged on the left and right of the lower portion 2b substantially corresponds to the interval between the positioning holes 183, 184 arranged on the left and right on the lower side of the back surface of the game board 1. Further, screw holes (not shown) into which fixing screws q are driven are also provided in the remaining ears m1 to m4.

The lower portion 2b can be accurately attached to the back surface of the game board 1 irrespective of the finished state of the corresponding positioning holes 183 and 184. At this time, in the front part Z2 of the lower part 2b [see FIG.
m6 and the like come into contact with the back surface of the game board 1. In addition, the lower portion 2b forms a guidance route that surrounds a portion excluding the lower side of the attacker opening mechanism G. This guiding path is used to transfer the winning sphere flowing down through the openings 253a and 254a at the lower end of the upper portion 2a to the openings 251b and 25 at the upper end.
Replenishment is performed at 2b, and the liquid is guided to the openings 253b and 254b at the lower end. At the same time, the winning balls guided to the back surface of the gaming board 1 are guided through the winning ports 13 to 17 provided in the defense range of these guiding paths. However, if another winning opening is provided in each defense range of the above-mentioned guiding route, each guiding route also guides a winning ball guided by the winning opening.

The upper part 2a and the lower part 2b configured as described above can be easily formed integrally using a mold as shown in FIG. This mold includes an upper die K1, a lower die K2, and a hole forming member K3. Among them, the upper die K1 is made by cutting a lower surface side (abutting surface side) of a predetermined die material. Further, the lower mold K2 uses a predetermined mold material as it is. However, it is also possible to use a die manufactured by cutting both the lower surface side of the upper die K1 and the upper surface side (abutting surface side) of the upper die K1. Further, on the upper surface side of the lower die K2, a mounting hole H1 is formed at a position where each positioning projection T, t is formed.

The hole forming member K3 has a substantially columnar convex portion K31 and a pin portion K32 protruding from the rear surface of the convex portion K31. And this convex part K3
Reference numeral 1 denotes a hole shape of a communicating hole (a hole formed by D, P, d, and p) formed by connecting each through hole and each hollow portion with each other, and a convex shape in which irregularities are inverted. The projection K31 is fixed to the upper surface of the lower mold K2 by inserting the pin K32 into the mounting hole H1. Note that a male screw portion may be provided on the side peripheral surface of the pin-shaped portion K32, and a female screw portion screwed to the male screw portion may be provided on the inner peripheral surface of the mounting hole H1.
Then, after the hole forming member K3 is attached to the upper surface side of the lower mold K2, the abutment surfaces of the upper mold K1 and the lower mold K2 are aligned, and the molds are closed to form the upper mold K1 and the lower mold K2. A molding space having a shape in which the outer shape of the upper portion 2a or the lower portion 2b and the concavities and convexities are inverted is formed between them.

As described above, the back gutter 2 is provided with the positioning holes 18.
Even if the finished state of 1-184 is a little bad,
Can be accurately attached to the back of And this back gutter 2 is shown in FIG.
As shown in (b), “attacker opening mechanism” G
It is particularly suitable when mounting a device or the like or attaching a protective cover. Further, if the back gutter 2 is used, it is not necessary to pay much attention to the finished state of the positioning holes 181 to 184. Therefore, it is possible to improve the production efficiency of the back gutter 2 and, consequently, to reduce the production cost of the pachinko machine. Can contribute. Furthermore, since the back gutter 2 can be easily integrally formed using a mold, the manufacturing cost can be reduced.

In addition, the above-mentioned dies are provided with respective positioning projections T, t on the back gutter 2 in accordance with a model change of the pachinko machine.
Even if there is a change in the formation location of
, You can respond instantly. That is, of the cut portion of the upper die K1 of FIG. 4, the concave portion L1 having a trapezoidal vertical cross section for forming each of the positioning projections T, t is placed on the upper die K1.
Is filled with the same material as the constituent material of. Next, a portion of the upper die K1 corresponding to the new projections T and t is cut to form a new concave portion. Then, after filling the mounting hole H1 of the lower mold K2, it is sufficient to provide a new mounting hole at a position where new projections T and t are formed. On the other hand, the convex portion K31
However, if it is inseparable from the upper surface of the lower mold K2, a large amount of labor is required to repair the lower mold K2. That is,
This is because it is necessary to cut a portion other than a new convex portion after filling the portion except the convex portion K31 on the upper surface side of the lower mold K2 with the above-described material. In this way, the present mold can easily perform the above “rework”.

When changing the size of the hollow portions P and p, it is sufficient to replace the hole forming member K3 with one having a desired outer diameter. Further, as shown in FIG. 5, if the hole forming member K3 is attached to the upper die K1, the "rework" is further improved.
It will be easier. That is, the concave portion L2 of the upper die K1 and the mounting hole H
After filling 2 with the above-mentioned material, it is sufficient to form a new concave portion and a mounting hole. That is, it can be dealt with only by modifying the upper mold K1. In this embodiment, the ears M5, M
6, m5, and m6 were provided with through holes D and d.
As shown in (a) and (b), the back gutters 2m and 2n without the through holes D and d may be used. In these cases, FIG.
As shown in (b), positioning protrusions T and t having a concave portion R on the protruding end side may be used. Further, the ears M5, M
6, m5, and m6 may be provided with recessed holes that are continuous with the hollow portions P and p instead of the through holes D and d. Furthermore,
A mold for manufacturing these back gutters 2m, 2n, etc. can be obtained by adding a simple improvement to the mold of FIG.
For example, as shown in FIG. 7, the hole forming member K3 of FIG.
Hole forming member K5 constituted by thinning convex portion K31
It is enough to replace it.

It should be noted that the present invention is not limited to the above-described specific embodiments, but may be modified in various ways within the scope of the present invention in accordance with the purpose and application. Other embodiments and modifications can be made. That is, the location, number, size, etc. of the positioning projections T, t on the upper portion 2a and the lower portion 2b are not limited to those shown in the present embodiment. Further, the back gutter 2 may be composed of (A) two or more parts or (B) an integral product. In the case of the former (a), there is a merit that even when the shape of one part needs to be changed due to a model change of the pachinko machine, the remaining part can be used as it is. The planar shape of the positioning protrusions T and t is often a circular ring shape or an elliptical ring shape, but may be another shape such as a triangular ring shape or a polygonal ring shape.

[0024]

As described above, in the pachinko gaming machine according to the first aspect, the positioning hole formed on the back surface of the game board.
Since recessed portion on the projecting end of the positioning projection of the winning ball guiding back trough fitted into it is formed, "uncut" on the bottom surface of the positioning hole to which the positioning projection is inserted, "scraping Sonji" Even if there is a defective part such as "burr", the defective part is stored inside the recessed part, and the back gutter can be attached to the back of the game board while not disturbing,
The assembly workability can be improved. Also, since a recess is formed on the protruding end side of the positioning projection ,
The finished state of the positioning hole a little, rather it may also be bad,
As a result, the polishing interval of the jig for drilling the positioning hole (such as “drill”) can be lengthened, and the service period of one jig can be lengthened.
In addition, since it is not necessary to confirm the presence or absence of a defect in the positioning hole to be drilled or to correct the hole, it is possible to contribute to improvement of the production efficiency and reduction of the production cost of the pachinko game machine.

Further, in the pachinko gaming machine according to claim 2,
The squeezing of the positioning projections
The positioning hole with respect to the positioning hole.
The projection can be easily fitted and the back gutter is formed.
Occasionally molding defects such as sink marks around positioning protrusions
Can be prevented.

Further, in the pachinko gaming machine according to claim 3,
Is that the back gutter for guiding the winning ball is made using a predetermined resin-based material.
To improve manufacturing efficiency and reduce manufacturing costs.
It becomes easier.

[Brief description of the drawings]

FIG. 1 is a schematic explanatory view showing a state in which a back gutter according to an embodiment of the present invention is attached to the back surface of a game board.

FIG. 2 is a schematic vertical sectional view taken along a horizontal plane passing through a back gutter and a peephole of a game board in FIG. 1;

3 (a) is a schematic longitudinal sectional view of the upper part 2a and the game board 1 of FIG. 1 cut along a vertical plane passing through the center of a positioning protrusion T, and (b) the lower part 2b and the game board 1 of FIG. FIG. 5 is a schematic longitudinal sectional view taken along a vertical plane passing through the center of a positioning protrusion t.

FIG. 4 is a schematic partial longitudinal sectional view of the back gutter of FIG. 1 and a mold for manufacturing the back gutter.

FIG. 5 is a schematic partial longitudinal sectional view of a mold according to a modification of FIG. 4;

6A is a schematic partial longitudinal sectional view showing a state in which a back gutter according to a modification of the embodiment of the invention is attached to the back surface of the game board, and FIG. 6B is a modification of the embodiment of the invention. It is an outline partial longitudinal section showing the state where the back gutter concerning an example was attached to the back of the game board.

FIG. 7 is a schematic partial longitudinal sectional view of a mold for manufacturing the back gutter shown in FIGS. 6 (a) and 6 (b).

FIG. 8 is a schematic partial longitudinal sectional view showing a state in which a back gutter according to a conventional example is attached to the back surface of a game board.

FIG. 9 is a schematic partial longitudinal sectional view of a back gutter according to a conventional example and a mold for manufacturing the back gutter.

10A is a schematic partial longitudinal sectional view showing a procedure for reworking a mold according to a conventional example, and FIG. 10B is a schematic partial view showing a procedure for reworking a mold according to a conventional example. It is a longitudinal cross-sectional view.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1; Game board, 11-17; winning opening, 181-184; positioning hole, E; liquid crystal display device, G; attacker opening mechanism, 2: back gutter, 2a; upper part, 211a;
2a: Open part, 2b: Lower part, M1 to M6, m1 to m
6; ear, D, d; through hole, P, p; hollow, T, t;
Positioning protrusion, K1; Upper die, K2; Lower die, H1, H2;
Mounting hole, K3; hole forming member, K31; convex portion, K3
2: Pin-shaped part.

Claims (3)

(57) [Claims] 1. A game board having a positioning hole formed in a back surface thereof, and a projection hole protruding from an appropriate position in a front portion having an opening facing a bottom surface of the gutter with respect to the positioning hole, and a back surface of the game board. When attached to the, has a positioning protrusion fitted into the positioning hole, is attached to the back of the game board, the guiding path for guiding the winning ball guided to the back of the game board a winning ball guiding back trough to form, in the pachinko game machine equipped with the positioning protrusion, pachinko machines, characterized in that it comprises a concave viewed portion that will be formed on the protruding end side. 2. The positioning projection according to claim 1, further comprising :
2. The method according to claim 1, wherein
The pachinko gaming machine described in the above item. 3. A backing gutter for guiding a winning ball, wherein a predetermined resin-based back gutter is used.
2. The method according to claim 1, wherein the raw material is manufactured using raw materials.
The pachinko gaming machine according to claim 2.