JP3071407B2 - Method of manufacturing frame for ball and ball game machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a frame of a ball game machine such as a pachinko machine and an arrange ball machine.

[0002]

2. Description of the Related Art A ball game machine such as a pachinko machine, an arrangement ball machine or the like has an outer frame, a front frame which is pivotally attached to the front side of the outer frame so as to be openable and closable, and has a window hole substantially in the center. A game board removably mounted in a window hole of the front frame, an annular guide rail is provided on the game board, and an obstacle nail, a prize winning device, a display lamp, etc. are provided in a range surrounded by the guide rail. Various game parts are installed. Conventionally, the outer frame and the front frame of this ball-and-ball game machine are formed by bonding or processing a veneer plate having a predetermined shape using a veneer plate in which a plurality of veneers are bonded, or a mold using a synthetic resin. Among them, there is one integrally formed into a predetermined shape.

[0003]

Conventionally, the outer frame and the front frame are most often made of plywood, but recently, natural wood has been used from the viewpoint of protection of forest resources or environmental protection. It becomes difficult to obtain the product itself, and the manufacturing cost tends to increase accordingly. On the other hand, synthetic resin products are molded integrally in a mold, so molding is easy with a mold device, but the mold device becomes very large,
Since a large amount of cost is required for the manufacturing equipment including the mold apparatus, there is a disadvantage that the manufacturing cost is significantly increased as compared with the conventional veneer type. In view of such a conventional problem, the present invention can be easily and inexpensively manufactured using existing manufacturing equipment using a polyethylene plate material, can secure sufficient strength, and can easily recycle materials. An object of the present invention is to provide a method for manufacturing a frame of a ball-and-ball game machine that can contribute to protection of resources and protection of the environment.

[0004]

According to the present invention, there is provided an outer frame 1 having a window hole 4 for opening and closing a game board 7 which is openably and closably mounted on the front side of the outer frame 1 and substantially at the center thereof. When manufacturing the outer frame 1 of the gaming machine provided with the frame 2, the polyethylene plate 37 having a high-density skin layer 69 on both the front and back sides, and a low-density foam layer 70 inside, is formed. The polyethylene plate material 37 is cut into a predetermined size and substantially band-shaped side frame plates 50, 51,
An upper frame plate 52, a lower frame plate 53, and a front frame plate 54 are formed, and a pair of side frame plates 50, 51 are provided on both left and right sides. A front frame plate 54 is disposed at the front lower end of the pair of side frame plates 50 and 51, respectively.
The outer frame 1 in which the corners of the outer frame 0, 51, the lower frame plate 53, and the front frame plate 54 are mutually reinforced by the reinforcing metal members 67 is manufactured.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a front view of a pachinko machine showing an embodiment of the present invention, and FIG. 2 is a perspective view of the pachinko machine in an open state. 1 and 2, reference numeral 1 denotes a rectangular outer frame, 2 denotes a front frame, and the front frame 2 is pivotally attached to the front side of the outer frame 1 by a pair of upper and lower hinges 3 so as to be freely opened and closed, and substantially at the center. A window hole 4 is formed. 5 is a glass door and 6 is a front plate, which are vertically arranged in a window hole 4 of the front frame 2 and are pivotally connected so as to be freely opened and closed. Numeral 7 denotes a game board, which is detachably attached to the mounting frame 29 of the front frame 2 from the rear side so as to correspond to the glass door 5. On the front of the game board 7,
A guide rail 8 for guiding game balls is provided,
Floating symbol display device 9, lower winning device 10, left winning device 11,1
2, right winning devices 13,14, entrance 15,16, outer decoration 17,18
Various game parts such as interior decorations 19 and 20 are mounted, and a number of obstacle nails 21 are provided.

An upper plate 22 is mounted on the front plate 6, and a front frame
2, a lower plate 23 and an operation handle 25 for the launching device 24 are provided. The launching device 24 includes an operation handle 25 and a launching motor 26 attached to the front and rear of the front frame 2.
Reference numeral 27 denotes a lower plate passage for guiding a prize ball to the lower plate 23, and reference numeral 28 denotes a fastening lever for a back set plate, two provided on the left and right sides of the mounting frame 29. Numeral 30 denotes positioning pins, two of which are provided on the upper part of the mounting frame 29. Reference numeral 31 denotes a back set plate for pressing and fixing the game board 7 in the mounting frame 29. The back set plate 31 has a window hole 32 formed at the center and two left and right holes 33 formed at the upper part. The back set plate 31 is detachably fastened to the rear side of the mounting frame 29 of the front frame 2 by the fastening levers 28 with the holes 33 aligned with the positioning pins 30. On the rear side of the back set plate 31, a prize ball tank 35 and a prize ball payout device 36 are attached.

The front frame 2 is constructed as shown in FIGS. 3 and 4 using a polyethylene plate 37 having a structure as shown in FIG. The front frame 2 is formed by cutting a polyethylene plate material 37 into a rectangular shape and forming a rectangular window hole 4 at a substantially central portion thereof. That is, the front frame 2 has a rectangular plate shape using a polyethylene plate material 37, and integrally includes an upper frame portion 38, a lower frame portion 39, and a pair of left and right side frame portions 40 and 41.
To 41, a rectangular window hole 4 is formed. The upper frame portion 38 has a mounting hole 42 for an indicator lamp, and the lower frame portion 39 has a launching device 24.
Mounting holes 43, mounting holes 44 for the lower plate passage 27, wiring holes 45, and the like, and a key hole 46 is formed in the side frame portion 41, respectively.
As shown in FIG. 4, a decorative plate 47 is mounted on the front surface of the front frame 2 so as to cover the frame portions 38 to 41 from the front.
The front side is finished. The decorative plate 47 is made of a thin synthetic resin and, as shown in FIG. 6, integrally includes mounting pins 48 dispersedly arranged at appropriate positions on the rear side, and the mounting pins 48 are attached to the pins on the front frame 2 side. It is detachably mounted by inserting it into the hole 49. On the rear side of the front frame 2, a mounting frame 29 is attached with a nail, a screw, or the like corresponding to the window hole 4,
The game board 7 is detachably fitted into the mounting frame 29 from the rear side.

As shown in FIGS. 8 and 9, the outer frame 1 has a rectangular frame shape using a polyethylene plate 37 as in the front frame 2. That is, the outer frame 1 corresponds to FIGS.
As shown in FIG. 5, a pair of left and right side frame plates 50, 51, an upper frame plate 52 and a lower frame plate 53 connecting the upper and lower ends of the pair of side frame plates 50, 51, and a pair of side frame plates A front frame plate 54 connects front lower end portions of the front frames 50, 51, and a front frame 2 is mounted on the outer frame 1 above the front frame plate 54 and openable and closable from the front side. Each of the frame plates 50 to 54 constituting the outer frame 1 is a band plate shape obtained by cutting the polyethylene plate material 37 into a band shape having a predetermined length and width. Then, a pair of side frame plates 50, 51, an upper frame plate 52, and a lower frame plate 53
The side frame plates 50 and 51 and the upper frame plate 52 are shown in FIGS.
As shown in the figure, the concave and convex portions 55 and 56 are formed at both ends thereof, and the two concave and convex portions 55 and 56 are engaged with each other in the right angle direction. Each of the side frame plates 50 and 51 is joined to each other by driving a nail 57 into the side.

The front end of the lower frame plate 53 is, as shown in FIG.
By projecting forward from the side frame plates 50, 51 by the thickness of the front frame plate 54, so as to contact the upper surface of the front end of the front frame plate 54,
The front frame plate 54 is fixed to the front lower ends of the pair of side frame plates 50 and 51. The lower frame plate 53 and the front frame plate 54 are
The left and right ends of the front frame plate 54 are fixed to the respective side frame plates 50 and 51 by nails 59. At the corners between the left side frame plate 50 and the upper frame plate 52, as shown in FIGS. 8 and 12, a mounting portion 61 for mounting the upper bracket 60 for the hinge 3 is formed. Thus, the L-shaped mounting base 62 of the upper bracket 60 is fixed by screws 63. At the corners of the left side frame plate 50 and the front frame plate 54, as shown in FIGS.
The mounting base 65 of the lower bracket 64 is fixed by screws 66. Therefore, the upper and lower sides of the left side frame plates 50, 51 are reinforced by the mounting bases 62, 65 of these brackets 60, 64.

The corners of the right side frame plate 51, the upper frame plate 52, and the lower frame plate 53 are reinforced with reinforcing metal fittings (not shown), and the side frame plates 50, 51, the lower frame plate 53, As shown in FIG. 14, a reinforcing member 67 is fixed to a corner of the frame plate 54 with a screw 68, and the reinforcing members 67 are reinforced with each other. As shown in FIG. 5, the polyethylene plate 37 has a skin layer 69 having a high density, a high specific gravity, a large bending strength and a high hardness on the surface side.
Each has a low-density foam layer 70 on the inner side. The polyethylene plate 37 has, for example, a thickness of about 19 mm, and a surface layer of 2 to 8 mm is a skin layer 69 and the remaining 15 to 3 mm is a foam layer 70, or the polyethylene plate 37 is Of the total thickness, about 1/3 on both sides is the skin layer 69, and the remaining 1/3
Is the foam layer 70.

The values of the polyethylene plate 37 are merely examples, and the boundary between the skin layer 69 and the foam layer 70 is not clear, and is given as a guide. Therefore, the thickness ratio of the skin layer 69 and the foam layer 70 of the polyethylene plate 37 is determined by taking the overall strength of the outer frame 1 and the front frame 2 into consideration as a whole of the polyethylene plate 37. Is desirably about 0.8 ± 0.15 g / cm ³ . In the case of manufacturing the front frame 2 of this embodiment, as shown in FIG. 7, a long polyethylene plate 37 is first formed by an extruder 71 or the like using a polyethylene material. Of course, the thickness ratio between the skin layer 69 and the foam layer 70 of the polyethylene plate 37 is determined before molding by the extruder 71 or the like, and the polyethylene plate 37 having the thickness ratio is formed.

The polyethylene plate material 37 has very good machinability like ordinary wood and can be handled in the same way as wood, so that the existing front frame production line for wood is used thereafter. And the front frame 2 from the polyethylene plate 37
To finish. That is, the polyethylene plate material 37 is sent to the front frame production line, and the polyethylene plate material 37 is first cut into a predetermined size by a cutting machine or the like to obtain a substantially rectangular front frame material.
Make 72. When the rectangular front frame material 72 is formed, the front frame material 72 is then set on a processing machine such as a router, and a rectangular window hole 4 is formed in a substantially central portion of the front frame material 72, Mounting holes 42 for other indicator lamps, mounting holes 43 for the firing device 24, mounting holes 44 for the lower plate passage 27, and through holes 45 for wiring
Etc. are pierced at predetermined locations. Thereby, the upper frame portion 38, the lower frame portion 39, and the pair of left and right side frame portions 40, 4 surround the window hole 4.
Since a plate-shaped front frame 2 with 1 and 1 is created,
As shown in FIG. 6, each mounting pin 48 of the decorative panel 47 is inserted into the mounting hole 49 of the front frame 2, and the decorative panel 47 is mounted on the front side of the front frame 2 as shown in FIG. When the mounting frame 29 is attached with nails or screws, the work is completed.

The decorative plate 47 is attached to the front frame 2 by mounting pins 48, and as shown by phantom lines in FIG.
A bent portion 47a surrounding the front frame 2 is provided on the periphery of the 47, and the bent portion 47a is fixed to the front frame 2 with nails or the like. Or the like, or a structure of bonding by a bonding means such as high-frequency bonding. Also in the case of manufacturing the outer frame 1, the outer frame 1 is manufactured from the polyethylene plate 37 by using the polyethylene plate 37 in the same manner as the front frame 2 and utilizing the existing outer frame manufacturing line for wood. That is, in the case of outer frame 1,
Since the side frame plates 50, 51, the upper frame plate 52, and the like are made of a strip-shaped material, the molded polyethylene plate 37 is cut into a strip of a predetermined width by an appropriate cutting machine such as a slitter.

Next, the strip-shaped material is sequentially cut to a predetermined length by a cutting machine to produce frame material such as side frame plates 50, 51 and an upper frame plate 52. Then, both ends of each frame material are formed. 55,5
Process 6 If each frame board material is made in this way,
As shown in FIGS. 11 and 12, the side frame plates 50 and 51, the upper frame plate
52, the concave and convex portions 55 and 56 of the lower frame plate 53 are formed in a rectangular shape by meshing at right angles to each other, and the joints thereof are fixed by nails 57. Then, when the front frame plate 54 is attached and the brackets 60, 64, the reinforcing fitting 67, and the like are appropriately attached, the outer frame 1 as shown in FIGS. 8 and 9 is completed. The lower frame plate 53
A decorative panel may be attached to the front end face of the front panel and the front face of the front frame plate 54. As described above, the outer frame 1 is formed using the polyethylene plate material 37.
If the front frame 2 is formed, the polyethylene itself is inexpensive, so that it is very economical. Also made of polyethylene plate
37 is compared with other synthetic resin materials, cutting, drilling,
Machining such as cutting is very easy like wood, and workability during production and finish after processing are very good.

Moreover, since the plate material 37 made of polyethylene is used, it is only necessary to perform mechanical processing such as cutting, drilling, cutting, etc., and it can be manufactured by the same processing as that of conventional wood.
Existing manufacturing equipment used to manufacture the conventional outer frame 1 and front frame 2 made of wood can be used as is, and despite the fact that it is a kind of synthetic resin, there is no complicated mold, etc. Not required. Therefore, the outer frame 1 and the front frame 2 using the polyethylene plate 37 have an advantage that they can be implemented easily and at low cost as compared with the conventional synthetic resin.

Further, since the polyethylene plate material 37 has a sandwich structure in which the foam layer 70 inside is sandwiched from both sides by the high-density skin layer 69 on the surface side, sufficient rigidity is secured as compared with other foam materials. At the same time, polyethylene plate material
It is easy to drive nails or the like into 37. In addition, the polyethylene plate 37 has a skin layer 69 having a high density on the surface and a large specific gravity, bending strength and hardness.
The surface damage can be sufficiently prevented by 69, and the strength and the like of the polyethylene plate material 37 can be reduced by the skin layer 69 and the foam layer.
It can be easily adjusted by appropriately changing the thickness ratio of 70. In particular, polyethylene has very good abrasion resistance and impact resistance, and also has a low coefficient of friction and excellent self-lubricating properties, so that it is made of conventional wood or other synthetic resins. Outer frame 1 and front frame 2 can be very little damaged,
The durability is significantly improved.

In this embodiment, the polyethylene plate 37 has a specific gravity of 0.8 g / cm ³ and a bending strength of 90 to 90 g / cm ^3.
One having a hardness of 120 kg / cm ² and a hardness of about 3.6 to 4 ton / cm ² was used. However, it is not limited to this. In addition, polyethylene is high density polyethylene, medium density polyethylene,
Low-density polyethylene may be used, or ultra-high-density polyethylene may be used. Since the outer frame 1 and the front frame 2 are made of polyethylene plate material 37, if the ball game machine is discarded, after removing each game board 7 etc., the bracket
If the 60, 64, the reinforcing bracket 67, the nails, etc. are removed, it can be reused as a polyethylene material, and recycling is very easy. In this case, since polyethylene is a thermoplastic synthetic resin, it is softened only by slightly heating, so if the brackets 60, 64, the reinforcing bracket 67, the nails, etc. are removed in a heated state, it is relatively easy to remove them. it can.
In addition, since polyethylene has a specific gravity smaller than that of water, if it is crushed or crushed, it can be easily separated from others by specific gravity selection using water.

Although the above embodiment has been described with reference to the case where one polyethylene plate 37 is used, the present invention is not limited to this. For example, a thin plate having a skin layer 69 and a foam layer 70 may be used. It is also possible to use a plurality of the polyethylene plate members 37, and to laminate the respective polyethylene plate members 37 in the thickness direction. In this case, the polyethylene plate members 37 of the respective layers may be integrated by an adhesive, high-frequency bonding, heat welding, or the like, or may be joined by rivets or the like. Needless to say, the outer frame 1 can be used not only for pachinko machines but also for arrange ball machines, sparrow ball game machines, and the like. Furthermore, in the embodiment, both the outer frame 1 and the front frame 2 are made of the polyethylene plate material 37.
Needless to say, only one is acceptable.

[0019]

According to the present invention, a polyethylene plate 37 having a high-density skin layer 69 on each of the front and back sides and a low-density foam layer 70 inside thereof is formed, and the polyethylene plate 37 is reduced to a predetermined size. By cutting, substantially frame-shaped side frame plates 50, 51, an upper frame plate 52, a lower frame plate 53, and a front frame plate 54 are formed, and a pair of side frame plates 50, 51 are provided on both left and right sides. An upper frame plate 52 and a lower frame plate 53 are arranged on both upper and lower ends of the plates 50 and 51, and a front frame plate 54 is arranged on the front lower end side of the pair of side frame plates 50 and 51, respectively. Five
Since the outer frame 1 in which the corners of the lower frame plate 53, the front frame plate 54, and the front frame plate 54 are mutually reinforced by the reinforcing metal fittings 67 is manufactured, the machining of the polyethylene plate material 37 is very easy. It can be manufactured easily and inexpensively with a manufacturing facility, and a sufficient strength can be secured. In particular, since the machining of the polyethylene plate material 37 itself is very easy, the workability at the time of production and the finish of the outer frame 1 after the processing are very good. Moreover, since the side frame plates 50, 51, the upper frame plate 52, the lower frame plate 53, and the front frame plate 54 are formed by machining the polyethylene plate material 37 and machining the same, the outer frame 1 made of synthetic resin is used. Regardless, as compared with the case where the integral molding method is adopted by die molding, large-sized molding equipment and the like are unnecessary, and the outer frame 1 can be manufactured easily and at low cost. Also, if the polyethylene plate 37 is molded,
Thereafter, the polyethylene plate material 37 is cut into a predetermined size to obtain substantially band-shaped side frame plates 50, 51, an upper frame plate 52, a lower frame plate 53, and a front frame plate.
It is sufficient to construct the outer frame 1 by combining them, and the outer frame 1 can be manufactured by machining, despite the fact that the outer frame 1 is made of synthetic resin. The existing production equipment used for the production can be used as it is, and therefore, the frames 1 and 2 can be easily produced without using a large-sized mold device and the like. Can be manufactured easily and inexpensively as compared with

In addition, a polyethylene plate material having a sandwich structure in which the inner foam layer 70 is sandwiched from both sides by a skin layer 69 having a high density on the surface side and a large specific gravity, bending strength and hardness.
Since 37 is used, sufficient rigidity can be secured,
It is also easy to drive a nail into the polyethylene plate 37. In particular, polyethylene plate material 37 has very good abrasion resistance and impact resistance as its properties, and has a small friction coefficient and excellent self-lubricating properties.
Alternatively, the outer frame 1 itself is much less damaged than the one made of another synthetic resin, and the durability is remarkably improved. Further, since the polyethylene plate material 37 is a thermoplastic resin, it is easy to recycle materials after disposal, and has an advantage that it can contribute to protection of forest resources and environment.

Each of the side frame plates 50, 51, the lower frame plate 53, and the front frame plate 54
Are mutually reinforced by the reinforcing metal members 67, so that the strength of the joint between the side frame plates 50, 51, the lower frame plate 53, and the front frame plate 54 can be easily secured.

[Brief description of the drawings]

FIG. 1 is a front view of a pachinko machine showing one embodiment of the present invention.

FIG. 2 is an open perspective view of the pachinko machine showing one embodiment of the present invention.

FIG. 3 is a perspective view of a front frame showing one embodiment of the present invention.

FIG. 4 is a sectional view of a front frame showing one embodiment of the present invention.

FIG. 5 is a cross-sectional view of a plate made of polyethylene showing one embodiment of the present invention.

FIG. 6 is a cross-sectional view of a mounting portion of the decorative board showing one embodiment of the present invention.

FIG. 7 is an explanatory diagram of a front frame manufacturing process showing one embodiment of the present invention.

FIG. 8 is a perspective view of an outer frame showing one embodiment of the present invention.

FIG. 9 is a sectional view of an outer frame showing one embodiment of the present invention.

FIG. 10 is an exploded perspective view of a joint portion of an outer frame showing one embodiment of the present invention.

FIG. 11 is a sectional view of a joint of an outer frame showing one embodiment of the present invention.

FIG. 12 is a cross-sectional view of the upper bracket portion of the outer frame showing one embodiment of the present invention.

FIG. 13 is a perspective view of a lower bracket portion of the outer frame showing one embodiment of the present invention.

FIG. 14 is a plan cross-sectional view of a reinforcing portion of an outer frame showing one embodiment of the present invention.

[Explanation of symbols]

 1 Outer frame 2 Front frame 4 Window hole 7 Game board 37 Polyethylene plate material 50,51 Side frame plate 52 Upper frame plate 53 Lower frame plate 54 Front frame plate 69 Skin layer 70 Foam layer 72 Front frame material

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A63F 7/02

Claims (1)

(57) [Claims] 1. An outer frame (1), and a window hole for mounting a game board (7) at a substantially central portion of the outer frame (1) so as to be openable and closable at a front side thereof.
(4) The outer frame of a gaming machine having a front frame (2) formed with
When manufacturing (1), a dense skin layer (6
9), a polyethylene plate material (37) having a low-density foamed layer (70) therein is formed, and the polyethylene plate material (3) is formed.
7) is cut into predetermined dimensions to make a substantially band-shaped side frame plate (50) (51), upper frame plate (52), lower frame plate (53) and front frame plate (54), A pair of side frame plates (50) and (51) are the pair of side frame plates (50) and (51).
An upper frame plate (52) and a lower frame plate (53) are arranged on both upper and lower ends, and a front frame plate (54) is arranged on the front lower end side of the pair of side frame plates (50) and (51). Outer frame (1) in which corners of side frame plates (50) (51), lower frame plate (53), and front frame plate (54) are mutually reinforced by reinforcing metal fittings (67)
A method for manufacturing a frame of a ball game machine, characterized by manufacturing a frame.