JPH0743597U - Frame structure of ball game machine - Google Patents

Abstract

(57) [Abstract] [Purpose] Using polyethylene sheet material, it can be easily and inexpensively manufactured with existing manufacturing equipment, sufficient strength can be secured, and the material can be easily recycled. Provide a frame structure for a ball game machine that can also contribute to environmental protection. [Structure] The frame structure of the ball game machine is an outer frame 1 and a front and rear pivotably pivotally attached to the outer frame 1 and a game board approximately at the center.
7 Frames 1 and 2 are provided with a front frame 2 having window holes 4 for mounting, and a polyethylene plate 37 having a high-density skin layer on the surface side and a low-density foam layer inside. It is a thing.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a frame structure of a ball game machine such as a pachinko machine and an arrangement ball machine.

[0002]

[Prior art]

 BACKGROUND ART Ball game machines such as pachinko machines and arranging ball machines are equipped with an outer frame, a front frame that is pivotally attached to the front side of the outer frame so as to be openable and closable, and has a window hole in a substantially central portion, and a window of the front frame. It is equipped with a game board detachably attached to the hole, and an annular guide rail is provided on the game board, and various games such as obstacle nails, winning devices, display lamps, etc. are surrounded by this guide rail. Parts are installed.

The outer frame and the front frame of the ball game machine are conventionally constructed by using a veneer plate obtained by laminating a plurality of veneers, and bonding or processing the veneer plate into a predetermined shape, or For example, a synthetic resin may be integrally molded into a predetermined shape.

[0004]

[Problems to be solved by the device]

 Conventionally, the outer and front frames are most often made of plywood, but recently it has become difficult to obtain natural timber from the standpoint of forest resource protection or environmental protection. Along with this, the manufacturing cost tends to increase.

On the other hand, synthetic resin products are easy to mold, but on the other hand, they use a large amount of synthetic resin itself, and thus have the drawback of increasing manufacturing costs. In addition, in order to reduce the amount of synthetic resin used, the overall thickness should be made as thin as possible and the required parts should be reinforced with reinforcing ribs, but in that case the front frame becomes structurally very complicated, There is a drawback that the manufacturing cost of the mold is increased.

In view of such conventional problems, the present invention can easily and inexpensively manufacture polyethylene plate material using existing manufacturing equipment, secure sufficient strength, and only recycle the material. It is an object of the present invention to provide a frame structure for a ball game machine that is easy to play and can contribute to the protection of forest resources and the environment.

[0007]

[Means for Solving the Problems]

 The present invention according to claim 1 includes an outer frame 1, a front frame 2 pivotably attached to the front side of the outer frame 1 so as to be openable and closable, and a window hole 4 for mounting a game board 7 formed at a substantially central portion thereof, etc. In the ball-ball game machine having the above, the frames 1 and 2 are constituted by the polyethylene plate 37 having the high-density skin layer 69 on the surface side and the low-density foam layer 70 inside.

Further, the present invention according to claim 2 is the device according to claim 1, wherein the outer frame 1 and the front side of the outer frame 1 are pivotally attached so as to be openable and closable, and the game board 7 is mounted at a substantially central portion. In a ball game machine provided with a front frame 2 having window holes 4 formed therein, a polyethylene plate material 37 having a high-density skin layer 69 on the surface side and a low-density foam layer 70 inside is provided in front. The frame 2 is configured, and a decorative plate 47 is attached to the front surface of the polyethylene plate material 37.

Further, the present invention according to claim 3 is the device according to claim 1, wherein the outer frame 1 includes a pair of left and right side frame plates 50, 51, and upper and lower sides of the pair of side frame plates 50, 51. An upper and lower pair of upper and lower frame plates 52 and 53 for connecting both ends and a front frame plate 54 for connecting between front and lower ends of the pair of side frame plates 50, 51 are provided. Is composed of a polyethylene plate 37.

[0010]

[Action]

 According to the present invention as set forth in claim 1, the frames 1 and 2 are constituted by the polyethylene plate 37 having the high-density skin layer 69 on the front surface side and the low-density foam layer 70 inside, respectively. Since 37 itself is very easy to machine, the workability during manufacturing and the finish of frames 1 and 2 after processing are very good.

Further, the polyethylene plate 37 may be simply machined, and the existing manufacturing equipment used for manufacturing a conventional wooden frame can be used as it is, though it is made of synthetic resin. Therefore, it is possible to manufacture the frames 1 and 2 without using a complicated mold, etc., and it is easier and cheaper to manufacture than the conventional synthetic resin products. You can

Moreover, the polyethylene plate 37 has a sandwich structure in which the foam layer 70 inside is sandwiched from both sides by the skin layer 69 having high density on the surface side, high specific gravity, bending strength and hardness It is possible to secure a proper composition, and at the same time, it is easy to drive a nail into the polyethylene plate 37.

In particular, the polyethylene plate material 37 has excellent wear resistance and impact resistance as its properties, and has a small friction coefficient and excellent self-lubricating property. Compared with the synthetic resin made of, the frames 1 and 2 are much less damaged and the durability is significantly improved. Furthermore, since the polyethylene plate material 37 is a thermoplastic resin, it is easy to use the recycled material after disposal, and it can contribute to the protection of forest resources and the environment.

According to the second aspect of the present invention, the front frame 2 is constituted by the polyethylene plate 37 having the high-density skin layer 69 on the surface side and the low-density foam layer 70 inside, and the polyethylene 2 is made of polyethylene. Since the decorative plate 47 is attached to the front surface of the plate-making material 37, the finish of the front surface of the front frame 2 can be made very good in addition to the above-mentioned function.

Further, in the present invention as set forth in claim 3, the outer frame 1 has a pair of left and right side frame plates 50, 51 and a pair of upper and lower upper frame plates for connecting the upper and lower ends of the pair of side frame plates 50, 51. 52 and a lower frame plate 53, and a front frame plate 54 that connects the front lower ends of the pair of side frame plates 50, 51, and each frame plate 50 to 54 is composed of the polyethylene plate material 37. The same effect can be obtained for the outer frame 1.

[0016]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 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. In FIG. 1 and FIG. 2, 1 is a rectangular outer frame, 2 is a front frame, and this 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 openable and closable, and approximately at the center. A window hole 4 is formed. Reference numeral 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 pivotally attached so as to be openable and closable. 7 is 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.

A guide rail 8 for guiding the game balls is provided on the front surface of the game board 7, and a variable symbol display device 9, a lower prize winning device 10, a left winning device 11,12, a right winning device 13,14, a winning device. Various game parts such as the ball openings 15 and 16, the outer decorations 17 and 18 and the inner decorations 19 and 20 are mounted, and a large number of obstacle nails 21 are provided.

An upper plate 22 is mounted on the front plate 6, and a lower plate 23 and an operating handle 25 for a launcher 24 are provided on the lower portion of the front frame 2. The launching device 24 includes an operating handle 25 and a launching motor 26 mounted on the front and rear of the front frame 2. 27 is a lower plate passage that guides the prize balls to the lower plate 23, and 28 is a fastening lever for the back set plate, two of which are provided on the left and right of the mounting frame 29. Reference numeral 30 is a positioning pin, and two positioning pins are provided on the upper portion of the mounting frame 29.

Reference numeral 31 is a back set plate for pressing and fixing the game board 7 in the mounting frame 29. A window hole 32 is formed in the center and two left and right holes 33 are formed in the upper portion. 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 thereof 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 configured as shown in FIGS. 3 and 4 using a polyethylene plate member 37 having a structure as shown in FIG. The front frame 2 is formed by cutting a polyethylene plate member 37 into a rectangular shape and forming a rectangular window hole 4 in a substantially central portion thereof. That is, the front frame 2 is 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. A rectangular window 4 is formed between ~ 41. The upper frame 38 has a mounting hole 42 for the indicator lamp, the lower frame 39 has a mounting hole 43 for the launching device 24, a mounting hole 44 for the lower tray passage 27, and a through hole 45 for wiring. Key holes 46 are formed in the 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 surface, and the decorative plate 47 finishes the front surface side. The decorative plate 47 is made of thin synthetic resin, and as shown in FIG. 6, is integrally provided with mounting pins 48 which are dispersed and arranged at appropriate positions on the rear side, and the mounting pins 48 are provided 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 corresponding to the window hole 4 is attached by nails, screws, etc., and the game board 7 is detachably fitted into the mounting frame 29 from the rear side. .

As with the front frame 2, the outer frame 1 is made of a polyethylene plate material 37 and is formed into a rectangular frame shape as shown in FIGS. 8 and 9. That is, as shown in FIGS. 8 and 9, the outer frame 1 includes a pair of left and right side frame plates 50 and 51, and an upper frame plate that connects the upper and lower ends of the pair of side frame plates 50 and 51. 52 and a lower frame plate 53, and a front frame plate 54 that connects the front lower ends of the pair of side frame plates 50, 51, to each other. The front frame 2 is mounted so that it can be opened and closed from the side.

Each of the frame plates 50 to 54 constituting the outer frame 1 is a strip plate shape obtained by cutting the polyethylene plate material 37 into strips having a predetermined length and width. Then, the pair of side frame plates 50, 51, the upper frame plate 52, and the lower frame plate 53 have the same structure, for example, as shown in FIGS. 10 to 12 where the side frame plates 50, 51 and the upper frame plate 52 are joined. Uneven parts 55 and 56 are formed on both ends, and with both uneven parts 55 and 56 meshed at right angles, from the upper frame plate 52 and lower frame plate 53 side to each side frame plate 50, 51 side. They are joined together by hammering in the nails 57.

As shown in FIG. 13, the front end of the lower frame plate 53 projects forward from the side frame plates 50 and 51 by the thickness of the front frame plate 54, and is located on the upper surface of the front end portion 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 so as to be in contact with each other. The lower frame plate 53 and the front frame plate 54 are fixed to each other by nails 58 that are driven from the lower frame plate 53 side to the front frame plate 54 side, and the left and right ends of the front frame plate 54 are each side frame plate by the nails 59. It is fixed at 50,51.

At the corners of 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. An L-shaped mounting base portion 62 of the bracket 60 is fixed by screws 63 straddling both of them. As shown in FIGS. 8 and 13, a mounting base portion 65 of a lower bracket 64 is fixed to a corner portion between the left side frame plate 50 and the front frame plate 54 with a screw 66. Therefore, the upper and lower sides of the left side frame plates 50, 51 are reinforced by the mounting bases 62, 65 of the brackets 60, 64.

The corners of the right side frame plate 51, the upper frame plate 52, and the lower frame plate 53 are respectively reinforced with reinforcing metal fittings (not shown), and the side frame plates 50, 51 and the lower frame plate 53 are As shown in FIG. 14, reinforcing metal fittings 67 are fixed to the corners of the front frame plate 54 with screws 68, and the reinforcing metal fittings 67 reinforce each other.

As shown in FIG. 5, the polyethylene plate member 37 has a skin layer 69 having a high density, a high specific gravity, a high bending strength and a high hardness on the surface side, and a foam layer 70 having a low density on the inner side. It The polyethylene plate material 37 has a thickness of, for example, about 19 mm, and the surface side 2 to 8 mm is the skin layer 69, and the remaining 15 to 3 mm is the foam layer 70, or the polyethylene plate material 37. Of the total thickness, the skin layer 69 is about 1/3 on both sides and the remaining 1/3 is the foam layer 70.

The numerical value of the polyethylene plate material 37 is an example, and the boundary portion between the skin layer 69 and the foam layer 70 is not clear and is set as one guide. Therefore, regarding the thickness ratio of the skin layer 69 and the foam layer 70 of the polyethylene plate 37, the polyethylene plate 37 as a whole should be considered in consideration of the overall strength of the outer frame 1 and the front frame 2. It is desirable to set the specific gravity as about 0.8 ± 0.15 g / cm ³ .

When manufacturing the front frame 2 of this embodiment, as shown in FIG. 7, first, a long polyethylene plate material 37 is molded using an extruder 71 or the like using a polyethylene material. Of course, the thickness ratio of the skin layer 69 and the foam layer 70 of the polyethylene plate material 37 is predetermined before molding by the extruder 71 or the like, and the polyethylene plate material 37 having the thickness ratio is molded.

The polyethylene plate 37 has very good machinability similar to ordinary wood and can be handled in the same manner as wood, so after that, the existing front frame manufacturing line for wood is used. Then, the front frame 2 is finished from the polyethylene plate 37.

That is, the polyethylene plate material 37 is sent to the front frame manufacturing line, and first, the polyethylene plate material 37 is appropriately cut into a predetermined size by a cutting machine or the like to form a substantially rectangular front frame material 72. Then, if a rectangular front frame material 72 is formed, then the front frame material 72 is set on a processing machine such as a router, and then a rectangular window hole 4 is punched in the substantially central portion of the front frame material 72. The other mounting holes 42 for the indicator lamp, the mounting hole 43 for the launching device 24, the mounting hole 44 for the lower dish passage 27, the through hole 45 for wiring, etc. are drilled at predetermined locations.

As a result, the plate-shaped front frame 2 integrally including the upper frame portion 38, the lower frame portion 39, and the pair of left and right side frame portions 40 and 41 so as to surround the window hole 4 is formed. As shown in FIG. 6, the mounting pins 48 of the decorative plate 47 are inserted into the mounting holes 49 of the front frame 2, and the decorative plate 47 is attached to the front side of the front frame 2 as shown in FIG. Complete by attaching the mounting frame 29 to the side with nails or screws.

The decorative plate 47 is attached to the front frame 2 by the mounting pins 48, and as shown by phantom lines in FIG. 6, a bent portion 47a surrounding the front frame 2 is provided on the peripheral edge of the decorative plate 47. The bent part 47a is fixed to the front frame 2 with a nail or the like, the peripheral part of the decorative plate 47 is appropriately pressed with a pressing member, and is attached by a screw, or is adhered by an adhesive means such as high-frequency adhesive. A structure may be adopted.

When manufacturing the outer frame 1, the polyethylene plate 37 is used similarly to the front frame 2, and the outer frame 1 is removed from the polyethylene plate 37 using the existing outer frame manufacturing line for wood. Manufacture. That is, in the case of the outer frame 1, since the side frame plates 50, 51, the upper frame plate 52, etc. are made of a strip-shaped material, the polyethylene plate material 37 after molding is cut by a suitable cutting machine such as a slitter. And cut into strips of a predetermined width.

Next, this band-shaped material is sequentially cut into a predetermined length by a cutting machine to make frame board materials such as the side frame boards 50, 51 and the upper frame board 52, and then both end portions of each frame board material. The uneven parts 55 and 56 are processed.

When each frame plate material is formed in this way, as shown in FIGS. 11 and 12, the concave and convex portions 55, 56 of the side frame plates 50, 51, the upper frame plate 52, and the lower frame plate 53 are perpendicular to each other. They are formed into a rectangular shape by meshing with each other, and each joint is fixed by a nail 57. Then, the front frame plate 54 is attached, and the brackets 60, 64, the reinforcing metal fittings 67, etc. are appropriately attached, whereby the outer frame 1 as shown in FIGS. 8 and 9 is completed. A decorative plate may be attached to the front end surface of the lower frame plate 53 and the front surface of the front frame plate 54.

As described above, if the outer frame 1 and the front frame 2 are formed by using the polyethylene plate member 37, the polyethylene itself is inexpensive, which is very economical. Compared to other synthetic resin materials, polyethylene plate material 37 is much easier to machine like cutting, drilling, and cutting, just like wood, and the workability during manufacturing and the finish after processing are not Always good.

Moreover, since the polyethylene plate 37 is used, it suffices to perform machining such as cutting, drilling, and cutting on the plate 37, and since it can be manufactured by the same processing as conventional wood, it can be manufactured by conventional wood. The existing manufacturing equipment used to manufacture the outer frame 1 and the front frame 2 can be used as it is. Despite being a kind of synthetic resin, complicated molds etc. are completely unnecessary. Therefore, the outer frame 1 and the front frame 2 using the polyethylene plate member 37 have an advantage that they can be implemented easily and at low cost, as compared with the conventional synthetic resin products.

Furthermore, 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 front surface side, it has sufficient rigidity as compared with other foam materials. At the same time, the nails can be easily driven into the polyethylene plate 37.

Further, since the polyethylene plate 37 has a skin layer 69 having a high density on the surface and having a large specific gravity, bending strength and hardness, the skin layer 69 can sufficiently prevent the surface from being damaged. The strength and the like of the plate-making material 37 can be easily adjusted by appropriately changing the thickness ratio of the skin layer 69 and the foam layer 70. In particular, polyethylene has very good wear resistance and impact resistance, and also has a small coefficient of friction and excellent self-lubricating properties, so compared to conventional products made of wood or other synthetic resins, The outer frame 1 and the front frame 2 can be damaged very little, and the durability is significantly improved.

Incidentally, in this example, as the polyethylene plate material 37, a material having a specific gravity of 0.8 g / cm ^{3 or more} , a bending strength of 90 to 120 kg / cm ² , and a hardness of 3.6 to 4 ton / cm ² was used. . However, it is not limited to this. As the polyethylene, high density polyethylene, medium density polyethylene, low density polyethylene 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 brackets 60, 64, reinforcement By removing the metal fittings 67 and nails, it can be reused as a polyethylene material, and it is very easy to recycle. In this case, since polyethylene is a thermoplastic synthetic resin, it softens only by heating it slightly, so if you remove the brackets 60, 64, reinforcing metal fittings 67, nails, etc. in the heated state, they can be pulled out relatively easily. it can. Since polyethylene has a specific gravity smaller than that of water, if it is crushed or crushed, it can be easily selected from other materials by specific gravity selection with water.

In addition, in the above-mentioned embodiment, the case where the sheet is made of one sheet of polyethylene plate 37 has been described, but the present invention is not limited to this. For example, a thin layer having the skin layer 69 and the foam layer 70 is provided. It is also possible to use a plurality of plate-shaped polyethylene plate members 37 and laminate each of the polyethylene plate members 37 in the thickness direction. In that case, the polyethylene plate material 37 of each layer may be integrated by an adhesive material, high-frequency adhesion, heat welding, or the like, or may be connected by a rivet or the like.

Further, it goes without saying that the outer frame 1 and the front frame 2 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, but it goes without saying that only one of the outer frame 1 and the front frame 2 may be used. Further, the pachinko machine has a frame 29 such as an outer frame 1 and a front frame 2 as well as a mounting frame 29. The mounting frame 29 may also be made of a polyethylene plate material 37.

Since the outer frame 1, the front frame 2 and the front frame 2 side are structurally simple in shape, injection molding may be performed using a polyethylene material using a mold. In that case, the front frame 2 and the mounting frame 29 can be integrally formed. However, if injection molding is used, a separate mold is required, and the existing existing manufacturing equipment cannot be used as it is, resulting in a problem of increased cost.

[0046]

[Effect of device]

 According to the present invention as set forth in claim 1, an outer frame 1 and a front frame which is pivotally attached to the front side of the outer frame 1 so as to be openable and closable, and has a window hole 4 for mounting the game board 7 formed at a substantially central portion thereof. In a ball-playing machine equipped with 2 etc., the frames 1 and 2 are composed of a polyethylene plate material 37 having a high-density skin layer 69 on the surface side and a low-density foaming layer 70 inside, respectively. Since the machine work of the plate material 37 made of chilen is very easy, the workability at the time of manufacture and the finish of the frames 1 and 2 after processing are very good.

Further, the polyethylene plate material 37 may be simply machined, and the existing manufacturing equipment used for manufacturing the conventional wood frame can be used as it is, though it is made of synthetic resin. Therefore, it is possible to manufacture the frames 1 and 2 without using a complicated mold, etc., and it is easier and cheaper to manufacture than the conventional synthetic resin products. You can

Moreover, the polyethylene plate material 37 has a sandwich structure in which the foam layer 70 inside is sandwiched from both sides by the skin layer 69 having a high density on the surface side and having high specific gravity, bending strength and hardness. It is possible to secure a proper composition, and at the same time, it is easy to drive a nail into the polyethylene plate 37. In particular, the polyethylene plate material 37 has excellent wear resistance and impact resistance as its properties, and has a small friction coefficient and excellent self-lubricating property. The frames 1 and 2 themselves are much less damaged and the durability is significantly improved compared to the manufactured products.

Furthermore, since the polyethylene plate material 37 is a thermoplastic resin, it is easy to use the recycled material after disposal, and there is an advantage that it can contribute to the protection of forest resources and the environment.

Further, the present invention according to claim 2 is the device according to claim 1, wherein the outer frame 1 and the front side of the outer frame 1 are pivotally attached so as to be openable and closable, and the game board 7 is mounted at a substantially central portion. In a ball game machine provided with a front frame 2 having window holes 4 formed therein, a polyethylene plate material 37 having a high-density skin layer 69 on the surface side and a low-density foam layer 70 inside is provided in front. Since the frame 2 is configured and the decorative plate 47 is attached to the front surface of the polyethylene plate member 37, the finish of the front surface of the front frame 2 can be made very good in addition to the above effects.

Further, the present invention according to claim 3 is the device according to claim 1, wherein the outer frame 1 includes a pair of left and right side frame plates 50 and 51, and upper and lower sides of the pair of side frame plates 50 and 51. An upper and lower pair of upper and lower frame plates 52 and 53 for connecting both ends and a front frame plate 54 for connecting between front and lower ends of the pair of side frame plates 50, 51 are provided. Since the plate member 37 is made of polyethylene, the same effect can be obtained for the outer frame 1.

[Brief description of drawings]

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

FIG. 2 is a perspective view of a pachinko machine according to an embodiment of the present invention in an open state.

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

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

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

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

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

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

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

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

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

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

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

FIG. 14 is a plan cross-sectional view of the hood portion of the reinforcing portion of the outer frame according to the embodiment of the present invention.

[Explanation of symbols]

 1 Outer frame 2 Front frame 4 Window hole 7 Gaming board 37 Polyethylene plate 38 Upper frame 39 Lower frame 40,41 Side frame 47 Decorative plate 50,51 Side frame 52 Upper frame 53 Lower frame 54 Front frame Board 69 Skin layer 70 Foam layer

Claims (3)

[Scope of utility model registration request] 1. An outer frame (1), and a front part of the outer frame (1), which is pivotally attached to the front side of the outer frame (1) so as to be freely openable and closable and has a window hole (4) for mounting a game board (7) formed at a substantially central portion thereof. In a ball game machine equipped with a frame (2) and the like, a polyethylene plate material (37) having a high-density skin layer (69) on the surface side and a low-density foam layer (70) inside
A frame structure for a ball game machine characterized in that the frames (1) and (2) are configured by 2. An outer frame (1) and a window hole for mounting a game board (7), which is pivotally attached to the front side of the outer frame (1) so as to be freely openable and closable and approximately at the center.
In a ball game machine having a front frame (2) on which (4) is formed, a polyethylene layer having a high-density skin layer (69) on the surface side and a low-density foam layer (70) inside The front frame (2) is constituted by the plate material (37), and a decorative plate (47) is attached to the front surface of the polyethylene plate material (37).
Frame structure of the ball game machine described in. 3. The outer frame (1) is a pair of left and right side frame plates (50) (51).
A pair of upper and lower frame plates (52) and (53) connecting the upper and lower ends of the pair of side frame plates (50) and (51), and a pair of side frame plates (5
0) and (51) front frame plate (54) for connecting between the front and lower ends, each frame plate (50) ~ (54) is made of a polyethylene plate material (37), characterized in that The frame structure of the ball game machine according to Item 1.