JPH0490781A - Machine frame for game machine - Google Patents

Abstract

PURPOSE:To previously prevent the poor condition of deflection or the like from being generated and improve quality by forming an upper plate, both left and right side plates, and a lower molding member, individually of synthetic resin, and by forming engaging sections to be engaged with each other, on the joint surfaces of the respective members, to be positioned between the members, respectively. CONSTITUTION:A machine frame consists of an upper plate l, both left and right side plates 2, 3 and a lower molding member 4, and is formed in a square shape, as a whole. The machine frame contains the ball paying-out device and prize-winning ball tank of a pin ball machine. The upper plate 1, both the left and right side plates 2, 3, and the lower molding member 4 are respectively formed of foamed ABS resin, and on the internal surfaces of the upper plate 1 and both the left and right side plates 2, 3, a plurality of ribs 5 are formed. Both the left and right ends of the upper plate 1 are formed to be folded downward, and on the outside of the folded sections, joint surfaces 6 are formed. On the respective joint surfaces 6, three circular engaging salient sections 7 are arranged respectively saliently as engaging sections.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to machine frames for pachinko machines, slot machines, and the like.

[Conventional technology]

Generally, the machine frame of a pachinko machine is formed into a rectangular frame shape consisting of an upper plate, left and right side plates, and a lower molded material, and the ball cutting device, prize ball tank, etc. are housed inside the frame, and the front frame is is attached. This machine frame is made entirely of wooden boards because the material costs are low.

However, the wooden machine frame expands and contracts rapidly with changes in humidity, so there is a problem in that the humidity during manufacturing can cause large errors in the dimensions of the finished product. Therefore, a countermeasure has been proposed in which the machine frame is integrally made of synthetic resin that is not easily affected by humidity.

[Problem to be solved by the invention]

However, when a large member such as a pachinko machine frame is integrally formed with synthetic resin, there is a risk that the molded product will be distorted, making it impossible to manufacture a high-quality product.

In addition, a large mold is required to mold the entire machine frame, and there is also the problem that the equipment cost for manufacturing the pachinko machine increases.

The purpose of the present invention is to provide a machine frame for a game machine that can prevent defects such as distortion and improve quality, and reduce equipment costs such as molds used for resin molding. It's about doing.

[Means to solve the problem]

The present invention is a game device which has a rectangular frame shape composed of an upper plate, left and right side plates, and a lower molded material, a game device is installed inside, and a front frame with a game surface is attached to the front side of the frame. In the machine frame of the machine, the upper plate, left and right side plates, and lower molding material are each individually formed of synthetic resin, and the joint surfaces of each member are engaged with each other to determine the position between the members. The gist of this article is the machine frame of a gaming machine in which each section is formed.

[Effect]

Since the upper plate, the left and right side plates, and the lower molding material are individually molded with resin, the molded product is miniaturized and the risk of distortion occurring in each member is extremely reduced.

Furthermore, as molded products become smaller, the molds used for resin molding also become smaller.

Further, since the upper plate, the left and right side plates, and the lower molded material are positioned by the engagement of the engaging portions with each other, each member is always joined in a regular positional relationship.

〔Example〕

Hereinafter, an embodiment in which the present invention is embodied in a machine frame of a pachinko machine will be described with reference to the drawings.

FIG. 2 is a perspective view of the machine frame of the pachinko machine according to the present embodiment, viewed diagonally from the rear, and FIG. 1 is an exploded perspective view of the machine frame. As shown in these figures, the machine frame consists of an upper plate 1, left and right side plates 2 and 3, and a lower molded material 4, and has a rectangular frame shape as a whole.

Also, although not shown in the drawings, this machine frame is designed to house the ball cutting device and prize ball tank of the pachinko machine.

The upper plate 1, the left and right side plates 2 and 3, and the lower molded material 4 are each made of foamed ABS resin, and the inner surfaces of the upper plate 1 and the left and right side plates 2 and 3 (inside the machine frame) have a large number of Rib 5 (
Only the right side plate 3 is shown) is formed. Both left and right ends of the upper plate 1 are bent downward, and a joint surface 6 is formed on the outside of the bent portion. Three circular engagement protrusions 7 as engagement portions are provided on each joint surface 6 in a protruding manner.

FIG. 3 is an exploded perspective view showing the connection state between the upper plate 1 and the left side plate 2, and FIG. 5 is a sectional view showing the same connection state. As shown in these figures and FIG. 1, a joint surface 8 is formed at the upper end of the left and right side plates 2, 3 so as to correspond to the joint surface 6 of the upper plate 1, and the joint surface 8 has a circular shape. Three engaging recesses 9
is recessed. The upper plate I and the left and right side plates 2, 3 are arranged with their joining surfaces 6°8 in close contact with each other, and are joined to each other with three screws 11 through the screw holes 1o of the side plates 2.3. There is. At this time, the engaging protrusion 7 of the upper plate 1 fits into the engaging recess 9 of the left and right side plates 2 and 3, and as a result, the upper plate 1
and the left and right side plates 2, 3 are positioned. or,
A metal fitting 12 is fixed to the right side plate 3 by the screw II,
This metal fitting I2 has an upper opening/closing pin L2a projecting upward.

FIG. 5 is an exploded perspective view showing the state of connection between the left side plate 2 and the lower molded member 4. As shown in this figure and FIG.
Similarly, four circular engaging protrusions 1 serve as engaging parts.
6 are provided protruding from each other. Moreover, the left and right side plates 2,
A joint surface 17 is formed at the lower end of the molded member 3 so as to correspond to the joint surface 15 of the lower molded material 4, and each joint surface 17 is provided with four circular engaging recesses 18. The lower molded material 4 and the left and right side plates 2 and 3 are arranged with the joint surfaces 15 and I7 in close contact with each other, and are connected to each other by four screws 20 through the screw holes 19 of the side plates 2 and 3. It is joined. At this time, similarly to the upper plate 1 described above, the engagement protrusion 16 of the lower molded material 4 fits into the engagement recess 18 of the left and right side plates 2 and 3, and as a result, the lower molded material 4 and the left and right side plates 2 , 3.

A lower opening/closing pin 4a is integrally formed on the right side of the lower molded material 4 facing upward, and a front frame 21 (with a gaming surface) is provided between the lower opening/closing pin 4a and the upper opening/closing pin 12a.
(indicated by a phantom line) is engaged. This front frame 21
is supported so that it can be opened and closed relative to the machine frame, and when closed, it closes the front of the machine frame.

Since the machine frame of the pachinko machine constructed in this manner is made of synthetic resin, it is hardly affected by humidity.

Therefore, high dimensional accuracy can always be ensured regardless of the humidity during manufacturing. Also, upper plate 1, left and right side plates 2, 3,
Since the lower molding material 4 and the lower molding material 4 are individually molded with resin, the molded product is miniaturized, and the possibility that each member 1 to 4 will be distorted is extremely reduced. As a result, a high-quality machine frame without distortion can be manufactured.

Furthermore, as molded products become smaller, the molds used for resin molding also become smaller, so equipment costs for manufacturing pachinko machines can be reduced.

Furthermore, the upper plate 1, the left and right side plates 2, 3, and the lower molded material 4
are positioned by the engagement of the engaging protrusions 7 and 16 with the engaging recesses 9 and 18, so the members 1 to 4 are always joined in a regular positional relationship. Therefore, each member 1 to 4 of the machine frame
It is possible to prevent problems such as assembly defects caused by dividing into parts.

Moreover, since the upper plate 1, the left and right side plates 2, 3, and the lower molded material 4 are joined with their joint surfaces 6, 8, 15.17 in close contact with each other, each member 1 to 4 is naturally orthogonal. is maintained. Therefore, members such as metal fittings conventionally used to orthogonally intersect each member 1 to 4 can be omitted, and the structure of the machine frame can be simplified.

On the other hand, there are two types of machine frames for pachinko machines, large and small, with vertical and horizontal dimensions differing by 10 mm, but according to the machine frame of the pachinko machine of this embodiment, only the upper plate 1 and the lower molding material 4 need to be changed. can correspond to each standard. Assuming that the lower molding material 4 shown in FIG. 5 is used for a small-sized pachinko machine, the lower molding material 4 used for a large-sized pachinko machine would have an edge of the bottom part 13 as shown in FIG. The thickness tl of the portion, the height jz+j3 of the engaging protrusion 16, and the left and right lengths are each increased by 10 mm. Similarly, the left and right length of the upper plate 1 is also increased by 10 mm. If the lower molded material 4 and the upper plate 1 whose dimensions are set in this way are used, the vertical dimension of the machine frame will increase by 10 mm because the left and right side plates 2 and 3 will be located above the two sides. ,3 interval is 1
Since it can be widened by 0 mm, the horizontal dimension of the machine frame increases by 10 mm, making it possible to meet the standards for large-sized pachinko machines. Therefore, in the machine frame of this embodiment, when manufacturing machine frames with different standards, the left and right side plates 2 and 3 can be used in common, reducing the number of parts when manufacturing these two types of pachinko machines. I can do it.

Note that the present invention is not limited to the above-mentioned embodiment, and for example, although the above embodiment is embodied as a frame for a pachinko machine, it may also be embodied as a machine frame for other gaming machines, such as a slot machine. Good too.

Further, in the above embodiment, three or four engaging protrusions 7° 16 and engaging recesses 9, 18 for positioning are provided for one connecting surface 6, 8° 1.5.17, but even if only one is provided, good. Further, the shapes of the engaging protrusions 7, 16 and the engaging recesses 9.degree. 18 may also be square or triangular instead of circular.

Furthermore, in the above embodiment, the metal fitting 12 was manufactured separately from the right side plate 3, or the metal fitting 12 was made together with the right side plate 3.
It may be integrally molded with S resin.

〔Effect of the invention〕

As described in detail above, according to the machine frame of the gaming machine of the present invention, it is possible to prevent defects such as distortion and improve quality, and to reduce equipment costs such as molds used for resin molding. It has the excellent effect of reducing

[Brief explanation of drawings]

Figure 1 is an exploded perspective view of the machine frame of the pachinko machine of the example, Figure 2
The figure is a perspective view of the machine frame in the assembled state, Figure 3 is an exploded perspective view showing the connection state between the upper plate and the left side plate, Figure 4 is a sectional view also showing the connection state, and Figure 5 is the left side plate and the left side plate. FIG. 6 is an exploded perspective view showing the state of connection with the lower molding material, and FIG. 6 is a perspective view showing the lower molding material used in machine frames of different standards. l is the upper plate, 2 is the left side plate, 3 is the right side plate, 4 is the lower molding material,
6, 8, 15, 17 are joint surfaces, 7, 16 are engagement protrusions as engagement parts, 9, 18 are engagement recesses as engagement parts, 21
is the front frame.

Claims (1)

[Claims] 1. It has a rectangular frame shape composed of an upper plate (1), left and right side plates (2, 3), and a lower molded material (4), and a gaming device is installed inside, and the front side of the frame is has a front frame with a playing surface (2
In the machine frame of the gaming machine to which 1) is attached, the upper plate (1), the left and right side plates (2, 3), and the lower molding material (4) are individually formed of synthetic resin, and each Joint surfaces (6, 8, 15, 17) of members (1 to 4)
In addition, there are engaging portions (7) that engage with each other to determine the position of the members.
, 9, 16, 18) respectively.