JPH072190B2 - Launch rails for pachinko machines - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a launch rail for a pachinko machine which has a simple structure and is easy to manufacture.

[0002]

2. Description of the Related Art Conventionally manufactured launch rails are
It is known that a rail member formed by pressing a metal plate such as stainless steel into a V-shaped cross section as shown in FIG. 16 or an M-shaped cross section as shown in FIG. There is.

[0003]

However, as shown in FIG.
The launch rail 15 as shown in FIG.
Since 5 is attached to the mounting base 14, the structure is complicated because a tongue piece 16 having a hole 13 for screw insertion is provided on one side of the firing rail. Further, in the launch rail 15 as shown in FIG. 17, the reinforcement member 17 is filled in the lower portion of the launch rail 15 in order to prevent the deformation of the launch rail 15, so that it is troublesome to assemble the launch rail 15. Also,
Since such a conventional launch rail 15 is manufactured by pressing a single metal plate, it is not suitable for complicated bending work. Especially for pachinko machines,
The launch rail 15 may be curved in the longitudinal direction in order to orbit and guide the pachinko ball into the limited range of the game board. However, in the case of press working, this curve is likely to be overloaded. On the other hand, for example, in the case of the launch rail 15 as shown in FIG. 17, it is necessary to provide a relief on the side surface, so that the manufacturing tends to be complicated. Further, in such a conventional launch rail 15, a hole 13 for screw insertion provided for assembling the launch rail 15 to the mounting base 14 and a portion for running a pachinko ball are one metal plate. Because it is connected and manufactured with
If the screws are too tight when mounting the launch rail 15 to the mounting base 14, the rail will be deformed and the guide groove 18 on the launch rail 15 for causing the pachinko ball to travel in a fixed direction will be distorted. It may make you go mad. The present invention has been made in view of the above circumstances, and an object thereof is to provide a launch rail for a pachinko machine, which has a simple structure and is easy to manufacture.

[0004]

In order to achieve the above object, in the present invention, a rail member for traveling a pachinko ball is insert-molded over a synthetic resin base over the entire length in the longitudinal direction. It is characterized by that.

[0005]

The firing rail according to the present invention has a simple structure in which the rail member is embedded in the base made of synthetic resin over the entire length in the longitudinal direction by insert molding.
This is done by fitting a rail member into a mold and injecting a synthetic resin into it, which does not require complicated bending and is extremely easy. Further, since the rail member and the synthetic resin are firmly adhered and fixed to each other over the entire length in the longitudinal direction of the completed launch rail, the guide surface of the pachinko ball of the launch rail can be fixed even when mounted or used for a long period of time. It is possible to secure a stable trajectory of the pachinko ball without deformation. Further, even when the launch rail is assembled to the mounting base, if the screw insertion hole is provided in the synthetic resin base, the screw insertion hole and the rail member for moving the pachinko ball are separate. Therefore, even if the screw is too tight when mounting the launch rail to the mounting base, the rail will not be deformed.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments shown in the drawings. In the example shown in FIGS. 1 and 2, a rail member 1 having a V-shaped cross section of a synthetic resin base 2 is insert-molded. In the case of this example, the lower groove portion of the rail member 1 is embedded in the base 2 made of synthetic resin, and the base 2 made of synthetic resin is provided over the entire length in the longitudinal direction of the rail member 1.
Complete insert, ie base 2 as shown
The width of the rail member 1 is smaller than the width of the rail member 1, and the whole of the rail member 1 excluding the upper surface is tightly fixed and inserted so as to be completely wrapped in the base 2 made of synthetic resin. Therefore, as compared with the case where a part of the rail member is insert-molded, any part of the rail member 1 is closely fixed to the base 2, so that it can be used for a long period of time, not to mention mounting. As a result, the pachinko ball guide surface of the rail member 1 is not deformed, and a stable trajectory of the pachinko ball can be secured. Further, in the case of this example, the launch rail 5 includes the rail member 1 embedded in the base 2.
The insert molding is relatively easy because the number of parts is singular rather than plural.

As shown in FIG. 3, if a hole 10 is provided at an appropriate position in the center of the rail member 1, a synthetic resin for filling the lower groove portion of the rail member 1 and the base 2 are formed when the firing rail 5 is molded. The connection with the synthetic resin to be formed is improved, and thus the rail member 1 is fixed more firmly. Further, if such a hole 10 is provided in the rail member 1, it can be easily bent, and the firing rail 15 curved in the longitudinal direction can be easily manufactured.

In the example shown in FIG. 4, a pair of rail members 1 having a V-shaped cross section are symmetrically insert-molded on a base 2 made of synthetic resin. Further, in the example shown in FIG. 5, a pair of rail members 1 having a V-shaped cross section are symmetrically insert-molded on a base 2 made of synthetic resin. In each of the examples shown in FIGS. 4 and 5, the rail member 1 is firmly fixed because the one side portion 1a of the rail member 1 is deeply embedded in the base 2.

Further, as shown in FIGS. 6 and 7, if holes 11 are provided at appropriate positions on one side portion 1a of the rail member 1,
Similar to the example shown in FIG. 3, the fixing of the rail member 1 is further improved.

In the example shown in FIG. 8, a pair of narrow strip-shaped rail members 1 are symmetrically insert-molded on a base 2 made of synthetic resin. In the case of this example, as shown in FIG. 9, a groove 12 that tapers inward is provided on the surface of the rail member 1 on the base 2 side, or as shown in FIG. The rail member 1 is hooked on the synthetic resin of the base 2 and the rail member 1 is firmly fixed by providing a trapezoid in which the surface on the base 2 side is wider than the opposite surface. can do.

In the example shown in FIG. 11, a narrow band-shaped rail member 1 is mounted on a base 2 made of synthetic resin, and one side of the rail member 1 is mounted on the base 2.
A pair of left and right sides are symmetrically insert-molded so that a pachinko ball runs along the side edge of the rail member 1.

In the example shown in FIG. 12, a pair of rod-shaped rail members 1 are symmetrically insert-molded on a base 2 made of synthetic resin. In the case of this example, since the rail member 1 is rod-shaped, it is easy to bend, and for example, as shown in FIG. 13, it is easy to manufacture the launch rail 5 which is curved so that the traveling portion of the pachinko ball 9 has a curve. Is. Note that, also in the examples shown in FIGS. 4 to 12 described above, complete insert molding is performed on the base 2 over the entire length in the longitudinal direction of the rail member 1 including the portion embedded inside the base 2 made of synthetic resin. It is something.

If the bottom portion of the guide groove 8 of the launch rail 5 is formed in a flat surface as shown in FIGS. 1 to 11, the launch rail 5 is wiped off when cleaning it later. easy. The launch rail 5 shown in the figure has a structure to be attached to the mounting base 4, and is attached to the lower right position of the pachinko machine as shown in FIG. Further, the launch rail 5 according to the present invention can be attached not only via the mounting base 4 but also directly to a pachinko machine.

[0014]

As described above, the launch rail according to the present invention has a simple structure in which the rail member is embedded in the synthetic resin base by insert molding over the entire length in the longitudinal direction, and its manufacture. Is performed by fitting a rail member into a mold and injecting a synthetic resin into the mold, and can be performed extremely easily without requiring complicated bending. Further, since the rail member and the synthetic resin are firmly adhered and fixed to each other over the entire length in the longitudinal direction of the completed launch rail, the guide surface of the pachinko ball of the launch rail can be fixed even when mounted or used for a long period of time. It is possible to secure a stable trajectory of the pachinko ball without deformation. Further, even when the launch rail is assembled to the mounting base, if the screw insertion hole 3 is provided in the synthetic resin base 2 as shown in FIG. 15, the screw insertion hole 3 and the pachinko ball are provided. Since it is separate from the rail member 1 that travels, the pachinko ball that travels on the rail member 1 does not deform even if the firing rail 5 is attached to the mounting base 4 by too much screwing. There is no way to change the direction of. Further, in the present invention, the strength of the entire launch rail is maintained by the synthetic resin base, so that the rail member is rod-shaped or plate-shaped as in the example shown in FIG. It is possible to use a shape or the like that is easily bendable, which makes it possible to easily manufacture a firing rail having a curve. Further, in the present invention, the rail member is not limited to the conventionally used metal such as stainless steel, but may be a member having strong abrasion resistance such as ceramic, and may be an expensive member. Since the rail member only needs to be provided on the part where the pachinko ball comes into contact, the amount of the member used is small, and it can be manufactured inexpensively even if an expensive member is used. By using a strong member, it is possible to prolong the wear of the firing rail, which has a great wear. Although ceramics have the drawback of being brittle while having wear resistance, such drawbacks can be overcome when the whole is insert-molded with a synthetic resin base as in the present invention.
That is, in the present invention, various rail materials made of various materials can be applied.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a launch rail according to an embodiment.

2 is a cross-sectional view of the firing rail shown in FIG.

FIG. 3 is a plan view of a launch rail according to another embodiment.

FIG. 4 is a cross-sectional view of a launch rail according to a different embodiment.

FIG. 5 is a cross-sectional view of a launch rail according to a different embodiment.

FIG. 6 is a cross-sectional view of a launch rail according to another embodiment.

FIG. 7 is a cross-sectional view of a launch rail according to a different embodiment.

FIG. 8 is a sectional view of a launch rail according to a different embodiment.

FIG. 9 is a cross-sectional view of a launch rail according to a different embodiment.

FIG. 10 is a sectional view of a launch rail according to a different embodiment.

FIG. 11 is a cross-sectional view of a launch rail according to another embodiment.

FIG. 12 is a cross-sectional view of a launch rail according to another embodiment.

13 is a perspective view of the example shown in FIG.

FIG. 14 is a front view showing a mounting position of a launch rail on a pachinko machine.

FIG. 15 is a cross-sectional view showing a state in which the launch rail is attached to a mounting base.

FIG. 16 is an exploded perspective view of a conventional launch rail.

FIG. 17 is an exploded perspective view of another conventional launch rail.

[Explanation of symbols]

 1 Rail member 2 Base 4 Mounting base 5 Launch rail

Claims (1)

[Claims] 1. A launch rail for a pachinko machine, wherein a rail member for moving a pachinko ball is formed by insert molding on a base made of synthetic resin over the entire length in the longitudinal direction thereof.