JPS5816911B2 - Pachinko ball lifting device - Google Patents

Description

Detailed Description of the Invention The present invention provides a pachinko machine in which an abrasive is mixed with pachinko balls, this mixture is introduced into a lifting pipe, and the pachinko balls are cleaned while being lifted by rotation of a spiral body provided in the pipe. This invention relates to a ball lifting device.

As an example of a device for cleaning pachinko balls while lifting them, as shown in Japanese Patent Publication No. 55-4546, a spiral body is inserted into a lifting pipe, and by rotating this spiral body, the pachinko balls are lifted and There is a device that cleans pachinko balls with abrasives mixed into them.

However, in the conventional type, the outer diameter of the spiral body inserted into the lift pipe is relatively small and uniform.

For this reason, the gap between the inner circumferential surface of the lifting pipe and the spiral body is large, and while it has the advantage of strong stirring action and high cleaning effect, it also has the disadvantage of having a low ability to lift balls.

Furthermore, as described in Japanese Patent Publication No. 55-454.6, for example, a device in which a lifting pipe is bent downward into an arc shape and pachinko balls are fed to the bent end does not have the problem of pachinko balls getting caught. Although it is small, it has the drawbacks that the lifting force is weak because the outer diameter of the helical body is uniform, and that it is not only expensive but also difficult to manufacture.

The present invention was made with the aim of solving the drawbacks of the conventional devices and providing a lifting device with strong lifting power and cleaning power. The lower end opening of the lift pipe is made to face into the sphere storage section where the mixture is stored, and the lift pipe is composed of a lower end tapered pipe and an upper straight pipe, and the spiral body inserted into the lift pipe is connected to the taper. It is characterized by being composed of a conical first spiral body that projects downward from inside the pipe and generates a strong lifting force, and a second spiral body that is located inside the straight pipe and generates a strong stirring and cleaning force.

The invention will now be described with reference to illustrated embodiments.

As shown in FIG. 1, a pachinko ball lifting device 1 according to the present invention is arranged at the end of a row of pachinko machines in which a plurality of pachinko machines 2 are arranged side by side. , a ball storage section 4 provided at the downstream end of a collection gutter 3 for collecting pachinko balls discharged from each pachinko machine 2, a lifting pipe 5 and an abrasive circulation gutter 6. The bottom edge of

The feeding pipe 5 has a tapered lower end pipe 5a facing the ball storage part 4 and a dog-like diameter at the lower end, and a flange part 5 at the upper part of this tapered pipe.
A spiral body 7 is inserted into this lifting pipe 5.

The spiral body 7 includes a first spiral body 8 in the shape of a truncated cone located within the tapered pipe 5a and protruding downward from the lower end opening 9, and a second spiral body located within the straight pipe 5b connected to the upper end of the first spiral body. It consists of a spiral body 8', and a driving source 10 for rotating the spiral body 70 is distributed at the upper end of the lifting pipe 5.

A sorting device 12 is provided at the upper end opening 11 of the lifting pipe 5.
is connected so that the sorting device 12 faces the inlet 6' of the abrasive circulation gutter 6, and each pachinko machine 2...
The sloping upper end of the ball supply gutter 13 for supplying balls is connected to ....

The ball storage section 4 temporarily stores dirty pachinko balls A from each pachinko machine 2, and also provides abrasive material B (discharged from the abrasive material circulation gutter 6) to the pachinko balls A. For example, small particulate materials such as synthetic resin and rubber are mixed in.
A deep bottom part 14 in which a mixture of pachinko balls A and abrasive material B is stored at a certain depth, and a bottom inclined surface into which pachinko balls A and abrasive material B from the collection gutter 3 are introduced while being mixed. It consists of an introduction part 15.

Thus, the truncated conical first helix 8 of the helix I is
As is clear from the figure, it consists of a shaft portion 8a and a flat spiral blade 8b that is wound around the shaft portion 8a and is wider toward the bottom.

The maximum diameter of the first helical body 8, that is, the diameter at the lowermost end, is set larger than the inner diameter d of the straight pipe 5b of the lift pipe 5, and there is a gap between the outer periphery of the spiral blade 8b and the inner periphery of the tapered pipe 5a. A gap C is formed.

In this embodiment, this gap C is slightly larger than the diameter of the pachinko ball A, so that a pachinko ball does not get caught in this gap C without a bridging phenomenon.

Note that it is preferable to use a stainless steel pipe as the lifting pipe 5.

The second helical body 8' is formed by twisting the wire 16 in the same direction as the twisting direction of the first helical body 8 to form a helical shape having an outer diameter smaller than the minimum diameter of the first helical body 8, and the lower end thereof is a connecting member. 19
It is connected to the upper end of the first helical body 8 via the upper end thereof, and the upper end thereof is connected to a drive source 10, for example, an output shaft 10' of a geared motor.

Therefore, the present pachinko ball lifting device having the above configuration is as follows:
When the drive source 10 operates and the first spiral body 8 and the second spiral body 8' rotate integrally, the mixture of dirty pachinko balls A and abrasive material B piled up in the deep bottom part 14 of the ball storage part 4 is transferred to the first spiral body 8 and the second spiral body 8'. The tapered pipe 5 is lifted up by the spiral wings 8b of the spiral body ″8.
It enters the tube from the lower end opening 9 of a.

Since the first spiral B+4 has a truncated conical shape and the diameter is larger toward the bottom, the lifting force does not decrease even above the tapered pipe 5a, but rather acts stronger.

In particular, as in the embodiment, the maximum diameter of the first spiral body 8 is the straight pipe 5b.
If the inner diameter d is set larger than the inner diameter d, the pachinko balls can be effectively transported into the straight pipe 5b.

Further, between the inner periphery of the tapered tube 5a and the outer periphery of the first spiral body 8, a gap C is formed which is slightly thicker than the diameter of the pachinko ball A (for example, about 1.5 times the diameter of the pachinko ball). Therefore, there is no risk of pachinko balls getting caught in this gap,
Moreover, since the lifting force by the first spiral body 8 is large, the pachinko balls A and the abrasive material B are less likely to fall through the gap C.

Therefore, wear of the tapered tube 5a due to pachinko balls being bitten or falling can be prevented.

Of course, the gap C can also be set smaller than the diameter of the pachinko ball A.

In this case, at least the helical blades 8b of the first helical body 8 are preferably made of urethane or other soft or semi-hard synthetic resin, or a flexible material such as rubber.

This flexibility allows the pachinko ball to be lifted up without being deformed during normal lifting, and when the pachinko ball is caught between the pipe 5 and the spiral blade 8b, it is lifted up or down by the rotational force of the spiral body. The shape is set to such an extent that it deforms and allows the pachinko ball to escape.

By doing so, it is possible to prevent the pachinko ball from getting stuck.

If the first spiral body made of this flexible material is used in the illustrated embodiment, it becomes possible to more completely prevent pachinko balls from staying due to the bridging phenomenon.

In this way, when the mixture of pachinko balls A and abrasive material B rises inside the tapered pipe 5a and enters the straight pipe 5b, the pachinko balls A and abrasive material B are stirred by the rotation of the second spiral body 8'. Abrasive material B cleans dirt and rust adhering to the surface of pachinko ball A and polishes it.

This stirring and cleaning action continues as long as the mixture remains in the pipe 5, and the pachinko balls A are sufficiently cleaned while rising to the upper end opening 11.

When the mixture rises to the upper end opening 11 of the lift pipe 5, it flows out from the upper opening 11 and flows into the sorting device 12.

The sorting device 12 is for sorting the pachinko balls A and the abrasive material B, and is configured by, for example, a cage 20 whose gap is larger than the outer diameter of the abrasive material B and smaller than the diameter of the pachinko ball, tilted slightly downward. .

When the mixture of pachinko balls A and abrasive material B is placed on the tray 20, the abrasive material B, rust, dirt, and other small objects fall from the gaps between the baskets 200 onto the tray 21, and only the pachinko balls A are sorted. The ball replenishment tank 13 is connected to the lower end of the slope of the bamboo basket 20.

The abrasive material B that has fallen into the tray 21 is again supplied to the ball storage section 4 by the abrasive material circulation gutter 6.

- The pachinko balls A that have flown down to the real ball supply gutter 13 are supplied to each pachinko machine 2 as prize balls by the ball supply device 22 provided for each pachinko machine 2.

In summary, the present invention consists of a lifting pipe consisting of a tapered pipe at the lower end and a straight pipe at the upper end thereof, and a spiral body in the lifting pipe is connected to a truncated cone-shaped first spiral located in the tapered pipe and a straight pipe in the straight pipe. Since it is composed of a second spiral body located at
The first spiral body mainly provides the lifting force, and the second spiral body mainly provides the stirring force, thereby effectively cleaning and lifting the pachinko balls.

In addition, by setting the gap between the tapered pipe of the lifting pipe and the first spiral body to be slightly larger than the diameter of the pachinko balls, it is possible to prevent pachinko balls from getting caught and wear of the lifting pipe. : Ru.

Furthermore, the present invention does not require bending the lower part of the lift pipe, so it is not bulky, and the structure is simple, so it is less likely to break down and has high practical value.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a longitudinal sectional front view, FIG. 2 is an enlarged view of the main part, and FIG. 3 is a plan view of the sorting device. 1... Lifting device, 4... Ball storage section, 5
・−・−・Lifting pipe, 5a・・・−・−Tapered pipe, 5
b-... straight pipe, 7-... ;... spiral body, 8...
...First helix, 8'--Second helix, 9...
...Lower end opening, 10... - driving source, 11...
...Top opening, 12-... Sorting device, 8-...
... Pachinko ball, B--Abrasive material.

Claims (1)

[Claims] 1. A ball storage section for storing a mixture of pachinko balls and an abrasive material;
A lifting pipe whose lower end opening faces into the ball storage section and whose upper end opening communicates with a sorting device for pachinko balls and abrasive materials, a spiral body inserted into the lifting pipe, and a drive source for rotating the spiral body. The lifting pipe is composed of a tapered lower end pipe with a downward diameter facing the ball storage part and a straight pipe above the pipe, and the spiral body is located within the tapered pipe and has It is characterized by being comprised of a truncated cone-shaped first spiral body that projects downward from the lower end opening and has a larger diameter toward the bottom, and a second spiral body that is located within the straight pipe and has a smaller diameter than the first spiral body. Pachinko ball lifting device. 2. Claim 1, in which the maximum diameter of the truncated conical first spiral body is set larger than the inner diameter of the straight pipe of the lift pipe.
A device for lifting and transporting pachinko balls as described in section 2. 3. The pachinko ball according to claim 1 or 2, wherein the gap set between the tapered pipe of the lifting pipe and the conical first spiral body is larger than the diameter of the pachinko ball to be lifted. lifting equipment. 4. Claim No. 4, wherein the truncated cone-shaped first helical body is made of a flexible material that deforms and releases the pachinko ball when the pachinko ball is caught between the tapered pipe of the lift pipe and the helical blade. The pachinko ball lifting device according to any one of items 1 to 3.