JP3054813B2 - Air chuck - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tube type or tubeless tire mounting work at a motorcycle, a bicycle, an automobile repair shop, a gas station, and the like, and particularly to an air chuck for mounting a tubeless tire on a wheel.

[0002]

2. Description of the Related Art As shown in FIG. 10, in a conventional air chuck, a gap between an adapter 13 and a main body 12 is very narrow. The air discharge port of the rubber packing 14 is small, and a projection 16 for a valve valve protrudes from a central portion thereof. Therefore, the air from the compressor is obstructed, and the air pressure and the amount of air to be released are limited.

When a tubeless tire is mounted on a wheel, the air pressure and the amount of air are not sufficient with only a conventional air chuck, so that air leaks from a gap between the tire and the wheel, and the tire can be mounted on the wheel. Hateful. Therefore, a force is applied to the outer peripheral surface of the tire by using a dedicated tool or a rope disclosed in JP-A-3-99908 to deform the tire flat and bring the tire bead portion into close contact with the wheel. A ring-shaped pipe with a cover attached to the gap between the tire and the wheel shown in -11704 is applied to reduce the gap between the tire and the wheel,
The tire is mounted using a conventional air chuck after making it difficult for air to leak. Additionally, in some cases,
The air chuck attached to the compressor hose is removed in advance from the American valve with the valve valve (so-called worm rubber) removed, and the air is applied directly to the American valve by applying the end of the hose to the American valve. .

In some cases, the tire cannot be mounted even in the case described above.
We have requested a specialized trader with large dedicated tools, disclosed in US Pat.

[0005]

As described above, since the air pressure and the air amount are not sufficient with the conventional air chuck alone, the air is hardly leaked from the gap between the tire and the wheel by using a special tool. With tires installed. Therefore, it takes time and effort to mount. Special tools, such as Japanese Patent Application Laid-Open No. 59-53211, owned by a specialized trader are large and expensive, and it is difficult to own them at motorcycles, bicycle shops, and the like. Therefore, the above-mentioned special tools conventionally used are not practical.

An object of the present invention is to provide a small, simple, and inexpensive tool capable of attaching a tubeless tire to a wheel in a simple and short time.

[0007]

As shown in FIG. 2, the air passage hole of the main body is widened in a divergent shape at the front end, and the air is released while the air pressure from the compressor is maintained as much as possible without being hindered by the adapter. In addition to allowing air to be released, one or more air holes are provided on the side of the adapter, and the outside of the tip is made into a cylinder fitted to the inside of a rice-style valve (indicated by hatching). The inside of the tapered part was a cylinder fitted to the outside of the English valve (shown by hatching in FIG. 5).

As shown in FIG. 1, when not in use, the adapter 2 comes into close contact with the rubber packing 3 due to the pressure of air from the compressor as in the conventional air chuck, and does not release air. As shown in the figure, the end of the hole 5 through which the air passes through the body 1 is widened in a divergent manner so that a high pressure and a large amount of air can be released without being hindered by the adapter 2 during use.

As shown in FIG. 2, the adapter 2 is provided with a cylinder 6 having a hole 6 at one or more sides into which air enters, and a hole 7 at the end at which air flows out. Air was released while maintaining the atmospheric pressure.
The outer end of the tip was made to match the inner diameter of the rice valve 9 so that the air chuck did not shift when air was injected.

Further, as shown in FIG. 3, a projection for the valve valve is used so that it can be used even when the valve valve 10 is attached to the U.S. type valve 9, that is, it can be used for ordinary air injection. 8 were provided.

As shown in FIG. 5, the inside of the tip of the adapter 2 is tapered (sharpened bowl shape) so as to match the outer diameter of the English type valve 11 when the air is supplied to a bicycle or the like using the English type valve 11. Can also be used. The projection 8 is the English valve 1
It also penetrates into one hole and also serves to prevent slippage.

[0012]

When the valve valve 10 of the U.S. type valve 9 of the tubeless tire wheel is removed and an air chuck is directly applied to the valve, a large amount of high pressure air is released into the tubeless tire. Since the amount of air released by the air chuck is larger than the amount of air leaking from the gap between the wheel and the tire, the tire inflates in a few seconds and is attached to the wheel.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG.
After that, the rubber packing 3 is inserted, the cap 4 is screwed in, and the rubber packing 3 is fixed. The lower side of the tip of the hole 5 through which air passes through substantially the center of the main body 1 is widened toward the front. This is to make it easy for high-pressure air to enter the hole 6 of the adapter 2. In the case of a bicycle or the like, only one hole 6 is generally required. However, in the case of a small motorcycle or a tubeless tire of a mini vehicle, in order to make it easier for high-pressure air to enter the hole 6 of the adapter 2 more smoothly, Two or three are good. In the case of a larger tubeless tire, the number may be set to 4 to 5 as needed.

As shown in FIG. 2, the valve valve 10 is removed from the U.S. type valve 9 of the tubeless tire wheel,
An air chuck is applied to the removed valve 9 in the same manner as before, and air is injected into the tubeless tire. The air from the compressor passes through the hole 5 of the air chuck body through which the air passes, and is not hindered by the adapter 2, and the hole 6 on the side surface of the cylinder 17 provided on the adapter 2 is provided.
, And the air at the tip is discharged from the hole 7 and sent through the valve 9 of the foil into the tire. Since the air from the compressor is not obstructed by the adapter 2, the pressure is maintained, and a large amount is sent into the tire, so that the tire inflates in a few seconds and is attached to the wheel.

Further, the cylinder 1 forming the end of the adapter 2
Reference numeral 7 has a hole 7 at the tip of which air flows out, and the outside of the tip is fitted exactly inside the rice valve 9. Therefore, even if high-pressure air is sent from the compressor, it can be injected into the tubeless tire without leaking.

As shown in FIG. 3, the air chuck is provided with a projection 8 for the valve valve 10 so that air can be injected even when the valve valve 10 is mounted. Accordingly, when the air chuck is applied to the valve 9 in the same manner as the conventional air chuck after the valve valve 10 is attached to the valve 9, the tip of the projection 8 pushes the valve valve 10, so that air is injected into the tire. Then, when the air chuck is removed in a state where the pressure reaches the specified pressure, the valve valve 10 returns to its original state, the air pressure in the tire is maintained, and the tire becomes usable.

Further, another invention of the present application is mainly for injecting air into a U.S. valve of a tubeless tire of an automobile, and as shown in FIG. A hole 17 through which air enters and a hole 7 through which air exits at the end are formed into a cylinder 17 as shown in FIG. is there. Further, as shown in FIG. 2, the outside of the distal end is exactly fitted to the inside of the American type valve 9. Therefore, even if high-pressure air is sent from the compressor, it can be injected into the tubeless tire without leaking.

Further, the attachment 21 dedicated to the present invention.
The material is generally brass or brass, which can be attached in close contact with the adapter 2 and does not leak air. As shown in FIG. 9, the shape has a V-shaped ring-shaped notch 19 at hand, and a flange portion 20 is provided immediately in front of the V-shaped ring-shaped notch 19 so that the forefinger and the middle finger pinch the main body 1 during use. It fits snugly and prevents air from leaking. If the rear part of the main body 1 is cut flat, it is possible to work with the thumb applied thereto, which is very effective in preventing air leakage.

[0019]

Since the present invention is configured as described above, it has the following effects.

The air chuck of the present invention is approximately the same size as a conventional air chuck, so that it is small and easy to store, and has a simple structure, so that it is less expensive than a conventional tubeless tire mounting tool.

[0021] The same usage as the conventional air chuck, but it is possible to discharge a higher pressure and a large amount of air, and even an old and deformed tubeless tire can be easily and quickly attached to the wheel without wasting labor. I can do it.

The air through the hole of the main body is widened in a divergent shape so that the air from the compressor is not obstructed by the adapter, so that the air is released while maintaining the pressure from the compressor as much as possible.

Since the outer end of the end of the adapter is formed so as to correspond to the inner diameter of the end of the U.S. valve, the U.S. valve can reliably inject air without displacing the air chuck when injecting air. Since the adapter has the projection of the valve valve, it can be used even when air is simply introduced.

Also, since the inside of the tip of the adapter is tapered in accordance with the outer diameter of the tip of the English valve, the adapter can be used for bicycles using an English valve. It can also be applied to air guns (apparatus for removing dust by blowing air). Also, if you use a special nozzle-shaped attachment,
It can also be applied to balls, rubber boats, floats, etc.

Air can be similarly introduced into a bicycle of a French style valve (French valve) by using a commercially available attachment (adabuta).

As described above, the present invention can be used not only for the tubeless tire mounting operation but also for the inflating operation of tires and wheels using any of the American type valves, English type valves and French type valves. Yes, practical.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of an air chuck of the present invention.

FIG. 2 shows a state in which the air chuck of the present invention is applied to a U.S. type valve from which a valve valve has been removed, and air is supplied.
Longitudinal section.

FIG. 3 shows a state in which the air chuck of the present invention is applied to a U.S. type valve to which a valve valve is attached, and air is supplied.
Longitudinal section.

FIG. 4 is a longitudinal sectional view of each component.

FIG. 5 is a longitudinal sectional view showing a state in which the air chuck according to the present invention is applied to an English type valve and air is supplied.

FIG. 6 is a longitudinal sectional view of an embodiment in which three air holes are provided in the adapter according to the present invention.

FIG. 7 is a longitudinal sectional view of an embodiment in which a single air-entering hole is provided in the adapter according to the present invention.

FIG. 8 is a longitudinal sectional view of an embodiment of the present invention having no projection on the adapter.

FIG. 9 is a vertical cross-sectional view showing a usage state of an attachment dedicated to the present invention.

FIG. 10 is a vertical cross-sectional view showing a state in which air is released from a conventional air chuck.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 2 Adapter 3 Rubber packing 4 Cap 5 Air passage hole 6 Air entry hole 7 Air exit hole 8 Projection for valve valve 9 American valve 10 Valve valve 11 English valve 12 Conventional air chuck body 13 Conventional Adapter of air chuck of 14 Rubber packing of conventional air chuck 15 Cap of conventional air chuck 16 Projection for valve valve of conventional air chuck 17 Cylindrical 18 Tapered portion 19 Ring cut 20 Flange 21 Attachment

Claims (1)

(57) [Claims] 1. A body 1 having a hole 5 with air passing therethrough widened in a divergent shape on the front side, and a cylinder 17 having a hole 6 on one or more sides into which air enters and a hole 7 on a tip end from which air exits. Wherein the adapter 2 having a substantially convex longitudinal section is internally fitted in a direction opposite to the flow of air, and a projection 8 for a valve valve is provided substantially at the center of the cylinder 17. .