JPH09280397A - Air chuck - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a small-sized inexpensive tool having a simple structure in which a tubeless tire can be fixed to a wheel within a short period of time in an easy manner, although another exclusive tool was needed to obtain insufficient air pressure and amount of air only with a conventional air chuck and a troublesome operation was required. SOLUTION: A main body 1 having a hole 5 with a widened end through which air passes is provided with a projection 8 for a valve, its side surface is provided with one or two or more holes 6 through which air enters and a hole 7 at its extremity end through which air passes. An adapter 2 is installed inside either a cylinder 17 having an outer extremity end fitted inside a US type valve or a cylinder 17 to be fitted to an outside part of a British type valve.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a tube type or tubeless tire mounting work for a motorcycle, a bicycle, an automobile repair shop, a gas station, etc., and particularly to an air chuck for mounting the 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 outlet of the rubber packing 14 is small, and the valve valve projection 16 is projected from the central portion thereof. Therefore, the air from the compressor is blocked, and the air pressure and the amount of air to be discharged are limited.

When a tubeless tire is attached to a wheel, the air pressure and the amount of air are not sufficient with a conventional air chuck alone, so air leaks from the gap between the tire and the wheel, and the tire can be attached to the wheel. Hateful. Therefore, by using a dedicated tool or rope disclosed in JP-A-3-99908, a force is applied to the outer peripheral surface of the tire to deform the tire into a flat shape so that the tire bead portion and the wheel are brought into close contact with each other. -Apply a ring-shaped pipe with a cover to the gap between the tire and the foil shown in -11704 to reduce the gap between the tire and the foil,
Air is made hard to leak and the tires are attached using the conventional air chuck. Moreover, in some cases,
The air chuck attached to the hose of the compressor is removed in advance from the valve of the American valve (so-called Musi rubber), and the air is sent by directly applying the hose tip to the American valve. .

In some cases, the tire cannot be attached even in the above-mentioned manner.
We are requesting the installation of tires from a specialized dealer who owns a large-scale special tool disclosed in 53211.

[0005]

As described above, since the air pressure and the air amount are not sufficient with the conventional air chuck alone, a dedicated tool is used to prevent air from leaking through the gap between the tire and the wheel. So, I have tires attached. Therefore, it takes time and labor to install. Further, a specialized tool such as Japanese Patent Laid-Open No. 59-5321 owned by a specialized company is large and expensive, and it is difficult to own it at a motorcycle or bicycle store. Therefore, it cannot be said that the above-mentioned dedicated tools conventionally used are practical.

An object of the present invention is to provide a small-sized, simple-structured and inexpensive tool which allows a tubeless tire to be attached to a wheel easily and in a short time.

[0007]

[Means for Solving the Problems] As shown in FIG. 2, the hole through which the air of the main body is widened so that the tip end is widened so that the air pressure from the compressor is kept as much as possible without being obstructed by the adapter. In addition to making it possible to discharge, one or more air holes are provided on the side surface of the adapter, and the outside of the tip is made into a cylinder that fits inside the US valve (shown by hatching), or the tip The inside of the taper portion was made into a cylinder that fits onto 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 by the pressure of air from the compressor as in the conventional air chuck, and the air is not discharged. As shown in (1), the tip of the hole 5 through which the air of the main body 1 passes is widened so that a large amount of high pressure air can be discharged without being obstructed by the adapter 2 during use.

As shown in FIG. 2, the adapter 2 is provided with a cylinder 17 having one or more holes 6 through which air enters and a hole 7 through which air exits at the tip, so that the air flow is not hindered and the adapter 2 It was designed so that air could be released while maintaining the atmospheric pressure.
The outside of the tip was made to match the inner diameter of the rice-type valve 9 so that the air chuck would not be displaced when injecting air.

Further, as shown in FIG. 3, a projection for a valve valve is provided so that it can be used even when the valve valve 10 is attached to the US type valve 9, that is, it can also be used during normal inflating. 8 is provided.

As shown in FIG. 5, the inside of the tip of the adapter 2 has a taper shape (a mortar shape) to match the outer diameter of the English-style valve 11, and when inflating a bicycle or the like using the English-style valve 11. Also made available. Protrusion 8 is English valve 1
It also goes into the hole No. 1 and plays a role of preventing misalignment.

[0012]

When the valve valve 10 of the American valve 9 of the tubeless tire wheel is removed and the 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 EMBODIMENT As shown in FIG.
Then, the rubber packing 3 is inserted, and the cap 4 is screwed in to fix the rubber packing 3. The lower side of the tip of the hole 5 through which the air passing through substantially the center of the main body 1 is widened toward the end. This is for making it easier for high pressure air to enter the hole 6 of the adapter 2. In the case of a bicycle or the like, generally only one hole 6 is required, but in the case of a small bike or a tubeless tire of a light vehicle, in order to make it easier for high pressure air to enter the hole 6 of the adapter 2, 2 or 3 is good. Further, in the case of a larger tubeless tire, the number may be 4 to 5 if necessary.

As shown in FIG. 2, the valve valve 10 is removed from the American valve 9 of the tubeless tire wheel,
An air chuck is applied to the removed valve 9 as in the conventional case, and air is injected into the tubeless tire. The air from the compressor passes through the hole 5 through which the air of the air chuck body passes, and is not hindered by the adapter 2, and the hole 6 on the side surface of the cylinder 17 provided in the adapter 2 allows the air to enter.
Air is released through the hole 7 at the tip and exits through the hole 7 through the valve 9 in the foil and into the tire. The air from the compressor is kept in pressure because it is not blocked by the adapter 2 and is sent into the tire in large quantities, so that the tire inflates in a few seconds and is attached to the wheel.

Further, the cylinder 1 forming the tip of the adapter 2
7 has a hole 7 through which air is emitted at the tip, and the outside of the tip fits 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 protrusion 8 for the valve valve 10 so that air can be injected even when the valve valve 10 is attached. Therefore, when the valve 9 is attached to the valve 9 and then the air chuck is applied to the valve 9 as in the conventional air chuck, the tip of the protrusion 8 pushes the valve valve 10 and air is injected into the tire. Then, when the air chuck is removed when the specified pressure is reached, the valve valve 10 returns to its original state, so that the air pressure inside the tire is maintained and the tire is ready for use.

Further, another invention of the present application is mainly for injecting air into the American valve of a tubeless tire of an automobile, and as shown in FIG. 7 has a hole 6 through which air enters and a hole 7 through which air exits, and as shown in FIG. 7, a cylinder 17 is formed so that the inside of the tapered portion 18 at the tip is fitted to the outside of the English valve 11. is there. Further, as shown in FIG. 2, the outside of the tip exactly fits 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.

Further, the attachment 21 dedicated to the present invention
The material is generally brass or brass so that it can be attached in close contact with the adapter 2 and air can be prevented from leaking. As shown in FIG. 9, there is a V-shaped ring-shaped notch 19 at hand, and a collar portion 20 is provided immediately in front of the notch so that it is sandwiched between the index finger and the middle finger at the time of use and is placed inside the main body 1. You can insert it snugly to prevent air from leaking. It should be noted that if the rear portion of the main body 1 is cut flat, the thumb can be put on it to work, and this is very effective in preventing air leakage.

[0019]

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

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

Although it is used in the same manner as a conventional air chuck, it can release a high pressure and a large amount of air, and even an old and deformed tubeless tire can be attached to a wheel easily and in a short time without unnecessary labor. You can

Since the front end of the hole through which the air of the main body passes is widened so that the air from the compressor is not blocked by the adapter, the air is discharged while maintaining the pressure from the compressor as much as possible.

Since the outside of the tip of the adapter is made to match the inner diameter of the tip of the US valve, the air chuck can be surely injected without the air chuck shifting when injecting the air. Since the adapter has a valve valve protrusion, it can also be used when simply adding air.

Further, since the inside of the tip of the adapter is tapered in accordance with the outer diameter of the tip of the English valve, it can be used for bicycles using the English valve, and if another attachment is used. It can also be applied to an air gun (a device that blows air to remove dust). In addition, if you use a dedicated nozzle-shaped attachment,
It can also be applied to balls, inflatable boats, floats, etc.

For a French-type valve (French valve) bicycle, if a commercially available attachment (adapter) is used, air can be similarly introduced.

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

[Brief description of drawings]

FIG. 1 is a vertical 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 an American type valve from which a valve valve has been removed and air is fed.
Vertical sectional view.

FIG. 3 shows a state in which the air chuck of the present invention is applied to an American valve equipped with a valve valve and air is fed in.
Vertical sectional view.

FIG. 4 is a vertical cross-sectional view of each component.

FIG. 5 is a vertical cross-sectional view showing a state in which the air chuck of the present invention is applied to an English-style valve and air is fed.

FIG. 6 is a vertical cross-sectional view of an embodiment in which an adapter according to the present invention is provided with three holes for allowing air to enter.

FIG. 7 is a vertical cross-sectional view of an embodiment in which the adapter according to the present invention is provided with one hole through which air enters.

FIG. 8 is a vertical cross-sectional view of an embodiment of the adapter according to the present invention having no protrusion.

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

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

[Explanation of symbols]

 1 Main body 2 Adapter 3 Rubber packing 4 Cap 5 Hole through which air passes 6 Hole through which air enters 7 Hole through which air exits 8 Valve valve protrusion 9 US valve 10 Valve valve 11 English valve 12 Conventional air chuck body 13 Conventional Air chuck adapter 14 Conventional air chuck rubber packing 15 Conventional air chuck cap 16 Conventional air chuck valve valve protrusion 17 Cylinder 18 Tapered portion 19 Ring notch 20 Collar 21 Attachment

Claims (4)

[Claims] 1. An air chuck in which an adapter 2 is internally attached to a main body 1 having a hole 5 through which air is widened and whose tip end is widened. 2. The adapter 2 has one or more holes 6 through which air enters and a hole 7 through which air exits at the tip, with or without a valve valve projection 8, and at the end of the tip. Cylinder 1 with the outside fitted inside the US valve 9
7. The air chuck according to claim 1, wherein the air chuck is 7. 3. The adapter 2 has one or more holes 6 through which air enters and a hole 7 through which air exits at the tip, and the inside of the tapered portion 18 inside the tip is fitted to the outside of the English valve 11. The air chuck according to claim 1, which is formed as such a cylinder 17. 4. A substantially V-shaped ring-shaped notch 19 is provided at the rear end of the adapter 2, and a collar portion 20 is provided slightly forward.
The air chuck according to claim 1, wherein a nozzle-shaped attachment 21 around which is attached is detachably mounted.