JPH02128909A - Expansion device and expanding method by using said device - Google Patents

Abstract

PURPOSE: To easily inflate a deflated tire by using air of a tire of one's own car having normal air pressure, by installing each two-way valve, which opens a tire air inlet valve when screwed in this valve, at both ends of a helically wound flexible tube. CONSTITUTION: This inflator 10 consists of a continuous tube intalled with each two-way valve 20 at both the ends, installing a lot of helixes shown in a loop 30, in the intermediate part. This two-way valve 20 has a pin 29 to be urged by a spring 25, having a head 26 at the end, and it is opened by the pin 29 depressing a pin 59 of an air inlet valve 58 when a female thread is screwed in a male thread 55 installed in an outer boundary of the air inlet valve 58 of a tire 50. At the time of application, one end is connected to the air inlet valve 58 of the deflated tire 50, while the other end is connected to the air inlet valve 58 of a tire 40 with normal air pressure, and thereby air in this tire 40 is shifted to the tire 50 till each pressure of both these tires 40 and 50 is balanced, thereby inflating the tire 50 in this way.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Use Minute Hand) The present invention relates to an inflation device, and more particularly to an inflation device for a pneumatic tire of a vehicle.

PRIOR ART AND THEIR PROBLEMS A large number of expansion devices are known in the prior art. A hand pump is used to inflate an underinflated tire below the required volume at a particular pressure. Additionally, compressed air cans and portable compressors used by vehicle drivers are also used. However, compressed air cans are disposable and cannot be reused, which poses a safety problem if they become punctured. Manual pumps are prone to rust and require a lot of effort to use. Also, portable compressors are expensive.

OBJECTS OF THE INVENTION It is an object of the invention to provide a simple and reliable tire inflation method and device.

(Structure of the Invention) The inflation device of the present invention comprises at least one tube having at least two ends and a predetermined length, both ends of the tube are connected to each other, and each of the two ends is connected to the inside of the device during use. It is closed with a valve to control the inflow and outflow of gas.

The inflator device of the present invention also comprises one continuous extension tube of a predetermined length having two ends, the tube preferably comprising a helically unwound tube, each end of the tube being used for each use. It is sometimes closed with a valve to control the flow of gas into and out of the device.

Further, the expansion method of the present invention uses the first expansion device described above, attaches the end of the first valve to the end of the second valve, and connects at least the end of the third valve to the end of the third valve. attach it to at least the end of the fourth valve of the inflatable body and wait for a predetermined period of time until the constrictor expands to a specific volume and pressure level, during which time the expandable body remains inflated at the predetermined volume and pressure; The valve end and the second valve end are separated, and at least the third valve end and the fourth valve end are separated, and the expansion device is stored for subsequent use.

Further, the expansion method of the present invention uses the second expansion device, attaches the end of the third valve to the end of the second valve, and connects the end of the third valve to the fourth valve of the expansion body containing compressed gas. end and wait a defined time rR until the constrictor expands to a specified volume and pressure level, during which time the expander remains inflated at the predetermined volume and pressure level, and the first end of the valve and the second The valve end is cut off, the third valve end and the fourth valve end are cut off, and the expansion device is stored for next use.

The expansion device and method of the present invention also include using a Schrader-type valve combined with a check valve to substantially equalize the pressure in the deflation body and the pressure in the expansion body. .

Furthermore, the inflation method of the present invention is characterized in that the deflating body and the expanding body are pneumatic tires.

Hereinafter, the present invention will be specifically explained with reference to the drawings.

FIG. 1 is a perspective view of an inflation mechanism 10 of the present invention. In the figure, the expansion mechanism 10 is made of a single continuous tube with two-way valves 20 at both ends. The tube 15 extending between the two-way valves 20 has a number of helices, indicated by loops 30, which cause the inflation mechanism 10 to have an elastic stretch. Due to this elastic elongation, the expander $1t1
0 can be designed compactly and the tube 15 can be extended as desired by the user and held in a compressed state like a helical spring for storage.

Although the spring may not be necessary in alternative embodiments, it provides the preferred compactness advantage of the present invention.

Valve 20 is provided at both ends 18 of tube 15 and is a two-way valve.

The reason for using a two-way valve is that air can flow between both sides. Additionally, equilibrium between the expanding and contracting bodies may also be achieved by using a two-way valve.

2 and 2A are enlarged sectional views of the two-way valve 20 of FIG. 1.

In the figure, two-way valve 20 is connected to tube 15 in a conventional manner using a pin 29 extending through its center.

This bottle 29 is biased by a spring 25 and has a head 26 at its end. The head 26 has a hemispherical shape on the tube 15 side and a planar shape on the valve 20 side. FIG. 2 shows a state in which the inflation device is separated from the tire 50, and FIG. 2A shows a state in which the tire and the inflation device are connected and their parts are combined. The tire 50 has a male thread 55 that fits into the female thread of the two-way valve 20. Male thread 55 is pin 5
9, and the bin 59 has a head 56 on the tire 50 side. The design of the head 56 is such that it prevents air from escaping from the tire 50 into the atmosphere.

As shown in FIG. 2A, when the bottle 59 and the pin 29 come into contact with each other, air passes in one direction or the tube 15 and the tire 50
Move the heads 26 and 56 to a point (1!) depending on the pressure present in the tire.When the tire 50 is at its lowest pressure,
As a result of the pressure within the tire 50 and tube 15, air moves in the direction of arrow A2.

FIG. 3 is a side view when a deflated tire is inflated using an inflation device according to an embodiment of the present invention. In the same figure, when the inflator of the present invention is used, the deflated tire 5
Connect to 0. Such shrinkage is insufficient to cause the tire to lose its seal around the rim. Therefore, the second
As shown in Figure A, the expansion device 10 has valves 20 and 5, respectively.
5 and 45 are attached to the tire 50 and the tire 40. In FIG. 3, truck T is placed on ground R1 until tires 50 are inflated to a level sufficient for the driver to move the vehicle, or until the pressures in tires 50 and 40 substantially equilibrate. , the pressure inside the tire 40 (approximately 7
5 pounds per square inch) in the D1 direction
The air inside moves towards the tire 50. Expansion bag W1
The above equilibrium occurs through the use of a two-way valve while stopping the air flow by removing either end of the 0. of course,
If you want the tire 50 to be inflated using the pressure in the tire 40 and still be insufficiently inflated so that the truck T can't drive well, then similarly, if you want the tire 50 to be inflated using the pressure in the tire 40 but still insufficiently inflated so that the truck T can't drive well, then you can similarly inflate the tire 50 using the pressure in the tire 40 to inflate it insufficiently so that the truck T can't drive properly. can take the air.

In this way, if a tire loses pressure at a remote location, the tire can be inflated to a sufficient level so that the driver can take the vehicle to a service stage to have the tire 50 repaired. Can be done. of course,
Unfortunately, if the tire 50 is completely flattened and there is no seal around the rim, the device of the present invention is of no use. The invention is particularly useful when a tire slowly leaks air or when a bumpy road causes the seal to momentarily lose air from the tire.

The device of the invention can be used to balance the air pressure between a deflation body and an expansion body, or between two unevenly inflated tires. Furthermore, the pine tress can be inflated using an inflatable body containing gas of sufficient volume and pressure. Such inflatable objects include spare tires, disposable compressed air cans, air receivers, and the like.

An air receiver specifically constructed for use with the present invention can also be used to inflate deflated tires from a container. The air receiver is filled with compressed air and stored in the vehicle until needed.

Many variations are possible without departing from the scope of the invention, and the above description is given by way of example only and is not limiting.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an expansion mechanism according to an embodiment of the present invention;
2 and 2A are enlarged cross-sectional views for explaining the function of the two-way valve shown in FIG. 1, and FIG. 3 is a side view of an example in which a deflated tire of a truck is inflated. 10... Expansion mechanism, 15... Tube, 20... Two-way valve, 25...
Spring, 26...Head, 29...
...Pin, 40.50...Tire, 56.
...Head, 59...Bin.

Claims (9)

[Claims] (1) Consists of at least one tube of a predetermined length having at least two ends, both ends of which are connected to each other, and the at least two ends control the ingress and egress of gas through the device during use; An expansion device consisting of a fixed valve. (2) An expansion device consisting of a single continuous tube of a predetermined length having two ends, each end of which has a valve affixed thereto for controlling the ingress and egress of gas through the device during use. (3) The inflation device according to claim 2, wherein the tube is a spirally wound tube. (4) Consisting of at least one tube of a predetermined length having at least two ends, both ends of the tube are connected to each other, and the at least two ends are valves for controlling the inflow and outflow of gas passing through the device. using an expansion device in which a first valve end of the expansion device is attached to a second valve end of the contraction body, and at least a third valve end of the expansion device is used to store pressurized gas. attaching the at least one inflatable body to the end of at least a fourth valve, and waiting for a predetermined period of time until the deflating body reaches a certain acceptable volume/pressure level;
Meanwhile, the at least one inflatable body maintains expansion to an acceptable level of volume and pressure, separates the ends of the first valve from the ends of the second valve, and separates the ends of the at least third valve from the end of the at least fourth valve. A method for inflating a deflating body, comprising the steps of separating the ends of the inflator and storing the inflator for subsequent use. (5) using an expansion device consisting of a continuous tube of a defined length with two ends, each end of which has a valve fixed thereto for controlling the inflow and outflow of gas through the device; attaching a first valve end of the expansion device to a second valve end of the contraction body, and attaching a third valve end of the expansion device to a fourth valve end of the expansion body containing pressurized gas; The contracting body waits for a predetermined period of time until the volume and pressure reach a certain permissible level, while the expanding body maintains its expansion at the permissible level of volume and pressure, and the end of the first valve and the second valve a method for inflating a deflating body, the method comprising the steps of separating the ends of the third valve and the ends of the fourth valve, and storing the expansion device for next use. (6) The expansion device according to claim 1, 2 or 3, wherein the expansion device comprises a Schrader type valve combined with a non-return valve to substantially equalize the pressure of the contraction body and the pressure of the expansion body. (7) The expansion device and method according to claim 4 or 5, wherein the expansion device and method thereof comprises a Schrader type valve combined with a non-return valve, and substantially equalizes the pressure of the contraction body and the pressure of the expansion body. and how. (8) The method according to claim 4 or 5, wherein the inflation method uses an inflation device in which the deflating body and the expanding body are pneumatic tires. (9) The method according to claim 7, wherein the inflation method uses an inflation device in which the deflating body and the expanding body are pneumatic tires.