JP2007075984A - Power source for pneumatic tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a safety power source for a pneumatic tool, which does not need electric power, prevents noise, and has good portability. <P>SOLUTION: A small-sized pressure container 1 exempt from the application of the High Pressure Gas Safety Law, wherein noncombustible gas such as carbon dioxide gas is sealed with pressure of having capacity sufficient for actuating the pneumatic tool 10, is used by connecting to the pneumatic tool after decompressed to a normal pressure zone actuating the pneumatic tool. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

Detailed Description of the Invention

The present invention can be used as a power source for a pneumatic tool mainly used in maintenance / repair work of a house, interior / exterior work, and the like.

Conventional pneumatic tools used for home maintenance and repair work, interior / exterior work, etc. cannot be operated alone. In order to operate pneumatic tools, compressed air is supplied from the air compressor through the air hose. Must be taken into.

Therefore, pneumatic tools cannot be used unless an air compressor is brought into the construction site.

Although there are already examples of devices for driving the fasteners without using the air compressor, since they are internal combustion engines, carbon monoxide is discharged during use, so there is no danger in the maintenance and repair work of the house.

In addition, a considerable amount of electric power is required to operate the air compressor, and noise is generated during operation.

At the new construction site, there are no residents, so the problem is only for the neighborhood, so there is little damage, but in maintenance work, the air compressor is used together with the noise when using the pneumatic tool even though the amount of pneumatic tool is small Driving noise is very uncomfortable for consumers.

Problems to be solved by the invention

In order to drive a conventional pneumatic tool, the present invention provides a safe pneumatic tool power source that does not require electric power, has no noise, and is portable.

Means for solving the problem

A normal pressure band in which a pneumatic tool is operated using a small pressure vessel that does not apply to the High Pressure Gas Safety Act, in which a non-flammable gas such as carbon dioxide gas is sealed at a pressure sufficient to operate the pneumatic tool. Connect to a pneumatic tool after depressurization until it is used.

Examples are shown below. 1. The pressure vessel is used by being installed in a pressure vessel cover composed of two parts, an upper part and a lower part.

2A. Pressure vessel upper cover and 2B. Multiple examples of pressure vessel lower cover connection methods are assumed.

3A. To pressure vessel cover with wrong connection prevention dial When installing the pressure vessel, 2A. In the pressure vessel upper cover After inserting the pressure vessel, rotate the 3A erroneous connection prevention dial to the opposite side of the connection direction. Set the pressure vessel lower cover to 2A. By screwing into the pressure vessel upper cover, 1. The nonflammable gas sealed in the pressure vessel is released and flows into the pressure reducing valve. After the pressure is reduced to the normal pressure, the check valve is pulled out of the transmission pipe, and the pressure is reduced to the final working pressure. It flows to the pressure tool.

In the drawing, 4. 4. a pressure reducing valve and Although it is described separately from the check valve, in actual work, there is a risk of accidental connection at the time of preparation, causing the gas inside to flow out. Equipped with an erroneous connection prevention dial.

If it is unclear how many pressure vessels are required for work with pneumatic tools, the operator must Rotate the misconnection prevention dial in the connection direction, and 2B. Set the pressure vessel lower cover to 2A. Screw in the pressure vessel upper cover and fix the pressure vessel cover.

In this state, 1. Since the non-combustible gas is not injected from the pressure vessel toward the pressure reducing valve, it can be attached and moved in the unused state as a spare.

When using pneumatic tools, 3A. Rotate the wrong connection prevention dial to the opposite side of the connection direction and then 2B. When the pressure vessel lower cover is screwed in, the internal pressure vessel is 2A. Screwed securely into the pressure vessel upper cover.

The drawings show other connection embodiments, and 3B. Connection guide pins and 3C. A mold having a connection guide groove.

In this case as well, the same as in the previous embodiment, 1. It is possible to mount the pressure vessel in the pressure vessel cover in an unused state.

In this case, the worker is 2B. 3B on the pressure vessel lower cover. Connect the guide pin to the 2A. 3C on the upper cover of the pressure vessel. Align with the connection guide groove and push in the connection direction.

Then 3C. In different directions according to the connection guide groove 3B. Advance the connection guide pin.

In that state, the same as in the previous embodiment, 1. Incombustible gas is not injected from the pressure vessel toward the pressure reducing valve.

It can be installed and moved in the unused state as a spare. When using it, 3C. It can be used by pushing it to the end according to the connection guide groove.

The invention's effect

According to the present invention, electric power is not used, and it is not necessary to fill air on site like an air compressor. Therefore, preparation can be made in a very short time immediately before the use of a pneumatic tool.

The operator simply prepares to connect as many small pressure vessels filled with incombustible gas such as carbon dioxide gas to the transmission pipe via the pressure reducing valve as required by the operator.

The operator places the present invention on the floor as in the conventional air compressor and introduces air into the pneumatic tool with an air hose.

A transmission tube integrated with a small pressure vessel can be attached to clothes or a belt and introduced into a pneumatic tool by an air hose.

According to the former, the power source does not emit noise when in use, so it is effective even when there are maintenance and repair work sites or neighbors.

Furthermore, according to the latter, since compressed air is introduced into the pneumatic tool with a very short air hose, the pneumatic hose is not brought into contact with the floor surface when using the pneumatic tool in the direction of the wall or ceiling. The effect that it does not pollute can be acquired.

Both are effective for maintenance and repair work in the space where people live.

Even in high-altitude work, the operator can work without being aware of the air hose, so safety can be provided simultaneously.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Pressure vessel 2A Pressure vessel upper cover 2B Pressure vessel lower cover 3A Connection prevention dial 3B Connection guide pin 3C Connection guide groove 4 Pressure reducing valve 5 Check valve 6 Transmission pipe 7 Pressure adjusting valve 8 Pressure gauge 9 Air hose 10 Pneumatic tool

Claims (6)

A pneumatic tool power source characterized in that a pressure vessel enclosing a nonflammable gas with a capacity of less than 100 ml and an internal pressure of 1 MPa or more and less than 5 MPa can be joined to a decompression device. 2. The pneumatic tool power source according to claim 1, wherein a protective container is attached outside the pressure vessel in order to protect the pressure vessel from impact from all directions while the pressure vessel is securely joined to the pressure reducing device. Pneumatic tool power source. The pneumatic tool power source according to claim 1, wherein when the pressure vessel is intentionally removed during use, the noncombustible compressed gas enclosed in the protective vessel according to claim 2 is opened. Pneumatic tool power source characterized by that. The power source for a pneumatic tool according to claim 1, wherein the pressure vessel can be stored in the protective container according to claim 2 even when the pressure vessel is not used. The pneumatic tool power source according to claim 2, wherein the presence or absence of a pressure vessel in the protective container can be confirmed from the outside of the protective container. Using two or more pneumatic power sources for pneumatic tools according to claim 1 or 2, each of which is depressurized to 1 Mpa or less by a decompression device, and then supplied to the same transmission pipe for stable supply to the air hose Pneumatic tool power source characterized by being connected.

Images