JPH03224576A - Helmet - Google Patents

Abstract

PURPOSE:To prevent a fact that the skin of the head part of a helmet wearer comes into contact directly with contaminated air of the outside by forming a curtain of gas blown out of a gas blowout tube provided on the peripheral edge part of a helmet main body. CONSTITUTION:On the peripheral edge part of a helmet main body 1 of a helmet H, a gas blowout tube 3 for blowing out gas is provided, and a connecting part 4 which is allowed to communicate therewith and formed so as to be freely attachable and detachable to a gas supply source of the outside is provided. Also, a coil 5 is connected to the connecting part 4, a connector unit 9 is connected to a gas purifier 10, a gas purifying pressurizer 7 is hung from the shoulder, and a person conducts himself by having the gas purifier 10 and a breathing gas supply source 11 with hands. Accordingly, from the gas purifying pressurizer 7, gas purified by a gas purifier 7a passes through the coil 5 and the connecting part 4 and is supplied to the gas blowout tube 3. In such a way, in the periphery of the head part, a gas curtain is formed, and the head part is cut off from contaminated gas in the periphery and protected.

Description

DETAILED DESCRIPTION OF THE INVENTION A0 OBJECTS OF THE INVENTION l) Industrial Application Field The present invention relates to a helmet, and in particular to a helmet suitable for protecting the human body in a polluted environment.

Such helmets are used, for example, in contaminated environments, with contamination protective clothing worn below the neck.

As the contaminated environment, for example, NBC (Nucle
ar Blogicel Chemical)
Environment 1, ie, an environment contaminated with radioactivity, biological weapons, chemical weapons, etc., can be considered.

2) Conventional technology Conventionally, when working in the above-mentioned NBC environment, in order to prevent the skin of the human body from coming into contact with the outside air, the head was covered with a helmet that had a transparent plate for forming windows and was integrated with a mask. The helmet and protective clothing are connected to each other, and the entire body is covered with NBC protective clothing, gloves, shoes, etc.

An NBC filter for removing contamination is connected to the mask, and air purified by the NBC filter or gas from a breathing gas source connected to the NBC filter is supplied.

3) Problems to be Solved by the Invention However, the conventional helmet is integrated with a mask to cut off contact between the head and the outside air, and also has a connection mechanism with contaminated protective clothing, making it heavy and difficult to carry. restrictions are added to. In particular, when an airfield is contaminated, if an aircraft operator wears the conventional helmet and pollution protection suit, boards the aircraft, and then flies, the acceleration applied during flight will cause the weight of the helmet to be multiplied by the acceleration. The load on the head increases by the increased amount.

The present invention was made in view of the above-mentioned circumstances, and an object of the present invention is to provide a helmet that is light, easy to move, and usable in a polluted environment.

B0 Structure of the Invention l) Means for Solving the Problems In order to solve the problems described above, the helmet of the present invention includes a gas ejection pipe disposed at the peripheral edge of the helmet body for ejecting gas for forming a gas curtain, The present invention is characterized in that a connecting portion is provided that communicates with the gas ejection pipe and is detachably connected to an external gas supply source.

2) Function The helmet of the present invention having the above-described configuration is used by connecting an external gas supply source to the connecting portion provided thereon. Then, uncontaminated gas is supplied from the gas supply source to the gas jet tube of the helmet, forming a gas curtain around the head. This gas curtain is
3) Example of Preventing the Skin of the Head of a Helmet Wearer from Directly Contacting External Contaminated Air Hereinafter, examples of the helmet of the present invention will be described with reference to the drawings.

FIG. 1 is an explanatory diagram of one embodiment of the helmet of the present invention, and FIG. 2 is an explanatory diagram of its usage state.

In FIG. 1, a helmet H includes a helmet main body 1 and a visor 2, and a gas ejection pipe 3 for ejecting gas for forming a gas curtain is disposed at the peripheral edge of the helmet main body 1.

Further, the helmet main body 1 is provided with a connecting portion 4 that communicates with the gas jet pipe 3 and is detachably connected to an external gas supply source.

In FIG. 2, an aircraft pilot #IP wearing the helmet H has his body from the neck down covered with special protective clothing, shoes, and the like. The connecting portion 4 of the helmet H is connected to one end of a flexible pipe 5 that supplies curtain-forming gas. The other end of the flexible pipe 5 is connected to a gas purification pressurizer (curtain forming gas supply source) 7 via a detachable coupler 6. This gas purification pressurizer 7 is composed of a gas purifier 7a with a built-in NBC filter, a fan motor 7b, etc., and is designed to be carried by the user P by hanging it on his or her shoulder. In addition, in FIG. 2, the gas purification pressurizer 7 is shown in a state where it is lowered from the shoulder.

One end of a flexible tube 8 for supplying breathing gas is connected to a mask M worn by the operator P, and a connector unit 9 is connected to the other end. The connector unit 9 is configured to be detachably connected to an in-flight breathing gas supply source (not shown) such as an oxygen cylinder installed in the aircraft when the pilot P boards the aircraft. It is configured to be detachably connected to the gas purifier 10 when the pilot P operates in a contaminated environment such as an airfield. Further, the gas purifier 10 is configured to be detachably connected to a breathing gas supply source 11.

Next, the operation of the embodiment having the above-described configuration will be explained.

While the pilot P is on board a non-contaminated aircraft, the flexible tube 5 is removed from the connection part 4 of the helmet H. In addition, the connector unit 9 is connected to a respiratory gas supply source (not shown) such as an oxygen cylinder installed in the aircraft (in this state, the pilot P can connect the gas from the respiratory gas supply source in the aircraft). breathe.

When the operator P operates in a contaminated environment such as an airport, the operator P connects the flexible pipe 5 to the connecting portion 4 and connects the connector unit 9 to the gas purifier 10. Then, the operator P places the gas purification pressurizer 7 on his shoulder, and places the gas purifier 10 and the breathing gas supply source 1 connected thereto.
1 in hand and take action. At this time, the gas purified by the gas purifier 7a is supplied from the gas purification pressurizer 7 to the gas ejection pipe 3 through the flexible pipe 5 and the connecting portion 4.

The gas ejected from the gas ejection pipe 3 causes the operator P to
A gas curtain is formed around the head of the head, so the head is shielded and protected from surrounding contaminant gases. Further, the operator P supplies the breathing gas supplied from the breathing gas supply source 11 to the gas purifier lO, the connector unit 9, and the flexible pipe 8.
and breathe through mask M.

Although the embodiments of the present invention have been described above in detail, the present invention is not limited to the embodiments described above, and various small design changes may be made without departing from the scope of the invention described in the claims. It is possible to do so.

For example, it is also possible to omit the gas purifier 10 and directly connect the breathing gas supply source 11 to the connector unit 9. Moreover, it is also possible to use a compressed air cylinder instead of the gas purification pressurizer 7.

C0 Effects of the Invention The aforementioned helmet of the present invention prevents the skin of the helmet wearer's head from contacting the outside contaminated air by the curtain of gas ejected from the gas ejection pipes disposed at the periphery of the helmet body. can be prevented from coming into direct contact.

Moreover, since the helmet does not have a connecting part to the protective clothing,
Light and easy to move.

[Brief explanation of drawings]

Figure 1 is an explanatory diagram of one embodiment of the helmet of the present invention, Figure 2 is an explanatory diagram of an embodiment of the helmet of the present invention.
The figure is an explanatory diagram of the usage state of the helmet of the same example. DESCRIPTION OF SYMBOLS 1... Helmet body, 3... Gas ejection pipe, 4... Linkage part, 7... Gas supply source for curtain formation, Patent applicant Shimadzu Corporation, patent attorney Takahide Tanaka and one other person Figure 1 Figure 2

Claims (1)

[Claims] A gas ejection pipe for ejecting gas for forming a gas curtain is provided at the peripheral edge of the helmet body, and a connection part is provided that is connected to the gas ejection pipe and is detachably connected to an external gas supply source. Helmet.