JP2000303245A - One unit type dust-preventing mask with helmet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a one unit type dust-preventing mask with a helmet useful in a working place where powdery dust or radioactive dust are generated by installing an air-sucking port, a filter and a fan at the upper part of the helmet, and a shield at its side surface. SOLUTION: This one unit type mask with helmet is provided by installing an air-sucking port 2, a filter 4 and a fan 3 at the upper part of a full face type helmet, a battery 5 at its side surface and a shield 6 at its front surface. A worker wears the one unit type dust-preventing mask with a helmet over his head and actuates the fan 4 by turning on a switch of the battery 5. The flowing in air from the air-sucking port 2 thereby is filtered by the filter 3, and the cleaned air gets into the helmet 1 and exhausted from the lower part of the helmet. The worker breathes the above cleaned air.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a helmet-integrated dust mask in a work place where dust and radioactive dust are generated.

[0002]

2. Description of the Related Art Conventionally, in a workplace where radioactive dust or the like is generated, such as a nuclear facility, equipment for covering the entire body has been used for the purpose of preventing radioactive dust from the respiratory system of an operator from being taken into the body. This equipment includes a hood-shaped mask 11, a battery unit 12, a connection hose 13 as shown in FIG.
Consists of The battery unit 12 has an intake port in which a filter is loaded, and air that is taken in from the filter unit and purified by the filter is sent into the hood-shaped mask 11 through the connection hose 13, and the inside of the mask is subjected to a positive pressure. It is to be.

In a normal work place, a half-cap type helmet 14 is mounted on a hood-shaped mask 11 for the purpose of protecting the head.

[0004]

The above prior art is composed of a hood-shaped mask, a battery unit, and a connecting hose, so that it takes a long time to attach and detach the same.
Furthermore, a half-cap type helmet is mounted thereon.

[0005] During the work, the connection hose may be twisted and the air supply may be insufficient, the inside of the helmet may not be maintained at a positive pressure, and the battery unit at the waist may interfere with the work. The hose also makes workability worse.

Further, since the battery unit is located at the waist, a large amount of dust easily enters the filter unit due to the working posture, and in a place where the working place is narrow, the contamination of walls, articles, curing sheets and the like directly adheres to the filter unit. Easy to do.

[0007] The hood-shaped mask 11 and the connection hose 13 are almost disposable and have a poor reuse rate.

[0008] In the work in which water may be scattered, in order to prevent contamination of the body, it is used together with an anorak protective clothing, but in this case, processing such as cutting out the anorak protective clothing to secure the intake of the filter unit. There was a necessary problem and improvement was desired.

[0009]

SUMMARY OF THE INVENTION A helmet-integrated dust mask according to the present invention protects a wearer's head and, at the same time, has an air inlet at the top of the head, so that a fan (power source is a battery) can be connected to the air inlet. The air taken in by the operation is purified by the filter 4 and exhausted from the lower end of the helmet, so that the inside of the helmet is always kept at a positive pressure, so that dust and radioactive dust can be prevented from being sucked into the body. It is assumed that.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. In FIG. 2, reference numeral 1 denotes a helmet for protecting the head, the outer surface of which is formed of smooth plastic to cover the wearer's head. 2 is an intake port which has many small holes so that air can be taken in. Reference numeral 3 denotes a filter that removes dust and radioactive dust and has the ability to pass only purified air. This filter can be easily replaced by a cartridge type by removing the intake port. Reference numeral 4 denotes a fan for sucking air from an intake port. Reference numeral 5 denotes a battery which is wired to the fan and is a power source for operating the fan. Also,
Battery 5 is installed on the left and right of helmet 1,
During use, if one battery dies and does not work, the other can operate as a backup. Reference numeral 6 denotes a shield formed of transparent plastic, which secures the view of the wearer.

As a function of the dust mask, when assuming work in a work place where radioactive dust is present, such as a nuclear facility, the worker puts the helmet-integrated dust mask on his head, turns on the battery 5, and turns on the battery 5. Then, the fan 4 is operated. As a result, the air flowing in from the air inlet 2 is filtered by the filter 3, and the purified air enters the helmet 1 and is exhausted from the helmet lower part 7. By breathing the purified air, the worker can work even in a work place where radioactive dust is present without ingesting into the body by breathing. Further, since the air is constantly flowing through the head and the face, there is no humid heat received by the worker, the fatigue is reduced, and the workability is improved.

[0012]

According to the present invention, the helmet, the hood, the battery unit, and the connection hose, which have been conventionally divided into one, become one, thereby improving workability and facilitating attachment and detachment. Interference disappears even when used in combination. Further, the trouble due to the twisting of the hose is eliminated and the safety is improved.

[0013] Also, by making the air intake port at the top of the head,
Dust and radioactive dust do not easily flow in, and direct adhesion of contamination due to contact between the suction port and a wall or an article can be reduced.

[0014] In terms of re-use, it has been almost disposable in the past, but it is smooth and easily decontaminated and can be used many times.

[Brief description of the drawings]

FIG. 1 shows a helmet-integrated dust mask according to the present invention.
It is a front view showing an example.

FIG. 2 is a side view showing a mounted state of the helmet-integrated dust mask according to the present invention.

FIG. 3 is a front view of a conventional food mask and a battery unit mounted state.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Full face type helmet, 2 ... Inlet, 3 ... Inlet fan, 4 ... Filter, 5 ... Battery, 6 ... Shield, 7 ... Helmet lower end, 11 ... Food mask, 12
... battery unit, 13 ... connection hose, 14 ... safety helmet.

Claims (1)

[Claims] 1. A helmet-integrated dust mask comprising an intake port, a filter, a fan, a battery on a side surface, and a shield on a front surface of the helmet.