KR101278338B1 - Safty cover of gas-mask and menufacturing method for the same - Google Patents

Abstract

PURPOSE: A bandana for gas mask and a manufacturing method thereof are provided to seal overlapped regions while overlapping edges of cloth without attaching seam tape around the overlapped regions. CONSTITUTION: A bandana for gas mask comprises a fiber layer consisting of fibers; a bandana body (10) which includes a complex fiber consisting of chemical resistant film layer which is adhered to the fiber layer and blocks chemical poisonous substance; a transparent lens (20) which is fixed to the bandana body and blocks to enable a user to see through a lens hole of the bandana body; a lens fastener which integrally fixes the transparent lens on a film layer of the complex fiber which consists the inner surface of the bandana body; a shielding film which elastically seals a neck part and blocks lower part of the bandana body; a fastener (50) which integrally fixes a septic tank to a combining hole; and a tightening string (60) which covers the rear side of the bandana body, combines both ends of the combining hole, and seals the rear part of the bandana body to head by pulling both ends.

Description

Hood for gas mask and manufacturing method thereof {SAFTY COVER OF GAS-MASK AND MENUFACTURING METHOD FOR THE SAME}

[0001] The present invention relates to a hood for a respiratory mask which can be blocked by the head to cover the inflow of toxic substances in a CBR warfare (chemical, bio-logical and radiological warfare) situation, and a method for manufacturing the hood.

In general, gas masks are to be worn on the face to prevent toxic substances such as toxic chemical gases generated in emergency situations such as chemical warfare, biological warfare, or radioactive attack from entering the human body. These respirators protect the wearer and allow the wearer to escape from the contaminated area to the safe area.

Herein, the above-mentioned gas mask can be manufactured in the form of a rubber mask, but it can be manufactured by a method of manufacturing a gas mask for a glued hood type and a hood for a respiratory mask for use therewith according to Registration No. 10-1072529 , Hereinafter referred to as " prior art ").

1, the outer surface is joined by the ventricular ring tape S, so that the adhesive type hood 1 is manufactured which is not a sewing type. The hood 1 is equipped with a lens L and a nose mask 3 as shown in Fig. 1, and a tightening strap 5 and a purifier 2 are mounted.

However, the hood 1 of the prior art has a problem in that it is troublesome to manufacture since the sealing is performed only after the edges of the fabric 10 are overlapped and then the seam tape S is adhered or fused to the overlap portion. (10).

In the prior art, since the adhesive is applied to the hood 1 along the lens hole of the hood 1 in order to attach the lens L to the hood 1, the lens L is adhered, There is a problem that toxic gas due to the adhesive is generated during the bonding process.

Also, the prior art has a problem in that the above-described bonding process is carried out even when the unshown shielding film which shields the neck around the head is inserted into the hood.

KR 10-1072529 B1

The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a hood for a gas mask which can seal an overlapping portion while superimposing a rim of a fabric without attaching a core tape to an overlapping portion of the fabric. That is the purpose.

It is also an object of the present invention to provide a hood for a gas mask which can attach a sight lens and a rubber film to a hood body without applying an adhesive to the inner surface of the hood body and a method for manufacturing the hood.

Gas mask hood according to the present invention for achieving the above object is provided with a purifying tank for purifying the air is supplied by the purified air by the purifying tank is supplied with an exhaust valve for discharging the internal air to the outside air In the gas mask for communicating the gas, the fiber layer and the film layer attached to the fiber layer and the chemical film layer to block the chemical toxic substances attached to the fiber layer, so that the fiber layer and the film layer respectively on the outer surface and the inner surface Formed, the edge of the film layer constituting the inner surface of the composite fabric is fused in an overlapping state to form a sealing line of the sealing state is formed in the form of a bag, the coupling hole is connected to the purifying container is formed through, the lens hole in the front Hood body which penetrates and covers the head to cover the head; A perspective lens fixed to the hood main body to shield the lens hole of the hood main body so as to be transparent; A lens fastener for integrally fixing the perspective lens to the film layer of the composite fabric constituting the inner surface of the hood body; A shielding film which is horizontally provided in the hood main body and is inserted into the head and which hermetically seals the neck portion to shield the lower portion of the hood main body; A fastener provided on the coupling hole to integrally fix the female genitalia to the coupling hole; And a fastening strap which wraps the rear of the hood body and is respectively coupled to both ends of the fastener, and the rear end of the hood body is in close contact with the head as both ends are pulled.

The lens fastener is, for example, attached to the film layer constituting the inner surface of the hood body is integrally attached along the edge of the lens hole, the attachment frame of the fiber formed in the form of a thin film frame; And a first hot melt on one side of which is adhered to a surface of the attachment frame, and the perspective lens is bonded to the other side in a laminated state to fix the perspective lens to the attachment frame.

The blocking film is formed of, for example, an annular thin film made of the same composite fabric as the hood body, and a connection film attached to the inside of the lower end of the hood body in a horizontal state while the outer edge is bent; The inner membrane of the connecting membrane is fixed in a horizontal state, a head insertion hole is provided in the center, and the head is inserted into the neck, and the neck is elastically sealed through the contraction of the head insertion hole so that the chemical or toxic substance is the hood. Rubber film to block the penetration of the inside of the main body; And a fixing member integrally fixing the outer edge of the rubber membrane to the fiber layer of the composite fabric constituting the inner edge of the connecting membrane.

The fixing member may be attached along the inner edge of the connecting film while one side is bonded to the fiber layer of the connecting film, and the hot melt is bonded to the other side to the outer edge of the rubber film.

The present invention further includes a tightening strap holder provided on the hood main body to restrain the tightening strap in a locked state behind the hood main body, wherein the tightening strap holder has a hole shape in the sealing line provided at the rear of the hood main body. It is formed as a locking hole that is caught while passing through the drawstring; is preferably configured as.

On the other hand, the manufacturing method of the gas mask for the gas mask according to the present invention, by attaching a chemical film layer that blocks the chemical toxic substances on one side of the fiber layer made of a fiber material to produce a composite fabric; A step of fabricating a hood fabric by cutting the composite fabric to form a straight cut portion at the center of the upper portion, forming a triangular shaped triangular portion at both sides of the cut portion, and forming a lens hole and a coupling hole at the front; A hood body manufacturing step of fabricating a hood body in the form of a bag having an open bottom by attaching the cut-out portion of the hood fabric and the rim of the triangular portion in an overlapped state with the fibrous layer forming the hood fabric forming a surface; A first turnover step of turning the hood body upside down to expose the film layer forming the hood fabric outward; Attaching a perspective lens to the film layer of the hood main body exposed by the first turnover step so as to sealably cover the lens hole of the hood main body; A second turnover step of reversing the hood body attached to the film layer to expose the film layer formed on the lower portion of the hood body outward; A rubber film fixing step of horizontally fixing a rubber film having a head insertion hole formed in the film layer exposed in a lower portion of the hood main body; And a third turnover step of inverting the hood body to which the rubber film is attached again to its original state.

The hood body manufacturing step may include, for example, overlapping the edges of the film layer constituting the hood fabric while overlapping the edges of the cutout and the triangular portion of the hood fabric, overlapping the film layer; And a sealing fusion step of fusion of the edges of the overlapped film layers by ultrasonic waves, high frequency waves, or heat to form a sealing line in a sealing state.

In addition, the hood body manufacturing step may further include a; tightening strap holder forming step of forming a through hole in a portion of the sealing line formed by the sealing fusion step.

The lens attaching step may include, for example, an attachment frame manufacturing step of cutting a fiber fabric to manufacture an attachment frame having a frame shape corresponding to the edge of the lens hole of the hood body; An attachment frame attaching step of attaching the attachment frame to the exposed film layer along the outer edge of the lens hole; A hot melt laminating step of laminating a hot melt and an edge of the see-through lens along the attachment frame; And a lens fixing step of integrally fixing the edge of the see-through lens to the hood body by heating and cooling the hot melt.

The fixing step of the rubber film may include, for example, cutting the composite fabric to produce a connection film formed of an annular thin film; Hot melt lamination step of laminating a hot melt and the outer edge of the rubber film along the inner edge of the connection film; Attaching the rubber film integrally to the rubber film by heating and cooling the hot melt; And attaching an outer edge of the connecting film to which the rubber film is attached to the hood body, and attaching the film layer of the connecting film to the exposed film layer of the hood body by ultrasonic wave, high frequency or heat. Can be.

In the gas mask according to the present invention and a manufacturing method thereof, since the edge of the film layer constituting the composite fabric is fused in an overlapping state to form a sealing line, the hood body can be easily manufactured without attaching a seam tape.

Further, since the perspective lens and the rubber film are fixed to the fiber layer of the hood main body by the lens fastener and the fixing member without the application of the adhesive, the attachment process is easy and toxic gas due to the adhesive is not generated during the adhesion process.

In addition, as the attachment frame of the fiber constituting the lens fastener is provided on the film layer along the outer edge of the lens hole, the first hot melt is adhered to the film layer through the attachment frame of the fiber material, so that the perspective lens is firmly fixed to the film layer. Can be.

In addition, since the lower portion of the hood body is shielded as the barrier membrane elastically seals the neck, toxic gas does not penetrate into the hood body.

In addition, since the rubber film constituting the blocking film is bonded to the connecting film by the second hot melt constituting the fixing member, the outer edge of the rubber film can be firmly fixed to the connecting film while forming a sealing state.

In addition, the fastening straps are restrained on the rear of the hood body by the fastening strap holders, thereby preventing the tightening of the fastening straps. Can be.

1 is a perspective view showing a hood for a respirator according to the prior art;
2 is a perspective view showing a hood for a gas mask according to the present invention;
3 is a longitudinal sectional view of the hood for the respiratory mask shown in Fig.
4 is an exploded perspective view showing a state in which the perspective lens is attached to the hood body.
5 is an exploded perspective view showing adhesion of a rubber membrane and a connecting membrane.
6 is a rear perspective view showing the back surface of the hood main body;
7 is a flowchart showing a process of manufacturing a hood for a gas mask according to the present invention.
8 is a conceptual diagram showing a hood body manufacturing step shown in FIG.
9 is a longitudinal sectional view showing the step of adhering the rubber film shown in Fig.

Hereinafter, with reference to the accompanying drawings will be described in detail an embodiment of the present invention. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted.

2 and 3, the hood for a gas mask according to the present invention includes a hood body 10, a perspective lens 20, a lens fastener 30, a shielding film 40, a fastener 50, and a pull string 60 ).

As shown in FIGS. 2 and 3, the hood main body 10 is a member for shielding the wearer's head. The hood main body 10 is formed in the shape of a bag to cover the head and extend downward to shield the shoulder portion of the wearer. 3, the hood body 10 is composed of a composite fabric composed of a fibrous layer 11 constituting a surface and an chemical-resistant film layer 12 constituting an inner surface, and the edges of the composite fabric are in a superimposed state And is formed into a bag-like shape.

The fibrous layer 11 is preferably formed of a thin fibrous material such as nylon fiber or aramid fiber, and the surface of the fibrous layer 11 may be printed with a speckle pattern. The chemical-resistant film layer 12 may be composed of a PE layer or a PET layer, and the PTFE layer may be further provided while being composed of a plurality of layers including a PE layer and a PET layer. The PTFE layer may be provided with activated carbon powder or granules or granules attached to the chemical toxic substance to be filtered.

Here, the hood body 10 is sealing line (S) of the sealing state as the edge of the film layer 12 constituting the inner surface of the composite fabric is fused with ultrasonic waves, high frequency or heat in an overlapping state as shown in enlarged in FIG. It is formed in a bag shape while forming a. That is, since the film layer 12 is made of chemical fibers, the sealing layer S is formed while being melted by fusion in an abutting state. Thus, the hood body 10 can be manufactured without a sewing process or a seam sealing process to attach a separate seam tape.

As shown in FIG. 4, the hood body 10 is formed with a hole 15 and a lens hole 16 penetrating the entire surface thereof. The hood body 10 includes a cleansing box (not shown) A nose mask 3 for supplying the air of the nozzle 2 and the nozzle 2 to the oral cavity and the nasal cavity is connected to the coupling hole 15 and the fluoroscopic lens 20 for shielding the lens hole 16 is fixed .

The perspective lens 20 is formed as a transparent body as shown in FIG. 3, and is transparently shielded from the lens hole 16 while being fixed to the hood body 10 by a lens fastener 30 to be described later.

The lens fastener 30 is a component for fixing the sight lens 20 to the inner surface of the hood main body 10 as shown in Fig. 3. For example, as shown in Fig. 4, the attachment frame 31 and the first hot melt (32).

As shown in FIG. 3, the attaching frame 31 is a member that is integrally attached to the film layer 12 as shown in FIG. 3, and is formed of a fiber material formed in the form of a thin film frame. The attachment frame 31 is fused to the film layer 12 along the rim of the lens hole 16 by ultrasonic waves, high frequency waves, or heat.

The first hot melt 32 is adhered to the surface of the attaching frame 31 as shown in FIGS. 3 and 4, and the perspective lens 20 is attached to the attaching frame 31 while the sighting lens 20 is adhered in a laminated state. As shown in Fig. The hotmelts are formed in the form of pellets or films as known in the art, and they are members that are heated and melted and solidified immediately by cooling to adhere the objects.

Here, while the first hot melt 32 is smoothly bonded to the fiber fabric, the first hot melt 32 may not be completely adhered to the film layer 12 of the hood body 10 due to poor adhesion, and the transparent lens 20 may also have a film layer 12. Since it is impossible to attach directly to the), it is adhered to the film layer 12 of the hood body 10 through the aforementioned attachment frame 32 of the fiber material. That is, the first hot melt 32 integrally fixes the perspective lens 20 to the film layer 12 through the attachment frame 32.

The shielding film 40 is provided horizontally on the inner side of the hood main body 10 and is inserted into the head so as to elastically seal the neck portion of the wearer to prevent poisonous gas or chemical gas from penetrating into the hood body 10 For example, a connecting membrane 41, a rubber membrane 42, and a fixing member 43 as shown in Fig.

5, the connecting membrane 41 is formed of the same composite fabric as the hood body 10, and is formed into an annular thin film. The hood body 10 (see FIG. 5) As shown in Fig. 3, it is preferable that the film layer 41a constituting the composite fabric and the film layer 12 of the hood main body 10 are fused while being in contact with each other, And is attached to the inner surface of the hood body 10 in a sealed state without a member such as a tape.

As shown in FIG. 5, the rubber film 42 is provided with a head insertion hole 42a at the center thereof, so that the shrinkage of the head insertion hole 42a Thereby sealing the neck circumferentially. This rubber film 42 is fixed in a horizontal state by a fixing member 43 which will be described later along the inner edge of the connecting membrane 41 as shown in enlarged view in Fig.

The fixing member 43 is a member for integrally fixing the outer edge of the rubber film 42 to the inner edge of the connection membrane 41 as shown in FIG. And a member for fixing the rubber film 42 to the fibrous layer 41b.

3 and 5, the fixing member 43 may be composed of a second hot melt, which is adhered to the fibrous layer 41b of the connection membrane 41 and the rubber membrane 42 is laminated and adhered. Here, since the second hot melt and the fibrous layer 41b are smoothly adhered to each other, the rubber film 42 can be firmly fixed to the connecting membrane 41 without a separate fiber member such as the above-described attaching frame 31. [

Meanwhile, as shown in FIG. 3, the shielding film 40 may exhaust the exhalation of the wearer who is provided with the exhaust valve 4 and discharged to the nose mask 3.

The fastener 50 is provided in the engaging hole 15 of the hood body 10 as shown in Fig. 2 so that the above-described cleansing cylinder 2 and the nose mask 3 are connected to each other through the hood body 10 in a ventilating manner .

As shown in FIG. 2, the fastener 50 is provided with a vent hole 50a communicating with the engaging hole 15, and is coupled to the purifying cylinder 2 and the nose mask 3, and an intake valve Thereby preventing the air inside the hood body 10 from flowing back to the outside. Here, the intake valve and the above-described exhaust valve 4 have the structure of a normal check valve that communicates air only in one direction, and thus the detailed description thereof will be omitted.

As shown in FIG. 6, the tightening strap 60 is a member for tightly attaching the rear portion of the hood body 10 to the head. And the hood body 10 is brought into close contact with the head as both ends are pulled. The articulation string 60 may be configured, for example, with an elastic band.

On the other hand, the tightening strap 60 can be restrained to the rear of the hood body 10 by the tightening strap holder 70 as shown in Fig.

The pull string holder 70 is a component that restrains a part of the pull string 60 in a state of being hooked to the back of the hood body 10 to prevent slack of the string holder 70. For example, And a latching hole 71 provided at the rear of the housing 10.

The catching hole 71 is formed in the shape of a hole in the sealing line S of the hood body 10 as described above and enlarged as shown in FIG. Here, since the sealing line (S) is formed while the film layer 12 of the hood body 10 is fused in an overlapping state as described above, the sealing line S is formed, thus maintaining the sealing state even when the engaging hole 71 is formed through. Can be. Therefore, the tightening band 60 can be prevented from sagging by engaging with the latching hole 71 without a separate member such as a ring.

On the other hand, the pull string 60 can be engaged with the fastener 50 by the locker 55 as shown in Fig. The locker 55 may be a member that locks or unlocks both ends of the clamping band 60 in a pulled state, and various configurations known to those skilled in the art may be employed.

A manufacturing method of a hood for a gas mask including the constituent parts as described above will be described.

The method for manufacturing a hood for a respiratory mask according to the present invention includes the steps of fabricating a complex fabric (S100), fabricating a hood fabric (S200), fabricating a hood main body (S300), performing a first turnover step (S400) A lens attaching step S500, a second turnover step S600, a rubber film fixing step S700, and a third turnover step S800.

The composite fabric manufacturing step S100 is a step of fabricating a composite fabric by attaching the chemical chemical film layer 12 to one side of the fiber layer 11 as shown in Fig. An adhesive is applied on one side of the chemical film layer 12 in the form of dots or meshes and the fibrous layer 11 and the film layer 12 are pressed together in an adhered state through a pressing member such as a roller to be integrally attached.

The hood fabric manufacturing step S200 cuts the composite fabric to form a cutout FA1 and a triangular portion FA2 as shown in FIG. 8, and as shown in FIG. 2, (15) to form a hood fabric.

The hood main body manufacturing step S300 is a step of manufacturing the bag-shaped hood main body 10 as shown in FIG. 8, wherein the edges of the cut-off portion FA1 and the triangular portion FA2 of the hood fabric are overlapped with each other ), The overlapped rim is fused with ultrasonic waves, high frequency waves or heat (S320) to manufacture the hood body 10. At this time, as the hood body 10 is fused in the state in which the edge of the film layer 12 constituting the hood fabric as shown in FIG.

On the other hand, after the hood body manufacturing step (S300) to form a sealing line (S), as shown in Figure 6 may be formed through the engaging hole 71 in a portion of the sealing line (S).

The first turnover step S400 is a step of completely inverting the pocket type hood main body 10 to expose the film layer 12 of the hood main body 10 outward as shown in Fig.

The lens attaching step S500 is a step of sealingly attaching the sighting lens 20 to the outer periphery of the lens hole 16 formed in front of the hood main body 10 as shown in Fig. The attaching frame 31 is integrally attached to the film layer 12 exposed to the outside (S520), and the surface of the attaching frame 31 The first hot melt 32 and the see-through lens 20 are stacked on the first hot melt 32 and the first hot melt 32 are heated and cooled to laminate the perspective lens 20 on the film layer 12 of the hood body 10 And is integrally fixed (S540).

The second turnover step S600 is a step in which the sight lens 20 is formed on the lower portion of the hood main body 10 as shown in Fig. 9 while reversing the hood main body 10 attached to the film layer 12 And exposing the film layer 12 to the outside, the lower portion of the hood body 10 is turned upside down and fixed horizontally through the jig JIG as shown.

The rubber film fixing step S700 is performed by attaching the rubber film 42 having the head insertion hole 42a to the lower portion of the hood body 10 as shown in Fig. ).

This rubber film fixing step (S700) is cut the composite fabric to form an annular connecting film 41 as shown in Figure 5 (S710), the second hot melt 43 along the inner edge of the connecting film 41 ) And the rubber film 41 are laminated (S720), and the second hot melt 43 is heated and cooled to integrally fix the rubber film 42 to the connecting film 41 (S730), as shown in FIG. As described above, the outer edge of the connection film 41 is fixed to the film layer 12 of the hood body 10 by fusion by ultrasonic waves, high frequency waves, or heat (S740). 9, the film layer 41a and the film layer 12 of the hood main body 10 are fused while being in contact with each other, and thus the connection film 41 is fixed while being sealed.

On the other hand, the rubber membrane fixing step S700 includes a pickling step of picking up the rubber film 42 cut in a ring shape to weaken the surface viscosity; And a neutralization step of neutralizing the picked-up rubber film 42 to neutralize acidity.

The pickling step and the neutralizing step are treated on the surface of the rubber film 42 in order to improve the adhesion of the rubber film 42. The rubber film 42 is immersed in an acid solution to pickle the surface of the rubber film 42. Thereafter, the surface of the rubber film 42 is neutralized by being immersed in an alkaline liquid such as ammonia.

In the third turnover step S800, the inner circumferential surface of the hood body 10 to which the rubber film 42 is attached is reversed back to complete the hood for the gas mask.

As described above, the gas mask for the gas mask according to the present invention and a method for manufacturing the same, because the edges of the film layers 12 constituting the composite fabric are fused in an overlapping state to form a sealing line (S), the hood body without attaching the seam tape ( 10) can be easily manufactured.

In addition, since the transparent lens 20 and the rubber membrane 41 are fixed to the fiber layer 11 of the hood body 10 by the lens fastener 30 and the fixing member 43 without applying the adhesive, the attachment process is easy. No adhesive gas is generated during the attachment process.

Since the attaching frame 31 of the fiber material constituting the lens fastener 30 is provided on the film layer 12 along the outer periphery of the lens hole 16 so that the first hot melt 32 adheres to the attaching frame 31 of the fiber material, So that the perspective lens 20 can be firmly fixed to the hood body 10. [0051] As shown in FIG.

As the shielding film 40 elastically closes the neck portion, the lower portion of the hood body 10 is shielded, so that the toxic gas does not penetrate into the hood body 10.

In addition, since the rubber film 42 constituting the blocking film 40 is adhered to the connection film 41 by the second hot melt constituting the fixing member 43, the outer edge of the rubber film 42 is sealed And can be firmly fixed to the connection membrane 41.

In addition, since the tightening strap 60 is restrained to the rear of the hood body 10 by the tightening strap holder 70, the drooping of the tightening strap 60 can be prevented, and the tightening strap holder 70 is connected to the aforementioned sealing line S. FIG. Since it is formed through the through hole 71 is fastened without a separate attachment such as a ring member can be caught.

In addition, when the shielding film 40 is attached to the inner circumferential surface of the hood body 10, the rubber film 42 and the connecting membrane 41 are adhered to each other while the lower inner circumferential surface of the hood body 10 is turned upside down and fixed in a horizontal state. The shielding film 40 can be easily attached to the inner circumferential surface of the hood body 10 while being easily attached thereto.

The embodiments described above are merely illustrative of preferred embodiments of the present invention, and thus the scope of application of the present invention is not limited to them, and appropriate modifications can be made within the scope of the same ideology. Therefore, since the shape and structure of each component shown in the embodiment of the present invention can be carried out by deformation, it is natural that the modification of the shape and structure belong to the appended claims of the present invention.

10: hood body 11: fibrous layer
12: Film layer 15:
16: Lens ball 20: Perspective lens
30: Lens fastener 31: Attachment frame
32: first hot melt 40:
41: connecting membrane 42: rubber membrane
42a: head insertion hole 43: fixing member
50: fastener 60: drawstring
70: Drawstring holder 71:
S: Sealing line 2: Purification container
3: Nose mask 4: Exhaust valve

Claims (10)

There is provided a hood for a respiratory mask which is provided with a purifier for purifying air, air purified by the purifier is supplied to the inside, and an exhaust valve for discharging the inside air to the outside,
The fiber layer and the film layer are respectively formed on the outer surface and the inner surface of the composite fabric is composed of a fiber layer made of a fiber material and a chemical film layer attached to the fiber layer to block chemical toxic substances, and the inner surface of the composite fabric The edges of the film layer are overlapped and formed in a bag shape while forming a sealing line in a sealing state. A coupling hole through which the purifying container is connected is formed through, and a lens hole is penetrated through the front surface to cover the head. Hood body;
A perspective lens fixed to the hood main body to shield the lens hole of the hood main body so as to be transparent;
A lens fastener for integrally fixing the perspective lens to the film layer of the composite fabric constituting the inner surface of the hood body;
A shielding film which is horizontally provided in the hood main body and is inserted into the head and which hermetically seals the neck portion to shield the lower portion of the hood main body;
A fastener provided on the coupling hole to integrally fix the female genitalia to the coupling hole; And
And a tightening strap which surrounds the rear of the hood main body and has both ends connected to both sides of the fastening hole and closely contacts the rear part of the hood main body as the both ends are pulled,
The blocking layer
A connecting membrane formed of an annular thin film made of the same composite fabric as the hood body and horizontally attached to the inside of the lower end of the hood body in a state where the outer rim is bent;
A head inserting hole is provided at the center of the connecting membrane and the head is inserted into the neck so that the neck is caught by the neck and the neck is elastically sealed through the contraction of the head inserting hole, A rubber film that blocks penetration into the interior of the body; And
And a fixing member integrally fixing the outer edge of the rubber membrane to the fiber layer of the composite fabric constituting the inner edge of the connecting membrane.
Wherein:
And a second hot melt adhered to the fibrous layer of the connecting membrane along an inner rim of the connecting membrane while adhering one side to the fibrous layer of the connecting membrane and adhering the other side to the outer rim of the rubber membrane. The lens fastener according to claim 1,
An attaching frame of a fiber material integrally attached along the rim of the lens hole while being attached to the film layer constituting the inner surface of the hood main body and formed in the form of a thin film frame; And
And a first hot melt which is adhered to one side of the surface of the attaching frame and the sighting lens is adhered to the other side in a laminated state to fix the sighting lens to the attaching frame. delete delete The method of claim 1,
A tightening strap holder provided on the hood main body to restrain the tightening strap in a state of being held behind the hood main body;
Wherein the tightening-
Hood formed for the gas mask, characterized in that formed in the form of a hole in the sealing line provided in the rear of the hood body is caught through the fastening string is passed through. A method of manufacturing a hood for a respirator,
A composite fabric manufacturing step of fabricating a composite fabric by attaching an chemical chemical film layer which blocks chemical toxic substances to one side of a fibrous layer made of a fibrous material;
A step of fabricating a hood fabric by cutting the composite fabric to form a straight cut portion at the center of the upper portion, forming a triangular shaped triangular portion at both sides of the cut portion, and forming a lens hole and a coupling hole at the front;
A hood body manufacturing step of fabricating a hood body in the form of a bag having an open bottom by attaching the cut-out portion of the hood fabric and the rim of the triangular portion in an overlapped state with the fibrous layer forming the hood fabric forming a surface;
A first turnover step of turning the hood body upside down to expose the film layer forming the hood fabric outward;
Attaching a perspective lens to the film layer of the hood main body exposed by the first turnover step so as to sealably cover the lens hole of the hood main body;
A second turnover step of reversing the hood body attached to the film layer to expose the film layer formed on the lower portion of the hood body outward;
A rubber film fixing step of horizontally fixing a rubber film having a head insertion hole formed in the film layer exposed in a lower portion of the hood main body; And
And a third turnover step of reversing the hood main body to which the rubber film is attached,
The rubber film fixing step,
A connecting membrane manufacturing step of cutting the composite fabric to produce a connecting membrane formed of an annular thin film;
A hot melt laminating step of laminating a hot melt and an outer edge of the rubber film along an inner edge of the connecting membrane;
A rubber film attaching step of heating and cooling the hot melt to integrally adhere the rubber film to the connecting film; And
Attaching the outer edge of the connection membrane with the rubber film to the hood body while the film layer of the connection film is a connection membrane adhesion step of fusion by ultrasonic or high frequency or heat film layer of the exposed hood body; Hood for gas mask comprising a Manufacturing method. The method of claim 6, wherein the hood body manufacturing step,
A film layer superimposing step of superimposing the edges of the film layer constituting the hood fabric in a state of being in contact while overlapping the edges of the cut portion and the triangle portion of the hood fabric; And
Sealing fusion step of forming a sealing line of the sealing state by fusion of the edge of the superimposed film layer by ultrasonic waves, high frequency or heat. According to claim 7, wherein the hood body manufacturing step,
And a tightening strap holder forming step of penetrating a hook hole in a portion of the sealing line formed by the sealing fusion step. 7. The method of claim 6,
An attachment frame manufacturing step of cutting a fiber fabric to produce a frame-type attachment frame corresponding to a rim of the lens hole of the hood body;
Attaching the attachment frame to attach the attachment frame along the outer periphery of the lens hole while attaching the attachment frame to the exposed film layer;
A hot melt laminating step of laminating the edges of the hot melt and the transparent lens along the attaching frame; And
And a lens fixing step of heating and cooling the hot melt to integrally fix the rim of the sight lens to the hood main body. delete

Images