KR101210808B1 - Full face mask for self-contained breathing apparatus - Google Patents

Abstract

PURPOSE: A full face mask for an air respirator is provided to protect a wearer from poisonous gas in a dangerous environment like a fire scene. CONSTITUTION: A full face mask for an air respirator comprises a mask body(10), a lens(20), a lens holder(30), a connector(40), and a fastening band(50). The mask body is formed with a see-through hole for securing field of vision and an insertion brim along the circumference of the see-through hole. The lens closes the see-through hole. The lens holder fixes the lens to be separated from the mask main body. The connector is connected to an air inhaler, supplies air into the mask body, and exhausts the air to the outside. The fastening band fixes the connector to a breathing hole.

Description

FULL FACE MASK FOR SELF-CONTAINED BREATHING APPARATUS}

The present invention relates to a full face mask for an air respirator, and more particularly, an air respirator pool capable of protecting a wearer from toxic gases in a dangerous environment such as a fire scene by being connected to the air respirator while shielding the face transparently. It is about a face mask.

Firefighters who extinguish a fire receive air from the fire site through an air supply. The air supply device supplies the air of the air box loaded in the form of a backpack on the back of the firefighter as a mask worn on the face of the firefighter. These masks play an important role in protecting the firefighters from toxic gases by communicating with the air in the respirator while transparently shielding the firefighter's face.

As a mask of the prior art, there is a mask for preventing air respirators disclosed in Korean Utility Model Publication No. 20-2010-1153.

The mask of the prior art, as shown in Figure 1 is a viewing window 22 is installed on the face portion 20 to protect the wearer's face, the breathing apparatus 30 is connected to the oxygen tank of the respirator, the lower part of the viewing window 22 Is installed in, is provided with a tension strap 24 around the face portion 20 is worn in close contact with the head.

Accordingly, the wearer performs the work while moving to a state of view secured through the viewing window 22 while breathing through the breathing apparatus 30.

However, the mask of the prior art has a problem that the field of view is limited because the see-through window 22 shields only the front of the face portion 20 as shown in FIG. 1. Specifically, since the operator can only secure the view of the front through the see-through window 22 and cannot secure the view of the lower part, the operator needs to look down to see the lower part.

This problem causes a danger to the worker at the site of the stairs or obstacles, especially when it is difficult to secure the field of view by the smoke, such as a fire scene, it is more dangerous and hassle.

Here, the mask of the prior art has a wide viewing window 22 is provided to some extent to secure a lower field of view, but because the viewing window 22 is formed of the same curvature, there is a problem that the lower field of view is refracted to blur the image.

KR 10-2010-0001153 U

The present invention was created in order to solve the problems of the prior art as described above, while being worn on the face and connected to the air respirator, while wearing a mask to protect the face of the wearer while breathing, mask through the lens to mask the body through the mask An object of the present invention is to provide a full face mask for an air respirator capable of securing the front view of the main body as well as the lower view of the main body of the mask.

The full-face mask for an air respirator of the present invention for achieving the above object, in a full face mask for an air respirator connected to the air respirator while being worn on the face to shield the face transparently, a perspective view for ensuring visibility A mask body through which a through hole is formed, and through which a breathing hole communicatively connected to the air respirator is formed, a groove-shaped fitting frame is provided along a circumference of the see-through hole; A lens coupled to the fitting frame of the mask body to transparently shield the see-through hole; A lens holder having a frame shape to detachably fix the lens to the mask body while fixing the edge of the lens in the inserted state; A connector which is connected to the air respirator in a state coupled to the breathing hole of the mask body, and exhausts the air of the mask body to the outside while supplying air of the air respirator to the mask body; And a fixing band for binding the connector to the breathing hole while being coupled to the outside of the breathing hole, wherein the lens comprises: a lens body shielding the front of the mask body transparently; And extending lenses formed on both sides of the lens body while being the same as the lens body to provide a field of view under the mask body.

For example, the extension lens preferably extends in a bent state at an angle with the lens body.

For example, the lens holder is provided with a receiving groove for accommodating the insertion frame is inserted into the edge of the lens, the first holder for receiving a portion of the insertion frame together with the lens in the receiving groove; A second holder provided with the same receiving groove as the first holder and fixing the lens to the fitting frame together with the first holder while accommodating the rest of the fitting frame in the receiving groove; And a fixing bolt fastened to a connection portion between the first holder and the second holder to fix the first holder and the second holder in a frame shape.

The lens holder further includes reinforcing means for reinforcing the rigidity of the first holder and the second holder to prevent separation of the lens and the fitting frame accommodated in the accommodating groove. At least one reinforcement provided along the outer circumference of the first holder and the second holder, protruding from the other side of the receiving groove to form a groove to provide an elastic force to the end of the receiving groove to prevent the opening of the receiving groove. It is preferable that a rib;

The present invention further includes a flow preventing member for supporting a portion of the lens holder to prevent the flow of the lens, wherein the flow preventing member is provided with a through hole through which the fixing band passes. As it is fixed to the lower portion of the lens holder, a support block having a stepped support is supported in a part of the lens holder is preferably configured.

As described above, the full-face mask for an air respirator according to the present invention provides a field of view in front of the mask body through the lens body, as the lens body and the extension lens are configured to penetrate the see-through hole of the mask body. At the same time, since the view of the lower part of the mask body is provided through the extension lens, the lower part of the eye can be secured without the wearer's head down, thereby improving safety.

Furthermore, as the extension lens extends in a bent state at an angle with the lens body, the lower field of view can be clearly provided without refraction.

In addition, since the first holder and the second holder constituting the lens holder are fixed to the frame by the fixing bolts while accommodating the fitting frame and the lens together in the respective receiving grooves, the lens can be detachably assembled to the fitting frame of the mask body. Can be fixed.

In addition, as the rigidity is reinforced by the reinforcing means composed of the reinforcing ribs of the first holder and the second holder, the opening of the accommodation grooves provided in the first holder and the second holder is prevented, thereby preventing the lens from being detached from the fitting frame. have.

1 is a perspective view showing a full face mask for an air respirator according to the prior art.
Figure 2 is a front view showing a full face mask for an air respirator according to the present invention.
Figure 3 is a partial cutaway cross-sectional view showing a full-face mask for the respirator according to the present invention.
4 is a front view and a longitudinal sectional view showing a mask body of the present invention.
5 is a front view showing the lens of the present invention.
6 is an exploded perspective view showing the lens holder of the present invention.
Figure 7 is an exploded perspective view showing a connector of the present invention.

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

The full face mask for an air respirator according to the present invention includes a mask body 10, a lens 20, a lens holder 30, a connector 40, and a fixing band 50 as shown in FIGS. 2 and 3. Can be configured.

Mask body 10 is a member that is worn on the face, as shown in Figure 4 through-holes for securing the field of view is formed through, the groove-shaped fitting frame 13 along the periphery of the through-hole 11 The lens 30 to be described later is provided is coupled, the breathing hole 12 is provided in the lower portion of the see-through hole 11 is coupled to the connector 40 to be described later.

The mask body 10 is worn on the head by a fastening strap 15 provided at one side as shown in FIG. 3 to respiratoryly shield the face, and a nose mask (NM) as shown in FIGS. 2 and 3. ) Is respiratoryly shielding the wearer's mouth and nasal passages.

As shown in FIG. 3, the lens 20 is coupled to the mask body 10 in a state where an edge is fitted to the fitting frame 13 to shield the see-through hole 11 transparently.

The lens 20 may include, for example, a lens body 21 and an extension lens 23 as shown in FIG. 5.

The lens body 21 transparently shields the front of the mask body 10 as shown in FIG. 2. That is, the lens body 21 provides a front view by shielding the eye area of the wearer like a normal lens.

The extension lens 23 forms the same body as the lens main body 21 as shown in FIG. 5 and is extended to both lower sides of the lens main body 21 to provide visibility under the mask main body as shown in FIG. 2. do. In other words, the extension lens 23 provides a view of the lower part by transparently shielding both cheeks of the wearer. Therefore, the wearer can secure the view of the lower part without bowing his head.

On the other hand, the extended lens 23 is preferably extended in a bent state forming an angle (AN) with the lens body 21 as shown in an enlarged view. Accordingly, the extension lens 23 can clearly provide the field of view under the mask body 10 without refraction.

As shown in FIG. 3, the lens holder 30 is a member for fixing the edge of the lens 20 to be fitted to the fitting frame 13. For example, as shown in FIG. It can be configured to include two holder 33 and the fixing bolt (35).

As shown in FIG. 3, the first holder 31 and the second holder 33 are respectively provided with the receiving grooves 30a, and as shown in FIG. 13 is accommodated in the receiving groove (30a) in a state that is fixed to the fitting frame (13) to form a frame shape while both ends are connected by a fixing bolt 35 to form a frame.

That is, the first holder 31 receives a portion of the fitting frame 13 together with the lens 20 in the receiving groove 30a, and the second holder 33 receives the remaining portion of the fitting frame 13 through the lens ( 20 and while accommodating in the receiving groove (30a) to form a frame shape with the first holder 31 by the fixing bolt 35 to fix the edge of the lens 20 inserted into the fitting frame (13). .

Accordingly, the lens 20 may be fixed to the mask body 10 in a prefabricated manner as part of the rim and the remaining part are fixed to the fitting frame 13 by the combination of the first holder 31 and the second holder 33. Can be.

The lens holder 30 may further include reinforcing means for reinforcing the rigidity of the first holder 31 and the second holder 33. For example, the reinforcing means may include at least one reinforcing rib 37 protruding along the outer circumference of the first holder 31 and the second holder 33 as shown in FIG. 3.

As shown in FIG. 3, the reinforcing rib 37 protrudes from the other side of the receiving groove 30a provided in the first holder 31 and the second holder 33, respectively, to provide rigidity at the end of the receiving groove 30a. Reinforce. Therefore, as the rigidity of the receiving groove 30a is reinforced by the reinforcing rib 37 of the first holder 31 and the second holder 33, the opening of the receiving groove 30a can be prevented, and thus the lens 20 and the fitting frame 13 is not detached from the receiving groove (30a) arbitrarily.

The connector 40 is connected to an air respirator (not shown) coupled to the breathing hole 12 of the mask body 10 as shown in FIGS. 2 and 3 to connect the air of the air respirator to the mask body 10. The air from the nose mask NM is exhausted to the outside while being supplied to the nose mask NM.

The connector 40 is, for example, a port frame 41 and a clamp 43 and a check valve fixed to the breathing hole 12 of the mask body 10 by a fixing band 50 to be described later, as shown in FIG. It may be composed of a 45, through the inlet (41a) provided in the port frame 41 to supply the air of the respirator into the mask body 10, the mask body 10 through the outlet (41b) Exhaust internal air to the outside.

The clamp 43 is coupled to the inlet 41a of the port frame 41 as shown in FIG. 7 so that the pressure regulator of the air respirator, not shown, is detachably connected, and the check valve 45 is connected to the port frame ( It is coupled to the outlet 41b of 41 to communicate only in one direction.

Here, the clamp 43 and the check valve 45 is a conventional member that is applied to the air respirator, so detailed description thereof will be omitted.

The fixing band 50 is coupled to the outside of the breathing hole 12, as shown in Figures 3 and 7 to fix the connector 40 in a state coupled to the breathing hole (12).

Meanwhile, the full face mask for an air respirator according to the present invention supports a part of the lens holder 30 described above as shown in FIGS. 2 and 3 to prevent the flow of the lens 20. It can be configured to include more.

The flow preventing member 60 passes through the fixing band 50 described above, for example, as shown in FIG. 7, and supports the lower end of the lens holder 30 as shown in FIG. 3. It can be configured as.

As shown in FIG. 3, the support block 61 is provided with a through hole 61a and is fixed to the lower portion of the lens holder 30 as the fixing band 50 is coupled while the fixing band 50 penetrates. 61b) is protruded to be supported while a part of the lens holder 30 is caught. Therefore, the lens 20 may provide a view without blurring while walking because the lens 20 is prevented from flowing as the lower end of the lens holder 30 is supported by the step 61b of the support block 61.

The operation of the full-face mask for an air respirator according to the present invention including the above components will be described.

The mask body 10 is worn on the head by a lanyard 15 as shown in FIG. 3 to transparently shield the face through the lens 20. At this time, the lens 20 has a receiving groove (1) as the rigidity of the receiving groove (30a) is reinforced by the reinforcing rib 37, the first holder 31 and the second holder 33 constituting the lens holder (30). Wear without departing from 30a).

The connector 40 supplies air to the nose mask NM by an air respirator connected to the inlet 41a as shown in FIG. 2, and supplies air from the nose mask NM through the check valve 45. Exhaust to the outside.

The lens 20 provides a view of the front through the lens body 21 while providing a view of the lower part through the extension lens 23, thereby securing a view of the front and the lower part of the wearer without the hassle of bowing down. At this time, the lens 20 ensures the field of view without flow as the lower end of the lens holder 30 is supported by the step (61a) of the support block 61.

As described above, according to the full-face mask for an air respirator of the present invention, the lens 20 for shielding transparently the see-through hole 12 of the mask body 10 includes a lens body 21 and an extension lens 23. As a result, the lens body 21 provides a view in front of the mask body 10, and at the same time, a view of the lower part of the mask body 10 is provided through the extension lens 23, thereby ensuring a lower view without the wearer's head. It is possible to improve the safety.

In addition, as the extension lens 23 extends in a bent state at an angle AN with the lens body 21, a lower field of view may be clearly provided without refraction.

In addition, while the first holder 31 and the second holder 33 constituting the lens holder 30 accommodates the fitting frame 13 and the lens 20 together in the respective receiving grooves 30a, the fixing bolt 35 Since the lens 20 is fixed in the form of a frame, the lens 20 may be detachably fixed to the fitting frame 13 of the mask body 10.

In addition, as the rigidity is reinforced by the reinforcing means composed of the reinforcing ribs 37 of the first holder 31 and the second holder 33, the receiving grooves provided in the first holder 31 and the second holder 33 ( Since the opening of 30a) is prevented, the lens 20 may be prevented from being arbitrarily separated from the fitting frame 13.

In addition, as the support block 61 fixed to the lower part of the lens holder 30 by the fixing band 50 supports the lower part of the lens holder 30 through the step 61b, the flow of the lens 20 is increased. Since it is prevented, the lens 20 may provide a forward and a lower view without shaking when walking.

While specific embodiments of the present invention have been described above by way of example, these are for illustrative purposes only and are not intended to limit the protection scope of the present invention. It will be apparent to those skilled in the art that various changes, substitutions, and alterations can be made therein without departing from the spirit of the invention.

10 mask body 11: perspective view
12: breathing hole 13: fitted frame
15: string 20: lens
21 lens body 23 extended lens
30: lens holder 31: first holder
33: second holder 35: fixing bolt
37: reinforcing rib 40: connector
41: Port Frame 41a: Inport
41b: outer 43: clamp
45: check valve 50: fixed band
60: flow preventing member 61: support block
61a: through hole 61b: stepped

Claims (4)

In the full-face mask for the respirator, which is worn on the face and connected to the respirator while shielding the face transparently,
A mask body through which a through-hole for securing a field of view is formed, a through-hole formed in communication with the air respirator, and through-holes formed, and a groove-shaped fitting frame is provided along the periphery of the see-through hole;
A lens coupled to the fitting frame of the mask body to transparently shield the see-through hole;
A lens holder having a frame shape to detachably fix the lens to the mask body while fixing the edge of the lens in the inserted state;
A connector which is connected to the air respirator in a state coupled to the breathing hole of the mask body, and exhausts the air of the mask body to the outside while supplying air of the air respirator to the mask body; And
And a fixing band fixed to the connector while being coupled to the outside of the breathing hole in a state coupled to the breathing ball.
The lens,
A lens body to shield the front of the mask body transparently; And
An extension lens formed in the same body as the lens body and extending on both lower sides of the lens body to provide a field of view under the mask body;
The extension lens,
Full face mask for an air respirator, characterized in that extending in a bending state at an angle with the lens body. delete The method of claim 1, wherein the lens holder,
A first holder for accommodating the fitting frame into which the edge of the lens is inserted and holding the fitting frame, and receiving a portion of the fitting frame together with the lens in the receiving groove;
A second holder provided with the same receiving groove as the first holder and fixing the lens to the fitting frame together with the first holder while accommodating the rest of the fitting frame in the receiving groove; And
And a fixing bolt fastened to a connection portion between the first holder and the second holder to fix the first holder and the second holder in a frame shape. The method of claim 3, wherein the lens holder,
Reinforcing means for reinforcing the rigidity of the first holder and the second holder to prevent the separation of the lens and the fitting frame accommodated in the receiving groove;
The reinforcement means,
At least one reinforcing rib provided along the outer circumference of the first holder and the second holder and protruding from the other side of the accommodation groove to provide rigidity at an end of the accommodation groove to prevent the opening of the accommodation groove; Full face mask for air respirator, characterized in that configured.

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