TWI564052B - Fastening loop unit for gas mask - Google Patents

Description

Gas mask for gas mask

The present invention relates to a gas mask, and more particularly to a ring unit for a gas mask, which can greatly enhance the support rigidity of a joint ring of a mask to which an upper side band of a wound brain cover is attached, and which is easy to manufacture and can be manufactured. unit price.

It is well known that anti-virus masks are used to prevent toxic substances of toxic chemical gases generated in critical situations such as chemical warfare, biological warfare or radioactive energy from entering the human body and being worn on the face. This anti-virus mask protects the wearer from the wearer from the contaminated area to the safe area.

Such a gas mask has a mask for sealing a face, a see-through window provided on an upper portion of the mask, a purifying cartridge provided on the side of the mask, and an exhaust unit provided at a central portion below the mask.

Further, the posterior brain cover surrounding the rear brain of the wearer is detachably coupled to the mask, and a headscarf or a helmet or the like is worn over the rear brain cover connected to the mask as needed.

On the upper side edge of the posterior brain cover, a plurality of upper side straps are extended to the outside, and a plurality of side straps are extended on the left and right side edges of the posterior brain cap. In response to this, the left and right side edges of the mask are provided with a buckle to detachably fix the side joint band of the rear brain cover, and the upper edge of the mask has a ring to detachably fix the upper side joint band.

Here, the end of the upper side bonding tape is provided with a Velcro buckle, and the end of the upper side bonding tape is fixed to the ring according to the combination of the Velcro buckle wound around the ring of the mask.

However, the conventional gas mask is wound around the ring with the upper side band of the posterior brain cover, so that the thickness thereof becomes thicker, and the wound portion of the upper side band protrudes in the thickness direction of the ring, whereby the protruding portion is matched. The headscarf worn over the back of the brain cover is hooked or pressed by the helmet to stimulate the scalp to cause pain.

In order to compensate for such a disadvantage, the present invention solves the problem that the upper side bonding band protrudes in the thickness direction of the connecting ring when the upper side bonding band of the rear brain cover is wound around the connecting ring (loop) of the mask. The shortcomings of causing pain caused by being caught by a headscarf or being pressed by a helmet are proposed by the applicant of the present invention in Korean Patent No. 10-1278436 (filed on June 24, 2013, hereinafter referred to as "previous patent"). The above structure.

However, according to the above prior patent, even if the connecting ring (loop) built-in reinforcing material is used as the insert, since the upper side edge of the mask is integrally protruded, if the upper side band of the back cover is repeatedly pulled, the connection is made. The ring is easily damaged or broken and the life of the gas mask is shortened.

Further, in the conventional gas mask, the insert molding of the reinforcing material is additionally required in the connecting ring (the collar), so that the manufacturing procedure becomes complicated, and the manufacturing unit price is increased.

The present invention has been made to solve the above-described problems of the prior art, and an object of the present invention is to provide a ring unit for a gas mask, which can greatly enhance the support rigidity of a joint ring of a mask to which an upper joint band of a wound brain cover is attached. And it is easy to manufacture and can reduce the manufacturing unit price.

The present invention for achieving the object is a ring unit for a gas mask that is fixed as an upper side band of a wound brain cover, and includes a ring portion having an insertion hole for inserting an upper side band of the back brain cover; And the insertion portion is integrally formed at a lower portion of the ring portion, and is inserted into the upper edge of the rubber material mask according to the insert molding, and the ring portion and the insertion portion are made of a thin metal plate.

One or more fixing holes are formed in the insertion portion, and the fixing holes are hardened by the rubber material filled in the mask during the insert molding, so that the insertion portion is fixed to the upper side edge of the mask.

The ring portion has a pair of side hook portions provided on the left and right sides of the insertion hole, an upper hook portion provided at an upper portion of the insertion hole, and a lower hook portion provided at a lower portion of the insertion hole.

The lower hook portion of the ring portion is inserted into the upper side edge of the mask together with the insertion portion.

The lower hook portion has a larger amplitude than the upper hook portion, and accordingly, the insertion hole is formed in a trapezoidal shape.

The insertion portion has a smaller amplitude than the lower hook portion, and the hook end is symmetrically extended on both left and right sides of the insertion portion.

The hook portion is formed by bending the both ends of the lower hook portion in a "匚" shape.

A winding roller is rotatably disposed at the upper hook portion.

The thickness of the ring portion is less than the thickness of the upper side edge of the mask.

One side of the insertion portion is provided with an inclined surface which is formed obliquely so that its amplitude becomes narrower toward the reverse side of the ring portion.

According to the present invention, the ring unit of the thin metal plate is insert-molded to the upper side edge of the rubber material mask, so that the support rigidity of the upper side bonding belt of the posterior brain cover can be greatly improved, since the ring unit is composed of a highly rigid metal thin plate, even if the upper side is combined The belt is repeatedly pulled, and the insertion hole is prevented from being excessively stretched, and the ring portion is not damaged or damaged, the service life of the gas mask can be prolonged, and the structure is easy to insert the ring unit into the upper edge of the molding mask. Manufacturing, can significantly reduce the manufacturing unit price.

According to the present invention, in the middle of insert molding of the insertion portion of the ring unit, the liquid rubber is filled in the fixing hole of the insertion portion to be hardened, so that the insertion portion is very firmly fixed to the upper edge of the mask, whereby the ring unit can be realized. The sturdy support is rigid.

According to the present invention, as the lower hook portion of the ring portion is inserted into the upper edge of the mask together with the insertion portion, the coupling force of the ring unit is enhanced, whereby the support rigidity of the ring unit can be greatly improved.

According to the present invention, since the width of the lower hook portion is wider than that of the upper hook portion, the insertion portion of the lower hook portion is increased and can be more firmly coupled into the upper edge of the mask. In particular, the insertion hole is formed by a trapezoidal shape, and the whole can be improved. Rigidity.

According to the present invention, the insertion portion can be incorporated into the upper side edge of the mask with a stronger bonding force according to the hook end.

According to the present invention, the hook bent end of the lower hook portion can be coupled to the upper side edge of the mask with a stronger bonding force.

According to the present invention, the upper side band of the posterior brain cover inserted into the insertion hole is wound into the ring portion very quickly and easily by winding the roller, whereby the fixation of the upper side band of the posterior brain cover can be more easily realized. .

According to the present invention, the thickness of the upper side edge of the mask is greater than the sum of the thickness of the ring portion and the thickness of the upper side bonding belt that is fastened to the ring portion, whereby the upper side bonding tape of the rear brain cover is wound around the insertion hole. In the fixed state, it is possible to prevent the upper side from being brought to the mask. The upper side edge protrudes in the thickness direction, whereby the problem that the headscarf worn over the rear brain cover is caught or pressurized by the helmet to stimulate the scalp to cause pain can be effectively prevented.

An advantage of the present invention is that the insertion portion can be more firmly fixed to the upper side edge of the mask because one side of the insertion portion forms an inclined surface.

10‧‧‧Anti-virus mask

11‧‧‧ mask

11a‧‧‧Upper edge

12‧‧‧ Perspective window

13‧‧‧purification cartridge

14‧‧‧Exhaust unit

16‧‧‧ hook

20‧‧‧ ring unit

21‧‧‧ Ring Department

21a‧‧‧Upper hook

21b‧‧‧Lower hook

21c, 21d‧‧‧ side hooks

22‧‧‧Insert Department

22a‧‧‧Sloping surface

23‧‧‧Insert hole

24‧‧‧Fixed holes

26a, 26b‧‧‧ hook end

27a, 27b‧‧‧ hook department

28‧‧‧ winding roller

29‧‧‧

30‧‧‧Back brain cover

31‧‧‧Side joint belt

32‧‧‧Upper joint belt

33‧‧‧ buckle

T‧‧‧ Thickness of the upper edge

Thickness of the t1‧‧‧ ring

T2‧‧‧ Thickness of the upper joint band

1 is a perspective view showing a gas mask in which a ring unit for a gas mask according to an embodiment of the present invention is applied; FIG. 2 is an enlarged perspective view showing an arrow A of FIG. 1 enlarged; and FIG. 3 is a view showing a first aspect of the present invention. 1 is a plan sectional view showing a state in which the upper side bonding band of the rear brain cover is wound and fixed on the ring unit of the gas mask of the embodiment; and FIG. 4 is a plan sectional view showing a modification of the ring unit according to the first embodiment of the present invention. 5 is a front view showing a ring unit according to a first embodiment of the present invention; and FIG. 6 is a front view showing a state in which a ring unit according to a second embodiment of the present invention is inserted and coupled to an upper side edge of a mask; 7 is a front view showing a state in which the ring unit according to the third embodiment of the present invention is inserted and joined to the upper side edge of the mask; and FIG. 8 is a view showing the ring unit inserted and coupled to the upper side of the mask according to the fourth embodiment of the present invention; Front view of the state of the edge; and Fig. 9 is a front view showing a state in which the ring unit according to the fifth embodiment of the present invention is inserted and joined to the upper side edge of the mask.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. For the sake of easy understanding, the size of the constituent elements, the thickness of the lines, and the like in the drawings referred to in the description of the present invention may be exaggerated. Further, the terms used in the description of the present invention are defined in consideration of their functions in the present invention, and may differ depending on the intention of the user, the user, and the convention. Therefore, the definition of these terms should be based on the overall content of this specification.

1 to 5 are views showing a ring unit for a gas mask according to an embodiment of the present invention.

As illustrated in FIG. 1 , the gas mask 10 includes a mask 11 that seals the entire face; The see-through window 12 is disposed at an upper portion of the mask 11; the purifying cartridge 13 is disposed at a side of the mask 11; the exhaust unit 14 is disposed at a lower central portion of the mask 11; and the posterior brain cover 30 is coupled to the rear of the mask 11 Wear the back of the head.

The posterior brain cover 30 is formed in a mesh shape, and is outwardly located on the upper side edge of the posterior brain cover 30. A plurality of upper side coupling bands 32 are extended, and a plurality of side joint bands 31 are extended on the left and right side edges of the back brain cover 30, and a buckle 33 is provided at the end of the side joint band 31.

Corresponding to this, the left and right side edges of the mask 11 are provided with hooks 16 for detachably fixing The side of the rear brain cover 30 is joined to the buckle 33 of the belt 31, and the upper side edge 11a of the mask 11 is provided with the ring unit 20, and the upper side coupling belt 32 is detachably fixed.

In addition, the end of the upper side coupling band 32 of the posterior brain cover 30 is provided with a Velcro buckle. The end of the upper side bonding tape 32 is wound around the ring unit 20 and fixed to the ring unit 20 with the combination of the Velcro buckle.

The ring unit 20 according to the present invention, as shown in FIGS. 2 and 3, includes: a ring portion 21, the upper side coupling band 32 of the rear brain cover 30 is wound and fixed thereto; the insertion portion 22 is provided at a lower portion of the ring portion 21.

The ring portion 21 has an insertion hole 23 for inserting the upper side coupling band 32 of the rear brain cover 30, and the insertion hole 23 is formed in a quadrangular hole shape corresponding to the four-corner cross-sectional shape of the upper side coupling band 32. Therefore, the ring portion 21 includes a pair of side hook portions 21c and 21d provided on the left and right sides of the insertion hole 23, an upper hook portion 21a provided at an upper portion of the insertion hole 23, and a lower portion provided at a lower portion of the insertion hole 23. Hook portion 21b (as shown in Fig. 5).

The thickness t1 of the ring portion 21 is smaller than the thickness t of the upper side edge 11a of the mask 11, and therefore, the thickness t of the upper side edge 11a of the mask 11 is larger than the thickness t1 of the ring portion 21 and the thickness of the upper side coupling tape 32 which is wound to the ring portion 21 and fixed. The sum of (t2+t2) (t T1+t2+t2). According to this, in a state in which the upper side coupling tape 32 of the rear cranial cover 30 is wound around the insertion hole 23 and fixed, the upper side coupling band 32 is surely prevented from protruding in the thickness direction of the upper side edge 11a of the face mask 11, thereby being able to effectively prevent being A turban that is worn over the back of the brain cover is hooked or pressurized by the helmet to stimulate the scalp to cause pain.

The insertion portion 22 is integrally formed at a lower portion of the ring portion 21, and is inserted into the upper side edge 11a of the rubber material mask 11 by insert molding.

Further, the ring portion 21 and the insertion portion 22 of the ring unit 20 are made of a thin metal plate.

As described, the present invention is insert molded into a rubber material by a ring unit 20 of a thin metal plate. The upper side edge 11a of the material mask 11 can greatly increase the support rigidity of the upper side coupling tape 32 of the rear brain cover 30, and accordingly, since the ring unit 20 is made of a metal thin plate having high rigidity, even if the upper side coupling tape 32 is repeatedly pulled, It is also possible to prevent the insertion hole 23 from being excessively stretched and contracted, without fear of damage and breakage of the ring portion 21, to extend the service life of the gas mask, and since it has a structure in which the ring unit 20 is insert-molded to the upper side edge 11a of the mask 11, it is easy Manufacturing, can significantly reduce the manufacturing unit price.

One or more fixing holes 24 are formed in the insertion portion 22, and the insertion portion 22 is insert molded into In the middle of the upper edge 11a of the mask 11, the liquid rubber is filled and fixed to the fixing hole 24 of the insertion portion 22, and the insertion portion 22 can be fixed to the upper edge 11a of the mask 11 very strongly, whereby the ring unit 20 can be realized. The sturdy support is rigid.

And, as illustrated in FIG. 5, the amplitude of the insertion portion 22 is smaller than the lower portion of the ring portion 21. Hook portion 21b.

According to an embodiment, as illustrated in FIG. 3, the insertion portion 22 and the ring portion 21 may have The same thickness.

According to an alternative embodiment (variation), as illustrated in FIG. 4, the insertion portion 22 One side forms an inclined surface 22a, and the inclined surface 22a is formed obliquely, and the width thereof becomes narrower toward the opposite side of the ring portion 21.

The insertion portion 22 can be more firmly inserted and coupled according to the inclined surface 22a. The upper side edge 11a of the mask 11 can thereby effectively achieve a stronger support rigidity of the ring unit 20.

Further, as shown in FIGS. 2 and 3, the lower hook portion 21b is provided with the insertion portion 22 The same is inserted into the upper side edge 11a of the mask 11. Further, in order to make the lower end of the insertion hole 23 of the ring portion 21 at the same height as the upper side edge 11a of the mask 11, the lower hook portion 21b is inserted and coupled.

As described, the lower hook portion 21b of the ring portion 21 is embedded together with the insertion portion 22. The inner peripheral edge 11a of the mask 11 is molded, and the bonding force of the ring unit 20 can be reinforced, whereby the support rigidity of the ring unit 20 can be greatly improved.

Figure 6 is a view showing a ring unit 20 according to a second embodiment of the present invention, the lower portion of which is hung The hook portion 21b has a larger amplitude than the upper hook portion 21a, and thus the insertion hole 23 is formed in a trapezoidal shape.

As described, according to the second embodiment of the present invention, the amplitude of the lower hook portion 21b The insertion portion of the lower hook portion 21b is increased larger than the upper hook portion 21a, so that it can be more firmly coupled into the upper side edge 11a of the mask 11, and in particular, since the insertion hole 23 has a trapezoidal shape, it can be improved. Overall rigidity.

Figure 7 is a view showing the ring unit 20 according to the third embodiment of the present invention, the insertion portion The amplitude of 22 is smaller than that of the lower hook portion 21b, and the hook ends 26a, 26b are symmetrically extended to the left and right sides at both ends of the insertion portion 22. According to such hook ends 26a, 26b, the insertion portion 22 can be incorporated into the upper side edge 11a of the mask 11 with a greater bonding force. Further, the outer surfaces of the hook ends 26a and 26b are formed with the uneven portion 29, and according to the uneven portion 29, the bonding force of the hook ends 26a and 26b can be further enhanced.

Figure 8 is a view showing a ring unit 20 according to a fourth embodiment of the present invention, with "匚" The hook-shaped hook portions 27a, 27b are formed symmetrically at both ends of the lower hook portion 21b, and according to the hook portions 27a, 27b, the lower hook portion 21b can be coupled to the upper side edge 11a of the mask 11 with a larger bonding force. . Similarly to this, the uneven portions 29 can be formed on the outer surfaces of the hook portions 27a and 27b, and the joint force of the hook portions 27a and 27b can be further enhanced by the uneven portions 29.

Figure 9 is a view showing a ring unit 20 according to a fifth embodiment of the present invention, a winding roller The sub-spring 28 is rotatably provided to the upper hook portion 21a. According to this, the upper side coupling band 32 of the posterior brain cover 30 inserted into the insertion hole 23 can be wound around the ring portion 21 very quickly and easily by winding the roller 28, whereby the upper side of the posterior brain cover 30 can be more easily realized. The fixed work of the belt 32 is combined.

The embodiments of the present invention have been described above, but the present invention is not limited to the embodiments and the drawings disclosed in the present specification, and various modifications can be made by those skilled in the art without departing from the scope of the technical idea of the present invention. .

11a‧‧‧Upper edge

22‧‧‧Insert Department

23‧‧‧Insert hole

24‧‧‧Fixed holes

32‧‧‧Upper joint belt

T‧‧‧ Thickness of the upper edge

Thickness of the t1‧‧‧ ring

T2‧‧‧ Thickness of the upper joint band

Claims (1)

A ring unit for a gas mask, the ring unit for a gas mask for fixing the upper side band of the wound brain cover, comprising: a ring portion having an insertion hole for inserting an upper side band of the rear brain cover; and an insertion portion Formed integrally in a lower portion of the ring portion, inserted into the upper edge of the rubber material mask according to insert molding; the ring portion and the insertion portion are formed of a thin metal plate, and the insertion portion is formed with one or more fixing holes, The fixing hole is hardened by the rubber material filled in the mask during the insert molding, so that the insertion portion is fixed to the upper side edge of the mask; the ring portion has: a pair of side hook portions disposed on the left and right sides of the insertion hole; a hook portion is disposed at an upper portion of the insertion hole; and a lower hook portion is disposed at a lower portion of the insertion hole, and the lower hook portion of the ring portion is inserted into the upper side edge of the mask together with the insertion portion.