TWI710390B - Mask with deflector - Google Patents

Abstract

The present invention is a mask with a flow guide, which includes a body with air permeability, which has an inner side surface, an outer side surface and two ends; two straps, which are elongated bodies, each of which has two ends Connected to each end of the body; a nose pad, which is a long strip body, and the nose pad is arranged on the inner side of the body relative to the area of the nose; a deflector, which is an air-impermeable sheet body, diversion One side of the piece is arranged on the upper edge of the body adjacent to the nose pad and covers the nose pad. When the user wears it, the guide piece is located between the nose and the body; thereby, the user can breathe in and exhale In the state, two channels of different sizes are formed by the deflector respectively, and a pressure difference is generated to press the deflector against the nose to increase the air tightness in the mask and improve the filtering effect.

Description

Mask with deflector

The invention relates to a mask, especially a mask with a flow guide.

Prior art masks, in which the mask system is composed of a sheet-like filter such as gauze, non-woven fabric, etc., which covers the mouth and nose of the user's face when used, but because the shape of the face is different, especially the undulation of the nose The condition is large and varies from person to person, often causing the mask to fail to fit the face. In order to solve this problem, I created and disclosed a mask using a preset curved nose foam as described in TW 200817063. It is adapted to fit on the nose and mouth of the user and has an inner surface that is concave and curved downward in the nose region of the mask body. The nasal foam has first and second opposed main surfaces and a Extending from the first major surface to the thickness of the second major surface, the first major surface of the nasal foam is fastened to the inner surface of the mask body in the nasal region, and the nasal foam The opposite second major surface can be used to substantially contact the nose of the user when the mask body is placed on the face of the user to increase its tightness.

However, in the prior art masks, the nasal foam that is installed on the nasal area relative to the user can be breathable or non-ventilated. When using breathable nasal foam, it is easy to cause Dust and haze can enter the mask from the nasal foam, or from the gap between the nasal foam and the user’s face, so that the user can inhale unfiltered dirty air, but if it is used without Breathable nasal foam increases the production cost due to the higher unit price of the material, and the above-mentioned masks with nasal foam have to prevent dust and haze from passing through the gap between the mask and the user’s face. Close to the user's face, it must be strengthened when it fits the face The tension of the elastic band makes it fully deform and fit tightly to conform to the shape of the nose to close the gap. However, the increased tension of the elastic band will cause discomfort when the user wears it for a long time; therefore, the mask of the prior art has an overall The structure has the aforementioned problems and shortcomings, and it needs to be improved.

In view of the shortcomings and deficiencies of the prior art, the present invention provides a mask with a flow guide, which can be guided by the fact that the nose pad and flow guide are arranged on the mask body, so that the pressure difference between the user when inhaling and exhaling The flow piece is attached to the nose to cover the gap, achieving the purpose of increasing the air-tightness of the mask without strengthening the tension of the elastic band.

In order to achieve the above-mentioned purpose of the invention, the technical means adopted in the present invention is to design a mask with a flow guide, which is used to cover the nose and mouth of a person. The mask with a flow guide includes: a body, which is A breathable sheet body with two ends, the body has an inner side and an outer side; two straps, the two straps are elongated bodies, and the two ends of each strap are connected to each end of the body A nose pad, which is a long strip body, the nose pad is provided in the area of the inner side of the body relative to the nose; a guide piece, which is an airtight non-woven sheet, the guide piece One side of the body is arranged on the upper edge of the body adjacent to the nose pad and covers the nose pad. When the user wears, the guide piece is located between the nose and the body, and the user is in an inhalation state Or in the state of exhalation, the other side of the guide piece abuts the nose.

Furthermore, in the mask with the air guide, the air guide replaces the air-impermeable non-woven fabric sheet with an air-impermeable plastic film body.

Furthermore, in the mask with a flow guide, the area of the flow guide is larger than the area of the nose pad.

Furthermore, in the mask with a flow guide, the length of the flow guide extending in the direction of the mouth is greater than the length of the nose pad extending in the direction of the mouth.

Furthermore, the mask with a flow guide member further includes a fixing member which is a flexible elongated body and is arranged on the outer side of the body relative to the nose pad.

Furthermore, the mask with a flow guide further includes a breathing valve, which is arranged on the body and can be selectively opened or closed.

Furthermore, in the mask with a flow guide, the two ends of the body are respectively penetrated with two perforations, and the two ends of each strap are connected to the two perforations of each end of the body.

The advantage of the present invention is that, because the nose pad and the deflector are arranged on the mask body, the user forms two channels of different sizes when the user inhales and exhales, thereby generating a pressure difference to press the deflector against the nose. When the user wears a mask, in addition to improving the tightness and comfort of the nose by the nose pad, the guide can also close the part that is not close between the nose pad and the nose, increasing The air tightness inside the mask improves the filtering effect.

10: body

11: Inside

12: Outer side

13: Piercing

20: strap

30: Nose pads

40: deflector

50: fixed parts

60: Nose

a: channel a

b: channel b

Figure 1 is a perspective view of the present invention.

Figure 2 is a rear view of the present invention.

Figure 3 is an exploded view of the present invention.

Figure 4 is a side sectional view of the present invention.

Fig. 5 is a schematic diagram of the inhalation air flow of the present invention.

Fig. 6 is a schematic diagram of the exhalation airflow of the present invention.

The following describes the technical means adopted by the present invention to achieve the intended purpose of the invention in conjunction with the drawings and preferred embodiments of the present invention.

Please refer to Figure 1, the mask with flow guide of the present invention is used to cover the nose and mouth of a person. The mask with flow guide includes a body 10, two straps 20, and a nose pad 30 , A guide piece 40 and a fixing piece 50.

Please refer to Figures 1 and 2, the main body 10 is an air-permeable sheet and has an inner side surface 11 and an outer side surface 12. Two perforations 13 penetrate through the two ends of the main body 10; in this embodiment, the main body One side of each end of 10 is formed in a wave shape, and the wave-shaped periphery of the end is formed with two wave crests. The two perforations 13 are respectively adjacent to the two wave crests. In detail, the main body 10 has a symmetrical shape. 13 penetrates adjacent to the two peaks, but not limited to this, the shape of the body 10 can be changed according to the user's needs, only to achieve the effect of covering the mouth and nose; in a preferred embodiment , The body 10 can be further provided with a breathing valve 70, the breathing valve 70 can selectively open or close the space connected to the inside and outside of the body 10 to improve the user's smooth exhalation, and the breathing valve 70 is a standard component of the prior art, its detailed structure No longer.

The two straps 20 are elongated bodies, and the two ends of each strap 20 are respectively connected to the two perforations 13 of each end of the body 10; in this embodiment, the strap 20 is an elastic rope, and the strap 20 To prevent the strap 20 from slipping out of the perforation 13 by tying a knot, adding an anti-dropping object, or ultrasonically bonding the strap 20 to the body 10, the strap 20 can be put on the ears of the human body to position the body 10 and cover the mouth And the nose, but not limited to this, the strap 20 can also be a long strip of non-woven fabric with elasticity, as long as it has a positioning function.

Please refer to Figures 3 and 4, the nose pad 30 is a long strip body, and the nose pad 30 is disposed on the inner side 11 of the body 10 relative to the nose; in this embodiment, the nose pad 30 may be a rubber sponge , Cavity Any breathable material such as ethyl formate foam, when the user puts on the mask, the nose pad 30 can be pressed against the shape of the user's nose.

The deflector 40 is an airtight sheet. One side of the deflector 40 is arranged on the upper edge of the body 10 adjacent to the nose pad 30 and covers the nose pad 30. When worn by the user, the deflector 40 It is located between the nose and the body 10 so that the nose and the nose pad 30 are divided into two regions; in this embodiment, the flow guide 40 is an airtight non-woven fabric or plastic film, but it is not limited to this. The effect of the deflector 40 separating the air flow drawn by or exhaled by the user into two channels of different sizes is sufficient, and the deflector 40 is a rectangular piece with one long side fixed on the body 10 at the nose pad At the position above 30, the fixing method can be joined by ultrasonic, and the area of the deflector 40 is larger than that of the nose pad 30, and the length of the deflector 40 toward the user’s mouth is longer than that of the nose pad 30 toward the user’s mouth The length extending in the direction of the upper part, that is, the lower edge of the deflector 40 is lower than the lower edge of the nose pad 30. The so-called lower edge is the side of the deflector 40 that extends downward when the user wears a mask.

The fixing member 50 is a flexible elongated body and is disposed on the outer surface 12 of the body 10 relative to the nose pad 30. In this embodiment, the fixing member 50 is a steel wire, which is used to align the body 10 with respect to the nose The area is shaped to conform to the outer shape of the nose, but it is not limited to this. The fixing member 50 can be any flexible material.

When the present invention is in use, it has an inhalation state and an exhalation state. Please refer to FIG. 5. In the inhalation state, external air respectively penetrates the breathable slits between the mask body 10 and the nose 60 and the deflector 40 Into the mask, where the guide 40 is used as the boundary to form two channels, the channel between the guide 40 and the nose 60 is channel a, and the channel between the guide 40 and the body 10 is Channel b. Channel a is squeezed by the nose pad 30 and formed into a slit. In other words, the cross-sectional area of channel a is smaller than that of channel b. Therefore, the airflow velocity of channel a will be greater than that of channel b. The faster the air pressure, the lower the air pressure, so the air pressure in channel b is greater than the air pressure in channel a, so that the air deflector 40 is affected by the pressure and abuts against the nose 60 to close the channel a, so that the outside air can only be passed from the mask body 10, that is, the area with filtering effect enters; please refer to Figure 6, in the exhalation state, the user exhales through the breathable body 10 of the mask and the breathable slit between the nose 60 and the deflector 40 respectively When the mask flows out, channel a is squeezed by the nose pad 30 and is formed as a slit. In other words, the cross-sectional area of channel a is smaller than that of channel b. Therefore, the airflow velocity of channel a will be greater than that of channel b because of the flow velocity The faster the air pressure is, the lower the air pressure, so the air pressure of channel b is greater than the air pressure of channel a, so that the deflector 40 is affected by the pressure and closes the direction of the nose 60 to close the channel a, so that the user can only exhale the air to channel b mobile. In this way, when the user wears the mask, in addition to improving the tightness and comfort of the nose 60 by the nose pad 30, the air guide 40 can also seal the gap between the nose pad 30 and the nose 60. The tight part increases the air tightness of the mask and improves the filtering effect.

The above is only the preferred embodiment of this creation, and does not impose any formal restriction on this creation. Although this creation has been disclosed as above in preferred embodiments, it is not intended to limit this creation. Any technical field has Generally knowledgeable persons, without departing from the scope of this creative technical solution, can use the technical content disclosed above to make some changes or modifications as equivalent embodiments of equivalent changes, but any content that does not deviate from this creative technical solution is based on this Any simple modifications, equivalent changes and modifications made to the above embodiments by the technical essence of the creation are still within the scope of the technical solution for creation.

10 Ontology 11 Inner side 12 External side 13 Piercing 20 straps 30 nose pads 40 Diversion parts 50 fixed parts 70 breathing valve

Claims (8)

A mask with a flow guide, which is used to cover the nose and mouth of a person. The mask with a flow guide includes: a body, which is a breathable sheet and has two ends, and the body has an inner Side and an outer side; two straps, the two straps are elongated bodies, the two ends of each strap are connected to each end of the body; a nose pad, which is a elongated body, the nose pad It is arranged on the area of the inner side of the body relative to the nose; a guide piece, which is an airtight non-woven sheet body, one side of the guide piece is arranged on the body adjacent to the nose pad The rim covers the nose pad. When the user wears it, the deflector is located between the nose and the body. When the user is in inhalation or exhalation, the other side of the deflector abuts In the nose. The mask with air guide according to claim 1, wherein the air guide replaces the air-impermeable non-woven fabric sheet with an air-impermeable plastic film body. The mask with a flow guide according to claim 1 or 2, wherein the area of the flow guide is larger than the area of the nose pad. The mask with a flow guide according to claim 3, wherein the length of the flow guide extending toward the mouth is greater than the length of the nose pad extending toward the mouth. The mask with a flow guide according to claim 4, further comprising a fixing member, which is a flexible elongated body and is arranged on the outer side of the body relative to the nose pad. The mask with a flow guide according to claim 5, further comprising a fixing member, which is a flexible elongated body and is arranged on the outer side of the body relative to the nose pad. The mask with a flow guide according to claim 6, which further comprises a breathing valve which is arranged on the body and can be selectively opened or closed. The mask with a flow guide according to claim 7, wherein the two ends of the body are respectively penetrated with two perforations, and the two ends of each strap are connected to the two perforations of each end of the body.

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