TW201811390A - An antipollution mask - Google Patents

Abstract

A face mask (1) of the antipollution mask type comprising a filter-carrier (2) and an interchangeable removable filter (11):, the filter-carrier being in the general form of a shell including air passages, presenting a front face, referred to as its "outside" face, and a rear face, or "inside" face, of concave shape suitable for enveloping the user's nose, mouth, and chin, and including side portions to which straps (8) are attached for retention around the user's head; and, the filter (11) being positioned against the inside concave face of the filter-carrier (2), preferably matching the shape of said concave face of the filter-carrier; the mask being characterized in that the retention straps (8) of the filter-carrier (2) co-operate with said filter in order to position it against the concave face of the filter-carrier.

Description

   Anti-pollution mask   

The invention relates to the field of protective masks, and more particularly to anti-pollution masks.

Anti-pollution masks, such as those used by cyclists, motorcyclists, or pedestrians, and those sold today, can be classified into two main types.

The general shape of the first type of mask is a shell shape, which is composed of a main body made of filter material, and together with the holding band, it passes around the ear of the user or around the back of the head. Due to its simple design, this filter is lightweight, but it is not pressed against the user's face. Furthermore, it must be replaced frequently: if the clamping strip is fixed to the filter, replace the filter with its clamping strip; or, if the strip is removable, replace only the filter body. In this case, there is a risk that the bands become misplaced or lost.

In order to keep the filters in place and pressed more tightly against the user's face, masks have been developed that include a filter holder and at least one internal filter, connected to the same or multiple filter cassettes. This mask of the second type creates the problem of fixing or fastening the filter and / or cassette in a filter holder. In some such masks, the box is formed into a substantially cylindrical outer shape made of a rigid material, which is fixed to a bracket for the filter, and sometimes the filter is also supported so as to be fitted into the filter. Inside the bracket. These rigid parts can be in contact with the user's face, and if the bracket for the filter is pressed against the face, it will cause unpleasant friction. For the filter cartridge does not include a mask, the plurality of engaging means have been proposed, for example, clip, push buttons, or even Velcro ^® type conjugate (the self-gripping strip). In all cases, these are components that are mounted or are directly mounted on the filter (push-buttons or Velcro ^® ), which complicates manufacturing and is therefore also costly, or indirectly (that is, removable (Except for joint elements), such elements become at risk of being left behind, for example when replacing filters.

    Object of the invention    

The first object of the present invention is therefore to remedy the disadvantages of the aforementioned masks, and to propose a second type of mask which is simplified and does not include removable elements other than suitable filters.

Another object of the present invention is to provide a filter-equipped mask which has a simple structure, is lightweight and inexpensive, and is easy to fit with a bracket for its filter.

    Elaborate    

These goals are achieved through a mask of the type of anti-pollution mask, which includes a filter holder and an exchangeable, removable filter: the filter holder is generally a shell with an air channel The shape presents a front surface called its "outer" surface, and a back surface suitable for covering (causing) the user's nose, mouth, and chin, or "inner" surface, and includes side portions, with retaining strips The belt is joined to one another (for passing around the head of the user); and the filter is positioned on the inner concave surface of the bracket for the filter, preferably conforming to the concave shape of the bracket for the filter.

According to the present invention, the mask is characterized in that the holding strip of the bracket for the filter cooperates with the filter, and the filter is positioned by passing the strip of the bracket for the filter through the opening in the filter. The concave surface of the bracket for the filter.

Therefore, placing and holding the filter inside the recess of the bracket for the filter, facing the air passage, does not require any additional clamps or engaging elements, because the strip performs this function. There is therefore no risk of leaving removable components behind. The design of this mask has also been simplified.

In certain cases, this does not exclude the addition of one or more optional additional gripper elements.

In an advantageous manner, the filter presents a central portion and side extensions, each side extension presenting at least one opening to allow the strip of the bracket for the filter to pass through.

These are provided in the openings in the filter, similar to the cheeks on the side, mainly as a strip of the bracket for the filter to pass through the opening, and then when the filter is embedded in the bracket for the filter In the state, keep the filter in place.

In the first variant implementation system, the opening for passing the strip of the bracket for the filter may be an opening provided in the extension of the filter, in the form of a slit or a small hole . The openings in the form of small holes are preferable, because firstly, the strip can be easily slid when inserted, and secondly, it can reach various user shapes (nose-ear angle), and / or around the head. The possible changes in the positioning of the strips, the better cooperation.

In the second variant, the opening for passing the strip of the bracket for the filter may be in the form of a ring or a flange, and is fixed to the side extension of the filter, for example, to the filter. Side edge.

In an advantageous manner, the side extension of the filter is made of a material which is reinforced with respect to the central portion of the filter, preferably reinforced by overlapping the materials constituting the filter. The filter can therefore be made from a single material without adding any material different from the filter material itself.

Preferably, the strip is fastened to the bracket for the filter by welding or stitching, so any loss of the strip is avoided. Only filters are removable. The strip is preferably made of an elastic material.

In order to have a better fit of the mask, the filter bracket may include a component on its top, which includes a metal part forming a nose clip, and the element forming the nose clip is preferably inserted into the filter. Between the outer surface and the inner surface of the bracket. Such devices can also limit the formation of fog when the user is wearing glasses.

The holder for the filter advantageously comprises a central part for passing breathing air. This may be a larger or smaller sized central hole, or in fact a central region, made of a porous material or a woven or nonwoven fibrous material.

The bracket for the filter may include a peripheral portion surrounding the central portion, and is made of a flexible material, preferably an extensible material, such as rubber or neoprene rubber type, so that the bracket for the filter can communicate with The user's face fits and presses on the face, and the surrounding portion selectively includes a vent.

The filter may be made of one or more layers of nonwoven fibrous material. For example, it can be made of one or more layers of meltblown nonwoven material to achieve the function of filtering polluted air, and it is inserted into an envelope made of a spunbond nonwoven material.

The mask of the present invention allows the filter holder to utilize a filter made of a very light and thin material (which provides excellent comfort for the user), while avoiding straining the material and therefore not tearing it Risk (as may occur on filters that require rigid gripper elements, such as buckles, hooks, snaps, etc.).

The mask of the present invention is mainly used by cyclists, motorcycle riders or pedestrians, the purpose is to protect them from air pollution when they move, but with filters of suitable properties, they can also be used in other fields Wearable by a user (eg, in a professional field).

1‧‧‧Mask

2‧‧‧ Filter bracket

3‧‧‧ Central Section

4‧‧‧ around

5‧‧‧ the top of the surrounding part

6‧‧‧Ventilation holes

7‧‧‧Clip for nose

8‧‧‧ strips

9‧‧‧ suture

10‧‧‧ strips

11‧‧‧ Filter

12‧‧‧ opening

13‧‧‧Material made of filter side extension

14‧‧‧ top edge of the filter

15d‧‧‧right side of the filter

15g‧‧‧ Left side of the filter

16‧‧‧ around the edge of the filter

17‧‧‧The main body of the filter

18‧‧‧ side extension of filter

20‧‧‧ users

F‧‧‧ Arrow

After reading the following description of the implementation system and referring to the attached drawings, the present invention can be fully understood, wherein: FIG. 1 is a front view of the mask of the present invention when placed on the user's face; FIG. 2 is a view of FIG. 1 A perspective view of the mask, the top of which is open to show the position of the clip for the nose; Figure 3 is a side view of the bracket for the filter in Figure 1, the strip is unfolded; Figure 4 is a view of the mask of the present invention A perspective view behind the two parts, showing how the straps of the bracket for the filter pass through the openings in the filter; Figure 5 is a perspective view behind the mask of the present invention, the filter is installed in the bracket for the filter Figure 6 is a view of the filter in an unfolded state; and Figure 7 is a side view of the filter in a formed state before it is inserted into a filter holder.

    Examples    

As shown in FIGS. 1 and 2, the mask 1 of the present invention is in the general form of a shell, and is used to be placed on the face of the user 20 to cover the nose, mouth and chin of the user, together with Part of the cheeks are simultaneously fixed by the back of the head via the band 8.

The mask is composed of a filter holder 2 and a removable filter 11, as can be seen in FIGS. 4 and 5.

The filter holder 2 includes a central portion 3 surrounded by a peripheral portion 4. In the embodiment described herein, the central portion conceals and protects the filter 11 while allowing air to pass easily through the mouth and nose of the user 20. For this purpose, the central part may be in the form of a porous material (a material made of woven or non-woven fibers). It can also be used as a pre-filter, for example to filter dust present in the air.

In this embodiment, the surrounding part 4 of the bracket for the filter constitutes a skeleton of the bracket for the filter via the supporting central portion, the buckle 7 for the nose, and the terminal for fastening the strap 8. The peripheral portion 4 is made of a flexible and extensible material, such as rubber or chloroprene rubber, so that the mask 1 is pressed against the user's face. However, it includes a series of ventilation holes 6 which are in direct communication with the filter 11 on the lower level.

In the embodiment shown in the drawings, the first terminal of each band is fastened near the side edge of the peripheral portion 4 of the bracket 2 for the filter via a seam 9. The other terminals of the strip are linked together behind the user's head via a self-gripping strip 10.

Clip 7 for nose, which is a type of nose clip, which includes a metal element and is arranged in the top portion 5 of the peripheral portion of the filter holder between the inner surface and the outer surface of the filter holder . Figure 2 shows its position with the top open (the clip 7 is usually not visible: see Figure 3).

The filter 11 also has a shell-like general shape to closely conform to the shape of the concave inner surface of the bracket 2 for the filter. The filter is composed of a main body 17 and two side extensions 18 having small hole-like (for example, circular) openings 12 formed therein, as shown in Figs. 4, 5, 6, and 7 By. These openings are used to pass a strip 8, which is passed along the arrow F shown in FIG. The diameter of these openings 12 is preferably slightly larger than the width of the strip 8.

Therefore, the filter 11 is easily placed on the concave surface of the filter holder 2 as shown in FIG. 5.

An example of a filter is shown in Figs. In the unfolded state, before installation, the filter has left and right wings 15g and 15d, which are subsequently assembled together by welding along the top edge 14 thereof. The peripheral edge 16 of the filter 11 is also welded to strengthen the surrounding area and, if appropriate, to join together the multiple layers constituting the filter. Finally, as shown in FIGS. 6 and 7, the side extension 18 of the filter in the area in which small openings are formed may be made of material 13, which is formed, for example, by forming at least one layer of the filter The materials of the device overlap and strengthen.

Claims (10)

    A mask (1) of an anti-pollution mask type, comprising a filter bracket (2) and an interchangeable and removable filter (11): the filter bracket (2) is provided with The general form of the shell shape of an air channel presents a front face called its "outer" face, and a concave back face, or "inner" face, suitable for covering the nose, mouth and chin of a user, and includes On the side, a retaining strip (8) is joined to each other; and the filter (11) is positioned on the inner concave surface of the filter bracket (2), preferably conforming to the concave shape of the filter bracket The feature of the mask is that the holding strip (8) of the bracket for the filter cooperates with the filter (11) by passing the strip of the bracket for the filter through the opening in the filter to The filter is positioned on the concave surface of the bracket (2) for the filter.         For example, the mask (1) in the scope of patent application, wherein the filter presents a central portion (17) and side extensions (18), each side extension has at least one opening (12), so that The strip (8) of the bracket (2) for the filter passes.         For example, the mask (1) in the scope of patent application, wherein the opening (12) for passing the strip (8) of the bracket (2) for the filter is the one provided to the filter. The openings in the extension are in the form of slits or small holes, and are preferably in the form of small holes.         For example, the mask (1) in the scope of patent application, wherein the opening (12) for passing the strip (8) of the bracket (2) for the filter is in the form of a ring or a flange and is fixed to The side extension of the filter.         For example, the mask (1) in any one of claims 2 to 4, wherein the side extension (18) of the filter is made of a material (13), which is opposite to the center of the filter The part is reinforced, preferably reinforced by overlapping the material constituting the filter (11).         For example, the mask (1) according to any one of claims 1 to 4, wherein the strip (8) is fastened to the bracket (2) for the filter by welding or stitching.         For example, the mask (1) of any one of claims 1 to 4, wherein the bracket (2) for the filter includes a component on its top (5), which includes a nose clip (7) Of the metal part, the element forming the nose clip is preferably inserted between the outer face and the inner face of the bracket (2) for the filter.         The mask (1) according to any one of claims 1 to 4, wherein the bracket (2) for the filter includes a central portion for passing breathing air, preferably a porous material, or Made of woven or non-woven fibers.         For example, the mask (1) of the scope of patent application, wherein the bracket (2) for the filter includes a peripheral portion surrounding the central area, the peripheral portion is made of a flexible material, preferably an extensible material, For example, the rubber or chloroprene rubber type allows the bracket (2) for the filter to conform to the user's face and be pressed against the user's face, and the surrounding portion selectively includes a vent hole.         For example, the mask (1) according to any one of claims 1 to 4, wherein the filter (11) is made of one or more layers of nonwoven fiber material.