FR3071164A1 - QUART OF FILTERING RESPIRATORY PROTECTION MASK - Google Patents

Abstract

The present invention relates to a filtering respiratory protection mask (100) comprising at least one skirt (110) and a frame (120). The skirt (110) is configured to be elastically deformed and to be in contact with a user's face. The frame (120) forms a breathing enclosure (101) and has a stop (122), a receiving portion (123) for receiving a filter and a valve (124) to allow fluid communication between the breathing chamber ( 101) and the user's environment. The protective mask thus provides both an improved contact with the face of the user while adapting to many user morphologies.

Description

The field of the present invention relates to that of breathing masks and in particular that of respiratory protection masks. More specifically, the present invention relates to quarters of face masks which adapt to different sizes and shapes of faces so as to ensure a seal between the air filter and the face of the user while allowing the use of filters to custom air of varying thicknesses and compositions.

Nowadays, respiratory protection masks do not offer a sufficient seal and protection, especially for users making physical effort in an environment where the ambient air is polluted. Furthermore, respiratory protection masks include flexible or semi-flexible textile structures that do not allow sufficient sealing to be created on a multitude of faces and therefore under conditions of normal use. Respiratory protection masks often have uncomfortable structures, are often bulky, unattractive and do not allow glasses to be worn at the same time.

In addition, respiratory protection masks have valves directly on the filtration surface forcing them to be discarded and reducing the filtration surface.

The promises of efficiency as well as the standards cited by most of the manufacturers of respiratory protective masks are vague, attributed in ideal conditions of tests not reproducible in real conditions and often erroneous and poorly understood by the general public.

The aim of the present invention is to solve all or part of the drawbacks mentioned above in the form of a filtering respiratory protection mask comprising at least:

a skirt ; the skirt being configured to be elastically deformed and comprising at least:

- a contact portion; the contact portion being configured to be in contact with the face of a user of the filtering respiratory protection mask and to surround the nose and mouth of the user;

- a fixing base;

- A connecting wall being configured to connect the contact portion and the fixing base;

a frame forming a breathing chamber and comprising at least:

- stubborn ; the stopper being configured to be fixed with the fixing base and to surround the nose and mouth of the user;

- a reception portion: the reception portion being configured to receive a filter; and,

- a valve; the valve being configured to allow fluid communication between the breathing chamber and the user's environment;

the profile of the contact portion defining an imprint for the nose of the user surrounded by two nasal support portions, a support portion for the user's chin and lateral support portions for the cheeks of the user connecting the nasal support portions to the support portion for the chin and, the distance between the imprint of the user's nose and the support portion for the user's chin being between 50mm and 110mm;

the distance between the tops of the nasal support portions being between 19mm and 32mm;

the nasal impression comprising two lateral walls extending to the nasal supports and forming an angle with respect to one another between 25 ° and 36 °; and, the angle formed by the nasal support portions with respect to a horizontal plane being between 70 ° and 81 °.

Thanks to the arrangements according to the invention, the protective mask ensures both improved contact with the face of the user while adapting to many user morphologies.

According to one embodiment, the two portions of nasal supports form two convexities whose vertices are defined by an end region of the convexity situated opposite the maximum length of the connecting wall.

Thus, thanks to this arrangement, the mask adapts better to all body types.

According to one embodiment, the two portions of nasal supports are configured to cover all or part of the wings of the nose and the lobule of the user.

Thus, thanks to this arrangement, the user can wear the mask and a pair of glasses.

According to one embodiment, the contact portion forms a rim relative to the connecting wall, turned outward relative to the breathing chamber.

According to one embodiment, the contact portion forms a rim relative to the connecting wall, turned inwardly relative to the breathing chamber.

Thus, thanks to this arrangement, the rim turns outward and inwardly makes it possible to adapt to different morphologies without deforming the connecting wall, and at the same time strengthens the seal by tilting more than one dimension or the other of the connecting wall, depending on the size of the user's face.

According to one embodiment, the frame comprises a first frame and a second frame configured to cooperate with the first frame so as to hold the filter; the first frame is between the skirt and the filter, and the second frame is configured to be fixed to the first frame.

Thus, thanks to this arrangement, the filter can be changed regularly and easily.

According to one embodiment, the first frame comprises a first receiving portion configured to receive the filter and a second receiving portion to receive the valve facing the outside of the user.

Thus, thanks to this arrangement, the filter and the valve are very distinct and one does not interfere with the other in its function.

According to one embodiment, the first frame and / or the second frame comprises or comprise a set of reinforcing members configured to reinforce the first frame against the forces in torsion, traction, compression and / or in bending.

Thus, thanks to this arrangement, the filter is not deformed.

According to one embodiment, the second frame comprises at least one holding element configured to hold the filtering respiratory protection mask on the face of the user.

Thus, thanks to this arrangement, the mask is held in position.

According to one embodiment, said at least one holding element has a T-shape configured to cooperate with a retaining device comprising at least one loop; said at least one loop is configured to be inserted into one of the ends of the T-shape of said at least one holding element.

Thus, thanks to this arrangement, the mask can quickly be attached and detached from a strap.

According to one embodiment, the valve comprises a valve seat cooperating with a valve configured to move towards the outside of the filtering respiratory protection mask.

According to one embodiment, the valve is configured to allow only fluid communication from the breathing chamber to the environment of the user.

Thus, thanks to this arrangement, the valve allows the user to breathe out used air without having to pass through the filter.

According to one embodiment, the second frame comprises a protection member configured to create a protection zone for the valve in which the valve is free to be able to move towards the outside of the filtering respiratory protection mask.

Thus, thanks to this arrangement, the valve is not hampered in its function.

According to one embodiment, the frame is made of material harder than the skirt.

According to one embodiment, the first frame and / or the second frame are made of harder materials than the skirt.

Thus, thanks to this arrangement, the skirt can adapt to different morphologies, and the frame, made of material harder than the skirt, can maintain the outline without deforming the skirt.

According to one embodiment, the frame is designed with a certain thickness and a non-structural horizontal geometry.

Thus, thanks to this arrangement, the frame allows a slight deformation when tightening against the face and provides improved sealing, and strengthens the sealing between the filter and the mask.

According to one embodiment, the skirt is made of flexible material and preferably of flexible silicone.

Thus, thanks to this arrangement, the skirt is easily manufactured by compression molding.

The present invention also relates to a quarter of filtering respiratory protection mask comprising a filtering respiratory protection mask according to the invention.

Thus, thanks to this arrangement, the support portion for the chin is between the chin and the lower lip.

Other characteristics and advantages of the invention will appear better on reading the description which follows an embodiment of the invention given by way of nonlimiting example.

The invention will be better understood using the detailed description which is set out below and with reference to the drawings added to this file, in which:

FIG. 1 represents an example of a front view of a filtering respiratory protection mask 100 according to the invention;

FIG. 2 shows an example of a top view of a filtering respiratory protection mask 100 according to the invention;

FIG. 3 illustrates an example of an exploded view according to an embodiment;

Figure 4 shows an example of an exploded view of a skirt, a frame and a valve according to the invention;

Figures 5 and 6 show an example of a measurement point for the distance between the imprint of the user's nose and the support portion for the user's chin, the distance between the tops of the nasal support portions , the distance between the end of the impression of the nose and the tops of the nasal support portions and the angle formed by the nasal support portions with respect to a horizontal plane.

In the detailed description which follows of the figures defined above, the same elements or the elements fulfilling identical functions may retain the same references so as to simplify the understanding of the invention.

The invention, shown in Figure 1, relates to a filtering respiratory protection mask allowing a user to benefit from filtered and unpolluted air. This filtering respiratory protection mask 100 comprising at least one skirt 110, of flexible material such as for example silicone and preferably flexible silicone of Rockwell ShoreA40 flexibility to adapt to different morphologies comfortably, and a frame 120, of harder material that the skirt 110, preferably Shore D50 or more, so as to maintain the outline without deforming the skirt, otherwise the parts would detach from each other and nothing would hold in place.

The frame 120 forms a breathing chamber 101 making it possible to accommodate the nose and the mouth of the user and consists of a first frame 127 and a second frame 128, made of material harder than the skirt 110, configured to cooperate together and to maintain a filter. The frame is designed with a certain thickness and a non-structural horizontal geometry to allow a slight deformation when tightening against the face and ensure an improved seal, and reinforce the seal between the filter and the mask.

The skirt 110 includes a contact portion 111 configured to be in contact with the face of a user of the filtering respiratory protection mask 100 and to surround the nose and mouth of the user. The contact portion 111 has a convex shape and has a rim relative to the connecting wall 113, turned outwards and inwards relative to the breathing chamber 101.

The connecting wall serves as a structure to stiffen the outline, while the rim turns towards Γ outside and Γ inside makes it possible to adapt to different morphologies without deforming the connecting wall, and at the same time strengthens the sealing by tilting more d '' one side or the other of the connecting wall, depending on the size of the user's face: this rim being fixed in the middle, if Γ a force is exerted on the inner rim of the wall this pushes the rim outside against the face and vice versa if exerce one exerts a force on the outside edge of the wall that moves the inside edge away from the face.

The skirt also includes a fixing base 112 and a connecting wall 113. The connecting wall 113 is configured to connect the contact portion 111 and the fixing base 112 while ensuring both improved contact with the face of the user and by adapting to many user morphologies.

The fixing base 112 of the skirt 110 is configured to come into contact with a stop 122 of the frame 120. This stop 122 is intended to fix the fixing base having a set of openings intended to receive fixing lugs 129 present on the stop 122 in order to facilitate the assembly of the skirt 110 on the frame 120.

In FIG. 1 as in FIGS. 2 and 3, it can be observed that the second frame 128 comprises at least one holding element 126 configured to hold the filtering respiratory protection mask 100 on the face of the user. In fact, this retaining element 126, on either side of the second frame, has a T-shape configured to cooperate with a retaining device, a strap for example, comprising at least one loop. The loop is thus inserted into one of the ends of the T-shape of the retaining element 126 so as to allow the user to quickly attach and detach the mask from the strap.

The fixing lugs 129 of the stop 122, as mentioned above, are located on the first frame 127 and have, in fact, two uses: the first is to fix the skirt to the frame 120 and more particularly the skirt 110 to the first frame 127 , and the second utility is to fix the second frame 128 to the first frame 127 since the fixing lugs 129 have on some of them elastically deformable clips allowing the second frame 128 to be held on the first frame 127.

Also, as is clearly visible in FIG. 2, the second frame 128 also provides additional support for the skirt since, once installed, the second frame 128 covers, at the same time, the stop 122 located on the first frame 127 and the fixing base 112 of the skirt 110.

In order to ensure good maintenance of the filter during the assembly of the first and second frame 127, 128, a first receiving portion 123 in the first frame 127 is configured to receive the filter and to prevent the filter from discovering the enclosure of breathing 101 and does not partially cover the valve at the same time as shown in FIG. 3. For this purpose, the first frame 127 also includes a second receiving portion 123 reserved for receiving the valve 124 so that the filter and the valve 124 are very distinct and one does not interfere with the other in its function. This valve 124 is clipped into the second receiving portion 123 as the exploded view shown in Figure 4 shows. This valve 124, made of flexible materials integrated into the structure, is less restrictive because of its location, its composition and its resistance. In fact, it allows fluid communication between the breathing chamber 101 and the environment of the user, and comprises a valve seat cooperating with a valve configured to move towards the outside of the filtering respiratory protection mask 100.

In fact, the valve 124 only allows fluid communication from the breathing chamber 101 to the environment of the user so that when the user exhales in the enclosure 101 the used air does not pass through the filter but is expelled directly to the environment of the user by the evacuation created by the flexibility of the valve.

This second receiving portion is protected by a protective member 121 present on the second frame 128 in order to create a protective zone for the valve 124 in which the valve 124 is free to be able to move towards the outside of the respiratory protection mask. filtering 100.

This configuration is shown in exploded view in FIG. 3 and shows that the first frame 127 is between the skirt 110 and the filter, and the second frame 128 covers the filter, the first frame 127 and the skirt 110. Except for the fact that this arrangement keeps the filter in place, it also makes it possible to clean or change it regularly and easily.

In order to protect the filter, the first frame 127 and / or the second frame 128 comprises or comprise a set of reinforcing members 125 configured to reinforce the first frame 127 and / or the second frame 128 against torsional, tensile forces, compression and / or bending, as shown in Figures 1, 3 and 4.

The enclosure 101 and the profile of the contact portion 111 define an imprint for the nose of the user surrounded by two nasal support portions 115, a support portion for the chin 116 of the user and portions d lateral support 117 for the cheeks of the user connecting the nasal support portions 115 to the support portion for the chin 116 and the distance 151 between the imprint of the nose 114 of the user and the support portion for the user's chin 116 being between 50mm and 110mm, in particular between 60mm and 100mm preferably between 67mm and 92mm, the distance between the tops of the nasal support portions 115 being between 19mm and 32mm, in particular between 21mm and 30mm preferably between 23mm and 28mm, the nasal cavity 114 comprising two side walls extending to the nasal supports 115 and forming an angle 152 one with respect to the other the angle between 25 ° and 36 ° „in particular between 27 ° and 34 ° preferably this between 29 ° and 32 ° and in particular between 30 ° and 31 °, and the angle 153 formed by the nasal support portions 115 with respect to a horizontal plane being between 70 ° and 81 °, in particular between 72 ° and 79 ° preferably between 74 ° and 77 °. These dimensions were chosen because they also allow a morphological outline in one size materials and ensuring optimum sealing on all faces. In the case where the filtering respiratory protection mask is a quarter of the filtering respiratory protection mask, the support portion for the chin is between the chin and the lower lip.

Furthermore, the two nasal support portions 115 form two convexities whose vertices are defined by an end zone of the convexity situated opposite the maximum length of the connecting wall 113 so that the mask adapts better to all body types. These two portions of nasal supports 5 115 cover all or part of the wings of the nose and the lobule of the user so that a user can both wear the mask and a pair of glasses.

Claims (15)

CLAIMS 1. Respiratory filtering mask (100) comprising at least minus: a skirt (110); the skirt (110) being configured to be elastically deformed and comprising at least: a contact portion (111); the contact portion (111) being configured to be in contact with the face of a user of the filtering respiratory protection mask (100) and to surround the nose and mouth of the user; a fixing base (112); a connecting wall (113) being configured to connect the contact portion (111) and the fixing base (112); a frame (120) forming a breathing chamber (101) and comprising at least: a stop (122); the stopper (122) being configured to be fixed with the fixing base (112) and to surround the nose and mouth of the user; - a reception portion (123): the reception portion (123) being configured to receive a filter; and, a valve (124); the valve (124) being configured to allow fluid communication between the breathing chamber (101) and the environment of the user; the profile of the contact portion (111) defining an imprint for the user's nose surrounded by two nasal support portions (115), a support portion for the user's chin (116) and portions lateral support (117) for the cheeks of the user connecting the nasal support portions (115) to the support portion for the chin (116) and, the distance (151) between the imprint of the nose (114) of the user and the support portion for the chin (116) of the user being between 50mm and 110mm; the distance between the tops of the nasal support portions (115) being between 19mm and 32mm; the nasal impression (114) comprising two lateral walls (115) extending to the nasal supports and forming an angle (152) with respect to one another between 25 ° and 36 °; and, the angle (153) formed by the nasal support portions (115) with respect to a horizontal plane being between 70 ° and 81 °. 2. filtering respiratory protection mask (100) according to claim 1, in which the two portions of nasal supports (115) form two convexities whose apexes are defined by an end zone of the convexity situated opposite the length. maximum of the connecting wall (113). 3. Respiratory filtering mask (100) according to claim 1 or 2, wherein the two portions of nasal supports (115) are configured to cover all or part of the wings of the nose and the lobule of the user. 4. Respiratory filtering mask (100) according to any one of the preceding claims, in which the contact portion (111) forms a rim relative to the connecting wall (113), turned outwards relative to the breathing chamber (101). 5. Respiratory filtering mask (100) according to any one of the preceding claims, in which the frame (120) comprises a first frame (127) and a second frame (128) configured to cooperate with the first frame (127) so as to maintain the filter; the first frame (127) is between the skirt (110) and the filter, and the second frame (128) is configured to be attached to the first frame (128). The filtering respiratory protection mask (100) according to claim 5, wherein the first frame (127) comprises a first receiving portion (123) configured to receive the filter and a second receiving portion (123) to receive the valve. (124) facing the outside of the user. 7. filtering respiratory protection mask (100) according to claim 5 or 6, wherein the first frame (127) and / or the second frame (128) comprises or comprise a set of reinforcing members (125) configured to reinforce the first frame (127) against torsional, tensile, compression and / or bending forces. 8. filtering respiratory protection mask (100) according to claim 5 or 7, wherein the second frame (128) comprises at least one holding element (126) configured to hold the filtering respiratory protection mask (100) on the face. of the user. 9. Respiratory filtering mask (100) according to claim 8, wherein said at least one holding element (126) has a T shape configured to cooperate with a retaining device comprising at least one loop; said at least one loop is configured to be inserted into one of the ends of the T-shape of said at least one holding element (126). 10. Respiratory filtering mask (100) according to any one of the preceding claims, in which the valve (124) comprises a valve seat cooperating with a valve configured to move towards the outside of the filtering respiratory protection mask ( 100). 11. filtering respiratory protection mask (100) according to any one of the preceding claims, in which the second frame (128) comprises a protection member (121) configured to create a protection zone of the valve (124) in which the valve (124) is free to be able to move towards the outside of the filtering respiratory protection mask (100). 12. Filter respiratory protection mask (100) according to any one of the preceding claims, in which the frame (120) is made of a material harder than the skirt (110). 13. filtering respiratory protection mask (100) according to any one of claims 5 to 12, wherein the first frame (127) and / or the second frame (128) are made of harder materials than the skirt (110). 14. Filter respiratory protection mask (100) according to any one of the preceding claims, in which the skirt (110) is made of flexible material and preferably of flexible silicone. 15. Quarter of filtering respiratory protection mask (100) comprising a filtering respiratory protection mask according to any one of claims 1 to 14.