RU2039582C1 - Mask for protecting respiratory organs and facial skin from cold - Google Patents

Abstract

FIELD: medical engineering. SUBSTANCE: this mask made of textile material (babric) incorporates central protruding portion having central opening having peripheral bead to which are attached reticular perforated heat-capacity envelopes on either inner or outer side by fleecy fabric fasteners. Mask attachment members making up two strip pairs, that is, four-tailed bandage that provides fastening to head. EFFECT: design of fabric mask permits easily folding and carrying it; detachable inserts, that is, perforated envelopes allows varying degree of recuperation and thermal treatment of air. 5 cl, 6 dwg

Description

 The invention relates to personal protective equipment for respiratory organs and a person's face from cold and provides heat treatment (recovery) of inhaled air to create the most favorable conditions for human life, and can also provide air purification from large dust particles. The most appropriate use of this invention in cold weather, during snowfalls and strong winds, for example in the Far North.

The closest analogue is the well-known Finnish thermal mask "Enas", containing a body (elastic, rubber) with a nose groove and a protruding part with a central hole, at least one perforated shell (mesh) made in the form of a heat exchanger from several mesh elements, made of heat-consuming material, such as metal, as well as including mask tape elements [1]
The well-known thermal mask works and heats the inhaled air without additional energy, using (crushing) the heat exhaled by the person. This is due to the fine heat-resistant metal mesh, for example made of stainless steel, through which the inhaled and exhaled air passes. Moreover, depending on the ambient temperature and physical activity, one or two grids are used, which increases the heat capacity of the heat exchanger. The mesh used practically does not resist the passage of air during inhalation and exhalation, which does not create difficulties when breathing. The fine mesh used at the same time is also a good filter, which prevents the penetration of snow and dust particles into the mask space.

 Some drawbacks of the mask include the presence of a tightening fastener, which causes increased local pressure on the skin of the face, which, in combination with a body made of a polymer material with significant thermal conductivity, contributes to frostbite of the face at the point of contact.

 The aim of the invention is to improve the operational characteristics of thermal masks, to increase their ease of use, which is associated with the possibility of folding the mask and the use of fastening elements, eliminating excessive tightening of the skin of the face like a sling bandage, improves the thermal insulation of the head.

 The goal is achieved in that in the mask to protect the respiratory system and the face from the cold, the body is made of textile material, along the contour of the central hole of the protruding outward part of the body, a support collar is made to which a perforated shell is attached, and the mask fastening elements are made in the form of two tape pairs, connected symmetrically in pairs and in the same plane with the body on both sides with the ability to connect and disconnect the free ends of the tapes, their bend and the formation of fastening like a sling bandage. In addition, the perforated shells are bonded to each other with the possibility of separation and attachment to the supporting shoulder both from the inside and from the outside of the housing. Each perforated shell is made in the form of a mesh element made of a polymeric material, at the edges of the supporting collar and each mesh element, as well as on the free ends of the fastening tapes, interacting fleecy elements of a textile fastener of the Velero type zipper are installed.

 In FIG. 1 shows a face mask in working condition (a person’s face is conventionally shown), general view; figure 2 section aa in figure 1 (rotated); figure 3 the mask in the expanded state (appearance with somewhat curved tape pairs of attachment), General view; figure 4 section bB in figure 3 with possible options for the location of perforated shells; figure 5 shows the performance of the mask with a central round hole, front view; figure 6 section bb in figure 5 (embodiment).

 The face mask contains a soft shell of the housing 1, made of textile material (fabric), with a central hole 2, for example, rectangular or round, and with a nasal groove (in the shape of the nose), which can be formed or whose width can be changed due to the stranger 3. for example, made in the form of a plastic plate of aluminum or other plastic material and, for example, sewn into the shell of the housing 1. In the mask along the contour of the central hole there is a protruding part 4 of the housing 1 with an end supporting shoulder 5, to which fastens one or more parallel, superimposed perforated or mesh shells 6 (inserts to the mask) made of a sufficiently heat-resistant material, for example metal, polyester or other polymeric material, with the formation of a heat-exchange surface. The height of the protruding part 4 of the housing 1 should be sufficient to form a cavity for accommodating the perforated shells 6 and the formation of a mask space. For attaching the perforated shells 6 to each other and to the shoulder 5, pile elements 7 of textile fasteners of the “Velero” type of zipper can be used, which are respectively mounted on the edges of the shoulder and perforated shells (inserts) 6. The shape of the central hole is usually similar to the shape of the perforated shells 6 or differs slightly, which contributes to their fastening to the supporting shoulder 5 from the inside of the mask. The mask includes fasteners, which are made in the form of two tape pairs 8 and 9, connected to the shell of the housing 1 symmetrically in pairs and in the same plane with the possibility of separation of the free ends of the tapes, their bend and the formation of fasteners as a sling bandage (see figure 1 and 3). To perform fastening at the ends of each of the four tapes 8 and 9 of the pair, interacting pile or other elements of textile fasteners 10 and 11 must be installed, for example, according to the type of zipper. Moreover, for the possibility of their contacting these fasteners (elements) 10 and 11 are located on the right and left pairs 8 and 9 from different sides.

 As one of the preferred options for the implementation of the implementation of the tape pairs 8 and 9 in one piece with the shell 1 of the housing, for example, by appropriate cutting and stitching when applying one, two or more layers of fabric on top of each other. The execution of the shell of the housing 1 multilayer allows you to increase its heat-shielding properties, improve the appearance, increase the stiffness of the protruding part 4 and the support shoulder 5, forming a kind of frame in which are fixed perforated shell 6 (inserts included in the mask). Moreover, the shape of the perforated shells 6 can be either flat or curved (Fig. 4,6).

 The mask is used as follows.

 Before use, the mask is usually in a folded (folded) state. When used, it is deployed (Fig. 3), the presence and fastening of the perforated or mesh shells 6 included in the mask set is checked to the support shoulder 5 and to each other, if several shells 6 are required. The latter allows increasing heat transfer and can be recommended with strong frost and wind. Then put on the mask, getting on the nose with a strangulator 3, tightly cover the head with the upper ribbons of the tape pairs 8 and 9 with the fastening of the textile fastener 10 by squeezing its interacting elements. Then, bending the lower tapes of the fastening elements 9 (Fig. 1), they wrap around the upper part of the head and fix the textile fastener 11 and 10. The nose groove is adjusted by compressing the strangulator 3 in the shape of the nose. After performing these operations, the mask is ready for use.

 The action of the mask is based on the recovery of air heat during breathing and does not require any special skills from the user. The air temperature in the under-mask space rises due to the intrinsic heat of the exhaled air and the heating of the incoming cold air when passing through the perforated surface of the shell 6, previously heated during the exhalation cycle. The proposed mask is convenient in work, helps to improve working conditions.

Claims (5)

 1. MASK FOR PROTECTION OF RESPIRATORY BODIES AND FACES FROM THE COLD, containing a body with a nose groove and a protruding outward part with a central hole, at least one perforated shell made in the form of a heat exchanger made of several mesh elements made of heat-resistant material, and tape elements for attaching the mask , characterized in that the housing is made of textile material, a support shoulder is made along the contour of the central hole, and the mask fastening elements are made in the form of two tape pairs connected symmetrically in pairs and in the same plane with the body on both sides with the possibility of connecting and disconnecting the free ends of the tapes, their bending and the formation of fastenings like a sling bandage.  2. The mask according to claim 1, characterized in that the perforated shells are bonded to each other with the possibility of separation and attachment to the supporting shoulder both on the inner and outer sides of the housing.  3. The mask according to claim 1, characterized in that the perforated shell is made in the form of a mesh element of a polymeric material.  4. The mask according to paragraphs. 1 and 2, characterized in that at the edges of the supporting collar and each mesh element are installed interacting fleecy elements of textile fasteners such as "Velero" zippers.  5. The mask according to claim 1, characterized in that at the free ends of the fastening tapes are installed interacting fleecy elements of textile fasteners.

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