JPS62502308A - Improvements in breathing equipment - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention relates to a breathing apparatus and a breathing bag suitable for use with the same. and in particular with respect to “self-rescue” breathing devices (and functional components for such devices). It is something that That is, the present invention can be used, for example, by coal miners as part of their normally used equipment. However, if the wearer escapes from the water area or the area is filled with toxic or asphyxiating gas, breathing equipment worn only in emergencies to allow escape from a protected area; It's about location.

Such breathing apparatus need not have an extremely long operating period, but must be sufficiently light. In its normal state of non-use, it does not interfere with the wearer's work. It must be compact so as not to interfere (1° Breathing devices for closed-circuit breathing devices are airtight, strong, and unbalanced. Large internal volume over a small internal pressure range without using very large actual dimensions We have to make a change. In the past, such breathing bags were heavy and sturdy. made from several chunks of rubber or plastic material sewn together into a complex shape there was.

The breathing bag for a closed circuit breathing apparatus provided by the present invention is made of two pieces made of airtight material. The sheet has a sheet of connected to each other around the circumference, being deployable and extending substantially in the same plane. Ru.

Surprisingly, such breathing bags can be used for a given clothing area and under normal pressure. It is possible to obtain extremely large volume changes over a force range, and also to achieve satisfactory results. It has been found that the structure can be constructed to have the desired mechanical strength.

The two sheets cover the entire circumference of the sheet except for a single portion that forms the opening for the bag. Preferably it is joined around the edges. thus forming a separate mouth There is no need to remove the edges around the mouth of the bag (as discussed below). If the part is clamped into the breathing apparatus, insert half of the connector into the material of the breathing bag. The conventional manufacturing step of joining can be omitted.

Preferably, the sheet has four side parts of a virtual rectangle in a stress-free state. It can be expanded into a shape defined by diagonal lines that cross the corners of the isogon. Ru. This way, even when the breathing bag is inflated, the center part of the bag will not be The edges remain flat, while the edges are wrinkled. Effective octagonal shape By forming it by selecting a suitable angle, the sheet area can be extremely high. Most of the wrinkles, which are a significant factor in providing expanded volume, can be absorbed.

The lengths of the sides of the virtual rectangle are preferably in a ratio of 1:1.1 to 1:1.5. , preferably in a ratio of 7:8. By selecting a non-square shape, the The bag is a more efficient and compact self-rescue device (as explained below). It is possible to pack it. Note that self-rescue devices use asymmetrical bags. By wearing the bags at different positions, you can improve the appearance of the bag and at the same time improve the appearance of the bag. The tendency of the tags to become entangled with other parts of the breathing apparatus can be reduced.

The mouth of the bag is preferably located at or near a corner of the imaginary square. , and the bag is thus in normal use with the opening suspended from the top, creating a virtual Preferably, the rectangle is arranged with one diagonal pointing substantially vertically.

The two edges defined by the diagonal line are substantially parallel to the one diagonal line. , and the vertical distance between these edges is in this case parallel to the diagonal. And the vertical distance between the virtual lines passing through the corners of the virtual rectangle is preferably 60 inches to It lies in the range of 90%, preferably at a value of about 78%.

The diagonal line at the corner opposite the mouth may be perpendicular to the diagonal line. Ru.

The present invention also provides a closed circuit breathing apparatus comprising a breathing bag according to the invention. .

The edges around the mouth of the breathing bag attach to the lip that is clamped to the breathing apparatus connector. It is possible to fold back on the ring.

The bag is folded into a strip with the opening at one end. The strip can then be folded and opened by removing the closure member. It can be housed within a component of an inhalable breathing apparatus.

The breathing bag is configured such that when the breathing apparatus is activated in the normal position of the breathing apparatus, Enclosed within the lower end portion of a component of the device by the bottom cover member being removed. Preferably, the bottom cover member is removed from the breathing apparatus by its own weight when the bottom cover member is removed. Preferably, it is configured to drop suspended and open. Related to the present invention According to the folded breathing bag, as long as it can fall freely, the above-mentioned The configuration is easily achievable and the opening of the bag is first It is completed when you exhale inside the room.

The present invention also extends to occupy a space outside the location of the cover member when the breathing apparatus is activated. Top and bottom cover parts that cover the parts of the breathing apparatus and one cover part. and a member in tension extending to the other cover member. We provide breathing equipment. Here, the cover member is attached to the member in tension. Therefore, by being fixed to each other, they are fixed to the breathing apparatus, At least one of said members in tension may be broken or destroyed by the wearer of the breathing apparatus. In other ways, the cover material can be easily removed and quickly removed. Rukoto can.

The at least one member in tension may be a wire, and the at least one member in tension may be a wire; Said at least one other member in is preferably a monofilament fibre. The above The arrangement of the bar members thus ensures that the tension within the filament when the wire is broken is This is done in such a way that the release energy of the cover member is accelerated from the breathing apparatus. is preferred. The top cover member may be used as a face mask, mouthpiece or the like. The bottom cover part covers the flexible hose that connects this to other parts of the breathing apparatus. The material can cover the breathing bag.

The invention further includes an inner layer of non-permeable material and an outer layer of liquid absorbent material. Provided is a breathing bag for a closed-circuit breathing device, comprising:

The outer layer may be a fibrous material, preferably cotton and polyester fibers. It is a mixture of Such a fibrous outer layer prevents the breathing bag from coming into contact with external objects. The non-porous nature provides resistance to drag and abrasion induced by Reduces the risk that the layer will break during use.

The invention also provides a respiratory apparatus including such a bag.

Preferably, the breathing apparatus is for emergency use and the outer layer of the breathing bag is immersed in liquid. immersed, the breathing bag is stored in the sealed compartment of the breathing apparatus, and the breathing apparatus is It is exposed to the outside air when activated.

Upon activation, the liquid evaporates and cools the breathing bag, thus causing the inside of the breathing circuit within the bag to evaporate and cool the breathing bag. This will cool the gas. This evaporative cooling effect only lasts for a short period of time. The process ends when the liquid completely evaporates unless the cooling liquid is replenished.

However, this cooling pattern does not correspond to the typical operating cycle of a self-rescue device. It is possible to The liquid is preferably aqueous. Because the air of water Since the latent heat of oxidation is high, it is necessary to obtain a large amount of total cooling with a limited liquid volume. This is because it becomes possible. The liquid may contain one additive or a combination of additives. These additives include bacteriostatic agents, humectants, and liquid freezing agents. Examples include additives that lower the boiling point of the liquid, and additives that lower the boiling point of the liquid. These 4 It turns out that it is possible to produce all of these effects by machining a single piece. ing. However, it is inevitable that the latent heat capacity will decrease somewhat.

One form of a breathing bag constructed according to the present invention and one breathing bag including the same bag The apparatus will now be described by way of example only with reference to the accompanying figures.

FIG. 1 is an elevational view of the breathing bag.

Figure 2 is a fragmentary cross-sectional view of the connection between the breathing bag and other parts of the breathing apparatus. be.

FIG. 6 is a schematic elevational view of the breathing apparatus.

Referring to the accompanying figures, there are two forms of breathing bag, generally designated by the reference numeral 1. expandable sheet material (i.e., unstressed) It has a sheet material that can be used for various purposes.

Each sheet is made of laminate material with an inner nylon or polyethylene sheet. The material is made of one or more layers, providing a substantially airtight material. The outside is It is made of polycotton, a mixture of polyester and cotton fibers. Said plastic The stick layer is bonded around the edges of the sheet for the bag. Inlet and outlet 2'! il-continuous except for a single gap forming (as shown) formed into strips. The polycotton is attached to other parts of the bag. It can be joined or glued. If an adhesive is used, the adhesive The adhesive is applied onto a release paper or similar carrier, and the adhesive on the same carrier is applied to the plastic. Apply the adhesive to the outer surface of the plastic material and peel off the carrier, leaving the adhesive on the plastic material. However, polycotton material can be added to the adhesive. The resulting laminate material is The plastic material, which must maintain airtightness, is covered with fibrous polyester on the outside. Protected by tonne material, it has durability against tearing and abrasion during use. ing.

As you can see from Figure 1, the bag has an octagonal shape, that is, the four corners have been cut off. It has a rectangular shape. If you put a bag on the corner where intake port 2 is cut out, If it is considered as a rectangle that occupies one area, the size of the breathing bag 1 that crosses the entrance of the house The diagonal line is almost perpendicular to the diagonal line of the rectangle that runs toward the entrance to the four-way entrance. while using it In the breathing bag 1, the intake port is usually located at the top, and the diagonal line runs approximately vertically. Turn. The following description of this breathing bag will be based on this vertical direction. the other three cuts The edges 3 to 5 defining the cut corners are all substantially parallel to or parallel to said diagonal. It is vertical. The two vertical cut edges 3 and 4 on both sides are temporary Approximately 2% less than the width of the virtual rectangle, which is the width between the vertical lines passing through the corners of the virtual rectangle. flattened by vertical distance. Inlet 2 and bottom cut edge 5 are on the side. A triangle of similar dimensions to the cut edge in is cut out. the virtual rectangle The lengths of the sides of the shape are in the ratio of approximately 7=8.

Referring now to FIG. 2, the breathing bag 1 has an edge portion 6 at the intake port 2 that By folding it back onto the ring 7, it can be connected to a breathing apparatus. then the ring 7 is seated on the shoulder of the connector portion 8 of the breathing apparatus and is defined by an elastic O-ring 9. be placed in position. Ring 1 shall be seated on the male or female surface of connector 8 I can do it. There is no need to provide connector parts to join the breathing bag; The manufacture of the tag is greatly simplified.

The breathing bag packs compactly when the breathing apparatus is not in use. The bag 1 can be folded back along a line parallel to the vertical diagonal, and the bag 1 can be folded back along a line parallel to the vertical diagonal. For example, as shown in FIG. A strip approximately 14 times the width of the tag can be formed. Preferably,( The right bag side (as viewed in FIG. 1) is folded forward at line 12. next The left hand side is folded forward at line 13 and then at line 11 which coincides with line 13. It can be folded and bent. Fold the right-hand side forward at the next matching line 1° and 14. The left hand side is finally folded forward at line 15. Thus bag 1 is Grooves are formed along lines 10, 12, 13 and 15 (as seen in Figure 1), and grooves are formed along lines 11 and 15. A crease is formed along line 14 to form a lip. Lines 10-15 are for the bag. Simply print on the polycotton layer on one side or fold the bag. You can also leave it as an imaginary line. The above folding order instead of the above folding order. S) The IJ tabs should be folded in a different order and/or to different sides. It is also possible to provide a number of stationery strips.

The folded strip has a thickness that increases towards the center of the strip. Also, by cutting the side corners at edges 3 and 4, the It can be seen that the thickness of the thickest interior of the lip is further reduced. The imaginary square is a square Since the IJ knobs outside lines 10 and 15 have no shape, the IJ knobs are less than half their length. Only the bottom overlaps, and the thickness of the folded strips makes it easy to fold a square bag. distributed more evenly over its length than if it were extended.

The folded IJ tube is then folded along a line perpendicular to lines 10 to 15. It can be bent to form a cube-shaped filling. Fold back about 5 times and zigza around the pomelo. The last two folds at the bottom edge are preferably The bottom edge of the bag should be on the same side of the next two strips. It is best to wrap it between the bags.

When folding the breathing bag 1 while it is attached to the breathing apparatus, Of course, the top part of the bag does not fold neatly, but the rest of the bag is It can be bent as described above and placed near or even inside the connector 8. I can do it.

Referring now to FIG. 3, one form of breathing apparatus for emergency use is illustrated. , the breathing apparatus consists of two cylindrical units of substantially the same length side by side in the stored state. It consists of ports 16 and 17. One unit 16 houses an oxygen cylinder, The other unit 17 can house a carbon dioxide absorption purifier. this device is placed on the corner arm so that the cylindrical unit is in a vertical position when in use. It is designed to be used. The second unit 17 includes a top cap 18. A mouth guard and its connecting hose (not shown) are stored inside this cap. ing. The unit 17 further includes a lower end cap 19 (shown in phantom). The cap covers the connector 8, and the breathing bag 1 is inside the cap. It will be stored. The top and bottom end caps are held together by two fastening members. one of the members is elastic (e.g., a nylon monofilament strand); (formed by) is under tension and the other is broken off from one end cap or It can be removed fairly easily by other methods. the end cap 18 and 19 and the arrangement of the fastening members is such that the other fastening member is The end cap is adapted to separate the fasteners, so that the end caps resist the tension of the resilient fasteners. It is possible to remove it with more help. When the bottom end cap 19 is removed , the breathing bag 1 falls and opens at least partially under its own weight, causing the breathing bag to When the breath is first expelled, the needs of the inhalation device expand to the stent, as shown in Figure 6.

Preferably, the attachment of the breathing bag to the connector 8 is performed using a virtual length, as shown in FIG. The long side of the rectangle faces the first cylindrical unit 16, and the bag is It is made to lie flat against the body of the layer user when it is wetted. Thus, the above In the first cylindrical unit 16, the long side of the virtual rectangle is closer to the vertical direction than the short side. This reduces the risk of it getting tangled with bag 1.

However, the result may also be more aesthetically pleasing. in this case, The cutout on the side remote from the first unit 16 is In order to distribute the width of the bag more evenly, a cut on the side facing the first unit 16 The protruding corners are made larger than the handle to reduce the risk of getting caught on obstacles. It is possible to

The polycotton material placed on the outside of the breathing bag 1 connects the breathing bag to the bottom end cap 1. 9 before being immersed in an aqueous liquid. This cap 19H second circle A liquid that immerses at least the polyester along with the bottom end portion of the cylindrical unit 17. forming a substantially watertight and vaportight seal with respect to the body and the vapor of the liquid. Ru. The liquid has a predetermined volume and the end cap seals to the clarifier housing. can be introduced by injection into the bottom end cap 19 just before It is. In this way, the polycotton material will distribute all the liquid onto the breathing bag. It will act as a core. The liquid will then pass through the end cap 19 and the breathing bag. and the impermeable inner layer of G1.

The purpose of said liquid is to contain the breathing gas inside the breathing bag 1, and thus the breathing apparatus. Cooling is achieved by vaporization during use. For this purpose, relatively high Water with a latent heat of oxidation is suitable and, if desired, additives and additives to lower the freezing point of the liquid are suitable. Including additives such as additives that raise or lower the boiling point, humectants or bacteriostatic agents I can do it. Although latent heat decreases somewhat as a side effect, all four of these effects are It is also possible to achieve this using one additive.

If the polycotton material is immersed in a liquid, the polycotton material should be soaked in plastic. The adhesive layer that connects the ventilator to the ventilator ensures that the breathing apparatus is in its normal "ready-to-use" state. Must be effective even when permanently exposed to liquids while in

Corner first inhales with this device and when the breathing bag is inflated, The material bends to accommodate this. Generally speaking, the two components that make up the bag The central part of the two sheets remains fairly smooth, but the more peripheral parts It's getting more and more wrinkled. According to the octagonal shape shown in Figure 1, the wrinkles are octagonal. Effectively concentrates on the corners of the shape and extremely high expansion volume ratio to surface area. It turns out that it is possible to do so.

international search report ANNEX To TFE INTERNATIONAL 5EARCHREP OR Ding 0NFor more details about this ar ,nex +m@@0ffieiJLl journaL of tha E european patent office! , No. 12782

Claims (10)

[Claims] 1. A breathing bag for closed-circuit breathing apparatus, consisting of two sheets of airtight material. The sheet has a ridge around its edge in a stress-free state breaths joined to each other in such a way that they are deployable and extend substantially in the same plane. Buzz. 2. The breathing bag according to claim 1, wherein the two sheets are attached to the bag. joined together around the entire periphery except for a single part that forms the mouth for Breathing problems characterized by. 3. In the breathing bag according to claim 1 or 2, the sheet comprises: In the non-stress state, cross the four side parts of the virtual rectangle and the corners of the isogon. A call characterized in that it is capable of expanding into a shape defined by diagonal lines. Sucking. 4. In the breathing bag according to claim 3, the length of the side of the virtual rectangle should be in the ratio range of 1:1.1 to 1:1.5, preferably about 7:8. Breathing back characterized by. 5. In the breathing bag according to claim 3 or 4, the virtual rectangle characterized in that one mouth is provided at or near one of the corners; Symptom: Difficulty breathing. 6. In the breathing bag according to claim 5, the two diagonal lines are virtual squares. respiration, characterized in that the respiration is approximately parallel to a diagonal line running toward the mouth of the mouth; Buzz. 7. In the breathing bag according to claim 6, the vertical distance between the two diagonal lines is The distance is the vertical distance between imaginary lines that are parallel to the diagonal and pass through the corners of the imaginary rectangle. A breathing bag characterized in that the distance is between 60% and 90%, preferably about 78%. 8. A breathing bag according to any one of claims 1 to 7. closed circuit breathing apparatus. 9. The breathing apparatus according to claim 8, wherein the breathing bag is It is described in item 2, and the edge part around the mouth of the breathing bag is similar to that of the breathing bag. It is characterized by being bent over the ring that is clamped to the connector in place. breathing apparatus. 10. The breathing apparatus according to claim 8 or 9, wherein the breathing bag is described in any one of claims 5 to 7, and When the device is ready for use, the breathing bag is located at one end. It is folded into one strip along with the markings, which is then folded. CLAIMS 1. A respirator, characterized in that it is housed within a removable cap of the respirator.