RU115055U1 - BAG - Google Patents

Abstract

A thermal bag, including a bottom, side walls and a lid, made of sectional material, insulation and a rigid insert to provide thermal insulation, and equipped with at least one body that accumulates cold, fixed from the inside, characterized in that the joining of the walls between themselves and the bottom on all sides of the body is carried out by connecting the extreme part of the inner side plane of one wall with the end plane of the other wall or bottom, it is made with a thread seam that holds the outer material of both walls and located in the inner volume of one of the walls.

Description

The utility model relates to manual means of transportation and is intended for use as a container bag when transporting cold and hot food products in packaged form: frozen or chilled products (salads, sandwiches, drinks, vegetables, fruits), as well as hot products (pizza, grill, soups, etc.).

A thermal bag is used to briefly keep foods hot, chilled, or frozen. It is used on the road, when camping and traveling. When delivered from a store to a home, a thermal bag helps maintain the temperature of the frozen product, and prevents it from rising to a critical value. To increase the time to maintain the quality of products in thermobags, cold accumulators are used. For the manufacture of a thermal bag, fabrics, plastics, polyvinyl chloride film, foamed polyethylene, cardboard and other materials and accessories are used.

Known cooler bag according to the certificate for utility model RU No. 5849, which is a box of heat-insulating material, covered with a polymer film, containing cold storage material in the form of bags, placed in the refrigerator before use, in addition, a sealed bag made of polymer material for food is placed inside the box or medical preparations, on the inner opposite sides of which there is a sealed bag with cold storage material on one side and perforated a porous bag on the other hand. The disadvantage of this cooler bag is that the porous material placed in the bag does not drain the condensed water during food storage and does not provide thermal stabilization inside the cooler bag. In addition, it has a large mass and is inconvenient in operation.

Known cooler bag according to the certificate for utility model PM RU No. 39682, which is a case made of insulating material placed in a polymer film, a sealed bag made of polymer material for food or medicine located inside the bag and a cooling element, characterized in that the case is made of polymer material with open porosity, and forms a closed volume.

The disadvantage of this bag is the incomplete removal of condensing water by a polymer material with open porosity during storage of products, a large mass and low thermal stability.

Known container for biological objects according to the patent for utility model RU No. 42634, containing a thermally insulated body with a lid and an inner chamber. At the same time, a pencil case is located in the lower part of the inner chamber of the casing, designed to accommodate a cooler made in the form of a sealed container made of hardened rubber and filled with a cooling agent. A tripod with holes for various sizes of bins is placed above the pencil case, and on the inner surface of the lid there is a heat-insulating material with a thickness equal to the height of the free space above the tripod.

A disadvantage of the known container is the irrational use of the volume of the working chamber, as well as the short service life during which the container can meet the sanitary and hygienic requirements for these devices.

Known bag for storing products according to the patent for utility model RU No. 68663, including a bottom, side wall and cover, designed to provide thermal insulation, and is equipped with at least one body that accumulates cold, mounted inside on the side wall. To ensure thermal insulation, the side wall of the bag is formed of interconnected sections. Moreover, each section of the side wall, as well as the lid and bottom, are a flat-shaped bag of a pair of outer layers of fabric connected around the perimeter. At least one heat-insulating plate is placed inside the bag, and the lid is connected directly to the edge of one section, and with the rest by means of a zipper. In this case, polyester is used as the material of the outer layers of the bag of a flat shape, and each heat-insulating plate is a heater, for example, foamed, to which foil is glued on one side. To increase the thermal insulation, as well as the structural rigidity of the bag, an additional plate of porilex with increased rigidity, which has heat-insulating properties, is placed inside the bag of a flat shape. The bag has a cube shape with rounded edges. The side wall, the lid and the bottom are made of flexible materials, and their connections allow their rotation relative to the joints between them, thus making it possible to fold an empty bag.

However, the well-known bag is not reliable enough and is not durable. The joints of the side walls, lids and bottoms wear out quickly and the product loses its thermal stability.

Known cooler bag according to the patent for utility model RU No. 83125, which is a box of polymer material, inside of which is placed a sealed bag of polymer material, a cooling element and a porous material, characterized in that the sealed bag is made of an air-bubble film of food-grade polyethylene, and the porous material is made of a moisture-absorbing fabric with a capillary structure, the ends of which are removed from the sealed bag. However, the known cooler bag is not thermally stable enough; the walls of the housing are joined by connecting the external material only on the faces of the end plane of the walls. Therefore, along the joints on the body, thermal insulation is significantly reduced. The bag has a large mass and moisture condensation occurs in it.

The closest technical solution is the decision of the thermal container bag according to the patent for invention RU No. 2330220. The thermal container bag is made in the form of a chest, it contains the outer and inner shells, which are made of textile material, between which there is a heat insulating fence with an internal cavity, a working chamber, a lid installed above the cavity of the working chamber, the latter is made in the form of a hollow rectangular parallelepiped open from above, moreover, the thermal container bag also contains a removable container made of hard material that is open on top and is installed in the inner cavity of the insulating fence.

However, in the known thermal container bag, the docking of the walls of the housing is carried out by connecting the outer material only on the faces of the end plane of the walls. Therefore, along the joints on the body, thermal insulation is significantly reduced. This design does not provide sufficient thermal stability over a long service life.

The task to which the present utility model is aimed is to increase the period of maintaining a low temperature inside the bag, acceptable for storing the product located in it, increase reliability and expand the assortment of thermo bags that are convenient to use.

The technical result is to increase the tightness of the joints, which increases thermal insulation and thermal stability over a long period of operation.

This result is achieved in that the thermal bag, including the bottom, side wall and cover, is designed to provide thermal insulation, and is equipped with at least one body that accumulates cold, fixed from the inside. Thermal insulation is provided by the sectional structure of the walls of the external material such as a PVC film or woven material with impregnation, insulation - foamed polyethylene and cardboard or plastic inserts for stiffness. To increase thermal insulation and wear resistance, the walls are joined to each other and to the bottom along all faces of the body by connecting the extreme part of the inner side plane of one wall with the end plane of another wall or bottom. The walls are joined by a thread seam fastening the outer material of both walls or the wall and the bottom, and located in the internal volume of one of the walls.

The essence of the claimed utility model is illustrated in the drawing,

where figure 1 is a General view;

figure 2 - diagram of the docking of the walls.

The thermal bag (see Fig. 1) contains a cover 1 mounted on the walls 2, resting on the bottom 3 with a reinforcing insert 4. On the outer surface of the case there are pockets 5 with valves 6, a handle 7 with straps 8 for carrying, legs 9 as a support corps. Fixing the cover 1 on the housing is carried out using the lock 10 in the form of "lightning".

The joining of the walls (see figure 2) having a sectional structure of the outer material 1, insulation 2 and the rigid insert 3 is carried out by connecting the extreme part of the inner side plane of one wall with the end plane of the other wall and the bottom along all faces of the body. The walls are joined by a fillet seam 4, fastening the outer material of both walls and walls and the bottom, and located in the internal volume of one of the walls.

The thermobag is made with various standard sizes, depending on useful volume. Overall dimensions and wall thickness (see figure 1) are indicated in the table:

Bag designation (liters) Outer dimensions in cm Wall thickness in cm BUT AT FROM H (not less) T 3 26.5 8.5 22 1,1 T 6 24.5 29th 17 1,6 T 12 25 29th 29th 1,6 T 24 33 39 thirty 1,6 T 36 35 47 32 1,6 T 48 38 53 33 1,6

The use of thermal bags is as follows. Pre-chilled products or medicines in the refrigerator compartment are placed inside the case and laid at the bottom. On top of this is a cooling element, previously cooled in the freezer. Then the thermobag are hermetically closed and food products are stored or transported in it. The bag uses rechargeable gel or salt rechargeable batteries with certificates of conformity.

Claims (1)

A thermal bag, including a bottom, side walls and a cover made sectional of external material, insulation and a rigid insert to provide thermal insulation, and equipped with at least one body that accumulates cold, fixed from the inside, characterized in that the walls are joined together with the bottom along all faces of the body is carried out by connecting the extreme part of the inner side plane of one wall with the end plane of the other wall or bottom, performed by a filament seam, fastening the outer material of both walls and located nym the internal volume of one of the walls.