RU202835U1 - FOOD TRAY - Google Patents

Abstract

The utility model refers to containers intended for sealed packaging, storage and transportation of liquid, pasty and bulk food and non-food products and materials with tamper evident, and is made of polymeric material. The task of creating a utility model: reducing the material consumption of the tray. The achieved technical result: reducing material consumption The solution to this problem is achieved in a food tray containing a base with a flange and a lid connected to each other, the lid is made in the form of a sealing film, which is hermetically soldered to the flange of the base with the possibility of opening and closing or completely removing it, thus, that the thickness of the sealing film is made from the condition: δ1 = (0.2-0.5) δ2, where δ1 is the thickness of the sealing film; δ2 is the thickness of the base walls. The sealing film can be made with the possibility of dead welding of the LOK type. The sealing film can be made with the possibility of a clear opening of the PELL type. The base and the cover can be are filled with transparent material. 3 points. f-ly, 9 ill.

Description

The utility model refers to a disposable container and is designed for sealed packaging, storage and transportation of liquid, pasty and bulk food and non-food products and materials with opening control and is made of polymer material.

Known polymer packages can be used for transportation and storage of various materials, however, during transportation on poor roads, the lid and body experience large dynamic loads arising from the movement of liquid, pasty or bulk materials inside the package. The movement of materials can cause a violation of the geometry of the package, opening the lid, as well as the formation of cracks, spalling, destruction of the bottom, which leads to a violation of the tightness of the package and the leakage of a liquid or pasty product into the gap between the lid and the body and the penetration of air into the package, which in turn causes deterioration in product quality.

Known polymer packaging (RU, utility model patent No. 41705, class B65D 1/00, publ. 10.11.2004.

This package consists of a truncated-cone body with a bent outer lip and a slip-on lid with a flange and base flange. An annular groove is formed between the flange and the flange, which ensures that the cover engages with the edge of the body. The outer annular protrusion of the body edge has a rounded or trapezoidal shape. A rounded annular protrusion is made along the inner perimeter of the lid flange, and a continuous rounded annular protrusion is also made along the inner perimeter of the curved profiled section of the lid flange, located higher than the protrusion on the lid flange. Both protrusions are directed towards the inside of the annular groove but do not overlap.

The disadvantages of the known polymer packaging is the insufficient efficiency of its use, due to the possibility of opening the lid, or flowing the product into the gap between the package body and the lid during transportation on bad roads, or when it becomes necessary to shake the product, or when the bottom of the package bends. In addition, due to the fact that the horizontal platform of the bulkhead significantly exceeds the overall thickness of the upper edge of the body during stacking, the bodies will be displaced along the horizontal axis and in the stack relative to each other within the bulkhead length, which leads to instability of the stack and its tendency to collapse.

Known polymer packaging (RU, utility model patent No. 70226 class B65D 1/00, from 08.08.2007, publ. 20.01.2008.

This polymer package contains a body made in the form of a truncated cone with a bent outer annular protrusion located along the perimeter of the upper edge of the body. On the outer side of the body there is a stepped flange directed downward, forming a skirt and connected to the body by jumpers that extend beyond the lower edge of the flange to facilitate stacking of the polymer packaging. The locking vertical welt is located on the upper surface of the flange and together with the lock joint serves to protect the polymer packaging from accidental or unauthorized opening. The bottom of the hull has at least two step transitions, the center of the bottom is located above the lower edge of the hull. The inner surface of the bottom is made with rounds at the place where the bottom and the wall of the body match, all bottom transitions are also made with rounds. The polymer package is provided with a lid with a flange and a flange extending from it, having a curved section directed downwardly, profiled so that an arc groove is formed between the flange and the flange inside, ensuring that the lid engages with the outer annular protrusion of the body. An annular locking welt is placed in the lower part of the lid, which forms an obtuse angle (a) with the inner surface of the lid.

In this case, the lower part of the locking welt fits snugly against the inner wall of the body, and the apex of the angle (b) formed by the cover and the locking welt is opposite the angle (c) formed by the wall and the bevel.

Due to such a structural design of the body of the analogue, they cannot be used on high-speed filling lines with automatic and semi-automatic feeding.

The efficiency of using the container is especially important when using the product in consumer enterprises.

Such bodies (by analogy) can be used on low-speed filling lines with manual feed.

The disadvantages of the known polymer packaging - utility model No. 70226) is the lack of operational reliability and efficiency of its use.

One of the main disadvantages is the impossibility of achieving the efficiency of using the container on high-speed automatic filling lines.

Known polymer container for the RF patent for useful model No. 142400, IPC B65D 1/00, publ. 06/27/2014.

The task of this utility model is to ensure tightness when closing the container and more reliable control of its opening.

This polymer container contains a body in the form of a truncated cone with a bent outer annular protrusion located along the perimeter of the upper edge of the body, and a snap-on lid with a rim and a flange extending from it, having a downward curved section profiled so that between the flange and an arc groove is formed inside the flange, which ensures the engagement of the cover with the edge of the body; on the outer side of the body, a stepped flange directed downward is made, forming a skirt and connected to the body by jumpers.

Disadvantage: the element providing tamper evident control does not provide sufficient effective control.

Known polymer container for food products according to the RF patent for useful model No. 192251, IPC B65D 51/22, publ. 09/11/2019

This polymer container contains a base in the form of a truncated hollow tetrahedral pyramid with a flange of the base, and a lid, connected to each other with the possibility of opening and closing.

Disadvantages: high material consumption of the tray, the complexity of its design.

Known container for patent WO 00/37335 A1, publ. 06/29/2000 prototype.

This container contains a tray for food products containing a base with a flange and a lid, connected to each other with the possibility of opening and closing, while the lid is made in the form of a sealing film, which is hermetically soldered to the flange of the base with the possibility of opening and closing or completely removing it.

Disadvantage of the container: high material consumption of the tray.

The task of creating a utility model: reducing the material consumption of the tray.

The achieved technical result: reducing the material consumption of the tray. The solution to this problem is achieved in a food tray containing a base with a flange and a lid connected to each other, while the lid is made in the form of a sealing film, which is hermetically soldered to the flange of the base with the possibility of opening and closing or its complete removal, so that the thickness the sealing film is made according to the condition:

δ ₁ = (0.2 ÷ 0.5) δ ₂ , where:

δ ₁ - the thickness of the sealing film.

δ ₂ - wall thickness of the base.

The sealing foil can be made with a LOK type dead weld.

The sealing foil can be made with a clear opening of the PELL type.

The base and cover can be made of transparent material. The essential features of claim 1 of the utility model formula are necessary and sufficient to achieve the claimed technical result.

The essence of the utility model is illustrated by drawings and a photo in FIG. 1-9, where:

- in Fig. 1 - General view of a tray with a lid,

- in Fig. 2- view A,

- in Fig. 3 - view B,

- in Fig. 4 is a side view of a closed tray,

- in Fig. 5 shows a side view during the opening process,

- in Fig. 6 side view of a fully open tray,

- in Fig. 7 photos of a closed tray,

- in Fig. 8 photos of the tray at the beginning of its opening,

- in Fig. 9 shows a photo of an open tray without a cover.

List of reference designations of positions:

base 1,

cover 2,

base flange 3,

cover flange 4,

connector plane 5,

the first side edge 6,

second side edge 7,

third side edge 8,

fourth side edge 9,

bottom 10,

bottom notch 11,

trapezoidal flat bevel 12,

volumetric rounding 13,

recess 14,

rounding 15,

rectangular recess 16,

incision 17,

kink-hinge 18,

tear-off piece of bead 19.

DESCRIPTION OF THE TRAY IN STATIC

Tray for food products (Fig. 1-9) structurally consists of a base 1, which is a truncated cone expanding upward, made of polymeric material, a cover 2 made in the form of a sealing film, a flange of the base 3 made along the entire outer upper side of the base 1. The cover 2, made of a sealing film, has a flange of the cover 4, forming in contact with the flange of the base 3, the plane of the connector 5.

The base 1 is made in the form of a hollow truncated tetrahedral pyramid.

Base 1 (Figs. 1 and 2) contains four lateral faces: 6-9, of which 6 and 7 are short, and 8 and 9 are long. At the bottom, the base 1 has a bottom 10. In the bottom 10, a bottom recess 11 can be made.

The side faces 6 ... 9 are interconnected by trapezoidal flat bevels 12 in the upper part and volumetric roundings 13 in the lower part. This will provide a significant increase in the rigidity of the container without the use of ribs.

To ensure temporary opening of the container, a U-shaped recess 14 is made on the flange of the base 3, and on the roundings 15 of one of the long side faces 8 or 9 (for example, Fig. 3), two rectangular recesses 16 are made at the third side face 8 16. Along the U-shaped cuts 17 are made in one of the side faces, for example the fourth 9, a bend-hinge is made 18. When the cover is opened in the form of a sealed film, a tear-off piece of bead 19 comes off from the base 1 (Fig. 5).

FIG. 2 is a top view of a closed tray.

FIG. 3 shows a top view B without a cover.

The sealing film must be made of a smaller thickness than the thickness of the walls of the base 1 from the ratio:

δ ₁ = (0.2 ÷ 0.5) δ ₂ , where:

δ ₁ - thickness of the sealing film,

δ ₂ - wall thickness of the base (Fig. 4).

This is necessary not only to reduce the cost of the container, but also to reduce environmental pollution with non-degradable polyethylene.

The proof of the optimality of the selected ratio of the thicknesses of the sealing film δ ₁ and the walls of the base δ _{2 is} given in table. one.

From table. 1 it follows that the use of a sealing film with a thickness of less than 0.282 is not possible due to the destruction of the sealing film, and more than 0.58 g gives little material savings.

In addition, as a result of the use of a sealing film, the design of the tray will be simplified by eliminating hinges, locks and complex seals.

The thickness of the sealing film is δ ₁ = 52 ... 55 microns.

FIG. 7-9 shows a photo of the appearance of the tray.

TRAY OPERATION

A food product is placed or poured into a food tray, more precisely into the cavity of the base 1, and then the cover 2 is closed in the form of a sealing film and glued around the entire perimeter of the flange of the base 3.

The cover 2 is sealed along the flange of the base 3 and the flange of the cover 4 (Fig. 2) automatically on the stamp when it is filled with a product. The cover 2 in the form of a sealing film can be opened without significant effort and destruction and re-closed.

To open the lid 2 into a flange of the lid 4 made of a sealing film for two roundings 15 of the flange of the lid 4 on one of the side faces, for example, the third side edge 8 (Fig. 3), tear it off the flange of the base 3 along three side faces: 6, 7 and 8 together with a detached piece of bead 19. The connection of the cover 2 with one of the edges, namely 9, is left (Fig. 8). The cover 2, made of a sealing film, can be temporarily and sufficiently hermetically closed for reuse using the notch 17 and the fold-hinge 18.

If you open a tray sealed with film in the traditional way, you cannot re-close the tray if necessary to use its contents. In this model, the sealing film at the junction with the base flange elements 3 allows you to close and open it any number of times.

This design significantly reduces the cost of the cover and the product as a whole due to the use of inexpensive materials in it instead of expensive film (multi peel).

After the final consumption of the product, the cover 2 is completely removed by tearing it off from the fourth side edge 9 (Fig. 5) and the container is disposed of.

The use of the utility model allowed:

- to reduce the material consumption of the tray,

- ensure a very high tightness of the tray,

- repeatedly use a lid in the form of a sealing film to temporarily seal the tray until the product in it is completely consumed,

- ensure the rigidity of the chute structure without the use of ribs,

- provide control over the opening of the tray,

- ensure vertical stacking of trays.

Claims (7)

1. Tray for food products containing a base with a flange and a lid connected to each other, while the lid is made in the form of a sealing film, which is hermetically soldered to the flange of the base with the possibility of opening and closing or its complete removal, characterized in that the thickness of the sealing film fulfilled from the condition: δ ₁ = (0.2 ÷ 0.5) δ ₂ , where: δ ₁ is the thickness of the sealing film; δ ₂ - wall thickness of the base. 2. A tray according to claim. 1, characterized in that the sealing film is made with the possibility of dead welding of the LOCK type. 3. A tray according to claim. 1, characterized in that the sealing film is made with the possibility of a clear opening of the PELL type. 4. Tray according to claim. 1, characterized in that the base and cover are made of transparent material.

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