RU223690U1 - CONTAINER FOR PACKING HOT PRODUCTS - Google Patents

Abstract

The utility model relates to containers, polymer packaging, and can be used for transporting and storing food products packaged by hot filling. The technical result consists in increasing the reliability of the connection between the container and the snap-on lid. The technical result is achieved by the fact that in a container for packaging hot products containing a rectangular container with a horizontal flange in the upper part and a flap lid, the outer part of the flange is bent down, on the side surface of the container, under the flange, perpendicular to it, on each long side of the side on the surface of the container there are vertical stiffening ribs, the flap lid has a protruding flange directed downwards and a welt, internal protrusions-latches are made on the flanging, stiffening ribs are placed on the inside of the flap lid along the inner side of the welt, according to the decision, the horizontal part of the flanging of the container has a uniform width along the upper edge; on the outer edges of the bent down part of the flanging of the container, in places of curves, there are horizontal hooks designed for connection with the protrusions-latches of the lid-snap cover, while the protrusions-latches have the same angles of inclination. 4 salary f-ly, 5 ill.

Description

The technical field to which the technical solution relates.

The utility model relates to containers, polymer packaging, and can be used for transporting and storing food products packaged by hot filling.

State of the art.

A container is known from the prior art (see RF patent No. 2294309, IPC B65D43/02, publ. 02.27.2007) containing the lower part of the container for receiving the product, as well as the upper part of the container, made in the form of a container lid. A film is applied to the lower part, which is separated from it to open the lower part of the container, closed by the upper part. The lower part of the container has a closed protruding edge extending around the opening of the container, on which the upper part of the container is detachably attached. In the upper part of the container, in the area of its edge, a circumferential recess is made for inserting the edge of the lower part of the container, and the bottom of the recess is formed by a film applied to the upper part of the container. The recess is made as a groove, and the edge in cross section is made as a ridge, so that when the edge is inserted into the recess, a connection of the “groove-ridge” type occurs.

However, this container is difficult to close after the first opening. The lid is difficult to put on the container and must be oriented both along and across relative to the upward-curved edge of the container, and along the guides of the horizontal edge of the container. There may also be insufficient sealing of the container when it is closed again.

A known container for packaging hot products (patent RU 173948, IPC B65D21/04, B65D1/26, published 09.21.2017), which contains a rectangular container with a snap-on lid and a bottom. There is a horizontal flange from the top edge of the container. The width of the flange in the rounded areas at the corners of the container is 0.5÷3 mm greater than on the straight part of the flange. On the inner surface of the container, horizontal stiffening ribs are made at the corners to increase the rigidity of the container and improve the disassembly of containers on the line. In this case, horizontal stiffening ribs are made at a distance from 1/10 to 1/2 of the total height of the container from the bottom. At the bottom of the container there is a welt that follows the shape of the contours of the bottom of the container. In the central part of the rounded corners of the container, starting from the horizontal stiffening ribs, there are internal stacking elements in the form of vertical rounded stiffening ribs on the inner surface of the container with a height of 1/10 to 2/3 of the height of the container. In this case, the horizontal stiffening ribs simultaneously act as ledges on the outside of the container. In addition, the width of the vertical rounded stiffeners is from 0.3 to 0.95 of the depth of the shoulder of the horizontal stiffeners.

However, stacking elements located inside the container reduce ease of use when removing the product. Also, vertical ribs on the inside create a risk of sink marks appearing on the external viewing surface. In addition, the use of a large number of ledges and transitions significantly increases the complexity of manufacturing equipment. The container and the lid are also not securely connected to each other.

A known container for packaging hot products (patent RU 141611, IPC B65D1/10, published 06/10/2014), containing a rectangular container with a protective film and a lid, the container has curves on the sides and tapers downwards. The upper edge of the container is equipped with a horizontal flange, on which a film is applied, closed with a snap-on lid. The width of the flange in the rounded areas at the corners of the container is 0.5÷3 mm greater than on the straight part of the flange. On each long side of the side surface of the container, under the flange and perpendicular to it, there are at least one vertical stiffening ribs with a height of 1 to 20 mm, and on the inner surface of the container at a distance of 1/5÷1/2 of the total height of the container from The bottom has horizontal stiffening ribs in the corners. At the bottom of the container there is a welt that follows the shape of the contours of the container bottom. The cover has a protruding edge; on the inside of the cover, stiffening ribs are placed along the inner side of the edge, and the stiffening ribs are placed along the long side of the cover more often than on the short side of the cover, and on the sides the cover has a flange directed downward. The flange has at least one internal trapezoidal protrusions-latches on the inner sides to ensure fastening of the lid to the edges of the flange of the container. The latch protrusions on the lid are located immediately behind the point of transition of a straight surface into a rounded one, at the point of transition from the short side of the lid to the long side and are located opposite the stiffening ribs placed on the container under the flange, and the latch protrusions have different angles of inclination in the upper and lower parts, the angle of inclination in the upper part α of the protrusion-latch is 3÷80°, and the angle β of the lower part of the protrusion is 10÷80°, while the protrusion-latch has the shape of a right triangle with a rounded corner, where one side is 1.5 times larger than the other -2.5 times, and the hypotenuse is located parallel to the flange of the lid.

However, the presence of a welt at the bottom of the container negatively affects the appearance of the decorated product, since even a minimal displacement of the in-mold label leads to its text part creeping onto the welt, impairing readability. Also, the uneven width of the top flange, which does not in any way affect the manufacturability of the product, creates additional difficulties in the manufacture, control and adjustment of equipment. The container and lid are also not securely connected to each other.

The closest to the claimed one is a container for packaging hot products (patent RU 141610, IPC B65D1/10, published on June 10, 2014), containing a rectangular container with a protective film and a lid, the container has curves on the sides and tapers downward. The upper edge of the container is equipped with a horizontal flange, on which a film is applied, closed with a snap-on lid. The outer part of the flange is bent down, the flange and its outer part repeats the rounding angles of the container. The outer part of the flange bent down has an inclination angle α from 90° to 170°, and the horizontal part of the flange has an increase in width by 0.5÷5 mm in the middle of the long side of the container. On the horizontal surface of the flanging, parallel to the walls of the container, there is a welt with a height of 0.05 to 1 mm, and on the side surface of the container, under the flanging, perpendicular to it, at least one on each long side of the side surface there are vertical stiffeners with a height of 1 to 1 mm. 20 mm, and at the bottom of the container there is a welt that follows the shape of the contours of the container bottom. The lid has a protruding flange, on the inside of the lid there are stiffening ribs along the inner side of the welt, and the stiffening ribs are placed along the long side of the lid more often than on the short side of the lid, and on the sides the lid has a flange directed downward, on the flanging there are internal protrusions-latches trapezoidal in number at least one on the inner sides to ensure fastening of the lid to the edges of the flange of the container. The latch protrusions on the lid are located immediately behind the point of transition of a straight surface into a rounded one, at the point of transition from the short side of the lid to the long side, and their edges are located at a distance of no more than 1/2 the length of the latch protrusion from the vertical stiffeners placed on the container under the flange . The latch protrusions have different inclination angles in the upper and lower parts, the inclination angle β in the upper part of the latch protrusion is 3÷80°, and the inclination angle γ in the lower part of the protrusion is 10÷80. In this case, the protrusion-latch has the shape of a right triangle with a rounded corner, where one side is 1.2-3 times larger than the other, and the hypotenuse is located parallel to the flange of the lid.

However, the presence of welts at the bottom of the container and the horizontal part of the flange and the unevenness of its width, as well as different angles of inclination of the sides of the protrusions-latches of the lid-snap cover, while technologically and operationally unjustified, create difficulties in the manufacture and operation of the equipment. The container and the lid are also not securely connected to each other.

Disclosure of the essence of the utility model.

The technical problem is to develop a container that eliminates the shortcomings identified in analogues.

The technical result is to increase the reliability of the connection between the container and the snap-on lid.

The technical result is achieved by the fact that in a container for packaging hot products containing a rectangular container with a horizontal flange in the upper part and a flap lid, the outer part of the flange is bent down, on the side surface of the container, under the flange, perpendicular to it, on each long side of the side surface of the container, there are vertical stiffening ribs, the flange-lid has a protruding flange directed downwards and a welt, internal protrusions-latches are made on the flanging, on the inside of the flap-lid along the inner side of the welt there are stiffening ribs, according to the decision, the horizontal part of the flanging of the container has a uniform width along the upper edge; on the outer edges of the bent down part of the flanging of the container, in places of curves, there are horizontal hooks designed for connection with the protrusions-latches of the lid-snap cover, while the protrusions-latches have the same angles of inclination.

The latch protrusions have an inclination angle of 40° relative to the horizontal. The bottom of the container is made of even thickness. A protective film is applied to the flange of the container. An IML stamp or label is applied to the walls, bottom of the container and the snap-on lid.

Brief description of the drawings.

The utility model is illustrated by drawings, where in Fig. 1 – shows a side view of the container; in fig. 2 – top view of the container; in fig. 3 – view of the container from the bottom; in fig. 4 – general view of the lid; in fig. 5 – snap-on cover engagement unit.

Positions in the drawings indicate:

1. capacity;

2. snap-on lid;

3. bottom of the container;

4. container flanging;

5. the outer part of the flange bent downwards;

6. vertical stiffeners;

7. protruding edge of the lid;

8. stiffening ribs of the cover;

9. flange of the lid;

10. protrusion-latch;

11. horizontal hook.

Implementation of a utility model.

A container for packaging hot products, made by injection molding, contains a rectangular-shaped container 1 with a snap-on lid 2 and a bottom 3. The container 1 has curves on the sides and tapers downward. From the upper edge of the container 1 there is a horizontal flange 4 with the outer part 5 bent down, intended for sealing by sealing with a film (not shown in the figure). The bottom of container 3 is close in shape to a rectangular shape, the rounding angles are minimal. The flange 4 and its outer part 5 repeats the rounding angles of the container 1. The outer part of the flange 5, bent down, has an angle of inclination from 90 to 170 degrees. The horizontal part of the flange 4 has a uniform width along the upper edge of the container 1.

On the side surface of the container 1, under the flange 4, perpendicular to it, at least one on each long side of the side surface there are small (from 1 to 20 mm) vertical stiffeners 6, which serve for stacking the container and easy dismantling of containers on the conveyor before filling. The flap lid has a protruding edge 7. Stiffening ribs 8 are located on the inside of the lid along the inner side of the welt. Stiffening ribs are placed along the long side of the flap lid more often than on the short side of the lid. On the sides the lid has a flange 9 directed downwards. In the lower part of the flange there are internal protrusions-latches 10, at least one on the inner sides. The protrusions-latch 10 on the cover-latch 2 are located so that the point of transition of the straight surface into a rounded one is in the middle of the protrusion-latch 10, and their edges are located at a distance of no more than 1/2 of the length of the protrusion-latch from the vertical stiffeners 6 placed on the container under the flange 4. On the outer edges of the bent down part of the flange of the container 4, in the places of rounding, there are horizontal hooks 11 intended for connection with the protrusions-latches 10 of the flap lid 2.

The latch protrusions 10 have equal inclination angles of 40° from the horizontal. This is due to the use of standard symmetrical tools in the manufacture of equipment.

Since the container flange 4 has an outer part 5 bent downwards, which is highly flexible, then when putting on the flange lid 2, when passing the protrusion-latch of the flap lid 2, the outer part 5 of the flange 4 bends inwards, the lower edge of the flange of the flap lid with the located on it is bent outward by the protrusions-latches, and then, after the protrusion-latch passes through the edge of the lower part of the flange, the flanging of the flange lid and the flanging of the container return to their original position, while the protrusion-latch 10 of the flange cover 2 is firmly fixed by the edge of the lower part of the flanging of the container 4 containers.

The snap-on lid 2 fits rigidly onto the container capacity 1. The design of the flap lid 2 allows the use of films (foil, plates) with large tolerances in size and thickness for sealing containers, because a change in the height of the flange 4 after sealing with film, or a film protruding beyond the horizontal part of the flange 4 will not affect the quality of fit of the flange lid 2 on the flange of the container container 4. The bottom of the container 3 is made of even thickness.

The inventive container is made without welts at the bottom of the container and the horizontal part of the flanging of the container.

The walls, bottom of the container and the snap-on lid can be printed or IML labeled.

The use of the proposed container will allow packaging of hot products, will simplify the container manufacturing technology and reduce its cost, simplify the technology of closing the container with a snap-on lid, reduce the cost of packaging equipment, increase the shelf life of the product and preserve its nutritional value by increasing the reliability of fastening the snap-on lid to containers after removing the film and resealing. It also ensures easy and reliable opening and closing of the lid.

Claims (5)

1. A container for packaging hot products, containing a rectangular container with a horizontal flange in the upper part and a flap lid, the outer part of the flange is bent down, on the side surface of the container, under the flange, perpendicular to it, on each long side of the side surface of the container, there are vertical stiffening ribs, the flange-lid has a protruding flange directed downwards and a bead, internal protrusions-latches are made on the flanging, on the inside of the flange-lid along the inner side of the welt there are stiffening ribs, characterized in that the horizontal part of the flanging of the container has a uniform width On the upper edge, on the outer edges of the downwardly bent part of the flanging of the container, in the places of rounding, there are horizontal hooks designed for connection with the latch protrusions of the flap lid, while the latch protrusions have the same angles of inclination. 2. The container according to claim 1, characterized in that the latch protrusions have an inclination angle of 40° relative to the horizontal. 3. The container according to claim 1, characterized in that the bottom of the container is made of even thickness. 4. The container according to claim 1, characterized in that a protective film is applied to the flange of the container. 5. A container according to claim 1, characterized in that an IML seal or label is applied to the walls, bottom of the container and the lid.