RU33096U1 - BANK COVER - Google Patents

Description

BANK COVER

The plastic snap-on lid is intended for repeated use when closing predominantly cylindrical cans, namely, for closing cans with coffee. It is used to protect against drying, access of foreign objects and odors to the contents of the can after removing the tin can. The can is for cans and can also be used for various cans, the overall dimensions and design of which allow it to be used.

Known lids made of plastic and metal, designed for corking various cans and bottles, worn using appropriate edge-bending devices. Uncorking this kind of cracker is carried out using a special can opener by bending the side wall of the cracker. This leads to deformation of the wall of the cover, after which it loses its properties and the reliability of the subsequent capping of the product decreases sharply. The use of plastic covers significantly increases the reliability of product capping during repeated use.

Known plastic hinge (patent EP 21036) made in the form of a cap of synthetic resins, which is worn on the neck of the vessel. The cap is made of synthetic resin. On the inner surface of the side wall has a protruding shoulder, which in a sealed vessel covers the shoulder on the neck of the vessel. The vessel is uncorked with an ordinary cap opener. Since the cap consists of an elastic material, when opened, it only expands elastically and returns to its original shape. Therefore, this cap can be reused.

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IPC 65 D 41/48

Closest to the claimed technical solution is a standard plastic lid designed to seal cans of cardboard, cardboard, plastic). Products in such cans are usually additionally hermetically isolated from the external environment by a tin screwdriver made in the form of a film of thick metal foil. Such a plastic hinge is mainly intended to protect products in the event of prolonged and repeated use. The cover is made in the form of a flat round bottom; and connected to the side walls. However, such an attachment does not have sufficient reliability due to a loose fit to the walls of the can, and also does not provide fixation of the cans if they are placed on top of each other, for example during storage or transportation. In addition, repeated use leads to the appearance of cracks and deformation of the fastening elements due to the imbalance in the ratio of the thickness and length of individual elements.

To ensure the possibility of repeated use while increasing the reliability of product corking, mainly coffee, while simultaneously securing the cans when placed one above the other, the plastic can lid includes a round base with a diameter of 77 to 90 mm. with a cylindrical side wall adjacent to it with a height of 6 to 10 mm and a thickness of 1 to 1.5 mm, on the inner surface of which a convex shoulder is made in the form of an annular or trapezoidal thickening with a height of 1.5 to 3 mm. On the outer surface of the base there is a centering safety annular protrusion with a height of 1 to 3 mm, with an internal diameter of 65 to 85 mm and an external diameter of 70 to 88 mm, made in the cross section in the form of a trapezoid, with the external angle of inclination of the trapezoid to the base on 5-20 exceeds the value of the internal angle of inclination of the trapezoid, which is 95 ° to the base.

surface, the angle of inclination of which to the base is 45-60 °, the outer diameter of the centering safety protrusion on the bottom surface is less than or equal to the inner diameter of the side wall of the attachment. In addition, the base is equipped with

a round-shaped recess in the center of the base and directed inwardly. the diameter of the convex part of the recess directed into the inside of the lid is

3.2 - 3.8 mm. Due to the experimentally selected range of sizes of the lid elements, the fastener reliably closes the contents of the can, and due to its elasticity provided by the combination of the thicknesses of its elements with their length, it can easily be removed without breaking and deformation.

In fig. 1 shows a sectional view

1-base

2-side wall;

3-flange, made in the form of an annular thickening;

4-centered safety strip;

5-depression in the form of a truncated cone;

6-round recess

The lid is put on a jar. The bead 3, located on the inner part of the side wall 2 of the fastener, made in the form of an annular thickening tightly surrounds the jar, clicks on its side walls, thereby ensuring that the lid is kept on the jar and protects the products, mainly coffee, from exhaling and acquiring extraneous odors, and it also prevents unauthorized entry of foreign objects into the bank. Due to the elasticity of the material, the clapper can be easily removed and put on. It is important to select the sizes of the fastener elements, which makes it reliable and easy to use. Depth 5, at the base of the fastener 1, side

the walls of which are made at an angle of 30 ° -60 to the surface of the bottom, improves its elasticity while ensuring the necessary rigidity of the cover as a whole. Creeping; 6 on the inner surface 1 of the fastener also increases the rigidity and reliability of the structure as a whole. When during transportation and / or storage the caviar cans are placed one on top of the other, the centering strip is inside the flange of the bottom of the can and thereby eliminates the movement of the cans relative to each other. As an example of a specific implementation, the hinge for caviar can No. 22 of GOST 5981-88 is shown. The outer diameter of the screwdriver is 77.5 mm, the height of the lid is 6.1 mm, and the height of the safety ring protrusion is 0.5 mm. The centering safety annular protrusion located on the outer surface of the bottom is made in cross section in the form of a trapezoid with an external angle at the base of 105 °. The recess in the central part of the bottom is made in the form of a truncated conical surface with an angle of inclination of the side walls of 45 °, the outer diameter of the centering safety protrusion is the bottom surface is 72 mm, the inner diameter is 68.8 mm. A round-shaped thickening on the bottom was made in the center of the bottom on the inside with a height of 7 mm and a diameter of 3.6 mm. In the recess in the central part of the bottom is the applicant’s logo.

The claimed design for cans, mainly coffee cans, can be carried out in the conditions of industrial production using standard equipment, modern materials and technology. There is a full possibility of serial multiple reproduction of the proposed solution of various sizes.

Claims (2)

1. A lid for a can, including a rounded base with a diameter of 77-90 mm with an adjacent cylindrical side wall 6-12 mm high and 1.0-1.5 mm thick, on the inner surface of which a convex shoulder is made in the form of an annular thickening with a height from 1.5 to 3 mm, on the outer surface of the base a centering safety annular protrusion is made with a height of 1 to 3 mm, with an inner diameter of 65 to 85 mm and an outer diameter of 70 to 88 mm, made in cross section in the form of a trapezoid, with this is the external angle of inclination of the trapezoid to the base June exceeds the value of the internal angle of inclination of the trapezoid to the base by 5-20 °, the central part of the bottom is provided with a recess in the form of a truncated conical surface, the angle of inclination of which to the base is 45-60 °, the outer diameter of the centering protrusion on the bottom surface is less than or equal to the inner diameter side wall of the cover. 2. The lid according to claim 1, characterized in that the base is provided with a round-shaped recess in the center of the base and directed inside the lid, while the diameter of the convex part of the recess directed into the inside of the lid is 3.2-3.8 mm.