RU2495805C1 - Key to open or close can - Google Patents

Abstract

FIELD: packing industry.

SUBSTANCE: solution relates to cans, mostly for liquids, for instance, metal beer cans, and to keys for opening or closing of cans. The key 1 for opening and closing a can 2, representing a part made by stamping, has a cut segment 10 and a plug 7 with a cavity having a lock 14, made with a convex profile at the outer side of the plug and fixing the plug 7 in the closed position. There is a gap between the lock 14 of the plug 7 of the key and the edge of the opened segment of the cover. The key and the plug are made of a single whole stamped part. The key 1 has a button 3, serving for mechanical action at the key, which protrudes beyond the rim of the can cover. The plug 7 is fixed in the profile groove of the can cover. The key has a contact front element 8, acting at the opened segment of the can cover and serving as a small arm of the lever, and bent elements 19 of the key edge and a through segment 20 in the button of the key.

EFFECT: invention provides for simplification of a can opening process due to reduction of necessary manipulations during opening.

11 dwg

Description

The solution relates to cans, mainly for liquids, such as metal beer cans, and more specifically to keys for opening or closing cans. Cans are designed for filling, storing, transporting and using the liquid in the can (beer, juices, etc.). Typically, cans are made of metal, such as aluminum.

Known US patent document D653561, in which the specified key is placed on top of the vessel for the liquid, made in the form of a glass (1).

Known US patent document D651898, in which the key is made in the form of a petal (2).

Known US patent No. 6059137, which describes a key that has a slotted segment and a cork with a cavity having a lock made with a convex profile on the outside of the cork, fixing the cork in the closed position, the gap between the key cork lock and the edge of the lid opening segment (3 )

The objective of the proposed solution is to develop a key for opening and closing the can, which serves both to open the can and to close it in any conditions, especially when using the can by the driver while driving, as well as by a disabled person or a child, and the technical result is to increase the usability of the can when opening and closing with a key and improving safety during operation of the can. The proposed design simplifies the process of opening the can by reducing the necessary manipulations for opening, making this process more convenient.

A key 1 for opening and closing the can 2 is proposed, which is a part made, for example, by stamping, interacting with the axis of the lid of the opened can, characterized in that it has

- button 3, which serves for mechanical action on the key 1,

- contact front element 8, acting on the open segment 15 of the lid 5 of the banks 2 and serving as a small lever arm,

- slotted segment 10 of the key 1, providing with the axis 9 the fulcrum of the key as a lever and at the same time serving as an element that allows the key to rotate around the axis of the lid,

- the plug 7 has a lock 14, made convex from the outside of the plug profile, fixing the plug in the closed position.

- the key plug has a mantle 30,

- the key has a rubber-plastic or synthetic coating 21 in the lower part 31 of the cover 5 and in the lower part of the mantle 30 of the tube 7,

- the key has curved elements 19 of the edge of the key and the through segment 20 in the key button,

- the tube 7 has an inner cavity 22 of the tube, the wall 23 of the cavity of the tube, the bottom 24 of the cavity of the tube,

- there is a gap 26 between the key button 3 of the key and the rim 11 of the can lid, necessary to remove the plug 7 from the lock at the moment of opening segment 15, as well as the gap 27 between the lock 14 of the key plug and the edge 28 of the cut can lid.

The proposed solution is illustrated in the drawings, where: FIG. 1 is a general view of a key on a bank, FIG. 2 is a general view of a key, FIG. 3 is a section of a key along lines AA ₁ and BB ₁ , and also a side view and a section thereof (right) , 4 - the position of the key (top to bottom): in the initial position, when the key is pressed, the moment the jar lid is opened, figure 5 (top to bottom): closing the lid with a stopper and locking, removing the key from the lock, fully open the key plugs, Fig.6 - the intermediate position of the key plugs after opening the lid, Fig.7 - the position of the key after closing Ania lid stopper.

The key 1 represents a part made, for example, by stamping.

The numbers in the figures indicate:

1 - key, 2 - metal can, 3 - key button that controls the key, 4 - notch on the lid of the can, bounding the segment of figure 1; 5 - can lid, 6 - unopened sector of the can lid segment, 7 - key plug 1, 8 - contact front element of the key, 9 - axis of the can lid, 10 - slotted key segment, 11 - rim of the can lid, 12 - bandage or cork seal 7, 13 - contact rear element (wall) of the cork 7, 14 - lock of the cork, 15 - openable segment of the lid of the can, 16 - hole in the key under the axis of the lid, 17 - profile recess on the lid of the can, in which the key plug is located before opening segment; 18 - graphical or notched symbols on the lid of the can, showing the possible direction of movement of the key, to close the open segment of the can, 19 - curved elements of the edge of the key, 20 - the through segment in the key button, 21 - synthetic, possibly rubber-plastic coating of the lower part lids, 22 - the inner cavity of the cork, 23 - the walls of the cavity of the cork, 24 - the bottom of the cavity of the cork, 25 - the conical shape of the cork, 26 - the gap between the button 3 of the key and the rim 11 of the lid of the can, necessary to remove the cork 7 from the lock at the time of opening the segment fifteen; 27 - the gap between the key plug lock and the edge of the cut can lid, 28 - the edge (edge) of the cut can lid, 29 - the junction of the lid with the can, 30 - the key plug mantle, 31 - the lower part of the can lid, 32 - graphic symbols on the button 3 keys, indicating the direction of action of the force F at various stages of the movement of the key.

When using a key, the following functional components are important.

Button 3 is used for mechanical impact - the application of force F to the key when opening / closing the can by pressing it. The force vector is shown by this symbol.

The plug 7 of the key 1 serves to close the jar lid that has been opened up to this segment 15. The key plug is formed by the walls 23 and the bottom 24 (figure 3). The conical shape of the cork 25 enables a smoother setting and removal of the cork from the lock 14.

The bandage or seal 12 of the plug is intended to improve sealing between the plug and the open edges of the cap segment when the key closes the cap. Element 12 is applied to the mantle 30 of the cork along the upper perimeter of the cork at the point of contact with the lid, or element 30 covers the entire surface of the cork in its lower part. Element 30 is made of flexible and sufficiently durable synthetic or rubber-plastic material, which has permission to use in contact with food liquids.

The lock 14 of the plug is designed to fix the plug of the key in the closed position. The lock is located on the rear wall 13 of the plug 7, it can have a different shape (figure 3), but always in the form of a profile convex from the outside. Due to the convex shape of the lock of the cork with respect to the edge 28 of the lid (pos. A of Fig. 5), the cork is fixed in the closed position. In this case, only the edge of the lid prevents the lock from exiting from the closed position. The lock can be made either by stamping on the contact rear element of the plug element 13, or by obtaining a similar stamping profile made from the material of the element 12 deposited on the plug.

The cut key segment 10 (FIGS. 1, 2) is located at some distance from the key hole 16 (FIGS. 2, 3). The segment provides a mechanical connection of the key with the axis of the cap and makes it possible to raise and lower the key in a vertical plane, leaning through it on the axis 9 of the cap (figure 1). With its help, a support point of the lever is formed, which is the key, which acts through its contact element 8 on the open sector 15 of the cover.

The hole 16 in the key (figure 2, 3) under the axis of the lid is intended for fastening through the axis 9 of the key 1 to the lid of the can 2 (figure 1). When they are connected, a key support point is provided through segment 10 with a can. The connection of the key with the axis is ensured by the nozzle of the key on the axis with subsequent mechanical action on the upper part of the axis to unfasten it. This ensures sufficient rigidity of their joints in the vertical plane with the possibility of free movement of the key in the horizontal plane.

The contact front element 8 of the key (Figs. 1, 2, 3) is intended for mechanical action on the open sector 15 of the lid as a small shoulder of the lever formed by the key and the axis of the lid of the can, performing the fulcrum of the lever (Figs. 4, 5). The contact form of the key can be changed depending on the shape of the opening segment of the lid or the pattern of the notch bounding segment 4 (Fig. 1).

Curved elements 19 of the key (figure 2, 3) are used to give greater strength to the key along its edges. These elements can be obtained by stamping in the manufacture of the key.

The contact rear element (wall) 13 of the plug (FIG. 3) is that part of the plug wall on which the lock 14 is located, fixing the key plug in the closed position (pos. A of FIG. 5).

The end-to-end segment 20 on the key button (FIGS. 1, 2, 3) provides more reliable contact with the button 3 when exposed to it. In addition, the through element improves the strength properties of the key button due to the fact that its edges are bent around its perimeter.

The inner cavity 22 of the tube is formed by the walls 23 and the bottom 24, has a conical shape 25 (Fig 3), decreasing from top to bottom.

The walls of the cavity 23 of the tube (figure 2, 3) form the vertical walls of the tube.

The bottom of the cavity 24 of the cork is the lower flat part of the cork; when the cork is closed, it goes inside the open segment of the can lid.

The gap 26 between the button of the key 3 and the rim 11 of the lid of the can is necessary for the possibility of displacement of the plug 7 when the lid is opened with the button (pos. A of Fig. 5).

The gap 27 between the lock 14 of the cork and the edge 28 of the cut-off lid of the can (pos. B of FIG. 5) is formed after the force F is applied to the button 3 of the key to remove the cork from the lock and the possibility to open the can segment.

The edge 28 of the can lid (pos. 5) is a part of the can lid formed after cutting off its segment 15.

The mantle 30 of the key plug (FIGS. 2, 3) is the upper flat part of the plug, which overlaps along the perimeter of the joint line between the plug and the cut-off segment of the cap after it is closed.

The lid 5 of the can has the following elements located on it (figure 1).

The axis 9 of the lid of the can (Fig.1, 4, 5) performs the function of the power element of the lid. It is made in such a way that it is an integral part, made during stamping of the cover. On the axis is attached a key 1 (figure 2), which can be moved both in the vertical and horizontal plane. When moving the key in a vertical plane, the axis is for him a fulcrum as an acting lever.

The bounding segment of the notch 4 (FIG. 1), applied to the surface of the lid, shows the contour along which, under the influence of the key, the lid opens.

The opening segment 15 of the lid (Figs. 1, 4, 5) is a part of it that opens under the influence of a key.

Profile recess 17 (Figs. 4, 5, 6) - the key is initially located in it before opening the lid.

Graphic symbol 18 (figures 1, 6, 7) on the lid can be made with a coloring substance or a notch. It is applied to indicate the direction of movement of the key after opening the can and at its closure.

The unopened sector 6 of the can segment (pos. 4, 5, 6) is part of the lid segment, which, after opening, remains uncut with the key due to the absence of a notch on it and which holds the cut-out part of the lid segment inside the can.

Rubber-plastic (synthetic) coating 21 (pos. A, B, C of Fig. 4) is intended to cover the lid of the can from the inside. This coating can perform two functions:

- when the opening segment 15 has a continuous upper notch on the lid of the can and does not have a sector 6 of the lid segment, and when opened, it is completely disconnected from the metal part of the lid, but segment 15 continues to be held on it inside the can due to the undisturbed part of the specified coating;

- a fragmented or complete coating of the inner surface of the lid of the can with said material can replace the need to use a sealant in the joint 29 of the lid 5 and can 2 (pos. A, B, C of Figures 4, 5).

The key is used as follows.

In the initial position, the key is in sector 17 of the lid of the can, having a small recess. To open the can, it is necessary to act on the button 3 so that the force vector F (pos. B of Fig. 4) is directed vertically upward or at a slight angle to the vertical towards the axis of the lid. When the key moves upwards due to the lever, it creates sufficient force exerted on the opening segment of the lid with its front contact element to open it. There is a cut of the indicated segment along the notch line 4 (Fig. 1), with the exception of a small part 6 (pos. B in Fig. 4, Fig. 6). The opening segment of the lid goes inside the can, but remains attached to the lid due to its uncut part. If the lid of the can and the opening segment from the inside is covered with a rubber-plastic (synthetic) coating, then, if there is a corresponding notch, a complete cut of the metal part of the segment is allowed, but the segment remains attached to the inner side of the can lid due to the uncut part of the specified inner coating. In this case, the edge of the completely cut off segment of the lid will be flat along its entire perimeter, which will significantly improve the tightness after closing it with a stopper.

Thus, when the opening segment of the lid fully enters the can, the lid is considered open.

To close the jar, i.e. open to this segment, first you need the influence of the force F on the key button, acting in the horizontal plane, regardless of the direction in which it is applied. The key is moved until it is compatible with the open sector 15 of the lid 5. After combining them to close the cans, press the button 3 (pos. A of Fig. 5) in a vertical plane from top to bottom with respect to the base of the can. The key plug 7 when moving down reaches the position when its lock 14 goes under the edge 28 of the segment (pos. A of FIG. 5) of the can cover. The key plug locks, as its exit from the segment is impossible due to counteraction to the lock of the specified edge. The can lid is then considered to be closed with a key 1 (pos. A of Fig. 5, Fig. 7).

To open the sector of the lid of the can, closed by a stopper of the key, it is necessary to apply a force F (pos. B of Fig. 5) acting on the button 3 of the key at an angle of about 45-50 degrees. Toward a horizontal plane towards the center of the can or axis 9 of the lid. In this case, due to the gap 26 (pos. A of Fig. 5) between the key button and the rim 11 of the lid, the key plug is moved to the center of the can, sufficient to exit the lock 14 of the plug (pos. B of Fig. 5) from its articulation with the edge 28 of the cap cans. Upon further lifting the key, the plug completely out of contact with the cap (pos. In figure 5). Further movement of the key in any horizontal direction makes the segment completely open (Fig.6).

Information sources

1. US Patent Document Design No. D653561S, publ. 02/07/2012.

2. US patent document design No. D651898, publ. 01/10/2012.

3. US patent for the invention No. 6059137, publ. 05/09/2000.

Claims (1)

A key for opening and closing a can, which is a stamped part that has a slotted segment and a cork with a cavity, having a lock made with a convex profile on the outside of the cork, fixing the cork in the closed position, the gap between the key cork lock and the edge of the segment to be opened covers, characterized in that
- the key and cork are made of one whole stamped part,
- there is a button that serves to mechanically act on the key, which protrudes beyond the rim of the lid of the can,
- the plug is fixed in the profile recess of the lid of the can,
- there is a contact front element acting on the opened segment of the lid of the can and serving as a small lever arm,
- the key has bent key edge elements and a through segment in the key button.

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