KR20080021600A - Pouring lid for cans - Google Patents

Abstract

A pouring lid for cans of the type comprising a tubular body (10) having an annular upper wall (12) which presents an inner face (12b), an opening (13) and having any point of its inner face (12b) positioned at a height in the interior of the tubular body (10), at minimum equal to the height of another point of said inner face (12b) positioned radially externally. A pouring lid (20) is removably fitted and retained in the opening (13) and comprises a closing wall (21) provided with a median opening (21a) and externally carrying a tubular projection (27) generally provided with an obturator (30), any point in the inner face of the closing wall (21) of the pouring lid (20), when mounted to the can, being positioned at a height, measured in the interior of the tubular body (10), at minimum equal to the height of any other point of the inner face (12b) of the annular upper wall (12). ® KIPO & WIPO 2008

Description

Flow lid for cans {POURING LID FOR CANS}

The present invention is generally formed of a metal plate and provides a polygonal or circular cross section, and has an end upper lid shaped to allow multiple opening and closing operations during the gradual consumption of bulk products stored in cans in particulate or liquid form. A flow lid is applied to a provided can.

Cans of the type contemplated herein are generally described in Applicant's Brazilian patent application PI0306608-8, the lower edge of which is double-joined or integrally connected to the bottom wall and the upper edge of the upper annular wall. Double-joint or secured to the outer peripheral edge, having an inner peripheral edge defining an intermediate opening for accessing the interior of the container, and seating or holding a reclosable lid, which may be made of metal plate or plastic material And a tubular body formed by one or more peripheral sidewalls having a sheet shape.

In many solutions of the known can structure, in the radial extension of the annular top wall defined between its outer peripheral edge and its inner peripheral edge where an opening for access to the inside of the can is formed, the can When inverted, at least one circumferential region is provided that defines a barrier that prevents free radial and gravity-flowing of the bulk product seated on the annular top wall of the can towards the opening of the can. .

The applicant's patent application PI0306608-8 of this application claims that this type of can is practically impossible or at least very difficult to withdraw the entire bulk product from the interior of the can by a simple gravity effect and is provided with an annular top wall. It mentions a known difficulty to pour out the whole bulk product that is stored in the. It is mentioned, whether in powder, granular, or liquid form, when the can is turned upside down after the lid is removed, a small amount of product tends to be held against the annular top wall.

Because of the drawbacks mentioned above, the solution proposed in the prior document PI0306608-8 is that, when opened and upside down, the stored product seated against the annular top wall is subjected to gravity radially towards the opening of the can. It also provides a can to flow in the outward direction of the can.

The patent application described above also provides a seat in the annular top wall of the can, which is a container for storing the product, with a lid seated which can be opened during operation and can be closed again closed several times.

According to the prior structural proposal of the applicant of the present invention, the annular upper wall of the tubular body has any point on its inner surface, measured inside the annular body, and located at least radially outward, Aligned with the point and maintained at the same height as the height of another point of the adjacent inner surface.

The above-described structure allows the annular top wall of the can to guide the product towards the opening of the tubular body while allowing the flow of the product stored inside the tubular body of the can when the can is turned over. It works as a kind of hopper.

When the lid is removed and the container is turned upside down, the above-described solution causes the bulk product stored in the can to flow completely from within the can, but through the opening of the annular top wall of the can There is a difficulty in controlling and guiding, and the more important the need to transfer the bulk product from the inside of the can to another particular location to accommodate a certain amount of the bulk material, the more severe the difficulty is, Occurs when particulate material is supplied to a soap and detergent reservoir of a washing machine or when it is desirable to transfer a relatively accurate amount of bulk material into a single or reduced amount of container designed.

Due to the above-mentioned disadvantages of the prior art concerning the guidance and control of bulk products exiting through the openings provided in the annular top wall of the can, the invention is contemplated herein and, when fitted to the top opening of the can, It is a general object to provide a flow lid for a can of a type that allows the product stored inside the can to be controllably and guided out through the upper opening.

A more detailed object of the present invention is to provide a flow spout which is arranged to direct the flow of the bulk material exiting the can to a desired place and a flow lid as described above which is integrated, centrally and outwardly.

It is another object of the present invention to provide an inner surface of the can, without defining any point located at a lower level than the enclosing area of the annular top wall, wherein the can be maintained in alignment with the annular top wall of the can. It is to provide a flow lid as one.

To achieve the above object, the present invention provides a tubular body having at least one peripheral side wall, an outer edge fixed to the annular side wall, an inner surface facing the inside of the tubular body, and an inner edge defining an opening. And an annular top wall, and a flow lid for a can comprising a flow lid releasably fit and held in the opening for closing the can, wherein the annular top wall is formed at a predetermined height of the inner surface thereof. Having a point, the constant height is measured inside the tubular body, at least radially outward with respect to the point, and equals the height of the other point of the aligned and adjacent inner surface.

According to the invention, the flow lid comprises a closing wall provided with an intermediate opening and having a tubular protrusion outwardly aligned with the intermediate opening, wherein any point of the inner surface of the closure wall of the flow lid is In a state mounted to the can, the flow lid measured inside the tubular body and at least at the same height as the height of any other point on the inner surface of the annular top wall.

With the above-described structure, after removing the lid of the type disclosed in the Brazilian patent application PI0306608-8, it is possible for the user to close the can again by using the flow lid of the above-described type, and the fixed amount stored in the can It can be contemplated that the flow lid can only be used when it is necessary to controllably release the bulk product, and after purchasing the product, it can remain continuously fitted to the annular top wall of the can. .

After the original closure lid has been replaced by the flow lid purpose of the present invention, the seal, which can be manually operated by the user, can be manually operated by the user, allowing the progressively consumed bulk product to be stored sealed inside the can. The tubular projection of the flow lid provided in the region should also be considered.

The structure disclosed herein primarily provides the can to the closure wall of the lid when the product is finished, until it reaches the intermediate opening extending outwardly through the tubular protrusion defining the flow spout. From the region adjacent the side wall of the flow lid, the flow lid does not interfere with the free radial flow of the stored product.

1 schematically shows a partial exploded cross-sectional view of the top of a can and of each flow lid constructed in accordance with the present invention.

Figure 2 schematically shows a partial exploded cross-sectional view of the top of a can closed by the flow lid.

FIG. 3 schematically shows an enlarged view of the portion of FIG. 2 showing an annular top wall of the can and a seating area between the flow lid and the annular top wall. FIG.

4 is a schematic view similar to FIG. 2 but showing the can in an inverted position and including the rest of the product flowing by gravity through the flow lid and tubular protrusion.

As shown in the accompanying drawings, the present invention applies to cans for bulk products in powder, granular, or liquid form and is generally made of a metal plate and has a circular cross section (not shown) with a peripheral sidewall 11. A tubular body 10 having an arbitrary polygonal cross section with a plurality of peripheral sidewalls, the tubular body 10 usually having an upper edge 11a of the peripheral sidewall 11 of the tubular body 10. An annular top wall 12 is provided which provides an outer edge 10a which is connected and fixed to a double joint, and the annular top wall 12 has an inner surface 12b facing the inside of the tubular body 10 and the An inner edge 12c defining an opening 13 is provided to allow access to the interior of the tubular body 10.

The can of the present invention, as described above, is usually made of plastic and adds a flow lid 20 having a shape that is releasably fit and woven in the opening 13 to close the opening 13. It includes.

According to the structure shown, the annular top wall 12 of the tubular body 10 of the can is configured to provide any point of its inner surface 12b, which is preferably located at a height. Measured inside the tubular body 10 and located at least radially outward with respect to the arbitrary point, it is equal to the height of the other point of the aligned and adjacent inner surface 12b.

The preferred configuration defined above is interrupted by a step in which any radial alignment of the inner surface 12b of the annular top wall 12 lies on a plane that is continuous or perpendicular to the axis of the tubular body 10. It is possible to take the form of a lamp, which can be inclined, and the wrap is inclined upwardly from the peripheral side wall 11 and towards the opening 13 of the tubular body 10.

In the preferred embodiment shown, the points of the inner surface 12b of the annular top wall 12, which are located according to the same circumferential alignment concentric with the axis of the tubular body 10, are perpendicular to the axis. When applied to a tubular body 10 that is included in a plane and has a circular cross section, the annular top wall 12 is obtained by rotation of a generatrix around the axis of the tubular body 10 and the annular shape. It is intended to be defined as a revolution surface defined by a single profile of the top wall 12.

As shown in the figure, the inner surface 12b of the annular top wall 12 provides an increasing height towards the opening 13 gradually and continuously along at least a portion of its radial extension. It has a configuration. Thus, in principle, the inner surface 12b of the annular upper wall 12 is inclined with respect to the axis of the tubular body 10 from the outer edge 12a which is fixed to the peripheral side wall 11. It has the form of a straight segment extending to the inner edge 12c defining the opening 13.

However, taking into account that the annular top wall 12 is usually double jointed to the upper edge 11a of the peripheral side wall 11, the annular top wall 12 is the periphery of the tubular body 10. It has an inner surface 12b that provides an outer radial extension 12d adjacent to the side wall 11 and the tubular body 10 lies on a plane perpendicular to the axis. The outer radial extension 12d facilitates mounting of the device for double connection of the annular top wall 12 to the peripheral side wall 11.

In addition to the outer radial extension 12d, preferably, the inner surface 12b of the annular top wall 12 provides an inner radial extension 12e adjacent to the opening 13, the tubular Lies on a plane perpendicular to the axis of the body 10, the plane being generally parallel and on which the outer radial extension 12d of the inner surface 12b of the annular top wall 12 lies. Located at a height slightly above the height of the vertical plane, the outer and inner radial extensions 12d, 12e are connected to each other by conical portions of the inner face 12b of the annular top wall 12.

According to the structure shown, in order to form a circumferential rib 15 having a cross section defined by at least part of the arc of the circle, the inner edge 12c (FIG. 2) of the annular top wall 12 is Bend upwards and radially outwards, the center lies on a plane P perpendicular to the axis of the tubular body 10 and bisected by the plane P. FIG.

In this structure, the flow lid 20 has a circular arc-shaped cross section facing downward, and when the flow lid 20 is seated in the can, the circumferential direction of the annular upper wall 12 The rib 15 includes a closing wall 21 integral with the peripheral side 22 having a shape that externally defines a circumferential cradle 23 (FIG. 3) fitted therein. The peripheral side portion 22 of the closure wall 21 of the lid 20 has the circumferential rib 15 fitted into the circumferential cradle 23 of the flow lid 20 and the flow lid When the 20 is fitted and held within the opening 13, a continuous outer periphery seated in the circumferential rib 15 and optionally seated in an adjacent portion of the annular top wall 12 of the can. It has an upper portion integral with the flange 24.

As shown in the figure, in a preferred embodiment of the present invention, the circumferential rib 15 of the annular top wall 12 is bent to define a tubular cross section, and the inner edge of the annular top wall 12 The bending action of 12c is such that its free end is disposed adjacent the outer surface of the annular top wall 12.

A circumferential rib 15 associated with the flow lid made of a plastic material and having a circular tube-shaped cross section allows the flow lid 20 to fit and remove against the opening 13 of the tubular body 10. In the city, plastic deformation of one or both parts is allowed.

The flow lid 20 is preferably made of plastic material, the peripheral side 22 of which protrudes upwards from the recessed outer edge 25 of the closing wall 21.

The flow lid 20 is integrally outwardly with a tubular protrusion 27 which is provided with an intermediate opening 21a and defines a flow spout which is aligned with the intermediate opening 21a of the closing wall 21. The tubular protrusions 27 can be bent in a straight line or in whole or in part, in order to better respond to the main application of the bulk product to be dispensed, the tubular protrusions being single to the flow lid 20 to be applied to the can. It is integrated as a part and replaces the closure lid provided on the can or bowl when purchased by the user.

2 and 3, the peripheral side 22 of the closure wall 21 extends in the region of the cradle, which is defined not only above or below the plane P. By means of which it can have a shape in an outward direction to be seated against the circumferential rib 15 and in connection with the dimensional interference between the peripheral side portion 22 and the opening 13, the tubular body When fitted to the annular top wall 12 of 10, the axial retention of the flow lid 20 is ensured.

In order to prevent the flow lid 20 from harming the radially descending flow of the bulk material from the area of the peripheral side wall 11 to the intermediate opening 21a of the flow lid 20, the flow lid 20 The closed wall 21 of the recessed outer edge at its entire extension at a level not lower than the level of the inner surface 12b of the annular top wall 12 adjacent its opening 13. 25) and the peripheral side portion 22 is designed.

The flow lid 20 may have its tubular protrusion 27 which is constantly open at its free end spaced from the closure wall 21 or which is provided with an obturator 30, the closure ( 30 may have another structure which is preferably located at the free end of the tubular protrusion 27 and which is manually operated between open and closed flow lid positions.

In the structure better shown in FIG. 3, the closure has the form of a plug that can be detachably fitted and held at the free end of the tubular protrusion 27 to close the tubular protrusion 27. The closure can take the form of a plug which is connected to the tubular protrusion 27, preferably as a single part, by means of a plastic band 31 which acts as a hinge and a loop for holding the closure 30. .

While an example of carrying out the invention has been described herein, it is to be understood that modifications may be made to the shape and arrangement of the component parts without departing from the structural concepts accompanying the disclosure.

Claims (12)

A tubular body 10 having at least one peripheral side wall 11, an outer edge 12a fixed to the annular side wall 11, an inner surface 12b facing the inside of the tubular body 10, an opening An annular top wall 12 providing an inner edge 12c defining 13 and a flow lid 20 detachably fitted and held in said opening 13 to close the can. In the flow lid for the can, The annular top wall 12 has an arbitrary point on its inner surface 12b located at a certain height, the constant height being measured inside the tubular body 10 and at least radially relative to the arbitrary point. Is located outside and is equal to the height of another point of the inner surface 12b that is aligned and adjacent, The flow lid 20 comprises a closing wall 21 provided with an intermediate opening 21a and having a tubular protrusion 27 outwardly aligned with the intermediate opening 21a, the flow lid 20 of which Any point on the inner surface of the closure wall 21, measured in the canned body, is measured inside the tubular body 10 and of the inner surface 12b of the annular top wall 12. A flow cap, characterized in that it is located at least at the same height as any other point. 2. The inner edge 12c of the annular top wall 12 according to claim 1, wherein at least part of the arc of a circle having a center lying on a plane P perpendicular to the axis of the annular body 10. In order to form a circumferential rib 15 having a cross section defined by the plane P and bisected by the plane P, it is bent upwards and radially outwards, and the flow lid 20 is in the form of an arc of a circle. A circumferential cradle 23 which provides a phosphorous cross section and in which a portion in the form of a circular arc of the circumferential rib 15 is fitted with a peripheral side wall 22 provided in an outward direction. Lid. 3. The circumferential cradle of the flow lid (20) of claim 2, wherein the peripheral sidewall (22) of the flow lid (20) maintains the flow lid (20) closing the opening (13). And an upper region which is integral with the outer peripheral flange 24 seated on the circumferential rib 15 when the circumferential rib fits into 23. 4. The flow lid of claim 3, wherein the outer peripheral flange (240) is continuous and seats in an adjacent portion of the annular top wall (12) of the can upon closing the flow lid. The flow lid of claim 1, wherein the closure wall 21 of the flow lid 20 comprises a recessed outer edge 25 from which the peripheral side wall 22 protrudes upwards. . 6. The closure wall (21) of the flow lid (20) according to claim 5, at a level not lower than the level of the inner surface (12b) of the annular top wall (12) of the tubular body (10). Flow lid, characterized in that it has the recessed outer edge (25) and the peripheral side wall (22) in full extension. 2. The tubular protrusion (27) integral with the closure wall (21) of the flow lid (20) defines a flow spout that is aligned with the opening (21a) of the closure wall (21). Flow lid, characterized in that. 2. Flow lid according to claim 1, characterized in that the tubular protrusion (27) is integrated as a single part to the closing wall (21) of the flow lid (20). The flow lid of claim 1, wherein the flow lid (20) is formed from any material, such as plastic, metal, or a combination thereof. The tubular protrusion 27 of the closure wall 21 of the flow lid 20 is operated manually between the closed and open flow lid positions, according to any one of the preceding claims. Flow lids, characterized in that the sealing portion 30 is provided. 11. The closure (30) according to claim 10, wherein the closure (30) is defined by a plug connected to the tubular protrusion (27) by a plastic band (31) acting as a hinge and a loop for holding the closure (30). Flow lid, characterized in that. 12. The flow lid of claim 11 wherein the plastic band couples the side of the closure to the free end of the tubular protrusion.

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