MXPA96000074A - Provision for a can container with upper separate opening - Google Patents

Abstract

The present invention relates to a combination of a lid, wherein the can has a central discharge opening that can be closed by the lid, having a peripheral edge to settle on a can closing seat and from which annular wall it projects downwards, the can has an upper wall where the opening separated from an outer peripheral edge is defined, and is provided with the closing seat from which a tubular wall with a free end projects downwards, characterized in that the end free of the tubular wall is curved towards the inside of the opening and upwards, until it reaches a portion of said tubular wall, defining a lower edge of the tubular wall in the form of a continuous circular rib, the lid being provided with a circular hole continuous peripheral which fits within the peripheral circular rib when the peripheral edge is seated inside the closing seat e, and when the annular wall is in contact with the tubular wall

Description

DISPOSAL FOR A CAN CONTAINER WITH UPPER DISCHARGE OPENING FIELD OF THE INVENTION The present invention relates to cylindrical or parallelepiped-shaped can containers, provided with a discharge opening, which occupies a substantial portion of the area of the upper wall of the can container. More X Typically, the present invention relates to an improvement in the top wall of said can containers.

BACKGROUND OF THE INVENTION Cylindrical or parallelepiped-shaped tin containers, which are used to store bulky products, have an opening in their upper wall that occupies a large space. The closed container of said can containers is achieved by applying a lid on said opening, in order to avoid the loss of the contents stored inside the can container, regardless of the position of said can containers. Said lids have a peripheral reinforced edge, in order to prevent said lids from being damaged during the opening of the can container, which may prevent opening to opening. This reinforcement is calculated to give greater resistance to the lid. In a known construction, the peripheral edge of the lid is seated against a corresponding closing seat, which is defined at the edge of the central opening and which is projected onto an upper wall portion of said can container, said portion being positioned in a lower plane relative to the plane of the reinforced peripheral edge of the can container, thereby allowing the peripheral edge to act as a support point for the application of a lever used to remove said lid during the opening of the can container . ^ In the application for Brazilian utility model MU 7301199, of the same applicant, a new construction for the top wall of the can containers provided with discharge openings is described, in which the lid is seated against a corresponding closing seat, defined in an annular stirrup provided on the peripheral edge inner of the upper wall, said stirrup being placed in the lower portion of a middle annular region of the upper wall that is "radially located between said stirrup and the outer edge of the upper wall. In these constructions, the inner edge of the upper wall has, in the region where the closing seat is defined, a portion of tubular wall, in which it is projected downwards towards the inside of the can container, and the end er. a free end in contact with the contents of the can container and with a portion of the lid wall, projecting radially beyond said end, in order to cause closure of the lid towards the can container under the lid it sits on the closing seat of the discharge opening of the can container A disadvantage of the tubular wall constructions refers to the possibility that the stored product is contaminated by the contact thereof with the radial inner face of the free end. of the tubular wall, which is not varnished as the inside of the can container, thus allowing oxidation and tampering of the aforementioned product to occur.This oxidation contact, in the case of liquid products, results from of a film of this liquid that remains between the adjacent contact surface of the tubular wall of the central opening and the annular wall of the lid. from the absence of liquid access restriction to the opening region of the can container. Another disadvantage of these constructions refers to the central opening closure of the fragile lid, in which the closure is obtained only by fitting an annular portion of the tubular lid wall, which has a diameter slightly larger than that of the free end. of the central opening and which acts against the latter when the lid is removed. To allow closing and opening movements of the can containersaid annular portion is elastically deformed from a closed position to a retracted position, said deformation being easily obtained due to the fragile closure, thus preventing the unintentional opening of the can container.An additional disadvantage of these constions is referred to in FIG. to the possibility that the user is injured when handling the can container, due to the fact that the tubular wall of the central opening ends in a sharp edge.

DESCRIPTION OF THE INVENTION Therefore, it is an object of the present invention to provide an upper wall for cylindrical or parallelepiped-shaped can containers, which are provided with an upper discharge opening occupying a large area of said upper wall and which is configured for avoid contamination of the contents of the can container by contacting said contents with the non-varnished portions of the can container. Another object of the present invention is to provide an upper wall for the can container of the aforementioned type, which allows a better closing of the lid on the can container, thereby making it difficult to accidentally open the can container. A further object of the present invention is to provide an upper wall for the can container of the above-mentioned type, which prevents the user from being injured when handling the can container. These and other objects of the present invention are achieved by an arrangement for a Jata container with a large upper discharge opening, said can containers having an upper wall where an opening provided with a closing seat is defined, from which a tubular wall having a free end projects downward; a cover having a peripheral edge that sits on the closing seat and from which an annular wall is downwards, the free end the tubular wall being curved towards the inside of the central opening and upwards , until it reaches a position adjacent to the tubular wall, defining a lower edge of tubular wall in the shape of a continuous rib.

BRIEF DESCRIPTION OF THE DRAWINGS The invention will be described below, with reference to the accompanying drawings, in which: Figure 1 is a partial cross-sectional view of the upper wall of a can container with a large upper discharge opening, in accordance with the technique previous; Figure 2 is a view similar to that of Figure 1, showing a portion of the upper wall of the can container, in accordance with the present invention; and Figure 3 is a view similar to that of the row 2, showing a portion of the top wall of the can container, in accordance with another embodiment of the present invention.

BEST WAY TO CARRY OUT THE INVENTION According to FIGS. 1, 2 and 3, a can container 10 is provided, in its upper discharge wall .11, with a discharge opening 12, which is substantially circular, occupying a substantial portion of the container. total area of the respective upper wall 11 and which is closed by a lid 20, said closure being obtained by seating a peripheral edge 21 of said lid 20 on a closing seat 12a, defined in the central opening 12 of the upper wall 11 Although an aperture with a substantially circular shape is illustrated, the discharge aperture may have any polygonal shape or shape. According to the illustration in FIG. 1, the central opening 12 of the upper wall 11 is provided, in the closing seat J a with a tubular wall 17, which projects downwards towards the inside of the can container 10, in a substantially rectilinear manner and orthogonal to the surface of the upper wall 11, said tubular wall 17 defining the outline of the central opening 12 for the introduction of the lid 20 and acting on the latter to maintain its closing condition after which the iron pe "*" edge 21 of said lid 20 has been seated on the closure seat J a on the central opening 32. The tubular wall 17 has a free end l, forming an acute peripheral edge which retains the lid 20. in the closing condition. In this construction, the central opening 12 is separated from the peripheral edge 13 by a flat upper wall portion, which is folded in relation to the outer peripheral edge 13 and the closing seat 12a. Another construction for the upper wall 11 is illustrated in figure 3 and is described in the Brazilian utility model application MU 7301199 of the same applicant. The cover 20 of the prior art has a round peripheral edge 21, from which an annular wall 22 is projected, which is elastic and substantially vertical and which, when the lid 20 is applied to the can container 10, is kept in contact by radial pressure with the axial wall 17 of the central opening J2. In order to close the lid 20 towards the can container 10, said lid 10 is provided, in a lower portion of its annular wall 22, with a diametrical widening, defining a stirrup 23 external to said wall and separated from the peripheral edge. 21 of the lid 20, so that, in the closing condition of the can container 10, said stirrup 23 acts against the free end 2ft of the tubular wall 17 of the central opening 12, thereby making it difficult to inadvertently remove the lid 20 in relation to the can 10, although presenting all the disadvantages ar.-V 'ba enc ionadas. In accordance with the present invention illustrated in Figures 2 and 3, the tubular wall of the central opening J2 is provided with a lower portion, which is curved inwardly of the central opening 12 and then curved upwards, so that the free end l of the tubular wall 17 reaches a portion of the tubular wall 17, which defines a lower edge of the tubular wall in the form of a continuous circumferential groove 19, preferably tubular and spaced from the closing seat J a . According to a preferred illustrated form, the flexing of the lower portion of the tubular wall 17 defines a retaining body which prevents the voluntary removal of the lid 20, after said lid has been seated on the central opening 12. In another solution, not illustrated, the peripheral rib 19 is tangent to a plane that contains the "Tito of closure i 2a and orthogonal to the upper wall 11, without requiring any modification in the shape of the lid 20. According to the construction illustrated preferred of the peripheral rib 19, the lid 20 of the present invention comprises, in its annular wall portion 22 away from the peripheral edge 21, a peripheral recess 2U, preferably annular and continuous, of a substantially circular shape and which engages with the shape of the peripheral edge 19, which fits within the recess when the cap 20 is placed over the central opening 12 of the canister af ip "of closing the latter. The provision of the peripheral rib 19 in the central opening J2, as well as the diametral recess in the lid 20 allows to obtain a closure with a fixing effect that prevents the unintentional opening of the can 10 container. In addition, the construction of the rib prevents that the user injures himself when handling the can container and avoids the contamination of the product due to the contact of said product with the unvarnished areas of the can container 10, since said tab provides an obstacle for the formation of film of liquid between the adjacent external contact surfaces of the tubular wall 17 of the central opening 12 and the annular wall 22 of the lid 20. In order to obtain the closure of the can container 10, in accordance with the preferred illustrated construction, the introduction of the lid 20 into the central opening 12 of the tin can 10 causes an elastic deformation in at least one of the parts defined by the tubular wall 17 of the aperture. a central 12 and the annular wall 22 of the lid 20, due to the presence, in the central opening 12, of the peripheral rib 19, the deformation caused during the closure of the can container obtaining, until the peripheral recess 24 of the lid 20 fits inside the peripheral rib 19. In this condition, the peripheral edge 21. of the lid 20 sits on the closing seat 12a of the central opening 12, this situation being interrupted only by the voluntary introduction of a element that, when placed at X and said peripheral edge 21 and the closing seat 12a forces said parts to separate mutually, initiating an elastic deformation thereof, in order to separate the peripheral edge 19 from the peripheral recess 24.

Claims (4)

NOVELTY OF THE INVENTION CLAIMS

1. - The provision for a can container with upper discharge opening, said can containers having an upper wall (11), where an opening (12) provided with a closing seat (J2a) is defined, from which a wall tubular (17) with a free end (lß) projects towards ßv garlic; a cover (20) having a peripheral edge (21) for seating on the closing seat (J2a) and from which an annular wall (22) projects downward, characterized in that the free end (lß) of the tubular wall (17) is curved towards the inside of the central opening (12) and upwards, until it reaches a position adjacent to the tubular wall (17), defining a lower edge of tubular wall in the shape of a continuous rib (19) .

2. The arrangement according to claim 1, further characterized in that the peripheral rib (19) is projected into the central opening (12).

3. The arrangement, according to claim 2, characterized in that the peripheral rib (19) is tubular.

4. The arrangement according to claim 2, further characterized in that the lid (20) is provided with a continuous peripheral recess (24), which adjusts d? < "Xro of the peripheral rib (19) when the lid (20) closes the can container (10). DISPOSAL FOR A CAN CONTAINER WITH UPPER DISCHARGE OPENING SUMMARY OF THE INVENTION The arrangement for a can container with upper discharge opening, said can containers having an upper wall (11), provided with an opening (12) and a closing seat (2a) from which a wall - tubular (17) with a%: free rowing (Iß) is projected downward; a cover (20) having a peripheral edge (21) for seating on the closure seat (12a), the free end (Iß) of the tubular wall (17) curving inwardly of the central opening (12) and toward up, until it reaches a position adjacent to the tubular wall (17), defining a lower edge of tubular wall in the shape of a continuous rib (19). RM / crm *