JP5328347B2 - Thin lid for container - Google Patents

Description

  The present invention relates to a container lid having an edge region which is joined to a container body consisting of a body wall and a bottom. Containers such as those described above exist for many purposes, for example to fill foodstuffs or beverages. The lid used for closing has for this purpose a tear-off area with a gripping tongue for opening it so as not to return the extraction opening, as is known in particular for beverage cans. doing. The invention therefore also relates to a thin lid for closing a beverage can.

  The object of the present invention is to improve the lid of the container body so that when the lid is manufactured, the additional element or elements are moved relative to the lid in a direction that is in a predetermined relationship to the lid axis. Means are provided on the lid to allow the element to be attached to the lid. The additional elements themselves are not the subject of the present invention. By way of example only, an element is given to ensure that the opened lid opening is reclosed.

  The problem has been solved by claim 1. From manufacture, the lid of the present invention has at least one or more guide elements in a substantially flat area (central face area, panel or lid face) surrounded by an edge area which serves to join the container body. doing. This guide element is a pin-like or columnar guide element, and is oriented substantially parallel to the axis of the lid extending substantially perpendicular to the lid surface (claim 2).

  With the guide element-as mentioned earlier-a suitable device as a tight closing element can be reliably guided relative to the lid surface and in the direction of the axis (lid axis) Item 28).

  To that extent, the guide element is configured as a protruding element having a height and a configuration that is suitable for guidance and that allows a stroke movement in the height direction or movement away from the planar area. The guide element is not a rivet or protrusion that is pre-extruded from the lid sheet and the SOT tongue is permanently and possibly rotatably mounted. The mounting rivet has no guiding properties and does not have such a geometric configuration.

  In the case of a lid with an opening limited by an opening edge, at least one guide element is arranged outside the opening (claim 2).

  Depending on the intended use, the guide element can extend from the upper surface of the lid and / or from the lower surface of the lid, preferably into the interior of the container body.

  Further advantageous configurations of the lid according to the invention are described in the dependent claims.

  The edge region (or edge) surrounds the central face region. This edge region is suitable for the lid being fixed to the container body by folding connection. The container body can be integrally formed. That is, it can have a bottom directly attached to the barrel wall, often referred to as a can barrel, without a fold. However, the can body itself is not subject to the lid of the independent claims (Claims 1, 23 and 28). A tight and durable bond is a folding seam that occurs when the edge region of the lid is flanged or folded to the corresponding can barrel ridge, i.e. the upper end of the can barrel as the can barrel edge. Both edges are harmonized with each other so that a tight and lasting connection of the lid for the folding seam to close the container body is achieved.

  The optional closing and opening functions can be carried out with the reopening and closing of the additional elements being controlled and guided through guide elements arranged corresponding to the lid sheets.

  With regard to the position of the guide element, it should be noted that the guide element cannot be located in an open opening, and that the guide element is provided outside this relatively large opening. For this purpose, there is an intermediate area between the edge area, the edge area as a folding edge as described above, and the outer edge of the open opening, and this intermediate area has at least one pin-like or A columnar guide element is provided. The guide element projects to one side or the other side, preferably to the inside of the container body and thus to the edge region side where the body edge and lid can be joined when the lid is placed on the body edge. Based on the configuration of the edge region, the edge region is usually a path-like curved region. The shape given to the curved area allows the expert to recognize which side of the lid is directed toward the container and which side is directed outward.

  Advantageously, the guide element has a thickness that does not vary substantially. This thickness extends over the length of the guide element (claim 3). The advantageous height is above 5 mm. Over this height, the cross-section of the at least one guide element can be the same.

  Arranging at least one guide element close to the opening edge means that the guide element is adjacent to the opening (claim 5). As a result, the guide element is located significantly closer to the opening edge than to the coupling edge region. In other words, the guide element is shifted significantly inward from the outside in the intermediate region. The guide element is at the edge of the open opening (claim 21).

  A particularly precise parallel guidance is achieved when many guiding elements, for example two opposing guiding elements, extend to the same side (claims 6, 28). In this case, the guided element for reliable reclosing does not tilt, its position remains approximately parallel, and is guided in a direction perpendicular to the plane of the central surface area by the separating and approaching movements. Is done.

  A light inclination of the guide element is not excluded (claim 7). This inclination is oriented close to 90 ° and is set to be 75 ° above and 90 ° below. 90 ° is an orientation parallel to an axis perpendicular to the central region (Claim 2). The construction of the at least one guide element is made of thin sheet or plastic (claims 8, 9 and 10).

The lid can be produced together with the guide element (claim 11). The production together as a unit can advantageously be performed by injection molding techniques. The die-casting technique is an area of pressure molding in which the guide elements are integrally molded (Claim 23) or can be integrally molded (Claim 12).

To obtain retention on the lid surface, a continuous plastic layer is used. The plastic layer holds one or more guide elements or is constructed integrally with the guide elements. Coupling the plastic layer with the lid surface (center area as a panel) provides retention of the guide element against the metal lid area. This can be done by a circulating strip at the edge of the opening (claim 13). In this case, the holding part is configured as a slip on one side or both sides, and can form a U-shaped part (claims 23 and 24). The attachment of the shaped layer (claim 25) provides a reliable positioning and orientation of the guide element. In this case, the layer together with the guide element cannot be separated from the lid without being destroyed. The plastic layer produced by injection molding or pressure deformation is formed integrally with the guide element (claim 26).

  The opening is relatively large (claim 27). Therefore, the gripping of the edge from the inside in the circumferential direction is performed with a relatively large radius when the hole is circular (claim 27).

  An integral attachment can also be rewritten as a material connection.

  When multiple concepts such as bars, pins or pillars are used for the guide element, it is intended to express that the guide element is suitable for allowing guided movement in the height direction. This not only represents the state of use, but also the technical function and thus the function of the guide element configured as described above and the holding element which does not allow the movement with respect to the lid thin plate, allowing this movement in the height direction. (Claims 28 and 29).

  On the other hand, the publicly known technique does not show a clue of the claimed invention. DE-U 20219794 (Blechwarenfabrik Limburg) describes a stackable container having an edge region 5 for a tight and continuous connection to a container body consisting of a fuselage 2 and a bottom 4 (named from the publication). Is disclosed. In this case, a substantially flat central area (in this case 3) is provided, in which an opening limited by the opening edge is provided for filling or removing the filling ( The opening is denoted here by reference numeral 17). In the region between the edge and the opening, at least one element is provided on which the grip (reference numeral 18 and FIG. 3) is held on the lid surface. This grip element is shown there only in FIG. 3 and is not described in detail. In any case, the handgrip 18 is briefly described (last paragraph on page 10) and the handgrip is mounted at a large distance from the opening in the lid surface (top bottom). An important concept in this document is to simplify and improve wall lettering, which limits the cross-sectional change to the short upper region and the short lower region, and the remaining cross section of the container. (8 pages, 1st paragraph). Further, the molding on the lid surface is described in DE-U1934945. This is disclosed in the plan view of FIG. 2 and the cross-sectional view of FIG. It is configured as a raised portion that is curved or extends in an arc shape, and extends substantially arc-shaped and stepped at the corner. The meaning and purpose of this ridge is to reinforce the lid. Similar reinforcement is found in CH-C494165. In another place, outside the lid surface, changes in the circulating buffer ridges are disclosed, whose width and position are changed according to EP-A 1361164 or corresponding WO-A 03/081167. Further, unlike buffer bumps, US Pat. No. 2,822,952, column 1, lines 53 to 70, is intended for improved stackability of cans. For this purpose, a corrugated form of the cover surface is used (see FIG. 4). A structure which is comparable but extends in a triangle when viewed in cross section is known from US Pat. No. 3,070,257 for stacking containers or improving stackability. From GB-A 518778, it has been known for 30 years that an opening 4 is provided in order to improve the take-out property, a passage is formed around the recess in the lid surface, and the passage is connected to the opening (page 1, (Left column, middle row). There, a general operation knob or handgrip is designated by 8 and is similarly arranged on the lid thin plate (right column on page 2, third row).

  Advantageous configurations of the lid and the corresponding manufacturing method are described in the description of the embodiments.

  Hereinafter, embodiments of the present invention will be described in detail with reference to schematic diagrams.

  FIG. 1 shows a typical beverage container 4 (cylinder or body) which is deep drawn or drawn from a thin plate, for example. The container body 4 has a cylindrical body wall 5 having a longitudinal axis 9 and a bottom 6 integrally joined to the body wall 5. The container body 4 has a tight and durable seam constructed as a fold 2a, with a lid constructed or manufactured according to many embodiments of the present invention extending over the body edge and the lid edge 2. Are bound by. A buffer ridge 2b (anti-peaking bead) is located between the folded portion 2a and the panel 3 as a surface area.

  The lid 1 has a lid surface (as a panel or central region 3) which is substantially flat and is connected to the lid edge 2 via a buffer ridge 2b. The lid panel has three guide elements 7 ', 7 "and 8 in the illustrated embodiment. Both guide elements 7', 7" extend upward in parallel, whereas the guide element 8 It extends down from panel 3 (or into the container). All guide elements are arranged parallel to each other and parallel to the axis 9 of the lid 1. The guide element is rod-shaped or pin-shaped. The guide element extends over a length between 5 mm and 15 mm.

  It is also conceivable that one or two of the guide elements, for example both pins 7 ', 7 ", are also directed inward.

  In the embodiment of FIGS. 1 to 3, the cross section of the guide element is substantially circular. As shown by reference numerals 31, 32 and 33 in FIG. The shape of the cross-section relates to the purpose of use, i.e. the device to be guided by the guide element. This device itself is not the subject of the present invention.

  The cross-section does not change over the guiding length of both guide elements 7 ', 7 "or 7' and 8. The axis of each guide element is 75 ° to the plane of the lid surface, preferably 80 ° and 90 °. Has an angle α (alpha) between 0 ° and therefore extends approximately parallel to the axis 9 of the lid at the limit of angle ψ = 90 ° (pie is 90 °).

  The at least one guide element is at an angle smaller than 90 ° with respect to the plane of the lid surface, for example between 75 ° and an angle smaller than 90 °, for example as shown symbolically in FIG. It can also be oriented. Depending on this angular orientation, the guide element 8 or the guide element 7 "is oriented at an angle smaller than 90 °. This is not the case for the guide element 7 previously mentioned in the parallel orientation of the guide elements 7 'and 7". It also applies to ′. In this case, the guide element produces a longitudinal axis that no longer extends parallel to the longitudinal axis 9. The longitudinal axis 9 has heretofore been rewritten as the container axis, which is also the longitudinal axis for the lid, as shown at the center point of the lid panel 3 in FIG.

  The lid shown in FIGS. 2 and 3 is shown with a filling and / or removal opening 11 which is located off the center of the lid surface 3 and which is limited by the opening edge 10. Both outer guide elements 7 ', 7 "are arranged near the opening edge 10 and diametrically facing each other. The spacing of the guide elements 7', 7" from the opening edge 10 is preferably 0 to 5 mm. It is. Similarly, the spacing of the guide elements is between the opening 11 and the edge bend 2. The lower guide element 8 is in this case arranged in alignment with the outer guide element 7 ". The opening is relatively large. In the embodiment not shown, the guide elements 7 ', 7" are lower. Projecting into the container / inside the container, the guide element 8 projects upward and the guide elements 7 "and 7 'face each other in the diametrical direction.

  The guide element can be formed or molded in the manufacture of the lid in various ways.

  4a and 4b show a lid from a thin plate, the guide element being formed by bending the lid thin plate. For this purpose, in the illustrated embodiment, when the opening 16 defined by the opening edge 17 is formed in the lid panel 15, two sheet tongues 18 ', 18 "facing each other are left. These sheet tongues. Is connected to the opening edge 17, and the thin plate tongues 18 'and 18 "are cut from both sides at the portions indicated by reference numerals 19' and 19", leaving the bridge region 20. The tongue piece is bent by 90 ° with respect to the lid surface (bent portion 20a) and rounded into one cylindrical portion 18a.

  The guide element can also be formed directly from sheet material by deep drawing or the like.

It is also possible to use a pressing technique, for example an injection molding technique, in the process of manufacturing the lid to form the guide element. For example, the guide element can be molded over the material of the lid surface by pressure molding with a continuous plastic layer using pressure and elevated temperature using plastic material.

  An example of this pressing technique is shown in FIG. 6-in a cross-sectional view and a partial view of a metal lid panel 40-a continuous plastic layer 43 along the edge 42 of an opening 41 in the panel 40 is a lid. It is shown that it is attached by pressure molding when manufacturing. This plastic layer 43 in the illustrated embodiment at least partly surrounds the opening edge 42 (reference numeral 43a) and is integrally mounted and has at least one, preferably both guide elements 43b ', 43b ". ing.

  Further, as shown by a broken line in FIG. 6, the guide rods 43b 'and 43b "are maintained at the edge of the opening by the layer 43 as the U-shaped forming portions 43a and 43c that grip the opening edge in a U shape when viewed in cross section. It is also possible to prevent it from being detached and detached from the lid without being broken.This manufacturing method uses pressing force and plastic to form U-shaped portions 43b 'and 43b "at the opening edge 42, and thus a rod, pin or The columns 43b ', 43b "are mounted as guide elements on the lid lamella for axially guided movement. The outward facing side 43c is optionally shown in broken lines in Fig. 6. The bar / column is advantageously Extends into the inside of the can body, and correspondingly the molding or pin 7 ', 7 "or 8 of Fig. 5 is also arranged on the edge 10 (in the vicinity of this edge).

  Alternatively, the entire lid surface having the guide elements can be molded from plastic and fixedly bonded in the form described above with a ring portion made of a metal material having a lid edge by pressure molding.

  The lid can be changed easily and with high accuracy for any purpose of use without great expense. The lid is advantageous for closing the beverage can.

FIG. 3 is an axial cross-sectional view of a container closed with a lid manufactured in accordance with an example of the present invention. The top view which showed the lid | cover of FIG. 1 with the same dimension and the open opening in a panel. FIG. 3 is a cross-sectional view of FIG. 2. The top view which showed one part of the cover surface which has a filling and / or extraction opening in the state before shape | molding a guide element. FIG. 4B is a perspective view showing the lid portion of FIG. 4A after the guide element is formed. 5a, 5b, and 5c are perspective views showing examples of three guide elements having different cross-sectional shapes. The figure which cut and showed one part of another Example of the lid | cover which has a guide element.

Explanation of symbols

1 Lid 2 Lid edge 3 Lid surface (panel)
DESCRIPTION OF SYMBOLS 4 Container body 5 Body wall 6 Bottom 7 Guide element 8 Guide element 9 Longitudinal axis 10 Opening edge 11 Filling and taking-out opening 15 Lid panel 16 Opening 17 Opening edge 18 Thin plate tongue piece 20 Bridge area 40 Panel 41 Opening 42 Edge 43 Plastic layer

Claims (30)

A lid for a container having an edge region (2) for tight and continuous connection to a container body consisting of a body wall and a bottom;
Having a flat, central surface area (3) as a panel or lid surface;
An open opening (11) limited by an opening edge (10) in the central face area (3) for filling or removing the contents of the container;
At least one guide element (7 ′, 7 ″, 43b ′, 43b ″, 8) projecting from the central surface region (3) projects to one side and the other side in the central surface region (3). A lid for a container, characterized in that it is constructed. A lid for a container having an edge area (2) and a flat central face area (3),
-With an open opening (11) limited by an opening edge (10) in the central face area (3) for filling or removing the contents of the container;
-At least one pin-like or columnar guide element (7, 7 ', 7 ", 43b', 43b", 8) in the intermediate region between the connecting edge region (2) and the opening (11); A lid for a container, characterized in that it projects from the central surface area (3) to one side and the other side in parallel to an axis perpendicular to the central surface area.   The elongated guide element (7 ', 7 ", 8) or each guide element (7', 7", 8) has a cross section that does not vary over its length. Or a lid for the container according to 2.   3. Container according to claim 1 or 2, wherein at least one guide element (7 ', 7 ", 8) extends from the lid surface as a central surface area (3) and extends over a length of 5 mm or more. Lid for.   5. The container according to claim 4, wherein at least one guide element (7 ′, 7 ″, 8) emanates from the lid surface as the central surface area (3) and extends over a length of 5 mm to 15 mm. Lid for. 4. The container according to claim 1, wherein the at least one projecting guide element is arranged in the vicinity of the opening edge. 7. Lid for. Two guide elements (7 ', 7 ") extending in parallel from the same side of the central surface area (3) are provided, the guide elements (7', 7") being located in the center of the opening (11 ) ( 3. A lid for a container according to claim 1 or 2, arranged diametrically relative to each other with respect to 9).   2. The longitudinal axis of the at least one guide element (7 ′, 7 ″, 8) is inclined with respect to the plane of the central plane region (3) at an angle of less than 90 °. Lid for container.   The longitudinal axis of the at least one guide element (7 ', 7 ", 8) is inclined at an angle (α) between 75 ° and 90 ° with respect to the plane of the central plane region (3). A lid for a container according to claim 8.   The whole lid or at least the central surface area (3) is molded (43, 43b ', 43 ") as a unit together with at least one guide element (7', 7", 8) (43, 43b ', 43 "). A lid for the container according to 1 or 2. A method for manufacturing the lid according to any one of claims 1 to 10,
When manufacturing a lid, a continuous plastic layer (43, 43b ′) having one or more (downwardly projecting) guiding elements (43b ′, 43b ″) on one or both sides of the lid surface (40). A method for producing a lid, characterized in that 43a) is molded by pressure molding.   12. The method according to claim 11, wherein the layer is configured on one side or both sides in a band that circulates around the edge of the opening (11).   The method of claim 11, wherein the pressure molding is injection molding.   2. A lid for a container according to claim 1, wherein the guide element (7 ', 7 ", 8) is configured as a pin-like or column-like element as a rod-like element.   15. A lid for a container according to claim 1 or 14, wherein the guide element (7 ', 7 ", 8) is arranged parallel to an axis (9) perpendicular to the surface area (3). .   2. A lid for a container according to claim 1, wherein at least two rod-shaped guide elements (7 ', 7 ", 8) are provided.   3. A lid for a container according to claim 2, wherein the edge region (2) is constructed and provided for a tight and continuous connection to a container body (4) consisting of a body wall and a bottom.   7. Cap for container according to claim 6, wherein at least one guide element (7 ', 43b') is arranged at a distance between 0 mm and 5 mm from the opening edge (10) of the open opening (11). .   3. A lid for a container according to claim 1 or 2, wherein the lid is formed from a thin metal plate.   3. A lid for a container according to claim 1 or 2, wherein two columnar guide elements (43b ', 43b ", 7', 7") projecting downward are held on the opening edge (42).   3. A lid for a container according to claim 1 or 2, wherein at least one guide element (7 ', 7 ", 8) is directed into the interior (1) of the container body (4). A lid made of a thin metal plate of a beverage can, wherein the lid is of the type manufactured or manufacturable by the method of any one of claims 11 to 13,
Lid can lid for beverage cans, characterized in that a continuous plastic layer with two protruding guide elements is arranged near the edge of the open opening (10, 41).   At least one guide element is integrally arranged on the U-shaped body (43, 43a, 43c) as a rod, pin or column (43b ', 43b "), and the U-shaped body (43, 43a, 43c). 23. Lid according to claim 1 or 2 or 22, wherein at least partially surrounds the opening edge (42) from the inside.   The U-shaped body is a continuous layer (43) made of plastic which is permanently attached to the edge of the opening (10) so that it can be separated from the lid without breaking the layer (43) and the guide element. 24. The lid according to claim 23.   24. Lid according to claim 23, wherein the two guide elements integrally attached to the plastic layer (43) are diametrically opposed. 11. The thin plate lid according to claim 1, wherein the opening (11) is formed in a circular shape in the central surface area (3). It has an edge (2; 2a, 2b) suitable for folding and joining to the container body edge, and a flat central surface area (3), in which the container (4, 5 ) Is provided with an open opening (11) limited by an opening edge (10) for at least one of filling and removing the contents of
-At least two guide elements (7, 7 ', which allow guided movement in the height direction (9) in the intermediate region between the coupling edge region (2) and the opening (11), close to the opening; 7 ″, 43b ′, 43 ″, 8)
-A thin lid for the container body, characterized in that it projects vertically (α, phi) from the central surface area to one side and the other side of the central surface area (3) .   Guiding elements are integrally arranged on the U-shaped body (43, 43a, 43c) as rods, pins or columns (43b ', 43b "), which U-shaped body at least partially opens the opening edge (42) from the inside. 28. The lid of claim 27, wherein the lid is surrounded by   The guide element is at the edge of the opening (10) so that the U-shaped form is a continuous layer (43) of plastic, which layer (43) and the guide element can be separated from the lid without breaking. 29. Lid according to claim 28, wherein the plastic layer (43) is configured for permanent attachment. Two guide elements attached taken together plastic layer (43) are located opposite in radial direction, a lid according to claim 28.

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