EP1363836A1 - Verschlussdeckel mit doppeltem spiegel sowie seine herstellung - Google Patents
Verschlussdeckel mit doppeltem spiegel sowie seine herstellungInfo
- Publication number
- EP1363836A1 EP1363836A1 EP01919150A EP01919150A EP1363836A1 EP 1363836 A1 EP1363836 A1 EP 1363836A1 EP 01919150 A EP01919150 A EP 01919150A EP 01919150 A EP01919150 A EP 01919150A EP 1363836 A1 EP1363836 A1 EP 1363836A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lid
- mirror
- cover
- section
- edge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title description 2
- 230000009977 dual effect Effects 0.000 title 1
- 235000013361 beverage Nutrition 0.000 claims abstract description 26
- 230000002093 peripheral effect Effects 0.000 claims abstract 3
- 238000003780 insertion Methods 0.000 claims description 8
- 230000037431 insertion Effects 0.000 claims description 8
- 125000006850 spacer group Chemical group 0.000 claims description 8
- 239000000853 adhesive Substances 0.000 claims description 7
- 230000001070 adhesive effect Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 230000007704 transition Effects 0.000 claims description 6
- 230000005489 elastic deformation Effects 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 230000008093 supporting effect Effects 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 claims 1
- 238000005304 joining Methods 0.000 description 30
- 230000000694 effects Effects 0.000 description 3
- 238000007373 indentation Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012804 iterative process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/38—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
- B65D17/28—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness
- B65D17/401—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall
Definitions
- the invention relates to a closure cover according to claim 1, 20, 34 or 21, wherein the cover has two spaced-apart cover mirrors which are spaced apart from one another in the axial direction. The distance creates a space (also known as a cavity) that is able to hold a physical object, such as a prize, a prize or a toy part, that cannot be seen from the outside with the lid intact.
- a lid with such a cavity and two spaced lid mirrors is described in EP 773 891 B1 (Schmalbach-Lubeca), in particular FIGS. 2, 3 and 4 and column 2, paragraphs 9 and 10.
- This lid can be removed by detaching the upper lid part or the upper lid mirror, whereby the cavity is exposed with the profit.
- a food-grade adhesive is used, which is defined so that it
- the invention has set itself the task of not using residues, adhesive residues or other surface-influencing aids and to propose a lid construction that is suitable without the use of such adhesives to separate a lid mirror from another lid mirror, exposing the cavity.
- a clean attachment is to be made possible, which at the same time must meet the condition that a user cannot distinguish two beverage cans from the outside, namely such a can which has two lid mirrors and such a can which has only one lid mirror.
- This essentially presupposes that the outer lid mirror, once the upper (outer) lid mirror of the two lid mirrors and once the only lid mirror of the beverage can lid or can without a cavity, are essentially at the same height in order to have the same appearance.
- the invention uses a connection technique that fixes the outer cover mirror with respect to the inner cover mirror by a frictional connection (claim 1).
- the (elastic or radial) force component acts at a clamping point and creates a safe relative position of the two cover mirrors to each other.
- the clamping point can be located radially outside of the cover mirror, preferably in a cover wall, which runs from the circumferential groove (often referred to as the core groove) to the attachment edge (often designed as a folded edge) (claims 2, 3 and 5).
- the force fit engages an essentially radially outwardly projecting edge on a seat, an essentially radially directed force component creating a firm connection of the outer cover mirror (in the sense of a visible or axially upper cover mirror). No additional adhesive substance is required for the adhesion (claim 21, 23).
- the force fit is set so that it is sufficient for fixing the relative position of the two cover mirrors, but when opening via an outer handle part on the outer cover mirror, a release of the force fit is possible (claim 10, claim 22).
- Pulling or applying a lever force on a handle part on the outer cover mirror provides a tensile force component for separating the outer cover mirror from the clamping point (claim 11).
- the lid mirror in the area of the handle tab (the handle part) is also designed in the same way as the tear-open area of a conventional beverage can lid.
- the opening part can be supported downward on the physical object inserted in the cavity in order to make it easier for the outer cover mirror to flake off by releasing the clamp seat at the clamping point (claim 17).
- the radial force of an apron on the outer mirror acts essentially radially outward, so that a section of the closure cover which lies radially outside and extends axially inclined (claims 6, 19) serves as a clamping or bearing point (claims 2, 3 ).
- a radially inward pushing force can also be used, the bearing point being moved accordingly.
- the force component is obtained by resiliently deforming an apron section at the edge of the mirror (claim 4), a slight curvature of the larger outer cover mirror also supporting this force and its generation.
- the arched outer lid mirror gives an uninhibited viewer the impression of a higher pressure acting from the inside with a sealed can with a liquid under gas pressure.
- the outer lid mirror due to the realization of two axially spaced lid mirrors is not burdened with a pressure from its inwardly facing surface, it appears to be burdened to the viewer in this way.
- the actual gas pressure is intercepted by the inner cover mirror, which, however, is not visible when the outer cover mirror is mounted; instead, only the outer cover mirror is arched outward (claim 34).
- the outward curvature is done by reshaping before mounting the outer cover mirror (claim 36). If the beverage cans sealed with a double mirror closure lid are to be confused with beverage cans in which only one mirror is present, the axial height of the outer lid mirror is essentially that of the single lid mirror on a normal beverage can.
- a narrow circumferential strip is provided (claim 6), which is part of the inward-facing but outer cover wall, which extends inclinedly in the axial direction.
- the strip is delimited by an upper and a lower shoulder (claim 7), whereby it falls out of the inclined orientation of said cover wall and can be described as essentially axially extending (claims 6, 9 and 19).
- an essentially axial orientation it can be slightly conically inclined in order to improve the clamping fit, with angles of inclination between 0 ° and 6 °, preferably between 2 ° and 3 °, possibly also negative angles, being used.
- the outer wall (claim 5, 6) on the closure lid extends from the folded edge into the circumferential groove radially outside the lower lid mirror, approximately at the level of the inner lid mirror, which can either be essentially horizontal or slightly curved, like the outer lid mirror ,
- the circumferential strip is provided (claim 5, claim 24).
- the inner lid mirror also has an opening system with a handle tab (claim 12)
- the support effect when the tensile force is applied to the opening system of the outer lid ice level can be obtained even with smaller physical objects in the closed and hidden cavity.
- the axial height of the narrow strip at which the clamping point is formed is a multiple of the sheet thickness of the end portion of the apron area (claim 8), or the sheet thickness of the outer cover mirror.
- a cover provided with two mirrors according to the invention can also be described in such a way that two axially and radially offset grooves are created (claim 20).
- the lower groove is designed with its material on the bottom of the groove.
- the upper, axially upward and radially outward groove has a groove base divided from the material, which division is present at the clamping point.
- a slight offset of the inner curved section relative to the upper step in the edge region of the narrow circumferential strip can be provided, but this is hardly visible from the outside with a corresponding depth of the groove, at most can only be felt with a pointed tool, so that the double mirror -Can be confused with a conventional single mirror box.
- a tool which engages from above which has a circumferential joining rib which engages the skirt geometry on the outer edge of the cover mirror, but is at a radial distance from the inclined wall between the clamping seat and the attachment edge.
- this shape can be achieved by an outer surface on the joining rib, which runs obliquely with respect to the axis and is inclined radially outward (claim 26). It ends in such a way that when the joining rib engages, the clamp seat on the outer side is not touched or is not touched significantly, in order to achieve a force axially downward with its front geometry for inserting the apron with its clamp edge on the clamp seat.
- the angle of inclination of the outer surface is in the range below 30 °, preferably between 5 ° and 15 °.
- the front geometry of the axially oriented joining rib is designed to achieve a large pressure area at the lower area of the apron, which is achieved when the curvature of the inwardly facing surface of the joining rib lies largely against the curved area of the apron and extends far into Direction of the free edge of the apron is enough.
- a change in the surface inclination forms in front of the free edge, which can be viewed as a kink, or at least a kink-like transition into a second, radially outward-facing surface.
- the width at the lower end of the joining rib between the circumferential kink and the curved, inward-pointing section can also be made narrower, only then the area is reduced and the surface pressure increases on the lower end of the apron to be inserted by pressure.
- the relation of the extension of the kink to the free edge 11 is dimensioned in this way that the free edge is considered in the clamping state, in that it has a smaller radial dimension than before.
- An adjustment of the force with which the clamping edge acts as a radially outward-pointing end edge of the apron at the clamping point (the seat) can be achieved with a further tool (claim 30), in which a radial expansion is carried out before insertion.
- the upper cover section with its cover mirror is placed in reverse in a support part which has an annular area on which the edge area of the cover mirror rests, under the free-standing upper end of the apron section.
- An upper calibration tool part engages from above with a predetermined depth on the inner surface of the apron geometry and presses the apron plastically deforming outwards.
- An adjusting piece which can either be assigned to the calibration tool part or the support part, determines the depth of the engagement (claim 31) and thus the radial plastic deformation of the apron before it is subsequently pressed into the press fit by the joining rib through the joining rib.
- a radially plastically deformed apron geometry leads to a change in the radially acting, elastically applied clamping force component, so that it is possible to adjust the force with which the outer cover mirror snaps out or bursts out of the clamp seat when opened on the handle part.
- a suitable clamping force can be set using an iterative procedure if the setting part in the calibration tool part or support part can be changed in small (discretely graded) differential dimensions by the plastic post-deformation.
- the calibration found in this way by plastically deforming specification of the diameter of the free edge can be applied to all further lid sections with an upper mirror and apron (claim 33).
- FIG. 1 is a sectional view of a cover mirror having two cover mirrors 10, 30
- FIG. 2 illustrates two stages in the introduction of the outer cover mirror into the clamp seat radially outside the lower cover mirror.
- FIG. 2a illustrates an enlargement of the clamping seat 31 when an edge 11 of a lower section 10r of an apron section 10a is pressed in at the edge of the outer lid mirror 10 with a joining rib 50.
- FIG. 3 illustrates a beverage can 3, into which a lid with two "mirrors" (panels) is inserted and crimped, the lower cover 2 and the upper cover mirror 10 or cover section 1 being shown in the left field, in which the clamp fit has already been achieved, by engagement of the lowered upper tool.
- the right half image illustrates the upper cover mirror 10 in the not yet inserted state, with the tool part still raised, which, when lowered, brings about the clamp fit as explained in FIGS. 2a and 2.
- FIG. 4 is an enlarged illustration of the engaging tool in the upper section of FIG. 3, the insertion of the outer cover mirror 10 with apron 10a, 10b, 10r over the joining rib 50 being clear.
- FIG. 4a illustrates a lowered state from FIG.
- FIG. 5 illustrates a calibration tool with which the apron 10a, 10b, 10r is calibrated on the outer cover mirror 10 or cover section 1 in such a way that it generates the desired clamping force in the press fit described above.
- FIG. 1 shows a central axis 100 of a beverage can lid made of sheet metal.
- This lid has an edge region 36 which is suitable for being folded onto a fuselage flange (which is not shown).
- This loop-shaped edge region goes into an inclined wall section 35 circumferential groove from the two side walls 30b and 30a and a curved bottom 30r as the groove base.
- the two wall pieces 30b, 30a form with the groove base 30r the circumferential groove 2a, which is placed around a cover mirror 30, which adjoins radially inward via a curve 30k.
- a tab piece 40 with a grip ring shown here in section is provided in the middle area of the cover.
- a usual opening area made of score lines for defining a burglary piece and depressions around the tab piece are also provided, but are not recognizable in the sectional view.
- Figure 1 of the font specified at the beginning shows an example.
- a further wall section 31 is provided, which leaves the continuously extending inclination of the wall section 35 and has a substantially vertical orientation via circumferential shoulder-like indentations 31b, 31c and 31a.
- This wall section, referred to as strip 31, is shown in FIG. 2a as an enlarged detail, its height being h 31 in the straight region.
- lid mirror 30 which can also be curved slightly outwards instead of the essentially flat example shown, there is a second lid mirror 10 that bulges outwards, which is to be referred to as the outer lid mirror, with reference to a closed can, in which the lid mirror is on the outside 10 is recognizable. It also has an opening part as a grip tab with a grip ring 41 and the start of a circumferential groove by the transition of the cover mirror 10 via a curvature 10k similar to the curvature 30a and an inner groove wall 10a and a curvature section 10b and an attachment of a radially orientating groove base 10r.
- the curvature of the outer mirror 10 arises before assembly under high pressure, for example essentially 6 bar (0.6 MPa), to indicate an internal pressure in the assembled state which does not act on its underside after the internal pressure of the closed box (with a pressure-generating filling) is received by the inner lid mirror (claim 34).
- the distance between the two cover mirrors is designated h 20 in the center, the axial heights having the absolute values h 10 and h 30 , each with reference to the outer cover mirror 10 and the inner or lower cover mirror 30.
- the reference to these absolute height values is measured at the deepest base of the cover h 0 , here the groove base 30r or the lowest level H, if the cover is considered as such. If the lid is viewed in a folded state on a can - as shown in FIG. 3 - the lowest point is the stand-up ring of the can on the domed base of a beverage can.
- a surprise object such as a disc-shaped profit information 44 or another physical object 45, can be placed in the space 20 in the area of the inner grip tab, which is hidden from the outside and is located in the chamber 20. It is located in the cavity of height h 20 between the two cover mirrors 10 and 30.
- the outer cover mirror 10 is fixed above the inner cover mirror 30 via the apron 10a, 10r and the essentially axially aligned ring strip 31 as a clamp fit on the outer cover wall.
- apron 10a, 10r and the essentially axially aligned ring strip 31 as a clamp fit on the outer cover wall.
- the outer radial dimension of the free edge 11 of the radial skirt section 10r running as the groove base section projects in the unloaded state over a vertically running ring surface V1, with a difference dimension dr (for DELTA r or ⁇ r) in relation to the said surface and thus also based on the inward-facing contact surface of the annular strip, which is narrow in height h 31 , which narrow construction is composed of the sections 35, 31 b, 31 c, 31, 31 a and 30 b over the entire length of the outer wall up to the groove base 30 r.
- dr for DELTA r or ⁇ r
- An insertion with pressure generated via a tool upper part shown in FIG. 3 and FIG. 4, causes the free edge 11 to be displaced by at least the difference dimension dr, a radial force f r being applied and the skirt wall 10a being resiliently loaded, possibly the radial skirt section 10r is deformed somewhat axially downward and / or also slightly bulges the cover mirror 10, with the application of an elastically yielding force.
- This load on the skirt wall leads only to a small extent to a plastic, mainly to an elastic deformation, which ensures that the edge 11 is guided along the ring surface V1 past the curvature step 31c and is placed on the strip 31. If the tool part is moved out axially with a joining rib 50 from FIG.
- a second groove 1a is formed, which is located radially outside and axially above the first groove 2a. It is also all-round and visible from the outside, while by inserting the second cover mirror 10 with its apron, the first groove remains hidden from the viewer.
- the interior 20 that is formed is also hidden, but - as explained below - is accessible through the opening tab 41.
- the forces exerted by the free edge 11 when establishing the clamping point on the bearing seat 31 are shown in an enlarged detail in FIG. 2a.
- the first curvature 31b is weaker than the second sharper curvature 31c.
- the narrow circumferential strip 31, which serves as a bearing point or seat begins to absorb a clamping force f..., which is transmitted by the edge 11, but from a largely elastic yielding of the apron wall 10a, 10r, a slight plastic Share and also slightly caused by a slight bulging of the cover mirror 10.
- the forces f a and f r act as shown in FIG. 2a.
- the force component f remains, which establishes a secure fit as a clamped fit, which is brought about by a force fit.
- FIGS. 4 and 4a can also be used, which show how the upper tool has the upper cover mirror 10, which is also referred to as cover section 1 with its apron wall 10a, 10r , is attached to the lower or inner (functional) cover 2.
- a joining rib 50 acts as a circumferential, axially extending extension of an upper tool 54 with a radially circumferential support 54a and an axial extension 54b on the apron 10a, 10b, 10r in such a way that a tight fit at least on the groove base 10r of the apron given is.
- the joining rib 50 as an engaging part of the tool head 55 has an inward-facing surface 50b which is essentially axial and is curved in the lower region in accordance with the curvature 10b, 10r.
- annular surface 50a is dimensioned and oriented such that it does not abut the outer wall 35, but maintains a distance z from it when the upper tool part 55 is lowered and with its transition region at the kink 50 * between the two surfaces 50b and 50a is moved past the clamping seat 31, that is to say the circumferential strip-shaped wall section 31. This moving past is shown in FIG. 2.
- the joining rib 50 is not shown here, but only the axial and radial movement of the apron 10a, 10r.
- An elastic indentation to reduce the differential dimension dr to zero and to preferably low negative values with respect to the ring surface V1 is achieved by an axial pressure of the joining rib 50 when the free edge 11 is pressed radially inward by the shoulder 31c while the axial force is being applied f a acts from the rib 50 on the radial portion 10r of the apron. This is shown with the resulting force f r , wherein the upper cover section 1 has already been lowered a little in the axial direction, as shown in broken lines, which represents the state used.
- ⁇ of the seat 31 in the form of a conical configuration at an angle> 0 ° up to about 6 °, so that an axially deeper lowering a radially increasing force can arise, or at a negative angle a locking point 31c must be exceeded.
- the reference surface V1 is oriented on the shoulder 31c and runs parallel to the axis 100. It has a diameter dimension d 31 , which is illustrated in FIG. 2a.
- the specified differential quantity dr is measured against this diameter dimension, which becomes negative after step 31c has been exceeded and was previously positive.
- the axial height of the clamping seat 31, 11 is essentially at the height h 30 , based on a horizontal plane H, which is defined here by the groove base 30r of the inner circumferential groove 2a.
- the height h 31 of the ring strip 31 in the linear region is to be selected at least in accordance with the sheet thickness of the free edge 11, but the height of the narrow strip is preferably greater, up to two or three sheet thicknesses at the clamping point.
- the axial height of the clamping point corresponds approximately to the height dimension h 30 , but this height depends on the desired volume or the height h 20 of the chamber 20 at the location of the grip tabs 40, 41. Measured in the axial direction, the axial heights of the inner wall sections 30a, 10a correspond essentially to the same dimension in order to make the grooves 2a, 1a look as similar as possible. Nevertheless, a small step from the sharper curvature 31c in the transition to the clamping point cannot always be avoided, this step being barely visible from the outside when the first cover section 1 is clamped.
- the cover in the assembled (assembled) state acts like a conventional cover, which is very similar to the geometry which is defined by the wall section 35, the continuation via the apron 10r, 10a and the outer
- Cover mirror 10 is formed.
- the inner lid mirror 30 is lowered compared to a conventional beverage can, which was achieved by an extension of the wall 35, because the outer groove wall 30b and the strip 31 lying therebetween then follow it.
- the region of curvature 31b acts as an approach to a groove base which corresponds to that groove base 30r of the inner groove 2a.
- the continuation of this groove base is not continuous, however, but is caused by the seat of the edge 11 on the strip 31, which is achieved by the curved section 10r and the inner wall 10a of the apron on the upper cover mirror 10.
- This section 10r, 10a of the apron corresponds to that section 30r, 30a of the inner cover, not referred to here as an apron, but rather as the inner groove wall and groove base.
- the curve 31b is gentler than the curves 31c and 31a.
- the upper cover mirror 10 is removed from the inner cover mirror 30 and the chamber 20 is accessible for removing the object 44 or 45 stored therein.
- the upper break-open part in the cover mirror 10 can additionally open at least partially, thereby providing a supporting effect on the stored object 45 arises and the axial tensile force can be applied improved. If only one disc 44 is inserted, which is partially placed around the handle part 40, the tensile force can also be applied without the support effect, but it significantly improves the resulting bursting effect and the separation of the upper cover, which happens surprisingly.
- skirt wall 10a having, for example, a radially inwardly oriented region of curvature in order to engage the inner groove wall 30a of the groove 2a. The force is then directed radially inwards.
- Other possibilities of applying clamping forces corresponding to f ⁇ are accessible to the person skilled in the art on the basis of the preceding description.
- FIG. 4 is to be explained in more detail with regard to its upper tool part, which relates to the tool surfaces 50b and 50a of the joining rib 50, which is also shown enlarged in FIG. 2a.
- the circumferential surface 50a as an inclined conical surface ends in an upper receiving space 56 which is open at the bottom. It is dimensioned such that it can reach over a fold 37 formed in FIG. 3, as shown there in the left field.
- An outer tool part 52 and an intermediate part 53a ensure a firm fit of the tool part 54b carrying the joining rib 50 via the body section 54 on a support section of the tool head which can be seen in more detail in FIG.
- This tool head can be moved in the axial direction with a device (not shown) in order to arrive at the engagement position in the left field of FIG.
- the cover section 1 with its apron wall 10a, 10r is attached to the joining rib 50 and is thereby held by negative pressure on the joining rib so that the free edge 11 on the seat 31 when Lowering can slide past.
- the downwardly open space 56 receives the finished fold 37 on the upper edge of the beverage can 3, which does not result from a folding process of the edge of the lid 36 with one shown fuselage flare arises.
- the inclined surface 52a which is provided on the tool part 52, ensures that the tool head does not collide with a retracted portion 38 of the beverage can body 3 when it is closed and is matched to the retracted upper body portion of the beverage can.
- the surfaces 50a, 52a and the downwardly open receiving space 56 form a circumferential receiving ring on the upper tool part, for engaging in the fold area 37, the lid portion 1 being placed radially on the inside on the clamp seat 31 and the can is otherwise not touched or damaged ,
- the inner surface 50a has a distance z from the wall 35 that is easily imaginable from FIG. 4 and FIG. 2, but can also have a different shape if it is designed, at least in the lower section in the region of the free edge 11, so that it is at the press fit of the strip 31 reaches past.
- the arcuate curved surface 50b creates a contact surface that is wide relative to the radial dimension of the lower arch section 10a, 10r of the apron, for applying the insertion force f a according to FIG. 2a when lowering the upper tool part 55 according to FIG. 3.
- an additional one in the lower end area is the Surface 50a lying further bevel 50a 'or a (not shown) stronger formation of a curve at the surface kinks 50' and 50 "or 50 * is provided, as shown in Figure 2a at the lower end of the joining rib 50.
- the state shown in FIG. 3 in the left field is shown enlarged in FIG. 4a, the assembly tool with its rib 50 being in the upward stroke y. All those reference dimensions are shown, in particular the strip area 31, its diameter dimension d 31 , as well as the distance dimension z and the ring surface V1 located on the step 31c.
- the edge 11 is placed below the dimension d 31 , and the outer surface 50a of the rib 50 is at the most touching, but at best at a slight distance from the strip 31. When it is lifted, it moves further away, and the difference dimension dr is less than zero in the assembled state ,
- the assembled state is the reference point for the maximum radial extension of the front geometry 50a up to the kink 50 *. If the state that was shown in FIG.
- the kink would come to lie within the line V1, that is to say the radial dimension dr would protrude beyond the kink 50 *.
- the end of the inward-facing surface 50b and the beginning of the upward-facing surface 50a must therefore relate to the cover seat or at least its upper one Step 31c and even a little further radially inward when the strip 31 is tapered. This leads to the critical dimensioning of the rib geometry, while the definition of the clamping force is given by the differential dimension dr in the non-clamped state.
- the dimensioning of the differential dimension "dr" from FIG. 2 is coordinated such that a radially applied force f,. Does not become too great and the cover section 1 can burst out of the clamp seat by actuating the opening system 41.
- dr values between 1/10 and 2/10 mm have been found.
- the inner cover diameter d 31 at the lower end of step 31c and the beginning of the ring region 31 is 48.59 mm in this example.
- the resulting force is below 30N to 35N to enable a sensible opening.
- this force cannot be predicted exactly and is subject to an adjustment process which takes place in an iterative process and is to be described below.
- the assembly tool for inserting the upper cover mirror 10 of the outer cover section 1 with its apron wall made up of an axial section 10a and a radially oriented base or arch segment 10b, 10r has previously been mentioned.
- the joining rib 50 which acts radially on the outside of the apron wall, is designed to be axially longer than the axial length of the apron with its axial section 10a and has an inwardly facing upper inclined surface 50d that is more steeply inclined than one slightly inclined outwards extending surface 50a, which is oriented at an angle> 0 ° but ⁇ 30 °, preferably in a range between 10 ° and 15 °.
- the outwardly facing surface opens at the kink 50 * near the free edge 11 at the lower end of the joining rib 50, the kink leading into an arc segment 50b which defines the inwardly facing second surface of the joining rib 50. It is adapted to at least the radial arc segment 10a, 10r and is largely in contact with these segments at the beginning of the indentation, in particular with regard to the base segment 10r.
- the axially upper position of the tool 55 is shown in FIG. 4 and in FIG. 3 in the right field.
- the retracted, axially lowered position is shown in FIG. 3 in the left field, so that the function and mode of operation as well as the geometric structure of the upper tool can be understood as an assembly tool for the closure cover, in particular the upper section 1 of the overall cover.
- the outer surface of the joining rib 50 shown as a flat surface 50a can also have a different shape. It is only necessary to intervene past the clamp seat. A distance z of this outer surface 50a from the cover wall 35 establishes a safe reaching past, without mechanical deformation of the cover, after the cover segment 10 is only to be placed, but not other cover geometries are to be changed with the assembly tool. The distance z can be seen in FIG. 4a, an essentially constant strip distance being formed between the outer surface 50a and the sloping cover wall 35 until the start of the attachment edge 36 of the cover.
- the elements 52, 53 of the assembly tool lying radially further outward are fastened to the head part 54a of the upper section 54 of the tool with a screw as shown in FIG. 3, in order to enable the joining rib 50 with the support sections 54, 54a arranged thereon to be exchanged.
- the insertion of the clamping edge 11 on the seat 31 depends on what elastic force f,. Is required to achieve a secure fit and a release of this fit when the opening lever is actuated.
- the oversize dr contributes to this as a difference dimension according to FIG. 2.
- This dimension is determined by the geometry cut by punching out and the dimensions of the upper cover section 1, and on the other hand by a first deforming plastic deformation of the apron wall 10a in its rest position. This plastic deformation (for example, by deep drawing) can be changed with a further tool according to FIG.
- the radial dimension dr can thus be set precisely, additionally or independently of a geometric dimensioning when punching out and preforming this upper cover segment 1, in which processes Deviations are possible which can be influenced, compensated and redefined by post-forming with the calibration tool according to FIG. 5.
- An upper tool part 70 and a lower tool part 60 can be moved relative to one another in the axial direction 100.
- the upper tool part 70 is preferably axially adjustable and the lower tool 60 as a support part is immovable. It has a fuselage 69 as the lower support part and a spacer 65 which determines the axial dimension h 65 of the support part 60.
- the support part 60 has a collar 61 which points upwards and has an annular recess 64 which has an inner edge 62 and an outer ring web 63.
- the ring web 63 is shorter than the skirt wall 10a, as previously described.
- a cover segment 1 according to FIG. 2 is placed upside down (cover mirror facing downwards) into the annular recess 64, so that the curvature 10k of the cover mirror comes to lie near the inner edge 62 of the recess 64.
- the axis 100 is shown and the tool is symmetrical to this axis, so that only the left half is shown and described.
- the upper tool part 70 has a calibration head which has an inclined outer surface 71 which is matched to the radial dimension of the recess 64 such that the inner end comes to lie inside thereof and the outer end 71a of the inclined surface 71 outside. This results in an adjustment range, depending on the depth of adjustment of the upper calibration head 70, which in turn is arranged on a support element 72.
- an upper apron section with its outward curvature 10r is open at the top for engagement of the inclined surface 71, the lower end of which passes the curvature 10r, but the inclined surface passes the inner surface at a specific axial position in the course of the adjustment movement of the curved portion 10r is touched. From the point of contact, the skirt wall 10a is plastically deformed in order to bend the arch segment 10r further outwards and thus to obtain a different differential dimension dr.
- a very precise adjustment of the plastic deformation can be achieved by changing the height h 65 of the spacer 65 in small steps, that is to say, for example, by changing the insert pieces 65a in steps of 0.05 mm.
- the depth of engagement can also be achieved for the upper tool head 70 by changing the height of the spacer 65.
- the Relative displacement can also take place by moving the receiving part 60 relative to the stationary calibration head 70.
- dr The exact size of dr is set by adjusting the height h 65 of the spacer 65.
- Deformation can be increased, which is achieved by increasing the height h 65 .
- the calibration tool 70 which remains at the same engagement depth, engages deeper with its inclined surface 71 and deforms the curved section 10r and a piece of the axial apron section 10a of the same or a new cover section 1, which has not yet been used, plastically somewhat more, which leads to an increased dr.
- Placement of force on the strip 31 is placed.
- the force on opening at the opening system 41 is measured again with a pulling tool and in a corresponding manner an exact specification of the opening force can be determined, measured and adjusted by incrementally changing the height h 65 .
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
- Cookers (AREA)
- Mirrors, Picture Frames, Photograph Stands, And Related Fastening Devices (AREA)
- Details Of Rigid Or Semi-Rigid Containers (AREA)
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10196147T DE10196147D2 (de) | 2001-03-01 | 2001-03-01 | Verschlussdeckel mit doppeltem Spiegel sowie seine Herstellung |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/DE2001/000775 WO2002070358A1 (de) | 2001-03-01 | 2001-03-01 | Verschlussdeckel mit doppeltem spiegel sowie seine herstellung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1363836A1 true EP1363836A1 (de) | 2003-11-26 |
EP1363836B1 EP1363836B1 (de) | 2005-10-19 |
Family
ID=5648221
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01919150A Expired - Lifetime EP1363836B1 (de) | 2001-03-01 | 2001-03-01 | Verschlussdeckel mit doppeltem deckelspiegel sowie seine herstellung |
Country Status (7)
Country | Link |
---|---|
US (1) | US7278548B2 (de) |
EP (1) | EP1363836B1 (de) |
JP (1) | JP2004521037A (de) |
AT (1) | ATE307061T1 (de) |
BR (1) | BR0116923B1 (de) |
DE (1) | DE50107778D1 (de) |
WO (1) | WO2002070358A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102725200A (zh) * | 2009-10-23 | 2012-10-10 | 巴里·W·查宾 | 饮料罐装置 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE602006011610D1 (de) * | 2005-05-17 | 2010-02-25 | Toyo Seikan Kaisha Ltd | Quadratische dose und verfahren und vorrichtung zum doppeltwalzen derselben |
US8875936B2 (en) * | 2007-04-20 | 2014-11-04 | Rexam Beverage Can Company | Can end with negatively angled wall |
US8973780B2 (en) | 2007-08-10 | 2015-03-10 | Rexam Beverage Can Company | Can end with reinforcing bead |
US8640949B2 (en) * | 2008-03-03 | 2014-02-04 | Apple Inc. | Method for assembling and activating a multi-pack package of transaction cards |
US10577158B2 (en) * | 2010-01-29 | 2020-03-03 | Graham Packaging Company, L.P. | Pressure equalizing closure |
US8991643B2 (en) | 2011-03-29 | 2015-03-31 | Graham Packaging Company, L.P. | Closure for use in hotfill and pasteurization applications |
KR101992210B1 (ko) * | 2017-11-13 | 2019-09-30 | 주식회사 프리캔 | 손잡이가 결합된 용기 상판 제조장치 및 상판 제조방법 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2120403A (en) * | 1936-06-23 | 1938-06-14 | Lever Brothers Ltd | Can top label |
US2804201A (en) * | 1956-10-23 | 1957-08-27 | Story F Chappell | Folder |
US3067867A (en) * | 1960-04-04 | 1962-12-11 | Procter & Gamble | Premium holder |
US3262602A (en) * | 1964-06-17 | 1966-07-26 | Scott Paper Co | Plastic container and lid |
GB1577739A (en) * | 1976-04-09 | 1980-10-29 | Metal Box Co Ltd | Containers |
US4090636A (en) * | 1977-08-22 | 1978-05-23 | B.W. Norton Manufacturing Co. Inc. | Metal paint pail cover |
US5472542A (en) * | 1994-01-13 | 1995-12-05 | Kraft Jacobs Suchard R&D, Inc. | Reclosable container and a method of forming and assembling a reclosable container |
US5507406A (en) * | 1994-04-26 | 1996-04-16 | Belford Patrick, Inc. | Tamperproof/tamper evident container |
GB9415782D0 (en) | 1994-08-04 | 1994-09-28 | Continental Can Company Limite | Prize-holding container |
US6296137B1 (en) * | 1995-11-24 | 2001-10-02 | Topad As | Beverage can device |
NO305473B1 (no) * | 1995-11-24 | 1999-06-07 | Rnsen Petter Konrad Bj | Anordning ved drikkevareboks |
US6152318A (en) * | 1997-02-20 | 2000-11-28 | Walker; Jack A. | Storage container with self-retaining lid |
US5996833A (en) * | 1997-11-05 | 1999-12-07 | Sonoco Development, Inc. | Tamper evident dust cover for a drum bung |
US6295137B1 (en) * | 1998-12-11 | 2001-09-25 | Xerox Corporation | Method of color correction using multi-level halftoning |
-
2001
- 2001-03-01 DE DE50107778T patent/DE50107778D1/de not_active Expired - Fee Related
- 2001-03-01 US US10/468,913 patent/US7278548B2/en not_active Expired - Fee Related
- 2001-03-01 BR BRPI0116923-8A patent/BR0116923B1/pt not_active IP Right Cessation
- 2001-03-01 EP EP01919150A patent/EP1363836B1/de not_active Expired - Lifetime
- 2001-03-01 JP JP2002569693A patent/JP2004521037A/ja active Pending
- 2001-03-01 WO PCT/DE2001/000775 patent/WO2002070358A1/de active IP Right Grant
- 2001-03-01 AT AT01919150T patent/ATE307061T1/de not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO02070358A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102725200A (zh) * | 2009-10-23 | 2012-10-10 | 巴里·W·查宾 | 饮料罐装置 |
Also Published As
Publication number | Publication date |
---|---|
BR0116923A (pt) | 2004-04-27 |
WO2002070358A1 (de) | 2002-09-12 |
BR0116923B1 (pt) | 2011-08-09 |
US7278548B2 (en) | 2007-10-09 |
US20040129703A1 (en) | 2004-07-08 |
ATE307061T1 (de) | 2005-11-15 |
JP2004521037A (ja) | 2004-07-15 |
EP1363836B1 (de) | 2005-10-19 |
DE50107778D1 (de) | 2005-11-24 |
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