EP1363836B1 - Couvercle de fermeture a surface double et procede de fabrication dudit couvercle - Google Patents

Couvercle de fermeture a surface double et procede de fabrication dudit couvercle Download PDF

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Publication number
EP1363836B1
EP1363836B1 EP01919150A EP01919150A EP1363836B1 EP 1363836 B1 EP1363836 B1 EP 1363836B1 EP 01919150 A EP01919150 A EP 01919150A EP 01919150 A EP01919150 A EP 01919150A EP 1363836 B1 EP1363836 B1 EP 1363836B1
Authority
EP
European Patent Office
Prior art keywords
lid
section
edge
panel
lid panel
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.)
Expired - Lifetime
Application number
EP01919150A
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German (de)
English (en)
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EP1363836A1 (fr
Inventor
Lutz Strube
Dieter Heinecke
Hajo Rieck
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ardagh Metal Beverage Germany GmbH
Original Assignee
Ball Packaging Europe GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ball Packaging Europe GmbH filed Critical Ball Packaging Europe GmbH
Priority to DE10196147T priority Critical patent/DE10196147D2/de
Publication of EP1363836A1 publication Critical patent/EP1363836A1/fr
Application granted granted Critical
Publication of EP1363836B1 publication Critical patent/EP1363836B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 lid, wherein the lid two spaced apart cover mirror (panel), which in the axial direction Seen a distance from each other.
  • the distance becomes one Interspace (also referred to as cavity) formed, which is able to to pick up a physical object such as a prize, a profit or a toy part, that can not be seen from the outside with intact lid.
  • a lid with such a cavity and two spaced lid mirrors is described in EP-B 773 891 (Schmalbach-Lubeca), there in particular Figures 2, 3 and 4 and column 2, paragraphs 9 and 10.
  • This cover can be replaced by detachment of the upper Lid part or the upper lid mirror are opened, the cavity is exposed to the gain.
  • a food-grade adhesive is necessarily used there, which is defined so as to enable the upper lid mirror to be separated from the lower lid mirror, cf. there column 3, first paragraph. A separation of the upper lid part then leads to a residue of the adhesive remains at the splice.
  • WO-A 97/19001 (Björnsen) relates to a device for a beverage can and has - where relevant here - two separate and specifically described embodiments of the local figures 1 and 5 or 16 to 18.
  • the local figures 16 to 18 is a Closure lid described how to rewrite with the feature group (a) of claim 1.
  • a circumferential groove is formed, and in this groove, a circumferential sealing lip (there 32) is used to achieve the axial distance of the upper "cover mirror” from the lower cover mirror, the upper cover mirror (there 24) has a significant curvature and with a circumferential, at least partially radially aligned further sealing lip (there 31) engages the circumferentially extending inner wall of the local core wall between circumferential groove and mounting flange.
  • a negative pressure is created, which holds the upper plate at a defined distance from the lower plate, additionally supported by the axially directed sealing lip 32.
  • the partially radially directed second sealing lip 31 seals against the inwardly facing Wall (there 28) off.
  • the other embodiment is described in the cited document as being has no circumferential groove, but with an arrangement according to the local figure. 4 provided in a recessed portion of the beverage can lid.
  • These Arrangement is disk-shaped and has two folded flaps (there 8, 9), which intervene between lid and opening tool on the lid after they have been inserted.
  • the outer "lid mirror” (corresponding to the local Cover for the creation of hygiene and enabling the automatic Attachment) keeps its distance through the horizontally lying flaps (there 8, 9) in inserted state, as it describes the local figure 5.
  • the outer edge may be punctiform in at least some places with the after inside facing wall (there 6) in contact, so that at these points radially oriented force components may arise or could arise or, where appropriate would arise, cf. there column 4, lines 25 to 29 and column 5, lines 5 to 10.
  • the invention has set itself the task not to use residues, adhesive residues or other surface-influencing aids and to propose a cover construction which is suitable without the use of such adhesives to separate a lid mirror of another lid mirror, exposing the cavity.
  • a clean attachment is to be made possible, which must simultaneously meet the condition that a user can not distinguish two beverage cans from the outside, namely such a can having two lid mirrors, and such a can having only a lid mirror.
  • the invention uses a connection technique that covers the outer lid mirror relative to the inner lid mirror sets by a frictional connection (claim 1).
  • the (elastic or radial) force component acts at a nip and creates a secure relative position of the two lid mirror each other.
  • the nip can lie radially outside the lid mirror, preferably in a top wall, of the circumferential groove (often referred to as core groove) to the mounting edge (often as Folded edge configured) runs (claim 2, 3 and 5).
  • the frictional connection is adjusted so that it is for fixing the relative position of the Both lid is sufficient, but when opening an outer handle on the outer lid mirror releasing the frictional connection is possible (claim 10, Claim 22).
  • the pulling or applying a leverage on a handle on the outside Cover mirror provides a tensile component, for separating the outer Lid of the nip (claim 11).
  • the lid mirror in Area of the grip tab (the handle part) also designed as the tear area a usual beverage can lid.
  • the opening side downwards on the in the cavity supported physical object to support the chipping of the outer Lid level to facilitate by loosening the clamping seat at the terminal point (Claim 17).
  • the radial force of an apron acts on the outer mirror in substantially radially outwardly, so that a portion of the cap, the radial lies outside and extends axially inclined (claim 6, 19), as a clamping or Depository serves (claim 2, 3). Also, a radially inwardly pressing force can be used, the bearing is moved accordingly.
  • the force component is formed by elastically deforming a skirt portion obtained on the edge of the mirror (claim 4), wherein also a slight buckling of the larger-area outer lid mirror supports this force and their emergence.
  • the bulging outer lid mirror awakens an unbiased viewer Impression of a higher internal pressure acting on a sealed can with a liquid under gas pressure.
  • the outer lid mirror due to the realization of two axially spaced lid mirrors not with a pressure from its inwardly facing surface, he appears burdened the viewer in such a way.
  • the actual gas pressure is from the intercepted inner lid mirror, but with mounted outer lid mirror is not visible, instead, only the outer lid mirror is curved outward visible, noticeable.
  • the outward curvature is done by forming before mounting the outer lid mirror. Shall those with a double mirror cap sealed drink cans be confused with such beverage cans, at where only one mirror is present, so is the axial height of the outer Lid mirror substantially that of the single lid mirror on a normal soda can.
  • the strip is bounded by an upper and a lower shoulder (claim 7), he fäüt from the inclination orientation of said top wall and as may be referred to substantially axially extending (claims 6, 9 and 19). at In a substantially axial orientation, it may be slightly conically inclined to the To improve clamping fit, with inclination angle between 0 ° and 6 ° preferred between 2 ° and 3 °, possibly also negative angles, find application.
  • the outer wall (claim 5, 6) on the closure cover extends from the seaming edge to in the circumferential groove radially outside of the lower lid mirror, where about Height of the inner lid, which is either substantially horizontal or light arched, as the outer lid mirror can run, the circumferential strip is provided (claim 5, claim 20).
  • the inner lid mirror has an opening system with a grip tab (Claim 12), the supporting effect when applying the tensile force on the Opening system of the outer lid mirror even with smaller physical objects obtained in the closed and hidden cavity.
  • the axial height of the narrow strip on which the nip is formed is a Multiple of the plate thickness of the end portion of the apron area (claim 8), or the sheet thickness of the outer lid mirror.
  • a lid provided with two mirrors according to the invention may also be so be described that two axially and radially offset grooves arise (Claim 21).
  • the lower groove is continuous with its material on the groove base designed.
  • the upper, axially upwardly and radially outwardly displaced groove has a from Material ago divided groove base on which division is present at the terminal point.
  • One slight misalignment of the inner curved section relative to the upper step in the Edge region of the narrow circumferential strip (claim 13) can be provided be, but hardly visible from the outside at a corresponding depth of the groove, if necessary, with a sharp tool is palpable, so that the double-mirror box and a conventional single mirror can be confused.
  • One of the two grooves is closed when the double-mirror cover is closed invisible. Both grooves are oriented in the same direction, especially at closed beverage can hull oriented towards the interior of the fuselage (Claim 18).
  • a method is also proposed and claimed to the outer Cover mirror with its clamping seat to bring into position (claim 24). This will be provided a tool engaging from above, which has a circumferential joining rib owns, based on the apron geometry on the outer edge of the lid mirror engages, but a distance from the inclined wall between radially outward having the clamping seat and the mounting edge.
  • an outer surface on the joining rib be inclined relative to the axis and inclined radially outward. It ends so that when engaging the joining rib of the clamping fit on the outer side is not or not materially touched to a force with its frontal geometry after axially down to insert the skirt with its clamping edge on the clamping seat to reach.
  • 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 be a large pressure area at the bottom of the skirt to achieve what is then achieved when the curvature of the inwardly facing surface of the joining rib largely to the curved portion of the apron applies and far in the direction the free edge of the apron is enough.
  • In front of the free edge there is a change of the Surface inclination from, what as a kink, but at least kink-like transition in a second, radially outwardly facing surface can be considered.
  • the width at the bottom of the joining rib between the circumferential kink and the curved, inwardly facing portion also formed narrower Only then reduces the area and it increases the surface pressure on the lower end of the apron to be inserted by pressure.
  • a setting of the force with which the clamping edge as radially outwardly facing End edge of the skirt at the nip (the seat) attacks, can with another Tool can be achieved in which a radial expansion before insertion is made.
  • the upper lid section with its lid mirror vice versa inserted into a support member having a ring area on which the Rim area of the lid mirror rests, under freestanding upper end of the The skirt portion.
  • An upper calibration tool part engages from above with a predetermined setting depth on the inner surface of the apron geometry and presses the apron thereby plastically deforming to the outside.
  • An adjusting piece either the Kalibrierwerkmaschineteil or the support member can be assigned determines the depth of engagement and thus the radial plastic deformation of the apron before subsequently using the aforementioned Tool is pressed by the joining rib in the clamping seat.
  • a suitable clamping force can be set, if the adjustment part in the calibration tool part or support part in low (discreet stepped) differential dimensions by the plastic deformation is changeable.
  • the so found calibration by plastically deforming specification of the diameter The free edge can be applied to all other lid sections with upper mirror and Apron to be applied.
  • FIG. 1 shows a central axis 100 of a beverage can lid made of sheet metal.
  • This lid has an edge portion 36 which is adapted to be snapped onto a hull flange (not shown).
  • This loop-shaped edge region merges via an inclined wall section 35 into a circumferential groove from the two side walls 30b and 30a and a curved bottom 30r as groove base.
  • the two wall pieces 30b, 30a form with the groove bottom 30r the circumferential groove 2a, which is placed around a cover mirror 30, which connects via a bend 30k radially inward.
  • a tab piece 40 is provided with a handle ring shown here in section.
  • a common opening area of score lines for defining a break-in piece and depressions around the tongue piece are also provided, but not visible in the sectional view.
  • FIG. 1 of the document given at the beginning shows an example.
  • a further wall portion 31 is provided which leaves the continuous slope of the wall portion 35 and has a substantially vertical orientation via circumferential shoulder-like recesses 31b, 31c and 31a.
  • This designated as strip 31 wall portion is shown in Figure 2a as a detail enlargement, with its height in the straight region h 31 .
  • a second arched outward Cover mirror 10 is provided, which should be referred to as outer lid mirror, with respect to a sealed box, in the outside of the lid mirror 10th is recognizable. He also has an opening part as a grip tab with a handle ring 41 and the beginning of a circumferential groove by transition of the lid mirror 10 via a the curvature 30a similar curvature 10k and an inner groove wall 10a and over a curvature portion 10b and a shoulder of a radially aligning Groove base 10r.
  • the curvature of the outer mirror 10 is formed prior to assembly under high pressure, for example, substantially 6 bar (0.6 MPa) to an internal pressure in the mounted State that does not affect its bottom after the Internal pressure of the closed box (with a pressure-forming filling) from the inside Cover mirror is received (claim 34).
  • the distance between the two cover mirrors is designated in the center by h 20 , wherein the axial heights as absolute values have the amounts h 10 and h 30 , in each case with respect to the outer cover mirror 10 and the inner or lower cover mirror 30.
  • the reference of these absolute height values is measured at the lowest bottom of the lid h 0 , here the groove bottom 30 r and the lowest level H, if the lid is considered as such. If the lid in a folded state on a can - as shown in Figure 3 - viewed - is the lowest point of the riot ring of the can on vaulted at a soda can dome-shaped bottom.
  • a chamber 20 which is not visible from the outside. It may be a surprise object, such as a disc-shaped gain information 44 or another physical object 45 placed in the space 20 in the region of the inner handle latch, which is hidden from the outside and located in the chamber 20. It is located in the cavity of the height h 20 between the two lid mirrors 10 and 30th
  • the outer radial dimension of the free edge 11 of the radial groove portion 10r running as the groove bottom portion is in the unloaded state over a vertically extending annular surface V1, with a differential dimension dr (for DELTA r or ⁇ r) with respect to said surface and thus also based on the inwardly facing contact surface of the ring strip narrow in height h 31 , which narrow design is made up of the total length of the outer wall of the sections 35,31b, 31c, 31,31a and 30b up to the groove bottom 30r.
  • An insertion with pressure generated by a tool upper part shown in FIG. 3 and FIG. 4 , causes a displacement of the free edge 11 by at least the differential dimension dr, wherein a radial force f r is applied and the skirt wall 10a is resiliently loaded, possibly the radial skirt portion 10r somewhat deformed axially downwards and / or slightly bulges the lid 10, with the application of an elastically yielding force.
  • This loading of the skirt wall leads only to a small extent to a plastic, mainly to an elastic deformation, which ensures that the edge 11 along the annular surface V1 at the curvature stage 31 c are passed and placed on the strip 31.
  • the elastic force f 11 of FIG. 1 and the skirt wall 10 a with the radial section 10 b, 10 r and its free edge 11 clamps firmly to the strip 31. It forms a second groove 1 a, which is located radially outside and axially above the first groove 2 a. It is also circumferential and visible from the outside, while by inserting the second lid mirror 10 with his apron, the first groove remains hidden from the viewer. The forming interior 20 is thus also hidden, but - as explained below - accessible through the opening tab 41.
  • the forces applied by the free edge 11 in the justification of the clamping point on the bearing seat 31 are shown in FIG. 2a in an enlarged detail.
  • the first curvature 31b is formed weaker with respect to the second sharpened curvature 31c.
  • the narrow circumferential strip 31 which serves as a bearing or seat, for receiving a clamping force f 11 , which is transmitted from the edge 11, but of a largely elastic yielding the skirt wall 10 a, 10 r, a slight plastic component and also slightly caused by a slight bulging of the lid mirror 10.
  • the forces f a and f r act as shown in FIG. 2 a.
  • FIGS. 4 and 4a show how the upper tool is referred to as the upper lid mirror 10, which as a whole is also referred to as cover section 1 with its skirt wall 10a, 10r , is attached to the lower or inner (functional) cover 2.
  • a joining rib 50 engages as an encircling, axially extending extension of an upper tool head 54 with a radially encircling support 54a and an axial extension 54b to the skirt 10a, 10b, 10r that a close contact is at least at the groove bottom 10r of the apron
  • the joining rib 50 as an engagement part of the tool head 55 has an inwardly facing surface 50b, which extends substantially axially and arc-shaped in the lower region corresponding to the curvature 10b, 10r. It ends abruptly substantially on that radial extent on which the free edge 11 ends at the curved portion 10r of the skirt wall, and extends from here starting with an obliquely inclined annular surface 50a upwards.
  • the annular surface 50a is sized and oriented so that it does not bear against the outer wall 35, but maintains a distance z from it as the upper tool portion 55 is lowered and with its transitional area at the kink 50 * between the two surfaces 50b and 50a is moved past the clamping seat 31, so the circumferential strip-shaped wall portion 31. This passing movement is shown in FIG. 2.
  • the joining rib 50 is not shown here, but only the axial and radial movement of the skirt 10 a, 10 r.
  • An elastic indentation for reducing the differential dimension dr to zero and preferably low negative values relative to the annular surface V1 is achieved by an axial pressure of the joining rib 50, when the free edge 11 is pressed by the shoulder 31c radially inward, while the axial force f a from the rib 50 acts on the radial portion 10r of the skirt. This is shown with the resulting force f r , wherein the upper lid portion 1 has already been lowered a little in the axial direction, as shown by dashed lines, which represents the inserted state.
  • the force f 11 is formed on the seat 31 by the free edge 11.
  • the lid state shown in dashed lines thus corresponds to the mounted or inserted state in which the free edge 11 has been pressed by sliding past the shoulder 31 c radially inward, wherein the resulting force is defined by the radial excess dr. If it is too big, difficulties in mounting can arise and the dissolving forces become too high. If the radial difference dimension (oversize) dr is too small, too little forces arise in the clamping seat and the second cover mirror is not sufficiently securely mounted.
  • the reference surface V1 orients itself at the shoulder 31c and is parallel to the axis 100. It has a diameter dimension d 31 , which is illustrated in FIG. 2a. Compared with this diameter measure, the specified difference size dr, which becomes negative after exceeding step 31c and was previously positive, is measured.
  • the axial height of the clamping seat 31,11 is substantially at the height h 30 , relative to a horizontal plane H, which is defined here by the groove bottom 30r of the inner circumferential groove 2a.
  • the height h 31 of the ring strip 31 in the linear region is at least to be selected according to the sheet thickness of the free edge 11, but preferably the height of the narrow strip is greater, up to two or three sheet thicknesses at the nip.
  • the axial height of the nip corresponds approximately to the height 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 to substantially the same extent in order to make the grooves 2a, 1a look as similar as possible. Nevertheless, a small step of the sharper curvature 31c in the transition to the nip is not always avoidable, but this paragraph is barely visible from the outside when the first lid section 1 is clamped.
  • the lid acts in the assembled (assembled) state as a standard lid, very similar to the geometry used by the Wall section 35, the continuation of the skirt 10r, 10a and the outer Cover mirror 10 is formed.
  • the inner lid mirror 30 faces a conventional beverage can lowered, resulting in an extension of the wall 35th was reached, because then only the outer groove wall 30 b and the intervening strip 31 follows.
  • the curvature region 31 b acts as Approach of a groove bottom which corresponds to that groove bottom 30r of the inner groove 2a.
  • the continuation of this groove bottom is not continuous, but by the seat the edge 11 on the strip 31 causes what by the curved portion 10r and the inner wall 10a of the skirt is reached at the upper lid mirror 10.
  • This portion 10r, 10a of the skirt corresponds to that portion 30r, 30a of the inner lid, not here as an apron, but as inner groove wall and groove bottom designated.
  • the curvature 31b is gentler than the curvatures 31c and 31a. These two stages define the transition into the stripe region 31 and out of this stripe region 31 out, wherein the strip 31 is aligned substantially axially, but slightly inclined. If a slight outward inclination of the strip area 31 is provided, the achievement of the snug fit of the clamping edge 11 is improved.
  • a release of the clamping seat can be achieved by overcoming the radial force f 11 . It is overcome by an axial pulling force emanating from the lid mirror 10 caused by the gripping tab 41. When actuated, a tensile force is created which releases the edge 11 from the strip 31 and bursts out when the radial clamping force f 11 becomes free leads. As a result, the upper lid mirror 10 is removed from the inner lid mirror 30 and the chamber 20 accessible for removal of the stored therein object 44 or 45. During the opening movement may additionally open the upper Aufbrechteil in the lid mirror 10 at least partially, creating a support effect on the stored object 45th arises and the axial tensile force can be applied improved. If only one disc 44 is inserted, which is partially placed around the handle portion 40, the tensile force can be applied without the support effect, it improves the resulting Aufplatzrial and the separation of the upper lid, which happens surprisingly, but clearly.
  • skirt wall 10a has, for example, a radially inwardly directed curvature region to engage the inner groove wall 30a of the groove 2a. The force is then directed radially inward.
  • Other possibilities of applying clamping forces according to f 11 are accessible to the person skilled in the art on the basis of the preceding description.
  • FIG. 4 will be explained in more detail with regard to its upper tool part, which is the Tool surfaces 50b and 50a of the joining rib 50, which also in Figure 2a is shown enlarged.
  • the circumferential surface 50a as inclined Tapered surface ends in an upper receiving space 56, which is open at the bottom. He is dimensioned such that it can reach over a formed fold 37 from FIG. 3, as shown in the left field.
  • An outer tool part 52 and a Intermediate part 53a ensure a tight fit of the joining rib 50 Tool part 54b on the body portion 54 at a in Figure 3 closer apparent Carrying section of the tool head.
  • This tool head is not one The device shown in the axial direction movable to the engagement position in left half of Figure 3 and to the starting position in the right half of Figure 3 get.
  • the lid portion 1 In the starting position, which is also shown in FIG. 4 in the upper picture, the lid portion 1 with its skirt wall 10a, 10r at the joining rib 50th attached and thereby held by negative pressure at the joining rib so that the free Edge 11 can slide past the seat 31 during lowering.
  • the finished fold 37 at the top of the Beverage can 3 which from a folding operation of the lid edge 36 with a not shown Rumpfbördel arises.
  • the inclined surface 52 a which on the tool part 52 is provided, ensures that the tool head when closing not with a retracted portion 38 of the beverage can body 3 collides and is on the retracted upper torso section 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 Folding region 37, wherein radially inside the lid portion 1 placed on the clamping seat 31 otherwise the can will not be touched or damaged.
  • the inner surface 50a has one of Figure 4 and Figure 2 easily imaginable Distance z from the wall 35, but may also have a different shape, if they at least in the lower portion in the region of the free edge 11 is designed so that they passes by the clamping seat of the strip 31.
  • the arcuately curved surface 50b causes a relatively wide to the radial dimension of the lower arc portion 10a, 10r of the skirt wide footprint for applying the insertion force f a of Figure 2a when lowering the upper tool part 55 of Figure 3.
  • the dimensioning of the differential dimension "dr" of Figure 2 is adjusted so that a radially applied force f 11 is not too large and a bursting out of the lid portion 1 from the clamping seat by operating the opening system 41 is possible. Reliable measurements for this have resulted in dr values between 1/10 and 2/10 mm.
  • the inner lid diameter d 31 at the lower end of the step 31c and the beginning of the annular portion 31 is 48.59 mm in this example.
  • the resulting force is below 30N to 35N to allow a meaningful opening.
  • this force can not be accurately predicted and is subject to an adjustment process that takes place in an iterative process and will be described below.
  • the mounting tool for inserting the upper lid mirror 10 of the outer Cover section 1 with its skirt wall of an axial portion 10 a and a radially aligned bottom or arc segment 10b, 10r is previously been addressed.
  • the joining rib 50, on the skirt wall radially on the outside engages, is designed axially longer than the axial length of the skirt with her axial portion 10 a and has an inwardly facing upper inclined surface 50 d, the is steeper in terms of magnitude, as a slightly outwardly sloping outward Surface 50a, which at an angle> 0 ° but ⁇ 30 °, preferably in a range is oriented between 10 ° and 15 °.
  • the outward facing surface opens at the Kink 50 * near the free edge 11 at the bottom of the joining rib 50, wherein the Knick in an arc segment 50b passes, the inward facing second Surface of the joining rib 50 defined. It is adapted to at least the radial Arc segment 10a, 10r and is largely attached to these segments Beginning of the impressions, in particular with regard to the ground segment 10r.
  • the receiving space 56 is dimensioned so that a closed fold 37 of Figure 3 can be recorded in it, as shown in the left half of Figure 3.
  • the axially upper position of the tool 55 is in Figure 4 and in Figure 3 in the right Field shown.
  • the retracted, axially lowered position is in Figure 3 in the left Field shown so that the function and operation as well as the geometric Construction of the upper tool as a mounting tool for the closure cap, in particular, the upper portion 1 of the overall cover is understood.
  • the outer surface of the joining rib 50 shown as a flat surface 50a may also be obtained a different shape. It only has to intervene past the press fit become. A distance z of this outer surface 50 a from the top wall 35 justifies a safe passing without mechanical deformation of the cover in the rest, after the lid segment 10 should only be placed, but not with the Assembly tool other cover geometries to be changed. The distance z is seen in Figure 4a, wherein a substantially constant strip spacing between the outer surface 50 a and the inclined top wall 35 is formed, until the beginning of the mounting edge 36 of the lid.
  • the radially outer elements 52,53 of the mounting tool are with a screw as shown in Figure 3, on the head portion 54a of the upper Section 54 of the tool attached to replace the joining rib 50 with the To allow arranged thereon supporting portions 54,54a.
  • the insertion of the clamping edge 11 on the seat 31 depends on which elastic force f 11 is required to achieve a secure fit and a release of this snug fit upon actuation of the opening lever.
  • the oversize dr contributes to this as a difference measure according to FIG. This measure is determined by the geometry cut by punching and the dimensions of the upper lid section 1, and by a first deforming plastic deformation of the skirt wall 10a in its rest position.
  • This plastic deformation (for example, by deep drawing) can be changed with another tool according to Figure 5 and thus the radial dimension dr can be precisely adjusted, in addition to or independent of a geometric design in a punching and a preforming of this upper lid segment 1, in which operations Deviations are possible, which can be influenced, compensated and redefined with the calibration tool according to FIG. 5 by reshaping.
  • an upper tool part 70 and a lower tool part 60 are movable in the axial direction 100 relative to each other.
  • the upper tool part 70 is axially adjustable and the lower tool 60 immobile as a support member. It has a body 69 as a lower support member and a spacer 65 which determines the axial dimension h 65 of the support member 60.
  • the support member 60 has a collar 61 which faces upward and has an annular recess 64 which has an inner edge 62 and an outer annular ridge 63.
  • the annular ridge 63 is shorter than the skirt wall 10a, as previously described.
  • a lid segment 1 according to Figure 2 is reversed (lid mirror down) in the annular recess 64 inserted so that the curvature 10k of the lid mirror near the inner edge 62 of the recess 64 comes to rest.
  • the axis 100 is drawn 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 having an inclined outer surface 71 has, which is tuned to the radial dimension of the recess 64 so that the inner end lies within it and the outer end 71a of the Bevel 71 outside. This results in a setting range, depending on the Adjustment depth of the upper calibration head 70, which in turn on a support member 72nd is arranged.
  • a resting edge region of the lid mirror 10 is an upper Apron section with its outward curvature 10r open at the top for engagement of the inclined surface 71, wherein the lower end of the curvature 10r happens, but in the course of adjusting the inclined surface at a certain axial position contacts the inner surface of the curved portion 10r. From the Touching will be a plastic deformation of the skirt wall 10 a done to the Arc segment 10r further out to bend and thus another Difference measure dr to get.
  • At fixed axial adjustment depth can be achieved by changing the height h 65 of the spacer 65 in low stages, ie, for example, with a change of shims 65a in steps of 0.05 mm, a very accurate adjustment of the plastic deformation.
  • the engagement depth can be done by changing the height of the spacer 65 and the upper tool head 70.
  • the relative displacement can also be effected by moving the receiving part 60 relative to the fixed calibration head 70.
  • dr size adjusted by adjusting the height h 65 of the spacer 65.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Cookers (AREA)
  • Mirrors, Picture Frames, Photograph Stands, And Related Fastening Devices (AREA)

Claims (24)

  1. Couvercle pour tronc de canette de boisson (3), dans lequel couvercle sont prévus un niveau de couvercle intérieur et extérieur (30, 10) qui sont espacés (h20) l'un de l'autre dans un sens axial (100), en formant un intervalle (20) destiné à recevoir un objet physique (44, 45) qui n'est pas visible depuis un sens de vision dirigé vers le niveau de couvercle extérieur (10), dans lequel
    (a) le niveau de couvercle intérieur (30) est relié par une section (30r) bombée vers l'extérieur, qui constitue une rainure (2a) entourant le niveau de couvercle, à un bord de positionnement (36) à installer sur le tronc de la canette de boisson ;
    (b) le niveau de couvercle extérieur (10), pour fixer la distance axiale (h20) par rapport au niveau de couvercle intérieur (30), est bloqué par rapport au niveau de couvercle intérieur (30) à l'aide d'une composante de force (f11) orientée sensiblement radialement, en formant un emplacement de blocage (11, 31) s'étendant de manière périphérique en longueur par rapport au niveau de couvercle intérieur (30).
  2. Couvercle selon la revendication 1, dans lequel l'emplacement de blocage (11, 31) est placé radialement (V1) à l'extérieur du niveau de couvercle intérieur.
  3. Couvercle selon la revendication 1, dans lequel la force notamment élastique (f11) agit radialement vers l'extérieur.
  4. Couvercle selon la revendication 1, dans lequel le niveau de couvercle extérieur (10) présente une section périphérique (10a, 10b, 10r) s'étendant axialement et la force , (f11) est transmise par la section périphérique et est appliquée du moins partiellement.
  5. Couvercle selon la revendication 1, dans lequel l'emplacement de blocage (11, 31) est placé sur une section de paroi (31) entre le bord de positionnement (36) et la section bombée vers l'extérieur (30r).
  6. Couvercle selon la revendication 5, dans lequel la section de paroi est une partie d'une paroi de couvercle (35, 31, 30b) qui s'étend en biais par rapport au sens axial (100) et la section de paroi est réalisée sous forme d'une bande périphérique étroite (31) dont l'inclinaison est orientée sensiblement parallèlement au sens axial (100).
  7. Couvercle selon la revendication 6, dans lequel la bande périphérique présente une zone périphérique supérieure et inférieure (31c, 31a) transitant par degrés vers les sections de paroi restantes ou résiduelles de la paroi du couvercle, notamment vers la paroi principale (35) s'étendant vers le bord de positionnement et vers un segment de paroi extérieur (30b) de la rainure périphérique (2a).
  8. Couvercle selon la revendication 6, dans lequel le niveau de couvercle extérieur (10) présente une section périphérique possédant une épaisseur de tôle et la bande périphérique étroite (31) une hauteur axiale (h31) qui représente un multiple de l'épaisseur de tôle.
  9. Couvercle selon la revendication 6, dans lequel la bande périphérique (31) s'étend certes sensiblement parallèlement à l'axe, mais en s'inclinant légèrement en cône, cette inclinaison étant inférieure à une plus forte inclinaison d'au moins une section (35) placée plus haut de la paroi de couvercle (35, 31, 30b).
  10. Couvercle selon la revendication 1, dans lequel une composante de force élastique (f11) faisant office de force de blocage exerce sur un siège de blocage (31) un blocage qui peut être relâché en appliquant une composante de force de traction orientée du moins axialement pour séparer le niveau de couvercle extérieur (10) du niveau de couvercle intérieur (30) et pour libérer l'intervalle (20).
  11. Couvercle selon la revendication 1, dans lequel le niveau de couvercle extérieur (10) comporte une pièce de poignée extérieure (41) permettant d'actionner une zone d'ouverture extérieure définie par des lignes entaillées dans le niveau de couvercle.
  12. Couvercle selon la revendication 11, dans lequel le niveau de couvercle intérieur (30) présente aussi une pièce de poignée intérieure (40) placée sensiblement axialement en dessous de la pièce de poignée extérieure et permettant de libérer une zone d'ouverture intérieure définie par des lignes entaillées dans le niveau de couvercle intérieur (30).
  13. Couvercle selon la revendication 1, dans lequel
    (aa) une section périphérique (10a, 10r) du niveau de couvercle extérieur (10) présente une section de tablier partiellement en forme de U, notamment sensiblement la moitié d'une autre rainure en forme de U (1a) et possède une arête extérieure (11) orientée radialement à l'extrémité de la section de tablier ;
    (bb) il est prévu, entre la section bombée vers l'extérieur (30r) -formant une première base de rainure- du niveau de couvercle intérieur (30) et le bord de positionnement (36), dans l'extension d'une paroi de couvercle (35, 31, 30b) une section bombée (31b) sensiblement en forme de U, notamment sensiblement l'autre moitié de l'autre rainure en forme de U (2a) ;
    l'arête extérieure (11) étant en contact en dessous de la section bombée partiellement en forme de U grâce à la force (f11) agissant radialement à l'extérieur, afin de constituer une deuxième base de rainure pour une deuxième rainure périphérique (1a) laquelle base de rainure, considérée optiquement de l'extérieur, a sensiblement le même aspect que la première base de rainure ou que la base de rainure d'un couvercle pourvu d'une seule rainure périphérique dans lequel un seul niveau de couvercle s'étend sensiblement à la même hauteur axiale (h10) que le niveau de couvercle extérieur (10), afin de permettre une confusion entre les couvercles lorsqu'on les considère de l'extérieur en état replié sur un tronc de la canette.
  14. Couvercle selon la revendication 13, dans lequel les deux rainures périphériques (1a, 2a) sont disposées avec un décalage axial et radial l'une par rapport à l'autre.
  15. Couvercle selon la revendication 1, dans lequel le bord de positionnement (36) est un bord de pliage permettant de former un pli (37) par enroulement avec une bordure de tronc adaptée à cet effet sur le tronc (3).
  16. Couvercle selon la revendication 1, qui est composé du moins substantiellement de tôle métallique.
  17. Couvercle selon la revendication 1, dans lequel la distance (h20) entre les niveaux de couvercle est choisie de manière à ce que l'objet physique (44, 45) exerce une fonction de soutien lors de l'ouverture du niveau de couvercle extérieur (10) afin de relâcher l'emplacement de blocage (11, 31).
  18. Couvercle selon la revendication 14, dans lequel les deux rainures (1a, 2a) sont orientées dans le même sens.
  19. Couvercle selon une des revendications précédentes, dans lequel l'emplacement de blocage (11, 31), notamment la bande périphérique selon la revendication 6, s'étend en biais en cône, notamment en s'évasant vers le haut (α), suivant un angle allant de 0° à 6° par rapport à l'axe (100) ou à une surface annulaire (V1) qui traverse l'emplacement de blocage.
  20. Couvercle selon la revendication 1, dans lequel l'emplacement de blocage est placé à une hauteur axiale (h30) qui équivaut sensiblement à la hauteur axiale du premier niveau de couvercle (30) par rapport à l'emplacement le plus bas de la rainure périphérique (30r) dans un couvercle ou par rapport à une surface où repose une canette de boisson fermée à l'emplacement le plus bas (h0).
  21. Procédé de fabrication d'un couvercle pour tronc de canette de boisson (3), dans lequel couvercle sont prévus un niveau de couvercle intérieur et extérieur (30, 10) qui sont espacés l'un de l'autre (h20) dans un sens axial (100) en formant un intervalle (20) destiné à recevoir un objet (44, 45) qui n'est pas visible de l'extérieur depuis un sens dirigé vers le niveau extérieur (10), dans lequel
    (a) le niveau de couvercle intérieur (30) est relié, par une section bombée vers l'extérieur (30r) constituée par une rainure (2a) entourant le niveau de couvercle, à un bord de positionnement (36) à placer sur le tronc de canette de boisson ;
    (b) il est prévu, sur le niveau de couvercle extérieur (10), une section périphérique en forme de tablier (10a, 10b, 10r) qui constitue, lors de sa mise en place, avec une section de paroi (31, 35, 31b), au dessus de la section bombée vers l'extérieur (30r) de la première rainure (2a), une deuxième rainure (2a) décalée axialement et radialement par rapport à la première rainure.
  22. Procédé selon la revendication 21, dans lequel la correspondance mécanique est interrompue en actionnant une languette de préhension (41) disposée sur le niveau de couvercle extérieur (41) afin de libérer ou d'ouvrir la cavité (20), lors de l'ouverture de laquelle les niveaux de couvercle s'éloignent l'un de l'autre.
  23. Procédé selon la revendication 21, dans lequel la correspondance mécanique applique sur le siège (31) une force de retenue telle que la position relative des niveaux de couvercle (10, 30) se fixe sans colle.
  24. Procédé de réglage d'une force de blocage d'un tablier (10a, 10b, 10r) d'une première section de couvercle (1) présentant un niveau de couvercle extérieur (10) sur un siège (31) d'une deuxième section de couvercle (2) présentant un niveau de couvercle intérieur, dans lequel
    la première section de couvercle (1) est estampée avec le tablier et le niveau de couvercle extérieur et le tablier est constitué par une première déformation mécanique ;
    on procède à une nouvelle déformation plastique du tablier dans un autre outillage (60, 70) afin de modifier la position radiale (dr) d'une arête libre (11) du tablier ;
    on procède à une insertion de la première section de couvercle (1) re-déformée plastiquement avec l'arête libre (11) sur le siège (31) de la deuxième section de couvercle, en déformant élastiquement au moins une section du tablier et en appliquant de la force de blocage (f11) au siège de la deuxième section de couvercle (2).
EP01919150A 2001-03-01 2001-03-01 Couvercle de fermeture a surface double et procede de fabrication dudit couvercle Expired - Lifetime EP1363836B1 (fr)

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 (fr) 2001-03-01 2001-03-01 Couvercle de fermeture a double miroir et procede de fabrication dudit couvercle

Publications (2)

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EP1363836A1 EP1363836A1 (fr) 2003-11-26
EP1363836B1 true EP1363836B1 (fr) 2005-10-19

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Application Number Title Priority Date Filing Date
EP01919150A Expired - Lifetime EP1363836B1 (fr) 2001-03-01 2001-03-01 Couvercle de fermeture a surface double et procede de fabrication dudit couvercle

Country Status (7)

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US (1) US7278548B2 (fr)
EP (1) EP1363836B1 (fr)
JP (1) JP2004521037A (fr)
AT (1) ATE307061T1 (fr)
BR (1) BR0116923B1 (fr)
DE (1) DE50107778D1 (fr)
WO (1) WO2002070358A1 (fr)

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EP1892191B1 (fr) * 2005-05-17 2010-01-06 Toyo Seikan Kaisha, Ltd. Boîte carrée et procédé et dispositif de double couture de ladite boîte
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
CN102725200B (zh) * 2009-10-23 2015-12-02 巴里·W·查宾 饮料罐装置
WO2011094578A1 (fr) * 2010-01-29 2011-08-04 Graham Packaging Company, L.P. Fermeture d'équilibrage de pression
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

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US6295137B1 (en) * 1998-12-11 2001-09-25 Xerox Corporation Method of color correction using multi-level halftoning

Also Published As

Publication number Publication date
DE50107778D1 (de) 2005-11-24
EP1363836A1 (fr) 2003-11-26
BR0116923A (pt) 2004-04-27
WO2002070358A1 (fr) 2002-09-12
US7278548B2 (en) 2007-10-09
ATE307061T1 (de) 2005-11-15
US20040129703A1 (en) 2004-07-08
BR0116923B1 (pt) 2011-08-09
JP2004521037A (ja) 2004-07-15

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