DE1923092C3 - Closure capsule for bottles and bottle-like containers - Google Patents

Description

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The invention relates to a sealing cap for hates and bottle-like containers that have an annular bead around a center plate with the container has towards concave cross-section, which when attaching the closure capsule to the container by a ZieWgang is leveled and on which em m its upper part cylindrical, in its lower part Partly frustoconical widening, inside lined with a sealant jacket with inwardly rolled edge adjoins, which is behind a collar when attaching the closure capsule grabbing the container mouth and using a hook opener let it bend away from the covenant.

In the case of caps of this type, which has been used for many Known and in use for years, it has always been considered an essential principle been that the jacket edge pressing against a collar or annular bead on the container mouth must be rolled up more than 360 °. So is. for example in a known generic closure capsule (German patent specification 1 167 679 and Swiss Patent 441 018) the edge of the jacket is rolled up by about 400 °. Until now it has been believed Only in this way give the edge the rigidity required for a reliable closure to be able to, since with a generic closure capsule all axial forces which the closure capsule hold on to the container and, if necessary, have to withstand considerable internal pressures, exclusively from. rolled up the edge of the

Well known generic

solves the man's _{end edge}

is rolled, "<J" is embedded.

^un ^ ^d ; ^e prSSendewishly achieved that the

"^ ^L _nn Tt _ärker rigid yet with a MartelrMg ^ KeM * _ ^. ^ _{End edge}

i. n & chmofineTlticaieT brim curls has the only .WU around _ersch ^& _lußkap sel on the container

ffiriTsich when fastening the Verdaß them * ^ of _{the cylindrical}

^ f ^ an ae _{the cross section of the}

Part ^d ^ ^a ™ 2 _{corresponds to the shape of} a *** £ *? * £ _semicircle , gens e halts the ^ _{through and}

The ^ f ™ ¹ ^ ™ ^ _e - a _free edge in the seal

by ^^ fSJSt riies ^{vault uad springs} £. Eg ™ *** £ ^ _{OTgangss only} slightly

on in which it differs considerably from a 360 or more rolled-up edge of the jacket distinguishes S state of the art is still applied to the Belgian

_a5 see ^ £ S £ SZS

p ^ J ^

slotted «; ^η ^ ™ ₆ \, repeatedly referenced. The Ve ^rec Wu ^ß k ^ ι

reversible, ^. ^. ^. ^^ ea overpressure. ^^^^^ ξ ^^^ οΛΛήΆ 664 311

^F ^ '"^ Let the edge of the jacket be known, _{at least}

inwards «ngrojtt ¹ ^ ^e £ ^ _{the Festh} old-27ü_, and the Beha ^ gcM dot, ^

forces will exclude from

^ Gebjacjt _French patent specification

_Μ ? Ί821 known a bottle cap that ^ ^{! 3} ^ f _n ¹ _p 4 ^m | _c Sfa _u rV pliable plastic has a ^ J ™ * ^U * ^SC ™ _m sheet metal.

and eim except ^ * ³ ^ ™ ^ _{Γ as 360} o _after

^ «^ S ^^ JJ ^ f _the edge wanted by simple rainnen ^ aut, oe ^ ^^^

dudes ^ ζ ^ Τ ^ Παηαϊ tearing by means of a neck to ^ ^l " ^u ^ ⁿ " ⁿ °. In contrast, a Z ^^. ² "f ™ J" J ^ ^mg _d for _{the inventor} . ^D closure capsules ^"G ^% X _es ^de _z ^r _{erreißbarem-making} outbound ^ from 1jdtt * ^ ^ei _{n" duren a} kind of sheet metal produced and [can mn: aurcn thermoforming operation on ^

the container ^ i., ^^? ^! ^, ^ _forth known from "^^ Si ^ SS g ^estellt 5p _f ^Kr ° ^nenve ^ i!" ^S ^ ^de _n ^r If _an «and sch-

"X— Es W each in an axial

S ₀ sealing capsule before attachment

and other properties of the closure capsule sheet metal used to different degrees and leads to the fact that individual sealing capsules the internal pressure not safely withstand their container.

The invention is based on the object of a Closure capsule of the genus described at the beginning ^ Xen

capsule, _tc " _ann " _nfi

F i g. 4 the subsequent work process and Fig. 5 emen another operation in which the Closure capsule your up to attach to one Keep the container in shape. ".," - ,, -_.- ,,

The in F i g. 1 and 2 shown cap 1

<f

serves to close an area shown as a bottle 321, ^. ^ VtlLidbereich 3M * and

th container 2 with a collar 21 on its Mim- is, a «P & xjE & ^ fZ, protruding

dung and has a middle plate 11 and an intermediate plane ^ voj, j ^

Coat 12, which is mitein- Rmgbereich 322 by a Riagwulst 13. The liere uc>

connected to each other. The middle plate 11 comprises 5 321 and that of the edge area ^,

a raised, disc-shaped central area on the middle B "" *** ™ -it * _d 5 _es

111, the heights of the middle area λαχ uu with a flat, annular recess

^{113 by a region 313 of} the lower stamp, which expands towards this, ^ Zu ^ _0111101

gel stump 112 is connected. The jacket 12 comprises, when the two S ^tem f ^ j "j £" _{area 3n}

a cylindrical upper portion 121 and a xo are moved, aer mu "* larger penetrates

frustoconical lower section 122, to which of the lower punch m the in the D ^ rcnrnes he g

a central area 321 of the "J ^ J" * ⁶ rolled inward by 200 to 250 °. .

Edge 123 adjoins. The annular bead 13 has the shape of a beaded edge ^ g ^ a ^^^^^

half a torus; its concave side is the wider edge area 323 a "der_ume ™ °"

facing container 2, so points downwards. The ring i ₅ the widths of the sheet thickness of the capsule is Wesent

bead 13 is on the one hand the same as the circular outer borrowed. ,. ,.,,

Boundary of the plane ring 113 and on the other hand the lower part 331 of the matn «33 is toUutd

connected to the cylindrical part of the jacket has an inner diameter which is only quite small

that which the annular bulge extends upwards, and is gigantic larger than "^ Ante ^ dm" rde. ^ Jter

Although considerably above the plane of the back portion 111 _M stempeis; the upper part 332 ^te ^ awzeisi eoen

made of hollow, but its inner diameter is larger, so aau

The interior of the annular bead 13 is filled by a sealing compound 14, for example injected between it and the SnteereLSr RiS, consisting of two vertical cylindrical surfaces, which extends so far down that space 333 is free. The bottom ^ * ^ ™ * ¹ covers the upper end of the edge 123. Around the a ₅ a circular ring 334, which is attached to the container 2 by means of an outer quarter-taper closure capsule according to FIG. Olvrstpninel 32

the jacket 12 is pulled down until the ring die 34 surrounds the plempe * **

the edge 123 under the action of an axis 22 and has at its lower end a lateral pressure surface 341 which is directed towards the inside of the container 2 and which engages the collar 21 with the axis egg erapei ter. The annular bead 13 forms an angle 3410 of more than 50 emschl ebt a stock of material, which contains the largest part of the capsule according to Fig.3 bis5_ from emem

allows lengthening of the jacket 12; an additional blank 10 is produced, the lent a see benfonmgen extension results from the elasticity of the bottom 101, a cylindrical jacket MW una metal, from which the closure capsule 1 consists. The 35 one these two parts ^{mite! well d} V! S £ n? trdie annular bead 13 and the cylindrical part 121 of the Man- intermediate region 102 comprising the in Uuerscnnutaie means of 12 are thereby deformed and set closely to the form of an upside-down U autweist aesden upper part of the collar 21 to ; Here, the sen leg obliquely ^™ ά ^"α & *} ^ο \ ⁵ ™ $ ™ °? *? Κη sealant squeezed 1 14 between the closure shell 1 of the larger leg on the side of the jacket Derin- and the collar 21. _4, o del JIn the starting position of the device according to

The shape of the rolled-up lower edge 123, Fig. 3, the lower punch 31 does not take a.eider under the collar 21 completely inward development and touches the upper punch 32, men: to be pressed, facilitates the gripping and removal of the ring punch 34 is raised. The Kowmg; The closure capsule 1 with a conventional bottle is inserted in such a way that its bottom is between the opener, and there is no risk that this upper punch and the lower punch will damage the collar 21. If the cap casing engages in the cavity 333 without a mi armchair 1, for example from a 0.2 mm thick sheet metal nem lower edge, stir the bottom of the cavity to an aluminum alloy with 2 · / · magnesium. The upper punch 32 is now built , t \ .g. * Is made, it withstands an internal pressure of 3 kp / cm * together with the ring punch 34 along the axis 15. 50 22 moved down; the blank is

In Fi g. 3 to 5 is the development of the closure see the upper die and the lower die encapsulated shown in a device that constrains one, and these deform the regions 11 unu Lower punch 31, an upper punch 32, one the 113 and the inner area of the K'^ uhUes 13. Lower punch leading die 33 and a ring If the upper punch 32 is together with the Has stamp 34. The lower punch 31 has at 55 ring punches 34 moved further downwards. its upper, the pressure surface forming end face of the lower edge of the jacket 103 denι the bottom of the a flat central region 311, which passes through a cavity 333 and is due to the WiAunj of Cylinder area is limited, a semi-torus-shaped, quarter-torus-shaped areas 3341 and 3J42 So in cross-section semicircular edge bead rolls. As soon as the curling is finished ^ the remain 313 and an intermediate, recessed upper punch and the lower punch stand, and aer Ring area 312. The height of the edge bead 313 is ring punch 34 moves according to FIG. 4 alone larger than that of the middle area 311. The ter downwards, so that its lower surface The outer surface 314 of the lower punch 31 is cylindrical in the blank on the one hand the outer area of the ring

_drisch ^r bead 13 and the cylindrical section

The upper punch 32 has on its lower, the 65 and on the other hand the frustoconical area The end face forming the pressure surface produces a flat central 122.

1 sheet of drawings

Claims (1)

has an annular bead with a cross section that is concave towards the container, which when the Closure capsule is leveled on the container by a pulling process and attached to the em in its upper part cylindrical, in its lower part a frustoconical widening, inside ηώ of a sealing compound lined jacket with inwardly rolled edge is connected, when attaching the closure capsule behind a collar on the container mouth grips and can be bent away from the collar with a bottle opener, characterized in that that the edge of the jacket (123 to only 200 to 250 ° is rolled so that its end edge is facing up and into the sealant is embedded. . shows