DE8712928U1 - Packaging container with lid ring - Google Patents

Description

DIPPING. HORST ROSE DlPLrlNb« RfetiR^KOSEt., DJPLrlNG. PETER SOBISCH

PATENT ATTORNEYS; AUTHORIZED BY THE EUROPEAN PATENT OFFICE - EUROPEAN PATENT ATTORNEYS

Patent Attorney Rose, Kosel&Sobisch * Ödastrasse4a

Post box 129, D-3353 Bad Gandersheimi Post box 129

D-3353 Bad Gandershelm 1

2 i Sep. 1987

Telephone (O 53 82) 40 38 Telex 957422 sledpd Telegram address: Siedpatent Badgandersheim

Your file number: . Our file number: 2298/63

Blechwarenfabriken Züchner GmbH & Co

DESCRIPTION

Packaging container with lid ring

The invention relates to a packaging container according to the preamble of claim 1.

In known packaging containers of this type (German standard DIN 2028, Part 1, June 1987 edition), two circumferential grooves are formed on the inside of the lid ring, which prevent the packaging container from being completely or completely emptied. The filling materials for these packaging containers are particularly paints and varnishes, the disposal of which is problematic and falls under the law on the prevention and disposal of waste (Waste Act - AbfG) of August 27, 1986.

The invention is based on the object of enabling the packaging containers mentioned above to be emptied as completely as possible.

Bank account: NORD/LB, NL Bad Ganderehem (&Bgr;12·278 337 21J.*RUJ.W 22H8W0 · ■'ttjstgiro account: Postg'roamt Hannover (BLZ 250100 30). Klo.-No.

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This problem is solved by the features of claim 1. Cans, Kimer or Üobbocks are particularly suitable as packaging containers. The body can be welded from white oil, for example, and connected to a base by a double fold. The connection between the body and the lid ring preferably also consists of a double fold. To empty the packaging container, it is swung in the usual way with the opening facing downwards. The funnel ring forms an inclined discharge surface for the contents and enables at least approximate emptying of the packaging container. The funnel ring can be made of sheet metal or plastic. In the latter case, it can be a molded part or deep-drawn film.

According to claim 2, the funnel ring can be securely positioned relative to the packaging container.

The features of claim 3 result in relatively low material consumption for the funnel ring.

According to claim 4, a secure positioning of the funnel ring relative to the fuselage is achieved.

The features of claim 5 result in secure guidance during installation of the funnel ring and, after installation, a good retention of the funnel ring in the fuselage.

According to claim 6, a favorable transition is achieved from the funnel ring to the inner end region of the lid ring. The funnel ring can rest on the body on the one hand and on the inner end region of the lid ring on the other hand under radially resilient prestress, which leads to a particularly good seal of the annular gaps adjacent to the funnel ring and thus to the most complete possible emptying of the packaging container.

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With the features of claim 7, a particularly complete flow of the filling material over the funnel ring and out of the opening is achieved.

According to claim 8, a particularly simple and material-saving production results. The funnel ring can be flanged outwards from an initially cylindrical apron at the inner end of the cover ring.

According to claim 9, the inner ring section can be flanged outwards from an initially cylindrical skirt at the inner end of the cover ring in a similar manner. Here, the extent of the material deformation required by the flange is advantageously smaller.

According to claim 10, a funnel ring design is obtained that is particularly advantageous for emptying the filling material. The inner ring section allows the filling fluid arriving via the outer ring section to flow away without any problems.

External rolling according to claim 11 is preferably used for packaging containers that are intended for corrosive filling materials. Acrylic resin paints with aqueous solvents can be mentioned as an example. The external rolling protects the unprotected inner cut edge of the lid ring from corrosive attack by the filling material. The special design of the funnel ring according to claim 11 also enables the packaging container to be completely emptied in these cases.

With the features of claim 12, the known agitators or mixing systems can also be used in packaging containers equipped with a funnel ring. These are placed on the opened packaging in place of the push-in lid when the push-in lid is removed.

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packaging container and secured to the lid ring with two locking claws that are usually diametrically opposed. A shaft with mixing blades then extends into the filling material. Rotation of the shaft results in the filling material being thoroughly mixed. Such mixing systems are used in particular for mixing paints and varnishes, e.g. in car paint shops. The locking claws are usually attached to a shaft that is parallel to the longitudinal axis of the packaging container. This shaft can be moved back and forth in the direction of its longitudinal axis against the force of a spring and can be pivoted about this longitudinal axis. This means that the locking claws can lock themselves under the step of the funnel ring when actuated from the outside. This step is preferably ring-shaped.

According to claim 13, a relatively low material consumption results for the funnel ring. The inner end of the funnel ring can rest against the lid ring in a resilient manner in order to achieve the best possible seal against the contents. The locking surface can be arranged at least approximately at right angles to the longitudinal axis of the packaging container.

According to claim 14, a particularly material-saving production results.

With the features of claim 15, the previously mentioned, known agitator or mixing system can also be used with this design of lid ring and funnel ring. In this case, the locking surface can again run at least approximately at right angles to the longitudinal axis of the packaging container.

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Further features and advantages of the invention emerge from the following description, which explains the invention in more detail using the exemplary embodiments shown in the drawings. It shows:

Fig. 1 a longitudinal section through part of a packaging container with lid ring and funnel ring,

Fig. 2 to 4 each show a longitudinal section through a part of another embodiment of the packaging container,

Fig. 5 and 6 each show a longitudinal section through a part of yet another packaging container with a funnel ring flanged outwards,

Fig. 7 to 9 each show a longitudinal section through a part of yet another packaging container with external rolling on the inside of the lid ring and several sealing surfaces for the push-in lid on the lid ring and

Fig. 10 and 11 each show a longitudinal section through part of another packaging container with external rolling on the lid ring and a funnel ring integrated into the lid ring.

Fig. 1 shows a packaging container 1 with a body 2 made of sheet metal and a lid ring 4 connected to the outside of the body 2 by a double fold 3. An opening 5 of the lid ring 4 can be closed by a known press-in lid (not shown). To enable the remaining contents of the packaging container 1 to be emptied, e.g. a paint or varnish, a funnel ring 6 is provided, which in the case of Fig. 1

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is deep-drawn from plastic film. An outer section 7 of the funnel ring 6 is arranged coaxially to and directly on the body 2 and extends with an outwardly flanged outer edge 8 into the double fold 3 and between the body 2 and the cover ring 4. This holds the funnel ring 6 securely.

The outer section 7 goes into a towards the opening

5 extending funnel section 9 of the funnel ring

6, The funnel section 9 in turn merges into an inner section 10 of the funnel ring 6.

The inner section 10 engages behind an inner end region 11 of the cover ring 4 from the outside in a sealing arrangement. To improve this sealing effect, the inner section 10 can rest against the inner end region 11 under a spring preload directed radially inwards. By means of such a preload, the outer section 7 is simultaneously pressed outwards against the body 2 in a spring-loaded manner. This prevents residual amounts of the filling material from penetrating in an undesirable manner between the funnel ring 6 and the body 2 on the one hand and between the inner section 10 and the inner end region 11 on the other. When emptying the filling material from the packaging container 1, it is turned upside down in whole or in part. The filling material then flows out of the opening 5 along the body 2 and the funnel section 9 with practically no residue.

If necessary, the packaging container 1 and the packaging containers of all embodiments to be described below can be resealed with the push-in lid.

3t) In all drawings, identical parts are provided with identical reference numbers.

The embodiment according to Fig. 2 is similar to that in Flg. However, in the case of Fig. 2 the funnel ring 6 is made of

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Sheet metal, e.g. tinplate or aluminum sheet. In addition, a connecting hole 12 is provided between the funnel section 9 and the lower section 10 of the cover ring 4, which extends inwards under an inner end 13 of the cover ring 4.

In Fig. 3, an outer edge 14 of the outer section 7 of the funnel ring 6 engages an outwardly extending bead 15 of the body 2. The outer edge 14 rests against the base of the bead 15 under outwardly directed spring preload. Accordingly, the inner section 10 of the funnel ring 6 rests against the inner end region 11 of the cover ring 4 with outwardly directed spring preload for sealing. For axial positioning, an upper end of the inner section 10 rests against the cover ring 4.

In the embodiment according to Fig. 3, the double fold 3 and the adjacent part of the cover ring 4 are not in contact with the funnel crack 6*

According to Fig. 4, an outer edge 16 of the tri-ring 6 engages directly in the bead 15 of the fuselage 2. This results in a considerable saving of material for the funnel ring 6. At the transition from the funnel section 9 to the inner section 10 of the funnel ring 6, the connecting bead 12 is again provided.

In the embodiment according to Fig. 5, the funnel ring 6 consists of an outer ring section 17 of the cover ring 4 extending inwards from the body 2 and an inner ring section 18 of the cover ring 4 extending outwards from the inner end 13 of the cover ring 4 to the outer ring section 17. The inner ring section 18 initially forms, as shown in Fig. 5 with solid lines, a

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cylindrical j downwardly extending extension of the inner end region 11 of the cover ring 4* The inner ring section 18 is subsequently flanged outwards around the inner end 13 into the end position shown in dashed lines in Fig. 5, in which an outer end 19 of the inner ring section 18 is arranged behind an inner end 20 of the outer ring section 17. As a result, the outer end 19 is not in the way of the flowing out filling material.

In the embodiment according to Fig. 6, the funnel ring 6 is formed in one piece with the cover ring 4. The funnel ring 6 initially forms, as shown in Fig. 6 with solid lines, a cylindrical, downwardly extending continuation of the inner end region 11 of the cover ring 4. In a subsequent operation, the funnel ring 6 is flanged outwards around the inner end 13 of the funnel ring 6 until it comes into contact with the body 2, as is indicated in dashed lines in Fig. 6.

The embodiment examples according to Figs. 7 to 9 relate in principle to a set of cover ring 4 and a press-in cover (not shown) according to US patent specification 2,775,362. It is therefore unnecessary to go into more detail about this known closure system in the context of the present description.

In Fig. 7, an inner end 22 of the funnel ring 6 extends under an outer roll 23 of the cover ring 4. At an inner edge 24 of a circumferential sealing bead 25 of the cover ring 4, the funnel section 9 of the funnel ring 6 is angled slightly upwards so that the funnel ring 6 does not extend too deeply into the rump 2 and would then lead to avoidable loss of space.

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In the embodiment according to Fig. 8, a known agitator or mixing system, not shown in detail, is to be coupled to the cover ring 4 instead of the Eirid back cover.

For this purpose, the cover ring 4 has an annular locking surface 26 for locking claws 27 of the agitator at the bottom of the sealing bead 25. The inner end 22 of the funnel ring 6 extends to an outer end of the locking surface 26 and rests there preferably in an axial direction against the underside of the sealing bead 25 in a resilient manner. In this way, sufficient sealing against the filling material is achieved between the inner end 22 and the sealing bead 25.

As mentioned, each agitator usually has two diametrically opposed locking claws 27. Each locking claw 27 is pivotable by a shaft 28 about its longitudinal axis 29 into and out of contact with the locking surface 26 and can be moved in the direction of the longitudinal axis 29 against the force of a spring.

In the embodiment according to Fig. 9, the funnel ring 6 has a step 30 in a central region of the funnel section 9 that is at least approximately perpendicular to the longitudinal axis of the packaging container 1 as a bearing for the locking claws 27. The step 30 rests on the underside of the sealing bead 25 of the lid ring 4. The funnel ring 6 runs inwards from the step 30 to its inner end 22 in a similar manner to Fig. 7.

The funnel ring 6 according to Fig. 7 to 9 can be shortened in its outer area and not suspended in the double fold 3. The funnel ring 6 would then be e.g. according to

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Fig. 3 or 4 find its outer bearing on the hull 2 or in the bead 15 of the hull 2.

The guide pins according to Figs. 10 and 11 use in principle a closure system consisting of a cover ring 4 and a push-in cover (not shown) in accordance with the German utility model G 81 19 557.5.

According to Figs. 10 and 11, the funnel ring 6 is formed in one piece with the lid ring 4.

In Fig. 10, the funnel ring 6 has an annular locking surface 31 for the locking claws 27 of the agitator in a central region.

In the embodiment according to Fig. 11, either no agitator is used or locking claws are used with an external inclination adapted to the slope of the funnel ring.

Claims (1)

01 PROTECTIVE SYSTEM PRÜC HS 1. Packaging container (1) with a body (2) and a lid ring (4) connected to the outside of the body (2), wherein an opening (5) of the lid ring (4) can be closed by a press-in lid, characterized in that a funnel ring (6) extending from the body (2) to the opening (5) enables the residual emptying of the packaging container (1). 2. Packaging container according to claim 1, characterized in that an outer edge (8) of the funnel ring (6) is held between the body (2) and the lid ring (4). -2-PK/Hu Bank account: NÖRD/LB, NL Bad Gandersheim (bank code 2?8 557 21)? Mon!-Wr.'22^18 &W ■ Postgiro account: PostgirOamt Hannover (bank code 2501ÖÖ 30), account no. 66715 &mdash;2&mdash; 01 3· Packaging container according to claim 1 _S characterized in < indicates that an outer edge (I4ji6) of the funnel 'S rings (6) into an outwardly extending bead <j (15) of the hull (2). ■ 05 4. Packaging container according to claim 3, characterized I draws that the outer edge (14;16) under } outwardly directed spring preload into the bead 1 (15) intervenes. &Rgr; ' 5. Packaging container according to one of claims 1 to 4, '■ -&iacgr;&ogr; characterized in that an outer portion (7) _f of the funnel ring (6) is coaxial with and directly adjacent to : the fuselage (2), and that the outer section (7) merges into a funnel section (9) of the funnel ring 15 (6) extending towards the opening (5). 6. Packaging container according to one of claims 1 to 5, characterized in that the funnel ring (6) has a ) extending from the hull (2) to the opening (5) extending funnel section (9), and d$ß ₍ i 20 the funnel section (9) is connected internally to an inner section (10) of the funnel ring (6), wherein the inner portion (10) surrounds an inner end region (11) of the cover ring (4) on the outside, 7* Packaging container according to claim 6, characterized in that between the funnel section (9) and the inner section (10) of the funnel ring (6) a* connecting bead (12) is provided, which extends inwards under an inner end (13) of the lid ring (4). Oi 8. Packaging container according to one of claims 1» 3 or 4, characterized in that the funnel ring (6) is formed in one piece with the lid ring (4)* and that the funnel ring (6) extends from an inner end (13) of the lid ring (4) outwards to the body (2). 9« Packaging container according to one of claims 1, 3 or 4, characterized in that the funnel ring (6) consists of an outer ring section (17) of the lid ring (4) extending inwards from the body (2) and an inner ring section (18) of the lid ring (4) extending outwards from an inner end (13) of the lid ring (4) to the outer ring section (17). 10. Packaging container according to claim 9, characterized in that an outer end (19) of the inner ring portion (18) is arranged behind an inner end (20) of the outer ring portion (17). 11. Packaging container according to one of claims 1 to 5, characterized in that an inner end (22) of the funnel ring (6) extends under an external roll (23) at the inner end of the lid ring (4). 12. Packaging container according to claim 11, characterized in that the funnel ring (6) has in a central region a step (30) which is at least approximately perpendicular to the longitudinal axis of the packaging container as a counter bearing for locking claws (27) of an agitator. 13. Packaging container according to one of claims 1 to 5, characterized in that the lid ring (4) is fit i M i i I · its inner end has an outer roll (23) and in a central region an annular locking surface (26) for locking claws (27) of an agitator, and that an inner end (22) of the trionter ring (6) extends to an outer end of the locking surface (26). 14. Packaging container according to one of claims 1 to 5, characterized in that the lid ring (4) has an external roll (23) at its inner end, and that the funnel ring (6) is formed in one piece with the lid ring (4)« 15. Packaging container according to claim 14, characterized in that the funnel ring (6) has an annular locking surface (31) for locking claws (27) of an agitator in a central region.