DE8908076U1 - Container in the form of a bucket or can - Google Patents

Description

Dipl.-Ing. W. Dahike:
Dipl.-lng. H.-J. Llppert
*' Prof. Dr. E.-W. Stachow

Patent attorneys

. Frankenforater Strasse 135-137

5060 Berglsch Gladbach 1

Jokey-Plastik GmbH & Co. KG
S272 h'ipperfurth

ia. For» eir.as Eimers «<fer eig g. r

The invention relates to a container in the form of a

The container can be fastened tightly to the inside of the container and is connected to a ring which is inserted into the container mouth and which protrudes into the container interior with a new V-shaped part.

The ring arranged in the container mouth gives the upper part of the container wall sufficient rigidity so that the container wall cannot easily deform in this area due to impact or tensile forces and the lid closes tightly. On the other hand, the V-shaped cross-section of the ring on its upper, inward-sloping surface allows liquid that has escaped from the container over the ring to drain cleanly and on its lower, outward-sloping surface prevents the formation of liquid nests. This shape of the ring is particularly advantageous for viscous liquids such as paint. Furthermore, the lid can center itself in the V-shaped ring, slide in easily and be attached to form a good seal by pressing on. The container wall, the lid and the ring are preferably made of plastic.

In known containers of the type mentioned, the ring is attached to the container wall either by welding or by clipping on.

» &igr;

&bull; Hit

l A construction in which the ring is held on the inside of the container wall by being pushed on is known from UO 88/05751. For this purpose, the container wall has two ring-shaped rims on its inside, around which the 5 ring-shaped free ends of the V-shaped ring grip. f. Due to this design, the ring can be inserted into the container. terraüfidung and by snapping over the

%_ Borders are attached to the inside of the container wall.

w ^-10

I However, inserting the ring does not provide an optimal

I aal strength of the ring is achieved. If the container is subjected to impact or tensile stress, the ring can become completely or partially detached from the edges, so that the lid and T- 15 ring no longer seal the container. In order to achieve a good seal even if no force is applied,

In order to be able to do this, tight tolerances are required during the manufacture of the ring so that the ring can be precisely

f; rims on the inside of the container wall. This entails ^a higher outlay in the manufacture ^of the rings and a greater waste, which is also reflected in the manufacturing costs. The disadvantages mentioned apply essentially to all designs in which the ring is attached to the ^container mouth by being ^pushed on or inserted.
%

t The welding of the ring to the container wall,

which is usually done by ultrasonic welding, requires some technical effort and associated costs.

The invention is based on the object of creating a container of the type mentioned at the beginning, which has an optimal strength and rigidity in its upper region and thus an optimal sealing of the thickness and ring even under impact or tensile stress and can be manufactured with a relatively low expenditure, e.g. in the injection molding process.

The object is achieved according to the invention in that an internal thread is arranged on the container wall in the area of the container end, into which the ring engages with a corresponding external thread.

Due to the design according to the invention, the ring can be easily screwed into the container mouth. Screwing can be done by hand or with the help of a machine. The threaded connection between the ring and the container wall ensures an optimal bond that is not easily reduced even in the event of major impacts or tensile forces. The threaded connection also enables a better seal to be achieved between the ring and the container wall, even under heavier loads. Due to the improved strength of the ring screwed into the container mouth, a securely sealed fit of the lid on the inside of the container is also achieved. The double wall thickness also increases the rigidity of the upper part of the container.

The internal thread can be formed as a recessed thread in the container wall.

25

It can preferably also be formed as a protruding thread in one piece on the container wall. For example, it can be manufactured together with the container in an injection molding process in one tool.

30

In a preferred embodiment, the internal thread is

distance from the upper edge of the container wall. The external thread of the ring is then

(a lower skirt of the ring extending below the V-shaped part. Due to this arrangement, the ring can be easily inserted into the container rim and then screwed to the container wall in a centered position. The lower

&igr; ·

Attaching the thread allows the V-shaped part of the ring to be positioned at the top of the container mouth. This allows the inwardly projecting part of the ring and the lid to be conveniently positioned relatively high on the top edge of the container. In addition, the ring can fit tightly against the top edge of the container.

On the other hand, the internal thread can also extend to the upper edge of the container wall.

This design is intended in particular when the external thread of the ring is not only on a lower skirt extending below the V-shaped part,

but also at a point above the V-shaped part 15

extending upper skirt of the ring. This further increases the bond on both sides of the V-shaped part of the ring.

The internal thread of the container wall and the external thread of the ring can be closed.

On the other hand, either the internal thread of the container wall or the external thread of the ring can also be segmented

shaped.
25

In a preferred embodiment of the invention, the upper edge of the container wall has an inward-curving rim that engages in a corresponding annular groove on the outside of the ring. The snap-on edge of the container thus formed prevents the ring from twisting off the edge of the container wall. This in turn helps to prevent the ring from twisting and to seal it better.

Furthermore, the ring can have a part that extends over the upper edge of the container wall. This TsI1 prevents possible hedging of the upper container wall

outwards, which could lead to the ring becoming detached from the container mouth.

For practical purposes, a ring-shaped nose can be formed on the container wall below the internal thread.

Opposite this nose, an annular nose formed on the ring can be arranged so that both noses rest against each other when the ring is screwed tight. The increased contact surface between the ring and the container wall improves the sealing effect. The nose formed on the bottom of the ring also allows better centering and insertion of the ring when it is attached to the container mouth. Both noses prevent the medium in the container from penetrating the thread.

In a preferred embodiment of the ring, the outer diameter of the nose formed on the ring is smaller than the inner diameter of the upper part of the ring. Due to this construction, rings can easily be stacked on top of one another in the form of a bundle by the nose of one ring engaging the upper opening of the ring below.

The wall thickness of the container in the area of the internal thread can be kept smaller than the remaining area of the container wall. This avoids sink marks in areas of thicker wall thickness, such as those that occur when the material cools down after injection molding.

An embodiment of the invention is described in more detail below with reference to the drawing. In the drawing

3g show:

Fig. 1 a section through an upper part of the container old king ur.d inserted therein » lid and

H "·

»camouflage

Fig. 2 shows a section through a bundle of rings stacked on top of each other.

As can be seen from Fig. 1, the container shown there has a ring 1 which is arranged on the inside of the container wall 2 in the container mouth. A lid 3 is tightly fastened in the opening of the ring 1.

The ring 1 has a V-shaped part 4 that protrudes into the interior of the container. Thus, the part 4 of the ring 1 that points into the interior of the container has an upper, inwardly inclined surface 5 and a lower outwardly inclined surface 6, on which the container medium, e.g.

Color can run off cleanly.

Below the V-shaped part 4 protruding into the interior of the container, the ring 1 has an apron 7 which has an external thread 8.

20

The external thread 8 of the apron 7 of the ring 1 engages in

a corresponding internal thread of the container wall 2. The external thread 8 of the apron 7 and the internal thread of the container wall 2 are formed as protruding threads in one piece on the outside of the apron 7 and the inside of the container wall 2. The internal thread extends approximately over the length of the external thread 8 of the ring 1. It is thus at a corresponding distance from the upper edge of the container wall 2

QQ arranged.

Above the V-shaped part protruding into the interior of the container, the ring 1 also has an apron 9 which is less high than the lower apron 7. The upper apron 9 rests against the inside of the upper part of the container wall 2. On its outside, it has an annular groove IG into which a rim Π formed on the upper edge of the container wall 2 engages. When inserting

Screwing the ring 1 into the container wall 2 allows the bord 10 to snap into the ring groove 11. The upper part of the ring 1 is thus firmly seated on the edge of the container wall 2.

The upper apron 9 of the ring 1 also has a part 12 which overlaps the edge of the container wall 2 and is opposite the annular groove 10. This part 12 prevents the edge of the container wall 2 from being pushed away, which could cause the snap closure formed by the rim 11 and the annular groove 10 to come loose.

Below the internal thread of the container wall 2, an annular nose 13 is formed on the container wall 2. The lower side of the nose 13 is inclined so that it forms an angle of about 3u° with the container wall 2. The increased wall thickness in the area of the nose 13 ensures good strength and stability of the container wall 2 in this area on which the internal thread is located.

The rabbit 13 opposite 1 is on the lower apron

7 of the ring 1, an annular nose 14 is formed which projects downwards over the external thread 8. The two noses 13 and 14 rest against one another so that they protect the ₌₆ thread and increase the sealing effect of the ring 1.

The outside diameter of the nose 14 formed on the ring 1 is slightly smaller than the inside diameter of the upper skirt 9 of the ring 1. This construction allows several rings 1 to be stacked on top of each other in a stable manner, as the nose 14 of a ring 1 engages the opening of the skirt 9 of a ring 1 located underneath. Two rings 1 of a $o1-

3g of the container are shown 1n Mg. 2.

·

As can be seen from Fig. 1, the cover 3 with a known shape is tightly inserted into the opening of the ring 1.

DIpl.-ing. W. Dahlkej : ·| : : ""·'.'·:": Dipl.-lng. H.-J. Lippert,/ ,·, * &idigr;,.&iacgr; \ ' :&ldquor;: ;;: Prof. Dr. E.-W. Stachow

Patent Attorneys Frankmfofster Straße 135-137 .... e/tfh

5060 Berglsch Gladbach 1 29 June 1989 S/Kb

Jokey-Pl«st1k 6abH i Co. KG 5272 MipperfOrth

Reference symbols

'■ ' ■ &mdash;'&mdash;&mdash;'&mdash;**>

1 M Rg

2 Sefeälterwand

3 lids

4 V-shaped part 15

5 Inward inclined surface

6 outwardly inclined surface

7 Chute

8 external thread

9 Apron 10 Ring groove

11 Board

12 General part

13 ring-shaped nose

14 ring-shaped nose

Claims (13)

Dlpl.-lng. W. Dahlkef: 'j . :"&Ggr;·" . \'\Ci Dipl.-lng. H.-J. Upper?·.' »· ^f ., ^% i
Prof. Dr. E.-W. Stachow 10 |; Patent attorneys &Aacgr; ' ₁ Frankenforster Straße 135-137 29 June 1989 S/Kb 50S0 Bergisch Gladbach 1 Jokey-Plastik GmbH ft. Co. K6
5272 Expectations ^C 1. Container in the form of a bucket or a can with a lid that can be tightly fastened to the inside of the container and with a ring arranged in the mouth of the container that is provided with a V-shaped protrudes into the interior of the container, characterized in that an internal thread is arranged on the container wall (2) in the region of the container mouth, into which the ring (1) engages with a corresponding external thread (18). 2. Container according to claim 1, characterized in that the internal thread is recessed into the container wall (C) as a thread. 2 B shaped 1st. 3. Container according to claim 1, characterized in that the internal thread is formed as a protruding thread in five parts on the container wall (2). 4. Container according to claim 3, characterized in that the internal thread is arranged at a distance from the upper edge of the container wall (2) and the external thread (B) of the ring (1) is arranged on a lower skirt (7) of the ring (1) located below the V-shaped part (4). &bull; < t Il I f t · · t &igr; < i &bull; I &bull; I J &bull;&igr;»&igr; , 11
&igr; arranged 1st. 5. Container according to one of claims 1 to 3, characterized in that the internal thread extends to the upper edge of the container wall (2). 6. Container according to claim 5, characterized in that the external thread (S) of the ring (1) is arranged on an upper apron (9) extending above the V-shaped part (4) and on a lower apron (7) of the ring (1) extending below the V-shaped part (4). 7. Container according to one of claims 1 to 6, d a- characterized in that the internal thread of the container wall (2) and the external thread (8) of the ring (1) are closed. S. Container according to one of claims 1 to 6 - characterized in that either the internal thread of the container wall (2) or the external thread (8) of the ring (1) is segment-shaped. 9. container according to one of claims 1 to 7, characterized in that the upper edge of the container wall (2) has an inwardly facing rim (11) which engages in a corresponding annular groove (10) on the outside of the ring (1). 10. Container according to one of claims 1 to 9, characterized in that the ring (1) has a part (12) which extends over the upper edge of the container wall (2). 11. Container according to one of claims 3 to 10, characterized in that an annular nose (13) is formed on the container wall (2) below the internal thread. 12. Container according to one of claims 4 to 11, characterized in that an annular nose (14) is formed on the ring (1) below the external thread (8). 13. Container according to claim 12, characterized in that the outer diameter of the nose (14) formed on the ring (1) is smaller than or equal to the inner diameter of the upper part of the ring (1).