DE4306976A1 - Injection-moulded plastic bucket - Google Patents

Abstract

The invention relates to an injection-moulded plastic bucket according to Patent Application P 4230788.0, in particular an injection-moulded, inward-edge plastic bucket, having a bottom, a wall which widens from said bottom towards the upper edge, and a carrying handle, receiving elements for a carrying handle being provided in the region of the upper edge of the wall at diametrically opposed points, and the upper edge of the wall serving at the same time to receive a lid in an engaging and sealing manner. By means of the invention, an injection-moulded, integral, inward-edge plastic bucket with an integrally cast-on carrying handle is to be provided, which allows secure and sealed attachment of a lid, and in which the lid can be removed only after removal of the tamper-indicating closure. The object on which the invention is based is achieved in that a circumferential edge (9) directed vertically downwards is moulded onto a web (8) with slight spacing below the upper edge (3) of the wall (2) and with spacing from the wall (2), in that the circumferential edge (9) is provided with a circumferential depression (11) to receive the edge (6) of the lid, and in that the web (8) of the circumferential edge (9) is recessed at least at one point on the circumference of the bucket, forming a gripping depression (11) which is covered by a flap (12) attached to the circumferential edge (9) when the lid (4) is fitted on. <IMAGE>

Description

The invention relates to an injection molded plastic bucket according to patent application P 42 30 788.0, in particular one injection molded single-rim plastic bucket, with a bottom, a wall that widens from this towards the top and a carrying handle, wherein in the area of the upper edge Wall at diametrically opposite locations are provided for a carry handle and the top of the Wall at the same time for the locking and sealing reception of a Lid serves.

Plastic buckets of the type mentioned are mostly in Mass produced. If the carrying handle, separately from wire or a plastic, for example manufactured, their assembly on the plastic bucket requires one considerable effort from the additionally required Ironing process and the necessary ironing machines comes from.

For this reason, the aim is to carry the handle in in a single operation together with the bucket put. This is from the German publication 35 40 059 known a bucket with a hinged handle, which means Buttons on the handle ends on opposite sides of the Bucket is held in integrally molded pins. At so-called two-bucket, in which the inner upper edge to accommodate the sealing lip of a lid and the outer top  Edge with a locking lug serves to snap the lid edge, the outer upper edge of the bucket can open simultaneously take the spigot be used. This is with one-bucket however not readily possible, so that special pre Instructions for the durable arrangement of the pins ge must be met, the effort in the production of the Increase bucket.

Furthermore, it is common to use the bucket at the same time Sales packaging can be used with a so-called Tamper evident closure. This originality closure is formed on the outer edge of the bucket in such a way that a cover that has been snapped in only then can be grasped the edge of its lid can be removed within a recessed grip can, if the Origi Nality lock by breaking predetermined breaking points has been removed. This allows the buyer to be beyond doubt can be recognized whether the bucket is still in its original condition or whether due to the lack of a tamper-evident seal it can be expected that the one to be expected according to the label Content no longer meets expectations.

In the single-bucket described above, in which the upper edge for latching and sealing reception of the lid serves the additional arrangement of a Tamper-evident closure as difficult, if not as un possible. In addition, special precautions must be taken in this case be taken to safely prevent the lid edge not in a place outside the tamper-evident seal can be detected. In this case the originality would be closure to be ineffective.

The invention is therefore based on the object injection molded one-piece single-rim plastic bucket with integrally molded handle to create the one safe and tight fastening of a lid allowed and at  the lid only after removing the originality closure can be removed.

The problem underlying the invention is at an injection molded single rim plastic bucket at the beginning mentioned type in that a short distance below perpendicular to a bridge halfway along the top of the wall downward peripheral edge at a distance from the wall is that the circumferential edge with a circumferential Well for receiving the edge of the lid is provided and that the web of the peripheral edge at at least one point of the The circumference of the bucket, forming a recessed grip, is pulled down is that with the lid on by a rotating one Edge fastened tab is covered.

With this solution according to the invention, one-sided art becomes fabric bucket created due to its simple structure can be produced particularly inexpensively, but in the it is nevertheless guaranteed that on the one hand the associated one Lid flush with the outer contour on the upper edge of the wall can be put on and on the other hand in a simple way Tamper-evident seal can be attached. Besides, will by the circumferential which is then integrally formed on the web Edge a significant stiffening of the upper area of the Plastic bucket reached by putting the lid on is much easier.

In continuation of the invention, the upper edge of the wall is open the outside with an edge bead for snapping the Cover edge provided so that the lid with the form-fitting Plastic buckets can be connected and an unintended Loosening the lid is avoided.

For this purpose, it is useful if the edge of the lid on it Has a locking bead on the inside, which in the attached Condition of the lid engages behind the bead, creating a particularly firm and secure positive connection between  the lid and the top edge and thus with the plastic bucket is reached.

To avoid sharp edges and to achieve a pleasing outer shape of the lid when attached the edge of the lid widens following the locking bead conical and ends in a cylindrical collar. Through this Further development of the invention will also increase the mechanical stability of the lid itself and the plastic bucket reached when the lid is on. That means, that the cover after removing the trained as a tab Tamper-evident closure removed as often as required and again can be put on without worsening the fear mechanical stability.

To remove the cover if there is still one It is more difficult to tamper with the tamper-evident seal useful if the outer contour of the federal government essentially corresponds to that of the peripheral edge, it being at round plastic buckets is advantageous if the outer Diameter of the collar is the diameter of the peripheral edge on the wall.

A further improvement is achieved when the depth of the Deepening in the circumferential edge of the thickness of the federal government Lid corresponds. So that when the lid is on so closed outer contour created that it is almost is impossible, or only by partial damage to the Lid to remove it without first closing the tab remove.

In continuation of the invention, the collar of the lid is included a lip widening its outer surface, wherein the depression in the peripheral edge from a recess and a subsequent annular groove into which the collar of the Lid and the associated lip can be inserted flush. In order to  becomes a particularly airtight connection between the lid and created the bucket and pulling the lid off Grasping its lower margin outside of originality lock excluded.

It is also useful if the tab, which the Concealed grip, is formed as part of the edge of the in the area of the recessed grip by a small amount to the outside pulled and separated from this and with predetermined breaking points this is connected. It can be used to make art additional steps to attach the Tamper-evident closure is omitted, since it is sprayed shapes of the bucket can be molded on. The lid can because after filling the bucket you just put it on, with the tamper-evident seal in operation occurs.

The invention is intended to be based on an exemplary embodiment are explained in more detail. Show in the accompanying drawings

Fig. 1 is a side view of the plastic bucket according to the invention with a partial section,

Fig. 2 is a plan view of an inventive plastic bucket,

Fig. 3 shows a section through a plastic bucket along the line III-III in Fig. 2

Fig. 4 is an enlarged partial view of the plastic bucket with a tamper-evident seal, and

Fig. 5 is a section through the plastic bucket along the line VV in Fig. 2.

As can be seen from FIGS. 1 and 2, the plastic bucket has an essentially cylindrical basic shape and has a base 1 and a wall 2 which widens slightly conically towards the top, at the upper end of which an upper edge 3 is formed for receiving a cover 4 . The upper edge 3 of the wall 2 is provided on the outside with an edge bead 5 for the latching reception of the lid 4 , so that it can be positively connected to the plastic bucket and unintentional loosening can be avoided. For this purpose, the lid edge 6 is provided on its inside with a locking bead 7 which, when the lid 4 is in place, engages behind the edge bead 5 , as a result of which a particularly firm and secure positive connection between the lid 4 and the upper edge 3 and thus with the Plastic bucket is reached.

At a short distance below the upper edge 3 , a circumferential edge 9 directed vertically downward is formed on a web 8 at a distance from the wall. ( Fig. 3) This peripheral edge 9 is further provided with a peripheral recess 10 for receiving the lid edge 6 . To form a recessed grip 11 , the web 8 of the circumferential edge 9 is pulled down at at least one point on the circumference of the bucket, which is covered by a tab 12 attached to the circumferential edge 9 when the cover 4 is placed on. ( Fig. 4, 5) This tab 12 serves as a tamper-evident seal and is therefore designed as part of the peripheral edge 9 . For this purpose, the edge 9 is pulled outward in the region of the recessed grip 11 by a small amount and separated from it and connected to it by predetermined breaking points 13 . This means that additional steps for attaching the tamper-evident seal can be omitted when manufacturing the plastic bucket, since this can be easily molded on when the bucket is injection molded. The lid 4 can then simply be put on after the bucket has been filled, the tamper-evident closure simultaneously functioning.

In order to be able to fasten a carrying handle 14 to the plastic bucket, the peripheral edge 9 is pulled down somewhat at two diametrically opposite points and is provided in this area with a pin 15 for receiving the carrying handle 14 . With this bracket arrangement, it is easily possible to manufacture the plastic bucket and the bracket 14 in one piece in a single operation.

To avoid sharp edges and to achieve a pleasing outer shape of the lid, the lid edge 6 widens conically after the locking bead 5 and runs into a cylindrical collar 16 , the depth of the depression 10 in the peripheral edge 9 of the thickness of the federal government 16 of the lid 4 corresponds. This creates a largely closed outer contour when the cover 4 is in place, so that it is almost impossible to remove it without first removing the tab.

In order to create a particularly airtight connection between the lid 4 and the bucket and to prevent the lid from being pulled off by grasping its lower edge outside the tamper-evident closure, the collar 16 of the lid 4 is provided with an additional lip 17 which widens the outer surface thereof. To accommodate the lip 17 , the recess 10 in the peripheral edge 9 consists of a recess 18 and a closing annular groove 19 , in which the collar 16 of the cover 4 and the associated lip 17 can be inserted flush.

Thus, the removal of the cover 4 is still considerably more difficult with the tamper-evident seal still present, since after the cover 4 has been placed on, a completely closed outer contour is formed, since the edge of the cover 6 can not be grasped at any point. It also seals the interior of the plastic bucket even better.

The advantages of this single-edged plastic bucket according to the invention can be seen in the fact that, owing to its simple construction, it can be manufactured particularly cost-effectively, but it is nevertheless ensured that, on the one hand, the associated cover 4 can be placed flush with the outer contour on the upper edge 3 of the wall 2 and on the other hand, a tamper-evident seal can be attached in a simple manner. In addition, a considerable stiffening of the upper region of the plastic bucket is achieved by the peripheral edge 9 which is subsequently molded onto the web 8 .

Reference list

1 floor
2 wall
3 top margin
4 lids
5 edge bead
6 lid rim
7 locking bead
8 bridge
9 peripheral edge
10 all-round depression
11 recessed grip
12 tab
13 predetermined breaking point
14 carrying handle
15 cones
16 fret
17 lip
18 recess
19 ring groove.

Claims (9)

1. Injection-molded plastic bucket according to patent application P 42 30 788.0, in particular injection-molded single-edge plastic material bucket, with a base, a wall that widens from this towards the upper edge and a carrying handle articulated on two sides, with diametrically opposite points in the area of the upper edge of the wall Recording elements are provided for a carrying handle and the upper edge of the wall serves at the same time for the latching and sealing reception of a cover, characterized in that a short distance below the upper edge ( 3 ) of the wall ( 2 ) on a web ( 8 ) is perpendicular downward peripheral edge ( 9 ) is formed at a distance from the wall ( 2 ), that the peripheral edge ( 9 ) is provided with a peripheral recess ( 10 ) for receiving the lid edge ( 6 ) and that the web ( 8 ) of the peripheral Edge ( 9 ) is pulled down at at least one point on the circumference of the bucket, forming a recessed grip ( 11 ), which is seen on The last cover ( 4 ) is covered by a tab ( 12 ) attached to the peripheral edge ( 9 ). 2. Injection molded plastic bucket according to claim 1, characterized in that the upper edge ( 3 ) of the wall ( 2 ) on the outside with an edge bead ( 5 ) for latching reception of the lid edge ( 6 ) is provided. 3. Injection molded plastic bucket according to claim 1 and 2, characterized in that the lid edge ( 6 ) has on its inside a locking bead ( 7 ) which engages behind the edge bead ( 5 ) in the attached state of the lid ( 4 ). 4. Injection molded plastic bucket according to claims 1 to 3, characterized in that the lid edge ( 6 ) widens conically following the locking bead ( 7 ) and ends in a cylindrical collar ( 16 ). 5. Injection molded plastic bucket according to claim 1 to 4, characterized in that the outer contour of the collar ( 16 ) corresponds substantially to that of the peripheral edge ( 9 ). 6. Injection molded plastic bucket according to claim 5, characterized in that the outer diameter of the collar ( 16 ) corresponds to the diameter of the circumferential edge ( 9 ) on the wall ( 2 ). 7. Injection molded plastic bucket according to claims 1 to 6, characterized in that the depth of the recess ( 10 ) in the peripheral edge ( 9 ) corresponds to the thickness of the collar ( 16 ) of the lid ( 2 ). 8. Injection molded plastic bucket according to claim 7, characterized in that the collar ( 16 ) of the lid ( 4 ) is provided with a lip ( 17 ) widening its outer surface, that the depression ( 10 ) in the peripheral edge ( 9 ) from a There is a recess ( 18 ) and a subsequent annular groove ( 19 ) into which the collar ( 16 ) of the cover ( 4 ) and the associated lip ( 17 ) can be inserted flush. 9. Injection molded plastic bucket according to one of claims 1 to 8, characterized in that the tab ( 12 ), which covers the recessed grip ( 11 ), is formed as part of the edge ( 9 ) which in the region of the recessed grip ( 11 ) around small amount is pulled outwards and separated from it and connected to it by predetermined breaking points ( 13 ).