DE2313811A1 - MOLDED CONTAINER IN PLASTIC - Google Patents

Description

EIKENBERG & BRÜMMERSTEDT PATENT LAWYERS IN HANOVER

Vulcan Plastics Inc. 246/69

Plastic molded container

The invention relates to a plastic-molded, open-topped container with a bead or a flange-like profile at the upper end, which can be received by a U-shaped channel on the outer edge of a lid for producing a tight seal, the U-shaped channel through an inner wall and an outer wall concentric thereto and an upper connecting part for the walls is formed.

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With such containers the lid can be rait ' its annular channel so engages the bead bring that a tight seal is achieved without the need for additional means such as a metal ring seal

j are needed. The U-shaped channel is relative dimensioned deep so that the upper edge of the container can reach very far into the channel and thus a good seal guaranteed. Often the top of the container, the bead or the U-shaped channel and any locking means dimensioned so that a wall of the U-shaped channel must be cut off or slit at the edge if the Interference between the lid and the container is to be eliminated, to remove the contents of the container. With other constructions become tools such as a screwdriver or others Special instruments are needed to separate the container and lid from one another to separate. .

Ideally, the closures of the containers are arranged so that they can only be forcibly in the manner described above Ways can be removed, however, there are in practice numerous releasable closures or lids which can be opened inadvertently during transport, so that the contents of the container can emerge. This inadvertent loosening of the lid stirs mostly because the containers are moved against each other during transport so that the lid or part of a Container is located under the lower edge of the lid of another Container hooks, whereby the container gets into a tilted position. If the containers are then exposed to an impact, this can result

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caused upward force cause the j The lid pops off the container.

This problem can be solved in many ways, for example by using a sealing Fastening ring, however, are the Advantages of a lock that can only be produced by snapping on given up. There is therefore still a need for a tight, snap-on lock that is not at the Can unintentionally loosen.

Solving the above problem is made difficult by the fact that molded plastic containers are generally compliant and any yielding of the side walls of the container tends to weaken the sealing engagement between the closure and the container. Although one kennte additional reinforcement and dimensional stability create characterized in that a number of Unterstutzungsrippen or and flange are provided on the container side wall. · However, such a solution is uneconomical because additional plastic material is needed for the production of the hip, so that in the final ¹ result the product is no longer competitive. Furthermore, it has been shown that the users of containers require or at least wish that the maximum available space for applying printing material for decorative and / or advertising purposes is available on the side wall. However, the available space would be increased by stiffening ribs on the side wall of the container

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'considerably reduced. If such support ribs have been provided, they have been designed so that they run approximately perpendicular to the side wall of the container. ; In such an arrangement, particularly when the reinforcing ribs are intended to act as a drip AUOH barrier, take place increased dust deposit on these ribs and the j dust and / or the drops of Behalterinhalts can be very difficult to remove then ^{. This aspect is particularly important when the container contains food.

The invention is based on the object of creating a container with a lid made of plastic, in which an unintentional detachment of the lid from the container during transport or storage is avoided, which can be produced without additional material requirements and increased expenditure of time and which is improved Has rigidity and dimensional stability without significantly reducing the space available on the side wall for applying printing material . ■ ■ '

The object set is achieved according to the invention in that locking means on the inside of the outer wall are provided to engage the bead when the container is closed, but a solution of the lid, and that the container with a drip ring and is provided with a push ring, which are shaped and arranged in such a way that when several containers are stacked next to one another

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; a distance between the containers is maintained and the lids prevent them from accidentally coming off j mutual contact between the containers is ensured.

In a practical embodiment of the invention, the j drip ring is arranged only so far below the bead and below the ■■ lower edge of the outer wall of the Deokels that the outer edge of the other container not Deokels

; the bottom edge of the outer wall can hook when the bumper ring is in contact with the other container.

It is advantageous that the thrust ring is spaced below of the drip ring, and from an upper, sioh , wall extending outward from the container wall and one : sioh adjoining it, running about eenkreoht downwards End wall consists, the end wall serving as a means of maintaining the distance a to the other container.

By sohräg downwardly inclined surfaces of the drip-i ring and the thrust ring sioh results in a loan option the cleaning. The arrangement of the rings increases the rigidity and dimensional stability of the container, and their dimensioning is so that the container can be manufactured without additional material requirements.

The invention is explained in more detail below with reference to an exemplary embodiment shown in the drawing.

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In the drawing "mean:

Pig. 1 a side view of an invention

according to trained container and lid;

Pig. 2 is a bottom plan view of the in Pig. 1 dar-

provided container;

Pig. 3 is a bottom plan view of the in Pig. 1 represents

provided lid;

Pig. 4 shows a partial section for illustration

the fastening of the lid on the container;

Pig. 5 is a partially sectioned side view

of two containers stacked on top of each other and .

Pig. 6 is a side view of several containers

to show how reinforcement rings attached to the container work together, to prevent accidental loosening of the container lid.

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In the figures, the same parts are given the same reference numbers proven.

Pig. 1 shows a plastic molded, o "ben open container 10 with a deodorant 11 which forms a tight seal for the container 10". The container 10 ″ has a bottom wall 12 and a side wall 13 which extends upwardly from this and which is slightly conical so that the larger durometer is located at the upper open end a Arre tie rungsf lansoh cooperates on the outer wall 24 of the 'lid 11, 27, will be explained in more detail hereinafter round is. to the side wall 13 of the container 10, a drip \ extends in! predetermined distance below the bead 14 ring 15 · This drop ring! 15 extends - as can be seen in Pig. 4 I - from the side wall 13 nao'a outside and at an angle jnaoh below, so that it forms an inclined surface

j Drip ring 15 can have a solid triangular cross-section.

point, however, for reasons explained in more detail below, it is expedient and advantageous to use the ring 15 only as a simple, outwardly extending and angled narrow ones To train splash.

At a distance below the ring 15 there is a shock ring 16, which according to Pig. 2 and 4 consists of an upper wall j extending outwards and at an angle near the bottom and an adjoining wall 18 which is more inclined downwards and is the largest at its lower end.

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[Diameter of the ring forms. An open cavity is formed between the bumper ring 16 and the side wall 13, in which a number of radially extending spacer ribs 21 are arranged. These spacer ribs 21 provide additional stiffening of the thrust ring 16 and also prevent the upper edge of another container from falling into this cavity ^. long if several containers are nested inside one another. A wire hanger 20 for carrying is arranged on the container 10 by means of two fastenings 19. The fastenings ■ and the shock ring 16 form a common part and are provided diametrically opposite one another.

! The cover 11 has according to Pig. 3 and 4 an upper one

Wall 23, on the outside of which is a U-shaped cross-section Channel adjoins that to receive the upper end of the side wall 13 of the container 10 is used. This U-shaped channel consists of an outer wall 24 and a concentric inner wall 25, : whereby the walls 24 and 25 are connected at the top by a partition 26 are. As mentioned above, a locking flange 27 is provided on the inside of the outer wall 24, which the bead 14 engages behind at the upper edge of the side wall 13, | when the lid 11 is to be attached to the container 10. j

On the inner wall 25, an extension 28 is provided which according to Pig. 4 extends downward beyond the wall 23. This extension 28 has the task of locking Engagement between the container 10 and the deodorant 11 to improve. Concentric to the inner wall 25 is within

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a wall 29 is also provided at a distance from this. These Wall 29 "forms in connection with the surface of the wall 23 of the cover 11 a receptacle of sufficient depth for the lower edge of a container 10 when several containers on top of each other be stacked. The inner diameter of the wall 29 corresponds approximately to the Durohmesser of the lower end of the container 10, so that the lower end of the container 10 fits into the space formed by the wall 29 and against lateral displacement is secured when stacking. Between the inner wall 25 and the wall 29 is a series of support ribs 31 provided, which have a distance from each other and the Deokel 11 and in particular the wall 29 give additional rigidity.

; Preferably is within the U-shaped channel

A seal 30 is provided in the cover 11, and the cover 11 and the container are dimensioned so that the Diohtung 30 is compressed when the lid is on and a seal Completion between the lid and the container causes when the arrest; tierungsflansch 27 is locked behind the bead 14. The upper wall 23 of the lid 11 will preferably form an immersive construction, but the lid 11 can in spite of this j its possibility of separation from the container with a pouring opening 32 are provided, through which the contents of the container j can be emptied by conventional means. In the latter pail Normally the deodorant 11 is not removed, but that the product in the container is released through the pouring opening.

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took.

It was "already pointed out above that" in Shipping and / or storage of the containers 10 often against one another be moved so that the deodorant or part of a container under the lower edge of the outer wall 24 the deodorant of another container reaches, whereby the container is canted. If the container then for example butt against each other at the Traneport, the can on the lid force acting on top cause the cover to pop off. This The invention solves the problem by suitably designing the outer wall 24 of the cover 11, the drip ring 15 and the shock ring 16 on the side wall 13 of the container 10. In particular is the length of the outer wall 24 of the lid 11 and the location of the drip ring 15 on the outer wall 13 of the container so selected that the drip ring 15 is immediately below the located lower edge of the outer wall 24 and si oh extends horizontally outward so that its outer diameter is equal to or is approximately the same as the outer diameter of the wall 24. If the Drip ring 15 has the same diameter as the outer wall 24 and is located immediately below the lower edge of the outer wall 24, it is largely prevented that the lid of another container with the lower edge of the outer wall 24 what comes out of Pig. 6 it can be seen where a Container 10 is shown in a tilted position with respect to another container. Daduroh, that a deodorant prevented it is to come into engagement with the lower edge of the outer wall 24 of the lid 11 of another container, the possibility is

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possibility that an upward force is retained acts on the outer wall 24 and the deodorant unintentionally jumps off the container.

Furthermore, the shock ring 16 acts on the side wall 13 of the container 10 with the Iropfring 15 together so that a accidental removal of a lid 11 from a container is prevented. As can be seen from the drawings, the outermost diameter of the thrust ring 16 is larger than the diameter the outer wall 24 of the lid 11, and thus these push rings 16 cause the container a predetermined distance adhere to each other when they are side by side be stored. The shock rings 16 prevent static conditions and also during shipping when the container ! are pushed against each other so that the cover 11 of a loading

i holder and a deodorant from another container interlock ·! In addition, the diameter of the thrust rings 16 and their arrangement below the drip rings 15 is chosen so that the; Bumper ring 16 comes into contact with the side wall of a container when the upper edge of a container lid is below the lower edge of the outer wall 24, which in Pig. 6! is shown. The impact edge 16 so interacts with the drip edge i together so that the Deokel 11 of a container can not hook under the] lower edge of the outer wall 24, thereby preventing! Is that a force can be exerted on the wall 24, ■■ to a unintentional jumping off of the deodorant 11 from the 'container could lead. Furthermore, if a container should tilt in the manner shown in FIG. 6, the container will endeavor to return to its normal position

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take, and this endeavor is supported by the fact that the lower edge of the shock ring 16 with the inclined surface 17 of the thrust ring comes into engagement on the other container and slides down on this. Here the Container 10, of course, causes the Uormal distance again to the other container and does not get caught on the other container.

It can also be seen that both the drip ring 15 and j the bumper ring 16 have a downwardly inclined surface, and these surfaces can be quickly and easily cleaned

if drops or dust accumulates on them to have. This ■ is a notable asset, in particular if there is food in the container that has been contaminated by dust, ' ; that has accumulated on the rings become contaminated ; can. The chosen shape of the drip ring 15 and in particular the shock ring 16 increases the stability of the container against

! Deformations considerable, so that the thickness of the container sides j j wall can be reduced so much that these rings can be provided without the need for additional material. | A container 10 can therefore be made from the same amount of material

normally used for other types of loading ^!

containers is required. Also the one needed for the molding process Time is in the manufacture of a container according to the invention the same or approximately the same as known similar containers. Furthermore, since the shock ring 16 is only a little is removed from the drip ring 15, only a small area becomes the side wall interrupted by the rings. This leaves a considerable amount of space to store printed matter, for decorative

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and / or for advertising purposes.

Container of the construction described above have been checked by an independent testing agency, and the results showed that the thrust ring 16 still has further improvements' in terms of flexural strength and dimensional stability. j

One such test consisted of a drop test where}

filled containers fall on their sides from different heights; were left. Here sioh showed that the containers with the! Shock-rings 16 in comparison to other vessels without ähnliohen '\ such rings having a substantially higher stability and greater drop heights j auehielten before the container aioh deformed so that a displacement of the cover was möglioh.

The containers were also subjected to various stress tests to determine their dimensional stability. As is well known, a container of this type usually acts like a column of liquid from the height of the container. When the container when a load is applied from above, the load exerts exerts a force on the side wall of the container that is greatest near the center. This force can be enough to 'Cause the side wall of the container to crack or bulge. The shock ring 16 divides the half height Column of liquid, or in other words forms two columns of liquid one on top of the other, with the lower end of the upper column located roughly where the shock ring is on ; Container is located. If there is a load on top of the container

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-H-

is brought, so is the force acting on the upper column
from ring 16 to ge nonane η, while below ring 16
'the load now acts on a shorter section, so that the ι

The likelihood of the sidewall cracking or buckling is significantly reduced. It has been shown in these \ tests that the container according to the invention meets all j claims, which for the use of containers when j shipping by truck from the National Motor Freight; Glassifioation Board of the American Trucking Association i have been established.

-Patent claims-

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Claims (1)

Claims 1.) Molded from plastic, open-topped container with a mist or a flansoh-like profile at the top, which can be received by a U-shaped channel on the outer edge of a lid to produce a tight Versohlusses, the U-shaped channel duroh a inner and an outer wall concentric thereto and an upper connecting part for: forming the walls, characterized in that on the; On the inside of the outer wall (24) locking means (27) are provided in such a way that they are in engagement with the bead (14) when the container is closed, but permit the lid (11) to be released, and that the container (10) with a drip ring (15) and a push ring (16), which are shaped and arranged in such a way that when several containers are stacked next to each other, a distance is maintained between the containers and the lids are protected against accidental damage jump when the containers come into contact! are secured. ; 2. Container according to claim 1, characterized in that the drip ring (15) extends from the side wall (13) outwards and downwards at an angle. 309839/0516 3. Container according to claim 2, characterized in that the drip ring (15) is arranged only so far below the bead (14) and maintenance »the lower edge of the outer wall (24) of the lid that the outer edge of the lid of another container does not can hook under the lower edge of the outer wall (24) when the bumper ring (16) is in contact with the other container. 4. Container naoh Anspruoh 3, marked ichnet that the drip ring (15) is dimensioned so that it has the strength and Dimensional stability of the container and thus the security of the locking of the deodorant and the seal between the container and De oke1 e increased. 5. Container according to one of the preceding claims, characterized in that the thrust ring (16) is arranged at a distance below the drip ring and consists of an upper wall (17) extending outward from the container wall (13) and an adjoining wall (17), approximately vertically downwardly extending end wall (18), wherein the end wall serves as a means for maintaining the distance to other containers. 6. Container according to claim 5, characterized in that in the bumper ring (16) integral fastenings (19) for a support bracket (25) are provided and that several stiffening ribs between the container side wall (13) and the end wall (I8) of the Shock ring (16) are arranged at a distance from one another so that the container held or raised on the carrying handle (20) remains stable in its shape. 309839/0516 '- 7. Container according to claim 5 » characterized in that the upper wall (17) of the thrust ring (16) extends downward at an angle. 8. A container according to Anspruoh 5> characterized in that the thrust ring (16) is dimensioned so that bulging of the container side wall is avoided in a pail on the side. 9. Container according to Anspruoh 5 » characterized in that the thrust ring (16) is arranged so that when the container is subjected to a load from above, the resistance of the container side wall to bulging is increased. 309839/0516 Blank page