DE2549400A1 - PLASTIC CONTAINER - Google Patents

Description

Metallurgie et Plastic S.A. · Romont / Switzerland

Plastic container

The present invention relates to a plastic container with a lid and at least one handle.

The plastic containers have several advantages, one of which is economical manufacture by injection and can name a great resistance to corrosion.

However, it is difficult to find one enough for a large content to get rigid container or if the specific gravity

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of the transported material is large. This lack of stiffness results in a deformation of the cross section of the container body during transport or in the event of lateral impacts, which often caused the opening of the lid.

A container is known which, in order to solve this problem, has a ribbed bead around the upper part of the frusto-conical Has body of the container, while the bottom through expedient arranged ribs a, great strength. During transport, these containers are placed side by side on standard pallets charged, whereby their beads come into contact with one another, the contact length corresponding to the height of the bead. If shocks now occur, the surface pressure can be high enough to deform the container body in places and cause the lid to open.

It is the aim of the present invention to provide a container with to indicate greatly improved resistance to impacts. Such a container is characterized by the fact that it has a has a fixed polygonal flange which, on certain of its front faces, has means for the relative displacement of to avoid two or more containers lying next to each other, especially for transport.

In a preferred embodiment of the invention, the contains lower part of the body a separate, deformable and

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relatively flexible surface that encompasses the bottom of the body to protect it against impacts.

In the following, some exemplary embodiments of the invention will be explained in more detail with reference to a drawing.

Figure 1 is a perspective view of the container without a lid,

Figure 2 shows a plan view of an arrangement of containers on a standard pallet,

FIG. 3 is an enlarged section from the preceding figures and represents the means for the relative movements to prevent the container.

Figure 4 is a top plan view of a first embodiment a container,

FIG. 5 shows a detail from FIG. 6, a view from the left of FIG.

Figure 6 is a section along the line VI-VI of Figure 4,

FIG. 7 shows in detail the means for mutual displacement of containers to prevent

FIG. 8 shows a section of a second exemplary embodiment

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FIG. 9 is a view from below of one half of the container according to FIG. 8,

Figure Io is a bottom view of one half of another Execution match of a container,

Figure 11 shows a rib network to stiffen the body of the container,

Figure 12 is a section along the line XII-XII of Figure 11,

Figure 13 is a section along the line XIII-XII of Figure Io,

Figure 14 shows a variant of the lid that fits on the top of the body and

Figure 15 is another variant of the lid.

Figures 1, 2 and 3 represent the main inventive concept: the container has a body 1 with a polygonal flange 2, the sides of which are provided with small ribs 4 are on, wherein the flange has openings to let the handles 3 through. The containers are used for transport with the lids 5 on a pallet 6 (Figure 2) arranged in such a way that the ribs 4 of a container in the ribs 4a engage the adjacent container (Figure 3). You can then the container unit with a plastic tape or with a

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Band that shortens under the action of heat, connect with each other. The ribs prevent mutual displacement the container 'during transport, also the flanges strong enough to prevent deformation of the body in the event of impact.

The flange can be located on the top or bottom of the body, or attached to the lid of the container.

Figures 4, 5, 6 and 7 represent a first variant of the invention. The basic shape of flange 7, in plan view, is square with bevelled corners under 45, the cross-section of the flange (see Figure 6) has the shape of a Angle whose thickness is approximately equal to that of the body Io. One of the legs of the angle that is perpendicular is arranged to the axis of the container, the upper level of the flange and the other leg forms the front of the Flange 7. A group of ribs, not shown, connects the face of the flange to the wall of the body. The flange 7 is located near the top of the frustoconical body Io. On the front of the Flange, groups of ribs 8, 8a, 8b, 9 and 9a (see Figure 7) are arranged alternately and perpendicular to one another. So that these ribs can engage in those of an adjacent container, it is necessary that after a rotation by 180 ° with respect to the axis A-A (Figure 7) the ribs of the

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Groups 8b and 9 come to lie between the ribs of groups 8a and 9a. This way it is possible in case two or more containers touch each other to eliminate relative displacement of containers in two directions.

In two of the beveled corners of the flange 7 openings 11 are arranged which allow flexible carrying handles 13, these carrying handles having small cylinders 14 at their ends, which are not shown in FIG Engage recesses in the flange 7. Additional ribs absorb the bending forces caused by the pull on the carrying handles arise during transport.

It goes without saying that the carrying handles 13 can be replaced by a single flexible carrying handle, with it in this case there is only a single opening 11 at each of the opposite corners. The lid 12 (Figure 6) is are described in detail below.

Figures 8 and 9 show another embodiment of the Container. The octagonal flange 2o has similar groups of ribs 8 and 9 on four of its front sides as they are further on has been described above. Figure 9 shows the arrangement of the ribs 24, which the front sides of the flange 2o with the Connect the wall of the truncated cone-shaped body Io. On four On the front of the flange, these ribs are formed in order to easily grasp and handle the container

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can, with the parts 22 and 23 of the flange taking on the role of handles. The ribs 21 that the parts 22 and 23, extend along the body for a certain length. .

The wall of the body Io extends over the top of the flange 2o and forms a tab 36 on which the cover 12 is fitted.

The lid 12 contains a central part 34 reinforced by ribs 37, which connects to the closure part of the lid a "U" -shaped and flexible wall 31 is connected, which makes it possible to impact on the closure part absorb. The closure part is formed from a folded wall that clamps the tab 36 and the lid 12 holds on to the locking part 33 formed on the tab 36. A band made of plastic can be inserted into the Notch 33 can be inserted to secure the cover. If the lid needs to be closed tightly, a Sealing ring can be inserted into the groove 38.

The bottom 28 of the container is through one with the body Io Connected truncated cone, the continuous rounded transitions 29 and 3o, while the wall of the body is extended by a cylindrical part 25 which comprises the bottom 28. This cylindrical part 25 is through ribs 26 evenly distributed over the circumference are reinforced

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and can deform in the event of an impact, and so can the floor 28 protect.

The container and the lid are made from injection molding, e.g. from a high density polyethylene. At the container the plastic mass is injected in the center 39 of the soil, the conditions for the distribution of the material being at Injection is enhanced by a series of ribs 27 connecting the injection point and the bottom of the body, the Roundings 29 and 3o contribute to the further improvement of the injection. The same also applies to the ribs 35 of the Cover 12.

Another embodiment is shown in Figure Io, which the represents one half of the container from below. The polygonal flange 5o contains 12 sides, with every other side central 51 to prevent the relative displacement of abutting containers. These funds 51 are already further has been described above and shown in FIG.

On two opposite sides of the flange 5o a finger 51 is fastened each, which is used, one end of one not here to attach flexible handle shown, the axis of this finger 52 with a reinforcing rib 53 collapses and these reinforcing ribs being the same This role is played by the ribs 21 in FIGS. 8 and 9.

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The bottom 55 of the container also contains, as shown in FIG. 8, a cylindrical wall 54 which can be deformed in order to absorb shocks. In order to improve this absorption, relatively flexible connecting ribs 65 to the bottom of the container with the wall 54, these ribs form a certain angle ^ with a radius, which makes them easier to give in an impact than if they were arranged radially.

The middle part of the base 55 contains a collar 64 (see FIG. 13) which rests on the base or on the pallet when the container is full.

Other measures can be taken to reduce the To improve the strength of the container, for example, a network of ribs 56 (see Figures 11 and 12) can be provided reinforcing the inner wall 57 of the body, these ribs having a small height, e.g. 0.5 mm to avoid difficulty in lifting the form.

Ultimately, experience teaches that in some cases the cover 66 must be very strong. To achieve this, one removes the flexible part 31 of the lid 12, see Figure 8, and connects the middle part of the lid with the Locking tab by means of a wall 6o, the rigidity of which is ensured by a series of ribs 58 and 59.

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The triangular ribs 58 leave part of the wall free, so that when two containers are placed on top of each other the cylindrical wall 54 of one container is centered on the lid of the other container, thereby enabling the stacking of multiple containers is facilitated. The small base of the ribs 59 coincide with the inner surface of the lid together, while part 59a of the rib extends the inner wall of the locking tab. This arrangement allows it is easy to stack the lids on top of each other.

Another possibility, shown in FIG. 15, to reinforce the cover is to use the central wall of the To extend cover 67 and so to form a kind of annular groove 62. By having the latter with a group of ribs 61, the cover is stiffened, each rib having a flat part 61a which forms the central wall extended, and a triangular part 61b intended to ensure the centering of another container 63. .

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Claims (15)

PATENT CLAIMS 1. Plastic container with a lid and at least one handle, characterized in that it has a solid polygonal flange aiaf, which contains on certain of its front faces means for the relative displacement of two or several bumping into containers, especially for transport. 2. Container according to claim 1, characterized in that the polygonal flange with the frustoconical body of the container forms a unit. 3. Container according to claim 1, characterized in that the polygonal flange is connected to the lid of the container is. 4. Container according to one of claims 1 to 3, characterized in that that the means to avoid the relative · displacement contain groups of ribs which alternate are arranged perpendicular to each other and are provided during transport in the groups of ribs of the neighboring Intervene in the container. 5. Container according to claims 2 and 4, characterized in that that the flange has a square basic shape with bevelled corners, and that it is close to the 609822/0649 Upper part of the body is arranged. 6. The container geraäss claim 2, characterized in that the lower part of the body comprises a deformable, relatively flexible and separate surface oden the ^B of the body includes order to protect it against shocks. 7. Container according to claim 6, characterized in that the deformable surface is connected to the bottom of the body by means of ribs, these ribs having a certain amount Have angles with respect to the radial direction. 8. Container according to claim 2, characterized in that the wall of the body projects beyond the top of the flange, and thus defines a tab within which the lid is fitted. 9. Container according to claim 8, characterized in that the lid contains a "ü" -shaped and flexible wall which connects the middle part of this lid with its closure part. 10. Container according to claim 5, characterized in that the "U" -shaped wall by a group of radially arranged Ribs is reinforced, these ribs have a flat part that coincides with the middle part of the lid. 609 822/0649 ¹³ "2549A00 falls and a triangular part that allows to center another container and make it easier to stack on top of each other, 11. Container according to claim 5, characterized in that Openings on two of the opposite and beveled corners are attached to allow the implementation of flexible handles. 12. Container according to claims 2 and 4, characterized in that that the flange has an eight-sided shape, four of these sides are ribbed such that the Container is easy to grasp and handle and the flange plays the role of a handle. 13. Container according to claim 11, characterized in that the flexible carrying handle or handles made of injection-molded plastic exist and that they have cylinders at their ends, which are intended to hold the handles in openings in the To fasten flange. 14. Container according to claims 5 and 12, characterized in that that the body with the flange is made of a plastic that is injected in the center of the body floor and that.a series of ribs are provided which connect the injection point to the wall of the body and which form a continuous transition between the ground and the viand of the body so as to create the conditions for the To improve distribution of the material during injection. 60982 2/0649 15. Container according to claims 5 and 12, characterized in that that the bottom of the body has a collar in its center, which rests on the bottom when the container is filled. 609822/0649 Blank page