DE2315518C3 - Transport container made of synthetic foam - Google Patents

Description

35

The invention relates to a transport container made of synthetic foam, consisting of a container base and an upper part of the container that can be locked to one another in an elastically form-fitting manner, wherein the one container part has a protruding nose and the other container part for interlocking locking a correspondingly adapted detent has the whole for transport containers with one opposite the Container opening of the lower part of the set-back support edge for the front edge of one on the lower part of the container the edge area of the container opening in a press fit over and serving as a lid container upper part.

Transport containers of this type are used in particular for packaged goods that have good thermal properties Require isolation. Such a transport container has become known, for example, from DT-Gbtn 1 933 073, which shows a transport container in which the container lower part is opposite to the container opening recessed support edge for a clamping fit over the edge area of the container opening Has formed as a clamping lid or slip lid container upper part. However, it turned out that with robust handling sometimes the clamp cover and slip cover are slightly different from theirs Loosen the respective lower part of the container. As a result, however, the packaged goods can be accessed directly from the outside acted and thus made the thermal insulation practically ineffective by 6s the transport container will.

It is, however, an off by the CHPS 497 323

The projections formed on the front edge of the lid and the handle having the breakthroughs mean, however, an additional material and Tool effort. In addition, a tight seal should be used between the lid and the plate is only possible if the lid is pressed firmly onto the plate and in the corresponding position by the outwardly directed lugs of the extensions reliably in the catches of the openings is held. This however, the distance between a nose and the associated latching surface must be strictly adhered to In spite of this, a tight seal does not always appear to be guaranteed because between the lid and plate there is only one edge contact so that the temperature of the container contents is not or .iur difficult to keep constant.

The object of the invention is therefore to be achieved in the case of a transport container consisting of a container upper part and container base according to the German utility model 1 933 073 using at least one nose of a transport container engaging behind a locking surface according to CH-PS 497 323 to create a form-fitting, latchable lid closure, which at the same time strives to act as a lid trained upper part to draw on the lower part of the container.

This object is achieved in a simple manner in that for the positive locking of the im Press fit abutting vertical surfaces of the container parts the one surface with at least one protruding nose and the other surface with the respectively assigned, appropriately adapted detent is provided and that each nose and each detent has the cross-section of a right triangle, one of which is in the plane of the lid opening or in the plane of the support edge of the lower part of the container lies

In particular, the training can be carried out in such a way that for elastic locking the lower part of the container made of a hard synthetic foam, e.g. B. made of polystyrene, and the container top a soft upholstery fabric, e.g. B. made of polyurethane, or vice versa

Such a design of the transport container only requires a relatively minor change of the existing mold and makes in contrast to the embodiment according to the Swiss patent no enlargement of the lower part of the container necessary. The cost of materials is therefore the same as for a transport container according to the German utility model without a lid lock. When the upper and lower part of the container are locked, each nose with its hypotenuse »E strive to place the upper part of the container on the

to pull storage edge of the container base, so that not rtur a reliable, but also a tight lid closure is guaranteed, especially if, for example, to increase the elasticity of the nose having Retained from a soft and the provided with the catches upper part of the container from a hard one or harder synthetic foam is produced. In addition, such an embodiment provides a particularly firm press fit, so that one more security against unintentional separation of the lower part of the container and the upper part of a transport container given is

The invention is explained in more detail using the drawing. It shows

F i g. 1 shows a side view of the upper part of the container or the lid of a transport container,

F i g. 2 shows a section through the upper part of the container along the line H-II in FIG. 1,

3 shows a section through the detail "A" in F i g. 2 on a larger scale,

F i g. 4 shows a side view of the container lower part of the transport container according to FIG. 1,

5 shows a section through the lower part of the container according to the line V-V in F i g. 4 and

6 shows a section through the detail "&" in 2; F i g. 5 on a larger scale.

The transport container consists of a container base 1 with a support edge 2 set back with respect to the container opening of the lower part for the Front edge 3 of a on the container lower part 1, the edge area of the container opening overlapping in a press fit and as a lid serving upper container part 4. The transport container is made of polystyrene foam, which is not only space-saving, but also dust-free and compared to the usual packaging a generally cheaper and rational packaging guaranteed, especially since the polystyrene foam with a low weight also has a high strength and in particular also for thermal insulation of the packaged goods is best suited. For goods, it is usually important that the temperature is kept as constant as possible or that it undergoes at least only minor changes regardless of whether the temperature to be maintained is in the Cold or warm area

To prevent the packaged goods from being sturdy handling, careless stacking or Unstacking the shipping container is unintentionally exposed and thus effects of so subject to the outside, according to the invention, the training is carried out so that the container base 1 and the Upper container part 4 can be locked together in an elastically form-fitting manner. The upper part of the container engages in the usual way 4 with a stepped collar-like edge 5 in a press fit over a recessed edge 6 of the lower container part 1, namely as far as the free end edge 3 of the upper container part 4 or the lid rests firmly on the support edge 2 of the lower part of the container 1 1 and 4 is at least one surface 7 or 8 of the two vertical and in a KJemmsitz abutting one another Areas 7 and 8 of the two neck-like collars 5 and 6 of the lower part 1 and upper part 4 of the transport container with a nose 9 projecting towards the interior of the transport container and the other surface 8 or 7 is provided with a correspondingly adapted recess or detent 10 which accommodates the nose 9. In this case, the wall part 11 or 12 having the nose 9 or the detent 10 can correspond to the length the nose 9 or the latch 10 and the height of the lower container part 1 or upper container part 4 through each a channel 13 to be exposed from the rest of the wall 14 to with the locking of the container lower part 1 with the upper container part 4 to ensure the required elasticity.

In the case of the container, the nose 10 is integrally formed on the inside of the collar-like edge 5 of the upper part 4 of the container. It has the cross-section of a right triangle and is arranged so that one cathetus 15 lies in the plane of the cover opening 16 The catch 10 is in a corresponding manner and size in the collar-like Edge 6 of the container lower part 1, namely molded in the surface 8 It also has the cross section a right-angled triangle, of which one cathetus 17 lies in the plane of the support edge 2. Of the Cover closure formed in the manner explained reliably prevents unintentional loosening of the Upper container part 4 or the lid and thus a direct effect on the packaged goods of Outside. It is a question of the size of the transport container, how many lugs 9 and notches 10 are molded on or in the weight of the packaged goods must also be taken into account.

A further improvement of the lid seat or lid closure between the container lower part 1 and the upper container part 4 and a good elastic locking of these two container parts can also can still be achieved in that the container base 1 made of a hard polystyrene foam and the Upper container part 4 made of a soft upholstery material, e.g. B. polyurethane foam, or vice versa will.

1 sheet of drawings

Claims (2)

Patent claims: L Transport container made of synthetic foam, consisting of a container base and one with this elastic form-fitting interlockable container upper part, with the form-fitting Latch the one container part a protruding nose and the other container part one accordingly has adapted latch, the whole thing for transport containers with one opposite the container opening of the lower part set back The upper part of the container, which overlaps the container opening in a press fit and serves as a lid, characterized in that the interlocking locking of the press fit together vertical surfaces of the container parts (1 and 4) the one surface (7 or 8) with at least a protruding nose (9) and the other surface (8 or 7) with the respectively assigned, appropriately adapted catch (10) is provided and that each nose and each catch has the cross section of a having a right triangle, of which one cathetus (15 or 17) in the plane of the lid opening (16) or in the plane of the support edge (2) of the container base (1) 2. Transport container according to claim 1, characterized in that the elastic latching of the Lower container part (1) made of a hard synthetic foam, e.g. B. made of polystyrene, and the container top (4) made of a soft upholstery fabric, e.g. B. polyurethane foam, exists or vice versa Plastic foam of existing transport containers became known at which in the closed state dje two container parts are locked together. at In the known transport container, however, the container base consists only of a plate. The that Packaged goods, e.g. B. an ice cream cake, covering lid is pVramiden- or truncated cone-shaped Er engages with two diametrically opposed extensions in corresponding openings in the Plate a, partially in laterally molded handles the plate are provided. Each appendix has an outwardly directed nose that is matched with a corresponding one Rest together in the assigned breakthrough