EP1757527A1 - Container, in particular for storage, stacking and transportation - Google Patents

Abstract

The crate has a lid made up of two sections (6a) which are attached by hinges or snap fit on to the crate sides. Their inner edges form an interlocking wavy line (7a) and are held together by cooperating hooks (12).

Description

The invention relates to a container, in particular storage, stacking and transport containers, which can be closed with a one- or two-part lid, wherein the lid in the manner of tongue and groove connections with the container upper edge can be latched or in two-piece lid design with each other opposite on the upper edge of the container hinged joint-mounted cover halves over at the free ends along a closure line in at least a region overlapping, provided in the overlap region tongue and groove connections or the like interlocking locking means is latched.

Such usually made of plastic by injection molding containers with an attachable or hinged on one side and can be latched to the container top edge lid or a lid consisting of two cover halves are well known. At one by the DE 92 12 813.0 U1 become known container having a closure lid from cover halves whose free edges overlap each other along at least a portion of a closure line, the overlapping edges are interlocked with a tongue and groove connection. This connection consists of at least one longitudinal rib and a bag associated with it in the corresponding lid edge.

One from the EP 0 088 224 B1 known box or container with two-part lid has in a first embodiment, each with an overlapping lid projection a straight and in another embodiment with a plurality of overlapping lid projections a wavy closure line. The overlapping areas are there in any case designed so that frame on the one half of the cover inside, transverse and longitudinal webs in the closed position block-like elevations at the top of the other cover half. These web and block reinforcements are intended to limit relative sideways movement when the lid half closes the box and when stacked containers of contents load their weight on the lower box (s). A further support of the closure position of this box is characterized in that the corner regions of the cover halves overlap each other and engage there with downwardly projecting elevations in these facing recesses.

However, as has been shown with the known lids, can not be excluded that under heavy load, the Verzahnungselemente deform (tongue and groove joints or Blockverrastung with resistance surfaces), wherein the locking elements assume an inclination, slide away from each other and so lose the positive connection or no longer maintained. In the final analysis, the lid breaks completely, in particular in the case of a two-part lid along the closure line, which also gives rise to a risk of injury. It should be noted that the containers, when stacked with their lids in the closed position on each other or one above the other, a considerable burden, especially the lower container, subject, which acts on the lid. The weight of the load is distributed over the middle lid portions, and in particular in two-piece lids it comes to separating the locking connection.

The invention is therefore an object of the invention to provide a container of the type mentioned without the disadvantages described, d. H. to prevent loosening of the latching connection both in a one-piece and a two-part lid and thus to avoid a collapse of the lid, which should nevertheless close gently unchanged.

This object is achieved in that additional locking means in the form of mutually under load against each other and thereby verkrallenden, mutually oppositely arranged hook or locking elements are formed. Thus, by additional hooks or locking elements, preferably distributed over the length of the cover several, are provided and this deviating from the previous development of the locks under load, a relative movement is explicitly made possible, which sets a more intensive Verkrallung or entanglement, it can be achieved that the existing tongue and groove connections or other toothing elements on the bottom and top of the cover halves or on the underside of the one-piece lid and the container top edge can not slide apart. As a result, slipping or bending and, in the case of a two-part cover, the drifting apart of the tongue and groove elements connecting the overlapping cover halves and thus the cover and the cover halves breaking into the container interior are precluded.

A preferred embodiment of the invention provides that the hook-latch elements consist of a top, with a low-lying, inwardly angled latch projection and the other lower, formed with a raised, outwardly angled latch projection formed, substantially L-shaped bolt lugs. Under load, the latch projections slide over one another, their length limiting the amount of displacement, because the latch projections then find an end stop on the vertical portion of the L-shaped latch lugs. The displacement is greater, the higher the load. The free mobility or nesting can be through a rounded contouring of the locking projections are favored. The clawing increasingly by load or pressure with its hook-locking elements lid remains closed even with heavy ballast, and in particular the lid halves of a two-piece lid no longer separate from each other or no longer break inwards.

According to one proposal of the invention, the hook and bolt elements are formed integrally with the cover halves or the lid and the container upper edge. When made of plastic by injection molding containers and lids can be manufacturing technology simply spray it on. Alternatively, they could subsequently be inserted into prepared apertures in a positionally secure manner, clipped, or the like.

Fig. 1

in perspektivischer Draufsicht einen durch Deckelhälften verschlossenen Behälter;

Fig. 2

in perspektivischer Draufsicht als Einzelheit die entlang ihrer Verschlußlinie verriegelten Deckelhälften;

Fig. 3

in perspektivischer Ansicht eine Draufsicht auf eine Deckelhälfte;

Fig. 4

in der Draufsicht einen Ausschnitt einer Deckelhälfte;

Fig. 5

einen Ausschnitt einer Deckelhälfte von unten gesehen;

Fig. 6

in schematischer Darstellung eine Bewegungszwischenphase beim Schließen der beiden Deckelhälften;

Fig. 7

die Deckelhälften der Fig. 6 in der geschlossenen Position ohne Druck- bzw. Lasteinwirkung von oben, schematisch dargestellt; und

Fig. 8

die Deckelhälften der Fig. 7 in ihrer unter Last- und Druckeinwirkung ineinander verhakten bzw. -krallten Lage.

Further features and details of the invention will become apparent from the claims and the following description of an embodiment of the invention illustrated in the drawings in connection with a two-part cover. Show it:

Fig. 1

in a perspective plan view of a container closed by cover halves container;

Fig. 2

in perspective plan view as a detail the lid halves locked along its closure line;

Fig. 3

in a perspective view a plan view of a lid half;

Fig. 4

in plan view a section of a cover half;

Fig. 5

a section of a lid half seen from below;

Fig. 6

in a schematic representation, a movement intermediate phase when closing the two cover halves;

Fig. 7

the cover halves of Figure 6 in the closed position without pressure or load from above, shown schematically. and

Fig. 8

The cover halves of Fig. 7 in their under load and pressure interlocked or clawed position.

A bearing, stacking and transport container - hereinafter referred to as container 1 - has a substantially rectangular design with a bottom 2, two longitudinal walls 3 projecting approximately at right angles thereto and two transverse walls 4 likewise projecting approximately at right angles. Instead of the rigid construction, the longitudinal and transverse walls could also be collapsible or foldable. At the upper ends of the longitudinal walls 3, two cover halves 6 a and 6 b are mounted pivotably in hinges 5. The cover halves 6 a and 6 b are provided at their free edges with part-circular cover projections 7 a and 7 b, which in the respective opposite cover half in the surface mating recesses 8 a and 8 b are assigned. In the closed position, the lid halves overlap 6 a and 6 b with their lid projections 7 a and 7 b, which are received by the corresponding recesses 8 a and 8 b of the other lid half. Due to the contouring of the lid projections 7 a and 7 b is formed in the closed position, a wave-shaped closure line 9 (see also Fig. 2-5).

At the free, mutually facing edges or ends of the cover halves 6 a, 6 b are along the closure line 9 on the one hand on the upper sides in the recesses 8 a, 8 b and on the other hand complementary to the underside of the other cover half 6 a and 6 b Gear elements in the form of tongue and groove connections (see in Figs. 4 and 5, the springs 10 and the complementary Grooves 11) are provided. In addition, again on both the upper side of the one and the underside of the other cover half 6 a, 6 b additional hook-locking elements 12 are formed. These consist of substantially L-shaped locking lugs (see Fig. 6 to 8), wherein the lid with their projections 7 a in the recesses 8 b when you close the cover legend lid half 6 a at its locking lug 13 a a low-lying locking projection 14 a has, while the bolt shoulder 13 b of the cover half 6 b has a raised latch projection 14 b. The locking projections 14 a, 14 b extend in opposite directions to each other, that are directed inwards (14 a) and outwardly (14 b).

Fig. 6 shows an intermediate position for closing the lid by means of the two cover halves 6 a, 6 b. The completely closed cover position is shown in FIG. 7. Now, when stacking containers 1 (see Fig. 1) onto the lower container (s), a load or pressure occurs (see arrow F in Fig. 8), the hook-and-bolt members 12 are displaced or the L-shaped locking lugs 13 a, 13 b, starting from the unloaded situation according to Fig. 7, depending on the load or the pressure against each other and dig through the sliding one above the other locking projections 14 a, 14 b more and more. The cover or the cover halves 6 a, 6 b thus lock automatically and prevent the tongue and groove joints 10, 11 unfastened under heavy load, because a bending or divergence of the cover halves 6 a, 6 b by the hook Bar elements 12 is prevented.

Claims (4)

Container (1), in particular storage stacking and transport container, which can be closed with a one- or two-part lid (6 a; 6 b), wherein the lid in the manner of tongue and groove connections (10, 11) with the container upper edge latched or in two-piece lid design with opposite to the container edge hinge-like mounted lid halves (6 a; 6 b) over at their free ends along a closure line (9) in at least a region overlapping, provided in the overlap region tongue and groove connections (10, 11) or the like interlocking latching means is latched,
characterized,
in that additional latching means in the form of hook-and-bolt elements (12) which are mutually displaceable and engage each other under load, are arranged in opposite directions to one another. Container according to claim 1,
marked by
a plurality of hook-bolt elements (12) distributed over the length of the cover. Container according to claim 1 or 2,
characterized,
in that the hook / bolt elements (12) consist of a substantially L-shaped locking lugs (13) formed on the upper side with a low-lying, inwardly angled locking projection (14a) and on the other lower, with a raised, outwardly angled locking projection (14b) a, 13 b) exist. Container according to one of claims 1 to 3,
characterized,
in that the hook-bolt elements (12) are formed integrally with the cover halves (6 a, 6 b) or the cover and the container upper edge.

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