CZ7923U1 - Collapsible transportation container - Google Patents

Description

Technical field

The invention relates to a collapsible transport container which can be folded flat and in particular in the form of a pallet with a supporting structure and attachable superstructures comprising a floor, in particular a pallet and a group of walls, in particular two end walls and two side walls, a pallet and provided with frame strips formed in such a way that in the regions of contact of two adjacent walls, partially offset offset contact surfaces are formed with a shape corresponding to the type of profile; this container is known from DE 42 40 612 A1.

BACKGROUND OF THE INVENTION

The collapsible transport containers are usually formed both from the pallet as a substructure and from the respective walls or lids as extensions on the pallet.

Such a pallet is usually provided with a support structure that allows the fork of the fork-lift truck or carriage to be inserted into the openings in the support structure and lift the pallet from below. The walls, which are generally two side walls and two end walls corresponding to the rectangular shape of the pallet, can be mounted on the pallet when assembling the transport container.

In order to stabilize this upper superstructure of a pallet consisting of peripheral walls, it is proposed according to DE 42 40 612 A1 to provide side walls with frame strips arranged such that at the points of contact of the walls at the corners partially offset surfaces with a profiled shape are formed. In this way, it is achieved that the walls are supported by positive-fit joints. For further stabilization, angled couplings are used, mounted on the corner joints from above. In the pallet mounting area, a metal frame extending circumferentially from the outside is fastened to which the walls abut against the inside and are thus secured against slipping outwards.

The disadvantage of this solution is that the peripheral walls of the known collapsible shipping container are only supported on the pallet, so that there is no securing of the individual walls against the folding during assembly, which considerably complicates the assembly performed by one operator. Also, in this container there is no securing in the vertical direction, so that for transport, the container must additionally be wrapped with tensioning belts or other elements which ensure the walls are pressed against the pallet.

DE 94 05 756 proposes the use of positioning elements for arresting walls, which are formed, for example, in the form of pins or angles and which are provided on a circumferential floor frame located on the outer sides of the walls, which securing elements can be inserted into corresponding recesses in the walls. While these additional elements solve the stabilization of the walls in the vertical direction, they do not eliminate the problems associated with the assembly of the container, which in turn accentuate, because, due to the special joining between the walls and the floor frame, these known transport containers have to be assembled before the goods are stored.

From GM 94 10 241 a construction is known in which the pallet is provided with internally located stop elements and the pallet and also the walls are equipped with hinges and fittings arranged so that each wall can be hung separately in a horizontal, outwardly tilted position on the pallet and swiveled it can be pressed up against the stop elements and on the edges of adjacent walls. Even this solution does not make it easy to assemble the container by one worker.

The object of the invention is to provide an improved design of a collapsible shipping container which can be easily assembled, stabilized and used for a variety of purposes.

- 1 CZ 7923 Ul

The essence of the technical solution

This object is achieved by a collapsible transport container according to a technical solution, which consists in that the container has a floor or a pallet provided with a peripheral floor frame serving as a stop for the respective walls. Within the area bounded by the peripheral floor frame, recesses are provided in the floor or pallet for insertion of corresponding insertion sections formed on the walls, each of which is retractable from above into the recesses and is thus secured against tilting moment.

The technical solution is based on the idea of creating recesses in the floor or in the pallet, in the container and in the lower wall regions. As a result, the individual walls are secured against tilting when the transport container is assembled.

Another constructional modification is the formation of a perimeter floor frame and wall stop surfaces in the form of stops which effectively absorb the tilting moments and shear forces acting on the walls by their shape engagement.

The body of the transport container can be assembled by a single worker by gradually fitting the side and front walls and subsequently securing the structure by suitably positioned screws or similar fasteners. Equally simple is the dismantling and unfolding of the transport container according to the technical solution.

A significant advantage of the transport container according to the technical solution, which can also be assembled in principle only by means of screw and plug connections, is the possibility of versatile and re-use in addition to its easy dismantling.

In a preferred embodiment of the transport container according to the invention, the abutting walls are connected to each other by corner connectors, which are preferably located in the upper corner regions. The corner connectors are formed by screwable angular elements which are mounted on the outer wall surfaces and screwed on during assembly.

According to a further preferred embodiment of the invention, the angular elements are pre-fastened to two opposing walls. This reduces the number of individual parts when assembling or unfolding the shipping container.

The recesses in a further preferred embodiment of the transport container are formed in that at least two stiffening strips with a pre-formed recess are fastened to the floor or pallet. Preferably, the two reinforcing strips are arranged longitudinally and horizontally on the floor frame and are provided with at least such a recess that each corner area in the floor or pallet comprises one angular recess.

On the one hand, the stiffening strips increase the strength and stability of the floor or the pallet and, on the other hand, they are easily replaceable for the realization of another sliding wall structure, in the simplest case, by loosening a few fastening screws.

In a further preferred embodiment of the invention, one of the reinforcing strips is mounted approximately in the middle of the floor or pallet and is provided with a recess such that a corresponding recess is formed between its end faces and the peripheral floor frame.

According to another embodiment, the walls comprise upper, substantially horizontal frame strips, a plurality of substantially vertical frame strips, and at least one inclined strut. The orientation of these strips refers to the assembled state, i.e. the position of the walls when they are inserted into the recesses. The lower ends of the vertical frame strips are provided with sliding sections. To achieve a better clamping and centering effect, the lower ends of the strips may be slanted or wedge-shaped.

In a further preferred embodiment of the invention, the vertical frame strips define contact surfaces at each edge of the horizontal frame strips. Thereby a lateral securing of the peripheral walls against tilting is provided.

. 9 CZ 7923 Ul

In another preferred embodiment of the invention, the floor or pallet and / or the at least one wall is provided with at least one fixation strip provided with clamping grooves for receiving the conveyed objects. The transport container with such fastening strips is particularly suitable for conveying sheet metal parts, in particular motor vehicle body parts, to be stacked parallel to each other but spaced apart during transport.

The collapsible transport container according to another preferred embodiment of the invention is provided with a locking device for locking the insertion sections of the vertical wall moldings inserted into the recesses in the vertical direction. The locking device is preferably formed by bolted connections with bolts pushed from the side by corresponding holes in the floor frame.

The arresting device may also be formed by other technical means, for example, a latching device, a wedge clamping device and the like.

BRIEF DESCRIPTION OF THE DRAWINGS

1a-c show a schematic illustration of the bottom structure of a collapsible container, with a plan view from above, Fig. 1b from the right side and Fig. 1c from the front; 2a-c a schematic view of one side wall of a collapsible container, wherein fig. 2a is a top view, fig. 2b is a right side view, and fig. 2c is a plan view from above, fig. 3a-c schematically 3a is a top plan view, FIG. 3b is a right side view, and FIG. 3c is a plan view from above, FIG. 4 is a top plan view of a collapsible container with front and side walls mounted thereon. FIG. 5 shows a schematic illustration of a collapsible container with the front and side walls fitted in a side view; and FIG. view a collapsible container fitted with front and side walls in the front view.

Examples of technical solution

In the drawings, like reference numerals designate the same or functionally the same container components.

Giant. 1a-c show a schematic illustration of a lower structural part of a transport container which can be folded into a flat formation, in which Fig. 1a is a top plan view of the container, Fig. 1b is a right side view in the direction of arrow A; and Fig. 1c is a front view in the direction of arrow C.

The lower part of the transport container according to this technical embodiment consists of a rectangular pallet 1 provided with a floor plate 2 to which the support structure 3 is fixed.

The floorboard 2 is formed, as can be seen in particular from FIG. 1b, from a series of parallel planks which are supported on the support structure 3.

On the edge of the floorboard 2 is fixedly fixed a peripheral floor frame 4, located on its side facing away from the support structure 3 and formed preferably of four interconnected strips, which are stabilized by bolted angular elements 5.

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Within the region of the floorboard 2 bounded by the floor frame 4 there are stiffening strips 6, 7, 8, 9, 10 connected to the floorboard 2, in particular by means of screws (not shown).

Between the reinforcing strips 6, 8, 10 'and the floor frame 4, recesses 11a, 11b, 11c, 11d, 12a, 12b are formed. 13a. 13b. Recess 1 la. 11b, 11c, 11d are located in the corners and have an angular shape. Further recesses 12a, 12b are located in the middle of the end faces and the recesses 13a, 13b are located in the middle of the width sides.

Perpendicular to the stiffening strips 7, 9 are located fixing strips 17, 18 parallel to the longitudinal axes of the stiffening strips 7, 9 and provided with clamping grooves 19 open upwards. The clamping grooves 19 serve to hold and clamp the conveyed parts, for example sheet metal parts. In the illustrated embodiment, the clamping grooves 19 are inclined to one side, as shown in FIG. 1.

Giant. Figs 2a-c show a schematic illustration of a side wall of a collapsible transport container which can be folded into a flat formation, wherein Fig. 2a is a side view from above, i.e. from the inside of the container in an assembled state; 2c is a top plan view in the direction of arrow C.

The side wall 20 consists of four horizontal frame strips 21 and three vertical frame strips 22, 23, 24 arranged perpendicular thereto, the position of which is stabilized by the inclined strut 25. The orientation "horizontal" and "vertical" refers to the assembled condition of the container. will be described in more detail in the examples of FIGS. 4 to 6.

The connection of the frame strips 21, 22, 23, 24 to each other and the vertical frame strips 22, 23, 24 to the strut 25 is preferably realized by means of screws 30.

The vertical frame strips 22, 24 are displaced slightly away from the ends of the first horizontal frame strips 21 to form a corresponding abutment surface for an adjacent front wall.

Around the middle of the length of the vertical frame rails 22, 23, 24 is a retaining rail 26 and a parallel fixing rail 27, the central plane of which is perpendicular to the plane of the retaining rail 26, which has clamping grooves 28 and substantially conforms to the fixing rails 17, 18 on the floorboard 2.

At the free ends of the frame strips 22, 23, 24, respective insertion sections 22a, 23a, 24a are provided. When assembling the container, the insertion sections 22a, 24a are inserted into the respective recesses 11d, 11c and the central insertion section 23a is inserted into the recesses 13b on the floorboard 2 so that the side wall 20 is fixed substantially vertically on the floorboard 2 and secured against tilting.

In addition, angular elements 31, 32 are fixed in the corners of the frame rails 24, which can be pre-fastened to the side wall 20, for example by screwing on the outside, prior to assembly and connection to the corresponding end wall.

The assembly of the second side wall 60 shown in FIG. 4 and opposite to the first side wall 20 is similar.

Giant. Figs 3a-c show schematically the front wall of a transportable container foldable into a flat formation, and Fig. 3a shows a side view from above, i.e. from the outside of the container in an assembled state, Fig. 3b is a right side view in the direction of arrow B and Fig. 3c is a top plan view in the direction of arrow C.

The front wall 40 consists of a horizontal frame rail 41 and three vertical frame rails 42, 43, 44 extending perpendicular thereto, the position of which is stabilized by the inclined strut 45.

The connection of the frame strips 41, 42, 43, 44 to each other and the vertical frame strips 42, 43, 44 to the inclined strut 45 is again preferably provided by means of screws 50.

The vertical frame rails 42, 44 are offset slightly from the ends of the horizontal frame rail 44 inwardly in order to form a corresponding abutment surface for the adjacent side wall.

-4EN 7923 Ul

Although not shown in this exemplary embodiment, additional retaining strips and fixation strips may also be provided on this end wall 40 to hold the articles to be transported.

At the free ends of the vertical frame strips 42, 43, 44, respective insertion sections 42a are provided. 43 and 44a.

When assembling the container, the insertion sections 42a, 44a are inserted into the corresponding recesses 11b. 11c and the central insertion section 43a is inserted into the central recess 12b of the floorboard 2 so as to secure the front wall 40 in a vertical position on the floorboard 2 and to be secured against tilting.

The assembly of the second end wall 80 (FIG. 4) opposite this first end wall 40 is performed in a similar manner.

The stability of the transport container according to the invention is particularly evident from Figures 4 to 6, in which the container is shown in the assembled state.

Giant. 4 is a schematic illustration of a shipping container according to the invention adapted to be folded into a flat configuration and provided with shoulder faces 40, 80 and side walls 20, 60, and FIG. 4 shows a top plan view of the container.

As can be seen from FIG. 4, the side walls 20, 60 and the front walls 40, 80 are in abutment with their bearing surfaces 35, 48 so as to secure, in addition to being held by sliding the respective sliding sections into the recesses in the floor plate 2. tilt the walls. The additional fastening is achieved in the assembled state by means of four angular elements 31, 32, 33, 34 fastened in the upper corners of the collapsed container.

Giant. 5 shows schematically in a side view in the direction of arrow A in FIG. 4 a transport container foldable into a flat formation with front and side walls fitted.

Giant. 6 illustrates schematically in a front view in the direction of arrow B of FIG. 4 a transport container foldable into a flat formation with front and side walls fitted.

Figures 5 and 6 show particularly well the fit of the insertion sections into corresponding recesses in the floor and the supporting effect of the peripheral floor frame 4.

This exemplary embodiment is not particularly limiting, but can be modified in many respects according to the conditions and requirements of the particular application.

Although not shown in the exemplary embodiments, screw holes can be formed from the side of the floor frame 4 by means of which it is possible to screw the peripheral floor frame 4 into the retractable sections, thereby providing additional securing of the wall elements in the vertical direction.

In a further embodiment, the recesses may be formed by drilling or milling in the floor having the necessary thickness, so that the embodiment of the preceding examples is not limited to the floor structure of the pallet 1 formed by the floorboard with reinforcing strips. The depth of the recesses is controlled by the required stability of the wall construction.

The fixing rails and retaining rails can be placed at any location and depending on the number and type of objects to be conveyed.

The technical solution thus comprises a convenient transport container which is easy to assemble and create according to specific requirements.

Claims (14)

PROTECTION REQUIREMENTS Collapsible transport container, foldable flat and in particular formed in the form of a pallet with a supporting structure and attachable superstructures comprising a floor, in particular a pallet, and a group of walls, in particular two end walls and two side walls, mountable separately on the floor or pallet and provided with frame strips formed in such a way that in the areas of contact of two adjacent walls partially offset running surfaces with a shape corresponding to the type of profile are formed, characterized in that the floor or pallet (1) is provided with a peripheral floor frame (4) serving as a stop for the respective walls (20, 40, 60, 80), wherein recesses (11a, 11b, 11c, 11d, 12a) are formed in the floor or pallet (1) within the area bounded by the peripheral floor frame (4). , 12b, 13a, 13b) for insertion of corresponding insertion sections (22a, 23a, 24a, 42a, 43a, 44) a) formed on the walls (20, 40, 60, 80) to secure them against tipping moment. A collapsible transport container according to claim 1, characterized in that the adjacent walls (20, 40, 60, 80) are connected to each other by corner connectors which are fixed in particular to the upper corner region. Foldable transport container according to claim 2, characterized in that the corner connectors are formed by screwable angular elements (31, 32, 33, 34). A collapsible transport container according to claim 2 or 3, characterized in that the corner connectors are pre-fastened to two opposing walls (20, 40, 60, 80). A collapsible transport container according to claims 1 to 4, characterized in that the recesses (11a, 11b, 11c, 11d, 12a, 12b) are formed between the at least two reinforcing strips (6, 7, 8, 9, 10) and the floor. or pallet (1). The collapsible transport container according to claim 5, characterized in that the two stiffening strips (6, 10) are longitudinally and horizontally mounted on the floor frame (4) and are cut into the shape of an angular recess (11a, 11b, 11c, 11d) in each corner area of the floor or pallet (1). A collapsible transport container according to claim 5 or 6, characterized in that one stiffening strip (8) is arranged in the middle of the floor or pallet (1) and is provided with recesses (12a, 12b) defining between the faces of the stiffening stripes (8) and a circumferential floor frame (4) with a recessed gap. Foldable shipping container according to claims 1 to 7, characterized in that the walls (20, 40, 60, 80) comprise upper horizontal frame strips (21,41), a group of vertical frame strips (22,23,24,42,43), 44) and at least one inclined strut (25,45). A collapsible transport container according to claim 8, characterized in that the lower ends of the vertical frame strips (22, 23, 24, 42, 43, 44) are provided with sliding sections (22a, 23a, 24a, 42a, 43a, 44a). A collapsible transport container according to claim 8 or 9, characterized in that the vertical frame strips (22, 23, 24, 42, 43, 44) are spaced from the ends of the horizontal frame strips (21, 41) by the width of the bearing surfaces (35). , 48). -6EN 7923 Ul Foldable transport container according to claims 1 to 10, characterized in that the floor or pallet (1) and / or the at least one wall (40, 60, 80) is provided with at least one fixing strip (17, 18, 27). provided with clamping grooves (19, 28) for clamping the conveyed objects. 5 A collapsible transport container according to claims 1 to 11, characterized in that it is provided with a locking device for arresting the insertion sections inserted into the recesses in a vertical direction. A collapsible transport container according to claim 12, characterized in that the locking device is formed by bolted connections with bolts (50) movable from the side corresponding to the holes in the floor frame (4). A collapsible transport container according to claim 12, characterized in that the locking device is formed by a latching device.