DE102007029532A1 - Plastic container for transporting and storing goods, has plate from plastic welded on base lower sided in middle area, where area of plate is smaller than base area, whose center coincides with center of base area - Google Patents

Abstract

The container (1) has base flat in an unloaded condition and side walls rising from the base, where the base is provided with a corrugated structure in diamond-shaped on a lower side. A plate (6) from plastic is welded on the base lower sided in a middle area, and an area of the plate is smaller than the base area, whose center coincides with the center of the base area, so that a free edge area remains with corrugated structure (4). The plate is reduced to a narrow strip, which forms a cover of a reinforcement packing that is inserted into a recess in a tank bottom.

Description

The The invention relates to a plastic container for transport and for storage of goods with one in unloaded condition level ground and walls rising from this ground, the bottom on its underside with an approximately diamond-shaped Rib structure is provided as a reinforcement.

Such containers are for example from the DE 29615303 U1 or the CH 683087 A5 known. In these known containers, a plastic plate is welded as additional reinforcement on the underside of the bottom, wherein the rib structure is either completely covered ( CH 683087 A5 ) or only the border area ( DE29615303 U1 ).

The welded plate should together with the rib structure prevent a stored in a warehouse and loaded Container in the bottom area so deflected that he at a transport on a roller conveyor rests only selectively and dances uncontrollably.

Of the Disadvantage in the production of the prior art containers, which takes place on injection molding machines, lies in the fact that the welding of the plate can take place only when the container after demolding and cooling has experienced a shrinkage process to the nominal size.

The means that the entire manufacturing process through this Interruption time-consuming and therefore more expensive.

Of the Invention is therefore the object of a container of the type mentioned above in such a way that it with sufficient reinforced soil produced in a much shorter time can be.

The Invention proposes to solve this problem, that on the bottom bottom in its central area a plate made of plastic, whose surface is welded is less than the bottom surface itself, its center but coincides with the center of the floor area, so that a free edge area with ribbed structure remains.

Consequently results in the production of the advantage that the plastic plate welded directly to the injection molding machine without waiting for the shrinkage process got to.

This partial double bottom created in the central area gives the container sufficient stability and rigidity and offers In addition, the advantage of material savings.

According to one preferred embodiment of the invention is the plate welded in a molded into the rib structure sink the height of the ribs towards the sink is at an acute angle drops.

there can according to another embodiment the plastic plate be widened laterally, with these widenings pulled up at the obliquely rising sink edges and are welded on. These are, for example, the opposite longitudinal side edges pulled up the plate and welded what in terms advantageous for the vibration welding used here is.

The plate is preferably cambered, so that it forms a flat support on the roller conveyor when the container is loaded. In this case, the crowning radius can be made smaller than in one of the CH 683087 A5 known raised floor, since the heel between the outer ribbing and the welded area can be larger.

The Plate does not need the entire surface of the sink take. According to claim 6, the plate also be reduced to a strip that covers the cover in a recess in the container bottom inserted reinforcement profile forms, wherein the recess from one bottom edge to the opposite runs. The strip is on the Ausnehmungsränder welded. Thus, this strip-shaped Plate not only as cover but also as additional Reinforcement (partial raised floor).

there The profile can be parallel to the shorter ones through the bottom center Bodenseiten run (claim 7).

It but can also be parallel to the long sides through the center of the soil (claim 8).

After all it is envisaged that the gain will also be diagonal from a corner of the ground to the other corner of the floor runs.

The The invention will be explained with reference to the drawings.

It demonstrate:

1 Container bottom in a broken view

2 Container bottom in section

3 modified embodiment of Be container bottom in sectional view

4 Container in bottom view with diagonal reinforcement

5 Detail view of the diagonal reinforcement

6 Container in view according to 4 with transverse reinforcement

7 Container in view according to 4 with longitudinal reinforcement

In the drawings is a plastic container with the bottom 2 shown at the top and generally with the reference numeral 1 Mistake. From the ground 2 increase in the present embodiment according to 1 . 4 . 5 . 6 and 7 four side walls 3 at right angles.

The bottom of the floor 2 is for stiffening with a diamond-shaped rib structure 4 provided a rectangular depression 5 surrounds, in which there is a welded plastic plate 6 located, which is cambered designed.

The rib structure 4 falls off a level area 7 to the valley 5 at an acute angle.

In the second embodiment according to 3 is the plastic plate 6 widened laterally and pulled up at the obliquely ascending sink edges. Also these extensions 6 ' are welded to the ground (by vibration welding).

In the 4 to 7 Embodiments are shown in which the plate 6 reduced to a strip that has a reinforcing profile 8th covering, which in a corresponding recess 9 with margins 10 is inserted. The strip-shaped plate is on the side edges 10 welded.

The recess 9 and thus also the strip-shaped plate 6 runs in each embodiment through the center of the ground and in accordance with 4 and 5 diagonally from one floor corner to the other, according to 6 across and parallel to the shorter bottom sides and according to 7 along, ie parallel to the longitudinal sides of the container 1 ,

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 29615303 U1 [0002, 0002]
• - CH 683087 A5 [0002, 0002, 0012]

Claims (9)

Plastic container for the transport and storage of goods with a level in the unloaded ground and rising from this floor side walls, the bottom is provided on its underside with an approximately diamond-shaped rib structure, characterized in that on the bottom bottom in the central region of a plate ( 6 ) is welded from plastic whose surface is smaller than the bottom surface itself, but whose center coincides with the center of the bottom surface, so that a free edge region with rib structure ( 4 ) remains. Plastic container according to claim 1, characterized in that the plate ( 6 ) is formed cambered. Plastic container according to claim 1 or 2, characterized in that the plate ( 6 ) into a rib structure ( 4 ) molded sink ( 5 ) is welded. Plastic container according to claim 3, characterized in that the rib structure ( 4 ) from a plane area ( 7 ) at an acute angle to the sink ( 5 ) drops. Plastic container according to one of claims 1 to 4, characterized in that at least two opposite side edges ( 6 ' ) of the plate ( 6 ) at the rising edges of the sink ( 5 ) are pulled up and welded. Plastic container according to one of claims 1 to 4, characterized in that the plate ( 6 ) is reduced to a narrow strip, the cover of a in a recess ( 9 ) inserted in the container bottom reinforcing profile ( 8th ), wherein the recess ( 9 ) runs from one bottom edge to the opposite. Plastic container according to claim 6, characterized in that the recess ( 9 ) runs parallel to the shorter bottom side edges. Plastic container according to claim 6, characterized in that the recess ( 9 ) runs parallel to the longitudinal floor sides. Plastic container according to claim 6, characterized in that the recess ( 9 ) runs diagonally from one floor corner to the other floor corner.