DE102007056255A1 - Plastic transport box with foldable sidewalls - Google Patents

Abstract

The tote box has a base (1) and side walls (2,3), and is made of plastic. The side walls are moving inward, and are held by a bolt (7) in perpendicular position. The side walls carry flexibly displaced bolt and carry the locating bar (6). The locating bar grips the side walls from inside and supports these from back wards. The side walls are adjacent to the locating bar. The locating bar is provided with springy release lever (11) during lying of side walls, and the release lever is placed in the openings of the side walls.

Description

The The invention relates to a transport box made of plastic, the a bottom and inwardly foldable sidewalls consists of bars in held upright position, with two opposite side walls on the outside edges carry a stop bar against which the adjacent side wall strikes at her righting.

Such transport boxes be everywhere used where the return transport with the boxes need less volume to save freight costs.

Such transport boxes has been around for decades. They were always in a loaded condition a bit shaky, because it never succeeded, really tight closures for coupling two side walls to construct one another in the box corners. These shutters passed often from several loose parts that had to be stuck together and of which only part lost part, what the whole Made box useless.

The Invention avoids the disadvantages of the prior art. It is the object of the invention, a collapsible transport box to create, which is very stable and robust, easy to fold and is easy to rebuild and its closure parts firmly and captive in the one piece by injection molding manufactured walls are integrated.

Of the inventive transport box records characterized by the fact that the the stop strips bearing side walls resiliently displaceable bolt wear, which from behind behind the on the stop strips adjacent side walls grab and support them from behind while holding on to the stop strips adjacent side walls are provided with resilient Entriegelungshebeln in recesses of these side walls are housed and attached to their free ends wedge surfaces lie against the bars.

at this shot to Coupling two side walls together All parts are in one piece with the side walls producible and thus captive. They lie in recesses of Sidewalls, like that that she not by external influences can be canceled. This makes this transport box very robust. The closures require only when Merging the box of an operator by pressing a Levers, when re-erecting the side walls after a vacuum transport however, is on the closures no need for a handle, they snap themselves into position for a transport of goods.

The happens by means of wedge or inclined surfaces on the levers. In fact is appropriate the wedge surface on each release lever on a likewise wedge-shaped projection of the bolt, behind the release lever bearing side wall with the release levers summarizes.

there are on the transport box in the area of the release lever in the side wall holes are provided, which provide access from the outside to the release lever allow.

These holes are expediently on its outside surrounded by ribs so as not to inadvertently gain access to the Unlocking levers can be done.

These Entriegelungshebel be from the outside, for example by the Pressure from in the two holes put the thumb stuck thumbs in their unlocked position, whereupon the side wall can be folded inwards.

The free end of each unlocking lever is in the supervision expediently triangular or trapezoidal designed, with the outer Sloping surface on the bolt rests or attacks, so when setting up of the empty transport lying flat side walls the Locking automatically he follows.

there it is advantageous in this transport box when the bolt with the lever carrying it in a recess of the side wall carrying it is housed, in which he through the wedge-shaped free end of the release lever hineindrückbar is.

The is best possible if the wall thickness the side walls the transport box is sufficiently thick to the locking and unlocking lever to absorb.

These Wall thickness is in the transport box according to the invention achieved by the side walls in its middle area by two floor parallel and in cross section U-shaped Lasts and intervening perpendicular to the ground running wavy Wall parts are formed.

These wavy Wall parts are made of several perpendicular to the floor stripes formed, with between oblique running strips each side wall parallel strips at the front and at the back the side wall are arranged.

at This transport box, it is advantageous that the latch and release lever one piece are made with the transport box, which is achieved, that no Item can be lost.

One Another advantage of this transport box is that the release lever and the lever carrying the bolt are so long that they are resilient can be pivoted from their rest position to their working position.

In addition, can still be provided that on Places where two side walls abut each other, guiding devices are attached.

The Essence of the invention is described below with reference to a in the drawing illustrated embodiment explained in more detail. It demonstrate:

1 a perspective view of the transport box.

2 a cross section through a box corner in the locked state.

3 a cross section through the box corner in the unlocking state.

4 a perspective view of this box corner in the locked state.

5 a section through this perspective view of the box corner.

6 a cross section through this box corner in the unlocking state.

The transport box consists of a floor 1 and four side panels hinged inwards 2 . 3 , These are on the ground by joints 4 . 5 attached to the inside hinged.

The long side walls 2 wear stop strips on their faces 6 in which, in the erected state of the transport box, the front side walls 3 issue. The long side walls 2 are with pivoting bars 7 equipped, which are the front walls 3 supported from the inside in their upright position. Thus, the erected end walls are from the outside by the stop strips 6 and from the inside through the bars 7 fixed in its upright position.

The bars 7 are at the end of one piece with the long side wall 2 shaped springs 8th attached and lie in openings 9 the long side wall 2 , The bars 7 can by two bent surfaces 9 at the free end of the spring 8th be formed.

To lock this transport box, the bolt 7 not having to push your fingers away and putting your fingers at risk when flipping the face wall 3 is in the frontal wall 3 a release lever 11 in an opening 12 accommodated, whose free end is bent several times, to the outside a trough 13 for the support of an externally on the resilient release lever 11 pressing finger and an inclined surface 14 for the plant and pushing away the latch 7 forming bent free end of the spring 8th to build. The release lever 11 is from the outside by the pressure of a through the hole 15 inserted and thereby on the release lever 11 crouching finger pressed.

From the bent end faces of the spring 8th meets the perpendicular to the spring 8th standing end face 16 the locking function, while the inclined surface 17 as a contact surface for the free end of the release lever 11 serves when the, front wall 3 is raised from its ground-parallel position.

In this case, the wall thicknesses are designed so thick that the listed levers 8th . 11 in it in wall openings 10 . 12 can be accommodated. Since this wall thickness can not be performed in solid plastic, the side walls are in their central region by two floor-parallel and cross-sectionally U-shaped bars 18 and intermediate wave-shaped wall portions extending perpendicular to the floor are formed. These wavy wall parts are made of several perpendicular to the ground 1 running stripes 19 . 20 are formed, wherein between inclined strips 19 each sidewall parallel stripes 20 at the front and at the back of the sidewall 2 . 3 are arranged.

1

ground

2

Longitudinal side wall

3

End wall

4

joint

5

joint

6

stop bar

7

bars

8th

feather

9

bent free end of the spring 8th

10

opening

11

release lever

12

opening

13

trough

14

sloping surface

15

hole

16

end face

17

sloping surface

18

U-shaped bar

19

sloping strip

20

sidewall parallel strip

Claims (12)

Plastic transport box, consisting of a bottom and inwardly foldable side walls, which are held by bolts in an upright position, with two opposite side walls carry at their outer edges a stop bar against which the adjacent side wall strikes when erecting, characterized in that the Supporting side walls bearing resiliently displaceable bolt, which engage from behind the adjacent to the stop bars adjacent side walls and support them from behind, while the voltage applied to the stop bars side walls are provided with resilient Entriegelungshebeln, which are housed in recesses of these side walls and with their bear free ends attached wedge surfaces on the bars. Transport box according to claim 1, characterized that the wedge surface on each release lever on a likewise wedge-shaped projection the bolt rests behind the release lever bearing Side wall with the unlocking levers summarizes. Transport box according to claim 1, characterized that in the Area of release lever provided in the side wall holes are that allow access to the release lever. Transport box according to claim 3, characterized that these holes on its outside prevent inadvertent access to the unlocking levers Surrounded by ribs. Transport box according to claim 1, characterized that this free end of the release lever in supervision triangular or trapezoidal or dome is designed, wherein the outer inclined surface on the bolt is present or attacks. Transport box according to claim 1, characterized that the Latch with the lever carrying it in a recess of the side wall carrying it is housed, in which he through the (wedge-shaped) free end of the release lever hineindrückbar is. Transport box according to claim 1, characterized that the Wall thickness the side walls is sufficiently thick to the lock and unlock lever in to take up. Transport box according to claim 1, characterized that the side walls in its central area by two floor-parallel and in cross-section U-shaped strips and intervening wave-like wall portions extending perpendicular to the floor are formed. Transport box according to claim 8, characterized that these wavy Wall parts made up of several strips running perpendicular to the floor are formed, wherein between oblique strips each Sidewall parallel stripes at the front and at the back the side wall are arranged. Transport box according to claim 1, characterized that the Latch and release lever integral with the transport box are made. Transport box according to claim 1, characterized that the Release lever and the lever carrying the latch are so long that she resiliently pivotable from its rest position to its working position are. Transport box according to claim 1, characterized that on Places where two side walls abut each other, guiding devices are attached.