DE8235047U1 - Dimensionally stable box made of a lower part of the box and a plastic cover - Google Patents

Description

YOUR SIGN YOUR LETTER FROM OUR SIGN D-3400 QÖTTINQEN, YOUR REF. YOUR LETTER OUR REF. WTTERWEQ 6

11.301 / AS5 11/29/1982 Brause GmbH & Co. Brause-Strasse 13 - 17, 5860 Iserlohn

Dimensionally stable box made of a box base and a slip lid made of plastic

The invention relates to a dimensionally stable box with a box base and a slip lid made of plastic, the bottom part of the box starting from its bottom and extending approximately over the entire height of the box has walls that are smoothly continuous on their inside over the height, on their outside a step have and then with a circumferential edge of reduced wall thickness for receiving the lid edge of the slip lid are provided. Such dimensionally stable boxes consist of the box base and the slip lid, both of which are designed as molded plastic parts. Such Boxes are used to hold and transport a wide variety of small parts, for example tabs for card index boxes, Writing and drawing pens, screws and nuts and the like.

The known boxes of the specified type are filled when they are used in such a way that the goods in the box base is introduced. The lower part of the shell is owing to the side walls extending approximately over the entire height of the box are able to accommodate the goods. An Ä then the slip-on lid is put on from above, with the lid edge being pushed onto the circumferential edge in the area of the side wall of the lower part of the box ". Finally, the free edge of the lid edge settles of the slip lid on the step on the outside of the box base, so that the slip lid is aligned Occupies closed position. An adhesive strip is usually used to fix the slip lid to the bottom part of the box. from the outside more or less circumferentially around the interface between the slip lid and the box base, i.e. along the Step is applied so that it has at least both parts with its width, so the side wall in the lower region of the The box base and the lid edge of the slip lid are each painted over by a certain amount. Serves in this fixed form the box to the transport of the goods. The user must now, in order to get to the contents of the box, peel off the adhesive strip and can then pull off the slip lid from the bottom part of the box. Should the box then be closed again the adhesive strip can be used again after the slip-on lid has been put on, provided it is not unusable has become. A multiple use of the adhesive strip to fix the slip lid to the box base is usually not possible, as the adhesive strip can twist slightly during use and its adhesive strength as a result repeated peeling and re-attaching.

The invention is based on the object of developing a box of the type described at the outset so that it can be fixed of the slip lid on the bottom part of the box

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an adhesive strip is unnecessary and also the multiple fixation of the slip lid on the box base and the Loosening the fixation poses no difficulties.

According to the invention this is achieved in that the box base approximately in the middle of two opposite side walls in the area of the circumferential edge directed outwards Has latching projections that are spaced apart from the step

/ ν are ordered that on the inside of the lid edge of the Slip-on lid associated with the locking projections depressions or openings are provided, and that the two are the locking projections supporting side walls are elastically deformable by the application of force, that the locking projections from the recesses or breakthroughs come free. The invention is based on the idea of fixing the slip lid on To effect box base on these two parts of the box itself. There are locking projections and corresponding Arranged depressions or openings that secure the fixation in the unloaded position, on the other hand through Force application in a targeted direction can be canceled. The parts of the box are made of plastic and are in

() Injection molding process, so that the box is dimensionally stable is, however, the side walls or the edge of the box lower part and the lid edge of the slip lid so elastic are deformable that a locking and unlatching is possible and guaranteed. This training also brings in the Packaging of the goods advantages, because the slip lid only has to be placed on the lower part of the box and the additional There is no need for an adhesive tape to be attached. The handling of the box by the user is also simplified, by either applying pressure or applying tension, the force can be applied in such a way that the locking projections are off the depressions or perforations can emerge, so that the slip lid can be pulled off the lower part of the box can.

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The locking projections can be on their side facing the step an undercut running approximately parallel to the step and have a slide ramp on their side facing the free edge of the edge of the side wall. The Gleitrainpe is used easier placement of the slip lid on the bottom part of the box. Apart from the pushing-on movement, no directional force needs to be used because the elasticity between the circumferential edge and the lid edge are completely sufficient to guide the locking projections so far past the circumferential edge, until they can enter the depressions or recesses. It goes without saying that the arrangement of the locking projections on the one hand and the arrangement of the depressions or openings on the other hand on the box base on the one hand and on the other hand, can also be interchanged on the slip lid. The undercut secures the fixed position of the hooded cover on the bottom of the box. If it is parallel to the step, pressure is applied to release the fixed position required that are directed against each other, for example with the thumb and middle finger on the central area of the Side wall of the box lower part acts so that these two side walls of the box lower part relative to Curve the lid slightly inwards. It is useful to arrange the locking projections on the two longer side walls, provided it is a rectangular box.

The lid edge can only reduce the wall thickness of the circumferential edge of the box base to the rest Side wall have corresponding wall thickness, so that as it were the edge of the lid of the slip-on cover the circumferential edge of the Supplemented the bottom part of the box and thus one more both on the inside and on the outside of the side wall or less continuous surface is achieved. But it is by no means harmful if the edge of the lid over the step something protrudes to the outside; in this case, the gripping of the slip lid is made easier relative to the box base.

The dimensioning of the wall thickness can also be chosen so that that the elastic deformability is distributed over both parts of the box or only on one of the same.

On the outside of the side wall below the locking projections a free space can be provided so that the corresponding one adjoins the recess or opening Wall part of the lid edge can assume its proper position in the fixed position.

The invention is further described and explained with the aid of a few exemplary embodiments. Show it:

1 shows a side view of the bottom part of the box and the slip lid in a first embodiment,

Fig. 2 shows a section through the box according to the section II-II in Fig. 1,

3 shows a half-sectional view on an enlarged scale in a further embodiment and

4 shows a similar illustration of a further training option .

In Fig. 1, the two essential parts of the box, namely a box base 1 and a slip lid 2 are shown, both of which are shown one above the other, i.e. not yet in the pushed-on or fixed position. The bottom part of the box 1 has a bottom 3, from which one opposite one another arranged side walls 4 and 5 extend circumferentially upwards, which make up almost the entire height of the box. On the inside, the side walls 4 and 5 are smooth and continuous over the height, while they are on the outside have a circumferential step 6. At this point

occurs a reduction in the wall thickness of the side walls 4 and 5 and a circumferential edge 7 is formed upwards, which for example half the wall thickness of the side walls 4 and 5 below the step 6 can have. It can be seen / like that Edge 7 is arranged recessed following the step 6.

The slip lid 2 has a cover part 8, on which in one piece a circumferential lid edge 9 is provided which has at least the height of the edge 7, so that its free edge 10 after Sliding the slip lid 2 onto the bottom part of the box 1 on level 6. This is a clear limitation given the slide-on movement of the slip lid 2 onto the box bottom part 1.

For the detachable fixation of the slip lid 2 on the box bottom part, the two longer ones are preferably in the middle area Side walls 5 and that in the region of the edge 7 each one or more locking projections 11 provided or formed, which in the The embodiment of FIGS. 1 and 2 protrude outward. Each locking projection has a slide ramp 12, the free edge 10 of the Slip lid 2 facing, and an undercut 13, which, as can be seen in particular. From Fig. 2, with its area approximately is arranged parallel to the stage 6. The locking projection 11 is arranged at a distance from the level 6. Corresponding to this, an opening 14 is provided in the lid edge 9, which has a locking surface 15 which corresponds to the undercut, so that the locking surface 15 and the undercut 13 hook onto one another in the attached and fixed position of the slip-on lid 2 on the bottom part of the box. The fixed position cannot be canceled by simply pulling the slip lid 2 off the box lower part 1. For this purpose, it is rather necessary to elastically deform the side walls by applying pressure from the outside and afterwards to bend slightly inside, so that the RastvorSprünge 11 of

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de: n breakthroughs 14 free. Here, the slip lid 2 is withdrawn upwardly from the box lower part 1, so that the packaged goods in the box can be accessed simultaneously. When putting the slip-on cover 2 back on the lower part 1, the pressure application described can be dispensed with. For this purpose, the slide ramp 12 is provided, which automatically resiliently deforms the edge 7 or the cover edge 9 until the free edge 10 touches the step / \ during the pushing-on movement and the locking projections 11 engage in the openings 14.

3 and 4 are further embodiments of the box shown, the wall thickness compared to the other geometric dimensions is increased comparatively more to the Better display details. According to FIG. 3, the locking projections provided there, which are also arranged several times can, pimple or point-like shape. In the area of the lid edge 9, associated depressions 16, which have the function of openings 14, are provided here. The parts sir /? in the Shape adapted to each other. In this case, it is also necessary to push the slip lid onto the box base 'Apply already described pressure force according to arrow 17 to also to achieve the elastic deformation of the side walls 5 when put on. The free edge 10 or the "lid edge 9" can be larger Have wall thickness than corresponds to the depth of level 6. Such a training makes it easier to grasp the hood 2 and thus the removal of the same during the application of pressure according to arrow 17.

The embodiment according to FIG. 4 shows a flatter design and an inverted arrangement of the locking projection 11 and the recess 16. The recess 16 is provided in the area of the edge 7 and the locking projection 11 is provided in the area of the lid edge 9. The shape is chosen to rise very gently, so that a pressure application according to arrow 17, (Fig. 3), is unnecessary and a pulling application according to the arrows 18 is sufficient .

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to solve lid 2 from the box base 1, the side walls 5 and the lid edge 9 spring open elastically. It goes without saying that the placing of the slip lid 2 on the box base 1 takes place by applying force opposite to the arrows 18.

List of reference symbols

1 = lower part of the box

2 = slip lid

3 = bottom

4 = side wall

5 = side wall

6 = level

7 - edge

8 = cover part

9 = edge of the lid 10 = edge

11 = locking projection

12 = sliding ramp

13 = undercut

14 = breakthrough

15 = locking surface 16 = recess

17 = arrow

18 = arrow

Claims (4)

* a • »Protection claims: 1. Dimensionally stable box with a box base and a Snap-on lid made of plastic, with the bottom part of the box from outgoing from its bottom, extending approximately over the entire height of the Box has extending side walls on its inside are formed smoothly continuously over the height, have a step on their outside and adjoin it Q are provided with a circumferential edge of reduced wall thickness for receiving the lid edge of the hooded lid, thereby characterized in that the box lower part (1) approximately in the middle of two opposite side walls (5) in the area , $ of the circumferential edge (7) outwardly directed locking projections (11), which are arranged at a distance from the step (6) that on the inside of the lid edge (9) of the hooded lid (2) the detent projections (11) associated recesses (16) or Breakthroughs (14Ϊ are provided, and that the two the Latching projections (11) supporting side walls (5) by application of force are elastically deformable in such a way that the locking projections (I 1) from the recesses (16) or openings (14) get free. 2. Box according to claim 1, characterized in that the locking projections (11) on their side facing the step (6) has an undercut (13) extending approximately parallel to the step (6) and on their free edge of the edge (7) the side facing the side have a slide ramp (12). 3. Box according to claim ^, characterized in that the Lid edge (9) only one of the reduction of the wall thickness of the circumferential edge (7) of the box base (1) to the rest Side wall has corresponding wall thickness. 4. Box according to claim 1 bj.s 3, characterized in that a free space is provided on the outside of the side wall below the locking projections (11). I 1 1