DE3302087C2 - Folding box that can be changed in width and length - Google Patents

Abstract

In order to facilitate the packaging of objects of different sizes and to save unnecessary packing material (Styrofoam snippets, paper etc.), time, transport space, transport costs, with the previously necessary large number of cardboard boxes of various sizes and types, the "width and length-adjustable folding cardboard" is expanded in length and width the exact size of the goods to be packed pushed together so that there is no free space between the goods and the box. This is achieved by means of a "folding box that can be changed in width and length", which consists of four parts, two of which have the same properties. Two different parts are pushed into one another in such a way that a closed, square plan is obtained, which can be changed in length and / or width by pushing apart and / or one inside the other. (e.g. max. basic size 42 x 30 cm to min. basic size 23 x 17 cm).

Description

At the two border points (18 + 19) between the bottom flaps (17-17 ') and the side and End walls (20 + 21) and the lid closure flaps (15-15 ') and the side and end wall (20-21) the parts 11 are simply grooved

The total length fL ^ derTeile II extend above a side wall (20) and an end wall (21), each reduced by twice the thickness of the material to be used Material in relation to the side wall (7) and the end wall (8) of part I.

The bottom flaps are located at the boundary between the side wall (20) and the end wall (21) (17-17 ') and cover flaps (15-15') up to the grooves (18 + 19) in at least twice the material thickness punched or cut (22 + 23). The incisions (22 + 23) are connected by a groove (24).

The corners (25) of Part II should be rounded to make it easier to slide them into one another later.

The parts II are with their side walls (20) and the adjacent closing flaps (15, 17) in the cavity (14) between the side walls (7 \ and the closing flaps (2, 4) of the parts I and each end wall (21) with the adjoining closure flaps (15 ', 17') of parts II inserted into the free space (14) between the end walls (8) and closure flaps (2 *, 4 ') (FIGS.! and 2).

The result is a self-contained, tubular folding box that can be changed in width and length with adjustable bottom and cover flaps.

For this purpose 2 sheets of drawings

35

40

45

50

55

60

65

Claims (3)

Patent claims: 1. Width and length adjustable folding box made of four parts, of which two first parts and each two second parts are formed identically and each part contains a side wall and an end wall, the are connected to each other via a crease line, whereby the four parts are arranged alternately in such a way that that the side wall of each part on the side wall of every second part and the end wall of each first Partly on the end wall of each second part rest securely against one another, furthermore against one another adjacent side walls or end walls perpendicular to the folding lines can be displaced relative to one another are characterized by - That on the side walls (7, 20) and end walls (8, 21) above fold lines (5, 19 and 6, 18) bottom closure caps (4, 4 'and 17, 17') and cover flaps (2, 2 'and 16, 16') are hinged which are separated by slots (9, 10 and 22, 23), - That the first parts I have two layers in the form of a hose part provided with an adhesive seam (1) are formed, this hose part on the free, parallel to the fold lines (5, 6) running edges (12, 13) is closed and a free space between the two layers (14) remains in the thickness of the cardboard material, - That the total height (ffJ of the second part II corresponds to the clear width d *; s free space (14) of the first part I and - That each side wall (20) with the adjacent closure caps (15, 17) of the parts H in the Free space (14) between the side walls (7) and closing flaps (2,4) of the parts I and each End wall (21) with the adjoining closure flaps (15 ', 17') of parts II into the free space (14) is inserted between the end walls (8) and closing flaps (2 ', 4'). 2. Folding box according to claim 1, characterized in that - That the length (L) of part II is twice the material thickness shorter than the length of part I. 3. Folding box according to claim 1, characterized in that - That the slots (9, 10, 22, 23) between the Closing flaps have a width of twice the material thickness. The invention is based on a known folding box for general packaging purposes according to the preamble of claim 1 (GB-PS 6 14 079). It is common that for packaging materials of various shapes and sizes, cardboard boxes of the most varied Shape and size can be made. In daily use, folding boxes are made according to DIN sizes manufactured and brought to use. The "width and length adjustable folding cardboard" mentioned at the beginning makes it possible to use a wide variety of materials Packing shape and size in one and the same box because its base is Lets change length and width However, this container has no closure flaps and is therefore not suitable as a shipping box It is also necessary for this container - the individual Parts that make up the container by separate loosen. To hold clamps etc together and to fix. Also a considerable amount of time is needed to build this container time and manual effort required. Finally, there is a risk of the eyelets tearing out, which would result in the container falling apart. Furthermore, a carton is known (US Pat. No. 4,295,599) in which the front and back parts can be folded out of guide pockets up to a certain angle in order to increase the volume of the carton. The real purpose of this box is to make it easier to pack and unpack a compact item.
The invention is based on the object of expanding the aforementioned "width and length variable folding box" (GB-PJ "6 14 079) so that it can be used as a shipping box without additional fixing means The advantages achieved with the invention exist in particular in the fact that the "width and length changeable folding carton" is adapted to the size of what is to be packed Good can be adjusted and thus time, space, packing materials and costs can be saved can. Advantageous further developments are in the claims marked An embodiment of the invention is shown on sheets 1 and 2 of the drawings and is described in more detail below. The tubular folding box, which can be changed in width and length, is also included variable bottom and cover flaps consists of two parts I (Fig. 4 + 5, sheet 2) and two parts II (Figs. 6 + 7, sheet 2). The parts I are double in their full height. On a protruding piece that folded inwards the parts I are glued together. The folds (12 + 13) must be placed so that a cavity (14) arises in the strength of the material used. The total height of the parts Ϊ extends over the cover flaps (2—2 '), side and front wall (/ + 8) and bottom flaps (4—4'). On both of them Boundary points (5 + 6) between side height (7 + 8) and cover flaps (2—2 ') and side and front wall Grooves (7 + 8) and bottom flaps (4—4 ') are provided which are either double or wide are executed. The total length of the parts I extend over a side wall (7) and an end wall (8) of the box, meaning the smallest possible width of the box. At the border between Side wall (7) and end wall (8) become the cover flaps (2-2 ') and bottom flaps (4—4 ') punched or punched up to the grooves (5 + 6) in at least the thickness of the material used incised (9 +10), and connected by an equally wide or double groove (11). The total height (H) of the parts II corresponds to the clear width of the free space (14) of the parts I.