DE8224279U1 - Fastener - Google Patents

Description

TlEDTKE - BüHLING ·: -: KlNWE

f \ _n . ' lfs. ''',', : *::. · Dipl.-lng. H. Tiedtke

WRUPE - PELLMANN'- '«RAMS! Dipl.-Chem. G. Bühling

Dipl.-lng. R. Kinne Dipl.-Ing. R group

_ 4 _ Dipl.-Ing. B. Pellmann

Dipl.-lng. K. Grams

Bavariaring 4, Postfach 20240 8000 Munich 2

Tel .: 089-539653

Telex: 5-24 845 tipat

cable: Germaniapatent Munich

August 27, 1982 DE 2326

Corrugated cardboard factory Kunert & Söhne GmbH & Co.

8740 Bad Neustadt / Saale

Connecting element

The invention relates to a connecting element for connecting a corrugated cardboard part with an attachment part to be attached.

It is sometimes necessary on a piece of corrugated cardboard, for example a wall or a floor of a folding box made of corrugated cardboard to attach another part, which is referred to here as attachment part. This attachment part can be, for example, a board that is added to the corrugated cardboard part to stiffen it, or a Act foot part, which is attached to the folding box to complement this to a pallet box. Such an attachment part is known to stick to the corrugated cardboard part. It is also known that the attachment part to be attached to the corrugated cardboard part using fasteners, which are designed as wire clips. Connecting with help however, wire staples require a relatively large amount of work and only leads to connections that can easily be torn out. It is also known to use cardboard sleeves or fasteners -to form envelopes, which in turn are glued to the corrugated cardboard part or are clipped and into which the attachment is inserted. However, the last-mentioned connecting elements are not very robust. aside from that they increase the manufacturing effort during manufacture, for example the folding box to which they are attached.

Dresdner Bank (Manchen) Account 3 939 844 ·. .Baiter NJärMns ^ ailt ^ Münchefi) κίά & ίβ '& Ι Postscheck (Munich) Klo 67l> 43 804

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The invention is based on the object of a connecting element of

To create generic type that makes it possible to attach the attachment If to connect with the corrugated cardboard part in a simple and reliable way, whereby the costs caused by the connection should be as low as possible.

This object is achieved according to the invention by a connecting element, which is characterized by a plate and a ring part which is connected to the plate, the opening delimited by the ring part has such an extension that at one side of the cardboard part adjacent plate and inserted through a hole in the corrugated cardboard part Ring part, the opening is sufficient for inserting the attachment part.

The connecting element according to the invention only requires the cardboard part a hole through which the connector can be inserted. When the connector through the hole in the corrugated cardboard part is inserted and the plate rests against the corrugated cardboard part, forms the opening delimited by the ring part and the plate has an eyelet on one Side of the corrugated cardboard part through which the attachment piece is inserted can, whereby it is sufficiently held by the ring part with appropriate dimensioning of the same. This connection can can be produced quickly, is reliable and requires little effort when producing the corrugated cardboard part and when attaching the attachment part, because in the corrugated cardboard part only punched a hole or needs to be carved through the connecting element with his ring part is inserted.

In an advantageous embodiment of the invention it can be provided that the ring part and the plate in one piece with one another made of a plastic are made. This enables the connecting element to be manufactured in a cost-effective manner using conventional plastics processing techniques. However, the ring part and the plate can also be designed as separate parts that are snap-fitted are connected to each other. This makes it possible to remove the plate from one side of the corrugated cardboard part and the ring part from its other side.

• · «· f I

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to be attached from the rer side.

The distance between the edge of the opening of the ring part and that of the The side of the plate facing the edge is preferably equal to the thickness of the corrugated cardboard part plus the greatest thickness of the part: jsteckenden attachment part. In this way, a sufficient clamping can be achieved achieve the attachment part on the corrugated cardboard part by frictional engagement between the attachment part and the corrugated cardboard part.

In an advantageous embodiment of the invention, provision can also be made

be that the ring part has two legs connected at their first ends to the plate and a transverse web connecting the second ends of the legs and that each leg has a projection, the two projections in mutually opposite directions Have directions and wherein a recess is formed between each leg and the facing side of the plate. The projections are preferably designed in the form of a plurality of teeth and / or grooves which run in a straight line and extend over the entire width of the legs. This training enables a secure anchoring of the connecting element on the corrugated cardboard part, because the teeth and grooves on the leg can engage with one or more layers of the corrugated cardboard part.

Further advantageous embodiments of the invention are characterized in the subclaims.

The connecting element according to the invention is particularly suitable for attaching two or more foot parts to a folding box and thereby turning this into a pallet box or a so-called pallet box. box to complete. The foot parts are preferably made of two parallel and interconnected boards, the dimensions of at least one of the two boards being such, that it is through the connecting element in connection with the ground The eyelet formed of the folding box fits so that the connection from the

Connecting element, the board and the folding box

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Game has. With two connecting elements according to the invention, through each one end of a board of the foot part is inserted, can such a foot section can be attached to the cardboard box. If two or more such foot parts are attached to the bottom of the folding box, can on an additional pallet for transporting and / or stacking the Folding boxes are dispensed with because the bottom with the attached to it Foot parts themselves fulfill the function of a conventional pallet. When doing the two boards of each foot part like this are connected to one another that there are sufficient gaps between them, it is possible in a particularly favorable manner to use all four Sides of the cardboard box with a transport fork under the bottom of the To drive folding boxes. The connecting elements according to the invention allow thus the creation of a new and advantageous pallet box.

Another useful application for the inventive Fastener consists in using it to create vertical walls to stiffen folding boxes. In this case, the attachment part is, for example, a stiffening board that is essentially inside and / or outside is attached perpendicularly to a side wall of the folding carton, with it near its two ends by means of an inventive Connection element is secured. A folding carton stiffened in this way is more resilient when stacked.

Further features of the invention emerge from the following description an embodiment with reference to the Drawings. F.s show:

Figure 1 is a perspective view obliquely from above of a folding carton, on which with the help of connecting elements

ten footboards and stiffening boards are attached;

FIG. 2 shows a sectional view according to A-B in FIG. 1; Figure 3 is a view of a connecting element in a

• f * C

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Hole in a side wall of the folding box according to FIG. 1

is used;

FIG. 4 shows a plan view of the connecting element according to FIG 3; and

FIG. 5 shows a side view of the connecting element according to FIGS Figures 3 and 4.

_in Figures 1 and 2 show a folding box 2, to the underside or bottom of two leg parts 4 are fixed by means of connecting elements. 6 In addition, the two longer side walls 8 of the folding box are stiffened with the help of stiffening boards 10, which are connected to the respective side wall with the help of connecting elements that have the same design as the connecting elements 6,

with the help of which the foot parts 4 are attached to the folding box 2. Of the Folding box 2, together with the foot parts 4 attached to it, forms a pallet box or a so-called pallet box.

In the following, the connecting element 6 is first described with reference to the figures 3 to 5 explained in more detail, which is used to create an attachment part, for example the foot part 4 or the stiffening board 10 a Wellpappetei "!, for example at the bottom of the folding box 2 or on the side wall 8 to be attached.

The connecting element 6 comprises in the illustrated embodiment a flat plate 12 in the form of an elongated rectangle. In one piece with the plate 12 is a ring part 1 ″, which together with the plate 12 an "opening 16 is delimited. The ring part 14

3Q in turn consists of a flat crosspiece 18, which has the shape of a elongated rectangle and is arranged parallel to the plate 12, and two legs 20, each from one or the other Go out at the end of the crosspiece 18 and lead to the plate 12, so that each leg at its first end with the plate 12 and at his other, two-th end with the transverse web 18 is connected. Everyone who

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1 two legs 20 has a projection 22, the two

Projections 22 point in mutually opposite directions, namely 1 to the outside with respect to the opening 16. In this way there is a recess 24 between the top of the plate 12 and the flank of each projection 22 facing it. The flank of each projection 22 facing the plate 12 and thus the recess 24 is if with three teeth 26 and two of these limited grooves 28 are provided, f the teeth 26 and the grooves 28 extending in a straight line over j | extend the entire width of the respective leg 20 and essentially run parallel to the top of the plate 12. The other flank of each projection 22, ie the leg section lying between the tip of the respective projection 22 and the connection point of the leg 20 % with the transverse web 18, has a smooth one

I surface and runs obliquely outwards from the crosspiece, like

I 15 this can be seen in FIG. In the area between the teeth 26 and

ι; the grooves 18 on the one hand and the plate 12 on the other hand

% Legs as a smooth wall essentially perpendicular to plate 12.

f At the junction between each leg 20 and plate 12

■ fc 20, the plate 12 is provided with a stiffening rib 30, which in the

'! essentially in the plane of the section of the shank that is closest to the plate

y kels 20 and transversely to the longitudinal direction of the plate 12. aside from that

H is the plate 12 both on its upper side and on its un-

The underside is each provided with a stiffening rib 32, which is shown in

I 25 runs in the longitudinal direction of the plate 12 and in its center. At the Un-

p on the underside of the transverse web 18, two spacers 34 are integrally formed,

I: which make it easier to insert the attachment part into the opening 16.

jP As Figure 4 shows, the plate 12 is in all directions of the

f. 30 surface over the ring part. In other words, this means

ι: that the plate 12 in its plane in all directions over the outline

% of the projection of the ring part 14 protrudes into this plane.

Ί The connecting element 6 described above is - like Figure 3

: i '35 shows - in use in a hole in the respective corrugated cardboard part, both

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for example in the side wall 8, r, o inserted that the plate 12 rests with its upper side on one side of the side wall 8. The one adapted to the connecting element 6 and shown in dashed lines in FIG Hole 36 is dimensioned such that the edge delimiting the hole is arranged in the two recesses 24, which in turn has the consequence that the upper layers or layers of the illustrated Embodiment of double-walled corrugated cardboard that the side wall 8 forms, engage in the grooves 28, so that the connecting element 6 is anchored to the side wall 8 and cannot easily be pushed out of the hole 36 downward in FIG can. The provided with the teeth 26 and the grooves 28 Γ sank of the projections 22 extend over such a length that the The connecting element is not only suitable for a corrugated cardboard thickness, but for example, it is suitable for both two-corrugated cardboard and three-wall corrugated cardboard.

The smooth surfaces of the sloping leg sections between the projections 22 and the transverse web 18 facilitate the introduction of the connecting element 6 into the hole 36 from below in FIG The fact that the plate 12 projects in its plane on all sides over the projection of the ring part 14 and in this way in its plane also protrudes on all sides over the edge of the hole 36, provides additional protection against tearing of the connecting element 6 from the Corrugated cardboard part or the side wall 8.

The connecting element 6 described is preferably as a one-piece Plastic part formed.

As can be seen in FIG. 2, the folding box 2 has several bottom flaps 38 on. Holes 36, not shown, are formed in the bottom flap 38 on the left and right in FIG a connecting element 6 is inserted so that its ring part protrudes outwards, as is the case for two connecting elements 6 in FIG 2 can be seen. By the ring part and the plate of the connecting elements 6 and the outer sides of the bottom flaps 38 limit-

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th eyelets, one end of a board 40, which is part of the foot part 4, is inserted. The board 40 and thus the foot part 4 are in this way attached to the folding box 2 in the position as shown in FIGS. 1 and 2.

In addition to the board 40, a further board 42 belongs to each foot part, the has the same length and width as the board 40 and is arranged parallel to the board 40 at a certain distance. However, the board 42 has a different thickness than the board 40, the thicknesses of the two board ter 40 and 42 are determined so that one of these two board ter then fits snugly into the eyelet mentioned when the corrugated cardboard part consists of double-walled corrugated cardboard, and that the other board fits snugly into said eyelet when the corrugated cardboard part is made of three-walled corrugated cardboard. In the case shown in Figure 2, this is thinner board 40 put through the eyelets. For a thinner corrugated cardboard, which would leave a larger eyelet in the opening 16, that would Foot part 4 can be used in such a position that the board 42 rests against the bottom of the folding box 2 and with its ends through the eyelets is plugged. In this way, the same connections are suitable elements and the same foot parts for different corrugated cardboard Strength.

The two boards 40 and 42 are connected with the aid of intermediate pieces 44 firmly connected. The spacers 44 take care of the emergency manoeuvrable pallet height of the respective foot part 4 and are so angeord net that through the spaces between the spacers 44 and Conventional means of transport, for example a transport fork, can be introduced into the boards 40 and 42, specifically perpendicular to the plane of the drawing in FIG. 2. Furthermore, one of the intermediate pieces, namely the intermediate piece on the left in FIG. 2, arranged closer to the connecting element 6 assigned to it than the intermediate piece on the right in FIG. 2, so that the board 40 is in the eyes of the two connecting elements 6 can be moved sufficiently around the board 40 from one of the Fastening elements 6 to get free, or to the board 40 first insert one end into one of the connecting elements

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to be able to and then slide into the other connecting element 6 to be able to.

In the same way as above for either of the two Foot parts 4 is described and how this is also for the other foot part 4 applies, the stiffening boards 10 are also attached to the associated corrugated cardboard part, with several possibilities for this of which two are shown in FIGS. The same are used to fasten the stiffening boards 10 to the side walls 8 Connecting elements 6, as they are also used to connect the foot parts 4 serve with the folding box 2. Figure 1 shows that a stiffening board 10 on the outside of the side wall 8 of the folding box can be arranged, in which case the plates 12 of the connecting elements 6 are arranged inside the folding box 2. Figure 2 shows that the stiffening boards 10 on the insides of the side walls 8 can be arranged, in which case the plates 12 of the connecting elements 6 are arranged on the outside of the folding box, such as Figure 1 shows this.

As can be seen from the above description, the connecting element 6 according to the invention is an easy-to-use, versatile one applicable element, the applications of which are not limited to those described. In connection with a folding box and Foot parts results in the connecting element described a very Appropriate pallet box, in which the foot parts are preferably made Are made of wood.

Claims (16)

1. Connecting element for connecting a corrugated cardboard part with an attachment part to be attached,
marked by a plate (12) and an annular part (14) which is connected to the plate, the opening (16) delimited by the annular part having a has such an extent that at one side of the corrugated cardboard part (8) adjacent plate and inserted through a hole (36) in the corrugated cardboard part Ring part the opening for inserting the attachment part (10; 4, 40) is sufficient. 20th 2. Connecting element according to claim 1, characterized in that that the distance between the edge of the opening (16) of the ring part (14) and the side of the plate (12) facing the edge is equal to the thickness of the corrugated cardboard part (8) plus the greatest thickness of the 25 is the attachment part (10, 4, tO). 3. Connecting element according to claim 1 or 2, characterized in that that the ring part (14) and the plate (12) by means of a snap connection are connected to each other. VI / 19 -2- DE 2326 4. Connecting element according to claim 1 or 2, characterized in that the ring part (14) and the plate (12) are integral with one another are trained.
5 5. Connecting element according to one of claims 1 to 4, characterized in that that it is made of a plastic. 6. Connecting element according to one of claims 1 to 5, characterized in that the plate (12) is substantially flat and that the plate is in its plane in all directions. "the outline of the projection of the Ring part (14) protrudes into the plane. 15th 7. Connecting element according to one of claims 1 to 6, characterized in that that the plate (12) has a rectangular shape. 8. Connecting element according to claim 7, characterized in that the plate (12) with at least one extending in its longitudinal direction Stiffening rib (32) is provided. 9. Connecting element according to one of claims 1 to 8, characterized in that that the ring part (14) has two legs (20) connected at their first ends to the plate (12) and one the second ends of the Has transverse web (18) connecting legs and that each leg a protrusion (22), the two protrusions facing in opposite directions and with between each Leg and the facing side of the plate a recess (24) is formed. 10. Connecting element according to claim 9, -3- DE 2326 characterized in that the outside of each of the two legs (20) is separated from the junction gradually rises with the transverse web (18) up to the projection (22) and is smooth. 11. Connecting element according to claim 9 or 10, characterized in that it is marked, that the plate (12) facing flank of each of the two projections (22) with at least one tooth (26) and / or a groove (28) is provided. 12. Connecting element according to claim 1, characterized in that the teeth (26) and / or grooves (2P) extend in a straight line Extend over the entire width of the legs (20). 13. Connecting element according to one of claims 9 to 12, characterized in that the transverse web (18) has the shape of an essentially flat rectangle Has. 14. Connecting element according to one of claims 9 to 13, characterized in that that on the inside of the transverse web (18) two spacers (34) are formed. 15. Connecting element according to claim 13 or 14, characterized in that it is marked, that the transverse web (18) with a extending in its longitudinal direction Stiffening rib is provided. 16. Connecting element according to one of claims 9 to 15, characterized in that that the plate (12) at the connection points with the legs (20) extending stiffening ribs in the plane of the respective leg (30).