DE102015111163A1 - Fastening element for packaging cartons - Google Patents

Abstract

The invention relates to a screwing system (110) for packaging cartons (100) comprising a threaded screw and a nut, the threaded screw having asymmetrical thread flanks in the axial direction and the nut being elastic so that it can be slid over the thread flanks without rotation. Furthermore, the invention relates to packaging boxes (100) for parts of goods, which contain at least one fastening element (110, 220), are attached to the goods parts and / or an auxiliary element such as a Aufstellstrebe (103) or can be attached.

Description

The invention relates to a screw system with a threaded screw and a nut, which serves as a fastener for packaging cartons. Furthermore, it relates to a packaging board and a method for transporting parts of goods.

In order to be able to transport goods parts such as injection molding products for automobiles undamaged from the place of manufacture to the place of assembly, it is known to accommodate these in specially produced foam molds within a carton.

Against this background, it was the object of the present invention to provide means for a simple, secure transport of goods parts.

This object is achieved by a screwing system according to claim 1, by a packaging board according to claim 4, and by a method according to claim 10. Advantageous embodiments are contained in the subclaims.

• – die Gewindeschraube in axialer Richtung gesehen asymmetrische Gewindeflanken aufweist, und
• – die zugehörige Mutter elastisch nachgiebig ist, sodass sie in Befestigungsrichtung ohne Drehung über die Gewindeflanken geschoben werden kann (d.h. die Gewindeflanken überspringen kann).

According to a first aspect, the invention relates to a screw system with a threaded screw (or "screw" for short) and an associated nut, which can be used in packaging cartons and which are characterized in that

• - Has seen the threaded screw in the axial direction asymmetric thread flanks, and
• - The associated nut is resilient so that it can be pushed in the mounting direction without rotation over the thread flanks (ie can skip the thread flanks).

The thread typically screws a pin-shaped shaft with an external thread, as well as a widened with respect to the shaft screw head, which may optionally have a slot or the like for the approach of a tool. In a sectional view along the axis of the screw, the thread flanks show up as elevations, these elevations according to the invention in a first direction (eg, the "mounting direction", which is to show by definition from the top of the shaft to the screw head) run differently (for example, with a different pitch angle ) are supposed to be asymmetric in the opposite direction, ie in this sense. The thread form corresponds or at least resembles the so-called "saw thread", for example according to the type of DIN 513 ,

In particular, the thread flanks seen in the mounting direction can be flatter (less steep) than in the opposite direction. Due to the elasticity of the nut, it can slide with its mating thread axially along the inclined flanks and expand radially until it has overcome the tips of the thread flanks and comes to lie in the adjacent thread notch. When applying a sufficiently large pressure in the fastening direction thus the nut can be quickly pushed to a certain axial position of the threaded screw without a tedious turning is required. The threaded screw with the nut is therefore ideally suited for fast fixing of parts in a packaging box.

The threaded screw and / or the nut are preferably made of a plastic such as polyethylene (PE).

The thread flanks preferably extend in the fastening direction at an angle of less than about 70 °, less than 60 °, less than 50 °, less than 40 °, less than 30 °, or less than 20 ° relative to the axis of the screw, in particular at an angle between about 10 ° and about 20 °. In contrast, the thread flanks seen in the opposite direction can be much steeper, such as at an angle of about 70 °, for example, of about 90 °.

According to another embodiment, the thread of the nut and / or the threaded screw extends circumferentially only over a subsector, i. H. not over full 360 °. The thread-carrying subsections of adjacent Windungsumläufe can be arranged aligned in the axial direction, so that seen in the axial direction thread-free and thread-bearing strips arise. The unthreaded strips may in particular be provided on the nut to facilitate this skipping thread flanks of the threaded screw.

• – Eine Box mit einem Grundkörper und einem zugehörigen Deckel.
• – Mindestens ein Befestigungselement, welches an einer Wand der Box angebracht ist und an dem ein Warenteil oder ein Hilfselement befestigt ist oder befestigt werden kann.

According to a second aspect, the invention relates to a packaging carton for goods parts, which contains the following components:

• - A box with a basic body and an associated lid.
• - At least one fastener which is attached to a wall of the box and to which a goods item or an auxiliary element is attached or can be attached.

The main body, the lid and / or the auxiliary element may in particular consist of cardboard, for example of a single or multi-ply corrugated cardboard.

By attaching a product part to a wall of the box whose solid, secure storage can be achieved without the need for elaborate moldings would be made.

By attaching an auxiliary element to a wall of the box, advantageous embodiments of the packaging carton can be produced. In particular, the auxiliary element may be an erection strut which, in the opened state of the box, supports the cover with respect to the main body.

In a further embodiment of the packaging carton, at least two fastening elements are provided, which fix a goods part under tension on the wall, for example by compressing it. As a result, a particularly secure storage is possible.

The fastening element may in particular contain a screw system with a threaded screw and a nut of the type described above.

With such a screw system, in particular, the cover can be rotatably mounted on the base body, and / or it can be rotatably attached to the cover or the base body, the auxiliary element.

In a further embodiment of the inventions, the fastening element has a hook to which a goods part can be attached. Such a hook may for example be bent from a wire.

The fastening element, for example the mentioned hook or the threaded screw with the nut, preferably penetrates the corresponding wall of the box, so that a part of the fastening element comes to lie on the outside of the wall (for example a head of the nut or threaded screw or a widening of the hook) and thus fixes the fastening element in a form-fitting manner.

Preferably, a plurality of fastening elements are attached to the lid of the box in order to hang several parts of goods can.

According to a further aspect, the invention relates to a method for transporting goods parts, which is characterized in that at least one of the goods parts is fixed to a wall of a packaging carton by means of a fastening element.

The method can be carried out in particular by means of a screwing system or a packaging box of the type described above. The embodiments explained in connection therewith can therefore also be used analogously as an extension of the method.

In the following the invention will be explained in more detail by way of example with the aid of the figures. Showing:

1 a perspective transparent view of a first packaging box in which parts of goods can be hung in the closed state;

2 the first packaging carton in the opened state with lid set up;

3 an interior view of the joint of a rotatable Aufstellstrebe the first packaging box;

4 an outside view of the aforementioned Aufstellstrebe;

5 an enlarged view of the outside of the lid, on which the head piece of a hook can be seen;

6 an enlarged view of the inside of the lid, on which the hook end can be seen;

7 a perspective view (bottom), a side view (top left) and a top view (top right) of the hook for suspending parts of goods in the first packaging box;

8th a perspective view of a screw with a threaded screw immediately after mounting the associated nut;

9 a sectional view of the tightening system of 8th ;

10 a sectional view of the screw system after Vorschiebenden the mother in the mounting direction to the screw head;

11 an enlarged view of the detail XI of 9 ;

12 two perspective views of the bottom (left) and the top (right) of the mother;

13 a cut by the mother;

14 a view on the top (left) and the bottom (right) of the mother;

15 a perspective view from below (left) and top (right) of the threaded screw;

16 a section through the threaded screw;

17 a view on the top (left) and the bottom (right) of the threaded screw;

18 a perspective view of a second packaging carton, in which a goods part can be fixed under bias, before (above) and after (below) inserting a carrier blank;

19 three successive phases of the attachment of the goods item in the second packaging box by means of a threaded screw;

20 the second packaging box with a goods part fixed therein.

In the 1 - 6 is a first packaging box 100 illustrated according to a first embodiment of the invention. The packaging box 100 contains a box with a basic body 101 and a hinged lid attached thereto 102 ,

Furthermore, as auxiliary elements two Aufstellstreben 103 present, which in the opened state of the box ( 2 ) are supported on the main body and thus the lid for loading the packaging box 100 keep open.

As in the 3 and 4 is recognizable, are the Aufstellstreben 103 rotatable with the help of a screw system (see below) from a threaded screw 111 and an associated mother 115 on a peripheral edge of the lid 102 appropriate.

On the inside of the lid 102 are hooked in a grid 120 attached to the goods parts (not shown) can be attached to this for a nondestructive transport in the packaging box 100 to store.

7 shows such a hook 120 separately. The hook 120 has a middle part 122 on, at one end at right angles kinking a loop-shaped head piece 123 connects and at the other end bent at right angles twice (essentially L-shaped) a hook part 121 is formed. The hook 120 can be made in a simple manner as a bent part made of metal wire. For fastening the hook to the lid 102 it is sufficient to lead this through (eg point or circular) holes in the lid, the head piece 123 to lie on the outer surface of the lid ( 5 ) and where the hook part 121 with the middle part 122 protrude substantially perpendicularly from the inside of the lid ( 6 ). If a particularly secure fit of the hook is desired, the head piece 123 still be fixed with an adhesive (eg hot glue) on the lid.

In the 8th - 11 is separately the screw system according to the invention 110 shown, which is a threaded screw 111 and an associated mother 115 includes. As from the detail view of 11 can be seen, are the thread flanks 112a as seen in the attachment direction z (ie, the direction taken from the top of the threaded bolt 111 to their head 113 has) formed asymmetrically. In particular, the thread flanks extend 112a seen in the attachment direction z shallower than in the opposite direction. In other words, the angle α, the visible from the mounting direction sides of the thread flanks 112a form with the screw axis, smaller than the angle β, the opposite (not visible from the mounting direction sides of the thread flanks 112a ) with the screw axis.

Typically, the aforementioned angle α is in a range of about 70 ° to about 10 °, preferably between about 30 ° and about 10 °, more preferably in an interval of about ± 5 ° to the value α = 16 ° around. In contrast, the aforementioned angle β is typically in a range of about 70 ° to about 90 °.

Due to the very flat inclined in the mounting direction thread flanks and due to a radial elasticity of the nut 115 the mother can slide with the application of a sufficiently high force in the mounting direction z under temporary radial extension over the thread flanks or jump and are brought in this way very quickly in the axial direction to a specific position. For example, the transition between the in 9 shown position to that of 10 very quickly by applying a pressure on the mother 115 reachable in attachment direction z.

A removal of the mother 115 in the opposite direction is also possible, but requires the rotation of the nut in a conventional screwing.

The 12 - 14 show the mother 115 in different views separately. In the illustrated embodiment, it includes a sleeve 116 with an internal thread 119 , on which a disc-shaped widened head 117 is formed. The head 117 can outside upstanding webs 118 to facilitate turning the nut by hand. Furthermore, it can be seen that the internal thread 119 mother 115 extends only over a sub-sector (typically between 20 ° and 60 °) and not over a full 360 °. The threaded pieces lie in the direction of the screw axis aligned in a row. Due to the free sectors between the threaded pieces is a postponement of the mother 115 over the thread of the screw 111 facilitated.

The figures in 15 - 17 show the threaded screw 111 separate in different views. It consists of a shaft 112 with an external thread and an attached widened head 113 which may have a slot or the like for attaching a tool. The thread of the threaded bolt 111 is complementary to that of the mother 115 shaped.

In the 18 - 20 is a second packaging box 200 represented according to another embodiment of the invention. The second packaging box 200 contains a box with a basic body 201 and a hinged lid attached thereto 202 and a carrier blank 203 , which fits in the body 201 can be used. The carrier blank 203 contains recesses 204 through which the shaft 112 a threaded screw 111 can grasp the outside through the bottom of the main body 201 is guided. As in 19 can be exemplified, can on the shaft 112 a product W to pass through its positions in the packaging carton 200 to fix.

20 shows the packaging box 200 after such a fitting with a goods part W such as the frame part of the windshield of a motor vehicle. By attachment with two screw systems 110 at two outer points the product is held securely. Preferably, it is under a slight tension (compression) in order to obtain an even better fit.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited non-patent literature

• DIN 513 [0006]

Claims (10)

Screwing system ( 110 ) for packaging cartons containing a threaded screw ( 111 ) and a mother ( 115 ), wherein the threaded screw ( 111 ) in the axial direction asymmetric thread flanks ( 112a ) and wherein the nut ( 115 ) is elastic, so that they rotate over the thread flanks ( 112a ) can be pushed. Screwing system ( 110 ) according to at least one of the preceding claims, characterized in that the thread flanks ( 112a ) in the fastening direction (z) at an angle of less than about 70 °, preferably less than about 40 °. Screwing system ( 110 ) according to at least one of the preceding claims, characterized in that the thread ( 119 ) mother ( 115 ) and / or the threaded screw ( 111 ) extends circumferentially only over a subsector. Packaging box ( 100 . 200 ) for parts of goods (W), comprising: - a box with a basic body ( 101 . 201 ) and an associated lid ( 102 . 202 ), - at least one fastening element ( 110 . 220 ) which is attached to a wall of the box and to which a goods item (W) and / or an auxiliary element ( 103 ) is attached or can be attached. Packaging box ( 100 . 200 ) according to at least one of the preceding claims, characterized in that the fastening element is a screw system ( 110 ) according to at least one of claims 1 to 3. Packaging box ( 100 . 200 ) according to claim 5, characterized in that - the lid ( 102 ) on the base body ( 101 ) and / or - the auxiliary element ( 103 ) on the lid ( 102 ) or on the main body ( 101 ) via the screw system ( 110 ) is mounted rotatably. Packaging box ( 100 ) according to at least one of the preceding claims, characterized in that the auxiliary element a Aufstellstrebe ( 103 ), which in the open state of the box the lid ( 102 ) relative to the main body ( 101 ) is supported. Packaging box ( 200 ) according to at least one of the preceding claims, characterized in that at least two fastening elements ( 110 ) are provided, which fix a product (W) under tension on the wall. Packaging box ( 100 ) according to at least one of the preceding claims, characterized in that the fastening element has a hook ( 120 ) to which a part of goods can be attached. Method for transporting parts of goods (W), characterized in that at least one of the goods parts (W) on the wall of a packaging box (W) 100 . 200 ) by means of a fastening element ( 110 . 120 ) is attached.

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