EP0076487B1 - Folding box - Google Patents

Description

The invention relates to a box for the storage and provision of objects, comprising an insert that can be produced from a blank, that can be folded after manufacture, that can be inserted into a sleeve and that has a front wall that can be opened and that has lateral flaps that are at least partially guided in the box.

In a known box of this type (US-A-2445034), the side walls of the insert have side flaps which are bent through 90 °. These side tabs have slots. The side flaps of the foldable front wall are inserted through the slots in the flaps of the side walls. As a result, they are guided within the slot. The slot is designed to hold relatively large objects. The side tabs on the front wall are rounded.

If relatively heavy and small objects are packed in the insert, it can be seen that the flap can be opened, but can only be closed again with difficulty. When the flap is pushed in, the side flaps have to slide past the objects, which leads to the destruction of the side flaps within a very short time. In addition, the front wall can be opened completely without difficulty, so that with horizontally arranged boxes there is a risk that objects, especially if they are heavy and small, will fall out.

In another known box (US-A-2 348 378), the top of the box opposite a foldable bottom is designed to be foldable. It has no side flaps, so that when the box is arranged in such a way that the foldable wall forms the front wall, objects fall out laterally when the box is opened. There is no limitation to the opening movement.

In a further known box (GB-A-979355), the front wall is designed to be foldable and there are lateral tabs which limit the foldout movement. The chessboard can no longer be folded when it is manufactured. The tabs are guided in the box. With this box, there is again the danger that, when used with small and heavy objects, it is difficult to close the foldable wall and lead to the destruction of the side flaps within a very short time.

The invention has for its object to provide an easy to manufacture, simple and inexpensive to send and load and also easy to fill box, in which, in particular when using small and relatively heavy objects, the foldable front wall can be opened and closed frequently to be able to remove the packaged items individually.

To achieve this object, the invention provides a box of the type mentioned, in which the tabs are guided between the side walls of the insert and those of the cover and are designed such that they limit the opening of the front wall. In boxes of this type, for example, screws, nuts, fasteners or the like are shipped and kept at the same time. The side tabs serve to prevent objects from falling out to the side. The objects cannot fall out towards the front because the tabs only allow a limited opening movement. This can be achieved, for example, by appropriately designing the upper edge of the side tabs. Because the side flaps are guided between the walls of the insert and the walls of the casing, they do not collide with the objects stored in the box, so that on the one hand only a small force is required to close the box again and on the other hand there is no wear on the side tabs.

The insert can be designed to be open in a trough-like manner, but it is also possible that it can be designed as a box which is completely closed per se.

To increase the service life, it can be provided according to the invention that the foldable front wall is reinforced on its lower edge and / or has a grip tab on its upper edge, with the aid of which the front wall can be opened more easily.

In order to be able to carry out a content check even when the box is closed, the envelope can have a window in its upper side. This window or the like, for example, through a plastic film. to be finished.

The front upper edge of the envelope can advantageously have a recess through which it is easier to grip the upper edge of the foldable front wall. The invention further proposes that the box may have a stop to limit the pull-out movement of the insert.

It is particularly favorable if the wall of the box opposite the front wall can preferably be folded inwards. This makes it possible to fold the already finished and glued box with the box open. so that it can be stored and transported when folded. When the box is filled, it only needs to be formed into a box by folding back one wall, after which the filling can then take place through the opening opened by the flap. If the foldable wall can be folded inwards, this has the advantage that the box only has to be set up briefly before filling, the foldable wall does not have to be made completely level, since the weight of the filled objects pushes the foldable wall by itself.

A development of the invention further provides that the foldable wall is formed from a number corresponding to the number of adjacent walls, preferably integrally connected to them, at least partially overlapping tabs, each tab being connected to at least one tab of an adjacent wall, and preferably only one of two tabs connected to one another, preferably the outer one, has a fold or crease line which runs along the bisector between the associated walls. This leads to a long life of the box without the folding being hindered in any way. In addition, the tab can serve as a stop without a crease line. This advantage is further improved by the fact that the connection between two flaps only takes place on one side of the fold line and / or the innermost flap has the shape of the foldable wall.

• Figur 1 eine Aufsicht auf einen Zuschnitt zur Herstellung der Schachtel von der späteren Innenseite ;
• Figur 2 eine perspektivische Ansicht des Zuschnittes in einem ersten Herstellungsstadium ;
• Figur 3 eine perspektivische Ansicht nach Herstellung der Schachtel aus der gleichen Richtung wie in Fig. 2 ;
• Figur 4 eine Aufsicht auf den Zuschnitt nach Fig. 1 nach hergestellter Schachtel ;
• Figur 5 eine perspektivische Ansicht einer Schachtelhülle ;
• Figur 6 eine perspektivische Ansicht eines Einschubs von hinten ;
• Figur 7 einen Zuschnitt zur Herstellung eines Einschubes nach Fig. 6 ;
• Figur 8 einen Zuschnitt zur Herstellung einer Hülle ;
• Figur 9 eine Aufsicht auf einen gefalteten Einschub;
• Figur 10 eine abgebrochene Rückansicht einer erfindungsgemäßen Schachtel ;
• Figur 11 eine Seitenansicht eines Einschubes mit aufgeklappter Vorderwand ;
• Figur 12 einen Zuschnitt einer abgeänderten Ausführungsform und
• Figur 13 die Rückansicht eines Einschubes der Ausführungsform nach Fig. 7.

Further features, details and advantages of the invention result from the claims, the following description of preferred embodiments of the invention and with reference to the drawing. Here show:

• Figure 1 is a plan view of a blank for the manufacture of the box from the later inside;
• Figure 2 is a perspective view of the blank in a first manufacturing stage;
• Figure 3 is a perspective view after the box is made from the same direction as in Fig. 2;
• Figure 4 is a plan view of the blank of Figure 1 after the box is made.
• Figure 5 is a perspective view of a box cover;
• FIG. 6 shows a perspective view of an insert from the rear;
• FIG. 7 shows a blank for producing an insert according to FIG. 6;
• FIG. 8 shows a blank for producing a casing;
• Figure 9 is a plan view of a folded drawer;
• FIG. 10 shows a broken rear view of a box according to the invention;
• FIG. 11 shows a side view of an insert with the front wall opened;
• Figure 12 shows a blank of a modified embodiment and
• FIG. 13 shows the rear view of an insert of the embodiment according to FIG. 7.

The blank shown in FIG. 1 for the production of the box consists of a central section 11, which consists of four sections 12 to 15 which later become the walls of the box. On the left side of section 13 in FIG. 1, a further section 16 is arranged, which later becomes a flap on the side of the box. The flap section 16 has two side tabs 17 and a narrow end tab 18.

In Fig. 1, the outline of the blank and cuts are shown with solid lines. The dashed lines indicate the lines which, when the box is not folded, represent 90 ° bends. Dashed lines are those lines which represent a 180 ° bend in the folded box. It can therefore be seen that only the flap section 16 is connected to the left side of the middle section 11, specifically to section 13. There is no connection between the side tabs 17 and sections 12 and 14, respectively.

On the right-hand side, each section 12 to 15 has a tab 19 to 22. The lower tab 19 in FIG. 1 has an outer edge 23 which extends approximately at an angle of 45 ° with respect to the fold line 24 between the tab 19 and the section 12 . The shape of the tab 19 is derived from an isosceles right-angled triangle, the right-hand tip being cut off and the upper side 24 being slightly beveled. This facilitates the manufacture of the box from the blank and also prevents damage to the tip.

The flap 20 arranged above the flap 19 has, roughly speaking, a shape that is mirror-symmetrical to the flap 19, the width of the flap 20, however, being somewhat larger than that of the flap 19. At an angle of 45 ° with respect to the fold line 25 between the section 13 and the Tab 20 runs the auxiliary folding line 26, which serves to enable the bottom of the box made from tabs 19 to 22 to be folded.

The flap 21, which is connected to the section 14 of the box blank, has a rectangular shape and a narrow auxiliary flap 27 on its right side. In the region of the folding line 28 between the flaps 21 and 27, a slot 29 running parallel to the folding line 28 is cut, which causes the area 30 of the tab 21 to remain in the plane of the tab 21 when the tab 27 is bent around the line 28. This area 13 forms a projection 31. In the area of the line 34, a similar slot 32 is arranged, which after the kinking forms an opening into which the projection 31 of the tab 21 can engage.

The section 15 of the blank includes a tab 22 arranged on the right in FIG. 1, which has approximately the same shape as the tab 20. It also has a crease line 33 running at 45 °, which serves to fold the wall of the box formed by the tabs 19 to 22.

The section 15 also has an opening 35 which forms a window which allows a view into the interior of the box produced. At the upper edge of section 15, a further tab 36 is attached, which is glued to the lower edge of section 12.

To produce the box from the blank according to FIG. 1, the tabs 19 are first up to 22 folded by 90 ° around their respective fold lines. Then sections 12 and 15 are folded around the dividing lines with sections 13 and 14, respectively. This creates a structure as shown in perspective in FIG. 2, the left front side in FIG. 2 corresponding to the right side in FIG. 1. It can be seen here that the tab 22 comes to lie outside the tab 21 and the tabs 19 outside the tab 20. Now the partially overlapping tab 19 is fastened with 20 and 21 with 22. This fastening can be, for example, gluing. The flap 20 is glued to the flap 19 only in the area in FIG. 2 on the left above the fold line 26. The area of the tab 20, which is therefore arranged below the line 26, is not connected to the tab 19.

The same applies to the tabs 22 and 21, the connection likewise only taking place below the fold line 33. It can be seen from this that when the flap 19 is folded inward about the fold line 26, only the flap 19 is folded, while the flap 20 remains flat. However, this also means that the tab 19 cannot be bent outwards.

The inner flap 21 can have an auxiliary folding line 37 shown in dashed lines in FIG. 2, which only appears during the folding or unfolding of the box.

From FIG. 2 the neck 31 on the tab 21 and the neck 38 on the tab 19 can also be seen.

The flap section 16 can be seen with the side tabs 17 through the opening 35 of the section 15 of the blank. It is still in the unfolded state in the plane of sections 14 and 13.

After the blank has assumed the shape shown in FIG. 2 and is glued in this state, the blank is now folded around the dividing line 39 between the sections 14 and 15, the tab 19 and 20 coming to lie outside the tab 21. The outside of the flap 36 of the section 15 is glued to the inside of the section 12, after which all the gluing processes for producing the box have been completed. If the side flaps 17 of the flap section 16 are each folded by 90 °, the shape of the blank shown in FIG. 3 is achieved. If the tab 21 is now moved inwards by pulling the auxiliary tab 27 and pressure is exerted on the right upper edge 40 and on the left front wall, the box collapses until it has the shape shown in FIG. 4. Here, the flap 16 with its side tabs 17 is in the same position as in FIG. 1, while the section 12 now lies on the section 13 and the section 15 lies on the section 14. The tab 22 can be seen through the opening 35, in which case the dashed line 33 in FIG. 1 represents an edge.

In this form, the box can be transported and stored, taking up very little space. If the box is now to be filled, it is transferred from the folded state according to FIG. 4 to the state according to FIG. 3, after which the side of the box which can be closed by the flap 16 comes up. Filled objects fall from the inside onto the flap 21, which in this way leads to the fact that it is now being straightened as a folding wall. The projection 31 engages in the opening formed by the slot 32. After filling the box, it is rotated so that the flap 16 lies on the front, the edge formed by the line 41 being at the bottom. The side flaps are then bent over and the flap 16 is folded up, the auxiliary flap 18 engaging in the interior of the box. In this state, the box can be inserted, for example, into an outer casing, as described in main application P 31 39 378.0. The side flaps 17 are guided between the side walls of the box and those of the casing, the shape of the upper edges 42 shown in FIG. 1 ensuring that the flap 16 can only perform a limited opening movement. 3, which is formed by the slot 32 and the subsequent folding of the tab 19, forms a stop on the back of the envelope.

The sleeve 111 shown in FIG. 5 has two side walls 112, 113, an upper side 114 with a window 115 arranged therein, and a double-sided lower wall, which consists of the inner wall 116 and the outer wall 117.

In Fig. 5, the left front side of the case 111 is to represent the back of the box, while the front is accordingly pointing to the right and back. The casing 111 has a recess 119 in the region of its front upper edge 118; which is intended to make it easier to grip the tab 122 attached to the front wall 20 of the insert 121 shown in FIG. 6. On the back, the sleeve 111 has an approximately rectangular incision 134 in the inner wall 116 of the underside.

The insert 121 shown in FIG. 6 has, in addition to the front wall 120 already mentioned, two side walls 123, a bottom which is not visible and a rear wall 124. Like the front wall 120, the rear wall 124 has a tab 125 which, when the insert is fully inserted into the sleeve 111 121 come to lie within the shell 111. In addition to the tab 122, the front wall 120 of the insert 121 also has two lateral tabs 126, only one of which can be seen in FIG. 6. The side walls 123 in turn each have an approximately rectangular tab 127 on the rear of the insert 121, which are shown in dashed lines in FIG. 6, since in the assembled state of the insert 121 they lie on the side of the rear wall 124 facing the interior of the insert. These tabs 127 are firmly connected to the rear wall 124, for example glued. Both Tabs 127 each have a projection 128 on their underside, the projections 128 being arranged in the region of the edges 129 of the tabs 127, which face each other.

7, the projections 128 each correspond to a recess 130 in the rear wall 124 of the insert 121, since the lower edges of the tabs 127 coincide with the side edges 131 of the rear wall 124 during cutting.

The two projections 128 of the side tabs 127 extend through a slot 132 in the rear lower edge 133 of the insert 121 and protrude slightly downwards.

When the insert 121 is inserted into the sleeve 111 shown in FIG. 5, the side tabs 126 of the front wall 120 come to lie between the side walls 123 of the insert and the side walls 112, 113 of the sleeve, between which they are held. The projections 128, the total width of which corresponds approximately to the width of the incision 134 in FIG. 5, come to rest in this incision. Moving the insert 121 to the right is limited in that the projections 128 come to rest on the front edge of the incision 134. This creates an easy-to-produce stop for the insert. The curved shape of the top edges 135 of the side flap 126 allows the front wall 120 to be tilted forward together with the flap 122 until the area 136 of the top edge 135 comes into contact with the inside of the top wall 114 of the casing and thereby further unfolds the front wall 120 prevented.

7 shows the blank from which insert 121 of FIG. 6 is made. The corresponding parts of the blank are provided with the reference symbols of FIG. 6. Dashed lines in FIG. 7 show those lines of the blank along which the blank is folded by 90 °. Solid lines represent the outline of the blank, the solid lines 137 and 138 between the side walls 123 and the tabs 126 or between the tabs 127 and the rear wall 124 mean that an incision is made at this point through the blank. The corresponding parts are therefore not attached to one another along these lines. From the right half of FIG. 7 it can clearly be seen that the projections 128 arranged there on the tabs 127 of the side walls 123 correspond to the recesses 130 in the rear wall 124. The slot 132, which is arranged on the rear lower edge 133 of the insert, can also be seen. It can also be seen that the side walls 123 lie laterally next to the bottom 139 of the insert.

The boxes from the blank according to FIG. 7 are now produced in such a way that the side walls 123 with the flaps 127 are bent upwards by 90 °, after which the side flaps 127 are also bent inwards by 90 °. The projections 128 come to lie in the slot 132 and reach through this. Subsequently, the rear wall 124 is bent upwards by 90 ° and glued to the side tabs 127, which lie in the same plane. This completes the manufacturing process for the insert. The fold lines 140 in the region of the front wall can optionally also be pre-folded. The slide-in module so far now represents a trough-like container that is only closed at the front. Nevertheless, this container can be folded back into a flat shape. This is done in that the insert is folded inward about the lines 141 shown in broken lines in FIG. 7. The shape shown in FIG. 9 then results, which represents a finished insert in the folded state. On the right in FIG. 9 it can be seen how the two protrusions 128 protrude somewhat downward as an extension of the rear wall. They are not kinked in this state, so that they are not exposed to any special loads during transport and storage. The insert shown in FIG. 9 now only needs to be erected by pulling on the tab 125, after which the front wall 120 is bent upwards and the two side tabs 126 are tilted backwards. Then the slot for filling with screws, for example, is ready.

FIG. 8 shows the blank for the sleeve 111 in FIG. 5. It can clearly be seen that the blank consists of five sections separated by fold lines 142, each section corresponding to one of the walls shown in FIG. 5 and shown in FIG. 8 is provided with the corresponding reference numerals. To produce the cover, the blank is folded by 90 ° at the fold lines 142, care being taken that the section 117 is fastened, preferably glued, to the outside of the section 116. The incision 134 then comes to lie on the inside of the sleeve 111 so that it can form a stop together with the projections 128 of the insert 121.

The mode of action of the engagement of the projections 128 in the incision 134 is shown again in detail in FIG. 10. The inner wall 116 provided with the cut 134 lies above the outer wall 117 of the casing 111, the insert 121 with its rear wall 124 again lying above the inner wall 116. The two projections 128 reach through the slot 132 and project over the underside of the insert 121 by approximately the thickness of the inner wall 116 or the entire blank of the sleeve 111. From Fig. 10 it can also be seen that between the side walls 123 of the insert 121 and the side walls 112, 113 of the sleeve 111 there is still enough space in which the side tabs of the front wall are located. The pivotability of the front wall 120 together with the side tabs 126 can be seen in FIG. 11, where it can clearly be seen that in this position the section 136 of the upper edges 135 of the side tabs 126 aligned with the top edge 143 of the side wall 123. Since the upper edge 143 is arranged directly below the underside of the upper wall 114 of the casing 111, it can be seen from this that the front wall 120 can no longer be pivoted counterclockwise in FIG. 11.

12 shows a likewise possible embodiment of a blank for an insert proposed by the invention. Here, lateral tabs 145 are attached to the rear wall 144, which are also bent inwards by 90 ° and then connected to the side walls 123. In the area of the rear lower edge 133, which corresponds to a fold line, this blank now has a cut 146 which, parallel to the lower edge 133, is offset somewhat in the direction of the bottom 138 of the blank and is approximately as wide as the cut 134 in the sleeve 111. When the rear wall 144 is folded over around the rear lower edge, the area of the rear wall 144 immediately to the outside of the cut 146 comes out and forms there a projection 147 which can be seen in FIG. 13. This projection 147 serves the same purpose as the projections 128 of the embodiment 5 to 11.

A similar cut is arranged on the left side in the area of the fold line 140 between the flap 122 and the front wall 120. The area 149 lying inside the semicircular cut 148 is pressed outwards and can then serve as a grip tab.

Claims (8)

1. Box for storing and making ready articles containing a slide-in part (121), which can be produced from a blank, can be folded after production and slid into a case (111), said part having a front wall (16,120) which can be swung open and having lateral tongues (17, 126) which are at least partly guided in the box, characterized in that the tongues (17, 126) are guided between the side walls (12, 14, 123) of slide-in part (121) and those (112, 113) of case (111) and are constructed in such a way that they limit the swinging out of the front wall (16, 120).

2. Box according to claim 1, characterized in that the wall facing front wall (16) is preferably inwardly foldable.

3. Box according to claim 2, characterized in that the foldable wall is formed from a number of least partly overlapping tongues (19 to 22) corresponding to the number of adjacent walls and to which they are connected preferably in one piece, each tongue (19 to 22) being connected to a maximum of one tongue (19 to 22) of an adjacent wall and preferably of two interconnected tongues (19 to 22) only one and preferably the outer tongue (20, 22) has a folding or bending line (26, 33), which runs along the angle bisector between the associated walls.

4. Box according to claim 3, characterized in that the connection between two tongues (19 to 22) takes place only on one side of the associated bending line (26, 33) and/or the innermost tongue (21) is shaped like the foldable wall.

5. Box according to one of the preceding claims, characterized in that the lower edge (41, 150) of the front wall (16, 120) is reinforced and/or has a gripping tongue (18, 149) on its upper edge.

6. Box according to one of the preceding claims, characterized in that its top surface (114) is provided with a window opening (35, 115), which optionally has a transparent material.

7. Box according to one of the preceding claims characterized in that the front upper edge (118) of case (111) has a recess (119).

8. Box according to one of the preceding claims characterized in that it has a stop member (38) for limiting the slide-in unit drawing out movement.

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