DE69728528T2 - REINFORCED MEASURING BOX - Google Patents

Abstract

A multi-tier carton for groups of articles is formed from upper and lower blanks (40, 10) of foldable sheet material in which the lower blank includes foldable flaps (F1 - F4) to enhance the stacking strength of the carton. The carton also includes upstanding locating tabs (T1' - T4') and complementary locating apertures (H1 - H8) provided in each carton by both blanks so that a pair of like cartons can be inter-engaged when stacked to improve stacking stability.

Description

Background of the invention

The The invention relates to a box for accommodating a plurality of objects, for example, yogurt cups arranged in groups can, which are provided in two or more layers.

Some Forms of yogurt cups or other similar containers are relatively flexible and vulnerable for a Deformation and breakage and have no significant stacking strength. Thus, you can Groups of such items, which are provided to be sold as a unit, relatively easy be broken or deformed. Boxes have been used to accommodate these relatively unprotected objects, to protect them.

Some The following patents describe boxes which, when they are stacked one upon the other, their contents becoming one protect to a certain degree.

U.S. Patent Nos. 4,084,740 (Lorenz) and 4,709,852 (Stoll) each describe a stackable carton having a two-piece construction. The inner cover 10 according to Lorenz has first tabs (see Figure 5) and first notches 75 on while the outer cover 12 ceiling openings 74 and second notches. The inner and the outer cover 100 and 10 according to Stoll (see Figure 7) are each with first and second tabs 172 and 84 provided that together produce anti-skid agents.

U.S. Patent No. 3,489,314 teaches placing the lid 31 on the container body 1 through the protruding sections 15 and the openings 33 facilitated.

U.S. Patent No. 3,744,700 describes a box having a pair of U-shaped covers which are assembled to form a fully enclosed box. The tab 62.2 one of the covers will be in the slot 74.1 the other cover to facilitate the placement of the one box relative to the other.

U.S. Patent No. 3,596,758 describes a box of separation structures 60 coming from a box side wall 40 are punched out and folded into the positions between the objects within the box.

U.S. Patent No. 4,747,487 describes an arrangement of the flaps 2 . 40 . 41 and 42 for generating an anti-swing corner of a box.

U.S. Patent No. 3,596,758 describes a box having a sidewall 36 and a ceiling and bottom wall 54 and 46 Foldable with the top and bottom edges of the sidewall 36 are connected. Article retaining flap 60 are from the sidewall 36 punched out and, as shown in Figure 4, folded inwardly to the position of vertical between the top and bottom walls 54 and 46 are arranged. Other retention flaps 60 are from the other side wall 40 punched out and folded into the inside of the box. U.S. Patent No. 1,911,215 describes a similar arrangement.

U.S. Patent No. 2,076,844 shows a box of article retaining flaps in Figures 10 and 12 37 and 38 coming from a ceiling wall 39 and 40 are formed and folded down to completely between the side walls 34 and 35 to extend.

U.S. Patent Nos. 2,711,819 and 3,394,860 each describe a box having a two-piece construction including an inner box component comprising a center wall and a pair of end walls. For example, U.S. Patent No. 2,711,819 shows the center wall 8th and 9 Article retaining flap 12 and 13 on, which are punched out of this and folded into position, in which this completely between the end walls 10 and 10 extend. In U.S. Patent No. 2,411,819 3 a box wall of double thickness with an inner wall surface, ie the middle wall 8th and 9 from which the flaps 12 and 13 punched out.

U.S. Patent No. 4,213,559 describes a box having a double thickness wall comprising an inner and an outer wall surface 86 and 24 includes. An article retention flap 16 is from the inner wall surface 86 educated. The opening in the inner wall surface 86 passing through the retaining flap 16 is defined by the outer wall surface 24 covered.

Summary of the invention

The present invention seeks to provide a carton having improved stacking strength and other reinforcements to provide protection in unprotected areas, such as at the corners of the unit. In some of its embodiments, the present invention seeks to provide a carton adapted to have improved stacking qualities such that a plurality of like such cartons engage each other can take to provide a more stable stack.

According to one The first aspect of the present invention comprises a box a lower blank and an upper blank. The lower cut includes a bottom wall surface and a pair of inner side panels. The upper blank includes a ceiling wall surface and a pair of outer side panels. Of the upper blank and the lower blank are assembled in such a way that the inner side wall surfaces and the outer side panels Couple from opposite sidewalls create a double-walled structure. The upper cut represents Furthermore a corner reinforcement for the packed items ready.

According to one Another aspect of the present invention, it is not necessary that the upper blank and the lower blank the double wall structure produce; however, each inner sidewall surface is at the top of it Edge with a first tab and at the lower edge with a first notch provided while each outer side wall surface respectively At its upper and lower edge with a second tab and a second notch is provided. The second tabs are punched out of the top wall surface and thus define ceiling openings in the ceiling wall surface. While erection of the box will be the first tabs in the ceiling openings of the upper blank to arrange the upper blank to facilitate the lower blank. I'm upright Condition are the first and the second tabs in one parallel, adjoining Contact, to produce anti-slipping agents, while the first and the second notches are in mutual fit to engage one training insertion point. If two or more similar Boxes are stacked on top of each other, then the anti-slipping agents each lower box into the engaging slot placed in the bottom of the upper adjacent box, so that the boxes are stacked in a stable condition.

According to one Another aspect of the invention, a box has a side wall surface and a pair of ceiling and floor panels foldable with the upper and lower opposite Edges of the side wall surface are connected. The side wall surface has an article retention flap on, which is punched out of this and connected to this foldable is. The retaining flap is folded inwards into the position where these completely between the ceiling and end panel extends to reinforce the box or box to provide improved structural stability. Such Retaining flap is especially useful to improve the stack strength the box.

The The present invention provides a box in which a Variety of objects is housed, with the box a pair of blanks includes, wherein one of the blanks a top wall panel as well a pair of side panels the box provides, whereas the other blank one Base panel and a pair of side panels the box provides, and wherein at least one of the blanks includes hinged flaps that extend into the interior The box extends and extends between the top panel and the bottom wall surfaces extend to thereby increase the stacking strength of the box. Both Blanks can be arrangement means on the ceiling wall surface and on the bottom wall surface lock in, whereby a similar pair of such boxes interlock when stacked on top of each other to increase stability a relative movement between the stacked boxes resisted becomes.

The Box can end wall surface structures at the opposite Include ends, the reinforced one Provide corners of the box. The end panel structures preferably become provided by one of the blanks.

A inventive embodiment is below by way of example with reference to the accompanying figures described.

1 schematically shows a series of steps which are carried out in forming a box according to the invention of two blanks of foldable sheet material.

2 shows a top view of one of the blanks for forming the box 1 ,

3 shows a plan view of the other blank for forming the box after 1 ,

In the 1 and 2 a stack of containers P is shown comprising two layers t ₁ , t ₂ , each layer comprising a group of articles formed in three rows of four articles each. In this particular case, the articles are soft-walled plastic cups with ceiling flanges through which the cups are connected at their upper ends.

A lower blank or lower wrapper 10 which is more detailed in 2 is shown from an elongated, relatively stiff (compared to the upper shell 40 ) but foldable material, such as corrugated board, out forms. The lower shell 10 includes in turn a first ceiling flap 12 , a first side wall surface 14 , a bottom wall surface 16 , a second side panel 18 and a second ceiling flap 20 along transverse fold lines 22 . 24 . 26 respectively. 28 one with the other are articulated.

The side wall surface 14 includes hinged flaps F ₁ and F ₂ attached to side panel strips 14a and 14b the side wall surface 14 along longitudinal fold lines 30 respectively. 32 are hinged. These flaps F ₁ and F ₂ are on the opposite sides of the middle wall surface strip 14c the side wall surface 14 arranged. Likewise, the side wall surface includes 18 hinged flaps F ₃ and F ₄ attached to side panel strips 18a and 18b the side wall surface 18 along longitudinal fold lines 34 respectively. 36 are hinged.

The fold line 24 is through openings H ₁ and H ₂ at the bottom end of the side wall surface strips 14a and 14b interrupted and also the fold line 26 through openings H ₃ and H ₄ at the bottom end of the sidewall surface strips 18a and 18b interrupted to facilitate the stable stacking as described below. For the same reason, the tabs T ₁ and T ₂ from the ceiling flap 12 along the fold line 22 punched and the tabs T ₃ and T ₄ are from the ceiling flap 20 along the fold line 28 punched out.

In use is the stack of objects, as in 1 shown on the bottom wall surface 16 and the flaps F ₁ -F ₄ are placed in the space between the terminal rows of articles in each layer and the next adjacent rows of articles. The flaps F ₁ -F ₄ extend over the entire height of the stack of articles and increase its vertical stacking strength. How best 1 at position C are the ceiling flaps 12 and 20 folded to lie over the upper portions of the adjacent articles in the upper tier t ₂ . As a result, the four tabs T ₁ -T _{4 project} upwardly adjacent to the corners of the stack. The lower shell 10 which is used in forming the box is then in the correct position.

To complete the box is an upper blank or wrapper 40 applied to the pile. The upper shell 40 is more detailed in 3 represented and is formed from a single blank of cardboard or a comparable foldable web material.

The upper shell 40 includes in turn a first bottom flap 42 , a first side wall surface 44 , a ceiling panel 46 , a second side panel 48 and a second bottom flap 50 that go along the fold lines 52 . 54 . 56 respectively. 58 one hinged to the other.

At each of the opposite ends of the side panel 44 are corner panels 60 and 60a provided over the fold lines 62 and 62a hinged to the side wall surface 44 are attached. The fold lines 62 and 62a converge in one direction from the fold line 54 to the fold line 52 , A side end panel 64 is along the fold line 66 hinged to the corner wall surface 60 attached and a Seitenendwandfläche 64a is along the fold line 66a hinged to the corner wall surface 60a appropriate. Both the fold line 66 as well as the fold line 66a extend parallel to the longitudinal axis of the shell, and thus form the corner wall surfaces when the upper shell 40 positioned on the stack, at the corners of the stack, diverging columns extending between the top and the bottom of the stack.

The other corner panels 68 and 68a are along the fold lines 70 respectively. 70a hinged to the opposite ends of the side wall surface 48 appropriate. The fold lines 70 . 70a converge in one direction from the fold line 56 to the fold line 58 , A side end panel 72 is along the fold line 74 hinged to the corner wall surface 68 attached and a Seitenendwandfläche 72a is along the fold line 74a hinged to the corner wall surface 68a appropriate. The fold lines 74 and 74a agree with the fold lines 66 and 66a at the opposite end of the blank.

A ceiling end wall 76 is along the fold line 78 at one of the opposite ends of the top panel 46 attached and a similar Deckenendwandfläche 76a is along the fold line 78a hinged to the other end of the top panel 46 appropriate. The ceiling wall surface 70 is by means of a gusset wall surface 80 hinged to the side end panel 64 attached, wherein the gusset wall surface 80 along the fold lines 82 and 84 each hinged to the ceiling and Seitenendwandflächen is attached. A similar arrangement is provided around the ceiling end panel 76 by means of the gusset wall surface 86 and the fold lines 88 and 90 hinged to the side end panel 72 to install. A similar structure is provided on the opposite side of the blank in which like parts are identified by like reference numerals with the addition of the letter "a".

The openings H ₅ and H ₆ interrupt the fold line 52 , And also the openings H ₇ and H ₈ interrupt the fold line 58 , If the case 40 is properly applied to the pile, then the Holes H ₅ and H ₆ in fitting with the openings H ₁ and H _{2 of} the lower shell 10 brought, and the openings H ₇ and H ₈ are brought into fitting with the openings H ₃ and H ₄ . Similarly, the tabs T ₅ and T ₆ , which act along the fold line 54 from the ceiling wall 46 are punched out, and the tabs T ₇ and T ₈ , along the fold line 56 from the ceiling wall 46 are punched out, with respective tabs T ₁ to T ₄ together, by the ceiling flaps 12 and 20 the lower shell 10 stand up.

The tab assembly has two functions. First, the proper placement of the upper shell 40 relieved on the stack, since the upwardly projecting tabs T ₁ -T _{4 of} the lower shell 10 engage the openings defined by tabs T ₅ -T ₈ , and thus the top panel 46 arranged at the top of the stack. Secondly, once the tabs T ₁ T ₅ , T ₂ T ₆ , T ₃ T ₇ and T ₄ T ₈ are so placed, they are in face-to-face relationship and thus there are four pairs of upstanding, projecting projections T ₁ 'to T ₄ ' provided as in position E in 1 is shown. These locating projections T ₁ 'to T ₄ are positioned to enter, respectively, the four pairs of openings H ₁ H ₅ , H ₂ H ₆ , H ₃ H _7, and H ₄ H ₈ that fit in the floor a similar box are present when a plurality of such boxes are stacked on each other and thereby produce a stable multiple box stack, in which a relative slippage between the stacked boxes is prevented.

When the top shell, as at position D in 1 shown, is applied to the stack of objects, then the side wall surfaces 44 and 48 in an overlapping relationship with the side panels 14 respectively. 18 the lower shell 10 brought so that on each side of the package, a double-layered wall is provided to increase the protection of the contents. To increase protection at the ends of the box, the side end panels are 64 . 64a and 72 . 72a folded over the ends of the box, thus the corner panels 60 . 60a and 68 . 68a into a position where they extend between the top and bottom of the stack. It causes the ceiling end wall panel 76 is folded down and by the insertion effect of Zwickelwandflächen 80 and 86 to the side end panels 64 and 72 attached (eg glued) is, and also the ceiling end wall surface 76a by the insertion effect of the gusset panels 80a and 86a to the side end panels 64a and 72a attached. Thus, the unprotected corners of the box are protected against external impact. These reinforced corner structures, passing through the wall surfaces 64 . 64a . 72 . 72a . 76 . 76a . 80 . 80a . 86 and 86a are formed improve the strength of the box, which leads to an improved stack strength and counteracts a "rocking" of the box during transport. In the completed embodiment, as in position E in 1 is shown, the bottom flaps 42 and 50 the upper shell 40 to the bottom wall surface 16 the lower shell 10 attached (eg glued), so that the openings H ₅ -H _{8 are} in fit with the openings H ₁ -H ₄ .

To facilitate carrying the carton, a handle S is provided which includes a strap 92 includes, mainly from the ceiling wall surface 46 the shell 40 is punched out and hand pillow flaps 94 respectively. 96 includes.

Claims (8)

Box containing a plurality of articles (P), the box containing a pair of blanks ( 10 . 40 ), one of the blanks ( 40 ) a ceiling wall surface ( 46 ) and a pair of side panels ( 44 . 48 ) the box, whereas the other blank ( 10 ) a bottom wall surface ( 16 ) and a pair of side panels ( 14 . 18 ) the box, characterized in that at least one of the blanks ( 10 . 40 ) includes hinged flaps (F ₁ , F ₂ , F ₃ , F ₄ ) extending into the interior of the box and extending between the top panel (FIG. 46 ) and the bottom wall surface ( 16 ), thereby increasing the stacking strength of the box. Box according to claim 1, wherein both blanks arrangement means (T ₁ -T ₈ ) on the top wall surface ( 46 ) and (H ₁ -H ₈ ) on the bottom wall surface ( 16 ), whereby a like pair of such cartons can interlock when stacked one on top of the other to increase stability by resisting relative movement between the stacked cartons. Box according to claim 1 or 2, wherein the side panels ( 14 . 18 . 44 . 48 ) of the two blanks ( 10 . 40 ) are arranged in overlapping relationship with the box at opposite ends thereof having end panel structures (FIGS. 64 . 64a . 72 . 72a . 76 . 76a . 80 . 80a . 86 . 86a ) which provide reinforced corners of the carton, the end panel structures being of a (FIG. 40 ) of the blanks are provided. Box according to one of claims 1 to 3, wherein the side panels ( 44 . 48 ) of a blank ( 40 ) with whom ( 14 . 18 ) of the other blank ( 10 ) overlap, providing two-ply walls. Box according to one of the preceding claims, wherein the other blank is formed from a material that is in the Compared to the one blank is relatively stiff. Box according to one of the preceding claims, wherein things housed in groups that form a variety of layers. Packaging comprising a box according to one of claims 1 to 6 and a variety of items. A first cut and a second cut to the Forming a box according to one of claims 1 to 6.