GB1589366A - Cartons - Google Patents

Description

(54) IMPROVEMENTS IN OR RELATING TO CARTONS (71) We, R. R. BROWNE & Co.

LIMITED of Newforth Factory, Bains Place, Belfast BT2 7GU, Northern Ireland, a Northern Ireland Company do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement: This invention relates to folding cartons made of cardboard or similar material, such cartons being manufactured and stored in a flat condition and erected when required for use.

The present invention is a carton comprising an open-topped rectangular box and a tray-providing member fitted therewithin, the box having a flat bottom and inner and outer side walls, opposite inner walls of the box being divergent upwardly from inward of the bottom periphery over part of their height and being thereafter normal to the bottom, and opposite outer walls of the box being initially convergent upwardly from the bottom periphery to approach the inner walls closely at the transition of the latter from their said divergent to their said normal parts and being thereafter also normal to the bottom and abutting the inner walls, and the tray-providing member comprising a platform shaped and sized to fill.an area bounded by the normally-extending parts of said inner w.alls and having at its underside at least one integral support resting on said flat bottom and supporting said platform at the level of the transition from the divergent to the normal parts of said inner walls.

Preferably, the platform has at its underside two supports at opposite edges thereof and deflected towards one another by said divergent parts of the respective inner walls.

An embodiment of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which: Fig. 1 illustrates a blank for an opentopped rectangular box used in the make-up of a carton according to the present inven tion; Fig. 2 illustrates the blank of Fig. 1 in the folded and glued flat state, in which it can be stored; Fig. 3 illustrates a blank for a trayproviding member Fig. 4 is a perspective view of the trayproviding member formed from the blank of tig. 3 by folding and glueing; Fig. 5 is a transverse cross-section of the open-topped rectangular box formed from the blank of Figs. 1 and 2; and Fig. 6 is a perspective view of a carton formed from the tray-providing and box blanks.

Referring to the drawings, and firstly to Fig. 1, the blank for an open-topped rectangular box has a bottom panel 1 having integral therewith opposite end panels 6 and opposite side panels 2, and each end panel 6 has integral therewith tuck-in panels 7 and 8. The width of the end panels 6 is defined by crease or other weakening lines 1A and 6A, and the width of the panel 7 is defined by crease or other weakening lines 6A and 7A. Between the bottom panel 1, and the side panels 2 are crease lines 2A, and the side panels 2 have fold-in end flaps 9 divided therefrom by crease lines 9A. Each side panel 2 has integral therewith panels 3 defined therefrom by crease lines 3A, the panels 3 having end flaps 10 divided therefrom by crease lines 3B and separated from end flaps 9 along lines of cut 10A and 10B.

Panels 4 integral with panels 3 and distinguished therefrom by crease lines 4A are provided on the outboard side of the panels 3. Strip portions 4B, have glue applied thereto as shown by stippling are provided on the panels 4 adjacent to the panels 3. The panels 4, on the side of the strip portions 4B remote from the panels 3, have fold-in end flaps 11 divided from the panels 4 by crease lines 1 1A and lines of cut 12. The panels 4 have integral therewith tuck-in panels 5 divided therefrom by crease and score lines 5A.

The blank, shown in Fig. 1, is shown in Fig. 2 in its glued and folded flat state with glue having been applied to strip portions 4B and the panels 4 and 5 having been folded as a unit inwardly along the crease lines 4A so that the strip portions 4B become adhered to the panels 3. In the glued and folded flat state, the blanks to form open-topped rectangular boxes can be packed, stored and transported.

Referring to Fig. 3, a blank for a trayproviding member for use with an opentopped rectangular box formed from the blank of Figs. 1 and 2, comprises a rectangular panel 3 having at each end fold-over flaps 18, 19 and 20 distinguished by crease lines 18A, 19A and 20A. The crease lines 18A and 20A are provided with slots and ears, 22 and 21 respectively. Along each side of the panel 13, side panels 14, 5 and 16 with glue flaps 17 are provided, the panels being defined by crease lines 14A, 15A, 16A and 17A. The tray-providing member, formed from the blank of Fig. 3 by gluein and folding, is shown in Fig. 4 ready to be fitted within the open-topped rectangular box formed from the blank of Figs. 1 and 2.In making up the tray-providing member from the Fig. 3 blank, glue is applied to glue flaps 17, and, the side panels 14, 15, 16 and 17 and folded along the crease lines 14A, 15A, 16A and 17A inwardly of the panel 13 so that the glue flaps 17 are adhered to the underside of the panel 13 as shown. The tray-providing member folds flat with the panels 14, 15 and 16 flat against flaps 17 and panel 13.

To form the open-topped rectangular box from the blank shown in Fig. 2, the panels 2 are folded over towards the upper side of the bottom panel 1 and the panels 5 are tucked in about the crease and score lines 5A to lie flat on the bottom panel 1 with their free longer edges butting into the angular corners between the panels 2 and the bottom panel 1, whereby the parts of the panels 4 between the bottom panel 1 and the strip portions 4B slightly diverge from inward of the periphery of the bottom 1, and the portions 4B with the panels 3 adhered thereto are normal to the bottom panel 1.

The panels 2 converge from the periphery of the bottom panel 1. Flaps 11 are folded in towards the inside of the partially erected blank and flaps 9 are folded over from an edge of each thereof to lie along the crease lines 1A. Panels 6 are next folded over inwardly along crease lines lA and overlie the flaps 9. Panels 8 are then tucked in so that their free edges abut crease lines 1 A with the panels 7 upright relative to the bottom panel 1 and against the flaps 11. Since panels 8 are slightly less in width than panels 5, represented on the bottom panel 1 in Fig.

1 as Ib and 1c respectively, the panels 7 when upright sit in behind the cut edges 12 of the panels 4 due to the initial slight divergence of the panels 4 aforementioned, and thereby prevent the panels 6, 7 and 8 from opening up again.

The tray-providing member shown in Fig.

4 is fitted into the open-topped rectangular box shown in Fig. 5, with the panel 13 on a level with the crease lines 3A and 6A, between the panels 2 and 3 and the panels 6 and 7, respectively. Flaps 10 of the box are folded inwardly to be trapped in position when panels 18 are folded inwardly, with panels 19 folded over upon panels 18 and ears 21 engaging in the slots 22 with the panels 20 overlying the panel 13.

The completed carton is shown in Fig. 6 with the tray for accommodating articles spaced above the bottom of the box and hollow spaces defined between the panel 13, the bottom 1, the panels 2 and , and the panels 14 and 16.

The above-described carton is advantageous in that it provides an open-topped rectangular box which can be formed easily from a glued and folded blank which can be stored in a flat condition to save space and for transportation.

WHAT WE CLAIM IS: 1. A carton comprising an open-topped rectangular box and a tray-providing member fitted therewithin, the box having a flat bottom and inner and outer side walls, opposite inner walls of the box being divergent upwardly from inward of the bottom periphery over part of their height and being thereafter normal to the bottom, and opposite outer walls of the box being initially convergent upwardly from the bottom periphery to approach the inner walls closely at the transition of the latter from their said divergent to their said normal parts and being thereafter also normal to the bottom and abutting the inner walls, and the tray-providing member comprising a platform shaped and sized to fill an area bounded by the normally-extending parts of said inner walls and having at its underside at least one integral support resting on said flat bottom and supporting said platform at the level of the transition from the divergent to the normal parts of said inner walls.

2. A carton as claimed in Claim 1, wherein the platform has at its underside two supports at opposite edges thereof and deflected towards one another by said divergent parts of the respective inner walls.

3. A carton made up of an open-topped rectangular box formed from the blank substantially as hereinbefore described with reference to and as illustrated in Figs. 1 and 2 of the accompanying drawings and the tray-providing member formed from the blank substantially as hereinbefore described with reference to and as illustrated in Fig. 3 of the accompanying drawings.

**WARNING** end of DESC field may overlap start of CLMS **.

Claims (3)

**WARNING** start of CLMS field may overlap end of DESC **. lines 4A so that the strip portions 4B become adhered to the panels 3. In the glued and folded flat state, the blanks to form open-topped rectangular boxes can be packed, stored and transported. Referring to Fig. 3, a blank for a trayproviding member for use with an opentopped rectangular box formed from the blank of Figs. 1 and 2, comprises a rectangular panel 3 having at each end fold-over flaps 18, 19 and 20 distinguished by crease lines 18A, 19A and 20A. The crease lines 18A and 20A are provided with slots and ears, 22 and 21 respectively. Along each side of the panel 13, side panels 14, 5 and 16 with glue flaps 17 are provided, the panels being defined by crease lines 14A, 15A, 16A and 17A. The tray-providing member, formed from the blank of Fig. 3 by gluein and folding, is shown in Fig. 4 ready to be fitted within the open-topped rectangular box formed from the blank of Figs. 1 and 2.In making up the tray-providing member from the Fig. 3 blank, glue is applied to glue flaps 17, and, the side panels 14, 15, 16 and 17 and folded along the crease lines 14A, 15A, 16A and 17A inwardly of the panel 13 so that the glue flaps 17 are adhered to the underside of the panel 13 as shown. The tray-providing member folds flat with the panels 14, 15 and 16 flat against flaps 17 and panel 13. To form the open-topped rectangular box from the blank shown in Fig. 2, the panels 2 are folded over towards the upper side of the bottom panel 1 and the panels 5 are tucked in about the crease and score lines 5A to lie flat on the bottom panel 1 with their free longer edges butting into the angular corners between the panels 2 and the bottom panel 1, whereby the parts of the panels 4 between the bottom panel 1 and the strip portions 4B slightly diverge from inward of the periphery of the bottom 1, and the portions 4B with the panels 3 adhered thereto are normal to the bottom panel 1. The panels 2 converge from the periphery of the bottom panel 1. Flaps 11 are folded in towards the inside of the partially erected blank and flaps 9 are folded over from an edge of each thereof to lie along the crease lines 1A. Panels 6 are next folded over inwardly along crease lines lA and overlie the flaps 9. Panels 8 are then tucked in so that their free edges abut crease lines 1 A with the panels 7 upright relative to the bottom panel 1 and against the flaps 11. Since panels 8 are slightly less in width than panels 5, represented on the bottom panel 1 in Fig.

1 as Ib and 1c respectively, the panels 7 when upright sit in behind the cut edges 12 of the panels 4 due to the initial slight divergence of the panels 4 aforementioned, and thereby prevent the panels 6, 7 and 8 from opening up again.

The tray-providing member shown in Fig.

4 is fitted into the open-topped rectangular box shown in Fig. 5, with the panel 13 on a level with the crease lines 3A and 6A, between the panels 2 and 3 and the panels 6 and 7, respectively. Flaps 10 of the box are folded inwardly to be trapped in position when panels 18 are folded inwardly, with panels 19 folded over upon panels 18 and ears 21 engaging in the slots 22 with the panels 20 overlying the panel 13.

The completed carton is shown in Fig. 6 with the tray for accommodating articles spaced above the bottom of the box and hollow spaces defined between the panel 13, the bottom 1, the panels 2 and , and the panels 14 and 16.

The above-described carton is advantageous in that it provides an open-topped rectangular box which can be formed easily from a glued and folded blank which can be stored in a flat condition to save space and for transportation.

WHAT WE CLAIM IS: 1. A carton comprising an open-topped rectangular box and a tray-providing member fitted therewithin, the box having a flat bottom and inner and outer side walls, opposite inner walls of the box being divergent upwardly from inward of the bottom periphery over part of their height and being thereafter normal to the bottom, and opposite outer walls of the box being initially convergent upwardly from the bottom periphery to approach the inner walls closely at the transition of the latter from their said divergent to their said normal parts and being thereafter also normal to the bottom and abutting the inner walls, and the tray-providing member comprising a platform shaped and sized to fill an area bounded by the normally-extending parts of said inner walls and having at its underside at least one integral support resting on said flat bottom and supporting said platform at the level of the transition from the divergent to the normal parts of said inner walls.

2. A carton as claimed in Claim 1, wherein the platform has at its underside two supports at opposite edges thereof and deflected towards one another by said divergent parts of the respective inner walls.

3. A carton made up of an open-topped rectangular box formed from the blank substantially as hereinbefore described with reference to and as illustrated in Figs. 1 and 2 of the accompanying drawings and the tray-providing member formed from the blank substantially as hereinbefore described with reference to and as illustrated in Fig. 3 of the accompanying drawings.