US3851809A

US3851809A - Sheet material dispenser and blank for assembling the same

Info

Publication number: US3851809A
Application number: US00312905A
Authority: US
Inventors: J Mckibbin
Original assignee: National Steel Corp
Current assignee: National Aluminum Corp
Priority date: 1972-12-07
Filing date: 1972-12-07
Publication date: 1974-12-03
Anticipated expiration: 1991-12-03

Abstract

Dispensing carton for a supply roll of sheet material, e.g. a foil dispenser, has closure structure including a top wall containing an elongated slot. It has a front wall with a hinged bottom edge and a free top edge associated with a cutting blade. The front wall is adapted to be moved from a position perpendicular to the bottom wall to a position in obtuse angle relationship to the bottom wall. The closure structure includes downwardly depending means which function to shield the cutting edge when the front wall is in perpendicular position and to lock the front wall in place when it is in angled position. When the carton is in use, the sheet material is threaded through the elongated slot and the front wall is locked in angled position.

Description

McKibbin Dec.v 3, 1974 SHEET MATERIAL DISPENSER AND BLANK FOR ASSEMBLING THE SAME John M. McKibbin, Bridgewater, Conn.

Inventor:

Assignee: National Steel Corporation,

Pittsburgh, Pa.

Filed: Dec. 7, 1972 Appl. No.: 312,905

US. Cl 225/20, 225/48, 225/89 Int. Cl B26f 3/02 Field of Search 225/19, 20, 47, 48, 53,

References Cited UNITED STATES PATENTS 5/1938 Spilski 225/89 X 11/1969 Branjon 225/48 X Primary ExaminerAndrew R. Juhasz Assistant Examiner-Leon Gilden Attorney, Agent, or Firm-Shanley, O'Neil and Baker [57] ABSTRACT Dispensing carton for a supply roll of sheet material, e.g. a foil dispenser, has closure structure including a top wall containing an elongated slot. It has a front wall with a hinged bottom edge and a free top edge associated with a cutting blade. The front wall is adapted to be moved from a position perpendicular to the bottom wall to a position in obtuse angle relationship to the bottom wall. The closure structure includes downwardly depending means which function to shield the cutting edge when the front wall is in perpendicular position and to lock the front wall in place when it is in angled position. When the carton is in use, the sheet material is threaded through the elongated slot and the front wall is locked in angled position.

6 Claims, 5 Drawing Figures PATENTEL BEE 3 sum ear 2 SHEET MATERIAL DISPENSER AND BLANK FOR ASSEMBLING THE SAME BACKGROUND OF THE INVENTION This invention relates to a dispensing carton for a supply roll of sheet material, e.g., an aluminum foil dispenser. It also relates to a blank for assembling such carton. It further relates to the combination of a supply roll of sheet material and a dispensing carton.

It is known to design such cartons with a sheet material outlet spaced from a cutter so that the leading edge of the material remains exposed after a piece of such material has been torn off thereby permitting the user to readily grasp the leading edge of the material without having to reach into the box. This concept is disclosed for example in the following US. Pat. Nos. 2,836,292; 2,889,098; 2,936,937; 3,082,870; 3,092,294; 3,137,424; 3,228,519; 3,285,483; 3,477,624; and 3,565,307.

Except for US. Pat. Nos. 2,936,937 and 3,565,307, the above listed patents disclose cartons such that sheet material is drawn parallel to and adjacent a surface having a cutter extending from its edge. Such cartons are disadvantageous from the standpoint of tearing ease compared to cartons such that sheet material is drawn in angled relationship to a cutter. US. Pat. Nos. 2,936,937 and 3,565,307 disclose cartons of this lastmentioned type.

It is desirable to shield the cutting edge, for example during shipment and handling. This is a problem especially with cartons with angled cutters. US. Pat. No. 3,565,370 recognizes this problem and discloses providing shielding of the cutting edge by drawing sheet material over it and tucking the same behind the wall carrying the cutter. This is not a very satisfactory solution especially in relation to shipping and handling.

It is an object of this invention to provide a novel dispensing carton of the type where the sheet material outlet is spaced from the cutter and where sheet material is drawn in angled relationship to the cutter for severmg.

It is a further object of preferred embodiment of this invention to provide a dispensing carton with improved means to shield the cutter when the carton is not in use.

It is also an object of this invention to provide a blank adapted to be assembled to form the above-mentioned novel dispensing carton and providing the total material of construction of said carton except for the cutter and any means used to fasten the carton together.

BRIEF DESCRIPTION OF THE DRAWINGS In describing preferred embodiments of the invention reference is made hereinafter to the accompanying drawings in which FIG. 1 is a plan view of a one-piece blank from which FIG. 4 is a perspective view of the assembled carton with the cover structure in closed position locking the front wall in outward position and with the cutter left off. the front wall.

FIG. 5 is a vertical sectional view of the carton housing a supply roll of sheet material with the front wall of the carton in outward position and. the sheet material in position ready for tearing.

DESCRIPTION OF PREFERRED EMBODIMENTS Referring first to FIG. 1, the carton is formed from a substantially rectangular blank, preferably of corrugated paperboard, suitably divided by cut and score lines into a conglomerate of connected panels and flaps.

The blank includes four substantially equal area panels of elongate substantially rectangular configuration. These panels are respectively denoted 10, 12, 14 and 16. The top and bottom edges of a panel define the length of that panel and the right and left edges of a panel define the width of that panel.

Score lines

18, 20, 22 and 24 respectively define the top (inner long), bottom (outer long), left and right edges of panel 10.

An elongate slot 26 is contained in panel 10 and has inner and outer edges (respectively 260 and 26b) .substantially parallel to score

lines

18 and 20. Edge 26b is positioned closer to score line 20 than to score line 18, and preferably the distance between edge 26b and score line 20 is less than about 30 percent of the dis tance between

score lines

18 and 20. The slot 26 functions as a dispensing outlet for sheet material in the assembled carton.

Score lines

28, 18, 30 and 32 respectively define the top, bottom, left and right edges of panel 12.

Score lines

34 and 28 respectively define the top and bottom edges of panel 14. Cut

lines

36 and 38 respectively define the left and right edges of panel 14.

A free edge 40 defines. the top edge of panel 16.

Score lines

34, 42 and 44 respectively define the bottom, left and right edges of panel 16.

A panel 46 of elongate rectangular configuration has a top edge defined by score line 20. A score line 48 defines its bottom edge. Cut

lines

50 and 52 respectively define its left and right edges. Panel 46 has, for example, a width approximately 40 percent of the width of panel 10.

A panel 54 of elongate substantially rectangular configuration has a top edge defined by a score line 56 which is substantially parallel to score line 48. Score line 56 is slightly shorter than the score line 48 and has a center vertically aligned with the center of score line 48 so that its endpoints are spaced slightly inwardly of the endpoints of score line 48. The panel 54 has a free bottom edge 58 which is parallel to score line 56 except that it contains three protrusions 60, one at approxithe carton is constructed, with a cutting edge secured.

thereto. The depicted surface forms interior walls of the carton.

FIG. 2 is a perspective view of the assembled carton with cover structure in position to shield the cutting edge.

FIG. 3 is a perspective view of the assembled carton with the cover structure in open position and the front wall moved to an outward position, and with the cutter left off the front wall.

mately the center portion of theedge 58 and the others somewhat inwardly of the ends of edge 58. The panel 54 has a left edge 62 and a right edge 64. The panel 54 has a width at a location where there is no protrusion 60 very slightly greater than the width of panel 46.

The

panels

46 and 54 are joined by an area 66 having the configuration of an inverted symmetrical trapezoid. The trapezoid has a base defined by score line 48 and an edge parallel to the base defined by score line 56. It has a left side defined by free edge 68 and a right side defined by a free edge 70. It has a width sufficient to allow panel 54 to be folded parallel to panel 66.

A flap 72 is separated from the left edge of panel by score line 22 and a flap 74 is separated from the right edge of panel 10 by score line 24. The

flaps

72 and 74 are each of trapezoidal configuration with the score lines 22 and 24 defining bases of the trapezoids. The flap 72 contains an edge defined by a score line 76 and the flap 74 includes an edge defined by a score line 78. The score lines 76 and 78 are substantially exten sions respectively of the left and right ends of score line 20. The score lines 76 and 78 each have lengths, for example, approximately 50 percent of the height of the assembled container. The flap 72 has an edge parallel to score line 22 defined by a cut line 80. The flap 74 has an edge parallel to score line 24 defined by cut line 82. The out line 80 has a length, for example, approximately 50 percent of the length of score line 22, and the cut line 82 has a length, for example, approximately 50 percent of the length of the score line 24. The flap 72 has an edge defined by a out line 84, and the flap 74 has an edge defined by a cut line 86. The angles between score lines 76 and 22 and between

score lines

78 and 24 are each approximately 90. The angles between cut line 84 and score line 22 and between cut line 86 and score line 24 are each, for example approximately 45.

Flaps

88 and 90 each have the configuration of an irregular pentagon containing two pairs of parallel edges. One pair of parallel edges for flap 88 is defined by score line 76 and a free edge 92. The corresponding pair of parallel sides for flap 90 is defined by score line 78 and a free edge 94. The other pair of parallel edges for flap 88 is defined by cut line 50 and a free edge 96. The other pair of parallel edges for flap 90 is defined by cut line 52 and a free edge 98. The

edges

96 and 98 each extend vertically respectively slightly inwardly of cut lines 80 and 82. The free edges 92 and 94 are horizontally aligned with the outward extent of protuberances 60 on free edge 58 of panel 54. The fifth edges of each of

flaps

88 and 90 are respectively

free edges

100 and 102. In flap 88 the angles between

edges

92 and 96, edge 96 and score line 76, and between score line 76 and cut line 50 are each approximately 90 and the angles between edges 92 and 1110 and between edge 101) and cut line 50 are obtuse angles with the angle between

edges

92 and 100 being approximately 105. In flap 91), the angles between

edges

94 and 98, between edge 98 and score line 78, and between score line 78 and cut line 52 are each approximately 90 and the angles between out line 52 and edge 102 and between edge 102 and edge 94 are each obtuse angles with the angle between edge 102 and edge 94 being approximately 105.

Panels

104 and 106 are substantially square. Panel 104 has an inner vertically oriented edge defined by score line 30 and is separated from panel 12 thereby and panel 106 has an inner vertically oriented edge defined by score line 32 and is separated from the right side of panel 12 thereby. Panel 104 has an outer edge 108 which is parallel to score line 30. Edge 108 is a free edge. Panel 106 has an outer edge 110 which is parallel to score line 32. Edge 110 is a free edge. The extent of edges 108 an 110 and score

lines

30 and 32 define the height of the interior of the assembled carton.

Panels

104 and 106 have bottom edges respectively defined by

score lines

112 and 114.

Panels

104 and 166 respectively have top edges defined by

score lines

116 and 118. The extent of the score lines 112, 114, 116 and 118 define the width of the interior of the assembled container.

Flaps 1211 and 122 each have the configuration of an irregular pentagon. Two edges of flap 120 are defined by cut lines and 8 1 which separate flap from flap 72. Two edges of flap 122 are defined by

cut lines

82 and 86 which separate flap 122 from flap 74. Flap 120 has a vertically oriented outer free edge 124. Edge 124 is parallel to cut line 80 and score line 22 and has a length slightly less than the length of score line 22 such that its upper end is slightly below the upper end of score line 22. In like manner, flap 122 has a vertically-oriented outer free edge 126. Edge 126 is parallel to cut line 82 and score line 24 has a length slightly less than the length of score line 24 so that the upper end of edge 126 is slightly below the upper end of score line 24. Flap 120 has a bottom free edge 128. Flap 122 has a bottom free edge 130. The edge 128 is horizontally oriented and is spaced slightly upwardly of score line 76. The edge 1311 is horizontally oriented and is spaced slightly upwardly of score line 78. Flap 120 has a top edge defined by score line 132. Flap 122 has a top edge defined by score line 134. Line 132 is perpendicular to edge 124. Line 134 is perpendicular to edge 126. It is noted that edges 128 and are depicted and actually constructed to be of stepwise configuration but for simplification purposes these edges have been considered to be straight lines in the description of

flaps

120 and 122 as being of pentagon configuration since they approximate straight lines.

An area 136 of inverted trapezoidal configuration joins flaps 121) to panel 164. An area 138 of inverted trapezoidal configuration joins flap 122 to panel 106. The trapezoid of the area 136 has a base defined by score line 112 and an edge parallel to the base defined by score line 132; it has an outer side defined by a free edge 140 which joins edge 108 to edge 124 and an inner side defined by a portion of cut line 84. The trapezoid of area 138 has a base defined by score line 114 and an edge parallel to the base defined by score line 134-; it has an outer edge defined by a free edge 142 which joins edge 110 to edge 126. The

areas

136 and 138 allow for the folding respecof flaps 120 and 122 parallel respectively to

panels

164 and 106.

Flaps 144 and 1416 are each substantially square. Flap 144 has a bottom edge defined by score line 116 and is separated from panel 1116 thereby. it has a top edge defined by a out line 1 18. it has a right edge defined by out line 36 and is separated from panel 14 thereby. It has a free left edge which meets edge 188. Flap 146 has a bottom edge defined by score line 118 and is separated from panel 1116 thereby. It has a top edge defined by a out line 152. it has a left edge defined by cut iine 38 and is separated from panel 14 thereby. it has a free right edge 154 which meets edge 110.

Flaps

156 and 158 are connected to and extend outwardly respectively from the ends of panel 16, that is from the opposite edges defined respectively by score lines 42 and Flap 156 has an inner edge defined by score line 42. Flap 158 has an inner edge defined by score line 44. Flap 156 has a bottom edge defined by cut line 148, and flap 158 has a bottom edge defined by cut line 152. Flap 156 has an outer free edge 160 which extends vertically from the left end of cut line 148. Edge 160 has a length approximately 60 percent that of score line 42. Flap 158 has an outer free edge 162 which extends vertically from the right end of cut line 152 and has a length approximately 60 percent that of score line 44. Flap 156 has a free edge 164 joining the upper end of score line 42 with the upper end of free edge 160. Flap 158 has a free edge 166 joining the upper end of score line 44 with the upper end of free edge 162.

The

free edges

164 and 166 each comprise an outwardly extending curved portion interrupted by an inwardly extending slot portion and also by an inwardly extending curved portion different from the slot portion. In particular each of said free edges consists of (starting at its end closest to panel 16) an arcuate portion, an inwardly extending semicircular portion having its center on an extension of the arcuate portion, another arcuate portion, an inwardly extending elongated slot portion, another arcuate portion and a horizontally extending portion.

The arcuate portions each have diameters approximately equal to the width of panel 16. The arcuate portions for each flap have a common center within the blank.

The elongate slot for flap 156 is denoted 168, and the elongate slot for flap 158 is denoted 170. The slots each have a diagonally extending longitudinal axis. Slot 168 has an inner long edge 171 and an outer long edge 172;

inward extensions of these edges intersect the left end of score line 34. Slot 170 has an inner long edge 173 and an outer long edge 174; inward extensions of these edges intersect the right end of score line 34.

As described later, the

slots

168 and 170 function in combination with cover structure in the assembled carton as locking structure to lock the front carton wall in a position in obtuse angle relationship to the bottom carton wall. In particular, the locking structure providing means in the blank includes panel 10, structure connected therewith and adapted to be folded to depend therefrom including

panels

46 and 54 connected by area 66 whereby panel 54 can be folded to be positioned parallel to panel 46, and flaps 156 and 158 including their

respective slots

168 and 170.

The angle between the extension of each of the outer

long edges

172 and 174 to the points of intersection described and the score line 34 defines and is equal to the obtuse angle in the obtuse angle relationship referred to. Thus, the angling of the slot conforms with the obtuse angle relationship. Preferably, such angle ranges from about 110 to about 130, very preferably from about 1 to about 125. In the case of the blank specifically depicted in FIG. 1, this angle is approximately 120.

The upper free edge 40 of panel 16 carries a metal cutting edge 175 secured thereto for example by prongs punched inwardly from circular areas to extend through the carton stock. Sawtoothstructure of the cutting edge projects slightly above the level of edge 40 The score lines 18, 20, 22, 24, 28, 30, 32, 34, 42, 44, 48, 56, 76, 78, 112, 114, 116, 118, 132 and 134 function as fold lines (sites) in the assembly of the carton. I

The score line 18 also serves as a hinge in the opening and closing of the assembled carton.

The score line 34 also serves as a hinge and in particular as a pivoting site so that panel 16 is operatively connected to panel 14 so that it can be moved, that is swung from a position perpendicular to panel 14 to a position in obtuse angle relationship therewith after the assembly of the carton.

The cut lines 36, 38, 50, 52, 80, 82, 84, 86, 148 and 152 provide sites of disconnection in theassembly of the carton.

In the assembly of the carton, flaps 72 and 74 are folded upwardly respectively along

score lines

22 and 24 so as to be positioned perpendicular to panel 10. Flaps 88 and having respectively been carried with

flaps

72 and 74 are folded inwardly respectively along score lines 76 and 78 until the edges defined by

cut lines

50 and 52 are aligned with score line 20. Panel 46 is then folded upwardly along score line 20 carrying with it area 66 and panel 54. This folding is continued until panel 46 is perpendicular to panel 10 and

adjacent flaps

88 and 90. Panel 54 is then folded downwardly along area 66 thereby enclosing

flaps

88 and 90 between

panels

46 and 54 and such folding is continued until protrusions 60 wedge against panel 10 thereby exerting pressure on panel 10. Panel 54 is then fastened in position parallel to and overlying panel 46 and flaps 88 and 90, for example by stapling. The portion folded and fastened thus far provides cover structure, that is closure means, including a top wall defined by panel 10 and structure depending therefrom in the assembled carton.

Then panel 14 is folded upwardly along score line 28 until it is perpendicular to panel 12. It carries with it panel 16 and flaps 156 and 158.

Also flaps 144 and 146 are folded upwardly respectively along

score lines

116 and 118 until these members are respectively perpendicular to

panels

104 and 106.

Panels

104 and 106 are then folded upwardly along

score lines

30 and 32 respectively with

flaps

144 and 146 being guided inwardly of panel 14 during such folding. This folding is continued until

panels

104 and 106 are perpendicular to panel 12 and flaps 144 and 146 respectively overlie left and right portions of panel 14. Panel 104 carries with it area 138 and flap 120. Panel 106 carries with it area 138 and flap 122.

Next, flaps 120 and 122 are folded inwardly respectively along

areas

136 and 138 until

flaps

120 and 122 are approximately parallel respectively to

panels

104 and 106 to provide end structure for the carton comprising a pair of spaced parallel walls at each end.

Flaps

156 and 158 are then folded inwardly respectively along

score lines

42 and 44 until these flaps are perpendicular to panel 16.

Then panel 16 is folded downwardly toward panel 12 alongscore line 34 with flap .156 being guided into the cavity defined by the spaced parallel walls provided by the structure of flap 120 and panel 104 and flap 156 being guided into the cavity defined by the spaced parallel walls provided by the structure of flap 122 and panel 106. Folding is continued until panel 16 is perpendicular to panel 14 and flaps 156 and 158 are telescoped into the aforedescribed cavities.

The carton assembled thus far is oriented so panel 14 provides its bottom wall. A roll of sheet material, for example aluminum foil, is inserted so as to rest on panel l4 and flaps 144 and 146 with the roll dimensioned such that its ends maintain

flaps

120 and 122 in place as the inner walls of each pair of spaced parallel end walls. Panel 10 is then folded downwardly along score line 18 toward panel 14 until panel 30 is perpendicular to panel 12 and the structure depending downwardly from panel 10 overlies outer surface of

panels

104, 106 and 16.

The carton in assembled form is depicted in FlGS. 2, 3, 4 and 5.

The closure structure includes panel 10 which provides a top wall containing an elongated slot and also includes downwardly depending structure carried on panel 10 including panel 46 reinforced by overlying panel 54 depending from the front edge of panel 10 and flaps 72 and 74 depending from alternate ends of panels 10. It is integral with the rest of the carton at a connection at the rear edge of panel 10 and the upper edge of the rear carton wall at the hinge provided at score line 18.

The rear wall of the carton is defined by panel 12.

The bottom wall is defined by panel 14.

The front wall is defined by panel 16 which is swingable at the hinge connecting panel 16 with panel 14 and carries the cutting edge 17S associated with its top free edge. The front wall has slot-containing flap 156 extending inwardly at the edge at one end and slotcontaining flap 158 extending inwardly at the edge at the other end.

Spaced parallel walls are provided at one end of the carton by panel 104 and flap 120; these define a cavity for receiving flap 156 in telescoping relation when the front wall is positioned substantially perpendicular to the bottom wall. Spaced parallel walls are provided at the other end of the carton by panel 106 and flap 122; these define a cavity for receiving flap 158 in telescoping relation when the front wall is positioned substantially perpendicular to the bottom wall.

In FIG. 2, the front wall is depicted in position perpendicular to the bottom wall and maintained in such position by the overlying downwardly depending structure of the closure.

As shown in FIG. 3, when the closure structure is opened exposing the interior of the carton the front wall defined by panel 16 is movable, that is swingable, from the position substantially perpendicular to the bottom wall defined by panel 14 pivoting along the hinge structure connecting panels l4 and 16 whereby

flaps

158 and 156 are moved out of telescoping relationship with the spaced parallel walls at each end of the container and the front wall defined by panel 16 is moved into obtuse angle relationship with the bottom wall so that edge 40 is spaced outwardly compared to its position where the front wall is positioned perpendicular to the bottom wall.

When the carton is to be put into use dispensing from a supply roll of sheet material, the closure structure is opened by pivoting panel 10 at line 18 and the leading edge of the sheet material from the supply roll is threaded through slot 26. The front wall of the carton is then moved, that is swung, forward by pivoting panel 16 along score line 34 as depicted in FIG. 3. The cover structure is then lowered with the angling of panel 16 being adjusted if necessary so that the structure depending downwardly from the cover structure including panel 46 is advanced into

slots

170 and 168 thereby locking the front wall in obtuse angled position. FIG. 4

depicts the front wall locked in obtuse angled position by the cover structure.

To obtain a piece of sheet material, sheet material is pulled forwardly out of slot 26 until it is advanced past the cutter 175 on top edge of the angled front wall defined by panel 16. This is depicted in FlG. 5 wherein the supply roll, for example a roll of aluminum foil. housed by the carton is denoted by numeral 200 and the sheet material threaded through the elongated slot is denoted by numeral 202.

When the sheet material is in position as shown in FIG. 5, a piece is obtained by pulling outward to obtain a desired length and downward over cutting edge 175 to sever such piece. When this occurs there remains ex posed outside the carton a piece of sheet material which is readily grasped due to the spacing of the cutting edge 175 from the sheet material outlet defined by slot 26.

The obtuse angle relationship of the front wall de fined by panel 16 with the bottom wall defined by panel 14 preferably provides approximately a angle between the sheet material and the cutter whereby severing is made easier than if the sheet material were being advanced parallel to the cutter. As previously indicated the obtuse angle preferably ranges from about 1 10 to about 130, very preferably from about 1 15 to about If the angle is less than about 1 10, a ragged tear may be obtained. If the angle is more than about the person utilizing the dispenser may have to assume an awkward position to effect tearing.

Thus, the aforedescribed carton has the advantage that the cutter can be shielded, for example during shipping of the carton. This is carried out by position ing the front wall substantially perpendicular to the bottom wall with the side flaps 156 and 158 telescoped within the spaced parallel walls at each end of the container and utilizing the cover structure and particularly the downwardly depending structure including panel 46 to overlie the front wall thereby covering the cutter and maintaining the front wall in said perpendicular position.

For use, the cutter can be angled outwardly to provide additional spacing of the cutter from the sheet material outlet thereby ensuring sheet material being exposed and available for grasping without reaching into the box after a piece of sheet material has been severed. Moreover, the angled relationship positioning has the advantage of providing for easier tearing.

The carton has the additional advantage of being easily assembled from a substantially rectangular onepiece blank with which a cutting edge has been associated. The carton is especially advantageous for use in dispensing from a roll of aluminum foil.

The spacing of elongate slot 26 so that edge 26b is positioned closer to the front edge of the top wall, that is the edge of panel 10 defined by score line 20, than to the rear edge and preferably so that the distance be tween edge 26b and score line 20 is less than about 30 percent of the width of the top wall permits the sheet material from the supply roll to be pulled substantially straight upwardly through slot 26 thereby providing ease of pulling and minimizing the tendency of the sheet material to fracture during pulling.

The upward pressure on the top wall exerted by protuberances 60 maintain the top wall spaced upwardly from the cutter when the closure is being utilized to shield the cutter. This prevents the interior surface of the top wall from becoming frayed by the cutter if downward pressure is exerted on the top wall for example, by an adjacent carton in a stack of cartons or when a plurality of cartons are packed in a case for shipping.

The arcuate portions and inwardly extending semicircular portions in the free edges of

flaps

156 and 158 minimize the possibility of said edges frictionally en gaging

areas

136 and 138 when

flaps

156 and 158 are drawn out of telescoping relationship and correct for deviations in tolerances in the carton material and for expansion thereof.

Although only certain modifications of preferred forms of this invention have been shown and described, it is clear that many others could also be made without departing from the spirit of the invention. It is therefore intended that the invention be defined by the scope of the appended claims.

I claim:

1. Dispensing carton for a supply roll of sheet material, said carton comprising top wall means comprising panel means hinged at a rear edge and containing an elongated slot, bottom wall means,

front wall means including panel means hinged at its bottom to said bottom wall means and having a free edge at its top, and movable from a position substantially perpendicular to said bottom wall means to a position in obtuse angle relationship with said bottom wall means to space said free edge outward from the panel means of said top wall means, cutter means associated with said free edge,

flap means associated with said front wall means,

means depending from a front edge of the panel means of said top wall means, movable by movement of the panel means of the top wall means at the hinge at its rear edge, to overlie and shield said cutter means when the panel means of said front wall means is in a position substantially perpendicular to said bottom wall means, and to interact with said flap means when the panel means of said front wall means is in a position in obtuse angle relationship with said bottom wall means to lock said front wall means in said relationship. 2. Dispensing carton as defined in claim 1, in which the panel means of said front wall means has left and right edges, and said flap means comprises a flap ex-' tending inwardly from said left edge and a flap extending inwardly from said right edge, each of said flaps containing a free upper edge comprising an inwardly extending elongated slot, said slots being configured and positioned to receive said depending means when said front wall means is positioned in said obtuse angle relationship to thereby lock said front wall means in said relationship.

3. Dispensing carton as defined in claim 2, in which said carton has structure at each end comprising spaced wall means defining a cavity for receiving a flap of said flap means in telescoping relation when said front wall means is positioned substantially perpendicular to said bottom wall means.

4. Dispensing carton as defined in claim 3, in which said carton is assembled from a single blank with which said cutting means has been associated.

5. Dispensing carton as defined in claim 1, in which said obtuse angle ranges from about to about 130.

6. Dispensing carton as defined in claim 5, in which said obtuse angle ranges from about 1 l5 to about

Claims

1. Dispensing carton for a supply roll of sheet material, said carton comprising top wall means comprising panel means hinged at a rear edge and containing an elongated slot, bottom wall means, front wall means including panel means hinged at its bottom to said bottom wall means and having a free edge at its top, and movable from a position substantially perpendicular to said bottom wall means to a position in obtuse angle relationship with said bottom wall means to space said free edge outward from the panel means of said top wall means, cutter means associated with said free edge, flap means associated with said front wall means, means depending from a front edge of the panel means of said top wall means, movable by movement of the panel means of the top wall means at the hinge at its rear edge, to overlie and shield said cutter means when the panel means of said front wall means is in a position substantially perpendicular to said bottom wall means, and to interact with said flap means when the panel means of said front wall means is in a position in obtuse angle relationship with said bottom wall means to lock said front wall means in said relationship.

2. Dispensing carton as defined in claim 1, in which the panel means of said front wall means has left and right edges, and said flap means comprises a flap extending inwardly from said left edge and a flap extending inwardly from said right edge, each of said flaps containing a free upper edge comprising an inwardly extending elongated slot, said slots being configured and positioned to receive said depending means when said front wall means is positioned in said obtuse angle relationship to thereby lock said front wall means in said relationship.

5. Dispensing carton as defined in claim 1, in which said obtuse angle ranges from about 110* to about 130*.

6. Dispensing carton as defined in claim 5, in which said obtuse angle ranges from about 115* to about 125*.