US2533070A - Carton - Google Patents

Description

W. J. TYRSECK Dec. 5, 1950 CARTON Filed Oct. '26, 1949 INVENTOR. J. Tyrseck Walter BY A TO NEYS.

, Patented Dec. 5, 1950 2,533,070-

UNITED STATES PATENT OFFICE" CARTON Walter J. Tyrseck, Montvllle, Conn, assignor to Robertson Paper Box Company" Incorporated, Montville, Conn., a corporation of Connecticut Application October 26, 1949, Serial No. 123,766

10 Claims. 1

This invention relates to improvements in cartons.

More particularly, the invention is concerned with providing a shock-proof or cushioned receptacle for packaging bottles or like articles, and which may be made of pasteboard or like inexpensive material on existing automatic machinery.

For a full understanding of the invention, a detailed description of the container will now be given in connection with the accompanying drawing and the features forming the invention will then be specifically pointed out in the appended claims.

2 reason that the blank in folding as hereinafter described will pass through the folding machinery in parallelism to these score lines.

For convenience of reference, the surfaces which are uppermost in the blank as shown in Figure 1 will be referred to as the faces of the panels, while the opposite surfaces will be referred to as the reverses thereof.

The container is designed for manufacture on a continuous roll-around principle and in the manner about to be described.

The first fold occurs on the line I6, panel I9 and panel I! being folded over onto panels I5 and I3 and in face to face relation thereto.

In the drawing: The next fold occurs at line I2, bringing the re- Figure 1 is a flat view of the container blank; verse of panels I1 and I9 over panels and 9. Figure 2 is a view showing the completed con- The next fold occurs online 8, bringing the retainer in collapsed condition; verse of panels I5 and I3 overthe faces of panels Figure 3 is a front elevation of the container I and 5. The last fold occurs on the line 4, with part of one wall broken away to show the bringing the faces of panels I and 3 over the internal structure; folded structure and hence over the reverse of Figure 4 is a section on the line 4--4 of Figure panels I I and 9. The reverse of panel 9 will 3; and previously have been prepared with adhesive Figure 5 is a plan view on an enlarged scale over the area indicated at B and will thus join of the container with the top flaps open. panel 9 and outer terminal panel I together.

The invention is an improvement upon that disclosed in my previous application Serial No. 62,609 filed November 30, 1948 for'Cartons, now Patent No. 2,513,902, issued July 4, 1950.

The blank comprises four generally rectangu- While the last fold occurs from left to right, as it is more convenient to handle two panels to the left of line 4 in automatic folding machinery than to fold over the entire assembly to the right of this line, it will be observed that the lar panels I-, 3, 5 and I, adapted to form an actual folds imparted to the material are the outer box, an intermediate panel 9 and inner same as though this last fold on the line 4 had box panels II, I3, I5 and I1. These various been made by folding the entire assembly to the panels are disposed in an aligned series and are right thereof over, so that the collapsed box proseparated from each other by score lines 2, 4, duced is folded continuously in one direction.

6, 8, I0, I2, I4 and I6. An end flap or'inner The container thus produced is shown in colterminal panel I9 separated from the panel II lapsed condition in Figure 2,'in which the variby score line I8 is also provided. Score line I0 ous panels are identified by reference numerals may be partially cut through as at 29, to faciliwith the suffix F where the face of the panel is tate a sharper fold, and the score lines I2, I4 shown, and with the suflix R where the reverse and I6 are interrupted by general y U-shaped is shown. The folding operation along score cuts 0, defining oppositely facing projections or line I4 will have separated the projections 23 tabs 2I and 23. Similar cuts along the score and 2I along the U-shaped cuts defining the line I8 separating panels I! and I9, defining same, projections 2i protruding from the edge projections or tabs 20 extend from panel I9 of panel I3 and projections 23 protruding from into panel II. It will be noted that these prothe edge of panel I5.

jections are not accompanied by any reversely Panels II, I3, I5 and I1 will be somewhat narfacing projections as in the case of the projecrower than the panels 3, 5, I and I, to which tions formed along score lines I2, I4 and I6. they are juxtaposed in a completed box. The The blank includes alsov top flap elements 25, 21, width of panel I3, including the projections 2I 29 and 3I, bendable along the transverse score d 23 thereof. ill equal the width ofpanel 5 lines 24, 26, 28, 3|] and bottom flap elements 33, apart from the usual allowance for folding. 35, 31, 39 and 4| bendable on the score lines 34, Similarly, the width of panel I5, counting in the 36, 38, 40 and 42. Score lines 2 to 20 inclusive projections 2I and 23 thereon, will equal the are referredto as longitudinal score lines for the Width 9f panel I, while panel I'I, counting the 3 projections 23 thereon, will equal the width of panel 9.- Again, apart from the folding allowance, panel 9 will be less in width than panel I by the width of a projections 23. Similarly, the width of panel I9 including the projections 20' will equal the width of panel II excluding the projections 2I, which is to say that the width of this panel as measured on the score line IO' to score line I2.

Pressure on the edges of the collapsed container of Figure 2 will open it into rectangular form in the usual way, so that when the bottom tabs have been folded and tucked in it presents the appearance of Figures 3, 4 and 5. As will be observed from those figures, the four successive panels II, I3, I and I1 form an inner sleeve box spaced from the outer box, formed by the panels I, 3, 5 and I and connecting panels thereon, by a distance equal to the width of the projections 2|, 23. The inner terminal panel I9 forms a fifth inner sleeve panel joined along fold line I8 to the fourth inner sleeve panel I1 and lying fiat against the first inner sleeve panel II. The width of panel I9 including the projections 20' is substantially equal to that of panel II, so that the edge of panel I9 will extend substantially to panel I3 and the projections 20' will extend substantially to panel 9. In consequence, the fold line I8 and panel I! attached thereto are held in position widthwise of panel II. Moreover, this spacing is maintained by the projections. If new a bottle is inserted in the package, as indicated in phantom in Figure 4, it will be held by the inner box or sleeve, made up of panels II, I3, I5 and I1, in spaced relation to the outer wall of the box. This construction, in which an inner sleeve or container spaced from the outer container and in which the spacing is maintained by the projections 2I and 23, furnishes protection equivalent to that usually afforded by a separate insert of corrugated board, and eliminates the assembly operations and expense, since the entire container, including the inner sleeve is formed from a single blank by high speed and economical automatic machinery. The top fiaps 25, 21, 29 and 3| will be folded over and tucked-in in the usual way to close the package. The container of the present application differs from that of my application above mentioned in that the gluing down of the terminal element corresponding to panel I9 is eliminated. As is apparent from Figure 5, the panel I 9 lies against panel I I and holds the edge of panel I! along score line I8 in proper position widthwise of panel II. Movement forwardly in the box being prevented by the engagement of panel I9 against panel I3, and movement rearwardly being prevented by engagement of projections 20 against panel 9. Although the adhesive is eliminated, it will be observed that the present container is similar to that of my above mentioned application in that the four panels which completes the inner sleeve are positioned with reference to the first panel of the sleeve-by means of a terminal panel or flap lying flat against this first panel and serving to limit or prevent movement of the four panels of the inner sleeve widthwise of the first panel.

While the spacing projections 2I, 23 are most conveniently formed by means of the cut out C and are most advantageously placed at the fold lines between panels, rojections formed by bendable portions of the inner box panels in other ways may be utilized where desired, without departing from the invention in its broader aspects. It will also be noted that in certain cases down so as to become little more than a gluing flap capable of bridging the space between panel II and panel 3 and overlapping panel 9 sumciently to provide for an adhesive joint.

Provision for protecting the top or bottom of an article within the container against shock may also be made and such provision is provided at the bottom of the box in the embodiment illustrated. Since the ca of the bottle, when inserted in the box of Figure 4, is at the top it may readily be made shock-resistant. Such provision is ordinarily unnecessary at the top but may be provided where desired. The bottom is rendered shock-proof by placing the lower edges of the panels to the right of fold line 8 and the transverse fold line 42 at a somewhat higher level than the fold line 40 and the bottoms of panels I, 3, 5 and I. Becauseof this formation of the blank, the completed container as shown in Figure 4 has an irmer diagonal false bottom formed from the fla 4| upon which the bottle sits, thus spacing it from the bottom of the container and protecting it against shock. This result can be achieved broadly by the elevation of the fold line 42 by comparison with the fold line 40 and transverse fold lines to the left thereof, without correspondingl elevating the bottom edges of the adjacent panels, but the construction is more conveniently and economically constructed in the form in which shown. The flap 4| preferably extends to each side beyond the fold lines I2 and I4 for a distance equal to the width of the projections 2| and 23, so that this fiap in the completed box will engage against the outer box panels 3 and 1, thus furnishing additional lateral support for the bottom of the inner sleeve.

What is claimed is:

1. A shock-proof box formed of a single blank, comprising a plurality of aligned successive panels folded around each other in one direction only and forming an inner sleeve and an outer sleeve surrounding the same, the inner sleeve including four successive panels forming a rectangular structure and a fifth panel connected to thefourth such panel and overlying the inner surface of the first such panel, the said fifth inner sleeve panel having a projection extending outwardly from its fold line to engage the outer sleeve and having its edge substantially in. engagement with the second inner sleeve panel, for maintaining the fold line between the fourth inner sleeve panel and the said fifth inner sleeve panel in position widthwise of the first inner sleeve panel.

2. A box according to claim 1, comprising also flap elements attached to the panels and foldable to form an end closure.

3. A shock-proof box according to claim 2, including a flap element attached to an inner sleeve panel and folded to form an end support within the end closure, the fold line for the said inner end flap being spaced above the edges of the outer panels so that it lies in a slanted position to cushion the end of the box.

4. A blank according to claim 1, having an end flap on an inner sleeve panel extending beyond the fold lines defining the said panel, to engage against outer sleeve panels to each side thereof for furnishing additional lateral support for the inner sleeve.

5. A shock-proof has formed oil a single blank, comprising a plurality of aligned successive panels folded around each other ln one direction only and forming an inner sleeve and an outer sleeve surrounding the same, and spaced therefrom around all, sides, the panels forming the lines engaging the outer sleeve which surrounds the same to maintain the spacing and to support the inner sleeve and including a series of four successive inner-sleeve panels forming 9. rectangular sleeve structure, s fifth inner sleeve panel joined tothe fourth such panel along a fold line and lving against the inner surface of the first such inner sleeve panel, the said fifth inner sleeve panel also having projections from its fold line and'i ts width, plus its said projections, being substantially the same as that of the said first inner sleeve panel.

6. A box blanls'for forming a shoclr proof con tainer, comprising a plurality oi aligned successive panels defined and separated from each other by score lines and includins panels adiacent one end he forming an inner-sleeve and panels adjacentjthe other end for forming an outer sleeve surrounding the same, the width of the panels being such as to space the inner sleeve from the outer "sleeve, the panels forming the inner sleeve beiu'gjcut out along the score lines separating the same to form oppositely lacing projections of length corresponding to the dis-. tance between the inner and outer sleeves, whereby the blanl: may be folded to form a box in which the inner" sleeve is supported from the outer sleeve surrounding the same by means of the said projections, the terminal inner panel inner sleeve having projectlons from their iold having a projection from its score line, and in width, plus its projection, being substantially equal to that of the fourth panel away from it counting from the inner end of the blank, whereby the terminal inner panel will maintain the fold line between itself and the adjacent inner sleeve panel in position widthwise of the said fourth panel away from the terminal inner sleeve panel when the terminal inner panel is folded flat against the inner surface thereof.

7. A blank according to claim 6, comprising also end flaps in the outer sleeve panel for forming an end closure.

8. A blank according to claim 7, comprising also an end flap on an inner panel foldable to form an end support within the end closure.

9. A blank according, to claim 8, in which the fold line for the inner end flap is spaced above the edges of the outer panels so that it will lie in a slanted position to cushion the end of the box.

10. A blank according to claim 8, in. which the said end flap on the inner panel extends beyond. the fold lines defining said panel for engaging against outer sleeve panels to furnish additional lateral support for the inner sleeve.

WALTER J. TYRSECK.

nnrnnnnoss omen The following references are of record in. the file of this patent:

UNITED STATES PATENTS Number Name Date 975,121 Carter Nov. 8, 1910 2,513,902 Tyrseclr July 4, 1950

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