US2558918A - Lined carton - Google Patents

Description

J. A. ZINN, JR

LINED CARTON July 3, 1951 Original Filed March 19, 1947 Patented July 3, l1951 l' OFFICE LINED CARTON Julius A. Zinn, Jr., Chicago, Ill. Original application -March 19,A 1947,v Serial No.

1948, Serial N0. 36,705

5 Claims.

The present invention relates to improvements in cartons.

The present application is a division of the application, Serial No. 735,663, filed by the present applicant on March 19, 1947, Patent No. 2,464,065, March 8, 1949.

An object of the present invention is to provide an improved carton in which strength and rigid-- ity are attained with the use of relatively thin gauge material.

A further object is to provide an improved carton having an outer wall and a liner secured to said wall which carton may be readily assembled without rupturing the adhesion between said outer wall and said liner.

A further object is to provide an improved carton which is sturdy in construction, relatively cheap to manufacture, neat in appearance and well adapted to hold ne grain or liquid material.

A further object is to provide an improved liner adapted to be secured to a blank for forming a carton.

A further object is to provide an improved carton well adapted to meet the needs of commercial service.

Furtherobjects will appear as the description proceeds.

Referring to the drawings- Figure l is a view of a blank having a'liner attached thereto which blank and liner embody the principles vof the present invention;

Figure 2 is a sectional view on an enlarged scale showing parts of said blank and liner, said view being taken in the direction of the arrows 2 2 of Figure l;

Figure 3 is a fragmentary view in cross section showing a corner fold of the blank with the liner attached thereto; and

Figure 4 is a sectional View of a completed carton.

Referring rst to Figure 1, the numeral I indicates a blank which may be made from a sheet of cardboard or the like. The particular blank chosen for illustration is intendedfor a carton having uniform rectangular cross section throughout its length with end walls disposed in right angular relationship with the side walls though the invention is equally applicable to cartons having tapering walls, that is, cartons of the nesting type, as illustrated, for example, in applicants Patent No. 2,390,909 patented December 11, 1945. Secured to the under surface of the blank as illustrated in Figure l, which will be the inner surface thereof when the blank is shaped into a carton, is the liner II. Said liner Divided and this application 'July 2,

will be adhesively attached to the blank I0 throughout the area of'said liner except at regions adjacent to the crease lines of said blank. as will be explained presently.

The blank I0 chosen for illustration is generally rectangular in' outline, the top and bottom edges lying in the parallel lines IDA and IDB respe.

tively. Said blank has the parallel side edges I2v and I3 and is provided with the spaced crease lines I4, I5, I6 and Il. Crease line I4 is spaced from the side edge I2 and the crease line I6 is spaced from the crease line I5 to provide either the front or rear wall of the carton. Crease line I5 is spaced from the crease line I4 and the crease line I'I is spaced from the crease line I6 to provide each of the two opposite narrow side walls of the carton. The space between the crease line l1 and the edge I3 is a connector section and is utilized for securing the blank into a continuous outline rectangular in cross section. The part of the blank I0 between the edge I2 and the crease line I4 provides the relatively wide wall or panel I8, referred to hereinafter as the first wall or panel. The portion between the crease lines I4 and I5 provides the relatively narrow wall or panel I9, referred to hereinafter as the The portion between the second wall or panel. crease lines I5 and I 6 provides the relatively wide wall or panel 20 referred to hereinafter as the third wall or panel, and the portion between the crease lines I6 and Il provides the relatively narrow wall or panel 2|, referred to hereinafter as the fourth wall or panel. The portion between the crease line I1 andthe edge I3, indicated by the numeral 22. is a connector section and is adapted to be adhesively secured to the wall or panel I8.

The top and bottom edges of panel I8 f the first panel) are defined by the crease lines 23 and 24. respectively. The top and bottom edges of the panel I9 (the second panel) are defined by the crease lines n25 and 26, respectively. The top and bottom edges of the panel 20 (the third panel) are defined by the crease lines 21 and 28. The top and bottom edges of panel 2I (the fourth panel) are defined by the crease lines 29 and 30. The top and bottom edges of the connector section 22 are defined by the crease lines 3l and 32, respectively. The crease line 21 will preferably be disposed slightly higher than the crease lines 25 and 29, the crease lines 25 and 29 being in alignment with each other. The crease line 3| may be in alignment with the crease lines 25 and 29. The crease line 23 will preferably be slightly lower than the crease lines 25 and 29. These differences in the levels of the crease lines 23, 25, 29 and 3| will facilitate the folding of the top closure, as will appear presently. The difference in level of the crease line 21, with respect to the crease lines 25 and 29, will be approximately twice the thickness of the material of the blank. The level of the crease lines 25 and 29 will be spaced above the level of the crease line 23 approximately the thickness of said material.

The portion of the blank below the creaselines 2l, 26, 28, 30 and 32 will provide the bottom closure of the carton. The details of this bottom closure form no part of the present invention but are described and claimed in applicants co-pending application, Serial No. 750,954, led May 28, 1947. However, the bottom closure of the carton may take any preferred form as, for example, that disclosed in Patent 2,390,909 dated December 11, 1945; or .the top closure described and claimed in this application may be used if desired. The crease lines I4, I5, I6, I1, 23, 21, 3|, 24, 26, 28, 3|) and 32 .will be ruled into the blank III on the undersurface thereof as the blank is viewed in Figure'l so that said crease lines will biasthe parts at the sides thereof to bend inwardly, that is, toward the bottom side of the blank as viewed in Figure 1. Crease lines 25 and 29 will be ruled in from the top side of the blank as viewed in Figure 1. In this disclosure 'those crease lines ruled in from the bottom side of the blank will be indicated by plain solid lines whereas those crease" lines ruled in from the upper side of the blank as viewed in Figure l will be represented by solid lines having dots spaced therealong. Crease lines ruled in from the bottom sideof the blank whereby to bias ythe parts thereof to bend inwardly will be referred to as direct crease lines. Those crease lines ruled in from the top side of the blank as viewed in Figure l will be referred to as reverse crease lines.

cated above the crease lines 23, 25, 21,*29 and 3| are foldable portions adapted to form the top closure of the carton. The details of the top portion of the carton are fully disclosed in the applicants application, Serial No. 735,663, filed March 19, 1947, Patent No. 2,464,065, March 8, 1949, of which the present application is a division. However, the topclosure of the carton may take any preferred form.

The present invention contemplates the provision of a liner for the four side walls of the carton which liner is indicated by the numeral II in Figures 1, 2 and'3. Said liner will be provided withA a series of sets of score lines, each of said sets comprising a. center score line indicated by the numeral 1I and a pair of score lines 12-12 extending in the same general direction as but spaced from the center score line 1 I. Each score line 1I is intended to be located in juxtaposition with a crease line I4, I5 or I6 of the blank I0. The vertical edges of the liner II are indicated by the numerals 13 and 14, and the horizontal edges thereof are indicated by the numerals 15 and 16. The space bounded by the edges 13, 15 and 16 and the adjacent score line 12 define a panel 11. The score line 12-12 adjacent to the panel I9, together with the edges 15 and 16, dene a panel 18. The score line 12-12 adjacent to the panel 20, together with the edges 15 and 16, dene a panel 19. 'I'he 'score line 12--12 adjacent to the panel 20, together with the edges 15 and 16, define a panel80. The panels 11, 18, 19 and 80 of the liner II will be adhesively secured to the inner Wall of the blank (that is, the

provide hinge portions to permit proper bendingl I'he mode of operat'on of the above described embodiment of the p ese'nt invention is substantially as follows: i

The blank I0 as illustrated in Figure l readily bent along the crease lines I4, I5, I 6 and I1 into a substantially rectangular-contour. The connector section '22 will be located inside of the panel I8 (the'rst panel) and said connector section will be adhesively attached to the sideA of the' panel I8 to provide a tube of rapproximately rectangular cross sectional contour. The bottom portion of the carton below the crease lines 21|,V

26,.-28, 30 and 32 may be folded to provide a closure for the lower end of the tube, the details of this closure forming no part of the present invention. The carton thereby .provided may be A iilledA with material after which the top of the carton may be closed.

By reason of the novel liner arrangement, the required rigidity is obtained without the necessity for using heavy materials. Said liner may be attached to theblank I0 when said blank 'is in flat condition. It maybe folded up with the blank without danger of rupturing of the liner or of the adhesive material between. the liner and the blank;

Though a preferred embodiment ofthe present invention has been described in detail, Amany modf ications will occur to those skilled in the art. It 4 is intended -to cover all such modifications vthat fall within the scope of the appended claims.-

What i'sclaimed is: l 1. In combination, a fiat sheet of material,

said sheet being .providedVV with. crease lines to form'panels adaptdto form the sides of a tube and a liner adhesively secured to said sheet, said liner being provided with a plurali-ty of sets of scored portions, eachA ofsaid sets consisting of a center score line adapted to be located in juxtaposition with a creaseline on said sheet and tWo score lines parallel with said rst mentioned score` line, said middle score line being vreversely bent with respect to the other of said scored portions.

and with respect to the re-entrant angle adapted to be formed at the corresponding crease line of said sheet,'said liner being free of adhesive at the spaces between the outermost sccred'portions of each of vsaid sets.

2. In combination, a sheet of material provided with a crease line and a liner adhesively secured to said sheet, said liner being provided with a middle scored portion adapted to be located in juxtaposition with said crease line in said sheet and two other scoredportions parallel with said rst mentioned scored portion, said middle scored portion being reversely bent with respect to thc other of said scored portions and with respect to the crease formed by said crease line, said liner being free ofadhesive at the spaces between said two other scored portions.'

3. In combination, a sheet of'material provided with a crease line and a liner adhesively secured to said sheet, said liner being provided with a middle scored portion adapted to be 1otion with the respective crease lines Il, I5 and maybe 5 cated in juxtaposition with said fcrease line in said sheet and two scored portions parallel with said iirst mentioned scored portion, said middle scored portion being reversely bent with respect to the other of said scored portions and with respect to the crease formed by said crease line,

said liner being free of adhesive at the space between said two scored portions.

4. In a tube, in combination, a sheet of material provided with crease lines to form panels providing the sides of said tube and a liner secured to said sheet, said liner being provided with a plurality of sets of scored portions, each of said sets consisting of a middle scored portion adapted to be located in juxtaposition with a crease line on said sheet and two scored portions parallel with said rst mentioned scored portion, said middle scored portion being reversely bent with respect to the other of said scored portions and with respectto the re-entrant angle formed at the corresponding crease linesl of said sheet, said liner being free of attachment to said sheet at the spaces between the outermost scored portions of each of said sets.

5. In a tube, in combination, a sheet of material provided with crease lines to form panels providing the sides of said tube and a liner adhesively secured to said sheet, said liner being proscored portions and with respect to the re-entrant angle formed at the corresponding crease lines of said sheet, said liner being free of adhesive at the spaces between the outermost scored portions of each of said sets.

. JULIUS A. ZINN, Jn.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 2,071,745 Higginbottom Feb. 23, 1937 2,099,257 Bergsteln Nov. 16, 1937 2,202,879 Wentz June 4, 1940 2,364,576 Waters Dec. 5, 1944 2,407,802 Stotter Sept. 17, 1946

Images