US2194669A - Carton - Google Patents

Description

March 26, 1940. M. H. MuMFoRD CARTON Filed Feb. l, 1959 3 Sheets-Sheet l March 26, 1940.

M. H. MUMFORD n 2,194,669

`GARTON Filed Feb. 1, 1959 s sheets-sheet 2 7 Inventor l Melvin] HMwm cre A Home ys March 26, 1940. M, H. MuMFoRD CARTON Filed Feb. l, 1939 3 Sheets-Sheet 5 Illia;

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A iorneys Patented Mar.. 26, 1940 mila..

amputation retmary i, 193e, sensi No. 25am 8 Claims.

The present invention relates to cardboard or corrugated paper cartons or boxes designed primarily for use in packing and shipping flat glass articles, and has for its primary object to provide a shipping container of this character in which the side and end edges are formed of inner and outercontinuously extending strips of cardboard material, whereby to simplify the construction of the carbon and to provide increased strength for the edge portions thereof to prevent breakage of the glass contained therein.

A further object 'is to provide a carton of this character in'which'the parts may be formed of blanks of adesired size and easily and quickly assembled when needed to enclosefragile material, such as plate glass, for shipping purposes.

A still further object is to provide an article of this character which may be manufactured,

at relatively low cost, and which is otherwise m well adapted for the purposes for which the same is intended.

Other objects and advantages reside in the details of construction as more fully hereinafter describedgand claimed, reference being had to the accompanying drawings forming part hereof, wherein like numerals refer to like parts throughout, and in whichl Figure l is a perspective view of the completed u y carton. 'M Figure 2 is a top plan view showing one end open prior to sealing the same.

Figure 3 is a fragmentary sectional view taken substantially on a line'f--d of Figure L Figure `4 is a similar view taken substantially won a line d-i of Figure Il. l

Figure A5 is a fragmentary sectionalv view through one end of the carton with the inner sealing strip removed. Figure 6 is a perspective view of one of the il@ walls of the carton.

Figure 7 is a plan view' of the blank forming the outer sealing strip.

Figure 8 is a similar view of the inner sealing strip, and

ed Figure 9 is a perspective viewA of the reinforcing strip.

Referring now to the drawings-in detail, the numeral 5 designates one of the main walls of the carton which is of substantially rectangular 50 form and constructed preferably of corrugated cardboard, two of said walls being employedin d the construction of the carton, the walls being secured in spaced parallelism, and constituting the wp and bottom walls thereof ,when the carl s ton occupies the position as shown in Figurel.

In assemblingthe carton I employ'an inn-er sealing strip 6 and an outer sealing strip l, each of these strips Abeing constructed of elongated stripsof corrugated cardboard and are folded along transverse lines indicated at.V 3 to provide end Walls 9 and side walls It, the innersealing strip t being positioned around the marginal edges of the sheet iof material 5 and each of the Wall sections 9 and i@ are oldable along their longitudinal edges aS shown at i l to form in' m' turned flanges i2 adapted for flatwise engagement with the opposed faces ofK the two wall sections 5. The edges of the flanges it are notched as at 83 in the region of the transverse fold lines t inv order that the abutting edges of the iianges w yof/.tlrie side and end walls will form a mitered fit as shown at IQ. K 4

The anges i2 may be secured to the inneropposed surfaces of the wall sections 5 by bluing or in any other suitable manner, one of the wall 20 sections as indicated at i5, remaining unsecured, as shown in Figure 2 of the drawings, until the' article to be shipped in the cartonis sealed therein. The inner sealing strip S thus serves to secure the wall sections 5 in spaced parallel relaf gs tion.

The outer sealing strip l is identical in construction' to the sealingstrip t except for the provision of a tab 4extension it onone end thereof, the end wall sections of the outer sealing stripl 30 being designated bythe numeral l1 While-the side wall sections are designated at I8 separated by the transverse fold lines i9 and the longitudinally extending flaps are indicated at 2U, which are-foldable'along the longitudinal fold line 2i. a The ends of the flanges Ziirare likewise formed with the mitering edges 22.'

The outer sealing strip 'i is adapted to surround the marginal edges of the sheet 5as well as the inner sealing stript and the anges 2b 4@ are turned inwardly and secured against the outler surfaces of said sheet of material, either by gluing `or by stapling the same in 4position. as

shown at 2t. l

Interposed between the inner sealing strip 6 45 and the outer sealingstrip 'i is a reinforcing strip of cardboard 2t provided with transverse fold lines 25 to form the end'and side edges of the carton, the sealing strips 6 andc'l being preferably .formed of corrugated cardboard, while the rein- 5o forcing strip 2d is preferably formed'of solid cardboard. I

When the strips are secured in position along three of the sides of the carton as' shown in Figure 2, the remaining portion of the inner seal ing strip designated bythe numeral i and the remaining portion of the outer sealing strip -designated. by the numeral 2S as well as the free end portion of the reinforcing strip as shown at 2l cooperate to form a closure for the remaining edge ofthe carton and after the sheet of plate glass or other object is placed within the open end of the carton, these free end portions may then be closed in a manner corresponding to the otheredge portions of the carton and the ap it inserted between the adjacent sealed edges of the strip whereby to completely seal all open edges of the carton. v

lt will be understood that the -outer sealing strip may be constructed of sumcient width to enable the flanges 2t to overlap the side walls of the carton a desired distance to provide the necessary reinforcement for the sheets of material forming the walls'.

it is believed the details of construction and manner oi assembling the parts of the device will be readily understood from the foregoing without further detailed explanation.

Having thus described the invention, what claim is- 1. A packing box comprisinga pair of co-extensive iiat sheets of material forming a pair of the opposed walls of the box and sealing strips forming the side and end walls of the box and including an inner strip spacing the sheets in parallelism and an outer strip surrounding the edges of said sheets and said inner strip each of said strips including portions iiatwise engaging each sheet, the said portions being secured to opposite faces of the respective sheets.

2. A packing box comprising a pairof co-extensive flat sheets of material forming a pair of the opposed walls of the box and continuously formed sealingstrips forming the side and end walls of the box and including an inner strip spacing the sheets in parallelism and an outer strip surrounding the edges of said sheets and covering said inner strip each of said strips including portions iatwise engaging each sheet, the said portions being secured to opposite faces of tire respective sheets.

3.`A pacng box comprising a pair ofco-extensive at sheets of material forming a pair of the opposed walls of the box and continuously formed sealing strips forming the/ side and end walls of the box and including an inner strip spacing the sheets in parallelism and an outer strip surrounding the edges of said sheets and covering said inner strip, both of said sealing strips having inturned flanges secured respectively to the opposite surfaces "if each ofthe sheets.

4. A packing box comprising a pair of co-extensive flat sheets of material forming a pair of the opposed walls oi vthe box and continuously formed sealing strips forming the side and end walls of the box. and including an inner strip spacing the sheets in parallelism and an outer strip surrounding the edges of said sheets and covering said inner strip, both of said sealing strips having inturned flanges secured respectively to the opposite surfaces of each of the sheets and a reinforcing strip surrounding the edges of the sheets and interposed between said inner and outer strips.

5. in a packing box, a pair of col-extensive :dat sheets of material forming two of the opposed walls of the box, an inner elongated strip having portions foldable along transverse lines to form continuous side and end'l walls and also having portions foldable along longitudinal lines to form inturned anges secured to the opposed faces of the respectivesheets to space the sheets apart and an outer elongated strip having portions foldable along transverse and longitudinal lines similar to the inner strip and surrounding the side and end walls, the inturned iianges of the outer strip being secured to the outer surfaces of said sheets;

6. iin a packing box, a pair of co-extensive at sheets of material forming two of the opposed walls of the box, an inner elongated strip having portions foldable along transverse lines to form continuous side and end Walls and also having portions foldable along longitudinal lines to form inturned anges secured to the opposed faces of the respective sheets tospace the sheets apart and an outer elongated strip having portions foldable along transverse and longitudinal lines.

similar to theQ inner strip and surrounding the side and end walls, the inturned iianges of the formed reinforcing strip interposed between the said inner and outer strips.

7. In a packing box, a pair of co-extensive flat .sheets of material forming two of the opposed walls of the bo'x, an inner elongated strip having portions oldable along transverse lines to form continuous side and end walls and also having portions foldable along longitudinal lines to form inturned anges secured to the opposed faces of the respective sheets to space the sheets apart and an outer elongated strip having portions foldable along transverse and'longitudinal lines similar to the inner strip and surrounding the side and end walls, the inturned flanges of the outer strip being secured to the outer'surfaces of said sheets, and an elongated continuously formed reinforcing lstrip interposed between the said inner and outer strips and a tab on one end of said outer strip adapted for insertion between the opposite end ofsaid strip and the adjacent end of the reinforcing strip.

8. in a packing box, a'pair of coextensive sheets of material and a pair of channel strips, one of said strips extending around the marginal edges 'of the sheets and securedI to the inner faces of the sheets for maintaining the sheets in spaced relation and the other o f said channel strips surrounding the edges of said sheetsand the first named strip and secured to the outersurfaces of said sheets.

imam i- RY ORD.

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