US2130602A - Double-walled box - Google Patents

Description

R. E. SMlTH DOUBLE WALLED BOX Sept. 20, 1938;

Filed May 20, 1936 2 Sheets-Sheet l INVENTOR. f/b/iam Z. 6/77/77? WM ATTORNEYS Sept. 20, 1938. R. E. SMITH DOUBLE WALLED BOX Filed May 20, 1936 2 Sheets-Sheet 2 INVENTOR. lF/t/wfd Z 6/77/7/7 Patented Sept. 20, 1938 greater PATENT OFFICE DOUBLE-WALLED BOX Richard E. Smith, Kalamazoo, Mich, assignor to Sutherland Paper Company, Kalamazoo, Mich.

Application May 20,

13 Claims.

The main objects of this invention are:

First, to provide a double-walled paper box or receptacle formed of an integral blank scored for folding whichmay be shipped in the knockdown and readily set up for use.

Second, to provide a double-walled paper box in which there is comparatively little waste in forming the blank from a sheet of material.

Third, to provide a double-walled box in which the inner and outer walls are securely held in spaced relation and one which is quite rigid even when made of relatively light stock.

Objects relating to details and economies of the invention will appear from the description to follow. The invention is defined and pointed out in the claims.

A structure which is a preferred embodiment of the invention is illustrated in the accompanying drawings, in which:

Fig. 1 is a perspective view of a box embodying my invention and having a sliding or telescoping trating another step in the setting up of the box.

Fig. 6 is an enlarged horizontal view on line 6-6 of Fig. 2.

Fig. '7 is a plan view of the blank. Reference being had to the drawings, my improved box is preferably formed of an integral blank illustrated in Fig. 7 and comprising a bottom I, outer side walls 2, 2, and outer end walls 3, 3, joined to or extending from the side and end edges of the bottom. The blank is variously scored as indicated by dotted. lines 4 to facilitate folding. I

The outer side walls 2 have inner side wall extensions 5, 5, joined thereto by the top spacer members 6, 6,-While the outer end walls 3, 3 have inner end walls I, I joined thereto by the top spacer members 8, 8.

The inner side walls 5 have sealing flaps 9, 9 on their longitudinal edges which are provided with adhesive and lapped upon and secured to the bottom as clearly shown in the drawings. The outer side walls have end flap extensions l0 and H notched at l2 and I3 so that they may be set up and interlocked as clearly shown in Fig. 5. The end flaps l0 have inturned top spacer members M. It will be noted that the end flaps I0 1936, Serial No. 80,724 I are diagonally opposite so that a spacer member is provided at each end of the box.

The sidewall top spacer members 6 are provided with laterally disposed inwardly projecting tongues l5 which lie in the plane of the parts [4 when the box is set up, see Fig. 3.

The inner side wall members 5 have longitudinally projecting tongues [6 at the ends thereof. The inner side and end walls are shorter than the corresponding outer walls by approximately the width of the top spacer members.

The inner end walls 1 have out-turned bottom spacer members I! on their outer edges, these being turned outwardly to prevent the outward collapsing of the inner end walls or to support them in a substantially vertical position. The inner end walls have tongues l8 adjacent their upper edges, these tongues being turned outwardly and engaged under thetongues l5 when the box is set up. They are also provided with relatively short tongues or lugs [9 which snap behind or engage the end edges of the inner side walls below their tongues l6. In erected position, the inner end walls and their outwardly disposed spacer members I! are disposed behind the end edges of flaps 9, the said end edges abutting the walls and serving as cleats to resist displacement of the end walls.

To facilitate folding the upper edges of the tongues l8 are beveled at 20 so that suitable clearance is provided, permitting their engagement under the tongues I6. v

Preferably, V-shaped notches 2| are formed in the top spacer members l6 and the adjacent portion of the inner end walls, the apexes of these notches being in the folding line joining the inner end walls 1 to the top spacer members 8.

It will be noted that there is relatively little waste when the blank is cut or died out from the sheet or web.

The box may be shipped in the knockdown with the securing flaps 9 glued and readily set up by the user, the parts other than these inner side wall securing flaps being interlocking. The box may be formed of comparativelylight material and when set up is very secure and rigid.

In the embodiment illustrated, I provide a telescoping cover 22 having window openings 23 provided with a transparent window 24. It is obvious that other types of covers may be employed.

I have illustrated and described my improvements in a very practical embodiment thereof. I have not attempted to illustrate or describe certain modifications or adaptations which I contemplate as it is believed that this disclosure will enable those skilled in the art to embody or adapt my improvements as may be desired.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is:

1. A double-walled box formed of an-integral scored blank comprising a bottom, outer side and end walls extending from the side and end edges of the bottom, the outer side and end walls having inner side and end walls joined to the top edges thereof by ,top spacer members, the inner side and end walls being shorter than the corresponding outer walls by approximately the width of said top spacer members, the inner side walls being provided with sealing flaps on their longitudinal edges secured to the bottom, the inner end walls terminating in out-turned bottom spacer members, the outer side walls having interlocking end flaps at the ends thereof disposed on the inner sides of the outer end walls, the diagonally opposite end flaps having spacer members on the top edges thereof, the inner side walls having centrally disposed longitudinal tongues at the ends thereof and the side top spacer members having laterally projecting tongues at their ends lying in the planes of the top spacer members on said end flaps, the inner end walls having outwardly disposed tongues at the ends thereof interlocking below said inwardly projecting tongues on said side top spacer members and longitudinally disposed tongues at the ends thereof engaged with the end edges of the inner side walls below the said longitudinally projecting tongues thereof.

2. A double-walled box formed of an integral scored blank comprising a bottom, outer side and end walls extending from the side and end edges of the bottom, the outer side and end walls having inner side and end walls joined to the top edges thereof by top spacer members, the inner side and end walls being shorter than the corresponding outer walls by approximately the width of said top spacer members, the inner side walls being provided with sealing flaps on their longitudinal edges secured to the bottom, the inner end walls terminating in out-turned bottom spacer members, the outer side walls having interlocking end flaps at the ends thereof disposed on the inner sides of the outer end walls, the inner side walls having longitudinal tongues at the ends thereof and the side top spacer members having laterally projecting tongues at their ends,

the inner end walls having outwardly disposed tongues at the ends thereof interlocking below said inwardly projecting tongues on said top spacer members and longitudinally disposed tongues at the ends thereof engaged with the end edges of the inner side walls below the said longitudinally projecting tongues thereof.

3. A double-walled box formed of an integral scored blank comprising a bottom, outer side and end walls extending from the side and end edges of the bottom, the outer side and end walls having inner side and end walls joined to the top edges thereof by top spacer members, the inner side walls being provided with securing flaps on their longitudinal edges secured to the bottom, the inner end walls terminating in out-turned bottom spacer members, the outer side walls having interlocking end flaps at the ends thereof disposed on the inner sides of the outer end walls, the side top spacer members having laterally projecting tongues at their ends, the inner end walls having outwardly disposed tongues at the ends thereof interlocking below said inwardly projecting tongues on said side top spacer members, and longitudinally disposed tongues at the endsithereof engaged with the end edges of the inner side walls.

4. A double-walled box formed of an integral scored blank comprising a bottom, outer side and end walls extending from the side and end edges of the bottom, the outer side and end walls having inner side and end walls joined to the top edges thereof by top spacer members, the inner side walls being provided with securing flaps on their longitudinal edges securedto the bottom, the inner end walls terminating in outturned bottom spacer members, the outer side walls having interlocking end ,flaps at the ends thereof disposed on the inner sides of the outer end walls,'the inner side walls having longitudinal tongues at the ends thereof, the inner end walls having longitudinally disposed tongues at the ends thereof engaged with the end edges of the inner side walls below the said longitudinally projecting tongues thereof.

5. A double-walled box comprising a bottom, outer side and end walls extending from the side and end edges of the bottom, the outer side and end walls having inner side and end walls joined to the top edges thereof by top spacer members, the inner side walls being provided with securing flaps on their longitudinal edges secured to the bottom, the inner end walls terminating in outturned bottom spacer members, the outer side walls having interlocking end flaps at the ends thereof disposed on the inner sides of the outer end walls, the side top spacer members having laterally projecting tongues at their ends, the inner end walls having outwardly disposed tongues at the ends thereof interlocking below said inwardly projecting tongues on said side top spacer members and longitudinally disposed tongues at the ends thereof engaged with the end edges of the inner side walls.

6. A double-walled box comprising a bottom, outer side and end walls extending from the side and end edges of the bottom, the outer side and end walls having inner side and end walls joined to the top edges thereof by top spacer members, the inner side walls being provided with securing flaps on their longitudinal edges secured to the bottom, the inner end walls terminating in outturned bottom spacer members, the outer side walls having interlocking end flaps at the ends thereof disposed on the inner sides of the outer end walls, the inner side walls having longitudinal tongues at the ends thereof, the inner end walls having longitudinally disposed tongues at the ends thereof engaged with the end edges of the inner side walls below the said longitudinally projecting tongues thereof.

'7. A double-walled box comprising a bottom, outer side and end walls extending from the side and end edges of the bottom, the outer side and end walls having inner side and end walls joined to the respective top edges thereof by spacer members, the inner end walls being of such width as to permit them to be swung between the inner side walls to erected position, the bottom edges of the inner side walls being secured to the bottom, the outer side walls having interlocking end flaps at the ends thereof disposed on the inner sides of the outer end walls, the side spacer members having laterally projecting tongues at their ends, the inner end walls having tongues at the ends thereof interlocking below said tongues on said top spacer members and other tongues on their ends engaged with the end edges of the side walls.

8. A double-walled box comprising a outer side and end walls extending from the side and end edges of the bottom, the outer side and end walls having inner side and end walls joined to the top edges thereof by spacer mem-' bers, the inner end walls being of such width as to permit them to be swung between the inner side walls to erected position, the bottom edges of the inner side walls being secured to the bottom, the outer side walls having interlocking end flaps at theends thereof disposed on the inner sides of the outer end flaps, the side spacer members having laterally projecting tongues at the ends thereof, the inner end walls having outwardly disposed tongues at the ends thereof interlocking below said tongues on said top spacer members.

9. A double-walled box comprising a bottom, outer side and end walls extending from the side and end edges of the bottom, the outer side and end walls having inner side and end walls joined to the top edges thereof by spacer members, the inner end walls being of such width as to permit them to be swung between the inner side walls to erected position, the bottom edges of the inner side walls being secured to the bottom, the outer side walls having interlocking end flaps at the ends thereof disposed on the inner sides of the outer end walls, the inner end walls having tongues at the ends thereof engaged with the end edges of the inner side walls.

10. A double-walled box comprising a bottom,

outer side and end walls extending from the side inner sides of the outer end walls, the side spacer members having laterally projecting tongues at their ends, the inner end walls terminating in out-turned bottom spacer members, and having tongues at the ends thereof interlocking below said tongues on said top spacer members and bottom,

other tongues on their ends engaged with the end edges of the inner side walls.

11. A double-walled box comprising a bottom, outer side and end walls extending from the side and end edges of the bottom, the outer side and end walls having inner side and end walls joined to the top edges thereof by spacer members, the inner side walls being provided with securing flaps on their longitudinal edges secured to the bottom, the outer side walls having interlocking end flaps at the ends thereof disposed on the inner sides of the outer end walls, the inner end walls terminating in out-turned bottom spacer members, and having tongues on their ends engaged with the end edges of the inner side walls.

12. A double-walled box comprising a bottom, and outer side and end wallsextending from the side and end edges of the bottom, the outer side and end walls having inner side and end walls joined to the respective top edges thereof and spaced therefrom in erected position of the box,

outwardly and engaging said bottom between the inner and outer end walls, the inner end walls abutting the end edges of said flaps in erected position to resist displacement of said end walls.

13. A double-walled box comprising a bottom,

and outer side and end walls extending from the side and and edges of the bottom, the outer side and end walls having inner side and end walls joined to the respective top edges thereof and spaced therefrom in erected position of the box, the inner side walls having securing flaps on their longitudinal edges secured to the bottom, the inner end walls having spacer members on the edges thereof adjacent the bottom, said spacer members lying between the inner and outer end walls and maintaining the spacing thereof, the inner end walls abutting the end edges of said flaps in erected position to resist displacement of said end walls.

RICHARD E. SMITH.

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