IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0724762
(1985-04-18)
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발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
2 인용 특허 :
3 |
초록
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A fast food serving tray has the shape of a ship or boat. It is formed from a partly assembled, knocked down structure formed from an integral, single blank of cardboard or the like. The pre-assembled arrangement has the sides of the boat structure flat and co-planar with each other. The side walls
A fast food serving tray has the shape of a ship or boat. It is formed from a partly assembled, knocked down structure formed from an integral, single blank of cardboard or the like. The pre-assembled arrangement has the sides of the boat structure flat and co-planar with each other. The side walls are preferably adhesively secured to each other at each end of the tray. When the side walls are spread apart to form the rounded shape of a ship bowl, a folded bottom wall is brought into a planar relationship forming a reinforcement at the bottom edges of the side walls. Two generally circular openings are formed on top of the tray together with a relatively large rectangular central opening which is reinforced by a pair of inwardly turned rectangular panels, one at each side of the tray. The advance in the art is in an improved sturdiness and an ease of assembly.
대표청구항
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1. A foldable blank for forming a serving tray for fast food or the like, said blank including: (a) a quadrangular central section having two opposed, generally parallel, longitudinal sides and two opposed end edges; (b) a first bottom wall section connected to one of said sides of the central s
1. A foldable blank for forming a serving tray for fast food or the like, said blank including: (a) a quadrangular central section having two opposed, generally parallel, longitudinal sides and two opposed end edges; (b) a first bottom wall section connected to one of said sides of the central section by a first fold line generally coincident with the elongation of said one of said sides; (c) a second bottom wall section connected to the other one of said sides of the central sections by a second fold line generally coincident with the elongation of the other one of said sides; (d) said first bottom wall section being provided, at a normally inside surface thereof, with a first connecting strip disposed along and generally coincident with a free edge of the first bottom section remote from and generally parallel with said first fold line, said first connecting strip being separated from the rest of the first bottom wall section by a line of weakness generally parallel with said first fold line; (e) said second bottom wall section being provided, at a normally outside surface thereof, with a second connecting strip disposed along a margin thereof remote from and generally parallel with said second fold line, said second connecting strip being remote from the second fold line and close to but spaced from a free edge thereof remote from and generally parallel with said second fold line, whereby a free, non-connecting strip is provided between the second connecting strip and the free edge of the second bottom panel remote from the second fold line; (f) the distance of an outermost margin of the second connecting strip from the second fold line being generally equal to that between the said line of weakness and the first fold line; (g) a connecting tab section extending along and coincident with each of said end edges, generally the entire width of the central section, each tab section being comprised of two connecting tabs, one to each side of the central section, said tab sections being connected to the rest of the central section by an end line of weakness; (h) a generally H-shaped cut having a bar section and two leg sections, said cut being disposed centrally of the central section and being so arranged that said bar section coincides with a longitudinal centreline of the central section and is generally parallel with said sides, while the two leg sections of the cut are generally parallel with each other and extend transversely of said centreline, said two leg sections being equidistantly spaced from the point of intersection of longitudinal and transverse centrelines of the central section, the ends of the leg sections being each equidistantly spaced a predetermined distance from the respective adjacent side of the central section, whereby a generally rectangular panel is formed at each side of the bar section; (i) a pair of arcuate, generally parabolic line-of-weakness sections, one at each end of the central section, each of said parabolic line-of-weakness sections extending from the ends of one of the leg sections of the "H" and having arcuate side sections symmetrical with respect to the longitudinal centreline, and a peak section disposed near the respective end edge, said peak section being formed by a generally arcuate cut, said side sections including uncut but weakened subsections, whereby each arcuate line section and the associated leg section of said "H" form a generally parabolic panel narrowing in the direction away from a transverse centreline of the central section; and (j) a longitudinal straight line of weakness at each end of the central section, coincident with the longitudinal centreline of the central section and extending from the point of intersection of the respective leg section with the bar section to the adjacent end edge of the sheet. 2. A blank as claimed in claim 1, further comprising a generally circular cutout edge arranged to define the periphery of a cutout for a cup or the like, said cutout edge being disposed centrally of each of said generally parabolic panels. 3. A blank as claimed in claim 2, wherein said predetermined distance between the end of each of the leg sections and the adjacent side of the central section generally corresponds to the distance between the respective end of the associated leg section and the bar section of the cut. 4. A blank as claimed in claim 2, wherein the width of each connecting tab section decreases in the direction towards the longitudinal centreline of the sheet. 5. A blank as claimed in claim 2, wherein the connecting tab sections are provided with an adhesive coating at the normally inside surface of the blank. 6. A blank as claimed in claim 5, wherein the adhesive at the connecting tab sections and at said adhesive strips is a pressure-sensitive adhesive. 7. A blank as claimed in claim 2, wherein the side sections of the arcuate line sections are formed by alternating cut and weakened subsections. 8. A blank as claimed in claim 7, wherein the cut subsections are of a generally U-shaped configuration each open outwardly of the respective parabolic panel. 9. A blank as claimed in claim 1, further comprising a line of weakness generally parallel with the bar section and extending between free ends of the leg sections of the H-shaped cut. 10. A blank as claimed in claim 9, wherein each of said lines of weakness generally parallel with the bar section of the H-shaped cut is generally equidistantly spaced from the bar section and the adjacent side of the central section. 11. A blank as claimed in claim 1, wherein: (a) the blank is folded along the longitudinal centreline to form two generally identical side panels with the connecting tabs of each connecting tab section folded on themselves and secured to each other in a co-planar, laminated relationship; (b) the bottom wall sections are secured to each other at the connecting strips, the bottom wall sections being disposed between generally co-planar side panels; whereby a knocked-down fast food serving tray is produced having a flat and generally rectangular configuration. 12. A blank as claimed in claim 11, wherein the connecting tab sections and the connecting strips are each secured to their respective counterpart by an adhesive. 13. A blank as claimed in claim 11, further comprising a line of weakness generally parallel with the sides of said rectangular configuration and extending between free ends of the leg sections of the H-shaped cut. 14. A blank as claimed in claim 13, wherein each of said lines of weakness generally parallel with the sides of the rectangular configuration is generally equidistantly spaced from both said sides. 15. A serving tray for fast food or the like, comprising, in combination, (a) a pair of generally upright, outwardly convexly curved side walls connected with each other at connection tabs integral with the respective side walls at end sections thereof; (b) said side walls being further integral with a pair of transverse top walls, each top wall having a parabolic contour in plan, said top walls being disposed one at each end of the tray; (c) each top wall having a generally circular cutout formed centrally thereof, said generally circular cutouts being of the size adapted to removably receive a frustoconical container such as a plastic coffee cup; (d) said top walls having inside end edges defining two opposed ends of a generally rectangular central opening adapted to receive a rectangular container such as a hamburger or fish tray, the two remaining opposed sides of said central opening being formed by adjacent sections of the side walls; (e) a bottom wall formed of two bottom wall sections secured to each other along a longitudinal line, each bottom wall section being integral with the adjacent side wall at a line of weakness extending along a lowermost edge of the respective side wall. 16. A serving tray as claimed in claim 15, wherein the width of each of said connection tabs increases in downward direction. 17. A serving tray as claimed in claim 15, wherein the connecting tabs at each end of the tray are adhesively secured to each other. 18. A serving tray as claimed in claim 15, wherein the connecting tabs at each end of the tray are adhesively secured to each other by a pressure sensitive adhesive. 19. A tray as claimed in claim 15, wherein the joinder between each side wall and the top walls is formed by alternating a cut and scored sections forming an arcuate joinder line. 20. A serving tray as claimed in claim 15, wherein said bottom wall sections are hinged relative to each other along a line of weakness coincident with longitudinal axis in one of the bottom wall sections. 21. A serving tray as claimed in claim 20, wherein the other bottom wall section forms a free end reinforcement tab section resting on an inside surface of the said one of the bottom wall sections, to maintain the bottom wall sections in a generally co-planar relationship when the bottom wall is subjected to a load acting at the inside of said central opening. 22. A serving tray as claimed in claim 15, wherein each of said adjacent sections of the side walls forming the opposed sides of the central opening is formed by a first part co-extensive with the respective curved side, and by a second part folded on said first part at the interior of the opening about a line of fold forming a top edge of the opening at each side thereof.
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