Stackable egg-box, stack of egg-boxes and method for destacking said egg-box
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B65D-085/00
B65D-045/16
출원번호
UP-0320843
(2005-12-30)
등록번호
US-7686181
(2010-04-23)
발명자
/ 주소
St-Onge, Yves
출원인 / 주소
Interplast Packaging Inc.
대리인 / 주소
Ogilvy Penault LLP
인용정보
피인용 횟수 :
11인용 특허 :
8
초록▼
A stackable tray obtained by vacuum molding of a sheet of plastic material, the tray comprising, in open position: a) a top and a bottom; b) at least one receiving cavity opened upwardly; c) a hinge portion dividing the tray into a cover portion and a base portion; the receiving cavity being at leas
A stackable tray obtained by vacuum molding of a sheet of plastic material, the tray comprising, in open position: a) a top and a bottom; b) at least one receiving cavity opened upwardly; c) a hinge portion dividing the tray into a cover portion and a base portion; the receiving cavity being at least provided in the base portion; d) spacing members to keep, in a stack of trays, the top portion and the bottom portion of neighboring trays at distance from each other to thereby prevent interlocking therebetween; and e) at least one two-part locking members, each part being provided in the top of the sheet and positioned to engage one into the other when the cover portion is folded over the base portion along the hinge portion to bring the tray into a closed position defining a box. A stack of the trays and a method using the trays are also provided.
대표청구항▼
What is claimed is: 1. A stackable tray obtained by vacuum molding of a sheet of plastic material, said tray comprising, in open position: a) a top and a bottom; b) a plurality of receiving cavities opened upwardly; c) a hinge portion dividing said tray into a cover portion and a base portion; said
What is claimed is: 1. A stackable tray obtained by vacuum molding of a sheet of plastic material, said tray comprising, in open position: a) a top and a bottom; b) a plurality of receiving cavities opened upwardly; c) a hinge portion dividing said tray into a cover portion and a base portion; said receiving cavities being provided in said base portion, and said cover portion defining a substantially flat surface above the receiving cavities when the cover portion is folded over the base portion to close the tray in a closed position to define a box, the substantially flat portion spanning at least partially above all rows of the receiving cavities; d) spacing means to keep, in a stack of trays, the top portion and the bottom portion of neighboring trays at distance from each other to thereby prevent interlocking therebetween when the trays are in an opened position; and e) at least one two-part locking means, each part being provided in the top of the sheet and positioned to engage one part into the other part when the cover portion is folded over the base portion along the hinge portion to bring the tray into the closed position, the part in the cover portion forming a concavity in the substantially flat surface by projecting from the substantially flat surface toward the base portion when the tray is in the closed position and transversely oriented with respect to the hinge portion to sit on at least two other parts in the base portion such that the part in the cover portion spans over the at least two other parts in the base portion, the parts in the base portion each being positioned between some of the receiving cavities and being separated from one another by row of the receiving cavities. 2. A stackable tray according to claim 1, wherein said spacing means are stoppers having a portion thereof provided with a negative angle, an upper portion and a lower portion, said upper portion and lower portion of each stopper, when said tray is in open position, facing corresponding lower portion and upper portion of neighboring trays to keep a gap between said trays and prevent the trays from becoming interlocked. 3. A stackable tray according to claim 1, wherein said tray defines an egg-box obtained from a rectangular sheet of plastic and provided with a plurality of egg receiving cavities. 4. A stackable tray according to claim 3, wherein the cover portion and the base portion are each provided with a peripheral flange, said flanges being sized to fit one against the other when the cover portion is folded over the base portion along the hinge portion. 5. A stackable tray according to claim 4, wherein said two part locking means comprises at least one first two part locking means and at least one second two part locking means, said first two part locking means being provided in an intermediate portion of the cover portion and base portion; said second locking means being provided in a peripheral portion of the cover portion and base portion. 6. A stackable tray according to claim 4, wherein said peripheral flanges are further shaped to define at least said second two part locking means, each part of said second two part locking means being provided with at least one protuberance engaging a corresponding cavity substantially perpendicularly to the plane of the original sheet. 7. A stackable tray according to claim 6, wherein each egg receiving cavity is further provided with a set of at least three inwardly projecting ribs for supporting an egg, said ribs having a lower portion substantially straight in the bottom of the cavity and an upper portion curved to substantially fit with a corresponding contour of an egg. 8. A stackable tray according to claim 7, wherein each egg receiving cavity is further provided with a set of six inwardly projecting ribs for supporting an egg, said ribs having a lower portion substantially straight in the bottom of the cavity and an upper portion curved to substantially fit with a corresponding contour of an egg. 9. A stackable tray according to claim 8, wherein the base portion is further provided with additional spacing means comprising at least one first stopper provided between cavities of the base portion; said first stopper having negative angles so as in a stack of trays, its upper portion supports the lower portion of corresponding first stopper of a neighboring tray. 10. A stackable tray according to claim 6, wherein the cover portion and the base portion are further provided with a third two part locking means. 11. A stackable tray according to claim 10, wherein the third two part locking means has a first part provided in the base portion and a second part provided in the cover portion, said third two part locking means being positioned in portions of flanges that are opposite the hinge portion. 12. A stackable tray according to claim 3, wherein the cover portion is provided with at least one substantially flat surface for receiving thereon a printed label, a printed stamp or both. 13. A stackable tray according to claim 3, wherein means are provided to facilitate movement of the tray on an automated packaging/labeling apparatus. 14. A stackable tray according to claim 13, wherein said means to facilitate movement of the tray through an automated packaging/labeling apparatus comprise pair of small protuberances provided on the outer face of cavities near end of trays. 15. A stackable tray according to claim 5, wherein the first two part locking means is provided with positive angles in order not to define a snap fastener. 16. A stackable tray according to claim 5, wherein the first two part locking means is provided with negative angles in order to define a snap fastener and, when in open position in a stack of trays, a further spacing means. 17. A stackable according to claim 1, further comprising at least a pair of two-part locking means, with an arch between pairs in the part of the cover portion.
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이 특허에 인용된 특허 (8)
Krupa Calvin S. (750 Navajo Rd. Medina MN 55340) Knoss Robert (19081 Hopi St. Anoka MN 55303), Blueberry container.
Brown William R. (“The Birches”Lower Broad Oak Rd. ; West Hill Ottery St. Mary ; Devonshire GB2) Caddy Harold W. (61 Stafford Rd. Bridgwater ; Somerset GB2), Boxes or packs for packaging eggs, fruit or other articles.
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