The invention relates to a cardboard tray folded from an unfolded sheet of cardboard, which tray includes a bottom wall with a circumferential edge composed out of a number of straight edges; wall parts each arranged to a straight edge of the bottom wall; first flange parts at least arranged to opposite wall parts along the circumferential edge, which first flange parts are arranged to an edge of said wall part opposite of, and preferably parallel to, the respective straight edge of the bottom wall. The first flange parts include at least a first, a second and third elongate flange part section, which are connected parallel and along an elongate edge to each other. For each first flange part, the first elongate flange part section is arranged to a respective wall part, the second elongate flange part section is double folded against the first elongate flange part section, and the third elongate flange part section is connected parallel and along an elongate edge to the second elongate flange part section. For each first flange part the third elongate flange part section is adhered to the respective wall part on the inside of the cardboard tray and the second elongate flange part section is sloping downwards from the third elongate flange part section towards the first elongate flange part section.
B65D 5/24 - Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form with adjacent sides interconnected by gusset folds
B65D 5/20 - Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form
The invention relates to a cardboard tray comprising: - a bottom wall part; - arranged along the circumference of the bottom wall part, a number of upstanding side wall parts alternated with the same number of upstanding corner wall parts; - a circumferential flange composed out of abutting circumferential flange parts, each circumferential flange part being arranged, along a fold line, to the upper edge of one of the upstanding side wall parts; - strengthening flange parts arranged, along a fold line, to the upper edge of each upstanding corner wall part, wherein a strengthening flange part is adhered to both circumferential flange parts of the adjacent side wall parts; wherein the circumferential flange has a sealing zone, which extends along the circumferential flange and which spans at least part of the width of said circumferential flange, and wherein the strengthening flange parts at least partially overlap with the sealing zone, when viewed in a direction perpendicular to the sealing zone.
B65D 5/20 - Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form
B65D 77/20 - Container closures formed after filling by applying separate lids or covers
The invention relates to a cardboard tray folded from an unfolded sheet of cardboard, which tray comprises: - a bottom wall with a circumferential edge composed out of a number of straight edges; - wall parts each arranged to a straight edge of the bottom wall; - first flange parts at least arranged to opposite wall parts along the circumferential edge, which first flange parts are arranged to an edge of said wall part opposite of, and preferably parallel to, the respective straight edge of the bottom wall; wherein the first flange parts comprise at least a first, a second and third elongate flange part section, which are connected parallel and along an elongate edge to each other, wherein, for each first flange part, the first elongate flange part section is arranged to a respective wall part, the second elongate flange part section is double folded against the first elongate flange part section, and the third elongate flange part section is connected parallel and along an elongate edge to the second elongate flange part section wherein for each first flange part the third elongate flange part section is adhered to the respective wall part on the inside of the cardboard tray and the second elongate flange part section is sloping downwards from the third elongate flange part section towards the first elongate flange part section.
B65D 5/20 - Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form
B65D 5/24 - Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form with adjacent sides interconnected by gusset folds
A cardboard tray folded from an unfolded sheet of cardboard includes: a bottom wall with a circumferential edge formed out of an even number of straight edges; wall parts each arranged to a straight edge of the bottom wall; and first flange parts alternately arranged to subsequent wall parts along the circumferential edge. The first flange parts include at least a first, a second, and a third elongate flange part section, which are connected parallel and along an elongate edge to each other. The first elongate flange part section is arranged to the respective wall part, the third elongate flange part section is connected parallel and along an elongate edge to the second elongate flange part section, the third elongate flange part section is adhered to the outside of the respective wall part, and the second flange part section is double folded against the first flange part section.
B65D 5/20 - Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form
B65B 7/16 - Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
B65D 5/24 - Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form with adjacent sides interconnected by gusset folds
B65D 77/20 - Container closures formed after filling by applying separate lids or covers
The invention relates to a Cardboard tray folded from an unfolded sheet of cardboard, which tray comprises: - a bottom wall with a circumferential edge composed out of an even number of straight edges; - wall parts each arranged to a straight edge of the bottom wall; - first and second flange parts alternately arranged to subsequent wall parts along the circumferential edge of the wall parts, which flange parts are arranged along a folding line to an edge of said wall part opposite of, and preferably parallel to, the respective straight edge of the bottom wall; wherein the first flange parts comprise at least a first and a second elongate flange part section, which are connected parallel and along an elongate edge to each other; wherein the first elongate flange part section is arranged to the respective wall part and wherein the second flange part section is double folded against the first flange part section; wherein the first flange parts further comprise a third elongate flange part section, which third elongate flange part section is connected parallel and along an elongate edge to the second elongate flange part section and wherein the third elongate flange part section is adhered to the outside of the respective wall part; wherein each first flange part section has opposite first side edges, extending between the folding line and the elongate edge along which the second flange part section is connected to the first flange part section; wherein each second flange part has an elongate edge, opposite and substantially parallel to the folding line, and opposite second side edges, extending between the elongate edge and the folding line; wherein the first flange part sections and the second flange parts form a circumferential flange; wherein at the transition from a first flange part section to a second flange part, along the circumferential flange, the respective first side edge neighboring the respective second side edge is askew with the folding line of the second flange part and / or said second side edge is askew with the folding line of the first flange part section.
B65D 5/20 - Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form
B65D 5/24 - Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form with adjacent sides interconnected by gusset folds
B65D 77/20 - Container closures formed after filling by applying separate lids or covers
Cardboard tray folded from an unfolded sheet (1) of cardboard, comprising: a bottom wall (2) with a circumferential edge composed out of an even number of straight edges; wall parts (4) each arranged to a straight edge (3) of the bottom wall (2); first flange parts (6) alternately arranged to subsequent wall parts along the circumferential edge, which flange parts (6) are arranged to an edge of said wall part opposite of, and preferably parallel to, the respective straight edge of the bottom wall (2); wherein the first flange parts (6) comprise at least a first (8), a second (9), and a third (10) elongate flange part section, which are connected parallel and along an elongate edge to each other, wherein the first elongate flange part section (8) is arranged to the respective wall part (4).
A47B 43/02 - Cabinets, racks or shelf units, characterised by features enabling folding of the cabinet or the like made of cardboard or the like
B65D 77/20 - Container closures formed after filling by applying separate lids or covers
B65D 5/20 - Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form
B65D 5/24 - Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form with adjacent sides interconnected by gusset folds
B65D 5/20 - Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form
B65D 77/20 - Container closures formed after filling by applying separate lids or covers
9.
CARDBOARD TRAY WITH IMPROVED SEAL FLANGES, AND RELATED METHOD
Cardboard tray folded from an unfolded sheet (1) of cardboard, comprising: a bottom wall (2) with a circumferential edge composed out of an even number of straight edges; wall parts (4) each arranged to a straight edge (3) of the bottom wall (2); first flange parts (6) alternately arranged to subsequent wall parts along the circumferential edge, which flange parts (6) are arranged to an edge of said wall part opposite of, and preferably parallel to, the respective straight edge of the bottom wall (2); wherein the first flange parts (6) comprise at least a first (8), a second (9), and a third (10) elongate flange part section, which are connected parallel and along an elongate edge to each other, wherein the first elongate flange part section (8) is arranged to the respective wall part (4).
A47B 43/02 - Cabinets, racks or shelf units, characterised by features enabling folding of the cabinet or the like made of cardboard or the like
B65D 5/20 - Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form
B65D 5/24 - Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form with adjacent sides interconnected by gusset folds
B65D 77/20 - Container closures formed after filling by applying separate lids or covers
