A method and device for producing a rigid container, having two end walls and a lateral wall, from a flat blank having two flat first portions, each of which has a relative panel defining a relative end wall of the container, and a drawn rim integral with the panel, extending along at least one port
A method and device for producing a rigid container, having two end walls and a lateral wall, from a flat blank having two flat first portions, each of which has a relative panel defining a relative end wall of the container, and a drawn rim integral with the panel, extending along at least one portion of an outer edge of the panel, and square with respect to the panel; and three flat second portions alternating with the two panels; each panel being folded squarely with respect to the flat second portions adjacent to it; the second portions being wrapped about and onto the rims to form the lateral wall; and each panel being stiffened by means of an external stiffening member, at least when forming the lateral wall.
대표청구항▼
The invention claimed is: 1. A method of producing a rigid container for a product, the container (2) comprising two end walls (5, 6) and a lateral wall (7), and being formed from a flat blank (3) comprising two first portions (16, 24; 17, 24) , each of which comprises a respective panel (16; 17) d
The invention claimed is: 1. A method of producing a rigid container for a product, the container (2) comprising two end walls (5, 6) and a lateral wall (7), and being formed from a flat blank (3) comprising two first portions (16, 24; 17, 24) , each of which comprises a respective panel (16; 17) defining a respective said end wall (5; 6) of the container (2), and a drawn rim (24) integral with the panel (16 ; 17), extending along at least one portion (22) of an outer edge of the panel (16; 17), and square with respect to the panel (16; 17); and three second portions (12, 13, 14) alternating with said two panels (16, 17), one (13) of said second portions (12, 13, 14) being an intermediate second portion with respect to said two panels (16, 17); the method comprising the steps of folding each said panel (16; 17) squarely with respect to the second portions (12, 13; 13, 14) adjacent to it, and wrapping said second portions (12, 13, 14) about and onto said rims (24) to form said lateral wall (7); and being characterized by comprising the further step of stiffening each said panel (16; 17) at least during said step of wrapping to form said lateral wall (7). 2. A method as claimed in claim 1, wherein said stiffening step is a step of clamping each said panel (16; 17) by suction onto a respective supporting surface (38). 3. A method as claimed in claim 1, wherein said step of folding said panels (16, 17) squarely comprises the substeps of clamping said intermediate second portion (13) onto a first surface (29); placing each said panel (16; 17) on a respective second surface (38) of a respective folding member (33; 34) set to a rest position in which the respective said second surface (38) is coplanar with said first surface ( 29); and moving each said folding member (33; 34) from said rest position to a work position in which said second surfaces ( 38) are square with respect to said first surface (29); each said second surface (38) defining said supporting surface for a respective said panel (16, 17). 4. A method as claimed in claim 3, wherein each said folding member (33; 34) moves between said rest position and said work position by rotating about a respective axis (44; 45) coplanar with said first surface (29). 5. A method as claimed in claim 4, wherein each said panel (16; 17) is also clamped by suction onto the respective second surface (38) during said substep of moving the relative said folding member (33; 34) from said rest position to said work position. 6. A method as claimed in claim 5, wherein said intermediate second portion (13) is clamped onto said first surface (29) by suction. 7. A method as claimed in claim 3, wherein said intermediate second portion (13) is clamped onto said first surface (29) by feeding said product (62) towards said first surface (29) and onto the intermediate second portion (13). 8. A method as claimed in claim 1, wherein each said panel (16; 17) is substantially oval. 9. A method as claimed in claim 1, wherein said product ( 62) comprises a group (63) of cigarettes.
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이 특허에 인용된 특허 (13)
Pham Xuan M. (Richmond VA), Apparatus and method for maintaining closed hinged lid boxes.
Grossmann, Jurgen; Bley, Frank; Glosmann, Josef; Wachter, Michael Kleine, Method of and apparatus for accumulating and joining blanks of packets for block-shaped groups of articles.
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