| 摘要 |
The cardboard sheet for polygonal package with an internal mandrel, comprising a central part P composed of an even number of rectangular panels P1..., Pn delimited by mutually parallel grooves forming the edges of a polygonal cylinder and by at least one groove T, T' transverse to the first ones defining a bottom of the said cylinder, a succession of flaps R1, R2 ... Rn prolonging the panel along the bottom groove so as to constitute, after assembly, a bottom of the package, is characterised in that the said flaps are provided alternately with a tab V1, V3 ... Vn articulated about a folding line parallel with the bottom groove T, T', and with cutouts E' or notches E with which the said tabs V1, V3... Vn are capable of cooperating both to secure the flaps to each other and to participate in the centring of the said mandrel. <IMAGE>
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