D - Textiles – Paper – 06 – C
Patent
D - Textiles, Paper
06
C
D06C 15/04 (2006.01) D04H 1/70 (2006.01)
Patent
CA 2657608
A device for stretching a web formed of thermoplastic synthetic resin over its entire width. The device (2) for stretching a web (1) formed of thermoplastic synthetic resin comprises a plurality of first stretching members (L) arranged in the peripheral direction on the peripheral surface of a drum (6) rotating in a machine direction (M). A rotation element (7) rotating in the same direction of and in synchronization with the drum (6) is provided on the rotation shaft (8) of the drum (6). A plurality of second stretching members (U) respectively corresponding to the first stretching members (L) are provided on the rotation element (7). Portions, facing in the radial direction of the drum (6), of respectively corresponding first stretching member (L) and second stretching member (U) are formed by protrusions (31, 41) and recesses (32, 42) extending in parallel to the shaft (8) and alternately arranged in the peripheral direction of the drum (6) to form a complementary shape meshing detachably in the radial direction of the drum (6). At least one of the first stretching member (L) and the second stretching member (U) is formed to be movable in the radial direction of the drum (6).
Dispositif d'étirement de bande en résine synthétique thermoplastique sur toute sa largeur. Le dispositif (2) d'étirement de bande (1) considérée comprend plusieurs premiers éléments d'étirement (L) disposés selon la direction périphérique sur la surface périphérique d'un tambour (6) tournant dans un sens machine (M). Un élément de rotation (7) tournant dans la même direction que le tambour (6) et synchronisé avec lui se trouve sur l'arbre de rotation (8) du tambour (6). Plusieurs deuxièmes éléments d'étirement (U) correspondant respectivement aux premiers éléments (L) se trouvent sur l'élément de rotation (7). Des parties, face à la direction radiale du tambour (6), respectivement d'un premier élément (L) et d'un deuxième élément (U) correspondant, sont formées par des protubérances (31, 41) et des cavités (32, 42) qui s'étendent parallèlement à l'arbre (8) et alternent dans la direction périphérique du tambour (6) pour former un maillage de forme complémentaire, de façon détachable, dans la direction radiale du tambour (6). Au moins un des deux éléments (L) (U) est formé pour être mobile dans ladite direction radiale.
Akaki Kenichi
Matsumoto Yoshihiko
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
Uni-Charm Corporation
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