ISO 3692-1976 Information processing Reels and cores for 25 4 mm (1 in) perforated paper tape for information interchange Dimensions《信息处理 信息交换用25 4mm(1 in)穿孔纸带的.pdf

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1、ex*, *E la valeur de lcart maximal au comparateur doit tre infrieure d 1,57 mm (0,062 in). Cest-dire que lcart entre le centre des circonfrences de diamtres B et M par rapport au centre de la circonfrence de diamtre A doit tre infrieur a 0,79 mm (0,031 in). 4 DIMENSIONS DU NOYAU 4.1 Gnralits Le noy

2、au doit sajuster sur le moyeu de la bobine dcrite dans le chapitre 3 et tre entran par ce moyeu. 1 IS0 3692-1976 (FI 4.2 Dimensions 4.2.2 Le noyau doit possder douze ou vingt cannelures galement espaces sur la circonfrence de la surface 4.2.1 Les dimensions doivent tre celles qui sont indiques intri

3、eure. dans la figure 2 et le tableau 2. Rayon exterieur Surfaces interieures FIGURE 1 - Bobine TABLEAU 1 - Dimensions de la bobine Dimension A B C D F G H J K L M” N millimtres + O 13 12.83 - (Voir 3.2.2) 19,1 min. 25.4 min. 1 ,go + 0.1 3 9.52 + :38 3.18 min. 2.36 26.42 + :O2 2.5 max. ou 215.9 t 1.6

4、 152.4 + 1.6 33.0 f t; inches 0,505 T :;: (Voir 3.2.2) 0,75 min. 1 min. 0,075 i 0,005 0,375 + t” 0,125 min. 0,093 1,040 + E040 0,l max. 6 + 0,062 ou 8.5 t 0,062 1.30 T i;: Des diametres plus importants peuvent etre admis apres accord particulier entre exp6diteur et destinataire. 2 IS0 3692-1976 (F)

5、FIGURE 2 - Noyau TABLEAU 2 - Dimensions du noyau Dimension P O* R S - pour 12 cannelures - pour 20 cannelures V W mil I i metres 59,OO max. 51,OO f o,io 0.20 max. 5.80 min. 6,20 max. 4.83 min. 5.08 max. 0.60 min. 0.80 max. 25.32 +_ 0.05 inches 2,323 max. 2,008 i 0,004 0,008 max. 0,228 min. 0.244 max

6、 0,190 min. 0,200 max. 0,024 min. 0,031 max. 0,997 t 0,002 * Des noyaux ayant un diametre sup6rieur au diametre maximal indique ci-dessus peuvent exister apres accord entre exp6diteur et destinataire, mais il nest pas souhaitable que la masse du noyau soit grandement augmentee lorsque le diamtre est augmente. * Lattention est attiree sur le fait que, dans des conditions extremes de temperature et dhumidite, une deformation du noyau peut intervenir en raison de la pression exercee par la bande en papier qui est enroul6e autour de ce noyau. 3

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