| 摘要 |
The back component (3) joining the two binders (1,1') is in the form of a pliant strip, one of which has an elastic, string-shaped connector (4) extending between at least two connecting points (5,6,7,8) to the binder (1). At least one of these connecting points (6) is located alongside the binder edge parallel to the rear edge (2), and nearer one of the binder corners (10) than any of the others. Another of the connecting points (5) is located adjacent to the edge (11) extending between the rear edge and the opposing edge parallel to it. - The string-form connector extends on the outside of the binder, and is of such length and elasticity that it can be stretched outwards and passed over the adjacent corner (10) of the binder, and over the corresp. corner (10') of the adjacent other binder (1') to a rest position on the rear of this latter binder. The connector elastically connects the binders, pressing them together by the effect of elasticity. At least one of the binders has 50 per cent of its surface transparent, and is of rigid sheet-form material, permitting reading through it of an inscription or similar attached to its inside. |
