| 摘要 |
The paper clips of the present invention are more gradually curved to have a substantial lateral extent, so that they will hold a much thicker stack of papers without deformation or buckling, as compared with the standard narrow sharply curved paper clips. More specifically, when a predetermined length of wire is employed, the clips have a ratio of the predetermined length to the width, and to the height of the clip, of between about 4 and 6. In addition, where one end of the wire is arranged to engage a stack of papers on one side and the other end of the wire is arranged to engage the stack of papers on the other side, at a point between the two ends there is a gradually curved portion corresponding generally to one-half the circumference of a circle having a diameter in the order of the transverse dimension of the clip. In one embodiment the clip has an overall generally heart-shaped configuration; and in another embodiment one end of the clip is straight and the other is formed into a relatively tight loop.
|
