| 摘要 |
<p>In a boxed mosquito net unit cuttable to length, comprising essentially a box (11) internally containing a support roller (12) for a net (13), the net (13) being extractable from a longitudinal aperture provided in the box (11) and having fixed thereto a gripper bar (14) which enables the net to be pulled, there is provided a clamping band (15) which is of profiled annular form, is constructed of a plastics material, has a smooth inner surface and comprises in its outer surface a perimetral groove (18) perpendicular to an axis (X) of the band, to divide the band into two parts (19, 20) connected together by a thinned wall (21) and clamp the elements of the box and gripper bar together during cutting. The groove serves advantageously to guide the cutting blade in a direction perfectly perpendicular to the axis of the band and hence of all the elements of the entire mosquito net unit. <IMAGE></p> |
