| 摘要 |
In a method of providing a reflective surface on a portable traffic bollard of conical or cylindrical form, a length of adhesive-backed reflective tape (14) is wound onto the bollard (2) in helical or annular fashion, the tape being sufficiently flexible (as defined in the specification) to bend in its own plane without wrinkling. One form of apparatus for applying the tape comprises a hub (32) bearing a roll of tape (14) and a contact roll (40) for applying it to the bollard surface. The tape (14) is normally maintained under tension as it is applied by a brake shoe (25). The bollard is mounted on a support for rotation as the tape (14) is applied and provision is also made for relative axial movement of the bollard and hub as necessary to ensure creation of the desired design. As an alternative to the tape- winding technique a reflective sheet blank is provided on its reverse surface with a pressure sensitive adhesive defining a grid pattern. Once roughly located on the bollard, the grid pattern permits the blank to be shifted before pressure applied on the grid areas finally secures the sheet in place. <IMAGE> |
