| 摘要 |
An ADA-compliant pedestrian traffic control device including a hollow, one piece post having an open upper end, and at least one slot in the post below the top of the post. A cassette is mounted within the post at the level of the slot. The cassette contains a tape wound on a spool, the spool being spring-biased to rotate in a direction which winds the tape on to the spool. The tape is extendable from the cassette in a direction generally perpendicular to the vertical axis of the post, the tape extending through the slot in the post. The diameter of the cassette, along its entire axial length, is smaller than the internal diameter of the post, so that the cassette can be inserted into the open upper end of the post and moved to its location between the ends of the post. The cassette is furnished with means for maintaining tension in the retractor spring prior to and during insertion of the cassette into the post, the tension-maintaining means being positioned substantially within the confines of the outer dimension of the cassette, so as not to interfere with insertion of the cassette into the post. After the free end of the tape of the cassette is manipulated outwardly through the slot in the post, a pull is attached to the free end of the tape, the pull being too large to fit through the slotand hence preventing full retraction of the tape into he cassette.
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