Patent ID: 7438112
Filing Date: 2008-10-21
Classification: E01F,E06B

Abstract:
1. A roll-up barrier comprising: a base having a top surface; an outer edge; and a connecting tube formed on and protruding up from the top surface of the base; a drive shaft having; a bottom end mounted securely in the connecting tube of the base; and a top end; an end cap mounted securely at the top end of the drive shaft and having a bottom surface; an outer edge; a connecting tube formed coaxially on and protruding down from the bottom surface of the end cap and securely holding the top end of the drive shaft; and an arresting mechanism mounted in the end cap and having a rolling assembly mounted rotatably between the base and the end cap and having a rolling tube mounted rotatably around the drive shaft and having a rolling bushing mounted securely at the top end of the rolling tube and having a resilient element mounted in the rolling tube to provide a rotating reposition force to roll the rolling tube after the rolling tube is rotated; and a flexible barrier attached to and mounted retractably around the rolling tube and having a proximal edge attached to the rolling tube; a distal edge; a bottom edge; and a top edge.