| 摘要 |
A collapsible barrier formed of inflexible panels joined to living hinges at each end thereof, each living hinge being separated from the hinge of the adjacent panel by a rib, so that each hinge is bent at the the "open" position not more than 90 DEG from the "closed" position or vice versa. The hinge is given a memory by extruding it from plastic along with the panels, while in a position in which the panels are angled 45 DEG , approximately, from their closed position. The panels may be either pivoted about pins located at their midpoints or about pins spacing every other pair of adjacent panels. These pins are constrained to move in a linear track.
|
