| 摘要 |
<p>The strip pin, non-rotatably connected to the outer rollers, contains a peripheral groove engaged by a securing pin which passes through a strip roller and prevents withdrawal of the strip pin, in a door hinge strip with three rollers. The securing pin (12) is located on the centre strip (5). An axial groove (13) runs from the peripheral groove (11) to the open end of the strip pin (6), and aligns with the securing pin only after the door strip has swung through a presecibed release angle, in the opening direction. The securing pin may be permanently joined to the centre strip roller.</p> |
