| 摘要 |
<p>The door hinge (1) has a door leaf side mounted pivoting portion (2) attached to a frame (4) about a pivot axis (3) using a hinge pin (5). The pivoting portion rotatable bearing surface and the support face complementary frame-side mating surface form a sliding pairing. The pivoting portion is lifted from a zero-angle position by a lifting device and placed in the threshold angle position, and the pivoting portion is lowered to the end angle position by the lowering device.</p> |
