| 摘要 |
<p>The device has a support and folding linkage part (2) set for an arm of blind. An adjusting and fixing unit adjusts and fixes a position of the part with respect to a fixed part (3). The fixed part has a hemispherical recess (4), and the support and folding linkage part has a hemispherical projection (5) complementary to the recess, so that the parts define a ball joint together. The recess and the projection have a hole (6) and another hole, and an assembly of screw (8) and clamping nut (9) between the projection and the recess include a clearance between one of the holes and the screw.</p> |
