| 摘要 |
<p>The invention concerns a hinge between a bone (3) and crown (7) of sunshades having a diameter larger than 2.5 meters. For this purpose is used an attachment that is fastened to the bone. The notches (8) in this attachment cooperate with cams (9) of the crown (7) which form together a hinge. In the crown are notches which bear cams. The cams are on both sides flat. The pivoting parts (10) are on one side connected with the bone and on the other side foreseen with notches which cooperate with the cams of the crown. The cams on the crown and the notches in the pivoting parts form a detachable hinge. The pivoting parts have a hole (12) for the bone that reaches further than the center of the pivoting point. The arrangement is very suitable for metal or plastic die-cast.</p> |
