| 摘要 |
<p>A connection (21) for connecting structural elements (1, 2) at an angle with selectively variable amplitude comprises at least one cylindrical pin (3), having two consecutive bodies (4, 5), of which a first body (4) has grooves on the outside and a second body (5) is smooth. Two arms (6, 7) have corresponding ends (6a, 7a) with holes (8, 9) through them, delimited by surfaces (10, 11) for surrounding the pin (3) and grooved like the first body (4). The arms (6, 7) and the pin (3) can move relative to one another along an axial direction (12) of the pin (3) and between two end positions. In a first end position, the first, grooved body (4) of the pin (3) and the surfaces of the arms (6, 7) are integral with one another with respect to the relative rotation about the axial direction (12) of the pin (3), whilst in the second end position at least one of the arms (6, 7) is at the second body (5) of the pin (3), so that it can rotate freely relative to the pin (3).</p> |
