FIELD: mechanical engineering.
SUBSTANCE: elastic element in one version is equipped with a torsion spring, including a spiral part wound in inside direction without a coverage area along the vertical line, and a lever element joined with its inner end. At the same time the lever element changes the angle of winding of the spiral part depending on the angle of its turning. The lever element is equipped with a connecting part for a movable joint with an associated member of the connecting part. In the other version the elastic element is equipped with the first torsion spring, comprising the first spiral part, the second torsion spring, arranged near the first torsion spring, comprising the second spiral part, and the connecting element. At the same time spiral parts are wound to produce a spiral shape without a coverage section along the vertical line. The first tab passes from the external part of the first spiral part and is equipped with a connecting part for a movable joint with an associated member of the connecting part. The second tab passes from the external section of the second spiral part. The connecting element joins the internal end of the first spiral part and one of two ends of the second torsion spring with each other. In the other version the elastic element is equipped with a torsion spring, the first and the second flat elements. At the same time the torsion spring has the spiral part and the tab passing from the spiral part. The second flat element faces the first flat element and is connected with it. The spiral part is between the first and the second flat elements so that movement of the spiral part is ensured in the gap between the first and the second flat elements. At the same time the assembly of the first and second flat elements has at least one open hole on its side so that the tab protrudes outside and turns.
EFFECT: increased reliability and strength of the sliding mechanism for opening, closing of a portable device, reduced thickness of the portable device.
19 cl, 43 dwg
