| 摘要 |
FIELD: medicine. ^ SUBSTANCE: invention relates to biaxial hinge for supports for legs of obstetric beds and gynecological examination chairs. Case (2) of hinge is installed with possibility of rotation onto central peg (1), on which also installed is wheel (3) with screw (4) and internal teeth (5), and in hinge case (2) in guide movably installed is slider (7) into which inserted is detent pin (6), and on hinge case (2) with possibility of rotation installed is hinge ring (9) which is pressed with lever (10) cam (11) by means of casing (12), disc springs (13) and radial teeth (14) to hinge case (2) and ring is connected by central screw (15) with slider (7), and between slider (7) and case (2) inserted is internal expanding spring (16), and between case (2) and ring (9) inserted is external expanding spring (17), and hinge case (2) is covered with cap (18). ^ EFFECT: providing possibility of fast setting position of support for legs. ^ 1 dwg |
