01-09-2022 дата публикации
Номер: US20220275673A1
Принадлежит:
The present invention relates to a device capable of guiding a stable rotational actuation between a first support bracket fixedly connected to a supporting frame side of a door frame and a second support bracket fixedly connected to the door side in a gear hinge unit constituting a rotating door, specifically, in a door hinge in which a gear hinge unit is provided between the first support bracket fixedly connected to the support frame side of the door frame and the second support bracket fixedly connected to the door side, by minimizing the compressive stress generated in the lower gear hinge unit under a neutral axis of the door and the tensile stress generated in the upper gear hinge unit above the neutral axis of the door by the rotational moment applied to the gear hinge unit due to the load of the door, it is possible not only to secure and maintain the correct opening/closing performance of the door, but also to minimize damage to parts caused by friction or friction noise in the door hinge. 15-. (canceled)6115011001250120013001000. An apparatus for guiding a stable rotating actuation of a gear hinge unit in a rotating door between a first support bracket fixedly connected to a supporting frame side of a door frame and the second support bracket fixedly connected to the door side in the gear hinge unit constituting the rotating door ,{'b': 1300', '1200', '1300', '1200', '1300', '1250', '1200, 'in order to minimize a tensile stress generated in an upper part of the gear hinge unit above a neutral axis a-a′ of the door and a compressive stress generated in a lower part of the gear hinge unit under the neutral axis a-a′ of the door by a rotational moment applied to the gear hinge unit through the second support bracket due to the load of the door , comprising{'b': 1510', '1100', '1512', '1100', '1250', '1250', '1200', '1510', '1510', '1250', '1250', '1200, 'i': a', 'a', 'b', 'a, 'a fixed first vertical support installed at a lower end of the supporting frame of ...
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