| 摘要 |
A motor driven revolving door, also called a roundabout entrance, providing an air lock and comprising a revolving central body (5) with door leaves, each of which may be swung in either direction from a mainly radial rest position around a vertical axis at some distance from the revolving axis of the central body (5). The central body (5) is sustained by one bearing only placed at the bottom just above or in floor level, and the bearing is designed to absorb both radial and axial forces as well as tilting moments, aiming at tilting the revolving axis away from its vertical position. In comparison with other roundabout entrances it is now possible to obtain freelier transparent designs, and simpler sealing between the revolving central body (5) and the floor and ceiling respectively, the ceiling construction can be simplified and therefore less costly, also the required work on the installation site is simplified and less expensive. |
