| 摘要 |
The four point-guide scissors (30) have scissor arms (35,36) with a pivot bearing (31,32,33,34), through which the scissor arms are pivotally stored on a frame (2) and a wing (3). The pivot bearings are pivotally supported around a bearing shaft (11,21). One of the pivot bearings with the scissor arm is formed as a fixed pivot bearing, while another pivot bearing is formed as a displaceable pivot bearing. The displaceable pivot bearing is adjustably limited in the displacement direction. A locking unit (31a,32a) for fixing the fixed pivot bearing on the bearing shaft. Independent claims are included for the following: (1) a bearing device for parallel -hinged windows or -doors with frame and wing; and (2) a guidance system for guiding the construction of parallel -hinged windows or -doors from frame and wing. |
