| 摘要 |
The present invention relates to an opener apparatus of swinging door which includes a workbody (2) fitted on the lower side of the door with running wheel (1), characterised by : (a) the workbody (2) has a transmission mechanism which includes a worm wheel and shaft mechanism (3) driving the running wheel (1) ; (b) the running wheel body has a gear (4) on it : (c) on a ground station where the door is closed has a rack (6) to mesh the gear (4). This apparatus can self-lock firmly at the station where door is closed. |
