| 摘要 |
<p>Device for operating a sliding door comprising an endless chain guided over at least two wheels in a plane parallel to the plane of the door, said chain being provided with at least one catch which can co-operate with at least one abutment connected to the door for opening and/or closing said door. The guiding wheels of the chain being positioned such that the direction of movement of the catch has a relatively large vertical component at the beginning of the movement of the door.</p> |
