| 摘要 |
<p>Drive means comprising an electrical motor, a power supply unit and a transmission mechanism, said drive means being moveable between a first position and a second position and adjustable in these positions and in any position between these positions. The drive means (9) comprises at least one rail or plate part (25) extending at least partially in the longitudinal direction of the drive means, said rail or plate part being positioned near a first outer side of the drive means (9). Furthermore, an encapsulating part (30) for at least part of the drive means (9) is positioned with at least part of its surface near a second outer side of the drive means, and said rail or plate part (25) and said encapsulating part (30) are connected to each other in a heat-conducting connection. The invention also concerns a method of manual operation of a drive means and in particular a drive means for a screening device for a building opening, a door, a window or similar elements, said drive means or at least part of this being manually moveable from one operational mode to another mode, after which the drive means is manually moved back to the desired position of the drive means. In addition, the invention concerns a drive means and a screening device for applying this method.</p> |
