| 摘要 |
The device has a turnable axially moveable actuator shaft (11) extending through an aperture in a hob cover (14), and a seal element (16) for the aperture on top of the cover. The element has an associated sealing washer (100), which is connected non-turnable to the shaft. The washer is pressed against the sealing element by a spring (19), and the element has an associated ring-shaped cover (18) acting as abutment for the spring. Sealing element and/or cover are of plastic, and the sealing washer is of metal. Actuator shaft and sealing plate are of different materials. |
