| 摘要 |
<p>The machine has a lifting height adjusting device (30) for providing transport lifting of a sewing foot (10) i.e. downholder, where the device is separately formed for a ventilation device (13). The ventilation device and the adjusting device comprise ventilation and lifting gear shafts (14, 29) for providing a ventilation height and a lifting height. A drive (22) i.e. step motor, is provided for the ventilation device and the adjusting device. Ventilation shaft and lifting height adjusting device cam disks (20, 24) are arranged on a motor shaft (21) of the drive.</p> |
