Gear shaft for door drive, the worm gearing and the gate, as well as manufacturing process for manufacturing a transmission shaft

摘要

The invention relates to a transmission shaft (20) of an at least a worm shaft (23) for a drive worm gear, comprising a gate. The gate comprises a device for balancing the weight force of the gate. The drive is in particular for a weight balanced stroke - or a sectional door. The gear shaft (20) comprises a connecting region (27) for connection to a to - or output component of the transmission and / or of the drive. The gear shaft (20) comprises a a toothing (22) having a toothed area (21), the teeth (22) for engaging the screw shaft (23) of the transmission is suitable. The gear shaft (20) and the toothed area (21) are integrally formed as a cast part.