Structural unit with a holding device and a has an opening with a cylindrical section which can be inserted in the opening of the electrical small machine

摘要

The machine can be inserted into the holder only by one of its ends, owing to the increased dimensions of its other end, and the power supply cable is attached to the machine at a distance from its end. When the m achine (13) is inserted in the holder, the cable (17) passes between the machine (13) and the wall of the hole (12), and emerges from it at its side facing the rear end of the machine (16). The machine may be a motor driving a ventilation fan (15), which fits onto a splined extension of the m otor shaft (14) and there is a housing or framework (21) surrounding the fan.