Suction nozzle with flexible brush, for industrial vacuum cleaner, uses conical bristle skirt with inner end attached to sliding ring which adjusts position of skirt over flared end of suction tube

摘要

The nozzle terminates in a brush with bristles (28) grouped to form a hollow cone (22) extending the nozzle. The inner end of the brush is attached to a ring (18) which slides along the suction tube (12). The end of the tube is inside the brush, and is flared outward (14), so that sliding the ring along the tube alters the angle of the cone, and thus the opening (Dx) at the end of the brush.