Patent ID: 9351621
Filing Date: 2016-05-31
CPC Classification: A47L

Claim Text:
1. A vacuum cleaner suction pipe, comprising: at least one inner pipe having a toothed strip, at least one outer pipe, and at least one locking device attached to the outer pipe, the locking device being manually movable by user actuation from a locking position into a release position, the locking device having a toothed rack, and in the locking position, the rack being kept engaged with the toothed strip of the inner pipe, as a result of which the inner pipe is positionally fixed relative to the outer pipe, wherein the locking device is movable into the release position by displacement relative to the outer pipe in an axial direction of the outer pipe, and wherein the rack, in the release position, is pressable out of engagement with the toothed strip by a relative force between the outer pipe and inner pipe, independent of an additional spring force effect stabilizing a set position, by flanks of the teeth of the toothed strip pushing flanks of the teeth of the rack upward, enabling the inner pipe to be displaced relative to the outer pipe.