Suction nozzle sliding base plate of a vacuum cleaner

Abstract

The soleplate (100) has a suction channel (10) that is defined at a front by a front scrapping edge (11) and at a rear by a rear scrapping edge (12). A regulating unit regulates flow-pressure torque of air sucked in the suction channel, where the regulating unit has a sealing cover (20) comprised in a scrapping plane. An advanced effort limiting unit has a front attack chamfer (25) arranged at a front of the sealing cover forming an angle (beta) with the scrapping plane, where the angle is lower than 20 degrees.

Description

technical field

[0001] The present invention generally relates to a vacuum cleaner nozzle having a base with improved dust collection efficiency. Background technique

[0002] Vacuum cleaner nozzles are known in the prior art for the purpose of providing a dust extraction system whose parameters are controlled. Document GB1458899 presents a vacuum cleaner nozzle whose base has a suction channel delimited at the front and at the rear by flexible sheets. These sheets can be deformed under the effect of the vertical bearing force on the base generated by the reduced pressure in the channel. When deformed, these lamellae modify the effective surface of the channel and adjust the bearing force to allow scraping of the textile floor with a constant force. Scratching refers to the mechanical action of the base on the fur of the textile floor that is to be cleaned.

[0003] The systems described above have the disadvantage, in particular, that they do not work efficiently enough....

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