FIELD: instrument making.
SUBSTANCE: vacuum cleaning device comprises unit (1) for aerodynamically affecting dust particles and/or a surface to be cleaned. Unit (1) comprises housing (30) having housing wall (31) encompassing two internal sections (20, 22), and movable surface (11) arranged at an interface of two sections (20, 22), wherein portion (32) of housing wall (31) delimiting first section (20) is provided with at least one opening (21), and wherein means for actuating movable surface (11) are arranged in second section (22).
EFFECT: portion (33) of housing wall (31) delimiting second section (22) is adapted to at least hinder exchange of air between an inside of this section (22) and an outside of housing (30) at location of this section (22), in order to at least hinder a migration of dust to second section (22).
12 cl, 8 dwg
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RU2433778C1 |
