Floor cleaning machine

US9999332B2 · kind B2 · utility

Assignee

• Alfred Kärcher GmbH & Co. KG · DE

Inventors

• Alexander Braendle · Gundelsheim, DE
• Manuel Schulze · Kornwestheim, DE
• Fabian Moser · Schorndorf, DE
• Moritz Irion · Cologne, DE
• Swen Sorgenfrei · Schwaikheim, DE

Key dates

• Filing date: Jun 10, 2016
• Grant date: Jun 19, 2018
• Expiry date: Aug 19, 2036

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A47L11/4083
• WIPO field: Furniture, games
• WIPO sector: Other fields

Abstract

A floor cleaning machine is provided, in particular a hand-guided and/or hand-held floor cleaning machine, including a support device, at least one cleaning roller arranged on the support device, capable of being driven in rotation and provided with a cleaning substrate, a fan device for creating a suction flow, and a suction channel device for the suction flow which provides a suction channel operatively connected for fluid communication between the fan device and the at least one cleaning roller, wherein the suction channel has a mouth towards the at least one cleaning roller that includes a first and a spaced second mouth wall having a mouth opening therebetween, wherein the first mouth wall is positioned above the second mouth wall relative to the direction of gravity, wherein the first and/or second mouth wall are/is in contact against or protrude(s) into the cleaning substrate of the at least one cleaning roller.