Base station for a floor processing device, drive wheel for a floor processing device as well as system comprised of a base station and a floor processing device

Patent metadata

Field	Value
Publication number	US-11789451-B2
Application number	US-202016951247-A
Country	US
Kind code	B2
Filing date	Nov 18, 2020
Priority date	Nov 22, 2019
Publication date	Oct 17, 2023
Grant date	Oct 17, 2023

Abstract

A base station performs a service treatment on a floor processing device, wherein the base station has a basic housing with an interface for docking the floor processing device. In order to support docking in a purely mechanical way, the base station has a guide extension arm allocated to the interface and facing away from the basic housing with a predominant longitudinal extension for exclusively mechanically guiding a docking movement of the floor processing device to the interface, wherein an outer contour of the guide extension arm as observed in a vertical top view tapers proceeding from the basic housing up to a free end area of the guide extension arm facing away from the basic housing.

First claim

What is claimed is:

1. A system comprising an automatically moving floor processing device with at least two drive wheels, and a base station configured for performing a service treatment on the floor processing device,
wherein the base station comprises:
a basic housing with an interface configured for docking the floor processing device, and
a guide extension arm allocated to the interface and facing away from the basic housing with a longitudinal extension configured for exclusively mechanically guiding a docking movement of the floor processing device to the interface,
wherein an outer contour of the guide extension arm as observed in a vertical top view tapers proceeding from the basic housing up to a free end area of the guide extension arm facing away from the basic housing,

wherein at least one of the drive wheels comprises:
a wheel body having a drive shaft,
a working tread formed on the wheel body in a circumferential direction, and
a cylindrical run-on element concentrically protruding on a wheel body end face, with a run-on tread formed on the run-on element in the circumferential direction,
wherein a run-on tread diameter of the run-on tread is less than a working tread diameter of the working tread, and
wherein the run-on element faces the other drive wheel.

2. The system according to claim 1 , further comprising a floor plate on which the guide extension arm is formed or arranged and which can be traversed by the floor processing device.

3. The system according to claim 1 , wherein the end area of the guide extension arm has an outwardly facing run-on bevel relative to a horizontal view.

4. The system according to claim 1 , wherein the run-on tread diameter measures approximately 70% to 90% of the working tread diameter.

5. The system according to claim 1 , wherein the run-on tread of the run-on element has a run-on tread width of 2 mm to 10 mm in the axial direction.

6. The system according to claim 1 , wherein edge areas of the wheel body end faces of two opposing drive wheels bordering the working treads have an axial distance to each other that is greater than a maximum outer contour width of the outer contour of the guide extension arm oriented orthogonal to the longitudinal extension, so that the guide extension arm can be received between the drive wheels.

7. The system according to claim 1 , wherein the longitudinal extension of the guide extension arm is at least as large as an axial distance between two concentrically arranged drive wheels of the floor processing device.

8. The system according to claim 1 , wherein a vertical height of the guide extension arm is larger than half a difference in diameter between the run-on tread diameter and the working tread diameter, so that the drive wheel of the floor processing device is no longer supported on the working tread when the run-on tread rolls onto the guide extension arm.

Assignees

• Vorwerk Co Interholding

Inventors

• Windorfer Harald

Classifications

• G05D1/0225 Primary

  involving docking at a fixed facility, e.g. base station or loading bay (parking aids B62D15/027) · CPC title

• B60L53/16

  Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles · CPC title

• B60L53/36

  by positioning the vehicle · CPC title

• G05D2201/0203

  Physics · mapped topic

• A47L11/00 Primary

  Machines for cleaning floors, carpets, furniture, walls, or wall coverings · CPC title