Safety arrangement and method for a floor surfacing machine
US10842337B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2017 |
| Grant date | Nov 24, 2020 |
| Priority date | — |
| Expiry date | Oct 12, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24B23/02
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
The present invention relates to a safety arrangement for a floor surfacing machine (1) comprising at least one drive wheel (3, 4), a motor arrangement (5, 6) for propelling said drive wheel (3, 4), a surfacing apparatus (13) and a control unit (10, 11a) for controlling the operation of said motor arrangement (5, 6) and said surfacing apparatus (13). The arrangement comprises at least one detecting unit (55; 56, 57) connected to said control unit (10,11a) and adapted for determining a torque required for operating each drive wheel (3, 4) wherein said control unit (10,11a) is configured for preventing operation of said surfacing apparatus (13) if said required torque is lower than a predetermined limit value. The invention also relates to a method for obtaining safety in a floor surfacing machine (1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.