Squeegee support assembly for automatic floor cleaning machines
US4339841A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 12, 1980 |
| Grant date | Jul 20, 1982 |
| Priority date | — |
| Expiry date | Nov 12, 2000 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L11/4044
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A squeegee support assembly for automatic floor cleaning machines of the type having a housing, drive wheels, spaced holders for floor cleaning members mounted for powered rotation about a vertically disposed axis and a substantially crescent-shaped vacuum housing and squeegee blade carrying assembly mounted to the housing for articulated movement about a vertical axis which is located at the midpoint between a diametral line passing through the axis of the holding members. The support assembly including an arm support member pivotally mounted to the housing for pivotal movement about a vertical axis, an upper arm having one end pivotally connected to the arm support member for rotation about a horizontal axis, a lower arm having one end pivotally connected to the arm support member below the upper arm end for rotation about a horizontal axis, a connecting structure at the other ends of the arms for pivotally connecting the same to the squeegee assembly and constraining the same to vertical movement with respect to the arm support member, the arms including adjusting means for adjusting the vertical pressure forces of the squeegee assembly against the floor when the blades thereof …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.