Adjustable suspension for high speed pad driver
US5127124A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 11, 1991 |
| Grant date | Jul 7, 1992 |
| Priority date | — |
| Expiry date | Mar 11, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L11/162
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
Apparatus for adjusting the height above the floor of a plate to which is attached a pad in a rotary floor machine to accommodate pads having a range of thicknesses includes a yoke disposed about the generally vertical support shaft of a caster positioned within a centrally-located aperture in the pad in contact with the floor. The yoke is also disposed about and supports a rotational drive arrangement coupled to the plate and includes a ring bearing to facilitate rotational displacement of the drive arrangement within the yoke. One end of the yoke is pivotally coupled to the machine's housing, while a manually adjustable coupler attaches a second, opposed end of the yoke to the housing to permit raising and lowering of the yoke in a pivoting manner. Disposed within the yoke and engaging the rotational drive arrangement is a gimbal-like suspension arrangement which maintains the drive arrangement vertical (perpendicular to the floor) and the pad plate horizontal as the yoke is pivotally raised and lowered to accommodate pads having a range of thicknesses. By maintaining the pad plate horizontal regardless of its height above the floor, uniform contact with the floor over the entire…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.