Floor scrubbing machine having impact energy absorption
US5483718A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 3, 1994 |
| Grant date | Jan 16, 1996 |
| Priority date | — |
| Expiry date | Oct 3, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L11/4069
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A floor scrubbing machine has a chassis mounted on front and rear wheels and a scrub head attached to the front of the chassis by a system of articulated links. Structure is provided for absorbing the kinetic energy of the moving machine in the event that the scrub head strikes a fixed object. On impact the geometry of the linkage system causes the front wheels to be lifted off the floor, thereby quickly lifting considerable weight. Also, a pair of heavy springs stretch, and parts of the chassis deform elastically. By this structure the kinetic energy is absorbed within the machine. No heavy protective shrouds are needed, and a simple flange along the front edge of the scrub head housing provides adequate stiffness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.