초록 ▼

Floor care apparatus is disclosed wherein a powered brush assembly having a multiplicity of rotary brushes is suspended within the apparatus such that the brush assembly floats freely upon the surface being cleaned without supporting any of the machine's weight. The rotary brushes are generally conf

Floor care apparatus is disclosed wherein a powered brush assembly having a multiplicity of rotary brushes is suspended within the apparatus such that the brush assembly floats freely upon the surface being cleaned without supporting any of the machine's weight. The rotary brushes are generally configured as spur gears and function in a gear train wherein one brush drives all other gear brushes in the system. Axially projecting brush bristles are embedded in each gear tooth such that there is no unbrushed area between adjacent brushes in the brush line. The portion of the gear tooth wherein the bristles are embedded includes a recessed profile to allow for circumferential expansion of the tooth, upon insertion of the brush bristles, thereby preventing gear tooth interference. The brush assembly is particularly suitable for hot water carpet extractors of the upright design.

대표청구항 ▼

[ We claim:] [1.] A carpet extractor having a source of cleaning solution for selective depositing upon a carpet and a vacuum source for extracting the cleaning solution with entrained dirt from the carpet and further comprising;a main body having a pair of vertical guide slots;support means for sup

[ We claim:] [1.] A carpet extractor having a source of cleaning solution for selective depositing upon a carpet and a vacuum source for extracting the cleaning solution with entrained dirt from the carpet and further comprising;a main body having a pair of vertical guide slots;support means for supporting said main body above the floor being cleaned;a brush support beam having a pair of rails extending therefrom; each of said rails being slidably received within an associated one of said vertical guide slots;a plurality of brushes carried by said beam;each of said brushes engaging the surface being cleaned;said brushes being freely floating with said support beam within said guide slots upon the surface being cleaned; anda pair of guards received upon and at least partially surrounding said beam.