Patent ID: 6212731
Filing Date: 2001-04-10
Classification: A47L,B62D

Abstract:
Apparatus for cleaning a floor, comprising an undercarriage including front and rear axles (1, 3) bearing at least one wheel (2, 4), the front axle (1) being steerable, front cleaning means (5) near the front axle (1) for carrying out a first cleaning step and rear cleaning means (6) for carrying out a second cleaning step, wherein the rear axle (3) is coupled to the front axle (1) by mechanical coupling means (9) in order to steer both axles in a predetermined relationship, such that the front and rear cleaning means (5, 6) follow substantially the same path, wherein the mechanical coupling means (9) includes a flexible endless coupling member which is a cable, belt or chain and substantially parallel to the floor, and guided around front and rear guide wheels (10, 11), the front guide wheel (10) being rotatably fixed to the front axle (1) and the rear guide wheel (11) being rotatably fixed to the rear axle 3.