Patent ID: 6640375
Filing Date: 2003-11-04
Classification: A46B,E01H

Abstract:
A brush assembly in a movable sweepers, said sweeper having a vehicle frame to which a rotatable cylindrical brush is connected, said brush having a rotation axle, a rotation motor, a brush frame, a brush frame beam and a shield fixed to said brush frame beam to guide particles which are to be brushed, said brush frame being coupled to said vehicle frame with a vertical axle wherein said brush frame being able to be turned to throw, when rotating, the particles to the right or left in relation to a driving direction of the sweeper, said sweeper comprising a turning equipment to turn said brush frame around the vertical axle, said turning equipment comprising:an articulated auxiliary bar having a first end fixed to said vehicle frame by a joint, a first hydraulic cylinder being fixed to said auxiliary bar by a first end of said first hydraulic cylinder and being fixed to the vehicle frame by a second end of said first hydraulic cylinder, a second hydraulic cylinder being fixed to said auxiliary bar by a first end of said second hydraulic cylinder and being fixed to the brush frame by a second end of said second hydraulic cylinder, wherein: working position angles for said brush are obtained and maintained by driving one of said first hydraulic cylinders and second hydraulic cylinders to its longest or correspondingly shortest position, and a transporting position angle for said brush being obtained by driving the other one of said first hydraulic cylinder or second hydraulic cylinders to its extreme position.