Hako-werke Gmbh

Harald Nowak

Carsten Protz

A floor cleaning machine includes a driven brush for sweeping debris and dirt into a dirt container which is supported by a retracting arm actuated by a powered actuator, such as an hydraulic cylinder, between a use position in which said dirt container is sealed to a dirt discharge opening to collect all the dirt, and a raised, dumping position. Between the use position and the dumping position, the dirt container is maintained in the same disposition to avoid inadvertent spillage of its contents, by the cooperation of an articulating linkage which includes an auxiliary arm. The auxiliary arm is releaseably fixed to the machine by a latch to maintain the desired disposition of the dirt container while raising the container. When the dirt container is raised to the dumping position, and the latch is released, the dirt container pivots to dump its contents. A stop device limits the rotation of the dirt container such that when the dirt container is returned, after dumping, to the normal use position, the latch is automatically re-secured.

Floor cleaning machine

A mobile floor or ground cleaning machine includes a hydraulic motor for propulsion and/or operating a cleaning brush. Airflow produced by a fan is directed through a housing located adjacent the cleaning brush for creating an area of low pressure adjacent the brush. The housing includes a filter system through which the airflow is directed. Under the influence of the airflow, the closed housing, which preferably is a unitary structure, directs dirt directly into a receptacle and directs dust through the filter system for subsequent deposit in the receptacle. The housing forms a reservoir for oil which drives the hydraulic motor, with the airflow within the housing serving to cool the oil.

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Munich, Georgia

Harald Nowak