Cross flow rotary mower

Details Cross flow rotary mower Cross flow rotary mower

A - Human Necessities

01

D

56/48

A01D 57/01 (2006.01) A01D 34/73 (2006.01) A01D 34/82 (2006.01)

Patent

CA 1099115

-51- ABSTRACT A cross flow rotary mower has a rotor with horizontal outer cutting edges and upwardly extending blower vanes. A conduit having upper, lower and side walls cooperates with the rotor to form a cross flow blower. The rear semi-circle of travel of the rotor is within the conduit. The inlet opens forwardly and has a lateral extent pre- ferably as great as the diameter of the tip circle of the rotor. The cutting edges extend forward of the lower wall, and preferably the lower wall extends to the cutting edges. An extension of the upper wall extends forwardly beyond the tip circle with front and side skirt portions. Means for producing and strengthening vortex air flow are described, and also inlet air flow control vanes. A number of rotors and conduit arrangements with advan- tageous features are described. These include dual blower vane arrangements. Force-controlled retractable blades mounted on a blade carrier are described which avoid undue cutting forces and also enable the use of thin blades requiring no sharpening.

341005

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