Street clearing device

Details Street clearing device Street clearing device

E - Fixed Constructions

02

F

37/42

E02F 3/76 (2006.01) E01H 1/10 (2006.01) E01H 5/06 (2006.01)

Patent

CA 1130556

ABSTRACT A street clearing device has a share member that is adapted to be moved by a vehicle over a surface to be cleared. A rotary member is supported below the share member. A hard scraping blade and an elastic scraping blade are mounted at an angle with respect to each other at the rotary member so that the hard or the elastic scraping blade selectively adopts an operative position with respect to the surface to be cleared that is dependent on the angle of rotation position of the rotary member. The other scraping blade is oriented substantially upwardly or rearwardly. A toggle lever with two legs supports the rotary member against rotation. A mounting device holds the toggle lever at least approximately straight in the operative position of the hard scraping blade and bent in the operative position of the elastic scraping blade. The street clearing device is design- ed such that the evasion behaviour of the hard scraping blade on the one hand and the design, dimension and operation of the mounting device, on the other hand, are largely independent of each other. This is achieved by both legs of the toggle lever, in their at least approximately straight position, being adapted to yield in their common longitudinal direction against the resistance of a biased spring, and the mounting device being arranged so that it remains substantially unload- ed and unchanged in length when the hard scraping blade makes evading movements.

341430

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