Shovel for removing snow from flat ground e.g. pavement of city, during winter, has applying unit applying thrust force on trough, and free edge lying between foot of perpendicular and small base of half-trunk of cone

摘要

The shovel has an applying unit (30) applying thrust force on a trough (10). One of the components (41) of the force combines free edge (18) of a part on a ground (So). Another component (42) combines with a perpendicular (43) to a direction of the free edge. One of the components is located in quarter of space (Qe), which is formed in front of the trough and delimited by two portions of planes perpendicular to the ground at the free edge. The free edge lies between a foot (45) of the perpendicular and a small base (11) of a half-trunk of a cone.