| 摘要 |
PROBLEM TO BE SOLVED: To provide a compact snow plow for removing snow before snow accumulates on a roof. SOLUTION: Rack rails 1 and 1' are installed on a roof in parallel with a space. A motor 2 having gears 4 and 4' installed on a shaft 5 and meshed with the rack rails 1 and 1' are installed between the rails 1 and 1'. Snow on the roof is dropped from the ridge to the eaves by a snow pushing board 3 attached between the gears 4 and 4' when the roof has 1-2 cm of snow. COPYRIGHT: (C)2009,JPO&INPIT
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