| 摘要 |
PURPOSE: A snow removal device is provided to remove snow by bouncing off snow on a surface of a vinyl house by repeating contraction and extension of the surface of the vinyl house into the vinyl house by generating a pressure difference between inside and outside of the vinyl house. CONSTITUTION: A shield(110) blocks flow of air. A double-acting device(120) comprises all devices capable of performing a linear reciprocating motion by moving the shield back and forth to change an inner volume of a vinyl house for generating a change from a high air pressure to a low air pressure. A motive force supply part(130) supplies a motive force that drives the double-acting device. [Reference numerals] (AA) Acting device support unit |
