| 摘要 |
PROBLEM TO BE SOLVED: To prevent an outdoor detector from malfunctioning when snow accumulated on the detector gradually melts and lumps of half-melted snow fall on the front side of the detector. SOLUTION: The upper face of the cover 1 is tilted upward such that the accumulated snow may not fall to an unintended direction, and a partition wall 2 is formed on a peripheral part except both side faces in the rear of the upper face. The partition wall is formed so as to be raised perpendicularly from a horizontal maximum projection part of the cover front face, and the cover is an integrally-molded resin article. COPYRIGHT: (C)2010,JPO&INPIT
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