DEPRESSION ANGLE BASE WARPING STOP MECHANISM OF LIFTING TYPE FROST PREVENTION FAN DEVICE

摘要

PROBLEM TO BE SOLVED: To prevent a depression angle base from being warped by wind fan in a defrosting fan device formed so that a fixture locked to the depression angle base and the depression angle base movably installed through a pivot shaft are set to a depression angle through the load of a frost prevention fan.;SOLUTION: This lifting type frost prevention fan device comprises a relay box 60 having the horizontal oscillating device of a lifting box/frost prevention fan 9 installed on a column vertically installed in a field, a depression angle base mounting stand installed on the horizontal oscillating device, a depression angle base 83 for adjusting depression angle with the frost prevention fan 9 installed on the depression angle base mounting stand through the fixture installed on the depression angle base mounting stand, and a warping prevention means installed between the depression angle base mounting stand and the depression angle base 83.;COPYRIGHT: (C)2005,JPO&NCIPI