| 摘要 |
PURPOSE: A shaft anti-deflection device of a fireproof and security shutter or a smokeproof curtain is provided to minimize the diameter of a shaft and to form it to maximumize the length of the shaft by preventing the deflection of the shaft regardless of the diameter or weight of a shaft. CONSTITUTION: A shaft anti-deflection device of a fireproof and security shutter or a smokeproof curtain comprises; a setting member(9) coupled to a housing and installed at regular intervals with a shaft; an anti-deflection member(11) hinged with the setting member(9) to be rotatable and preventing the deflection of the shaft regardless of the diameter and length of the shaft by supporting a deflected part of the shaft when revolving on a hinged point; an elastic member(13) elastically supported at regular intervals between the anti-deflection member(11) and the setting member(9), keeping the supported state of a deflected part of the shaft and pushing the shaft to buffer a contact impact.
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