| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To increase the degree of freedom of positions of a lifting cord and a lifting stop device in the lifting stop device of a blind for detecting loosening of the lifting cord and automatically stopping a lifting operation of the blind. <P>SOLUTION: The lifting stop device comprises: a slider 38 arranged so as to reciprocate to a head box; and a micro-switch 36 capable of regulating rotation of a lifting drum 22 when the slider 38 is at a neutral position of a reciprocating range and releasing the regulation of the rotation of the lifting drum when the slider 38 is somewhere other than the neutral position of the reciprocating range. The slider 38 is capable of approaching the neutral position from any side of the reciprocating range, is on one side of the reciprocating rage to the neutral position when the lifting cord is in a tense state, and is moved to the neutral position when the lifting cord is loosened. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
