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公开(公告)号：EP1831494B1
公开(公告)日：2008-06-11
申请号：EP05854762.1
申请日：2005-12-21
申请人： WAYNE-DALTON CORP.
CPC分类号： E05D13/003 , E05D13/1261 , E05F15/686 , E05Y2201/492 , E05Y2900/106 , Y10T16/64 , Y10T16/641
摘要： A counterbalance system (25) for a door (D) movable between a closed position and an open position having an axle (20), a cable drum (15) attached to the axle, a winding shaft (35) interconnected with the axle by a counterbalance spring (26), and a pawl (70) selectively movable between a first position for adjusting tension in the counterbalance spring and a second position for preventing rotation of the cable drum upon failure of the counterbalance spring, thereby limiting movement of the door toward the closed position.
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公开(公告)号：EP1831494A2
公开(公告)日：2007-09-12
申请号：EP05854762.1
申请日：2005-12-21
申请人： WAYNE-DALTON CORP.
CPC分类号： E05D13/003 , E05D13/1261 , E05F15/686 , E05Y2201/492 , E05Y2900/106 , Y10T16/64 , Y10T16/641
摘要： A counterbalance system (25) for a door (D) movable between a closed position and an open position having an axle (20), a cable drum (15) attached to the axle, a winding shaft (35) interconnected with the axle by a counterbalance spring (26), and a pawl (70) selectively movable between a first position for adjusting tension in the counterbalance spring and a second position for preventing rotation of the cable drum upon failure of the counterbalance spring, thereby limiting movement of the door toward the closed position.
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