公开(公告)号：EP0642706A4

公开(公告)日：1995-12-20

申请号：EP94911641

申请日：1994-03-17

申请人： PROSPECTS CORP

发明人： LU MICHAEL Y ,  PAN PETER J ,  CHUANG CLIFF L ,  ZHANG JAINJUN ,  ZHANG JOHN ,  LI JAMES S ,  CHEN ZIQIANG ,  WANG CHONGTIAN ,  SHAO YONGBO

IPC分类号： E05F15/16 ,  B60J1/00 ,  B60J1/17 ,  B60J7/057 ,  E05F15/00 ,  F16P3/14 ,  H02P7/06 ,  H02P1/22 ,  B60L1/00 ,  E05F15/02 ,  E05F15/10 ,  G05B1/02 ,  G05B5/00 ,  H02P5/16 ,  H02P5/165

CPC分类号： E05F15/431 ,  E05Y2400/358 ,  E05Y2400/452 ,  E05Y2400/664 ,  E05Y2800/40 ,  E05Y2900/55 ,  F16P3/141 ,  F16P3/144

摘要： An obstruction detection apparatus (44) is provided for use in closing a power driven vent, such as a window, that is located in an opening. The vent includes a first closing edge that moves as the vent is closed and the opening includes a second closing edge that is contacted by the first closing edge when the vent is in a fully closed position. The apparatus includes a detector (52) configured to detect an obstruction at points all along the second closing edge without requiring contact between the obstruction and the vent and to deliver a detection signal when an obstruction is detected. A controller (46) is connected to the detector for receiving the detection signal and delivering a corresponding alarm signal (48).