发明名称 |
Door opening and closing system |
摘要 |
A door state changing apparatus assists a user to move a door between a closed state where the door (8, 9) is positioned adjacent a door frame and an open state. The door state changing apparatus includes a permanent magnet (13, 14) provided on the door and having a permanent magnetic field. An electromagnet (11, 12) is located on the door frame adjacent the permanent magnet with the door in a closed state and is energisable to provide a magnetic field which reinforces the permanent magnetic field of the permanent magnet or to provide a magnetic field in opposition to the permanent magnetic field of the permanent magnet. A door position detector detects the open or closed state of the door and a user interface detects the presence of a user attempting to alter that state. A controller (6) receives input from the door position detector and the user interface and energises the electromagnet (11, 12) to provide a reinforcing magnetic field if a user is attempting to move the door (8, 9) from an open state to a closed state and provides an opposing magnetic field to the permanent magnetic field of the permanent magnet if the door is closed and the user interface indicates that a user is attempting to open the door. The disclosure is particularly adapted for use in a domestic refrigerator.
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申请公布号 |
NZ510024(A) |
申请公布日期 |
2002.09.27 |
申请号 |
NZ19990510024 |
申请日期 |
1999.08.16 |
申请人 |
FISHER & PAYKEL APPLIANCES LIMITED |
发明人 |
FULLER, GRAEME COLIN;DUNCAN, GERALD DAVID;SPONG, KEITH BROOKES |
分类号 |
E05B47/00;E05F1/00;H01F7/06;(IPC1-7):E05F1/00 |
主分类号 |
E05B47/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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