| 摘要 |
Assisting mechanism according the invention has a spring device, the elements of which (1) and (2) move in respect to each other when the flap (sash) is being opened, and that moving is being forced by a spring. The spring device is connected with the elements (4) and (6) of the flap closure, one end of the device being connected with an element of the frame or of the flap (sash or cover) in constant distance from the axis of turning of the flap, and the second end sliding on the other element of the flap closure, i.e. respectively the flap (sash or cover) or the frame. The assisting mechanism has also a rigid element (8) connected at one end with the sliding end of the spring device and on the opposite end with that element of the flap closure, with which the spring device is connected. The location of connection of the spring device and the rigid element (8) are distant from each other. |
