| 摘要 |
The invention relates to a device for opening, by way of force, an operating sash ( 100 ) which has a length (L) and which comprises an opening part ( 102 ) and a fixed frame ( 104 ), such as a door or window, comprising at least one frame ( 2 ) whose length can be extended and which is formed by one or several sliding parts ( 10,20 ) which can be adapted to the length (L) of the operating sash; a corner ( 12,22 ) which can be depressed and which is arranged in between the frame ( 104 ) and the opening part ( 102 ), a spreader ram ( 50 ) enabling the penetration of said corner ( 12,22 ) between the frame ( 104 ) and the opening part ( 102 ) in order to open the operating sash ( 100 ) by way of force; and a push ram ( 30 ) placed in a substantially perpendicular position with respect to the frame ( 2 ). The rams ( 30;50 ) can be maneuvered at a distance with the aid of a remote control ( 80 ). The invention is characterized in that the push ram ( 30 ) is a continually thrusting percussion ram acting in a repetitive reciprocating manner.
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