External opening device for the lock of an inward-opening balcony sash window without vertical window sash

摘要

The invention relates to an opening device with which the locking mechanism on the lower window sash of an opening balcony window which has no vertical sash and which has bearing members at the top and guidance at the bottom can be opened from the outside of the balcony. The need to open a balcony sash window from outside arises in emergency situations, for example, so that, using a rescue ladder, a person can attempt to get from a balcony above to a balcony below which is protected by a glass window. The external opening device for the lock of the balcony sash window is designed with a lifting handle 14, which is mounted in the lower window sash 4 and is fixed in a locking mechanism 10 which is rotated on a shaft 11 provided with a rotary piece 12, placed on its inside, so that the lifting handle 14 is fixed in the locking mechanism 10 in the gap between the lower window sash 4 and the outer edge 18 of the lower rail 2. Upon displacement of the lower window sash 4 and, at the same time, the sash window 5, the lifting handle 14 moves between the lower window sash 4 and the lip-shaped sealing strip 16, which is fixed in the lower rail 2 and presses against the lower window sash 4, the lifting handle 14 passing through a hole drilled in a drip moulding 15 formed on the lower window sash 4. IMAGE