External unit for mounting to existing building, has external elevator which utilizes supporting construction of balcony or winter garden whereby external unit enfolds supporting construction for balcony or winter garden

摘要

External unit (1) has external elevator (8) which utilizes supporting construction (2,3) of balcony or winter garden whereby the external unit enfolds the supporting construction for the balcony or winter garden. The supporting construction of balcony or winter garden is supporting construction of the external elevator. An independent claim is also included for the external elevator.