Device for opening a window or a door, especially of the sliding type

摘要

The device comprises a driver (11), which is designed for movement from a passive position to an opening position, thus moving the window (5) from a closed to an open position, a spring (27) for actuating the driver (11) in a direction towards the opening position, and a coupling device (10) for retaining the driver (11) in the passive position, which coupling device may be activated and inactivated, and a guide rail system (12, 13) for controlling the movement of the driver (11) from the passive position to the opening position.