Double shaft gaiter comprising two gaiter elements for the intersection of two vehicles with a jointed connection

The dual-bellows elements (2,3) comprise a connecting frame (20) for connecting a double gangway bellows (1) with a front wall (10) of a vehicle (15). The connecting frame has a circumferential mouth-like opening (25) for fixing one bellows element. The connecting frame has a circumferential sealing bar (50), which is formed with a sealing flap (55).