Patent ID: 8800634

Claim:
A device for fastening a window blind with a window blind end piece comprising: a front surface; a mounting element; an axis segment arranged on the front surface, the axis segment interacting with the mounting element, which can be rotated about an axis of rotation of the axis segment, for at least one of opening and closing a holding mount; an axial guide fixing an axial position of the mounting element in relation to the axis of rotation of the mounting element about the axis segment; and a positioning means, which is separate from the axial guide, for detachable fixing of the mounting element in at least one rotation position of the mounting element in relation to the axis segment, the positioning means comprising a locking block arranged on a circumferential surface of the axis segment, wherein at least one of the locking block comprises a raised section extending in an outwards direction in relation to the circumferential surface of the axis segment and the locking block is arranged on a side of the axis segment turned away from the holding mount.