Abstract: Clamp (1) for clamping a cord in tension, in which the clamp comprises a U-shaped elongate frame (2) with an elongate recess and an elongate clamping body (3) which is connected to the frame and extends in the recess of the frame, in which—a cord duct (11) is formed in the recess between the clamping body and a clamping surface (10) of the frame, the clamping body is configured to be carried along by a cord passed through the cord duct, in which the distance between the clamping body and the clamping surface decreases when the clamping body is moved, the clamping body has a widened part (7) at one end and in which a hinge (4) is provided between the legs (6a, 6b) of the frame and the widened part of the clamping body, the axis of rotation of which extends at right angles to the longitudinal direction of the frame.