Gripper comprising a toggle lever arrangement for a transport system, in particular a stretching system, namely for fixing a material web edge (Fr) of a material web comprising the following features - the gripper comprises a gripper lever which is pivotable about a gripper axle with respect to a gripper mounting, - the gripper lever is formed as a toggle lever and comprises for this purpose a first and a second toggle lever arm (KH-S1, KH-S2) which are pivotable about a toggle lever axle relative to one another, - the first toggle lever arm (KH-S1) is pivotable about the gripper axle, - the second toggle lever arm (KH-S2) comprises a toggle lever gripper on the free end thereof, - a gripper base comprising a gripper base surface and a gripping face formed thereon is provided on the gripper mounting, and - the two toggle lever arms (KH-S1, KH-S2) of the gripper lever are pivotable between an open position and a closed, clamping position in such a way that the gripping face on the toggle lever flap and the gripping face of the gripper base are held so as to be remote from another in the open position and are held so as to be biased in contact with one another so as to fix an edge located in between of a material web in the closed position, characterised by the following further features - a force application apparatus is further provided, and acts on the second toggle lever arm (KH-S2) pivotable about the toggle lever axle and/or on the toggle lever flap, - the force application apparatus is formed in such a way that when the gripper lever pivots from the release position thereof into the closed, clamping position thereof the toggle lever flap is initially placed on the side of the gripper base remote from the material web so as to pre-fix the material web in this region, before the toggle lever flap, during the further pivot process, reaches the final closed, clamping position thereof in which it holds the material web edge (Fr) clamped between the gripping faces (60d, 61d) under application of force towards the gripper base. - the gripper comprises a gripper lever which is pivotable about a gripper axle with respect to a gripper mounting, - the gripper lever is formed as a toggle lever and comprises for this purpose a first and a second toggle lever arm (KH-S1, KH-S2) which are pivotable about a toggle lever axle relative to one another, - the first toggle lever arm (KH-S1) is pivotable about the gripper axle, - the second toggle lever arm (KH-S2) comprises a toggle lever gripper on the free end thereof, - a gripper base comprising a gripper base surface and a gripping face formed thereon is provided on the gripper mounting, and - the two toggle lever arms (KH-S1, KH-S2) of the gripper lever are pivotable between an open position and a closed, clamping position in such a way that the gripping face on the toggle lever flap and the gripping face of the gripper base are held so as to be remote from another in the open position and are held so as to be biased in contact with one another so as to fix an edge located in between of a material web in the closed position, - a force application apparatus is further provided, and acts on the second toggle lever arm (KH-S2) pivotable about the toggle lever axle and/or on the toggle lever flap, - the force application apparatus is formed in such a way that when the gripper lever pivots from the release position thereof into the closed, clamping position thereof the toggle lever flap is initially placed on the side of the gripper base remote from the material web so as to pre-fix the material web in this region, before the toggle lever flap, during the further pivot process, reaches the final closed, clamping position thereof in which it holds the material web edge (Fr) clamped between the gripping faces (60d, 61d) under application of force towards the gripper base.