Twin-roll blocking unit for a triggering mechanism for a switching device

A triggering mechanism for a switching device, comprising:

• a drive lever;
• a mechanical energy store, suitable to act on the drive lever;
• and
• a blocking device including
• a first blocking element on the drive lever,
• a lever including a first roller and a second roller, the first roller and the second roller being mounted in a rotatable manner on the lever,
• a second blocking element, the second blocking element, in a locked position, being configured to act on the first roller to block the lever against moving in a direction of the second blocking element, and
• a triggering element;
• wherein the second roller is configured to act on the first blocking element to block the first blocking element against moving away from the mechanical energy store or in a direction of the mechanical energy store,
• wherein the second blocking element is movable via the triggering element, the triggering element being configured to move the second blocking element away, out of the locked position, from the first roller,
• wherein the lever, including the first roller and the second roller, is configured to move away out of the locked position, in which the first blocking element is blocked against moving away from the mechanical energy store or in the direction of the mechanical energy store, and
• wherein the first blocking element is configured to roll over the second roller and the drive lever is configured to be moved, by energy stored in the mechanical energy store, away from the mechanical energy store or in the direction of the mechanical energy store.