Heel retainer with auxiliary lever

A combined downhill and touring binding for a ski, comprising:

• a base plate which can be fastened on an upper side of the ski;
• a toe retainer;
• a heel retainer comprising a sole retainer and a tensioning device which presses the sole retainer against a sole of a ski boot;
• a connecting structure which connects the tensioning device and the base plate;
• a shifting mechanism comprising a fastening device and a shifting element having a first end which is a front end in a skiing direction and a second end which is a rear end in said skiing direction;
• and
• a latching lever using which the heel retainer can be moved by the shifting mechanism into a walking position and into a travelling position and latched in the walking position or travelling position, respectively;
• wherein the latching lever is connected to the fastening device in a first pivoting joint and arranged in front of the heel retainer in said skiing direction;
• and
• the first end of the shifting element is connected to the latching lever, and the second end of the shifting element is connected to the heel retainer, and
• wherein the latching lever is connected to the shifting element in a second pivoting joint.