(57) A cable break protection mechanism for an overhead door, comprising a base for mounting
on a door leaf of an overhead door and a gripper connected to the base, which is movable
between a normal position in which, during use, the gripper runs clear along a guide
section of the overhead door, and an emergency position in which the gripper impacts
the guide section, wherein the gripper is coupled via an adjustment mechanism to a
cable connection, and is biased to the emergency position, so that, during use, the
gripper is maintained in the normal position through tensile force of a hoisting cable
connected to the cable connection. The adjustment mechanism comprises a lever.
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