Patent ID: 8763993

Claim:
A crane hook assembly for a crane having a rope drum, the crane hook assembly comprising: a crane hook; a rope arranged to be alternately wound onto or unwound from the rope drum of the crane for lifting and lowering said crane hook in a vertical direction; a hook weight arrangement configured for applying a tension load to said rope; said hook weight arrangement including a hook weight body connected to said rope and an additional weight configured to be optionally attachable to said hook weight body when needed to impart additional tension to said rope; said hook weight body defining a longitudinal axis extending in said vertical direction and having an essentially cylindrical section transverse to said axis; said hook weight body having a lower end and defining an opening configured to have said rope guided therethrough; said crane hook being attached to said lower end of said hook weight body; said additional weight including at least two jacket parts shaped as annular sections which conjointly assume an essentially cylindrical form; said jacket parts annularly surrounding said hook weight body when attached thereto; said jacket parts being configured to conjointly define two diametrically arranged gaps for guiding said rope therethrough; a pulley having a peripheral edge and being mounted in said hook weight body; and, said peripheral edge of said pulley projecting into said gaps.