Crane device, method for determining number of falls, and computer readable non-transitory recording medium
AssigneeTadano Ltd.
InventorsKazunari NOGUCHI, Keisuke TAMAKI
Life of this patent
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Abstract
A crane device is capable of setting multiple types of number of rope falls between a tip of a boom and a hook block, and includes: a feed length detection unit that detects a feed length of a rope fed from a winch on which the rope is wound; a boom angle detection unit that detects a boom hoist angle; and a number-of-falls determination unit that calculates information for determining the suitability of the number of falls for the rope on the basis of the feed length, hoist angle, boom length of the boom in a state of hoisting a grounded load.
Claims7
A crane device, capable of setting multiple types of number of rope falls between a tip of a boom and a hook block, comprising:
- a feed length detection unit that detects a feed length of a rope fed from a winch on which the rope is wound;
- a boom angle detection unit that detects a boom hoist angle;
- and
- a number-of-falls determination unit that calculates information for determining suitability of a number of falls for the rope based on the feed length, the hoist angle, the boom length of the boom in a state of hoisting a grounded load.
A method for determining a number of falls for a rope in a crane device, capable of setting multiple types of number of falls of the rope between a tip of a boom and a hook block, the method comprising:
- a step of acquiring a feed length of the rope fed from a winch on which the rope is wound;
- a step of acquiring a hoist angle of the boom;
- a step of acquiring a boom length of the boom;
- and
- a step of calculating information for determining suitability of a number of falls for the rope based on the feed length, the hoist angle, the boom length in a state of hoisting a grounded load.
A computer readable non-transitory recording medium storing a program causing a computer of a crane device, capable of setting multiple types of number of falls of the rope between a tip of a boom and a hook block, to execute predetermined processing, the predetermined processing comprising:
- a process of acquiring a feed length of the rope fed from a winch on which the rope is wound;
- a process of acquiring a hoist angle of the boom;
- a process of acquiring a boom length of the boom;
- and
- a process of calculating information for determining suitability of a number of falls for the rope based on the feed length, the hoist angle, the boom length in a state of hoisting a grounded load.
Dependencies are inferred from the claim text.