Patent ID: 9561939
Date: 2017-02-07
CPC Classifications: B66C

Claim:
1. A crane hook being suspended from a rope, said crane hook comprising: a hook body having an attachment portion to be attached to the rope at a base end portion and being curved in an L-shaped from the base end portion to a tip end portion; a shaft being fixed to the hook body; a rotation member being rotatably supported by the shaft and having an abutment portion to be brought into contact with and separated from a curved inner surface of the hook body on a side of the tip end portion of the hook body relative to the shaft; a biasing member biasing the rotation member in a direction where the rotation member is caused to abut on the hook body; and a regulating member being detachable from and attachable to the rotation member, wherein the rotation member has a plurality of through-holes penetrating in an extending direction of the shaft, the through-holes including: a first through-hole through which the regulating member is passed, a second through-hole into which the shaft is passed at position distant from the abutment portion relative to the first through-hole, and a third through-hole through which the regulating member is passed at position distant from the abutment portion relative to the second through-hole, and the regulating member abuts on a curved inner surface of the hook body when the regulating member is passed through the first through-hole to regulate rotation of the rotation member against biasing force of the biasing member, and permits the rotation of the rotation member when the regulating member is passed through the third through-hole.