Patent ID: 7690183

Claim:
A chain lock for steel chains, comprising: two lock halves, each lock half having a rear section having opposite ends and extending in a longitudinal direction of the chain lock; a plurality of coupling sections, each coupling section terminating at a respective one of the opposite ends of the rear section; and a locking pin arranged at one of the coupling sections and transversely positioned in relation to a parting plane of the chain lock, said locking pin having a free end formed with a web-like projection, thereby defining a pocket which extends from one side surface of the lock half to another side surface of the lock half and which has substantially linear outer flanks that face the side surfaces of the lock half and enclose an angle in a range from 120° to 150°; and a fork leg arranged at the other one of the coupling sections and having a contour that conforms to the pocket, the fork leg structured to be received by the pocket of the respectively other lock half.