Patent ID: 7251923

Claim:
A chain lock for link chains with two lock parts ( 1 ) which can be displaced by limited amounts with respect to each other in a longitudinal direction of the lock in order to open and close the lock, each lock part having opposed ends which are connected to each other via a longitudinal web ( 2 ), one of said opposed ends forming a stud ( 5 ) having a retaining web ( 7 ) extending over part of a circumference of the stud, and the other of said opposed ends being provided with a recess ( 6 ) for receiving the stud ( 5 ) and having a retaining groove ( 13 ) for the retaining web ( 7 ), characterized in that the stud ( 5 ) and the recess ( 6 ) have a height (H) which is equal to an inner width (b 1 ) of the lock, and in that the stud ( 5 ) has a plurality of said retaining webs ( 7 , 8 ) arranged one above another, and the recess ( 6 ) has a plurality of said retaining grooves ( 13 , 14 ) arranged one above another.