(57) Presented here is a lock (1; 1') having a blocking function. The lock (1; 1') comprises
a lock case (3; 3'), which lock case (3; 3') comprises a lock mechanism (11; 11').
The lock mechanism comprises a bolt (17; 17') so arranged as to adopt a bolting position
(A) in which the bolt projects outwards in relation to the lock case (3; 3'), a follower
(21; 21') for actuation of the bolt (17; 17'), which follower (21; 21') is rotatably
arranged inside the lock case (3; 3'), and a driver (23; 23') so arranged as to transfer
movement mechanically from the follower (21; 21') to the bolt (17; 17'). The driver
(23; 23') is so arranged as to adopt an interlocked position (A) preventing movement
of the bolt (17; 17') when the bolt (17; 17') adopts its bolting position (A), and
a blocking mechanism (25; 34) is provided for blocking movement of the driver (23;
23'). The blocking mechanism (25; 34) is so arranged as to be capable of being positioned
in a blocking position and a non-blocking position. The follower (21; 21') and the
blocking mechanism (25; 34) have devices (21-3, 25-1; 21'-3, 37-3) for operational
interaction whereby the blocking mechanism (25; 34) can be actuated by the follower
(21; 21') from the blocking position (A). The driver (23; 23') has a part (23-1; 23'-1)
in rotating interaction with the follower (21; 21'), which part (23-1; 23'-1) is arranged
concentrically with the follower (21; 21') to permit rotation about the same shaft.
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