Crane with a luffing jib

A crane, comprising:

• a luffing jib having individual telescoping jib members;
• a locking device configured for linkage of jib members and movable between an engagement position in which the jib members are locked together and a release position in which a first one of the jib members can be moved in and out relative to a second one of the jib members, said locking device being supported in the first jib member and received in a receptacle of the second jib member;
• a coupling device;
• and
• an actuating device defining an axis and including a shifter, movable in a direction of the axis, for shifting the locking device via the coupling device between the engagement and release positions;
• said coupling device extending perpendicular to the axis and connected to the shifter, said coupling device having a coupling member movable in a radial direction to effect an interlocking engagement with the locking device which is movable in a same axis as the coupling member, said locking device forming together with the coupling member a coupling between the shifter and the first jib member, wherein in a transition phase between release and engagement positions, a projecting portion of the coupling member enters in form-fitting engagement with the locking device.