Combination locks with improved code-changing features

A locker lock comprising:

• a lock housing;
• a locking mechanism assembled with the lock housing, the locking mechanism comprising a locking bolt laterally moveable between a locking position and a releasing position, a locking lever connected to the locking bolt, and first, second, and third tumbler discs rotatable about a post, wherein when each of the first, second, and third tumbler discs is rotated to an unlocking orientation, the locking lever pivots to engage aligned recesses in the first, second, and third tumbler discs, such that further rotation of the first, second, and third tumbler discs moves the locking bolt from the locking position to the releasing position;
• a dial secured to the lock housing for selective rotation of the first, second, and third tumbler discs, the dial including a drive portion rotationally secured in interlocking engagement with the first tumbler disc in one of a plurality of code selecting orientations;
• and
• a camming member disposed in the lock housing, the camming member being operable in a code change condition to axially disengage the first tumbler disc from the drive portion of the dial, allowing for rotation of the dial with respect to the first tumbler disc and re-engagement of the dial with the first tumbler disc in another of the plurality of code selecting orientations;
• wherein the locking lever includes a disc securing portion positioned to prevent axial disengagement of the first tumbler disc from the drive portion of the dial when the locking lever is engaged with the aligned recesses in the first, second, and third tumbler discs.

A combination locking arrangement comprising:

• a locking member moveable between a locking position and a releasing position;
• a locking lever connected to the locking member;
• at least first and second tumbler discs rotatable about a tumbler disc axis, wherein when each of the at least first and second tumbler discs is rotated to an unlocking orientation, the locking lever engages aligned recesses in the at least first and second tumbler discs, such that further rotation of the at least first and second tumbler discs moves the locking member from the locking position to the releasing position;
• and
• a dial rotatable about the tumbler disc axis for selective rotation of the at least first and second tumbler discs, the dial including a drive portion rotationally secured in interlocking engagement with the first tumbler disc in one of a plurality of code selecting orientations;
• wherein the locking lever includes a disc securing portion positioned to prevent axial disengagement of the first tumbler disc from the drive portion of the dial when the locking lever is engaged with the aligned recesses in the at least first and second tumbler discs.