Cleaning apparatus for a liquid containing vessel such as a swimming pool.

摘要

A pool cleaning apparatus (5) is provided with spaced apart drive wheels (6,7) for mobility and suction apparatus (12) to clean the interior surface of the pool. A supplementary drive roller (23) is provided generally between the drive wheels (6,7) to move the cleaning apparatus (5) off any convex irregularities that may otherwise strand the apparatus (5) in one position in the pool.