RUNG LOCK FRAME FOR A RUNG LOCK ASSEMBLY FOR USE WITH AN EXTENSION LADDER

摘要

A rung lock frame has an upper rung portion, a lower rung portion integrallyformed withthe upper rung portion, and a bar member formed between the upper rung portionand the lowerrung portion. The bar member defines an opening with the lower rung portionfor the receipt of arung of a ladder therein. The upper rung portion, the lower rung portion andthe bar member areintegrally formed of a glass-reinforced nylon material.