US Patent 7677168 Easy-maintenance strap guide system of a strapping machine

An easy-maintenance strap guide system of a strapping machine includes a board, a driving set, a first rod, a second rod, a first matching portion, a second matching portion, and an engaging element. The driving set includes an advance roller portion and a retreat roller portion for conveying a strap. When the engaging element disengages with the first rod, the first rod rotates and makes the second rod, the first matching and the second matching portion moving. Hence, a maintenance space is formed. Thus, the maintenance work can be done quickly without the use of tools. It saves the detaching and assembling time. Plus, it can release automatically due to the gravity.