Nail guide device of a box nailing machine

A nail guide device of a box nailing machine in which a nail connected with another nail by a tying member is driven by a drive rod, said nail guide device comprising:

• a nail magazine for accommodating the nails connected with each other;
• a nose for guiding the drive rod;
• a nail guide plate disposed between said nail magazine and said nose for connecting said nail magazine with the nose, including,
• a lower end portion extending downward to a position lower than a tip of the nail for an entire length of said nail guide plate, and
• a face having a guide groove formed in an upper portion thereof which extends over the entire length of said guide plate;
• and
• a nail cover provided between said nail magazine and said nose opposite to the face on which said guide groove is formed and extending downward for a distance less than a length of the nail, said nail cover and said guide plate forming a nail path, wherein said guide groove is engaged with a side portion of the head of the nail to guide the nail from said nail magazine to the nose;
• and
• a flange protruding substantially perpendicular into the nail path formed in said lower end portion of said nail guide plate so as to shield only the tip of the nail.