Patent ID: 6488055
Filing Date: 2002-12-03
Classification: E04G

Abstract:
A pneumatic steel bar binding apparatus comprising:a J-shaped mechanism having a square panel with four corners at one end thereof, each of said four corners having a round hole formed therein, said square panel having a round hole formed centrally thereof, said round hole having a large diameter section and a small diameter section, said small diameter section having an accommodating hole in communication therewith and extending therefrom, said accommodating hole having a transmission shaft extending therethrough, said transmission shaft having a square end with a screw thread extending outwardly therefrom, said screw thread being affixed to a small diameter gear, said small diameter gear having teeth meshing with teeth of a large diameter gear, said large diameter gear being a compound gear with a small diameter gear element in axially aligned relation therewith, said small diameter gear element engaging another large gear such that a rotation of the said transmission shaft causes a rotation of said another large gear; a spiral twister means having a toothed outer diameter in meshing relationship with said another large gear, said spiral twister means for twisting separate ends of a steel staple together when said transmission shaft causes said toothed outer diameter to rotate; a support ring rotatably receiving said spiral twister means therein, said support ring positioned below said transmission shaft; pneumatic drive means connected to said transmission shaft for rotating said transmission shaft upon actuation by an operator; and a ramming means cooperative with said spiral twister means for pushing the separate ends of said steel staple into said spiral twister means.