Terry L Hubbard

US Patent:

51705583, Dec 15, 1992

Filed:

Mar 19, 1992

Appl. No.:

7/854324

Inventors:

Terry W. Hubbard - Indianapolis IN

Assignee:

Klaisler Mfg. Corp. - Indianapolis IN

International Classification:

B23P 1100

US Classification:

2989731

Abstract:

A receiving arm for a fabrication system for mass assembly of wooden trusses by joining the truss members with unitized plate fasteners in preliminary and final assembly areas. A gantry pinch roller is used in the preliminary assembly area for preliminary pressing of the fasteners to the truss members, whereas a stationary truss pinch roller is used in the final assembly area for final pressing of the fasteners to the truss members. A plurality of receiving arms are employed to transfer trusses between the first and second assembly areas. The receiving arms employ cammed movement paths which minimize the risk that trusses will be twisted during transfer by any nonsynchronous movement among the arms.