专利名称：Lid and hinge arrangement for a convertible
sewing machine
发明人：Ronald C. Iannarone申请号：US06/041955申请日：19790523公开号：US04343253A公开日：19820810
摘要：A convertible sewing machine bed lid and hinge arrangement includes a lid thatmay be pivoted downwardly to expose an elongated arm for sewing tubular garments.The lid has depending pivot bosses and the bed has a web casting that includes legsconnected to the bosses by the hinge pins fitted into apertures in the bosses and slots inthe legs. A pair of leaf springs held by projections that interlock with the casting entrapthe pins within the slots and urge them toward a closed extremity of the slots. Latchingprojections on the free side of the lid are resiliently forced into recesses in the arm toretain the lid in a horizontal position to provide an expansive work supporting surface.
申请人：THE SINGER COMPANY
代理人：James M. Trygg,Robert E. Smith,Edward L. Bell
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