Title:
METHOD AND APPARATUS FOR MANUFACTURING SPIRAL-REINFORCEMENTS FOR REINFORCED CONCRETE
Document Type and Number:
WIPO Patent Application WO/2010/044052
Kind Code:
A4
Abstract:
The method for manufacturing spiral reinforcements provides for feeding a metal wire (2) through a foldingunit (5) provided with a central mandrel (7) and an eccentric folding pin (8), having parallel axis, and for performing successive folds of said metal wire (2) with respect to the longitudinal feed axis (A), to produce a succession of polygonal coils (20) designed to form a spiral-reinforcement (21) constituted by a sequence of perpendicular tracts (22) and of oblique tracts (23) with respect to the longitudinal axis (L) of the spiral. On at least one side of the polygonal coils (20), to form said oblique tracts (23), are made a first fold (23a) on a plane orthogonal to the axis of the mandrel (7) and of the eccentric folding pin (8) and at least a second fold (23b) extended in a third dimension suitably inclined with respect to the aforesaid plane.
Inventors:
GALLUCCIO ANTON MASSIMO (IT)
Application Number:
PCT/IB2009/054478
Publication Date:
September 02, 2010
Filing Date:
October 12, 2009
Export Citation:
Assignee:
SCHNELL SPA (IT)
GALLUCCIO ANTON MASSIMO (IT)
GALLUCCIO ANTON MASSIMO (IT)
International Classes:
B21F1/00; B21D11/12; E04C5/06
Attorney, Agent or Firm:
MANZELLA, Giovanni (Via Nosadella 9, Bologna, IT)
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