Patent · US Expired

Stranded wire twisting device of reinforcement binding machine

US7051650B2 · kind B2 · utility

13Cited by
4References
11Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 24, 2002
Grant dateMay 30, 2006
Priority date
Expiry dateDec 18, 2022

Classification

  • Technology area (CPC E)Fixed Constructions
  • CPC primaryE04G21/123
  • WIPO fieldCivil engineering
  • WIPO sectorOther fields

Abstract

A twisting shaft 33 and a remover 34 fitted around the twisting shaft 33 are provided with forks 37, 44 at their respective front portions, and hooks 38 bent from front ends of the forks of the twisting shaft in the forward rotational direction are provided. The remover is rotatable by a one-way stopper mechanism in the forward direction only. When the twisting shaft and remover are rotated forward, a binding wire loop is hung on the hooks 38 and twisted. When the twisting shaft is reversely rotated after the completion of the twisting operation, the remover stops being rotated by the one-way stopper mechanism, and the twisting shaft alone is reversely rotated. As a result, the hooks 38 hide themselves behind the forks 44 of the remover 34, and the binding wire engaged with the hooks 38 is pressed by the forks 44 and removed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.