US 9,808,854 B2
Device and method for automatically twisting metal wires, in particular for connecting adjacent, preferably mutually intersecting structure elements
Gunther Horn, Aurich (DE)
Assigned to WOBBEN PROPERTIES GMBH, Aurich (DE)
Appl. No. 14/428,934
Filed by Wobben Properties GmbH, Aurich (DE)
PCT Filed Jul. 25, 2013, PCT No. PCT/EP2013/065678
§ 371(c)(1), (2) Date Mar. 17, 2015,
PCT Pub. No. WO2014/044443, PCT Pub. Date Mar. 27, 2014.
Claims priority of application No. 10 2012 216 831 (DE), filed on Sep. 19, 2012.
Prior Publication US 2015/0266082 A1, Sep. 24, 2015
Int. Cl. B21F 15/04 (2006.01); E04G 21/12 (2006.01)
CPC B21F 15/04 (2013.01) [E04G 21/123 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An apparatus for twisting metal wires for connecting adjacent or mutually crossing structural elements, the apparatus comprising:
a wire feed means for feeding wire into the apparatus,
an arcuate wire guide that has a selectively openable and closable opening and is adapted to guide the fed wire when in the closed position along the arcuate wire guide from a first side of the arcuate wire guide to a second side of the arcuate wire guide, wherein the first and second sides of the arcuate wire guide are in opposite relationship with respect to the opening,
a pulling slider adapted to engage the fed wire on the first side of the arcuate wire guide and to pull the fed wire towards the second side of the arcuate wire guide, and
a twisting unit adapted to engage the fed wire on both the first and second sides of the arcuate wire guide and to twist the fed wire by a rotational movement.