Clip as well as a method and a hook for use in the method for fastening reinforcement steel bars

Abstract

A clip for connecting steel bars, the clip having two loop shaped ends which are connected by a intermediate wire piece which is bent such that the clip can be mounted on a crossing of at least two rods and will keep its position on that rod before the clip is twisted to secure the rods together. Also disclosed is a hook for engaging such a clip, wherein the hook has a shaft that, on one end is provided with the hook element and that, on the other free end is insertable in a hand power tool such as a hand drill. Further a method for connecting at least two steel bars crossing each other is provided, the method including the use of a jig, clips and a hook with a hand powered tool.

1 . A clip for connecting steel bars, the clip having two loop shaped ends which are connected by a intermediate wire piece which is bent such that the clip can be mounted on a crossing of at least two rods and will keep its position on that rod before the clip is twisted to secure the rods together. 
   
   
       2 . The clip according to  claim 1 , wherein the loop shaped ends have a internal diameter such that it can be engaged by a hook. 
   
   
       3 . The clip according to  claim 1 , wherein the intermediate wire piece is U-shaped, the U having two legs interconnected by a body. 
   
   
       4 . The clip according to  claim 1 , wherein the intermediate wire piece is U-shaped, the U having two legs interconnected by a body, the legs containing at least one bent over a line which is substantially parallel to the body. 
   
   
       5 . The clip according to  claim 3 , wherein the loops extend in a plane which includes an angle with the plane in which the legs of the U-shaped intermediate piece extend near the loops. 
   
   
       6 . (canceled) 
   
   
       7 . Hook for engaging a clip according to  claim 1 , wherein the hook has a shaft that, on one end is provided with the hook element and that, on the other free end is insertable in a hand power tool such as a hand drill. 
   
   
       8 . Hook according to  claim 7 , wherein the hook tapers towards the free end thereof. 
   
   
       9 . Method for connecting two steel bars crossing each other, the method comprising:
 providing a jig in which the bars can be positioned relative to each other so that the steel bars together determine at least one crossing;   providing a clip according to  claim 1 ;   placing the hook in a hand power tool, such as a hand power drill preferably having a clockwise and counterclockwise rotation possibility;   applying the at least one clip on the at least one crossing, wherein the clip maintains its position;   placing the hook through the loop shaped ends of the at least one clip;   powering the powered hand tool so that the clip is twisted and the substantially fixed is connected by the twisted clip.   
   
   
       10 . Method according to  claim 9 , wherein multiple clips are applied to multiple crossings before and wherein, after that, the multiple clips are twisted with the hook powered by the hand powered hand tool. 
   
   
       11 . Method according to  claim 9 , wherein the powered hand tool is powered until the loop shaped ends break off the twisted intermediate part of the clip. 
   
   
       12 . The clip according to  claim 2 , wherein the intermediate wire piece is U-shaped, the U having two legs interconnected by a body. 
   
   
       13 . The clip according to  claim 2 , wherein the intermediate wire piece is U-shaped, the U having two legs interconnected by a body, the legs containing at least one bent over a line which is substantially parallel to the body. 
   
   
       14 . The clip according to  claim 4 , wherein the loops extend in a plane which includes an angle with the plane in which the legs of the U-shaped intermediate piece extend near the loops. 
   
   
       15 . Hook for engaging a clip according to  claim 2 , wherein the hook has a shaft that, on one end is provided with the hook element and that, on the other free end is insertable in a hand power tool such as a hand drill. 
   
   
       16 . Method for connecting two steel bars crossing each other, the method comprising:
 providing a jig in which the bars can be positioned relative to each other so that the steel bars together determine at least one crossing;   providing a clip according to  claim 2 ;   placing the hook in a hand power tool, such as a hand power drill preferably having a clockwise and counterclockwise rotation possibility;   applying the at least one clip on the at least one crossing, wherein the clip maintains its position;   placing the hook through the loop shaped ends of the at least one clip;   powering the powered hand tool so that the clip is twisted and the substantially fixed is connected by the twisted clip.   
   
   
       17 . Method for connecting two steel bars crossing each other, the method comprising:
 providing a jig in which the bars can be positioned relative to each other so that the steel bars together determine at least one crossing;   providing a clip according to  claim 3 ;   placing the hook in a hand power tool, such as a hand power drill preferably having a clockwise and counterclockwise rotation possibility;   applying the at least one clip on the at least one crossing, wherein the clip maintains its position;   placing the hook through the loop shaped ends of the at least one clip;   powering the powered hand tool so that the clip is twisted and the substantially fixed is connected by the twisted clip.   
   
   
       18 . Method for connecting two steel bars crossing each other, the method comprising:
 providing a jig in which the bars can be positioned relative to each other so that the steel bars together determine at least one crossing;   providing a clip according to  claim 4 ;   placing the hook in a hand power tool, such as a hand power drill preferably having a clockwise and counterclockwise rotation possibility;   applying the at least one clip on the at least one crossing, wherein the clip maintains its position;   placing the hook through the loop shaped ends of the at least one clip;   powering the powered hand tool so that the clip is twisted and the substantially fixed is connected by the twisted clip.   
   
   
       19 . Method for connecting two steel bars crossing each other, the method comprising:
 providing a jig in which the bars can be positioned relative to each other so that the steel bars together determine at least one crossing;   providing a clip according to  claim 5 ;   placing the hook in a hand power tool, such as a hand power drill preferably having a clockwise and counterclockwise rotation possibility;   applying the at least one clip on the at least one crossing, wherein the clip maintains its position;   placing the hook through the loop shaped ends of the at least one clip;   powering the powered hand tool so that the clip is twisted and the substantially fixed is connected by the twisted clip.   
   
   
       20 . Method for connecting two steel bars crossing each other, the method comprising:
 providing a jig in which the bars can be positioned relative to each other so that the steel bars together determine at least one crossing;   providing a clip according to  claim 6 ;   placing the hook in a hand power tool, such as a hand power drill preferably having a clockwise and counterclockwise rotation possibility;   applying the at least one clip on the at least one crossing, wherein the clip maintains its position;   placing the hook through the loop shaped ends of the at least one clip;   powering the powered hand tool so that the clip is twisted and the substantially fixed is connected by the twisted clip.   
   
   
       21 . Method according to  claim 10 , wherein the powered hand tool is powered until the loop shaped ends break off the twisted intermediate part of the clip.