Anchor channel and method for producing an anchor channel

Abstract

For stable anchoring of an anchor channel in concrete, an anchor, the anchor shank of which has a larger diameter than an anchor hole of a C-profile channel of the anchor channel, is inserted through the anchor hole from the inside, so that the anchor shank widens the anchor hole and holds the C-profile channel clamped on the anchor shank. An anchor head configured as a countersink head bears internally against a protrusion of the C-profile channel, and on the outer side of the C-profile channel knurling holds the anchor in addition to the clamped fit.

1 . An anchor channel having a C-profile channel, which has an anchor hole, and having an anchor, which has an anchor head and an anchor shank and which has been inserted through the anchor hole from the inside, so that the anchor head is located in the C-profile channel and the anchor shank projects outwards from the C-profile channel, wherein the anchor shank has knurling spaced apart from the anchor head; a cross-section of the anchor shank is the same on both sides of the knurling; and a hole rim of the anchor hole engages between the anchor head and the knurling. 
     
     
         2 . The anchor channel according to  claim 1 , wherein the hole rim of the anchor hole is seated clamped on the anchor shank between the anchor head and the knurling. 
     
     
         3 . The anchor channel according to  claim 1 , wherein the anchor has a countersink head as anchor head; the C-profile channel has an outwardly projecting protrusion that surrounds the anchor hole; and on an inner side of the C-profile channel the anchor head lies inside the outwardly projecting protrusion of the C-profile channel that surrounds the anchor hole. 
     
     
         4 . The anchor channel according to  claim 1 , wherein the C-profile channel has a slot in an upper side located opposite the anchor hole; and the anchor head is narrower and longer than the slot is wide. 
     
     
         5 . A method for producing an anchor channel having a C-profile channel, which has an anchor hole, and having an anchor, which has an anchor head and an anchor shank and which is inserted through the anchor hole from the inside, so that the anchor head is located in the C-profile channel and the anchor shank projects outwards from the C-profile channel ( 2 ), wherein during insertion of the anchor shank the anchor hole is widened by means of the anchor shank. 
     
     
         6 . The method according to  claim 5 , wherein the anchor has on the anchor shank, spaced apart from the anchor head, a counter-bearing that protrudes beyond a circumference of the anchor shank, which counter-bearing overlaps a hole rim of the anchor hole on an outer side of the C-profile channel. 
     
     
         7 . The method according to  claim 5 , wherein the counter-bearing is in the form of knurling; and the hole rim of the anchor hole engages between the anchor head and the knurling. 
     
     
         8 . The method according to  claim 6 , wherein prior to the insertion of the anchor shank the diameter of the anchor hole is smaller than the diameter of the anchor shank between the anchor head and the counter-bearing, so that the inserted anchor shank widens the anchor hole and is held clamped in the anchor hole. 
     
     
         9 . The method according to  claim 5 , wherein the anchor hole is circular and the anchor shank has a circular cross-section; and prior to the insertion of the anchor shank through the anchor hole the anchor hole has a smaller diameter than the anchor shank. 
     
     
         10 . The method for producing an anchor channel according to  claim 5 , wherein the C-profile channel has an outwardly projecting protrusion that surrounds the anchor hole, which protrusion is produced prior to the insertion of the anchor shank through the anchor hole, and the anchor shank is then inserted through the anchor hole of the C-profile channel from the inside. 
     
     
         11 . The method for producing an anchor channel according to  claim 5 , wherein the anchor shank is inserted through the anchor hole of the C-profile channel from the inside, so that the anchor head is located in the C-profile channel; and, at the end of the insertion of the anchor shank through the anchor hole in the C-profile channel, an underside of the anchor head is pressed against the C-profile channel from the inside with sufficient force that the underside of the anchor head forms an outwardly projecting protrusion of the C-profile channel that surrounds the anchor hole.