Element with a shank and a holding element connected to it for connecting to a rod

Abstract

An element with a shank ( 1 ) and a holding element ( 2 ) connected to it for connecting to a rod ( 100 ) is provided, wherein the holding element ( 2 ) has a recess ( 3 ) having a U-shaped cross-section for receiving the rod ( 100 ) with two legs ( 4, 5 ) open at one end ( 6 ) and an inner thread ( 7 ) on the open legs ( 4, 5 ) and a locking element ( 9 ) with an outer thread ( 8 ) which cooperates with the inner thread of the legs, wherein the inner thread ( 7 ) of the legs and the outer thread ( 8 ) of the locking element are constructed with a flat thread in which the two flanks ( 7 a, 7 b; 8 a, 8 b )) enclose an angle of 90° in each case with the screw axis (S, M). This prevents splaying of the open legs when the locking element is screwed in. The flat thread is easy to produce.

1 - 15 . (canceled) 
     
     
         16 . A holding device comprising:
 a shank portion;   a holding portion connected to the shank portion for holding a rod; and   a locking element to lock the rod in the holding portion;   wherein the holding portion comprises a recess on one end having a U-shaped cross-section and two open legs for receiving the rod, and an inner thread on the open legs;   wherein the locking element comprises an outer thread having two flanks, the outer thread cooperating with the inner thread, one of the two flanks of the outer thread facing the one end of the holding portion and the other of the two flanks of the outer thread facing away from the one end of the holding portion; and   wherein the inner thread comprises two flanks, one of the two flanks of the inner thread facing the one end of the holding portion and the other of the two flanks of the inner thread facing away from the one end of the holding portion, each of the two flanks of the inner thread enclosing an angle of 90° with a central axis (M) of the holding portion;   wherein a crest of the outer thread of the locking element is spaced from a root of the inner thread when the locking element is tightened such that an axial force acts on the holding device to prevent the legs from splaying; and,   wherein the inner thread of the open legs comprises a rounded root.