Spacer

Abstract

A spacer in a construction element ( 1 ) comprises an inner thread ( 5 ) provided in the construction element ( 1 ), a spacer screw and a support foot ( 6 ). The spacer screw has a thread for cooperation with the inner thread ( 5 ). The support foot ( 6 ) is intended for abutment against a support surface. The distance between the support foot ( 6 ) and the construction element ( 1 ) is adjustable by rotation of the spacer screw. The support foot ( 6 ) has a first engagement means ( 9 ) by means of which it is fixable in the construction element ( 1 ). The spacer screw and the support foot ( 6 ) have mutually corresponding engagement means by means of which the spacer screw is fixable in or on the support foot ( 6 ). The first engagement means of the support foot ( 6 ) is releasable from the construction element ( 1 ).

What is claimed is:  
     
         1 . A spacer in a construction element ( 1 ), comprising a thread ( 5 ) interiorly provided in the construction element ( 1 ), a spacer screw ( 11 ) with a thread ( 13 ) for cooperation with the inner thread ( 5 ), as well as a support foot ( 6 ) intended for abutment against a support surface, the distance between the support foot and the construction element being adjustable by rotation of the spacer screw, characterised in that the support foot ( 6 ) has a first engagement means ( 9 ) by means of which it is fixable in the construction element ( 1 ); that the spacer screw ( 11 ) and the support foot ( 6 ) have mutually corresponding engagement means ( 10 ,  15 ) by means of which the spacer screw ( 11 ) is fixable in or on the support foot ( 6 ) and the first engagement means ( 9 ) of the support foot is releasable from the construction element ( 1 ).  
     
     
         2 . The spacer as claimed in  claim 1 , characterised in that the spacer screw ( 11 ) has a longitudinal channel ( 18 ) in which a fixing means ( 16 ) is disposed so that it extends down in a substrate ( 17 ) beneath the support foot ( 6 ) for anchoring, in the axial direction, the spacer in the substrate.  
     
     
         3 . The spacer as claimed in  claim 2 , characterised in that there is disposed, about the fixing means ( 16 ), a spacer sleeve ( 20 ) which, on fixing of the fixing means, is disposed to abut against both the head of the fixing means and against the surface of the substrate.  
     
     
         4 . The spacer as claimed in  claim 2  or  3 , characterised in that the channel ( 18 ) has a radial abutment; that there is disposed, about the fixing means ( 16 ), a noise-damping bushing ( 21 ) which has a radially projecting flange which, when the fixing means is fixed in place, is located between the abutment of the channel and the head of the fixing means ( 16 ).  
     
     
         5 . The spacer as claimed in  claim 4 , characterised in that the spacer sleeve ( 20 ) is disposed interiorly in the noise-damping bushing ( 21 ).  
     
     
         6 . The spacer as claimed in  claim 1 , characterised in that the support foot ( 6 ) and the spacer screw ( 11 ) are manufactured in two separate parts ( 6 ,  11 ).  
     
     
         7 . The spacer as claimed in  claim 1 , characterised in that the first engagement means of the support foot ( 6 ) is releasably fixable in the inner thread ( 5 ).  
     
     
         8 . The spacer as claimed in  claim 7 , characterised in that the first engagement means ( 9 ) of the support foot ( 6 ) is a thread.  
     
     
         9 . The spacer as claimed in  claim 1 , characterised in that the mutually corresponding engagement means ( 10 ,  15 ) of the support foot ( 6 ) and the spacer screw ( 11 ) are threads.  
     
     
         10 . The spacer as claimed in  claim 1 , characterised in that the mutually corresponding engagement means ( 10 ,  15 ) of the support foot ( 6 ) and the spacer screw ( 11 ) are splines.  
     
     
         11 . The spacer as claimed in  claim 1 , characterised in that the support foot ( 6 ) is pre-mounted in the inner thread ( 5 ) of the construction element ( 1 ).  
     
     
         12 . The spacer as claimed in  claim 1  characterised in that the support foot ( 6 ) has a largest transverse dimension which exceeds the transverse dimension of the thread ( 5 ) provided in the construction element ( 1 ).  
     
     
         13 . The spacer as claimed in  claim 9  or  10 , characterised in that the length of the outer engagement means ( 15 ) of the spacer screw ( 11 ) exceeds the sum total of the length of the inner engagement means ( 10 ) of the support foot ( 6 ) and the inner thread ( 5 ) of the construction element ( 1 ).  
     
     
         14 . The spacer as claimed in  claim 1 , characterised in that the inner thread ( 5 ) of the construction element ( 1 ) is realised in a bushing ( 4 ) disposed in the construction element ( 1 ).