Joining device

Abstract

A device for joining a first building element to a second building element has a bridge element that is in contact with the first and second building elements to connect the first and second building elements when in a working position, and a first element secured to the first building element by being embedded therein. The first element cooperates with the bridge element. An elastic sleeve is arranged between the first element and the first building element. The elastic sleeve has at least one internal groove, thereby forming at least one cavity between the elastic sleeve and the first element.

1 . A device for joining a first building element to a second building element comprising:
 a bridge element that is in contact with the first and second building elements to connect the first and second building elements when in a working position; and   a first element secured to the first building element by being embedded therein,   wherein the first element cooperates with the bridge element,   wherein an elastic sleeve is arranged between the first element and the first building element, and   wherein the elastic sleeve comprises at least one internal groove, thereby forming at least one cavity between the elastic sleeve and the first element.   
     
     
         2 . The device according to  claim 1 ,
 wherein the first element comprises an elongate box element comprising a box open end in alignment with a surface of the first building element, and   wherein the elastic sleeve forms an elongate main portion arranged around the first element, with an inner surface of the elastic sleeve in abutment with the first element and with a sleeve open end in alignment with the surface of the first building element.   
     
     
         3 . The device according to  claim 2 , wherein the at least one groove in the elastic sleeve extend from the sleeve open end in a longitudinal direction of the elongate sleeve to a sleeve inner end of the sleeve. 
     
     
         4 . The device according to  claim 2 , wherein, in a cross section across the longitudinal direction, the elastic sleeve is square with four inner partial surfaces which together form an inner surface and wherein the grooves are formed in at least two oppositely directed inner partial surfaces. 
     
     
         5 . The device according to  claim 1 ,
 wherein, at the sleeve open end, the elastic sleeve comprises a flange portion, and   wherein a surface of the flange portion is arranged in alignment with a surface of the first building element.   
     
     
         6 . The device according to  claim 5 , wherein the flange portion forms a frame round the sleeve open end of the elastic sleeve. 
     
     
         7 . The device according to  claim 2 , wherein the elastic sleeve has a substantially constant internal cross section along a longitudinal axis of the sleeve, which longitudinal axis extends from the sleeve open end to a sleeve inner end of the sleeve. 
     
     
         8 . A device for joining a first building element to a second building element, comprising:
 a bridge element that is in contact with the first and second building elements to connect the first and second building elements when in a working position,   wherein the bridge element is firmly embedded in an interconnection when the first and second building elements are joined,   wherein an external elastic sleeve is arranged around the bridge element, and   wherein the elastic sleeve is provided with at least one internal groove, thereby forming at least one cavity between the elastic sleeve and the bridge element.   
     
     
         9 . The device according to  claim 8 , further comprising an elastic flange element in contact with the elastic sleeve, wherein the flange element extends in a space between the first and second building elements when joined. 
     
     
         10 . A use of an elastic sleeve, comprising:
 an elongate main portion with an open end,   a flange portion arranged as a frame round the open end   at least one internal groove provided in an inner surface of the sleeve, embedded at least partly in a first building element, and   a part of a joining system for joining the first building element and a second building element arranged inside the elastic sleeve for joining the first and second building elements.   
     
     
         11 . The device according to  claim 3 , wherein, in a cross section across the longitudinal direction, the elastic sleeve is square with four inner partial surfaces which together form an inner surface and wherein the grooves are formed in at least two oppositely directed inner partial surfaces.