Method for tightly joining two end sections of corrugated pipes and device for carrying out this method

Abstract

The invention relates to a method for directly joining two end sections ( 3, 4 ) of corrugated pipes ( 1, 2 ), comprising the following steps: inserting the end sections ( 3, 4 ) of the corrugated pipes ( 1, 2 ) into a preferably inventive heat-shrinkable sleeve arrangement ( 8, 9 ); subjecting the heat-shrinkable sleeve arrangement ( 8, 9 ) to heat in the area of the end sections ( 3, 4 ) of the corrugated pipes ( 1, 2 ) so that the heat-shrinkable sleeve arrangement ( 8, 9 ) rests against the outside wall of the end sections ( 3, 4 ) of the corrugated pipes ( 1, 2 ), and; stress-free cooling the heat-shrinkable sleeve arrangement ( 8, 9 ) and the end sections ( 3, 4 ) of the corrugated pipes ( 1, 2 ) to a temperature at which the connection can be mechanically stressed. This enables end sections ( 3, 4 ) of corrugated pipes ( 1, 2 ) to be joined to one another easily and in a cost-effective manner.

1 - 4 . (canceled) 
   
   
       5 . A method for tightly joining two end sections of corrugated pipes, comprising the steps of:
 inserting the end sections of the corrugated pipes into a shrink tube assembly, the shrink tube assembly including a shrink tube coated on an inner side thereof with an adhesive layer comprising an adhesive that is activatable by heat;   applying heat to the shrink tube assembly at least in the region of the end sections of the corrugated pipes such that the shrink tube assembly lies against the outer wall of the end sections of the corrugated pipes; and   cooling the shrink tube assembly and the end sections of the corrugated pipes in a stress-free manner to a temperature at which the joint can be mechanically stressed.   
   
   
       6 . The method of  claim 5 , wherein each of the end sections includes a plurality of elevations and depressions, and said inserting step further comprises covering at least three elevations and depressions of each of the end sections of the corrugated pipes with the shrink tube assembly. 
   
   
       7 . The method of  claim 5 , wherein said applying step further comprises applying heat by means of warm air. 
   
   
       8 . The method of  claim 5 , wherein said applying step further comprises applying heat by means of warm water.