Motor vehicle`s combustion gas exhausting pipe for automobile industry, has slit situated in axial alignment of another slit so that end portion of former slit covers region of third slit, where end portion is deformed by driving push rod

摘要

#CMT# #/CMT# The pipe has an axial slit (10) located in a locking zone (5), and another axial slit (12) shifted axially and angularly with respect to the slit (10) so that an end portion (12a) of the slit (12) covers a region (10a) of the slit (10). An axial slit (14) is situated in the axial alignment of the slit (12) so that an end portion (14b) of the slit (14) angularly covers a region (10b) of the slit (10). The end portions of the slits are deformed by driving a push rod which crushes a median region (10i) of the slit (10) during the locking of a collar (6). #CMT# : #/CMT# An independent claim is also included for a tube connection comprising an internal tube. #CMT#USE : #/CMT# Used in an automobile industry for exhausting the combustion gas of a motor vehicle. #CMT#ADVANTAGE : #/CMT# The end portions of the slits are deformed towards the push rod by driving the push rod which crushes the median region of another slit during the locking of a collar, so that the clamping forces are concentrated on the median region of the slit which is easily deformable, thus easily crushing the slit during the tightening of the collar. The slit is entirely covered by the collar, thus avoiding leakage of exhaust gas at the slit and ensuring good sealing in the pipe connection. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows an elevational view of a tube connection. 5 : Locking zone 6 : Collar 10, 12, 14 : Slits 10a, 10b : Regions 10i : Median region 12a, 14b : End portions 13 : Push rod.