Improvements in unión devices between tubes of different rigidity (Machine-translation by Google Translate, not legally binding)

摘要

Improvements in joining devices between pipes of different rigidity, such as a rubber tube, plastic material or similar and a rigid inner sleeve, provided with external teeth with saw tooth profile and lined on the flexible tube, which is compressed especially the contour of said sleeve by means of an outer clamping sleeve, provided with an internal helical toothing with sawtooth profile, at least one of said sleeves having a permanent elasticity capable of compensating for the loss of elasticity due to aging of the flexible tube, characterized by providing the internal sleeve with two different external teeth which are coupled, both with the flexible tube inside the outer clamping sleeve, and which comprise a helical anterior toothing and an annular rear tooth. (Machine-translation by Google Translate, not legally binding)