A hinge device for coupling two rotatable members includes a stud and a shaft extended from one rotatable member and a barrel secured on the other rotatable member. The stud has a coarse wedge shaped projection. The barrel includes a coarse frustum shaped inner peripheral surface for engaging...http://www.google.fr/patents/US5715576?utm_source=gb-gplus-shareBrevet US5715576 - Hinge device for coupling two rotatable members