Adjustable sun visor

Claim 1

A SUN VISOR FOR MOTOR VEHICLES COMPRISING A MOUNTING ADAPTED TO BE SECURED TO A STRUCTURAL PART OF A MOTOR VEHICLE ADJACENT ITS WIND-SHIELD, A SLEEVE SWIVELLY SUPPORTED BY SAID MOUNTING, SPRING MEANS ACTING BETWEN SAID SLEEVE AND SAID MOUNTING TO CAUSE SUFFICIENT FRICTIONAL ENGAGEMENT BETWEEN THEM TO HOLD THE SLEEVE IN SELECTED ANGULAR POSITION RELATIVE TO SAID MOUNTING, A ROD SUPPORTED BY SAID SLEEVE FOR AXIAL AND ROTARY MOVEMENT RELATIVE THERETO, A TOOTHED RING IN SAID SLEEVE, AN ANNULAR FLANGE IN SAID SLEEVE AT ONE END THEREOF AND ADJACENT SAID TOOTHED RING, A COMPLEMENTARY TOOTHED RING ON SAID ROD, A SPRING ACTING BETWEEN SAID ROD AND SAID SLEEVE TO URGE SAID ROD IN ONE AXIAL DIRECTION IN ORDER TO CAUSE INTER-ENGAGEMENT BETWEEN SAID TOOTHED RINGS AND THEREBY TO LOCK SAID ROD AGAINST ANGULAR MOVEMENT RELATIVE TO SAID SLEEVE, SAID ANNULAR FLANGE LIMITING THE MOVEMEMT OF SAID ROD IN SAID AXIAL DIRECTION SUCH THAT SAID TOOTHED RINGS DO NOT DISENGAGE, SAID ROD BEING MANUALLY MOVABEL IN THE OPPOSITE AXIAL DIRECTION AGAINST THE ACTION OF SAID SPRING IN ORDER TO DISENGAGE SAID TOOTHED RINGS FROM EACH OTHER AND THEREBY TO PERMIT ANGULAR MOVEMENT OF SAID ROD TO ANY SELECTED POSITION RELATIVE TO SAID SLEEVE, AND A VISOR SECURED TO SAID ROD.