Patent ID: 7506407

Claim:
In a torque adjusting type hinge comprising: a stationary wing plate ( 1 ) fixedly mounted on a stationary frame element ( 3 ); a movable wing plate ( 5 )fixedly mounted on a wing element ( 7 ); and, a pivot pin ( 9 ), which is inserted into both sleeve-like bearing portion ( 4 ) of said stationary wing plate ( 1 ) and a sleeve-like bearing portion ( 8 ) of said movable wing plate ( 5 ) so as to rotatably connect said movable wing plate ( 5 ) with said stationary wing plate ( 1 ); the improvement wherein, a pair of cylindrical drive element ( 14 ), each of said cylindrical drive elements ( 14 ) is radially interposed between said pivot pin ( 9 ) and at least a portion of one of said sleeve-like bearing portion ( 4 ), of said stationary wing plate ( 1 ), and a small diameter portion of each of said cylindrical drive elements ( 14 ) is radically interposed between said pivot pin ( 9 ) and at least a portion of said sleeve-like bearing portion ( 8 ) of said movable wing plate ( 5 ) in a radius direction of said pivot pin ( 9 ); a cylindrical friction element ( 15 ), is radially interposed between said pivot pin ( 9 ) and the remaining portions of said sleeve-like bearing portion ( 4 , 8 ) of said stationary wing plate and said sleeve-like bearing portion ( 8 ) of said movable wing plate ( 5 ) in a radius direction of said pivot pin ( 9 ); a swash plate-like surface ( 17 ) formed in a respective axial end portion of each of said cylindrical drive elements ( 14 ) is abutted against a swash plate-like surface ( 18 ) formed in a respective axial end portion of said cylindrical friction element ( 15 ); a nut ( 19 ), is threadably engaged with a threaded pin portion ( 12 ) formed in an end portion of said pivot pin ( 9 ), and said nut ( 19 ) is tightened to axially move each of said cylindrical drive elements ( 14 ) towards each other in a longitudinal direction of said pivot pin ( 9 ), so that said swash plate-like surfaces ( 17 , 18 ) perform a guiding operation to move said cylindrical friction element ( 15 ) radially outwardly in a radius direction of said pivot pin ( 9 ), whereby said cylindrical friction element ( 15 ) has its outer peripheral surface brought into press-contact with an inner peripheal surface of at least one of the sleeve-like bearing portions ( 4 , 8 ) causing said inner peripheral surface of said sleeve-like bearing portions ( 4 , 8 ) to produce a friction torque between said outer peripheral surface of said cylindrical friction element ( 15 ) and said inner peripheal surface, whereby said friction torque is controlled with reference to both a desired weight of and an angular position of said wing element ( 7 ).