ADJUSTING DEVICE FOR ADJUSTING RELATIVE ANGLE OF SHAFT TO BEDRIVEN, PARTICULARLY CAMSHAFT FOR INTERNAL COMBUSTION ENGINE

PROBLEM TO BE SOLVED: To simplify a constitution and surely perform center positioning further with simply arranging of a liquid pipe line made attainable, in a driven shaft of an internal combustion engine and an adjustment device for particularly adjusting a relative angle of a cam shaft. SOLUTION: An adjustment device 10 for adjusting a relative angle of a cam shaft 11 has a drive side part provided with a liquid pressure type adjusting piston 15. This drive side part is arranged with a rotary angle variable in a bearing bush 18, center positioned in an end part 21 of a shaft further screw tightened in the center, through a bearing ring 6. Here, an oil distribution peripheral groove 26, arranged adjacent to the bearing ring 16 by the shaft end part 21, is connected to a pressure chamber 31 limited by the adjusting piston 15 through a connection pipe line 27 provided in the bearing ring 16 and/(or) the bearing bush 18.