Locking fitting for the incline adjustment of a seat back

摘要

A tilt adjustment mechanism for a seat back such as an automobile seat back includes a mechanism upper part and a mechanism lower part that are mounted in opposition about a common horizontal swivel axis so as to be free to move relative to one another. One mechanism part includes an inner-toothed surface while the other mechanism includes several outer-toothed blocking elements. The outer-toothed surfaces of several blocking elements mounted in the other mechanism part free to be radially displaced and are evenly distributed about a swivel axis. The outer-toothed surfaces of the several blocking elements are held engaged with the inner toothed surface against the force of a spring by means of a control surface of a rotatable cam device. The blocking elements rest entirely on support surfaces of adjacent blocking elements as are slidable relative to one another.