Patent ID: 7540536

Claim:
A seat belt anchor device for anchoring a seat belt to a stud having a shank and an enlarged head, the seat belt anchor device comprising: a plate member having a body thereof; a seat belt opening in the plate body sized to receive a seat belt extending therethrough; a keyhole opening in the plate body having an enlarged portion for fitting the stud head therethrough and a narrower portion for sliding the plate body to an installed position relative to the stud; a spring retainer arranged to extend in overlying relation to the keyhole opening and configured to keep the plate body and stud in the installed position thereof; an end portion of the spring retainer connected to the plate body; and a stop that limits pivoting of the end portion to keep the spring retainer extending in overlying relation to the keyhole opening, wherein the spring retainer has a portion of an indicator portion that extends over the keyhole opening enlarged portion spaced by a predetermined amount from the plate body that is less than a thickness of the stud head.