Hinge fitting for adjustable vehicle seat

Claim 1

A hinge fitting for an adjustable vehicle seat having a seat and a back rest, comprising: a seat bracket fixedly secured to said seat and provided with a plurality of notch means thereon; a back rest bracket fixedly secured to said back rest; a link member rotatably mounted on said seat bracket at one end thereof through first pivot and rotatably mounting said back rest bracket at the other end thereof through second pivot means, respectively; first means mounted on said link member selectively engageable with one of said plurality of notch means and for restricting rotation of said link member about said first pivot means relative to said seat bracket; second means mounted on said back rest bracket for permitting rotation of said back rest bracket about said second pivot means relative to said link member upon folding said back rest on said seat and for integrally rotating said back rest and said link member upon rearwardly tilting said back rest; a handle rotatably supported about said first pivot means for disengaging said first means from one of said plurality of notch means; and a connecting member rotatably mounted on said link member at one end thereof through said first means and engageable with said second means at the other end disengageable from said second means upon folding said back rest on said seat subsequent to disengagement of said first means from one of said plurality of notch means according to the rotation of said handle lever. thereby allowing forward folding of said back rest on said seat and also rearward tiltable adjustment of said back rest.