Means for adjustably supporting headrest of automotive seat

Claim 1

Means for removably connecting and vertically adjustably supporting a head rest to an automotive seat which comprises: a vertically extending hollow member provided with a slot opening and a flange which extends transversely to and outwardly from an upper part of said hollow member, the lower part of the member being within the automotive seat and the flange being mounted substantially over the upper end of the automotive seat; a base member provided to the headrest and slidably received by the vertically extending hollow member, the base member having a row of recesses along the longitudinal axis thereof and with predetermined distances therebetween and each of the recesses having a surface of a right angle with respect to the said longitudinal axis, the lowermost recess of the base member having a lower surface of a right angle with respect to the longitudinal axis thereof, and other recesses having upper surfaces of a right angle with respect to the longitudinal axis; detent means of a U-shape operable to resiliently engage with the selected one of the recesses, and provided with a base portion and bifurcations extending from said base portion, said base portion abutting against the one of the recesses through the aforementioned slot opening of the hollow member and said bifurcations extending outwardly from the hollow member, closely under the flange of said hollow member, and transversely to the longitudinal axis of the hollow member; spring means removably accommodated to the flange of said hollow member and resiliently biasing the detent means toward the base member of the headrest, and pushing means removably supported by the flange of the hollow member and having bifurcations, the ends of which abut against the bifurcations of the detent means and operable when actuated to disconnect the engagement of the base portion of the detent means with the base member of the headrest.